awacs.c revision 1.26.4.1 1 /* $NetBSD: awacs.c,v 1.26.4.1 2007/07/11 20:00:37 mjf Exp $ */
2
3 /*-
4 * Copyright (c) 2000 Tsubai Masanari. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: awacs.c,v 1.26.4.1 2007/07/11 20:00:37 mjf Exp $");
31
32 #include <sys/param.h>
33 #include <sys/audioio.h>
34 #include <sys/device.h>
35 #include <sys/malloc.h>
36 #include <sys/systm.h>
37 #include <sys/kthread.h>
38 #include <sys/kernel.h>
39
40 #include <dev/auconv.h>
41 #include <dev/audio_if.h>
42 #include <dev/mulaw.h>
43
44 #include <uvm/uvm_extern.h>
45
46 #include <machine/autoconf.h>
47 #include <machine/pio.h>
48
49 #include <dev/ofw/openfirm.h>
50 #include <macppc/dev/dbdma.h>
51
52 #include <dev/i2c/sgsmixvar.h>
53 #include "sgsmix.h"
54 #include "opt_awacs.h"
55
56 #ifdef AWACS_DEBUG
57 # define DPRINTF printf
58 #else
59 # define DPRINTF while (0) printf
60 #endif
61
62 /* sc_flags values */
63 #define AWACS_CAP_BSWAP 0x0001
64
65 struct awacs_softc {
66 struct device sc_dev;
67 int sc_flags;
68
69 void (*sc_ointr)(void *); /* DMA completion intr handler */
70 void *sc_oarg; /* arg for sc_ointr() */
71 int sc_opages; /* # of output pages */
72
73 void (*sc_iintr)(void *); /* DMA completion intr handler */
74 void *sc_iarg; /* arg for sc_iintr() */
75
76 uint32_t sc_record_source; /* recording source mask */
77 uint32_t sc_output_mask; /* output mask */
78 uint32_t sc_headphones_mask; /* which reading of the gpio means */
79 uint32_t sc_headphones_in; /* headphones are present */
80
81 int sc_screamer;
82 int sc_have_perch;
83 int vol_l, vol_r;
84 int sc_bass, sc_treble;
85 lwp_t *sc_thread;
86 int sc_event;
87 int sc_output_wanted;
88 #if NSGSMIX > 0
89 struct device *sc_sgsmix;
90 #endif
91
92 char *sc_reg;
93 u_int sc_codecctl0;
94 u_int sc_codecctl1;
95 u_int sc_codecctl2;
96 u_int sc_codecctl4;
97 u_int sc_codecctl5;
98 u_int sc_codecctl6;
99 u_int sc_codecctl7;
100 u_int sc_soundctl;
101
102 struct dbdma_regmap *sc_odma;
103 struct dbdma_regmap *sc_idma;
104 struct dbdma_command *sc_odmacmd;
105 struct dbdma_command *sc_idmacmd;
106
107 #define AWACS_NFORMATS 2
108 struct audio_format sc_formats[AWACS_NFORMATS];
109 };
110
111 static int awacs_match(struct device *, struct cfdata *, void *);
112 static void awacs_attach(struct device *, struct device *, void *);
113 static int awacs_intr(void *);
114 static int awacs_status_intr(void *);
115
116 static void awacs_close(void *);
117 static int awacs_query_encoding(void *, struct audio_encoding *);
118 static int awacs_set_params(void *, int, int, audio_params_t *, audio_params_t *,
119 stream_filter_list_t *, stream_filter_list_t *);
120
121 static int awacs_round_blocksize(void *, int, int, const audio_params_t *);
122 static int awacs_trigger_output(void *, void *, void *, int, void (*)(void *),
123 void *, const audio_params_t *);
124 static int awacs_trigger_input(void *, void *, void *, int, void (*)(void *),
125 void *, const audio_params_t *);
126 static int awacs_halt_output(void *);
127 static int awacs_halt_input(void *);
128 static int awacs_getdev(void *, struct audio_device *);
129 static int awacs_set_port(void *, mixer_ctrl_t *);
130 static int awacs_get_port(void *, mixer_ctrl_t *);
131 static int awacs_query_devinfo(void *, mixer_devinfo_t *);
132 static size_t awacs_round_buffersize(void *, int, size_t);
133 static paddr_t awacs_mappage(void *, void *, off_t, int);
134 static int awacs_get_props(void *);
135
136 static inline u_int awacs_read_reg(struct awacs_softc *, int);
137 static inline void awacs_write_reg(struct awacs_softc *, int, int);
138 static void awacs_write_codec(struct awacs_softc *, int);
139
140 static void awacs_set_volume(struct awacs_softc *, int, int);
141 static void awacs_set_speaker_volume(struct awacs_softc *, int, int);
142 static void awacs_set_ext_volume(struct awacs_softc *, int, int);
143 static void awacs_set_loopthrough_volume(struct awacs_softc *, int, int);
