xref: /freebsd/sys/dev/sound/pci/emu10kx-pcm.c (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
1 /*-
2  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
3  * Copyright (c) 2003-2007 Yuriy Tsibizov <yuriy.tsibizov@gfk.ru>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #include <sys/param.h>
31 #include <sys/types.h>
32 #include <sys/bus.h>
33 #include <machine/bus.h>
34 #include <sys/rman.h>
35 #include <sys/systm.h>
36 #include <sys/sbuf.h>
37 #include <sys/queue.h>
38 #include <sys/systm.h>
39 #include <sys/lock.h>
40 #include <sys/mutex.h>
41 
42 #ifdef HAVE_KERNEL_OPTION_HEADERS
43 #include "opt_snd.h"
44 #endif
45 
46 #include <dev/sound/chip.h>
47 #include <dev/sound/pcm/sound.h>
48 #include <dev/sound/pcm/ac97.h>
49 
50 #include "mixer_if.h"
51 
52 #include <dev/sound/pci/emuxkireg.h>
53 #include <dev/sound/pci/emu10kx.h>
54 
55 struct emu_pcm_pchinfo {
56 	int		spd;
57 	int		fmt;
58 	unsigned int	blksz;
59 	int		run;
60 	struct emu_voice *master;
61 	struct emu_voice *slave;
62 	struct snd_dbuf	*buffer;
63 	struct pcm_channel *channel;
64 	struct emu_pcm_info *pcm;
65 	int		timer;
66 };
67 
68 struct emu_pcm_rchinfo {
69 	int		spd;
70 	int		fmt;
71 	unsigned int	blksz;
72 	int		run;
73 	uint32_t 	idxreg;
74 	uint32_t	basereg;
75 	uint32_t	sizereg;
76 	uint32_t	setupreg;
77 	uint32_t	irqmask;
78 	uint32_t	iprmask;
79 	int 		ihandle;
80 	struct snd_dbuf	*buffer;
81 	struct pcm_channel *channel;
82 	struct emu_pcm_info *pcm;
83 	int		timer;
84 };
85 
86 /* XXX Hardware playback channels */
87 #define	MAX_CHANNELS	4
88 
89 #if MAX_CHANNELS > 13
90 #error	Too many hardware channels defined. 13 is the maximum
91 #endif
92 
93 struct emu_pcm_info {
94 	struct mtx		*lock;
95 	device_t		dev;		/* device information */
96 	struct emu_sc_info 	*card;
97 	struct emu_pcm_pchinfo	pch[MAX_CHANNELS];	/* hardware channels */
98 	int			pnum;		/* next free channel number */
99 	struct emu_pcm_rchinfo	rch_adc;
100 	struct emu_pcm_rchinfo	rch_efx;
101 	struct emu_route	rt;
102 	struct emu_route	rt_mono;
103 	int			route;
104 	int			ihandle;	/* interrupt handler */
105 	unsigned int		bufsz;
106 	int			is_emu10k1;
107 	struct ac97_info	*codec;
108 	uint32_t 		ac97_state[0x7F];
109 	kobj_class_t		ac97_mixerclass;
110 	uint32_t		ac97_recdevs;
111 	uint32_t		ac97_playdevs;
112 	struct snd_mixer	*sm;
113 	int			mch_disabled;
114 	unsigned int		emu10k1_volcache[2][2];
115 };
116 
117 
118 static uint32_t emu_rfmt_adc[] = {
119 	SND_FORMAT(AFMT_S16_LE, 1, 0),
120 	SND_FORMAT(AFMT_S16_LE, 2, 0),
121 	0
122 };
123 static struct pcmchan_caps emu_reccaps_adc = {
124 	8000, 48000, emu_rfmt_adc, 0
125 };
126 
127 static uint32_t emu_rfmt_efx[] = {
128 	SND_FORMAT(AFMT_S16_LE, 1, 0),
129 	0
130 };
131 
132 static struct pcmchan_caps emu_reccaps_efx_live = {
133 	48000*32, 48000*32, emu_rfmt_efx, 0
134 };
135 
136 static struct pcmchan_caps emu_reccaps_efx_audigy = {
137 	48000*64, 48000*64, emu_rfmt_efx, 0
138 };
139 
140 static int emu_rates_live[] = {
141 	48000*32
142 };
143 
144 static int emu_rates_audigy[] = {
145 	48000*64
146 };
147 
148 static uint32_t emu_pfmt[] = {
149 	SND_FORMAT(AFMT_U8, 1, 0),
150 	SND_FORMAT(AFMT_U8, 2, 0),
151 	SND_FORMAT(AFMT_S16_LE, 1, 0),
152 	SND_FORMAT(AFMT_S16_LE, 2, 0),
153 	0
154 };
155 static uint32_t emu_pfmt_mono[] = {
156 	SND_FORMAT(AFMT_U8, 1, 0),
157 	SND_FORMAT(AFMT_S16_LE, 1, 0),
158 	0
159 };
160 
161 static struct pcmchan_caps emu_playcaps = {4000, 48000, emu_pfmt, 0};
162 static struct pcmchan_caps emu_playcaps_mono = {4000, 48000, emu_pfmt_mono, 0};
163 
164 static int emu10k1_adcspeed[8] = {48000, 44100, 32000, 24000, 22050, 16000, 11025, 8000};
165 /* audigy supports 12kHz. */
166 static int emu10k2_adcspeed[9] = {48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000};
167 
168 static uint32_t emu_pcm_intr(void *pcm, uint32_t stat);
169 
170 static const struct emu_dspmix_props_k1 {
171 	uint8_t	present;
172 	uint8_t	recdev;
173 	int8_t	input;
174 } dspmix_k1 [SOUND_MIXER_NRDEVICES] = {
175 	/* no mixer device for ac97 */		/* in0 AC97 */
176 	[SOUND_MIXER_DIGITAL1] = {1, 1, 1},	/* in1 CD SPDIF */
177 	/* not connected */			/* in2 (zoom) */
178 	[SOUND_MIXER_DIGITAL2] = {1, 1, 3},	/* in3 toslink */
179 	[SOUND_MIXER_LINE2] =    {1, 1, 4},	/* in4 Line-In2 */
180 	[SOUND_MIXER_DIGITAL3] = {1, 1, 5},	/* in5 on-card  SPDIF */
181 	[SOUND_MIXER_LINE3] =    {1, 1, 6},	/* in6 AUX2 */
182 	/* not connected */			/* in7 */
183 };
184 static const struct emu_dspmix_props_k2 {
185 	uint8_t	present;
186 	uint8_t	recdev;
187 	int8_t	input;
188 } dspmix_k2 [SOUND_MIXER_NRDEVICES] = {
189 	[SOUND_MIXER_VOLUME] =	{1, 0, (-1)},
190 	[SOUND_MIXER_PCM] =	{1, 0, (-1)},
191 
192 	/* no mixer device */			/* in0 AC97 */
193 	[SOUND_MIXER_DIGITAL1] = {1, 1, 1},	/* in1 CD SPDIF */
194 	[SOUND_MIXER_DIGITAL2] = {1, 1, 2},	/* in2 COAX SPDIF */
195 	/* not connected */			/* in3 */
196 	[SOUND_MIXER_LINE2] =    {1, 1, 4},	/* in4 Line-In2 */
197 	[SOUND_MIXER_DIGITAL3] = {1, 1, 5},	/* in5 on-card  SPDIF */
198 	[SOUND_MIXER_LINE3] =    {1, 1, 6},	/* in6 AUX2 */
199 	/* not connected */			/* in7 */
200 };
201 
202 static int
203 emu_dspmixer_init(struct snd_mixer *m)
204 {
205 	struct emu_pcm_info	*sc;
206 	int i;
207 	int p, r;
208 
209 	p = 0;
210 	r = 0;
211 
212 	sc = mix_getdevinfo(m);
213 
214 	if (sc->route == RT_FRONT) {
215 		/* create submixer for AC97 codec */
216 		if ((sc->ac97_mixerclass != NULL) && (sc->codec != NULL)) {
217 			sc->sm = mixer_create(sc->dev, sc->ac97_mixerclass, sc->codec, "ac97");
218 			if (sc->sm != NULL) {
219 				p = mix_getdevs(sc->sm);
220 				r = mix_getrecdevs(sc->sm);
221 			}
222 		}
223 
224 		sc->ac97_playdevs = p;
225 		sc->ac97_recdevs = r;
226 	}
227 
228 	/* This two are always here */
