xref: /netbsd-src/sys/dev/pci/yds.c (revision 220b5c059a84c51ea44107ea8951a57ffaecdc8c)
1 /*	$NetBSD: yds.c,v 1.8 2001/11/13 07:48:49 lukem 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 1.8 2001/11/13 07:48:49 lukem Exp $");
43 
44 #include "mpu.h"
45 
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/fcntl.h>
50 #include <sys/malloc.h>
51 #include <sys/device.h>
52 #include <sys/proc.h>
53 
54 #include <dev/pci/pcidevs.h>
55 #include <dev/pci/pcireg.h>
56 #include <dev/pci/pcivar.h>
57 
58 #include <sys/audioio.h>
59 #include <dev/audio_if.h>
60 #include <dev/mulaw.h>
61 #include <dev/auconv.h>
62 #include <dev/ic/ac97reg.h>
63 #include <dev/ic/ac97var.h>
64 #include <dev/ic/mpuvar.h>
65 
66 #include <machine/bus.h>
67 #include <machine/intr.h>
68 
69 #include <dev/microcode/yds/yds_hwmcode.h>
70 #include <dev/pci/ydsreg.h>
71 #include <dev/pci/ydsvar.h>
72 
73 /* Debug */
74 #undef YDS_USE_REC_SLOT
75 #define YDS_USE_P44
76 
77 #ifdef AUDIO_DEBUG
78 # define DPRINTF(x)	if (ydsdebug) printf x
79 # define DPRINTFN(n,x)	if (ydsdebug>(n)) printf x
80 int	ydsdebug = 0;
81 #else
82 # define DPRINTF(x)
83 # define DPRINTFN(n,x)
84 #endif
85 #ifdef YDS_USE_REC_SLOT
86 # define YDS_INPUT_SLOT 0	/* REC slot = ADC + loopbacks */
87 #else
88 # define YDS_INPUT_SLOT 1	/* ADC slot */
89 #endif
90 
91 int	yds_match __P((struct device *, struct cfdata *, void *));
92 void	yds_attach __P((struct device *, struct device *, void *));
93 int	yds_intr __P((void *));
94 
95 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
96 #define KERNADDR(p) ((void *)((p)->addr))
97 
98 int	yds_allocmem __P((struct yds_softc *, size_t, size_t,
99 			  struct yds_dma *));
100 int	yds_freemem __P((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 
111 u_int16_t YREAD2(struct yds_softc *sc,bus_size_t r);
112 u_int32_t YREAD4(struct yds_softc *sc,bus_size_t r);
113 void YWRITE1(struct yds_softc *sc,bus_size_t r,u_int8_t x);
114 void YWRITE2(struct yds_softc *sc,bus_size_t r,u_int16_t x);
115 void YWRITE4(struct yds_softc *sc,bus_size_t r,u_int32_t x);
116 
117 u_int16_t YREAD2(struct yds_softc *sc,bus_size_t r)
118 {
119   DPRINTFN(5, (" YREAD2(0x%lX)\n",(unsigned long)r));
120   return bus_space_read_2(sc->memt,sc->memh,r);
121 }
122 u_int32_t YREAD4(struct yds_softc *sc,bus_size_t r)
123 {
124   DPRINTFN(5, (" YREAD4(0x%lX)\n",(unsigned long)r));
125   return bus_space_read_4(sc->memt,sc->memh,r);
126 }
127 void YWRITE1(struct yds_softc *sc,bus_size_t r,u_int8_t x)
128 {
129   DPRINTFN(5, (" YWRITE1(0x%lX,0x%lX)\n",(unsigned long)r,(unsigned long)x));
130   bus_space_write_1(sc->memt,sc->memh,r,x);
131 }
132 void YWRITE2(struct yds_softc *sc,bus_size_t r,u_int16_t x)
133 {
134   DPRINTFN(5, (" YWRITE2(0x%lX,0x%lX)\n",(unsigned long)r,(unsigned long)x));
135   bus_space_write_2(sc->memt,sc->memh,r,x);
136 }
137 void YWRITE4(struct yds_softc *sc,bus_size_t r,u_int32_t x)
138 {
139   DPRINTFN(5, (" YWRITE4(0x%lX,0x%lX)\n",(unsigned long)r,(unsigned long)x));
140   bus_space_write_4(sc->memt,sc->memh,r,x);
141 }
142 #endif
143 
144 #define	YWRITEREGION4(sc, r, x, c)	\
145 	bus_space_write_region_4((sc)->memt, (sc)->memh, (r), (x), (c) / 4)
146 
147 struct cfattach yds_ca = {
148 	sizeof(struct yds_softc), yds_match, yds_attach
149 };
150 
151 int	yds_open __P((void *, int));
152 void	yds_close __P((void *));
153 int	yds_query_encoding __P((void *, struct audio_encoding *));
154 int	yds_set_params __P((void *, int, int,
155 			    struct audio_params *, struct audio_params *));
156 int	yds_round_blocksize __P((void *, int));
157 int	yds_trigger_output __P((void *, void *, void *, int, void (*)(void *),
158 				void *, struct audio_params *));
159 int	yds_trigger_input __P((void *, void *, void *, int, void (*)(void *),
160 			       void *, struct audio_params *));
161 int	yds_halt_output __P((void *));
162 int	yds_halt_input __P((void *));
163 int	yds_getdev __P((void *, struct audio_device *));
164 int	yds_mixer_set_port __P((void *, mixer_ctrl_t *));
165 int	yds_mixer_get_port __P((void *, mixer_ctrl_t *));
166 void   *yds_malloc __P((void *, int, size_t, int, int));
167 void	yds_free __P((void *, void *, int));
168 size_t	yds_round_buffersize __P((void *, int, size_t));
169 paddr_t yds_mappage __P((void *, void *, off_t, int));
170 int	yds_get_props __P((void *));
171 int	yds_query_devinfo __P((void *addr, mixer_devinfo_t *dip));
172 
173 int     yds_attach_codec __P((void *sc, struct ac97_codec_if *));
174 int	yds_read_codec __P((void *sc, u_int8_t a, u_int16_t *d));
175 int	yds_write_codec __P((void *sc, u_int8_t a, u_int16_t d));
176 void    yds_reset_codec __P((void *sc));
177 int     yds_get_portnum_by_name __P((struct yds_softc *, char *, char *,
178 				     char *));
179 
180 static u_int yds_get_dstype __P((int));
181 static int yds_download_mcode __P((struct yds_softc *));
182 static int yds_allocate_slots __P((struct yds_softc *));
183 static void yds_configure_legacy __P((struct device *arg));
184 static void yds_enable_dsp __P((struct yds_softc *));
185 static int yds_disable_dsp __P((struct yds_softc *));
186 static int yds_ready_codec __P((struct yds_codec_softc *));
187 static int yds_halt __P((struct yds_softc *));
188 static u_int32_t yds_get_lpfq __P((u_int));
189 static u_int32_t yds_get_lpfk __P((u_int));
190 static struct yds_dma *yds_find_dma __P((struct yds_softc *, void *));
191 
192 #ifdef AUDIO_DEBUG
193 static void yds_dump_play_slot __P((struct yds_softc *, int));
194 #define	YDS_DUMP_PLAY_SLOT(n,sc,bank) \
195 	if (ydsdebug > (n)) yds_dump_play_slot(sc, bank)
196 #else
197 #define	YDS_DUMP_PLAY_SLOT(n,sc,bank)
198 #endif /* AUDIO_DEBUG */
199 
200 static struct audio_hw_if yds_hw_if = {
201 	yds_open,
202 	yds_close,
203 	NULL,
204 	yds_query_encoding,
205 	yds_set_params,
206 	yds_round_blocksize,
207 	NULL,
208 	NULL,
209 	NULL,
210 	NULL,
211 	NULL,
212 	yds_halt_output,
213 	yds_halt_input,
214 	NULL,
215 	yds_getdev,
216 	NULL,
217 	yds_mixer_set_port,
218 	yds_mixer_get_port,
219 	yds_query_devinfo,
220 	yds_malloc,
221 	yds_free,
222 	yds_round_buffersize,
223 	yds_mappage,
224 	yds_get_props,
225 	yds_trigger_output,
226 	yds_trigger_input,
227 	NULL,
228 };
229 
