xref: /netbsd-src/sys/dev/pci/yds.c (revision 8ac07aec990b9d2e483062509d0a9fa5b4f57cf2)
1 /*	$NetBSD: yds.c,v 1.42 2008/04/10 19:13:38 cegger 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 1.42 2008/04/10 19:13:38 cegger 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 		aprint_error_dev(&sc->sc_dev, "invalid play slot ctrldata %d != %d\n",
427 		       (unsigned int)pcs,
428 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
429 	if (rcs != sizeof(struct rec_slot_ctrl_bank))
430 		aprint_error_dev(&sc->sc_dev, "invalid rec slot ctrldata %d != %d\n",
431 		       (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 			aprint_error_dev(&sc->sc_dev, "couldn't alloc/map DSP DMA buffer, reason %d\n", i);
445 			free(p, M_DEVBUF);
446 			return 1;
447 		}
448 	}
449 	mp = KERNADDR(p);
450 	da = DMAADDR(p);
451 
452 	DPRINTF(("mp:%p, DMA addr:%p\n",
453 		 mp, (void *)sc->sc_ctrldata.map->dm_segs[0].ds_addr));
454 
455 	memset(mp, 0, memsize);
456 
457 	/* Work space */
458 	cb = 0;
459 	va = (uint8_t *)mp;
460 	YWRITE4(sc, YDS_WORK_BASE, da + cb);
461 	cb += ws;
462 
463 	/* Play control data table */
464 	sc->ptbl = (uint32_t *)(va + cb);
465 	sc->ptbloff = cb;
466 	YWRITE4(sc, YDS_PLAY_CTRLBASE, da + cb);
467 	cb += (N_PLAY_SLOT_CTRL + 1) * sizeof(uint32_t);
468 
469 	/* Record slot control data */
470 	sc->rbank = (struct rec_slot_ctrl_bank *)(va + cb);
471 	YWRITE4(sc, YDS_REC_CTRLBASE, da + cb);
472 	sc->rbankoff = cb;
473 	cb += N_REC_SLOT_CTRL * N_REC_SLOT_CTRL_BANK * rcs;
474 
475 #if 0
476 	/* Effect slot control data -- unused */
477 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, da + cb);
478 	cb += N_EFFECT_SLOT_CTRL * N_EFFECT_SLOT_CTRL_BANK * ecs;
479 #endif
480 
481 	/* Play slot control data */
482 	sc->pbankoff = cb;
483 	for (i=0; i < N_PLAY_SLOT_CTRL; i++) {
484 		sc->pbankp[i*2] = (struct play_slot_ctrl_bank *)(va + cb);
485 		*(sc->ptbl + i+1) = htole32(da + cb);
486 		cb += pcs;
487 
488 		sc->pbankp[i*2+1] = (struct play_slot_ctrl_bank *)(va + cb);
489 		cb += pcs;
490 	}
491 	/* Sync play control data table */
492 	bus_dmamap_sync(sc->sc_dmatag, p->map,
493 			sc->ptbloff, (N_PLAY_SLOT_CTRL+1) * sizeof(uint32_t),
494 			BUS_DMASYNC_PREWRITE);
495 
496 	return 0;
497 }
498 
499 static void
500 yds_enable_dsp(struct yds_softc *sc)
501 {
502 
503 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
504 }
505 
506 static int
507 yds_disable_dsp(struct yds_softc *sc)
508 {
509 	int to;
510 	uint32_t data;
511 
512 	data = YREAD4(sc, YDS_CONFIG);
513 	if (data)
514 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
515 
516 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
517 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
518 			return 0;
519 		delay(1);
520 	}
521 
522 	return 1;
523 }
524 
525 static int
526 yds_match(struct device *parent, struct cfdata *match,
527     void *aux)
528 {
529 	struct pci_attach_args *pa;
530 
531 	pa = (struct pci_attach_args *)aux;
532 	switch (PCI_VENDOR(pa->pa_id)) {
533 	case PCI_VENDOR_YAMAHA:
534 		switch (PCI_PRODUCT(pa->pa_id)) {
535 		case PCI_PRODUCT_YAMAHA_YMF724:
536 		case PCI_PRODUCT_YAMAHA_YMF740:
537 		case PCI_PRODUCT_YAMAHA_YMF740C:
538 		case PCI_PRODUCT_YAMAHA_YMF724F:
539 		case PCI_PRODUCT_YAMAHA_YMF744B:
540 		case PCI_PRODUCT_YAMAHA_YMF754:
541 			return 1;
542 		}
543 		break;
544 	}
545 
546 	return 0;
547 }
548 
549 /*
550  * This routine is called after all the ISA devices are configured,
551  * to avoid conflict.
