xref: /freebsd/sys/dev/sound/pci/emu10k1.c (revision 6137b5f7b8c183ee8806d79b3f1d8e5e3ddb3df3)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2004 David O'Brien <obrien@FreeBSD.org>
5  * Copyright (c) 2003 Orlando Bassotto <orlando.bassotto@ieo-research.it>
6  * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #ifdef HAVE_KERNEL_OPTION_HEADERS
32 #include "opt_snd.h"
33 #endif
34 
35 #include <dev/sound/pcm/sound.h>
36 #include <dev/sound/pcm/ac97.h>
37 #include <dev/sound/pci/emuxkireg.h>
38 
39 #include <dev/pci/pcireg.h>
40 #include <dev/pci/pcivar.h>
41 #include <sys/queue.h>
42 
43 #include <dev/sound/midi/mpu401.h>
44 #include "mpufoi_if.h"
45 
46 /* -------------------------------------------------------------------- */
47 
48 #define	NUM_G		64	/* use all channels */
49 #define	WAVEOUT_MAXBUFSIZE 32768
50 #define	EMUPAGESIZE	4096	/* don't change */
51 #define	EMUMAXPAGES	(WAVEOUT_MAXBUFSIZE * NUM_G / EMUPAGESIZE)
52 #define	EMU10K1_PCI_ID	0x00021102	/* 1102 => Creative Labs Vendor ID */
53 #define	EMU10K2_PCI_ID	0x00041102
54 #define	EMU10K3_PCI_ID	0x00081102
55 #define	EMU_DEFAULT_BUFSZ	4096
56 #define EMU_MAX_CHANS	8
57 #define	EMU_CHANS	4
58 
59 #define	MAXREQVOICES	8
60 #define	RESERVED	0
61 #define	NUM_MIDI	16
62 #define	NUM_FXSENDS	4
63 
64 #define	TMEMSIZE	256*1024
65 #define	TMEMSIZEREG	4
66 
67 #define	ENABLE		0xffffffff
68 #define	DISABLE		0x00000000
69 #define	ENV_ON		EMU_CHAN_DCYSUSV_CHANNELENABLE_MASK
70 #define	ENV_OFF		0x00	/* XXX: should this be 1? */
71 
72 #define	EMU_A_IOCFG_GPOUT_A	0x40
73 #define	EMU_A_IOCFG_GPOUT_D	0x04
74 #define	EMU_A_IOCFG_GPOUT_AD (EMU_A_IOCFG_GPOUT_A|EMU_A_IOCFG_GPOUT_D)  /* EMU_A_IOCFG_GPOUT0 */
75 
76 #define	EMU_HCFG_GPOUT1		0x00000800
77 
78 /* instruction set */
79 #define iACC3	 0x06
80 #define iMACINT0 0x04
81 #define iINTERP  0x0e
82 
83 #define C_00000000	0x40
84 #define C_00000001	0x41
85 #define C_00000004	0x44
86 #define C_40000000	0x4d
87 /* Audigy constants */
88 #define A_C_00000000	0xc0
89 #define A_C_40000000	0xcd
90 
91 /* GPRs */
92 #define FXBUS(x)	(0x00 + (x))
93 #define EXTIN(x)	(0x10 + (x))
94 #define EXTOUT(x)	(0x20 + (x))
95 
96 #define GPR(x)		(EMU_FXGPREGBASE + (x))
97 #define A_EXTIN(x)	(0x40 + (x))
98 #define A_FXBUS(x)	(0x00 + (x))
99 #define A_EXTOUT(x)	(0x60 + (x))
100 #define A_GPR(x)	(EMU_A_FXGPREGBASE + (x))
101 
102 /* FX buses */
103 #define FXBUS_PCM_LEFT		0x00
104 #define FXBUS_PCM_RIGHT		0x01
105 #define FXBUS_MIDI_LEFT		0x04
106 #define FXBUS_MIDI_RIGHT	0x05
107 #define FXBUS_MIDI_REVERB	0x0c
108 #define FXBUS_MIDI_CHORUS	0x0d
109 
110 /* Inputs */
111 #define EXTIN_AC97_L		0x00
112 #define EXTIN_AC97_R		0x01
113 #define EXTIN_SPDIF_CD_L	0x02
114 #define EXTIN_SPDIF_CD_R	0x03
115 #define EXTIN_TOSLINK_L		0x06
116 #define EXTIN_TOSLINK_R		0x07
117 #define EXTIN_COAX_SPDIF_L	0x0a
118 #define EXTIN_COAX_SPDIF_R	0x0b
119 /* Audigy Inputs */
120 #define A_EXTIN_AC97_L		0x00
121 #define A_EXTIN_AC97_R		0x01
122 
123 /* Outputs */
124 #define EXTOUT_AC97_L	   0x00
125 #define EXTOUT_AC97_R	   0x01
126 #define EXTOUT_TOSLINK_L   0x02
127 #define EXTOUT_TOSLINK_R   0x03
128 #define EXTOUT_AC97_CENTER 0x04
129 #define EXTOUT_AC97_LFE	   0x05
130 #define EXTOUT_HEADPHONE_L 0x06
131 #define EXTOUT_HEADPHONE_R 0x07
132 #define EXTOUT_REAR_L	   0x08
133 #define EXTOUT_REAR_R	   0x09
134 #define EXTOUT_ADC_CAP_L   0x0a
135 #define EXTOUT_ADC_CAP_R   0x0b
136 #define EXTOUT_ACENTER	   0x11
137 #define EXTOUT_ALFE	   0x12
138 /* Audigy Outputs */
139 #define A_EXTOUT_FRONT_L	0x00
140 #define A_EXTOUT_FRONT_R	0x01
141 #define A_EXTOUT_CENTER		0x02
142 #define A_EXTOUT_LFE		0x03
143 #define A_EXTOUT_HEADPHONE_L	0x04
144 #define A_EXTOUT_HEADPHONE_R	0x05
145 #define A_EXTOUT_REAR_L		0x06
146 #define A_EXTOUT_REAR_R		0x07
147 #define A_EXTOUT_AFRONT_L	0x08
148 #define A_EXTOUT_AFRONT_R	0x09
149 #define A_EXTOUT_ACENTER	0x0a
150 #define A_EXTOUT_ALFE		0x0b
151 #define A_EXTOUT_AREAR_L	0x0e
152 #define A_EXTOUT_AREAR_R	0x0f
153 #define A_EXTOUT_AC97_L		0x10
154 #define A_EXTOUT_AC97_R		0x11
155 #define A_EXTOUT_ADC_CAP_L	0x16
156 #define A_EXTOUT_ADC_CAP_R	0x17
157 
158 struct emu_memblk {
159 	SLIST_ENTRY(emu_memblk) link;
160 	void *buf;
161 	bus_addr_t buf_addr;
162 	u_int32_t pte_start, pte_size;
163 	bus_dmamap_t buf_map;
164 };
165 
166 struct emu_mem {
167 	u_int8_t bmap[EMUMAXPAGES / 8];
168 	u_int32_t *ptb_pages;
169 	void *silent_page;
170 	bus_addr_t silent_page_addr;
171 	bus_addr_t ptb_pages_addr;
172 	bus_dmamap_t ptb_map;
173 	bus_dmamap_t silent_map;
174 	SLIST_HEAD(, emu_memblk) blocks;
175 };
176 
177 struct emu_voice {
178 	int vnum;
179 	unsigned int b16:1, stereo:1, busy:1, running:1, ismaster:1;
180 	int speed;
181 	int start, end, vol;
182 	int fxrt1;	/* FX routing */
183 	int fxrt2;	/* FX routing (only for audigy) */
184 	u_int32_t buf;
185 	struct emu_voice *slave;
186 	struct pcm_channel *channel;
187 };
188 
189 struct sc_info;
190 
191 /* channel registers */
192 struct sc_pchinfo {
193 	int spd, fmt, blksz, run;
194 	struct emu_voice *master, *slave;
195 	struct snd_dbuf *buffer;
196 	struct pcm_channel *channel;
197 	struct sc_info *parent;
198 };
199 
200 struct sc_rchinfo {
201 	int spd, fmt, run, blksz, num;
202 	u_int32_t idxreg, basereg, sizereg, setupreg, irqmask;
203 	struct snd_dbuf *buffer;
204 	struct pcm_channel *channel;
205 	struct sc_info *parent;
206 };
207 
208 /* device private data */
209 struct sc_info {
210 	device_t	dev;
211 	u_int32_t	type, rev;
212 	u_int32_t	tos_link:1, APS:1, audigy:1, audigy2:1;
213 	u_int32_t	addrmask;	/* wider if audigy */
214 
215 	bus_space_tag_t st;
216 	bus_space_handle_t sh;
217 	bus_dma_tag_t parent_dmat;
218 
219 	struct resource *reg, *irq;
220 	void		*ih;
221 	struct mtx	*lock;
222 
223 	unsigned int bufsz;
224 	int timer, timerinterval;
225 	int pnum, rnum;
226 	int nchans;
227 	struct emu_mem mem;
228 	struct emu_voice voice[64];
229 	struct sc_pchinfo pch[EMU_MAX_CHANS];
230 	struct sc_rchinfo rch[3];
231 	struct mpu401   *mpu;
232 	mpu401_intr_t           *mpu_intr;
233 	int mputx;
234 };
235 
236 /* -------------------------------------------------------------------- */
237 
238 /*
239  * prototypes
240  */
241 
242 /* stuff */
243 static int emu_init(struct sc_info *);
244 static void emu_intr(void *);
245 static void *emu_malloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr, bus_dmamap_t *map);
246 static void *emu_memalloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr);
247 static int emu_memfree(struct sc_info *sc, void *buf);
248 static int emu_memstart(struct sc_info *sc, void *buf);
249 #ifdef EMUDEBUG
250 static void emu_vdump(struct sc_info *sc, struct emu_voice *v);
251 #endif
252 
253 /* talk to the card */
254 static u_int32_t emu_rd(struct sc_info *, int, int);
255 static void emu_wr(struct sc_info *, int, u_int32_t, int);
256 
257 /* -------------------------------------------------------------------- */
258 
259 static u_int32_t emu_rfmt_ac97[] = {
260 	SND_FORMAT(AFMT_S16_LE, 1, 0),
261 	SND_FORMAT(AFMT_S16_LE, 2, 0),
262 	0
263 };
264 
265 static u_int32_t emu_rfmt_mic[] = {
266 	SND_FORMAT(AFMT_U8, 1, 0),
267 	0
268 };
269 
270 static u_int32_t emu_rfmt_efx[] = {
271 	SND_FORMAT(AFMT_S16_LE, 2, 0),
272 	0
273 };
274 
275 static struct pcmchan_caps emu_reccaps[3] = {
276 	{8000, 48000, emu_rfmt_ac97, 0},
277 	{8000, 8000, emu_rfmt_mic, 0},
278 	{48000, 48000, emu_rfmt_efx, 0},
279 };
280 
281 static u_int32_t emu_pfmt[] = {
282 	SND_FORMAT(AFMT_U8, 1, 0),
283 	SND_FORMAT(AFMT_U8, 2, 0),
284 	SND_FORMAT(AFMT_S16_LE, 1, 0),
285 	SND_FORMAT(AFMT_S16_LE, 2, 0),
286 	0
287 };
288 
289 static struct pcmchan_caps emu_playcaps = {4000, 48000, emu_pfmt, 0};
290 
291 static int adcspeed[8] = {48000, 44100, 32000, 24000, 22050, 16000, 11025, 8000};
292 /* audigy supports 12kHz. */
293 static int audigy_adcspeed[9] = {
294 	48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000
295 };
296 
297 /* -------------------------------------------------------------------- */
298 /* Hardware */
299 static u_int32_t
300 emu_rd(struct sc_info *sc, int regno, int size)
301 {
302 	switch (size) {
303 	case 1:
304 		return bus_space_read_1(sc->st, sc->sh, regno);
305 	case 2:
306 		return bus_space_read_2(sc->st, sc->sh, regno);
307 	case 4:
308 		return bus_space_read_4(sc->st, sc->sh, regno);
309 	default:
310 		return 0xffffffff;
311 	}
312 }
313 
314 static void
315 emu_wr(struct sc_info *sc, int regno, u_int32_t data, int size)