229 	p |= (1 << SOUND_MIXER_PCM);
230 	p |= (1 << SOUND_MIXER_VOLUME);
231 
232 	if (sc->route == RT_FRONT) {
233 		if (sc->is_emu10k1) {
234 			for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
235 				if (dspmix_k1[i].present)
236 					p |= (1 << i);
237 				if (dspmix_k1[i].recdev)
238 					r |= (1 << i);
239 			}
240 		} else {
241 			for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
242 				if (dspmix_k2[i].present)
243 					p |= (1 << i);
244 				if (dspmix_k2[i].recdev)
245 					r |= (1 << i);
246 			}
247 		}
248 	}
249 
250 	mix_setdevs(m, p);
251 	mix_setrecdevs(m, r);
252 
253 	return (0);
254 }
255 
256 static int
257 emu_dspmixer_uninit(struct snd_mixer *m)
258 {
259 	struct emu_pcm_info	*sc;
260 	int err = 0;
261 
262 	/* drop submixer for AC97 codec */
263 	sc = mix_getdevinfo(m);
264 	if (sc->sm != NULL)
265 		err = mixer_delete(sc->sm);
266 		if (err)
267 			return (err);
268 		sc->sm = NULL;
269 	return (0);
270 }
271 
272 static int
273 emu_dspmixer_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
274 {
275 	struct emu_pcm_info *sc;
276 
277 	sc = mix_getdevinfo(m);
278 
279 	switch (dev) {
280 	case SOUND_MIXER_VOLUME:
281 		switch (sc->route) {
282 		case RT_FRONT:
283 			if (sc->sm != NULL)
284 				mix_set(sc->sm, dev, left, right);
285 			if (sc->mch_disabled) {
286 				/* In emu10k1 case PCM volume does not affect
287 				   sound routed to rear & center/sub (it is connected
288 				   to AC97 codec). Calculate it manually. */
289 				/* This really should belong to emu10kx.c */
290 				if (sc->is_emu10k1) {
291 					sc->emu10k1_volcache[0][0] = left;
292 					left = left * sc->emu10k1_volcache[1][0] / 100;
293 					sc->emu10k1_volcache[0][1] = right;
294 					right = right * sc->emu10k1_volcache[1][1] / 100;
295 				}
296 
297 				emumix_set_volume(sc->card, M_MASTER_REAR_L, left);
298 				emumix_set_volume(sc->card, M_MASTER_REAR_R, right);
299 				if (!sc->is_emu10k1) {
300 					emumix_set_volume(sc->card, M_MASTER_CENTER, (left+right)/2);
301 					emumix_set_volume(sc->card, M_MASTER_SUBWOOFER, (left+right)/2);
302 					/* XXX side */
303 				}
304 			} /* mch disabled */
305 			break;
306 		case RT_REAR:
307 			emumix_set_volume(sc->card, M_MASTER_REAR_L, left);
308 			emumix_set_volume(sc->card, M_MASTER_REAR_R, right);
309 			break;
310 		case RT_CENTER:
311 			emumix_set_volume(sc->card, M_MASTER_CENTER, (left+right)/2);
312 			break;
313 		case RT_SUB:
314 			emumix_set_volume(sc->card, M_MASTER_SUBWOOFER, (left+right)/2);
315 			break;
316 		}
317 		break;
318 	case SOUND_MIXER_PCM:
319 		switch (sc->route) {
320 		case RT_FRONT:
321 			if (sc->sm != NULL)
322 				mix_set(sc->sm, dev, left, right);
323 			if (sc->mch_disabled) {
324 				/* See SOUND_MIXER_VOLUME case */
325 				if (sc->is_emu10k1) {
326 					sc->emu10k1_volcache[1][0] = left;
327 					left = left * sc->emu10k1_volcache[0][0] / 100;
328 					sc->emu10k1_volcache[1][1] = right;
329 					right = right * sc->emu10k1_volcache[0][1] / 100;
330 				}
331 				emumix_set_volume(sc->card, M_MASTER_REAR_L, left);
332 				emumix_set_volume(sc->card, M_MASTER_REAR_R, right);
333 
334 				if (!sc->is_emu10k1) {
335 					emumix_set_volume(sc->card, M_MASTER_CENTER, (left+right)/2);
336 					emumix_set_volume(sc->card, M_MASTER_SUBWOOFER, (left+right)/2);
337 					/* XXX side */
338 				}
339 			} /* mch_disabled */
340 			break;
341 		case RT_REAR:
342 			emumix_set_volume(sc->card, M_FX2_REAR_L, left);
343 			emumix_set_volume(sc->card, M_FX3_REAR_R, right);
344 			break;
345 		case RT_CENTER:
346 			emumix_set_volume(sc->card, M_FX4_CENTER, (left+right)/2);
347 			break;
348 		case RT_SUB:
349 			emumix_set_volume(sc->card, M_FX5_SUBWOOFER, (left+right)/2);
350 			break;
351 		}
352 		break;
353 	case SOUND_MIXER_DIGITAL1:	/* CD SPDIF, in1 */
354 			emumix_set_volume(sc->card, M_IN1_FRONT_L, left);
355 			emumix_set_volume(sc->card, M_IN1_FRONT_R, right);
356 		break;
357 	case SOUND_MIXER_DIGITAL2:
358 			if (sc->is_emu10k1) {
359 				/* TOSLink, in3 */
360 				emumix_set_volume(sc->card, M_IN3_FRONT_L, left);
361 				emumix_set_volume(sc->card, M_IN3_FRONT_R, right);
362 			} else {
363 				/* COAX SPDIF, in2 */
364 				emumix_set_volume(sc->card, M_IN2_FRONT_L, left);
365 				emumix_set_volume(sc->card, M_IN2_FRONT_R, right);
366 			}
367 		break;
368 	case SOUND_MIXER_LINE2:		/* Line-In2, in4 */
369 			emumix_set_volume(sc->card, M_IN4_FRONT_L, left);
370 			emumix_set_volume(sc->card, M_IN4_FRONT_R, right);
371 		break;
372 	case SOUND_MIXER_DIGITAL3:	/* on-card SPDIF, in5 */
373 			emumix_set_volume(sc->card, M_IN5_FRONT_L, left);
374 			emumix_set_volume(sc->card, M_IN5_FRONT_R, right);
375 		break;
376 	case SOUND_MIXER_LINE3:		/* AUX2, in6 */
377 			emumix_set_volume(sc->card, M_IN6_FRONT_L, left);
378 			emumix_set_volume(sc->card, M_IN6_FRONT_R, right);
379 		break;
380 	default:
381 		if (sc->sm != NULL) {
382 			/* XXX emumix_set_volume is not required here */
383 			emumix_set_volume(sc->card, M_IN0_FRONT_L, 100);
384 			emumix_set_volume(sc->card, M_IN0_FRONT_R, 100);
385 			mix_set(sc->sm, dev, left, right);
386 		} else
387 			device_printf(sc->dev, "mixer error: unknown device %d\n", dev);
388 	}
389 	return  (0);
390 }
391 
392 static u_int32_t
393 emu_dspmixer_setrecsrc(struct snd_mixer *m, u_int32_t src)
394 {
395 	struct emu_pcm_info *sc;
396 	int i;
397 	u_int32_t recmask;
398 	int	input[8];
399 
400 	sc = mix_getdevinfo(m);
401 	recmask = 0;
402 	for (i=0; i < 8; i++)
403 		input[i]=0;
404 
405 	if (sc->sm != NULL)
406 		if ((src & sc->ac97_recdevs) !=0)
407 			if (mix_setrecsrc(sc->sm, src & sc->ac97_recdevs) == 0) {
408 				recmask |= (src & sc->ac97_recdevs);
409 				/* Recording from AC97 codec.