552  */
553 static void
554 yds_configure_legacy(struct device *arg)
555 #define FLEXIBLE	(sc->sc_flags & YDS_CAP_LEGACY_FLEXIBLE)
556 #define SELECTABLE	(sc->sc_flags & YDS_CAP_LEGACY_SELECTABLE)
557 {
558 	static const bus_addr_t opl_addrs[] = {0x388, 0x398, 0x3A0, 0x3A8};
559 	static const bus_addr_t mpu_addrs[] = {0x330, 0x300, 0x332, 0x334};
560 	struct yds_softc *sc;
561 	pcireg_t reg;
562 	struct device *dev;
563 	int i;
564 
565 	sc = (struct yds_softc*) arg;
566 	if (!FLEXIBLE && !SELECTABLE)
567 		return;
568 
569 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY);
570 	reg &= ~0x8133c03f;	/* these bits are out of interest */
571 	reg |= ((YDS_PCI_EX_LEGACY_IMOD) |
572 		(YDS_PCI_LEGACY_FMEN |
573 		 YDS_PCI_LEGACY_MEN /*| YDS_PCI_LEGACY_MIEN*/));
574 	reg |= YDS_PCI_EX_LEGACY_SMOD_DISABLE;
575 	if (FLEXIBLE) {
576 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
577 		delay(100*1000);
578 	}
579 
580 	/* Look for OPL */
581 	dev = 0;
582 	for (i = 0; i < sizeof(opl_addrs) / sizeof(bus_addr_t); i++) {
583 		if (SELECTABLE) {
584 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
585 				       YDS_PCI_LEGACY, reg | (i << (0+16)));
586 			delay(100*1000);	/* wait 100ms */
587 		} else
588 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
589 				       YDS_PCI_FM_BA, opl_addrs[i]);
590 		if (bus_space_map(sc->sc_opl_iot,
591 				  opl_addrs[i], 4, 0, &sc->sc_opl_ioh) == 0) {
592 			struct audio_attach_args aa;
593 
594 			aa.type = AUDIODEV_TYPE_OPL;
595 			aa.hwif = aa.hdl = NULL;
596 			dev = config_found(&sc->sc_dev, &aa, audioprint);
597 			if (dev == 0)
598 				bus_space_unmap(sc->sc_opl_iot,
599 						sc->sc_opl_ioh, 4);
600 			else {
601 				if (SELECTABLE)
602 					reg |= (i << (0+16));
603 				break;
604 			}
605 		}
606 	}
607 	if (dev == 0) {
608 		reg &= ~YDS_PCI_LEGACY_FMEN;
609 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
610 			       YDS_PCI_LEGACY, reg);
611 	} else {
612 		/* Max. volume */
613 		YWRITE4(sc, YDS_LEGACY_OUT_VOLUME, 0x3fff3fff);
614 		YWRITE4(sc, YDS_LEGACY_REC_VOLUME, 0x3fff3fff);
615 	}
616 
617 	/* Look for MPU */
618 	dev = 0;
619 	for (i = 0; i < sizeof(mpu_addrs) / sizeof(bus_addr_t); i++) {
620 		if (SELECTABLE)
621 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
622 				       YDS_PCI_LEGACY, reg | (i << (4+16)));
623 		else
624 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
625 				       YDS_PCI_MPU_BA, mpu_addrs[i]);
626 		if (bus_space_map(sc->sc_mpu_iot,
627 				  mpu_addrs[i], 2, 0, &sc->sc_mpu_ioh) == 0) {
628 			struct audio_attach_args aa;
629 
630 			aa.type = AUDIODEV_TYPE_MPU;
631 			aa.hwif = aa.hdl = NULL;
632 			dev = config_found(&sc->sc_dev, &aa, audioprint);
633 			if (dev == 0)
634 				bus_space_unmap(sc->sc_mpu_iot,
635 						sc->sc_mpu_ioh, 2);
636 			else {
637 				if (SELECTABLE)
638 					reg |= (i << (4+16));
639 				break;
640 			}
641 		}
642 	}
643 	if (dev == 0) {
644 		reg &= ~(YDS_PCI_LEGACY_MEN | YDS_PCI_LEGACY_MIEN);
645 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
646 	}
647 	sc->sc_mpu = dev;
648 }
649 #undef FLEXIBLE
650 #undef SELECTABLE
651 
652 static int
653 yds_init(struct yds_softc *sc)
654 {
655 	uint32_t reg;
656 
657 	DPRINTF(("yds_init()\n"));
658 
659 	/* Download microcode */
660 	if (yds_download_mcode(sc)) {
661 		aprint_error_dev(&sc->sc_dev, "download microcode failed\n");
662 		return 1;
663 	}
664 
665 	/* Allocate DMA buffers */
666 	if (yds_allocate_slots(sc)) {
667 		aprint_error_dev(&sc->sc_dev, "could not allocate slots\n");
668 		return 1;
669 	}
670 
671 	/* Warm reset */
672 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
673 	pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL,
674 		reg | YDS_DSCTRL_WRST);
675 	delay(50000);
676 
677 	return 0;
678 }
679 
680 static bool
681 yds_suspend(device_t dv PMF_FN_ARGS)
682 {
683 	struct yds_softc *sc = device_private(dv);
684 	pci_chipset_tag_t pc = sc->sc_pc;
685 	pcitag_t tag = sc->sc_pcitag;
686 
687 	sc->sc_dsctrl = pci_conf_read(pc, tag, YDS_PCI_DSCTRL);
688 	sc->sc_legacy = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
689 	sc->sc_ba[0] = pci_conf_read(pc, tag, YDS_PCI_FM_BA);
690 	sc->sc_ba[1] = pci_conf_read(pc, tag, YDS_PCI_MPU_BA);
691 
692 	return true;
693 }
694 
695 static bool
696 yds_resume(device_t dv PMF_FN_ARGS)
697 {
698 	struct yds_softc *sc = device_private(dv);
699 	pci_chipset_tag_t pc = sc->sc_pc;
700 	pcitag_t tag = sc->sc_pcitag;
701 	pcireg_t reg;
702 
703 	/* Disable legacy mode */
704 	reg = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
705 	pci_conf_write(pc, tag, YDS_PCI_LEGACY, reg & YDS_PCI_LEGACY_LAD);
706 
707 	/* Enable the device. */
708 	reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