230 struct audio_device yds_device = {
231 	"Yamaha DS-1",
232 	"",
233 	"yds"
234 };
235 
236 const static struct {
237 	u_int	id;
238 	u_int	flags;
239 #define YDS_CAP_MCODE_1			0x0001
240 #define YDS_CAP_MCODE_1E		0x0002
241 #define YDS_CAP_LEGACY_SELECTABLE	0x0004
242 #define YDS_CAP_LEGACY_FLEXIBLE		0x0008
243 #define YDS_CAP_HAS_P44			0x0010
244 } yds_chip_capabliity_list[] = {
245 	{ PCI_PRODUCT_YAMAHA_YMF724,
246 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },
247 	/* 740[C] has only 32 slots.  But anyway we use only 2 */
248 	{ PCI_PRODUCT_YAMAHA_YMF740,
249 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },	/* XXX NOT TESTED */
250 	{ PCI_PRODUCT_YAMAHA_YMF740C,
251 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
252 	{ PCI_PRODUCT_YAMAHA_YMF724F,
253 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
254 	{ PCI_PRODUCT_YAMAHA_YMF744B,
255 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE },
256 	{ PCI_PRODUCT_YAMAHA_YMF754,
257 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE|YDS_CAP_HAS_P44 },
258 	{ 0, 0 }
259 };
260 #ifdef AUDIO_DEBUG
261 #define YDS_CAP_BITS	"\020\005P44\004LEGFLEX\003LEGSEL\002MCODE1E\001MCODE1"
262 #endif
263 
264 #ifdef AUDIO_DEBUG
265 static void
266 yds_dump_play_slot(sc, bank)
267 	struct yds_softc *sc;
268 	int bank;
269 {
270 	int i, j;
271 	u_int32_t *p;
272 	u_int32_t num;
273 	char *pa;
274 
275 	for (i = 0; i < N_PLAY_SLOTS; i++) {
276 		printf("pbankp[%d] = %p,", i*2, sc->pbankp[i*2]);
277 		printf("pbankp[%d] = %p\n", i*2+1, sc->pbankp[i*2+1]);
278 	}
279 
280 	pa = (char *)DMAADDR(&sc->sc_ctrldata) + sc->pbankoff;
281 	p = (u_int32_t *)sc->ptbl;
282 	printf("ptbl + 0: %d\n", *p++);
283 	for (i = 0; i < N_PLAY_SLOTS; i++) {
284 		printf("ptbl + %d: 0x%x, should be %p\n",
285 		       i+1, *p,
286 		       pa + i * sizeof(struct play_slot_ctrl_bank) *
287 			        N_PLAY_SLOT_CTRL_BANK);
288 		p++;
289 	}
290 
291 	num = *(u_int32_t*)sc->ptbl;
292 	printf("numofplay = %d\n", num);
293 
294 	for (i = 0; i < num; i++) {
295 		p = (u_int32_t *)sc->pbankp[i*2];
296 
297 		printf("  pbankp[%d], bank 0 : %p\n", i*2, p);
298 		for (j = 0;
299 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(u_int32_t);
300 		     j++) {
301 			printf("    0x%02x: 0x%08x\n",
302 			       (unsigned)(j * sizeof(u_int32_t)),
303 			       (unsigned)*p++);
304 		}
305 
306 		p = (u_int32_t *)sc->pbankp[i*2 + 1];
307 		printf("  pbankp[%d], bank 1 : %p\n", i*2 + 1, p);
308 		for (j = 0;
309 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(u_int32_t);
310 		     j++) {
311 			printf("    0x%02x: 0x%08x\n",
312 			       (unsigned)(j * sizeof(u_int32_t)),
313 			       (unsigned)*p++);
314 		}
315 	}
316 }
317 #endif /* AUDIO_DEBUG */
318 
319 static u_int
320 yds_get_dstype(id)
321 	int id;
322 {
323 	int i;
324 
325 	for (i = 0; yds_chip_capabliity_list[i].id; i++) {
326 		if (PCI_PRODUCT(id) == yds_chip_capabliity_list[i].id)
327 			return yds_chip_capabliity_list[i].flags;
328 	}
329 
330 	return -1;
331 }
332 
333 static int
334 yds_download_mcode(sc)
335 	struct yds_softc *sc;
336 {
337 	u_int ctrl;
338 	const u_int32_t *p;
339 	size_t size;
340 	int dstype;
341 
342 	static struct {
343 		const u_int32_t *mcode;
344 		size_t size;
345 	} ctrls[] = {
346 		{yds_ds1_ctrl_mcode, sizeof(yds_ds1_ctrl_mcode)},
347 		{yds_ds1e_ctrl_mcode, sizeof(yds_ds1e_ctrl_mcode)},
348 	};
349 
350 	if (sc->sc_flags & YDS_CAP_MCODE_1)
351 		dstype = YDS_DS_1;
352 	else if (sc->sc_flags & YDS_CAP_MCODE_1E)
353 		dstype = YDS_DS_1E;
354 	else
355 		return 1;	/* unknown */
356 
357 	if (yds_disable_dsp(sc))
358 		return 1;
359 
360 	/* Software reset */
361         YWRITE4(sc, YDS_MODE, YDS_MODE_RESET);
362         YWRITE4(sc, YDS_MODE, 0);
363 
364         YWRITE4(sc, YDS_MAPOF_REC, 0);
365         YWRITE4(sc, YDS_MAPOF_EFFECT, 0);
366         YWRITE4(sc, YDS_PLAY_CTRLBASE, 0);
367         YWRITE4(sc, YDS_REC_CTRLBASE, 0);
368         YWRITE4(sc, YDS_EFFECT_CTRLBASE, 0);
369         YWRITE4(sc, YDS_WORK_BASE, 0);
370 
371         ctrl = YREAD2(sc, YDS_GLOBAL_CONTROL);
372         YWRITE2(sc, YDS_GLOBAL_CONTROL, ctrl & ~0x0007);
373 
374 	/* Download DSP microcode. */
375 	p = yds_dsp_mcode;
376 	size = sizeof(yds_dsp_mcode);
377 	YWRITEREGION4(sc, YDS_DSP_INSTRAM, p, size);
378 
379 	/* Download CONTROL microcode. */
380 	p = ctrls[dstype].mcode;
381 	size = ctrls[dstype].size;
382 	YWRITEREGION4(sc, YDS_CTRL_INSTRAM, p, size);
383 
384 	yds_enable_dsp(sc);
385 	delay(10 * 1000);		/* nessesary on my 724F (??) */
386 
387 	return 0;
388 }
389 
390 static int
391 yds_allocate_slots(sc)
392 	struct yds_softc *sc;
393 {
394 	size_t pcs, rcs, ecs, ws, memsize;
395 	void *mp;
396 	u_int32_t da;		/* DMA address */
397 	char *va;		/* KVA */
398 	off_t cb;
399 	int i;
400 	struct yds_dma *p;
401 
402 	/* Alloc DSP Control Data */
403 	pcs = YREAD4(sc, YDS_PLAY_CTRLSIZE) * sizeof(u_int32_t);
404 	rcs = YREAD4(sc, YDS_REC_CTRLSIZE) * sizeof(u_int32_t);
405 	ecs = YREAD4(sc, YDS_EFFECT_CTRLSIZE) * sizeof(u_int32_t);
406 	ws = WORK_SIZE;
407 	YWRITE4(sc, YDS_WORK_SIZE, ws / sizeof(u_int32_t));
408 
409 	DPRINTF(("play control size : %d\n", (unsigned int)pcs));
410 	DPRINTF(("rec control size : %d\n", (unsigned int)rcs));
411 	DPRINTF(("eff control size : %d\n", (unsigned int)ecs));
412 	DPRINTF(("work size : %d\n", (unsigned int)ws));
413 #ifdef DIAGNOSTIC
414 	if (pcs != sizeof(struct play_slot_ctrl_bank)) {
415 		printf("%s: invalid play slot ctrldata %d != %d\n",
416 		       sc->sc_dev.dv_xname, (unsigned int)pcs,
417 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
418 	if (rcs != sizeof(struct rec_slot_ctrl_bank))
419 		printf("%s: invalid rec slot ctrldata %d != %d\n",
420 		       sc->sc_dev.dv_xname, (unsigned int)rcs,
421 		       (unsigned int)sizeof(struct rec_slot_ctrl_bank));
422 	}
423 #endif
424 
425 	memsize = N_PLAY_SLOTS*N_PLAY_SLOT_CTRL_BANK*pcs +
426 		  N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK*rcs + ws;
427 	memsize += (N_PLAY_SLOTS+1)*sizeof(u_int32_t);
428 
429 	p = &sc->sc_ctrldata;
430 	i = yds_allocmem(sc, memsize, 16, p);
431 	if (i) {
432 		printf("%s: couldn't alloc/map DSP DMA buffer, reason %d\n",
433 		       sc->sc_dev.dv_xname, i);
