xref: /netbsd-src/sys/dev/pci/yds.c (revision ce2c90c7c172d95d2402a5b3d96d8f8e6d138a21)
1 /*	$NetBSD: yds.c,v 1.36 2006/10/12 01:31:33 christos 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 1.36 2006/10/12 01:31:33 christos 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 <machine/bus.h>
67 #include <machine/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 static void	yds_powerhook(int, void *);
196 
197 #ifdef AUDIO_DEBUG
198 static void	yds_dump_play_slot(struct yds_softc *, int);
199 #define	YDS_DUMP_PLAY_SLOT(n, sc, bank) \
200 	if (ydsdebug > (n)) yds_dump_play_slot(sc, bank)
201 #else
202 #define	YDS_DUMP_PLAY_SLOT(n, sc, bank)
203 #endif /* AUDIO_DEBUG */
204 
205 static const struct audio_hw_if yds_hw_if = {
206 	yds_open,
207 	yds_close,
208 	NULL,
209 	yds_query_encoding,
210 	yds_set_params,
211 	yds_round_blocksize,
212 	NULL,
213 	NULL,
214 	NULL,
215 	NULL,
216 	NULL,
217 	yds_halt_output,
218 	yds_halt_input,
219 	NULL,
220 	yds_getdev,
221 	NULL,
222 	yds_mixer_set_port,
223 	yds_mixer_get_port,
224 	yds_query_devinfo,
225 	yds_malloc,
226 	yds_free,
227 	yds_round_buffersize,
228 	yds_mappage,
229 	yds_get_props,
230 	yds_trigger_output,
231 	yds_trigger_input,
232 	NULL,
233 	NULL,	/* powerstate */
234 };
235 
236 static const struct audio_device yds_device = {
237 	"Yamaha DS-1",
238 	"",
239 	"yds"
240 };
241 
242 static const struct {
243 	uint	id;
244 	u_int	flags;
245 #define YDS_CAP_MCODE_1			0x0001
246 #define YDS_CAP_MCODE_1E		0x0002
247 #define YDS_CAP_LEGACY_SELECTABLE	0x0004
248 #define YDS_CAP_LEGACY_FLEXIBLE		0x0008
249 #define YDS_CAP_HAS_P44			0x0010
250 } yds_chip_capabliity_list[] = {
251 	{ PCI_PRODUCT_YAMAHA_YMF724,
252 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },
253 	/* 740[C] has only 32 slots.  But anyway we use only 2 */
254 	{ PCI_PRODUCT_YAMAHA_YMF740,
255 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },	/* XXX NOT TESTED */
256 	{ PCI_PRODUCT_YAMAHA_YMF740C,
257 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
258 	{ PCI_PRODUCT_YAMAHA_YMF724F,
259 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
260 	{ PCI_PRODUCT_YAMAHA_YMF744B,
261 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE },
262 	{ PCI_PRODUCT_YAMAHA_YMF754,
263 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE|YDS_CAP_HAS_P44 },
264 	{ 0, 0 }
265 };
266 #ifdef AUDIO_DEBUG
267 #define YDS_CAP_BITS	"\020\005P44\004LEGFLEX\003LEGSEL\002MCODE1E\001MCODE1"
268 #endif
269 
270 static const struct audio_format yds_formats[] = {
271 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
272 	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
273 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
274 	 2, AUFMT_STEREO, 0, {4000, 48000}},
275 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
276 	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
277 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
278 	 2, AUFMT_STEREO, 0, {4000, 48000}},
279 };
280 #define	YDS_NFORMATS	(sizeof(yds_formats) / sizeof(struct audio_format))
281 
282 #ifdef AUDIO_DEBUG
283 static void
284 yds_dump_play_slot(struct yds_softc *sc, int bank __unused)
285 {
286 	int i, j;
287 	uint32_t *p;
288 	uint32_t num;
289 	char *pa;
290 
291 	for (i = 0; i < N_PLAY_SLOTS; i++) {
292 		printf("pbankp[%d] = %p,", i*2, sc->pbankp[i*2]);
293 		printf("pbankp[%d] = %p\n", i*2+1, sc->pbankp[i*2+1]);
294 	}
295 
296 	pa = (char *)DMAADDR(&sc->sc_ctrldata) + sc->pbankoff;
297 	p = (uint32_t *)sc->ptbl;
298 	printf("ptbl + 0: %d\n", *p++);
299 	for (i = 0; i < N_PLAY_SLOTS; i++) {
300 		printf("ptbl + %d: 0x%x, should be %p\n",
301 		       i+1, *p,
302 		       pa + i * sizeof(struct play_slot_ctrl_bank) *
303 				N_PLAY_SLOT_CTRL_BANK);
304 		p++;
305 	}
306 
307 	num = le32toh(*(uint32_t*)sc->ptbl);
308 	printf("numofplay = %d\n", num);
309 
310 	for (i = 0; i < num; i++) {
311 		p = (uint32_t *)sc->pbankp[i*2];
312 
313 		printf("  pbankp[%d], bank 0 : %p\n", i*2, p);
314 		for (j = 0;
315 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(uint32_t);
316 		     j++) {
317 			printf("    0x%02x: 0x%08x\n",
318 			       (unsigned)(j * sizeof(uint32_t)),
319 			       (unsigned)*p++);
320 		}
321 
322 		p = (uint32_t *)sc->pbankp[i*2 + 1];
323 		printf("  pbankp[%d], bank 1 : %p\n", i*2 + 1, p);
324 		for (j = 0;
325 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(uint32_t);
326 		     j++) {
327 			printf("    0x%02x: 0x%08x\n",
328 			       (unsigned)(j * sizeof(uint32_t)),
329 			       (unsigned)*p++);
330 		}
331 	}
332 }
333 #endif /* AUDIO_DEBUG */
334 
335 static u_int
336 yds_get_dstype(int id)
337 {
338 	int i;
339 
340 	for (i = 0; yds_chip_capabliity_list[i].id; i++) {
341 		if (PCI_PRODUCT(id) == yds_chip_capabliity_list[i].id)
342 			return yds_chip_capabliity_list[i].flags;
343 	}
344 
345 	return -1;
346 }
347 
348 static int
349 yds_download_mcode(struct yds_softc *sc)
350 {
351 	static struct {
352 		const uint32_t *mcode;
353 		size_t size;
354 	} ctrls[] = {
355 		{yds_ds1_ctrl_mcode, sizeof(yds_ds1_ctrl_mcode)},
356 		{yds_ds1e_ctrl_mcode, sizeof(yds_ds1e_ctrl_mcode)},
357 	};
358 	u_int ctrl;
359 	const uint32_t *p;
360 	size_t size;
361 	int dstype;
362 
363 	if (sc->sc_flags & YDS_CAP_MCODE_1)
364 		dstype = YDS_DS_1;
365 	else if (sc->sc_flags & YDS_CAP_MCODE_1E)
366 		dstype = YDS_DS_1E;
367 	else
368 		return 1;	/* unknown */
369 
