xref: /openbsd-src/sys/dev/sbus/cs4231.c (revision 3a3fbb3f2e2521ab7c4a56b7ff7462ebd9095ec5)
1 /*	$OpenBSD: cs4231.c,v 1.7 2001/10/01 04:10:49 jason Exp $	*/
2 
3 /*
4  * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Jason L. Wright
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 /*
35  * Driver for CS4231 based audio found in some sun4m systems (cs4231)
36  * based on ideas from the S/Linux project and the NetBSD project.
37  */
38 
39 #include "audio.h"
40 #if NAUDIO > 0
41 
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/errno.h>
45 #include <sys/ioctl.h>
46 #include <sys/device.h>
47 #include <sys/proc.h>
48 #include <sys/malloc.h>
49 
50 #include <machine/bus.h>
51 #include <machine/intr.h>
52 #include <machine/autoconf.h>
53 
54 #include <sys/audioio.h>
55 #include <dev/audio_if.h>
56 #include <dev/auconv.h>
57 
58 #include <dev/ic/ad1848reg.h>
59 #include <dev/ic/cs4231reg.h>
60 #include <dev/ic/apcdmareg.h>
61 #include <dev/sbus/sbusvar.h>
62 #include <dev/sbus/cs4231var.h>
63 
64 #define	CSAUDIO_DAC_LVL		0
65 #define	CSAUDIO_LINE_IN_LVL	1
66 #define	CSAUDIO_MIC_LVL		2
67 #define	CSAUDIO_CD_LVL		3
68 #define	CSAUDIO_MONITOR_LVL	4
69 #define	CSAUDIO_OUTPUT_LVL	5
70 #define	CSAUDIO_LINE_IN_MUTE	6
71 #define	CSAUDIO_DAC_MUTE	7
72 #define	CSAUDIO_CD_MUTE		8
73 #define	CSAUDIO_MIC_MUTE	9
74 #define	CSAUDIO_MONITOR_MUTE	10
75 #define	CSAUDIO_OUTPUT_MUTE	11
76 #define	CSAUDIO_REC_LVL		12
77 #define	CSAUDIO_RECORD_SOURCE	13
78 #define	CSAUDIO_OUTPUT		14
79 #define	CSAUDIO_INPUT_CLASS	15
80 #define	CSAUDIO_OUTPUT_CLASS	16
81 #define	CSAUDIO_RECORD_CLASS	17
82 #define	CSAUDIO_MONITOR_CLASS	18
83 
84 #define	CSPORT_AUX2		0
85 #define	CSPORT_AUX1		1
86 #define	CSPORT_DAC		2
87 #define	CSPORT_LINEIN		3
88 #define	CSPORT_MONO		4
89 #define	CSPORT_MONITOR		5
90 #define	CSPORT_SPEAKER		6
91 #define	CSPORT_LINEOUT		7
92 #define	CSPORT_HEADPHONE	8
93 
94 #define MIC_IN_PORT	0
95 #define LINE_IN_PORT	1
96 #define AUX1_IN_PORT	2
97 #define DAC_IN_PORT	3
98 
99 #ifdef AUDIO_DEBUG
100 #define	DPRINTF(x)	printf x
101 #else
102 #define	DPRINTF(x)
103 #endif
104 
105 #define	CS_TIMEOUT	90000
106 
107 #define	CS_PC_LINEMUTE	XCTL0_ENABLE
108 #define	CS_PC_HDPHMUTE	XCTL1_ENABLE
109 #define	CS_AFS_PI	0x10
110 
111 #define CS_WRITE(sc,r,v)	\
112     bus_space_write_1((sc)->sc_bustag, (sc)->sc_regs, (r) << 2, (v))
113 #define	CS_READ(sc,r)		\
114     bus_space_read_1((sc)->sc_bustag, (sc)->sc_regs, (r) << 2)
115 
116 #define	APC_WRITE(sc,r,v)	\
117     bus_space_write_4(sc->sc_bustag, sc->sc_regs, r, v)
118 #define	APC_READ(sc,r)		\
119     bus_space_read_4(sc->sc_bustag, sc->sc_regs, r)
120 
121 int	cs4231_match	__P((struct device *, void *, void *));
122 void	cs4231_attach	__P((struct device *, struct device *, void *));
123 int	cs4231_intr	__P((void *));
124 
125 int	cs4231_set_speed	__P((struct cs4231_softc *, u_long *));
126 void	cs4231_setup_output	__P((struct cs4231_softc *sc));
127 
128 void		cs4231_write	__P((struct cs4231_softc *, u_int8_t, u_int8_t));
129 u_int8_t	cs4231_read	__P((struct cs4231_softc *, u_int8_t));
130 
131 /* Audio interface */
132 int	cs4231_open		__P((void *, int));
133 void	cs4231_close		__P((void *));
134 int	cs4231_query_encoding	__P((void *, struct audio_encoding *));
135 int	cs4231_set_params	__P((void *, int, int, struct audio_params *,
136     struct audio_params *));
137 int	cs4231_round_blocksize	__P((void *, int));
138 int	cs4231_commit_settings	__P((void *));
139 int	cs4231_halt_output	__P((void *));
140 int	cs4231_halt_input	__P((void *));
141 int	cs4231_getdev		__P((void *, struct audio_device *));
142 int	cs4231_set_port		__P((void *, mixer_ctrl_t *));
143 int	cs4231_get_port		__P((void *, mixer_ctrl_t *));
144 int	cs4231_query_devinfo	__P((void *addr, mixer_devinfo_t *));
145 void *	cs4231_alloc		__P((void *, u_long, int, int));
146 void	cs4231_free		__P((void *, void *, int));
147 u_long	cs4231_round_buffersize	__P((void *, u_long));
148 int	cs4231_get_props	__P((void *));
149 int	cs4231_trigger_output __P((void *, void *, void *, int,
150     void (*intr)__P((void *)), void *arg, struct audio_params *));
151 int	cs4231_trigger_input __P((void *, void *, void *, int,
152     void (*intr)__P((void *)), void *arg, struct audio_params *));
153 
154 struct audio_hw_if cs4231_sa_hw_if = {
155 	cs4231_open,
156 	cs4231_close,
157 	0,
158 	cs4231_query_encoding,
159 	cs4231_set_params,
160 	cs4231_round_blocksize,
161 	cs4231_commit_settings,
162 	0,
163 	0,
164 	0,
165 	0,
166 	cs4231_halt_output,
167 	cs4231_halt_input,
168 	0,
169 	cs4231_getdev,
170 	0,
171 	cs4231_set_port,
172 	cs4231_get_port,
173 	cs4231_query_devinfo,
174 	cs4231_alloc,
175 	cs4231_free,
176 	cs4231_round_buffersize,
177 	0,
178 	cs4231_get_props,
179 	cs4231_trigger_output,
180 	cs4231_trigger_input
181 };
182 
183 struct cfattach audiocs_ca = {
184 	sizeof (struct cs4231_softc), cs4231_match, cs4231_attach
185 };
186 
187 struct cfdriver audiocs_cd = {
188 	NULL, "audiocs", DV_DULL
189 };
190 
191 struct audio_device cs4231_device = {
192 	"SUNW,CS4231",
193 	"b",
194 	"onboard1",
195 };
196 
197 int
198 cs4231_match(parent, vcf, aux)
199 	struct device *parent;
200 	void *vcf, *aux;
201 {
202 	struct sbus_attach_args *sa = aux;
203 
204 	return (strcmp("SUNW,CS4231", sa->sa_name) == 0);
205 }
206 
207 void
