xref: /freebsd/sys/dev/sound/pci/emu10kx-pcm.c (revision 4e99f45480598189d49d45a825533a6c9e12f02c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
5  * Copyright (c) 2003-2007 Yuriy Tsibizov <yuriy.tsibizov@gfk.ru>
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 AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #include <sys/param.h>
33 #include <sys/types.h>
34 #include <sys/bus.h>
35 #include <machine/bus.h>
36 #include <sys/rman.h>
37 #include <sys/systm.h>
38 #include <sys/sbuf.h>
39 #include <sys/queue.h>
40 #include <sys/systm.h>
41 #include <sys/lock.h>
42 #include <sys/mutex.h>
43 
44 #ifdef HAVE_KERNEL_OPTION_HEADERS
45 #include "opt_snd.h"
46 #endif
47 
48 #include <dev/sound/chip.h>
49 #include <dev/sound/pcm/sound.h>
50 #include <dev/sound/pcm/ac97.h>
51 
52 #include "mixer_if.h"
53 
54 #include <dev/sound/pci/emuxkireg.h>
55 #include <dev/sound/pci/emu10kx.h>
56 
57 struct emu_pcm_pchinfo {
58 	int		spd;
59 	int		fmt;
60 	unsigned int	blksz;
61 	int		run;
62 	struct emu_voice *master;
63 	struct emu_voice *slave;
64 	struct snd_dbuf	*buffer;
65 	struct pcm_channel *channel;
66 	struct emu_pcm_info *pcm;
67 	int		timer;
68 };
69 
70 struct emu_pcm_rchinfo {
71 	int		spd;
72 	int		fmt;
73 	unsigned int	blksz;
74 	int		run;
75 	uint32_t 	idxreg;
76 	uint32_t	basereg;
77 	uint32_t	sizereg;
78 	uint32_t	setupreg;
79 	uint32_t	irqmask;
80 	uint32_t	iprmask;
81 	int 		ihandle;
82 	struct snd_dbuf	*buffer;
83 	struct pcm_channel *channel;
84 	struct emu_pcm_info *pcm;
85 	int		timer;
86 };
87 
88 /* XXX Hardware playback channels */
89 #define	MAX_CHANNELS	4
90 
91 #if MAX_CHANNELS > 13
92 #error	Too many hardware channels defined. 13 is the maximum
93 #endif
94 
95 struct emu_pcm_info {
96 	struct mtx		*lock;
97 	device_t		dev;		/* device information */
98 	struct emu_sc_info 	*card;
99 	struct emu_pcm_pchinfo	pch[MAX_CHANNELS];	/* hardware channels */
100 	int			pnum;		/* next free channel number */
101 	struct emu_pcm_rchinfo	rch_adc;
102 	struct emu_pcm_rchinfo	rch_efx;
103 	struct emu_route	rt;
104 	struct emu_route	rt_mono;
105 	int			route;
106 	int			ihandle;	/* interrupt handler */
107 	unsigned int		bufsz;
108 	int			is_emu10k1;
109 	struct ac97_info	*codec;
110 	uint32_t 		ac97_state[0x7F];
111 	kobj_class_t		ac97_mixerclass;
112 	uint32_t		ac97_recdevs;
113 	uint32_t		ac97_playdevs;
114 	struct snd_mixer	*sm;
115 	int			mch_disabled;
116 	unsigned int		emu10k1_volcache[2][2];
117 };
118 
119 
120 static uint32_t emu_rfmt_adc[] = {
121 	SND_FORMAT(AFMT_S16_LE, 1, 0),
122 	SND_FORMAT(AFMT_S16_LE, 2, 0),
123 	0
124 };
125 static struct pcmchan_caps emu_reccaps_adc = {
126 	8000, 48000, emu_rfmt_adc, 0
127 };
128 
129 static uint32_t emu_rfmt_efx[] = {
130 	SND_FORMAT(AFMT_S16_LE, 1, 0),
131 	0
132 };
133 
134 static struct pcmchan_caps emu_reccaps_efx_live = {
135 	48000*32, 48000*32, emu_rfmt_efx, 0
136 };
137 
138 static struct pcmchan_caps emu_reccaps_efx_audigy = {
139 	48000*64, 48000*64, emu_rfmt_efx, 0
140 };
141 
142 static int emu_rates_live[] = {
143 	48000*32
144 };
145 
146 static int emu_rates_audigy[] = {
147 	48000*64
148 };
149 
150 static uint32_t emu_pfmt[] = {
151 	SND_FORMAT(AFMT_U8, 1, 0),
152 	SND_FORMAT(AFMT_U8, 2, 0),
153 	SND_FORMAT(AFMT_S16_LE, 1, 0),
154 	SND_FORMAT(AFMT_S16_LE, 2, 0),
155 	0
156 };
157 static uint32_t emu_pfmt_mono[] = {
158 	SND_FORMAT(AFMT_U8, 1, 0),
159 	SND_FORMAT(AFMT_S16_LE, 1, 0),
160 	0
161 };
162 
163 static struct pcmchan_caps emu_playcaps = {4000, 48000, emu_pfmt, 0};
164 static struct pcmchan_caps emu_playcaps_mono = {4000, 48000, emu_pfmt_mono, 0};
165 
166 static int emu10k1_adcspeed[8] = {48000, 44100, 32000, 24000, 22050, 16000, 11025, 8000};
167 /* audigy supports 12kHz. */
168 static int emu10k2_adcspeed[9] = {48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000};
169 
170 static uint32_t emu_pcm_intr(void *pcm, uint32_t stat);
171 
172 static const struct emu_dspmix_props_k1 {
173 	uint8_t	present;
174 	uint8_t	recdev;
175 	int8_t	input;
176 } dspmix_k1 [SOUND_MIXER_NRDEVICES] = {
177 	/* no mixer device for ac97 */		/* in0 AC97 */
178 	[SOUND_MIXER_DIGITAL1] = {1, 1, 1},	/* in1 CD SPDIF */
179 	/* not connected */			/* in2 (zoom) */
180 	[SOUND_MIXER_DIGITAL2] = {1, 1, 3},	/* in3 toslink */
181 	[SOUND_MIXER_LINE2] =    {1, 1, 4},	/* in4 Line-In2 */
182 	[SOUND_MIXER_DIGITAL3] = {1, 1, 5},	/* in5 on-card  SPDIF */
183 	[SOUND_MIXER_LINE3] =    {1, 1, 6},	/* in6 AUX2 */
184 	/* not connected */			/* in7 */
185 };
186 static const struct emu_dspmix_props_k2 {
187 	uint8_t	present;
188 	uint8_t	recdev;
189 	int8_t	input;
190 } dspmix_k2 [SOUND_MIXER_NRDEVICES] = {
191 	[SOUND_MIXER_VOLUME] =	{1, 0, (-1)},
192 	[SOUND_MIXER_PCM] =	{1, 0, (-1)},
193 
194 	/* no mixer device */			/* in0 AC97 */
195 	[SOUND_MIXER_DIGITAL1] = {1, 1, 1},	/* in1 CD SPDIF */
196 	[SOUND_MIXER_DIGITAL2] = {1, 1, 2},	/* in2 COAX SPDIF */
197 	/* not connected */			/* in3 */
198 	[SOUND_MIXER_LINE2] =    {1, 1, 4},	/* in4 Line-In2 */
199 	[SOUND_MIXER_DIGITAL3] = {1, 1, 5},	/* in5 on-card  SPDIF */
200 	[SOUND_MIXER_LINE3] =    {1, 1, 6},	/* in6 AUX2 */
201 	/* not connected */			/* in7 */
202 };
203 
204 static int
205 emu_dspmixer_init(struct snd_mixer *m)
206 {
207 	struct emu_pcm_info	*sc;
208 	int i;
209 	int p, r;
210 
211 	p = 0;
212 	r = 0;
213 
214 	sc = mix_getdevinfo(m);
215 
216 	if (sc->route == RT_FRONT) {
217 		/* create submixer for AC97 codec */
218 		if ((sc->ac97_mixerclass != NULL) && (sc->codec != NULL)) {
219 			sc->sm = mixer_create(sc->dev, sc->ac97_mixerclass, sc->codec, "ac97");
220 			if (sc->sm != NULL) {
221 				p = mix_getdevs(sc->sm);
222 				r = mix_getrecdevs(sc->sm);
223 			}
224 		}
225 
226 		sc->ac97_playdevs = p;
227 		sc->ac97_recdevs = r;
228 	}
229 
