xref: /netbsd-src/sys/dev/pci/gcscaudio.c (revision 1897181a7231d5fc7ab48994d1447fcbc4e13a49)
1 /*	$NetBSD: gcscaudio.c,v 1.11 2011/11/25 12:50:32 jmcneill Exp $	*/
2 
3 /*-
4  * Copyright (c) 2008 SHIMIZU Ryo <ryo@nerv.org>
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  *
16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: gcscaudio.c,v 1.11 2011/11/25 12:50:32 jmcneill Exp $");
31 
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kmem.h>
35 #include <sys/device.h>
36 #include <sys/queue.h>
37 
38 #include <dev/pci/pcidevs.h>
39 #include <dev/pci/pcivar.h>
40 
41 #include <sys/audioio.h>
42 #include <dev/audio_if.h>
43 #include <dev/mulaw.h>
44 #include <dev/auconv.h>
45 #include <dev/ic/ac97reg.h>
46 #include <dev/ic/ac97var.h>
47 
48 #include <dev/pci/gcscaudioreg.h>
49 
50 
51 #define	GCSCAUDIO_NPRDTABLE	256	/* including a JMP-PRD for loop */
52 #define	GCSCAUDIO_PRD_SIZE_MAX	65532	/* limited by CS5536 Controller */
53 #define	GCSCAUDIO_BUFSIZE_MAX	(GCSCAUDIO_PRD_SIZE_MAX * (GCSCAUDIO_NPRDTABLE - 1))
54 
55 struct gcscaudio_prd {
56 	/* PRD table for play/rec */
57 	struct gcscaudio_prdtables {
58 #define	PRD_TABLE_FRONT		0
59 #define	PRD_TABLE_SURR		1
60 #define	PRD_TABLE_CENTER	2
61 #define	PRD_TABLE_LFE		3
62 #define	PRD_TABLE_REC		4
63 #define	PRD_TABLE_MAX		5
64 		struct acc_prd prdtbl[PRD_TABLE_MAX][GCSCAUDIO_NPRDTABLE];
65 	} *p_prdtables;
66 	bus_dmamap_t p_prdmap;
67 	bus_dma_segment_t p_prdsegs[1];
68 	int p_prdnseg;
69 };
70 
71 struct gcscaudio_dma {
72 	LIST_ENTRY(gcscaudio_dma) list;
73 	bus_dmamap_t map;
74 	void *addr;
75 	size_t size;
76 	bus_dma_segment_t segs[1];
77 	int nseg;
78 };
79 
80 struct gcscaudio_softc_ch {
81 	void (*ch_intr)(void *);
82 	void *ch_intr_arg;
83 	struct audio_params ch_params;
84 };
85 
86 struct gcscaudio_softc {
87 	struct device sc_dev;
88 	kmutex_t sc_lock;
89 	kmutex_t sc_intr_lock;
90 	pci_chipset_tag_t sc_pc;
91 	pcitag_t sc_pt;
92 	void *sc_ih;
93 	bus_space_tag_t sc_iot;
94 	bus_space_handle_t sc_ioh;
95 	bus_size_t sc_ios;
96 	bus_dma_tag_t sc_dmat;
97 
98 	/* allocated DMA buffer list */
99 	LIST_HEAD(, gcscaudio_dma) sc_dmalist;
100 
101 #define GCSCAUDIO_MAXFORMATS	4
102 	struct audio_format sc_formats[GCSCAUDIO_MAXFORMATS];
103 	int sc_nformats;
104 	struct audio_encoding_set *sc_encodings;
105 
106 	/* AC97 codec */
107 	struct ac97_host_if host_if;
108 	struct ac97_codec_if *codec_if;
109 
110 	/* input, output channels */
111 	struct gcscaudio_softc_ch sc_play;
112 	struct gcscaudio_softc_ch sc_rec;
113 	struct gcscaudio_prd sc_prd;
114 
115 	/* multi channel splitter work; {4,6}ch stream to {2,4} DMA buffers */
116 	void *sc_mch_split_buf;
117 	void *sc_mch_split_start;
118 	int sc_mch_split_off;
119 	int sc_mch_split_size;
120 	int sc_mch_split_blksize;
121 	void (*sc_mch_splitter)(void *, void *, int, int);
122 	bool sc_spdif;
123 };
124 
125 /* for cfattach */
126 static int gcscaudio_match(device_t, cfdata_t, void *);
127 static void gcscaudio_attach(device_t, device_t, void *);
128 
129 /* for audio_hw_if */
130 static int gcscaudio_open(void *, int);
131 static void gcscaudio_close(void *);
132 static int gcscaudio_query_encoding(void *, struct audio_encoding *);
133 static int gcscaudio_set_params(void *, int, int, audio_params_t *,
134                                 audio_params_t *, stream_filter_list_t *,
135                                 stream_filter_list_t *);
136 static int gcscaudio_round_blocksize(void *, int, int, const audio_params_t *);
137 static int gcscaudio_halt_output(void *);
138 static int gcscaudio_halt_input(void *);
139 static int gcscaudio_getdev(void *, struct audio_device *);
140 static int gcscaudio_set_port(void *, mixer_ctrl_t *);
141 static int gcscaudio_get_port(void *, mixer_ctrl_t *);
142 static int gcscaudio_query_devinfo(void *, mixer_devinfo_t *);
143 static void *gcscaudio_malloc(void *, int, size_t);
144 static void gcscaudio_free(void *, void *, size_t);
145 static size_t gcscaudio_round_buffersize(void *, int, size_t);
146 static paddr_t gcscaudio_mappage(void *, void *, off_t, int);
147 static int gcscaudio_get_props(void *);
148 static int gcscaudio_trigger_output(void *, void *, void *, int,
149                                     void (*)(void *), void *,
150                                     const audio_params_t *);
151 static int gcscaudio_trigger_input(void *, void *, void *, int,
152                                    void (*)(void *), void *,
153                                    const audio_params_t *);
154 static void gcscaudio_get_locks(void *, kmutex_t **, kmutex_t **);
155 static bool gcscaudio_resume(device_t, const pmf_qual_t *);
156 static int gcscaudio_intr(void *);
157 
158 /* for codec_if */
159 static int gcscaudio_attach_codec(void *, struct ac97_codec_if *);
160 static int gcscaudio_write_codec(void *, uint8_t, uint16_t);
161 static int gcscaudio_read_codec(void *, uint8_t, uint16_t *);
162 static int gcscaudio_reset_codec(void *);
163 static void gcscaudio_spdif_event_codec(void *, bool);
164 
165 /* misc */
166 static int gcscaudio_append_formats(struct gcscaudio_softc *,
167                                     const struct audio_format *);
168 static int gcscaudio_wait_ready_codec(struct gcscaudio_softc *sc, const char *);
169 static int gcscaudio_set_params_ch(struct gcscaudio_softc *,
170                                    struct gcscaudio_softc_ch *, int,
171                                    audio_params_t *, stream_filter_list_t *);
172 static int gcscaudio_allocate_dma(struct gcscaudio_softc *, size_t, void **,