208 cs4231_attach(parent, self, aux)
209 	struct device *parent, *self;
210 	void *aux;
211 {
212 	struct sbus_attach_args *sa = aux;
213 	struct cs4231_softc *sc = (struct cs4231_softc *)self;
214 	int node;
215 	u_int32_t sbusburst, burst;
216 
217 	node = sa->sa_node;
218 
219 	sc->sc_last_format = 0xffffffff;
220 
221 	/* Pass on the bus tags */
222 	sc->sc_bustag = sa->sa_bustag;
223 	sc->sc_dmatag = sa->sa_dmatag;
224 
225 	/* Make sure things are sane. */
226 	if (sa->sa_nintr != 1) {
227 		printf(": expected 1 interrupt, got %d\n", sa->sa_nintr);
228 		return;
229 	}
230 	if (sa->sa_nreg != 1) {
231 		printf(": expected 1 register set, got %d\n",
232 		    sa->sa_nreg);
233 		return;
234 	}
235 
236 	if (bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_AUDIO, 0,
237 	    cs4231_intr, sc) == NULL) {
238 		printf(": couldn't establish interrupt, pri %d\n", sa->sa_pri);
239 		return;
240 	}
241 
242 	if (sbus_bus_map(sa->sa_bustag,
243 	    (bus_type_t)sa->sa_reg[0].sbr_slot,
244 	    (bus_addr_t)sa->sa_reg[0].sbr_offset,
245 	    (bus_size_t)sa->sa_reg[0].sbr_size,
246 	    BUS_SPACE_MAP_LINEAR, 0, &sc->sc_regs) != 0) {
247 		printf(": couldn't map registers\n", self->dv_xname);
248 		return;
249 	}
250 
251 	sbus_establish(&sc->sc_sd, &sc->sc_dev);
252 
253 	sbusburst = ((struct sbus_softc *)parent)->sc_burst;
254 	if (sbusburst == 0)
255 		sbusburst = SBUS_BURST_32 - 1;	/* 1->16 */
256 	burst = getpropint(node, "burst-sizes", -1);
257 	if (burst == -1)
258 		burst = sbusburst;
259 	sc->sc_burst = burst & sbusburst;
260 
261 	printf("\n");
262 
263 	evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt);
264 
265 	audio_attach_mi(&cs4231_sa_hw_if, sc, &sc->sc_dev);
266 
267 	/* Default to speaker, unmuted, reasonable volume */
268 	sc->sc_out_port = CSPORT_SPEAKER;
269 	sc->sc_mute[CSPORT_SPEAKER] = 1;
270 	sc->sc_mute[CSPORT_MONITOR] = 1;
271 	sc->sc_volume[CSPORT_SPEAKER].left = 192;
272 	sc->sc_volume[CSPORT_SPEAKER].right = 192;
273 }
274 
275 /*
276  * Write to one of the indexed registers of cs4231.
277  */
278 void
279 cs4231_write(sc, r, v)
280 	struct cs4231_softc *sc;
281 	u_int8_t r, v;
282 {
283 	CS_WRITE(sc, AD1848_IADDR, r);
284 	CS_WRITE(sc, AD1848_IDATA, v);
285 }
286 
287 /*
288  * Read from one of the indexed registers of cs4231.
289  */
290 u_int8_t
291 cs4231_read(sc, r)
292 	struct cs4231_softc *sc;
293 	u_int8_t r;
294 {
295 	CS_WRITE(sc, AD1848_IADDR, r);
296 	return (CS_READ(sc, AD1848_IDATA));
297 }
298 
299 int
300 cs4231_set_speed(sc, argp)
301 	struct cs4231_softc *sc;
302 	u_long *argp;
303 
304 {
305 	/*
306 	 * The available speeds are in the following table. Keep the speeds in
307 	 * the increasing order.
308 	 */
309 	typedef struct {
310 		int speed;
311 		u_char bits;
312 	} speed_struct;
313 	u_long arg = *argp;
314 
315 	static speed_struct speed_table[] = {
316 		{5510,	(0 << 1) | CLOCK_XTAL2},
317 		{5510,	(0 << 1) | CLOCK_XTAL2},
318 		{6620,	(7 << 1) | CLOCK_XTAL2},
319 		{8000,	(0 << 1) | CLOCK_XTAL1},
320 		{9600,	(7 << 1) | CLOCK_XTAL1},
321 		{11025,	(1 << 1) | CLOCK_XTAL2},
322 		{16000,	(1 << 1) | CLOCK_XTAL1},
323 		{18900,	(2 << 1) | CLOCK_XTAL2},
324 		{22050,	(3 << 1) | CLOCK_XTAL2},
325 		{27420,	(2 << 1) | CLOCK_XTAL1},
326 		{32000,	(3 << 1) | CLOCK_XTAL1},
327 		{33075,	(6 << 1) | CLOCK_XTAL2},
328 		{33075,	(4 << 1) | CLOCK_XTAL2},
329 		{44100,	(5 << 1) | CLOCK_XTAL2},
330 		{48000,	(6 << 1) | CLOCK_XTAL1},
331 	};
332 
333 	int i, n, selected = -1;
334 
335 	n = sizeof(speed_table) / sizeof(speed_struct);
336 
337 	if (arg < speed_table[0].speed)
338 		selected = 0;
339 	if (arg > speed_table[n - 1].speed)
340 		selected = n - 1;
341 
342 	for (i = 1; selected == -1 && i < n; i++) {
343 		if (speed_table[i].speed == arg)
344 			selected = i;
345 		else if (speed_table[i].speed > arg) {
346 			int diff1, diff2;
347 
348 			diff1 = arg - speed_table[i - 1].speed;
349 			diff2 = speed_table[i].speed - arg;
350 			if (diff1 < diff2)
351 				selected = i - 1;
352 			else
353 				selected = i;
354 		}
355 	}
356 
357 	if (selected == -1) {
358 		printf("%s: can't find speed\n", sc->sc_dev.dv_xname);
359 		selected = 3;
360 	}
361 
362 	sc->sc_speed_bits = speed_table[selected].bits;
363 	sc->sc_need_commit = 1;
364 	*argp = speed_table[selected].speed;
365 
366 	return (0);
367 }
368 
369 /*
370  * Audio interface functions
371  */
372 int
373 cs4231_open(addr, flags)
374 	void *addr;
375 	int flags;
376 {
377 	struct cs4231_softc *sc = addr;
378 	int tries;
379 
380 	if (sc->sc_open)
381 		return (EBUSY);
382 	sc->sc_open = 1;
383 	sc->sc_locked = 0;
384 	sc->sc_rintr = 0;
385 	sc->sc_rarg = 0;
386 	sc->sc_pintr = 0;
387 	sc->sc_parg = 0;
388 
389 	APC_WRITE(sc, APC_CSR, APC_CSR_RESET);
390 	DELAY(10);
391 	APC_WRITE(sc, APC_CSR, 0);
392 	DELAY(10);
393 	APC_WRITE(sc, APC_CSR, APC_READ(sc, APC_CSR) | APC_CSR_CODEC_RESET);
394 
395 	DELAY(20);
396 
397 	APC_WRITE(sc, APC_CSR, APC_READ(sc, APC_CSR) & (~APC_CSR_CODEC_RESET));
398 
399 	for (tries = CS_TIMEOUT;
400 	     tries && CS_READ(sc, AD1848_IADDR) == SP_IN_INIT; tries--)
401 		DELAY(10);
402 	if (tries == 0)
403 		printf("%s: timeout waiting for reset\n", sc->sc_dev.dv_xname);
404 
405 	/* Turn on cs4231 mode */
406 	cs4231_write(sc, SP_MISC_INFO,
407 	    cs4231_read(sc, SP_MISC_INFO) | MODE2);
