xref: /openbsd-src/sys/dev/pci/yds.c (revision b2ea75c1b17e1a9a339660e7ed45cd24946b230e)
1 /*	$OpenBSD: yds.c,v 1.3 2001/06/12 15:40:33 niklas Exp $	*/
2 /*	$NetBSD: yds.c,v 1.5 2001/05/21 23:55:04 minoura Exp $	*/
3 
4 /*
5  * Copyright (c) 2000, 2001 Kazuki Sakamoto and Minoura Makoto.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 /*
30  * Yamaha YMF724[B-F]/740[B-C]/744/754
31  *
32  * Documentation links:
33  * - ftp://ftp.alsa-project.org/pub/manuals/yamaha/
34  * - ftp://ftp.alsa-project.org/pub/manuals/yamaha/pci/
35  *
36  * TODO:
37  * - FM synth volume (difficult: mixed before ac97)
38  * - Digital in/out (SPDIF) support
39  * - Effect??
40  */
41 
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/malloc.h>
46 #include <sys/device.h>
47 #include <sys/proc.h>
48 #include <sys/queue.h>
49 #include <sys/fcntl.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/midi_if.h>
58 #include <dev/mulaw.h>
59 #include <dev/auconv.h>
60 #include <dev/ic/ac97.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 
68 #include <dev/pci/ydsreg.h>
69 #include <dev/pci/ydsvar.h>
70 
71 /* Debug */
72 #undef YDS_USE_REC_SLOT
73 #define YDS_USE_P44
74 
75 #ifdef AUDIO_DEBUG
76 # define DPRINTF(x)	if (ydsdebug) printf x
77 # define DPRINTFN(n,x)	if (ydsdebug>(n)) printf x
78 int	ydsdebug = 0;
79 #else
80 # define DPRINTF(x)
81 # define DPRINTFN(n,x)
82 #endif
83 #ifdef YDS_USE_REC_SLOT
84 # define YDS_INPUT_SLOT 0	/* REC slot = ADC + loopbacks */
85 #else
86 # define YDS_INPUT_SLOT 1	/* ADC slot */
87 #endif
88 
89 int	yds_match __P((struct device *, void *, void *));
90 void	yds_attach __P((struct device *, struct device *, void *));
91 int	yds_intr __P((void *));
92 
93 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
94 #define KERNADDR(p) ((void *)((p)->addr))
95 
96 int	yds_allocmem __P((struct yds_softc *, size_t, size_t, 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 cfdriver yds_cd = {
145 	NULL, "yds", DV_DULL
146 };
147 
148 struct cfattach yds_ca = {
149 	sizeof(struct yds_softc), yds_match, yds_attach
150 };
151 
152 int	yds_open __P((void *, int));
153 void	yds_close __P((void *));
154 int	yds_query_encoding __P((void *, struct audio_encoding *));
155 int	yds_set_params __P((void *, int, int, 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 *, u_long, int, int));
167 void	yds_free __P((void *, void *, int));
168 u_long	yds_round_buffersize __P((void *, u_long));
169 int	yds_mappage __P((void *, void *, int, 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 };
228 
229 struct audio_device yds_device = {
230 	"Yamaha DS-1",
231 	"",
232 	"yds"
233 };
234 
235 const static struct {
236 	u_int	id;
237 	u_int	flags;
238 #define YDS_CAP_MCODE_1			0x0001
239 #define YDS_CAP_MCODE_1E		0x0002
240 #define YDS_CAP_LEGACY_SELECTABLE	0x0004
241 #define YDS_CAP_LEGACY_FLEXIBLE		0x0008
242 #define YDS_CAP_HAS_P44			0x0010
243 } yds_chip_capability_list[] = {
244 	{ PCI_PRODUCT_YAMAHA_YMF724,
245 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },
246 	/* 740[C] has only 32 slots.  But anyway we use only 2 */
247 	{ PCI_PRODUCT_YAMAHA_YMF740,
248 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },	/* XXX NOT TESTED */
249 	{ PCI_PRODUCT_YAMAHA_YMF740C,
250 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
251 	{ PCI_PRODUCT_YAMAHA_YMF724F,
252 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
253 	{ PCI_PRODUCT_YAMAHA_YMF744,
254 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE },
255 	{ PCI_PRODUCT_YAMAHA_YMF754,
256 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE|YDS_CAP_HAS_P44 },
257 	/* How about 734/737/738?? */
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 	struct yds_dma *dma;
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 	p = (u_int32_t*)sc->ptbl;
281 	for (i = 0; i < N_PLAY_SLOTS+1; i++) {
282 		printf("ptbl + %d:0x%x\n", i, *p);
283 		p++;
284 	}
285 
286 	num = *(u_int32_t*)sc->ptbl;
287 	printf("num = %d\n", num);
288 
289 	for (i = 0; i < num; i++) {
290 
291 		p = (u_int32_t *)sc->pbankp[i];
292 
293 		dma = yds_find_dma(sc,(void*)p);
294 
295 		printf("  pbankp[%d] : %p(%p)\n",
296 		       i, p, (void*)vtophys((vaddr_t)p));
297 		for (j = 0; j < sizeof(struct play_slot_ctrl_bank) /
298 		    sizeof(u_int32_t); j++) {
299 			printf("    0x%02x: 0x%08x\n",
300 			       (unsigned) (j * sizeof(u_int32_t)),
301 			       (unsigned) *p++);
302 		}
303 		/*
304 		p = (u_int32_t *)sc->pbankp[i*2 + 1];
305 		printf("  pbankp[%d] : %p\n", i*2 + 1, p);
306 		for (j = 0; j < sizeof(struct play_slot_ctrl_bank) /
