xref: /netbsd-src/sys/dev/pci/yds.c (revision 8a8f936f250a330d54f8a24ed0e92aadf9743a7b)
1 /*	$NetBSD: yds.c,v 1.7 2001/10/03 00:04:52 augustss 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 "mpu.h"
42 
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/fcntl.h>
47 #include <sys/malloc.h>
48 #include <sys/device.h>
49 #include <sys/proc.h>
50 
51 #include <dev/pci/pcidevs.h>
52 #include <dev/pci/pcireg.h>
53 #include <dev/pci/pcivar.h>
54 
55 #include <sys/audioio.h>
56 #include <dev/audio_if.h>
57 #include <dev/mulaw.h>
58 #include <dev/auconv.h>
59 #include <dev/ic/ac97reg.h>
60 #include <dev/ic/ac97var.h>
61 #include <dev/ic/mpuvar.h>
62 
63 #include <machine/bus.h>
64 #include <machine/intr.h>
65 
66 #include <dev/microcode/yds/yds_hwmcode.h>
67 #include <dev/pci/ydsreg.h>
68 #include <dev/pci/ydsvar.h>
69 
70 /* Debug */
71 #undef YDS_USE_REC_SLOT
72 #define YDS_USE_P44
73 
74 #ifdef AUDIO_DEBUG
75 # define DPRINTF(x)	if (ydsdebug) printf x
76 # define DPRINTFN(n,x)	if (ydsdebug>(n)) printf x
77 int	ydsdebug = 0;
78 #else
79 # define DPRINTF(x)
80 # define DPRINTFN(n,x)
81 #endif
82 #ifdef YDS_USE_REC_SLOT
83 # define YDS_INPUT_SLOT 0	/* REC slot = ADC + loopbacks */
84 #else
85 # define YDS_INPUT_SLOT 1	/* ADC slot */
86 #endif
87 
88 int	yds_match __P((struct device *, struct cfdata *, void *));
89 void	yds_attach __P((struct device *, struct device *, void *));
90 int	yds_intr __P((void *));
91 
92 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
93 #define KERNADDR(p) ((void *)((p)->addr))
94 
95 int	yds_allocmem __P((struct yds_softc *, size_t, size_t,
96 			  struct yds_dma *));
97 int	yds_freemem __P((struct yds_softc *, struct yds_dma *));
98 
99 #ifndef AUDIO_DEBUG
100 #define YWRITE1(sc, r, x) bus_space_write_1((sc)->memt, (sc)->memh, (r), (x))
101 #define YWRITE2(sc, r, x) bus_space_write_2((sc)->memt, (sc)->memh, (r), (x))
102 #define YWRITE4(sc, r, x) bus_space_write_4((sc)->memt, (sc)->memh, (r), (x))
103 #define YREAD1(sc, r) bus_space_read_1((sc)->memt, (sc)->memh, (r))
104 #define YREAD2(sc, r) bus_space_read_2((sc)->memt, (sc)->memh, (r))
105 #define YREAD4(sc, r) bus_space_read_4((sc)->memt, (sc)->memh, (r))
106 #else
107 
108 u_int16_t YREAD2(struct yds_softc *sc,bus_size_t r);
109 u_int32_t YREAD4(struct yds_softc *sc,bus_size_t r);
110 void YWRITE1(struct yds_softc *sc,bus_size_t r,u_int8_t x);
111 void YWRITE2(struct yds_softc *sc,bus_size_t r,u_int16_t x);
112 void YWRITE4(struct yds_softc *sc,bus_size_t r,u_int32_t x);
113 
114 u_int16_t YREAD2(struct yds_softc *sc,bus_size_t r)
115 {
116   DPRINTFN(5, (" YREAD2(0x%lX)\n",(unsigned long)r));
117   return bus_space_read_2(sc->memt,sc->memh,r);
118 }
119 u_int32_t YREAD4(struct yds_softc *sc,bus_size_t r)
120 {
121   DPRINTFN(5, (" YREAD4(0x%lX)\n",(unsigned long)r));
122   return bus_space_read_4(sc->memt,sc->memh,r);
123 }
124 void YWRITE1(struct yds_softc *sc,bus_size_t r,u_int8_t x)
125 {
126   DPRINTFN(5, (" YWRITE1(0x%lX,0x%lX)\n",(unsigned long)r,(unsigned long)x));
127   bus_space_write_1(sc->memt,sc->memh,r,x);
128 }
129 void YWRITE2(struct yds_softc *sc,bus_size_t r,u_int16_t x)
130 {
131   DPRINTFN(5, (" YWRITE2(0x%lX,0x%lX)\n",(unsigned long)r,(unsigned long)x));
132   bus_space_write_2(sc->memt,sc->memh,r,x);
133 }
134 void YWRITE4(struct yds_softc *sc,bus_size_t r,u_int32_t x)
135 {
136   DPRINTFN(5, (" YWRITE4(0x%lX,0x%lX)\n",(unsigned long)r,(unsigned long)x));
137   bus_space_write_4(sc->memt,sc->memh,r,x);
138 }
139 #endif
140 
141 #define	YWRITEREGION4(sc, r, x, c)	\
142 	bus_space_write_region_4((sc)->memt, (sc)->memh, (r), (x), (c) / 4)
143 
144 struct cfattach yds_ca = {
145 	sizeof(struct yds_softc), yds_match, yds_attach
146 };
147 
148 int	yds_open __P((void *, int));
149 void	yds_close __P((void *));
150 int	yds_query_encoding __P((void *, struct audio_encoding *));
151 int	yds_set_params __P((void *, int, int,
152 			    struct audio_params *, struct audio_params *));
153 int	yds_round_blocksize __P((void *, int));
154 int	yds_trigger_output __P((void *, void *, void *, int, void (*)(void *),
155 				void *, struct audio_params *));
156 int	yds_trigger_input __P((void *, void *, void *, int, void (*)(void *),
157 			       void *, struct audio_params *));
158 int	yds_halt_output __P((void *));
159 int	yds_halt_input __P((void *));
160 int	yds_getdev __P((void *, struct audio_device *));
161 int	yds_mixer_set_port __P((void *, mixer_ctrl_t *));
162 int	yds_mixer_get_port __P((void *, mixer_ctrl_t *));
163 void   *yds_malloc __P((void *, int, size_t, int, int));
164 void	yds_free __P((void *, void *, int));
165 size_t	yds_round_buffersize __P((void *, int, size_t));
166 paddr_t yds_mappage __P((void *, void *, off_t, int));
167 int	yds_get_props __P((void *));
168 int	yds_query_devinfo __P((void *addr, mixer_devinfo_t *dip));
169 
170 int     yds_attach_codec __P((void *sc, struct ac97_codec_if *));
171 int	yds_read_codec __P((void *sc, u_int8_t a, u_int16_t *d));
172 int	yds_write_codec __P((void *sc, u_int8_t a, u_int16_t d));
173 void    yds_reset_codec __P((void *sc));
174 int     yds_get_portnum_by_name __P((struct yds_softc *, char *, char *,
175 				     char *));
176 
177 static u_int yds_get_dstype __P((int));
