xref: /netbsd-src/sys/dev/pci/yds.c (revision 8b0f9554ff8762542c4defc4f70e1eb76fb508fa)
1 /*	$NetBSD: yds.c,v 1.39 2007/12/09 20:28:13 jmcneill Exp $	*/
2 
3 /*
4  * Copyright (c) 2000, 2001 Kazuki Sakamoto and Minoura Makoto.
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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 /*
29  * Yamaha YMF724[B-F]/740[B-C]/744/754
30  *
31  * Documentation links:
32  * - ftp://ftp.alsa-project.org/pub/manuals/yamaha/
33  * - ftp://ftp.alsa-project.org/pub/manuals/yamaha/pci/
34  *
35  * TODO:
36  * - FM synth volume (difficult: mixed before ac97)
37  * - Digital in/out (SPDIF) support
38  * - Effect??
39  */
40 
41 #include <sys/cdefs.h>
42 __KERNEL_RCSID(0, "$NetBSD: yds.c,v 1.39 2007/12/09 20:28:13 jmcneill Exp $");
43 
44 #include "mpu.h"
45 
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/fcntl.h>
50 #include <sys/malloc.h>
51 #include <sys/device.h>
52 #include <sys/proc.h>
53 
54 #include <dev/pci/pcidevs.h>
55 #include <dev/pci/pcireg.h>
56 #include <dev/pci/pcivar.h>
57 
58 #include <sys/audioio.h>
59 #include <dev/audio_if.h>
60 #include <dev/mulaw.h>
61 #include <dev/auconv.h>
62 #include <dev/ic/ac97reg.h>
63 #include <dev/ic/ac97var.h>
64 #include <dev/ic/mpuvar.h>
65 
66 #include <sys/bus.h>
67 #include <sys/intr.h>
68 
69 #include <dev/microcode/yds/yds_hwmcode.h>
70 #include <dev/pci/ydsreg.h>
71 #include <dev/pci/ydsvar.h>
72 
73 /* Debug */
74 #undef YDS_USE_REC_SLOT
75 #define YDS_USE_P44
76 
77 #ifdef AUDIO_DEBUG
78 # define DPRINTF(x)	if (ydsdebug) printf x
79 # define DPRINTFN(n,x)	if (ydsdebug>(n)) printf x
80 int	ydsdebug = 0;
81 #else
82 # define DPRINTF(x)
83 # define DPRINTFN(n,x)
84 #endif
85 #ifdef YDS_USE_REC_SLOT
86 # define YDS_INPUT_SLOT 0	/* REC slot = ADC + loopbacks */
87 #else
88 # define YDS_INPUT_SLOT 1	/* ADC slot */
89 #endif
90 
91 static int	yds_match(struct device *, struct cfdata *, void *);
92 static void	yds_attach(struct device *, struct device *, void *);
93 static int	yds_intr(void *);
94 
95 #define DMAADDR(p)	((p)->map->dm_segs[0].ds_addr)
96 #define KERNADDR(p)	((void *)((p)->addr))
97 
98 static int	yds_allocmem(struct yds_softc *, size_t, size_t,
99 			     struct yds_dma *);
100 static int	yds_freemem(struct yds_softc *, struct yds_dma *);
101 
102 #ifndef AUDIO_DEBUG
103 #define YWRITE1(sc, r, x) bus_space_write_1((sc)->memt, (sc)->memh, (r), (x))
104 #define YWRITE2(sc, r, x) bus_space_write_2((sc)->memt, (sc)->memh, (r), (x))
105 #define YWRITE4(sc, r, x) bus_space_write_4((sc)->memt, (sc)->memh, (r), (x))
106 #define YREAD1(sc, r)	bus_space_read_1((sc)->memt, (sc)->memh, (r))
107 #define YREAD2(sc, r)	bus_space_read_2((sc)->memt, (sc)->memh, (r))
108 #define YREAD4(sc, r)	bus_space_read_4((sc)->memt, (sc)->memh, (r))
109 #else
110 static uint16_t YREAD2(struct yds_softc *sc, bus_size_t r)
111 {
112 	DPRINTFN(5, (" YREAD2(0x%lX)\n", (unsigned long)r));
113 	return bus_space_read_2(sc->memt, sc->memh, r);
114 }
115 
116 static uint32_t YREAD4(struct yds_softc *sc, bus_size_t r)
117 {
118 	DPRINTFN(5, (" YREAD4(0x%lX)\n", (unsigned long)r));
119 	return bus_space_read_4(sc->memt, sc->memh, r);
120 }
121 
122 #ifdef notdef
123 static void YWRITE1(struct yds_softc *sc, bus_size_t r, uint8_t x)
124 {
125 	DPRINTFN(5, (" YWRITE1(0x%lX,0x%lX)\n", (unsigned long)r,
126 		     (unsigned long)x));
127 	bus_space_write_1(sc->memt, sc->memh, r, x);
128 }
129 #endif
130 
131 static void YWRITE2(struct yds_softc *sc, bus_size_t r, uint16_t x)
132 {
133 	DPRINTFN(5, (" YWRITE2(0x%lX,0x%lX)\n", (unsigned long)r,
134 		     (unsigned long)x));
135 	bus_space_write_2(sc->memt, sc->memh, r, x);
136 }
137 
138 static void YWRITE4(struct yds_softc *sc, bus_size_t r, uint32_t x)
139 {
140 	DPRINTFN(5, (" YWRITE4(0x%lX,0x%lX)\n", (unsigned long)r,
141 		     (unsigned long)x));
142 	bus_space_write_4(sc->memt, sc->memh, r, x);
143 }
144 #endif
145 
146 #define	YWRITEREGION4(sc, r, x, c)	\
147 	bus_space_write_region_4((sc)->memt, (sc)->memh, (r), (x), (c) / 4)
148 
149 CFATTACH_DECL(yds, sizeof(struct yds_softc),
150     yds_match, yds_attach, NULL, NULL);
151 
152 static int	yds_open(void *, int);
153 static void	yds_close(void *);
154 static int	yds_query_encoding(void *, struct audio_encoding *);
155 static int	yds_set_params(void *, int, int, audio_params_t *,
156 			       audio_params_t *, stream_filter_list_t *,
157 			       stream_filter_list_t *);
158 static int	yds_round_blocksize(void *, int, int, const audio_params_t *);
159 static int	yds_trigger_output(void *, void *, void *, int,
160 				   void (*)(void *), void *,
161 				   const audio_params_t *);
162 static int	yds_trigger_input(void *, void *, void *, int,
163 				  void (*)(void *), void *,
164 				  const audio_params_t *);
165 static int	yds_halt_output(void *);
166 static int	yds_halt_input(void *);
167 static int	yds_getdev(void *, struct audio_device *);
168 static int	yds_mixer_set_port(void *, mixer_ctrl_t *);
169 static int	yds_mixer_get_port(void *, mixer_ctrl_t *);
170 static void   *yds_malloc(void *, int, size_t, struct malloc_type *, int);
171 static void	yds_free(void *, void *, struct malloc_type *);
172 static size_t	yds_round_buffersize(void *, int, size_t);
173 static paddr_t yds_mappage(void *, void *, off_t, int);
174 static int	yds_get_props(void *);
175 static int	yds_query_devinfo(void *, mixer_devinfo_t *);
176 
177 static int     yds_attach_codec(void *, struct ac97_codec_if *);
178 static int	yds_read_codec(void *, uint8_t, uint16_t *);