410 				   Enable AC97 route to rec on DSP */
411 				input[0] = 1;
412 			}
413 	if (sc->is_emu10k1) {
414 		for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
415 			if (dspmix_k1[i].recdev)
416 				if ((src & (1 << i)) == ((uint32_t)1 << i)) {
417 				recmask |= (1 << i);
418 				/* enable device i */
419 				input[dspmix_k1[i].input] = 1;
420 				}
421 		}
422 	} else {
423 		for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
424 			if (dspmix_k2[i].recdev)
425 				if ((src & (1 << i)) == ((uint32_t)1 << i)) {
426 				recmask |= (1 << i);
427 				/* enable device i */
428 				input[dspmix_k2[i].input] = 1;
429 				}
430 		}
431 	}
432 	emumix_set_volume(sc->card, M_IN0_REC_L, input[0] == 1 ? 100 : 0);
433 	emumix_set_volume(sc->card, M_IN0_REC_R, input[0] == 1 ? 100 : 0);
434 
435 	emumix_set_volume(sc->card, M_IN1_REC_L, input[1] == 1 ? 100 : 0);
436 	emumix_set_volume(sc->card, M_IN1_REC_R, input[1] == 1 ? 100 : 0);
437 
438 	if (!sc->is_emu10k1) {
439 		emumix_set_volume(sc->card, M_IN2_REC_L, input[2] == 1 ? 100 : 0);
440 		emumix_set_volume(sc->card, M_IN2_REC_R, input[2] == 1 ? 100 : 0);
441 	}
442 
443 	if (sc->is_emu10k1) {
444 		emumix_set_volume(sc->card, M_IN3_REC_L, input[3] == 1 ? 100 : 0);
445 		emumix_set_volume(sc->card, M_IN3_REC_R, input[3] == 1 ? 100 : 0);
446 	}
447 
448 	emumix_set_volume(sc->card, M_IN4_REC_L, input[4] == 1 ? 100 : 0);
449 	emumix_set_volume(sc->card, M_IN4_REC_R, input[4] == 1 ? 100 : 0);
450 
451 	emumix_set_volume(sc->card, M_IN5_REC_L, input[5] == 1 ? 100 : 0);
452 	emumix_set_volume(sc->card, M_IN5_REC_R, input[5] == 1 ? 100 : 0);
453 
454 	emumix_set_volume(sc->card, M_IN6_REC_L, input[6] == 1 ? 100 : 0);
455 	emumix_set_volume(sc->card, M_IN6_REC_R, input[6] == 1 ? 100 : 0);
456 
457 	/* XXX check for K1/k2 differences? */
458 	if ((src & (1 << SOUND_MIXER_PCM)) == (1 << SOUND_MIXER_PCM)) {
459 		emumix_set_volume(sc->card, M_FX0_REC_L, emumix_get_volume(sc->card, M_FX0_FRONT_L));
460 		emumix_set_volume(sc->card, M_FX1_REC_R, emumix_get_volume(sc->card, M_FX1_FRONT_R));
461 	} else {
462 		emumix_set_volume(sc->card, M_FX0_REC_L, 0);
463 		emumix_set_volume(sc->card, M_FX1_REC_R, 0);
464 	}
465 
466 	return (recmask);
467 }
468 
469 static kobj_method_t emudspmixer_methods[] = {
470 	KOBJMETHOD(mixer_init,		emu_dspmixer_init),
471 	KOBJMETHOD(mixer_uninit,	emu_dspmixer_uninit),
472 	KOBJMETHOD(mixer_set,		emu_dspmixer_set),
473 	KOBJMETHOD(mixer_setrecsrc,	emu_dspmixer_setrecsrc),
474 	KOBJMETHOD_END
475 };
476 MIXER_DECLARE(emudspmixer);
477 
478 static int
479 emu_efxmixer_init(struct snd_mixer *m)
480 {
481 	mix_setdevs(m, SOUND_MASK_VOLUME);
482 	mix_setrecdevs(m, SOUND_MASK_MONITOR);
483 	return (0);
484 }
485 
486 static int
487 emu_efxmixer_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
488 {
489 	if (left + right == 200) return (0);
490 	return  (0);
491 }
492 
493 static u_int32_t
494 emu_efxmixer_setrecsrc(struct snd_mixer *m __unused, u_int32_t src __unused)
495 {
496 	return (SOUND_MASK_MONITOR);
497 }
498 
499 static kobj_method_t emuefxmixer_methods[] = {
500 	KOBJMETHOD(mixer_init,		emu_efxmixer_init),
501 	KOBJMETHOD(mixer_set,		emu_efxmixer_set),
502 	KOBJMETHOD(mixer_setrecsrc,	emu_efxmixer_setrecsrc),
503 	KOBJMETHOD_END
504 };
505 MIXER_DECLARE(emuefxmixer);
506 
507 /*
508  * AC97 emulation code for Audigy and later cards.
509  * Some parts of AC97 codec are not used by hardware, but can be used
510  * to change some DSP controls via AC97 mixer interface. This includes:
511  * - master volume controls MASTER_FRONT_[R|L]
512  * - pcm volume controls FX[0|1]_FRONT_[R|L]
513  * - rec volume controls MASTER_REC_[R|L]
514  * We do it because we need to put it under user control....
515  * We also keep some parts of AC97 disabled to get better sound quality
516  */
517 
518 #define	AC97LEFT(x)	((x & 0x7F00)>>8)
519 #define	AC97RIGHT(x)	(x & 0x007F)
520 #define	AC97MUTE(x)	((x & 0x8000)>>15)
521 #define	BIT4_TO100(x)	(100-(x)*100/(0x0f))
522 #define	BIT6_TO100(x)	(100-(x)*100/(0x3f))
523 #define	BIT4_TO255(x)	(255-(x)*255/(0x0f))
524 #define	BIT6_TO255(x)	(255-(x)*255/(0x3f))
525 #define	V100_TOBIT6(x)	(0x3f*(100-x)/100)
526 #define	V100_TOBIT4(x)	(0x0f*(100-x)/100)
527 #define	AC97ENCODE(x_muted, x_left, x_right)	(((x_muted & 1)<<15) | ((x_left & 0x3f)<<8) | (x_right & 0x3f))
528 
529 static int
530 emu_ac97_read_emulation(struct emu_pcm_info *sc, int regno)
531 {
532 	int use_ac97;
533 	int emulated;
534 	int tmp;
535 
536 	use_ac97 = 1;
537 	emulated = 0;
538 
539 	switch (regno) {
540 	case AC97_MIX_MASTER:
541 		emulated = sc->ac97_state[AC97_MIX_MASTER];
542 		use_ac97 = 0;
543 		break;
544 	case AC97_MIX_PCM:
545 		emulated = sc->ac97_state[AC97_MIX_PCM];
546 		use_ac97 = 0;
547 		break;
548 	case AC97_REG_RECSEL:
549 		emulated = 0x0505;
550 		use_ac97 = 0;
551 		break;
552 	case AC97_MIX_RGAIN:
553 		emulated = sc->ac97_state[AC97_MIX_RGAIN];
554 		use_ac97 = 0;
555 		break;
556 	}
557 
558 	emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
559 	tmp = emu_rd(sc->card, EMU_AC97DATA, 2);
560 
561 	if (use_ac97)
562 		emulated = tmp;
563 
564 	return (emulated);
565 }
566 
567 static void
568 emu_ac97_write_emulation(struct emu_pcm_info *sc, int regno, uint32_t data)
569 {
570 	int write_ac97;
571 	int left, right;
572 	uint32_t emu_left, emu_right;
573 	int is_mute;
574 
575 	write_ac97 = 1;
576 
577 	left = AC97LEFT(data);
578 	emu_left = BIT6_TO100(left);	/* We show us as 6-bit AC97 mixer */
579 	right = AC97RIGHT(data);
580 	emu_right = BIT6_TO100(right);
581 	is_mute = AC97MUTE(data);
582 	if (is_mute)
583 		emu_left = emu_right = 0;
584 
585 	switch (regno) {
586 		/* TODO: reset emulator on AC97_RESET */
587 	case AC97_MIX_MASTER:
588 		emumix_set_volume(sc->card, M_MASTER_FRONT_L, emu_left);
589 		emumix_set_volume(sc->card, M_MASTER_FRONT_R, emu_right);
590 		sc->ac97_state[AC97_MIX_MASTER] = data & (0x8000 | 0x3f3f);
591 		data = 0x8000;	/* Mute AC97 main out */
592 		break;
593 	case AC97_MIX_PCM:	/* PCM OUT VOL */
594 		emumix_set_volume(sc->card, M_FX0_FRONT_L, emu_left);
595 		emumix_set_volume(sc->card, M_FX1_FRONT_R, emu_right);
596 		sc->ac97_state[AC97_MIX_PCM] = data & (0x8000 | 0x3f3f);
597 		data = 0x8000;	/* Mute AC97 PCM out */
598 		break;
599 	case AC97_REG_RECSEL:
600 		/*
601 		 * PCM recording source is set to "stereo mix" (labeled "vol"
602 		 * in mixer). There is no 'playback' from AC97 codec -
603 		 * if you want to hear anything from AC97 you have to _record_
604 		 * it. Keep things simple and record "stereo mix".