178 static int yds_download_mcode __P((struct yds_softc *));
179 static int yds_allocate_slots __P((struct yds_softc *));
180 static void yds_configure_legacy __P((struct device *arg));
181 static void yds_enable_dsp __P((struct yds_softc *));
182 static int yds_disable_dsp __P((struct yds_softc *));
183 static int yds_ready_codec __P((struct yds_codec_softc *));
184 static int yds_halt __P((struct yds_softc *));
185 static u_int32_t yds_get_lpfq __P((u_int));
186 static u_int32_t yds_get_lpfk __P((u_int));
187 static struct yds_dma *yds_find_dma __P((struct yds_softc *, void *));
188 
189 #ifdef AUDIO_DEBUG
190 static void yds_dump_play_slot __P((struct yds_softc *, int));
191 #define	YDS_DUMP_PLAY_SLOT(n,sc,bank) \
192 	if (ydsdebug > (n)) yds_dump_play_slot(sc, bank)
193 #else
194 #define	YDS_DUMP_PLAY_SLOT(n,sc,bank)
195 #endif /* AUDIO_DEBUG */
196 
197 static struct audio_hw_if yds_hw_if = {
198 	yds_open,
199 	yds_close,
200 	NULL,
201 	yds_query_encoding,
202 	yds_set_params,
203 	yds_round_blocksize,
204 	NULL,
205 	NULL,
206 	NULL,
207 	NULL,
208 	NULL,
209 	yds_halt_output,
210 	yds_halt_input,
211 	NULL,
212 	yds_getdev,
213 	NULL,
214 	yds_mixer_set_port,
215 	yds_mixer_get_port,
216 	yds_query_devinfo,
217 	yds_malloc,
218 	yds_free,
219 	yds_round_buffersize,
220 	yds_mappage,
221 	yds_get_props,
222 	yds_trigger_output,
223 	yds_trigger_input,
224 	NULL,
225 };
226 
227 struct audio_device yds_device = {
228 	"Yamaha DS-1",
229 	"",
230 	"yds"
231 };
232 
233 const static struct {
234 	u_int	id;
235 	u_int	flags;
236 #define YDS_CAP_MCODE_1			0x0001
237 #define YDS_CAP_MCODE_1E		0x0002
238 #define YDS_CAP_LEGACY_SELECTABLE	0x0004
239 #define YDS_CAP_LEGACY_FLEXIBLE		0x0008
240 #define YDS_CAP_HAS_P44			0x0010
241 } yds_chip_capabliity_list[] = {
242 	{ PCI_PRODUCT_YAMAHA_YMF724,
243 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },
244 	/* 740[C] has only 32 slots.  But anyway we use only 2 */
245 	{ PCI_PRODUCT_YAMAHA_YMF740,
246 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },	/* XXX NOT TESTED */
247 	{ PCI_PRODUCT_YAMAHA_YMF740C,
248 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
249 	{ PCI_PRODUCT_YAMAHA_YMF724F,
250 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
251 	{ PCI_PRODUCT_YAMAHA_YMF744B,
252 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE },
253 	{ PCI_PRODUCT_YAMAHA_YMF754,
254 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE|YDS_CAP_HAS_P44 },
255 	{ 0, 0 }
256 };
257 #ifdef AUDIO_DEBUG
258 #define YDS_CAP_BITS	"\020\005P44\004LEGFLEX\003LEGSEL\002MCODE1E\001MCODE1"
259 #endif
260 
261 #ifdef AUDIO_DEBUG
262 static void
263 yds_dump_play_slot(sc, bank)
264 	struct yds_softc *sc;
265 	int bank;
266 {
267 	int i, j;
268 	u_int32_t *p;
269 	u_int32_t num;
270 	char *pa;
271 
272 	for (i = 0; i < N_PLAY_SLOTS; i++) {
273 		printf("pbankp[%d] = %p,", i*2, sc->pbankp[i*2]);
274 		printf("pbankp[%d] = %p\n", i*2+1, sc->pbankp[i*2+1]);
275 	}
276 
277 	pa = (char *)DMAADDR(&sc->sc_ctrldata) + sc->pbankoff;
278 	p = (u_int32_t *)sc->ptbl;
279 	printf("ptbl + 0: %d\n", *p++);
280 	for (i = 0; i < N_PLAY_SLOTS; i++) {
281 		printf("ptbl + %d: 0x%x, should be %p\n",
282 		       i+1, *p,
283 		       pa + i * sizeof(struct play_slot_ctrl_bank) *
284 			        N_PLAY_SLOT_CTRL_BANK);
285 		p++;
286 	}
287 
288 	num = *(u_int32_t*)sc->ptbl;
289 	printf("numofplay = %d\n", num);
290 
291 	for (i = 0; i < num; i++) {
292 		p = (u_int32_t *)sc->pbankp[i*2];
293 
294 		printf("  pbankp[%d], bank 0 : %p\n", i*2, p);
295 		for (j = 0;
296 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(u_int32_t);
297 		     j++) {
298 			printf("    0x%02x: 0x%08x\n",
299 			       (unsigned)(j * sizeof(u_int32_t)),
300 			       (unsigned)*p++);
301 		}
302 
303 		p = (u_int32_t *)sc->pbankp[i*2 + 1];
304 		printf("  pbankp[%d], bank 1 : %p\n", i*2 + 1, p);
305 		for (j = 0;
306 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(u_int32_t);
307 		     j++) {
308 			printf("    0x%02x: 0x%08x\n",
309 			       (unsigned)(j * sizeof(u_int32_t)),
310 			       (unsigned)*p++);
311 		}
312 	}
313 }
314 #endif /* AUDIO_DEBUG */
315 
316 static u_int
317 yds_get_dstype(id)
318 	int id;
319 {
320 	int i;
321 
322 	for (i = 0; yds_chip_capabliity_list[i].id; i++) {
323 		if (PCI_PRODUCT(id) == yds_chip_capabliity_list[i].id)
324 			return yds_chip_capabliity_list[i].flags;
325 	}
326 
327 	return -1;
328 }
329 
330 static int
331 yds_download_mcode(sc)
332 	struct yds_softc *sc;
333 {
334 	u_int ctrl;
335 	const u_int32_t *p;
336 	size_t size;
337 	int dstype;
338 
339 	static struct {
340 		const u_int32_t *mcode;
341 		size_t size;
342 	} ctrls[] = {
343 		{yds_ds1_ctrl_mcode, sizeof(yds_ds1_ctrl_mcode)},
344 		{yds_ds1e_ctrl_mcode, sizeof(yds_ds1e_ctrl_mcode)},
345 	};
346 
347 	if (sc->sc_flags & YDS_CAP_MCODE_1)
348 		dstype = YDS_DS_1;
349 	else if (sc->sc_flags & YDS_CAP_MCODE_1E)
350 		dstype = YDS_DS_1E;
351 	else
352 		return 1;	/* unknown */
353 
354 	if (yds_disable_dsp(sc))
355 		return 1;
356 
357 	/* Software reset */
358         YWRITE4(sc, YDS_MODE, YDS_MODE_RESET);
359         YWRITE4(sc, YDS_MODE, 0);
360 
361         YWRITE4(sc, YDS_MAPOF_REC, 0);
362         YWRITE4(sc, YDS_MAPOF_EFFECT, 0);