173                                   bus_dma_segment_t *, int, int *,
174                                   bus_dmamap_t *);
175 
176 
177 CFATTACH_DECL(gcscaudio, sizeof (struct gcscaudio_softc),
178     gcscaudio_match, gcscaudio_attach, NULL, NULL);
179 
180 
181 static struct audio_device gcscaudio_device = {
182 	"AMD Geode CS5536",
183 	"",
184 	"gcscaudio"
185 };
186 
187 static const struct audio_hw_if gcscaudio_hw_if = {
188 	.open			= gcscaudio_open,
189 	.close			= gcscaudio_close,
190 	.drain			= NULL,
191 	.query_encoding		= gcscaudio_query_encoding,
192 	.set_params		= gcscaudio_set_params,
193 	.round_blocksize	= gcscaudio_round_blocksize,
194 	.commit_settings	= NULL,
195 	.init_output		= NULL,
196 	.init_input		= NULL,
197 	.start_output		= NULL,
198 	.start_input		= NULL,
199 	.halt_output		= gcscaudio_halt_output,
200 	.halt_input		= gcscaudio_halt_input,
201 	.speaker_ctl		= NULL,
202 	.getdev			= gcscaudio_getdev,
203 	.setfd			= NULL,
204 	.set_port		= gcscaudio_set_port,
205 	.get_port		= gcscaudio_get_port,
206 	.query_devinfo		= gcscaudio_query_devinfo,
207 	.allocm			= gcscaudio_malloc,
208 	.freem			= gcscaudio_free,
209 	.round_buffersize	= gcscaudio_round_buffersize,
210 	.mappage		= gcscaudio_mappage,
211 	.get_props		= gcscaudio_get_props,
212 	.trigger_output		= gcscaudio_trigger_output,
213 	.trigger_input		= gcscaudio_trigger_input,
214 	.dev_ioctl		= NULL,
215 	.get_locks		= gcscaudio_get_locks,
216 };
217 
218 static const struct audio_format gcscaudio_formats_2ch = {
219 	NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
220 	2, AUFMT_STEREO, 0, {8000, 48000}
221 };
222 
223 static const struct audio_format gcscaudio_formats_4ch = {
224 	NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
225 	4, AUFMT_SURROUND4, 0, {8000, 48000}
226 };
227 
228 static const struct audio_format gcscaudio_formats_6ch = {
229 	NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
230 	6, AUFMT_DOLBY_5_1, 0, {8000, 48000}
231 };
232 
233 static int
234 gcscaudio_match(device_t parent, cfdata_t match, void *aux)
235 {
236 	struct pci_attach_args *pa;
237 
238 	pa = (struct pci_attach_args *)aux;
239 	if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_AMD) &&
240 	    (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_AMD_CS5536_AUDIO))
241 		return 1;
242 
243 	return 0;
244 }
245 
246 static int
247 gcscaudio_append_formats(struct gcscaudio_softc *sc,
248                          const struct audio_format *format)
249 {
250 	if (sc->sc_nformats >= GCSCAUDIO_MAXFORMATS) {
251 		aprint_error_dev(&sc->sc_dev, "too many formats\n");
252 		return EINVAL;
253 	}
254 	sc->sc_formats[sc->sc_nformats++] = *format;
255 	return 0;
256 }
257 
258 static void
259 gcscaudio_attach(device_t parent, device_t self, void *aux)
260 {
261 	struct gcscaudio_softc *sc;
262 	struct pci_attach_args *pa;
263 	const char *intrstr;
264 	pci_intr_handle_t ih;
265 	int rc, i;
266 
267 	sc = device_private(self);
268 
269 	aprint_naive(": Audio controller\n");
270 
271 	pa = aux;
272 	sc->sc_pc = pa->pa_pc;
273 	sc->sc_pt = pa->pa_tag;
274 	sc->sc_dmat = pa->pa_dmat;
275 	LIST_INIT(&sc->sc_dmalist);
276 	sc->sc_mch_split_buf = NULL;
277 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
278 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
279 
280 	aprint_normal(": AMD Geode CS5536 Audio\n");
281 
282 	if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
283 	    &sc->sc_iot, &sc->sc_ioh, NULL, &sc->sc_ios)) {
284 		aprint_error_dev(&sc->sc_dev, "can't map i/o space\n");
285 		return;
286 	}
287 
288 	if (pci_intr_map(pa, &ih)) {
289 		aprint_error_dev(&sc->sc_dev, "couldn't map interrupt\n");
290 		goto attach_failure_unmap;
291 	}
292 	intrstr = pci_intr_string(sc->sc_pc, ih);
293 
294 	sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_AUDIO,
295 	    gcscaudio_intr, sc);
296 	if (sc->sc_ih == NULL) {
297 		aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt");
298 		if (intrstr != NULL)
299 			aprint_error(" at %s", intrstr);
300 		aprint_error("\n");
301 		goto attach_failure_unmap;
302 	}
303 
304 	aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr);
305 
306 
307 	if (gcscaudio_allocate_dma(sc, sizeof(*sc->sc_prd.p_prdtables),
308 	    (void **)&(sc->sc_prd.p_prdtables), sc->sc_prd.p_prdsegs, 1,
309 	    &(sc->sc_prd.p_prdnseg), &(sc->sc_prd.p_prdmap)) != 0)
310 		goto attach_failure_intr;
311 
312 	sc->host_if.arg = sc;
313 	sc->host_if.attach = gcscaudio_attach_codec;
314 	sc->host_if.read = gcscaudio_read_codec;
315 	sc->host_if.write = gcscaudio_write_codec;
316 	sc->host_if.reset = gcscaudio_reset_codec;
317 	sc->host_if.spdif_event = gcscaudio_spdif_event_codec;
318 
319 	if ((rc = ac97_attach(&sc->host_if, self, &sc->sc_lock)) != 0) {
320 		aprint_error_dev(&sc->sc_dev,
321 		    "can't attach codec (error=%d)\n", rc);
322 		goto attach_failure_intr;
323 	}
324 
325 	if (!pmf_device_register(self, NULL, gcscaudio_resume))
326 		aprint_error_dev(self, "couldn't establish power handler\n");
327 
328 
329 	sc->sc_nformats = 0;
330 	gcscaudio_append_formats(sc, &gcscaudio_formats_2ch);
331 
332 	mutex_enter(&sc->sc_lock);
333 	if (AC97_IS_4CH(sc->codec_if))
334 		gcscaudio_append_formats(sc, &gcscaudio_formats_4ch);
335 	if (AC97_IS_6CH(sc->codec_if))
336 		gcscaudio_append_formats(sc, &gcscaudio_formats_6ch);
337 	if (AC97_IS_FIXED_RATE(sc->codec_if)) {
338 		for (i = 0; i < sc->sc_nformats; i++) {
339 			sc->sc_formats[i].frequency_type = 1;
340 			sc->sc_formats[i].frequency[0] = 48000;
341 		}
342 	}