230 	/* This two are always here */
231 	p |= (1 << SOUND_MIXER_PCM);
232 	p |= (1 << SOUND_MIXER_VOLUME);
233 
234 	if (sc->route == RT_FRONT) {
235 		if (sc->is_emu10k1) {
236 			for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
237 				if (dspmix_k1[i].present)
238 					p |= (1 << i);
239 				if (dspmix_k1[i].recdev)
240 					r |= (1 << i);
241 			}
242 		} else {
243 			for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
244 				if (dspmix_k2[i].present)
245 					p |= (1 << i);
246 				if (dspmix_k2[i].recdev)
247 					r |= (1 << i);
248 			}
249 		}
250 	}
251 
252 	mix_setdevs(m, p);
253 	mix_setrecdevs(m, r);
254 
255 	return (0);
256 }
257 
258 static int
259 emu_dspmixer_uninit(struct snd_mixer *m)
260 {
261 	struct emu_pcm_info	*sc;
262 	int err = 0;
263 
264 	/* drop submixer for AC97 codec */
265 	sc = mix_getdevinfo(m);
266 	if (sc->sm != NULL) {
267 		err = mixer_delete(sc->sm);
268 		if (err)
269 			return (err);
270 		sc->sm = NULL;
271 	}
272 	return (0);
273 }
274 
275 static int
276 emu_dspmixer_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
277 {
278 	struct emu_pcm_info *sc;
279 
280 	sc = mix_getdevinfo(m);
281 
282 	switch (dev) {
283 	case SOUND_MIXER_VOLUME:
284 		switch (sc->route) {
285 		case RT_FRONT:
286 			if (sc->sm != NULL)
287 				mix_set(sc->sm, dev, left, right);
288 			if (sc->mch_disabled) {
289 				/* In emu10k1 case PCM volume does not affect
290 				   sound routed to rear & center/sub (it is connected
291 				   to AC97 codec). Calculate it manually. */
292 				/* This really should belong to emu10kx.c */
293 				if (sc->is_emu10k1) {
294 					sc->emu10k1_volcache[0][0] = left;
295 					left = left * sc->emu10k1_volcache[1][0] / 100;
296 					sc->emu10k1_volcache[0][1] = right;
297 					right = right * sc->emu10k1_volcache[1][1] / 100;
298 				}
299 
300 				emumix_set_volume(sc->card, M_MASTER_REAR_L, left);
301 				emumix_set_volume(sc->card, M_MASTER_REAR_R, right);
302 				if (!sc->is_emu10k1) {
303 					emumix_set_volume(sc->card, M_MASTER_CENTER, (left+right)/2);
304 					emumix_set_volume(sc->card, M_MASTER_SUBWOOFER, (left+right)/2);
305 					/* XXX side */
306 				}
307 			} /* mch disabled */
308 			break;
309 		case RT_REAR:
310 			emumix_set_volume(sc->card, M_MASTER_REAR_L, left);
311 			emumix_set_volume(sc->card, M_MASTER_REAR_R, right);
312 			break;
313 		case RT_CENTER:
314 			emumix_set_volume(sc->card, M_MASTER_CENTER, (left+right)/2);
315 			break;
316 		case RT_SUB:
317 			emumix_set_volume(sc->card, M_MASTER_SUBWOOFER, (left+right)/2);
318 			break;
319 		}
320 		break;
321 	case SOUND_MIXER_PCM:
322 		switch (sc->route) {
323 		case RT_FRONT:
324 			if (sc->sm != NULL)
325 				mix_set(sc->sm, dev, left, right);
326 			if (sc->mch_disabled) {
327 				/* See SOUND_MIXER_VOLUME case */
328 				if (sc->is_emu10k1) {
329 					sc->emu10k1_volcache[1][0] = left;
330 					left = left * sc->emu10k1_volcache[0][0] / 100;
331 					sc->emu10k1_volcache[1][1] = right;
332 					right = right * sc->emu10k1_volcache[0][1] / 100;
333 				}
334 				emumix_set_volume(sc->card, M_MASTER_REAR_L, left);
335 				emumix_set_volume(sc->card, M_MASTER_REAR_R, right);
336 
337 				if (!sc->is_emu10k1) {
338 					emumix_set_volume(sc->card, M_MASTER_CENTER, (left+right)/2);
339 					emumix_set_volume(sc->card, M_MASTER_SUBWOOFER, (left+right)/2);
340 					/* XXX side */
341 				}
342 			} /* mch_disabled */
343 			break;
344 		case RT_REAR:
345 			emumix_set_volume(sc->card, M_FX2_REAR_L, left);
346 			emumix_set_volume(sc->card, M_FX3_REAR_R, right);
347 			break;
348 		case RT_CENTER:
349 			emumix_set_volume(sc->card, M_FX4_CENTER, (left+right)/2);
350 			break;
351 		case RT_SUB:
352 			emumix_set_volume(sc->card, M_FX5_SUBWOOFER, (left+right)/2);
353 			break;
354 		}
355 		break;
356 	case SOUND_MIXER_DIGITAL1:	/* CD SPDIF, in1 */
357 			emumix_set_volume(sc->card, M_IN1_FRONT_L, left);
358 			emumix_set_volume(sc->card, M_IN1_FRONT_R, right);
359 		break;
360 	case SOUND_MIXER_DIGITAL2:
361 			if (sc->is_emu10k1) {
362 				/* TOSLink, in3 */
363 				emumix_set_volume(sc->card, M_IN3_FRONT_L, left);
364 				emumix_set_volume(sc->card, M_IN3_FRONT_R, right);
365 			} else {
366 				/* COAX SPDIF, in2 */
367 				emumix_set_volume(sc->card, M_IN2_FRONT_L, left);
368 				emumix_set_volume(sc->card, M_IN2_FRONT_R, right);
369 			}
370 		break;
371 	case SOUND_MIXER_LINE2:		/* Line-In2, in4 */
372 			emumix_set_volume(sc->card, M_IN4_FRONT_L, left);
373 			emumix_set_volume(sc->card, M_IN4_FRONT_R, right);
374 		break;
375 	case SOUND_MIXER_DIGITAL3:	/* on-card SPDIF, in5 */
376 			emumix_set_volume(sc->card, M_IN5_FRONT_L, left);
377 			emumix_set_volume(sc->card, M_IN5_FRONT_R, right);
378 		break;
379 	case SOUND_MIXER_LINE3:		/* AUX2, in6 */
380 			emumix_set_volume(sc->card, M_IN6_FRONT_L, left);
381 			emumix_set_volume(sc->card, M_IN6_FRONT_R, right);
382 		break;
383 	default:
384 		if (sc->sm != NULL) {
385 			/* XXX emumix_set_volume is not required here */
386 			emumix_set_volume(sc->card, M_IN0_FRONT_L, 100);
387 			emumix_set_volume(sc->card, M_IN0_FRONT_R, 100);
388 			mix_set(sc->sm, dev, left, right);
389 		} else
390 			device_printf(sc->dev, "mixer error: unknown device %d\n", dev);
391 	}
392 	return  (0);
393 }
394 
395 static u_int32_t
396 emu_dspmixer_setrecsrc(struct snd_mixer *m, u_int32_t src)
397 {
398 	struct emu_pcm_info *sc;
399 	int i;
400 	u_int32_t recmask;
401 	int	input[8];
402 
403 	sc = mix_getdevinfo(m);
404 	recmask = 0;
405 	for (i=0; i < 8; i++)
406 		input[i]=0;
407 
408 	if (sc->sm != NULL)
409 		if ((src & sc->ac97_recdevs) !=0)
410 			if (mix_setrecsrc(sc->sm, src & sc->ac97_recdevs) == 0) {
411 				recmask |= (src & sc->ac97_recdevs);
412 				/* Recording from AC97 codec.