363         YWRITE4(sc, YDS_PLAY_CTRLBASE, 0);
364         YWRITE4(sc, YDS_REC_CTRLBASE, 0);
365         YWRITE4(sc, YDS_EFFECT_CTRLBASE, 0);
366         YWRITE4(sc, YDS_WORK_BASE, 0);
367 
368         ctrl = YREAD2(sc, YDS_GLOBAL_CONTROL);
369         YWRITE2(sc, YDS_GLOBAL_CONTROL, ctrl & ~0x0007);
370 
371 	/* Download DSP microcode. */
372 	p = yds_dsp_mcode;
373 	size = sizeof(yds_dsp_mcode);
374 	YWRITEREGION4(sc, YDS_DSP_INSTRAM, p, size);
375 
376 	/* Download CONTROL microcode. */
377 	p = ctrls[dstype].mcode;
378 	size = ctrls[dstype].size;
379 	YWRITEREGION4(sc, YDS_CTRL_INSTRAM, p, size);
380 
381 	yds_enable_dsp(sc);
382 	delay(10 * 1000);		/* nessesary on my 724F (??) */
383 
384 	return 0;
385 }
386 
387 static int
388 yds_allocate_slots(sc)
389 	struct yds_softc *sc;
390 {
391 	size_t pcs, rcs, ecs, ws, memsize;
392 	void *mp;
393 	u_int32_t da;		/* DMA address */
394 	char *va;		/* KVA */
395 	off_t cb;
396 	int i;
397 	struct yds_dma *p;
398 
399 	/* Alloc DSP Control Data */
400 	pcs = YREAD4(sc, YDS_PLAY_CTRLSIZE) * sizeof(u_int32_t);
401 	rcs = YREAD4(sc, YDS_REC_CTRLSIZE) * sizeof(u_int32_t);
402 	ecs = YREAD4(sc, YDS_EFFECT_CTRLSIZE) * sizeof(u_int32_t);
403 	ws = WORK_SIZE;
404 	YWRITE4(sc, YDS_WORK_SIZE, ws / sizeof(u_int32_t));
405 
406 	DPRINTF(("play control size : %d\n", (unsigned int)pcs));
407 	DPRINTF(("rec control size : %d\n", (unsigned int)rcs));
408 	DPRINTF(("eff control size : %d\n", (unsigned int)ecs));
409 	DPRINTF(("work size : %d\n", (unsigned int)ws));
410 #ifdef DIAGNOSTIC
411 	if (pcs != sizeof(struct play_slot_ctrl_bank)) {
412 		printf("%s: invalid play slot ctrldata %d != %d\n",
413 		       sc->sc_dev.dv_xname, (unsigned int)pcs,
414 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
415 	if (rcs != sizeof(struct rec_slot_ctrl_bank))
416 		printf("%s: invalid rec slot ctrldata %d != %d\n",
417 		       sc->sc_dev.dv_xname, (unsigned int)rcs,
418 		       (unsigned int)sizeof(struct rec_slot_ctrl_bank));
419 	}
420 #endif
421 
422 	memsize = N_PLAY_SLOTS*N_PLAY_SLOT_CTRL_BANK*pcs +
423 		  N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK*rcs + ws;
424 	memsize += (N_PLAY_SLOTS+1)*sizeof(u_int32_t);
425 
426 	p = &sc->sc_ctrldata;
427 	i = yds_allocmem(sc, memsize, 16, p);
428 	if (i) {
429 		printf("%s: couldn't alloc/map DSP DMA buffer, reason %d\n",
430 		       sc->sc_dev.dv_xname, i);
431 		free(p, M_DEVBUF);
432 		return 1;
433 	}
434 	mp = KERNADDR(p);
435 	da = DMAADDR(p);
436 
437 	DPRINTF(("mp:%p, DMA addr:%p\n",
438 		 mp, (void *)sc->sc_ctrldata.map->dm_segs[0].ds_addr));
439 
440 	memset(mp, 0, memsize);
441 
442 	/* Work space */
443         cb = 0;
444 	va = (u_int8_t *)mp;
445 	YWRITE4(sc, YDS_WORK_BASE, da + cb);
446         cb += ws;
447 
448 	/* Play control data table */
449         sc->ptbl = (u_int32_t *)(va + cb);
450 	sc->ptbloff = cb;
451         YWRITE4(sc, YDS_PLAY_CTRLBASE, da + cb);
452         cb += (N_PLAY_SLOT_CTRL + 1) * sizeof(u_int32_t);
453 
454 	/* Record slot control data */
455         sc->rbank = (struct rec_slot_ctrl_bank *)(va + cb);
456         YWRITE4(sc, YDS_REC_CTRLBASE, da + cb);
457 	sc->rbankoff = cb;
458         cb += N_REC_SLOT_CTRL * N_REC_SLOT_CTRL_BANK * rcs;
459 
460 #if 0
461 	/* Effect slot control data -- unused */
462         YWRITE4(sc, YDS_EFFECT_CTRLBASE, da + cb);
463         cb += N_EFFECT_SLOT_CTRL * N_EFFECT_SLOT_CTRL_BANK * ecs;
464 #endif
465 
466 	/* Play slot control data */
467         sc->pbankoff = cb;
468         for (i=0; i < N_PLAY_SLOT_CTRL; i++) {
469 		sc->pbankp[i*2] = (struct play_slot_ctrl_bank *)(va + cb);
470 		*(sc->ptbl + i+1) = da + cb;
471                 cb += pcs;
472 
473                 sc->pbankp[i*2+1] = (struct play_slot_ctrl_bank *)(va + cb);
474                 cb += pcs;
475         }
476 	/* Sync play control data table */
477 	bus_dmamap_sync(sc->sc_dmatag, p->map,
478 			sc->ptbloff, (N_PLAY_SLOT_CTRL+1) * sizeof(u_int32_t),
479 			BUS_DMASYNC_PREWRITE);
480 
481 	return 0;
482 }
483 
484 static void
485 yds_enable_dsp(sc)
486 	struct yds_softc *sc;
487 {
488 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
489 }
490 
491 static int
492 yds_disable_dsp(sc)
493 	struct yds_softc *sc;
494 {
495 	int to;
496 	u_int32_t data;
497 
498 	data = YREAD4(sc, YDS_CONFIG);
499 	if (data)
500 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
501 
502 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
503 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
504 			return 0;
505 		delay(1);
506 	}
507 
508 	return 1;
509 }
510 
511 int
512 yds_match(parent, match, aux)
513 	struct device *parent;
514 	struct cfdata *match;
515 	void *aux;
516 {
517 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
518 
519 	switch (PCI_VENDOR(pa->pa_id)) {
520 	case PCI_VENDOR_YAMAHA:
521 		switch (PCI_PRODUCT(pa->pa_id)) {
522 		case PCI_PRODUCT_YAMAHA_YMF724:
523 		case PCI_PRODUCT_YAMAHA_YMF740:
524 		case PCI_PRODUCT_YAMAHA_YMF740C:
525 		case PCI_PRODUCT_YAMAHA_YMF724F:
526 		case PCI_PRODUCT_YAMAHA_YMF744B:
527 		case PCI_PRODUCT_YAMAHA_YMF754:
528 			return (1);
529 		}
530 		break;
531 	}
532 
533 	return (0);
534 }
535 
536 /*
537  * This routine is called after all the ISA devices are configured,
538  * to avoid conflict.