605 		 */
606 		data = 0x0505;
607 		break;
608 	case AC97_MIX_RGAIN:	/* RECORD GAIN */
609 		emu_left = BIT4_TO100(left);	/* rgain is 4-bit */
610 		emu_right = BIT4_TO100(right);
611 		emumix_set_volume(sc->card, M_MASTER_REC_L, 100-emu_left);
612 		emumix_set_volume(sc->card, M_MASTER_REC_R, 100-emu_right);
613 		/*
614 		 * Record gain on AC97 should stay zero to get AC97 sound on
615 		 * AC97_[RL] connectors on EMU10K2 chip. AC97 on Audigy is not
616 		 * directly connected to any output, only to EMU10K2 chip Use
617 		 * this control to set AC97 mix volume inside EMU10K2 chip
618 		 */
619 		sc->ac97_state[AC97_MIX_RGAIN] = data & (0x8000 | 0x0f0f);
620 		data = 0x0000;
621 		break;
622 	}
623 	if (write_ac97) {
624 		emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
625 		emu_wr(sc->card, EMU_AC97DATA, data, 2);
626 	}
627 }
628 
629 static int
630 emu_erdcd(kobj_t obj __unused, void *devinfo, int regno)
631 {
632 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
633 
634 	return (emu_ac97_read_emulation(sc, regno));
635 }
636 
637 static int
638 emu_ewrcd(kobj_t obj __unused, void *devinfo, int regno, uint32_t data)
639 {
640 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
641 
642 	emu_ac97_write_emulation(sc, regno, data);
643 	return (0);
644 }
645 
646 static kobj_method_t emu_eac97_methods[] = {
647 	KOBJMETHOD(ac97_read, emu_erdcd),
648 	KOBJMETHOD(ac97_write, emu_ewrcd),
649 	KOBJMETHOD_END
650 };
651 AC97_DECLARE(emu_eac97);
652 
653 /* real ac97 codec */
654 static int
655 emu_rdcd(kobj_t obj __unused, void *devinfo, int regno)
656 {
657 	int rd;
658 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
659 
660 	KASSERT(sc->card != NULL, ("emu_rdcd: no soundcard"));
661 	emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
662 	rd = emu_rd(sc->card, EMU_AC97DATA, 2);
663 	return (rd);
664 }
665 
666 static int
667 emu_wrcd(kobj_t obj __unused, void *devinfo, int regno, uint32_t data)
668 {
669 	struct emu_pcm_info *sc = (struct emu_pcm_info *)devinfo;
670 
671 	KASSERT(sc->card != NULL, ("emu_wrcd: no soundcard"));
672 	emu_wr(sc->card, EMU_AC97ADDR, regno, 1);
673 	emu_wr(sc->card, EMU_AC97DATA, data, 2);
674 	return (0);
675 }
676 
677 static kobj_method_t emu_ac97_methods[] = {
678 	KOBJMETHOD(ac97_read, emu_rdcd),
679 	KOBJMETHOD(ac97_write, emu_wrcd),
680 	KOBJMETHOD_END
681 };
682 AC97_DECLARE(emu_ac97);
683 
684 
685 static int
686 emu_k1_recval(int speed)
687 {
688 	int val;
689 
690 	val = 0;
691 	while ((val < 7) && (speed < emu10k1_adcspeed[val]))
692 		val++;
693 	return (val);
694 }
695 
696 static int
697 emu_k2_recval(int speed)
698 {
699 	int val;
700 
701 	val = 0;
702 	while ((val < 8) && (speed < emu10k2_adcspeed[val]))
703 		val++;
704 	return (val);
705 }
706 
707 static void *
708 emupchan_init(kobj_t obj __unused, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir __unused)
709 {
710 	struct emu_pcm_info *sc = devinfo;
711 	struct emu_pcm_pchinfo *ch;
712 	void *r;
713 
714 	KASSERT(dir == PCMDIR_PLAY, ("emupchan_init: bad direction"));
715 	KASSERT(sc->card != NULL, ("empchan_init: no soundcard"));
716 
717 
718 	if (sc->pnum >= MAX_CHANNELS)
719 		return (NULL);
720 	ch = &(sc->pch[sc->pnum++]);
721 	ch->buffer = b;
722 	ch->pcm = sc;
723 	ch->channel = c;
724 	ch->blksz = sc->bufsz;
725 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
726 	ch->spd = 8000;
727 	ch->master = emu_valloc(sc->card);
728 	/*
729 	 * XXX we have to allocate slave even for mono channel until we
730 	 * fix emu_vfree to handle this case.