413 				   Enable AC97 route to rec on DSP */
414 				input[0] = 1;
415 			}
416 	if (sc->is_emu10k1) {
417 		for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
418 			if (dspmix_k1[i].recdev)
419 				if ((src & (1 << i)) == ((uint32_t)1 << i)) {
420 				recmask |= (1 << i);
421 				/* enable device i */
422 				input[dspmix_k1[i].input] = 1;
423 				}
424 		}
425 	} else {
426 		for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
427 			if (dspmix_k2[i].recdev)
428 				if ((src & (1 << i)) == ((uint32_t)1 << i)) {
429 				recmask |= (1 << i);
430 				/* enable device i */
431 				input[dspmix_k2[i].input] = 1;
432 				}
433 		}
434 	}
435 	emumix_set_volume(sc->card, M_IN0_REC_L, input[0] == 1 ? 100 : 0);
436 	emumix_set_volume(sc->card, M_IN0_REC_R, input[0] == 1 ? 100 : 0);
437 
438 	emumix_set_volume(sc->card, M_IN1_REC_L, input[1] == 1 ? 100 : 0);
439 	emumix_set_volume(sc->card, M_IN1_REC_R, input[1] == 1 ? 100 : 0);
440 
441 	if (!sc->is_emu10k1) {
442 		emumix_set_volume(sc->card, M_IN2_REC_L, input[2] == 1 ? 100 : 0);
443 		emumix_set_volume(sc->card, M_IN2_REC_R, input[2] == 1 ? 100 : 0);
444 	}
445 
446 	if (sc->is_emu10k1) {
447 		emumix_set_volume(sc->card, M_IN3_REC_L, input[3] == 1 ? 100 : 0);
448 		emumix_set_volume(sc->card, M_IN3_REC_R, input[3] == 1 ? 100 : 0);
449 	}
450 
451 	emumix_set_volume(sc->card, M_IN4_REC_L, input[4] == 1 ? 100 : 0);
452 	emumix_set_volume(sc->card, M_IN4_REC_R, input[4] == 1 ? 100 : 0);
453 
454 	emumix_set_volume(sc->card, M_IN5_REC_L, input[5] == 1 ? 100 : 0);
455 	emumix_set_volume(sc->card, M_IN5_REC_R, input[5] == 1 ? 100 : 0);
456 
457 	emumix_set_volume(sc->card, M_IN6_REC_L, input[6] == 1 ? 100 : 0);
458 	emumix_set_volume(sc->card, M_IN6_REC_R, input[6] == 1 ? 100 : 0);
459 
460 	/* XXX check for K1/k2 differences? */
461 	if ((src & (1 << SOUND_MIXER_PCM)) == (1 << SOUND_MIXER_PCM)) {
462 		emumix_set_volume(sc->card, M_FX0_REC_L, emumix_get_volume(sc->card, M_FX0_FRONT_L));
463 		emumix_set_volume(sc->card, M_FX1_REC_R, emumix_get_volume(sc->card, M_FX1_FRONT_R));
464 	} else {
465 		emumix_set_volume(sc->card, M_FX0_REC_L, 0);
466 		emumix_set_volume(sc->card, M_FX1_REC_R, 0);
467 	}
468 
469 	return (recmask);
470 }
471 
472 static kobj_method_t emudspmixer_methods[] = {
473 	KOBJMETHOD(mixer_init,		emu_dspmixer_init),
474 	KOBJMETHOD(mixer_uninit,	emu_dspmixer_uninit),
475 	KOBJMETHOD(mixer_set,		emu_dspmixer_set),
476 	KOBJMETHOD(mixer_setrecsrc,	emu_dspmixer_setrecsrc),
477 	KOBJMETHOD_END
478 };
479 MIXER_DECLARE(emudspmixer);
480 
481 static int
482 emu_efxmixer_init(struct snd_mixer *m)
483 {
484 	mix_setdevs(m, SOUND_MASK_VOLUME);
485 	mix_setrecdevs(m, SOUND_MASK_MONITOR);
486 	return (0);
487 }
488 
489 static int
490 emu_efxmixer_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
491 {
492 	if (left + right == 200) return (0);
493 	return  (0);
494 }
495 
496 static u_int32_t
497 emu_efxmixer_setrecsrc(struct snd_mixer *m __unused, u_int32_t src __unused)
498 {
499 	return (SOUND_MASK_MONITOR);
500 }
501 
502 static kobj_method_t emuefxmixer_methods[] = {
503 	KOBJMETHOD(mixer_init,		emu_efxmixer_init),
504 	KOBJMETHOD(mixer_set,		emu_efxmixer_set),
505 	KOBJMETHOD(mixer_setrecsrc,	emu_efxmixer_setrecsrc),
506 	KOBJMETHOD_END
507 };
508 MIXER_DECLARE(emuefxmixer);
509 
510 /*
511  * AC97 emulation code for Audigy and later cards.
512  * Some parts of AC97 codec are not used by hardware, but can be used
513  * to change some DSP controls via AC97 mixer interface. This includes:
514  * - master volume controls MASTER_FRONT_[R|L]
515  * - pcm volume controls FX[0|1]_FRONT_[R|L]
516  * - rec volume controls MASTER_REC_[R|L]
517  * We do it because we need to put it under user control....
518  * We also keep some parts of AC97 disabled to get better sound quality
519  */
520 
521 #define	AC97LEFT(x)	((x & 0x7F00)>>8)
522 #define	AC97RIGHT(x)	(x & 0x007F)
523 #define	AC97MUTE(x)	((x & 0x8000)>>15)
524 #define	BIT4_TO100(x)	(100-(x)*100/(0x0f))
525 #define	BIT6_TO100(x)	(100-(x)*100/(0x3f))
526 #define	BIT4_TO255(x)	(255-(x)*255/(0x0f))
527 #define	BIT6_TO255(x)	(255-(x)*255/(0x3f))
528 #define	V100_TOBIT6(x)	(0x3f*(100-x)/100)
529 #define	V100_TOBIT4(x)	(0x0f*(100-x)/100)
530 #define	AC97ENCODE(x_muted, x_left, x_right)	(((x_muted & 1)<<15) | ((x_left & 0x3f)<<8) | (x_right & 0x3f))
531 
532 static int
533 emu_ac97_read_emulation(struct emu_pcm_info *sc, int regno)
534 {
535 	int use_ac97;
536 	int emulated;
537 	int tmp;
538 
539 	use_ac97 = 1;
540 	emulated = 0;
541 
542 	switch (regno) {
543 	case AC97_MIX_MASTER:
544 		emulated = sc->ac97_state[AC97_MIX_MASTER];
545 		use_ac97 = 0;
546 		break;
547 	case AC97_MIX_PCM:
548 		emulated = sc->ac97_state[AC97_MIX_PCM];
549 		use_ac97 = 0;
550 		break;
551 	case AC97_REG_RECSEL:
552 		emulated = 0x0505;
553 		use_ac97 = 0;
554 		break;
555 	case AC97_MIX_RGAIN:
556 		emulated = sc->ac97_state[AC97_MIX_RGAIN];
557 		use_ac97 = 0;
558 		break;
559 	}
560 
561 	emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
562 	tmp = emu_rd(sc->card, EMU_AC97DATA, 2);
563 
564 	if (use_ac97)
565 		emulated = tmp;
566 
567 	return (emulated);
568 }
569 
570 static void
571 emu_ac97_write_emulation(struct emu_pcm_info *sc, int regno, uint32_t data)
572 {
573 	int write_ac97;
574 	int left, right;
575 	uint32_t emu_left, emu_right;
576 	int is_mute;
577 
578 	write_ac97 = 1;
579 
580 	left = AC97LEFT(data);
581 	emu_left = BIT6_TO100(left);	/* We show us as 6-bit AC97 mixer */
582 	right = AC97RIGHT(data);
583 	emu_right = BIT6_TO100(right);
584 	is_mute = AC97MUTE(data);
585 	if (is_mute)
586 		emu_left = emu_right = 0;
587 
588 	switch (regno) {
589 		/* TODO: reset emulator on AC97_RESET */
590 	case AC97_MIX_MASTER:
591 		emumix_set_volume(sc->card, M_MASTER_FRONT_L, emu_left);
592 		emumix_set_volume(sc->card, M_MASTER_FRONT_R, emu_right);
593 		sc->ac97_state[AC97_MIX_MASTER] = data & (0x8000 | 0x3f3f);
594 		data = 0x8000;	/* Mute AC97 main out */
595 		break;
596 	case AC97_MIX_PCM:	/* PCM OUT VOL */
597 		emumix_set_volume(sc->card, M_FX0_FRONT_L, emu_left);
598 		emumix_set_volume(sc->card, M_FX1_FRONT_R, emu_right);
599 		sc->ac97_state[AC97_MIX_PCM] = data & (0x8000 | 0x3f3f);
600 		data = 0x8000;	/* Mute AC97 PCM out */
601 		break;
602 	case AC97_REG_RECSEL:
603 		/*
604 		 * PCM recording source is set to "stereo mix" (labeled "vol"
605 		 * in mixer). There is no 'playback' from AC97 codec -
606 		 * if you want to hear anything from AC97 you have to _record_
607 		 * it. Keep things simple and record "stereo mix".