307 		    sizeof(u_int32_t); j++) {
308 			printf("    0x%02x: 0x%08x\n",
309 				j * sizeof(u_int32_t), *p++);
310 				delay(1);
311 		}
312 		*/
313 	}
314 }
315 #endif /* AUDIO_DEBUG */
316 
317 static u_int
318 yds_get_dstype(id)
319 	int id;
320 {
321 	int i;
322 
323 	for (i = 0; yds_chip_capability_list[i].id; i++) {
324 		if (PCI_PRODUCT(id) == yds_chip_capability_list[i].id)
325 			return yds_chip_capability_list[i].flags;
326 	}
327 
328 	return -1;
329 }
330 
331 static int
332 yds_download_mcode(sc)
333 	struct yds_softc *sc;
334 {
335 	u_int ctrl;
336 	const u_int32_t *p;
337 	size_t size;
338 	int dstype;
339 
340 	static struct {
341 		const u_int32_t *mcode;
342 		size_t size;
343 	} ctrls[] = {
344 		{yds_ds1_ctrl_mcode, sizeof(yds_ds1_ctrl_mcode)},
345 		{yds_ds1e_ctrl_mcode, sizeof(yds_ds1e_ctrl_mcode)},
346 	};
347 
348 	if (sc->sc_flags & YDS_CAP_MCODE_1)
349 		dstype = YDS_DS_1;
350 	else if (sc->sc_flags & YDS_CAP_MCODE_1E)
351 		dstype = YDS_DS_1E;
352 	else
353 		return 1;	/* unknown */
354 
355 	if (yds_disable_dsp(sc))
356 		return 1;
357 
358 	/* Software reset */
359         YWRITE4(sc, YDS_MODE, YDS_MODE_RESET);
360         YWRITE4(sc, YDS_MODE, 0);
361 
362         YWRITE4(sc, YDS_MAPOF_REC, 0);
363         YWRITE4(sc, YDS_MAPOF_EFFECT, 0);
364         YWRITE4(sc, YDS_PLAY_CTRLBASE, 0);
365         YWRITE4(sc, YDS_REC_CTRLBASE, 0);
366         YWRITE4(sc, YDS_EFFECT_CTRLBASE, 0);
367         YWRITE4(sc, YDS_WORK_BASE, 0);
368 
369         ctrl = YREAD2(sc, YDS_GLOBAL_CONTROL);
370         YWRITE2(sc, YDS_GLOBAL_CONTROL,
371 		ctrl & ~0x0007);
372 
373 	/* Download DSP microcode. */
374 	p = yds_dsp_mcode;
375 	size = sizeof(yds_dsp_mcode);
376 	YWRITEREGION4(sc, YDS_DSP_INSTRAM, p, size);
377 
378 	/* Download CONTROL microcode. */
379 	p = ctrls[dstype].mcode;
380 	size = ctrls[dstype].size;
381 	YWRITEREGION4(sc, YDS_CTRL_INSTRAM, p, size);
382 
383 	yds_enable_dsp(sc);
384 	delay(10*1000);		/* nessesary on my 724F (??) */
385 
386 	return 0;
387 }
388 
389 static int
390 yds_allocate_slots(sc)
391 	struct yds_softc *sc;
392 {
393 	size_t pcs, rcs, ecs, ws, memsize;
394 	void *mp;
395 	u_int32_t da;		/* DMA address */
396 	char *va;		/* KVA */
397 	off_t cb;
398 	int i;
399 	struct yds_dma *p;
400 
401 	/* Alloc DSP Control Data */
402 	pcs = YREAD4(sc, YDS_PLAY_CTRLSIZE) * sizeof(u_int32_t);
403 	rcs = YREAD4(sc, YDS_REC_CTRLSIZE) * sizeof(u_int32_t);
404 	ecs = YREAD4(sc, YDS_EFFECT_CTRLSIZE) * sizeof(u_int32_t);
405 	ws = WORK_SIZE;
406 	YWRITE4(sc, YDS_WORK_SIZE, ws / sizeof(u_int32_t));
407 
408 	DPRINTF(("play control size : %d\n", (unsigned int)pcs));
409 	DPRINTF(("rec control size : %d\n", (unsigned int)rcs));
410 	DPRINTF(("eff control size : %d\n", (unsigned int)ecs));
411 	DPRINTF(("work size : %d\n", (unsigned int)ws));
412 #ifdef DIAGNOSTIC
413 	if (pcs != sizeof(struct play_slot_ctrl_bank)) {
414 		printf("%s: invalid play slot ctrldata %d != %d\n",
415 		       sc->sc_dev.dv_xname, (unsigned int)pcs,
416 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
417 	}
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 	bzero(mp, 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 = da + 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, BUS_DMASYNC_PREWRITE);
481 
482 	return 0;
483 }
484 
485 static void
486 yds_enable_dsp(sc)
487 	struct yds_softc *sc;
488 {
489 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
490 }
491 
492 static int
493 yds_disable_dsp(sc)
494 	struct yds_softc *sc;
495 {
496 	int to;
497 	u_int32_t data;
498 
499 	data = YREAD4(sc, YDS_CONFIG);
500 	if (data)
501 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
502 
503 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
504 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
505 			return 0;
506 		delay(1);
507 	}
508 
509 	return 1;
510 }
511 
512 int
513 yds_match(parent, match, aux)
514 	struct device *parent;
515 	void *match;
516 	void *aux;
517 {
518 	struct pci_attach_args *pa = (struct pci_attach_args *) aux;
519 
520 	switch (PCI_VENDOR(pa->pa_id)) {
521 	case PCI_VENDOR_YAMAHA:
522 		switch (PCI_PRODUCT(pa->pa_id)) {
523 		case PCI_PRODUCT_YAMAHA_YMF724:
524 		case PCI_PRODUCT_YAMAHA_YMF740:
525 		case PCI_PRODUCT_YAMAHA_YMF740C:
526 		case PCI_PRODUCT_YAMAHA_YMF724F:
527 		case PCI_PRODUCT_YAMAHA_YMF744:
528 		case PCI_PRODUCT_YAMAHA_YMF754:
529 		/* 734, 737, 738?? */
530 			return (1);
531 		}
532 		break;
533 	}
534 
535 	return (0);
536 }
537 
538 /*
539  * This routine is called after all the ISA devices are configured,
540  * to avoid conflict.
