xref: /netbsd-src/sys/dev/pci/yds.c (revision 6a493d6bc668897c91594964a732d38505b70cbb)
1 /*	$NetBSD: yds.c,v 1.54 2013/10/17 21:05:41 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 1.54 2013/10/17 21:05:41 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/kmem.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(device_t, cfdata_t, void *);
92 static void	yds_attach(device_t, device_t, 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_NEW(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);
171 static void	yds_free(void *, void *, size_t);
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 static void	yds_get_locks(void *, kmutex_t **, kmutex_t **);
177 
178 static int     yds_attach_codec(void *, struct ac97_codec_if *);
179 static int	yds_read_codec(void *, uint8_t, uint16_t *);
180 static int	yds_write_codec(void *, uint8_t, uint16_t);
181 static int     yds_reset_codec(void *);
182 
183 static u_int	yds_get_dstype(int);
184 static int	yds_download_mcode(struct yds_softc *);
185 static int	yds_allocate_slots(struct yds_softc *);
186 static void	yds_configure_legacy(device_t);
187 static void	yds_enable_dsp(struct yds_softc *);
188 static int	yds_disable_dsp(struct yds_softc *);
189 static int	yds_ready_codec(struct yds_codec_softc *);
190 static int	yds_halt(struct yds_softc *);
191 static uint32_t yds_get_lpfq(u_int);
192 static uint32_t yds_get_lpfk(u_int);
193 static struct yds_dma *yds_find_dma(struct yds_softc *, void *);
194 
195 static int	yds_init(struct yds_softc *);
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 	yds_get_locks,
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)
285 {
286 	int i, j;
287 	uint32_t *p;
288 	uint32_t num;
289 	bus_addr_t 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 = DMAADDR(&sc->sc_ctrldata) + sc->pbankoff;
297 	p = sc->ptbl;
298 	printf("ptbl + 0: %d\n", *p++);
299 	for (i = 0; i < N_PLAY_SLOTS; i++) {
300 		printf("ptbl + %d: %#x, should be %#" PRIxPADDR "\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 #ifndef AUDIO_DEBUG
425 	__USE(ecs);
426 #endif
427 	DPRINTF(("work size : %d\n", (unsigned int)ws));
428 #ifdef DIAGNOSTIC
429 	if (pcs != sizeof(struct play_slot_ctrl_bank)) {
430 		aprint_error_dev(sc->sc_dev, "invalid play slot ctrldata %d != %d\n",
431 		       (unsigned int)pcs,
432 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
433 	if (rcs != sizeof(struct rec_slot_ctrl_bank))
434 		aprint_error_dev(sc->sc_dev, "invalid rec slot ctrldata %d != %d\n",
435 		       (unsigned int)rcs,
436 		       (unsigned int)sizeof(struct rec_slot_ctrl_bank));
437 	}
438 #endif
439 
440 	memsize = N_PLAY_SLOTS*N_PLAY_SLOT_CTRL_BANK*pcs +
441 		  N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK*rcs + ws;
442 	memsize += (N_PLAY_SLOTS+1)*sizeof(uint32_t);
443 
444 	p = &sc->sc_ctrldata;
445 	if (KERNADDR(p) == NULL) {
446 		i = yds_allocmem(sc, memsize, 16, p);
447 		if (i) {
448 			aprint_error_dev(sc->sc_dev, "couldn't alloc/map DSP DMA buffer, reason %d\n", i);
449 			return 1;
450 		}
451 	}
452 	mp = KERNADDR(p);
453 	da = DMAADDR(p);
454 
455 	DPRINTF(("mp:%p, DMA addr:%#" PRIxPADDR "\n",
456 		 mp, sc->sc_ctrldata.map->dm_segs[0].ds_addr));
457 
458 	memset(mp, 0, memsize);
459 
460 	/* Work space */
461 	cb = 0;
462 	va = (uint8_t *)mp;
463 	YWRITE4(sc, YDS_WORK_BASE, da + cb);
464 	cb += ws;
465 
466 	/* Play control data table */
467 	sc->ptbl = (uint32_t *)(va + cb);
468 	sc->ptbloff = cb;
469 	YWRITE4(sc, YDS_PLAY_CTRLBASE, da + cb);
470 	cb += (N_PLAY_SLOT_CTRL + 1) * sizeof(uint32_t);
471 
472 	/* Record slot control data */
473 	sc->rbank = (struct rec_slot_ctrl_bank *)(va + cb);
474 	YWRITE4(sc, YDS_REC_CTRLBASE, da + cb);
475 	sc->rbankoff = cb;
476 	cb += N_REC_SLOT_CTRL * N_REC_SLOT_CTRL_BANK * rcs;
477 
478 #if 0
479 	/* Effect slot control data -- unused */
480 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, da + cb);
481 	cb += N_EFFECT_SLOT_CTRL * N_EFFECT_SLOT_CTRL_BANK * ecs;
482 #endif
483 
484 	/* Play slot control data */
485 	sc->pbankoff = cb;
486 	for (i=0; i < N_PLAY_SLOT_CTRL; i++) {
487 		sc->pbankp[i*2] = (struct play_slot_ctrl_bank *)(va + cb);
488 		*(sc->ptbl + i+1) = htole32(da + cb);
489 		cb += pcs;
490 
491 		sc->pbankp[i*2+1] = (struct play_slot_ctrl_bank *)(va + cb);
492 		cb += pcs;
493 	}
494 	/* Sync play control data table */
495 	bus_dmamap_sync(sc->sc_dmatag, p->map,
496 			sc->ptbloff, (N_PLAY_SLOT_CTRL+1) * sizeof(uint32_t),
497 			BUS_DMASYNC_PREWRITE);
498 
499 	return 0;
500 }
501 
502 static void