179 static int	yds_write_codec(void *, uint8_t, uint16_t);
180 static int     yds_reset_codec(void *);
181 
182 static u_int	yds_get_dstype(int);
183 static int	yds_download_mcode(struct yds_softc *);
184 static int	yds_allocate_slots(struct yds_softc *);
185 static void	yds_configure_legacy(struct device *);
186 static void	yds_enable_dsp(struct yds_softc *);
187 static int	yds_disable_dsp(struct yds_softc *);
188 static int	yds_ready_codec(struct yds_codec_softc *);
189 static int	yds_halt(struct yds_softc *);
190 static uint32_t yds_get_lpfq(u_int);
191 static uint32_t yds_get_lpfk(u_int);
192 static struct yds_dma *yds_find_dma(struct yds_softc *, void *);
193 
194 static int	yds_init(struct yds_softc *);
195 
196 #ifdef AUDIO_DEBUG
197 static void	yds_dump_play_slot(struct yds_softc *, int);
198 #define	YDS_DUMP_PLAY_SLOT(n, sc, bank) \
199 	if (ydsdebug > (n)) yds_dump_play_slot(sc, bank)
200 #else
201 #define	YDS_DUMP_PLAY_SLOT(n, sc, bank)
202 #endif /* AUDIO_DEBUG */
203 
204 static const struct audio_hw_if yds_hw_if = {
205 	yds_open,
206 	yds_close,
207 	NULL,
208 	yds_query_encoding,
209 	yds_set_params,
210 	yds_round_blocksize,
211 	NULL,
212 	NULL,
213 	NULL,
214 	NULL,
215 	NULL,
216 	yds_halt_output,
217 	yds_halt_input,
218 	NULL,
219 	yds_getdev,
220 	NULL,
221 	yds_mixer_set_port,
222 	yds_mixer_get_port,
223 	yds_query_devinfo,
224 	yds_malloc,
225 	yds_free,
226 	yds_round_buffersize,
227 	yds_mappage,
228 	yds_get_props,
229 	yds_trigger_output,
230 	yds_trigger_input,
231 	NULL,
232 	NULL,	/* powerstate */
233 };
234 
235 static const struct audio_device yds_device = {
236 	"Yamaha DS-1",
237 	"",
238 	"yds"
239 };
240 
241 static const struct {
242 	uint	id;
243 	u_int	flags;
244 #define YDS_CAP_MCODE_1			0x0001
245 #define YDS_CAP_MCODE_1E		0x0002
246 #define YDS_CAP_LEGACY_SELECTABLE	0x0004
247 #define YDS_CAP_LEGACY_FLEXIBLE		0x0008
248 #define YDS_CAP_HAS_P44			0x0010
249 } yds_chip_capabliity_list[] = {
250 	{ PCI_PRODUCT_YAMAHA_YMF724,
251 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },
252 	/* 740[C] has only 32 slots.  But anyway we use only 2 */
253 	{ PCI_PRODUCT_YAMAHA_YMF740,
254 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },	/* XXX NOT TESTED */
255 	{ PCI_PRODUCT_YAMAHA_YMF740C,
256 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
257 	{ PCI_PRODUCT_YAMAHA_YMF724F,
258 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
259 	{ PCI_PRODUCT_YAMAHA_YMF744B,
260 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE },
261 	{ PCI_PRODUCT_YAMAHA_YMF754,
262 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE|YDS_CAP_HAS_P44 },
263 	{ 0, 0 }
264 };
265 #ifdef AUDIO_DEBUG
266 #define YDS_CAP_BITS	"\020\005P44\004LEGFLEX\003LEGSEL\002MCODE1E\001MCODE1"
267 #endif
268 
269 static const struct audio_format yds_formats[] = {
270 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
271 	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
272 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
273 	 2, AUFMT_STEREO, 0, {4000, 48000}},
274 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
275 	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
276 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
277 	 2, AUFMT_STEREO, 0, {4000, 48000}},
278 };
279 #define	YDS_NFORMATS	(sizeof(yds_formats) / sizeof(struct audio_format))
280 
281 #ifdef AUDIO_DEBUG
282 static void
283 yds_dump_play_slot(struct yds_softc *sc, int bank)
284 {
285 	int i, j;
286 	uint32_t *p;
287 	uint32_t num;
288 	char *pa;
289 
290 	for (i = 0; i < N_PLAY_SLOTS; i++) {
291 		printf("pbankp[%d] = %p,", i*2, sc->pbankp[i*2]);
292 		printf("pbankp[%d] = %p\n", i*2+1, sc->pbankp[i*2+1]);
293 	}
294 
295 	pa = (char *)DMAADDR(&sc->sc_ctrldata) + sc->pbankoff;
296 	p = (uint32_t *)sc->ptbl;
297 	printf("ptbl + 0: %d\n", *p++);
298 	for (i = 0; i < N_PLAY_SLOTS; i++) {
299 		printf("ptbl + %d: 0x%x, should be %p\n",
300 		       i+1, *p,
301 		       pa + i * sizeof(struct play_slot_ctrl_bank) *
302 				N_PLAY_SLOT_CTRL_BANK);
303 		p++;
304 	}
305 
306 	num = le32toh(*(uint32_t*)sc->ptbl);
307 	printf("numofplay = %d\n", num);
308 
309 	for (i = 0; i < num; i++) {
310 		p = (uint32_t *)sc->pbankp[i*2];
311 
312 		printf("  pbankp[%d], bank 0 : %p\n", i*2, p);
313 		for (j = 0;
314 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(uint32_t);
315 		     j++) {
316 			printf("    0x%02x: 0x%08x\n",
317 			       (unsigned)(j * sizeof(uint32_t)),
318 			       (unsigned)*p++);
319 		}
320 
321 		p = (uint32_t *)sc->pbankp[i*2 + 1];
322 		printf("  pbankp[%d], bank 1 : %p\n", i*2 + 1, p);
323 		for (j = 0;
324 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(uint32_t);
325 		     j++) {
326 			printf("    0x%02x: 0x%08x\n",
327 			       (unsigned)(j * sizeof(uint32_t)),
328 			       (unsigned)*p++);
329 		}
330 	}
331 }
332 #endif /* AUDIO_DEBUG */
333 
334 static u_int
335 yds_get_dstype(int id)
336 {
337 	int i;
338 
339 	for (i = 0; yds_chip_capabliity_list[i].id; i++) {
340 		if (PCI_PRODUCT(id) == yds_chip_capabliity_list[i].id)
341 			return yds_chip_capabliity_list[i].flags;
342 	}
343 
344 	return -1;
345 }
346 
347 static int
348 yds_download_mcode(struct yds_softc *sc)
349 {
350 	static struct {
351 		const uint32_t *mcode;
352 		size_t size;
353 	} ctrls[] = {
354 		{yds_ds1_ctrl_mcode, sizeof(yds_ds1_ctrl_mcode)},
355 		{yds_ds1e_ctrl_mcode, sizeof(yds_ds1e_ctrl_mcode)},
356 	};
357 	u_int ctrl;
358 	const uint32_t *p;
359 	size_t size;
360 	int dstype;
361 
362 	if (sc->sc_flags & YDS_CAP_MCODE_1)