144 static int awacs_set_rate(struct awacs_softc *, const audio_params_t *);
145 static void awacs_select_output(struct awacs_softc *, int);
146 static int awacs_check_headphones(struct awacs_softc *);
147 static void awacs_thread(void *);
148
149 #if NSGSMIX > 0
150 static void awacs_set_bass(struct awacs_softc *, int);
151 static void awacs_set_treble(struct awacs_softc *, int);
152 #endif
153 static int awacs_setup_sgsmix(struct device *);
154
155 CFATTACH_DECL(awacs, sizeof(struct awacs_softc),
156 awacs_match, awacs_attach, NULL, NULL);
157
158 const struct audio_hw_if awacs_hw_if = {
159 NULL, /* open */
160 awacs_close,
161 NULL,
162 awacs_query_encoding,
163 awacs_set_params,
164 awacs_round_blocksize,
165 NULL,
166 NULL,
167 NULL,
168 NULL,
169 NULL,
170 awacs_halt_output,
171 awacs_halt_input,
172 NULL,
173 awacs_getdev,
174 NULL,
175 awacs_set_port,
176 awacs_get_port,
177 awacs_query_devinfo,
178 NULL,
179 NULL,
180 awacs_round_buffersize,
181 awacs_mappage,
182 awacs_get_props,
183 awacs_trigger_output,
184 awacs_trigger_input,
185 NULL,
186 };
187
188 struct audio_device awacs_device = {
189 "AWACS",
190 "",
191 "awacs"
192 };
193
194 #define AWACS_NFORMATS 2
195 #define AWACS_FORMATS_LE 0
196 static const struct audio_format awacs_formats[AWACS_NFORMATS] = {
197 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
198 2, AUFMT_STEREO, 8, {7350, 8820, 11025, 14700, 17640, 22050, 29400, 44100}},
199 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_BE, 16, 16,
200 2, AUFMT_STEREO, 8, {7350, 8820, 11025, 14700, 17640, 22050, 29400, 44100}},
201 };
202
203 /* register offset */
204 #define AWACS_SOUND_CTRL 0x00
205 #define AWACS_CODEC_CTRL 0x10
206 #define AWACS_CODEC_STATUS 0x20
207 #define AWACS_CLIP_COUNT 0x30
208 #define AWACS_BYTE_SWAP 0x40
209
210 /* sound control */
211 #define AWACS_INPUT_SUBFRAME0 0x00000001
212 #define AWACS_INPUT_SUBFRAME1 0x00000002
213 #define AWACS_INPUT_SUBFRAME2 0x00000004
214 #define AWACS_INPUT_SUBFRAME3 0x00000008
215
216 #define AWACS_OUTPUT_SUBFRAME0 0x00000010
217 #define AWACS_OUTPUT_SUBFRAME1 0x00000020
218 #define AWACS_OUTPUT_SUBFRAME2 0x00000040
219 #define AWACS_OUTPUT_SUBFRAME3 0x00000080
220
221 #define AWACS_RATE_44100 0x00000000
222 #define AWACS_RATE_29400 0x00000100
223 #define AWACS_RATE_22050 0x00000200
224 #define AWACS_RATE_17640 0x00000300
225 #define AWACS_RATE_14700 0x00000400
226 #define AWACS_RATE_11025 0x00000500
227 #define AWACS_RATE_8820 0x00000600
228 #define AWACS_RATE_7350 0x00000700
229 #define AWACS_RATE_MASK 0x00000700
230
231 #define AWACS_ERROR 0x00000800
232 #define AWACS_PORTCHG 0x00001000
233 #define AWACS_INTR_ERROR 0x00002000 /* interrupt on error */
234 #define AWACS_INTR_PORTCHG 0x00004000 /* interrupt on port change */
235
236 #define AWACS_STATUS_SUBFRAME 0x00018000 /* mask */
237
238 /* codec control */
239 #define AWACS_CODEC_ADDR0 0x00000000
240 #define AWACS_CODEC_ADDR1 0x00001000
241 #define AWACS_CODEC_ADDR2 0x00002000
242 #define AWACS_CODEC_ADDR4 0x00004000
243 #define AWACS_CODEC_ADDR5 0x00005000
244 #define AWACS_CODEC_ADDR6 0x00006000
245 #define AWACS_CODEC_ADDR7 0x00007000
246 #define AWACS_CODEC_EMSEL0 0x00000000
247 #define AWACS_CODEC_EMSEL1 0x00400000
248 #define AWACS_CODEC_EMSEL2 0x00800000
249 #define AWACS_CODEC_EMSEL4 0x00c00000
250 #define AWACS_CODEC_BUSY 0x01000000
251
252 /* cc0 */
253 #define AWACS_DEFAULT_CD_GAIN 0x000000bb
254 #define AWACS_INPUT_CD 0x00000200
255 #define AWACS_INPUT_LINE 0x00000400
256 #define AWACS_INPUT_MICROPHONE 0x00000800
257 #define AWACS_INPUT_MASK 0x00000e00
258
259 /* cc1 */
260 #define AWACS_LOOP_THROUGH 0x00000040
261 #define AWACS_MUTE_SPEAKER 0x00000080
262 #define AWACS_MUTE_HEADPHONE 0x00000200
263 #define AWACS_PARALLEL_OUTPUT 0x00000c00
264
265 /* output */
266 #define OUTPUT_SPEAKER 1
267 #define OUTPUT_HEADPHONES 2
268
269 /* codec status */
270
271 static const char *screamer[] = {"screamer", NULL};
272
273 /*
274 * list machines that have the headphone detect GPIO reversed here.