608 		 */
609 		data = 0x0505;
610 		break;
611 	case AC97_MIX_RGAIN:	/* RECORD GAIN */
612 		emu_left = BIT4_TO100(left);	/* rgain is 4-bit */
613 		emu_right = BIT4_TO100(right);
614 		emumix_set_volume(sc->card, M_MASTER_REC_L, 100-emu_left);
615 		emumix_set_volume(sc->card, M_MASTER_REC_R, 100-emu_right);
616 		/*
617 		 * Record gain on AC97 should stay zero to get AC97 sound on
618 		 * AC97_[RL] connectors on EMU10K2 chip. AC97 on Audigy is not
619 		 * directly connected to any output, only to EMU10K2 chip Use
620 		 * this control to set AC97 mix volume inside EMU10K2 chip
621 		 */
622 		sc->ac97_state[AC97_MIX_RGAIN] = data & (0x8000 | 0x0f0f);
623 		data = 0x0000;
624 		break;
625 	}
626 	if (write_ac97) {
627 		emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
628 		emu_wr(sc->card, EMU_AC97DATA, data, 2);
629 	}
630 }
631 
632 static int
633 emu_erdcd(kobj_t obj __unused, void *devinfo, int regno)
634 {
635 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
636 
637 	return (emu_ac97_read_emulation(sc, regno));
638 }
639 
640 static int
641 emu_ewrcd(kobj_t obj __unused, void *devinfo, int regno, uint32_t data)
642 {
643 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
644 
645 	emu_ac97_write_emulation(sc, regno, data);
646 	return (0);
647 }
648 
649 static kobj_method_t emu_eac97_methods[] = {
650 	KOBJMETHOD(ac97_read, emu_erdcd),
651 	KOBJMETHOD(ac97_write, emu_ewrcd),
652 	KOBJMETHOD_END
653 };
654 AC97_DECLARE(emu_eac97);
655 
656 /* real ac97 codec */
657 static int
658 emu_rdcd(kobj_t obj __unused, void *devinfo, int regno)
659 {
660 	int rd;
661 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
662 
663 	KASSERT(sc->card != NULL, ("emu_rdcd: no soundcard"));
664 	emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
665 	rd = emu_rd(sc->card, EMU_AC97DATA, 2);
666 	return (rd);
667 }
668 
669 static int
670 emu_wrcd(kobj_t obj __unused, void *devinfo, int regno, uint32_t data)
671 {
672 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
673 
674 	KASSERT(sc->card != NULL, ("emu_wrcd: no soundcard"));
675 	emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
676 	emu_wr(sc->card, EMU_AC97DATA, data, 2);
677 	return (0);
678 }
679 
680 static kobj_method_t emu_ac97_methods[] = {
681 	KOBJMETHOD(ac97_read, emu_rdcd),
682 	KOBJMETHOD(ac97_write, emu_wrcd),
683 	KOBJMETHOD_END
684 };
685 AC97_DECLARE(emu_ac97);
686 
687 
688 static int
689 emu_k1_recval(int speed)
690 {
691 	int val;
692 
693 	val = 0;
694 	while ((val < 7) && (speed < emu10k1_adcspeed[val]))
695 		val++;
696 	return (val);
697 }
698 
699 static int
700 emu_k2_recval(int speed)
701 {
702 	int val;
703 
704 	val = 0;
705 	while ((val < 8) && (speed < emu10k2_adcspeed[val]))
706 		val++;
707 	return (val);
708 }
709 
710 static void *
711 emupchan_init(kobj_t obj __unused, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir __unused)
712 {
713 	struct emu_pcm_info *sc = devinfo;
714 	struct emu_pcm_pchinfo *ch;
715 	void *r;
716 
717 	KASSERT(dir == PCMDIR_PLAY, ("emupchan_init: bad direction"));
718 	KASSERT(sc->card != NULL, ("empchan_init: no soundcard"));
719 
720 
721 	if (sc->pnum >= MAX_CHANNELS)
722 		return (NULL);
723 	ch = &(sc->pch[sc->pnum++]);
724 	ch->buffer = b;
725 	ch->pcm = sc;
726 	ch->channel = c;
727 	ch->blksz = sc->bufsz;
728 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
729 	ch->spd = 8000;
730 	ch->master = emu_valloc(sc->card);
731 	/*
732 	 * XXX we have to allocate slave even for mono channel until we
733 	 * fix emu_vfree to handle this case.