363 		dstype = YDS_DS_1;
364 	else if (sc->sc_flags & YDS_CAP_MCODE_1E)
365 		dstype = YDS_DS_1E;
366 	else
367 		return 1;	/* unknown */
368 
369 	if (yds_disable_dsp(sc))
370 		return 1;
371 
372 	/* Software reset */
373 	YWRITE4(sc, YDS_MODE, YDS_MODE_RESET);
374 	YWRITE4(sc, YDS_MODE, 0);
375 
376 	YWRITE4(sc, YDS_MAPOF_REC, 0);
377 	YWRITE4(sc, YDS_MAPOF_EFFECT, 0);
378 	YWRITE4(sc, YDS_PLAY_CTRLBASE, 0);
379 	YWRITE4(sc, YDS_REC_CTRLBASE, 0);
380 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, 0);
381 	YWRITE4(sc, YDS_WORK_BASE, 0);
382 
383 	ctrl = YREAD2(sc, YDS_GLOBAL_CONTROL);
384 	YWRITE2(sc, YDS_GLOBAL_CONTROL, ctrl & ~0x0007);
385 
386 	/* Download DSP microcode. */
387 	p = yds_dsp_mcode;
388 	size = sizeof(yds_dsp_mcode);
389 	YWRITEREGION4(sc, YDS_DSP_INSTRAM, p, size);
390 
391 	/* Download CONTROL microcode. */
392 	p = ctrls[dstype].mcode;
393 	size = ctrls[dstype].size;
394 	YWRITEREGION4(sc, YDS_CTRL_INSTRAM, p, size);
395 
396 	yds_enable_dsp(sc);
397 	delay(10 * 1000);		/* nessesary on my 724F (??) */
398 
399 	return 0;
400 }
401 
402 static int
403 yds_allocate_slots(struct yds_softc *sc)
404 {
405 	size_t pcs, rcs, ecs, ws, memsize;
406 	void *mp;
407 	uint32_t da;		/* DMA address */
408 	char *va;		/* KVA */
409 	off_t cb;
410 	int i;
411 	struct yds_dma *p;
412 
413 	/* Alloc DSP Control Data */
414 	pcs = YREAD4(sc, YDS_PLAY_CTRLSIZE) * sizeof(uint32_t);
415 	rcs = YREAD4(sc, YDS_REC_CTRLSIZE) * sizeof(uint32_t);
416 	ecs = YREAD4(sc, YDS_EFFECT_CTRLSIZE) * sizeof(uint32_t);
417 	ws = WORK_SIZE;
418 	YWRITE4(sc, YDS_WORK_SIZE, ws / sizeof(uint32_t));
419 
420 	DPRINTF(("play control size : %d\n", (unsigned int)pcs));
421 	DPRINTF(("rec control size : %d\n", (unsigned int)rcs));
422 	DPRINTF(("eff control size : %d\n", (unsigned int)ecs));
423 	DPRINTF(("work size : %d\n", (unsigned int)ws));
424 #ifdef DIAGNOSTIC
425 	if (pcs != sizeof(struct play_slot_ctrl_bank)) {
426 		printf("%s: invalid play slot ctrldata %d != %d\n",
427 		       sc->sc_dev.dv_xname, (unsigned int)pcs,
428 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
429 	if (rcs != sizeof(struct rec_slot_ctrl_bank))
430 		printf("%s: invalid rec slot ctrldata %d != %d\n",
431 		       sc->sc_dev.dv_xname, (unsigned int)rcs,
432 		       (unsigned int)sizeof(struct rec_slot_ctrl_bank));
433 	}
434 #endif
435 
436 	memsize = N_PLAY_SLOTS*N_PLAY_SLOT_CTRL_BANK*pcs +
437 		  N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK*rcs + ws;
438 	memsize += (N_PLAY_SLOTS+1)*sizeof(uint32_t);
439 
440 	p = &sc->sc_ctrldata;
441 	if (KERNADDR(p) == NULL) {
442 		i = yds_allocmem(sc, memsize, 16, p);
443 		if (i) {
444 			printf("%s: couldn't alloc/map DSP DMA buffer, reason %d\n",
445 				sc->sc_dev.dv_xname, i);
446 			free(p, M_DEVBUF);
447 			return 1;
448 		}
449 	}
450 	mp = KERNADDR(p);
451 	da = DMAADDR(p);
452 
453 	DPRINTF(("mp:%p, DMA addr:%p\n",
454 		 mp, (void *)sc->sc_ctrldata.map->dm_segs[0].ds_addr));
455 
456 	memset(mp, 0, memsize);
457 
458 	/* Work space */
459 	cb = 0;
460 	va = (uint8_t *)mp;
461 	YWRITE4(sc, YDS_WORK_BASE, da + cb);
462 	cb += ws;
463 
464 	/* Play control data table */
465 	sc->ptbl = (uint32_t *)(va + cb);
466 	sc->ptbloff = cb;
467 	YWRITE4(sc, YDS_PLAY_CTRLBASE, da + cb);
468 	cb += (N_PLAY_SLOT_CTRL + 1) * sizeof(uint32_t);
469 
470 	/* Record slot control data */
471 	sc->rbank = (struct rec_slot_ctrl_bank *)(va + cb);
472 	YWRITE4(sc, YDS_REC_CTRLBASE, da + cb);
473 	sc->rbankoff = cb;
474 	cb += N_REC_SLOT_CTRL * N_REC_SLOT_CTRL_BANK * rcs;
475 
476 #if 0
477 	/* Effect slot control data -- unused */
478 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, da + cb);
479 	cb += N_EFFECT_SLOT_CTRL * N_EFFECT_SLOT_CTRL_BANK * ecs;
480 #endif
481 
482 	/* Play slot control data */
483 	sc->pbankoff = cb;
484 	for (i=0; i < N_PLAY_SLOT_CTRL; i++) {
485 		sc->pbankp[i*2] = (struct play_slot_ctrl_bank *)(va + cb);
486 		*(sc->ptbl + i+1) = htole32(da + cb);
487 		cb += pcs;
488 
489 		sc->pbankp[i*2+1] = (struct play_slot_ctrl_bank *)(va + cb);
490 		cb += pcs;
491 	}
492 	/* Sync play control data table */
493 	bus_dmamap_sync(sc->sc_dmatag, p->map,
494 			sc->ptbloff, (N_PLAY_SLOT_CTRL+1) * sizeof(uint32_t),
495 			BUS_DMASYNC_PREWRITE);
496 
497 	return 0;
498 }
499 
500 static void
501 yds_enable_dsp(struct yds_softc *sc)
502 {
503 
504 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
505 }
506 
507 static int
508 yds_disable_dsp(struct yds_softc *sc)
509 {
510 	int to;
511 	uint32_t data;
512 
513 	data = YREAD4(sc, YDS_CONFIG);
514 	if (data)
515 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
516 
517 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
518 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
519 			return 0;
520 		delay(1);
521 	}
522 
523 	return 1;
524 }
525 
526 static int
527 yds_match(struct device *parent, struct cfdata *match,
528     void *aux)
529 {
530 	struct pci_attach_args *pa;
531 
532 	pa = (struct pci_attach_args *)aux;
533 	switch (PCI_VENDOR(pa->pa_id)) {
534 	case PCI_VENDOR_YAMAHA:
535 		switch (PCI_PRODUCT(pa->pa_id)) {
536 		case PCI_PRODUCT_YAMAHA_YMF724:
537 		case PCI_PRODUCT_YAMAHA_YMF740:
538 		case PCI_PRODUCT_YAMAHA_YMF740C:
539 		case PCI_PRODUCT_YAMAHA_YMF724F:
540 		case PCI_PRODUCT_YAMAHA_YMF744B:
541 		case PCI_PRODUCT_YAMAHA_YMF754:
542 			return 1;
543 		}
544 		break;
545 	}
546 
547 	return 0;
548 }
549 
550 /*
551  * This routine is called after all the ISA devices are configured,
552  * to avoid conflict.