343 	mutex_exit(&sc->sc_lock);
344 
345 	if ((rc = auconv_create_encodings(sc->sc_formats, sc->sc_nformats,
346 	    &sc->sc_encodings)) != 0) {
347 		aprint_error_dev(self,
348 		    "auconv_create_encoding: error=%d\n", rc);
349 		goto attach_failure_codec;
350 	}
351 
352 	audio_attach_mi(&gcscaudio_hw_if, sc, &sc->sc_dev);
353 	return;
354 
355 attach_failure_codec:
356 	sc->codec_if->vtbl->detach(sc->codec_if);
357 attach_failure_intr:
358 	pci_intr_disestablish(sc->sc_pc, sc->sc_ih);
359 attach_failure_unmap:
360 	bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
361 	return;
362 }
363 
364 static int
365 gcscaudio_attach_codec(void *arg, struct ac97_codec_if *codec_if)
366 {
367 	struct gcscaudio_softc *sc;
368 
369 	sc = (struct gcscaudio_softc *)arg;
370 	sc->codec_if = codec_if;
371 	return 0;
372 }
373 
374 static int
375 gcscaudio_reset_codec(void *arg)
376 {
377 	struct gcscaudio_softc *sc;
378 	sc = (struct gcscaudio_softc *)arg;
379 
380 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_CODEC_CNTL,
381 	    ACC_CODEC_CNTL_LNK_WRM_RST |
382 	    ACC_CODEC_CNTL_CMD_NEW);
383 
384 	if (gcscaudio_wait_ready_codec(sc, "reset timeout\n"))
385 		return 1;
386 
387 	return 0;
388 }
389 
390 static void
391 gcscaudio_spdif_event_codec(void *arg, bool flag)
392 {
393 	struct gcscaudio_softc *sc;
394 
395 	sc = (struct gcscaudio_softc *)arg;
396 	sc->sc_spdif = flag;
397 }
398 
399 static int
400 gcscaudio_wait_ready_codec(struct gcscaudio_softc *sc, const char *timeout_msg)
401 {
402 	int i;
403 
404 #define GCSCAUDIO_WAIT_READY_CODEC_TIMEOUT	500
405 	for (i = GCSCAUDIO_WAIT_READY_CODEC_TIMEOUT; (i >= 0) &&
406 	    (bus_space_read_4(sc->sc_iot, sc->sc_ioh, ACC_CODEC_CNTL) &
407 	    ACC_CODEC_CNTL_CMD_NEW); i--)
408 		delay(1);
409 
410 	if (i < 0) {
411 		aprint_error_dev(&sc->sc_dev, "%s", timeout_msg);
412 		return 1;
413 	}
414 
415 	return 0;
416 }
417 
418 static int
419 gcscaudio_write_codec(void *arg, uint8_t reg, uint16_t val)
420 {
421 	struct gcscaudio_softc *sc;
422 
423 	sc = (struct gcscaudio_softc *)arg;
424 
425 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_CODEC_CNTL,
426 	    ACC_CODEC_CNTL_WRITE_CMD |
427 	    ACC_CODEC_CNTL_CMD_NEW |
428 	    ACC_CODEC_REG2ADDR(reg) |
429 	    (val & ACC_CODEC_CNTL_CMD_DATA_MASK));
430 
431 	if (gcscaudio_wait_ready_codec(sc, "codec write timeout\n"))
432 		return 1;
433 
434 #ifdef GCSCAUDIO_CODEC_DEBUG
435 	aprint_error_dev(&sc->sc_dev, "codec write: reg=0x%02x, val=0x%04x\n",
436 	    reg, val);
437 #endif
438 
439 	return 0;
440 }
441 
442 static int
443 gcscaudio_read_codec(void *arg, uint8_t reg, uint16_t *val)
444 {
445 	struct gcscaudio_softc *sc;
446 	uint32_t v;
447 	int i;
448 
449 	sc = (struct gcscaudio_softc *)arg;
450 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_CODEC_CNTL,
451 	    ACC_CODEC_CNTL_READ_CMD | ACC_CODEC_CNTL_CMD_NEW |
452 	    ACC_CODEC_REG2ADDR(reg));
453 
454 	if (gcscaudio_wait_ready_codec(sc, "codec write timeout for reading"))
455 		return 1;
456 
457 #define GCSCAUDIO_READ_CODEC_TIMEOUT	50
458 	for (i = GCSCAUDIO_READ_CODEC_TIMEOUT; i >= 0; i--) {
459 		v = bus_space_read_4(sc->sc_iot, sc->sc_ioh, ACC_CODEC_STATUS);
460 		if ((v & ACC_CODEC_STATUS_STS_NEW) &&
461 		    (ACC_CODEC_ADDR2REG(v) == reg))
462 			break;
463 
464 		delay(10);
465 	}
466 
467 	if (i < 0) {
468 		aprint_error_dev(&sc->sc_dev, "codec read timeout\n");
469 		return 1;
470 	}
471 
472 #ifdef GCSCAUDIO_CODEC_DEBUG
473 	aprint_error_dev(&sc->sc_dev, "codec read: reg=0x%02x, val=0x%04x\n",
474 	    reg, v & ACC_CODEC_STATUS_STS_DATA_MASK);
475 #endif
476 
477 	*val = v;
478 	return 0;
479 }
480 
481 static int
482 gcscaudio_open(void *arg, int flags)
483 {
484 	struct gcscaudio_softc *sc;
485 
486 	sc = (struct gcscaudio_softc *)arg;
487 	sc->codec_if->vtbl->lock(sc->codec_if);
488 	return 0;
489 }
490 
491 static void
492 gcscaudio_close(void *arg)
493 {
494 	struct gcscaudio_softc *sc;
495 
496 	sc = (struct gcscaudio_softc *)arg;
497 	sc->codec_if->vtbl->unlock(sc->codec_if);
498 }
499 
500 static int
501 gcscaudio_query_encoding(void *arg, struct audio_encoding *fp)
502 {
503 	struct gcscaudio_softc *sc;
504 
505 	sc = (struct gcscaudio_softc *)arg;
506 	return auconv_query_encoding(sc->sc_encodings, fp);
507 }
508 
509 static int
510 gcscaudio_set_params_ch(struct gcscaudio_softc *sc,
511                         struct gcscaudio_softc_ch *ch, int mode,
512                         audio_params_t *p, stream_filter_list_t *fil)
513 {
514 	int error, idx;
515 
516 	if ((p->sample_rate < 8000) || (p->sample_rate > 48000))
517 		return EINVAL;
518 
519 	if (p->precision != 8 && p->precision != 16)
520 		return EINVAL;
521 
522 	if ((idx = auconv_set_converter(sc->sc_formats, sc->sc_nformats,
523 	    mode, p, TRUE, fil)) < 0)
524 		return EINVAL;
525 
526 	if (fil->req_size > 0)
527 		p = &fil->filters[0].param;
528 
529 	if (mode == AUMODE_PLAY) {
530 		if (!AC97_IS_FIXED_RATE(sc->codec_if)) {
531 			/* setup rate of DAC/ADC */
532 			if ((error = sc->codec_if->vtbl->set_rate(sc->codec_if,
533 			    AC97_REG_PCM_LR_ADC_RATE, &p->sample_rate)) != 0)
534 				return error;
535 
536 			/* additional rate of DAC for Surround */
537 			if ((p->channels >= 4) &&
538 			    (error = sc->codec_if->vtbl->set_rate(sc->codec_if,
539 			    AC97_REG_PCM_SURR_DAC_RATE, &p->sample_rate)) != 0)
540 				return error;
541 
542 			/* additional rate of DAC for LowFrequencyEffect */
543 			if ((p->channels == 6) &&
544 			    (error = sc->codec_if->vtbl->set_rate(sc->codec_if,