709 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
710 		PCI_COMMAND_MASTER_ENABLE);
711 	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, reg);
712 	reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
713 	if (yds_init(sc)) {
714 		aprint_error_dev(dv, "reinitialize failed\n");
715 		return false;
716 	}
717 
718 	pci_conf_write(pc, tag, YDS_PCI_DSCTRL, sc->sc_dsctrl);
719 	sc->sc_codec[0].codec_if->vtbl->restore_ports(sc->sc_codec[0].codec_if);
720 
721 	return true;
722 }
723 
724 static void
725 yds_attach(struct device *parent, struct device *self, void *aux)
726 {
727 	struct yds_softc *sc;
728 	struct pci_attach_args *pa;
729 	pci_chipset_tag_t pc;
730 	char const *intrstr;
731 	pci_intr_handle_t ih;
732 	pcireg_t reg;
733 	struct yds_codec_softc *codec;
734 	char devinfo[256];
735 	int i, r, to;
736 	int revision;
737 	int ac97_id2;
738 
739 	sc = (struct yds_softc *)self;
740 	pa = (struct pci_attach_args *)aux;
741 	pc = pa->pa_pc;
742 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
743 	revision = PCI_REVISION(pa->pa_class);
744 	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
745 
746 	/* Map register to memory */
747 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
748 			   &sc->memt, &sc->memh, NULL, NULL)) {
749 		aprint_error_dev(&sc->sc_dev, "can't map memory space\n");
750 		return;
751 	}
752 
753 	/* Map and establish the interrupt. */
754 	if (pci_intr_map(pa, &ih)) {
755 		aprint_error_dev(&sc->sc_dev, "couldn't map interrupt\n");
756 		return;
757 	}
758 	intrstr = pci_intr_string(pc, ih);
759 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc);
760 	if (sc->sc_ih == NULL) {
761 		aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt");
762 		if (intrstr != NULL)
763 			printf(" at %s", intrstr);
764 		printf("\n");
765 		return;
766 	}
767 	printf("%s: interrupting at %s\n", device_xname(&sc->sc_dev), intrstr);
768 
769 	sc->sc_dmatag = pa->pa_dmat;
770 	sc->sc_pc = pc;
771 	sc->sc_pcitag = pa->pa_tag;
772 	sc->sc_id = pa->pa_id;
773 	sc->sc_revision = revision;
774 	sc->sc_flags = yds_get_dstype(sc->sc_id);
775 #ifdef AUDIO_DEBUG
776 	if (ydsdebug) {
777 		char bits[80];
778 
779 		printf("%s: chip has %s\n", device_xname(&sc->sc_dev),
780 		       bitmask_snprintf(sc->sc_flags, YDS_CAP_BITS, bits,
781 					sizeof(bits)));
782 	}
783 #endif
784 
785 	/* Disable legacy mode */
786 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_LEGACY);
787 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_LEGACY,
788 		       reg & YDS_PCI_LEGACY_LAD);
789 
790 	/* Enable the device. */
791 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
792 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
793 		PCI_COMMAND_MASTER_ENABLE);
794 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
795 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
796 
797 	/* Mute all volumes */
798 	for (i = 0x80; i < 0xc0; i += 2)
799 		YWRITE2(sc, i, 0);
800 
801 	/* Initialize the device */
802 	if (yds_init(sc)) {
803 		aprint_error_dev(&sc->sc_dev, "initialize failed\n");
804 		return;
805 	}
806 
807 	/*
808 	 * Detect primary/secondary AC97
809 	 *	YMF754 Hardware Specification Rev 1.01 page 24
810 	 */
811 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
812 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
813 	delay(400000);		/* Needed for 740C. */
814 
815 	/* Primary */
816 	for (to = 0; to < AC97_TIMEOUT; to++) {
817 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
818 			break;
819 		delay(1);
820 	}
821 	if (to == AC97_TIMEOUT) {
822 		aprint_error_dev(&sc->sc_dev, "no AC97 available\n");
823 		return;
824 	}
825 
826 	/* Secondary */
827 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
828 	ac97_id2 = -1;
829 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
830 		goto detected;
831 #if 0				/* reset secondary... */
832 	YWRITE2(sc, YDS_GPIO_OCTRL,
833 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
834 	YWRITE2(sc, YDS_GPIO_FUNCE,
835 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
836 #endif
837 	for (to = 0; to < AC97_TIMEOUT; to++) {
838 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
839 			break;
840 		delay(1);
841 	}
842 	if (to < AC97_TIMEOUT) {
843 		/* detect id */
844 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
845 			YWRITE2(sc, AC97_CMD_ADDR,
846 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
847 
848 			for (to = 0; to < AC97_TIMEOUT; to++) {
849 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
850 				    == 0)
851 					goto detected;
852 				delay(1);
853 			}
854 		}
855 		if (ac97_id2 == 4)
856 			ac97_id2 = -1;
857 detected:
858 		;
859 	}
860 
861 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_CRST);
862 	delay (20);