734 	 */
735 	ch->slave = emu_valloc(sc->card);
736 	ch->timer = emu_timer_create(sc->card);
737 	r = (emu_vinit(sc->card, ch->master, ch->slave, EMU_PLAY_BUFSZ, ch->buffer)) ? NULL : ch;
738 	return (r);
739 }
740 
741 static int
742 emupchan_free(kobj_t obj __unused, void *c_devinfo)
743 {
744 	struct emu_pcm_pchinfo *ch = c_devinfo;
745 	struct emu_pcm_info *sc = ch->pcm;
746 
747 	emu_timer_clear(sc->card, ch->timer);
748 	if (ch->slave != NULL)
749 		emu_vfree(sc->card, ch->slave);
750 	emu_vfree(sc->card, ch->master);
751 	return (0);
752 }
753 
754 static int
755 emupchan_setformat(kobj_t obj __unused, void *c_devinfo, uint32_t format)
756 {
757 	struct emu_pcm_pchinfo *ch = c_devinfo;
758 
759 	ch->fmt = format;
760 	return (0);
761 }
762 
763 static uint32_t
764 emupchan_setspeed(kobj_t obj __unused, void *c_devinfo, uint32_t speed)
765 {
766 	struct emu_pcm_pchinfo *ch = c_devinfo;
767 
768 	ch->spd = speed;
769 	return (ch->spd);
770 }
771 
772 static uint32_t
773 emupchan_setblocksize(kobj_t obj __unused, void *c_devinfo, uint32_t blocksize)
774 {
775 	struct emu_pcm_pchinfo *ch = c_devinfo;
776 	struct emu_pcm_info *sc = ch->pcm;
777 
778 	if (blocksize > ch->pcm->bufsz)
779 		blocksize = ch->pcm->bufsz;
780 	snd_mtxlock(sc->lock);
781 	ch->blksz = blocksize;
782 	emu_timer_set(sc->card, ch->timer, ch->blksz / sndbuf_getalign(ch->buffer));
783 	snd_mtxunlock(sc->lock);
784 	return (ch->blksz);
785 }
786 
787 static int
788 emupchan_trigger(kobj_t obj __unused, void *c_devinfo, int go)
789 {
790 	struct emu_pcm_pchinfo *ch = c_devinfo;
791 	struct emu_pcm_info *sc = ch->pcm;
792 
793 	if (!PCMTRIG_COMMON(go))
794 		return (0);
795 
796 	snd_mtxlock(sc->lock); /* XXX can we trigger on parallel threads ? */
797 	if (go == PCMTRIG_START) {
798 		emu_vsetup(ch->master, ch->fmt, ch->spd);
799 		if (AFMT_CHANNEL(ch->fmt) > 1)
800 			emu_vroute(sc->card, &(sc->rt), ch->master);
801 		else
802 			emu_vroute(sc->card, &(sc->rt_mono), ch->master);
803 		emu_vwrite(sc->card, ch->master);
804 		emu_timer_set(sc->card, ch->timer, ch->blksz / sndbuf_getalign(ch->buffer));
805 		emu_timer_enable(sc->card, ch->timer, 1);
806 	}
807 	/* PCM interrupt handler will handle PCMTRIG_STOP event */
808 	ch->run = (go == PCMTRIG_START) ? 1 : 0;
809 	emu_vtrigger(sc->card, ch->master, ch->run);
810 	snd_mtxunlock(sc->lock);
811 	return (0);
812 }
813 
814 static uint32_t
815 emupchan_getptr(kobj_t obj __unused, void *c_devinfo)
816 {
817 	struct emu_pcm_pchinfo *ch = c_devinfo;
818 	struct emu_pcm_info *sc = ch->pcm;
819 	int r;
820 
821 	r = emu_vpos(sc->card, ch->master);
822 
823 	return (r);
824 }
825 
826 static struct pcmchan_caps *
827 emupchan_getcaps(kobj_t obj __unused, void *c_devinfo __unused)
828 {
829 	struct emu_pcm_pchinfo *ch = c_devinfo;
830 	struct emu_pcm_info *sc = ch->pcm;
831 
832 	switch (sc->route) {
833 	case RT_FRONT:
834 		/* FALLTHROUGH */
835 	case RT_REAR:
836 		/* FALLTHROUGH */
837 	case RT_SIDE:
838 		return (&emu_playcaps);
839 		break;
840 	case RT_CENTER:
841 		/* FALLTHROUGH */
842 	case RT_SUB:
843 		return (&emu_playcaps_mono);
844 		break;
845 	}
846 	return (NULL);
847 }
848 
849 static kobj_method_t emupchan_methods[] = {
850 	KOBJMETHOD(channel_init, emupchan_init),
851 	KOBJMETHOD(channel_free, emupchan_free),
852 	KOBJMETHOD(channel_setformat, emupchan_setformat),
853 	KOBJMETHOD(channel_setspeed, emupchan_setspeed),
854 	KOBJMETHOD(channel_setblocksize, emupchan_setblocksize),
855 	KOBJMETHOD(channel_trigger, emupchan_trigger),
856 	KOBJMETHOD(channel_getptr, emupchan_getptr),
857 	KOBJMETHOD(channel_getcaps, emupchan_getcaps),
858 	KOBJMETHOD_END
859 };
860 CHANNEL_DECLARE(emupchan);
861 
862 static void *
863 emurchan_init(kobj_t obj __unused, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir __unused)
864 {
865 	struct emu_pcm_info *sc = devinfo;
866 	struct emu_pcm_rchinfo *ch;
867 
868 	KASSERT(dir == PCMDIR_REC, ("emurchan_init: bad direction"));
869 	ch = &sc->rch_adc;
870 	ch->buffer = b;
871 	ch->pcm = sc;
872 	ch->channel = c;
873 	ch->blksz = sc->bufsz / 2; /* We rise interrupt for half-full buffer */
874 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
875 	ch->spd = 8000;
876 	ch->idxreg = sc->is_emu10k1 ? EMU_ADCIDX : EMU_A_ADCIDX;
877 	ch->basereg = EMU_ADCBA;
878 	ch->sizereg = EMU_ADCBS;
879 	ch->setupreg = EMU_ADCCR;
880 	ch->irqmask = EMU_INTE_ADCBUFENABLE;
881 	ch->iprmask = EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL;
882 
883 	if (sndbuf_alloc(ch->buffer, emu_gettag(sc->card), 0, sc->bufsz) != 0)
884 		return (NULL);
885 	else {
886 		ch->timer = emu_timer_create(sc->card);
887 		emu_wrptr(sc->card, 0, ch->basereg, sndbuf_getbufaddr(ch->buffer));
888 		emu_wrptr(sc->card, 0, ch->sizereg, 0);	/* off */
889 		return (ch);
890 	}
891 }
892 
893 static int
894 emurchan_free(kobj_t obj __unused, void *c_devinfo)
895 {
896 	struct emu_pcm_rchinfo *ch = c_devinfo;
897 	struct emu_pcm_info *sc = ch->pcm;
898 
899 	emu_timer_clear(sc->card, ch->timer);
900 	return (0);
901 }
902 
903 static int
904 emurchan_setformat(kobj_t obj __unused, void *c_devinfo, uint32_t format)
905 {
906 	struct emu_pcm_rchinfo *ch = c_devinfo;
907 
908 	ch->fmt = format;
909 	return (0);
910 }
911 
912 static uint32_t
913 emurchan_setspeed(kobj_t obj __unused, void *c_devinfo, uint32_t speed)
914 {
915 	struct emu_pcm_rchinfo *ch = c_devinfo;
916 
917 	if (ch->pcm->is_emu10k1) {
918 		speed = emu10k1_adcspeed[emu_k1_recval(speed)];
919 	} else {
920 		speed = emu10k2_adcspeed[emu_k2_recval(speed)];
921 	}
922 	ch->spd = speed;
923 	return (ch->spd);
924 }
925 
926 static uint32_t
927 emurchan_setblocksize(kobj_t obj __unused, void *c_devinfo, uint32_t blocksize)
928 {
929 	struct emu_pcm_rchinfo *ch = c_devinfo;
930 	struct emu_pcm_info *sc = ch->pcm;
931 
932 	ch->blksz = blocksize;
933 	/*
934 	 * If blocksize is less than half of buffer size we will not get
935 	 * BUFHALFFULL interrupt in time and channel will need to generate
936 	 * (and use) timer interrupts. Otherwise channel will be marked dead.