539  */
540 static void
541 yds_configure_legacy (arg)
542 	struct device *arg;
543 #define FLEXIBLE	(sc->sc_flags & YDS_CAP_LEGACY_FLEXIBLE)
544 #define SELECTABLE	(sc->sc_flags & YDS_CAP_LEGACY_SELECTABLE)
545 {
546 	struct yds_softc *sc = (struct yds_softc*) arg;
547 	pcireg_t reg;
548 	struct device *dev;
549 	int i;
550 	bus_addr_t opl_addrs[] = {0x388, 0x398, 0x3A0, 0x3A8};
551 	bus_addr_t mpu_addrs[] = {0x330, 0x300, 0x332, 0x334};
552 
553 	if (!FLEXIBLE && !SELECTABLE)
554 		return;
555 
556 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY);
557 	reg &= ~0x8133c03f;	/* these bits are out of interest */
558 	reg |= ((YDS_PCI_EX_LEGACY_IMOD) |
559 		(YDS_PCI_LEGACY_FMEN |
560 		 YDS_PCI_LEGACY_MEN /*| YDS_PCI_LEGACY_MIEN*/));
561 	if (FLEXIBLE) {
562 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
563 		delay(100*1000);
564 	}
565 
566 	/* Look for OPL */
567 	dev = 0;
568 	for (i = 0; i < sizeof(opl_addrs) / sizeof(bus_addr_t); i++) {
569 		if (SELECTABLE) {
570 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
571 				       YDS_PCI_LEGACY, reg | (i << (0+16)));
572 			delay(100*1000);	/* wait 100ms */
573 		} else
574 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
575 				       YDS_PCI_FM_BA, opl_addrs[i]);
576 		if (bus_space_map(sc->sc_opl_iot,
577 				  opl_addrs[i], 4, 0, &sc->sc_opl_ioh) == 0) {
578 			struct audio_attach_args aa;
579 
580 			aa.type = AUDIODEV_TYPE_OPL;
581 			aa.hwif = aa.hdl = NULL;
582 			dev = config_found(&sc->sc_dev, &aa, audioprint);
583 			if (dev == 0)
584 				bus_space_unmap(sc->sc_opl_iot,
585 						sc->sc_opl_ioh, 4);
586 			else {
587 				if (SELECTABLE)
588 					reg |= (i << (0+16));
589 				break;
590 			}
591 		}
592 	}
593 	if (dev == 0) {
594 		reg &= ~YDS_PCI_LEGACY_FMEN;
595 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
596 			       YDS_PCI_LEGACY, reg);
597 	} else {
598 		/* Max. volume */
599 		YWRITE4(sc, YDS_LEGACY_OUT_VOLUME, 0x3fff3fff);
600 		YWRITE4(sc, YDS_LEGACY_REC_VOLUME, 0x3fff3fff);
601 	}
602 
603 	/* Look for MPU */
604 	dev = 0;
605 	for (i = 0; i < sizeof(mpu_addrs) / sizeof(bus_addr_t); i++) {
606 		if (SELECTABLE)
607 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
608 				       YDS_PCI_LEGACY, reg | (i << (4+16)));
609 		else
610 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
611 				       YDS_PCI_MPU_BA, mpu_addrs[i]);
612 		if (bus_space_map(sc->sc_mpu_iot,
613 				  mpu_addrs[i], 2, 0, &sc->sc_mpu_ioh) == 0) {
614 			struct audio_attach_args aa;
615 
616 			aa.type = AUDIODEV_TYPE_MPU;
617 			aa.hwif = aa.hdl = NULL;
618 			dev = config_found(&sc->sc_dev, &aa, audioprint);
619 			if (dev == 0)
620 				bus_space_unmap(sc->sc_mpu_iot,
621 						sc->sc_mpu_ioh, 2);
622 			else {
623 				if (SELECTABLE)
624 					reg |= (i << (4+16));
625 				break;
626 			}
627 		}
628 	}
629 	if (dev == 0) {
630 		reg &= ~(YDS_PCI_LEGACY_MEN | YDS_PCI_LEGACY_MIEN);
631 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
632 	}
633 	sc->sc_mpu = dev;
634 }
635 #undef FLEXIBLE
636 #undef SELECTABLE
637 
638 void
639 yds_attach(parent, self, aux)
640 	struct device *parent;
641 	struct device *self;
642 	void *aux;
643 {
644 	struct yds_softc *sc = (struct yds_softc *)self;
645 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
646 	pci_chipset_tag_t pc = pa->pa_pc;
647 	char const *intrstr;
648 	pci_intr_handle_t ih;
649 	pcireg_t reg;
650 	struct yds_codec_softc *codec;
651 	char devinfo[256];
652 	mixer_ctrl_t ctl;
653 	int i, r, to;
654 	int revision;
655 	int ac97_id2;
656 
657 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
658 	revision = PCI_REVISION(pa->pa_class);
659 	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
660 
661 	/* Map register to memory */
662 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
663 			   &sc->memt, &sc->memh, NULL, NULL)) {
664 		printf("%s: can't map memory space\n", sc->sc_dev.dv_xname);
665 		return;
666 	}
667 
668 	/* Map and establish the interrupt. */
669 	if (pci_intr_map(pa, &ih)) {
670 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
671 		return;
672 	}
673 	intrstr = pci_intr_string(pc, ih);
674 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc);
675 	if (sc->sc_ih == NULL) {
676 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
677 		if (intrstr != NULL)
678 			printf(" at %s", intrstr);
679 		printf("\n");
680 		return;
681 	}
682 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
683 
684 	sc->sc_dmatag = pa->pa_dmat;
685 	sc->sc_pc = pc;
686 	sc->sc_pcitag = pa->pa_tag;
687 	sc->sc_id = pa->pa_id;
688 	sc->sc_flags = yds_get_dstype(sc->sc_id);
689 #ifdef AUDIO_DEBUG
690 	if (ydsdebug) {
691 		char bits[80];
692 
693 		printf("%s: chip has %s\n", sc->sc_dev.dv_xname,
694 		       bitmask_snprintf(sc->sc_flags, YDS_CAP_BITS, bits,
695 					sizeof(bits)));
696 	}
697 #endif
698 
699 	/* Disable legacy mode */
700 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_LEGACY);
701 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_LEGACY,
702 		       reg & YDS_PCI_LEGACY_LAD);
703 
704 	/* Enable the device. */
705 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
706 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
707 		PCI_COMMAND_MASTER_ENABLE);
708 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
709 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
710 
711 	/* Mute all volumes */
712 	for (i = 0x80; i < 0xc0; i += 2)
713 		YWRITE2(sc, i, 0);
714 
715 	/* Download microcode */
716 	if (yds_download_mcode(sc)) {
717 		printf("%s: download microcode failed\n", sc->sc_dev.dv_xname);
718 		return;
719 	}
720 	/* Allocate DMA buffers */
721 	if (yds_allocate_slots(sc)) {
722 		printf("%s: could not allocate slots\n", sc->sc_dev.dv_xname);
723 		return;
724 	}
725 
726 	/* Warm reset */
727 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
728 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_WRST);
729 	delay(50000);
730 
731 	/*
732 	 * Detect primary/secondary AC97
733 	 *	YMF754 Hardware Specification Rev 1.01 page 24
734 	 */
735 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
736 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
737 	delay(400000);		/* Needed for 740C. */
738 
739 	/* Primary */
740 	for (to = 0; to < AC97_TIMEOUT; to++) {
741 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
742 			break;
743 		delay(1);
744 	}
745 	if (to == AC97_TIMEOUT) {
746 		printf("%s: no AC97 avaliable\n", sc->sc_dev.dv_xname);
747 		return;
748 	}
749 
750 	/* Secondary */
751 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
752 	ac97_id2 = -1;
753 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
754 		goto detected;
755 #if 0				/* reset secondary... */
756 	YWRITE2(sc, YDS_GPIO_OCTRL,
757 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
758 	YWRITE2(sc, YDS_GPIO_FUNCE,
759 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
760 #endif
761 	for (to = 0; to < AC97_TIMEOUT; to++) {
762 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
763 			break;
764 		delay(1);
765 	}
766 	if (to < AC97_TIMEOUT) {
767 		/* detect id */
768 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
769 			YWRITE2(sc, AC97_CMD_ADDR,
770 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
771 
772 			for (to = 0; to < AC97_TIMEOUT; to++) {