503 yds_enable_dsp(struct yds_softc *sc)
504 {
505 
506 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
507 }
508 
509 static int
510 yds_disable_dsp(struct yds_softc *sc)
511 {
512 	int to;
513 	uint32_t data;
514 
515 	data = YREAD4(sc, YDS_CONFIG);
516 	if (data)
517 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
518 
519 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
520 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
521 			return 0;
522 		delay(1);
523 	}
524 
525 	return 1;
526 }
527 
528 static int
529 yds_match(device_t parent, cfdata_t match, 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(device_t self)
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 	device_t dev;
565 	int i;
566 
567 	sc = device_private(self);
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(self, &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 = NULL;
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(self, &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 		aprint_error_dev(sc->sc_dev, "download microcode failed\n");
664 		return 1;
665 	}
666 
667 	/* Allocate DMA buffers */
668 	if (yds_allocate_slots(sc)) {
669 		aprint_error_dev(sc->sc_dev, "could not allocate slots\n");
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 bool
683 yds_suspend(device_t dv, const pmf_qual_t *qual)
684 {
685 	struct yds_softc *sc = device_private(dv);
686 	pci_chipset_tag_t pc = sc->sc_pc;
687 	pcitag_t tag = sc->sc_pcitag;
688 
689 	mutex_enter(&sc->sc_lock);
690 	mutex_spin_enter(&sc->sc_intr_lock);
691 	sc->sc_dsctrl = pci_conf_read(pc, tag, YDS_PCI_DSCTRL);
692 	sc->sc_legacy = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
693 	sc->sc_ba[0] = pci_conf_read(pc, tag, YDS_PCI_FM_BA);
694 	sc->sc_ba[1] = pci_conf_read(pc, tag, YDS_PCI_MPU_BA);
695 	mutex_spin_exit(&sc->sc_intr_lock);
696 	mutex_exit(&sc->sc_lock);
697 
698 	return true;
699 }
700 
701 static bool
702 yds_resume(device_t dv, const pmf_qual_t *qual)
703 {
704 	struct yds_softc *sc = device_private(dv);
705 	pci_chipset_tag_t pc = sc->sc_pc;
706 	pcitag_t tag = sc->sc_pcitag;
707 	pcireg_t reg;
708 
709 	/* Disable legacy mode */
710 	mutex_enter(&sc->sc_lock);
711 	mutex_spin_enter(&sc->sc_intr_lock);
712 	reg = pci_conf_read(pc, tag, YDS_PCI_LEGACY);
713 	pci_conf_write(pc, tag, YDS_PCI_LEGACY, reg & YDS_PCI_LEGACY_LAD);
714 
715 	/* Enable the device. */
716 	reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
717 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
718 		PCI_COMMAND_MASTER_ENABLE);
719 	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, reg);
720 	reg = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
721 	if (yds_init(sc)) {
722 		aprint_error_dev(dv, "reinitialize failed\n");
723 		mutex_spin_exit(&sc->sc_intr_lock);
724 		mutex_exit(&sc->sc_lock);
725 		return false;
726 	}
727 
728 	pci_conf_write(pc, tag, YDS_PCI_DSCTRL, sc->sc_dsctrl);
729 	mutex_spin_exit(&sc->sc_intr_lock);
730 	sc->sc_codec[0].codec_if->vtbl->restore_ports(sc->sc_codec[0].codec_if);
731 	mutex_exit(&sc->sc_lock);
732 
733 	return true;
734 }
735 
736 static void
737 yds_attach(device_t parent, device_t self, void *aux)
738 {
739 	struct yds_softc *sc;
740 	struct pci_attach_args *pa;
741 	pci_chipset_tag_t pc;
742 	char const *intrstr;
743 	pci_intr_handle_t ih;
744 	pcireg_t reg;
745 	struct yds_codec_softc *codec;
746 	int i, r, to;
747 	int revision;
748 	int ac97_id2;
749 
750 	sc = device_private(self);
751 	sc->sc_dev = self;
752 	pa = (struct pci_attach_args *)aux;
753 	pc = pa->pa_pc;
754 	revision = PCI_REVISION(pa->pa_class);
755 
756 	pci_aprint_devinfo(pa, NULL);
757 
758 	/* Map register to memory */
759 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
760 			   &sc->memt, &sc->memh, NULL, NULL)) {
761 		aprint_error_dev(self, "can't map memory space\n");
762 		return;
763 	}
764 
765 	/* Map and establish the interrupt. */
766 	if (pci_intr_map(pa, &ih)) {
767 		aprint_error_dev(self, "couldn't map interrupt\n");
768 		return;
769 	}
770 
771 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_AUDIO); /* XXX IPL_NONE? */
772 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
773 
774 	intrstr = pci_intr_string(pc, ih);
775 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc);
776 	if (sc->sc_ih == NULL) {
777 		aprint_error_dev(self, "couldn't establish interrupt");
778 		if (intrstr != NULL)
779 			aprint_error(" at %s", intrstr);
780 		aprint_error("\n");
781 		mutex_destroy(&sc->sc_lock);
782 		mutex_destroy(&sc->sc_intr_lock);