275 * so far the only known case is the PowerBook 3400c and similar machines
276 */
277 static const char *detect_reversed[] = {"AAPL,3400/2400",
278 "AAPL,3500",
279 NULL};
280
281 static int
282 awacs_match(struct device *parent, struct cfdata *match, void *aux)
283 {
284 struct confargs *ca;
285
286 ca = aux;
287 if (strcmp(ca->ca_name, "i2s") == 0)
288 return 1;
289
290 if (strcmp(ca->ca_name, "awacs") != 0 &&
291 strcmp(ca->ca_name, "davbus") != 0)
292 return 0;
293
294 if (ca->ca_nreg < 24 || ca->ca_nintr < 12)
295 return 0;
296
297 return 1;
298 }
299
300 static void
301 awacs_attach(struct device *parent, struct device *self, void *aux)
302 {
303 struct awacs_softc *sc;
304 struct confargs *ca;
305 int cirq, oirq, iirq, cirq_type, oirq_type, iirq_type;
306 int len = -1, perch;
307 int root_node;
308 char compat[256];
309
310 sc = (struct awacs_softc *)self;
311 ca = aux;
312
313 sc->sc_reg = mapiodev(ca->ca_baseaddr + ca->ca_reg[0], ca->ca_reg[1]);
314
315 /* out */
316 sc->sc_odma = mapiodev(ca->ca_baseaddr + ca->ca_reg[2], ca->ca_reg[3]);
317 sc->sc_odmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command));
318 /* in */
319 sc->sc_idma = mapiodev(ca->ca_baseaddr + ca->ca_reg[4], ca->ca_reg[5]);
320 sc->sc_idmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command));
321
322 if (strcmp(ca->ca_name, "i2s") == 0) {
323 int node, intr[6];
324
325 node = OF_child(ca->ca_node);
326 if (node == 0) {
327 printf("no i2s-a child\n");
328 return;
329 }
330 if (OF_getprop(node, "interrupts", intr, sizeof(intr)) == -1) {
331 printf("no interrupt property\n");
332 return;
333 }
334
335 cirq = intr[0];
336 oirq = intr[2];
337 iirq = intr[4];
338 cirq_type = intr[1] ? IST_LEVEL : IST_EDGE;
339 oirq_type = intr[3] ? IST_LEVEL : IST_EDGE;
340 iirq_type = intr[5] ? IST_LEVEL : IST_EDGE;
341 } else if (ca->ca_nintr == 24) {
342 cirq = ca->ca_intr[0];
343 oirq = ca->ca_intr[2];
344 iirq = ca->ca_intr[4];
345 cirq_type = ca->ca_intr[1] ? IST_LEVEL : IST_EDGE;
346 oirq_type = ca->ca_intr[3] ? IST_LEVEL : IST_EDGE;
347 iirq_type = ca->ca_intr[5] ? IST_LEVEL : IST_EDGE;
348 } else {
349 cirq = ca->ca_intr[0];
350 oirq = ca->ca_intr[1];
351 iirq = ca->ca_intr[2];
352 cirq_type = oirq_type = iirq_type = IST_LEVEL;
353 }
354
355 intr_establish(cirq, cirq_type, IPL_BIO, awacs_status_intr, sc);
356 intr_establish(oirq, oirq_type, IPL_AUDIO, awacs_intr, sc);
357 intr_establish(iirq, iirq_type, IPL_AUDIO, awacs_intr, sc);
358
359 /* check if the chip is a screamer */
360 sc->sc_screamer = (of_compatible(ca->ca_node, screamer) != -1);
361 if (!sc->sc_screamer) {
362 /* look for 'sound' child node */
363 int sound_node;
364
365 sound_node = OF_child(ca->ca_node);
366 while ((sound_node != 0) && (!sc->sc_screamer)) {
367
368 sc->sc_screamer =
369 (of_compatible(sound_node, screamer) != -1);
370 sound_node = OF_peer(sound_node);
371 }
372 }
373
374 if (sc->sc_screamer) {
375 printf(" Screamer");
376 }
377
378 printf(": irq %d,%d,%d\n", cirq, oirq, iirq);
379
380 sc->vol_l = 0;
381 sc->vol_r = 0;
382
383 memcpy(&sc->sc_formats, awacs_formats, sizeof(awacs_formats));
384
385 /* XXX Uni-North based models don't have byteswap capability. */
386 if (OF_finddevice("/uni-n") == -1) {
387
388 sc->sc_flags |= AWACS_CAP_BSWAP;
389 } else {
390
391 AUFMT_INVALIDATE(&sc->sc_formats[AWACS_FORMATS_LE]);
392 }
393
394 sc->sc_soundctl = AWACS_INPUT_SUBFRAME0 | AWACS_OUTPUT_SUBFRAME0 |
395 AWACS_RATE_44100 | AWACS_INTR_PORTCHG;
396 awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
397
398 sc->sc_codecctl0 = AWACS_CODEC_ADDR0 | AWACS_CODEC_EMSEL0;
399 sc->sc_codecctl1 = AWACS_CODEC_ADDR1 | AWACS_CODEC_EMSEL0;
400 sc->sc_codecctl2 = AWACS_CODEC_ADDR2 | AWACS_CODEC_EMSEL0;
401 sc->sc_codecctl4 = AWACS_CODEC_ADDR4 | AWACS_CODEC_EMSEL0;
402 sc->sc_codecctl5 = AWACS_CODEC_ADDR5 | AWACS_CODEC_EMSEL0;
403 sc->sc_codecctl6 = AWACS_CODEC_ADDR6 | AWACS_CODEC_EMSEL0;
404 sc->sc_codecctl7 = AWACS_CODEC_ADDR7 | AWACS_CODEC_EMSEL0;
405
406 sc->sc_codecctl0 |= AWACS_INPUT_CD | AWACS_DEFAULT_CD_GAIN;
407 awacs_write_codec(sc, sc->sc_codecctl0);
408
409 /* Set loopthrough for external mixer on beige G3 */
410 sc->sc_codecctl1 |= (AWACS_LOOP_THROUGH | AWACS_PARALLEL_OUTPUT);
411
412 printf("%s: ", sc->sc_dev.dv_xname);
413
414 root_node = OF_finddevice("/");
415 if (of_compatible(root_node, detect_reversed) != -1) {
416
417 /* 0x02 is for the microphone jack, high active */
418 /*
419 * for some reason the gpio for the headphones jack is low
420 * active on the PB3400 and similar machines
421 */
422 sc->sc_headphones_mask = 0x8;
423 sc->sc_headphones_in = 0x0;
424 } else if (sc->sc_screamer) {
425
426 /*
427 * XXX
428 * not sure if that's true for all screamers or just beige G3
429 */
430 sc->sc_headphones_mask = 0x04;
431 sc->sc_headphones_in = 0x04;
432 } else {
433 /* while on other machines it's high active as well */
434 sc->sc_headphones_mask = 0x8;
435 sc->sc_headphones_in = 0x8;
436 }
437 if (awacs_check_headphones(sc)) {
438
439 /* default output to headphones */
440 printf("headphones\n");
441 sc->sc_output_mask = OUTPUT_HEADPHONES;
442 } else {
443
444 /* default output to speakers */
445 printf("speaker\n");
446 sc->sc_output_mask = OUTPUT_SPEAKER;
447 }
448 sc->sc_output_wanted = sc->sc_output_mask;
449 awacs_select_output(sc, sc->sc_output_mask);