773 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
774 				    == 0)
775 					goto detected;
776 				delay(1);
777 			}
778 		}
779 		if (ac97_id2 == 4)
780 			ac97_id2 = -1;
781 detected:
782 		;
783 	}
784 
785 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_CRST);
786 	delay (20);
787 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
788 	delay (400000);
789 	for (to = 0; to < AC97_TIMEOUT; to++) {
790 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
791 			break;
792 		delay(1);
793 	}
794 
795 	/*
796 	 * Attach ac97 codec
797 	 */
798 	for (i = 0; i < 2; i++) {
799 		static struct {
800 			int data;
801 			int addr;
802 		} statregs[] = {
803 			{AC97_STAT_DATA1, AC97_STAT_ADDR1},
804 			{AC97_STAT_DATA2, AC97_STAT_ADDR2},
805 		};
806 
807 		if (i == 1 && ac97_id2 == -1)
808 			break;		/* secondary ac97 not available */
809 
810 		codec = &sc->sc_codec[i];
811 		memcpy(&codec->sc_dev, &sc->sc_dev, sizeof(codec->sc_dev));
812 		codec->sc = sc;
813 		codec->id = i == 1 ? ac97_id2 : 0;
814 		codec->status_data = statregs[i].data;
815 		codec->status_addr = statregs[i].addr;
816 		codec->host_if.arg = codec;
817 		codec->host_if.attach = yds_attach_codec;
818 		codec->host_if.read = yds_read_codec;
819 		codec->host_if.write = yds_write_codec;
820 		codec->host_if.reset = yds_reset_codec;
821 
822 		if ((r = ac97_attach(&codec->host_if)) != 0) {
823 			printf("%s: can't attach codec (error 0x%X)\n",
824 			       sc->sc_dev.dv_xname, r);
825 			return;
826 		}
827 	}
828 
829 	/* Just enable the DAC and master volumes by default */
830 	ctl.type = AUDIO_MIXER_ENUM;
831 	ctl.un.ord = 0;  /* off */
832 	ctl.dev = yds_get_portnum_by_name(sc, AudioCoutputs,
833 					  AudioNmaster, AudioNmute);
834 	yds_mixer_set_port(sc, &ctl);
835 	ctl.dev = yds_get_portnum_by_name(sc, AudioCinputs,
836 					  AudioNdac, AudioNmute);
837 	yds_mixer_set_port(sc, &ctl);
838 	ctl.dev = yds_get_portnum_by_name(sc, AudioCinputs,
839 					  AudioNcd, AudioNmute);
840 	yds_mixer_set_port(sc, &ctl);
841 	ctl.dev = yds_get_portnum_by_name(sc, AudioCrecord,
842 					  AudioNvolume, AudioNmute);
843 	yds_mixer_set_port(sc, &ctl);
844 
845 	ctl.dev = yds_get_portnum_by_name(sc, AudioCrecord,
846 					  AudioNsource, NULL);
847 	ctl.type = AUDIO_MIXER_ENUM;
848 	ctl.un.ord = 0;
849 	yds_mixer_set_port(sc, &ctl);
850 
851 	/* Set a reasonable default volume */
852 	ctl.type = AUDIO_MIXER_VALUE;
853 	ctl.un.value.num_channels = 2;
854 	ctl.un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
855 	ctl.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = 127;
856 
857 	ctl.dev = sc->sc_codec[0].codec_if->vtbl->get_portnum_by_name(
858 	    sc->sc_codec[0].codec_if, AudioCoutputs, AudioNmaster, NULL);
859 	yds_mixer_set_port(sc, &ctl);
860 
861 	audio_attach_mi(&yds_hw_if, sc, &sc->sc_dev);
862 
863 	sc->sc_legacy_iot = pa->pa_iot;
864 	config_defer((struct device*) sc, yds_configure_legacy);
865 }
866 
867 int
868 yds_attach_codec(sc_, codec_if)
869 	void *sc_;
870 	struct ac97_codec_if *codec_if;
871 {
872 	struct yds_codec_softc *sc = sc_;
873 
874 	sc->codec_if = codec_if;
875 	return 0;
876 }
877 
878 static int
879 yds_ready_codec(sc)
880 	struct yds_codec_softc *sc;
881 {
882 	int to;
883 
884 	for (to = 0; to < AC97_TIMEOUT; to++) {
885 		if ((YREAD2(sc->sc, sc->status_addr) & AC97_BUSY) == 0)
886 			return 0;
887 		delay(1);
888 	}
889 
890 	return 1;
891 }
892 
893 int
894 yds_read_codec(sc_, reg, data)
895 	void *sc_;
896 	u_int8_t reg;
897 	u_int16_t *data;
898 {
899 	struct yds_codec_softc *sc = sc_;
900 
901 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);
902 
903 	if (yds_ready_codec(sc)) {
904 		printf("%s: yds_read_codec timeout\n",
905 		       sc->sc->sc_dev.dv_xname);
906 		return EIO;
907 	}
908 
909 	*data = YREAD2(sc->sc, sc->status_data);
910 
911 	return 0;
912 }
913 
914 int
915 yds_write_codec(sc_, reg, data)
916 	void *sc_;
917 	u_int8_t reg;
918 	u_int16_t data;
919 {
920 	struct yds_codec_softc *sc = sc_;
921 
922 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_WRITE | AC97_ID(sc->id) | reg);
923 	YWRITE2(sc->sc, AC97_CMD_DATA, data);
924 
925 	if (yds_ready_codec(sc)) {
926 		printf("%s: yds_write_codec timeout\n",
927 			sc->sc->sc_dev.dv_xname);
928 		return EIO;
929 	}
930 
931 	return 0;
932 }
933 
934 /*
935  * XXX: Must handle the secondary differntly!!
936  */
937 void
938 yds_reset_codec(sc_)
939 	void *sc_;
940 {
941 	struct yds_codec_softc *codec = sc_;
942 	struct yds_softc *sc = codec->sc;
943 	pcireg_t reg;
944 
945 	/* reset AC97 codec */
946 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
947 	if (reg & 0x03) {
948 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
949 			       YDS_PCI_DSCTRL, reg & ~0x03);
950 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
951 			       YDS_PCI_DSCTRL, reg | 0x03);
952 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
953 			       YDS_PCI_DSCTRL, reg & ~0x03);
954 		delay(50000);
955 	}
956 
957 	yds_ready_codec(sc_);
958 }
959 
960 int
961 yds_intr(p)
962 	void *p;
963 {
964 	struct yds_softc *sc = p;
965 	u_int status;
966 
967 	status = YREAD4(sc, YDS_STATUS);
968 	DPRINTFN(1, ("yds_intr: status=%08x\n", status));
969 	if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
970 #if NMPU > 0
971 		if (sc->sc_mpu)
972 			return mpu_intr(sc->sc_mpu);
973 #endif
974 		return 0;
975 	}
976 
977 	if (status & YDS_STAT_TINT) {
978 		YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
979 		printf ("yds_intr: timeout!\n");
980 	}
981 
982 	if (status & YDS_STAT_INT) {
983 		int nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
984 
985 		/* Clear interrupt flag */
986 		YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
987 
988 		/* Buffer for the next frame is always ready. */
989 		YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
990 
991 		if (sc->sc_play.intr) {
992 			u_int dma, cpu, blk, len;
993 
994 			/* Sync play slot control data */
995 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
996 					sc->pbankoff,
997 					sizeof(struct play_slot_ctrl_bank)*
998 					    (*sc->ptbl)*
999 					    N_PLAY_SLOT_CTRL_BANK,
1000 					BUS_DMASYNC_POSTWRITE|
1001 					BUS_DMASYNC_POSTREAD);
1002 			dma = sc->pbankp[nbank]->pgstart * sc->sc_play.factor;
1003 			cpu = sc->sc_play.offset;
1004 			blk = sc->sc_play.blksize;
1005 			len = sc->sc_play.length;
1006 
1007 			if (((dma > cpu) && (dma - cpu > blk * 2)) ||
1008 			    ((cpu > dma) && (dma + len - cpu > blk * 2))) {
1009 				/* We can fill the next block */
1010 				/* Sync ring buffer for previous write */
1011 				bus_dmamap_sync(sc->sc_dmatag,
1012 						sc->sc_play.dma->map,
1013 						cpu, blk,
1014 						BUS_DMASYNC_POSTWRITE);
1015 				sc->sc_play.intr(sc->sc_play.intr_arg);
1016 				sc->sc_play.offset += blk;
1017 				if (sc->sc_play.offset >= len) {
1018 					sc->sc_play.offset -= len;
1019 #ifdef DIAGNOSTIC
1020 					if (sc->sc_play.offset != 0)
1021 						printf ("Audio ringbuffer botch\n");
1022 #endif
1023 				}
1024 				/* Sync ring buffer for next write */
1025 				bus_dmamap_sync(sc->sc_dmatag,
1026 						sc->sc_play.dma->map,
1027 						cpu, blk,
1028 						BUS_DMASYNC_PREWRITE);
1029 			}
1030 		}
1031 		if (sc->sc_rec.intr) {
1032 			u_int dma, cpu, blk, len;
1033 