370 	if (yds_disable_dsp(sc))
371 		return 1;
372 
373 	/* Software reset */
374 	YWRITE4(sc, YDS_MODE, YDS_MODE_RESET);
375 	YWRITE4(sc, YDS_MODE, 0);
376 
377 	YWRITE4(sc, YDS_MAPOF_REC, 0);
378 	YWRITE4(sc, YDS_MAPOF_EFFECT, 0);
379 	YWRITE4(sc, YDS_PLAY_CTRLBASE, 0);
380 	YWRITE4(sc, YDS_REC_CTRLBASE, 0);
381 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, 0);
382 	YWRITE4(sc, YDS_WORK_BASE, 0);
383 
384 	ctrl = YREAD2(sc, YDS_GLOBAL_CONTROL);
385 	YWRITE2(sc, YDS_GLOBAL_CONTROL, ctrl & ~0x0007);
386 
387 	/* Download DSP microcode. */
388 	p = yds_dsp_mcode;
389 	size = sizeof(yds_dsp_mcode);
390 	YWRITEREGION4(sc, YDS_DSP_INSTRAM, p, size);
391 
392 	/* Download CONTROL microcode. */
393 	p = ctrls[dstype].mcode;
394 	size = ctrls[dstype].size;
395 	YWRITEREGION4(sc, YDS_CTRL_INSTRAM, p, size);
396 
397 	yds_enable_dsp(sc);
398 	delay(10 * 1000);		/* nessesary on my 724F (??) */
399 
400 	return 0;
401 }
402 
403 static int
404 yds_allocate_slots(struct yds_softc *sc)
405 {
406 	size_t pcs, rcs, ecs, ws, memsize;
407 	void *mp;
408 	uint32_t da;		/* DMA address */
409 	char *va;		/* KVA */
410 	off_t cb;
411 	int i;
412 	struct yds_dma *p;
413 
414 	/* Alloc DSP Control Data */
415 	pcs = YREAD4(sc, YDS_PLAY_CTRLSIZE) * sizeof(uint32_t);
416 	rcs = YREAD4(sc, YDS_REC_CTRLSIZE) * sizeof(uint32_t);
417 	ecs = YREAD4(sc, YDS_EFFECT_CTRLSIZE) * sizeof(uint32_t);
418 	ws = WORK_SIZE;
419 	YWRITE4(sc, YDS_WORK_SIZE, ws / sizeof(uint32_t));
420 
421 	DPRINTF(("play control size : %d\n", (unsigned int)pcs));
422 	DPRINTF(("rec control size : %d\n", (unsigned int)rcs));
423 	DPRINTF(("eff control size : %d\n", (unsigned int)ecs));
424 	DPRINTF(("work size : %d\n", (unsigned int)ws));
425 #ifdef DIAGNOSTIC
426 	if (pcs != sizeof(struct play_slot_ctrl_bank)) {
427 		printf("%s: invalid play slot ctrldata %d != %d\n",
428 		       sc->sc_dev.dv_xname, (unsigned int)pcs,
429 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
430 	if (rcs != sizeof(struct rec_slot_ctrl_bank))
431 		printf("%s: invalid rec slot ctrldata %d != %d\n",
432 		       sc->sc_dev.dv_xname, (unsigned int)rcs,
433 		       (unsigned int)sizeof(struct rec_slot_ctrl_bank));
434 	}
435 #endif
436 
437 	memsize = N_PLAY_SLOTS*N_PLAY_SLOT_CTRL_BANK*pcs +
438 		  N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK*rcs + ws;
439 	memsize += (N_PLAY_SLOTS+1)*sizeof(uint32_t);
440 
441 	p = &sc->sc_ctrldata;
442 	if (KERNADDR(p) == NULL) {
443 		i = yds_allocmem(sc, memsize, 16, p);
444 		if (i) {
445 			printf("%s: couldn't alloc/map DSP DMA buffer, reason %d\n",
446 				sc->sc_dev.dv_xname, i);
447 			free(p, M_DEVBUF);
448 			return 1;
449 		}
450 	}
451 	mp = KERNADDR(p);
452 	da = DMAADDR(p);
453 
454 	DPRINTF(("mp:%p, DMA addr:%p\n",
455 		 mp, (void *)sc->sc_ctrldata.map->dm_segs[0].ds_addr));
456 
457 	memset(mp, 0, memsize);
458 
459 	/* Work space */
460 	cb = 0;
461 	va = (uint8_t *)mp;
462 	YWRITE4(sc, YDS_WORK_BASE, da + cb);
463 	cb += ws;
464 
465 	/* Play control data table */
466 	sc->ptbl = (uint32_t *)(va + cb);
467 	sc->ptbloff = cb;
468 	YWRITE4(sc, YDS_PLAY_CTRLBASE, da + cb);
469 	cb += (N_PLAY_SLOT_CTRL + 1) * sizeof(uint32_t);
470 
471 	/* Record slot control data */
472 	sc->rbank = (struct rec_slot_ctrl_bank *)(va + cb);
473 	YWRITE4(sc, YDS_REC_CTRLBASE, da + cb);
474 	sc->rbankoff = cb;
475 	cb += N_REC_SLOT_CTRL * N_REC_SLOT_CTRL_BANK * rcs;
476 
477 #if 0
478 	/* Effect slot control data -- unused */
479 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, da + cb);
480 	cb += N_EFFECT_SLOT_CTRL * N_EFFECT_SLOT_CTRL_BANK * ecs;
481 #endif
482 
483 	/* Play slot control data */
484 	sc->pbankoff = cb;
485 	for (i=0; i < N_PLAY_SLOT_CTRL; i++) {
486 		sc->pbankp[i*2] = (struct play_slot_ctrl_bank *)(va + cb);
487 		*(sc->ptbl + i+1) = htole32(da + cb);
488 		cb += pcs;
489 
490 		sc->pbankp[i*2+1] = (struct play_slot_ctrl_bank *)(va + cb);
491 		cb += pcs;
492 	}
493 	/* Sync play control data table */
494 	bus_dmamap_sync(sc->sc_dmatag, p->map,
495 			sc->ptbloff, (N_PLAY_SLOT_CTRL+1) * sizeof(uint32_t),
496 			BUS_DMASYNC_PREWRITE);
497 
498 	return 0;
499 }
500 
501 static void
502 yds_enable_dsp(struct yds_softc *sc)
503 {
504 
505 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
506 }
507 
508 static int
509 yds_disable_dsp(struct yds_softc *sc)
510 {
511 	int to;
512 	uint32_t data;
513 
514 	data = YREAD4(sc, YDS_CONFIG);
515 	if (data)
516 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
517 
518 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
519 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
520 			return 0;
521 		delay(1);
522 	}
523 
524 	return 1;
525 }
526 
527 static int
528 yds_match(struct device *parent __unused, struct cfdata *match __unused,
529     void *aux)
530 {
531 	struct pci_attach_args *pa;
532 
533 	pa = (struct pci_attach_args *)aux;
534 	switch (PCI_VENDOR(pa->pa_id)) {
535 	case PCI_VENDOR_YAMAHA:
536 		switch (PCI_PRODUCT(pa->pa_id)) {
537 		case PCI_PRODUCT_YAMAHA_YMF724:
538 		case PCI_PRODUCT_YAMAHA_YMF740:
539 		case PCI_PRODUCT_YAMAHA_YMF740C:
540 		case PCI_PRODUCT_YAMAHA_YMF724F:
541 		case PCI_PRODUCT_YAMAHA_YMF744B:
542 		case PCI_PRODUCT_YAMAHA_YMF754:
543 			return 1;
544 		}
545 		break;
546 	}
547 
548 	return 0;
549 }
550 
551 /*
552  * This routine is called after all the ISA devices are configured,
553  * to avoid conflict.