316 {
317 	switch (size) {
318 	case 1:
319 		bus_space_write_1(sc->st, sc->sh, regno, data);
320 		break;
321 	case 2:
322 		bus_space_write_2(sc->st, sc->sh, regno, data);
323 		break;
324 	case 4:
325 		bus_space_write_4(sc->st, sc->sh, regno, data);
326 		break;
327 	}
328 }
329 
330 static u_int32_t
331 emu_rdptr(struct sc_info *sc, int chn, int reg)
332 {
333 	u_int32_t ptr, val, mask, size, offset;
334 
335 	ptr = ((reg << 16) & sc->addrmask) | (chn & EMU_PTR_CHNO_MASK);
336 	emu_wr(sc, EMU_PTR, ptr, 4);
337 	val = emu_rd(sc, EMU_DATA, 4);
338 	if (reg & 0xff000000) {
339 		size = (reg >> 24) & 0x3f;
340 		offset = (reg >> 16) & 0x1f;
341 		mask = ((1 << size) - 1) << offset;
342 		val &= mask;
343 		val >>= offset;
344 	}
345 	return val;
346 }
347 
348 static void
349 emu_wrptr(struct sc_info *sc, int chn, int reg, u_int32_t data)
350 {
351 	u_int32_t ptr, mask, size, offset;
352 
353 	ptr = ((reg << 16) & sc->addrmask) | (chn & EMU_PTR_CHNO_MASK);
354 	emu_wr(sc, EMU_PTR, ptr, 4);
355 	if (reg & 0xff000000) {
356 		size = (reg >> 24) & 0x3f;
357 		offset = (reg >> 16) & 0x1f;
358 		mask = ((1 << size) - 1) << offset;
359 		data <<= offset;
360 		data &= mask;
361 		data |= emu_rd(sc, EMU_DATA, 4) & ~mask;
362 	}
363 	emu_wr(sc, EMU_DATA, data, 4);
364 }
365 
366 static void
367 emu_wrefx(struct sc_info *sc, unsigned int pc, unsigned int data)
368 {
369 	pc += sc->audigy ? EMU_A_MICROCODEBASE : EMU_MICROCODEBASE;
370 	emu_wrptr(sc, 0, pc, data);
371 }
372 
373 /* -------------------------------------------------------------------- */
374 /* ac97 codec */
375 /* no locking needed */
376 
377 static int
378 emu_rdcd(kobj_t obj, void *devinfo, int regno)
379 {
380 	struct sc_info *sc = (struct sc_info *)devinfo;
381 
382 	emu_wr(sc, EMU_AC97ADDR, regno, 1);
383 	return emu_rd(sc, EMU_AC97DATA, 2);
384 }
385 
386 static int
387 emu_wrcd(kobj_t obj, void *devinfo, int regno, u_int32_t data)
388 {
389 	struct sc_info *sc = (struct sc_info *)devinfo;
390 
391 	emu_wr(sc, EMU_AC97ADDR, regno, 1);
392 	emu_wr(sc, EMU_AC97DATA, data, 2);
393 	return 0;
394 }
395 
396 static kobj_method_t emu_ac97_methods[] = {
397 	KOBJMETHOD(ac97_read,		emu_rdcd),
398 	KOBJMETHOD(ac97_write,		emu_wrcd),
399 	KOBJMETHOD_END
400 };
401 AC97_DECLARE(emu_ac97);
402 
403 /* -------------------------------------------------------------------- */
404 /* stuff */
405 static int
406 emu_settimer(struct sc_info *sc)
407 {
408 	struct sc_pchinfo *pch;
409 	struct sc_rchinfo *rch;
410 	int i, tmp, rate;
411 
412 	rate = 0;
413 	for (i = 0; i < sc->nchans; i++) {
414 		pch = &sc->pch[i];
415 		if (pch->buffer) {
416 			tmp = (pch->spd * sndbuf_getalign(pch->buffer))
417 			    / pch->blksz;
418 			if (tmp > rate)
419 				rate = tmp;
420 		}
421 	}
422 
423 	for (i = 0; i < 3; i++) {
424 		rch = &sc->rch[i];
425 		if (rch->buffer) {
426 			tmp = (rch->spd * sndbuf_getalign(rch->buffer))
427 			    / rch->blksz;
428 			if (tmp > rate)
429 				rate = tmp;
430 		}
431 	}
432 	RANGE(rate, 48, 9600);
433 	sc->timerinterval = 48000 / rate;
434 	emu_wr(sc, EMU_TIMER, sc->timerinterval & 0x03ff, 2);
435 
436 	return sc->timerinterval;
437 }
438 
439 static int
440 emu_enatimer(struct sc_info *sc, int go)
441 {
442 	u_int32_t x;
443 	if (go) {
444 		if (sc->timer++ == 0) {
445 			x = emu_rd(sc, EMU_INTE, 4);
446 			x |= EMU_INTE_INTERTIMERENB;
447 			emu_wr(sc, EMU_INTE, x, 4);
448 		}
449 	} else {
450 		sc->timer = 0;
451 		x = emu_rd(sc, EMU_INTE, 4);
452 		x &= ~EMU_INTE_INTERTIMERENB;
453 		emu_wr(sc, EMU_INTE, x, 4);
454 	}
455 	return 0;
456 }
457 
458 static void
459 emu_enastop(struct sc_info *sc, char channel, int enable)
460 {
461 	int reg = (channel & 0x20) ? EMU_SOLEH : EMU_SOLEL;
462 	channel &= 0x1f;
463 	reg |= 1 << 24;
464 	reg |= channel << 16;
465 	emu_wrptr(sc, 0, reg, enable);
466 }
467 
468 static int
469 emu_recval(int speed) {
470 	int val;
471 
472 	val = 0;
473 	while (val < 7 && speed < adcspeed[val])
474 		val++;
475 	return val;
476 }
477 
478 static int
479 audigy_recval(int speed) {
480 	int val;
481 
482 	val = 0;
483 	while (val < 8 && speed < audigy_adcspeed[val])
484 		val++;
485 	return val;
486 }
487 
488 static u_int32_t
489 emu_rate_to_pitch(u_int32_t rate)
490 {
491 	static u_int32_t logMagTable[128] = {
492 		0x00000, 0x02dfc, 0x05b9e, 0x088e6, 0x0b5d6, 0x0e26f, 0x10eb3, 0x13aa2,
493 		0x1663f, 0x1918a, 0x1bc84, 0x1e72e, 0x2118b, 0x23b9a, 0x2655d, 0x28ed5,
494 		0x2b803, 0x2e0e8, 0x30985, 0x331db, 0x359eb, 0x381b6, 0x3a93d, 0x3d081,
495 		0x3f782, 0x41e42, 0x444c1, 0x46b01, 0x49101, 0x4b6c4, 0x4dc49, 0x50191,
496 		0x5269e, 0x54b6f, 0x57006, 0x59463, 0x5b888, 0x5dc74, 0x60029, 0x623a7,
497 		0x646ee, 0x66a00, 0x68cdd, 0x6af86, 0x6d1fa, 0x6f43c, 0x7164b, 0x73829,
498 		0x759d4, 0x77b4f, 0x79c9a, 0x7bdb5, 0x7dea1, 0x7ff5e, 0x81fed, 0x8404e,
499 		0x86082, 0x88089, 0x8a064, 0x8c014, 0x8df98, 0x8fef1, 0x91e20, 0x93d26,
500 		0x95c01, 0x97ab4, 0x9993e, 0x9b79f, 0x9d5d9, 0x9f3ec, 0xa11d8, 0xa2f9d,
501 		0xa4d3c, 0xa6ab5, 0xa8808, 0xaa537, 0xac241, 0xadf26, 0xafbe7, 0xb1885,
502 		0xb3500, 0xb5157, 0xb6d8c, 0xb899f, 0xba58f, 0xbc15e, 0xbdd0c, 0xbf899,
503 		0xc1404, 0xc2f50, 0xc4a7b, 0xc6587, 0xc8073, 0xc9b3f, 0xcb5ed, 0xcd07c,
504 		0xceaec, 0xd053f, 0xd1f73, 0xd398a, 0xd5384, 0xd6d60, 0xd8720, 0xda0c3,
505 		0xdba4a, 0xdd3b4, 0xded03, 0xe0636, 0xe1f4e, 0xe384a, 0xe512c, 0xe69f3,
506 		0xe829f, 0xe9b31, 0xeb3a9, 0xecc08, 0xee44c, 0xefc78, 0xf148a, 0xf2c83,
507 		0xf4463, 0xf5c2a, 0xf73da, 0xf8b71, 0xfa2f0, 0xfba57, 0xfd1a7, 0xfe8df
508 	};
509 	static char logSlopeTable[128] = {
510 		0x5c, 0x5c, 0x5b, 0x5a, 0x5a, 0x59, 0x58, 0x58,
511 		0x57, 0x56, 0x56, 0x55, 0x55, 0x54, 0x53, 0x53,
512 		0x52, 0x52, 0x51, 0x51, 0x50, 0x50, 0x4f, 0x4f,
513 		0x4e, 0x4d, 0x4d, 0x4d, 0x4c, 0x4c, 0x4b, 0x4b,
514 		0x4a, 0x4a, 0x49, 0x49, 0x48, 0x48, 0x47, 0x47,
515 		0x47, 0x46, 0x46, 0x45, 0x45, 0x45, 0x44, 0x44,
516 		0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x41, 0x41,
517 		0x41, 0x40, 0x40, 0x40, 0x3f, 0x3f, 0x3f, 0x3e,
518 		0x3e, 0x3e, 0x3d, 0x3d, 0x3d, 0x3c, 0x3c, 0x3c,
519 		0x3b, 0x3b, 0x3b, 0x3b, 0x3a, 0x3a, 0x3a, 0x39,
520 		0x39, 0x39, 0x39, 0x38, 0x38, 0x38, 0x38, 0x37,
521 		0x37, 0x37, 0x37, 0x36, 0x36, 0x36, 0x36, 0x35,
522 		0x35, 0x35, 0x35, 0x34, 0x34, 0x34, 0x34, 0x34,
523 		0x33, 0x33, 0x33, 0x33, 0x32, 0x32, 0x32, 0x32,
524 		0x32, 0x31, 0x31, 0x31, 0x31, 0x31, 0x30, 0x30,
525 		0x30, 0x30, 0x30, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f
526 	};
527 	int i;
528 
529 	if (rate == 0)
530 		return 0;	/* Bail out if no leading "1" */
531 	rate *= 11185;	/* Scale 48000 to 0x20002380 */
532 	for (i = 31; i > 0; i--) {
533 		if (rate & 0x80000000) {	/* Detect leading "1" */
534 			return (((u_int32_t) (i - 15) << 20) +
535 			    logMagTable[0x7f & (rate >> 24)] +
536 			    (0x7f & (rate >> 17)) *
537 			    logSlopeTable[0x7f & (rate >> 24)]);
538 		}
539 		rate <<= 1;
540 	}
541 
542 	return 0;		/* Should never reach this point */
543 }
544 
545 static u_int32_t
546 emu_rate_to_linearpitch(u_int32_t rate)
547 {
548 	rate = (rate << 8) / 375;
549 	return (rate >> 1) + (rate & 1);
550 }
551 
552 static struct emu_voice *
553 emu_valloc(struct sc_info *sc)
554 {
555 	struct emu_voice *v;
556 	int i;
557 
558 	v = NULL;
559 	for (i = 0; i < 64 && sc->voice[i].busy; i++);
560 	if (i < 64) {
561 		v = &sc->voice[i];
562 		v->busy = 1;
563 	}
564 	return v;
565 }
566 
567 static int
568 emu_vinit(struct sc_info *sc, struct emu_voice *m, struct emu_voice *s,
569 	  u_int32_t sz, struct snd_dbuf *b)
570 {
571 	void *buf;
572 	bus_addr_t tmp_addr;
573 
574 	buf = emu_memalloc(sc, sz, &tmp_addr);
575 	if (buf == NULL)
576 		return -1;
577 	if (b != NULL)
578 		sndbuf_setup(b, buf, sz);
579 	m->start = emu_memstart(sc, buf) * EMUPAGESIZE;
580 	m->end = m->start + sz;
581 	m->channel = NULL;
582 	m->speed = 0;
583 	m->b16 = 0;
584 	m->stereo = 0;
585 	m->running = 0;
586 	m->ismaster = 1;
587 	m->vol = 0xff;
588 	m->buf = tmp_addr;
589 	m->slave = s;
590 	if (sc->audigy) {
591 		m->fxrt1 = FXBUS_MIDI_CHORUS | FXBUS_PCM_RIGHT << 8 |
592 		    FXBUS_PCM_LEFT << 16 | FXBUS_MIDI_REVERB << 24;
593 		m->fxrt2 = 0x3f3f3f3f;	/* No effects on second route */
594 	} else {
595 		m->fxrt1 = FXBUS_MIDI_CHORUS | FXBUS_PCM_RIGHT << 4 |
596 		    FXBUS_PCM_LEFT << 8 | FXBUS_MIDI_REVERB << 12;
597 		m->fxrt2 = 0;
598 	}
599 
600 	if (s != NULL) {
601 		s->start = m->start;
602 		s->end = m->end;
603 		s->channel = NULL;