434 		free(p, M_DEVBUF);
435 		return 1;
436 	}
437 	mp = KERNADDR(p);
438 	da = DMAADDR(p);
439 
440 	DPRINTF(("mp:%p, DMA addr:%p\n",
441 		 mp, (void *)sc->sc_ctrldata.map->dm_segs[0].ds_addr));
442 
443 	memset(mp, 0, memsize);
444 
445 	/* Work space */
446         cb = 0;
447 	va = (u_int8_t *)mp;
448 	YWRITE4(sc, YDS_WORK_BASE, da + cb);
449         cb += ws;
450 
451 	/* Play control data table */
452         sc->ptbl = (u_int32_t *)(va + cb);
453 	sc->ptbloff = cb;
454         YWRITE4(sc, YDS_PLAY_CTRLBASE, da + cb);
455         cb += (N_PLAY_SLOT_CTRL + 1) * sizeof(u_int32_t);
456 
457 	/* Record slot control data */
458         sc->rbank = (struct rec_slot_ctrl_bank *)(va + cb);
459         YWRITE4(sc, YDS_REC_CTRLBASE, da + cb);
460 	sc->rbankoff = cb;
461         cb += N_REC_SLOT_CTRL * N_REC_SLOT_CTRL_BANK * rcs;
462 
463 #if 0
464 	/* Effect slot control data -- unused */
465         YWRITE4(sc, YDS_EFFECT_CTRLBASE, da + cb);
466         cb += N_EFFECT_SLOT_CTRL * N_EFFECT_SLOT_CTRL_BANK * ecs;
467 #endif
468 
469 	/* Play slot control data */
470         sc->pbankoff = cb;
471         for (i=0; i < N_PLAY_SLOT_CTRL; i++) {
472 		sc->pbankp[i*2] = (struct play_slot_ctrl_bank *)(va + cb);
473 		*(sc->ptbl + i+1) = da + cb;
474                 cb += pcs;
475 
476                 sc->pbankp[i*2+1] = (struct play_slot_ctrl_bank *)(va + cb);
477                 cb += pcs;
478         }
479 	/* Sync play control data table */
480 	bus_dmamap_sync(sc->sc_dmatag, p->map,
481 			sc->ptbloff, (N_PLAY_SLOT_CTRL+1) * sizeof(u_int32_t),
482 			BUS_DMASYNC_PREWRITE);
483 
484 	return 0;
485 }
486 
487 static void
488 yds_enable_dsp(sc)
489 	struct yds_softc *sc;
490 {
491 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
492 }
493 
494 static int
495 yds_disable_dsp(sc)
496 	struct yds_softc *sc;
497 {
498 	int to;
499 	u_int32_t data;
500 
501 	data = YREAD4(sc, YDS_CONFIG);
502 	if (data)
503 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
504 
505 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
506 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
507 			return 0;
508 		delay(1);
509 	}
510 
511 	return 1;
512 }
513 
514 int
515 yds_match(parent, match, aux)
516 	struct device *parent;
517 	struct cfdata *match;
518 	void *aux;
519 {
520 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
521 
522 	switch (PCI_VENDOR(pa->pa_id)) {
523 	case PCI_VENDOR_YAMAHA:
524 		switch (PCI_PRODUCT(pa->pa_id)) {
525 		case PCI_PRODUCT_YAMAHA_YMF724:
526 		case PCI_PRODUCT_YAMAHA_YMF740:
527 		case PCI_PRODUCT_YAMAHA_YMF740C:
528 		case PCI_PRODUCT_YAMAHA_YMF724F:
529 		case PCI_PRODUCT_YAMAHA_YMF744B:
530 		case PCI_PRODUCT_YAMAHA_YMF754:
531 			return (1);
532 		}
533 		break;
534 	}
535 
536 	return (0);
537 }
538 
539 /*
540  * This routine is called after all the ISA devices are configured,
541  * to avoid conflict.
542  */
543 static void
544 yds_configure_legacy (arg)
545 	struct device *arg;
546 #define FLEXIBLE	(sc->sc_flags & YDS_CAP_LEGACY_FLEXIBLE)
547 #define SELECTABLE	(sc->sc_flags & YDS_CAP_LEGACY_SELECTABLE)
548 {
549 	struct yds_softc *sc = (struct yds_softc*) arg;
550 	pcireg_t reg;
551 	struct device *dev;
552 	int i;
553 	bus_addr_t opl_addrs[] = {0x388, 0x398, 0x3A0, 0x3A8};
554 	bus_addr_t mpu_addrs[] = {0x330, 0x300, 0x332, 0x334};
555 
556 	if (!FLEXIBLE && !SELECTABLE)
557 		return;
558 
559 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY);
560 	reg &= ~0x8133c03f;	/* these bits are out of interest */
561 	reg |= ((YDS_PCI_EX_LEGACY_IMOD) |
562 		(YDS_PCI_LEGACY_FMEN |
563 		 YDS_PCI_LEGACY_MEN /*| YDS_PCI_LEGACY_MIEN*/));
564 	if (FLEXIBLE) {
565 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
566 		delay(100*1000);
567 	}
568 
569 	/* Look for OPL */
570 	dev = 0;
571 	for (i = 0; i < sizeof(opl_addrs) / sizeof(bus_addr_t); i++) {
572 		if (SELECTABLE) {
573 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
574 				       YDS_PCI_LEGACY, reg | (i << (0+16)));
575 			delay(100*1000);	/* wait 100ms */
576 		} else
577 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
578 				       YDS_PCI_FM_BA, opl_addrs[i]);
579 		if (bus_space_map(sc->sc_opl_iot,
580 				  opl_addrs[i], 4, 0, &sc->sc_opl_ioh) == 0) {
581 			struct audio_attach_args aa;
582 
583 			aa.type = AUDIODEV_TYPE_OPL;
584 			aa.hwif = aa.hdl = NULL;
585 			dev = config_found(&sc->sc_dev, &aa, audioprint);
586 			if (dev == 0)
587 				bus_space_unmap(sc->sc_opl_iot,
588 						sc->sc_opl_ioh, 4);
589 			else {
590 				if (SELECTABLE)
591 					reg |= (i << (0+16));
592 				break;
593 			}
594 		}
595 	}
596 	if (dev == 0) {
597 		reg &= ~YDS_PCI_LEGACY_FMEN;
598 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
599 			       YDS_PCI_LEGACY, reg);
600 	} else {
601 		/* Max. volume */
602 		YWRITE4(sc, YDS_LEGACY_OUT_VOLUME, 0x3fff3fff);
603 		YWRITE4(sc, YDS_LEGACY_REC_VOLUME, 0x3fff3fff);
604 	}
605 
606 	/* Look for MPU */
607 	dev = 0;
608 	for (i = 0; i < sizeof(mpu_addrs) / sizeof(bus_addr_t); i++) {
609 		if (SELECTABLE)
610 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
611 				       YDS_PCI_LEGACY, reg | (i << (4+16)));
612 		else
613 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
614 				       YDS_PCI_MPU_BA, mpu_addrs[i]);
615 		if (bus_space_map(sc->sc_mpu_iot,
616 				  mpu_addrs[i], 2, 0, &sc->sc_mpu_ioh) == 0) {
617 			struct audio_attach_args aa;
618 
619 			aa.type = AUDIODEV_TYPE_MPU;
620 			aa.hwif = aa.hdl = NULL;
621 			dev = config_found(&sc->sc_dev, &aa, audioprint);
622 			if (dev == 0)
623 				bus_space_unmap(sc->sc_mpu_iot,
624 						sc->sc_mpu_ioh, 2);
625 			else {
626 				if (SELECTABLE)
627 					reg |= (i << (4+16));
628 				break;
629 			}
630 		}
631 	}
632 	if (dev == 0) {
633 		reg &= ~(YDS_PCI_LEGACY_MEN | YDS_PCI_LEGACY_MIEN);
634 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
635 	}
636 	sc->sc_mpu = dev;
637 }
638 #undef FLEXIBLE
639 #undef SELECTABLE
640 
641 void
642 yds_attach(parent, self, aux)
643 	struct device *parent;
644 	struct device *self;
645 	void *aux;
646 {
647 	struct yds_softc *sc = (struct yds_softc *)self;
648 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