554  */
555 static void
556 yds_configure_legacy(struct device *arg)
557 #define FLEXIBLE	(sc->sc_flags & YDS_CAP_LEGACY_FLEXIBLE)
558 #define SELECTABLE	(sc->sc_flags & YDS_CAP_LEGACY_SELECTABLE)
559 {
560 	static const bus_addr_t opl_addrs[] = {0x388, 0x398, 0x3A0, 0x3A8};
561 	static const bus_addr_t mpu_addrs[] = {0x330, 0x300, 0x332, 0x334};
562 	struct yds_softc *sc;
563 	pcireg_t reg;
564 	struct device *dev;
565 	int i;
566 
567 	sc = (struct yds_softc*) arg;
568 	if (!FLEXIBLE && !SELECTABLE)
569 		return;
570 
571 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY);
572 	reg &= ~0x8133c03f;	/* these bits are out of interest */
573 	reg |= ((YDS_PCI_EX_LEGACY_IMOD) |
574 		(YDS_PCI_LEGACY_FMEN |
575 		 YDS_PCI_LEGACY_MEN /*| YDS_PCI_LEGACY_MIEN*/));
576 	reg |= YDS_PCI_EX_LEGACY_SMOD_DISABLE;
577 	if (FLEXIBLE) {
578 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
579 		delay(100*1000);
580 	}
581 
582 	/* Look for OPL */
583 	dev = 0;
584 	for (i = 0; i < sizeof(opl_addrs) / sizeof(bus_addr_t); i++) {
585 		if (SELECTABLE) {
586 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
587 				       YDS_PCI_LEGACY, reg | (i << (0+16)));
588 			delay(100*1000);	/* wait 100ms */
589 		} else
590 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
591 				       YDS_PCI_FM_BA, opl_addrs[i]);
592 		if (bus_space_map(sc->sc_opl_iot,
593 				  opl_addrs[i], 4, 0, &sc->sc_opl_ioh) == 0) {
594 			struct audio_attach_args aa;
595 
596 			aa.type = AUDIODEV_TYPE_OPL;
597 			aa.hwif = aa.hdl = NULL;
598 			dev = config_found(&sc->sc_dev, &aa, audioprint);
599 			if (dev == 0)
600 				bus_space_unmap(sc->sc_opl_iot,
601 						sc->sc_opl_ioh, 4);
602 			else {
603 				if (SELECTABLE)
604 					reg |= (i << (0+16));
605 				break;
606 			}
607 		}
608 	}
609 	if (dev == 0) {
610 		reg &= ~YDS_PCI_LEGACY_FMEN;
611 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
612 			       YDS_PCI_LEGACY, reg);
613 	} else {
614 		/* Max. volume */
615 		YWRITE4(sc, YDS_LEGACY_OUT_VOLUME, 0x3fff3fff);
616 		YWRITE4(sc, YDS_LEGACY_REC_VOLUME, 0x3fff3fff);
617 	}
618 
619 	/* Look for MPU */
620 	dev = 0;
621 	for (i = 0; i < sizeof(mpu_addrs) / sizeof(bus_addr_t); i++) {
622 		if (SELECTABLE)
623 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
624 				       YDS_PCI_LEGACY, reg | (i << (4+16)));
625 		else
626 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
627 				       YDS_PCI_MPU_BA, mpu_addrs[i]);
628 		if (bus_space_map(sc->sc_mpu_iot,
629 				  mpu_addrs[i], 2, 0, &sc->sc_mpu_ioh) == 0) {
630 			struct audio_attach_args aa;
631 
632 			aa.type = AUDIODEV_TYPE_MPU;
633 			aa.hwif = aa.hdl = NULL;
634 			dev = config_found(&sc->sc_dev, &aa, audioprint);
635 			if (dev == 0)
636 				bus_space_unmap(sc->sc_mpu_iot,
637 						sc->sc_mpu_ioh, 2);
638 			else {
639 				if (SELECTABLE)
640 					reg |= (i << (4+16));
641 				break;
642 			}
643 		}
644 	}
645 	if (dev == 0) {
646 		reg &= ~(YDS_PCI_LEGACY_MEN | YDS_PCI_LEGACY_MIEN);
647 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
648 	}
649 	sc->sc_mpu = dev;
650 }
651 #undef FLEXIBLE
652 #undef SELECTABLE
653 
654 static int
655 yds_init(struct yds_softc *sc)
656 {
657 	uint32_t reg;
658 
659 	DPRINTF(("yds_init()\n"));
660 
661 	/* Download microcode */
662 	if (yds_download_mcode(sc)) {
663 		printf("%s: download microcode failed\n", sc->sc_dev.dv_xname);
664 		return 1;
665 	}
666 
667 	/* Allocate DMA buffers */
668 	if (yds_allocate_slots(sc)) {
669 		printf("%s: could not allocate slots\n", sc->sc_dev.dv_xname);
670 		return 1;
671 	}
672 
673 	/* Warm reset */
674 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
675 	pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL,
676 		reg | YDS_DSCTRL_WRST);
677 	delay(50000);
678 
679 	return 0;
680 }
681 
682 static void
683 yds_powerhook(int why, void *addr)
684 {
685 	struct yds_softc *sc;
686 	pci_chipset_tag_t pc;
687 	pcitag_t tag;
688 	pcireg_t reg;
689 	int s;
690 
691 	sc = (struct yds_softc *)addr;
692 	pc = sc->sc_pc;
693 	tag = sc->sc_pcitag;
694 
695 	s = splaudio();
696 	switch (why) {
697 	case PWR_SUSPEND:
698 		pci_conf_capture(pc, tag, &sc->sc_pciconf);
699 
700 		sc->sc_dsctrl = pci_conf_read(pc, tag, YDS_PCI_DSCTRL);
701 		sc->sc_legacy = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
702 		sc->sc_ba[0] = pci_conf_read(pc, tag, YDS_PCI_FM_BA);
703 		sc->sc_ba[1] = pci_conf_read(pc, tag, YDS_PCI_MPU_BA);
704 		break;
705 	case PWR_RESUME:
706 		pci_conf_restore(pc, tag, &sc->sc_pciconf);
707 
708 		/* Disable legacy mode */
709 		reg = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
710 		pci_conf_write(pc, tag, YDS_PCI_LEGACY,
711 		    reg & YDS_PCI_LEGACY_LAD);
712 
713 		/* Enable the device. */
714 		reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
715 		reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
716 			PCI_COMMAND_MASTER_ENABLE);
717 		pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, reg);
718 		reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
719 		if (yds_init(sc)) {
720 			printf("%s: reinitialize failed\n",
721 				sc->sc_dev.dv_xname);
722 			splx(s);
723 			return;
724 		}
725 		pci_conf_write(pc, tag, YDS_PCI_DSCTRL, sc->sc_dsctrl);
726 		sc->sc_codec[0].codec_if->vtbl->restore_ports(sc->sc_codec[0].codec_if);
727 		break;
728 	case PWR_SOFTRESUME:
729 		pci_conf_write(pc, tag, YDS_PCI_LEGACY, sc->sc_legacy);
730 		pci_conf_write(pc, tag, YDS_PCI_FM_BA, sc->sc_ba[0]);
731 		pci_conf_write(pc, tag, YDS_PCI_MPU_BA, sc->sc_ba[1]);
732 #if notyet
733 		yds_configure_legacy(addr);
734 #endif
735 		break;
736 	}
737 	splx(s);
738 
739 	return;
740 }
741 
742 static void