604 		s->speed = 0;
605 		s->b16 = 0;
606 		s->stereo = 0;
607 		s->running = 0;
608 		s->ismaster = 0;
609 		s->vol = m->vol;
610 		s->buf = m->buf;
611 		s->fxrt1 = m->fxrt1;
612 		s->fxrt2 = m->fxrt2;
613 		s->slave = NULL;
614 	}
615 	return 0;
616 }
617 
618 static void
619 emu_vsetup(struct sc_pchinfo *ch)
620 {
621 	struct emu_voice *v = ch->master;
622 
623 	if (ch->fmt) {
624 		v->b16 = (ch->fmt & AFMT_16BIT) ? 1 : 0;
625 		v->stereo = (AFMT_CHANNEL(ch->fmt) > 1) ? 1 : 0;
626 		if (v->slave != NULL) {
627 			v->slave->b16 = v->b16;
628 			v->slave->stereo = v->stereo;
629 		}
630 	}
631 	if (ch->spd) {
632 		v->speed = ch->spd;
633 		if (v->slave != NULL)
634 			v->slave->speed = v->speed;
635 	}
636 }
637 
638 static void
639 emu_vwrite(struct sc_info *sc, struct emu_voice *v)
640 {
641 	int s;
642 	int l, r, x, y;
643 	u_int32_t sa, ea, start, val, silent_page;
644 
645 	s = (v->stereo ? 1 : 0) + (v->b16 ? 1 : 0);
646 
647 	sa = v->start >> s;
648 	ea = v->end >> s;
649 
650 	l = r = x = y = v->vol;
651 	if (v->stereo) {
652 		l = v->ismaster ? l : 0;
653 		r = v->ismaster ? 0 : r;
654 	}
655 
656 	emu_wrptr(sc, v->vnum, EMU_CHAN_CPF, v->stereo ? EMU_CHAN_CPF_STEREO_MASK : 0);
657 	val = v->stereo ? 28 : 30;
658 	val *= v->b16 ? 1 : 2;
659 	start = sa + val;
660 
661 	if (sc->audigy) {
662 		emu_wrptr(sc, v->vnum, EMU_A_CHAN_FXRT1, v->fxrt1);
663 		emu_wrptr(sc, v->vnum, EMU_A_CHAN_FXRT2, v->fxrt2);
664 		emu_wrptr(sc, v->vnum, EMU_A_CHAN_SENDAMOUNTS, 0);
665 	}
666 	else
667 		emu_wrptr(sc, v->vnum, EMU_CHAN_FXRT, v->fxrt1 << 16);
668 
669 	emu_wrptr(sc, v->vnum, EMU_CHAN_PTRX, (x << 8) | r);
670 	emu_wrptr(sc, v->vnum, EMU_CHAN_DSL, ea | (y << 24));
671 	emu_wrptr(sc, v->vnum, EMU_CHAN_PSST, sa | (l << 24));
672 	emu_wrptr(sc, v->vnum, EMU_CHAN_CCCA, start | (v->b16 ? 0 : EMU_CHAN_CCCA_8BITSELECT));
673 
674 	emu_wrptr(sc, v->vnum, EMU_CHAN_Z1, 0);
675 	emu_wrptr(sc, v->vnum, EMU_CHAN_Z2, 0);
676 
677 	silent_page = ((u_int32_t)(sc->mem.silent_page_addr) << 1)
678 	    | EMU_CHAN_MAP_PTI_MASK;
679 	emu_wrptr(sc, v->vnum, EMU_CHAN_MAPA, silent_page);
680 	emu_wrptr(sc, v->vnum, EMU_CHAN_MAPB, silent_page);
681 
682 	emu_wrptr(sc, v->vnum, EMU_CHAN_CVCF, EMU_CHAN_CVCF_CURRFILTER_MASK);
683 	emu_wrptr(sc, v->vnum, EMU_CHAN_VTFT, EMU_CHAN_VTFT_FILTERTARGET_MASK);
684 	emu_wrptr(sc, v->vnum, EMU_CHAN_ATKHLDM, 0);
685 	emu_wrptr(sc, v->vnum, EMU_CHAN_DCYSUSM, EMU_CHAN_DCYSUSM_DECAYTIME_MASK);
686 	emu_wrptr(sc, v->vnum, EMU_CHAN_LFOVAL1, 0x8000);
687 	emu_wrptr(sc, v->vnum, EMU_CHAN_LFOVAL2, 0x8000);
688 	emu_wrptr(sc, v->vnum, EMU_CHAN_FMMOD, 0);
689 	emu_wrptr(sc, v->vnum, EMU_CHAN_TREMFRQ, 0);
690 	emu_wrptr(sc, v->vnum, EMU_CHAN_FM2FRQ2, 0);
691 	emu_wrptr(sc, v->vnum, EMU_CHAN_ENVVAL, 0x8000);
692 
693 	emu_wrptr(sc, v->vnum, EMU_CHAN_ATKHLDV,
694 	    EMU_CHAN_ATKHLDV_HOLDTIME_MASK | EMU_CHAN_ATKHLDV_ATTACKTIME_MASK);
695 	emu_wrptr(sc, v->vnum, EMU_CHAN_ENVVOL, 0x8000);
696 
697 	emu_wrptr(sc, v->vnum, EMU_CHAN_PEFE_FILTERAMOUNT, 0x7f);
698 	emu_wrptr(sc, v->vnum, EMU_CHAN_PEFE_PITCHAMOUNT, 0);
699 
700 	if (v->slave != NULL)
701 		emu_vwrite(sc, v->slave);
702 }
703 
704 static void
705 emu_vtrigger(struct sc_info *sc, struct emu_voice *v, int go)
706 {
707 	u_int32_t pitch_target, initial_pitch;
708 	u_int32_t cra, cs, ccis;
709 	u_int32_t sample, i;
710 
711 	if (go) {
712 		cra = 64;
713 		cs = v->stereo ? 4 : 2;
714 		ccis = v->stereo ? 28 : 30;
715 		ccis *= v->b16 ? 1 : 2;
716 		sample = v->b16 ? 0x00000000 : 0x80808080;
717 
718 		for (i = 0; i < cs; i++)
719 			emu_wrptr(sc, v->vnum, EMU_CHAN_CD0 + i, sample);
720 		emu_wrptr(sc, v->vnum, EMU_CHAN_CCR_CACHEINVALIDSIZE, 0);
721 		emu_wrptr(sc, v->vnum, EMU_CHAN_CCR_READADDRESS, cra);
722 		emu_wrptr(sc, v->vnum, EMU_CHAN_CCR_CACHEINVALIDSIZE, ccis);
723 
724 		emu_wrptr(sc, v->vnum, EMU_CHAN_IFATN, 0xff00);
725 		emu_wrptr(sc, v->vnum, EMU_CHAN_VTFT, 0xffffffff);
726 		emu_wrptr(sc, v->vnum, EMU_CHAN_CVCF, 0xffffffff);
727 		emu_wrptr(sc, v->vnum, EMU_CHAN_DCYSUSV, 0x00007f7f);
728 		emu_enastop(sc, v->vnum, 0);
729 
730 		pitch_target = emu_rate_to_linearpitch(v->speed);
731 		initial_pitch = emu_rate_to_pitch(v->speed) >> 8;
732 		emu_wrptr(sc, v->vnum, EMU_CHAN_PTRX_PITCHTARGET, pitch_target);
733 		emu_wrptr(sc, v->vnum, EMU_CHAN_CPF_PITCH, pitch_target);
734 		emu_wrptr(sc, v->vnum, EMU_CHAN_IP, initial_pitch);
735 	} else {
736 		emu_wrptr(sc, v->vnum, EMU_CHAN_PTRX_PITCHTARGET, 0);
737 		emu_wrptr(sc, v->vnum, EMU_CHAN_CPF_PITCH, 0);
738 		emu_wrptr(sc, v->vnum, EMU_CHAN_IFATN, 0xffff);
739 		emu_wrptr(sc, v->vnum, EMU_CHAN_VTFT, 0x0000ffff);
740 		emu_wrptr(sc, v->vnum, EMU_CHAN_CVCF, 0x0000ffff);
741 		emu_wrptr(sc, v->vnum, EMU_CHAN_IP, 0);
742 		emu_enastop(sc, v->vnum, 1);
743 	}
744 	if (v->slave != NULL)
745 		emu_vtrigger(sc, v->slave, go);
746 }
747 
748 static int
749 emu_vpos(struct sc_info *sc, struct emu_voice *v)
750 {
751 	int s, ptr;
752 
753 	s = (v->b16 ? 1 : 0) + (v->stereo ? 1 : 0);
754 	ptr = (emu_rdptr(sc, v->vnum, EMU_CHAN_CCCA_CURRADDR) - (v->start >> s)) << s;
755 	return ptr & ~0x0000001f;
756 }
757 
758 #ifdef EMUDEBUG
759 static void
760 emu_vdump(struct sc_info *sc, struct emu_voice *v)
761 {
762 	char *regname[] = {
763 		"cpf", "ptrx", "cvcf", "vtft", "z2", "z1", "psst", "dsl",
764 		"ccca", "ccr", "clp", "fxrt", "mapa", "mapb", NULL, NULL,
765 		"envvol", "atkhldv", "dcysusv", "lfoval1",
766 		"envval", "atkhldm", "dcysusm", "lfoval2",
767 		"ip", "ifatn", "pefe", "fmmod", "tremfrq", "fmfrq2",
768 		"tempenv"
769 	};
770 	char *regname2[] = {
771 		"mudata1", "mustat1", "mudata2", "mustat2",
772 		"fxwc1", "fxwc2", "spdrate", NULL, NULL,
773 		NULL, NULL, NULL, "fxrt2", "sndamnt", "fxrt1",
774 		NULL, NULL
775 	};
776 	int i, x;
777 
778 	printf("voice number %d\n", v->vnum);
779 	for (i = 0, x = 0; i <= 0x1e; i++) {
780 		if (regname[i] == NULL)
781 			continue;
782 		printf("%s\t[%08x]", regname[i], emu_rdptr(sc, v->vnum, i));
783 		printf("%s", (x == 2) ? "\n" : "\t");
784 		x++;
785 		if (x > 2)
786 			x = 0;
787 	}
788 
789 	/* Print out audigy extra registers */
790 	if (sc->audigy) {
791 		for (i = 0; i <= 0xe; i++) {
792 			if (regname2[i] == NULL)
793 				continue;
794 			printf("%s\t[%08x]", regname2[i],
795 			    emu_rdptr(sc, v->vnum, i + 0x70));
796 			printf("%s", (x == 2)? "\n" : "\t");
797 			x++;
798 			if (x > 2)
799 				x = 0;
800 		}
801 	}
802 	printf("\n\n");
803 }
804 #endif
805 
806 /* channel interface */
807 static void *
808 emupchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
809     struct pcm_channel *c, int dir)
810 {
811 	struct sc_info *sc = devinfo;
812 	struct sc_pchinfo *ch;
813 	void *r;
814 
815 	KASSERT(dir == PCMDIR_PLAY, ("emupchan_init: bad direction"));
816 	ch = &sc->pch[sc->pnum++];
817 	ch->buffer = b;
818 	ch->parent = sc;
819 	ch->channel = c;
820 	ch->blksz = sc->bufsz / 2;
821 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
822 	ch->spd = 8000;
823 	snd_mtxlock(sc->lock);
824 	ch->master = emu_valloc(sc);
825 	ch->slave = emu_valloc(sc);
826 	snd_mtxunlock(sc->lock);
827 	r = (emu_vinit(sc, ch->master, ch->slave, sc->bufsz, ch->buffer))
828 	    ? NULL : ch;
829 
830 	return r;
831 }
832 
833 static int
834 emupchan_free(kobj_t obj, void *data)
835 {
836 	struct sc_pchinfo *ch = data;
837 	struct sc_info *sc = ch->parent;
838 	int r;
839 
840 	snd_mtxlock(sc->lock);
841 	r = emu_memfree(sc, sndbuf_getbuf(ch->buffer));
842 	snd_mtxunlock(sc->lock);
843 
844 	return r;
845 }
846 
847 static int
848 emupchan_setformat(kobj_t obj, void *data, u_int32_t format)
849 {
850 	struct sc_pchinfo *ch = data;
851 
852 	ch->fmt = format;
853 	return 0;
854 }
855 
856 static u_int32_t
857 emupchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
858 {
859 	struct sc_pchinfo *ch = data;
860 
861 	ch->spd = speed;
862 	return ch->spd;
863 }
864 
865 static u_int32_t
866 emupchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
867 {
868 	struct sc_pchinfo *ch = data;
869 	struct sc_info *sc = ch->parent;
870 
871 	ch->blksz = blocksize;
872 	snd_mtxlock(sc->lock);
873 	emu_settimer(sc);
874 	snd_mtxunlock(sc->lock);
875 	return blocksize;
876 }
877 
878 static int
879 emupchan_trigger(kobj_t obj, void *data, int go)
880 {
881 	struct sc_pchinfo *ch = data;
882 	struct sc_info *sc = ch->parent;
883 
884 	if (!PCMTRIG_COMMON(go))
885 		return 0;
886 
887 	snd_mtxlock(sc->lock);
888 	if (go == PCMTRIG_START) {
889 		emu_vsetup(ch);
890 		emu_vwrite(sc, ch->master);