545 			    AC97_REG_PCM_LFE_DAC_RATE, &p->sample_rate)) != 0)
546 				return error;
547 		}
548 	}
549 
550 	if (mode == AUMODE_RECORD) {
551 		if (!AC97_IS_FIXED_RATE(sc->codec_if)) {
552 			/* setup rate of DAC/ADC */
553 			if ((error = sc->codec_if->vtbl->set_rate(sc->codec_if,
554 			    AC97_REG_PCM_FRONT_DAC_RATE, &p->sample_rate)) != 0)
555 				return error;
556 		}
557 	}
558 
559 	ch->ch_params = *p;
560 	return 0;
561 }
562 
563 static int
564 gcscaudio_set_params(void *arg, int setmode, int usemode,
565                      audio_params_t *play, audio_params_t *rec,
566                      stream_filter_list_t *pfil, stream_filter_list_t *rfil)
567 {
568 	struct gcscaudio_softc *sc;
569 	int error;
570 
571 	sc = (struct gcscaudio_softc *)arg;
572 
573 	if (setmode & AUMODE_PLAY) {
574 		if ((error = gcscaudio_set_params_ch(sc, &sc->sc_play,
575 		    AUMODE_PLAY, play, pfil)) != 0)
576 			return error;
577 	}
578 	if (setmode & AUMODE_RECORD) {
579 		if ((error = gcscaudio_set_params_ch(sc, &sc->sc_rec,
580 		    AUMODE_RECORD, rec, rfil)) != 0)
581 			return error;
582 	}
583 
584 	return 0;
585 }
586 
587 static int
588 gcscaudio_round_blocksize(void *arg, int blk, int mode,
589                           const audio_params_t *param)
590 {
591 	blk &= -4;
592 	if (blk > GCSCAUDIO_PRD_SIZE_MAX)
593 		blk = GCSCAUDIO_PRD_SIZE_MAX;
594 
595 	return blk;
596 }
597 
598 static int
599 gcscaudio_halt_output(void *arg)
600 {
601 	struct gcscaudio_softc *sc;
602 
603 	sc = (struct gcscaudio_softc *)arg;
604 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM0_CMD,
605 	    ACC_BMx_CMD_BM_CTL_DISABLE);
606 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM4_CMD,
607 	    ACC_BMx_CMD_BM_CTL_DISABLE);
608 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM6_CMD,
609 	    ACC_BMx_CMD_BM_CTL_DISABLE);
610 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM7_CMD,
611 	    ACC_BMx_CMD_BM_CTL_DISABLE);
612 	sc->sc_play.ch_intr = NULL;
613 
614 	/* channel splitter */
615 	sc->sc_mch_splitter = NULL;
616 	if (sc->sc_mch_split_buf)
617 		gcscaudio_free(sc, sc->sc_mch_split_buf, sc->sc_mch_split_size);
618 	sc->sc_mch_split_buf = NULL;
619 
620 	return 0;
621 }
622 
623 static int
624 gcscaudio_halt_input(void *arg)
625 {
626 	struct gcscaudio_softc *sc;
627 
628 	sc = (struct gcscaudio_softc *)arg;
629 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM1_CMD,
630 	    ACC_BMx_CMD_BM_CTL_DISABLE);
631 	sc->sc_rec.ch_intr = NULL;
632 	return 0;
633 }
634 
635 static int
636 gcscaudio_getdev(void *addr, struct audio_device *retp)
637 {
638 	*retp = gcscaudio_device;
639 	return 0;
640 }
641 
642 static int
643 gcscaudio_set_port(void *addr, mixer_ctrl_t *cp)
644 {
645 	struct gcscaudio_softc *sc;
646 
647 	sc = addr;
648 	return sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp);
649 }
650 
651 static int
652 gcscaudio_get_port(void *addr, mixer_ctrl_t *cp)
653 {
654 	struct gcscaudio_softc *sc;
655 
656 	sc = addr;
657 	return sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp);
658 }
659 
660 static int
661 gcscaudio_query_devinfo(void *addr, mixer_devinfo_t *dip)
662 {
663 	struct gcscaudio_softc *sc;
664 
665 	sc = addr;
666 	return sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip);
667 }
668 
669 static void *
670 gcscaudio_malloc(void *arg, int direction, size_t size)
671 {
672 	struct gcscaudio_softc *sc;
673 	struct gcscaudio_dma *p;
674 	int error;
675 
676 	sc = (struct gcscaudio_softc *)arg;
677 
678 	p = kmem_alloc(sizeof(*p), KM_SLEEP);
679 	if (p == NULL)
680 		return NULL;
681 	p->size = size;
682 
683 	error = gcscaudio_allocate_dma(sc, size, &p->addr,
684 	    p->segs, sizeof(p->segs)/sizeof(p->segs[0]), &p->nseg, &p->map);
685 	if (error) {
686 		kmem_free(p, sizeof(*p));
687 		return NULL;
688 	}
689 
690 	LIST_INSERT_HEAD(&sc->sc_dmalist, p, list);
691 	return p->addr;
692 }
693 
694 static void
695 gcscaudio_free(void *arg, void *ptr, size_t size)
696 {
697 	struct gcscaudio_softc *sc;
698 	struct gcscaudio_dma *p;
699 
700 	sc = (struct gcscaudio_softc *)arg;
701 
702 	LIST_FOREACH(p, &sc->sc_dmalist, list) {
703 		if (p->addr == ptr) {
704 			bus_dmamap_unload(sc->sc_dmat, p->map);
705 			bus_dmamap_destroy(sc->sc_dmat, p->map);
706 			bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
707 			bus_dmamem_free(sc->sc_dmat, p->segs, p->nseg);
708 
709 			LIST_REMOVE(p, list);
710 			kmem_free(p, sizeof(*p));
711 			break;
712 		}
713 	}
714 }
715 
716 static paddr_t
717 gcscaudio_mappage(void *arg, void *mem, off_t off, int prot)
718 {
719 	struct gcscaudio_softc *sc;
720 	struct gcscaudio_dma *p;
721 
722 	if (off < 0)
723 		return -1;
724 
725 	sc = (struct gcscaudio_softc *)arg;
726 	LIST_FOREACH(p, &sc->sc_dmalist, list) {
727 		if (p->addr == mem) {
728 			return bus_dmamem_mmap(sc->sc_dmat, p->segs, p->nseg,
729 			    off, prot, BUS_DMA_WAITOK);
730 		}
731 	}
732 
733 	return -1;
734 }
735 
736 static size_t
737 gcscaudio_round_buffersize(void *addr, int direction, size_t size)
738 {
739 	if (size > GCSCAUDIO_BUFSIZE_MAX)
740 		size = GCSCAUDIO_BUFSIZE_MAX;
741 
742 	return size;
743 }
744 
745 static int
746 gcscaudio_get_props(void *addr)
747 {
748 	struct gcscaudio_softc *sc;
749 	int props;
750 
751 	sc = (struct gcscaudio_softc *)addr;
752 	props = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
753 	/*
754 	 * Even if the codec is fixed-rate, set_param() succeeds for any sample
755 	 * rate because of aurateconv.  Applications can't know what rate the
756 	 * device can process in the case of mmap().