553  */
554 static void
555 yds_configure_legacy(struct device *arg)
556 #define FLEXIBLE	(sc->sc_flags & YDS_CAP_LEGACY_FLEXIBLE)
557 #define SELECTABLE	(sc->sc_flags & YDS_CAP_LEGACY_SELECTABLE)
558 {
559 	static const bus_addr_t opl_addrs[] = {0x388, 0x398, 0x3A0, 0x3A8};
560 	static const bus_addr_t mpu_addrs[] = {0x330, 0x300, 0x332, 0x334};
561 	struct yds_softc *sc;
562 	pcireg_t reg;
563 	struct device *dev;
564 	int i;
565 
566 	sc = (struct yds_softc*) arg;
567 	if (!FLEXIBLE && !SELECTABLE)
568 		return;
569 
570 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY);
571 	reg &= ~0x8133c03f;	/* these bits are out of interest */
572 	reg |= ((YDS_PCI_EX_LEGACY_IMOD) |
573 		(YDS_PCI_LEGACY_FMEN |
574 		 YDS_PCI_LEGACY_MEN /*| YDS_PCI_LEGACY_MIEN*/));
575 	reg |= YDS_PCI_EX_LEGACY_SMOD_DISABLE;
576 	if (FLEXIBLE) {
577 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
578 		delay(100*1000);
579 	}
580 
581 	/* Look for OPL */
582 	dev = 0;
583 	for (i = 0; i < sizeof(opl_addrs) / sizeof(bus_addr_t); i++) {
584 		if (SELECTABLE) {
585 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
586 				       YDS_PCI_LEGACY, reg | (i << (0+16)));
587 			delay(100*1000);	/* wait 100ms */
588 		} else
589 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
590 				       YDS_PCI_FM_BA, opl_addrs[i]);
591 		if (bus_space_map(sc->sc_opl_iot,
592 				  opl_addrs[i], 4, 0, &sc->sc_opl_ioh) == 0) {
593 			struct audio_attach_args aa;
594 
595 			aa.type = AUDIODEV_TYPE_OPL;
596 			aa.hwif = aa.hdl = NULL;
597 			dev = config_found(&sc->sc_dev, &aa, audioprint);
598 			if (dev == 0)
599 				bus_space_unmap(sc->sc_opl_iot,
600 						sc->sc_opl_ioh, 4);
601 			else {
602 				if (SELECTABLE)
603 					reg |= (i << (0+16));
604 				break;
605 			}
606 		}
607 	}
608 	if (dev == 0) {
609 		reg &= ~YDS_PCI_LEGACY_FMEN;
610 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
611 			       YDS_PCI_LEGACY, reg);
612 	} else {
613 		/* Max. volume */
614 		YWRITE4(sc, YDS_LEGACY_OUT_VOLUME, 0x3fff3fff);
615 		YWRITE4(sc, YDS_LEGACY_REC_VOLUME, 0x3fff3fff);
616 	}
617 
618 	/* Look for MPU */
619 	dev = 0;
620 	for (i = 0; i < sizeof(mpu_addrs) / sizeof(bus_addr_t); i++) {
621 		if (SELECTABLE)
622 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
623 				       YDS_PCI_LEGACY, reg | (i << (4+16)));
624 		else
625 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
626 				       YDS_PCI_MPU_BA, mpu_addrs[i]);
627 		if (bus_space_map(sc->sc_mpu_iot,
628 				  mpu_addrs[i], 2, 0, &sc->sc_mpu_ioh) == 0) {
629 			struct audio_attach_args aa;
630 
631 			aa.type = AUDIODEV_TYPE_MPU;
632 			aa.hwif = aa.hdl = NULL;
633 			dev = config_found(&sc->sc_dev, &aa, audioprint);
634 			if (dev == 0)
635 				bus_space_unmap(sc->sc_mpu_iot,
636 						sc->sc_mpu_ioh, 2);
637 			else {
638 				if (SELECTABLE)
639 					reg |= (i << (4+16));
640 				break;
641 			}
642 		}
643 	}
644 	if (dev == 0) {
645 		reg &= ~(YDS_PCI_LEGACY_MEN | YDS_PCI_LEGACY_MIEN);
646 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
647 	}
648 	sc->sc_mpu = dev;
649 }
650 #undef FLEXIBLE
651 #undef SELECTABLE
652 
653 static int
654 yds_init(struct yds_softc *sc)
655 {
656 	uint32_t reg;
657 
658 	DPRINTF(("yds_init()\n"));
659 
660 	/* Download microcode */
661 	if (yds_download_mcode(sc)) {
662 		printf("%s: download microcode failed\n", sc->sc_dev.dv_xname);
663 		return 1;
664 	}
665 
666 	/* Allocate DMA buffers */
667 	if (yds_allocate_slots(sc)) {
668 		printf("%s: could not allocate slots\n", sc->sc_dev.dv_xname);
669 		return 1;
670 	}
671 
672 	/* Warm reset */
673 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
674 	pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL,
675 		reg | YDS_DSCTRL_WRST);
676 	delay(50000);
677 
678 	return 0;
679 }
680 
681 static bool
682 yds_suspend(device_t dv)
683 {
684 	struct yds_softc *sc = device_private(dv);
685 	pci_chipset_tag_t pc = sc->sc_pc;
686 	pcitag_t tag = sc->sc_pcitag;
687 
688 	sc->sc_dsctrl = pci_conf_read(pc, tag, YDS_PCI_DSCTRL);
689 	sc->sc_legacy = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
690 	sc->sc_ba[0] = pci_conf_read(pc, tag, YDS_PCI_FM_BA);
691 	sc->sc_ba[1] = pci_conf_read(pc, tag, YDS_PCI_MPU_BA);
692 
693 	return true;
694 }
695 
696 static bool
697 yds_resume(device_t dv)
698 {
699 	struct yds_softc *sc = device_private(dv);
700 	pci_chipset_tag_t pc = sc->sc_pc;
701 	pcitag_t tag = sc->sc_pcitag;
702 	pcireg_t reg;
703 
704 	/* Disable legacy mode */
705 	reg = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
706 	pci_conf_write(pc, tag, YDS_PCI_LEGACY, reg & YDS_PCI_LEGACY_LAD);
707 
708 	/* Enable the device. */
709 	reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
710 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
711 		PCI_COMMAND_MASTER_ENABLE);
712 	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, reg);
713 	reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
714 	if (yds_init(sc)) {
715 		aprint_error_dev(dv, "reinitialize failed\n");
716 		return false;
717 	}
718 
719 	pci_conf_write(pc, tag, YDS_PCI_DSCTRL, sc->sc_dsctrl);
720 	sc->sc_codec[0].codec_if->vtbl->restore_ports(sc->sc_codec[0].codec_if);
721 
722 	return true;
723 }
724 
725 static void
726 yds_attach(struct device *parent, struct device *self, void *aux)
727 {
728 	struct yds_softc *sc;
729 	struct pci_attach_args *pa;
730 	pci_chipset_tag_t pc;
731 	char const *intrstr;
732 	pci_intr_handle_t ih;
733 	pcireg_t reg;
734 	struct yds_codec_softc *codec;
735 	char devinfo[256];
736 	int i, r, to;
737 	int revision;
738 	int ac97_id2;
739 
740 	sc = (struct yds_softc *)self;
741 	pa = (struct pci_attach_args *)aux;
742 	pc = pa->pa_pc;
743 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
744 	revision = PCI_REVISION(pa->pa_class);
745 	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
746 
747 	/* Map register to memory */
748 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
749 			   &sc->memt, &sc->memh, NULL, NULL)) {
750 		printf("%s: can't map memory space\n", sc->sc_dev.dv_xname);
751 		return;
752 	}
753 
754 	/* Map and establish the interrupt. */
755 	if (pci_intr_map(pa, &ih)) {
756 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
757 		return;
758 	}
759 	intrstr = pci_intr_string(pc, ih);
760 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc);
