xref: /freebsd/sys/dev/sound/pci/emu10k1.c (revision f7c32ed617858bcd22f8d1b03199099d50125721)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 SND_DECLARE_FILE("$FreeBSD$");
47 
48 /* -------------------------------------------------------------------- */
49 
50 #define	NUM_G		64	/* use all channels */
51 #define	WAVEOUT_MAXBUFSIZE 32768
52 #define	EMUPAGESIZE	4096	/* don't change */
53 #define	EMUMAXPAGES	(WAVEOUT_MAXBUFSIZE * NUM_G / EMUPAGESIZE)
54 #define	EMU10K1_PCI_ID	0x00021102	/* 1102 => Creative Labs Vendor ID */
55 #define	EMU10K2_PCI_ID	0x00041102
56 #define	EMU10K3_PCI_ID	0x00081102
57 #define	EMU_DEFAULT_BUFSZ	4096
58 #define EMU_MAX_CHANS	8
59 #define	EMU_CHANS	4
60 
61 #define	MAXREQVOICES	8
62 #define	RESERVED	0
63 #define	NUM_MIDI	16
64 #define	NUM_FXSENDS	4
65 
66 #define	TMEMSIZE	256*1024
67 #define	TMEMSIZEREG	4
68 
69 #define	ENABLE		0xffffffff
70 #define	DISABLE		0x00000000
71 #define	ENV_ON		EMU_CHAN_DCYSUSV_CHANNELENABLE_MASK
72 #define	ENV_OFF		0x00	/* XXX: should this be 1? */
73 
74 #define	EMU_A_IOCFG_GPOUT_A	0x40
75 #define	EMU_A_IOCFG_GPOUT_D	0x04
76 #define	EMU_A_IOCFG_GPOUT_AD (EMU_A_IOCFG_GPOUT_A|EMU_A_IOCFG_GPOUT_D)  /* EMU_A_IOCFG_GPOUT0 */
77 
78 #define	EMU_HCFG_GPOUT1		0x00000800
79 
80 /* instruction set */
81 #define iACC3	 0x06
82 #define iMACINT0 0x04
83 #define iINTERP  0x0e
84 
85 #define C_00000000	0x40
86 #define C_00000001	0x41
87 #define C_00000004	0x44
88 #define C_40000000	0x4d
89 /* Audigy constants */
90 #define A_C_00000000	0xc0
91 #define A_C_40000000	0xcd
92 
93 /* GPRs */
94 #define FXBUS(x)	(0x00 + (x))
95 #define EXTIN(x)	(0x10 + (x))
96 #define EXTOUT(x)	(0x20 + (x))
97 
98 #define GPR(x)		(EMU_FXGPREGBASE + (x))
99 #define A_EXTIN(x)	(0x40 + (x))
100 #define A_FXBUS(x)	(0x00 + (x))
101 #define A_EXTOUT(x)	(0x60 + (x))
102 #define A_GPR(x)	(EMU_A_FXGPREGBASE + (x))
103 
104 /* FX buses */
105 #define FXBUS_PCM_LEFT		0x00
106 #define FXBUS_PCM_RIGHT		0x01
107 #define FXBUS_MIDI_LEFT		0x04
108 #define FXBUS_MIDI_RIGHT	0x05
109 #define FXBUS_MIDI_REVERB	0x0c
110 #define FXBUS_MIDI_CHORUS	0x0d
111 
112 /* Inputs */
113 #define EXTIN_AC97_L		0x00
114 #define EXTIN_AC97_R		0x01
115 #define EXTIN_SPDIF_CD_L	0x02
116 #define EXTIN_SPDIF_CD_R	0x03
117 #define EXTIN_TOSLINK_L		0x06
118 #define EXTIN_TOSLINK_R		0x07
119 #define EXTIN_COAX_SPDIF_L	0x0a
120 #define EXTIN_COAX_SPDIF_R	0x0b
121 /* Audigy Inputs */
122 #define A_EXTIN_AC97_L		0x00
123 #define A_EXTIN_AC97_R		0x01
124 
125 /* Outputs */
126 #define EXTOUT_AC97_L	   0x00
127 #define EXTOUT_AC97_R	   0x01
128 #define EXTOUT_TOSLINK_L   0x02
129 #define EXTOUT_TOSLINK_R   0x03
130 #define EXTOUT_AC97_CENTER 0x04
131 #define EXTOUT_AC97_LFE	   0x05
132 #define EXTOUT_HEADPHONE_L 0x06
133 #define EXTOUT_HEADPHONE_R 0x07
134 #define EXTOUT_REAR_L	   0x08
135 #define EXTOUT_REAR_R	   0x09
136 #define EXTOUT_ADC_CAP_L   0x0a
137 #define EXTOUT_ADC_CAP_R   0x0b
138 #define EXTOUT_ACENTER	   0x11
139 #define EXTOUT_ALFE	   0x12
140 /* Audigy Outputs */
141 #define A_EXTOUT_FRONT_L	0x00
142 #define A_EXTOUT_FRONT_R	0x01
143 #define A_EXTOUT_CENTER		0x02
144 #define A_EXTOUT_LFE		0x03
145 #define A_EXTOUT_HEADPHONE_L	0x04