743 yds_attach(struct device *parent __unused, struct device *self, void *aux)
744 {
745 	struct yds_softc *sc;
746 	struct pci_attach_args *pa;
747 	pci_chipset_tag_t pc;
748 	char const *intrstr;
749 	pci_intr_handle_t ih;
750 	pcireg_t reg;
751 	struct yds_codec_softc *codec;
752 	char devinfo[256];
753 	int i, r, to;
754 	int revision;
755 	int ac97_id2;
756 
757 	sc = (struct yds_softc *)self;
758 	pa = (struct pci_attach_args *)aux;
759 	pc = pa->pa_pc;
760 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
761 	revision = PCI_REVISION(pa->pa_class);
762 	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
763 
764 	/* Map register to memory */
765 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
766 			   &sc->memt, &sc->memh, NULL, NULL)) {
767 		printf("%s: can't map memory space\n", sc->sc_dev.dv_xname);
768 		return;
769 	}
770 
771 	/* Map and establish the interrupt. */
772 	if (pci_intr_map(pa, &ih)) {
773 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
774 		return;
775 	}
776 	intrstr = pci_intr_string(pc, ih);
777 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc);
778 	if (sc->sc_ih == NULL) {
779 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
780 		if (intrstr != NULL)
781 			printf(" at %s", intrstr);
782 		printf("\n");
783 		return;
784 	}
785 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
786 
787 	sc->sc_dmatag = pa->pa_dmat;
788 	sc->sc_pc = pc;
789 	sc->sc_pcitag = pa->pa_tag;
790 	sc->sc_id = pa->pa_id;
791 	sc->sc_revision = revision;
792 	sc->sc_flags = yds_get_dstype(sc->sc_id);
793 #ifdef AUDIO_DEBUG
794 	if (ydsdebug) {
795 		char bits[80];
796 
797 		printf("%s: chip has %s\n", sc->sc_dev.dv_xname,
798 		       bitmask_snprintf(sc->sc_flags, YDS_CAP_BITS, bits,
799 					sizeof(bits)));
800 	}
801 #endif
802 
803 	/* Disable legacy mode */
804 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_LEGACY);
805 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_LEGACY,
806 		       reg & YDS_PCI_LEGACY_LAD);
807 
808 	/* Enable the device. */
809 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
810 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
811 		PCI_COMMAND_MASTER_ENABLE);
812 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
813 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
814 
815 	/* Mute all volumes */
816 	for (i = 0x80; i < 0xc0; i += 2)
817 		YWRITE2(sc, i, 0);
818 
819 	/* Initialize the device */
820 	if (yds_init(sc)) {
821 		printf("%s: initialize failed\n", sc->sc_dev.dv_xname);
822 		return;
823 	}
824 
825 	/*
826 	 * Detect primary/secondary AC97
827 	 *	YMF754 Hardware Specification Rev 1.01 page 24
828 	 */
829 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
830 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
831 	delay(400000);		/* Needed for 740C. */
832 
833 	/* Primary */
834 	for (to = 0; to < AC97_TIMEOUT; to++) {
835 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
836 			break;
837 		delay(1);
838 	}
839 	if (to == AC97_TIMEOUT) {
840 		printf("%s: no AC97 available\n", sc->sc_dev.dv_xname);
841 		return;
842 	}
843 
844 	/* Secondary */
845 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
846 	ac97_id2 = -1;
847 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
848 		goto detected;
849 #if 0				/* reset secondary... */
850 	YWRITE2(sc, YDS_GPIO_OCTRL,
851 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
852 	YWRITE2(sc, YDS_GPIO_FUNCE,
853 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
854 #endif
855 	for (to = 0; to < AC97_TIMEOUT; to++) {
856 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
857 			break;
858 		delay(1);
859 	}
860 	if (to < AC97_TIMEOUT) {
861 		/* detect id */
862 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
863 			YWRITE2(sc, AC97_CMD_ADDR,
864 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
865 
866 			for (to = 0; to < AC97_TIMEOUT; to++) {
867 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
868 				    == 0)
869 					goto detected;
870 				delay(1);
871 			}
872 		}
873 		if (ac97_id2 == 4)
874 			ac97_id2 = -1;
875 detected:
876 		;
877 	}
878 
879 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_CRST);
880 	delay (20);
881 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
882 	delay (400000);
883 	for (to = 0; to < AC97_TIMEOUT; to++) {
884 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
885 			break;
886 		delay(1);
887 	}
888 
889 	/*
890 	 * Attach ac97 codec
891 	 */
892 	for (i = 0; i < 2; i++) {
893 		static struct {
894 			int data;
895 			int addr;
896 		} statregs[] = {
897 			{AC97_STAT_DATA1, AC97_STAT_ADDR1},
898 			{AC97_STAT_DATA2, AC97_STAT_ADDR2},
899 		};
900 
901 		if (i == 1 && ac97_id2 == -1)
902 			break;		/* secondary ac97 not available */
903 
904 		codec = &sc->sc_codec[i];
905 		memcpy(&codec->sc_dev, &sc->sc_dev, sizeof(codec->sc_dev));
906 		codec->sc = sc;
907 		codec->id = i == 1 ? ac97_id2 : 0;
908 		codec->status_data = statregs[i].data;
909 		codec->status_addr = statregs[i].addr;
910 		codec->host_if.arg = codec;
911 		codec->host_if.attach = yds_attach_codec;
912 		codec->host_if.read = yds_read_codec;
913 		codec->host_if.write = yds_write_codec;
914 		codec->host_if.reset = yds_reset_codec;
915 
916 		if ((r = ac97_attach(&codec->host_if, self)) != 0) {
917 			printf("%s: can't attach codec (error 0x%X)\n",
918 			       sc->sc_dev.dv_xname, r);
919 			return;
920 		}
921 	}
922 
923 	if (0 != auconv_create_encodings(yds_formats, YDS_NFORMATS,
924 					 &sc->sc_encodings))
925 		return;
926 
927 	audio_attach_mi(&yds_hw_if, sc, &sc->sc_dev);
928 
929 	sc->sc_legacy_iot = pa->pa_iot;
930 	config_defer((struct device*) sc, yds_configure_legacy);