649 	pci_chipset_tag_t pc = pa->pa_pc;
650 	char const *intrstr;
651 	pci_intr_handle_t ih;
652 	pcireg_t reg;
653 	struct yds_codec_softc *codec;
654 	char devinfo[256];
655 	mixer_ctrl_t ctl;
656 	int i, r, to;
657 	int revision;
658 	int ac97_id2;
659 
660 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
661 	revision = PCI_REVISION(pa->pa_class);
662 	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
663 
664 	/* Map register to memory */
665 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
666 			   &sc->memt, &sc->memh, NULL, NULL)) {
667 		printf("%s: can't map memory space\n", sc->sc_dev.dv_xname);
668 		return;
669 	}
670 
671 	/* Map and establish the interrupt. */
672 	if (pci_intr_map(pa, &ih)) {
673 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
674 		return;
675 	}
676 	intrstr = pci_intr_string(pc, ih);
677 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc);
678 	if (sc->sc_ih == NULL) {
679 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
680 		if (intrstr != NULL)
681 			printf(" at %s", intrstr);
682 		printf("\n");
683 		return;
684 	}
685 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
686 
687 	sc->sc_dmatag = pa->pa_dmat;
688 	sc->sc_pc = pc;
689 	sc->sc_pcitag = pa->pa_tag;
690 	sc->sc_id = pa->pa_id;
691 	sc->sc_flags = yds_get_dstype(sc->sc_id);
692 #ifdef AUDIO_DEBUG
693 	if (ydsdebug) {
694 		char bits[80];
695 
696 		printf("%s: chip has %s\n", sc->sc_dev.dv_xname,
697 		       bitmask_snprintf(sc->sc_flags, YDS_CAP_BITS, bits,
698 					sizeof(bits)));
699 	}
700 #endif
701 
702 	/* Disable legacy mode */
703 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_LEGACY);
704 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_LEGACY,
705 		       reg & YDS_PCI_LEGACY_LAD);
706 
707 	/* Enable the device. */
708 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
709 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
710 		PCI_COMMAND_MASTER_ENABLE);
711 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
712 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
713 
714 	/* Mute all volumes */
715 	for (i = 0x80; i < 0xc0; i += 2)
716 		YWRITE2(sc, i, 0);
717 
718 	/* Download microcode */
719 	if (yds_download_mcode(sc)) {
720 		printf("%s: download microcode failed\n", sc->sc_dev.dv_xname);
721 		return;
722 	}
723 	/* Allocate DMA buffers */
724 	if (yds_allocate_slots(sc)) {
725 		printf("%s: could not allocate slots\n", sc->sc_dev.dv_xname);
726 		return;
727 	}
728 
729 	/* Warm reset */
730 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
731 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_WRST);
732 	delay(50000);
733 
734 	/*
735 	 * Detect primary/secondary AC97
736 	 *	YMF754 Hardware Specification Rev 1.01 page 24
737 	 */
738 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
739 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
740 	delay(400000);		/* Needed for 740C. */
741 
742 	/* Primary */
743 	for (to = 0; to < AC97_TIMEOUT; to++) {
744 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
745 			break;
746 		delay(1);
747 	}
748 	if (to == AC97_TIMEOUT) {
749 		printf("%s: no AC97 avaliable\n", sc->sc_dev.dv_xname);
750 		return;
751 	}
752 
753 	/* Secondary */
754 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
755 	ac97_id2 = -1;
756 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
757 		goto detected;
758 #if 0				/* reset secondary... */
759 	YWRITE2(sc, YDS_GPIO_OCTRL,
760 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
761 	YWRITE2(sc, YDS_GPIO_FUNCE,
762 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
763 #endif
764 	for (to = 0; to < AC97_TIMEOUT; to++) {
765 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
766 			break;
767 		delay(1);
768 	}
769 	if (to < AC97_TIMEOUT) {
770 		/* detect id */
771 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
772 			YWRITE2(sc, AC97_CMD_ADDR,
773 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
774 
775 			for (to = 0; to < AC97_TIMEOUT; to++) {
776 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
777 				    == 0)
778 					goto detected;
779 				delay(1);
780 			}
781 		}
782 		if (ac97_id2 == 4)
783 			ac97_id2 = -1;
784 detected:
785 		;
786 	}
787 
788 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_CRST);
789 	delay (20);
790 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
791 	delay (400000);
792 	for (to = 0; to < AC97_TIMEOUT; to++) {
793 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
794 			break;
795 		delay(1);
796 	}
797 
798 	/*
799 	 * Attach ac97 codec
800 	 */
801 	for (i = 0; i < 2; i++) {
802 		static struct {
803 			int data;
804 			int addr;
805 		} statregs[] = {
806 			{AC97_STAT_DATA1, AC97_STAT_ADDR1},
807 			{AC97_STAT_DATA2, AC97_STAT_ADDR2},
808 		};
809 
810 		if (i == 1 && ac97_id2 == -1)
811 			break;		/* secondary ac97 not available */
812 
813 		codec = &sc->sc_codec[i];
814 		memcpy(&codec->sc_dev, &sc->sc_dev, sizeof(codec->sc_dev));
815 		codec->sc = sc;
816 		codec->id = i == 1 ? ac97_id2 : 0;
817 		codec->status_data = statregs[i].data;
818 		codec->status_addr = statregs[i].addr;
819 		codec->host_if.arg = codec;
820 		codec->host_if.attach = yds_attach_codec;
821 		codec->host_if.read = yds_read_codec;
822 		codec->host_if.write = yds_write_codec;
823 		codec->host_if.reset = yds_reset_codec;
824 
825 		if ((r = ac97_attach(&codec->host_if)) != 0) {
826 			printf("%s: can't attach codec (error 0x%X)\n",
827 			       sc->sc_dev.dv_xname, r);
828 			return;
829 		}
830 	}
831 
832 	/* Just enable the DAC and master volumes by default */
833 	ctl.type = AUDIO_MIXER_ENUM;
834 	ctl.un.ord = 0;  /* off */
835 	ctl.dev = yds_get_portnum_by_name(sc, AudioCoutputs,
836 					  AudioNmaster, AudioNmute);
837 	yds_mixer_set_port(sc, &ctl);
838 	ctl.dev = yds_get_portnum_by_name(sc, AudioCinputs,
839 					  AudioNdac, AudioNmute);
840 	yds_mixer_set_port(sc, &ctl);
841 	ctl.dev = yds_get_portnum_by_name(sc, AudioCinputs,
842 					  AudioNcd, AudioNmute);
843 	yds_mixer_set_port(sc, &ctl);
844 	ctl.dev = yds_get_portnum_by_name(sc, AudioCrecord,
845 					  AudioNvolume, AudioNmute);
846 	yds_mixer_set_port(sc, &ctl);
847 
848 	ctl.dev = yds_get_portnum_by_name(sc, AudioCrecord,