783 		return;
784 	}
785 	aprint_normal_dev(self, "interrupting at %s\n", 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 		snprintb(bits, sizeof(bits), YDS_CAP_BITS, sc->sc_flags);
798 		printf("%s: chip has %s\n", device_xname(self), bits);
799 	}
800 #endif
801 
802 	/* Disable legacy mode */
803 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_LEGACY);
804 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_LEGACY,
805 		       reg & YDS_PCI_LEGACY_LAD);
806 
807 	/* Enable the device. */
808 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
809 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
810 		PCI_COMMAND_MASTER_ENABLE);
811 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
812 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
813 
814 	/* Mute all volumes */
815 	for (i = 0x80; i < 0xc0; i += 2)
816 		YWRITE2(sc, i, 0);
817 
818 	/* Initialize the device */
819 	if (yds_init(sc)) {
820 		aprint_error_dev(self, "initialize failed\n");
821 		mutex_destroy(&sc->sc_lock);
822 		mutex_destroy(&sc->sc_intr_lock);
823 		return;
824 	}
825 
826 	/*
827 	 * Detect primary/secondary AC97
828 	 *	YMF754 Hardware Specification Rev 1.01 page 24
829 	 */
830 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
831 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
832 	delay(400000);		/* Needed for 740C. */
833 
834 	/* Primary */
835 	for (to = 0; to < AC97_TIMEOUT; to++) {
836 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
837 			break;
838 		delay(1);
839 	}
840 	if (to == AC97_TIMEOUT) {
841 		aprint_error_dev(self, "no AC97 available\n");
842 		mutex_destroy(&sc->sc_lock);
843 		mutex_destroy(&sc->sc_intr_lock);
844 		return;
845 	}
846 
847 	/* Secondary */
848 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
849 	ac97_id2 = -1;
850 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
851 		goto detected;
852 #if 0				/* reset secondary... */
853 	YWRITE2(sc, YDS_GPIO_OCTRL,
854 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
855 	YWRITE2(sc, YDS_GPIO_FUNCE,
856 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
857 #endif
858 	for (to = 0; to < AC97_TIMEOUT; to++) {
859 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
860 			break;
861 		delay(1);
862 	}
863 	if (to < AC97_TIMEOUT) {
864 		/* detect id */
865 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
866 			YWRITE2(sc, AC97_CMD_ADDR,
867 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
868 
869 			for (to = 0; to < AC97_TIMEOUT; to++) {
870 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
871 				    == 0)
872 					goto detected;
873 				delay(1);
874 			}
875 		}
876 		if (ac97_id2 == 4)
877 			ac97_id2 = -1;
878 detected:
879 		;
880 	}
881 
882 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_CRST);
883 	delay (20);
884 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
885 	delay (400000);
886 	for (to = 0; to < AC97_TIMEOUT; to++) {
887 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
888 			break;
889 		delay(1);
890 	}
891 
892 	/*
893 	 * Attach ac97 codec
894 	 */
895 	for (i = 0; i < 2; i++) {
896 		static struct {
897 			int data;
898 			int addr;
899 		} statregs[] = {
900 			{AC97_STAT_DATA1, AC97_STAT_ADDR1},
901 			{AC97_STAT_DATA2, AC97_STAT_ADDR2},
902 		};
903 
904 		if (i == 1 && ac97_id2 == -1)
905 			break;		/* secondary ac97 not available */
906 
907 		codec = &sc->sc_codec[i];
908 		codec->sc = sc;
909 		codec->id = i == 1 ? ac97_id2 : 0;
910 		codec->status_data = statregs[i].data;
911 		codec->status_addr = statregs[i].addr;
912 		codec->host_if.arg = codec;
913 		codec->host_if.attach = yds_attach_codec;
914 		codec->host_if.read = yds_read_codec;
915 		codec->host_if.write = yds_write_codec;
916 		codec->host_if.reset = yds_reset_codec;
917 
918 		r = ac97_attach(&codec->host_if, self, &sc->sc_lock);
919 		if (r != 0) {
920 			aprint_error_dev(self, "can't attach codec (error 0x%X)\n", r);
921 			mutex_destroy(&sc->sc_lock);
922 			mutex_destroy(&sc->sc_intr_lock);
923 			return;
924 		}
925 	}
926 
927 	if (0 != auconv_create_encodings(yds_formats, YDS_NFORMATS,
928 	    &sc->sc_encodings)) {
929 		mutex_destroy(&sc->sc_lock);
930 		mutex_destroy(&sc->sc_intr_lock);
931 		return;
932 	}
933 
934 	audio_attach_mi(&yds_hw_if, sc, self);
935 
936 	sc->sc_legacy_iot = pa->pa_iot;
937 	config_defer(self, yds_configure_legacy);
938 
939 	if (!pmf_device_register(self, yds_suspend, yds_resume))
940 		aprint_error_dev(self, "couldn't establish power handler\n");
941 }