757 	 */
758 	if (!AC97_IS_FIXED_RATE(sc->codec_if))
759 		props |= AUDIO_PROP_MMAP;
760 	return props;
761 }
762 
763 static int
764 build_prdtables(struct gcscaudio_softc *sc, int prdidx,
765                 void *addr, size_t size, int blksize, int blklen, int blkoff)
766 {
767 	struct gcscaudio_dma *p;
768 	struct acc_prd *prdp;
769 	bus_addr_t paddr;
770 	int i;
771 
772 	/* get physical address of start */
773 	paddr = (bus_addr_t)0;
774 	LIST_FOREACH(p, &sc->sc_dmalist, list) {
775 		if (p->addr == addr) {
776 			paddr = p->map->dm_segs[0].ds_addr;
777 			break;
778 		}
779 	}
780 	if (!paddr) {
781 		aprint_error_dev(&sc->sc_dev,
782 		    "bad addr %p\n", addr);
783 		return EINVAL;
784 	}
785 
786 #define PRDADDR(prdidx,idx) \
787 	(sc->sc_prd.p_prdmap->dm_segs[0].ds_addr) + sizeof(struct acc_prd) * \
788 	(((prdidx) * GCSCAUDIO_NPRDTABLE) + (idx))
789 
790 	/*
791 	 * build PRD table
792 	 *   prdtbl[] = <PRD0>, <PRD1>, <PRD2>, ..., <PRDn>, <jmp to PRD0>
793 	 */
794 	prdp = sc->sc_prd.p_prdtables->prdtbl[prdidx];
795 	for (i = 0; size > 0; size -= blksize, i++) {
796 		prdp[i].address = paddr + blksize * i + blkoff;
797 		prdp[i].ctrlsize =
798 		    (size < blklen ? size : blklen) | ACC_BMx_PRD_CTRL_EOP;
799 	}
800 	prdp[i].address = PRDADDR(prdidx, 0);
801 	prdp[i].ctrlsize = ACC_BMx_PRD_CTRL_JMP;
802 
803 	bus_dmamap_sync(sc->sc_dmat, sc->sc_prd.p_prdmap, 0,
804 	    sizeof(struct acc_prd) * i, BUS_DMASYNC_PREWRITE);
805 
806 	return 0;
807 }
808 
809 static void
810 split_buffer_4ch(void *dst, void *src, int size, int blksize)
811 {
812 	int left, i;
813 	uint16_t *s, *d;
814 
815 	/*
816 	 * src[blk0]: L,R,SL,SR,L,R,SL,SR,L,R,SL,SR,....
817 	 * src[blk1]: L,R,SL,SR,L,R,SL,SR,L,R,SL,SR,....
818 	 * src[blk2]: L,R,SL,SR,L,R,SL,SR,L,R,SL,SR,....
819 	 *     :
820 	 *
821 	 *   rearrange to
822 	 *
823 	 * src[blk0]: L,R,L,R,L,R,L,R,..
824 	 * src[blk1]: L,R,L,R,L,R,L,R,..
825 	 * src[blk2]: L,R,L,R,L,R,L,R,..
826 	 *     :
827 	 * dst[blk0]: SL,SR,SL,SR,SL,SR,SL,SR,..
828 	 * dst[blk1]: SL,SR,SL,SR,SL,SR,SL,SR,..
829 	 * dst[blk2]: SL,SR,SL,SR,SL,SR,SL,SR,..
830 	 *     :
831 	 */
832 	for (left = size; left > 0; left -= blksize) {
833 		s = (uint16_t *)src;
834 		d = (uint16_t *)dst;
835 		for (i = 0; i < blksize / sizeof(uint16_t) / 4; i++) {
836 			/* L,R,SL,SR -> SL,SR */
837 			s++;
838 			s++;
839 			*d++ = *s++;
840 			*d++ = *s++;
841 		}
842 
843 		s = (uint16_t *)src;
844 		d = (uint16_t *)src;
845 		for (i = 0; i < blksize / sizeof(uint16_t) / 2 / 2; i++) {
846 			/* L,R,SL,SR -> L,R */
847 			*d++ = *s++;
848 			*d++ = *s++;
849 			s++;
850 			s++;
851 		}
852 
853 		src = (char *)src + blksize;
854 		dst = (char *)dst + blksize;
855 	}
856 }
857 
858 static void
859 split_buffer_6ch(void *dst, void *src, int size, int blksize)
860 {
861 	int left, i;
862 	uint16_t *s, *d, *dc, *dl;
863 
864 	/*
865 	 * by default, treat as WAV style 5.1ch order
866 	 *   5.1ch(WAV): L R C LFE SL SR
867 	 *   5.1ch(AAC): C L R SL SR LFE
868 	 *        :
869 	 */
870 
871 	/*
872 	 * src[blk0]: L,R,C,LFE,SL,SR,L,R,C,LFE,SL,SR,...
873 	 * src[blk1]: L,R,C,LFE,SL,SR,L,R,C,LFE,SL,SR,...
874 	 * src[blk2]: L,R,C,LFE,SL,SR,L,R,C,LFE,SL,SR,...
875 	 *     :
876 	 * src[N-1] : L,R,C,LFE,SL,SR,L,R,C,LFE,SL,SR,...
877 	 *
878 	 *   rearrange to
879 	 *
880 	 * src[blk0]: L,R,L,R,..
881 	 * src[blk1]: L,R,L,R,..
882 	 * src[blk2]: L,R,L,R,..
883 	 *     :
884 	 *
885 	 * dst[blk0]: SL,SR,SL,SR,..
886 	 * dst[blk1]: SL,SR,SL,SR,..
887 	 * dst[blk2]: SL,SR,SL,SR,..
888 	 *     :
889 	 *
890 	 * dst[N/2+0]: C,C,C,..
891 	 * dst[N/2+1]: C,C,C,..
892 	 *     :
893 	 *
894 	 * dst[N/2+N/4+0]: LFE,LFE,LFE,..
895 	 * dst[N/2+N/4+1]: LFE,LFE,LFE,..