408 
409 	cs4231_setup_output(sc);
410 	return (0);
411 }
412 
413 void
414 cs4231_setup_output(sc)
415 	struct cs4231_softc *sc;
416 {
417 	u_int8_t pc, mi, rm, lm;
418 
419 	pc = cs4231_read(sc, SP_PIN_CONTROL) | CS_PC_HDPHMUTE | CS_PC_LINEMUTE;
420 
421 	mi = cs4231_read(sc, CS_MONO_IO_CONTROL) | MONO_OUTPUT_MUTE;
422 
423 	lm = cs4231_read(sc, SP_LEFT_OUTPUT_CONTROL);
424 	lm &= ~OUTPUT_ATTEN_BITS;
425 	lm |= ((~(sc->sc_volume[CSPORT_SPEAKER].left >> 2)) &
426 	    OUTPUT_ATTEN_BITS) | OUTPUT_MUTE;
427 
428 	rm = cs4231_read(sc, SP_RIGHT_OUTPUT_CONTROL);
429 	rm &= ~OUTPUT_ATTEN_BITS;
430 	rm |= ((~(sc->sc_volume[CSPORT_SPEAKER].right >> 2)) &
431 	    OUTPUT_ATTEN_BITS) | OUTPUT_MUTE;
432 
433 	if (sc->sc_mute[CSPORT_MONITOR]) {
434 		lm &= ~OUTPUT_MUTE;
435 		rm &= ~OUTPUT_MUTE;
436 	}
437 
438 	switch (sc->sc_out_port) {
439 	case CSPORT_HEADPHONE:
440 		if (sc->sc_mute[CSPORT_SPEAKER])
441 			pc &= ~CS_PC_HDPHMUTE;
442 		break;
443 	case CSPORT_SPEAKER:
444 		if (sc->sc_mute[CSPORT_SPEAKER])
445 			mi &= ~MONO_OUTPUT_MUTE;
446 		break;
447 	case CSPORT_LINEOUT:
448 		if (sc->sc_mute[CSPORT_SPEAKER])
449 			pc &= ~CS_PC_LINEMUTE;
450 		break;
451 	}
452 
453 	cs4231_write(sc, SP_LEFT_OUTPUT_CONTROL, lm);
454 	cs4231_write(sc, SP_RIGHT_OUTPUT_CONTROL, rm);
455 	cs4231_write(sc, SP_PIN_CONTROL, pc);
456 	cs4231_write(sc, CS_MONO_IO_CONTROL, mi);
457 }
458 
459 void
460 cs4231_close(addr)
461 	void *addr;
462 {
463 	struct cs4231_softc *sc = addr;
464 
465 	cs4231_halt_input(sc);
466 	cs4231_halt_output(sc);
467 	sc->sc_open = 0;
468 }
469 
470 int
471 cs4231_query_encoding(addr, fp)
472 	void *addr;
473 	struct audio_encoding *fp;
474 {
475 	int err = 0;
476 
477 	switch (fp->index) {
478 	case 0:
479 		strcpy(fp->name, AudioEmulaw);
480 		fp->encoding = AUDIO_ENCODING_ULAW;
481 		fp->precision = 8;
482 		fp->flags = 0;
483 		break;
484 	case 1:
485 		strcpy(fp->name, AudioEalaw);
486 		fp->encoding = AUDIO_ENCODING_ALAW;
487 		fp->precision = 8;
488 		fp->flags = 0;
489 		break;
490 	case 2:
491 		strcpy(fp->name, AudioEslinear_le);
492 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
493 		fp->precision = 16;
494 		fp->flags = 0;
495 		break;
496 	case 3:
497 		strcpy(fp->name, AudioEulinear);
498 		fp->encoding = AUDIO_ENCODING_ULINEAR;
499 		fp->precision = 8;
500 		fp->flags = 0;
501 		break;
502 	case 4:
503 		strcpy(fp->name, AudioEslinear_be);
504 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
505 		fp->precision = 16;
506 		fp->flags = 0;
507 		break;
508 	case 5:
509 		strcpy(fp->name, AudioEslinear);
510 		fp->encoding = AUDIO_ENCODING_SLINEAR;
511 		fp->precision = 8;
512 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
513 		break;
514 	case 6:
515 		strcpy(fp->name, AudioEulinear_le);
516 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
517 		fp->precision = 16;
518 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
519 		break;
520 	case 7:
521 		strcpy(fp->name, AudioEulinear_be);
522 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
523 		fp->precision = 16;
524 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
525 		break;
526 	case 8:
527 		strcpy(fp->name, AudioEadpcm);
528 		fp->encoding = AUDIO_ENCODING_ADPCM;
529 		fp->precision = 8;
530 		fp->flags = 0;
531 		break;
532 	default:
533 		err = EINVAL;
534 	}
535 	return (err);
536 }
537 
538 int
539 cs4231_set_params(addr, setmode, usemode, p, r)
540 	void *addr;
541 	int setmode, usemode;
542 	struct audio_params *p, *r;
543 {
544 	struct cs4231_softc *sc = (struct cs4231_softc *)addr;
545 	int err, bits, enc;
546 	void (*pswcode) __P((void *, u_char *, int cnt));
547 	void (*rswcode) __P((void *, u_char *, int cnt));
548 
549 	enc = p->encoding;
550 	pswcode = rswcode = 0;
551 	switch (enc) {
552 	case AUDIO_ENCODING_SLINEAR_LE:
553 		if (p->precision == 8) {
554 			enc = AUDIO_ENCODING_ULINEAR_LE;
555 			pswcode = rswcode = change_sign8;
556 		}
557 		break;
558 	case AUDIO_ENCODING_ULINEAR_LE:
559 		if (p->precision == 16) {
560 			enc = AUDIO_ENCODING_SLINEAR_LE;
561 			pswcode = rswcode = change_sign16;
562 		}
563 		break;
564 	case AUDIO_ENCODING_ULINEAR_BE:
565 		if (p->precision == 16) {
566 			enc = AUDIO_ENCODING_SLINEAR_BE;
567 			pswcode = rswcode = change_sign16;
568 		}
569 		break;
570 	}
571 
572 	switch (enc) {
573 	case AUDIO_ENCODING_ULAW:
574 		bits = FMT_ULAW >> 5;
575 		break;
576 	case AUDIO_ENCODING_ALAW:
577 		bits = FMT_ALAW >> 5;
578 		break;
579 	case AUDIO_ENCODING_ADPCM:
580 		bits = FMT_ADPCM >> 5;
581 		break;
582 	case AUDIO_ENCODING_SLINEAR_LE:
583 		if (p->precision == 16)
584 			bits = FMT_TWOS_COMP >> 5;
585 		else
586 			return (EINVAL);
587 		break;
588 	case AUDIO_ENCODING_SLINEAR_BE:
589 		if (p->precision == 16)
590 			bits = FMT_TWOS_COMP_BE >> 5;
591 		else
592 			return (EINVAL);
593 		break;
594 	case AUDIO_ENCODING_ULINEAR_LE:
595 		if (p->precision == 8)
596 			bits = FMT_PCM8 >> 5;
597 		else
598 			return (EINVAL);
599 		break;
600 	default:
601 		return (EINVAL);
602 	}
603 
604 	if (p->channels != 1 && p->channels != 2)
605 		return (EINVAL);
606 
607 	err = cs4231_set_speed(sc, &p->sample_rate);
608 	if (err)
609 		return (err);
610 
611 	p->sw_code = pswcode;
612 	r->sw_code = rswcode;
613 
614 	sc->sc_format_bits = bits;
615 	sc->sc_channels = p->channels;