942 
943 static int
944 yds_attach_codec(void *sc_, struct ac97_codec_if *codec_if)
945 {
946 	struct yds_codec_softc *sc;
947 
948 	sc = sc_;
949 	sc->codec_if = codec_if;
950 	return 0;
951 }
952 
953 static int
954 yds_ready_codec(struct yds_codec_softc *sc)
955 {
956 	int to;
957 
958 	for (to = 0; to < AC97_TIMEOUT; to++) {
959 		if ((YREAD2(sc->sc, sc->status_addr) & AC97_BUSY) == 0)
960 			return 0;
961 		delay(1);
962 	}
963 
964 	return 1;
965 }
966 
967 static int
968 yds_read_codec(void *sc_, uint8_t reg, uint16_t *data)
969 {
970 	struct yds_codec_softc *sc;
971 
972 	sc = sc_;
973 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);
974 
975 	if (yds_ready_codec(sc)) {
976 		aprint_error_dev(sc->sc->sc_dev, "yds_read_codec timeout\n");
977 		return EIO;
978 	}
979 
980 	if (PCI_PRODUCT(sc->sc->sc_id) == PCI_PRODUCT_YAMAHA_YMF744B &&
981 	    sc->sc->sc_revision < 2) {
982 		int i;
983 		for (i=0; i<600; i++)
984 			(void)YREAD2(sc->sc, sc->status_data);
985 	}
986 
987 	*data = YREAD2(sc->sc, sc->status_data);
988 
989 	return 0;
990 }
991 
992 static int
993 yds_write_codec(void *sc_, uint8_t reg, uint16_t data)
994 {
995 	struct yds_codec_softc *sc;
996 
997 	sc = sc_;
998 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_WRITE | AC97_ID(sc->id) | reg);
999 	YWRITE2(sc->sc, AC97_CMD_DATA, data);
1000 
1001 	if (yds_ready_codec(sc)) {
1002 		aprint_error_dev(sc->sc->sc_dev, "yds_write_codec timeout\n");
1003 		return EIO;
1004 	}
1005 
1006 	return 0;
1007 }
1008 
1009 /*
1010  * XXX: Must handle the secondary differntly!!
1011  */
1012 static int
1013 yds_reset_codec(void *sc_)
1014 {
1015 	struct yds_codec_softc *codec;
1016 	struct yds_softc *sc;
1017 	pcireg_t reg;
1018 
1019 	codec = sc_;
1020 	sc = codec->sc;
1021 	/* reset AC97 codec */
1022 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
1023 	if (reg & 0x03) {
1024 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1025 			       YDS_PCI_DSCTRL, reg & ~0x03);
1026 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1027 			       YDS_PCI_DSCTRL, reg | 0x03);
1028 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
1029 			       YDS_PCI_DSCTRL, reg & ~0x03);
1030 		delay(50000);
1031 	}
1032 
1033 	yds_ready_codec(sc_);
1034 	return 0;
1035 }
1036 
1037 static int
1038 yds_intr(void *p)
1039 {
1040 	struct yds_softc *sc = p;
1041 #if NMPU > 0
1042 	struct mpu_softc *sc_mpu = device_private(sc->sc_mpu);
1043 #endif
1044 	u_int status;
1045 
1046 	mutex_spin_enter(&sc->sc_intr_lock);
1047 
1048 	status = YREAD4(sc, YDS_STATUS);
1049 	DPRINTFN(1, ("yds_intr: status=%08x\n", status));
1050 	if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
1051 #if NMPU > 0
1052 		if (sc_mpu)
1053 			return mpu_intr(sc_mpu);
1054 #endif
1055 		mutex_spin_exit(&sc->sc_intr_lock);
1056 		return 0;
1057 	}
1058 
1059 	if (status & YDS_STAT_TINT) {
1060 		YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
1061 		printf ("yds_intr: timeout!\n");
1062 	}
1063 
1064 	if (status & YDS_STAT_INT) {
1065 		int nbank;
1066 
1067 		nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
1068 		/* Clear interrupt flag */
1069 		YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
1070 
1071 		/* Buffer for the next frame is always ready. */
1072 		YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
1073 
1074 		if (sc->sc_play.intr) {
1075 			u_int dma, ccpu, blk, len;
1076 
1077 			/* Sync play slot control data */
1078 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1079 					sc->pbankoff,
1080 					sizeof(struct play_slot_ctrl_bank)*
1081 					    le32toh(*sc->ptbl)*
1082 					    N_PLAY_SLOT_CTRL_BANK,
1083 					BUS_DMASYNC_POSTWRITE|
1084 					BUS_DMASYNC_POSTREAD);
1085 			dma = le32toh(sc->pbankp[nbank]->pgstart) * sc->sc_play.factor;
1086 			ccpu = sc->sc_play.offset;
1087 			blk = sc->sc_play.blksize;
1088 			len = sc->sc_play.length;
1089 
1090 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1091 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1092 				/* We can fill the next block */
1093 				/* Sync ring buffer for previous write */
1094 				bus_dmamap_sync(sc->sc_dmatag,
1095 						sc->sc_play.dma->map,
1096 						ccpu, blk,
1097 						BUS_DMASYNC_POSTWRITE);
1098 				sc->sc_play.intr(sc->sc_play.intr_arg);
1099 				sc->sc_play.offset += blk;
1100 				if (sc->sc_play.offset >= len) {
1101 					sc->sc_play.offset -= len;
1102 #ifdef DIAGNOSTIC
1103 					if (sc->sc_play.offset != 0)
1104 						printf ("Audio ringbuffer botch\n");
1105 #endif
1106 				}