863 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
864 	delay (400000);
865 	for (to = 0; to < AC97_TIMEOUT; to++) {
866 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
867 			break;
868 		delay(1);
869 	}
870 
871 	/*
872 	 * Attach ac97 codec
873 	 */
874 	for (i = 0; i < 2; i++) {
875 		static struct {
876 			int data;
877 			int addr;
878 		} statregs[] = {
879 			{AC97_STAT_DATA1, AC97_STAT_ADDR1},
880 			{AC97_STAT_DATA2, AC97_STAT_ADDR2},
881 		};
882 
883 		if (i == 1 && ac97_id2 == -1)
884 			break;		/* secondary ac97 not available */
885 
886 		codec = &sc->sc_codec[i];
887 		memcpy(&codec->sc_dev, &sc->sc_dev, sizeof(codec->sc_dev));
888 		codec->sc = sc;
889 		codec->id = i == 1 ? ac97_id2 : 0;
890 		codec->status_data = statregs[i].data;
891 		codec->status_addr = statregs[i].addr;
892 		codec->host_if.arg = codec;
893 		codec->host_if.attach = yds_attach_codec;
894 		codec->host_if.read = yds_read_codec;
895 		codec->host_if.write = yds_write_codec;
896 		codec->host_if.reset = yds_reset_codec;
897 
898 		if ((r = ac97_attach(&codec->host_if, self)) != 0) {
899 			aprint_error_dev(&sc->sc_dev, "can't attach codec (error 0x%X)\n", r);
900 			return;
901 		}
902 	}
903 
904 	if (0 != auconv_create_encodings(yds_formats, YDS_NFORMATS,
905 					 &sc->sc_encodings))
906 		return;
907 
908 	audio_attach_mi(&yds_hw_if, sc, &sc->sc_dev);
909 
910 	sc->sc_legacy_iot = pa->pa_iot;
911 	config_defer((struct device*) sc, yds_configure_legacy);
912 
913 	if (!pmf_device_register(self, yds_suspend, yds_resume))
914 		aprint_error_dev(self, "couldn't establish power handler\n");
915 }
916 
917 static int
918 yds_attach_codec(void *sc_, struct ac97_codec_if *codec_if)
919 {
920 	struct yds_codec_softc *sc;
921 
922 	sc = sc_;
923 	sc->codec_if = codec_if;
924 	return 0;
925 }
926 
927 static int
928 yds_ready_codec(struct yds_codec_softc *sc)
929 {
930 	int to;
931 
932 	for (to = 0; to < AC97_TIMEOUT; to++) {
933 		if ((YREAD2(sc->sc, sc->status_addr) & AC97_BUSY) == 0)
934 			return 0;
935 		delay(1);
936 	}
937 
938 	return 1;
939 }
940 
941 static int
942 yds_read_codec(void *sc_, uint8_t reg, uint16_t *data)
943 {
944 	struct yds_codec_softc *sc;
945 
946 	sc = sc_;
947 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);
948 
949 	if (yds_ready_codec(sc)) {
950 		aprint_error_dev(&sc->sc->sc_dev, "yds_read_codec timeout\n");
951 		return EIO;
952 	}
953 
954 	if (PCI_PRODUCT(sc->sc->sc_id) == PCI_PRODUCT_YAMAHA_YMF744B &&
955 	    sc->sc->sc_revision < 2) {
956 		int i;
957 		for (i=0; i<600; i++)
958 			(void)YREAD2(sc->sc, sc->status_data);
959 	}
960 
961 	*data = YREAD2(sc->sc, sc->status_data);
962 
963 	return 0;
964 }
965 
966 static int
967 yds_write_codec(void *sc_, uint8_t reg, uint16_t data)
968 {
969 	struct yds_codec_softc *sc;
970 
971 	sc = sc_;
972 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_WRITE | AC97_ID(sc->id) | reg);
973 	YWRITE2(sc->sc, AC97_CMD_DATA, data);
974 
975 	if (yds_ready_codec(sc)) {
976 		aprint_error_dev(&sc->sc->sc_dev, "yds_write_codec timeout\n");
977 		return EIO;
978 	}
979 
980 	return 0;
981 }
982 
983 /*
984  * XXX: Must handle the secondary differntly!!
985  */
986 static int
987 yds_reset_codec(void *sc_)
988 {
989 	struct yds_codec_softc *codec;
990 	struct yds_softc *sc;
991 	pcireg_t reg;
992 
993 	codec = sc_;
994 	sc = codec->sc;
995 	/* reset AC97 codec */
996 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
997 	if (reg & 0x03) {
998 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
999 			       YDS_PCI_DSCTRL, reg & ~0x03);
1000 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1001 			       YDS_PCI_DSCTRL, reg | 0x03);
1002 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1003 			       YDS_PCI_DSCTRL, reg & ~0x03);
1004 		delay(50000);
1005 	}
1006 
1007 	yds_ready_codec(sc_);
1008 	return 0;
1009 }
1010 
1011 static int
1012 yds_intr(void *p)
1013 {
1014 	struct yds_softc *sc = p;
1015 #if NMPU > 0
1016 	struct mpu_softc *sc_mpu = device_private(sc->sc_mpu);
1017 #endif
1018 	u_int status;
1019 
1020 	status = YREAD4(sc, YDS_STATUS);
1021 	DPRINTFN(1, ("yds_intr: status=%08x\n", status));
1022 	if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
1023 #if NMPU > 0
1024 		if (sc_mpu)
1025 			return mpu_intr(sc_mpu);
1026 #endif
1027 		return 0;
1028 	}
1029 
1030 	if (status & YDS_STAT_TINT) {
1031 		YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
1032 		printf ("yds_intr: timeout!\n");
1033 	}
1034 
1035 	if (status & YDS_STAT_INT) {
1036 		int nbank;
1037 
1038 		nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
1039 		/* Clear interrupt flag */
1040 		YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
1041 
1042 		/* Buffer for the next frame is always ready. */