731 	 */
732 	ch->slave = emu_valloc(sc->card);
733 	ch->timer = emu_timer_create(sc->card);
734 	r = (emu_vinit(sc->card, ch->master, ch->slave, EMU_PLAY_BUFSZ, ch->buffer)) ? NULL : ch;
735 	return (r);
736 }
737 
738 static int
739 emupchan_free(kobj_t obj __unused, void *c_devinfo)
740 {
741 	struct emu_pcm_pchinfo *ch = c_devinfo;
742 	struct emu_pcm_info *sc = ch->pcm;
743 
744 	emu_timer_clear(sc->card, ch->timer);
745 	if (ch->slave != NULL)
746 		emu_vfree(sc->card, ch->slave);
747 	emu_vfree(sc->card, ch->master);
748 	return (0);
749 }
750 
751 static int
752 emupchan_setformat(kobj_t obj __unused, void *c_devinfo, uint32_t format)
753 {
754 	struct emu_pcm_pchinfo *ch = c_devinfo;
755 
756 	ch->fmt = format;
757 	return (0);
758 }
759 
760 static uint32_t
761 emupchan_setspeed(kobj_t obj __unused, void *c_devinfo, uint32_t speed)
762 {
763 	struct emu_pcm_pchinfo *ch = c_devinfo;
764 
765 	ch->spd = speed;
766 	return (ch->spd);
767 }
768 
769 static uint32_t
770 emupchan_setblocksize(kobj_t obj __unused, void *c_devinfo, uint32_t blocksize)
771 {
772 	struct emu_pcm_pchinfo *ch = c_devinfo;
773 	struct emu_pcm_info *sc = ch->pcm;
774 
775 	if (blocksize > ch->pcm->bufsz)
776 		blocksize = ch->pcm->bufsz;
777 	snd_mtxlock(sc->lock);
778 	ch->blksz = blocksize;
779 	emu_timer_set(sc->card, ch->timer, ch->blksz / sndbuf_getalign(ch->buffer));
780 	snd_mtxunlock(sc->lock);
781 	return (ch->blksz);
782 }
783 
784 static int
785 emupchan_trigger(kobj_t obj __unused, void *c_devinfo, int go)
786 {
787 	struct emu_pcm_pchinfo *ch = c_devinfo;
788 	struct emu_pcm_info *sc = ch->pcm;
789 
790 	if (!PCMTRIG_COMMON(go))
791 		return (0);
792 
793 	snd_mtxlock(sc->lock); /* XXX can we trigger on parallel threads ? */
794 	if (go == PCMTRIG_START) {
795 		emu_vsetup(ch->master, ch->fmt, ch->spd);
796 		if (AFMT_CHANNEL(ch->fmt) > 1)
797 			emu_vroute(sc->card, &(sc->rt), ch->master);
798 		else
799 			emu_vroute(sc->card, &(sc->rt_mono), ch->master);
800 		emu_vwrite(sc->card, ch->master);
801 		emu_timer_set(sc->card, ch->timer, ch->blksz / sndbuf_getalign(ch->buffer));
802 		emu_timer_enable(sc->card, ch->timer, 1);
803 	}
804 	/* PCM interrupt handler will handle PCMTRIG_STOP event */
805 	ch->run = (go == PCMTRIG_START) ? 1 : 0;
806 	emu_vtrigger(sc->card, ch->master, ch->run);
807 	snd_mtxunlock(sc->lock);
808 	return (0);
809 }
810 
811 static uint32_t
812 emupchan_getptr(kobj_t obj __unused, void *c_devinfo)
813 {
814 	struct emu_pcm_pchinfo *ch = c_devinfo;
815 	struct emu_pcm_info *sc = ch->pcm;
816 	int r;
817 
818 	r = emu_vpos(sc->card, ch->master);
819 
820 	return (r);
821 }
822 
823 static struct pcmchan_caps *
824 emupchan_getcaps(kobj_t obj __unused, void *c_devinfo __unused)
825 {
826 	struct emu_pcm_pchinfo *ch = c_devinfo;
827 	struct emu_pcm_info *sc = ch->pcm;
828 
829 	switch (sc->route) {
830 	case RT_FRONT:
831 		/* FALLTHROUGH */
832 	case RT_REAR:
833 		/* FALLTHROUGH */
834 	case RT_SIDE:
835 		return (&emu_playcaps);
836 		break;
837 	case RT_CENTER:
838 		/* FALLTHROUGH */
839 	case RT_SUB:
840 		return (&emu_playcaps_mono);
841 		break;
842 	}
843 	return (NULL);
844 }
845 
846 static kobj_method_t emupchan_methods[] = {
847 	KOBJMETHOD(channel_init, emupchan_init),
848 	KOBJMETHOD(channel_free, emupchan_free),
849 	KOBJMETHOD(channel_setformat, emupchan_setformat),
850 	KOBJMETHOD(channel_setspeed, emupchan_setspeed),
851 	KOBJMETHOD(channel_setblocksize, emupchan_setblocksize),
852 	KOBJMETHOD(channel_trigger, emupchan_trigger),
853 	KOBJMETHOD(channel_getptr, emupchan_getptr),
854 	KOBJMETHOD(channel_getcaps, emupchan_getcaps),
855 	KOBJMETHOD_END
856 };
857 CHANNEL_DECLARE(emupchan);
858 
859 static void *
860 emurchan_init(kobj_t obj __unused, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir __unused)
861 {
862 	struct emu_pcm_info *sc = devinfo;
863 	struct emu_pcm_rchinfo *ch;
864 
865 	KASSERT(dir == PCMDIR_REC, ("emurchan_init: bad direction"));
866 	ch = &sc->rch_adc;
867 	ch->buffer = b;
868 	ch->pcm = sc;
869 	ch->channel = c;
870 	ch->blksz = sc->bufsz / 2; /* We rise interrupt for half-full buffer */
871 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
872 	ch->spd = 8000;
873 	ch->idxreg = sc->is_emu10k1 ? EMU_ADCIDX : EMU_A_ADCIDX;
874 	ch->basereg = EMU_ADCBA;
875 	ch->sizereg = EMU_ADCBS;
876 	ch->setupreg = EMU_ADCCR;
877 	ch->irqmask = EMU_INTE_ADCBUFENABLE;
878 	ch->iprmask = EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL;
879 
880 	if (sndbuf_alloc(ch->buffer, emu_gettag(sc->card), 0, sc->bufsz) != 0)
881 		return (NULL);
882 	else {
883 		ch->timer = emu_timer_create(sc->card);
884 		emu_wrptr(sc->card, 0, ch->basereg, sndbuf_getbufaddr(ch->buffer));
885 		emu_wrptr(sc->card, 0, ch->sizereg, 0);	/* off */
886 		return (ch);
887 	}
888 }
889 
890 static int
891 emurchan_free(kobj_t obj __unused, void *c_devinfo)
892 {
893 	struct emu_pcm_rchinfo *ch = c_devinfo;
894 	struct emu_pcm_info *sc = ch->pcm;
895 
896 	emu_timer_clear(sc->card, ch->timer);
897 	return (0);
898 }
899 
900 static int
901 emurchan_setformat(kobj_t obj __unused, void *c_devinfo, uint32_t format)
902 {
903 	struct emu_pcm_rchinfo *ch = c_devinfo;
904 
905 	ch->fmt = format;
906 	return (0);
907 }
908 
909 static uint32_t
910 emurchan_setspeed(kobj_t obj __unused, void *c_devinfo, uint32_t speed)
911 {
912 	struct emu_pcm_rchinfo *ch = c_devinfo;
913 
914 	if (ch->pcm->is_emu10k1) {
915 		speed = emu10k1_adcspeed[emu_k1_recval(speed)];
916 	} else {
917 		speed = emu10k2_adcspeed[emu_k2_recval(speed)];
918 	}
919 	ch->spd = speed;
920 	return (ch->spd);
921 }
922 
923 static uint32_t
924 emurchan_setblocksize(kobj_t obj __unused, void *c_devinfo, uint32_t blocksize)
925 {
926 	struct emu_pcm_rchinfo *ch = c_devinfo;
927 	struct emu_pcm_info *sc = ch->pcm;
928 
929 	ch->blksz = blocksize;
930 	/*
931 	 * If blocksize is less than half of buffer size we will not get
932 	 * BUFHALFFULL interrupt in time and channel will need to generate
933 	 * (and use) timer interrupts. Otherwise channel will be marked dead.