541  */
542 static void
543 yds_configure_legacy (arg)
544 	struct device *arg;
545 #define FLEXIBLE	(sc->sc_flags & YDS_CAP_LEGACY_FLEXIBLE)
546 #define SELECTABLE	(sc->sc_flags & YDS_CAP_LEGACY_SELECTABLE)
547 {
548 	struct yds_softc *sc = (struct yds_softc*) arg;
549 	pcireg_t reg;
550 	struct device *dev;
551 	int i;
552 	bus_addr_t opl_addrs[] = {0x388, 0x398, 0x3A0, 0x3A8};
553 	bus_addr_t mpu_addrs[] = {0x330, 0x300, 0x332, 0x334};
554 
555 	if (!FLEXIBLE && !SELECTABLE)
556 		return;
557 
558 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY);
559 	reg &= ~0x8133c03f;	/* these bits are out of interest */
560 	reg |= ((YDS_PCI_EX_LEGACY_IMOD) |
561 		(YDS_PCI_LEGACY_FMEN |
562 		 YDS_PCI_LEGACY_MEN /*| YDS_PCI_LEGACY_MIEN*/));
563 	if (FLEXIBLE) {
564 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
565 		delay(100*1000);
566 	}
567 
568 	/* Look for OPL */
569 	dev = 0;
570 	for (i = 0; i < sizeof(opl_addrs) / sizeof (bus_addr_t); i++) {
571 		if (SELECTABLE) {
572 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
573 				       YDS_PCI_LEGACY, reg | (i << (0+16)));
574 			delay(100*1000);	/* wait 100ms */
575 		} else
576 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
577 				       YDS_PCI_FM_BA, opl_addrs[i]);
578 		if (bus_space_map(sc->sc_opl_iot,
579 				  opl_addrs[i], 4, 0, &sc->sc_opl_ioh) == 0) {
580 			struct audio_attach_args aa;
581 
582 			aa.type = AUDIODEV_TYPE_OPL;
583 			aa.hwif = aa.hdl = NULL;
584 			dev = config_found(&sc->sc_dev, &aa, audioprint);
585 			if (dev == 0)
586 				bus_space_unmap(sc->sc_opl_iot,
587 						sc->sc_opl_ioh, 4);
588 			else {
589 				if (SELECTABLE)
590 					reg |= (i << (0+16));
591 				break;
592 			}
593 		}
594 	}
595 	if (dev == 0) {
596 		reg &= ~YDS_PCI_LEGACY_FMEN;
597 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
598 			       YDS_PCI_LEGACY, reg);
599 	} else {
600 		/* Max. volume */
601 		YWRITE4(sc, YDS_LEGACY_OUT_VOLUME, 0x3fff3fff);
602 		YWRITE4(sc, YDS_LEGACY_REC_VOLUME, 0x3fff3fff);
603 	}
604 
605 	/* Look for MPU */
606 	dev = 0;
607 	for (i = 0; i < sizeof(mpu_addrs) / sizeof (bus_addr_t); i++) {
608 		if (SELECTABLE)
609 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
610 				       YDS_PCI_LEGACY, reg | (i << (4+16)));
611 		else
612 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
613 				       YDS_PCI_MPU_BA, mpu_addrs[i]);
614 		if (bus_space_map(sc->sc_mpu_iot,
615 				  mpu_addrs[i], 2, 0, &sc->sc_mpu_ioh) == 0) {
616 			struct audio_attach_args aa;
617 
618 			aa.type = AUDIODEV_TYPE_MPU;
619 			aa.hwif = aa.hdl = NULL;
620 			dev = config_found(&sc->sc_dev, &aa, audioprint);
621 			if (dev == 0)
622 				bus_space_unmap(sc->sc_mpu_iot,
623 						sc->sc_mpu_ioh, 2);
624 			else {
625 				if (SELECTABLE)
626 					reg |= (i << (4+16));
627 				break;
628 			}
629 		}
630 	}
631 	if (dev == 0) {
632 		reg &= ~(YDS_PCI_LEGACY_MEN | YDS_PCI_LEGACY_MIEN);
633 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
634 			       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 	mixer_ctrl_t ctl;
655 	int i, r, to;
656 	int ac97_id2;
657 
658 	/* Map register to memory */
659 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
660 	    &sc->memt, &sc->memh, NULL, NULL, 0)) {
661 		printf("%s: can't map memory space\n", sc->sc_dev.dv_xname);
662 		return;
663 	}
664 
665 	/* Map and establish the interrupt. */
666 	if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, pa->pa_intrline,
667 	    &ih)) {
668 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
669 		return;
670 	}
671 	intrstr = pci_intr_string(pc, ih);
672 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc,
673 	    self->dv_xname);
674 	if (sc->sc_ih == NULL) {
675 		printf("%s: couldn't establish interrupt",
676 		    sc->sc_dev.dv_xname);
677 		if (intrstr != NULL)
678 			printf(" at %s", intrstr);
679 		printf("\n");
680 		return;
681 	}
682 	printf(": %s\n", 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,
737 		reg & ~YDS_DSCTRL_CRST);
738 	delay(400000);		/* Needed for 740C. */
739 
740 	/* Primary */
741 	for (to = 0; to < AC97_TIMEOUT; to++) {
742 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
743 			break;
744 		delay(1);
745 	}
746 	if (to == AC97_TIMEOUT) {
747 		printf("%s: no AC97 avaliable\n", sc->sc_dev.dv_xname);
748 		return;
749 	}
750 
751 	/* Secondary */
752 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
753 	ac97_id2 = -1;
754 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
755 		goto detected;
756 #if 0				/* reset secondary... */
757 	YWRITE2(sc, YDS_GPIO_OCTRL,
758 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
759 	YWRITE2(sc, YDS_GPIO_FUNCE,
760 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
761 #endif
762 	for (to = 0; to < AC97_TIMEOUT; to++) {
763 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
764 			break;
765 		delay(1);