931 
932 	powerhook_establish(sc->sc_dev.dv_xname, yds_powerhook, sc);
933 }
934 
935 static int
936 yds_attach_codec(void *sc_, struct ac97_codec_if *codec_if)
937 {
938 	struct yds_codec_softc *sc;
939 
940 	sc = sc_;
941 	sc->codec_if = codec_if;
942 	return 0;
943 }
944 
945 static int
946 yds_ready_codec(struct yds_codec_softc *sc)
947 {
948 	int to;
949 
950 	for (to = 0; to < AC97_TIMEOUT; to++) {
951 		if ((YREAD2(sc->sc, sc->status_addr) & AC97_BUSY) == 0)
952 			return 0;
953 		delay(1);
954 	}
955 
956 	return 1;
957 }
958 
959 static int
960 yds_read_codec(void *sc_, uint8_t reg, uint16_t *data)
961 {
962 	struct yds_codec_softc *sc;
963 
964 	sc = sc_;
965 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);
966 
967 	if (yds_ready_codec(sc)) {
968 		printf("%s: yds_read_codec timeout\n",
969 		       sc->sc->sc_dev.dv_xname);
970 		return EIO;
971 	}
972 
973 	if (PCI_PRODUCT(sc->sc->sc_id) == PCI_PRODUCT_YAMAHA_YMF744B &&
974 	    sc->sc->sc_revision < 2) {
975 		int i;
976 		for (i=0; i<600; i++)
977 			(void)YREAD2(sc->sc, sc->status_data);
978 	}
979 
980 	*data = YREAD2(sc->sc, sc->status_data);
981 
982 	return 0;
983 }
984 
985 static int
986 yds_write_codec(void *sc_, uint8_t reg, uint16_t data)
987 {
988 	struct yds_codec_softc *sc;
989 
990 	sc = sc_;
991 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_WRITE | AC97_ID(sc->id) | reg);
992 	YWRITE2(sc->sc, AC97_CMD_DATA, data);
993 
994 	if (yds_ready_codec(sc)) {
995 		printf("%s: yds_write_codec timeout\n",
996 			sc->sc->sc_dev.dv_xname);
997 		return EIO;
998 	}
999 
1000 	return 0;
1001 }
1002 
1003 /*
1004  * XXX: Must handle the secondary differntly!!
1005  */
1006 static int
1007 yds_reset_codec(void *sc_)
1008 {
1009 	struct yds_codec_softc *codec;
1010 	struct yds_softc *sc;
1011 	pcireg_t reg;
1012 
1013 	codec = sc_;
1014 	sc = codec->sc;
1015 	/* reset AC97 codec */
1016 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
1017 	if (reg & 0x03) {
1018 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1019 			       YDS_PCI_DSCTRL, reg & ~0x03);
1020 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1021 			       YDS_PCI_DSCTRL, reg | 0x03);
1022 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1023 			       YDS_PCI_DSCTRL, reg & ~0x03);
1024 		delay(50000);
1025 	}
1026 
1027 	yds_ready_codec(sc_);
1028 	return 0;
1029 }
1030 
1031 static int
1032 yds_intr(void *p)
1033 {
1034 	struct yds_softc *sc;
1035 	u_int status;
1036 
1037 	sc = p;
1038 	status = YREAD4(sc, YDS_STATUS);
1039 	DPRINTFN(1, ("yds_intr: status=%08x\n", status));
1040 	if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
1041 #if NMPU > 0
1042 		if (sc->sc_mpu)
1043 			return mpu_intr(sc->sc_mpu);
1044 #endif
1045 		return 0;
1046 	}
1047 
1048 	if (status & YDS_STAT_TINT) {
1049 		YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
1050 		printf ("yds_intr: timeout!\n");
1051 	}
1052 
1053 	if (status & YDS_STAT_INT) {
1054 		int nbank;
1055 
1056 		nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
1057 		/* Clear interrupt flag */
1058 		YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
1059 
1060 		/* Buffer for the next frame is always ready. */
1061 		YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
1062 
1063 		if (sc->sc_play.intr) {
1064 			u_int dma, ccpu, blk, len;
1065 
1066 			/* Sync play slot control data */
1067 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1068 					sc->pbankoff,
1069 					sizeof(struct play_slot_ctrl_bank)*
1070 					    le32toh(*sc->ptbl)*
1071 					    N_PLAY_SLOT_CTRL_BANK,
1072 					BUS_DMASYNC_POSTWRITE|
1073 					BUS_DMASYNC_POSTREAD);
1074 			dma = le32toh(sc->pbankp[nbank]->pgstart) * sc->sc_play.factor;
1075 			ccpu = sc->sc_play.offset;
1076 			blk = sc->sc_play.blksize;
1077 			len = sc->sc_play.length;
1078 
1079 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1080 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1081 				/* We can fill the next block */
1082 				/* Sync ring buffer for previous write */
1083 				bus_dmamap_sync(sc->sc_dmatag,
1084 						sc->sc_play.dma->map,
1085 						ccpu, blk,
1086 						BUS_DMASYNC_POSTWRITE);
1087 				sc->sc_play.intr(sc->sc_play.intr_arg);
1088 				sc->sc_play.offset += blk;
1089 				if (sc->sc_play.offset >= len) {
1090 					sc->sc_play.offset -= len;
1091 #ifdef DIAGNOSTIC
1092 					if (sc->sc_play.offset != 0)
1093 						printf ("Audio ringbuffer botch\n");
1094 #endif
1095 				}
1096 				/* Sync ring buffer for next write */
1097 				bus_dmamap_sync(sc->sc_dmatag,
1098 						sc->sc_play.dma->map,
1099 						ccpu, blk,
1100 						BUS_DMASYNC_PREWRITE);
1101 			}
1102 		}
1103 		if (sc->sc_rec.intr) {
1104 			u_int dma, ccpu, blk, len;
1105 
1106 			/* Sync rec slot control data */
1107 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1108 					sc->rbankoff,
1109 					sizeof(struct rec_slot_ctrl_bank)*
1110 					    N_REC_SLOT_CTRL*
1111 					    N_REC_SLOT_CTRL_BANK,
1112 					BUS_DMASYNC_POSTWRITE|
1113 					BUS_DMASYNC_POSTREAD);
1114 			dma = le32toh(sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr);
1115 			ccpu = sc->sc_rec.offset;
1116 			blk = sc->sc_rec.blksize;
1117 			len = sc->sc_rec.length;
1118 
1119 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1120 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1121 				/* We can drain the current block */
1122 				/* Sync ring buffer first */
1123 				bus_dmamap_sync(sc->sc_dmatag,
1124 						sc->sc_rec.dma->map,
1125 						ccpu, blk,
1126 						BUS_DMASYNC_POSTREAD);
1127 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
1128 				sc->sc_rec.offset += blk;
1129 				if (sc->sc_rec.offset >= len) {