896 	 *     :
897 	 */
898 
899 	for (left = size; left > 0; left -= blksize) {
900 		s = (uint16_t *)src;
901 		d = (uint16_t *)dst;
902 		dc = (uint16_t *)((char *)dst + blksize / 2);
903 		dl = (uint16_t *)((char *)dst + blksize / 2 + blksize / 4);
904 		for (i = 0; i < blksize / sizeof(uint16_t) / 6; i++) {
905 #ifdef GCSCAUDIO_5_1CH_AAC_ORDER
906 			/*
907 			 * AAC: [C,L,R,SL,SR,LFE]
908 			 *  => [SL,SR]
909 			 *  => [C]
910 			 *  => [LFE]
911 			 */
912 			*dc++ = s[0];	/* C */
913 			*dl++ = s[5];	/* LFE */
914 			*d++ = s[3];	/* SL */
915 			*d++ = s[4];	/* SR */
916 #else
917 			/*
918 			 * WAV: [L,R,C,LFE,SL,SR]
919 			 *  => [SL,SR]
920 			 *  => [C]
921 			 *  => [LFE]
922 			 */
923 			*dc++ = s[2];	/* C */
924 			*dl++ = s[3];	/* LFE */
925 			*d++ = s[4];	/* SL */
926 			*d++ = s[5];	/* SR */
927 #endif
928 			s += 6;
929 		}
930 
931 		s = (uint16_t *)src;
932 		d = (uint16_t *)src;
933 		for (i = 0; i < blksize / sizeof(uint16_t) / 2 / 2; i++) {
934 #ifdef GCSCAUDIO_5_1CH_AAC_ORDER
935 			/* AAC: [C,L,R,SL,SR,LFE] => [L,R] */
936 			*d++ = s[1];
937 			*d++ = s[2];
938 #else
939 			/* WAV: [L,R,C,LFE,SL,SR] => [L,R] */
940 			*d++ = s[0];
941 			*d++ = s[1];
942 #endif
943 			s += 6;
944 		}
945 
946 		src = (char *)src + blksize;
947 		dst = (char *)dst + blksize;
948 	}
949 }
950 
951 static void
952 channel_splitter(struct gcscaudio_softc *sc)
953 {
954 	int splitsize, left;
955 	void *src, *dst;
956 
957 	if (sc->sc_mch_splitter == NULL)
958 		return;
959 
960 	left = sc->sc_mch_split_size - sc->sc_mch_split_off;
961 	splitsize = sc->sc_mch_split_blksize;
962 	if (left < splitsize)
963 		splitsize = left;
964 
965 	src = (char *)sc->sc_mch_split_start + sc->sc_mch_split_off;
966 	dst = (char *)sc->sc_mch_split_buf + sc->sc_mch_split_off;
967 
968 	sc->sc_mch_splitter(dst, src, splitsize, sc->sc_mch_split_blksize);
969 
970 	sc->sc_mch_split_off += sc->sc_mch_split_blksize;
971 	if (sc->sc_mch_split_off >= sc->sc_mch_split_size)
972 		sc->sc_mch_split_off = 0;
973 }
974 
975 static int
976 gcscaudio_trigger_output(void *addr, void *start, void *end, int blksize,
977                          void (*intr)(void *), void *arg,
978                          const audio_params_t *param)
979 {
980 	struct gcscaudio_softc *sc;
981 	size_t size;
982 
983 	sc = (struct gcscaudio_softc *)addr;
984 	sc->sc_play.ch_intr = intr;
985 	sc->sc_play.ch_intr_arg = arg;
986 	size = (char *)end - (char *)start;
987 
988 	switch (sc->sc_play.ch_params.channels) {
989 	case 2:
990 		if (build_prdtables(sc, PRD_TABLE_FRONT, start, size, blksize,
991 		    blksize, 0))
992 			return EINVAL;
993 
994 		if (!AC97_IS_4CH(sc->codec_if)) {
995 			/*
996 			 * output 2ch PCM to FRONT.LR(BM0)
997 			 *
998 			 * 2ch: L,R,L,R,L,R,L,R,... => BM0: L,R,L,R,L,R,L,R,...
999 			 *
1000 			 */
1001 			bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM0_PRD,
1002 			    PRDADDR(PRD_TABLE_FRONT, 0));
1003 
1004 			/* start DMA transfer */
1005 			bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM0_CMD,
1006 			    ACC_BMx_CMD_WRITE |
1007 			    ACC_BMx_CMD_BYTE_ORD_EL |
1008 			    ACC_BMx_CMD_BM_CTL_ENABLE);
1009 		} else {
1010 			/*
1011 			 * output same PCM to FRONT.LR(BM0) and SURROUND.LR(BM6).
1012 			 * CENTER(BM4) and LFE(BM7) doesn't sound.
1013 			 *
1014 			 * 2ch: L,R,L,R,L,R,L,R,... => BM0: L,R,L,R,L,R,L,R,...
1015 			 *                             BM6: (same of BM0)
1016 			 *                             BM4: none
1017 			 *                             BM7: none
1018 			 */
1019 			bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM0_PRD,
1020 			    PRDADDR(PRD_TABLE_FRONT, 0));
1021 			bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM6_PRD,
1022 			    PRDADDR(PRD_TABLE_FRONT, 0));
1023 
1024 			/* start DMA transfer */
1025 			bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM0_CMD,
1026 			    ACC_BMx_CMD_WRITE |
1027 			    ACC_BMx_CMD_BYTE_ORD_EL |
1028 			    ACC_BMx_CMD_BM_CTL_ENABLE);
1029 			bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM6_CMD,
1030 			    ACC_BMx_CMD_WRITE |
1031 			    ACC_BMx_CMD_BYTE_ORD_EL |
1032 			    ACC_BMx_CMD_BM_CTL_ENABLE);
1033 		}
1034 		break;
1035 	case 4:
1036 		/*
1037 		 * output 4ch PCM split to FRONT.LR(BM0) and SURROUND.LR(BM6).
1038 		 * CENTER(BM4) and LFE(BM7) doesn't sound.
1039 		 *
1040 		 * rearrange ordered channel to continuous per channel
1041 		 *
1042 		 *   4ch: L,R,SL,SR,L,R,SL,SR,... => BM0: L,R,L,R,...
1043 		 *                                   BM6: SL,SR,SL,SR,...
1044 		 *                                   BM4: none
1045 		 *                                   BM7: none
1046 		 */
1047 		if (sc->sc_mch_split_buf)
1048 			gcscaudio_free(sc, sc->sc_mch_split_buf,
1049 			    sc->sc_mch_split_size);
1050 
1051 		if ((sc->sc_mch_split_buf = gcscaudio_malloc(sc, AUMODE_PLAY,
1052 		    size)) == NULL)
1053 			return ENOMEM;
1054 
1055 		/*
1056 		 * 1st and 2nd blocks are split immediately.
1057 		 * Other blocks will be split synchronous with intr.