1034 			/* Sync rec slot control data */
1035 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1036 					sc->rbankoff,
1037 					sizeof(struct rec_slot_ctrl_bank)*
1038 					    N_REC_SLOT_CTRL*
1039 					    N_REC_SLOT_CTRL_BANK,
1040 					BUS_DMASYNC_POSTWRITE|
1041 					BUS_DMASYNC_POSTREAD);
1042 			dma = sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr;
1043 			cpu = sc->sc_rec.offset;
1044 			blk = sc->sc_rec.blksize;
1045 			len = sc->sc_rec.length;
1046 
1047 			if (((dma > cpu) && (dma - cpu > blk * 2)) ||
1048 			    ((cpu > dma) && (dma + len - cpu > blk * 2))) {
1049 				/* We can drain the current block */
1050 				/* Sync ring buffer first */
1051 				bus_dmamap_sync(sc->sc_dmatag,
1052 						sc->sc_rec.dma->map,
1053 						cpu, blk,
1054 						BUS_DMASYNC_POSTREAD);
1055 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
1056 				sc->sc_rec.offset += blk;
1057 				if (sc->sc_rec.offset >= len) {
1058 					sc->sc_rec.offset -= len;
1059 #ifdef DIAGNOSTIC
1060 					if (sc->sc_rec.offset != 0)
1061 						printf ("Audio ringbuffer botch\n");
1062 #endif
1063 				}
1064 				/* Sync ring buffer for next read */
1065 				bus_dmamap_sync(sc->sc_dmatag,
1066 						sc->sc_rec.dma->map,
1067 						cpu, blk,
1068 						BUS_DMASYNC_PREREAD);
1069 			}
1070 		}
1071 	}
1072 
1073 	return 1;
1074 }
1075 
1076 int
1077 yds_allocmem(sc, size, align, p)
1078 	struct yds_softc *sc;
1079 	size_t size;
1080 	size_t align;
1081 	struct yds_dma *p;
1082 {
1083 	int error;
1084 
1085 	p->size = size;
1086 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
1087 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
1088 				 &p->nsegs, BUS_DMA_NOWAIT);
1089 	if (error)
1090 		return (error);
1091 
1092 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
1093 			       &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
1094 	if (error)
1095 		goto free;
1096 
1097 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
1098 				  0, BUS_DMA_NOWAIT, &p->map);
1099 	if (error)
1100 		goto unmap;
1101 
1102 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
1103 				BUS_DMA_NOWAIT);
1104 	if (error)
1105 		goto destroy;
1106 	return (0);
1107 
1108 destroy:
1109 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1110 unmap:
1111 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1112 free:
1113 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1114 	return (error);
1115 }
1116 
1117 int
1118 yds_freemem(sc, p)
1119 	struct yds_softc *sc;
1120 	struct yds_dma *p;
1121 {
1122 	bus_dmamap_unload(sc->sc_dmatag, p->map);
1123 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1124 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1125 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1126 	return 0;
1127 }
1128 
1129 int
1130 yds_open(addr, flags)
1131 	void *addr;
1132 	int flags;
1133 {
1134 	struct yds_softc *sc = addr;
1135 	int mode;
1136 
1137 	/* Select bank 0. */
1138 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
1139 
1140 	/* Start the DSP operation. */
1141 	mode = YREAD4(sc, YDS_MODE);
1142 	mode |= YDS_MODE_ACTV;
1143 	mode &= ~YDS_MODE_ACTV2;
1144 	YWRITE4(sc, YDS_MODE, mode);
1145 
1146 	return 0;
1147 }
1148 
1149 /*
1150  * Close function is called at splaudio().
1151  */
1152 void
1153 yds_close(addr)
1154 	void *addr;
1155 {
1156 	struct yds_softc *sc = addr;
1157 
1158 	yds_halt_output(sc);
1159 	yds_halt_input(sc);
1160 	yds_halt(sc);
1161 }
1162 
1163 int
1164 yds_query_encoding(addr, fp)
1165 	void *addr;
1166 	struct audio_encoding *fp;
1167 {
1168 	switch (fp->index) {
1169 	case 0:
1170 		strcpy(fp->name, AudioEulinear);
1171 		fp->encoding = AUDIO_ENCODING_ULINEAR;
1172 		fp->precision = 8;
1173 		fp->flags = 0;
1174 		return (0);
1175 	case 1:
1176 		strcpy(fp->name, AudioEmulaw);
1177 		fp->encoding = AUDIO_ENCODING_ULAW;
1178 		fp->precision = 8;
1179 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1180 		return (0);
1181 	case 2:
1182 		strcpy(fp->name, AudioEalaw);
1183 		fp->encoding = AUDIO_ENCODING_ALAW;
1184 		fp->precision = 8;
1185 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1186 		return (0);
1187 	case 3:
1188 		strcpy(fp->name, AudioEslinear);
1189 		fp->encoding = AUDIO_ENCODING_SLINEAR;
1190 		fp->precision = 8;
1191 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1192 		return (0);
1193 	case 4:
1194 		strcpy(fp->name, AudioEslinear_le);
1195 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
1196 		fp->precision = 16;
1197 		fp->flags = 0;
1198 		return (0);
1199 	case 5:
1200 		strcpy(fp->name, AudioEulinear_le);
1201 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
1202 		fp->precision = 16;
1203 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1204 		return (0);
1205 	case 6:
1206 		strcpy(fp->name, AudioEslinear_be);
1207 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
1208 		fp->precision = 16;
1209 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1210 		return (0);
1211 	case 7:
1212 		strcpy(fp->name, AudioEulinear_be);
1213 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
1214 		fp->precision = 16;
1215 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1216 		return (0);
1217 	default:
1218 		return (EINVAL);
1219 	}
1220 }
1221 
1222 int
1223 yds_set_params(addr, setmode, usemode, play, rec)
1224 	void *addr;
1225 	int setmode, usemode;
1226 	struct audio_params *play, *rec;
1227 {
1228 	struct audio_params *p;
1229 	int mode;
1230 
1231 	for (mode = AUMODE_RECORD; mode != -1;
1232 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
1233 		if ((setmode & mode) == 0)
1234 			continue;
1235 
1236 		p = mode == AUMODE_PLAY ? play : rec;
1237 
1238 		if (p->sample_rate < 4000 || p->sample_rate > 48000 ||
1239 		    (p->precision != 8 && p->precision != 16) ||
1240 		    (p->channels != 1 && p->channels != 2))
1241 			return (EINVAL);
1242 
1243 		p->factor = 1;
1244 		p->sw_code = 0;
1245 		switch (p->encoding) {
1246 		case AUDIO_ENCODING_SLINEAR_BE:
1247 			if (p->precision == 16)
1248 				p->sw_code = swap_bytes;
1249 			else
1250 				p->sw_code = change_sign8;
1251 			break;
1252 		case AUDIO_ENCODING_SLINEAR_LE:
1253 			if (p->precision != 16)
1254 				p->sw_code = change_sign8;
1255 			break;
1256 		case AUDIO_ENCODING_ULINEAR_BE:
1257 			if (p->precision == 16) {
1258 				if (mode == AUMODE_PLAY)
1259 					p->sw_code = swap_bytes_change_sign16_le;
1260 				else
1261 					p->sw_code = change_sign16_swap_bytes_le;
1262 			}
1263 			break;
1264 		case AUDIO_ENCODING_ULINEAR_LE:
1265 			if (p->precision == 16)
1266 				p->sw_code = change_sign16_le;
1267 			break;
1268 		case AUDIO_ENCODING_ULAW:
1269 			if (mode == AUMODE_PLAY) {
1270 				p->factor = 2;
1271 				p->precision = 16;
1272 				p->sw_code = mulaw_to_slinear16_le;
1273 			} else
1274 				p->sw_code = ulinear8_to_mulaw;
1275 			break;
1276 		case AUDIO_ENCODING_ALAW:
1277 			if (mode == AUMODE_PLAY) {
1278 				p->factor = 2;
1279 				p->precision = 16;
1280 				p->sw_code = alaw_to_slinear16_le;
1281 			} else
1282 				p->sw_code = ulinear8_to_alaw;
1283 			break;
1284 		default:
1285 			return (EINVAL);
1286 		}
1287 	}
1288 
1289 	return 0;
1290 }
1291 
1292 int
1293 yds_round_blocksize(addr, blk)
1294 	void *addr;
1295 	int blk;
1296 {
1297 	/*
1298 	 * Block size must be bigger than a frame.