616 	sc->sc_precision = p->precision;
617 	sc->sc_need_commit = 1;
618 	return (0);
619 }
620 
621 int
622 cs4231_round_blocksize(addr, blk)
623 	void *addr;
624 	int blk;
625 {
626 	return (blk & (-4));
627 }
628 
629 int
630 cs4231_commit_settings(addr)
631 	void *addr;
632 {
633 	struct cs4231_softc *sc = (struct cs4231_softc *)addr;
634 	int s, tries;
635 	u_int8_t r, fs;
636 
637 	if (sc->sc_need_commit == 0)
638 		return (0);
639 
640 	fs = sc->sc_speed_bits | (sc->sc_format_bits << 5);
641 	if (sc->sc_channels == 2)
642 		fs |= FMT_STEREO;
643 
644 	if (sc->sc_last_format == fs) {
645 		sc->sc_need_commit = 0;
646 		return (0);
647 	}
648 
649 	s = splaudio();
650 
651 	r = cs4231_read(sc, SP_INTERFACE_CONFIG) | AUTO_CAL_ENABLE;
652 	CS_WRITE(sc, AD1848_IADDR, MODE_CHANGE_ENABLE);
653 	CS_WRITE(sc, AD1848_IADDR, MODE_CHANGE_ENABLE | SP_INTERFACE_CONFIG);
654 	CS_WRITE(sc, AD1848_IDATA, r);
655 
656 	CS_WRITE(sc, AD1848_IADDR, MODE_CHANGE_ENABLE | SP_CLOCK_DATA_FORMAT);
657 	CS_WRITE(sc, AD1848_IDATA, fs);
658 	CS_READ(sc, AD1848_IDATA);
659 	CS_READ(sc, AD1848_IDATA);
660 	tries = CS_TIMEOUT;
661 	for (tries = CS_TIMEOUT;
662 	     tries && CS_READ(sc, AD1848_IADDR) == SP_IN_INIT; tries--)
663 		DELAY(10);
664 	if (tries == 0)
665 		printf("%s: timeout committing fspb\n", sc->sc_dev.dv_xname);
666 
667 	CS_WRITE(sc, AD1848_IADDR, MODE_CHANGE_ENABLE | CS_REC_FORMAT);
668 	CS_WRITE(sc, AD1848_IDATA, fs);
669 	CS_READ(sc, AD1848_IDATA);
670 	CS_READ(sc, AD1848_IDATA);
671 	for (tries = CS_TIMEOUT;
672 	     tries && CS_READ(sc, AD1848_IADDR) == SP_IN_INIT; tries--)
673 		DELAY(10);
674 	if (tries == 0)
675 		printf("%s: timeout committing cdf\n", sc->sc_dev.dv_xname);
676 
677 	CS_WRITE(sc, AD1848_IADDR, 0);
678 	for (tries = CS_TIMEOUT;
679 	     tries && CS_READ(sc, AD1848_IADDR) == SP_IN_INIT; tries--)
680 		DELAY(10);
681 	if (tries == 0)
682 		printf("%s: timeout waiting for !mce\n", sc->sc_dev.dv_xname);
683 
684 	CS_WRITE(sc, AD1848_IADDR, SP_TEST_AND_INIT);
685 	for (tries = CS_TIMEOUT;
686 	     tries && CS_READ(sc, AD1848_IDATA) & AUTO_CAL_IN_PROG; tries--)
687 		DELAY(10);
688 	if (tries == 0)
689 		printf("%s: timeout waiting for autocalibration\n",
690 		    sc->sc_dev.dv_xname);
691 
692 	splx(s);
693 
694 	sc->sc_need_commit = 0;
695 	return (0);
696 }
697 
698 int
699 cs4231_halt_output(addr)
700 	void *addr;
701 {
702 	struct cs4231_softc *sc = (struct cs4231_softc *)addr;
703 
704 	APC_WRITE(sc, APC_CSR, APC_READ(sc, APC_CSR) &
705 	    ~(APC_CSR_EI | APC_CSR_GIE | APC_CSR_PIE |
706 	      APC_CSR_EIE | APC_CSR_PDMA_GO | APC_CSR_PMIE));
707 	cs4231_write(sc, SP_INTERFACE_CONFIG,
708 	    cs4231_read(sc, SP_INTERFACE_CONFIG) & (~PLAYBACK_ENABLE));
709 	sc->sc_locked = 0;
710 	return (0);
711 }
712 
713 int
714 cs4231_halt_input(addr)
715 	void *addr;
716 {
717 	struct cs4231_softc *sc = (struct cs4231_softc *)addr;
718 
719 	APC_WRITE(sc, APC_CSR, APC_CSR_CAPTURE_PAUSE);
720 	cs4231_write(sc, SP_INTERFACE_CONFIG,
721 	    cs4231_read(sc, SP_INTERFACE_CONFIG) & (~CAPTURE_ENABLE));
722 	sc->sc_locked = 0;
723 	return (0);
724 }
725 
726 int
727 cs4231_getdev(addr, retp)
728 	void *addr;
729 	struct audio_device *retp;
730 {
731 	*retp = cs4231_device;
732 	return (0);
733 }
734 
735 int
736 cs4231_set_port(addr, cp)
737 	void *addr;
738 	mixer_ctrl_t *cp;
739 {
740 	struct cs4231_softc *sc = (struct cs4231_softc *)addr;
741 	int error = EINVAL;
742 
743 	DPRINTF(("cs4231_set_port: port=%d type=%d\n", cp->dev, cp->type));
744 
745 	switch (cp->dev) {
746 	case CSAUDIO_DAC_LVL:
747 		if (cp->type != AUDIO_MIXER_VALUE)
748 			break;
749 		if (cp->un.value.num_channels == 1)
750 			cs4231_write(sc, SP_LEFT_AUX1_CONTROL,
751 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] &
752 			    LINE_INPUT_ATTEN_BITS);
753 		else if (cp->un.value.num_channels == 2) {
754 			cs4231_write(sc, SP_LEFT_AUX1_CONTROL,
755 			    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] &
756 			    LINE_INPUT_ATTEN_BITS);
757 			cs4231_write(sc, SP_RIGHT_AUX1_CONTROL,
758 			    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] &
759 			    LINE_INPUT_ATTEN_BITS);
760 		} else
761 			break;
762 		error = 0;
763 		break;
764 	case CSAUDIO_LINE_IN_LVL:
765 		if (cp->type != AUDIO_MIXER_VALUE)
766 			break;
767 		if (cp->un.value.num_channels == 1)
768 			cs4231_write(sc, CS_LEFT_LINE_CONTROL,
769 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] &
770 			    AUX_INPUT_ATTEN_BITS);
771 		else if (cp->un.value.num_channels == 2) {
772 			cs4231_write(sc, CS_LEFT_LINE_CONTROL,
773 			    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] &
774 			    AUX_INPUT_ATTEN_BITS);
775 			cs4231_write(sc, CS_RIGHT_LINE_CONTROL,
776 			    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] &
777 			    AUX_INPUT_ATTEN_BITS);
778 		} else
779 			break;
780 		error = 0;
781 		break;
782 	case CSAUDIO_MIC_LVL:
783 		if (cp->type != AUDIO_MIXER_VALUE)
784 			break;
785 		if (cp->un.value.num_channels == 1) {
786 #if 0
787 			cs4231_write(sc, CS_MONO_IO_CONTROL,
788 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] &
789 			    MONO_INPUT_ATTEN_BITS);
790 #endif
791 		} else
792 			break;
793 		error = 0;
794 		break;
795 	case CSAUDIO_CD_LVL:
796 		if (cp->type != AUDIO_MIXER_VALUE)
797 			break;