849 					  AudioNsource, NULL);
850 	ctl.type = AUDIO_MIXER_ENUM;
851 	ctl.un.ord = 0;
852 	yds_mixer_set_port(sc, &ctl);
853 
854 	/* Set a reasonable default volume */
855 	ctl.type = AUDIO_MIXER_VALUE;
856 	ctl.un.value.num_channels = 2;
857 	ctl.un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
858 	ctl.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = 127;
859 
860 	ctl.dev = sc->sc_codec[0].codec_if->vtbl->get_portnum_by_name(
861 	    sc->sc_codec[0].codec_if, AudioCoutputs, AudioNmaster, NULL);
862 	yds_mixer_set_port(sc, &ctl);
863 
864 	audio_attach_mi(&yds_hw_if, sc, &sc->sc_dev);
865 
866 	sc->sc_legacy_iot = pa->pa_iot;
867 	config_defer((struct device*) sc, yds_configure_legacy);
868 }
869 
870 int
871 yds_attach_codec(sc_, codec_if)
872 	void *sc_;
873 	struct ac97_codec_if *codec_if;
874 {
875 	struct yds_codec_softc *sc = sc_;
876 
877 	sc->codec_if = codec_if;
878 	return 0;
879 }
880 
881 static int
882 yds_ready_codec(sc)
883 	struct yds_codec_softc *sc;
884 {
885 	int to;
886 
887 	for (to = 0; to < AC97_TIMEOUT; to++) {
888 		if ((YREAD2(sc->sc, sc->status_addr) & AC97_BUSY) == 0)
889 			return 0;
890 		delay(1);
891 	}
892 
893 	return 1;
894 }
895 
896 int
897 yds_read_codec(sc_, reg, data)
898 	void *sc_;
899 	u_int8_t reg;
900 	u_int16_t *data;
901 {
902 	struct yds_codec_softc *sc = sc_;
903 
904 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);
905 
906 	if (yds_ready_codec(sc)) {
907 		printf("%s: yds_read_codec timeout\n",
908 		       sc->sc->sc_dev.dv_xname);
909 		return EIO;
910 	}
911 
912 	*data = YREAD2(sc->sc, sc->status_data);
913 
914 	return 0;
915 }
916 
917 int
918 yds_write_codec(sc_, reg, data)
919 	void *sc_;
920 	u_int8_t reg;
921 	u_int16_t data;
922 {
923 	struct yds_codec_softc *sc = sc_;
924 
925 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_WRITE | AC97_ID(sc->id) | reg);
926 	YWRITE2(sc->sc, AC97_CMD_DATA, data);
927 
928 	if (yds_ready_codec(sc)) {
929 		printf("%s: yds_write_codec timeout\n",
930 			sc->sc->sc_dev.dv_xname);
931 		return EIO;
932 	}
933 
934 	return 0;
935 }
936 
937 /*
938  * XXX: Must handle the secondary differntly!!
939  */
940 void
941 yds_reset_codec(sc_)
942 	void *sc_;
943 {
944 	struct yds_codec_softc *codec = sc_;
945 	struct yds_softc *sc = codec->sc;
946 	pcireg_t reg;
947 
948 	/* reset AC97 codec */
949 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
950 	if (reg & 0x03) {
951 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
952 			       YDS_PCI_DSCTRL, reg & ~0x03);
953 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
954 			       YDS_PCI_DSCTRL, reg | 0x03);
955 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
956 			       YDS_PCI_DSCTRL, reg & ~0x03);
957 		delay(50000);
958 	}
959 
960 	yds_ready_codec(sc_);
961 }
962 
963 int
964 yds_intr(p)
965 	void *p;
966 {
967 	struct yds_softc *sc = p;
968 	u_int status;
969 
970 	status = YREAD4(sc, YDS_STATUS);
971 	DPRINTFN(1, ("yds_intr: status=%08x\n", status));
972 	if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
973 #if NMPU > 0
974 		if (sc->sc_mpu)
975 			return mpu_intr(sc->sc_mpu);
976 #endif
977 		return 0;
978 	}
979 
980 	if (status & YDS_STAT_TINT) {
981 		YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
982 		printf ("yds_intr: timeout!\n");
983 	}
984 
985 	if (status & YDS_STAT_INT) {
986 		int nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
987 
988 		/* Clear interrupt flag */
989 		YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
990 
991 		/* Buffer for the next frame is always ready. */
992 		YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
993 
994 		if (sc->sc_play.intr) {
995 			u_int dma, cpu, blk, len;
996 
997 			/* Sync play slot control data */
998 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
999 					sc->pbankoff,
1000 					sizeof(struct play_slot_ctrl_bank)*
1001 					    (*sc->ptbl)*
1002 					    N_PLAY_SLOT_CTRL_BANK,
1003 					BUS_DMASYNC_POSTWRITE|
1004 					BUS_DMASYNC_POSTREAD);
1005 			dma = sc->pbankp[nbank]->pgstart * sc->sc_play.factor;
1006 			cpu = sc->sc_play.offset;
1007 			blk = sc->sc_play.blksize;
1008 			len = sc->sc_play.length;
1009 
1010 			if (((dma > cpu) && (dma - cpu > blk * 2)) ||
1011 			    ((cpu > dma) && (dma + len - cpu > blk * 2))) {
1012 				/* We can fill the next block */
1013 				/* Sync ring buffer for previous write */
1014 				bus_dmamap_sync(sc->sc_dmatag,
1015 						sc->sc_play.dma->map,
1016 						cpu, blk,
1017 						BUS_DMASYNC_POSTWRITE);
1018 				sc->sc_play.intr(sc->sc_play.intr_arg);
1019 				sc->sc_play.offset += blk;
1020 				if (sc->sc_play.offset >= len) {
1021 					sc->sc_play.offset -= len;
1022 #ifdef DIAGNOSTIC
1023 					if (sc->sc_play.offset != 0)
1024 						printf ("Audio ringbuffer botch\n");
1025 #endif
1026 				}
1027 				/* Sync ring buffer for next write */
1028 				bus_dmamap_sync(sc->sc_dmatag,
1029 						sc->sc_play.dma->map,
1030 						cpu, blk,
1031 						BUS_DMASYNC_PREWRITE);
1032 			}
1033 		}
1034 		if (sc->sc_rec.intr) {
1035 			u_int dma, cpu, blk, len;
1036 
1037 			/* Sync rec slot control data */
1038 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1039 					sc->rbankoff,
1040 					sizeof(struct rec_slot_ctrl_bank)*
1041 					    N_REC_SLOT_CTRL*
1042 					    N_REC_SLOT_CTRL_BANK,
1043 					BUS_DMASYNC_POSTWRITE|
1044 					BUS_DMASYNC_POSTREAD);
1045 			dma = sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr;
1046 			cpu = sc->sc_rec.offset;
1047 			blk = sc->sc_rec.blksize;
1048 			len = sc->sc_rec.length;
1049 
1050 			if (((dma > cpu) && (dma - cpu > blk * 2)) ||
1051 			    ((cpu > dma) && (dma + len - cpu > blk * 2))) {
1052 				/* We can drain the current block */
1053 				/* Sync ring buffer first */
1054 				bus_dmamap_sync(sc->sc_dmatag,
1055 						sc->sc_rec.dma->map,
1056 						cpu, blk,
1057 						BUS_DMASYNC_POSTREAD);
1058 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
1059 				sc->sc_rec.offset += blk;
1060 				if (sc->sc_rec.offset >= len) {
1061 					sc->sc_rec.offset -= len;
1062 #ifdef DIAGNOSTIC
1063 					if (sc->sc_rec.offset != 0)
1064 						printf ("Audio ringbuffer botch\n");
1065 #endif
1066 				}