766 	}
767 	if (to < AC97_TIMEOUT) {
768 		/* detect id */
769 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
770 			YWRITE2(sc, AC97_CMD_ADDR,
771 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
772 
773 			for (to = 0; to < AC97_TIMEOUT; to++) {
774 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
775 				    == 0)
776 					goto detected;
777 				delay(1);
778 			}
779 		}
780 		if (ac97_id2 == 4)
781 			ac97_id2 = -1;
782 detected:
783 		;
784 	}
785 
786 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL,
787 		       reg | YDS_DSCTRL_CRST);
788 	delay (20);
789 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL,
790 		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 			    BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1000 			dma = sc->pbankp[nbank]->pgstart * sc->sc_play.factor;
1001 			cpu = sc->sc_play.offset;
1002 			blk = sc->sc_play.blksize;
1003 			len = sc->sc_play.length;
1004 
1005 			if (((dma > cpu) && (dma - cpu > blk * 2)) ||
1006 			    ((cpu > dma) && (dma + len - cpu > blk * 2))) {
1007 				/* We can fill the next block */
1008 				/* Sync ring buffer first for previous write */
1009 				bus_dmamap_sync(sc->sc_dmatag,
1010 				    sc->sc_play.dma->map,
1011 				    BUS_DMASYNC_POSTWRITE);
1012 				sc->sc_play.intr(sc->sc_play.intr_arg);
1013 				sc->sc_play.offset += blk;
1014 				if (sc->sc_play.offset >= len) {
1015 					sc->sc_play.offset -= len;
1016 #ifdef DIAGNOSTIC
1017 					if (sc->sc_play.offset != 0)
1018 						printf ("Audio ringbuffer botch\n");
1019 #endif
1020 				}
1021 				/* Sync ring buffer for next write */
1022 				bus_dmamap_sync(sc->sc_dmatag,
1023 				    sc->sc_play.dma->map,
1024 				    BUS_DMASYNC_PREWRITE);
1025 			}
1026 		}
1027 		if (sc->sc_rec.intr) {
1028 			u_int dma, cpu, blk, len;
1029 
1030 			/* Sync rec slot control data */
1031 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1032 			    BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1033 			dma = sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr;
1034 			cpu = sc->sc_rec.offset;
1035 			blk = sc->sc_rec.blksize;
1036 			len = sc->sc_rec.length;
1037 
1038 			if (((dma > cpu) && (dma - cpu > blk * 2)) ||
1039 			    ((cpu > dma) && (dma + len - cpu > blk * 2))) {
1040 				/* We can drain the current block */
1041 				/* Sync ring buffer first */
1042 				bus_dmamap_sync(sc->sc_dmatag,
1043 				    sc->sc_rec.dma->map, BUS_DMASYNC_POSTREAD);
1044 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
1045 				sc->sc_rec.offset += blk;
1046 				if (sc->sc_rec.offset >= len) {
1047 					sc->sc_rec.offset -= len;
1048 #ifdef DIAGNOSTIC
1049 					if (sc->sc_rec.offset != 0)
1050 						printf ("Audio ringbuffer botch\n");
1051 #endif
1052 				}
1053 				/* Sync ring buffer for next read */
1054 				bus_dmamap_sync(sc->sc_dmatag,
1055 				    sc->sc_rec.dma->map, BUS_DMASYNC_PREREAD);
1056 			}
1057 		}
1058 	}
1059 
1060 	return 1;
1061 }
1062 
1063 int
1064 yds_allocmem(sc, size, align, p)
1065 	struct yds_softc *sc;
1066 	size_t size;
1067 	size_t align;
1068 	struct yds_dma *p;
1069 {
1070 	int error;
1071 
1072 	p->size = size;
1073 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
1074 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
1075 				 &p->nsegs, BUS_DMA_NOWAIT);
1076 	if (error)
1077 		return (error);
1078 
1079 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
1080 			       &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
1081 	if (error)
1082 		goto free;
1083 
1084 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
1085 				  0, BUS_DMA_NOWAIT, &p->map);
1086 	if (error)
1087 		goto unmap;
1088 
1089 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
1090 				BUS_DMA_NOWAIT);
1091 	if (error)
1092 		goto destroy;
1093 	return (0);
1094 
1095 destroy:
1096 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1097 unmap:
1098 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1099 free:
1100 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1101 	return (error);
1102 }
1103 
1104 int
1105 yds_freemem(sc, p)
1106 	struct yds_softc *sc;
1107 	struct yds_dma *p;
1108 {
1109 	bus_dmamap_unload(sc->sc_dmatag, p->map);
1110 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
1111 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
1112 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
1113 	return 0;
1114 }
1115 
1116 int
1117 yds_open(addr, flags)
1118 	void *addr;
1119 	int flags;
1120 {
1121 	struct yds_softc *sc = addr;
1122 	int mode;
1123 
1124 	/* Select bank 0. */
1125 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
1126 
1127 	/* Start the DSP operation. */
1128 	mode = YREAD4(sc, YDS_MODE);
1129 	mode |= YDS_MODE_ACTV;
1130 	mode &= ~YDS_MODE_ACTV2;
1131 	YWRITE4(sc, YDS_MODE, mode);
1132 
1133 	return 0;
1134 }
1135 
1136 /*
1137  * Close function is called at splaudio().