1107 				/* Sync ring buffer for next write */
1108 				bus_dmamap_sync(sc->sc_dmatag,
1109 						sc->sc_play.dma->map,
1110 						ccpu, blk,
1111 						BUS_DMASYNC_PREWRITE);
1112 			}
1113 		}
1114 		if (sc->sc_rec.intr) {
1115 			u_int dma, ccpu, blk, len;
1116 
1117 			/* Sync rec slot control data */
1118 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1119 					sc->rbankoff,
1120 					sizeof(struct rec_slot_ctrl_bank)*
1121 					    N_REC_SLOT_CTRL*
1122 					    N_REC_SLOT_CTRL_BANK,
1123 					BUS_DMASYNC_POSTWRITE|
1124 					BUS_DMASYNC_POSTREAD);
1125 			dma = le32toh(sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr);
1126 			ccpu = sc->sc_rec.offset;
1127 			blk = sc->sc_rec.blksize;
1128 			len = sc->sc_rec.length;
1129 
1130 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
1131 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
1132 				/* We can drain the current block */
1133 				/* Sync ring buffer first */
1134 				bus_dmamap_sync(sc->sc_dmatag,
1135 						sc->sc_rec.dma->map,
1136 						ccpu, blk,
1137 						BUS_DMASYNC_POSTREAD);
1138 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
1139 				sc->sc_rec.offset += blk;
1140 				if (sc->sc_rec.offset >= len) {
1141 					sc->sc_rec.offset -= len;
1142 #ifdef DIAGNOSTIC
1143 					if (sc->sc_rec.offset != 0)
1144 						printf ("Audio ringbuffer botch\n");
1145 #endif
1146 				}
1147 				/* Sync ring buffer for next read */
1148 				bus_dmamap_sync(sc->sc_dmatag,
1149 						sc->sc_rec.dma->map,
1150 						ccpu, blk,
1151 						BUS_DMASYNC_PREREAD);
1152 			}
1153 		}
1154 	}
1155 
1156 	mutex_spin_exit(&sc->sc_intr_lock);
1157 	return 1;
1158 }
1159 
1160 static int
1161 yds_allocmem(struct yds_softc *sc, size_t size, size_t align, struct yds_dma *p)
1162 {
1163 	int error;
1164 
1165 	p->size = size;
1166 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
1167 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
1168 				 &p->nsegs, BUS_DMA_WAITOK);
1169 	if (error)
1170 		return error;
1171 
1172 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
1173 			       &p->addr, BUS_DMA_WAITOK|BUS_DMA_COHERENT);
1174 	if (error)
1175 		goto free;
1176 
1177 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
1178 				  0, BUS_DMA_WAITOK, &p->map);
1179 	if (error)
1180 		goto unmap;
1181 
1182 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
1183 				BUS_DMA_WAITOK);
1184 	if (error)
1185 		goto destroy;
1186 	return 0;
1187 
1188 destroy:
1189 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1190 unmap:
1191 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1192 free:
1193 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1194 	return error;
1195 }
1196 
1197 static int
1198 yds_freemem(struct yds_softc *sc, struct yds_dma *p)
1199 {
1200 
1201 	bus_dmamap_unload(sc->sc_dmatag, p->map);
1202 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1203 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1204 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1205 	return 0;
1206 }
1207 
1208 static int
1209 yds_open(void *addr, int flags)
1210 {
1211 	struct yds_softc *sc;
1212 	uint32_t mode;
1213 
1214 	sc = addr;
1215 	/* Select bank 0. */
1216 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
1217 
1218 	/* Start the DSP operation. */
1219 	mode = YREAD4(sc, YDS_MODE);
1220 	mode |= YDS_MODE_ACTV;
1221 	mode &= ~YDS_MODE_ACTV2;
1222 	YWRITE4(sc, YDS_MODE, mode);
1223 
1224 	return 0;
1225 }
1226 
1227 static void
1228 yds_close(void *addr)
1229 {
1230 
1231 	yds_halt(addr);
1232 }
1233 
1234 static int
1235 yds_query_encoding(void *addr, struct audio_encoding *fp)
1236 {
1237 	struct yds_softc *sc;
1238 
1239 	sc = addr;
1240 	return auconv_query_encoding(sc->sc_encodings, fp);
1241 }
1242 
1243 static int
1244 yds_set_params(void *addr, int setmode, int usemode,
1245 	       audio_params_t *play, audio_params_t* rec,
1246 	       stream_filter_list_t *pfil, stream_filter_list_t *rfil)
1247 {
1248 	if (setmode & AUMODE_RECORD) {
1249 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1250 					 AUMODE_RECORD, rec, FALSE, rfil) < 0)
1251 			return EINVAL;
1252 	}
1253 	if (setmode & AUMODE_PLAY) {
1254 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
1255 					 AUMODE_PLAY, play, FALSE, pfil) < 0)
1256 			return EINVAL;
1257 	}
1258 	return 0;
1259 }
1260 
1261 static int
1262 yds_round_blocksize(void *addr, int blk, int mode,
1263     const audio_params_t *param)
1264 {
1265 
1266 	/*
1267 	 * Block size must be bigger than a frame.