761 	if (sc->sc_ih == NULL) {
762 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
763 		if (intrstr != NULL)
764 			printf(" at %s", intrstr);
765 		printf("\n");
766 		return;
767 	}
768 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
769 
770 	sc->sc_dmatag = pa->pa_dmat;
771 	sc->sc_pc = pc;
772 	sc->sc_pcitag = pa->pa_tag;
773 	sc->sc_id = pa->pa_id;
774 	sc->sc_revision = revision;
775 	sc->sc_flags = yds_get_dstype(sc->sc_id);
776 #ifdef AUDIO_DEBUG
777 	if (ydsdebug) {
778 		char bits[80];
779 
780 		printf("%s: chip has %s\n", sc->sc_dev.dv_xname,
781 		       bitmask_snprintf(sc->sc_flags, YDS_CAP_BITS, bits,
782 					sizeof(bits)));
783 	}
784 #endif
785 
786 	/* Disable legacy mode */
787 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_LEGACY);
788 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_LEGACY,
789 		       reg & YDS_PCI_LEGACY_LAD);
790 
791 	/* Enable the device. */
792 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
793 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
794 		PCI_COMMAND_MASTER_ENABLE);
795 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
796 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
797 
798 	/* Mute all volumes */
799 	for (i = 0x80; i < 0xc0; i += 2)
800 		YWRITE2(sc, i, 0);
801 
802 	/* Initialize the device */
803 	if (yds_init(sc)) {
804 		printf("%s: initialize failed\n", sc->sc_dev.dv_xname);
805 		return;
806 	}
807 
808 	/*
809 	 * Detect primary/secondary AC97
810 	 *	YMF754 Hardware Specification Rev 1.01 page 24
811 	 */
812 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
813 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
814 	delay(400000);		/* Needed for 740C. */
815 
816 	/* Primary */
817 	for (to = 0; to < AC97_TIMEOUT; to++) {
818 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
819 			break;
820 		delay(1);
821 	}
822 	if (to == AC97_TIMEOUT) {
823 		printf("%s: no AC97 available\n", sc->sc_dev.dv_xname);
824 		return;
825 	}
826 
827 	/* Secondary */
828 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
829 	ac97_id2 = -1;
830 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
831 		goto detected;
832 #if 0				/* reset secondary... */
833 	YWRITE2(sc, YDS_GPIO_OCTRL,
834 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
835 	YWRITE2(sc, YDS_GPIO_FUNCE,
836 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
837 #endif
838 	for (to = 0; to < AC97_TIMEOUT; to++) {
839 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
840 			break;
841 		delay(1);
842 	}
843 	if (to < AC97_TIMEOUT) {
844 		/* detect id */
845 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
846 			YWRITE2(sc, AC97_CMD_ADDR,
847 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
848 
849 			for (to = 0; to < AC97_TIMEOUT; to++) {
850 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
851 				    == 0)
852 					goto detected;
853 				delay(1);
854 			}
855 		}
856 		if (ac97_id2 == 4)
857 			ac97_id2 = -1;
858 detected:
859 		;
860 	}
861 
862 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_CRST);
863 	delay (20);
864 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
865 	delay (400000);
866 	for (to = 0; to < AC97_TIMEOUT; to++) {
867 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
868 			break;
869 		delay(1);
870 	}
871 
872 	/*
873 	 * Attach ac97 codec
874 	 */
875 	for (i = 0; i < 2; i++) {
876 		static struct {
877 			int data;
878 			int addr;
879 		} statregs[] = {
880 			{AC97_STAT_DATA1, AC97_STAT_ADDR1},
881 			{AC97_STAT_DATA2, AC97_STAT_ADDR2},
882 		};
883 
884 		if (i == 1 && ac97_id2 == -1)
885 			break;		/* secondary ac97 not available */
886 
887 		codec = &sc->sc_codec[i];
888 		memcpy(&codec->sc_dev, &sc->sc_dev, sizeof(codec->sc_dev));
889 		codec->sc = sc;
890 		codec->id = i == 1 ? ac97_id2 : 0;
891 		codec->status_data = statregs[i].data;
892 		codec->status_addr = statregs[i].addr;
893 		codec->host_if.arg = codec;
894 		codec->host_if.attach = yds_attach_codec;
895 		codec->host_if.read = yds_read_codec;
896 		codec->host_if.write = yds_write_codec;
897 		codec->host_if.reset = yds_reset_codec;
898 
899 		if ((r = ac97_attach(&codec->host_if, self)) != 0) {
900 			printf("%s: can't attach codec (error 0x%X)\n",
901 			       sc->sc_dev.dv_xname, r);
902 			return;
903 		}
904 	}
905 
906 	if (0 != auconv_create_encodings(yds_formats, YDS_NFORMATS,
907 					 &sc->sc_encodings))
908 		return;
909 
910 	audio_attach_mi(&yds_hw_if, sc, &sc->sc_dev);
911 
912 	sc->sc_legacy_iot = pa->pa_iot;
913 	config_defer((struct device*) sc, yds_configure_legacy);
914 
915 	if (!pmf_device_register(self, yds_suspend, yds_resume))
916 		aprint_error_dev(self, "couldn't establish power handler\n");
917 }
918 
919 static int
920 yds_attach_codec(void *sc_, struct ac97_codec_if *codec_if)
921 {
922 	struct yds_codec_softc *sc;
923 
924 	sc = sc_;
925 	sc->codec_if = codec_if;
926 	return 0;
927 }
928 
929 static int
930 yds_ready_codec(struct yds_codec_softc *sc)
931 {
932 	int to;
933 
934 	for (to = 0; to < AC97_TIMEOUT; to++) {
935 		if ((YREAD2(sc->sc, sc->status_addr) & AC97_BUSY) == 0)
936 			return 0;
937 		delay(1);
938 	}
939 
940 	return 1;
941 }
942 
943 static int
944 yds_read_codec(void *sc_, uint8_t reg, uint16_t *data)
945 {
946 	struct yds_codec_softc *sc;
947 
948 	sc = sc_;
949 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);
950 
951 	if (yds_ready_codec(sc)) {
952 		printf("%s: yds_read_codec timeout\n",
953 		       sc->sc->sc_dev.dv_xname);
954 		return EIO;
955 	}
956 
957 	if (PCI_PRODUCT(sc->sc->sc_id) == PCI_PRODUCT_YAMAHA_YMF744B &&
958 	    sc->sc->sc_revision < 2) {
959 		int i;
960 		for (i=0; i<600; i++)
961 			(void)YREAD2(sc->sc, sc->status_data);
962 	}
963 
964 	*data = YREAD2(sc->sc, sc->status_data);
965 
966 	return 0;
967 }
968 
969 static int
970 yds_write_codec(void *sc_, uint8_t reg, uint16_t data)
971 {
972 	struct yds_codec_softc *sc;
973 
974 	sc = sc_;
975 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_WRITE | AC97_ID(sc->id) | reg);
976 	YWRITE2(sc->sc, AC97_CMD_DATA, data);
977 
978 	if (yds_ready_codec(sc)) {
979 		printf("%s: yds_write_codec timeout\n",
980 			sc->sc->sc_dev.dv_xname);
981 		return EIO;
982 	}
983 
984 	return 0;
985 }
986 
987 /*
988  * XXX: Must handle the secondary differntly!!