450
451 delay(100);
452 if (sc->sc_screamer) {
453 awacs_write_codec(sc, sc->sc_codecctl6);
454 awacs_write_codec(sc, sc->sc_codecctl5);
455 delay(2);
456 awacs_write_codec(sc, sc->sc_codecctl1);
457 awacs_write_codec(sc, sc->sc_codecctl7);
458 }
459
460 /* default input from CD */
461 sc->sc_record_source = 1 << 0;
462 sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
463 sc->sc_codecctl0 |= AWACS_INPUT_CD;
464 awacs_write_codec(sc, sc->sc_codecctl0);
465
466 /* Enable interrupts and looping mode. */
467 /* XXX ... */
468
469 sc->sc_codecctl1 |= (AWACS_LOOP_THROUGH | AWACS_PARALLEL_OUTPUT);
470 awacs_write_codec(sc, sc->sc_codecctl1);
471
472 #if NSGSMIX > 0
473 sc->sc_sgsmix = NULL;
474 #endif
475 sc->sc_have_perch = 0;
476 if ((perch = OF_finddevice("/perch")) != -1) {
477
478 len = OF_getprop(perch, "compatible", compat, 255);
479 if (len > 0) {
480 printf("%s: found '%s' personality card\n",
481 sc->sc_dev.dv_xname, compat);
482 sc->sc_have_perch = 1;
483 config_finalize_register(&sc->sc_dev, awacs_setup_sgsmix);
484 }
485 }
486
487 /* Set initial volume[s] */
488 awacs_set_volume(sc, 144, 144);
489 awacs_set_loopthrough_volume(sc, 255, 255);
490
491 audio_attach_mi(&awacs_hw_if, sc, &sc->sc_dev);
492
493 if (kthread_create(PRI_NONE, 0, NULL, awacs_thread, sc,
494 &sc->sc_thread, "%s", "awacs") != 0) {
495 printf("awacs: unable to create event kthread");
496 }
497 }
498
499 static int
500 awacs_setup_sgsmix(struct device *cookie)
501 {
502 struct awacs_softc *sc = (struct awacs_softc *)cookie;
503 #if NSGSMIX > 0
504 struct device *dv;
505 #endif
506
507 if (!sc->sc_have_perch)
508 return 0;
509 #if NSGSMIX > 0
510 /* look for sgsmix */
511 for (dv = alldevs.tqh_first; dv; dv=dv->dv_list.tqe_next) {
512 if (device_is_a(dv, "sgsmix")) {
513 sc->sc_sgsmix = dv;
514 break;
515 }
516 }
517 if (sc->sc_sgsmix == NULL)
518 return 0;
519
520 printf("%s: using %s\n", sc->sc_dev.dv_xname,
521 sc->sc_sgsmix->dv_xname);
522
523 awacs_select_output(sc, sc->sc_output_mask);
524 awacs_set_volume(sc, sc->vol_l, sc->vol_r);
525 awacs_set_bass(sc, 128);
526 awacs_set_treble(sc, 128);
527 wakeup(&sc->sc_event);
528 #endif
529 return 0;
530 }
531
532
533 static inline u_int
534 awacs_read_reg(struct awacs_softc *sc, int reg)
535 {
536 char *addr;
537
538 addr = sc->sc_reg;
539 return in32rb(addr + reg);
540 }
541
542 static inline void
543 awacs_write_reg(struct awacs_softc *sc, int reg, int val)
544 {
545 char *addr;
546
547 addr = sc->sc_reg;
548 out32rb(addr + reg, val);
549 }
550
551 static void
552 awacs_write_codec(struct awacs_softc *sc, int value)
553 {
554
555 do {
556 delay(100);
557 } while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
558
559 awacs_write_reg(sc, AWACS_CODEC_CTRL, value);
560
561 do {
562 delay(100);
563 } while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
564 }
565
566 static int
567 awacs_intr(void *v)
568 {
569 struct awacs_softc *sc;
570 struct dbdma_command *cmd;
571 int count;
572 int status;
573
574 sc = v;
575 cmd = sc->sc_odmacmd;
576 count = sc->sc_opages;
577 /* Fill used buffer(s). */
578 while (count-- > 0) {
579 /* if DBDMA_INT_ALWAYS */
580 if (in16rb(&cmd->d_command) & 0x30) { /* XXX */
581 status = in16rb(&cmd->d_status);
582 cmd->d_status = 0;
583 if (status) /* status == 0x8400 */
584 if (sc->sc_ointr)
585 (*sc->sc_ointr)(sc->sc_oarg);
586 }
587 cmd++;
588 }
589
590 return 1;
591 }
592
593 /*
594 * Close function is called at splaudio().
595 */
596 static void
597 awacs_close(void *h)
598 {
599 struct awacs_softc *sc;
600
601 sc = h;
602 awacs_halt_output(sc);
603 awacs_halt_input(sc);
604
605 sc->sc_ointr = 0;
606 sc->sc_iintr = 0;
607 }
608
609 static int
610 awacs_query_encoding(void *h, struct audio_encoding *ae)
611 {
612 struct awacs_softc *sc;
613
614 sc = h;
615 ae->flags = AUDIO_ENCODINGFLAG_EMULATED;
616
617 switch (ae->index) {
618 case 0:
619 strcpy(ae->name, AudioEslinear);
620 ae->encoding = AUDIO_ENCODING_SLINEAR;
621 ae->precision = 16;
622 ae->flags = 0;
623 return 0;
624 case 1:
625 strcpy(ae->name, AudioEslinear_be);
626 ae->encoding = AUDIO_ENCODING_SLINEAR_BE;
627 ae->precision = 16;
628 ae->flags = 0;
629 return 0;
630 case 2:
631 strcpy(ae->name, AudioEslinear_le);
632 ae->encoding = AUDIO_ENCODING_SLINEAR_LE;
633 ae->precision = 16;
634 if (sc->sc_flags & AWACS_CAP_BSWAP)
635 ae->flags = 0;
636 return 0;
637 case 3:
638 strcpy(ae->name, AudioEulinear_be);
639 ae->encoding = AUDIO_ENCODING_ULINEAR_BE;
640 ae->precision = 16;
641 return 0;
642 case 4:
643 strcpy(ae->name, AudioEulinear_le);
644 ae->encoding = AUDIO_ENCODING_ULINEAR_LE;
645 ae->precision = 16;
646 return 0;
647 case 5:
648 strcpy(ae->name, AudioEmulaw);
649 ae->encoding = AUDIO_ENCODING_ULAW;
650 ae->precision = 8;
651 return 0;
652 case 6:
653 strcpy(ae->name, AudioEalaw);
654 ae->encoding = AUDIO_ENCODING_ALAW;
655 ae->precision = 8;
656 return 0;
657 default:
658 return EINVAL;
659 }
660 }
661
662 static int
663 awacs_set_params(void *h, int setmode, int usemode,
664 audio_params_t *play, audio_params_t *rec,
665 stream_filter_list_t *pfil, stream_filter_list_t *rfil)
666 {
667 struct awacs_softc *sc;
668 audio_params_t *p;
669 stream_filter_list_t *fil;
670 int mode, i;
671
672 sc = h;
673 p = NULL;
674 /*
675 * This device only has one clock, so make the sample rates match.