1130 					sc->sc_rec.offset -= len;
1131 #ifdef DIAGNOSTIC
1132 					if (sc->sc_rec.offset != 0)
1133 						printf ("Audio ringbuffer botch\n");
1134 #endif
1135 				}
1136 				/* Sync ring buffer for next read */
1137 				bus_dmamap_sync(sc->sc_dmatag,
1138 						sc->sc_rec.dma->map,
1139 						ccpu, blk,
1140 						BUS_DMASYNC_PREREAD);
1141 			}
1142 		}
1143 	}
1144 
1145 	return 1;
1146 }
1147 
1148 static int
1149 yds_allocmem(struct yds_softc *sc, size_t size, size_t align, struct yds_dma *p)
1150 {
1151 	int error;
1152 
1153 	p->size = size;
1154 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
1155 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
1156 				 &p->nsegs, BUS_DMA_NOWAIT);
1157 	if (error)
1158 		return error;
1159 
1160 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
1161 			       &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
1162 	if (error)
1163 		goto free;
1164 
1165 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
1166 				  0, BUS_DMA_NOWAIT, &p->map);
1167 	if (error)
1168 		goto unmap;
1169 
1170 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
1171 				BUS_DMA_NOWAIT);
1172 	if (error)
1173 		goto destroy;
1174 	return 0;
1175 
1176 destroy:
1177 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1178 unmap:
1179 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1180 free:
1181 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1182 	return error;
1183 }
1184 
1185 static int
1186 yds_freemem(struct yds_softc *sc, struct yds_dma *p)
1187 {
1188 
1189 	bus_dmamap_unload(sc->sc_dmatag, p->map);
1190 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1191 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1192 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1193 	return 0;
1194 }
1195 
1196 static int
1197 yds_open(void *addr, int flags __unused)
1198 {
1199 	struct yds_softc *sc;
1200 	uint32_t mode;
1201 
1202 	sc = addr;
1203 	/* Select bank 0. */
1204 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
1205 
1206 	/* Start the DSP operation. */
1207 	mode = YREAD4(sc, YDS_MODE);
1208 	mode |= YDS_MODE_ACTV;
1209 	mode &= ~YDS_MODE_ACTV2;
1210 	YWRITE4(sc, YDS_MODE, mode);
1211 
1212 	return 0;
1213 }
1214 
1215 /*
1216  * Close function is called at splaudio().
1217  */
1218 static void
1219 yds_close(void *addr)
1220 {
1221 
1222 	yds_halt(addr);
1223 }
1224 
1225 static int
1226 yds_query_encoding(void *addr, struct audio_encoding *fp)
1227 {
1228 	struct yds_softc *sc;
1229 
1230 	sc = addr;
1231 	return auconv_query_encoding(sc->sc_encodings, fp);
1232 }
1233 
1234 static int
1235 yds_set_params(void *addr __unused, int setmode, int usemode __unused,
1236 	       audio_params_t *play, audio_params_t* rec,
1237 	       stream_filter_list_t *pfil, stream_filter_list_t *rfil)
1238 {
1239 	if (setmode & AUMODE_RECORD) {
1240 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1241 					 AUMODE_RECORD, rec, FALSE, rfil) < 0)
1242 			return EINVAL;
1243 	}
1244 	if (setmode & AUMODE_PLAY) {
1245 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1246 					 AUMODE_PLAY, play, FALSE, pfil) < 0)
1247 			return EINVAL;
1248 	}
1249 	return 0;
1250 }
1251 
1252 static int
1253 yds_round_blocksize(void *addr __unused, int blk, int mode __unused,
1254     const audio_params_t *param __unused)
1255 {
1256 
1257 	/*
1258 	 * Block size must be bigger than a frame.
1259 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
1260 	 */
1261 	if (blk < 1024)
1262 		blk = 1024;
1263 
1264 	return blk & ~4;
1265 }
1266 
1267 static uint32_t
1268 yds_get_lpfq(u_int sample_rate)
1269 {
1270 	int i;
1271 	static struct lpfqt {
1272 		u_int rate;
1273 		uint32_t lpfq;
1274 	} lpfqt[] = {
1275 		{8000,  0x32020000},
1276 		{11025, 0x31770000},
1277 		{16000, 0x31390000},
1278 		{22050, 0x31c90000},
1279 		{32000, 0x33d00000},
1280 		{48000, 0x40000000},
1281 		{0, 0}
1282 	};
1283 
1284 	if (sample_rate == 44100)		/* for P44 slot? */
1285 		return 0x370A0000;
1286 
1287 	for (i = 0; lpfqt[i].rate != 0; i++)
1288 		if (sample_rate <= lpfqt[i].rate)
1289 			break;
1290 
1291 	return lpfqt[i].lpfq;
1292 }
1293 
1294 static uint32_t
1295 yds_get_lpfk(u_int sample_rate)
1296 {
1297 	int i;
1298 	static struct lpfkt {
1299 		u_int rate;
1300 		uint32_t lpfk;
1301 	} lpfkt[] = {
1302 		{8000,  0x18b20000},
1303 		{11025, 0x20930000},
1304 		{16000, 0x2b9a0000},
1305 		{22050, 0x35a10000},
1306 		{32000, 0x3eaa0000},
1307 		{48000, 0x40000000},
1308 		{0, 0}
1309 	};
1310 
1311 	if (sample_rate == 44100)		/* for P44 slot? */
1312 		return 0x46460000;
1313 
1314 	for (i = 0; lpfkt[i].rate != 0; i++)
1315 		if (sample_rate <= lpfkt[i].rate)
1316 			break;
1317 
1318 	return lpfkt[i].lpfk;
1319 }
1320 
1321 static int
1322 yds_trigger_output(void *addr, void *start, void *end, int blksize,
1323 		   void (*intr)(void *), void *arg, const audio_params_t *param)
1324 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
1325 {
1326 	struct yds_softc *sc;
1327 	struct yds_dma *p;
1328 	struct play_slot_ctrl_bank *psb;
1329 	const u_int gain = 0x40000000;
1330 	bus_addr_t s;
1331 	size_t l;
1332 	int i;
1333 	int p44, channels;
1334 	uint32_t format;
1335 
1336 	sc = addr;
1337 #ifdef DIAGNOSTIC
1338 	if (sc->sc_play.intr)
1339 		panic("yds_trigger_output: already running");
1340 #endif
1341 
1342 	sc->sc_play.intr = intr;
1343 	sc->sc_play.intr_arg = arg;
1344 	sc->sc_play.offset = 0;
1345 	sc->sc_play.blksize = blksize;
1346 
1347 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
1348 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1349 
1350 	p = yds_find_dma(sc, start);
1351 	if (!p) {
1352 		printf("yds_trigger_output: bad addr %p\n", start);