146 #define A_EXTOUT_HEADPHONE_R	0x05
147 #define A_EXTOUT_REAR_L		0x06
148 #define A_EXTOUT_REAR_R		0x07
149 #define A_EXTOUT_AFRONT_L	0x08
150 #define A_EXTOUT_AFRONT_R	0x09
151 #define A_EXTOUT_ACENTER	0x0a
152 #define A_EXTOUT_ALFE		0x0b
153 #define A_EXTOUT_AREAR_L	0x0e
154 #define A_EXTOUT_AREAR_R	0x0f
155 #define A_EXTOUT_AC97_L		0x10
156 #define A_EXTOUT_AC97_R		0x11
157 #define A_EXTOUT_ADC_CAP_L	0x16
158 #define A_EXTOUT_ADC_CAP_R	0x17
159 
160 struct emu_memblk {
161 	SLIST_ENTRY(emu_memblk) link;
162 	void *buf;
163 	bus_addr_t buf_addr;
164 	u_int32_t pte_start, pte_size;
165 	bus_dmamap_t buf_map;
166 };
167 
168 struct emu_mem {
169 	u_int8_t bmap[EMUMAXPAGES / 8];
170 	u_int32_t *ptb_pages;
171 	void *silent_page;
172 	bus_addr_t silent_page_addr;
173 	bus_addr_t ptb_pages_addr;
174 	bus_dmamap_t ptb_map;
175 	bus_dmamap_t silent_map;
176 	SLIST_HEAD(, emu_memblk) blocks;
177 };
178 
179 struct emu_voice {
180 	int vnum;
181 	unsigned int b16:1, stereo:1, busy:1, running:1, ismaster:1;
182 	int speed;
183 	int start, end, vol;
184 	int fxrt1;	/* FX routing */
185 	int fxrt2;	/* FX routing (only for audigy) */
186 	u_int32_t buf;
187 	struct emu_voice *slave;
188 	struct pcm_channel *channel;
189 };
190 
191 struct sc_info;
192 
193 /* channel registers */
194 struct sc_pchinfo {
195 	int spd, fmt, blksz, run;
196 	struct emu_voice *master, *slave;
197 	struct snd_dbuf *buffer;
198 	struct pcm_channel *channel;
199 	struct sc_info *parent;
200 };
201 
202 struct sc_rchinfo {
203 	int spd, fmt, run, blksz, num;
204 	u_int32_t idxreg, basereg, sizereg, setupreg, irqmask;
205 	struct snd_dbuf *buffer;
206 	struct pcm_channel *channel;
207 	struct sc_info *parent;
208 };
209 
210 /* device private data */
211 struct sc_info {
212 	device_t	dev;
213 	u_int32_t	type, rev;
214 	u_int32_t	tos_link:1, APS:1, audigy:1, audigy2:1;
215 	u_int32_t	addrmask;	/* wider if audigy */
216 
217 	bus_space_tag_t st;
218 	bus_space_handle_t sh;
219 	bus_dma_tag_t parent_dmat;
220 
221 	struct resource *reg, *irq;
222 	void		*ih;
223 	struct mtx	*lock;
224 
225 	unsigned int bufsz;
226 	int timer, timerinterval;
227 	int pnum, rnum;
228 	int nchans;
229 	struct emu_mem mem;
230 	struct emu_voice voice[64];
231 	struct sc_pchinfo pch[EMU_MAX_CHANS];
232 	struct sc_rchinfo rch[3];
233 	struct mpu401   *mpu;
234 	mpu401_intr_t           *mpu_intr;
235 	int mputx;
236 };
237 
238 /* -------------------------------------------------------------------- */
239 
240 /*
241  * prototypes
242  */
243 
244 /* stuff */
245 static int emu_init(struct sc_info *);
246 static void emu_intr(void *);
247 static void *emu_malloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr, bus_dmamap_t *map);
248 static void *emu_memalloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr);
249 static int emu_memfree(struct sc_info *sc, void *buf);
250 static int emu_memstart(struct sc_info *sc, void *buf);
251 #ifdef EMUDEBUG
252 static void emu_vdump(struct sc_info *sc, struct emu_voice *v);
253 #endif
254 
255 /* talk to the card */
256 static u_int32_t emu_rd(struct sc_info *, int, int);
257 static void emu_wr(struct sc_info *, int, u_int32_t, int);
258 