1043 		YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
1044 
1045 		if (sc->sc_play.intr) {
1046 			u_int dma, ccpu, blk, len;
1047 
1048 			/* Sync play slot control data */
1049 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1050 					sc->pbankoff,
1051 					sizeof(struct play_slot_ctrl_bank)*
1052 					    le32toh(*sc->ptbl)*
1053 					    N_PLAY_SLOT_CTRL_BANK,
1054 					BUS_DMASYNC_POSTWRITE|
1055 					BUS_DMASYNC_POSTREAD);
1056 			dma = le32toh(sc->pbankp[nbank]->pgstart) * sc->sc_play.factor;
1057 			ccpu = sc->sc_play.offset;
1058 			blk = sc->sc_play.blksize;
1059 			len = sc->sc_play.length;
1060 
1061 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1062 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1063 				/* We can fill the next block */
1064 				/* Sync ring buffer for previous write */
1065 				bus_dmamap_sync(sc->sc_dmatag,
1066 						sc->sc_play.dma->map,
1067 						ccpu, blk,
1068 						BUS_DMASYNC_POSTWRITE);
1069 				sc->sc_play.intr(sc->sc_play.intr_arg);
1070 				sc->sc_play.offset += blk;
1071 				if (sc->sc_play.offset >= len) {
1072 					sc->sc_play.offset -= len;
1073 #ifdef DIAGNOSTIC
1074 					if (sc->sc_play.offset != 0)
1075 						printf ("Audio ringbuffer botch\n");
1076 #endif
1077 				}
1078 				/* Sync ring buffer for next write */
1079 				bus_dmamap_sync(sc->sc_dmatag,
1080 						sc->sc_play.dma->map,
1081 						ccpu, blk,
1082 						BUS_DMASYNC_PREWRITE);
1083 			}
1084 		}
1085 		if (sc->sc_rec.intr) {
1086 			u_int dma, ccpu, blk, len;
1087 
1088 			/* Sync rec slot control data */
1089 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1090 					sc->rbankoff,
1091 					sizeof(struct rec_slot_ctrl_bank)*
1092 					    N_REC_SLOT_CTRL*
1093 					    N_REC_SLOT_CTRL_BANK,
1094 					BUS_DMASYNC_POSTWRITE|
1095 					BUS_DMASYNC_POSTREAD);
1096 			dma = le32toh(sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr);
1097 			ccpu = sc->sc_rec.offset;
1098 			blk = sc->sc_rec.blksize;
1099 			len = sc->sc_rec.length;
1100 
1101 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1102 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1103 				/* We can drain the current block */
1104 				/* Sync ring buffer first */
1105 				bus_dmamap_sync(sc->sc_dmatag,
1106 						sc->sc_rec.dma->map,
1107 						ccpu, blk,
1108 						BUS_DMASYNC_POSTREAD);
1109 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
1110 				sc->sc_rec.offset += blk;
1111 				if (sc->sc_rec.offset >= len) {
1112 					sc->sc_rec.offset -= len;
1113 #ifdef DIAGNOSTIC
1114 					if (sc->sc_rec.offset != 0)
1115 						printf ("Audio ringbuffer botch\n");
1116 #endif
1117 				}
1118 				/* Sync ring buffer for next read */
1119 				bus_dmamap_sync(sc->sc_dmatag,
1120 						sc->sc_rec.dma->map,
1121 						ccpu, blk,
1122 						BUS_DMASYNC_PREREAD);
1123 			}
1124 		}
1125 	}
1126 
1127 	return 1;
1128 }
1129 
1130 static int
1131 yds_allocmem(struct yds_softc *sc, size_t size, size_t align, struct yds_dma *p)
1132 {
1133 	int error;
1134 
1135 	p->size = size;
1136 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
1137 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
1138 				 &p->nsegs, BUS_DMA_NOWAIT);
1139 	if (error)
1140 		return error;
1141 
1142 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
1143 			       &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
1144 	if (error)
1145 		goto free;
1146 
1147 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
1148 				  0, BUS_DMA_NOWAIT, &p->map);
1149 	if (error)
1150 		goto unmap;
1151 
1152 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
1153 				BUS_DMA_NOWAIT);
1154 	if (error)
1155 		goto destroy;
1156 	return 0;
1157 
1158 destroy:
1159 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1160 unmap:
1161 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1162 free:
1163 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1164 	return error;
1165 }
1166 
1167 static int
1168 yds_freemem(struct yds_softc *sc, struct yds_dma *p)
1169 {
1170 
1171 	bus_dmamap_unload(sc->sc_dmatag, p->map);
1172 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1173 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1174 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1175 	return 0;
1176 }
1177 
1178 static int
1179 yds_open(void *addr, int flags)
1180 {
1181 	struct yds_softc *sc;
1182 	uint32_t mode;
1183 
1184 	sc = addr;
1185 	/* Select bank 0. */
1186 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
1187 
1188 	/* Start the DSP operation. */
1189 	mode = YREAD4(sc, YDS_MODE);
1190 	mode |= YDS_MODE_ACTV;
1191 	mode &= ~YDS_MODE_ACTV2;
1192 	YWRITE4(sc, YDS_MODE, mode);
1193 
1194 	return 0;
1195 }
1196 
1197 /*
1198  * Close function is called at splaudio().