676 */
677 if (play->sample_rate != rec->sample_rate &&
678 usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
679 if (setmode == AUMODE_PLAY) {
680 rec->sample_rate = play->sample_rate;
681 setmode |= AUMODE_RECORD;
682 } else if (setmode == AUMODE_RECORD) {
683 play->sample_rate = rec->sample_rate;
684 setmode |= AUMODE_PLAY;
685 } else
686 return EINVAL;
687 }
688
689 for (mode = AUMODE_RECORD; mode != -1;
690 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
691 if ((setmode & mode) == 0)
692 continue;
693
694 p = mode == AUMODE_PLAY ? play : rec;
695 fil = mode == AUMODE_PLAY ? pfil : rfil;
696 switch (p->sample_rate) {
697 case 48000: /* aurateconv */
698 case 44100:
699 case 29400:
700 case 22050:
701 case 17640:
702 case 14700:
703 case 11025:
704 case 8820:
705 case 8000: /* aurateconv */
706 case 7350:
707 break;
708 default:
709 return EINVAL;
710 }
711 awacs_write_reg(sc, AWACS_BYTE_SWAP, 0);
712 i = auconv_set_converter(sc->sc_formats, AWACS_NFORMATS,
713 mode, p, true, fil);
714 if (i < 0)
715 return EINVAL;
716 if (i == AWACS_FORMATS_LE)
717 awacs_write_reg(sc, AWACS_BYTE_SWAP, 1);
718 if (fil->req_size > 0)
719 p = &fil->filters[0].param;
720 if (awacs_set_rate(sc, p))
721 return EINVAL;
722 }
723 return 0;
724 }
725
726 static int
727 awacs_round_blocksize(void *h, int size, int mode, const audio_params_t *param)
728 {
729
730 if (size < PAGE_SIZE)
731 size = PAGE_SIZE;
732 return size & ~PGOFSET;
733 }
734
735 static int
736 awacs_halt_output(void *h)
737 {
738 struct awacs_softc *sc;
739
740 sc = h;
741 dbdma_stop(sc->sc_odma);
742 dbdma_reset(sc->sc_odma);
743 return 0;
744 }
745
746 static int
747 awacs_halt_input(void *h)
748 {
749 struct awacs_softc *sc;
750
751 sc = h;
752 dbdma_stop(sc->sc_idma);
753 dbdma_reset(sc->sc_idma);
754 return 0;
755 }
756
757 static int
758 awacs_getdev(void *h, struct audio_device *retp)
759 {
760
761 *retp = awacs_device;
762 return 0;
763 }
764
765 enum {
766 AWACS_MONITOR_CLASS,
767 AWACS_OUTPUT_CLASS,
768 AWACS_RECORD_CLASS,
769 AWACS_OUTPUT_SELECT,
770 AWACS_VOL_MASTER,
771 AWACS_INPUT_SELECT,
772 AWACS_VOL_INPUT,
773 AWACS_BASS,
774 AWACS_TREBLE,
775 AWACS_ENUM_LAST
776 };
777
778 static int
779 awacs_set_port(void *h, mixer_ctrl_t *mc)
780 {
781 struct awacs_softc *sc;
782 int l, r;
783
784 DPRINTF("awacs_set_port dev = %d, type = %d\n", mc->dev, mc->type);
785 sc = h;
786 l = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
787 r = mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
788
789 switch (mc->dev) {
790 case AWACS_OUTPUT_SELECT:
791 /* No change necessary? */
792 if (mc->un.mask == sc->sc_output_mask)
793 return 0;
794 awacs_select_output(sc, mc->un.mask);
795 return 0;
796
797 case AWACS_VOL_MASTER:
798 awacs_set_volume(sc, l, r);
799 return 0;
800
801 case AWACS_INPUT_SELECT:
802 /* no change necessary? */
803 if (mc->un.mask == sc->sc_record_source)
804 return 0;
805 switch (mc->un.mask) {
806 case 1 << 0: /* CD */
807 sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
808 sc->sc_codecctl0 |= AWACS_INPUT_CD;
809 awacs_write_codec(sc, sc->sc_codecctl0);
810 break;
811 case 1 << 1: /* microphone */
812 sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
813 sc->sc_codecctl0 |= AWACS_INPUT_MICROPHONE;
814 awacs_write_codec(sc, sc->sc_codecctl0);
815 break;
816 case 1 << 2: /* line in */
817 sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
818 sc->sc_codecctl0 |= AWACS_INPUT_LINE;
819 awacs_write_codec(sc, sc->sc_codecctl0);
820 break;
821 default: /* invalid argument */
822 return EINVAL;
823 }
824 sc->sc_record_source = mc->un.mask;
825 return 0;
826
827 case AWACS_VOL_INPUT:
828 sc->sc_codecctl0 &= ~0xff;
829 sc->sc_codecctl0 |= (l & 0xf0) | (r >> 4);
830 awacs_write_codec(sc, sc->sc_codecctl0);
831 return 0;
832
833 #if NSGSMIX > 0
834 case AWACS_BASS:
835 awacs_set_bass(sc, l);
836 return 0;
837
838 case AWACS_TREBLE:
839 awacs_set_treble(sc, l);
840 return 0;
841 #endif
842 }
843
844 return ENXIO;
845 }
846
847 static int
848 awacs_get_port(void *h, mixer_ctrl_t *mc)
849 {
850 struct awacs_softc *sc;
851 int l, r, vol;
852
853 sc = h;