891 		emu_settimer(sc);
892 		emu_enatimer(sc, 1);
893 #ifdef EMUDEBUG
894 		printf("start [%d bit, %s, %d hz]\n",
895 			ch->master->b16 ? 16 : 8,
896 			ch->master->stereo ? "stereo" : "mono",
897 			ch->master->speed);
898 		emu_vdump(sc, ch->master);
899 		emu_vdump(sc, ch->slave);
900 #endif
901 	}
902 	ch->run = (go == PCMTRIG_START) ? 1 : 0;
903 	emu_vtrigger(sc, ch->master, ch->run);
904 	snd_mtxunlock(sc->lock);
905 	return 0;
906 }
907 
908 static u_int32_t
909 emupchan_getptr(kobj_t obj, void *data)
910 {
911 	struct sc_pchinfo *ch = data;
912 	struct sc_info *sc = ch->parent;
913 	int r;
914 
915 	snd_mtxlock(sc->lock);
916 	r = emu_vpos(sc, ch->master);
917 	snd_mtxunlock(sc->lock);
918 
919 	return r;
920 }
921 
922 static struct pcmchan_caps *
923 emupchan_getcaps(kobj_t obj, void *data)
924 {
925 	return &emu_playcaps;
926 }
927 
928 static kobj_method_t emupchan_methods[] = {
929 	KOBJMETHOD(channel_init,		emupchan_init),
930 	KOBJMETHOD(channel_free,		emupchan_free),
931 	KOBJMETHOD(channel_setformat,		emupchan_setformat),
932 	KOBJMETHOD(channel_setspeed,		emupchan_setspeed),
933 	KOBJMETHOD(channel_setblocksize,	emupchan_setblocksize),
934 	KOBJMETHOD(channel_trigger,		emupchan_trigger),
935 	KOBJMETHOD(channel_getptr,		emupchan_getptr),
936 	KOBJMETHOD(channel_getcaps,		emupchan_getcaps),
937 	KOBJMETHOD_END
938 };
939 CHANNEL_DECLARE(emupchan);
940 
941 /* channel interface */
942 static void *
943 emurchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
944     struct pcm_channel *c, int dir)
945 {
946 	struct sc_info *sc = devinfo;
947 	struct sc_rchinfo *ch;
948 
949 	KASSERT(dir == PCMDIR_REC, ("emurchan_init: bad direction"));
950 	ch = &sc->rch[sc->rnum];
951 	ch->buffer = b;
952 	ch->parent = sc;
953 	ch->channel = c;
954 	ch->blksz = sc->bufsz / 2;
955 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
956 	ch->spd = 8000;
957 	ch->num = sc->rnum;
958 	switch(sc->rnum) {
959 	case 0:
960 		ch->idxreg = sc->audigy ? EMU_A_ADCIDX : EMU_ADCIDX;
961 		ch->basereg = EMU_ADCBA;
962 		ch->sizereg = EMU_ADCBS;
963 		ch->setupreg = EMU_ADCCR;
964 		ch->irqmask = EMU_INTE_ADCBUFENABLE;
965 		break;
966 
967 	case 1:
968 		ch->idxreg = EMU_FXIDX;
969 		ch->basereg = EMU_FXBA;
970 		ch->sizereg = EMU_FXBS;
971 		ch->setupreg = EMU_FXWC;
972 		ch->irqmask = EMU_INTE_EFXBUFENABLE;
973 		break;
974 
975 	case 2:
976 		ch->idxreg = EMU_MICIDX;
977 		ch->basereg = EMU_MICBA;
978 		ch->sizereg = EMU_MICBS;
979 		ch->setupreg = 0;
980 		ch->irqmask = EMU_INTE_MICBUFENABLE;
981 		break;
982 	}
983 	sc->rnum++;
984 	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsz) != 0)
985 		return NULL;
986 	else {
987 		snd_mtxlock(sc->lock);
988 		emu_wrptr(sc, 0, ch->basereg, sndbuf_getbufaddr(ch->buffer));
989 		emu_wrptr(sc, 0, ch->sizereg, 0); /* off */
990 		snd_mtxunlock(sc->lock);
991 		return ch;
992 	}
993 }
994 
995 static int
996 emurchan_setformat(kobj_t obj, void *data, u_int32_t format)
997 {
998 	struct sc_rchinfo *ch = data;
999 
1000 	ch->fmt = format;
1001 	return 0;
1002 }
1003 
1004 static u_int32_t
1005 emurchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
1006 {
1007 	struct sc_rchinfo *ch = data;
1008 
1009 	if (ch->num == 0) {
1010 		if (ch->parent->audigy)
1011 			speed = audigy_adcspeed[audigy_recval(speed)];
1012 		else
1013 			speed = adcspeed[emu_recval(speed)];
1014 	}
1015 	if (ch->num == 1)
1016 		speed = 48000;
1017 	if (ch->num == 2)
1018 		speed = 8000;
1019 	ch->spd = speed;
1020 	return ch->spd;
1021 }
1022 
1023 static u_int32_t
1024 emurchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
1025 {
1026 	struct sc_rchinfo *ch = data;
1027 	struct sc_info *sc = ch->parent;
1028 
1029 	ch->blksz = blocksize;
1030 	snd_mtxlock(sc->lock);
1031 	emu_settimer(sc);
1032 	snd_mtxunlock(sc->lock);
1033 	return blocksize;
1034 }
1035 
1036 /* semantic note: must start at beginning of buffer */
1037 static int
1038 emurchan_trigger(kobj_t obj, void *data, int go)
1039 {
1040 	struct sc_rchinfo *ch = data;
1041 	struct sc_info *sc = ch->parent;
1042 	u_int32_t val, sz;
1043 
1044 	if (!PCMTRIG_COMMON(go))
1045 		return 0;
1046 
1047 	switch(sc->bufsz) {
1048 	case 4096:
1049 		sz = EMU_RECBS_BUFSIZE_4096;
1050 		break;
1051 
1052 	case 8192:
1053 		sz = EMU_RECBS_BUFSIZE_8192;
1054 		break;
1055 
1056 	case 16384:
1057 		sz = EMU_RECBS_BUFSIZE_16384;
1058 		break;
1059 
1060 	case 32768:
1061 		sz = EMU_RECBS_BUFSIZE_32768;
1062 		break;
1063 
1064 	case 65536:
1065 		sz = EMU_RECBS_BUFSIZE_65536;
1066 		break;
1067 
1068 	default:
1069 		sz = EMU_RECBS_BUFSIZE_4096;
1070 	}
1071 
1072 	snd_mtxlock(sc->lock);
1073 	switch(go) {
1074 	case PCMTRIG_START:
1075 		ch->run = 1;
1076 		emu_wrptr(sc, 0, ch->sizereg, sz);
1077 		if (ch->num == 0) {
1078 			if (sc->audigy) {
1079 				val = EMU_A_ADCCR_LCHANENABLE;
1080 				if (AFMT_CHANNEL(ch->fmt) > 1)
1081 					val |= EMU_A_ADCCR_RCHANENABLE;
1082 				val |= audigy_recval(ch->spd);
1083 			} else {
1084 				val = EMU_ADCCR_LCHANENABLE;
1085 				if (AFMT_CHANNEL(ch->fmt) > 1)
1086 					val |= EMU_ADCCR_RCHANENABLE;
1087 				val |= emu_recval(ch->spd);
1088 			}
1089 
1090 			emu_wrptr(sc, 0, ch->setupreg, 0);
1091 			emu_wrptr(sc, 0, ch->setupreg, val);
1092 		}
1093 		val = emu_rd(sc, EMU_INTE, 4);
1094 		val |= ch->irqmask;
1095 		emu_wr(sc, EMU_INTE, val, 4);
1096 		break;
1097 
1098 	case PCMTRIG_STOP:
1099 	case PCMTRIG_ABORT:
1100 		ch->run = 0;
1101 		emu_wrptr(sc, 0, ch->sizereg, 0);
1102 		if (ch->setupreg)
1103 			emu_wrptr(sc, 0, ch->setupreg, 0);
1104 		val = emu_rd(sc, EMU_INTE, 4);
1105 		val &= ~ch->irqmask;
1106 		emu_wr(sc, EMU_INTE, val, 4);
1107 		break;
1108 
1109 	case PCMTRIG_EMLDMAWR:
1110 	case PCMTRIG_EMLDMARD:
1111 	default:
1112 		break;
1113 	}
1114 	snd_mtxunlock(sc->lock);
1115 
1116 	return 0;
1117 }
1118 
1119 static u_int32_t
1120 emurchan_getptr(kobj_t obj, void *data)
1121 {
1122 	struct sc_rchinfo *ch = data;
1123 	struct sc_info *sc = ch->parent;
1124 	int r;
1125 
1126 	snd_mtxlock(sc->lock);
1127 	r = emu_rdptr(sc, 0, ch->idxreg) & 0x0000ffff;
1128 	snd_mtxunlock(sc->lock);
1129 
1130 	return r;
1131 }
1132 
1133 static struct pcmchan_caps *
1134 emurchan_getcaps(kobj_t obj, void *data)
1135 {
1136 	struct sc_rchinfo *ch = data;
1137 
1138 	return &emu_reccaps[ch->num];
1139 }
1140 
1141 static kobj_method_t emurchan_methods[] = {
1142 	KOBJMETHOD(channel_init,		emurchan_init),
1143 	KOBJMETHOD(channel_setformat,		emurchan_setformat),
1144 	KOBJMETHOD(channel_setspeed,		emurchan_setspeed),
1145 	KOBJMETHOD(channel_setblocksize,	emurchan_setblocksize),
1146 	KOBJMETHOD(channel_trigger,		emurchan_trigger),
1147 	KOBJMETHOD(channel_getptr,		emurchan_getptr),
1148 	KOBJMETHOD(channel_getcaps,		emurchan_getcaps),
1149 	KOBJMETHOD_END
1150 };
1151 CHANNEL_DECLARE(emurchan);
1152 
1153 static unsigned char
1154 emu_mread(struct mpu401 *arg, void *sc, int reg)
1155 {
1156 	unsigned int d;
1157 
1158 	d = emu_rd((struct sc_info *)sc, 0x18 + reg, 1);
1159 	return d;
1160 }
1161 
1162 static void
1163 emu_mwrite(struct mpu401 *arg, void *sc, int reg, unsigned char b)
1164 {
1165 
1166 	emu_wr((struct sc_info *)sc, 0x18 + reg, b, 1);
1167 }
1168 
1169 static int
1170 emu_muninit(struct mpu401 *arg, void *cookie)
1171 {
1172 	struct sc_info *sc = cookie;
1173 
1174 	snd_mtxlock(sc->lock);
1175 	sc->mpu_intr = NULL;
1176 	snd_mtxunlock(sc->lock);
1177 
1178 	return 0;
1179 }
1180 
1181 static kobj_method_t emu_mpu_methods[] = {
1182     	KOBJMETHOD(mpufoi_read,		emu_mread),
1183     	KOBJMETHOD(mpufoi_write,	emu_mwrite),
1184     	KOBJMETHOD(mpufoi_uninit,	emu_muninit),
1185 	KOBJMETHOD_END
1186 };
1187 
1188 static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0);
1189 
1190 static void
1191 emu_intr2(void *p)
1192 {
1193 	struct sc_info *sc = (struct sc_info *)p;
1194 
1195 	if (sc->mpu_intr)
1196 	    (sc->mpu_intr)(sc->mpu);
1197 }
1198 
1199 static void
1200 emu_midiattach(struct sc_info *sc)
1201 {
1202 	int i;
1203 
1204 	i = emu_rd(sc, EMU_INTE, 4);
1205 	i |= EMU_INTE_MIDIRXENABLE;
1206 	emu_wr(sc, EMU_INTE, i, 4);
1207 
1208 	sc->mpu = mpu401_init(&emu_mpu_class, sc, emu_intr2, &sc->mpu_intr);
1209 }
1210 /* -------------------------------------------------------------------- */
1211 /* The interrupt handler */
1212 
1213 static void
1214 emu_intr(void *data)
1215 {
1216 	struct sc_info *sc = data;
1217 	u_int32_t stat, ack, i, x;
1218 
1219 	snd_mtxlock(sc->lock);