1268 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
1269 	 */
1270 	if (blk < 1024)
1271 		blk = 1024;
1272 
1273 	return blk & ~4;
1274 }
1275 
1276 static uint32_t
1277 yds_get_lpfq(u_int sample_rate)
1278 {
1279 	int i;
1280 	static struct lpfqt {
1281 		u_int rate;
1282 		uint32_t lpfq;
1283 	} lpfqt[] = {
1284 		{8000,  0x32020000},
1285 		{11025, 0x31770000},
1286 		{16000, 0x31390000},
1287 		{22050, 0x31c90000},
1288 		{32000, 0x33d00000},
1289 		{48000, 0x40000000},
1290 		{0, 0}
1291 	};
1292 
1293 	if (sample_rate == 44100)		/* for P44 slot? */
1294 		return 0x370A0000;
1295 
1296 	for (i = 0; lpfqt[i].rate != 0; i++)
1297 		if (sample_rate <= lpfqt[i].rate)
1298 			break;
1299 
1300 	return lpfqt[i].lpfq;
1301 }
1302 
1303 static uint32_t
1304 yds_get_lpfk(u_int sample_rate)
1305 {
1306 	int i;
1307 	static struct lpfkt {
1308 		u_int rate;
1309 		uint32_t lpfk;
1310 	} lpfkt[] = {
1311 		{8000,  0x18b20000},
1312 		{11025, 0x20930000},
1313 		{16000, 0x2b9a0000},
1314 		{22050, 0x35a10000},
1315 		{32000, 0x3eaa0000},
1316 		{48000, 0x40000000},
1317 		{0, 0}
1318 	};
1319 
1320 	if (sample_rate == 44100)		/* for P44 slot? */
1321 		return 0x46460000;
1322 
1323 	for (i = 0; lpfkt[i].rate != 0; i++)
1324 		if (sample_rate <= lpfkt[i].rate)
1325 			break;
1326 
1327 	return lpfkt[i].lpfk;
1328 }
1329 
1330 static int
1331 yds_trigger_output(void *addr, void *start, void *end, int blksize,
1332 		   void (*intr)(void *), void *arg, const audio_params_t *param)
1333 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
1334 {
1335 	struct yds_softc *sc;
1336 	struct yds_dma *p;
1337 	struct play_slot_ctrl_bank *psb;
1338 	const u_int gain = 0x40000000;
1339 	bus_addr_t s;
1340 	size_t l;
1341 	int i;
1342 	int p44, channels;
1343 	uint32_t format;
1344 
1345 	sc = addr;
1346 #ifdef DIAGNOSTIC
1347 	if (sc->sc_play.intr)
1348 		panic("yds_trigger_output: already running");
1349 #endif
1350 
1351 	sc->sc_play.intr = intr;
1352 	sc->sc_play.intr_arg = arg;
1353 	sc->sc_play.offset = 0;
1354 	sc->sc_play.blksize = blksize;
1355 
1356 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
1357 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1358 
1359 	p = yds_find_dma(sc, start);
1360 	if (!p) {
1361 		printf("yds_trigger_output: bad addr %p\n", start);
1362 		return EINVAL;
1363 	}
1364 	sc->sc_play.dma = p;
1365 
1366 #ifdef YDS_USE_P44
1367 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
1368 	if (P44)
1369 		p44 = ((param->sample_rate == 44100) &&
1370 		       (param->channels == 2) &&
1371 		       (param->precision == 16));
1372 	else
1373 #endif
1374 		p44 = 0;
1375 	channels = p44 ? 1 : param->channels;
1376 
1377 	s = DMAADDR(p);
1378 	l = ((char *)end - (char *)start);
1379 	sc->sc_play.length = l;
1380 
1381 	*sc->ptbl = htole32(channels);	/* Num of play */
1382 
1383 	sc->sc_play.factor = 1;
1384 	if (param->channels == 2)
1385 		sc->sc_play.factor *= 2;
1386 	if (param->precision != 8)
1387 		sc->sc_play.factor *= 2;
1388 	l /= sc->sc_play.factor;
1389 
1390 	format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
1391 		  (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
1392 		  (p44 ? PSLT_FORMAT_SRC441 : 0));
1393 
1394 	psb = sc->pbankp[0];
1395 	memset(psb, 0, sizeof(*psb));
1396 	psb->format = htole32(format);
1397 	psb->pgbase = htole32(s);
1398 	psb->pgloopend = htole32(l);
1399 	if (!p44) {
1400 		psb->pgdeltaend = htole32((param->sample_rate * 65536 / 48000) << 12);
1401 		psb->lpfkend = htole32(yds_get_lpfk(param->sample_rate));
1402 		psb->eggainend = htole32(gain);
1403 		psb->lpfq = htole32(yds_get_lpfq(param->sample_rate));
1404 		psb->pgdelta = htole32(psb->pgdeltaend);
1405 		psb->lpfk = htole32(yds_get_lpfk(param->sample_rate));
1406 		psb->eggain = htole32(gain);
1407 	}
1408 
1409 	for (i = 0; i < channels; i++) {
1410 		/* i == 0: left or mono, i == 1: right */
1411 		psb = sc->pbankp[i*2];
1412 		if (i)
1413 			/* copy from left */
1414 			*psb = *(sc->pbankp[0]);
1415 		if (channels == 2) {
1416 			/* stereo */
1417 			if (i == 0) {
1418 				psb->lchgain = psb->lchgainend = htole32(gain);
1419 			} else {
1420 				psb->lchgain = psb->lchgainend = 0;
1421 				psb->rchgain = psb->rchgainend = htole32(gain);
1422 				psb->format |= htole32(PSLT_FORMAT_RCH);
1423 			}
1424 		} else if (!p44) {
1425 			/* mono */
1426 			psb->lchgain = psb->rchgain = htole32(gain);
1427 			psb->lchgainend = psb->rchgainend = htole32(gain);
1428 		}
1429 		/* copy to the other bank */
1430 		*(sc->pbankp[i*2+1]) = *psb;
1431 	}
1432 
1433 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