1058 		 */
1059 		split_buffer_4ch(sc->sc_mch_split_buf, start, blksize * 2,
1060 		    blksize);
1061 
1062 		sc->sc_mch_split_start = start;
1063 		sc->sc_mch_split_size = size;
1064 		sc->sc_mch_split_blksize = blksize;
1065 		sc->sc_mch_split_off = (blksize * 2) % size;
1066 		sc->sc_mch_splitter = split_buffer_4ch;	/* split function */
1067 
1068 		if (build_prdtables(sc, PRD_TABLE_FRONT, start, size, blksize,
1069 		    blksize / 2, 0))
1070 			return EINVAL;
1071 		if (build_prdtables(sc, PRD_TABLE_SURR, sc->sc_mch_split_buf,
1072 		    size, blksize, blksize / 2, 0))
1073 			return EINVAL;
1074 
1075 		bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM0_PRD,
1076 		    PRDADDR(PRD_TABLE_FRONT, 0));
1077 		bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM6_PRD,
1078 		    PRDADDR(PRD_TABLE_SURR, 0));
1079 
1080 		/* start DMA transfer */
1081 		bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM0_CMD,
1082 		    ACC_BMx_CMD_WRITE |
1083 		    ACC_BMx_CMD_BYTE_ORD_EL |
1084 		    ACC_BMx_CMD_BM_CTL_ENABLE);
1085 		bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM6_CMD,
1086 		    ACC_BMx_CMD_WRITE |
1087 		    ACC_BMx_CMD_BYTE_ORD_EL |
1088 		    ACC_BMx_CMD_BM_CTL_ENABLE);
1089 		break;
1090 	case 6:
1091 		/*
1092 		 * output 6ch PCM split to
1093 		 * FRONT.LR(BM0), SURROUND.LR(BM6), CENTER(BM4) and LFE(BM7)
1094 		 *
1095 		 * rearrange ordered channel to continuous per channel
1096 		 *
1097 		 *   5.1ch: L,R,C,LFE,SL,SR,... => BM0: L,R,...
1098 		 *                                 BM4: C,...
1099 		 *                                 BM6: SL,SR,...
1100 		 *                                 BM7: LFE,...
1101 		 *
1102 		 */
1103 		if (sc->sc_mch_split_buf)
1104 			gcscaudio_free(sc, sc->sc_mch_split_buf,
1105 			    sc->sc_mch_split_size);
1106 
1107 		if ((sc->sc_mch_split_buf = gcscaudio_malloc(sc, AUMODE_PLAY,
1108 		    size)) == NULL)
1109 			return ENOMEM;
1110 
1111 		/*
1112 		 * 1st and 2nd blocks are split immediately.
1113 		 * Other block will be split synchronous with intr.
1114 		 */
1115 		split_buffer_6ch(sc->sc_mch_split_buf, start, blksize * 2,
1116 		    blksize);
1117 
1118 		sc->sc_mch_split_start = start;
1119 		sc->sc_mch_split_size = size;
1120 		sc->sc_mch_split_blksize = blksize;
1121 		sc->sc_mch_split_off = (blksize * 2) % size;
1122 		sc->sc_mch_splitter = split_buffer_6ch;	/* split function */
1123 
1124 		if (build_prdtables(sc, PRD_TABLE_FRONT, start, size, blksize,
1125 		    blksize / 3, 0))
1126 			return EINVAL;
1127 		if (build_prdtables(sc, PRD_TABLE_CENTER, sc->sc_mch_split_buf,
1128 		    size, blksize, blksize / 3, blksize / 2))
1129 			return EINVAL;
1130 		if (build_prdtables(sc, PRD_TABLE_SURR, sc->sc_mch_split_buf,
1131 		    size, blksize, blksize / 3, 0))
1132 			return EINVAL;
1133 		if (build_prdtables(sc, PRD_TABLE_LFE, sc->sc_mch_split_buf,
1134 		    size, blksize, blksize / 3, blksize / 2 + blksize / 4))
1135 			return EINVAL;
1136 
1137 		bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM0_PRD,
1138 		    PRDADDR(PRD_TABLE_FRONT, 0));
1139 		bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM4_PRD,
1140 		    PRDADDR(PRD_TABLE_CENTER, 0));
1141 		bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM6_PRD,
1142 		    PRDADDR(PRD_TABLE_SURR, 0));
1143 		bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM7_PRD,
1144 		    PRDADDR(PRD_TABLE_LFE, 0));
1145 
1146 		/* start DMA transfer */
1147 		bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM0_CMD,
1148 		    ACC_BMx_CMD_WRITE | ACC_BMx_CMD_BYTE_ORD_EL |
1149 		    ACC_BMx_CMD_BM_CTL_ENABLE);
1150 		bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM4_CMD,
1151 		    ACC_BMx_CMD_WRITE | ACC_BMx_CMD_BYTE_ORD_EL |
1152 		    ACC_BMx_CMD_BM_CTL_ENABLE);
1153 		bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM6_CMD,
1154 		    ACC_BMx_CMD_WRITE | ACC_BMx_CMD_BYTE_ORD_EL |
1155 		    ACC_BMx_CMD_BM_CTL_ENABLE);
1156 		bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM7_CMD,
1157 		    ACC_BMx_CMD_WRITE | ACC_BMx_CMD_BYTE_ORD_EL |
1158 		    ACC_BMx_CMD_BM_CTL_ENABLE);
1159 		break;
1160 	}
1161 
1162 	return 0;
1163 }
1164 
1165 static int
1166 gcscaudio_trigger_input(void *addr, void *start, void *end, int blksize,
1167                         void (*intr)(void *), void *arg,
1168                         const audio_params_t *param)
1169 {
1170 	struct gcscaudio_softc *sc;
1171 	size_t size;
1172 
1173 	sc = (struct gcscaudio_softc *)addr;
1174 	sc->sc_rec.ch_intr = intr;
1175 	sc->sc_rec.ch_intr_arg = arg;
1176 	size = (char *)end - (char *)start;
1177 
1178 	if (build_prdtables(sc, PRD_TABLE_REC, start, size, blksize, blksize, 0))
1179 		return EINVAL;
1180 
1181 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ACC_BM1_PRD,
1182 	    PRDADDR(PRD_TABLE_REC, 0));
1183 
1184 	/* start transfer */
1185 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, ACC_BM1_CMD,
1186 	    ACC_BMx_CMD_READ |
1187 	    ACC_BMx_CMD_BYTE_ORD_EL |
1188 	    ACC_BMx_CMD_BM_CTL_ENABLE);
1189 
1190 	return 0;
1191 }
1192 
1193 static void
1194 gcscaudio_get_locks(void *arg, kmutex_t **intr, kmutex_t **thread)
1195 {
1196 	struct gcscaudio_softc *sc;
1197 
1198 	sc = (struct gcscaudio_softc *)arg;
1199 