1067 				/* Sync ring buffer for next read */
1068 				bus_dmamap_sync(sc->sc_dmatag,
1069 						sc->sc_rec.dma->map,
1070 						cpu, blk,
1071 						BUS_DMASYNC_PREREAD);
1072 			}
1073 		}
1074 	}
1075 
1076 	return 1;
1077 }
1078 
1079 int
1080 yds_allocmem(sc, size, align, p)
1081 	struct yds_softc *sc;
1082 	size_t size;
1083 	size_t align;
1084 	struct yds_dma *p;
1085 {
1086 	int error;
1087 
1088 	p->size = size;
1089 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
1090 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
1091 				 &p->nsegs, BUS_DMA_NOWAIT);
1092 	if (error)
1093 		return (error);
1094 
1095 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
1096 			       &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
1097 	if (error)
1098 		goto free;
1099 
1100 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
1101 				  0, BUS_DMA_NOWAIT, &p->map);
1102 	if (error)
1103 		goto unmap;
1104 
1105 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
1106 				BUS_DMA_NOWAIT);
1107 	if (error)
1108 		goto destroy;
1109 	return (0);
1110 
1111 destroy:
1112 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1113 unmap:
1114 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1115 free:
1116 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1117 	return (error);
1118 }
1119 
1120 int
1121 yds_freemem(sc, p)
1122 	struct yds_softc *sc;
1123 	struct yds_dma *p;
1124 {
1125 	bus_dmamap_unload(sc->sc_dmatag, p->map);
1126 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1127 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1128 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1129 	return 0;
1130 }
1131 
1132 int
1133 yds_open(addr, flags)
1134 	void *addr;
1135 	int flags;
1136 {
1137 	struct yds_softc *sc = addr;
1138 	int mode;
1139 
1140 	/* Select bank 0. */
1141 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
1142 
1143 	/* Start the DSP operation. */
1144 	mode = YREAD4(sc, YDS_MODE);
1145 	mode |= YDS_MODE_ACTV;
1146 	mode &= ~YDS_MODE_ACTV2;
1147 	YWRITE4(sc, YDS_MODE, mode);
1148 
1149 	return 0;
1150 }
1151 
1152 /*
1153  * Close function is called at splaudio().
1154  */
1155 void
1156 yds_close(addr)
1157 	void *addr;
1158 {
1159 	struct yds_softc *sc = addr;
1160 
1161 	yds_halt_output(sc);
1162 	yds_halt_input(sc);
1163 	yds_halt(sc);
1164 }
1165 
1166 int
1167 yds_query_encoding(addr, fp)
1168 	void *addr;
1169 	struct audio_encoding *fp;
1170 {
1171 	switch (fp->index) {
1172 	case 0:
1173 		strcpy(fp->name, AudioEulinear);
1174 		fp->encoding = AUDIO_ENCODING_ULINEAR;
1175 		fp->precision = 8;
1176 		fp->flags = 0;
1177 		return (0);
1178 	case 1:
1179 		strcpy(fp->name, AudioEmulaw);
1180 		fp->encoding = AUDIO_ENCODING_ULAW;
1181 		fp->precision = 8;
1182 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1183 		return (0);
1184 	case 2:
1185 		strcpy(fp->name, AudioEalaw);
1186 		fp->encoding = AUDIO_ENCODING_ALAW;
1187 		fp->precision = 8;
1188 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1189 		return (0);
1190 	case 3:
1191 		strcpy(fp->name, AudioEslinear);
1192 		fp->encoding = AUDIO_ENCODING_SLINEAR;
1193 		fp->precision = 8;
1194 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1195 		return (0);
1196 	case 4:
1197 		strcpy(fp->name, AudioEslinear_le);
1198 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
1199 		fp->precision = 16;
1200 		fp->flags = 0;
1201 		return (0);
1202 	case 5:
1203 		strcpy(fp->name, AudioEulinear_le);
1204 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
1205 		fp->precision = 16;
1206 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1207 		return (0);
1208 	case 6:
1209 		strcpy(fp->name, AudioEslinear_be);
1210 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
1211 		fp->precision = 16;
1212 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1213 		return (0);
1214 	case 7:
1215 		strcpy(fp->name, AudioEulinear_be);
1216 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
1217 		fp->precision = 16;
1218 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1219 		return (0);
1220 	default:
1221 		return (EINVAL);
1222 	}
1223 }
1224 
1225 int
1226 yds_set_params(addr, setmode, usemode, play, rec)
1227 	void *addr;
1228 	int setmode, usemode;
1229 	struct audio_params *play, *rec;
1230 {
1231 	struct audio_params *p;
1232 	int mode;
1233 
1234 	for (mode = AUMODE_RECORD; mode != -1;
1235 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
1236 		if ((setmode & mode) == 0)
1237 			continue;
1238 
1239 		p = mode == AUMODE_PLAY ? play : rec;
1240 
1241 		if (p->sample_rate < 4000 || p->sample_rate > 48000 ||
1242 		    (p->precision != 8 && p->precision != 16) ||
1243 		    (p->channels != 1 && p->channels != 2))
1244 			return (EINVAL);
1245 
1246 		p->factor = 1;
1247 		p->sw_code = 0;
1248 		switch (p->encoding) {
1249 		case AUDIO_ENCODING_SLINEAR_BE:
1250 			if (p->precision == 16)
1251 				p->sw_code = swap_bytes;
1252 			else
1253 				p->sw_code = change_sign8;
1254 			break;
1255 		case AUDIO_ENCODING_SLINEAR_LE:
1256 			if (p->precision != 16)
1257 				p->sw_code = change_sign8;
1258 			break;
1259 		case AUDIO_ENCODING_ULINEAR_BE:
1260 			if (p->precision == 16) {
1261 				if (mode == AUMODE_PLAY)
1262 					p->sw_code = swap_bytes_change_sign16_le;
1263 				else
1264 					p->sw_code = change_sign16_swap_bytes_le;
1265 			}
1266 			break;
1267 		case AUDIO_ENCODING_ULINEAR_LE:
1268 			if (p->precision == 16)
1269 				p->sw_code = change_sign16_le;
1270 			break;
1271 		case AUDIO_ENCODING_ULAW:
1272 			if (mode == AUMODE_PLAY) {
1273 				p->factor = 2;
1274 				p->precision = 16;
1275 				p->sw_code = mulaw_to_slinear16_le;
1276 			} else
1277 				p->sw_code = ulinear8_to_mulaw;
1278 			break;
1279 		case AUDIO_ENCODING_ALAW:
1280 			if (mode == AUMODE_PLAY) {
1281 				p->factor = 2;
1282 				p->precision = 16;
1283 				p->sw_code = alaw_to_slinear16_le;
1284 			} else
1285 				p->sw_code = ulinear8_to_alaw;
1286 			break;
1287 		default:
1288 			return (EINVAL);
1289 		}
1290 	}
1291 
1292 	return 0;
1293 }
1294 
1295 int
1296 yds_round_blocksize(addr, blk)
1297 	void *addr;
1298 	int blk;
1299 {
1300 	/*
1301 	 * Block size must be bigger than a frame.
