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[netbsd-mini2440.git] / sys / arch / dreamcast / dev / g2 / aica.c
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1 /* $NetBSD: aica.c,v 1.17 2008/01/06 10:33:24 he Exp $ */
3 /*
4 * Copyright (c) 2003 SHIMIZU Ryo <ryo@misakimix.org>
5 * All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/cdefs.h>
32 __KERNEL_RCSID(0, "$NetBSD: aica.c,v 1.17 2008/01/06 10:33:24 he Exp $");
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/device.h>
37 #include <sys/kernel.h>
38 #include <sys/proc.h>
39 #include <sys/audioio.h>
41 #include <dev/audio_if.h>
42 #include <dev/mulaw.h>
43 #include <dev/auconv.h>
45 #include <machine/bus.h>
46 #include <machine/sysasicvar.h>
48 #include <dreamcast/dev/g2/g2busvar.h>
49 #include <dreamcast/dev/g2/aicavar.h>
50 #include <dreamcast/dev/microcode/aica_armcode.h>
52 #define AICA_REG_ADDR 0x00700000
53 #define AICA_RAM_START 0x00800000
54 #define AICA_RAM_SIZE 0x00200000
55 #define AICA_NCHAN 64
56 #define AICA_TIMEOUT 0x1800
58 struct aica_softc {
59 struct device sc_dev; /* base device */
60 bus_space_tag_t sc_memt;
61 bus_space_handle_t sc_aica_regh;
62 bus_space_handle_t sc_aica_memh;
64 /* audio property */
65 int sc_open;
66 int sc_encodings;
67 int sc_precision;
68 int sc_channels;
69 int sc_rate;
70 void (*sc_intr)(void *);
71 void *sc_intr_arg;
73 int sc_output_master;
74 int sc_output_gain[2];
75 #define AICA_VOLUME_LEFT 0
76 #define AICA_VOLUME_RIGHT 1
78 /* work for output */
79 void *sc_buffer;
80 void *sc_buffer_start;
81 void *sc_buffer_end;
82 int sc_blksize;
83 int sc_nextfill;
86 const struct {
87 const char *name;
88 int encoding;
89 int precision;
90 } aica_encodings[] = {
91 {AudioEadpcm, AUDIO_ENCODING_ADPCM, 4},
92 {AudioEslinear, AUDIO_ENCODING_SLINEAR, 8},
93 {AudioEulinear, AUDIO_ENCODING_ULINEAR, 8},
94 {AudioEmulaw, AUDIO_ENCODING_ULAW, 8},
95 {AudioEalaw, AUDIO_ENCODING_ALAW, 8},
96 {AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16},
97 {AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16},
98 {AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16},
99 {AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16},
102 #define AICA_NFORMATS 5
103 static const struct audio_format aica_formats[AICA_NFORMATS] = {
104 {NULL, AUMODE_PLAY, AUDIO_ENCODING_ADPCM, 4, 4,
105 1, AUFMT_MONAURAL, 0, {1, 65536}},
106 {NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
107 1, AUFMT_MONAURAL, 0, {1, 65536}},
108 {NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
109 2, AUFMT_STEREO, 0, {1, 65536}},
110 {NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 8, 8,
111 1, AUFMT_MONAURAL, 0, {1, 65536}},
112 {NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 8, 8,
113 2, AUFMT_STEREO, 0, {1, 65536}},
116 int aica_match(struct device *, struct cfdata *, void *);
117 void aica_attach(struct device *, struct device *, void *);
118 int aica_print(void *, const char *);
120 CFATTACH_DECL(aica, sizeof(struct aica_softc), aica_match, aica_attach,
121 NULL, NULL);