1199  */
1200 static void
1201 yds_close(void *addr)
1202 {
1203 
1204 	yds_halt(addr);
1205 }
1206 
1207 static int
1208 yds_query_encoding(void *addr, struct audio_encoding *fp)
1209 {
1210 	struct yds_softc *sc;
1211 
1212 	sc = addr;
1213 	return auconv_query_encoding(sc->sc_encodings, fp);
1214 }
1215 
1216 static int
1217 yds_set_params(void *addr, int setmode, int usemode,
1218 	       audio_params_t *play, audio_params_t* rec,
1219 	       stream_filter_list_t *pfil, stream_filter_list_t *rfil)
1220 {
1221 	if (setmode & AUMODE_RECORD) {
1222 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1223 					 AUMODE_RECORD, rec, FALSE, rfil) < 0)
1224 			return EINVAL;
1225 	}
1226 	if (setmode & AUMODE_PLAY) {
1227 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1228 					 AUMODE_PLAY, play, FALSE, pfil) < 0)
1229 			return EINVAL;
1230 	}
1231 	return 0;
1232 }
1233 
1234 static int
1235 yds_round_blocksize(void *addr, int blk, int mode,
1236     const audio_params_t *param)
1237 {
1238 
1239 	/*
1240 	 * Block size must be bigger than a frame.
1241 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
1242 	 */
1243 	if (blk < 1024)
1244 		blk = 1024;
1245 
1246 	return blk & ~4;
1247 }
1248 
1249 static uint32_t
1250 yds_get_lpfq(u_int sample_rate)
1251 {
1252 	int i;
1253 	static struct lpfqt {
1254 		u_int rate;
1255 		uint32_t lpfq;
1256 	} lpfqt[] = {
1257 		{8000,  0x32020000},
1258 		{11025, 0x31770000},
1259 		{16000, 0x31390000},
1260 		{22050, 0x31c90000},
1261 		{32000, 0x33d00000},
1262 		{48000, 0x40000000},
1263 		{0, 0}
1264 	};
1265 
1266 	if (sample_rate == 44100)		/* for P44 slot? */
1267 		return 0x370A0000;
1268 
1269 	for (i = 0; lpfqt[i].rate != 0; i++)
1270 		if (sample_rate <= lpfqt[i].rate)
1271 			break;
1272 
1273 	return lpfqt[i].lpfq;
1274 }
1275 
1276 static uint32_t
1277 yds_get_lpfk(u_int sample_rate)
1278 {
1279 	int i;
1280 	static struct lpfkt {
1281 		u_int rate;
1282 		uint32_t lpfk;
1283 	} lpfkt[] = {
1284 		{8000,  0x18b20000},
1285 		{11025, 0x20930000},
1286 		{16000, 0x2b9a0000},
1287 		{22050, 0x35a10000},
1288 		{32000, 0x3eaa0000},
1289 		{48000, 0x40000000},
1290 		{0, 0}
1291 	};
1292 
1293 	if (sample_rate == 44100)		/* for P44 slot? */
1294 		return 0x46460000;
1295 
1296 	for (i = 0; lpfkt[i].rate != 0; i++)
1297 		if (sample_rate <= lpfkt[i].rate)
1298 			break;
1299 
1300 	return lpfkt[i].lpfk;
1301 }
1302 
1303 static int
1304 yds_trigger_output(void *addr, void *start, void *end, int blksize,
1305 		   void (*intr)(void *), void *arg, const audio_params_t *param)
1306 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
1307 {
1308 	struct yds_softc *sc;
1309 	struct yds_dma *p;
1310 	struct play_slot_ctrl_bank *psb;
1311 	const u_int gain = 0x40000000;
1312 	bus_addr_t s;
1313 	size_t l;
1314 	int i;
1315 	int p44, channels;
1316 	uint32_t format;
1317 
1318 	sc = addr;
1319 #ifdef DIAGNOSTIC
1320 	if (sc->sc_play.intr)
1321 		panic("yds_trigger_output: already running");
1322 #endif
1323 
1324 	sc->sc_play.intr = intr;
1325 	sc->sc_play.intr_arg = arg;
1326 	sc->sc_play.offset = 0;
1327 	sc->sc_play.blksize = blksize;
1328 
1329 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
1330 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1331 
1332 	p = yds_find_dma(sc, start);
1333 	if (!p) {
1334 		printf("yds_trigger_output: bad addr %p\n", start);
1335 		return EINVAL;
1336 	}
1337 	sc->sc_play.dma = p;
1338 
1339 #ifdef YDS_USE_P44
1340 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
1341 	if (P44)
1342 		p44 = ((param->sample_rate == 44100) &&
1343 		       (param->channels == 2) &&
1344 		       (param->precision == 16));
1345 	else
1346 #endif
1347 		p44 = 0;
1348 	channels = p44 ? 1 : param->channels;
1349 
1350 	s = DMAADDR(p);
1351 	l = ((char *)end - (char *)start);
1352 	sc->sc_play.length = l;
1353 
1354 	*sc->ptbl = htole32(channels);	/* Num of play */
1355 
1356 	sc->sc_play.factor = 1;
1357 	if (param->channels == 2)
1358 		sc->sc_play.factor *= 2;
1359 	if (param->precision != 8)
1360 		sc->sc_play.factor *= 2;
1361 	l /= sc->sc_play.factor;
1362 
1363 	format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
1364 		  (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
1365 		  (p44 ? PSLT_FORMAT_SRC441 : 0));
1366 
1367 	psb = sc->pbankp[0];
1368 	memset(psb, 0, sizeof(*psb));
1369 	psb->format = htole32(format);
1370 	psb->pgbase = htole32(s);
1371 	psb->pgloopend = htole32(l);
1372 	if (!p44) {
1373 		psb->pgdeltaend = htole32((param->sample_rate * 65536 / 48000) << 12);
1374 		psb->lpfkend = htole32(yds_get_lpfk(param->sample_rate));
1375 		psb->eggainend = htole32(gain);
1376 		psb->lpfq = htole32(yds_get_lpfq(param->sample_rate));
1377 		psb->pgdelta = htole32(psb->pgdeltaend);
1378 		psb->lpfk = htole32(yds_get_lpfk(param->sample_rate));
1379 		psb->eggain = htole32(gain);
1380 	}
1381 