1302 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
1303 	 */
1304 	if (blk < 1024)
1305 		blk = 1024;
1306 
1307 	return blk & ~4;
1308 }
1309 
1310 static u_int32_t
1311 yds_get_lpfq(sample_rate)
1312 	u_int sample_rate;
1313 {
1314 	int i;
1315 	static struct lpfqt {
1316 		u_int rate;
1317 		u_int32_t lpfq;
1318 	} lpfqt[] = {
1319 		{8000,  0x32020000},
1320 		{11025, 0x31770000},
1321 		{16000, 0x31390000},
1322 		{22050, 0x31c90000},
1323 		{32000, 0x33d00000},
1324 		{48000, 0x40000000},
1325 		{0, 0}
1326 	};
1327 
1328 	if (sample_rate == 44100)		/* for P44 slot? */
1329 		return 0x370A0000;
1330 
1331 	for (i = 0; lpfqt[i].rate != 0; i++)
1332 		if (sample_rate <= lpfqt[i].rate)
1333 			break;
1334 
1335 	return lpfqt[i].lpfq;
1336 }
1337 
1338 static u_int32_t
1339 yds_get_lpfk(sample_rate)
1340 	u_int sample_rate;
1341 {
1342 	int i;
1343 	static struct lpfkt {
1344 		u_int rate;
1345 		u_int32_t lpfk;
1346 	} lpfkt[] = {
1347 		{8000,  0x18b20000},
1348 		{11025, 0x20930000},
1349 		{16000, 0x2b9a0000},
1350 		{22050, 0x35a10000},
1351 		{32000, 0x3eaa0000},
1352 		{48000, 0x40000000},
1353 		{0, 0}
1354 	};
1355 
1356 	if (sample_rate == 44100)		/* for P44 slot? */
1357 		return 0x46460000;
1358 
1359 	for (i = 0; lpfkt[i].rate != 0; i++)
1360 		if (sample_rate <= lpfkt[i].rate)
1361 			break;
1362 
1363 	return lpfkt[i].lpfk;
1364 }
1365 
1366 int
1367 yds_trigger_output(addr, start, end, blksize, intr, arg, param)
1368 	void *addr;
1369 	void *start, *end;
1370 	int blksize;
1371 	void (*intr) __P((void *));
1372 	void *arg;
1373 	struct audio_params *param;
1374 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
1375 {
1376 	struct yds_softc *sc = addr;
1377 	struct yds_dma *p;
1378 	struct play_slot_ctrl_bank *psb;
1379 	const u_int gain = 0x40000000;
1380 	bus_addr_t s;
1381 	size_t l;
1382 	int i;
1383 	int p44, channels;
1384 
1385 #ifdef DIAGNOSTIC
1386 	if (sc->sc_play.intr)
1387 		panic("yds_trigger_output: already running");
1388 #endif
1389 
1390 	sc->sc_play.intr = intr;
1391 	sc->sc_play.intr_arg = arg;
1392 	sc->sc_play.offset = 0;
1393 	sc->sc_play.blksize = blksize;
1394 
1395 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
1396 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1397 
1398 	p = yds_find_dma(sc, start);
1399 	if (!p) {
1400 		printf("yds_trigger_output: bad addr %p\n", start);
1401 		return (EINVAL);
1402 	}
1403 	sc->sc_play.dma = p;
1404 
1405 #ifdef YDS_USE_P44
1406 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
1407 	if (P44)
1408 		p44 = ((param->sample_rate == 44100) &&
1409 		       (param->channels == 2) &&
1410 		       (param->precision == 16));
1411 	else
1412 #endif
1413 		p44 = 0;
1414 	channels = p44 ? 1 : param->channels;
1415 
1416 	s = DMAADDR(p);
1417 	l = ((char *)end - (char *)start);
1418 	sc->sc_play.length = l;
1419 
1420 	*sc->ptbl = channels;	/* Num of play */
1421 
1422 	sc->sc_play.factor = 1;
1423 	if (param->channels == 2)
1424 		sc->sc_play.factor *= 2;
1425 	if (param->precision != 8)
1426 		sc->sc_play.factor *= 2;
1427 	l /= sc->sc_play.factor;
1428 
1429 	psb = sc->pbankp[0];
1430 	memset(psb, 0, sizeof(*psb));
1431 	psb->format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
1432 		       (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
1433 		       (p44 ? PSLT_FORMAT_SRC441 : 0));
1434 	psb->pgbase = s;
1435 	psb->pgloopend = l;
1436 	if (!p44) {
1437 		psb->pgdeltaend = (param->sample_rate * 65536 / 48000) << 12;
1438 		psb->lpfkend = yds_get_lpfk(param->sample_rate);
1439 		psb->eggainend = gain;
1440 		psb->lpfq = yds_get_lpfq(param->sample_rate);
1441 		psb->pgdelta = psb->pgdeltaend;
1442 		psb->lpfk = yds_get_lpfk(param->sample_rate);
1443 		psb->eggain = gain;
1444 	}
1445 
1446 	for (i = 0; i < channels; i++) {
1447 		/* i == 0: left or mono, i == 1: right */
1448 		psb = sc->pbankp[i*2];
1449 		if (i)
1450 			/* copy from left */
1451 			*psb = *(sc->pbankp[0]);
1452 		if (channels == 2) {
1453 			/* stereo */
1454 			if (i == 0) {
1455 				psb->lchgain = psb->lchgainend = gain;
1456 			} else {
1457 				psb->lchgain = psb->lchgainend = 0;
1458 				psb->rchgain = psb->rchgainend = gain;
1459 				psb->format |= PSLT_FORMAT_RCH;
1460 			}
1461 		} else if (!p44) {
1462 			/* mono */
1463 			psb->lchgain = psb->rchgain = gain;
1464 			psb->lchgainend = psb->rchgainend = gain;
1465 		}
1466 		/* copy to the other bank */
1467 		*(sc->pbankp[i*2+1]) = *psb;
1468 	}
1469 
1470 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
1471 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
1472 
1473 	if (p44)
1474 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
1475 	else
1476 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
1477 
1478 	/* Now the play slot for the next frame is set up!! */
1479 	/* Sync play slot control data for both directions */
1480 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1481 			sc->ptbloff,
1482 			sizeof(struct play_slot_ctrl_bank) *
1483 			    channels * N_PLAY_SLOT_CTRL_BANK,
1484 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1485 	/* Sync ring buffer */
1486 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1487 			BUS_DMASYNC_PREWRITE);
1488 	/* HERE WE GO!! */
1489 	YWRITE4(sc, YDS_MODE,
1490 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1491 
1492 	return 0;
1493 }
1494 #undef P44
1495 
1496 int
1497 yds_trigger_input(addr, start, end, blksize, intr, arg, param)
1498 	void *addr;
1499 	void *start, *end;
1500 	int blksize;
1501 	void (*intr) __P((void *));
1502 	void *arg;
1503 	struct audio_params *param;
1504 {
1505 	struct yds_softc *sc = addr;
1506 	struct yds_dma *p;
1507 	u_int srate, format;
1508 	struct rec_slot_ctrl_bank *rsb;
1509 	bus_addr_t s;
1510 	size_t l;
1511 
1512 #ifdef DIAGNOSTIC
1513 	if (sc->sc_rec.intr)
1514 		panic("yds_trigger_input: already running");
1515 #endif
1516 	sc->sc_rec.intr = intr;
1517 	sc->sc_rec.intr_arg = arg;
1518 	sc->sc_rec.offset = 0;
1519 	sc->sc_rec.blksize = blksize;
1520 
1521 	DPRINTFN(1, ("yds_trigger_input: "
1522 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1523 	    addr, start, end, blksize, intr, arg));
1524 	DPRINTFN(1, (" parameters: rate=%lu, precision=%u, channels=%u\n",
1525 	    param->sample_rate, param->precision, param->channels));
1526 
1527 	p = yds_find_dma(sc, start);
1528 	if (!p) {
1529 		printf("yds_trigger_input: bad addr %p\n", start);
1530 		return (EINVAL);
1531 	}
1532 	sc->sc_rec.dma = p;
1533 
1534 	s = DMAADDR(p);
1535 	l = ((char *)end - (char *)start);
1536 	sc->sc_rec.length = l;
1537 
1538 	sc->sc_rec.factor = 1;
1539 	if (param->channels == 2)
1540 		sc->sc_rec.factor *= 2;
1541 	if (param->precision != 8)
1542 		sc->sc_rec.factor *= 2;
1543 
1544 	rsb = &sc->rbank[0];
1545 	memset(rsb, 0, sizeof(*rsb));
1546 	rsb->pgbase = s;
1547 	rsb->pgloopendadr = l;
1548 	/* Seems all 4 banks must be set up... */
1549 	sc->rbank[1] = *rsb;
1550 	sc->rbank[2] = *rsb;