937 	 */
938 	if (ch->blksz < (ch->pcm->bufsz / 2)) {
939 		emu_timer_set(sc->card, ch->timer, ch->blksz / sndbuf_getalign(ch->buffer));
940 		emu_timer_enable(sc->card, ch->timer, 1);
941 	} else {
942 		emu_timer_enable(sc->card, ch->timer, 0);
943 	}
944 	return (ch->blksz);
945 }
946 
947 static int
948 emurchan_trigger(kobj_t obj __unused, void *c_devinfo, int go)
949 {
950 	struct emu_pcm_rchinfo *ch = c_devinfo;
951 	struct emu_pcm_info *sc = ch->pcm;
952 	uint32_t val, sz;
953 
954 	if (!PCMTRIG_COMMON(go))
955 		return (0);
956 
957 	switch (sc->bufsz) {
958 	case 4096:
959 		sz = EMU_RECBS_BUFSIZE_4096;
960 		break;
961 	case 8192:
962 		sz = EMU_RECBS_BUFSIZE_8192;
963 		break;
964 	case 16384:
965 		sz = EMU_RECBS_BUFSIZE_16384;
966 		break;
967 	case 32768:
968 		sz = EMU_RECBS_BUFSIZE_32768;
969 		break;
970 	case 65536:
971 		sz = EMU_RECBS_BUFSIZE_65536;
972 		break;
973 	default:
974 		sz = EMU_RECBS_BUFSIZE_4096;
975 	}
976 
977 	snd_mtxlock(sc->lock);
978 	switch (go) {
979 	case PCMTRIG_START:
980 		ch->run = 1;
981 		emu_wrptr(sc->card, 0, ch->sizereg, sz);
982 		val = sc->is_emu10k1 ? EMU_ADCCR_LCHANENABLE : EMU_A_ADCCR_LCHANENABLE;
983 		if (AFMT_CHANNEL(ch->fmt) > 1)
984 			val |= sc->is_emu10k1 ? EMU_ADCCR_RCHANENABLE : EMU_A_ADCCR_RCHANENABLE;
985 		val |= sc->is_emu10k1 ? emu_k1_recval(ch->spd) : emu_k2_recval(ch->spd);
986 		emu_wrptr(sc->card, 0, ch->setupreg, 0);
987 		emu_wrptr(sc->card, 0, ch->setupreg, val);
988 		ch->ihandle = emu_intr_register(sc->card, ch->irqmask, ch->iprmask, &emu_pcm_intr, sc);
989 		break;
990 	case PCMTRIG_STOP:
991 		/* FALLTHROUGH */
992 	case PCMTRIG_ABORT:
993 		ch->run = 0;
994 		emu_wrptr(sc->card, 0, ch->sizereg, 0);
995 		if (ch->setupreg)
996 			emu_wrptr(sc->card, 0, ch->setupreg, 0);
997 		(void)emu_intr_unregister(sc->card, ch->ihandle);
998 		break;
999 	case PCMTRIG_EMLDMAWR:
1000 		/* FALLTHROUGH */
1001 	case PCMTRIG_EMLDMARD:
1002 		/* FALLTHROUGH */
1003 	default:
1004 		break;
1005 	}
1006 	snd_mtxunlock(sc->lock);
1007 
1008 	return (0);
1009 }
1010 
1011 static uint32_t
1012 emurchan_getptr(kobj_t obj __unused, void *c_devinfo)
1013 {
1014 	struct emu_pcm_rchinfo *ch = c_devinfo;
1015 	struct emu_pcm_info *sc = ch->pcm;
1016 	int r;
1017 
1018 	r = emu_rdptr(sc->card, 0, ch->idxreg) & 0x0000ffff;
1019 
1020 	return (r);
1021 }
1022 
1023 static struct pcmchan_caps *
1024 emurchan_getcaps(kobj_t obj __unused, void *c_devinfo __unused)
1025 {
1026 	return (&emu_reccaps_adc);
1027 }
1028 
1029 static kobj_method_t emurchan_methods[] = {
1030 	KOBJMETHOD(channel_init, emurchan_init),
1031 	KOBJMETHOD(channel_free, emurchan_free),
1032 	KOBJMETHOD(channel_setformat, emurchan_setformat),
1033 	KOBJMETHOD(channel_setspeed, emurchan_setspeed),
1034 	KOBJMETHOD(channel_setblocksize, emurchan_setblocksize),
1035 	KOBJMETHOD(channel_trigger, emurchan_trigger),
1036 	KOBJMETHOD(channel_getptr, emurchan_getptr),
1037 	KOBJMETHOD(channel_getcaps, emurchan_getcaps),
1038 	KOBJMETHOD_END
1039 };
1040 CHANNEL_DECLARE(emurchan);
1041 
1042 static void *
1043 emufxrchan_init(kobj_t obj __unused, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir __unused)
1044 {
1045 	struct emu_pcm_info *sc = devinfo;
1046 	struct emu_pcm_rchinfo *ch;
1047 
1048 	KASSERT(dir == PCMDIR_REC, ("emurchan_init: bad direction"));
1049 
1050 	if (sc == NULL) return (NULL);
1051 
1052 	ch = &(sc->rch_efx);
1053 	ch->fmt = SND_FORMAT(AFMT_S16_LE, 1, 0);
1054 	ch->spd = sc->is_emu10k1 ? 48000*32 : 48000 * 64;
1055 	ch->idxreg = EMU_FXIDX;
1056 	ch->basereg = EMU_FXBA;
1057 	ch->sizereg = EMU_FXBS;
1058 	ch->irqmask = EMU_INTE_EFXBUFENABLE;
1059 	ch->iprmask = EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL;
1060 	ch->buffer = b;
1061 	ch->pcm = sc;
1062 	ch->channel = c;
1063 	ch->blksz = sc->bufsz / 2;
1064 
1065 	if (sndbuf_alloc(ch->buffer, emu_gettag(sc->card), 0, sc->bufsz) != 0)
1066 		return (NULL);
1067 	else {
1068 		emu_wrptr(sc->card, 0, ch->basereg, sndbuf_getbufaddr(ch->buffer));
1069 		emu_wrptr(sc->card, 0, ch->sizereg, 0);	/* off */
1070 		return (ch);
1071 	}
1072 }
1073 
1074 static int
1075 emufxrchan_setformat(kobj_t obj __unused, void *c_devinfo __unused, uint32_t format)
1076 {
1077 	if (format == SND_FORMAT(AFMT_S16_LE, 1, 0)) return (0);
1078 	return (EINVAL);
1079 }
1080 
1081 static uint32_t
1082 emufxrchan_setspeed(kobj_t obj __unused, void *c_devinfo, uint32_t speed)
1083 {
1084 	struct emu_pcm_rchinfo *ch = c_devinfo;
1085 
1086 	/* FIXED RATE CHANNEL */
1087 	return (ch->spd);
1088 }
1089 
1090 static uint32_t
1091 emufxrchan_setblocksize(kobj_t obj __unused, void *c_devinfo, uint32_t blocksize)
1092 {
1093 	struct emu_pcm_rchinfo *ch = c_devinfo;
1094 
1095 	ch->blksz = blocksize;
1096 	/*
1097 	 * XXX If blocksize is less than half of buffer size we will not get
1098 	 * interrupt in time and channel will die due to interrupt timeout.
1099 	 * This	should not happen with FX rchan, because it will fill buffer
1100 	 * very	fast (64K buffer is 0.021seconds on Audigy).
1101 	 */
1102 	if (ch->blksz < (ch->pcm->bufsz / 2))
1103 		ch->blksz = ch->pcm->bufsz / 2;
1104 	return (ch->blksz);
1105 }
1106 
1107 static int
1108 emufxrchan_trigger(kobj_t obj __unused, void *c_devinfo, int go)
1109 {
1110 	struct emu_pcm_rchinfo *ch = c_devinfo;
1111 	struct emu_pcm_info *sc = ch->pcm;
1112 	uint32_t sz;
1113 
1114 	if (!PCMTRIG_COMMON(go))
1115 		return (0);
1116 
1117 	switch (sc->bufsz) {
1118 	case 4096:
1119 		sz = EMU_RECBS_BUFSIZE_4096;
1120 		break;
1121 	case 8192:
1122 		sz = EMU_RECBS_BUFSIZE_8192;
1123 		break;
1124 	case 16384:
1125 		sz = EMU_RECBS_BUFSIZE_16384;
1126 		break;
1127 	case 32768:
1128 		sz = EMU_RECBS_BUFSIZE_32768;
1129 		break;
1130 	case 65536:
1131 		sz = EMU_RECBS_BUFSIZE_65536;
1132 		break;
1133 	default:
1134 		sz = EMU_RECBS_BUFSIZE_4096;
1135 	}
1136 
1137 	snd_mtxlock(sc->lock);
1138 	switch (go) {
1139 	case PCMTRIG_START:
1140 		ch->run = 1;
1141 		emu_wrptr(sc->card, 0, ch->sizereg, sz);
1142 		ch->ihandle = emu_intr_register(sc->card, ch->irqmask, ch->iprmask, &emu_pcm_intr, sc);
1143 		/*
1144 		 * SB Live! is limited to 32 mono channels. Audigy
1145 		 * has 64 mono channels. Channels are enabled
1146 		 * by setting a bit in EMU_A_FXWC[1|2] registers.