798 		if (cp->un.value.num_channels == 1) {
799 			cs4231_write(sc, SP_LEFT_AUX2_CONTROL,
800 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] &
801 			    LINE_INPUT_ATTEN_BITS);
802 		} else if (cp->un.value.num_channels == 2) {
803 			cs4231_write(sc, SP_LEFT_AUX2_CONTROL,
804 			    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] &
805 			    LINE_INPUT_ATTEN_BITS);
806 			cs4231_write(sc, SP_RIGHT_AUX2_CONTROL,
807 			    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] &
808 			    LINE_INPUT_ATTEN_BITS);
809 		} else
810 			break;
811 		error = 0;
812 		break;
813 	case CSAUDIO_MONITOR_LVL:
814 		if (cp->type != AUDIO_MIXER_VALUE)
815 			break;
816 		if (cp->un.value.num_channels == 1)
817 			cs4231_write(sc, SP_DIGITAL_MIX,
818 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] << 2);
819 		else
820 			break;
821 		error = 0;
822 		break;
823 	case CSAUDIO_OUTPUT_LVL:
824 		if (cp->type != AUDIO_MIXER_VALUE)
825 			break;
826 		if (cp->un.value.num_channels == 1) {
827 			sc->sc_volume[CSPORT_SPEAKER].left =
828 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
829 			sc->sc_volume[CSPORT_SPEAKER].right =
830 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
831 		}
832 		else if (cp->un.value.num_channels == 2) {
833 			sc->sc_volume[CSPORT_SPEAKER].left =
834 			    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
835 			sc->sc_volume[CSPORT_SPEAKER].right =
836 			    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
837 		}
838 		else
839 			break;
840 
841 		cs4231_setup_output(sc);
842 		error = 0;
843 		break;
844 	case CSAUDIO_OUTPUT:
845 		if (cp->un.ord != CSPORT_LINEOUT &&
846 		    cp->un.ord != CSPORT_SPEAKER &&
847 		    cp->un.ord != CSPORT_HEADPHONE)
848 			return (EINVAL);
849 		sc->sc_out_port = cp->un.ord;
850 		cs4231_setup_output(sc);
851 		error = 0;
852 		break;
853 	case CSAUDIO_LINE_IN_MUTE:
854 		if (cp->type != AUDIO_MIXER_ENUM)
855 			break;
856 		sc->sc_mute[CSPORT_LINEIN] = cp->un.ord ? 1 : 0;
857 		error = 0;
858 		break;
859 	case CSAUDIO_DAC_MUTE:
860 		if (cp->type != AUDIO_MIXER_ENUM)
861 			break;
862 		sc->sc_mute[CSPORT_AUX1] = cp->un.ord ? 1 : 0;
863 		error = 0;
864 		break;
865 	case CSAUDIO_CD_MUTE:
866 		if (cp->type != AUDIO_MIXER_ENUM)
867 			break;
868 		sc->sc_mute[CSPORT_AUX2] = cp->un.ord ? 1 : 0;
869 		error = 0;
870 		break;
871 	case CSAUDIO_MIC_MUTE:
872 		if (cp->type != AUDIO_MIXER_ENUM)
873 			break;
874 		sc->sc_mute[CSPORT_MONO] = cp->un.ord ? 1 : 0;
875 		error = 0;
876 		break;
877 	case CSAUDIO_MONITOR_MUTE:
878 		if (cp->type != AUDIO_MIXER_ENUM)
879 			break;
880 		sc->sc_mute[CSPORT_MONITOR] = cp->un.ord ? 1 : 0;
881 		error = 0;
882 		break;
883 	case CSAUDIO_OUTPUT_MUTE:
884 		if (cp->type != AUDIO_MIXER_ENUM)
885 			break;
886 		sc->sc_mute[CSPORT_SPEAKER] = cp->un.ord ? 1 : 0;
887 		cs4231_setup_output(sc);
888 		error = 0;
889 		break;
890 	case CSAUDIO_REC_LVL:
891 		if (cp->type != AUDIO_MIXER_VALUE)
892 			break;
893 		break;
894 	case CSAUDIO_RECORD_SOURCE:
895 		if (cp->type != AUDIO_MIXER_ENUM)
896 			break;
897 		break;
898 	}
899 
900 	return (error);
901 }
902 
903 int
904 cs4231_get_port(addr, cp)
905 	void *addr;
906 	mixer_ctrl_t *cp;
907 {
908 	struct cs4231_softc *sc = (struct cs4231_softc *)addr;
909 	int error = EINVAL;
910 
911 	DPRINTF(("cs4231_get_port: port=%d type=%d\n", cp->dev, cp->type));
912 
913 	switch (cp->dev) {
914 	case CSAUDIO_DAC_LVL:
915 		if (cp->type != AUDIO_MIXER_VALUE)
916 			break;
917 		if (cp->un.value.num_channels == 1)
918 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]=
919 			    cs4231_read(sc, SP_LEFT_AUX1_CONTROL) &
920 			    LINE_INPUT_ATTEN_BITS;
921 		else if (cp->un.value.num_channels == 2) {
922 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
923 			    cs4231_read(sc, SP_LEFT_AUX1_CONTROL) &
924 			    LINE_INPUT_ATTEN_BITS;
925 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
926 			    cs4231_read(sc, SP_RIGHT_AUX1_CONTROL) &
927 			    LINE_INPUT_ATTEN_BITS;
928 		} else
929 			break;
930 		error = 0;
931 		break;
932 	case CSAUDIO_LINE_IN_LVL:
933 		if (cp->type != AUDIO_MIXER_VALUE)
934 			break;
935 		if (cp->un.value.num_channels == 1)
936 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
937 			    cs4231_read(sc, CS_LEFT_LINE_CONTROL) & AUX_INPUT_ATTEN_BITS;
938 		else if (cp->un.value.num_channels == 2) {
939 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
940 			    cs4231_read(sc, CS_LEFT_LINE_CONTROL) & AUX_INPUT_ATTEN_BITS;
941 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
942 			    cs4231_read(sc, CS_RIGHT_LINE_CONTROL) & AUX_INPUT_ATTEN_BITS;
943 		} else
944 			break;
945 		error = 0;
946 		break;
947 	case CSAUDIO_MIC_LVL:
948 		if (cp->type != AUDIO_MIXER_VALUE)
949 			break;
950 		if (cp->un.value.num_channels == 1) {
951 #if 0
952 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
953 			    cs4231_read(sc, CS_MONO_IO_CONTROL) &
954 			    MONO_INPUT_ATTEN_BITS;
955 #endif
956 		} else
957 			break;
958 		error = 0;
959 		break;
960 	case CSAUDIO_CD_LVL:
961 		if (cp->type != AUDIO_MIXER_VALUE)
962 			break;
963 		if (cp->un.value.num_channels == 1)
964 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
965 			    cs4231_read(sc, SP_LEFT_AUX2_CONTROL) &
966 			    LINE_INPUT_ATTEN_BITS;