1434 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
1435 
1436 	if (p44)
1437 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
1438 	else
1439 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
1440 
1441 	/* Now the play slot for the next frame is set up!! */
1442 	/* Sync play slot control data for both directions */
1443 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1444 			sc->ptbloff,
1445 			sizeof(struct play_slot_ctrl_bank) *
1446 			    channels * N_PLAY_SLOT_CTRL_BANK,
1447 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1448 	/* Sync ring buffer */
1449 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1450 			BUS_DMASYNC_PREWRITE);
1451 	/* HERE WE GO!! */
1452 	YWRITE4(sc, YDS_MODE,
1453 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1454 
1455 	return 0;
1456 }
1457 #undef P44
1458 
1459 static int
1460 yds_trigger_input(void *addr, void *start, void *end, int blksize,
1461 		  void (*intr)(void *), void *arg, const audio_params_t *param)
1462 {
1463 	struct yds_softc *sc;
1464 	struct yds_dma *p;
1465 	u_int srate, format;
1466 	struct rec_slot_ctrl_bank *rsb;
1467 	bus_addr_t s;
1468 	size_t l;
1469 
1470 	sc = addr;
1471 #ifdef DIAGNOSTIC
1472 	if (sc->sc_rec.intr)
1473 		panic("yds_trigger_input: already running");
1474 #endif
1475 	sc->sc_rec.intr = intr;
1476 	sc->sc_rec.intr_arg = arg;
1477 	sc->sc_rec.offset = 0;
1478 	sc->sc_rec.blksize = blksize;
1479 
1480 	DPRINTFN(1, ("yds_trigger_input: "
1481 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1482 	    addr, start, end, blksize, intr, arg));
1483 	DPRINTFN(1, (" parameters: rate=%u, precision=%u, channels=%u\n",
1484 	    param->sample_rate, param->precision, param->channels));
1485 
1486 	p = yds_find_dma(sc, start);
1487 	if (!p) {
1488 		printf("yds_trigger_input: bad addr %p\n", start);
1489 		return EINVAL;
1490 	}
1491 	sc->sc_rec.dma = p;
1492 
1493 	s = DMAADDR(p);
1494 	l = ((char *)end - (char *)start);
1495 	sc->sc_rec.length = l;
1496 
1497 	sc->sc_rec.factor = 1;
1498 	if (param->channels == 2)
1499 		sc->sc_rec.factor *= 2;
1500 	if (param->precision != 8)
1501 		sc->sc_rec.factor *= 2;
1502 
1503 	rsb = &sc->rbank[0];
1504 	memset(rsb, 0, sizeof(*rsb));
1505 	rsb->pgbase = htole32(s);
1506 	rsb->pgloopendadr = htole32(l);
1507 	/* Seems all 4 banks must be set up... */
1508 	sc->rbank[1] = *rsb;
1509 	sc->rbank[2] = *rsb;
1510 	sc->rbank[3] = *rsb;
1511 
1512 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
1513 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
1514 	srate = 48000 * 4096 / param->sample_rate - 1;
1515 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
1516 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
1517 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
1518 #ifdef YDS_USE_REC_SLOT
1519 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
1520 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
1521 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
1522 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
1523 	YWRITE4(sc, YDS_REC_FORMAT, format);
1524 #else
1525 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
1526 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
1527 	YWRITE4(sc, YDS_ADC_FORMAT, format);
1528 #endif
1529 	/* Now the rec slot for the next frame is set up!! */
1530 	/* Sync record slot control data */
1531 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1532 			sc->rbankoff,
1533 			sizeof(struct rec_slot_ctrl_bank)*
1534 			    N_REC_SLOT_CTRL*
1535 			    N_REC_SLOT_CTRL_BANK,
1536 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1537 	/* Sync ring buffer */
1538 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1539 			BUS_DMASYNC_PREREAD);
1540 	/* HERE WE GO!! */
1541 	YWRITE4(sc, YDS_MODE,
1542 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1543 
1544 	return 0;
1545 }
1546 
1547 static int
1548 yds_halt(struct yds_softc *sc)
1549 {
1550 	uint32_t mode;
1551 
1552 	/* Stop the DSP operation. */
1553 	mode = YREAD4(sc, YDS_MODE);
1554 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
1555 
1556 	/* Paranoia...  mute all */
1557 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
1558 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
1559 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
1560 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
1561 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
1562 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
1563 
1564 	return 0;
1565 }
1566 
1567 static int
1568 yds_halt_output(void *addr)