854 switch (mc->dev) {
855 case AWACS_OUTPUT_SELECT:
856 mc->un.mask = sc->sc_output_mask;
857 return 0;
858
859 case AWACS_VOL_MASTER:
860 mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->vol_l;
861 mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->vol_r;
862 return 0;
863
864 case AWACS_INPUT_SELECT:
865 mc->un.mask = sc->sc_record_source;
866 return 0;
867
868 case AWACS_VOL_INPUT:
869 vol = sc->sc_codecctl0 & 0xff;
870 l = (vol & 0xf0);
871 r = (vol & 0x0f) << 4;
872 mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
873 mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
874 return 0;
875 #if NSGSMIX > 0
876 case AWACS_BASS:
877 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_bass;
878 return 0;
879
880 case AWACS_TREBLE:
881 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_treble;
882 return 0;
883 #endif
884
885 default:
886 return ENXIO;
887 }
888
889 return 0;
890 }
891
892 static int
893 awacs_query_devinfo(void *h, mixer_devinfo_t *dip)
894 {
895 #if NSGSMIX > 0
896 struct awacs_softc *sc = h;
897 #endif
898
899 switch (dip->index) {
900
901 case AWACS_OUTPUT_SELECT:
902 dip->mixer_class = AWACS_MONITOR_CLASS;
903 strcpy(dip->label.name, AudioNoutput);
904 dip->type = AUDIO_MIXER_SET;
905 dip->prev = dip->next = AUDIO_MIXER_LAST;
906 dip->un.s.num_mem = 2;
907 strcpy(dip->un.s.member[0].label.name, AudioNspeaker);
908 dip->un.s.member[0].mask = 1 << 0;
909 strcpy(dip->un.s.member[1].label.name, AudioNheadphone);
910 dip->un.s.member[1].mask = 1 << 1;
911 return 0;
912
913 case AWACS_VOL_MASTER:
914 dip->mixer_class = AWACS_MONITOR_CLASS;
915 strcpy(dip->label.name, AudioNmaster);
916 dip->type = AUDIO_MIXER_VALUE;
917 dip->prev = dip->next = AUDIO_MIXER_LAST;
918 dip->un.v.num_channels = 2;
919 strcpy(dip->un.v.units.name, AudioNvolume);
920 return 0;
921
922 #if NSGSMIX > 0
923 case AWACS_BASS:
924 if (sc->sc_sgsmix == NULL)
925 return ENXIO;
926 dip->mixer_class = AWACS_MONITOR_CLASS;
927 strcpy(dip->label.name, AudioNbass);
928 dip->type = AUDIO_MIXER_VALUE;
929 dip->prev = dip->next = AUDIO_MIXER_LAST;
930 dip->un.v.num_channels = 1;
931 strcpy(dip->un.v.units.name, AudioNbass);
932 return 0;
933
934 case AWACS_TREBLE:
935 if (sc->sc_sgsmix == NULL)
936 return ENXIO;
937 dip->mixer_class = AWACS_MONITOR_CLASS;
938 strcpy(dip->label.name, AudioNtreble);
939 dip->type = AUDIO_MIXER_VALUE;
940 dip->prev = dip->next = AUDIO_MIXER_LAST;
941 dip->un.v.num_channels = 1;
942 strcpy(dip->un.v.units.name, AudioNtreble);
943 return 0;
944 #endif
945
946 case AWACS_INPUT_SELECT:
947 dip->mixer_class = AWACS_RECORD_CLASS;
948 strcpy(dip->label.name, AudioNsource);
949 dip->type = AUDIO_MIXER_SET;
950 dip->prev = dip->next = AUDIO_MIXER_LAST;
951 dip->un.s.num_mem = 3;
952 strcpy(dip->un.s.member[0].label.name, AudioNcd);
953 dip->un.s.member[0].mask = 1 << 0;
954 strcpy(dip->un.s.member[1].label.name, AudioNmicrophone);
955 dip->un.s.member[1].mask = 1 << 1;
956 strcpy(dip->un.s.member[2].label.name, AudioNline);
957 dip->un.s.member[2].mask = 1 << 2;
958 return 0;
959
960 case AWACS_VOL_INPUT:
961 dip->mixer_class = AWACS_RECORD_CLASS;
962 strcpy(dip->label.name, AudioNrecord);
963 dip->type = AUDIO_MIXER_VALUE;
964 dip->prev = dip->next = AUDIO_MIXER_LAST;
965 dip->un.v.num_channels = 2;
966 strcpy(dip->un.v.units.name, AudioNvolume);
967 return 0;
968
969 case AWACS_MONITOR_CLASS:
970 dip->mixer_class = AWACS_MONITOR_CLASS;
971 strcpy(dip->label.name, AudioCmonitor);
972 dip->type = AUDIO_MIXER_CLASS;
973 dip->next = dip->prev = AUDIO_MIXER_LAST;
974 return 0;
975
976 case AWACS_OUTPUT_CLASS:
977 dip->mixer_class = AWACS_OUTPUT_CLASS;
978 strcpy(dip->label.name, AudioCoutputs);
979 dip->type = AUDIO_MIXER_CLASS;
980 dip->next = dip->prev = AUDIO_MIXER_LAST;
981 return 0;
982
983 case AWACS_RECORD_CLASS:
984 dip->mixer_class = AWACS_RECORD_CLASS;
985 strcpy(dip->label.name, AudioCrecord);
986 dip->type = AUDIO_MIXER_CLASS;
987 dip->next = dip->prev = AUDIO_MIXER_LAST;
988 return 0;
989 }
990
991 return ENXIO;
992 }
993
994 static size_t
995 awacs_round_buffersize(void *h, int dir, size_t size)
996 {