1138  */
1139 void
1140 yds_close(addr)
1141 	void *addr;
1142 {
1143 	struct yds_softc *sc = addr;
1144 
1145 	yds_halt_output(sc);
1146 	yds_halt_input(sc);
1147 	yds_halt(sc);
1148 }
1149 
1150 int
1151 yds_query_encoding(addr, fp)
1152 	void *addr;
1153 	struct audio_encoding *fp;
1154 {
1155 	switch (fp->index) {
1156 	case 0:
1157 		strcpy(fp->name, AudioEulinear);
1158 		fp->encoding = AUDIO_ENCODING_ULINEAR;
1159 		fp->precision = 8;
1160 		fp->flags = 0;
1161 		return (0);
1162 	case 1:
1163 		strcpy(fp->name, AudioEmulaw);
1164 		fp->encoding = AUDIO_ENCODING_ULAW;
1165 		fp->precision = 8;
1166 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1167 		return (0);
1168 	case 2:
1169 		strcpy(fp->name, AudioEalaw);
1170 		fp->encoding = AUDIO_ENCODING_ALAW;
1171 		fp->precision = 8;
1172 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1173 		return (0);
1174 	case 3:
1175 		strcpy(fp->name, AudioEslinear);
1176 		fp->encoding = AUDIO_ENCODING_SLINEAR;
1177 		fp->precision = 8;
1178 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1179 		return (0);
1180 	case 4:
1181 		strcpy(fp->name, AudioEslinear_le);
1182 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
1183 		fp->precision = 16;
1184 		fp->flags = 0;
1185 		return (0);
1186 	case 5:
1187 		strcpy(fp->name, AudioEulinear_le);
1188 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
1189 		fp->precision = 16;
1190 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1191 		return (0);
1192 	case 6:
1193 		strcpy(fp->name, AudioEslinear_be);
1194 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
1195 		fp->precision = 16;
1196 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1197 		return (0);
1198 	case 7:
1199 		strcpy(fp->name, AudioEulinear_be);
1200 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
1201 		fp->precision = 16;
1202 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1203 		return (0);
1204 	default:
1205 		return (EINVAL);
1206 	}
1207 }
1208 
1209 int
1210 yds_set_params(addr, setmode, usemode, play, rec)
1211 	void *addr;
1212 	int setmode, usemode;
1213 	struct audio_params *play, *rec;
1214 {
1215 	struct audio_params *p;
1216 	int mode;
1217 
1218 	for (mode = AUMODE_RECORD; mode != -1;
1219 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
1220 		if ((setmode & mode) == 0)
1221 			continue;
1222 
1223 		p = mode == AUMODE_PLAY ? play : rec;
1224 
1225 		if (p->sample_rate < 4000 || p->sample_rate > 48000 ||
1226 		    (p->precision != 8 && p->precision != 16) ||
1227 		    (p->channels != 1 && p->channels != 2))
1228 			return (EINVAL);
1229 
1230 		p->factor = 1;
1231 		p->sw_code = 0;
1232 		switch (p->encoding) {
1233 		case AUDIO_ENCODING_SLINEAR_BE:
1234 			if (p->precision == 16)
1235 				p->sw_code = swap_bytes;
1236 			else
1237 				p->sw_code = change_sign8;
1238 			break;
1239 		case AUDIO_ENCODING_SLINEAR_LE:
1240 			if (p->precision != 16)
1241 				p->sw_code = change_sign8;
1242 			break;
1243 		case AUDIO_ENCODING_ULINEAR_BE:
1244 			if (p->precision == 16) {
1245 				if (mode == AUMODE_PLAY)
1246 					p->sw_code = swap_bytes_change_sign16_le;
1247 				else
1248 					p->sw_code = change_sign16_swap_bytes_le;
1249 			}
1250 			break;
1251 		case AUDIO_ENCODING_ULINEAR_LE:
1252 			if (p->precision == 16)
1253 				p->sw_code = change_sign16_le;
1254 			break;
1255 		case AUDIO_ENCODING_ULAW:
1256 			if (mode == AUMODE_PLAY) {
1257 				p->factor = 2;
1258 				p->precision = 16;
1259 				p->sw_code = mulaw_to_slinear16_le;
1260 			} else
1261 				p->sw_code = ulinear8_to_mulaw;
1262 			break;
1263 		case AUDIO_ENCODING_ALAW:
1264 			if (mode == AUMODE_PLAY) {
1265 				p->factor = 2;
1266 				p->precision = 16;
1267 				p->sw_code = alaw_to_slinear16_le;
1268 			} else
1269 				p->sw_code = ulinear8_to_alaw;
1270 			break;
1271 		default:
1272 			return (EINVAL);
1273 		}
1274 	}
1275 
1276 	return 0;
1277 }
1278 
1279 int
1280 yds_round_blocksize(addr, blk)
1281 	void *addr;
1282 	int blk;
1283 {
1284 	/*
1285 	 * Block size must be bigger than a frame.