1147 		 */
1148 		/* XXX there is no way to demultiplex this streams for now */
1149 		if (sc->is_emu10k1) {
1150 			emu_wrptr(sc->card, 0, EMU_FXWC, 0xffffffff);
1151 		} else {
1152 			emu_wrptr(sc->card, 0, EMU_A_FXWC1, 0xffffffff);
1153 			emu_wrptr(sc->card, 0, EMU_A_FXWC2, 0xffffffff);
1154 		}
1155 		break;
1156 	case PCMTRIG_STOP:
1157 		/* FALLTHROUGH */
1158 	case PCMTRIG_ABORT:
1159 		ch->run = 0;
1160 		if (sc->is_emu10k1) {
1161 			emu_wrptr(sc->card, 0, EMU_FXWC, 0x0);
1162 		} else {
1163 			emu_wrptr(sc->card, 0, EMU_A_FXWC1, 0x0);
1164 			emu_wrptr(sc->card, 0, EMU_A_FXWC2, 0x0);
1165 		}
1166 		emu_wrptr(sc->card, 0, ch->sizereg, 0);
1167 		(void)emu_intr_unregister(sc->card, ch->ihandle);
1168 		break;
1169 	case PCMTRIG_EMLDMAWR:
1170 		/* FALLTHROUGH */
1171 	case PCMTRIG_EMLDMARD:
1172 		/* FALLTHROUGH */
1173 	default:
1174 		break;
1175 	}
1176 	snd_mtxunlock(sc->lock);
1177 
1178 	return (0);
1179 }
1180 
1181 static uint32_t
1182 emufxrchan_getptr(kobj_t obj __unused, void *c_devinfo)
1183 {
1184 	struct emu_pcm_rchinfo *ch = c_devinfo;
1185 	struct emu_pcm_info *sc = ch->pcm;
1186 	int r;
1187 
1188 	r = emu_rdptr(sc->card, 0, ch->idxreg) & 0x0000ffff;
1189 
1190 	return (r);
1191 }
1192 
1193 static struct pcmchan_caps *
1194 emufxrchan_getcaps(kobj_t obj __unused, void *c_devinfo)
1195 {
1196 	struct emu_pcm_rchinfo *ch = c_devinfo;
1197 	struct emu_pcm_info *sc = ch->pcm;
1198 
1199 	if (sc->is_emu10k1)
1200 		return (&emu_reccaps_efx_live);
1201 	return (&emu_reccaps_efx_audigy);
1202 
1203 }
1204 
1205 static int
1206 emufxrchan_getrates(kobj_t obj __unused, void *c_devinfo, int **rates)
1207 {
1208 	struct emu_pcm_rchinfo *ch = c_devinfo;
1209 	struct emu_pcm_info *sc = ch->pcm;
1210 
1211 	if (sc->is_emu10k1)
1212 		*rates = emu_rates_live;
1213 	else
1214 		*rates = emu_rates_audigy;
1215 
1216 	return 1;
1217 }
1218 
1219 static kobj_method_t emufxrchan_methods[] = {
1220 	KOBJMETHOD(channel_init, emufxrchan_init),
1221 	KOBJMETHOD(channel_setformat, emufxrchan_setformat),
1222 	KOBJMETHOD(channel_setspeed, emufxrchan_setspeed),
1223 	KOBJMETHOD(channel_setblocksize, emufxrchan_setblocksize),
1224 	KOBJMETHOD(channel_trigger, emufxrchan_trigger),
1225 	KOBJMETHOD(channel_getptr, emufxrchan_getptr),
1226 	KOBJMETHOD(channel_getcaps, emufxrchan_getcaps),
1227 	KOBJMETHOD(channel_getrates, emufxrchan_getrates),
1228 	KOBJMETHOD_END
1229 };
1230 CHANNEL_DECLARE(emufxrchan);
1231 
1232 
1233 static uint32_t
1234 emu_pcm_intr(void *pcm, uint32_t stat)
1235 {
1236 	struct emu_pcm_info *sc = (struct emu_pcm_info *)pcm;
1237 	uint32_t ack;
1238 	int i;
1239 
1240 	ack = 0;
1241 
1242 	snd_mtxlock(sc->lock);
1243 
1244 	if (stat & EMU_IPR_INTERVALTIMER) {
1245 		ack |= EMU_IPR_INTERVALTIMER;
1246 		for (i = 0; i < MAX_CHANNELS; i++)
1247 			if (sc->pch[i].channel) {
1248 				if (sc->pch[i].run == 1) {
1249 					snd_mtxunlock(sc->lock);
1250 					chn_intr(sc->pch[i].channel);
1251 					snd_mtxlock(sc->lock);
1252 				} else
1253 					emu_timer_enable(sc->card, sc->pch[i].timer, 0);
1254 			}
1255 		/* ADC may install timer to get low-latency interrupts */
1256 		if ((sc->rch_adc.channel) && (sc->rch_adc.run)) {
1257 			snd_mtxunlock(sc->lock);
1258 			chn_intr(sc->rch_adc.channel);
1259 			snd_mtxlock(sc->lock);
1260 		}
1261 		/*
1262 		 * EFX does not use timer, because it will fill
1263 		 * buffer at least 32x times faster than ADC.
1264 		 */
1265 	}
1266 
1267 
1268 	if (stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL)) {
1269 		ack |= stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL);
1270 		if (sc->rch_adc.channel) {
1271 			snd_mtxunlock(sc->lock);
1272 			chn_intr(sc->rch_adc.channel);
1273 			snd_mtxlock(sc->lock);
1274 		}
1275 	}
1276 
1277 	if (stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL)) {
1278 		ack |= stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL);
1279 		if (sc->rch_efx.channel) {
1280 			snd_mtxunlock(sc->lock);
1281 			chn_intr(sc->rch_efx.channel);
1282 			snd_mtxlock(sc->lock);
1283 		}
1284 	}
1285 	snd_mtxunlock(sc->lock);
1286 
1287 	return (ack);
1288 }
1289 
1290 static int
1291 emu_pcm_init(struct emu_pcm_info *sc)
1292 {
1293 	sc->bufsz = pcm_getbuffersize(sc->dev, EMUPAGESIZE, EMU_REC_BUFSZ, EMU_MAX_BUFSZ);
1294 	return (0);
1295 }
1296 
1297 static int
1298 emu_pcm_uninit(struct emu_pcm_info *sc __unused)
1299 {
1300 	return (0);
1301 }
1302 
1303 static int
1304 emu_pcm_probe(device_t dev)
1305 {
1306 	uintptr_t func, route, r;
1307 	const char *rt;
1308 	char buffer[255];
1309 
1310 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_FUNC, &func);
1311 
1312 	if (func != SCF_PCM)
1313 		return (ENXIO);
1314 
1315 	rt = "UNKNOWN";
1316 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ROUTE, &route);
1317 	switch (route) {
1318 	case RT_FRONT:
1319 		rt = "front";
1320 		break;
1321 	case RT_REAR:
1322 		rt = "rear";
1323 		break;
1324 	case RT_CENTER:
1325 		rt = "center";
1326 		break;
1327 	case RT_SUB:
1328 		rt = "subwoofer";
1329 		break;
1330 	case RT_SIDE:
1331 		rt = "side";
1332 		break;
1333 	case RT_MCHRECORD:
1334 		rt = "multichannel recording";
1335 		break;
1336 	}
1337 
1338 	snprintf(buffer, 255, "EMU10Kx DSP %s PCM interface", rt);
1339 	device_set_desc_copy(dev, buffer);
1340 	return (0);
1341 }
1342 
1343 static int
1344 emu_pcm_attach(device_t dev)
1345 {
1346 	struct emu_pcm_info *sc;
1347 	unsigned int i;
1348 	char status[SND_STATUSLEN];
1349 	uint32_t inte, ipr;
1350 	uintptr_t route, r, ivar;
1351 
1352 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
1353 	sc->card = (struct emu_sc_info *)(device_get_softc(device_get_parent(dev)));
1354 	if (sc->card == NULL) {
1355 		device_printf(dev, "cannot get bridge conf\n");
1356 		free(sc, M_DEVBUF);