1299 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
1300 	 */
1301 	if (blk < 1024)
1302 		blk = 1024;
1303 
1304 	return blk & ~4;
1305 }
1306 
1307 static u_int32_t
1308 yds_get_lpfq(sample_rate)
1309 	u_int sample_rate;
1310 {
1311 	int i;
1312 	static struct lpfqt {
1313 		u_int rate;
1314 		u_int32_t lpfq;
1315 	} lpfqt[] = {
1316 		{8000,  0x32020000},
1317 		{11025, 0x31770000},
1318 		{16000, 0x31390000},
1319 		{22050, 0x31c90000},
1320 		{32000, 0x33d00000},
1321 		{48000, 0x40000000},
1322 		{0, 0}
1323 	};
1324 
1325 	if (sample_rate == 44100)		/* for P44 slot? */
1326 		return 0x370A0000;
1327 
1328 	for (i = 0; lpfqt[i].rate != 0; i++)
1329 		if (sample_rate <= lpfqt[i].rate)
1330 			break;
1331 
1332 	return lpfqt[i].lpfq;
1333 }
1334 
1335 static u_int32_t
1336 yds_get_lpfk(sample_rate)
1337 	u_int sample_rate;
1338 {
1339 	int i;
1340 	static struct lpfkt {
1341 		u_int rate;
1342 		u_int32_t lpfk;
1343 	} lpfkt[] = {
1344 		{8000,  0x18b20000},
1345 		{11025, 0x20930000},
1346 		{16000, 0x2b9a0000},
1347 		{22050, 0x35a10000},
1348 		{32000, 0x3eaa0000},
1349 		{48000, 0x40000000},
1350 		{0, 0}
1351 	};
1352 
1353 	if (sample_rate == 44100)		/* for P44 slot? */
1354 		return 0x46460000;
1355 
1356 	for (i = 0; lpfkt[i].rate != 0; i++)
1357 		if (sample_rate <= lpfkt[i].rate)
1358 			break;
1359 
1360 	return lpfkt[i].lpfk;
1361 }
1362 
1363 int
1364 yds_trigger_output(addr, start, end, blksize, intr, arg, param)
1365 	void *addr;
1366 	void *start, *end;
1367 	int blksize;
1368 	void (*intr) __P((void *));
1369 	void *arg;
1370 	struct audio_params *param;
1371 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
1372 {
1373 	struct yds_softc *sc = addr;
1374 	struct yds_dma *p;
1375 	struct play_slot_ctrl_bank *psb;
1376 	const u_int gain = 0x40000000;
1377 	bus_addr_t s;
1378 	size_t l;
1379 	int i;
1380 	int p44, channels;
1381 
1382 #ifdef DIAGNOSTIC
1383 	if (sc->sc_play.intr)
1384 		panic("yds_trigger_output: already running");
1385 #endif
1386 
1387 	sc->sc_play.intr = intr;
1388 	sc->sc_play.intr_arg = arg;
1389 	sc->sc_play.offset = 0;
1390 	sc->sc_play.blksize = blksize;
1391 
1392 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
1393 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1394 
1395 	p = yds_find_dma(sc, start);
1396 	if (!p) {
1397 		printf("yds_trigger_output: bad addr %p\n", start);
1398 		return (EINVAL);
1399 	}
1400 	sc->sc_play.dma = p;
1401 
1402 #ifdef YDS_USE_P44
1403 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
1404 	if (P44)
1405 		p44 = ((param->sample_rate == 44100) &&
1406 		       (param->channels == 2) &&
1407 		       (param->precision == 16));
1408 	else
1409 #endif
1410 		p44 = 0;
1411 	channels = p44 ? 1 : param->channels;
1412 
1413 	s = DMAADDR(p);
1414 	l = ((char *)end - (char *)start);
1415 	sc->sc_play.length = l;
1416 
1417 	*sc->ptbl = channels;	/* Num of play */
1418 
1419 	sc->sc_play.factor = 1;
1420 	if (param->channels == 2)
1421 		sc->sc_play.factor *= 2;
1422 	if (param->precision != 8)
1423 		sc->sc_play.factor *= 2;
1424 	l /= sc->sc_play.factor;
1425 
1426 	psb = sc->pbankp[0];
1427 	memset(psb, 0, sizeof(*psb));
1428 	psb->format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
1429 		       (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
1430 		       (p44 ? PSLT_FORMAT_SRC441 : 0));
1431 	psb->pgbase = s;
1432 	psb->pgloopend = l;
1433 	if (!p44) {
1434 		psb->pgdeltaend = (param->sample_rate * 65536 / 48000) << 12;
1435 		psb->lpfkend = yds_get_lpfk(param->sample_rate);
1436 		psb->eggainend = gain;
1437 		psb->lpfq = yds_get_lpfq(param->sample_rate);
1438 		psb->pgdelta = psb->pgdeltaend;
1439 		psb->lpfk = yds_get_lpfk(param->sample_rate);
1440 		psb->eggain = gain;
1441 	}
1442 
1443 	for (i = 0; i < channels; i++) {
1444 		/* i == 0: left or mono, i == 1: right */
1445 		psb = sc->pbankp[i*2];
1446 		if (i)
1447 			/* copy from left */
1448 			*psb = *(sc->pbankp[0]);
1449 		if (channels == 2) {
1450 			/* stereo */
1451 			if (i == 0) {
1452 				psb->lchgain = psb->lchgainend = gain;
1453 			} else {
1454 				psb->lchgain = psb->lchgainend = 0;
1455 				psb->rchgain = psb->rchgainend = gain;
1456 				psb->format |= PSLT_FORMAT_RCH;
1457 			}
1458 		} else if (!p44) {
1459 			/* mono */
1460 			psb->lchgain = psb->rchgain = gain;
1461 			psb->lchgainend = psb->rchgainend = gain;
1462 		}
1463 		/* copy to the other bank */
1464 		*(sc->pbankp[i*2+1]) = *psb;
1465 	}
1466 
1467 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
1468 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
1469 
1470 	if (p44)
1471 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
1472 	else
1473 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
1474 
1475 	/* Now the play slot for the next frame is set up!! */
1476 	/* Sync play slot control data for both directions */
1477 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1478 			sc->ptbloff,
1479 			sizeof(struct play_slot_ctrl_bank) *
1480 			    channels * N_PLAY_SLOT_CTRL_BANK,
1481 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1482 	/* Sync ring buffer */
1483 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1484 			BUS_DMASYNC_PREWRITE);
1485 	/* HERE WE GO!! */
1486 	YWRITE4(sc, YDS_MODE,
1487 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1488 
1489 	return 0;
1490 }
1491 #undef P44
1492 
1493 int
1494 yds_trigger_input(addr, start, end, blksize, intr, arg, param)
1495 	void *addr;
1496 	void *start, *end;
1497 	int blksize;
1498 	void (*intr) __P((void *));
1499 	void *arg;
1500 	struct audio_params *param;
1501 {
1502 	struct yds_softc *sc = addr;
1503 	struct yds_dma *p;
1504 	u_int srate, format;
1505 	struct rec_slot_ctrl_bank *rsb;
1506 	bus_addr_t s;
1507 	size_t l;
1508 
1509 #ifdef DIAGNOSTIC
1510 	if (sc->sc_rec.intr)
1511 		panic("yds_trigger_input: already running");
1512 #endif
1513 	sc->sc_rec.intr = intr;
1514 	sc->sc_rec.intr_arg = arg;
1515 	sc->sc_rec.offset = 0;
1516 	sc->sc_rec.blksize = blksize;
1517 
1518 	DPRINTFN(1, ("yds_trigger_input: "
1519 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1520 	    addr, start, end, blksize, intr, arg));
1521 	DPRINTFN(1, (" parameters: rate=%lu, precision=%u, channels=%u\n",
1522 	    param->sample_rate, param->precision, param->channels));
1523 
1524 	p = yds_find_dma(sc, start);
1525 	if (!p) {
1526 		printf("yds_trigger_input: bad addr %p\n", start);
1527 		return (EINVAL);
1528 	}
1529 	sc->sc_rec.dma = p;
1530 
1531 	s = DMAADDR(p);
1532 	l = ((char *)end - (char *)start);
1533 	sc->sc_rec.length = l;
1534 
1535 	sc->sc_rec.factor = 1;
1536 	if (param->channels == 2)
1537 		sc->sc_rec.factor *= 2;
1538 	if (param->precision != 8)
1539 		sc->sc_rec.factor *= 2;
1540 
1541 	rsb = &sc->rbank[0];
1542 	memset(rsb, 0, sizeof(*rsb));
1543 	rsb->pgbase = s;
1544 	rsb->pgloopendadr = l;
1545 	/* Seems all 4 banks must be set up... */
1546 	sc->rbank[1] = *rsb;
1547 	sc->rbank[2] = *rsb;