997
998 if (size > 65536)
999 size = 65536;
1000 return size;
1001 }
1002
1003 static paddr_t
1004 awacs_mappage(void *h, void *mem, off_t off, int prot)
1005 {
1006
1007 if (off < 0)
1008 return -1;
1009 return -1; /* XXX */
1010 }
1011
1012 static int
1013 awacs_get_props(void *h)
1014 {
1015 return AUDIO_PROP_FULLDUPLEX /* | AUDIO_PROP_MMAP */;
1016 }
1017
1018 static int
1019 awacs_trigger_output(void *h, void *start, void *end, int bsize,
1020 void (*intr)(void *), void *arg,
1021 const audio_params_t *param)
1022 {
1023 struct awacs_softc *sc;
1024 struct dbdma_command *cmd;
1025 vaddr_t va;
1026 int i, len, intmode;
1027
1028 DPRINTF("trigger_output %p %p 0x%x\n", start, end, bsize);
1029 sc = h;
1030 cmd = sc->sc_odmacmd;
1031 sc->sc_ointr = intr;
1032 sc->sc_oarg = arg;
1033 sc->sc_opages = ((char *)end - (char *)start) / PAGE_SIZE;
1034
1035 #ifdef DIAGNOSTIC
1036 if (sc->sc_opages > 16)
1037 panic("awacs_trigger_output");
1038 #endif
1039
1040 va = (vaddr_t)start;
1041 len = 0;
1042 for (i = sc->sc_opages; i > 0; i--) {
1043 len += PAGE_SIZE;
1044 if (len < bsize)
1045 intmode = DBDMA_INT_NEVER;
1046 else {
1047 len = 0;
1048 intmode = DBDMA_INT_ALWAYS;
1049 }
1050
1051 DBDMA_BUILD(cmd, DBDMA_CMD_OUT_MORE, 0, PAGE_SIZE, vtophys(va),
1052 intmode, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
1053 va += PAGE_SIZE;
1054 cmd++;
1055 }
1056
1057 DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
1058 DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
1059 dbdma_st32(&cmd->d_cmddep, vtophys((vaddr_t)sc->sc_odmacmd));
1060
1061 dbdma_start(sc->sc_odma, sc->sc_odmacmd);
1062
1063 return 0;
1064 }
1065
1066 static int
1067 awacs_trigger_input(void *h, void *start, void *end, int bsize,
1068 void (*intr)(void *), void *arg,
1069 const audio_params_t *param)
1070 {
1071
1072 DPRINTF("awacs_trigger_input called\n");
1073 return 1;
1074 }
1075
1076 static void
1077 awacs_select_output(struct awacs_softc *sc, int mask)
1078 {
1079
1080 #if NSGSMIX > 0
1081 if (sc->sc_sgsmix) {
1082 if (mask & OUTPUT_HEADPHONES) {
1083 /* mute speakers */
1084 sgsmix_set_speaker_vol(sc->sc_sgsmix, 0, 0);
1085 sgsmix_set_headphone_vol(sc->sc_sgsmix,
1086 sc->vol_l, sc->vol_r);
1087 }
1088 if (mask & OUTPUT_SPEAKER) {
1089 /* mute headphones */
1090 sgsmix_set_speaker_vol(sc->sc_sgsmix,
1091 sc->vol_l, sc->vol_r);
1092 sgsmix_set_headphone_vol(sc->sc_sgsmix, 0, 0);
1093 }
1094 } else {
1095 #endif
1096 sc->sc_codecctl1 |= AWACS_MUTE_SPEAKER | AWACS_MUTE_HEADPHONE;
1097 if ((sc->vol_l > 0) || (sc->vol_r > 0)) {
1098 if (mask & OUTPUT_SPEAKER)
1099 sc->sc_codecctl1 &= ~AWACS_MUTE_SPEAKER;
1100 if (mask & OUTPUT_HEADPHONES)
1101 sc->sc_codecctl1 &= ~AWACS_MUTE_HEADPHONE;
1102 }
1103 awacs_write_codec(sc, sc->sc_codecctl1);
1104 #if NSGSMIX > 0
1105 }
1106 #endif
1107 sc->sc_output_mask = mask;
1108 }
1109
1110 static void
1111 awacs_set_speaker_volume(struct awacs_softc *sc, int left, int right)
1112 {
1113
1114 #if NSGSMIX > 0
1115 if (sc->sc_sgsmix) {
1116 if (sc->sc_output_mask & OUTPUT_SPEAKER)
1117 sgsmix_set_speaker_vol(sc->sc_sgsmix, left, right);
1118 } else
1119 #endif
1120 {
1121 int lval;
1122 int rval;
1123 uint32_t codecctl = sc->sc_codecctl1;
1124
1125 lval = 15 - ((left & 0xf0) >> 4);
1126 rval = 15 - ((right & 0xf0) >> 4);
1127 DPRINTF("speaker_volume %d %d\n", lval, rval);
1128
1129 sc->sc_codecctl4 &= ~0x3cf;
1130 sc->sc_codecctl4 |= (lval << 6) | rval;
1131 awacs_write_codec(sc, sc->sc_codecctl4);
1132 if ((left == 0) && (right == 0)) {
1133 /*
1134 * max. attenuation doesn't mean silence so we need to
1135 * mute the output channel here
1136 */
1137 codecctl |= AWACS_MUTE_SPEAKER;
1138 } else if (sc->sc_output_mask & OUTPUT_SPEAKER) {
1139 codecctl &= ~AWACS_MUTE_SPEAKER;
1140 }
1141
1142 if (codecctl != sc->sc_codecctl1) {
1143
1144 sc->sc_codecctl1 = codecctl;
1145 awacs_write_codec(sc, sc->sc_codecctl1);
1146 }
1147 }
1148 }
1149
1150 static void
1151 awacs_set_ext_volume(struct awacs_softc *sc, int left, int right)
1152 {
1153
1154 #if NSGSMIX > 0
1155 if (sc->sc_sgsmix) {
1156 if (sc->sc_output_mask & OUTPUT_HEADPHONES)