1357 		return (ENXIO);
1358 	}
1359 
1360 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_emu10kx pcm softc");
1361 	sc->dev = dev;
1362 
1363 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &ivar);
1364 	sc->is_emu10k1 = ivar ? 1 : 0;
1365 
1366 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_MCH_DISABLED, &ivar);
1367 	sc->mch_disabled = ivar ? 1 : 0;
1368 
1369 	sc->codec = NULL;
1370 
1371 	for (i = 0; i < 8; i++) {
1372 		sc->rt.routing_left[i] = i;
1373 		sc->rt.amounts_left[i] = 0x00;
1374 		sc->rt.routing_right[i] = i;
1375 		sc->rt.amounts_right[i] = 0x00;
1376 	}
1377 
1378 	for (i = 0; i < 8; i++) {
1379 		sc->rt_mono.routing_left[i] = i;
1380 		sc->rt_mono.amounts_left[i] = 0x00;
1381 		sc->rt_mono.routing_right[i] = i;
1382 		sc->rt_mono.amounts_right[i] = 0x00;
1383 	}
1384 
1385 	sc->emu10k1_volcache[0][0] = 75;
1386 	sc->emu10k1_volcache[1][0] = 75;
1387 	sc->emu10k1_volcache[0][1] = 75;
1388 	sc->emu10k1_volcache[1][1] = 75;
1389 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ROUTE, &route);
1390 	sc->route = route;
1391 	switch (route) {
1392 	case RT_FRONT:
1393 		sc->rt.amounts_left[0] = 0xff;
1394 		sc->rt.amounts_right[1] = 0xff;
1395 		sc->rt_mono.amounts_left[0] = 0xff;
1396 		sc->rt_mono.amounts_left[1] = 0xff;
1397 		if (sc->is_emu10k1)
1398 			sc->codec = AC97_CREATE(dev, sc, emu_ac97);
1399 		else
1400 			sc->codec = AC97_CREATE(dev, sc, emu_eac97);
1401 		sc->ac97_mixerclass = NULL;
1402 		if (sc->codec != NULL)
1403 			sc->ac97_mixerclass = ac97_getmixerclass();
1404 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1405 			device_printf(dev, "failed to initialize DSP mixer\n");
1406 			goto bad;
1407 		}
1408 		break;
1409 	case RT_REAR:
1410 		sc->rt.amounts_left[2] = 0xff;
1411 		sc->rt.amounts_right[3] = 0xff;
1412 		sc->rt_mono.amounts_left[2] = 0xff;
1413 		sc->rt_mono.amounts_left[3] = 0xff;
1414 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1415 			device_printf(dev, "failed to initialize mixer\n");
1416 			goto bad;
1417 		}
1418 		break;
1419 	case RT_CENTER:
1420 		sc->rt.amounts_left[4] = 0xff;
1421 		sc->rt_mono.amounts_left[4] = 0xff;
1422 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1423 			device_printf(dev, "failed to initialize mixer\n");
1424 			goto bad;
1425 		}
1426 		break;
1427 	case RT_SUB:
1428 		sc->rt.amounts_left[5] = 0xff;
1429 		sc->rt_mono.amounts_left[5] = 0xff;
1430 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1431 			device_printf(dev, "failed to initialize mixer\n");
1432 			goto bad;
1433 		}
1434 		break;
1435 	case RT_SIDE:
1436 		sc->rt.amounts_left[6] = 0xff;
1437 		sc->rt.amounts_right[7] = 0xff;
1438 		sc->rt_mono.amounts_left[6] = 0xff;
1439 		sc->rt_mono.amounts_left[7] = 0xff;
1440 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1441 			device_printf(dev, "failed to initialize mixer\n");
1442 			goto bad;
1443 		}
1444 		break;
1445 	case RT_MCHRECORD:
1446 		if (mixer_init(dev, &emuefxmixer_class, sc)) {
1447 			device_printf(dev, "failed to initialize EFX mixer\n");
1448 			goto bad;
1449 		}
1450 		break;
1451 	default:
1452 		device_printf(dev, "invalid default route\n");
1453 		goto bad;
1454 	}
1455 
1456 	inte = EMU_INTE_INTERTIMERENB;
1457 	ipr = EMU_IPR_INTERVALTIMER; /* Used by playback & ADC */
1458 	sc->ihandle = emu_intr_register(sc->card, inte, ipr, &emu_pcm_intr, sc);
1459 
1460 	if (emu_pcm_init(sc) == -1) {
1461 		device_printf(dev, "unable to initialize PCM part of the card\n");
1462 		goto bad;
1463 	}
1464 
1465 	/*
1466 	 * We don't register interrupt handler with snd_setup_intr
1467 	 * in pcm device. Mark pcm device as MPSAFE manually.
1468 	 */
1469 	pcm_setflags(dev, pcm_getflags(dev) | SD_F_MPSAFE);
1470 
1471 	/* XXX we should better get number of available channels from parent */
1472 	if (pcm_register(dev, sc, (route == RT_FRONT) ? MAX_CHANNELS : 1, (route == RT_FRONT) ? 1 : 0)) {
1473 		device_printf(dev, "can't register PCM channels!\n");
1474 		goto bad;
1475 	}
1476 	sc->pnum = 0;
1477 	if (route != RT_MCHRECORD)
1478 		pcm_addchan(dev, PCMDIR_PLAY, &emupchan_class, sc);
1479 	if (route == RT_FRONT) {
1480 		for (i = 1; i < MAX_CHANNELS; i++)
1481 			pcm_addchan(dev, PCMDIR_PLAY, &emupchan_class, sc);
1482 		pcm_addchan(dev, PCMDIR_REC, &emurchan_class, sc);
1483 	}
1484 	if (route == RT_MCHRECORD)
1485 		pcm_addchan(dev, PCMDIR_REC, &emufxrchan_class, sc);
1486 
1487 	snprintf(status, SND_STATUSLEN, "on %s", device_get_nameunit(device_get_parent(dev)));
1488 	pcm_setstatus(dev, status);
1489 
1490 	return (0);
1491 
1492 bad:
1493 	if (sc->codec)
1494 		ac97_destroy(sc->codec);
1495 	if (sc->lock)
1496 		snd_mtxfree(sc->lock);
1497 	free(sc, M_DEVBUF);
1498 	return (ENXIO);
1499 }
1500 
1501 static int
1502 emu_pcm_detach(device_t dev)
1503 {
1504 	int r;
1505 	struct emu_pcm_info *sc;
1506 
1507 	sc = pcm_getdevinfo(dev);
1508 
1509 	r = pcm_unregister(dev);
1510 
1511 	if (r) 	return (r);
1512 
1513 	emu_pcm_uninit(sc);
1514 
1515 	if (sc->lock)
1516 		snd_mtxfree(sc->lock);
1517 	free(sc, M_DEVBUF);
1518 
1519 	return (0);
1520 }
1521 
1522 static device_method_t emu_pcm_methods[] = {
1523 	DEVMETHOD(device_probe, emu_pcm_probe),
1524 	DEVMETHOD(device_attach, emu_pcm_attach),
1525 	DEVMETHOD(device_detach, emu_pcm_detach),
1526 
1527 	DEVMETHOD_END
1528 };
1529 
1530 static driver_t emu_pcm_driver = {
1531 	"pcm",
1532 	emu_pcm_methods,
1533 	PCM_SOFTC_SIZE,
1534 	NULL,
1535 	0,
1536 	NULL
1537 };
1538 DRIVER_MODULE(snd_emu10kx_pcm, emu10kx, emu_pcm_driver, pcm_devclass, 0, 0);
1539 MODULE_DEPEND(snd_emu10kx_pcm, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER);
1540 MODULE_DEPEND(snd_emu10kx_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1541 MODULE_VERSION(snd_emu10kx_pcm, SND_EMU10KX_PREFVER);
1542