989  */
990 static int
991 yds_reset_codec(void *sc_)
992 {
993 	struct yds_codec_softc *codec;
994 	struct yds_softc *sc;
995 	pcireg_t reg;
996 
997 	codec = sc_;
998 	sc = codec->sc;
999 	/* reset AC97 codec */
1000 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
1001 	if (reg & 0x03) {
1002 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1003 			       YDS_PCI_DSCTRL, reg & ~0x03);
1004 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1005 			       YDS_PCI_DSCTRL, reg | 0x03);
1006 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1007 			       YDS_PCI_DSCTRL, reg & ~0x03);
1008 		delay(50000);
1009 	}
1010 
1011 	yds_ready_codec(sc_);
1012 	return 0;
1013 }
1014 
1015 static int
1016 yds_intr(void *p)
1017 {
1018 	struct yds_softc *sc;
1019 	u_int status;
1020 
1021 	sc = p;
1022 	status = YREAD4(sc, YDS_STATUS);
1023 	DPRINTFN(1, ("yds_intr: status=%08x\n", status));
1024 	if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
1025 #if NMPU > 0
1026 		if (sc->sc_mpu)
1027 			return mpu_intr(sc->sc_mpu);
1028 #endif
1029 		return 0;
1030 	}
1031 
1032 	if (status & YDS_STAT_TINT) {
1033 		YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
1034 		printf ("yds_intr: timeout!\n");
1035 	}
1036 
1037 	if (status & YDS_STAT_INT) {
1038 		int nbank;
1039 
1040 		nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
1041 		/* Clear interrupt flag */
1042 		YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
1043 
1044 		/* Buffer for the next frame is always ready. */
1045 		YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
1046 
1047 		if (sc->sc_play.intr) {
1048 			u_int dma, ccpu, blk, len;
1049 
1050 			/* Sync play slot control data */
1051 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1052 					sc->pbankoff,
1053 					sizeof(struct play_slot_ctrl_bank)*
1054 					    le32toh(*sc->ptbl)*
1055 					    N_PLAY_SLOT_CTRL_BANK,
1056 					BUS_DMASYNC_POSTWRITE|
1057 					BUS_DMASYNC_POSTREAD);
1058 			dma = le32toh(sc->pbankp[nbank]->pgstart) * sc->sc_play.factor;
1059 			ccpu = sc->sc_play.offset;
1060 			blk = sc->sc_play.blksize;
1061 			len = sc->sc_play.length;
1062 
1063 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1064 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1065 				/* We can fill the next block */
1066 				/* Sync ring buffer for previous write */
1067 				bus_dmamap_sync(sc->sc_dmatag,
1068 						sc->sc_play.dma->map,
1069 						ccpu, blk,
1070 						BUS_DMASYNC_POSTWRITE);
1071 				sc->sc_play.intr(sc->sc_play.intr_arg);
1072 				sc->sc_play.offset += blk;
1073 				if (sc->sc_play.offset >= len) {
1074 					sc->sc_play.offset -= len;
1075 #ifdef DIAGNOSTIC
1076 					if (sc->sc_play.offset != 0)
1077 						printf ("Audio ringbuffer botch\n");
1078 #endif
1079 				}
1080 				/* Sync ring buffer for next write */
1081 				bus_dmamap_sync(sc->sc_dmatag,
1082 						sc->sc_play.dma->map,
1083 						ccpu, blk,
1084 						BUS_DMASYNC_PREWRITE);
1085 			}
1086 		}
1087 		if (sc->sc_rec.intr) {
1088 			u_int dma, ccpu, blk, len;
1089 
1090 			/* Sync rec slot control data */
1091 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1092 					sc->rbankoff,
1093 					sizeof(struct rec_slot_ctrl_bank)*
1094 					    N_REC_SLOT_CTRL*
1095 					    N_REC_SLOT_CTRL_BANK,
1096 					BUS_DMASYNC_POSTWRITE|
1097 					BUS_DMASYNC_POSTREAD);
1098 			dma = le32toh(sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr);
1099 			ccpu = sc->sc_rec.offset;
1100 			blk = sc->sc_rec.blksize;
1101 			len = sc->sc_rec.length;
1102 
1103 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1104 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1105 				/* We can drain the current block */
1106 				/* Sync ring buffer first */
1107 				bus_dmamap_sync(sc->sc_dmatag,
1108 						sc->sc_rec.dma->map,
1109 						ccpu, blk,
1110 						BUS_DMASYNC_POSTREAD);
1111 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
1112 				sc->sc_rec.offset += blk;
1113 				if (sc->sc_rec.offset >= len) {
1114 					sc->sc_rec.offset -= len;
1115 #ifdef DIAGNOSTIC
1116 					if (sc->sc_rec.offset != 0)
1117 						printf ("Audio ringbuffer botch\n");
1118 #endif
1119 				}
1120 				/* Sync ring buffer for next read */
1121 				bus_dmamap_sync(sc->sc_dmatag,
1122 						sc->sc_rec.dma->map,
1123 						ccpu, blk,
1124 						BUS_DMASYNC_PREREAD);
1125 			}
1126 		}
1127 	}
1128 
1129 	return 1;
1130 }
1131 
1132 static int
1133 yds_allocmem(struct yds_softc *sc, size_t size, size_t align, struct yds_dma *p)
1134 {
1135 	int error;
1136 
1137 	p->size = size;
1138 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
1139 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
1140 				 &p->nsegs, BUS_DMA_NOWAIT);
1141 	if (error)
1142 		return error;
1143 
1144 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
1145 			       &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
1146 	if (error)
1147 		goto free;
1148 
1149 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
1150 				  0, BUS_DMA_NOWAIT, &p->map);
1151 	if (error)
1152 		goto unmap;
1153 
1154 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
1155 				BUS_DMA_NOWAIT);
1156 	if (error)
1157 		goto destroy;
1158 	return 0;
1159 
1160 destroy:
1161 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1162 unmap:
1163 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1164 free:
1165 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1166 	return error;
1167 }
1168 
1169 static int
1170 yds_freemem(struct yds_softc *sc, struct yds_dma *p)
1171 {
1172 
1173 	bus_dmamap_unload(sc->sc_dmatag, p->map);
1174 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1175 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1176 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1177 	return 0;
1178 }
1179 
1180 static int
1181 yds_open(void *addr, int flags)
1182 {
1183 	struct yds_softc *sc;
1184 	uint32_t mode;
1185 
1186 	sc = addr;
1187 	/* Select bank 0. */
1188 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
1189 
1190 	/* Start the DSP operation. */
1191 	mode = YREAD4(sc, YDS_MODE);
1192 	mode |= YDS_MODE_ACTV;
1193 	mode &= ~YDS_MODE_ACTV2;
1194 	YWRITE4(sc, YDS_MODE, mode);
1195 
1196 	return 0;
1197 }
1198 
1199 /*
1200  * Close function is called at splaudio().
1201  */
1202 static void
1203 yds_close(void *addr)
1204 {
1205 
1206 	yds_halt(addr);
1207 }
1208 
1209 static int
1210 yds_query_encoding(void *addr, struct audio_encoding *fp)
1211 {
1212 	struct yds_softc *sc;
1213 
1214 	sc = addr;
1215 	return auconv_query_encoding(sc->sc_encodings, fp);
1216 }
1217 
1218 static int
1219 yds_set_params(void *addr, int setmode, int usemode,
1220 	       audio_params_t *play, audio_params_t* rec,
1221 	       stream_filter_list_t *pfil, stream_filter_list_t *rfil)
1222 {
1223 	if (setmode & AUMODE_RECORD) {
1224 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1225 					 AUMODE_RECORD, rec, FALSE, rfil) < 0)
1226 			return EINVAL;
1227 	}
1228 	if (setmode & AUMODE_PLAY) {
1229 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1230 					 AUMODE_PLAY, play, FALSE, pfil) < 0)
1231 			return EINVAL;
1232 	}
1233 	return 0;
1234 }
1235 
1236 static int
1237 yds_round_blocksize(void *addr, int blk, int mode,
1238     const audio_params_t *param)
1239 {
1240 
1241 	/*
1242 	 * Block size must be bigger than a frame.