259 /* -------------------------------------------------------------------- */
260 
261 static u_int32_t emu_rfmt_ac97[] = {
262 	SND_FORMAT(AFMT_S16_LE, 1, 0),
263 	SND_FORMAT(AFMT_S16_LE, 2, 0),
264 	0
265 };
266 
267 static u_int32_t emu_rfmt_mic[] = {
268 	SND_FORMAT(AFMT_U8, 1, 0),
269 	0
270 };
271 
272 static u_int32_t emu_rfmt_efx[] = {
273 	SND_FORMAT(AFMT_S16_LE, 2, 0),
274 	0
275 };
276 
277 static struct pcmchan_caps emu_reccaps[3] = {
278 	{8000, 48000, emu_rfmt_ac97, 0},
279 	{8000, 8000, emu_rfmt_mic, 0},
280 	{48000, 48000, emu_rfmt_efx, 0},
281 };
282 
283 static u_int32_t emu_pfmt[] = {
284 	SND_FORMAT(AFMT_U8, 1, 0),
285 	SND_FORMAT(AFMT_U8, 2, 0),
286 	SND_FORMAT(AFMT_S16_LE, 1, 0),
287 	SND_FORMAT(AFMT_S16_LE, 2, 0),
288 	0
289 };
290 
291 static struct pcmchan_caps emu_playcaps = {4000, 48000, emu_pfmt, 0};
292 
293 static int adcspeed[8] = {48000, 44100, 32000, 24000, 22050, 16000, 11025, 8000};
294 /* audigy supports 12kHz. */
295 static int audigy_adcspeed[9] = {
296 	48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000
297 };
298 
299 /* -------------------------------------------------------------------- */
300 /* Hardware */
301 static u_int32_t
302 emu_rd(struct sc_info *sc, int regno, int size)
303 {
304 	switch (size) {
305 	case 1:
306 		return bus_space_read_1(sc->st, sc->sh, regno);
307 	case 2:
308 		return bus_space_read_2(sc->st, sc->sh, regno);
309 	case 4:
310 		return bus_space_read_4(sc->st, sc->sh, regno);
311 	default:
312 		return 0xffffffff;
313 	}
314 }
315 
316 static void
317 emu_wr(struct sc_info *sc, int regno, u_int32_t data, int size)
318 {
319 	switch (size) {
320 	case 1:
321 		bus_space_write_1(sc->st, sc->sh, regno, data);
322 		break;
323 	case 2:
324 		bus_space_write_2(sc->st, sc->sh, regno, data);
325 		break;
326 	case 4:
327 		bus_space_write_4(sc->st, sc->sh, regno, data);
328 		break;
329 	}
330 }
331 
332 static u_int32_t
333 emu_rdptr(struct sc_info *sc, int chn, int reg)
334 {
335 	u_int32_t ptr, val, mask, size, offset;
336 
337 	ptr = ((reg << 16) & sc->addrmask) | (chn & EMU_PTR_CHNO_MASK);
338 	emu_wr(sc, EMU_PTR, ptr, 4);
339 	val = emu_rd(sc, EMU_DATA, 4);
340 	if (reg & 0xff000000) {
341 		size = (reg >> 24) & 0x3f;
342 		offset = (reg >> 16) & 0x1f;
343 		mask = ((1 << size) - 1) << offset;
344 		val &= mask;
345 		val >>= offset;
346 	}
347 	return val;
348 }
349 
350 static void
351 emu_wrptr(struct sc_info *sc, int chn, int reg, u_int32_t data)
352 {
353 	u_int32_t ptr, mask, size, offset;
354 
355 	ptr = ((reg << 16) & sc->addrmask) | (chn & EMU_PTR_CHNO_MASK);
356 	emu_wr(sc, EMU_PTR, ptr, 4);
357 	if (reg & 0xff000000) {
358 		size = (reg >> 24) & 0x3f;
359 		offset = (reg >> 16) & 0x1f;
360 		mask = ((1 << size) - 1) << offset;
361 		data <<= offset;
362 		data &= mask;
363 		data |= emu_rd(sc, EMU_DATA, 4) & ~mask;
364 	}
365 	emu_wr(sc, EMU_DATA, data, 4);
366 }
367 
368 static void
369 emu_wrefx(struct sc_info *sc, unsigned int pc, unsigned int data)
370 {
371 	pc += sc->audigy ? EMU_A_MICROCODEBASE : EMU_MICROCODEBASE;
372 	emu_wrptr(sc, 0, pc, data);
373 }
374 
375 /* -------------------------------------------------------------------- */