1353 		return EINVAL;
1354 	}
1355 	sc->sc_play.dma = p;
1356 
1357 #ifdef YDS_USE_P44
1358 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
1359 	if (P44)
1360 		p44 = ((param->sample_rate == 44100) &&
1361 		       (param->channels == 2) &&
1362 		       (param->precision == 16));
1363 	else
1364 #endif
1365 		p44 = 0;
1366 	channels = p44 ? 1 : param->channels;
1367 
1368 	s = DMAADDR(p);
1369 	l = ((char *)end - (char *)start);
1370 	sc->sc_play.length = l;
1371 
1372 	*sc->ptbl = htole32(channels);	/* Num of play */
1373 
1374 	sc->sc_play.factor = 1;
1375 	if (param->channels == 2)
1376 		sc->sc_play.factor *= 2;
1377 	if (param->precision != 8)
1378 		sc->sc_play.factor *= 2;
1379 	l /= sc->sc_play.factor;
1380 
1381 	format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
1382 		  (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
1383 		  (p44 ? PSLT_FORMAT_SRC441 : 0));
1384 
1385 	psb = sc->pbankp[0];
1386 	memset(psb, 0, sizeof(*psb));
1387 	psb->format = htole32(format);
1388 	psb->pgbase = htole32(s);
1389 	psb->pgloopend = htole32(l);
1390 	if (!p44) {
1391 		psb->pgdeltaend = htole32((param->sample_rate * 65536 / 48000) << 12);
1392 		psb->lpfkend = htole32(yds_get_lpfk(param->sample_rate));
1393 		psb->eggainend = htole32(gain);
1394 		psb->lpfq = htole32(yds_get_lpfq(param->sample_rate));
1395 		psb->pgdelta = htole32(psb->pgdeltaend);
1396 		psb->lpfk = htole32(yds_get_lpfk(param->sample_rate));
1397 		psb->eggain = htole32(gain);
1398 	}
1399 
1400 	for (i = 0; i < channels; i++) {
1401 		/* i == 0: left or mono, i == 1: right */
1402 		psb = sc->pbankp[i*2];
1403 		if (i)
1404 			/* copy from left */
1405 			*psb = *(sc->pbankp[0]);
1406 		if (channels == 2) {
1407 			/* stereo */
1408 			if (i == 0) {
1409 				psb->lchgain = psb->lchgainend = htole32(gain);
1410 			} else {
1411 				psb->lchgain = psb->lchgainend = 0;
1412 				psb->rchgain = psb->rchgainend = htole32(gain);
1413 				psb->format |= htole32(PSLT_FORMAT_RCH);
1414 			}
1415 		} else if (!p44) {
1416 			/* mono */
1417 			psb->lchgain = psb->rchgain = htole32(gain);
1418 			psb->lchgainend = psb->rchgainend = htole32(gain);
1419 		}
1420 		/* copy to the other bank */
1421 		*(sc->pbankp[i*2+1]) = *psb;
1422 	}
1423 
1424 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
1425 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
1426 
1427 	if (p44)
1428 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
1429 	else
1430 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
1431 
1432 	/* Now the play slot for the next frame is set up!! */
1433 	/* Sync play slot control data for both directions */
1434 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1435 			sc->ptbloff,
1436 			sizeof(struct play_slot_ctrl_bank) *
1437 			    channels * N_PLAY_SLOT_CTRL_BANK,
1438 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1439 	/* Sync ring buffer */
1440 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1441 			BUS_DMASYNC_PREWRITE);
1442 	/* HERE WE GO!! */
1443 	YWRITE4(sc, YDS_MODE,
1444 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1445 
1446 	return 0;
1447 }
1448 #undef P44
1449 
1450 static int
1451 yds_trigger_input(void *addr, void *start, void *end, int blksize,
1452 		  void (*intr)(void *), void *arg, const audio_params_t *param)
1453 {
1454 	struct yds_softc *sc;
1455 	struct yds_dma *p;
1456 	u_int srate, format;
1457 	struct rec_slot_ctrl_bank *rsb;
1458 	bus_addr_t s;
1459 	size_t l;
1460 
1461 	sc = addr;
1462 #ifdef DIAGNOSTIC
1463 	if (sc->sc_rec.intr)
1464 		panic("yds_trigger_input: already running");
1465 #endif
1466 	sc->sc_rec.intr = intr;
1467 	sc->sc_rec.intr_arg = arg;
1468 	sc->sc_rec.offset = 0;
1469 	sc->sc_rec.blksize = blksize;
1470 
1471 	DPRINTFN(1, ("yds_trigger_input: "
1472 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1473 	    addr, start, end, blksize, intr, arg));
1474 	DPRINTFN(1, (" parameters: rate=%u, precision=%u, channels=%u\n",
1475 	    param->sample_rate, param->precision, param->channels));
1476 
1477 	p = yds_find_dma(sc, start);
1478 	if (!p) {
1479 		printf("yds_trigger_input: bad addr %p\n", start);
1480 		return EINVAL;
1481 	}
1482 	sc->sc_rec.dma = p;
1483 
1484 	s = DMAADDR(p);
1485 	l = ((char *)end - (char *)start);
1486 	sc->sc_rec.length = l;
1487 
1488 	sc->sc_rec.factor = 1;
1489 	if (param->channels == 2)
1490 		sc->sc_rec.factor *= 2;
1491 	if (param->precision != 8)
1492 		sc->sc_rec.factor *= 2;
1493 
1494 	rsb = &sc->rbank[0];
1495 	memset(rsb, 0, sizeof(*rsb));
1496 	rsb->pgbase = htole32(s);
1497 	rsb->pgloopendadr = htole32(l);
1498 	/* Seems all 4 banks must be set up... */
1499 	sc->rbank[1] = *rsb;
1500 	sc->rbank[2] = *rsb;
1501 	sc->rbank[3] = *rsb;
1502 
1503 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
1504 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
1505 	srate = 48000 * 4096 / param->sample_rate - 1;
1506 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
1507 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
1508 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
1509 #ifdef YDS_USE_REC_SLOT
1510 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
1511 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
1512 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
1513 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
1514 	YWRITE4(sc, YDS_REC_FORMAT, format);
1515 #else
1516 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
1517 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
1518 	YWRITE4(sc, YDS_ADC_FORMAT, format);
1519 #endif
1520 	/* Now the rec slot for the next frame is set up!! */