1286 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
1287 	 */
1288 	if (blk < 1024)
1289 		blk = 1024;
1290 
1291 	return blk & ~4;
1292 }
1293 
1294 static u_int32_t
1295 yds_get_lpfq(sample_rate)
1296 	u_int sample_rate;
1297 {
1298 	int i;
1299 	static struct lpfqt {
1300 		u_int rate;
1301 		u_int32_t lpfq;
1302 	} lpfqt[] = {
1303 		{8000,  0x32020000},
1304 		{11025, 0x31770000},
1305 		{16000, 0x31390000},
1306 		{22050, 0x31c90000},
1307 		{32000, 0x33d00000},
1308 		{48000, 0x40000000},
1309 		{0, 0}
1310 	};
1311 
1312 	if (sample_rate == 44100)		/* for P44 slot? */
1313 		return 0x370A0000;
1314 
1315 	for (i = 0; lpfqt[i].rate != 0; i++)
1316 		if (sample_rate <= lpfqt[i].rate)
1317 			break;
1318 
1319 	return lpfqt[i].lpfq;
1320 }
1321 
1322 static u_int32_t
1323 yds_get_lpfk(sample_rate)
1324 	u_int sample_rate;
1325 {
1326 	int i;
1327 	static struct lpfkt {
1328 		u_int rate;
1329 		u_int32_t lpfk;
1330 	} lpfkt[] = {
1331 		{8000,  0x18b20000},
1332 		{11025, 0x20930000},
1333 		{16000, 0x2b9a0000},
1334 		{22050, 0x35a10000},
1335 		{32000, 0x3eaa0000},
1336 		{48000, 0x40000000},
1337 		{0, 0}
1338 	};
1339 
1340 	if (sample_rate == 44100)		/* for P44 slot? */
1341 		return 0x46460000;
1342 
1343 	for (i = 0; lpfkt[i].rate != 0; i++)
1344 		if (sample_rate <= lpfkt[i].rate)
1345 			break;
1346 
1347 	return lpfkt[i].lpfk;
1348 }
1349 
1350 int
1351 yds_trigger_output(addr, start, end, blksize, intr, arg, param)
1352 	void *addr;
1353 	void *start, *end;
1354 	int blksize;
1355 	void (*intr) __P((void *));
1356 	void *arg;
1357 	struct audio_params *param;
1358 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
1359 {
1360 	struct yds_softc *sc = addr;
1361 	struct yds_dma *p;
1362 	struct play_slot_ctrl_bank *psb;
1363 	const u_int gain = 0x40000000;
1364 	bus_addr_t s;
1365 	size_t l;
1366 	int i;
1367 	int p44, channels;
1368 
1369 #ifdef DIAGNOSTIC
1370 	if (sc->sc_play.intr)
1371 		panic("yds_trigger_output: already running");
1372 #endif
1373 
1374 	sc->sc_play.intr = intr;
1375 	sc->sc_play.intr_arg = arg;
1376 	sc->sc_play.offset = 0;
1377 	sc->sc_play.blksize = blksize;
1378 
1379 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
1380 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1381 
1382 	p = yds_find_dma(sc, start);
1383 	if (!p) {
1384 		printf("yds_trigger_output: bad addr %p\n", start);
1385 		return (EINVAL);
1386 	}
1387 	sc->sc_play.dma = p;
1388 
1389 #ifdef DIAGNOSTIC
1390 	{
1391 		u_int32_t ctrlsize;
1392 		if ((ctrlsize = YREAD4(sc, YDS_PLAY_CTRLSIZE)) !=
1393 		    sizeof(struct play_slot_ctrl_bank) / sizeof(u_int32_t))
1394 			panic("%s: invalid play slot ctrldata %d %d",
1395 			      sc->sc_dev.dv_xname, ctrlsize,
1396 			      sizeof(struct play_slot_ctrl_bank));
1397 	}
1398 #endif
1399 
1400 #ifdef YDS_USE_P44
1401 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
1402 	if (P44)
1403 		p44 = ((param->sample_rate == 44100) &&
1404 		       (param->channels == 2) &&
1405 		       (param->precision == 16));
1406 	else
1407 #endif
1408 		p44 = 0;
1409 	channels = p44 ? 1 : param->channels;
1410 
1411 	s = DMAADDR(p);
1412 	l = ((char *)end - (char *)start);
1413 	sc->sc_play.length = l;
1414 
1415 	*sc->ptbl = channels;	/* Num of play */
1416 
1417 	sc->sc_play.factor = 1;
1418 	if (param->channels == 2)
1419 		sc->sc_play.factor *= 2;
1420 	if (param->precision != 8)
1421 		sc->sc_play.factor *= 2;
1422 	l /= sc->sc_play.factor;
1423 
1424 	psb = sc->pbankp[0];
1425 	memset(psb, 0, sizeof(*psb));
1426 	psb->format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
1427 		       (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
1428 		       (p44 ? PSLT_FORMAT_SRC441 : 0));
1429 	psb->pgbase = s;
1430 	psb->pgloopend = l;
1431 	if (!p44) {
1432 		psb->pgdeltaend = (param->sample_rate * 65536 / 48000) << 12;
1433 		psb->lpfkend = yds_get_lpfk(param->sample_rate);
1434 		psb->eggainend = gain;
1435 		psb->lpfq = yds_get_lpfq(param->sample_rate);
1436 		psb->pgdelta = psb->pgdeltaend;
1437 		psb->lpfk = yds_get_lpfk(param->sample_rate);
1438 		psb->eggain = gain;
1439 	}
1440 
1441 	for (i = 0; i < channels; i++) {
1442 		/* i == 0: left or mono, i == 1: right */
1443 		psb = sc->pbankp[i*2];
1444 		if (i)
1445 			/* copy from left */
1446 			*psb = *(sc->pbankp[0]);
1447 		if (channels == 2) {
1448 			/* stereo */
1449 			if (i == 0) {
1450 				psb->lchgain = psb->lchgainend = gain;
1451 			} else {
1452 				psb->lchgain = psb->lchgainend = 0;
1453 				psb->rchgain = psb->rchgainend = gain;
1454 				psb->format |= PSLT_FORMAT_RCH;
1455 			}
1456 		} else if (!p44) {
1457 			/* mono */