1220 	while (1) {
1221 		stat = emu_rd(sc, EMU_IPR, 4);
1222 		if (stat == 0)
1223 			break;
1224 		ack = 0;
1225 
1226 		/* process irq */
1227 		if (stat & EMU_IPR_INTERVALTIMER)
1228 			ack |= EMU_IPR_INTERVALTIMER;
1229 
1230 		if (stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL))
1231 			ack |= stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL);
1232 
1233 		if (stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL))
1234 			ack |= stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL);
1235 
1236 		if (stat & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL))
1237 			ack |= stat & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL);
1238 
1239 		if (stat & EMU_PCIERROR) {
1240 			ack |= EMU_PCIERROR;
1241 			device_printf(sc->dev, "pci error\n");
1242 			/* we still get an nmi with ecc ram even if we ack this */
1243 		}
1244 		if (stat & EMU_IPR_RATETRCHANGE) {
1245 			ack |= EMU_IPR_RATETRCHANGE;
1246 #ifdef EMUDEBUG
1247 			device_printf(sc->dev,
1248 			    "sample rate tracker lock status change\n");
1249 #endif
1250 		}
1251 
1252 		if (stat & EMU_IPR_MIDIRECVBUFE) {
1253 			if (sc->mpu_intr) {
1254 				(sc->mpu_intr)(sc->mpu);
1255 				ack |= EMU_IPR_MIDIRECVBUFE | EMU_IPR_MIDITRANSBUFE;
1256 			}
1257 		}
1258 		if (stat & ~ack)
1259 			device_printf(sc->dev, "dodgy irq: %x (harmless)\n",
1260 			    stat & ~ack);
1261 
1262 		emu_wr(sc, EMU_IPR, stat, 4);
1263 
1264 		if (ack) {
1265 			snd_mtxunlock(sc->lock);
1266 
1267 			if (ack & EMU_IPR_INTERVALTIMER) {
1268 				x = 0;
1269 				for (i = 0; i < sc->nchans; i++) {
1270 					if (sc->pch[i].run) {
1271 						x = 1;
1272 						chn_intr(sc->pch[i].channel);
1273 					}
1274 				}
1275 				if (x == 0)
1276 					emu_enatimer(sc, 0);
1277 			}
1278 
1279 			if (ack & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL)) {
1280 				if (sc->rch[0].channel)
1281 					chn_intr(sc->rch[0].channel);
1282 			}
1283 			if (ack & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL)) {
1284 				if (sc->rch[1].channel)
1285 					chn_intr(sc->rch[1].channel);
1286 			}
1287 			if (ack & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL)) {
1288 				if (sc->rch[2].channel)
1289 					chn_intr(sc->rch[2].channel);
1290 			}
1291 
1292 			snd_mtxlock(sc->lock);
1293 		}
1294 	}
1295 	snd_mtxunlock(sc->lock);
1296 }
1297 
1298 /* -------------------------------------------------------------------- */
1299 
1300 static void
1301 emu_setmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1302 {
1303 	bus_addr_t *phys = arg;
1304 
1305 	*phys = error ? 0 : (bus_addr_t)segs->ds_addr;
1306 
1307 	if (bootverbose) {
1308 		printf("emu: setmap (%lx, %lx), nseg=%d, error=%d\n",
1309 		    (unsigned long)segs->ds_addr, (unsigned long)segs->ds_len,
1310 		    nseg, error);
1311 	}
1312 }
1313 
1314 static void *
1315 emu_malloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr,
1316     bus_dmamap_t *map)
1317 {
1318 	void *buf;
1319 
1320 	*addr = 0;
1321 	if (bus_dmamem_alloc(sc->parent_dmat, &buf, BUS_DMA_NOWAIT, map))
1322 		return NULL;
1323 	if (bus_dmamap_load(sc->parent_dmat, *map, buf, sz, emu_setmap, addr,
1324 	    BUS_DMA_NOWAIT) || !*addr) {
1325 		bus_dmamem_free(sc->parent_dmat, buf, *map);
1326 		return NULL;
1327 	}
1328 	return buf;
1329 }
1330 
1331 static void
1332 emu_free(struct sc_info *sc, void *buf, bus_dmamap_t map)
1333 {
1334 	bus_dmamap_unload(sc->parent_dmat, map);
1335 	bus_dmamem_free(sc->parent_dmat, buf, map);
1336 }
1337 
1338 static void *
1339 emu_memalloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr)
1340 {
1341 	u_int32_t blksz, start, idx, ofs, tmp, found;
1342 	struct emu_mem *mem = &sc->mem;
1343 	struct emu_memblk *blk;
1344 	void *buf;
1345 
1346 	blksz = sz / EMUPAGESIZE;
1347 	if (sz > (blksz * EMUPAGESIZE))
1348 		blksz++;
1349 	/* find a free block in the bitmap */
1350 	found = 0;
1351 	start = 1;
1352 	while (!found && start + blksz < EMUMAXPAGES) {
1353 		found = 1;
1354 		for (idx = start; idx < start + blksz; idx++)
1355 			if (mem->bmap[idx >> 3] & (1 << (idx & 7)))
1356 				found = 0;
1357 		if (!found)
1358 			start++;
1359 	}
1360 	if (!found)
1361 		return NULL;
1362 	blk = malloc(sizeof(*blk), M_DEVBUF, M_NOWAIT);
1363 	if (blk == NULL)
1364 		return NULL;
1365 	buf = emu_malloc(sc, sz, &blk->buf_addr, &blk->buf_map);
1366 	*addr = blk->buf_addr;
1367 	if (buf == NULL) {
1368 		free(blk, M_DEVBUF);
1369 		return NULL;
1370 	}
1371 	blk->buf = buf;
1372 	blk->pte_start = start;
1373 	blk->pte_size = blksz;
1374 #ifdef EMUDEBUG
1375 	printf("buf %p, pte_start %d, pte_size %d\n", blk->buf,
1376 	    blk->pte_start, blk->pte_size);
1377 #endif
1378 	ofs = 0;
1379 	for (idx = start; idx < start + blksz; idx++) {
1380 		mem->bmap[idx >> 3] |= 1 << (idx & 7);
1381 		tmp = (uint32_t)(blk->buf_addr + ofs);
1382 #ifdef EMUDEBUG
1383 		printf("pte[%d] -> %x phys, %x virt\n", idx, tmp,
1384 		    ((u_int32_t)buf) + ofs);
1385 #endif
1386 		mem->ptb_pages[idx] = (tmp << 1) | idx;
1387 		ofs += EMUPAGESIZE;
1388 	}
1389 	SLIST_INSERT_HEAD(&mem->blocks, blk, link);
1390 	return buf;
1391 }
1392 
1393 static int
1394 emu_memfree(struct sc_info *sc, void *buf)
1395 {
1396 	u_int32_t idx, tmp;
1397 	struct emu_mem *mem = &sc->mem;
1398 	struct emu_memblk *blk, *i;
1399 
1400 	blk = NULL;
1401 	SLIST_FOREACH(i, &mem->blocks, link) {
1402 		if (i->buf == buf)
1403 			blk = i;
1404 	}
1405 	if (blk == NULL)
1406 		return EINVAL;
1407 	SLIST_REMOVE(&mem->blocks, blk, emu_memblk, link);
1408 	emu_free(sc, buf, blk->buf_map);
1409 	tmp = (u_int32_t)(sc->mem.silent_page_addr) << 1;
1410 	for (idx = blk->pte_start; idx < blk->pte_start + blk->pte_size; idx++) {
1411 		mem->bmap[idx >> 3] &= ~(1 << (idx & 7));
1412 		mem->ptb_pages[idx] = tmp | idx;
1413 	}
1414 	free(blk, M_DEVBUF);
1415 	return 0;
1416 }
1417 
1418 static int
1419 emu_memstart(struct sc_info *sc, void *buf)
1420 {
1421 	struct emu_mem *mem = &sc->mem;
1422 	struct emu_memblk *blk, *i;
1423 
1424 	blk = NULL;
1425 	SLIST_FOREACH(i, &mem->blocks, link) {
1426 		if (i->buf == buf)
1427 			blk = i;
1428 	}
1429 	if (blk == NULL)
1430 		return -EINVAL;
1431 	return blk->pte_start;
1432 }
1433 
1434 static void
1435 emu_addefxop(struct sc_info *sc, int op, int z, int w, int x, int y,
1436     u_int32_t *pc)
1437 {
1438 	emu_wrefx(sc, (*pc) * 2, (x << 10) | y);
1439 	emu_wrefx(sc, (*pc) * 2 + 1, (op << 20) | (z << 10) | w);
1440 	(*pc)++;
1441 }
1442 
1443 static void
1444 audigy_addefxop(struct sc_info *sc, int op, int z, int w, int x, int y,
1445     u_int32_t *pc)
1446 {
1447 	emu_wrefx(sc, (*pc) * 2, (x << 12) | y);
1448 	emu_wrefx(sc, (*pc) * 2 + 1, (op << 24) | (z << 12) | w);
1449 	(*pc)++;
1450 }
1451 
1452 static void
1453 audigy_initefx(struct sc_info *sc)
1454 {
1455 	int i;
1456 	u_int32_t pc = 0;
1457 
1458 	/* skip 0, 0, -1, 0 - NOPs */
1459 	for (i = 0; i < 512; i++)
1460 		audigy_addefxop(sc, 0x0f, 0x0c0, 0x0c0, 0x0cf, 0x0c0, &pc);
1461 
1462 	for (i = 0; i < 512; i++)
1463 		emu_wrptr(sc, 0, EMU_A_FXGPREGBASE + i, 0x0);
1464 
1465 	pc = 16;
1466 
1467 	/* stop fx processor */
1468 	emu_wrptr(sc, 0, EMU_A_DBG, EMU_A_DBG_SINGLE_STEP);
1469 
1470 	/* Audigy 2 (EMU10K2) DSP Registers:
1471 	   FX Bus
1472 		0x000-0x00f : 16 registers (?)
1473 	   Input
1474 		0x040/0x041 : AC97 Codec (l/r)
1475 		0x042/0x043 : ADC, S/PDIF (l/r)
1476 		0x044/0x045 : Optical S/PDIF in (l/r)
1477 		0x046/0x047 : ?
1478 		0x048/0x049 : Line/Mic 2 (l/r)
1479 		0x04a/0x04b : RCA S/PDIF (l/r)
1480 		0x04c/0x04d : Aux 2 (l/r)
1481 	   Output
1482 		0x060/0x061 : Digital Front (l/r)
1483 		0x062/0x063 : Digital Center/LFE
1484 		0x064/0x065 : AudigyDrive Heaphone (l/r)
1485 		0x066/0x067 : Digital Rear (l/r)
1486 		0x068/0x069 : Analog Front (l/r)
1487 		0x06a/0x06b : Analog Center/LFE
1488 		0x06c/0x06d : ?
1489 		0x06e/0x06f : Analog Rear (l/r)
1490 		0x070/0x071 : AC97 Output (l/r)
1491 		0x072/0x073 : ?
1492 		0x074/0x075 : ?
1493 		0x076/0x077 : ADC Recording Buffer (l/r)
1494 	   Constants
1495 		0x0c0 - 0x0c4 = 0 - 4
1496 		0x0c5 = 0x8, 0x0c6 = 0x10, 0x0c7 = 0x20
1497 		0x0c8 = 0x100, 0x0c9 = 0x10000, 0x0ca = 0x80000
1498 		0x0cb = 0x10000000, 0x0cc = 0x20000000, 0x0cd = 0x40000000
1499 		0x0ce = 0x80000000, 0x0cf = 0x7fffffff, 0x0d0 = 0xffffffff
1500 		0x0d1 = 0xfffffffe, 0x0d2 = 0xc0000000, 0x0d3 = 0x41fbbcdc
1501 		0x0d4 = 0x5a7ef9db, 0x0d5 = 0x00100000, 0x0dc = 0x00000001 (?)
1502 	   Temporary Values
1503 		0x0d6 : Accumulator (?)