1157 sgsmix_set_headphone_vol(sc->sc_sgsmix, left, right);
1158 } else
1159 #endif
1160 {
1161 int lval;
1162 int rval;
1163 uint32_t codecctl = sc->sc_codecctl1;
1164
1165 lval = 15 - ((left & 0xf0) >> 4);
1166 rval = 15 - ((right & 0xf0) >> 4);
1167 DPRINTF("ext_volume %d %d\n", lval, rval);
1168
1169 sc->sc_codecctl2 &= ~0x3cf;
1170 sc->sc_codecctl2 |= (lval << 6) | rval;
1171 awacs_write_codec(sc, sc->sc_codecctl2);
1172
1173 if ((left == 0) && (right == 0)) {
1174 /*
1175 * max. attenuation doesn't mean silence so we need to
1176 * mute the output channel here
1177 */
1178 codecctl |= AWACS_MUTE_HEADPHONE;
1179 } else if (sc->sc_output_mask & OUTPUT_HEADPHONES) {
1180
1181 codecctl &= ~AWACS_MUTE_HEADPHONE;
1182 }
1183
1184 if (codecctl != sc->sc_codecctl1) {
1185
1186 sc->sc_codecctl1 = codecctl;
1187 awacs_write_codec(sc, sc->sc_codecctl1);
1188 }
1189 }
1190 }
1191
1192 static void
1193 awacs_set_volume(struct awacs_softc *sc, int left, int right)
1194 {
1195
1196 awacs_set_ext_volume(sc, left, right);
1197 awacs_set_speaker_volume(sc, left, right);
1198
1199 sc->vol_l = left;
1200 sc->vol_r = right;
1201 }
1202
1203 #if NSGSMIX > 0
1204 static void
1205 awacs_set_bass(struct awacs_softc *sc, int bass)
1206 {
1207
1208 if (sc->sc_bass == bass)
1209 return;
1210
1211 sc->sc_bass = bass;
1212 if (sc->sc_sgsmix)
1213 sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass, sc->sc_treble);
1214 }
1215
1216 static void
1217 awacs_set_treble(struct awacs_softc *sc, int treble)
1218 {
1219
1220 if (sc->sc_treble == treble)
1221 return;
1222
1223 sc->sc_treble = treble;
1224 if (sc->sc_sgsmix)
1225 sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass, sc->sc_treble);
1226 }
1227 #endif
1228
1229 void
1230 awacs_set_loopthrough_volume(struct awacs_softc *sc, int left, int right)
1231 {
1232 int lval;
1233 int rval;
1234
1235 lval = 15 - ((left & 0xff) >> 4);
1236 rval = 15 - ((right & 0xff) >> 4);
1237 DPRINTF("loopthrough_volume %d %d\n", lval, rval);
1238
1239 sc->sc_codecctl5 &= ~0x3cf;
1240 sc->sc_codecctl5 |= (lval << 6) | rval;
1241 awacs_write_codec(sc, sc->sc_codecctl5);
1242 }
1243
1244 int
1245 awacs_set_rate(struct awacs_softc *sc, const audio_params_t *p)
1246 {
1247 int c;
1248
1249 switch (p->sample_rate) {
1250 case 44100:
1251 c = AWACS_RATE_44100;
1252 break;
1253 case 29400:
1254 c = AWACS_RATE_29400;
1255 break;
1256 case 22050:
1257 c = AWACS_RATE_22050;
1258 break;
1259 case 17640:
1260 c = AWACS_RATE_17640;
1261 break;
1262 case 14700:
1263 c = AWACS_RATE_14700;
1264 break;
1265 case 11025:
1266 c = AWACS_RATE_11025;
1267 break;
1268 case 8820:
1269 c = AWACS_RATE_8820;
1270 break;
1271 case 7350:
1272 c = AWACS_RATE_7350;
1273 break;
1274 default:
1275 return -1;
1276 }
1277
1278 sc->sc_soundctl &= ~AWACS_RATE_MASK;
1279 sc->sc_soundctl |= c;
1280 awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
1281
1282 return 0;
1283 }
1284
1285 static int
1286 awacs_check_headphones(struct awacs_softc *sc)
1287 {
1288 uint32_t reg;
1289 reg = awacs_read_reg(sc, AWACS_CODEC_STATUS);
1290 DPRINTF("%s: codec status reg %08x\n", sc->sc_dev.dv_xname, reg);
1291 return ((reg & sc->sc_headphones_mask) == sc->sc_headphones_in);
1292 }
1293
1294 static int
1295 awacs_status_intr(void *cookie)
1296 {
1297 struct awacs_softc *sc = cookie;
1298 int mask;
1299
1300 mask = awacs_check_headphones(sc) ? OUTPUT_HEADPHONES : OUTPUT_SPEAKER;
1301 if (mask != sc->sc_output_mask) {
1302
1303 sc->sc_output_wanted = mask;
1304 wakeup(&sc->sc_event);
1305 }
1306 /* clear the interrupt */
1307 awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl | AWACS_PORTCHG);
1308 return 1;
1309 }
1310
1311 static void
1312 awacs_thread(void *cookie)
1313 {
1314 struct awacs_softc *sc = cookie;
1315
1316 while (1) {
1317 tsleep(&sc->sc_event, PWAIT, "awacs_wait", hz);
1318 if (sc->sc_output_wanted == sc->sc_output_mask)
1319 continue;
1320
1321 awacs_select_output(sc, sc->sc_output_wanted);
1322 DPRINTF("%s: switching to %s\n", sc->sc_dev.dv_xname,
1323 (sc->sc_output_wanted & OUTPUT_SPEAKER) ?
1324 "speaker" : "headphones");
1325 }
1326 }
1327