1458 			psb->lchgain = psb->rchgain = gain;
1459 			psb->lchgainend = psb->rchgainend = gain;
1460 		}
1461 		/* copy to the other bank */
1462 		*(sc->pbankp[i*2+1]) = *psb;
1463 	}
1464 
1465 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
1466 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
1467 
1468 	if (p44)
1469 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
1470 	else
1471 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
1472 
1473 	/* Now the play slot for the next frame is set up!! */
1474 	/* Sync play slot control data for both directions */
1475 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1476 	    BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1477 	/* Sync ring buffer */
1478 	bus_dmamap_sync(sc->sc_dmatag, p->map, BUS_DMASYNC_PREWRITE);
1479 	/* HERE WE GO!! */
1480 	YWRITE4(sc, YDS_MODE,
1481 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1482 
1483 	return 0;
1484 }
1485 #undef P44
1486 
1487 int
1488 yds_trigger_input(addr, start, end, blksize, intr, arg, param)
1489 	void *addr;
1490 	void *start, *end;
1491 	int blksize;
1492 	void (*intr) __P((void *));
1493 	void *arg;
1494 	struct audio_params *param;
1495 {
1496 	struct yds_softc *sc = addr;
1497 	struct yds_dma *p;
1498 	u_int srate, format;
1499 	struct rec_slot_ctrl_bank *rsb;
1500 	bus_addr_t s;
1501 	size_t l;
1502 
1503 #ifdef DIAGNOSTIC
1504 	if (sc->sc_rec.intr)
1505 		panic("yds_trigger_input: already running");
1506 #endif
1507 	sc->sc_rec.intr = intr;
1508 	sc->sc_rec.intr_arg = arg;
1509 	sc->sc_rec.offset = 0;
1510 	sc->sc_rec.blksize = blksize;
1511 
1512 	DPRINTFN(1, ("yds_trigger_input: "
1513 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1514 	    addr, start, end, blksize, intr, arg));
1515 	DPRINTFN(1, (" parameters: rate=%lu, precision=%u, channels=%u\n",
1516 	    param->sample_rate, param->precision, param->channels));
1517 
1518 	p = yds_find_dma(sc, start);
1519 	if (!p) {
1520 		printf("yds_trigger_input: bad addr %p\n", start);
1521 		return (EINVAL);
1522 	}
1523 	sc->sc_rec.dma = p;
1524 
1525 #ifdef DIAGNOSTIC
1526 	{
1527 		u_int32_t ctrlsize;
1528 		if ((ctrlsize = YREAD4(sc, YDS_REC_CTRLSIZE)) !=
1529 		    sizeof(struct rec_slot) / sizeof(u_int32_t))
1530 			panic("%s: invalid rec slot ctrldata %d",
1531 				sc->sc_dev.dv_xname, ctrlsize);
1532 	}
1533 #endif
1534 
1535 	s = DMAADDR(p);
1536 	l = ((char *)end - (char *)start);
1537 	sc->sc_rec.length = l;
1538 
1539 	sc->sc_rec.factor = 1;
1540 	if (param->channels == 2)
1541 		sc->sc_rec.factor *= 2;
1542 	if (param->precision != 8)
1543 		sc->sc_rec.factor *= 2;
1544 
1545 	rsb = &sc->rbank[0];
1546 	memset(rsb, 0, sizeof(*rsb));
1547 	rsb->pgbase = s;
1548 	rsb->pgloopendadr = l;
1549 	/* Seems all 4 banks must be set up... */
1550 	sc->rbank[1] = *rsb;
1551 	sc->rbank[2] = *rsb;
1552 	sc->rbank[3] = *rsb;
1553 
1554 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
1555 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
1556 	srate = 48000 * 4096 / param->sample_rate - 1;
1557 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
1558 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
1559 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
1560 #ifdef YDS_USE_REC_SLOT
1561 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
1562 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
1563 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
1564 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
1565 	YWRITE4(sc, YDS_REC_FORMAT, format);
1566 #else
1567 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
1568 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
1569 	YWRITE4(sc, YDS_ADC_FORMAT, format);
1570 #endif
1571 	/* Now the rec slot for the next frame is set up!! */
1572 	/* Sync record slot control data */
1573 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1574 	    BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
1575 	/* Sync ring buffer */
1576 	bus_dmamap_sync(sc->sc_dmatag, p->map, BUS_DMASYNC_PREREAD);
1577 	/* HERE WE GO!! */
1578 	YWRITE4(sc, YDS_MODE,
1579 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
1580 
1581 	return 0;
1582 }
1583 
1584 static int
1585 yds_halt(sc)
1586 	struct yds_softc *sc;
1587 {
1588 	u_int32_t mode;
1589 
1590 	/* Stop the DSP operation. */
1591 	mode = YREAD4(sc, YDS_MODE);
1592 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
1593 
1594 	/* Paranoia...  mute all */
1595 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
1596 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
1597 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
1598 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