1504 		0x0d7 : Condition Register
1505 		0x0d8 : Noise source
1506 		0x0d9 : Noise source
1507 	   Tank Memory Data Registers
1508 		0x200 - 0x2ff
1509 	   Tank Memory Address Registers
1510 		0x300 - 0x3ff
1511 	   General Purpose Registers
1512 		0x400 - 0x5ff
1513 	 */
1514 
1515 	/* AC97Output[l/r] = FXBus PCM[l/r] */
1516 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AC97_L), A_C_00000000,
1517 			A_C_00000000, A_FXBUS(FXBUS_PCM_LEFT), &pc);
1518 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AC97_R), A_C_00000000,
1519 			A_C_00000000, A_FXBUS(FXBUS_PCM_RIGHT), &pc);
1520 
1521 	/* GPR[0/1] = RCA S/PDIF[l/r] -- Master volume */
1522 	audigy_addefxop(sc, iACC3, A_GPR(0), A_C_00000000,
1523 			A_C_00000000, A_EXTIN(EXTIN_COAX_SPDIF_L), &pc);
1524 	audigy_addefxop(sc, iACC3, A_GPR(1), A_C_00000000,
1525 			A_C_00000000, A_EXTIN(EXTIN_COAX_SPDIF_R), &pc);
1526 
1527 	/* GPR[2] = GPR[0] (Left) / 2 + GPR[1] (Right) / 2 -- Central volume */
1528 	audigy_addefxop(sc, iINTERP, A_GPR(2), A_GPR(1),
1529 			A_C_40000000, A_GPR(0), &pc);
1530 
1531 	/* Headphones[l/r] = GPR[0/1] */
1532 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_HEADPHONE_L),
1533 			A_C_00000000, A_C_00000000, A_GPR(0), &pc);
1534 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_HEADPHONE_R),
1535 			A_C_00000000, A_C_00000000, A_GPR(1), &pc);
1536 
1537 	/* Analog Front[l/r] = GPR[0/1] */
1538 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AFRONT_L), A_C_00000000,
1539 			A_C_00000000, A_GPR(0), &pc);
1540 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AFRONT_R), A_C_00000000,
1541 			A_C_00000000, A_GPR(1), &pc);
1542 
1543 	/* Digital Front[l/r] = GPR[0/1] */
1544 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_FRONT_L), A_C_00000000,
1545 			A_C_00000000, A_GPR(0), &pc);
1546 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_FRONT_R), A_C_00000000,
1547 			A_C_00000000, A_GPR(1), &pc);
1548 
1549 	/* Center and Subwoofer configuration */
1550 	/* Analog Center = GPR[0] + GPR[2] */
1551 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ACENTER), A_C_00000000,
1552 			A_GPR(0), A_GPR(2), &pc);
1553 	/* Analog Sub = GPR[1] + GPR[2] */
1554 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ALFE), A_C_00000000,
1555 			A_GPR(1), A_GPR(2), &pc);
1556 
1557 	/* Digital Center = GPR[0] + GPR[2] */
1558 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_CENTER), A_C_00000000,
1559 			A_GPR(0), A_GPR(2), &pc);
1560 	/* Digital Sub = GPR[1] + GPR[2] */
1561 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_LFE), A_C_00000000,
1562 			A_GPR(1), A_GPR(2), &pc);
1563 
1564 #if 0
1565 	/* Analog Rear[l/r] = (GPR[0/1] * RearVolume[l/r]) >> 31 */
1566 	/*   RearVolume = GPR[0x10/0x11] (Will this ever be implemented?) */
1567 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_AREAR_L), A_C_00000000,
1568 			A_GPR(16), A_GPR(0), &pc);
1569 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_AREAR_R), A_C_00000000,
1570 			A_GPR(17), A_GPR(1), &pc);
1571 
1572 	/* Digital Rear[l/r] = (GPR[0/1] * RearVolume[l/r]) >> 31 */
1573 	/*   RearVolume = GPR[0x10/0x11] (Will this ever be implemented?) */
1574 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_REAR_L), A_C_00000000,
1575 			A_GPR(16), A_GPR(0), &pc);
1576 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_REAR_R), A_C_00000000,
1577 			A_GPR(17), A_GPR(1), &pc);
1578 #else
1579 	/* XXX This is just a copy to the channel, since we do not have
1580 	 *     a patch manager, it is useful for have another output enabled.
1581 	 */
1582 
1583 	/* Analog Rear[l/r] = GPR[0/1] */
1584 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AREAR_L), A_C_00000000,
1585 			A_C_00000000, A_GPR(0), &pc);
1586 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AREAR_R), A_C_00000000,
1587 			A_C_00000000, A_GPR(1), &pc);
1588 
1589 	/* Digital Rear[l/r] = GPR[0/1] */
1590 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_REAR_L), A_C_00000000,
1591 			A_C_00000000, A_GPR(0), &pc);
1592 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_REAR_R), A_C_00000000,
1593 			A_C_00000000, A_GPR(1), &pc);
1594 #endif
1595 
1596 	/* ADC Recording buffer[l/r] = AC97Input[l/r] */
1597 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ADC_CAP_L), A_C_00000000,
1598 			A_C_00000000, A_EXTIN(A_EXTIN_AC97_L), &pc);
1599 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ADC_CAP_R), A_C_00000000,
1600 			A_C_00000000, A_EXTIN(A_EXTIN_AC97_R), &pc);
1601 
1602 	/* resume normal operations */
1603 	emu_wrptr(sc, 0, EMU_A_DBG, 0);
1604 }
1605 
1606 static void
1607 emu_initefx(struct sc_info *sc)
1608 {
1609 	int i;
1610 	u_int32_t pc = 16;
1611 
1612 	/* acc3 0,0,0,0 - NOPs */
1613 	for (i = 0; i < 512; i++) {
1614 		emu_wrefx(sc, i * 2, 0x10040);
1615 		emu_wrefx(sc, i * 2 + 1, 0x610040);
1616 	}
1617 
1618 	for (i = 0; i < 256; i++)
1619 		emu_wrptr(sc, 0, EMU_FXGPREGBASE + i, 0);
1620 
1621 	/* FX-8010 DSP Registers:
1622 	   FX Bus
1623 	     0x000-0x00f : 16 registers
1624 	   Input
1625 	     0x010/0x011 : AC97 Codec (l/r)
1626 	     0x012/0x013 : ADC, S/PDIF (l/r)
1627 	     0x014/0x015 : Mic(left), Zoom (l/r)
1628 	     0x016/0x017 : TOS link in (l/r)
1629 	     0x018/0x019 : Line/Mic 1 (l/r)
1630 	     0x01a/0x01b : COAX S/PDIF (l/r)
1631 	     0x01c/0x01d : Line/Mic 2 (l/r)
1632 	   Output
1633 	     0x020/0x021 : AC97 Output (l/r)
1634 	     0x022/0x023 : TOS link out (l/r)
1635 	     0x024/0x025 : Center/LFE
1636 	     0x026/0x027 : LiveDrive Headphone (l/r)
1637 	     0x028/0x029 : Rear Channel (l/r)
1638 	     0x02a/0x02b : ADC Recording Buffer (l/r)
1639 	     0x02c       : Mic Recording Buffer
1640 	     0x031/0x032 : Analog Center/LFE
1641 	   Constants
1642 	     0x040 - 0x044 = 0 - 4
1643 	     0x045 = 0x8, 0x046 = 0x10, 0x047 = 0x20
1644 	     0x048 = 0x100, 0x049 = 0x10000, 0x04a = 0x80000
1645 	     0x04b = 0x10000000, 0x04c = 0x20000000, 0x04d = 0x40000000
1646 	     0x04e = 0x80000000, 0x04f = 0x7fffffff, 0x050 = 0xffffffff
1647 	     0x051 = 0xfffffffe, 0x052 = 0xc0000000, 0x053 = 0x41fbbcdc
1648 	     0x054 = 0x5a7ef9db, 0x055 = 0x00100000
1649 	   Temporary Values
1650 	     0x056 : Accumulator
1651 	     0x057 : Condition Register
1652 	     0x058 : Noise source
1653 	     0x059 : Noise source
1654 	     0x05a : IRQ Register
1655 	     0x05b : TRAM Delay Base Address Count
1656 	   General Purpose Registers
1657 	     0x100 - 0x1ff
1658 	   Tank Memory Data Registers
1659 	     0x200 - 0x2ff
1660 	   Tank Memory Address Registers
1661 	     0x300 - 0x3ff
1662 	     */
1663 
1664 	/* Routing - this will be configurable in later version */
1665 
1666 	/* GPR[0/1] = FX * 4 + SPDIF-in */
1667 	emu_addefxop(sc, iMACINT0, GPR(0), EXTIN(EXTIN_SPDIF_CD_L),
1668 			FXBUS(FXBUS_PCM_LEFT), C_00000004, &pc);
1669 	emu_addefxop(sc, iMACINT0, GPR(1), EXTIN(EXTIN_SPDIF_CD_R),
1670 			FXBUS(FXBUS_PCM_RIGHT), C_00000004, &pc);
1671 
1672 	/* GPR[0/1] += APS-input */
1673 	emu_addefxop(sc, iACC3, GPR(0), GPR(0), C_00000000,
1674 			sc->APS ? EXTIN(EXTIN_TOSLINK_L) : C_00000000, &pc);
1675 	emu_addefxop(sc, iACC3, GPR(1), GPR(1), C_00000000,
1676 			sc->APS ? EXTIN(EXTIN_TOSLINK_R) : C_00000000, &pc);
1677 
1678 	/* FrontOut (AC97) = GPR[0/1] */
1679 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_L), C_00000000,
1680 			C_00000000, GPR(0), &pc);
1681 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_R), C_00000000,
1682 			C_00000001, GPR(1), &pc);
1683 
1684 	/* GPR[2] = GPR[0] (Left) / 2 + GPR[1] (Right) / 2 -- Central volume */
1685 	emu_addefxop(sc, iINTERP, GPR(2), GPR(1), C_40000000, GPR(0), &pc);
1686 
1687 #if 0
1688 	/* RearOut = (GPR[0/1] * RearVolume) >> 31 */
1689 	/*   RearVolume = GPR[0x10/0x11] */
1690 	emu_addefxop(sc, iMAC0, EXTOUT(EXTOUT_REAR_L), C_00000000,
1691 			GPR(16), GPR(0), &pc);
1692 	emu_addefxop(sc, iMAC0, EXTOUT(EXTOUT_REAR_R), C_00000000,
1693 			GPR(17), GPR(1), &pc);
1694 #else
1695 	/* XXX This is just a copy to the channel, since we do not have
1696 	 *     a patch manager, it is useful for have another output enabled.