1548 	sc->rbank[3] = *rsb;
1549 
1550 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
1551 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
1552 	srate = 48000 * 4096 / param->sample_rate - 1;
1553 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
1554 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
1555 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
1556 #ifdef YDS_USE_REC_SLOT
1557 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
1558 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
1559 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
1560 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
1561 	YWRITE4(sc, YDS_REC_FORMAT, format);
1562 #else
1563 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
1564 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
1565 	YWRITE4(sc, YDS_ADC_FORMAT, format);
1566 #endif
1567 	/* Now the rec slot for the next frame is set up!! */
1568 	/* Sync record slot control data */
1569 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1570 			sc->rbankoff,
1571 			sizeof(struct rec_slot_ctrl_bank)*
1572 			    N_REC_SLOT_CTRL*
1573 			    N_REC_SLOT_CTRL_BANK,
1574 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1575 	/* Sync ring buffer */
1576 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1577 			BUS_DMASYNC_PREREAD);
1578 	/* HERE WE GO!! */
1579 	YWRITE4(sc, YDS_MODE,
1580 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1581 
1582 	return 0;
1583 }
1584 
1585 static int
1586 yds_halt(sc)
1587 	struct yds_softc *sc;
1588 {
1589 	u_int32_t mode;
1590 
1591 	/* Stop the DSP operation. */
1592 	mode = YREAD4(sc, YDS_MODE);
1593 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
1594 
1595 	/* Paranoia...  mute all */
1596 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
1597 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
1598 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
1599 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
1600 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
1601 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
1602 
1603 	return 0;
1604 }
1605 
1606 int
1607 yds_halt_output(addr)
1608 	void *addr;
1609 {
1610 	struct yds_softc *sc = addr;
1611 
1612 	DPRINTF(("yds: yds_halt_output\n"));
1613 	if (sc->sc_play.intr) {
1614 		sc->sc_play.intr = 0;
1615 		/* Sync play slot control data */
1616 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1617 				sc->pbankoff,
1618 				sizeof(struct play_slot_ctrl_bank)*
1619 				    (*sc->ptbl)*N_PLAY_SLOT_CTRL_BANK,
1620 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1621 		/* Stop the play slot operation */
1622 		sc->pbankp[0]->status =
1623 		sc->pbankp[1]->status =
1624 		sc->pbankp[2]->status =
1625 		sc->pbankp[3]->status = 1;
1626 		/* Sync ring buffer */
1627 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
1628 				0, sc->sc_play.length, BUS_DMASYNC_POSTWRITE);
1629 	}
1630 
1631 	return 0;
1632 }
1633 
1634 int
1635 yds_halt_input(addr)
1636 	void *addr;
1637 {
1638 	struct yds_softc *sc = addr;
1639 
1640 	DPRINTF(("yds: yds_halt_input\n"));
1641 	sc->sc_rec.intr = NULL;
1642 	if (sc->sc_rec.intr) {
1643 		/* Stop the rec slot operation */
1644 		YWRITE4(sc, YDS_MAPOF_REC, 0);
1645 		sc->sc_rec.intr = 0;
1646 		/* Sync rec slot control data */
1647 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1648 				sc->rbankoff,
1649 				sizeof(struct rec_slot_ctrl_bank)*
1650 				    N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK,
1651 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1652 		/* Sync ring buffer */
1653 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
1654 				0, sc->sc_rec.length, BUS_DMASYNC_POSTREAD);
1655 	}
1656 
1657 	return 0;
1658 }
1659 
1660 int
1661 yds_getdev(addr, retp)
1662 	void *addr;
1663 	struct audio_device *retp;
1664 {
1665 	*retp = yds_device;
1666 
1667 	return 0;
1668 }
1669 
1670 int
1671 yds_mixer_set_port(addr, cp)
1672 	void *addr;
1673 	mixer_ctrl_t *cp;
1674 {
1675 	struct yds_softc *sc = addr;
1676 
1677 	return (sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
1678 	    sc->sc_codec[0].codec_if, cp));
1679 }
1680 
1681 int
1682 yds_mixer_get_port(addr, cp)
1683 	void *addr;
1684 	mixer_ctrl_t *cp;
1685 {
1686 	struct yds_softc *sc = addr;
1687 
1688 	return (sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
1689 	    sc->sc_codec[0].codec_if, cp));
1690 }
1691 
1692 int
1693 yds_query_devinfo(addr, dip)
1694 	void *addr;
1695 	mixer_devinfo_t *dip;
1696 {
1697 	struct yds_softc *sc = addr;
1698 
1699 	return (sc->sc_codec[0].codec_if->vtbl->query_devinfo(
1700 	    sc->sc_codec[0].codec_if, dip));
1701 }
1702 
1703 int
1704 yds_get_portnum_by_name(sc, class, device, qualifier)
1705 	struct yds_softc *sc;
1706 	char *class, *device, *qualifier;
1707 {
1708 	return (sc->sc_codec[0].codec_if->vtbl->get_portnum_by_name(
1709 	    sc->sc_codec[0].codec_if, class, device, qualifier));
1710 }
1711 
1712 void *
1713 yds_malloc(addr, direction, size, pool, flags)
1714 	void *addr;
1715 	int direction;
1716 	size_t size;
1717 	int pool, flags;
1718 {
1719 	struct yds_softc *sc = addr;
1720 	struct yds_dma *p;
1721 	int error;
1722 
1723 	p = malloc(sizeof(*p), pool, flags);
1724 	if (!p)
1725 		return (0);
1726 	error = yds_allocmem(sc, size, 16, p);
1727 	if (error) {
1728 		free(p, pool);
1729 		return (0);
1730 	}
1731 	p->next = sc->sc_dmas;
1732 	sc->sc_dmas = p;
1733 	return (KERNADDR(p));
1734 }
1735 
1736 void
1737 yds_free(addr, ptr, pool)
1738 	void *addr;
1739 	void *ptr;
1740 	int pool;
1741 {
1742 	struct yds_softc *sc = addr;
1743 	struct yds_dma **pp, *p;
1744 
1745 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1746 		if (KERNADDR(p) == ptr) {
1747 			yds_freemem(sc, p);
1748 			*pp = p->next;
1749 			free(p, pool);
1750 			return;
1751 		}
1752 	}
1753 }
1754 
1755 static struct yds_dma *
1756 yds_find_dma(sc, addr)
1757 	struct yds_softc *sc;
1758 	void *addr;
1759 {
1760 	struct yds_dma *p;
1761 
1762 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
1763 		;
1764 
1765 	return p;
1766 }
1767 
1768 size_t
1769 yds_round_buffersize(addr, direction, size)
1770 	void *addr;
1771 	int direction;
1772 	size_t size;
1773 {
1774 	/*
1775 	 * Buffer size should be at least twice as bigger as a frame.
1776 	 */
1777 	if (size < 1024 * 3)
1778 		size = 1024 * 3;
1779 	return (size);
1780 }
1781 
1782 paddr_t
1783 yds_mappage(addr, mem, off, prot)
1784 	void *addr;
1785 	void *mem;
1786 	off_t off;
1787 	int prot;
1788 {
1789 	struct yds_softc *sc = addr;
1790 	struct yds_dma *p;
1791 
1792 	if (off < 0)
1793 		return (-1);
1794 	p = yds_find_dma(sc, mem);
1795 	if (!p)
1796 		return (-1);
1797 	return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1798 				off, prot, BUS_DMA_WAITOK));
1799 }
1800 
1801 int
1802 yds_get_props(addr)
1803 	void *addr;
1804 {
1805 	return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1806 		AUDIO_PROP_FULLDUPLEX);
1807 }
1808