967 		else if (cp->un.value.num_channels == 2) {
968 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
969 			    cs4231_read(sc, SP_LEFT_AUX2_CONTROL) &
970 			    LINE_INPUT_ATTEN_BITS;
971 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
972 			    cs4231_read(sc, SP_RIGHT_AUX2_CONTROL) &
973 			    LINE_INPUT_ATTEN_BITS;
974 		}
975 		else
976 			break;
977 		error = 0;
978 		break;
979 	case CSAUDIO_MONITOR_LVL:
980 		if (cp->type != AUDIO_MIXER_VALUE)
981 			break;
982 		if (cp->un.value.num_channels != 1)
983 			break;
984 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
985 		    cs4231_read(sc, SP_DIGITAL_MIX) >> 2;
986 		error = 0;
987 		break;
988 	case CSAUDIO_OUTPUT_LVL:
989 		if (cp->type != AUDIO_MIXER_VALUE)
990 			break;
991 		if (cp->un.value.num_channels == 1)
992 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
993 			    sc->sc_volume[CSPORT_SPEAKER].left;
994 		else if (cp->un.value.num_channels == 2) {
995 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
996 			    sc->sc_volume[CSPORT_SPEAKER].left;
997 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
998 			    sc->sc_volume[CSPORT_SPEAKER].right;
999 		}
1000 		else
1001 			break;
1002 		error = 0;
1003 		break;
1004 	case CSAUDIO_LINE_IN_MUTE:
1005 		if (cp->type != AUDIO_MIXER_ENUM)
1006 			break;
1007 		cp->un.ord = sc->sc_mute[CSPORT_LINEIN] ? 1 : 0;
1008 		error = 0;
1009 		break;
1010 	case CSAUDIO_DAC_MUTE:
1011 		if (cp->type != AUDIO_MIXER_ENUM)
1012 			break;
1013 		cp->un.ord = sc->sc_mute[CSPORT_AUX1] ? 1 : 0;
1014 		error = 0;
1015 		break;
1016 	case CSAUDIO_CD_MUTE:
1017 		if (cp->type != AUDIO_MIXER_ENUM)
1018 			break;
1019 		cp->un.ord = sc->sc_mute[CSPORT_AUX2] ? 1 : 0;
1020 		error = 0;
1021 		break;
1022 	case CSAUDIO_MIC_MUTE:
1023 		if (cp->type != AUDIO_MIXER_ENUM)
1024 			break;
1025 		cp->un.ord = sc->sc_mute[CSPORT_MONO] ? 1 : 0;
1026 		error = 0;
1027 		break;
1028 	case CSAUDIO_MONITOR_MUTE:
1029 		if (cp->type != AUDIO_MIXER_ENUM)
1030 			break;
1031 		cp->un.ord = sc->sc_mute[CSPORT_MONITOR] ? 1 : 0;
1032 		error = 0;
1033 		break;
1034 	case CSAUDIO_OUTPUT_MUTE:
1035 		if (cp->type != AUDIO_MIXER_ENUM)
1036 			break;
1037 		cp->un.ord = sc->sc_mute[CSPORT_SPEAKER] ? 1 : 0;
1038 		error = 0;
1039 		break;
1040 	case CSAUDIO_REC_LVL:
1041 		if (cp->type != AUDIO_MIXER_VALUE)
1042 			break;
1043 		if (cp->un.value.num_channels == 1) {
1044 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
1045 			    AUDIO_MIN_GAIN;
1046 		} else if (cp->un.value.num_channels == 2) {
1047 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
1048 			    AUDIO_MIN_GAIN;
1049 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
1050 			    AUDIO_MIN_GAIN;
1051 		} else
1052 			break;
1053 		error = 0;
1054 		break;
1055 	case CSAUDIO_RECORD_SOURCE:
1056 		if (cp->type != AUDIO_MIXER_ENUM) break;
1057 		cp->un.ord = MIC_IN_PORT;
1058 		error = 0;
1059 		break;
1060 	case CSAUDIO_OUTPUT:
1061 		if (cp->type != AUDIO_MIXER_ENUM) break;
1062 		cp->un.ord = sc->sc_out_port;
1063 		error = 0;
1064 		break;
1065 	default:
1066 		printf("Invalid kind!\n");
1067 	}
1068 	return (error);
1069 }
1070 
1071 int
1072 cs4231_query_devinfo(addr, dip)
1073 	void *addr;
1074 	mixer_devinfo_t *dip;
1075 {
1076 	int err = 0;
1077 
1078 	switch (dip->index) {
1079 	case CSAUDIO_MIC_LVL:		/* mono/microphone mixer */
1080 		dip->type = AUDIO_MIXER_VALUE;
1081 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1082 		dip->prev = AUDIO_MIXER_LAST;
1083 		dip->next = CSAUDIO_MIC_MUTE;
1084 		strcpy(dip->label.name, AudioNmicrophone);
1085 		dip->un.v.num_channels = 1;
1086 		strcpy(dip->un.v.units.name, AudioNvolume);
1087 		break;
1088 	case CSAUDIO_DAC_LVL:		/* dacout */
1089 		dip->type = AUDIO_MIXER_VALUE;
1090 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1091 		dip->prev = AUDIO_MIXER_LAST;
1092 		dip->next = CSAUDIO_DAC_MUTE;
1093 		strcpy(dip->label.name, AudioNdac);
1094 		dip->un.v.num_channels = 2;
1095 		strcpy(dip->un.v.units.name, AudioNvolume);
1096 		break;
1097 	case CSAUDIO_LINE_IN_LVL:	/* line */
1098 		dip->type = AUDIO_MIXER_VALUE;
1099 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1100 		dip->prev = AUDIO_MIXER_LAST;
1101 		dip->next = CSAUDIO_LINE_IN_MUTE;
1102 		strcpy(dip->label.name, AudioNline);
1103 		dip->un.v.num_channels = 2;
1104 		strcpy(dip->un.v.units.name, AudioNvolume);
1105 		break;
1106 	case CSAUDIO_CD_LVL:		/* cd */
1107 		dip->type = AUDIO_MIXER_VALUE;
1108 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1109 		dip->prev = AUDIO_MIXER_LAST;
1110 		dip->next = CSAUDIO_CD_MUTE;
1111 		strcpy(dip->label.name, AudioNcd);
1112 		dip->un.v.num_channels = 2;
1113 		strcpy(dip->un.v.units.name, AudioNvolume);
1114 		break;
1115 	case CSAUDIO_MONITOR_LVL:	/* monitor level */
1116 		dip->type = AUDIO_MIXER_VALUE;
1117 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
1118 		dip->prev = AUDIO_MIXER_LAST;
1119 		dip->next = CSAUDIO_MONITOR_MUTE;
1120 		strcpy(dip->label.name, AudioNmonitor);
1121 		dip->un.v.num_channels = 1;
1122 		strcpy(dip->un.v.units.name, AudioNvolume);
1123 		break;
1124 	case CSAUDIO_OUTPUT_LVL:
1125 		dip->type = AUDIO_MIXER_VALUE;
1126 		dip->mixer_class = CSAUDIO_OUTPUT_CLASS;
1127 		dip->prev = AUDIO_MIXER_LAST;
1128 		dip->next = CSAUDIO_OUTPUT_MUTE;