123 const struct audio_device aica_device = {
124 "Dreamcast Sound",
126 "aica"
129 inline static void aica_g2fifo_wait(void);
130 void aica_enable(struct aica_softc *);
131 void aica_disable(struct aica_softc *);
132 void aica_memwrite(struct aica_softc *, bus_size_t, uint32_t *, int);
133 void aica_ch2p16write(struct aica_softc *, bus_size_t, uint16_t *, int);
134 void aica_ch2p8write(struct aica_softc *, bus_size_t, uint8_t *, int);
135 void aica_command(struct aica_softc *, uint32_t);
136 void aica_sendparam(struct aica_softc *, uint32_t, int, int);
137 void aica_play(struct aica_softc *, int, int, int, int);
138 void aica_fillbuffer(struct aica_softc *);
140 /* intr */
141 int aica_intr(void *);
143 /* for audio */
144 int aica_open(void *, int);
145 void aica_close(void *);
146 int aica_query_encoding(void *, struct audio_encoding *);
147 int aica_set_params(void *, int, int, audio_params_t *,
148 audio_params_t *, stream_filter_list_t *, stream_filter_list_t *);
149 int aica_round_blocksize(void *, int, int, const audio_params_t *);
150 size_t aica_round_buffersize(void *, int, size_t);
151 int aica_trigger_output(void *, void *, void *, int, void (*)(void *), void *,
152 const audio_params_t *);
153 int aica_trigger_input(void *, void *, void *, int, void (*)(void *), void *,
154 const audio_params_t *);
155 int aica_halt_output(void *);
156 int aica_halt_input(void *);
157 int aica_getdev(void *, struct audio_device *);
158 int aica_set_port(void *, mixer_ctrl_t *);
159 int aica_get_port(void *, mixer_ctrl_t *);
160 int aica_query_devinfo(void *, mixer_devinfo_t *);
161 void aica_encode(int, int, int, int, u_char *, u_short **);
162 int aica_get_props(void *);
164 const struct audio_hw_if aica_hw_if = {
165 aica_open,
166 aica_close,
167 NULL, /* aica_drain */
168 aica_query_encoding,
169 aica_set_params,
170 aica_round_blocksize,
171 NULL, /* aica_commit_setting */
172 NULL, /* aica_init_output */
173 NULL, /* aica_init_input */
174 NULL, /* aica_start_output */
175 NULL, /* aica_start_input */
176 aica_halt_output,
177 aica_halt_input,
178 NULL, /* aica_speaker_ctl */
179 aica_getdev,
180 NULL, /* aica_setfd */
181 aica_set_port,
182 aica_get_port,
183 aica_query_devinfo,
184 NULL, /* aica_allocm */
185 NULL, /* aica_freem */
187 aica_round_buffersize, /* aica_round_buffersize */
189 NULL, /* aica_mappage */
190 aica_get_props,
191 aica_trigger_output,
192 aica_trigger_input,
193 NULL, /* aica_dev_ioctl */
197 aica_match(struct device *parent, struct cfdata *cf, void *aux)
199 static int aica_matched = 0;
201 if (aica_matched)
202 return 0;
204 aica_matched = 1;
205 return 1;
208 void
209 aica_attach(struct device *parent, struct device *self, void *aux)
211 struct aica_softc *sc;
212 struct g2bus_attach_args *ga;
213 int i;
215 sc = (struct aica_softc *)self;
216 ga = aux;
217 sc->sc_memt = ga->ga_memt;
219 if (bus_space_map(sc->sc_memt, AICA_REG_ADDR, 0x3000, 0,
220 &sc->sc_aica_regh) != 0) {
221 printf(": can't map AICA register space\n");
222 return;