1521 	/* Sync record slot control data */
1522 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1523 			sc->rbankoff,
1524 			sizeof(struct rec_slot_ctrl_bank)*
1525 			    N_REC_SLOT_CTRL*
1526 			    N_REC_SLOT_CTRL_BANK,
1527 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1528 	/* Sync ring buffer */
1529 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1530 			BUS_DMASYNC_PREREAD);
1531 	/* HERE WE GO!! */
1532 	YWRITE4(sc, YDS_MODE,
1533 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1534 
1535 	return 0;
1536 }
1537 
1538 static int
1539 yds_halt(struct yds_softc *sc)
1540 {
1541 	uint32_t mode;
1542 
1543 	/* Stop the DSP operation. */
1544 	mode = YREAD4(sc, YDS_MODE);
1545 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
1546 
1547 	/* Paranoia...  mute all */
1548 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
1549 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
1550 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
1551 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
1552 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
1553 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
1554 
1555 	return 0;
1556 }
1557 
1558 static int
1559 yds_halt_output(void *addr)
1560 {
1561 	struct yds_softc *sc;
1562 
1563 	DPRINTF(("yds: yds_halt_output\n"));
1564 	sc = addr;
1565 	if (sc->sc_play.intr) {
1566 		sc->sc_play.intr = 0;
1567 		/* Sync play slot control data */
1568 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1569 				sc->pbankoff,
1570 				sizeof(struct play_slot_ctrl_bank)*
1571 				    (*sc->ptbl)*N_PLAY_SLOT_CTRL_BANK,
1572 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1573 		/* Stop the play slot operation */
1574 		sc->pbankp[0]->status =
1575 		sc->pbankp[1]->status =
1576 		sc->pbankp[2]->status =
1577 		sc->pbankp[3]->status = 1;
1578 		/* Sync ring buffer */
1579 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
1580 				0, sc->sc_play.length, BUS_DMASYNC_POSTWRITE);
1581 	}
1582 
1583 	return 0;
1584 }
1585 
1586 static int
1587 yds_halt_input(void *addr)
1588 {
1589 	struct yds_softc *sc;
1590 
1591 	DPRINTF(("yds: yds_halt_input\n"));
1592 	sc = addr;
1593 	sc->sc_rec.intr = NULL;
1594 	if (sc->sc_rec.intr) {
1595 		/* Stop the rec slot operation */
1596 		YWRITE4(sc, YDS_MAPOF_REC, 0);
1597 		sc->sc_rec.intr = 0;
1598 		/* Sync rec slot control data */
1599 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1600 				sc->rbankoff,
1601 				sizeof(struct rec_slot_ctrl_bank)*
1602 				    N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK,
1603 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1604 		/* Sync ring buffer */
1605 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
1606 				0, sc->sc_rec.length, BUS_DMASYNC_POSTREAD);
1607 	}
1608 
1609 	return 0;
1610 }
1611 
1612 static int
1613 yds_getdev(void *addr __unused, struct audio_device *retp)
1614 {
1615 
1616 	*retp = yds_device;
1617 	return 0;
1618 }
1619 
1620 static int
1621 yds_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1622 {
1623 	struct yds_softc *sc;
1624 
1625 	sc = addr;
1626 	return sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
1627 	    sc->sc_codec[0].codec_if, cp);
1628 }
1629 
1630 static int
1631 yds_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1632 {
1633 	struct yds_softc *sc;
1634 
1635 	sc = addr;
1636 	return sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
1637 	    sc->sc_codec[0].codec_if, cp);
1638 }
1639 
1640 static int
1641 yds_query_devinfo(void *addr, mixer_devinfo_t *dip)
1642 {
1643 	struct yds_softc *sc;
1644 
1645 	sc = addr;
1646 	return sc->sc_codec[0].codec_if->vtbl->query_devinfo(
1647 	    sc->sc_codec[0].codec_if, dip);
1648 }
1649 
1650 static void *
1651 yds_malloc(void *addr, int direction __unused, size_t size,
1652 	   struct malloc_type *pool, int flags)
1653 {
1654 	struct yds_softc *sc;
1655 	struct yds_dma *p;
1656 	int error;
1657 
1658 	p = malloc(sizeof(*p), pool, flags);
1659 	if (p == NULL)
1660 		return NULL;
1661 	sc = addr;
1662 	error = yds_allocmem(sc, size, 16, p);
1663 	if (error) {
1664 		free(p, pool);
1665 		return NULL;
1666 	}
1667 	p->next = sc->sc_dmas;
1668 	sc->sc_dmas = p;
1669 	return KERNADDR(p);
1670 }
1671 
1672 static void
1673 yds_free(void *addr, void *ptr, struct malloc_type *pool)
1674 {
1675 	struct yds_softc *sc;
1676 	struct yds_dma **pp, *p;
1677 
1678 	sc = addr;
1679 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1680 		if (KERNADDR(p) == ptr) {
1681 			yds_freemem(sc, p);
1682 			*pp = p->next;
1683 			free(p, pool);
1684 			return;
1685 		}
1686 	}
1687 }
1688 
1689 static struct yds_dma *
1690 yds_find_dma(struct yds_softc *sc, void *addr)
1691 {
1692 	struct yds_dma *p;
1693 
1694 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
1695 		continue;
1696 
1697 	return p;
1698 }
1699 
1700 static size_t
1701 yds_round_buffersize(void *addr __unused, int direction __unused, size_t size)
1702 {
1703 
1704 	/*
1705 	 * Buffer size should be at least twice as bigger as a frame.
1706 	 */
1707 	if (size < 1024 * 3)
1708 		size = 1024 * 3;
1709 	return size;
1710 }
1711 
1712 static paddr_t
1713 yds_mappage(void *addr, void *mem, off_t off, int prot)
1714 {
1715 	struct yds_softc *sc;
1716 	struct yds_dma *p;
1717 
1718 	if (off < 0)
1719 		return -1;
1720 	sc = addr;
1721 	p = yds_find_dma(sc, mem);
1722 	if (p == NULL)
1723 		return -1;
1724 	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1725 	    off, prot, BUS_DMA_WAITOK);
1726 }
1727 
1728 static int
1729 yds_get_props(void *addr __unused)
1730 {
1731 
1732 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1733 	    AUDIO_PROP_FULLDUPLEX;
1734 }
1735