1382 	for (i = 0; i < channels; i++) {
1383 		/* i == 0: left or mono, i == 1: right */
1384 		psb = sc->pbankp[i*2];
1385 		if (i)
1386 			/* copy from left */
1387 			*psb = *(sc->pbankp[0]);
1388 		if (channels == 2) {
1389 			/* stereo */
1390 			if (i == 0) {
1391 				psb->lchgain = psb->lchgainend = htole32(gain);
1392 			} else {
1393 				psb->lchgain = psb->lchgainend = 0;
1394 				psb->rchgain = psb->rchgainend = htole32(gain);
1395 				psb->format |= htole32(PSLT_FORMAT_RCH);
1396 			}
1397 		} else if (!p44) {
1398 			/* mono */
1399 			psb->lchgain = psb->rchgain = htole32(gain);
1400 			psb->lchgainend = psb->rchgainend = htole32(gain);
1401 		}
1402 		/* copy to the other bank */
1403 		*(sc->pbankp[i*2+1]) = *psb;
1404 	}
1405 
1406 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
1407 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
1408 
1409 	if (p44)
1410 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
1411 	else
1412 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
1413 
1414 	/* Now the play slot for the next frame is set up!! */
1415 	/* Sync play slot control data for both directions */
1416 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1417 			sc->ptbloff,
1418 			sizeof(struct play_slot_ctrl_bank) *
1419 			    channels * N_PLAY_SLOT_CTRL_BANK,
1420 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1421 	/* Sync ring buffer */
1422 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1423 			BUS_DMASYNC_PREWRITE);
1424 	/* HERE WE GO!! */
1425 	YWRITE4(sc, YDS_MODE,
1426 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1427 
1428 	return 0;
1429 }
1430 #undef P44
1431 
1432 static int
1433 yds_trigger_input(void *addr, void *start, void *end, int blksize,
1434 		  void (*intr)(void *), void *arg, const audio_params_t *param)
1435 {
1436 	struct yds_softc *sc;
1437 	struct yds_dma *p;
1438 	u_int srate, format;
1439 	struct rec_slot_ctrl_bank *rsb;
1440 	bus_addr_t s;
1441 	size_t l;
1442 
1443 	sc = addr;
1444 #ifdef DIAGNOSTIC
1445 	if (sc->sc_rec.intr)
1446 		panic("yds_trigger_input: already running");
1447 #endif
1448 	sc->sc_rec.intr = intr;
1449 	sc->sc_rec.intr_arg = arg;
1450 	sc->sc_rec.offset = 0;
1451 	sc->sc_rec.blksize = blksize;
1452 
1453 	DPRINTFN(1, ("yds_trigger_input: "
1454 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1455 	    addr, start, end, blksize, intr, arg));
1456 	DPRINTFN(1, (" parameters: rate=%u, precision=%u, channels=%u\n",
1457 	    param->sample_rate, param->precision, param->channels));
1458 
1459 	p = yds_find_dma(sc, start);
1460 	if (!p) {
1461 		printf("yds_trigger_input: bad addr %p\n", start);
1462 		return EINVAL;
1463 	}
1464 	sc->sc_rec.dma = p;
1465 
1466 	s = DMAADDR(p);
1467 	l = ((char *)end - (char *)start);
1468 	sc->sc_rec.length = l;
1469 
1470 	sc->sc_rec.factor = 1;
1471 	if (param->channels == 2)
1472 		sc->sc_rec.factor *= 2;
1473 	if (param->precision != 8)
1474 		sc->sc_rec.factor *= 2;
1475 
1476 	rsb = &sc->rbank[0];
1477 	memset(rsb, 0, sizeof(*rsb));
1478 	rsb->pgbase = htole32(s);
1479 	rsb->pgloopendadr = htole32(l);
1480 	/* Seems all 4 banks must be set up... */
1481 	sc->rbank[1] = *rsb;
1482 	sc->rbank[2] = *rsb;
1483 	sc->rbank[3] = *rsb;
1484 
1485 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
1486 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
1487 	srate = 48000 * 4096 / param->sample_rate - 1;
1488 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
1489 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
1490 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
1491 #ifdef YDS_USE_REC_SLOT
1492 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
1493 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
1494 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
1495 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
1496 	YWRITE4(sc, YDS_REC_FORMAT, format);
1497 #else
1498 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
1499 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
1500 	YWRITE4(sc, YDS_ADC_FORMAT, format);
1501 #endif
1502 	/* Now the rec slot for the next frame is set up!! */
1503 	/* Sync record slot control data */
1504 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1505 			sc->rbankoff,
1506 			sizeof(struct rec_slot_ctrl_bank)*
1507 			    N_REC_SLOT_CTRL*
1508 			    N_REC_SLOT_CTRL_BANK,
1509 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1510 	/* Sync ring buffer */
1511 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1512 			BUS_DMASYNC_PREREAD);
1513 	/* HERE WE GO!! */
1514 	YWRITE4(sc, YDS_MODE,
1515 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1516 
1517 	return 0;
1518 }
1519 
1520 static int
1521 yds_halt(struct yds_softc *sc)
1522 {
1523 	uint32_t mode;
1524 
1525 	/* Stop the DSP operation. */
1526 	mode = YREAD4(sc, YDS_MODE);
1527 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