225 if (bus_space_map(sc->sc_memt, AICA_RAM_START, AICA_RAM_SIZE, 0,
226 &sc->sc_aica_memh) != 0) {
227 printf(": can't map AICA memory space\n");
228 return;
231 printf(": ARM7 Sound Processing Unit\n");
233 aica_disable(sc);
235 for (i = 0; i < AICA_NCHAN; i++)
236 bus_space_write_4(sc->sc_memt,sc->sc_aica_regh, i << 7,
237 ((bus_space_read_4(sc->sc_memt, sc->sc_aica_regh, i << 7)
238 & ~0x4000) | 0x8000));
240 /* load microcode, and clear memory */
241 bus_space_set_region_4(sc->sc_memt, sc->sc_aica_memh,
242 0, 0, AICA_RAM_SIZE / 4);
244 aica_memwrite(sc, 0, aica_armcode, sizeof(aica_armcode));
246 aica_enable(sc);
248 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname,
249 sysasic_intr_string(SYSASIC_IRL9));
250 sysasic_intr_establish(SYSASIC_EVENT_AICA, IPL_BIO, SYSASIC_IRL9,
251 aica_intr, sc);
253 audio_attach_mi(&aica_hw_if, sc, &sc->sc_dev);
255 /* init parameters */
256 sc->sc_output_master = 255;
257 sc->sc_output_gain[AICA_VOLUME_LEFT] = 255;
258 sc->sc_output_gain[AICA_VOLUME_RIGHT] = 255;
261 void
262 aica_enable(struct aica_softc *sc)
265 bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x28a8, 24);
266 bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00,
267 bus_space_read_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00) & ~1);
270 void
271 aica_disable(struct aica_softc *sc)
274 bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00,
275 bus_space_read_4(sc->sc_memt, sc->sc_aica_regh, 0x2c00) | 1);
278 inline static void
279 aica_g2fifo_wait(void)
281 int i;
283 i = AICA_TIMEOUT;
284 while (--i > 0)
285 if ((*(volatile uint32_t *)0xa05f688c) & 0x11)
286 break;
289 void
290 aica_memwrite(struct aica_softc *sc, bus_size_t offset, uint32_t *src, int len)
292 int n;
294 KASSERT((offset & 3) == 0);
295 n = (len + 3) / 4; /* uint32_t * n (aligned) */
297 aica_g2fifo_wait();
298 bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
299 offset, src, n);
302 void
303 aica_ch2p16write(struct aica_softc *sc, bus_size_t offset, uint16_t *src,
304 int len)
306 union {
307 uint32_t w[8];
308 uint16_t s[16];
309 } buf;
310 uint16_t *p;
311 int i;
313 KASSERT((offset & 3) == 0);
315 while (len >= 32) {
316 p = buf.s;
317 *p++ = *src++; src++;
318 *p++ = *src++; src++;
319 *p++ = *src++; src++;
320 *p++ = *src++; src++;
321 *p++ = *src++; src++;
322 *p++ = *src++; src++;
323 *p++ = *src++; src++;
324 *p++ = *src++; src++;
325 *p++ = *src++; src++;
326 *p++ = *src++; src++;
327 *p++ = *src++; src++;
328 *p++ = *src++; src++;
329 *p++ = *src++; src++;
330 *p++ = *src++; src++;
331 *p++ = *src++; src++;
332 *p++ = *src++; src++;
334 aica_g2fifo_wait();
335 bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
336 offset, buf.w , 32 / 4);
338 offset += sizeof(uint16_t) * 16;
339 len -= 32;
342 if (len / 2 > 0) {
343 p = buf.s;
344 for (i = 0; i < len / 2; i++) {
345 *p++ = *src++; src++;
348 aica_g2fifo_wait();
349 bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
350 offset, buf.w, len / 4);
354 void
355 aica_ch2p8write(struct aica_softc *sc, bus_size_t offset, uint8_t *src,