1569 {
1570 	struct yds_softc *sc;
1571 
1572 	DPRINTF(("yds: yds_halt_output\n"));
1573 	sc = addr;
1574 	if (sc->sc_play.intr) {
1575 		sc->sc_play.intr = 0;
1576 		/* Sync play slot control data */
1577 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1578 				sc->pbankoff,
1579 				sizeof(struct play_slot_ctrl_bank)*
1580 				    (*sc->ptbl)*N_PLAY_SLOT_CTRL_BANK,
1581 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1582 		/* Stop the play slot operation */
1583 		sc->pbankp[0]->status =
1584 		sc->pbankp[1]->status =
1585 		sc->pbankp[2]->status =
1586 		sc->pbankp[3]->status = 1;
1587 		/* Sync ring buffer */
1588 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
1589 				0, sc->sc_play.length, BUS_DMASYNC_POSTWRITE);
1590 	}
1591 
1592 	return 0;
1593 }
1594 
1595 static int
1596 yds_halt_input(void *addr)
1597 {
1598 	struct yds_softc *sc;
1599 
1600 	DPRINTF(("yds: yds_halt_input\n"));
1601 	sc = addr;
1602 	sc->sc_rec.intr = NULL;
1603 	if (sc->sc_rec.intr) {
1604 		/* Stop the rec slot operation */
1605 		YWRITE4(sc, YDS_MAPOF_REC, 0);
1606 		sc->sc_rec.intr = 0;
1607 		/* Sync rec slot control data */
1608 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1609 				sc->rbankoff,
1610 				sizeof(struct rec_slot_ctrl_bank)*
1611 				    N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK,
1612 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1613 		/* Sync ring buffer */
1614 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
1615 				0, sc->sc_rec.length, BUS_DMASYNC_POSTREAD);
1616 	}
1617 
1618 	return 0;
1619 }
1620 
1621 static int
1622 yds_getdev(void *addr, struct audio_device *retp)
1623 {
1624 
1625 	*retp = yds_device;
1626 	return 0;
1627 }
1628 
1629 static int
1630 yds_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1631 {
1632 	struct yds_softc *sc;
1633 
1634 	sc = addr;
1635 	return sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
1636 	    sc->sc_codec[0].codec_if, cp);
1637 }
1638 
1639 static int
1640 yds_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1641 {
1642 	struct yds_softc *sc;
1643 
1644 	sc = addr;
1645 	return sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
1646 	    sc->sc_codec[0].codec_if, cp);
1647 }
1648 
1649 static int
1650 yds_query_devinfo(void *addr, mixer_devinfo_t *dip)
1651 {
1652 	struct yds_softc *sc;
1653 
1654 	sc = addr;
1655 	return sc->sc_codec[0].codec_if->vtbl->query_devinfo(
1656 	    sc->sc_codec[0].codec_if, dip);
1657 }
1658 
1659 static void *
1660 yds_malloc(void *addr, int direction, size_t size)
1661 {
1662 	struct yds_softc *sc;
1663 	struct yds_dma *p;
1664 	int error;
1665 
1666 	p = kmem_alloc(sizeof(*p), KM_SLEEP);
1667 	if (p == NULL)
1668 		return NULL;
1669 	sc = addr;
1670 	error = yds_allocmem(sc, size, 16, p);
1671 	if (error) {
1672 		kmem_free(p, sizeof(*p));
1673 		return NULL;
1674 	}
1675 	p->next = sc->sc_dmas;
1676 	sc->sc_dmas = p;
1677 	return KERNADDR(p);
1678 }
1679 
1680 static void
1681 yds_free(void *addr, void *ptr, size_t size)
1682 {
1683 	struct yds_softc *sc;
1684 	struct yds_dma **pp, *p;
1685 
1686 	sc = addr;
1687 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1688 		if (KERNADDR(p) == ptr) {
1689 			yds_freemem(sc, p);
1690 			*pp = p->next;
1691 			kmem_free(p, sizeof(*p));
1692 			return;
1693 		}
1694 	}
1695 }
1696 
1697 static struct yds_dma *
1698 yds_find_dma(struct yds_softc *sc, void *addr)
1699 {
1700 	struct yds_dma *p;
1701 
1702 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
1703 		continue;
1704 
1705 	return p;
1706 }
1707 
1708 static size_t
1709 yds_round_buffersize(void *addr, int direction, size_t size)
1710 {
1711 
1712 	/*
1713 	 * Buffer size should be at least twice as bigger as a frame.
1714 	 */
1715 	if (size < 1024 * 3)
1716 		size = 1024 * 3;
1717 	return size;
1718 }
1719 
1720 static paddr_t
1721 yds_mappage(void *addr, void *mem, off_t off, int prot)
1722 {
1723 	struct yds_softc *sc;
1724 	struct yds_dma *p;
1725 
1726 	if (off < 0)
1727 		return -1;
1728 	sc = addr;
1729 	p = yds_find_dma(sc, mem);
1730 	if (p == NULL)
1731 		return -1;
1732 	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1733 	    off, prot, BUS_DMA_WAITOK);
1734 }
1735 
1736 static int
1737 yds_get_props(void *addr)
1738 {
1739 
1740 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1741 	    AUDIO_PROP_FULLDUPLEX;
1742 }
1743 
1744 static void
1745 yds_get_locks(void *addr, kmutex_t **intr, kmutex_t **thread)
1746 {
1747 	struct yds_softc *sc;
1748 
1749 	sc = addr;
1750 	*intr = &sc->sc_intr_lock;
1751 	*thread = &sc->sc_lock;
1752 }
1753