1243 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
1244 	 */
1245 	if (blk < 1024)
1246 		blk = 1024;
1247 
1248 	return blk & ~4;
1249 }
1250 
1251 static uint32_t
1252 yds_get_lpfq(u_int sample_rate)
1253 {
1254 	int i;
1255 	static struct lpfqt {
1256 		u_int rate;
1257 		uint32_t lpfq;
1258 	} lpfqt[] = {
1259 		{8000,  0x32020000},
1260 		{11025, 0x31770000},
1261 		{16000, 0x31390000},
1262 		{22050, 0x31c90000},
1263 		{32000, 0x33d00000},
1264 		{48000, 0x40000000},
1265 		{0, 0}
1266 	};
1267 
1268 	if (sample_rate == 44100)		/* for P44 slot? */
1269 		return 0x370A0000;
1270 
1271 	for (i = 0; lpfqt[i].rate != 0; i++)
1272 		if (sample_rate <= lpfqt[i].rate)
1273 			break;
1274 
1275 	return lpfqt[i].lpfq;
1276 }
1277 
1278 static uint32_t
1279 yds_get_lpfk(u_int sample_rate)
1280 {
1281 	int i;
1282 	static struct lpfkt {
1283 		u_int rate;
1284 		uint32_t lpfk;
1285 	} lpfkt[] = {
1286 		{8000,  0x18b20000},
1287 		{11025, 0x20930000},
1288 		{16000, 0x2b9a0000},
1289 		{22050, 0x35a10000},
1290 		{32000, 0x3eaa0000},
1291 		{48000, 0x40000000},
1292 		{0, 0}
1293 	};
1294 
1295 	if (sample_rate == 44100)		/* for P44 slot? */
1296 		return 0x46460000;
1297 
1298 	for (i = 0; lpfkt[i].rate != 0; i++)
1299 		if (sample_rate <= lpfkt[i].rate)
1300 			break;
1301 
1302 	return lpfkt[i].lpfk;
1303 }
1304 
1305 static int
1306 yds_trigger_output(void *addr, void *start, void *end, int blksize,
1307 		   void (*intr)(void *), void *arg, const audio_params_t *param)
1308 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
1309 {
1310 	struct yds_softc *sc;
1311 	struct yds_dma *p;
1312 	struct play_slot_ctrl_bank *psb;
1313 	const u_int gain = 0x40000000;
1314 	bus_addr_t s;
1315 	size_t l;
1316 	int i;
1317 	int p44, channels;
1318 	uint32_t format;
1319 
1320 	sc = addr;
1321 #ifdef DIAGNOSTIC
1322 	if (sc->sc_play.intr)
1323 		panic("yds_trigger_output: already running");
1324 #endif
1325 
1326 	sc->sc_play.intr = intr;
1327 	sc->sc_play.intr_arg = arg;
1328 	sc->sc_play.offset = 0;
1329 	sc->sc_play.blksize = blksize;
1330 
1331 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
1332 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1333 
1334 	p = yds_find_dma(sc, start);
1335 	if (!p) {
1336 		printf("yds_trigger_output: bad addr %p\n", start);
1337 		return EINVAL;
1338 	}
1339 	sc->sc_play.dma = p;
1340 
1341 #ifdef YDS_USE_P44
1342 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
1343 	if (P44)
1344 		p44 = ((param->sample_rate == 44100) &&
1345 		       (param->channels == 2) &&
1346 		       (param->precision == 16));
1347 	else
1348 #endif
1349 		p44 = 0;
1350 	channels = p44 ? 1 : param->channels;
1351 
1352 	s = DMAADDR(p);
1353 	l = ((char *)end - (char *)start);
1354 	sc->sc_play.length = l;
1355 
1356 	*sc->ptbl = htole32(channels);	/* Num of play */
1357 
1358 	sc->sc_play.factor = 1;
1359 	if (param->channels == 2)
1360 		sc->sc_play.factor *= 2;
1361 	if (param->precision != 8)
1362 		sc->sc_play.factor *= 2;
1363 	l /= sc->sc_play.factor;
1364 
1365 	format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
1366 		  (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
1367 		  (p44 ? PSLT_FORMAT_SRC441 : 0));
1368 
1369 	psb = sc->pbankp[0];
1370 	memset(psb, 0, sizeof(*psb));
1371 	psb->format = htole32(format);
1372 	psb->pgbase = htole32(s);
1373 	psb->pgloopend = htole32(l);
1374 	if (!p44) {
1375 		psb->pgdeltaend = htole32((param->sample_rate * 65536 / 48000) << 12);
1376 		psb->lpfkend = htole32(yds_get_lpfk(param->sample_rate));
1377 		psb->eggainend = htole32(gain);
1378 		psb->lpfq = htole32(yds_get_lpfq(param->sample_rate));
1379 		psb->pgdelta = htole32(psb->pgdeltaend);
1380 		psb->lpfk = htole32(yds_get_lpfk(param->sample_rate));
1381 		psb->eggain = htole32(gain);
1382 	}
1383 
1384 	for (i = 0; i < channels; i++) {
1385 		/* i == 0: left or mono, i == 1: right */
1386 		psb = sc->pbankp[i*2];
1387 		if (i)
1388 			/* copy from left */
1389 			*psb = *(sc->pbankp[0]);
1390 		if (channels == 2) {
1391 			/* stereo */
1392 			if (i == 0) {
1393 				psb->lchgain = psb->lchgainend = htole32(gain);
1394 			} else {
1395 				psb->lchgain = psb->lchgainend = 0;
1396 				psb->rchgain = psb->rchgainend = htole32(gain);
1397 				psb->format |= htole32(PSLT_FORMAT_RCH);
1398 			}
1399 		} else if (!p44) {
1400 			/* mono */
1401 			psb->lchgain = psb->rchgain = htole32(gain);
1402 			psb->lchgainend = psb->rchgainend = htole32(gain);
1403 		}
1404 		/* copy to the other bank */
1405 		*(sc->pbankp[i*2+1]) = *psb;
1406 	}
1407 
1408 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
1409 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
1410 
1411 	if (p44)
1412 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
1413 	else
1414 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
1415 
1416 	/* Now the play slot for the next frame is set up!! */
1417 	/* Sync play slot control data for both directions */
1418 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1419 			sc->ptbloff,
1420 			sizeof(struct play_slot_ctrl_bank) *
1421 			    channels * N_PLAY_SLOT_CTRL_BANK,
1422 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1423 	/* Sync ring buffer */
1424 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1425 			BUS_DMASYNC_PREWRITE);
1426 	/* HERE WE GO!! */
1427 	YWRITE4(sc, YDS_MODE,
1428 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1429 
1430 	return 0;
1431 }
1432 #undef P44
1433 
1434 static int
1435 yds_trigger_input(void *addr, void *start, void *end, int blksize,
1436 		  void (*intr)(void *), void *arg, const audio_params_t *param)
1437 {
1438 	struct yds_softc *sc;
1439 	struct yds_dma *p;
1440 	u_int srate, format;
1441 	struct rec_slot_ctrl_bank *rsb;
1442 	bus_addr_t s;
1443 	size_t l;
1444 
1445 	sc = addr;
1446 #ifdef DIAGNOSTIC
1447 	if (sc->sc_rec.intr)
1448 		panic("yds_trigger_input: already running");
1449 #endif
1450 	sc->sc_rec.intr = intr;
1451 	sc->sc_rec.intr_arg = arg;
1452 	sc->sc_rec.offset = 0;
1453 	sc->sc_rec.blksize = blksize;
1454 
1455 	DPRINTFN(1, ("yds_trigger_input: "
1456 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1457 	    addr, start, end, blksize, intr, arg));
1458 	DPRINTFN(1, (" parameters: rate=%u, precision=%u, channels=%u\n",
1459 	    param->sample_rate, param->precision, param->channels));
1460 
1461 	p = yds_find_dma(sc, start);
1462 	if (!p) {
1463 		printf("yds_trigger_input: bad addr %p\n", start);
1464 		return EINVAL;
1465 	}
1466 	sc->sc_rec.dma = p;
1467 
1468 	s = DMAADDR(p);
1469 	l = ((char *)end - (char *)start);
1470 	sc->sc_rec.length = l;
1471 
1472 	sc->sc_rec.factor = 1;
1473 	if (param->channels == 2)
1474 		sc->sc_rec.factor *= 2;
1475 	if (param->precision != 8)
1476 		sc->sc_rec.factor *= 2;
1477 
1478 	rsb = &sc->rbank[0];