1599 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
1600 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
1601 
1602 	return 0;
1603 }
1604 
1605 int
1606 yds_halt_output(addr)
1607 	void *addr;
1608 {
1609 	struct yds_softc *sc = addr;
1610 
1611 	DPRINTF(("yds: yds_halt_output\n"));
1612 	if (sc->sc_play.intr) {
1613 		sc->sc_play.intr = 0;
1614 		/* Sync play slot control data */
1615 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1616 		    BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1617 		/* Stop the play slot operation */
1618 		sc->pbankp[0]->status =
1619 		sc->pbankp[1]->status =
1620 		sc->pbankp[2]->status =
1621 		sc->pbankp[3]->status = 1;
1622 		/* Sync ring buffer */
1623 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
1624 		    BUS_DMASYNC_POSTWRITE);
1625 	}
1626 
1627 	return 0;
1628 }
1629 
1630 int
1631 yds_halt_input(addr)
1632 	void *addr;
1633 {
1634 	struct yds_softc *sc = addr;
1635 
1636 	DPRINTF(("yds: yds_halt_input\n"));
1637 	sc->sc_rec.intr = NULL;
1638 	if (sc->sc_rec.intr) {
1639 		/* Stop the rec slot operation */
1640 		YWRITE4(sc, YDS_MAPOF_REC, 0);
1641 		sc->sc_rec.intr = 0;
1642 		/* Sync rec slot control data */
1643 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
1644 		    BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
1645 		/* Sync ring buffer */
1646 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
1647 		    BUS_DMASYNC_POSTREAD);
1648 	}
1649 
1650 	return 0;
1651 }
1652 
1653 int
1654 yds_getdev(addr, retp)
1655 	void *addr;
1656 	struct audio_device *retp;
1657 {
1658 	*retp = yds_device;
1659 
1660 	return 0;
1661 }
1662 
1663 int
1664 yds_mixer_set_port(addr, cp)
1665 	void *addr;
1666 	mixer_ctrl_t *cp;
1667 {
1668 	struct yds_softc *sc = addr;
1669 
1670 	return (sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
1671 	    sc->sc_codec[0].codec_if, cp));
1672 }
1673 
1674 int
1675 yds_mixer_get_port(addr, cp)
1676 	void *addr;
1677 	mixer_ctrl_t *cp;
1678 {
1679 	struct yds_softc *sc = addr;
1680 
1681 	return (sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
1682 	    sc->sc_codec[0].codec_if, cp));
1683 }
1684 
1685 int
1686 yds_query_devinfo(addr, dip)
1687 	void *addr;
1688 	mixer_devinfo_t *dip;
1689 {
1690 	struct yds_softc *sc = addr;
1691 
1692 	return (sc->sc_codec[0].codec_if->vtbl->query_devinfo(
1693 	    sc->sc_codec[0].codec_if, dip));
1694 }
1695 
1696 int
1697 yds_get_portnum_by_name(sc, class, device, qualifier)
1698 	struct yds_softc *sc;
1699 	char *class, *device, *qualifier;
1700 {
1701 	return (sc->sc_codec[0].codec_if->vtbl->get_portnum_by_name(
1702 	    sc->sc_codec[0].codec_if, class, device, qualifier));
1703 }
1704 
1705 void *
1706 yds_malloc(addr, size, pool, flags)
1707 	void *addr;
1708 	u_long size;
1709 	int pool, flags;
1710 {
1711 	struct yds_softc *sc = addr;
1712 	struct yds_dma *p;
1713 	int error;
1714 
1715 	p = malloc(sizeof(*p), pool, flags);
1716 	if (!p)
1717 		return (0);
1718 	error = yds_allocmem(sc, size, 16, p);
1719 	if (error) {
1720 		free(p, pool);
1721 		return (0);
1722 	}
1723 	p->next = sc->sc_dmas;
1724 	sc->sc_dmas = p;
1725 	return (KERNADDR(p));
1726 }
1727 
1728 void
1729 yds_free(addr, ptr, pool)
1730 	void *addr;
1731 	void *ptr;
1732 	int pool;
1733 {
1734 	struct yds_softc *sc = addr;
1735 	struct yds_dma **pp, *p;
1736 
1737 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1738 		if (KERNADDR(p) == ptr) {
1739 			yds_freemem(sc, p);
1740 			*pp = p->next;
1741 			free(p, pool);
1742 			return;
1743 		}
1744 	}
1745 }
1746 
1747 static struct yds_dma *
1748 yds_find_dma(sc, addr)
1749 	struct yds_softc *sc;
1750 	void *addr;
1751 {
1752 	struct yds_dma *p;
1753 
1754 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
1755 		;
1756 
1757 	return p;
1758 }
1759 
1760 u_long
1761 yds_round_buffersize(addr, size)
1762 	void *addr;
1763 	u_long size;
1764 {
1765 	/*
1766 	 * Buffer size should be at least twice as bigger as a frame.
1767 	 */
1768 	if (size < 1024 * 3)
1769 		size = 1024 * 3;
1770 	return (size);
1771 }
1772 
1773 int
1774 yds_mappage(addr, mem, off, prot)
1775 	void *addr;
1776 	void *mem;
1777 	int off;
1778 	int prot;
1779 {
1780 	struct yds_softc *sc = addr;
1781 	struct yds_dma *p;
1782 
1783 	if (off < 0)
1784 		return (-1);
1785 	p = yds_find_dma(sc, mem);
1786 	if (!p)
1787 		return (-1);
1788 	return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1789 				off, prot, BUS_DMA_WAITOK));
1790 }
1791 
1792 int
1793 yds_get_props(addr)
1794 	void *addr;
1795 {
1796 	return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1797 		AUDIO_PROP_FULLDUPLEX);
1798 }
1799