934 	 */
935 	if (ch->blksz < (ch->pcm->bufsz / 2)) {
936 		emu_timer_set(sc->card, ch->timer, ch->blksz / sndbuf_getalign(ch->buffer));
937 		emu_timer_enable(sc->card, ch->timer, 1);
938 	} else {
939 		emu_timer_enable(sc->card, ch->timer, 0);
940 	}
941 	return (ch->blksz);
942 }
943 
944 static int
945 emurchan_trigger(kobj_t obj __unused, void *c_devinfo, int go)
946 {
947 	struct emu_pcm_rchinfo *ch = c_devinfo;
948 	struct emu_pcm_info *sc = ch->pcm;
949 	uint32_t val, sz;
950 
951 	if (!PCMTRIG_COMMON(go))
952 		return (0);
953 
954 	switch (sc->bufsz) {
955 	case 4096:
956 		sz = EMU_RECBS_BUFSIZE_4096;
957 		break;
958 	case 8192:
959 		sz = EMU_RECBS_BUFSIZE_8192;
960 		break;
961 	case 16384:
962 		sz = EMU_RECBS_BUFSIZE_16384;
963 		break;
964 	case 32768:
965 		sz = EMU_RECBS_BUFSIZE_32768;
966 		break;
967 	case 65536:
968 		sz = EMU_RECBS_BUFSIZE_65536;
969 		break;
970 	default:
971 		sz = EMU_RECBS_BUFSIZE_4096;
972 	}
973 
974 	snd_mtxlock(sc->lock);
975 	switch (go) {
976 	case PCMTRIG_START:
977 		ch->run = 1;
978 		emu_wrptr(sc->card, 0, ch->sizereg, sz);
979 		val = sc->is_emu10k1 ? EMU_ADCCR_LCHANENABLE : EMU_A_ADCCR_LCHANENABLE;
980 		if (AFMT_CHANNEL(ch->fmt) > 1)
981 			val |= sc->is_emu10k1 ? EMU_ADCCR_RCHANENABLE : EMU_A_ADCCR_RCHANENABLE;
982 		val |= sc->is_emu10k1 ? emu_k1_recval(ch->spd) : emu_k2_recval(ch->spd);
983 		emu_wrptr(sc->card, 0, ch->setupreg, 0);
984 		emu_wrptr(sc->card, 0, ch->setupreg, val);
985 		ch->ihandle = emu_intr_register(sc->card, ch->irqmask, ch->iprmask, &emu_pcm_intr, sc);
986 		break;
987 	case PCMTRIG_STOP:
988 		/* FALLTHROUGH */
989 	case PCMTRIG_ABORT:
990 		ch->run = 0;
991 		emu_wrptr(sc->card, 0, ch->sizereg, 0);
992 		if (ch->setupreg)
993 			emu_wrptr(sc->card, 0, ch->setupreg, 0);
994 		(void)emu_intr_unregister(sc->card, ch->ihandle);
995 		break;
996 	case PCMTRIG_EMLDMAWR:
997 		/* FALLTHROUGH */
998 	case PCMTRIG_EMLDMARD:
999 		/* FALLTHROUGH */
1000 	default:
1001 		break;
1002 	}
1003 	snd_mtxunlock(sc->lock);
1004 
1005 	return (0);
1006 }
1007 
1008 static uint32_t
1009 emurchan_getptr(kobj_t obj __unused, void *c_devinfo)
1010 {
1011 	struct emu_pcm_rchinfo *ch = c_devinfo;
1012 	struct emu_pcm_info *sc = ch->pcm;
1013 	int r;
1014 
1015 	r = emu_rdptr(sc->card, 0, ch->idxreg) & 0x0000ffff;
1016 
1017 	return (r);
1018 }
1019 
1020 static struct pcmchan_caps *
1021 emurchan_getcaps(kobj_t obj __unused, void *c_devinfo __unused)
1022 {
1023 	return (&emu_reccaps_adc);
1024 }
1025 
1026 static kobj_method_t emurchan_methods[] = {
1027 	KOBJMETHOD(channel_init, emurchan_init),
1028 	KOBJMETHOD(channel_free, emurchan_free),
1029 	KOBJMETHOD(channel_setformat, emurchan_setformat),
1030 	KOBJMETHOD(channel_setspeed, emurchan_setspeed),
1031 	KOBJMETHOD(channel_setblocksize, emurchan_setblocksize),
1032 	KOBJMETHOD(channel_trigger, emurchan_trigger),
1033 	KOBJMETHOD(channel_getptr, emurchan_getptr),
1034 	KOBJMETHOD(channel_getcaps, emurchan_getcaps),
1035 	KOBJMETHOD_END
1036 };
1037 CHANNEL_DECLARE(emurchan);
1038 
1039 static void *
1040 emufxrchan_init(kobj_t obj __unused, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir __unused)
1041 {
1042 	struct emu_pcm_info *sc = devinfo;
1043 	struct emu_pcm_rchinfo *ch;
1044 
1045 	KASSERT(dir == PCMDIR_REC, ("emurchan_init: bad direction"));
1046 
1047 	if (sc == NULL) return (NULL);
1048 
1049 	ch = &(sc->rch_efx);
1050 	ch->fmt = SND_FORMAT(AFMT_S16_LE, 1, 0);
1051 	ch->spd = sc->is_emu10k1 ? 48000*32 : 48000 * 64;
1052 	ch->idxreg = EMU_FXIDX;
1053 	ch->basereg = EMU_FXBA;
1054 	ch->sizereg = EMU_FXBS;
1055 	ch->irqmask = EMU_INTE_EFXBUFENABLE;
1056 	ch->iprmask = EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL;
1057 	ch->buffer = b;
1058 	ch->pcm = sc;
1059 	ch->channel = c;
1060 	ch->blksz = sc->bufsz / 2;
1061 
1062 	if (sndbuf_alloc(ch->buffer, emu_gettag(sc->card), 0, sc->bufsz) != 0)
1063 		return (NULL);
1064 	else {
1065 		emu_wrptr(sc->card, 0, ch->basereg, sndbuf_getbufaddr(ch->buffer));
1066 		emu_wrptr(sc->card, 0, ch->sizereg, 0);	/* off */
1067 		return (ch);
1068 	}
1069 }
1070 
1071 static int
1072 emufxrchan_setformat(kobj_t obj __unused, void *c_devinfo __unused, uint32_t format)
1073 {
1074 	if (format == SND_FORMAT(AFMT_S16_LE, 1, 0)) return (0);
1075 	return (EINVAL);
1076 }
1077 
1078 static uint32_t
1079 emufxrchan_setspeed(kobj_t obj __unused, void *c_devinfo, uint32_t speed)
1080 {
1081 	struct emu_pcm_rchinfo *ch = c_devinfo;
1082 
1083 	/* FIXED RATE CHANNEL */
1084 	return (ch->spd);
1085 }
1086 
1087 static uint32_t
1088 emufxrchan_setblocksize(kobj_t obj __unused, void *c_devinfo, uint32_t blocksize)
1089 {
1090 	struct emu_pcm_rchinfo *ch = c_devinfo;
1091 
1092 	ch->blksz = blocksize;
1093 	/*
1094 	 * XXX If blocksize is less than half of buffer size we will not get
1095 	 * interrupt in time and channel will die due to interrupt timeout.
1096 	 * This	should not happen with FX rchan, because it will fill buffer
1097 	 * very	fast (64K buffer is 0.021seconds on Audigy).
1098 	 */
1099 	if (ch->blksz < (ch->pcm->bufsz / 2))
1100 		ch->blksz = ch->pcm->bufsz / 2;
1101 	return (ch->blksz);
1102 }
1103 
1104 static int
1105 emufxrchan_trigger(kobj_t obj __unused, void *c_devinfo, int go)
1106 {
1107 	struct emu_pcm_rchinfo *ch = c_devinfo;
1108 	struct emu_pcm_info *sc = ch->pcm;
1109 	uint32_t sz;
1110 
1111 	if (!PCMTRIG_COMMON(go))
1112 		return (0);
1113 
1114 	switch (sc->bufsz) {
1115 	case 4096:
1116 		sz = EMU_RECBS_BUFSIZE_4096;
1117 		break;
1118 	case 8192:
1119 		sz = EMU_RECBS_BUFSIZE_8192;
1120 		break;
1121 	case 16384:
1122 		sz = EMU_RECBS_BUFSIZE_16384;
1123 		break;
1124 	case 32768:
1125 		sz = EMU_RECBS_BUFSIZE_32768;
1126 		break;
1127 	case 65536:
1128 		sz = EMU_RECBS_BUFSIZE_65536;
1129 		break;
1130 	default:
1131 		sz = EMU_RECBS_BUFSIZE_4096;
1132 	}
1133 
1134 	snd_mtxlock(sc->lock);
1135 	switch (go) {
1136 	case PCMTRIG_START:
1137 		ch->run = 1;
1138 		emu_wrptr(sc->card, 0, ch->sizereg, sz);
1139 		ch->ihandle = emu_intr_register(sc->card, ch->irqmask, ch->iprmask, &emu_pcm_intr, sc);
1140 		/*
1141 		 * SB Live! is limited to 32 mono channels. Audigy
1142 		 * has 64 mono channels. Channels are enabled
1143 		 * by setting a bit in EMU_A_FXWC[1|2] registers.