1528 
1529 	/* Paranoia...  mute all */
1530 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
1531 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
1532 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
1533 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
1534 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
1535 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
1536 
1537 	return 0;
1538 }
1539 
1540 static int
1541 yds_halt_output(void *addr)
1542 {
1543 	struct yds_softc *sc;
1544 
1545 	DPRINTF(("yds: yds_halt_output\n"));
1546 	sc = addr;
1547 	if (sc->sc_play.intr) {
1548 		sc->sc_play.intr = 0;
1549 		/* Sync play slot control data */
1550 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1551 				sc->pbankoff,
1552 				sizeof(struct play_slot_ctrl_bank)*
1553 				    (*sc->ptbl)*N_PLAY_SLOT_CTRL_BANK,
1554 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1555 		/* Stop the play slot operation */
1556 		sc->pbankp[0]->status =
1557 		sc->pbankp[1]->status =
1558 		sc->pbankp[2]->status =
1559 		sc->pbankp[3]->status = 1;
1560 		/* Sync ring buffer */
1561 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
1562 				0, sc->sc_play.length, BUS_DMASYNC_POSTWRITE);
1563 	}
1564 
1565 	return 0;
1566 }
1567 
1568 static int
1569 yds_halt_input(void *addr)
1570 {
1571 	struct yds_softc *sc;
1572 
1573 	DPRINTF(("yds: yds_halt_input\n"));
1574 	sc = addr;
1575 	sc->sc_rec.intr = NULL;
1576 	if (sc->sc_rec.intr) {
1577 		/* Stop the rec slot operation */
1578 		YWRITE4(sc, YDS_MAPOF_REC, 0);
1579 		sc->sc_rec.intr = 0;
1580 		/* Sync rec slot control data */
1581 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1582 				sc->rbankoff,
1583 				sizeof(struct rec_slot_ctrl_bank)*
1584 				    N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK,
1585 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1586 		/* Sync ring buffer */
1587 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
1588 				0, sc->sc_rec.length, BUS_DMASYNC_POSTREAD);
1589 	}
1590 
1591 	return 0;
1592 }
1593 
1594 static int
1595 yds_getdev(void *addr, struct audio_device *retp)
1596 {
1597 
1598 	*retp = yds_device;
1599 	return 0;
1600 }
1601 
1602 static int
1603 yds_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1604 {
1605 	struct yds_softc *sc;
1606 
1607 	sc = addr;
1608 	return sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
1609 	    sc->sc_codec[0].codec_if, cp);
1610 }
1611 
1612 static int
1613 yds_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1614 {
1615 	struct yds_softc *sc;
1616 
1617 	sc = addr;
1618 	return sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
1619 	    sc->sc_codec[0].codec_if, cp);
1620 }
1621 
1622 static int
1623 yds_query_devinfo(void *addr, mixer_devinfo_t *dip)
1624 {
1625 	struct yds_softc *sc;
1626 
1627 	sc = addr;
1628 	return sc->sc_codec[0].codec_if->vtbl->query_devinfo(
1629 	    sc->sc_codec[0].codec_if, dip);
1630 }
1631 
1632 static void *
1633 yds_malloc(void *addr, int direction, size_t size,
1634 	   struct malloc_type *pool, int flags)
1635 {
1636 	struct yds_softc *sc;
1637 	struct yds_dma *p;
1638 	int error;
1639 
1640 	p = malloc(sizeof(*p), pool, flags);
1641 	if (p == NULL)
1642 		return NULL;
1643 	sc = addr;
1644 	error = yds_allocmem(sc, size, 16, p);
1645 	if (error) {
1646 		free(p, pool);
1647 		return NULL;
1648 	}
1649 	p->next = sc->sc_dmas;
1650 	sc->sc_dmas = p;
1651 	return KERNADDR(p);
1652 }
1653 
1654 static void
1655 yds_free(void *addr, void *ptr, struct malloc_type *pool)
1656 {
1657 	struct yds_softc *sc;
1658 	struct yds_dma **pp, *p;
1659 
1660 	sc = addr;
1661 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1662 		if (KERNADDR(p) == ptr) {
1663 			yds_freemem(sc, p);
1664 			*pp = p->next;
1665 			free(p, pool);
1666 			return;
1667 		}
1668 	}
1669 }
1670 
1671 static struct yds_dma *
1672 yds_find_dma(struct yds_softc *sc, void *addr)
1673 {
1674 	struct yds_dma *p;
1675 
1676 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
1677 		continue;
1678 
1679 	return p;
1680 }
1681 
1682 static size_t
1683 yds_round_buffersize(void *addr, int direction, size_t size)
1684 {
1685 
1686 	/*
1687 	 * Buffer size should be at least twice as bigger as a frame.
1688 	 */
1689 	if (size < 1024 * 3)
1690 		size = 1024 * 3;
1691 	return size;
1692 }
1693 
1694 static paddr_t
1695 yds_mappage(void *addr, void *mem, off_t off, int prot)
1696 {
1697 	struct yds_softc *sc;
1698 	struct yds_dma *p;
1699 
1700 	if (off < 0)
1701 		return -1;
1702 	sc = addr;
1703 	p = yds_find_dma(sc, mem);
1704 	if (p == NULL)
1705 		return -1;
1706 	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1707 	    off, prot, BUS_DMA_WAITOK);
1708 }
1709 
1710 static int
1711 yds_get_props(void *addr)
1712 {
1713 
1714 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1715 	    AUDIO_PROP_FULLDUPLEX;
1716 }
1717