356 int len)
358 uint32_t buf[8];
359 uint8_t *p;
360 int i;
362 KASSERT((offset & 3) == 0);
363 while (len >= 32) {
364 p = (uint8_t *)buf;
366 *p++ = *src++; src++;
367 *p++ = *src++; src++;
368 *p++ = *src++; src++;
369 *p++ = *src++; src++;
370 *p++ = *src++; src++;
371 *p++ = *src++; src++;
372 *p++ = *src++; src++;
373 *p++ = *src++; src++;
374 *p++ = *src++; src++;
375 *p++ = *src++; src++;
376 *p++ = *src++; src++;
377 *p++ = *src++; src++;
378 *p++ = *src++; src++;
379 *p++ = *src++; src++;
380 *p++ = *src++; src++;
381 *p++ = *src++; src++;
382 *p++ = *src++; src++;
383 *p++ = *src++; src++;
384 *p++ = *src++; src++;
385 *p++ = *src++; src++;
386 *p++ = *src++; src++;
387 *p++ = *src++; src++;
388 *p++ = *src++; src++;
389 *p++ = *src++; src++;
390 *p++ = *src++; src++;
391 *p++ = *src++; src++;
392 *p++ = *src++; src++;
393 *p++ = *src++; src++;
394 *p++ = *src++; src++;
395 *p++ = *src++; src++;
396 *p++ = *src++; src++;
397 *p++ = *src++; src++;
399 aica_g2fifo_wait();
400 bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
401 offset, buf, 32 / 4);
403 offset += 32;
404 len -= 32;
407 if (len) {
408 p = (uint8_t *)buf;
409 for (i = 0; i < len; i++)
410 *p++ = *src++; src++;
412 aica_g2fifo_wait();
413 bus_space_write_region_4(sc->sc_memt, sc->sc_aica_memh,
414 offset, buf, len / 4);
419 aica_open(void *addr, int flags)
421 struct aica_softc *sc;
423 sc = addr;
424 if (sc->sc_open)
425 return EBUSY;
427 sc->sc_intr = NULL;
428 sc->sc_open = 1;
430 return 0;
433 void
434 aica_close(void *addr)
436 struct aica_softc *sc;
438 sc = addr;
439 sc->sc_open = 0;
440 sc->sc_intr = NULL;
444 aica_query_encoding(void *addr, struct audio_encoding *fp)
446 if (fp->index >= sizeof(aica_encodings) / sizeof(aica_encodings[0]))
447 return EINVAL;
449 strcpy(fp->name, aica_encodings[fp->index].name);
450 fp->encoding = aica_encodings[fp->index].encoding;
451 fp->precision = aica_encodings[fp->index].precision;
452 fp->flags = 0;
454 return 0;
458 aica_set_params(void *addr, int setmode, int usemode,
459 audio_params_t *play, audio_params_t *rec,
460 stream_filter_list_t *pfil, stream_filter_list_t *rfil)
462 struct aica_softc *sc;
463 const audio_params_t *hw;
464 int i;
466 i = auconv_set_converter(aica_formats, AICA_NFORMATS,
467 AUMODE_PLAY, play, false, pfil);
468 if (i < 0)
469 return EINVAL;
470 hw = pfil->req_size > 0 ? &pfil->filters[0].param : play;
471 sc = addr;
472 sc->sc_precision = hw->precision;
473 sc->sc_channels = hw->channels;
474 sc->sc_rate = hw->sample_rate;
475 sc->sc_encodings = hw->encoding;
476 return 0;
480 aica_round_blocksize(void *addr, int blk, int mode, const audio_params_t *param)
482 struct aica_softc *sc;
484 sc = addr;
485 switch (sc->sc_precision) {
486 case 4:
487 if (sc->sc_channels == 1)
488 return AICA_DMABUF_SIZE / 4;
489 else
490 return AICA_DMABUF_SIZE / 2;
491 break;
492 case 8:
493 if (sc->sc_channels == 1)
494 return AICA_DMABUF_SIZE / 2;
495 else
496 return AICA_DMABUF_SIZE;
497 break;
498 case 16:
499 if (sc->sc_channels == 1)
500 return AICA_DMABUF_SIZE;