1129 		strcpy(dip->label.name, AudioNoutput);
1130 		dip->un.v.num_channels = 2;
1131 		strcpy(dip->un.v.units.name, AudioNvolume);
1132 		break;
1133 	case CSAUDIO_LINE_IN_MUTE:
1134 		dip->type = AUDIO_MIXER_ENUM;
1135 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1136 		dip->prev = CSAUDIO_LINE_IN_LVL;
1137 		dip->next = AUDIO_MIXER_LAST;
1138 		goto mute;
1139 	case CSAUDIO_DAC_MUTE:
1140 		dip->type = AUDIO_MIXER_ENUM;
1141 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1142 		dip->prev = CSAUDIO_DAC_LVL;
1143 		dip->next = AUDIO_MIXER_LAST;
1144 		goto mute;
1145 	case CSAUDIO_CD_MUTE:
1146 		dip->type = AUDIO_MIXER_ENUM;
1147 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1148 		dip->prev = CSAUDIO_CD_LVL;
1149 		dip->next = AUDIO_MIXER_LAST;
1150 		goto mute;
1151 	case CSAUDIO_MIC_MUTE:
1152 		dip->type = AUDIO_MIXER_ENUM;
1153 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1154 		dip->prev = CSAUDIO_MIC_LVL;
1155 		dip->next = AUDIO_MIXER_LAST;
1156 		goto mute;
1157 	case CSAUDIO_MONITOR_MUTE:
1158 		dip->type = AUDIO_MIXER_ENUM;
1159 		dip->mixer_class = CSAUDIO_OUTPUT_CLASS;
1160 		dip->prev = CSAUDIO_MONITOR_LVL;
1161 		dip->next = AUDIO_MIXER_LAST;
1162 		goto mute;
1163 	case CSAUDIO_OUTPUT_MUTE:
1164 		dip->type = AUDIO_MIXER_ENUM;
1165 		dip->mixer_class = CSAUDIO_OUTPUT_CLASS;
1166 		dip->prev = CSAUDIO_OUTPUT_LVL;
1167 		dip->next = AUDIO_MIXER_LAST;
1168 		goto mute;
1169 
1170 	mute:
1171 		strcpy(dip->label.name, AudioNmute);
1172 		dip->un.e.num_mem = 2;
1173 		strcpy(dip->un.e.member[0].label.name, AudioNon);
1174 		dip->un.e.member[0].ord = 0;
1175 		strcpy(dip->un.e.member[1].label.name, AudioNoff);
1176 		dip->un.e.member[1].ord = 1;
1177 		break;
1178 	case CSAUDIO_REC_LVL:		/* record level */
1179 		dip->type = AUDIO_MIXER_VALUE;
1180 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
1181 		dip->prev = AUDIO_MIXER_LAST;
1182 		dip->next = CSAUDIO_RECORD_SOURCE;
1183 		strcpy(dip->label.name, AudioNrecord);
1184 		dip->un.v.num_channels = 2;
1185 		strcpy(dip->un.v.units.name, AudioNvolume);
1186 		break;
1187 	case CSAUDIO_RECORD_SOURCE:
1188 		dip->type = AUDIO_MIXER_ENUM;
1189 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
1190 		dip->prev = CSAUDIO_REC_LVL;
1191 		dip->next = AUDIO_MIXER_LAST;
1192 		strcpy(dip->label.name, AudioNsource);
1193 		dip->un.e.num_mem = 3;
1194 		strcpy(dip->un.e.member[0].label.name, AudioNcd);
1195 		dip->un.e.member[0].ord = DAC_IN_PORT;
1196 		strcpy(dip->un.e.member[1].label.name, AudioNmicrophone);
1197 		dip->un.e.member[1].ord = MIC_IN_PORT;
1198 		strcpy(dip->un.e.member[2].label.name, AudioNdac);
1199 		dip->un.e.member[2].ord = AUX1_IN_PORT;
1200 		strcpy(dip->un.e.member[3].label.name, AudioNline);
1201 		dip->un.e.member[3].ord = LINE_IN_PORT;
1202 		break;
1203 	case CSAUDIO_OUTPUT:
1204 		dip->type = AUDIO_MIXER_ENUM;
1205 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
1206 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1207 		strcpy(dip->label.name, AudioNoutput);
1208 		dip->un.e.num_mem = 3;
1209 		strcpy(dip->un.e.member[0].label.name, AudioNspeaker);
1210 		dip->un.e.member[0].ord = CSPORT_SPEAKER;
1211 		strcpy(dip->un.e.member[1].label.name, AudioNline);
1212 		dip->un.e.member[1].ord = CSPORT_LINEOUT;
1213 		strcpy(dip->un.e.member[2].label.name, AudioNheadphone);
1214 		dip->un.e.member[2].ord = CSPORT_HEADPHONE;
1215 		break;
1216 	case CSAUDIO_INPUT_CLASS:	/* input class descriptor */
1217 		dip->type = AUDIO_MIXER_CLASS;
1218 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
1219 		dip->prev = AUDIO_MIXER_LAST;
1220 		dip->next = AUDIO_MIXER_LAST;
1221 		strcpy(dip->label.name, AudioCinputs);
1222 		break;
1223 	case CSAUDIO_OUTPUT_CLASS:	/* output class descriptor */
1224 		dip->type = AUDIO_MIXER_CLASS;
1225 		dip->mixer_class = CSAUDIO_OUTPUT_CLASS;
1226 		dip->prev = AUDIO_MIXER_LAST;
1227 		dip->next = AUDIO_MIXER_LAST;
1228 		strcpy(dip->label.name, AudioCoutputs);
1229 		break;
1230 	case CSAUDIO_MONITOR_CLASS:	/* monitor class descriptor */
1231 		dip->type = AUDIO_MIXER_CLASS;
1232 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
1233 		dip->prev = AUDIO_MIXER_LAST;
1234 		dip->next = AUDIO_MIXER_LAST;
1235 		strcpy(dip->label.name, AudioCmonitor);
1236 		break;
1237 	case CSAUDIO_RECORD_CLASS:	/* record class descriptor */
1238 		dip->type = AUDIO_MIXER_CLASS;
1239 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
1240 		dip->prev = AUDIO_MIXER_LAST;
1241 		dip->next = AUDIO_MIXER_LAST;
1242 		strcpy(dip->label.name, AudioCrecord);
1243 		break;
1244 	default:
1245 		err = ENXIO;
1246 	}
1247 
1248 	return (err);
1249 }
1250 
1251 u_long
1252 cs4231_round_buffersize(addr, size)
1253 	void *addr;
1254 	u_long size;
1255 {
1256 	return (size);
1257 }
1258 
1259 int
1260 cs4231_get_props(addr)
1261 	void *addr;
1262 {
1263 	return (AUDIO_PROP_FULLDUPLEX);
1264 }
1265 
1266 /*
1267  * Hardware interrupt handler
1268  */
1269 int
1270 cs4231_intr(v)
1271 	void *v;
1272 {
1273 	struct cs4231_softc *sc = (struct cs4231_softc *)v;
1274 	u_int32_t csr;
1275 	u_int8_t reg, status;
1276 	struct cs_dma *p;
1277 	int r = 0;
1278 
1279 	csr = APC_READ(sc, APC_CSR);
1280 	status = CS_READ(sc, AD1848_STATUS);
1281 	if (status & (INTERRUPT_STATUS | SAMPLE_ERROR)) {