1144 		 */
1145 		/* XXX there is no way to demultiplex this streams for now */
1146 		if (sc->is_emu10k1) {
1147 			emu_wrptr(sc->card, 0, EMU_FXWC, 0xffffffff);
1148 		} else {
1149 			emu_wrptr(sc->card, 0, EMU_A_FXWC1, 0xffffffff);
1150 			emu_wrptr(sc->card, 0, EMU_A_FXWC2, 0xffffffff);
1151 		}
1152 		break;
1153 	case PCMTRIG_STOP:
1154 		/* FALLTHROUGH */
1155 	case PCMTRIG_ABORT:
1156 		ch->run = 0;
1157 		if (sc->is_emu10k1) {
1158 			emu_wrptr(sc->card, 0, EMU_FXWC, 0x0);
1159 		} else {
1160 			emu_wrptr(sc->card, 0, EMU_A_FXWC1, 0x0);
1161 			emu_wrptr(sc->card, 0, EMU_A_FXWC2, 0x0);
1162 		}
1163 		emu_wrptr(sc->card, 0, ch->sizereg, 0);
1164 		(void)emu_intr_unregister(sc->card, ch->ihandle);
1165 		break;
1166 	case PCMTRIG_EMLDMAWR:
1167 		/* FALLTHROUGH */
1168 	case PCMTRIG_EMLDMARD:
1169 		/* FALLTHROUGH */
1170 	default:
1171 		break;
1172 	}
1173 	snd_mtxunlock(sc->lock);
1174 
1175 	return (0);
1176 }
1177 
1178 static uint32_t
1179 emufxrchan_getptr(kobj_t obj __unused, void *c_devinfo)
1180 {
1181 	struct emu_pcm_rchinfo *ch = c_devinfo;
1182 	struct emu_pcm_info *sc = ch->pcm;
1183 	int r;
1184 
1185 	r = emu_rdptr(sc->card, 0, ch->idxreg) & 0x0000ffff;
1186 
1187 	return (r);
1188 }
1189 
1190 static struct pcmchan_caps *
1191 emufxrchan_getcaps(kobj_t obj __unused, void *c_devinfo)
1192 {
1193 	struct emu_pcm_rchinfo *ch = c_devinfo;
1194 	struct emu_pcm_info *sc = ch->pcm;
1195 
1196 	if (sc->is_emu10k1)
1197 		return (&emu_reccaps_efx_live);
1198 	return (&emu_reccaps_efx_audigy);
1199 
1200 }
1201 
1202 static int
1203 emufxrchan_getrates(kobj_t obj __unused, void *c_devinfo, int **rates)
1204 {
1205 	struct emu_pcm_rchinfo *ch = c_devinfo;
1206 	struct emu_pcm_info *sc = ch->pcm;
1207 
1208 	if (sc->is_emu10k1)
1209 		*rates = emu_rates_live;
1210 	else
1211 		*rates = emu_rates_audigy;
1212 
1213 	return 1;
1214 }
1215 
1216 static kobj_method_t emufxrchan_methods[] = {
1217 	KOBJMETHOD(channel_init, emufxrchan_init),
1218 	KOBJMETHOD(channel_setformat, emufxrchan_setformat),
1219 	KOBJMETHOD(channel_setspeed, emufxrchan_setspeed),
1220 	KOBJMETHOD(channel_setblocksize, emufxrchan_setblocksize),
1221 	KOBJMETHOD(channel_trigger, emufxrchan_trigger),
1222 	KOBJMETHOD(channel_getptr, emufxrchan_getptr),
1223 	KOBJMETHOD(channel_getcaps, emufxrchan_getcaps),
1224 	KOBJMETHOD(channel_getrates, emufxrchan_getrates),
1225 	KOBJMETHOD_END
1226 };
1227 CHANNEL_DECLARE(emufxrchan);
1228 
1229 
1230 static uint32_t
1231 emu_pcm_intr(void *pcm, uint32_t stat)
1232 {
1233 	struct emu_pcm_info *sc = (struct emu_pcm_info *)pcm;
1234 	uint32_t ack;
1235 	int i;
1236 
1237 	ack = 0;
1238 
1239 	snd_mtxlock(sc->lock);
1240 
1241 	if (stat & EMU_IPR_INTERVALTIMER) {
1242 		ack |= EMU_IPR_INTERVALTIMER;
1243 		for (i = 0; i < MAX_CHANNELS; i++)
1244 			if (sc->pch[i].channel) {
1245 				if (sc->pch[i].run == 1) {
1246 					snd_mtxunlock(sc->lock);
1247 					chn_intr(sc->pch[i].channel);
1248 					snd_mtxlock(sc->lock);
1249 				} else
1250 					emu_timer_enable(sc->card, sc->pch[i].timer, 0);
1251 			}
1252 		/* ADC may install timer to get low-latency interrupts */
1253 		if ((sc->rch_adc.channel) && (sc->rch_adc.run)) {
1254 			snd_mtxunlock(sc->lock);
1255 			chn_intr(sc->rch_adc.channel);
1256 			snd_mtxlock(sc->lock);
1257 		}
1258 		/*
1259 		 * EFX does not use timer, because it will fill
1260 		 * buffer at least 32x times faster than ADC.
1261 		 */
1262 	}
1263 
1264 
1265 	if (stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL)) {
1266 		ack |= stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL);
1267 		if (sc->rch_adc.channel) {
1268 			snd_mtxunlock(sc->lock);
1269 			chn_intr(sc->rch_adc.channel);
1270 			snd_mtxlock(sc->lock);
1271 		}
1272 	}
1273 
1274 	if (stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL)) {
1275 		ack |= stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL);
1276 		if (sc->rch_efx.channel) {
1277 			snd_mtxunlock(sc->lock);
1278 			chn_intr(sc->rch_efx.channel);
1279 			snd_mtxlock(sc->lock);
1280 		}
1281 	}
1282 	snd_mtxunlock(sc->lock);
1283 
1284 	return (ack);
1285 }
1286 
1287 static int
1288 emu_pcm_init(struct emu_pcm_info *sc)
1289 {
1290 	sc->bufsz = pcm_getbuffersize(sc->dev, EMUPAGESIZE, EMU_REC_BUFSZ, EMU_MAX_BUFSZ);
1291 	return (0);
1292 }
1293 
1294 static int
1295 emu_pcm_uninit(struct emu_pcm_info *sc __unused)
1296 {
1297 	return (0);
1298 }
1299 
1300 static int
1301 emu_pcm_probe(device_t dev)
1302 {
1303 	uintptr_t func, route, r;
1304 	const char *rt;
1305 	char buffer[255];
1306 
1307 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_FUNC, &func);
1308 
1309 	if (func != SCF_PCM)
1310 		return (ENXIO);
1311 
1312 	rt = "UNKNOWN";
1313 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ROUTE, &route);
1314 	switch (route) {
1315 	case RT_FRONT:
1316 		rt = "front";
1317 		break;
1318 	case RT_REAR:
1319 		rt = "rear";
1320 		break;
1321 	case RT_CENTER:
1322 		rt = "center";
1323 		break;
1324 	case RT_SUB:
1325 		rt = "subwoofer";
1326 		break;
1327 	case RT_SIDE:
1328 		rt = "side";
1329 		break;
1330 	case RT_MCHRECORD:
1331 		rt = "multichannel recording";
1332 		break;
1333 	}
1334 
1335 	snprintf(buffer, 255, "EMU10Kx DSP %s PCM interface", rt);
1336 	device_set_desc_copy(dev, buffer);
1337 	return (0);
1338 }
1339 
1340 static int
1341 emu_pcm_attach(device_t dev)
1342 {
1343 	struct emu_pcm_info *sc;
1344 	unsigned int i;
1345 	char status[SND_STATUSLEN];
1346 	uint32_t inte, ipr;
1347 	uintptr_t route, r, ivar;
1348 
1349 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
1350 	sc->card = (struct emu_sc_info *)(device_get_softc(device_get_parent(dev)));
1351 	if (sc->card == NULL) {
1352 		device_printf(dev, "cannot get bridge conf\n");
1353 		free(sc, M_DEVBUF);