1200 	*intr = &sc->sc_intr_lock;
1201 	*thread = &sc->sc_lock;
1202 }
1203 
1204 static int
1205 gcscaudio_intr(void *arg)
1206 {
1207 	struct gcscaudio_softc *sc;
1208 	uint16_t intr;
1209 	uint8_t bmstat;
1210 	int nintr;
1211 
1212 	nintr = 0;
1213 	sc = (struct gcscaudio_softc *)arg;
1214 
1215 	mutex_spin_enter(&sc->sc_intr_lock);
1216 
1217 	intr = bus_space_read_2(sc->sc_iot, sc->sc_ioh, ACC_IRQ_STATUS);
1218 	if (intr == 0)
1219 		goto done;
1220 
1221 	/* Front output */
1222 	if (intr & ACC_IRQ_STATUS_BM0_IRQ_STS) {
1223 		bmstat = bus_space_read_1(sc->sc_iot, sc->sc_ioh, ACC_BM0_STATUS);
1224 		if (bmstat & ACC_BMx_STATUS_BM_EOP_ERR)
1225 			aprint_normal_dev(&sc->sc_dev, "BM0: Bus Master Error\n");
1226 		if (!(bmstat & ACC_BMx_STATUS_EOP))
1227 			aprint_normal_dev(&sc->sc_dev, "BM0: NO End of Page?\n");
1228 
1229 		if (sc->sc_play.ch_intr) {
1230 			sc->sc_play.ch_intr(sc->sc_play.ch_intr_arg);
1231 			channel_splitter(sc);
1232 		}
1233 		nintr++;
1234 	}
1235 
1236 	/* Center output */
1237 	if (intr & ACC_IRQ_STATUS_BM4_IRQ_STS) {
1238 		bmstat = bus_space_read_1(sc->sc_iot, sc->sc_ioh, ACC_BM4_STATUS);
1239 		if (bmstat & ACC_BMx_STATUS_BM_EOP_ERR)
1240 			aprint_normal_dev(&sc->sc_dev, "BM4: Bus Master Error\n");
1241 		if (!(bmstat & ACC_BMx_STATUS_EOP))
1242 			aprint_normal_dev(&sc->sc_dev, "BM4: NO End of Page?\n");
1243 
1244 		nintr++;
1245 	}
1246 
1247 	/* Surround output */
1248 	if (intr & ACC_IRQ_STATUS_BM6_IRQ_STS) {
1249 		bmstat = bus_space_read_1(sc->sc_iot, sc->sc_ioh, ACC_BM6_STATUS);
1250 		if (bmstat & ACC_BMx_STATUS_BM_EOP_ERR)
1251 			aprint_normal_dev(&sc->sc_dev, "BM6: Bus Master Error\n");
1252 		if (!(bmstat & ACC_BMx_STATUS_EOP))
1253 			aprint_normal_dev(&sc->sc_dev, "BM6: NO End of Page?\n");
1254 
1255 		nintr++;
1256 	}
1257 
1258 	/* LowFrequencyEffect output */
1259 	if (intr & ACC_IRQ_STATUS_BM7_IRQ_STS) {
1260 		bmstat = bus_space_read_1(sc->sc_iot, sc->sc_ioh, ACC_BM7_STATUS);
1261 		if (bmstat & ACC_BMx_STATUS_BM_EOP_ERR)
1262 			aprint_normal_dev(&sc->sc_dev, "BM7: Bus Master Error\n");
1263 		if (!(bmstat & ACC_BMx_STATUS_EOP))
1264 			aprint_normal_dev(&sc->sc_dev, "BM7: NO End of Page?\n");
1265 
1266 		nintr++;
1267 	}
1268 
1269 	/* record */
1270 	if (intr & ACC_IRQ_STATUS_BM1_IRQ_STS) {
1271 		bmstat = bus_space_read_1(sc->sc_iot, sc->sc_ioh, ACC_BM1_STATUS);
1272 		if (bmstat & ACC_BMx_STATUS_BM_EOP_ERR)
1273 			aprint_normal_dev(&sc->sc_dev, "BM1: Bus Master Error\n");
1274 		if (!(bmstat & ACC_BMx_STATUS_EOP))
1275 			aprint_normal_dev(&sc->sc_dev, "BM1: NO End of Page?\n");
1276 
1277 		if (sc->sc_rec.ch_intr) {
1278 			sc->sc_rec.ch_intr(sc->sc_rec.ch_intr_arg);
1279 		}
1280 		nintr++;
1281 	}
1282 
1283 #ifdef GCSCAUDIO_DEBUG
1284 	if (intr & ACC_IRQ_STATUS_IRQ_STS)
1285 		aprint_normal_dev(&sc->sc_dev, "Codec GPIO IRQ Status\n");
1286 	if (intr & ACC_IRQ_STATUS_WU_IRQ_STS)
1287 		aprint_normal_dev(&sc->sc_dev, "Codec GPIO Wakeup IRQ Status\n");
1288 	if (intr & ACC_IRQ_STATUS_BM2_IRQ_STS)
1289 		aprint_normal_dev(&sc->sc_dev, "Audio Bus Master 2 IRQ Status\n");
1290 	if (intr & ACC_IRQ_STATUS_BM3_IRQ_STS)
1291 		aprint_normal_dev(&sc->sc_dev, "Audio Bus Master 3 IRQ Status\n");
1292 	if (intr & ACC_IRQ_STATUS_BM5_IRQ_STS)
1293 		aprint_normal_dev(&sc->sc_dev, "Audio Bus Master 5 IRQ Status\n");
1294 #endif
1295 
1296 done:
1297 	mutex_spin_exit(&sc->sc_intr_lock);
1298 
1299 	return nintr ? 1 : 0;
1300 }
1301 
1302 static bool
1303 gcscaudio_resume(device_t dv, const pmf_qual_t *qual)
1304 {
1305 	struct gcscaudio_softc *sc = device_private(dv);
1306 
1307 	gcscaudio_reset_codec(sc);
1308 	DELAY(1000);
1309 	(sc->codec_if->vtbl->restore_ports)(sc->codec_if);
1310 
1311 	return true;
1312 }
1313 
1314 static int
1315 gcscaudio_allocate_dma(struct gcscaudio_softc *sc, size_t size, void **addrp,
1316                        bus_dma_segment_t *seglist, int nseg, int *rsegp,
1317                        bus_dmamap_t *mapp)
1318 {
1319 	int error;
1320 
1321 	if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, seglist,
1322 	    nseg, rsegp, BUS_DMA_WAITOK)) != 0) {
1323 		aprint_error_dev(&sc->sc_dev,
1324 		    "unable to allocate DMA buffer, error=%d\n", error);
1325 		goto fail_alloc;
1326 	}
1327 
1328 	if ((error = bus_dmamem_map(sc->sc_dmat, seglist, nseg, size, addrp,
1329 	    BUS_DMA_WAITOK | BUS_DMA_COHERENT)) != 0) {
1330 		aprint_error_dev(&sc->sc_dev,
1331 		    "unable to map DMA buffer, error=%d\n",
1332 		    error);
1333 		goto fail_map;
1334 	}
1335 
1336 	if ((error = bus_dmamap_create(sc->sc_dmat, size, nseg, size, 0,
1337 	    BUS_DMA_WAITOK, mapp)) != 0) {
1338 		aprint_error_dev(&sc->sc_dev,
1339 		    "unable to create DMA map, error=%d\n", error);
1340 		goto fail_create;
1341 	}
1342 
1343 	if ((error = bus_dmamap_load(sc->sc_dmat, *mapp, *addrp, size, NULL,
1344 	    BUS_DMA_WAITOK)) != 0) {
1345 		aprint_error_dev(&sc->sc_dev,
1346 		    "unable to load DMA map, error=%d\n", error);
1347 		goto fail_load;
1348 	}
1349 
1350 	return 0;
1351 
1352 fail_load:
1353 	bus_dmamap_destroy(sc->sc_dmat, *mapp);
1354 fail_create:
1355 	bus_dmamem_unmap(sc->sc_dmat, *addrp, size);
1356 fail_map:
1357 	bus_dmamem_free(sc->sc_dmat, seglist, nseg);
1358 fail_alloc:
1359 	return error;
1360 }
1361