1282 		reg = cs4231_read(sc, CS_IRQ_STATUS);
1283 		if (reg & CS_AFS_PI) {
1284 			cs4231_write(sc, SP_LOWER_BASE_COUNT, 0xff);
1285 			cs4231_write(sc, SP_UPPER_BASE_COUNT, 0xff);
1286 		}
1287 		CS_WRITE(sc, AD1848_STATUS, 0);
1288 	}
1289 
1290 	APC_WRITE(sc, APC_CSR, csr);
1291 
1292 	if (csr & (APC_CSR_PI|APC_CSR_PMI|APC_CSR_PIE|APC_CSR_PD))
1293 		r = 1;
1294 
1295 	if (csr & APC_CSR_PM) {
1296 		u_long nextaddr, togo;
1297 
1298 		p = sc->sc_nowplaying;
1299 		togo = sc->sc_playsegsz - sc->sc_playcnt;
1300 		if (togo == 0) {
1301 			nextaddr = (u_int32_t)p->dmamap->dm_segs[0].ds_addr;
1302 			sc->sc_playcnt = togo = sc->sc_blksz;
1303 		} else {
1304 			nextaddr = APC_READ(sc, APC_PNVA) + sc->sc_blksz;
1305 			if (togo > sc->sc_blksz)
1306 				togo = sc->sc_blksz;
1307 			sc->sc_playcnt += togo;
1308 		}
1309 
1310 		APC_WRITE(sc, APC_PNVA, nextaddr);
1311 		APC_WRITE(sc, APC_PNC, togo);
1312 
1313 		if (sc->sc_pintr != NULL)
1314 			(*sc->sc_pintr)(sc->sc_parg);
1315 		r = 1;
1316 	}
1317 
1318 	if (csr & APC_CSR_CI) {
1319 		if (sc->sc_rintr != NULL) {
1320 			r = 1;
1321 			(*sc->sc_rintr)(sc->sc_rarg);
1322 		}
1323 	}
1324 
1325 	return (r);
1326 }
1327 
1328 void *
1329 cs4231_alloc(addr, size, pool, flags)
1330 	void *addr;
1331 	u_long size;
1332 	int pool;
1333 	int flags;
1334 {
1335 	struct cs4231_softc *sc = (struct cs4231_softc *)addr;
1336 	bus_dma_tag_t dmat = sc->sc_dmatag;
1337 	struct cs_dma *p;
1338 
1339 	p = (struct cs_dma *)malloc(sizeof(struct cs_dma), pool, flags);
1340 	if (p == NULL)
1341 		goto fail;
1342 
1343 	if (bus_dmamap_create(dmat, size, 1, size, 0,
1344 	    BUS_DMA_NOWAIT, &p->dmamap) != 0)
1345 		goto fail;
1346 
1347 	p->size = size;
1348 
1349 	if (bus_dmamem_alloc(dmat, size, 64*1024, 0, p->segs,
1350 	    sizeof(p->segs)/sizeof(p->segs[0]), &p->nsegs,
1351 	    BUS_DMA_NOWAIT) != 0)
1352 		goto fail1;
1353 
1354 	if (bus_dmamem_map(dmat, p->segs, p->nsegs, p->size,
1355 	    &p->addr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT) != 0)
1356 		goto fail2;
1357 
1358 	if (bus_dmamap_load(dmat, p->dmamap, p->addr, size, NULL,
1359 	    BUS_DMA_NOWAIT) != 0)
1360 		goto fail3;
1361 
1362 	p->next = sc->sc_dmas;
1363 	sc->sc_dmas = p;
1364 	return (p->addr);
1365 
1366 fail3:
1367 	bus_dmamem_unmap(dmat, p->addr, p->size);
1368 fail2:
1369 	bus_dmamem_free(dmat, p->segs, p->nsegs);
1370 fail1:
1371 	bus_dmamap_destroy(dmat, p->dmamap);
1372 fail:
1373 	return (NULL);
1374 }
1375 
1376 void
1377 cs4231_free(addr, ptr, pool)
1378 	void *addr;
1379 	void *ptr;
1380 	int pool;
1381 {
1382 	struct cs4231_softc *sc = addr;
1383 	bus_dma_tag_t dmat = sc->sc_dmatag;
1384 	struct cs_dma *p, **pp;
1385 
1386 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &(*pp)->next) {
1387 		if (p->addr != ptr)
1388 			continue;
1389 		bus_dmamap_unload(dmat, p->dmamap);
1390 		bus_dmamem_unmap(dmat, p->addr, p->size);
1391 		bus_dmamem_free(dmat, p->segs, p->nsegs);
1392 		bus_dmamap_destroy(dmat, p->dmamap);
1393 		*pp = p->next;
1394 		free(p, pool);
1395 		return;
1396 	}
1397 	printf("%s: attempt to free rogue pointer\n", sc->sc_dev.dv_xname);
1398 }
1399 
1400 int
1401 cs4231_trigger_output(addr, start, end, blksize, intr, arg, param)
1402 	void *addr, *start, *end;
1403 	int blksize;
1404 	void (*intr) __P((void *));
1405 	void *arg;
1406 	struct audio_params *param;
1407 {
1408 	struct cs4231_softc *sc = addr;
1409 	struct cs_dma *p;
1410 	u_int32_t csr;
1411 	vaddr_t n;
1412 
1413 	if (sc->sc_locked != 0) {
1414 		printf("%s: trigger_output: already running\n",
1415 		    sc->sc_dev.dv_xname);
1416 		return (EINVAL);
1417 	}
1418 
1419 	sc->sc_locked = 1;
1420 	sc->sc_pintr = intr;
1421 	sc->sc_parg = arg;
1422 
1423 	for (p = sc->sc_dmas; p->addr != start; p = p->next)
1424 		/*EMPTY*/;
1425 	if (p == NULL) {
1426 		printf("%s: trigger_output: bad addr: %x\n",
1427 		    sc->sc_dev.dv_xname, start);
1428 		return (EINVAL);
1429 	}
1430 
1431 	n = (char *)end - (char *)start;
1432 
1433 	/*
1434 	 * Do only `blksize' at a time, so audio_pint() is kept
1435 	 * synchronous with us...
1436 	 */
1437 	sc->sc_blksz = blksize;
1438 	sc->sc_nowplaying = p;
1439 	sc->sc_playsegsz = n;
1440 
1441 	if (n > sc->sc_blksz)
1442 		n = sc->sc_blksz;
1443 
1444 	sc->sc_playcnt = n;
1445 
1446 	csr = APC_READ(sc, APC_CSR);
1447 
1448 	APC_WRITE(sc, APC_PNVA, (u_long)p->dmamap->dm_segs[0].ds_addr);
1449 	APC_WRITE(sc, APC_PNC, (u_long)n);
1450 
1451 	if ((csr & APC_CSR_PDMA_GO) == 0 || (csr & APC_CSR_PPAUSE) != 0) {
1452 		APC_WRITE(sc, APC_CSR,
1453 		    APC_READ(sc, APC_CSR) & ~(APC_CSR_PIE | APC_CSR_PPAUSE));
1454 		APC_WRITE(sc, APC_CSR, APC_READ(sc, APC_CSR) |
1455 		    APC_CSR_EI | APC_CSR_GIE | APC_CSR_PIE | APC_CSR_EIE |
1456 		    APC_CSR_PMIE | APC_CSR_PDMA_GO);
1457 		cs4231_write(sc, SP_LOWER_BASE_COUNT, 0xff);
1458 		cs4231_write(sc, SP_UPPER_BASE_COUNT, 0xff);
1459 		cs4231_write(sc, SP_INTERFACE_CONFIG,
1460 		    cs4231_read(sc, SP_INTERFACE_CONFIG) | PLAYBACK_ENABLE);
1461 	}
1462 	return (0);
1463 }
1464 
1465 int
1466 cs4231_trigger_input(addr, start, end, blksize, intr, arg, param)
1467 	void *addr, *start, *end;
1468 	int blksize;
1469 	void (*intr) __P((void *));
1470 	void *arg;
1471 	struct audio_params *param;
1472 {
1473 	return (ENXIO);
1474 }
1475 
1476 #endif /* NAUDIO > 0 */
1477