501 else
502 return AICA_DMABUF_SIZE * 2;
503 break;
504 default:
505 break;
508 return AICA_DMABUF_SIZE / 4;
511 size_t
512 aica_round_buffersize(void *addr, int dir, size_t bufsize)
515 if (dir == AUMODE_PLAY)
516 return 65536;
518 return 512; /* XXX: AUMINBUF */
521 void
522 aica_command(struct aica_softc *sc, uint32_t command)
525 bus_space_write_4(sc->sc_memt, sc->sc_aica_memh,
526 AICA_ARM_CMD_COMMAND, command);
527 bus_space_write_4(sc->sc_memt,sc->sc_aica_memh, AICA_ARM_CMD_SERIAL,
528 bus_space_read_4(sc->sc_memt, sc->sc_aica_memh,
529 AICA_ARM_CMD_SERIAL) + 1);
532 void
533 aica_sendparam(struct aica_softc *sc, uint32_t command,
534 int32_t lparam, int32_t rparam)
537 bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
538 AICA_ARM_CMD_LPARAM, lparam);
539 bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
540 AICA_ARM_CMD_RPARAM, rparam);
542 aica_command(sc, command);
545 void
546 aica_play(struct aica_softc *sc, int blksize, int channel, int rate, int prec)
549 bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
550 AICA_ARM_CMD_BLOCKSIZE, blksize);
551 bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
552 AICA_ARM_CMD_CHANNEL, channel);
553 bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
554 AICA_ARM_CMD_RATE, rate);
555 bus_space_write_4(sc->sc_memt,sc->sc_aica_memh,
556 AICA_ARM_CMD_PRECISION, prec);
558 aica_command(sc, AICA_COMMAND_PLAY);
561 void
562 aica_fillbuffer(struct aica_softc *sc)
565 if (sc->sc_channels == 2) {
566 if (sc->sc_precision == 16) {
567 aica_ch2p16write(sc,
568 AICA_DMABUF_LEFT + sc->sc_nextfill,
569 (uint16_t *)sc->sc_buffer + 0, sc->sc_blksize / 2);
570 aica_ch2p16write(sc,
571 AICA_DMABUF_RIGHT + sc->sc_nextfill,
572 (uint16_t *)sc->sc_buffer + 1, sc->sc_blksize / 2);
573 } else if (sc->sc_precision == 8) {
574 aica_ch2p8write(sc, AICA_DMABUF_LEFT + sc->sc_nextfill,
575 (uint8_t *)sc->sc_buffer + 0, sc->sc_blksize / 2);
576 aica_ch2p8write(sc, AICA_DMABUF_RIGHT + sc->sc_nextfill,
577 (uint8_t *)sc->sc_buffer + 1, sc->sc_blksize / 2);
579 } else {
580 aica_memwrite(sc, AICA_DMABUF_MONO + sc->sc_nextfill,
581 sc->sc_buffer, sc->sc_blksize);
584 sc->sc_buffer = (int8_t *)sc->sc_buffer + sc->sc_blksize;
585 if (sc->sc_buffer >= sc->sc_buffer_end)
586 sc->sc_buffer = sc->sc_buffer_start;
588 sc->sc_nextfill ^= sc->sc_blksize / sc->sc_channels;
592 aica_intr(void *arg)
594 struct aica_softc *sc;
596 sc = arg;
597 aica_fillbuffer(sc);
599 /* call audio interrupt handler (audio_pint()) */
600 if (sc->sc_open && sc->sc_intr != NULL) {
601 (*(sc->sc_intr))(sc->sc_intr_arg);
604 /* clear SPU interrupt */
605 bus_space_write_4(sc->sc_memt, sc->sc_aica_regh, 0x28bc, 0x20);
606 return 1;
610 aica_trigger_output(void *addr, void *start, void *end, int blksize,
611 void (*intr)(void *), void *arg, const audio_params_t *param)
613 struct aica_softc *sc;
615 sc = addr;
616 aica_command(sc, AICA_COMMAND_INIT);
617 tsleep(aica_trigger_output, PWAIT, "aicawait", hz / 20);
619 sc->sc_buffer_start = sc->sc_buffer = start;