1479 	memset(rsb, 0, sizeof(*rsb));
1480 	rsb->pgbase = htole32(s);
1481 	rsb->pgloopendadr = htole32(l);
1482 	/* Seems all 4 banks must be set up... */
1483 	sc->rbank[1] = *rsb;
1484 	sc->rbank[2] = *rsb;
1485 	sc->rbank[3] = *rsb;
1486 
1487 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
1488 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
1489 	srate = 48000 * 4096 / param->sample_rate - 1;
1490 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
1491 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
1492 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
1493 #ifdef YDS_USE_REC_SLOT
1494 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
1495 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
1496 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
1497 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
1498 	YWRITE4(sc, YDS_REC_FORMAT, format);
1499 #else
1500 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
1501 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
1502 	YWRITE4(sc, YDS_ADC_FORMAT, format);
1503 #endif
1504 	/* Now the rec slot for the next frame is set up!! */
1505 	/* Sync record slot control data */
1506 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1507 			sc->rbankoff,
1508 			sizeof(struct rec_slot_ctrl_bank)*
1509 			    N_REC_SLOT_CTRL*
1510 			    N_REC_SLOT_CTRL_BANK,
1511 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1512 	/* Sync ring buffer */
1513 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1514 			BUS_DMASYNC_PREREAD);
1515 	/* HERE WE GO!! */
1516 	YWRITE4(sc, YDS_MODE,
1517 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1518 
1519 	return 0;
1520 }
1521 
1522 static int
1523 yds_halt(struct yds_softc *sc)
1524 {
1525 	uint32_t mode;
1526 
1527 	/* Stop the DSP operation. */
1528 	mode = YREAD4(sc, YDS_MODE);
1529 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
1530 
1531 	/* Paranoia...  mute all */
1532 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
1533 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
1534 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
1535 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
1536 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
1537 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
1538 
1539 	return 0;
1540 }
1541 
1542 static int
1543 yds_halt_output(void *addr)
1544 {
1545 	struct yds_softc *sc;
1546 
1547 	DPRINTF(("yds: yds_halt_output\n"));
1548 	sc = addr;
1549 	if (sc->sc_play.intr) {
1550 		sc->sc_play.intr = 0;
1551 		/* Sync play slot control data */
1552 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1553 				sc->pbankoff,
1554 				sizeof(struct play_slot_ctrl_bank)*
1555 				    (*sc->ptbl)*N_PLAY_SLOT_CTRL_BANK,
1556 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1557 		/* Stop the play slot operation */
1558 		sc->pbankp[0]->status =
1559 		sc->pbankp[1]->status =
1560 		sc->pbankp[2]->status =
1561 		sc->pbankp[3]->status = 1;
1562 		/* Sync ring buffer */
1563 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
1564 				0, sc->sc_play.length, BUS_DMASYNC_POSTWRITE);
1565 	}
1566 
1567 	return 0;
1568 }
1569 
1570 static int
1571 yds_halt_input(void *addr)
1572 {
1573 	struct yds_softc *sc;
1574 
1575 	DPRINTF(("yds: yds_halt_input\n"));
1576 	sc = addr;
1577 	sc->sc_rec.intr = NULL;
1578 	if (sc->sc_rec.intr) {
1579 		/* Stop the rec slot operation */
1580 		YWRITE4(sc, YDS_MAPOF_REC, 0);
1581 		sc->sc_rec.intr = 0;
1582 		/* Sync rec slot control data */
1583 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1584 				sc->rbankoff,
1585 				sizeof(struct rec_slot_ctrl_bank)*
1586 				    N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK,
1587 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1588 		/* Sync ring buffer */
1589 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
1590 				0, sc->sc_rec.length, BUS_DMASYNC_POSTREAD);
1591 	}
1592 
1593 	return 0;
1594 }
1595 
1596 static int
1597 yds_getdev(void *addr, struct audio_device *retp)
1598 {
1599 
1600 	*retp = yds_device;
1601 	return 0;
1602 }
1603 
1604 static int
1605 yds_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1606 {
1607 	struct yds_softc *sc;
1608 
1609 	sc = addr;
1610 	return sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
1611 	    sc->sc_codec[0].codec_if, cp);
1612 }
1613 
1614 static int
1615 yds_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1616 {
1617 	struct yds_softc *sc;
1618 
1619 	sc = addr;
1620 	return sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
1621 	    sc->sc_codec[0].codec_if, cp);
1622 }
1623 
1624 static int
1625 yds_query_devinfo(void *addr, mixer_devinfo_t *dip)
1626 {
1627 	struct yds_softc *sc;
1628 
1629 	sc = addr;
1630 	return sc->sc_codec[0].codec_if->vtbl->query_devinfo(
1631 	    sc->sc_codec[0].codec_if, dip);
1632 }
1633 
1634 static void *
1635 yds_malloc(void *addr, int direction, size_t size,
1636 	   struct malloc_type *pool, int flags)
1637 {
1638 	struct yds_softc *sc;
1639 	struct yds_dma *p;
1640 	int error;
1641 
1642 	p = malloc(sizeof(*p), pool, flags);
1643 	if (p == NULL)
1644 		return NULL;
1645 	sc = addr;
1646 	error = yds_allocmem(sc, size, 16, p);
1647 	if (error) {
1648 		free(p, pool);
1649 		return NULL;
1650 	}
1651 	p->next = sc->sc_dmas;
1652 	sc->sc_dmas = p;
1653 	return KERNADDR(p);
1654 }
1655 
1656 static void
1657 yds_free(void *addr, void *ptr, struct malloc_type *pool)
1658 {
1659 	struct yds_softc *sc;
1660 	struct yds_dma **pp, *p;
1661 
1662 	sc = addr;
1663 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1664 		if (KERNADDR(p) == ptr) {
1665 			yds_freemem(sc, p);
1666 			*pp = p->next;
1667 			free(p, pool);
1668 			return;
1669 		}
1670 	}
1671 }
1672 
1673 static struct yds_dma *
1674 yds_find_dma(struct yds_softc *sc, void *addr)
1675 {
1676 	struct yds_dma *p;
1677 
1678 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
1679 		continue;
1680 
1681 	return p;
1682 }
1683 
1684 static size_t
1685 yds_round_buffersize(void *addr, int direction, size_t size)
1686 {
1687 
1688 	/*
1689 	 * Buffer size should be at least twice as bigger as a frame.
1690 	 */
1691 	if (size < 1024 * 3)
1692 		size = 1024 * 3;
1693 	return size;
1694 }
1695 
1696 static paddr_t
1697 yds_mappage(void *addr, void *mem, off_t off, int prot)
1698 {
1699 	struct yds_softc *sc;
1700 	struct yds_dma *p;
1701 
1702 	if (off < 0)
1703 		return -1;
1704 	sc = addr;
1705 	p = yds_find_dma(sc, mem);
1706 	if (p == NULL)
1707 		return -1;
1708 	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1709 	    off, prot, BUS_DMA_WAITOK);
1710 }
1711 
1712 static int
1713 yds_get_props(void *addr)
1714 {
1715 
1716 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1717 	    AUDIO_PROP_FULLDUPLEX;
1718 }
1719