1354 		return (ENXIO);
1355 	}
1356 
1357 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_emu10kx pcm softc");
1358 	sc->dev = dev;
1359 
1360 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &ivar);
1361 	sc->is_emu10k1 = ivar ? 1 : 0;
1362 
1363 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_MCH_DISABLED, &ivar);
1364 	sc->mch_disabled = ivar ? 1 : 0;
1365 
1366 	sc->codec = NULL;
1367 
1368 	for (i = 0; i < 8; i++) {
1369 		sc->rt.routing_left[i] = i;
1370 		sc->rt.amounts_left[i] = 0x00;
1371 		sc->rt.routing_right[i] = i;
1372 		sc->rt.amounts_right[i] = 0x00;
1373 	}
1374 
1375 	for (i = 0; i < 8; i++) {
1376 		sc->rt_mono.routing_left[i] = i;
1377 		sc->rt_mono.amounts_left[i] = 0x00;
1378 		sc->rt_mono.routing_right[i] = i;
1379 		sc->rt_mono.amounts_right[i] = 0x00;
1380 	}
1381 
1382 	sc->emu10k1_volcache[0][0] = 75;
1383 	sc->emu10k1_volcache[1][0] = 75;
1384 	sc->emu10k1_volcache[0][1] = 75;
1385 	sc->emu10k1_volcache[1][1] = 75;
1386 	r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ROUTE, &route);
1387 	sc->route = route;
1388 	switch (route) {
1389 	case RT_FRONT:
1390 		sc->rt.amounts_left[0] = 0xff;
1391 		sc->rt.amounts_right[1] = 0xff;
1392 		sc->rt_mono.amounts_left[0] = 0xff;
1393 		sc->rt_mono.amounts_left[1] = 0xff;
1394 		if (sc->is_emu10k1)
1395 			sc->codec = AC97_CREATE(dev, sc, emu_ac97);
1396 		else
1397 			sc->codec = AC97_CREATE(dev, sc, emu_eac97);
1398 		sc->ac97_mixerclass = NULL;
1399 		if (sc->codec != NULL)
1400 			sc->ac97_mixerclass = ac97_getmixerclass();
1401 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1402 			device_printf(dev, "failed to initialize DSP mixer\n");
1403 			goto bad;
1404 		}
1405 		break;
1406 	case RT_REAR:
1407 		sc->rt.amounts_left[2] = 0xff;
1408 		sc->rt.amounts_right[3] = 0xff;
1409 		sc->rt_mono.amounts_left[2] = 0xff;
1410 		sc->rt_mono.amounts_left[3] = 0xff;
1411 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1412 			device_printf(dev, "failed to initialize mixer\n");
1413 			goto bad;
1414 		}
1415 		break;
1416 	case RT_CENTER:
1417 		sc->rt.amounts_left[4] = 0xff;
1418 		sc->rt_mono.amounts_left[4] = 0xff;
1419 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1420 			device_printf(dev, "failed to initialize mixer\n");
1421 			goto bad;
1422 		}
1423 		break;
1424 	case RT_SUB:
1425 		sc->rt.amounts_left[5] = 0xff;
1426 		sc->rt_mono.amounts_left[5] = 0xff;
1427 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1428 			device_printf(dev, "failed to initialize mixer\n");
1429 			goto bad;
1430 		}
1431 		break;
1432 	case RT_SIDE:
1433 		sc->rt.amounts_left[6] = 0xff;
1434 		sc->rt.amounts_right[7] = 0xff;
1435 		sc->rt_mono.amounts_left[6] = 0xff;
1436 		sc->rt_mono.amounts_left[7] = 0xff;
1437 		if (mixer_init(dev, &emudspmixer_class, sc)) {
1438 			device_printf(dev, "failed to initialize mixer\n");
1439 			goto bad;
1440 		}
1441 		break;
1442 	case RT_MCHRECORD:
1443 		if (mixer_init(dev, &emuefxmixer_class, sc)) {
1444 			device_printf(dev, "failed to initialize EFX mixer\n");
1445 			goto bad;
1446 		}
1447 		break;
1448 	default:
1449 		device_printf(dev, "invalid default route\n");
1450 		goto bad;
1451 	}
1452 
1453 	inte = EMU_INTE_INTERTIMERENB;
1454 	ipr = EMU_IPR_INTERVALTIMER; /* Used by playback & ADC */
1455 	sc->ihandle = emu_intr_register(sc->card, inte, ipr, &emu_pcm_intr, sc);
1456 
1457 	if (emu_pcm_init(sc) == -1) {
1458 		device_printf(dev, "unable to initialize PCM part of the card\n");
1459 		goto bad;
1460 	}
1461 
1462 	/*
1463 	 * We don't register interrupt handler with snd_setup_intr
1464 	 * in pcm device. Mark pcm device as MPSAFE manually.
1465 	 */
1466 	pcm_setflags(dev, pcm_getflags(dev) | SD_F_MPSAFE);
1467 
1468 	/* XXX we should better get number of available channels from parent */
1469 	if (pcm_register(dev, sc, (route == RT_FRONT) ? MAX_CHANNELS : 1, (route == RT_FRONT) ? 1 : 0)) {
1470 		device_printf(dev, "can't register PCM channels!\n");
1471 		goto bad;
1472 	}
1473 	sc->pnum = 0;
1474 	if (route != RT_MCHRECORD)
1475 		pcm_addchan(dev, PCMDIR_PLAY, &emupchan_class, sc);
1476 	if (route == RT_FRONT) {
1477 		for (i = 1; i < MAX_CHANNELS; i++)
1478 			pcm_addchan(dev, PCMDIR_PLAY, &emupchan_class, sc);
1479 		pcm_addchan(dev, PCMDIR_REC, &emurchan_class, sc);
1480 	}
1481 	if (route == RT_MCHRECORD)
1482 		pcm_addchan(dev, PCMDIR_REC, &emufxrchan_class, sc);
1483 
1484 	snprintf(status, SND_STATUSLEN, "on %s", device_get_nameunit(device_get_parent(dev)));
1485 	pcm_setstatus(dev, status);
1486 
1487 	return (0);
1488 
1489 bad:
1490 	if (sc->codec)
1491 		ac97_destroy(sc->codec);
1492 	if (sc->lock)
1493 		snd_mtxfree(sc->lock);
1494 	free(sc, M_DEVBUF);
1495 	return (ENXIO);
1496 }
1497 
1498 static int
1499 emu_pcm_detach(device_t dev)
1500 {
1501 	int r;
1502 	struct emu_pcm_info *sc;
1503 
1504 	sc = pcm_getdevinfo(dev);
1505 
1506 	r = pcm_unregister(dev);
1507 
1508 	if (r) 	return (r);
1509 
1510 	emu_pcm_uninit(sc);
1511 
1512 	if (sc->lock)
1513 		snd_mtxfree(sc->lock);
1514 	free(sc, M_DEVBUF);
1515 
1516 	return (0);
1517 }
1518 
1519 static device_method_t emu_pcm_methods[] = {
1520 	DEVMETHOD(device_probe, emu_pcm_probe),
1521 	DEVMETHOD(device_attach, emu_pcm_attach),
1522 	DEVMETHOD(device_detach, emu_pcm_detach),
1523 
1524 	DEVMETHOD_END
1525 };
1526 
1527 static driver_t emu_pcm_driver = {
1528 	"pcm",
1529 	emu_pcm_methods,
1530 	PCM_SOFTC_SIZE,
1531 	NULL,
1532 	0,
1533 	NULL
1534 };
1535 DRIVER_MODULE(snd_emu10kx_pcm, emu10kx, emu_pcm_driver, pcm_devclass, 0, 0);
1536 MODULE_DEPEND(snd_emu10kx_pcm, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER);
1537 MODULE_DEPEND(snd_emu10kx_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1538 MODULE_VERSION(snd_emu10kx_pcm, SND_EMU10KX_PREFVER);
1539