1551 	sc->rbank[3] = *rsb;
1552 
1553 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
1554 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
1555 	srate = 48000 * 4096 / param->sample_rate - 1;
1556 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
1557 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
1558 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
1559 #ifdef YDS_USE_REC_SLOT
1560 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
1561 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
1562 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
1563 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
1564 	YWRITE4(sc, YDS_REC_FORMAT, format);
1565 #else
1566 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
1567 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
1568 	YWRITE4(sc, YDS_ADC_FORMAT, format);
1569 #endif
1570 	/* Now the rec slot for the next frame is set up!! */
1571 	/* Sync record slot control data */
1572 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1573 			sc->rbankoff,
1574 			sizeof(struct rec_slot_ctrl_bank)*
1575 			    N_REC_SLOT_CTRL*
1576 			    N_REC_SLOT_CTRL_BANK,
1577 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1578 	/* Sync ring buffer */
1579 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
1580 			BUS_DMASYNC_PREREAD);
1581 	/* HERE WE GO!! */
1582 	YWRITE4(sc, YDS_MODE,
1583 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1584 
1585 	return 0;
1586 }
1587 
1588 static int
1589 yds_halt(sc)
1590 	struct yds_softc *sc;
1591 {
1592 	u_int32_t mode;
1593 
1594 	/* Stop the DSP operation. */
1595 	mode = YREAD4(sc, YDS_MODE);
1596 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
1597 
1598 	/* Paranoia...  mute all */
1599 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
1600 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
1601 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
1602 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
1603 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
1604 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
1605 
1606 	return 0;
1607 }
1608 
1609 int
1610 yds_halt_output(addr)
1611 	void *addr;
1612 {
1613 	struct yds_softc *sc = addr;
1614 
1615 	DPRINTF(("yds: yds_halt_output\n"));
1616 	if (sc->sc_play.intr) {
1617 		sc->sc_play.intr = 0;
1618 		/* Sync play slot control data */
1619 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1620 				sc->pbankoff,
1621 				sizeof(struct play_slot_ctrl_bank)*
1622 				    (*sc->ptbl)*N_PLAY_SLOT_CTRL_BANK,
1623 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1624 		/* Stop the play slot operation */
1625 		sc->pbankp[0]->status =
1626 		sc->pbankp[1]->status =
1627 		sc->pbankp[2]->status =
1628 		sc->pbankp[3]->status = 1;
1629 		/* Sync ring buffer */
1630 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
1631 				0, sc->sc_play.length, BUS_DMASYNC_POSTWRITE);
1632 	}
1633 
1634 	return 0;
1635 }
1636 
1637 int
1638 yds_halt_input(addr)
1639 	void *addr;
1640 {
1641 	struct yds_softc *sc = addr;
1642 
1643 	DPRINTF(("yds: yds_halt_input\n"));
1644 	sc->sc_rec.intr = NULL;
1645 	if (sc->sc_rec.intr) {
1646 		/* Stop the rec slot operation */
1647 		YWRITE4(sc, YDS_MAPOF_REC, 0);
1648 		sc->sc_rec.intr = 0;
1649 		/* Sync rec slot control data */
1650 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1651 				sc->rbankoff,
1652 				sizeof(struct rec_slot_ctrl_bank)*
1653 				    N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK,
1654 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1655 		/* Sync ring buffer */
1656 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
1657 				0, sc->sc_rec.length, BUS_DMASYNC_POSTREAD);
1658 	}
1659 
1660 	return 0;
1661 }
1662 
1663 int
1664 yds_getdev(addr, retp)
1665 	void *addr;
1666 	struct audio_device *retp;
1667 {
1668 	*retp = yds_device;
1669 
1670 	return 0;
1671 }
1672 
1673 int
1674 yds_mixer_set_port(addr, cp)
1675 	void *addr;
1676 	mixer_ctrl_t *cp;
1677 {
1678 	struct yds_softc *sc = addr;
1679 
1680 	return (sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
1681 	    sc->sc_codec[0].codec_if, cp));
1682 }
1683 
1684 int
1685 yds_mixer_get_port(addr, cp)
1686 	void *addr;
1687 	mixer_ctrl_t *cp;
1688 {
1689 	struct yds_softc *sc = addr;
1690 
1691 	return (sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
1692 	    sc->sc_codec[0].codec_if, cp));
1693 }
1694 
1695 int
1696 yds_query_devinfo(addr, dip)
1697 	void *addr;
1698 	mixer_devinfo_t *dip;
1699 {
1700 	struct yds_softc *sc = addr;
1701 
1702 	return (sc->sc_codec[0].codec_if->vtbl->query_devinfo(
1703 	    sc->sc_codec[0].codec_if, dip));
1704 }
1705 
1706 int
1707 yds_get_portnum_by_name(sc, class, device, qualifier)
1708 	struct yds_softc *sc;
1709 	char *class, *device, *qualifier;
1710 {
1711 	return (sc->sc_codec[0].codec_if->vtbl->get_portnum_by_name(
1712 	    sc->sc_codec[0].codec_if, class, device, qualifier));
1713 }
1714 
1715 void *
1716 yds_malloc(addr, direction, size, pool, flags)
1717 	void *addr;
1718 	int direction;
1719 	size_t size;
1720 	int pool, flags;
1721 {
1722 	struct yds_softc *sc = addr;
1723 	struct yds_dma *p;
1724 	int error;
1725 
1726 	p = malloc(sizeof(*p), pool, flags);
1727 	if (!p)
1728 		return (0);
1729 	error = yds_allocmem(sc, size, 16, p);
1730 	if (error) {
1731 		free(p, pool);
1732 		return (0);
1733 	}
1734 	p->next = sc->sc_dmas;
1735 	sc->sc_dmas = p;
1736 	return (KERNADDR(p));
1737 }
1738 
1739 void
1740 yds_free(addr, ptr, pool)
1741 	void *addr;
1742 	void *ptr;
1743 	int pool;
1744 {
1745 	struct yds_softc *sc = addr;
1746 	struct yds_dma **pp, *p;
1747 
1748 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1749 		if (KERNADDR(p) == ptr) {
1750 			yds_freemem(sc, p);
1751 			*pp = p->next;
1752 			free(p, pool);
1753 			return;
1754 		}
1755 	}
1756 }
1757 
1758 static struct yds_dma *
1759 yds_find_dma(sc, addr)
1760 	struct yds_softc *sc;
1761 	void *addr;
1762 {
1763 	struct yds_dma *p;
1764 
1765 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
1766 		;
1767 
1768 	return p;
1769 }
1770 
1771 size_t
1772 yds_round_buffersize(addr, direction, size)
1773 	void *addr;
1774 	int direction;
1775 	size_t size;
1776 {
1777 	/*
1778 	 * Buffer size should be at least twice as bigger as a frame.
1779 	 */
1780 	if (size < 1024 * 3)
1781 		size = 1024 * 3;
1782 	return (size);
1783 }
1784 
1785 paddr_t
1786 yds_mappage(addr, mem, off, prot)
1787 	void *addr;
1788 	void *mem;
1789 	off_t off;
1790 	int prot;
1791 {
1792 	struct yds_softc *sc = addr;
1793 	struct yds_dma *p;
1794 
1795 	if (off < 0)
1796 		return (-1);
1797 	p = yds_find_dma(sc, mem);
1798 	if (!p)
1799 		return (-1);
1800 	return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1801 				off, prot, BUS_DMA_WAITOK));
1802 }
1803 
1804 int
1805 yds_get_props(addr)
1806 	void *addr;
1807 {
1808 	return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1809 		AUDIO_PROP_FULLDUPLEX);
1810 }
1811