620 sc->sc_buffer_end = end;
621 sc->sc_blksize = blksize;
622 sc->sc_nextfill = 0;
624 sc->sc_intr = intr;
625 sc->sc_intr_arg = arg;
627 /* fill buffers in advance */
628 aica_intr(sc);
629 aica_intr(sc);
631 /* ...and start playing */
632 aica_play(sc, blksize / sc->sc_channels, sc->sc_channels, sc->sc_rate,
633 sc->sc_precision);
635 return 0;
639 aica_trigger_input(void *addr, void *start, void *end, int blksize,
640 void (*intr)(void *), void *arg, const audio_params_t *param)
643 return ENODEV;
647 aica_halt_output(void *addr)
649 struct aica_softc *sc;
651 sc = addr;
652 aica_command(sc, AICA_COMMAND_STOP);
653 return 0;
657 aica_halt_input(void *addr)
660 return ENODEV;
664 aica_getdev(void *addr, struct audio_device *ret)
667 *ret = aica_device;
668 return 0;
672 aica_set_port(void *addr, mixer_ctrl_t *mc)
674 struct aica_softc *sc;
676 sc = addr;
677 switch (mc->dev) {
678 case AICA_MASTER_VOL:
679 sc->sc_output_master =
680 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] & 0xff;
681 aica_sendparam(sc, AICA_COMMAND_MVOL,
682 sc->sc_output_master, sc->sc_output_master);
683 break;
684 case AICA_OUTPUT_GAIN:
685 sc->sc_output_gain[AICA_VOLUME_LEFT] =
686 mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] & 0xff;
687 sc->sc_output_gain[AICA_VOLUME_RIGHT] =
688 mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] & 0xff;
689 aica_sendparam(sc, AICA_COMMAND_VOL,
690 sc->sc_output_gain[AICA_VOLUME_LEFT],
691 sc->sc_output_gain[AICA_VOLUME_RIGHT]);
692 break;
693 default:
694 return EINVAL;
697 return 0;
701 aica_get_port(void *addr, mixer_ctrl_t *mc)
703 struct aica_softc *sc;
705 sc = addr;
706 switch (mc->dev) {
707 case AICA_MASTER_VOL:
708 if (mc->un.value.num_channels != 1)
709 return EINVAL;
710 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
711 L16TO256(L256TO16(sc->sc_output_master));
712 break;
713 case AICA_OUTPUT_GAIN:
714 mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
715 sc->sc_output_gain[AICA_VOLUME_LEFT];
716 mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
717 sc->sc_output_gain[AICA_VOLUME_RIGHT];
718 break;
719 default:
720 return EINVAL;
722 return 0;
726 aica_query_devinfo(void *addr, mixer_devinfo_t *md)
729 switch (md->index) {
730 case AICA_MASTER_VOL:
731 md->type = AUDIO_MIXER_VALUE;
732 md->mixer_class = AICA_OUTPUT_CLASS;
733 md->prev = md->next = AUDIO_MIXER_LAST;
734 strcpy(md->label.name, AudioNmaster);
735 md->un.v.num_channels = 1;
736 strcpy(md->un.v.units.name, AudioNvolume);
737 return 0;
738 case AICA_OUTPUT_GAIN:
739 md->type = AUDIO_MIXER_VALUE;
740 md->mixer_class = AICA_OUTPUT_CLASS;
741 md->prev = md->next = AUDIO_MIXER_LAST;
742 strcpy(md->label.name, AudioNoutput);
743 md->un.v.num_channels = 2;
744 strcpy(md->label.name, AudioNvolume);
745 return 0;
746 case AICA_OUTPUT_CLASS:
747 md->type = AUDIO_MIXER_CLASS;
748 md->mixer_class = AICA_OUTPUT_CLASS;
749 md->next = md->prev = AUDIO_MIXER_LAST;
750 strcpy(md->label.name, AudioCoutputs);
751 return 0;
754 return ENXIO;
758 aica_get_props(void *addr)
761 return 0;