1697 	 */
1698 
1699 	/* Rear[l/r] = GPR[0/1] */
1700 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_REAR_L), C_00000000,
1701 			C_00000000, GPR(0), &pc);
1702 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_REAR_R), C_00000000,
1703 			C_00000000, GPR(1), &pc);
1704 #endif
1705 
1706 	/* TOS out[l/r] = GPR[0/1] */
1707 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_TOSLINK_L), C_00000000,
1708 			C_00000000, GPR(0), &pc);
1709 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_TOSLINK_R), C_00000000,
1710 			C_00000000, GPR(1), &pc);
1711 
1712 	/* Center and Subwoofer configuration */
1713 	/* Analog Center = GPR[0] + GPR[2] */
1714 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ACENTER), C_00000000,
1715 			GPR(0), GPR(2), &pc);
1716 	/* Analog Sub = GPR[1] + GPR[2] */
1717 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ALFE), C_00000000,
1718 			GPR(1), GPR(2), &pc);
1719 	/* Digital Center = GPR[0] + GPR[2] */
1720 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_CENTER), C_00000000,
1721 			GPR(0), GPR(2), &pc);
1722 	/* Digital Sub = GPR[1] + GPR[2] */
1723 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_LFE), C_00000000,
1724 			GPR(1), GPR(2), &pc);
1725 
1726 	/* Headphones[l/r] = GPR[0/1] */
1727 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_HEADPHONE_L), C_00000000,
1728 			C_00000000, GPR(0), &pc);
1729 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_HEADPHONE_R), C_00000000,
1730 			C_00000000, GPR(1), &pc);
1731 
1732 	/* ADC Recording buffer[l/r] = AC97Input[l/r] */
1733 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ADC_CAP_L), C_00000000,
1734 			C_00000000, EXTIN(EXTIN_AC97_L), &pc);
1735 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ADC_CAP_R), C_00000000,
1736 			C_00000000, EXTIN(EXTIN_AC97_R), &pc);
1737 
1738 	/* resume normal operations */
1739 	emu_wrptr(sc, 0, EMU_DBG, 0);
1740 }
1741 
1742 /* Probe and attach the card */
1743 static int
1744 emu_init(struct sc_info *sc)
1745 {
1746 	u_int32_t spcs, ch, tmp, i;
1747 
1748 	if (sc->audigy) {
1749 		/* enable additional AC97 slots */
1750 		emu_wrptr(sc, 0, EMU_AC97SLOT, EMU_AC97SLOT_CENTER | EMU_AC97SLOT_LFE);
1751 	}
1752 
1753 	/* disable audio and lock cache */
1754 	emu_wr(sc, EMU_HCFG,
1755 	    EMU_HCFG_LOCKSOUNDCACHE | EMU_HCFG_LOCKTANKCACHE_MASK | EMU_HCFG_MUTEBUTTONENABLE,
1756 	    4);
1757 
1758 	/* reset recording buffers */
1759 	emu_wrptr(sc, 0, EMU_MICBS, EMU_RECBS_BUFSIZE_NONE);
1760 	emu_wrptr(sc, 0, EMU_MICBA, 0);
1761 	emu_wrptr(sc, 0, EMU_FXBS, EMU_RECBS_BUFSIZE_NONE);
1762 	emu_wrptr(sc, 0, EMU_FXBA, 0);
1763 	emu_wrptr(sc, 0, EMU_ADCBS, EMU_RECBS_BUFSIZE_NONE);
1764 	emu_wrptr(sc, 0, EMU_ADCBA, 0);
1765 
1766 	/* disable channel interrupt */
1767 	emu_wr(sc, EMU_INTE,
1768 	    EMU_INTE_INTERTIMERENB | EMU_INTE_SAMPLERATER | EMU_INTE_PCIERRENABLE,
1769 	    4);
1770 	emu_wrptr(sc, 0, EMU_CLIEL, 0);
1771 	emu_wrptr(sc, 0, EMU_CLIEH, 0);
1772 	emu_wrptr(sc, 0, EMU_SOLEL, 0);
1773 	emu_wrptr(sc, 0, EMU_SOLEH, 0);
1774 
1775 	/* wonder what these do... */
1776 	if (sc->audigy) {
1777 		emu_wrptr(sc, 0, EMU_SPBYPASS, 0xf00);
1778 		emu_wrptr(sc, 0, EMU_AC97SLOT, 0x3);
1779 	}
1780 
1781 	/* init envelope engine */
1782 	for (ch = 0; ch < NUM_G; ch++) {
1783 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSV, ENV_OFF);
1784 		emu_wrptr(sc, ch, EMU_CHAN_IP, 0);
1785 		emu_wrptr(sc, ch, EMU_CHAN_VTFT, 0xffff);
1786 		emu_wrptr(sc, ch, EMU_CHAN_CVCF, 0xffff);
1787 		emu_wrptr(sc, ch, EMU_CHAN_PTRX, 0);
1788 		emu_wrptr(sc, ch, EMU_CHAN_CPF, 0);
1789 		emu_wrptr(sc, ch, EMU_CHAN_CCR, 0);
1790 
1791 		emu_wrptr(sc, ch, EMU_CHAN_PSST, 0);
1792 		emu_wrptr(sc, ch, EMU_CHAN_DSL, 0x10);
1793 		emu_wrptr(sc, ch, EMU_CHAN_CCCA, 0);
1794 		emu_wrptr(sc, ch, EMU_CHAN_Z1, 0);
1795 		emu_wrptr(sc, ch, EMU_CHAN_Z2, 0);
1796 		emu_wrptr(sc, ch, EMU_CHAN_FXRT, 0xd01c0000);
1797 
1798 		emu_wrptr(sc, ch, EMU_CHAN_ATKHLDM, 0);
1799 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSM, 0);
1800 		emu_wrptr(sc, ch, EMU_CHAN_IFATN, 0xffff);
1801 		emu_wrptr(sc, ch, EMU_CHAN_PEFE, 0);
1802 		emu_wrptr(sc, ch, EMU_CHAN_FMMOD, 0);
1803 		emu_wrptr(sc, ch, EMU_CHAN_TREMFRQ, 24);	/* 1 Hz */
1804 		emu_wrptr(sc, ch, EMU_CHAN_FM2FRQ2, 24);	/* 1 Hz */
1805 		emu_wrptr(sc, ch, EMU_CHAN_TEMPENV, 0);
1806 
1807 		/*** these are last so OFF prevents writing ***/
1808 		emu_wrptr(sc, ch, EMU_CHAN_LFOVAL2, 0);
1809 		emu_wrptr(sc, ch, EMU_CHAN_LFOVAL1, 0);
1810 		emu_wrptr(sc, ch, EMU_CHAN_ATKHLDV, 0);
1811 		emu_wrptr(sc, ch, EMU_CHAN_ENVVOL, 0);
1812 		emu_wrptr(sc, ch, EMU_CHAN_ENVVAL, 0);
1813 
1814 		if (sc->audigy) {
1815 			/* audigy cards need this to initialize correctly */
1816 			emu_wrptr(sc, ch, 0x4c, 0);
1817 			emu_wrptr(sc, ch, 0x4d, 0);
1818 			emu_wrptr(sc, ch, 0x4e, 0);
1819 			emu_wrptr(sc, ch, 0x4f, 0);
1820 			/* set default routing */
1821 			emu_wrptr(sc, ch, EMU_A_CHAN_FXRT1, 0x03020100);
1822 			emu_wrptr(sc, ch, EMU_A_CHAN_FXRT2, 0x3f3f3f3f);
1823 			emu_wrptr(sc, ch, EMU_A_CHAN_SENDAMOUNTS, 0);
1824 		}
1825 
1826 		sc->voice[ch].vnum = ch;
1827 		sc->voice[ch].slave = NULL;
1828 		sc->voice[ch].busy = 0;
1829 		sc->voice[ch].ismaster = 0;
1830 		sc->voice[ch].running = 0;
1831 		sc->voice[ch].b16 = 0;
1832 		sc->voice[ch].stereo = 0;
1833 		sc->voice[ch].speed = 0;
1834 		sc->voice[ch].start = 0;
1835 		sc->voice[ch].end = 0;
1836 		sc->voice[ch].channel = NULL;
1837 	}
1838 	sc->pnum = sc->rnum = 0;
1839 
1840 	/*
1841 	 *  Init to 0x02109204 :
1842 	 *  Clock accuracy    = 0     (1000ppm)
1843 	 *  Sample Rate       = 2     (48kHz)
1844 	 *  Audio Channel     = 1     (Left of 2)
1845 	 *  Source Number     = 0     (Unspecified)
1846 	 *  Generation Status = 1     (Original for Cat Code 12)
1847 	 *  Cat Code          = 12    (Digital Signal Mixer)
1848 	 *  Mode              = 0     (Mode 0)
1849 	 *  Emphasis          = 0     (None)
1850 	 *  CP                = 1     (Copyright unasserted)
1851 	 *  AN                = 0     (Audio data)
1852 	 *  P                 = 0     (Consumer)
1853 	 */
1854 	spcs = EMU_SPCS_CLKACCY_1000PPM | EMU_SPCS_SAMPLERATE_48 |
1855 	    EMU_SPCS_CHANNELNUM_LEFT | EMU_SPCS_SOURCENUM_UNSPEC |
1856 	    EMU_SPCS_GENERATIONSTATUS | 0x00001200 | 0x00000000 |
1857 	    EMU_SPCS_EMPHASIS_NONE | EMU_SPCS_COPYRIGHT;
1858 	emu_wrptr(sc, 0, EMU_SPCS0, spcs);
1859 	emu_wrptr(sc, 0, EMU_SPCS1, spcs);
1860 	emu_wrptr(sc, 0, EMU_SPCS2, spcs);
1861 
1862 	if (!sc->audigy)
1863 		emu_initefx(sc);
1864 	else if (sc->audigy2) {	/* Audigy 2 */
1865 		/* from ALSA initialization code: */
1866 
1867 		/* Hack for Alice3 to work independent of haP16V driver */
1868 		u_int32_t tmp;
1869 
1870 		/* Setup SRCMulti_I2S SamplingRate */
1871 		tmp = emu_rdptr(sc, 0, EMU_A_SPDIF_SAMPLERATE) & 0xfffff1ff;
1872 		emu_wrptr(sc, 0, EMU_A_SPDIF_SAMPLERATE, tmp | 0x400);
1873 
1874 		/* Setup SRCSel (Enable SPDIF, I2S SRCMulti) */
1875 		emu_wr(sc, 0x20, 0x00600000, 4);
1876 		emu_wr(sc, 0x24, 0x00000014, 4);
1877 
1878 		/* Setup SRCMulti Input Audio Enable */
1879 		emu_wr(sc, 0x20, 0x006e0000, 4);
1880 		emu_wr(sc, 0x24, 0xff00ff00, 4);
1881 	}
1882 
1883 	SLIST_INIT(&sc->mem.blocks);
1884 	sc->mem.ptb_pages = emu_malloc(sc, EMUMAXPAGES * sizeof(u_int32_t),
1885 	    &sc->mem.ptb_pages_addr, &sc->mem.ptb_map);
1886 	if (sc->mem.ptb_pages == NULL)
1887 		return -1;
1888 
1889 	sc->mem.silent_page = emu_malloc(sc, EMUPAGESIZE,
1890 	    &sc->mem.silent_page_addr, &sc->mem.silent_map);
1891 	if (sc->mem.silent_page == NULL) {
1892 		emu_free(sc, sc->mem.ptb_pages, sc->mem.ptb_map);
1893 		return -1;
1894 	}
1895 	/* Clear page with silence & setup all pointers to this page */
1896 	bzero(sc->mem.silent_page, EMUPAGESIZE);
1897 	tmp = (u_int32_t)(sc->mem.silent_page_addr) << 1;
1898 	for (i = 0; i < EMUMAXPAGES; i++)
1899 		sc->mem.ptb_pages[i] = tmp | i;
1900 
1901 	emu_wrptr(sc, 0, EMU_PTB, (sc->mem.ptb_pages_addr));
1902 	emu_wrptr(sc, 0, EMU_TCB, 0);	/* taken from original driver */
1903 	emu_wrptr(sc, 0, EMU_TCBS, 0);	/* taken from original driver */
1904 
1905 	for (ch = 0; ch < NUM_G; ch++) {
1906 		emu_wrptr(sc, ch, EMU_CHAN_MAPA, tmp | EMU_CHAN_MAP_PTI_MASK);
1907 		emu_wrptr(sc, ch, EMU_CHAN_MAPB, tmp | EMU_CHAN_MAP_PTI_MASK);
1908 	}
1909 
1910 	/* emu_memalloc(sc, EMUPAGESIZE); */
1911 	/*
1912 	 *  Hokay, now enable the AUD bit
1913 	 *
1914 	 *  Audigy
1915 	 *   Enable Audio = 0 (enabled after fx processor initialization)
1916 	 *   Mute Disable Audio = 0
1917 	 *   Joystick = 1
1918 	 *
1919 	 *  Audigy 2
1920 	 *   Enable Audio = 1
1921 	 *   Mute Disable Audio = 0
1922 	 *   Joystick = 1
1923 	 *   GP S/PDIF AC3 Enable = 1
1924 	 *   CD S/PDIF AC3 Enable = 1
1925 	 *
1926 	 *  EMU10K1
1927 	 *   Enable Audio = 1
1928 	 *   Mute Disable Audio = 0
1929 	 *   Lock Tank Memory = 1
1930 	 *   Lock Sound Memory = 0
1931 	 *   Auto Mute = 1
1932 	 */
1933 
1934 	if (sc->audigy) {
1935 		tmp = EMU_HCFG_AUTOMUTE | EMU_HCFG_JOYENABLE;
1936 		if (sc->audigy2)	/* Audigy 2 */
1937 			tmp = EMU_HCFG_AUDIOENABLE | EMU_HCFG_AC3ENABLE_CDSPDIF |
1938 			    EMU_HCFG_AC3ENABLE_GPSPDIF;
1939 		emu_wr(sc, EMU_HCFG, tmp, 4);
1940 
1941 		audigy_initefx(sc);
1942 
1943 		/* from ALSA initialization code: */
1944 
1945 		/* enable audio and disable both audio/digital outputs */
1946 		emu_wr(sc, EMU_HCFG, emu_rd(sc, EMU_HCFG, 4) | EMU_HCFG_AUDIOENABLE, 4);
1947 		emu_wr(sc, EMU_A_IOCFG, emu_rd(sc, EMU_A_IOCFG, 4) & ~EMU_A_IOCFG_GPOUT_AD,
1948 		    4);
1949 		if (sc->audigy2) {	/* Audigy 2 */
1950 			/* Unmute Analog.
1951 			 * Set GPO6 to 1 for Apollo. This has to be done after
1952 			 * init Alice3 I2SOut beyond 48kHz.
1953 			 * So, sequence is important.
1954 			 */
1955 			emu_wr(sc, EMU_A_IOCFG,
1956 			    emu_rd(sc, EMU_A_IOCFG, 4) | EMU_A_IOCFG_GPOUT_A, 4);
1957 		}
1958 	} else {
1959 		/* EMU10K1 initialization code */
1960 		tmp = EMU_HCFG_AUDIOENABLE | EMU_HCFG_LOCKTANKCACHE_MASK
1961 		    | EMU_HCFG_AUTOMUTE;
1962 		if (sc->rev >= 6)
1963 			tmp |= EMU_HCFG_JOYENABLE;
1964 
1965 		emu_wr(sc, EMU_HCFG, tmp, 4);
1966 
1967 		/* TOSLink detection */
1968 		sc->tos_link = 0;
1969 		tmp = emu_rd(sc, EMU_HCFG, 4);
1970 		if (tmp & (EMU_HCFG_GPINPUT0 | EMU_HCFG_GPINPUT1)) {
1971 			emu_wr(sc, EMU_HCFG, tmp | EMU_HCFG_GPOUT1, 4);
1972 			DELAY(50);
1973 			if (tmp != (emu_rd(sc, EMU_HCFG, 4) & ~EMU_HCFG_GPOUT1)) {
1974 				sc->tos_link = 1;
1975 				emu_wr(sc, EMU_HCFG, tmp, 4);
1976 			}
1977 		}
1978 	}
1979 
1980 	return 0;
1981 }
1982 
1983 static int
1984 emu_uninit(struct sc_info *sc)
1985 {
1986 	u_int32_t ch;
1987 
1988 	emu_wr(sc, EMU_INTE, 0, 4);
1989 	for (ch = 0; ch < NUM_G; ch++)
1990 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSV, ENV_OFF);
1991 	for (ch = 0; ch < NUM_G; ch++) {
1992 		emu_wrptr(sc, ch, EMU_CHAN_VTFT, 0);
1993 		emu_wrptr(sc, ch, EMU_CHAN_CVCF, 0);
1994 		emu_wrptr(sc, ch, EMU_CHAN_PTRX, 0);
1995 		emu_wrptr(sc, ch, EMU_CHAN_CPF, 0);
1996 	}
1997 
1998 	if (sc->audigy) {	/* stop fx processor */
1999 		emu_wrptr(sc, 0, EMU_A_DBG, EMU_A_DBG_SINGLE_STEP);
2000 	}
2001 
2002 	/* disable audio and lock cache */
2003 	emu_wr(sc, EMU_HCFG,
2004 	    EMU_HCFG_LOCKSOUNDCACHE | EMU_HCFG_LOCKTANKCACHE_MASK | EMU_HCFG_MUTEBUTTONENABLE,
2005 	    4);
2006 
2007 	emu_wrptr(sc, 0, EMU_PTB, 0);
2008 	/* reset recording buffers */
2009 	emu_wrptr(sc, 0, EMU_MICBS, EMU_RECBS_BUFSIZE_NONE);
2010 	emu_wrptr(sc, 0, EMU_MICBA, 0);
2011 	emu_wrptr(sc, 0, EMU_FXBS, EMU_RECBS_BUFSIZE_NONE);
2012 	emu_wrptr(sc, 0, EMU_FXBA, 0);
2013 	emu_wrptr(sc, 0, EMU_FXWC, 0);
2014 	emu_wrptr(sc, 0, EMU_ADCBS, EMU_RECBS_BUFSIZE_NONE);
2015 	emu_wrptr(sc, 0, EMU_ADCBA, 0);
2016 	emu_wrptr(sc, 0, EMU_TCB, 0);
2017 	emu_wrptr(sc, 0, EMU_TCBS, 0);
2018 
2019 	/* disable channel interrupt */
2020 	emu_wrptr(sc, 0, EMU_CLIEL, 0);
2021 	emu_wrptr(sc, 0, EMU_CLIEH, 0);
2022 	emu_wrptr(sc, 0, EMU_SOLEL, 0);
2023 	emu_wrptr(sc, 0, EMU_SOLEH, 0);
2024 
2025 	/* init envelope engine */
2026 	if (!SLIST_EMPTY(&sc->mem.blocks))
2027 		device_printf(sc->dev, "warning: memblock list not empty\n");
2028 	emu_free(sc, sc->mem.ptb_pages, sc->mem.ptb_map);
2029 	emu_free(sc, sc->mem.silent_page, sc->mem.silent_map);
2030 
2031 	if(sc->mpu)
2032 	    mpu401_uninit(sc->mpu);
2033 	return 0;
2034 }
2035 
2036 static int
2037 emu_pci_probe(device_t dev)
2038 {
2039 	char *s = NULL;
2040 
2041 	switch (pci_get_devid(dev)) {
2042 	case EMU10K1_PCI_ID:
2043 		s = "Creative EMU10K1";
2044 		break;
2045 
2046 	case EMU10K2_PCI_ID:
2047 		if (pci_get_revid(dev) == 0x04)
2048 			s = "Creative Audigy 2 (EMU10K2)";
2049 		else
2050 			s = "Creative Audigy (EMU10K2)";
2051 		break;
2052 
2053 	case EMU10K3_PCI_ID:
2054 		s = "Creative Audigy 2 (EMU10K3)";
2055 		break;
2056 
2057 	default:
2058 		return ENXIO;
2059 	}
2060 
2061 	device_set_desc(dev, s);
2062 	return BUS_PROBE_LOW_PRIORITY;
2063 }
2064 
2065 static int
2066 emu_pci_attach(device_t dev)
2067 {
2068 	struct ac97_info *codec = NULL;
2069 	struct sc_info *sc;
2070 	int i, gotmic;
2071 	char status[SND_STATUSLEN];
2072 
2073 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
2074 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_emu10k1 softc");
2075 	sc->dev = dev;
2076 	sc->type = pci_get_devid(dev);
2077 	sc->rev = pci_get_revid(dev);
2078 	sc->audigy = sc->type == EMU10K2_PCI_ID || sc->type == EMU10K3_PCI_ID;
2079 	sc->audigy2 = (sc->audigy && sc->rev == 0x04);
2080 	sc->nchans = sc->audigy ? 8 : 4;
2081 	sc->addrmask = sc->audigy ? EMU_A_PTR_ADDR_MASK : EMU_PTR_ADDR_MASK;
2082 
2083 	pci_enable_busmaster(dev);
2084 
2085 	i = PCIR_BAR(0);
2086 	sc->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &i, RF_ACTIVE);
2087 	if (sc->reg == NULL) {
2088 		device_printf(dev, "unable to map register space\n");
2089 		goto bad;
2090 	}
2091 	sc->st = rman_get_bustag(sc->reg);
2092 	sc->sh = rman_get_bushandle(sc->reg);
2093 
2094 	sc->bufsz = pcm_getbuffersize(dev, 4096, EMU_DEFAULT_BUFSZ, 65536);
2095 
2096 	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
2097 		/*boundary*/0,
2098 		/*lowaddr*/(1U << 31) - 1, /* can only access 0-2gb */
2099 		/*highaddr*/BUS_SPACE_MAXADDR,
2100 		/*filter*/NULL, /*filterarg*/NULL,
2101 		/*maxsize*/sc->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
2102 		/*flags*/0, /*lockfunc*/NULL, /*lockarg*/NULL,
2103 		&sc->parent_dmat) != 0) {
2104 		device_printf(dev, "unable to create dma tag\n");
2105 		goto bad;
2106 	}
2107 
2108 	if (emu_init(sc) == -1) {
2109 		device_printf(dev, "unable to initialize the card\n");
2110 		goto bad;
2111 	}
2112 
2113 	codec = AC97_CREATE(dev, sc, emu_ac97);
2114 	if (codec == NULL) goto bad;
2115 	gotmic = (ac97_getcaps(codec) & AC97_CAP_MICCHANNEL) ? 1 : 0;
2116 	if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto bad;
2117 
2118 	emu_midiattach(sc);
2119 
2120 	i = 0;
2121 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
2122 	    RF_ACTIVE | RF_SHAREABLE);
2123 	if (!sc->irq ||
2124 	    snd_setup_intr(dev, sc->irq, INTR_MPSAFE, emu_intr, sc, &sc->ih)) {
2125 		device_printf(dev, "unable to map interrupt\n");
2126 		goto bad;
2127 	}
2128 
2129 	snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd %s",
2130 	    rman_get_start(sc->reg), rman_get_start(sc->irq),
2131 	    PCM_KLDSTRING(snd_emu10k1));
2132 
2133 	if (pcm_register(dev, sc, sc->nchans, gotmic ? 3 : 2)) goto bad;
2134 	for (i = 0; i < sc->nchans; i++)
2135 		pcm_addchan(dev, PCMDIR_PLAY, &emupchan_class, sc);
2136 	for (i = 0; i < (gotmic ? 3 : 2); i++)
2137 		pcm_addchan(dev, PCMDIR_REC, &emurchan_class, sc);
2138 
2139 	pcm_setstatus(dev, status);
2140 
2141 	return 0;
2142 
2143 bad:
2144 	if (codec) ac97_destroy(codec);
2145 	if (sc->reg) bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->reg);
2146 	if (sc->ih) bus_teardown_intr(dev, sc->irq, sc->ih);
2147 	if (sc->irq) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
2148 	if (sc->parent_dmat) bus_dma_tag_destroy(sc->parent_dmat);
2149 	if (sc->lock) snd_mtxfree(sc->lock);
2150 	free(sc, M_DEVBUF);
2151 	return ENXIO;
2152 }
2153 
2154 static int
2155 emu_pci_detach(device_t dev)
2156 {
2157 	int r;
2158 	struct sc_info *sc;
2159 
2160 	r = pcm_unregister(dev);
2161 	if (r)
2162 		return r;
2163 
2164 	sc = pcm_getdevinfo(dev);
2165 	/* shutdown chip */
2166 	emu_uninit(sc);
2167 
2168 	bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->reg);
2169 	bus_teardown_intr(dev, sc->irq, sc->ih);
2170 	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
2171 	bus_dma_tag_destroy(sc->parent_dmat);
2172 	snd_mtxfree(sc->lock);
2173 	free(sc, M_DEVBUF);
2174 
2175 	return 0;
2176 }
2177 
2178 /* add suspend, resume */
2179 static device_method_t emu_methods[] = {
2180 	/* Device interface */
2181 	DEVMETHOD(device_probe,		emu_pci_probe),
2182 	DEVMETHOD(device_attach,	emu_pci_attach),
2183 	DEVMETHOD(device_detach,	emu_pci_detach),
2184 
2185 	DEVMETHOD_END
2186 };
2187 
2188 static driver_t emu_driver = {
2189 	"pcm",
2190 	emu_methods,
2191 	PCM_SOFTC_SIZE,
2192 };
2193 
2194 DRIVER_MODULE(snd_emu10k1, pci, emu_driver, NULL, NULL);
2195 MODULE_DEPEND(snd_emu10k1, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
2196 MODULE_VERSION(snd_emu10k1, 1);
2197 MODULE_DEPEND(snd_emu10k1, midi, 1, 1, 1);
2198 
2199 /* dummy driver to silence the joystick device */
2200 static int
2201 emujoy_pci_probe(device_t dev)
2202 {
2203 	char *s = NULL;
2204 
2205 	switch (pci_get_devid(dev)) {
2206 	case 0x70021102:
2207 		s = "Creative EMU10K1 Joystick";
2208 		device_quiet(dev);
2209 		break;
2210 	case 0x70031102:
2211 		s = "Creative EMU10K2 Joystick";
2212 		device_quiet(dev);
2213 		break;
2214 	}
2215 
2216 	if (s) device_set_desc(dev, s);
2217 	return s ? -1000 : ENXIO;
2218 }
2219 
2220 static int
2221 emujoy_pci_attach(device_t dev)
2222 {
2223 
2224 	return 0;
2225 }
2226 
2227 static int
2228 emujoy_pci_detach(device_t dev)
2229 {
2230 
2231 	return 0;
2232 }
2233 
2234 static device_method_t emujoy_methods[] = {
2235 	DEVMETHOD(device_probe,		emujoy_pci_probe),
2236 	DEVMETHOD(device_attach,	emujoy_pci_attach),
2237 	DEVMETHOD(device_detach,	emujoy_pci_detach),
2238 
2239 	DEVMETHOD_END
2240 };
2241 
2242 static driver_t emujoy_driver = {
2243 	"emujoy",
2244 	emujoy_methods,
2245 	1	/* no softc */
2246 };
2247 
2248 DRIVER_MODULE(emujoy, pci, emujoy_driver, NULL, NULL);
2249