376 /* ac97 codec */
377 /* no locking needed */
378 
379 static int
380 emu_rdcd(kobj_t obj, void *devinfo, int regno)
381 {
382 	struct sc_info *sc = (struct sc_info *)devinfo;
383 
384 	emu_wr(sc, EMU_AC97ADDR, regno, 1);
385 	return emu_rd(sc, EMU_AC97DATA, 2);
386 }
387 
388 static int
389 emu_wrcd(kobj_t obj, void *devinfo, int regno, u_int32_t data)
390 {
391 	struct sc_info *sc = (struct sc_info *)devinfo;
392 
393 	emu_wr(sc, EMU_AC97ADDR, regno, 1);
394 	emu_wr(sc, EMU_AC97DATA, data, 2);
395 	return 0;
396 }
397 
398 static kobj_method_t emu_ac97_methods[] = {
399 	KOBJMETHOD(ac97_read,		emu_rdcd),
400 	KOBJMETHOD(ac97_write,		emu_wrcd),
401 	KOBJMETHOD_END
402 };
403 AC97_DECLARE(emu_ac97);
404 
405 /* -------------------------------------------------------------------- */
406 /* stuff */
407 static int
408 emu_settimer(struct sc_info *sc)
409 {
410 	struct sc_pchinfo *pch;
411 	struct sc_rchinfo *rch;
412 	int i, tmp, rate;
413 
414 	rate = 0;
415 	for (i = 0; i < sc->nchans; i++) {
416 		pch = &sc->pch[i];
417 		if (pch->buffer) {
418 			tmp = (pch->spd * sndbuf_getalign(pch->buffer))
419 			    / pch->blksz;
420 			if (tmp > rate)
421 				rate = tmp;
422 		}
423 	}
424 
425 	for (i = 0; i < 3; i++) {
426 		rch = &sc->rch[i];
427 		if (rch->buffer) {
428 			tmp = (rch->spd * sndbuf_getalign(rch->buffer))
429 			    / rch->blksz;
430 			if (tmp > rate)
431 				rate = tmp;
432 		}
433 	}
434 	RANGE(rate, 48, 9600);
435 	sc->timerinterval = 48000 / rate;
436 	emu_wr(sc, EMU_TIMER, sc->timerinterval & 0x03ff, 2);
437 
438 	return sc->timerinterval;
439 }
440 
441 static int
442 emu_enatimer(struct sc_info *sc, int go)
443 {
444 	u_int32_t x;
445 	if (go) {
446 		if (sc->timer++ == 0) {
447 			x = emu_rd(sc, EMU_INTE, 4);
448 			x |= EMU_INTE_INTERTIMERENB;
449 			emu_wr(sc, EMU_INTE, x, 4);
450 		}
451 	} else {
452 		sc->timer = 0;
453 		x = emu_rd(sc, EMU_INTE, 4);
454 		x &= ~EMU_INTE_INTERTIMERENB;
455 		emu_wr(sc, EMU_INTE, x, 4);
456 	}
457 	return 0;
458 }
459 
460 static void
461 emu_enastop(struct sc_info *sc, char channel, int enable)
462 {
463 	int reg = (channel & 0x20) ? EMU_SOLEH : EMU_SOLEL;
464 	channel &= 0x1f;
465 	reg |= 1 << 24;
466 	reg |= channel << 16;
467 	emu_wrptr(sc, 0, reg, enable);
468 }
469 
470 static int
471 emu_recval(int speed) {
472 	int val;
473 
474 	val = 0;
475 	while (val < 7 && speed < adcspeed[val])
476 		val++;
477 	return val;
478 }
479 
480 static int
481 audigy_recval(int speed) {
482 	int val;
483 
484 	val = 0;
485 	while (val < 8 && speed < audigy_adcspeed[val])
486 		val++;
487 	return val;
488 }
489 
490 static u_int32_t
491 emu_rate_to_pitch(u_int32_t rate)
492 {
493 	static u_int32_t logMagTable[128] = {
494 		0x00000, 0x02dfc, 0x05b9e, 0x088e6, 0x0b5d6, 0x0e26f, 0x10eb3, 0x13aa2,
495 		0x1663f, 0x1918a, 0x1bc84, 0x1e72e, 0x2118b, 0x23b9a, 0x2655d, 0x28ed5,
496 		0x2b803, 0x2e0e8, 0x30985, 0x331db, 0x359eb, 0x381b6, 0x3a93d, 0x3d081,
497 		0x3f782, 0x41e42, 0x444c1, 0x46b01, 0x49101, 0x4b6c4, 0x4dc49, 0x50191,
498 		0x5269e, 0x54b6f, 0x57006, 0x59463, 0x5b888, 0x5dc74, 0x60029, 0x623a7,
499 		0x646ee, 0x66a00, 0x68cdd, 0x6af86, 0x6d1fa, 0x6f43c, 0x7164b, 0x73829,
500 		0x759d4, 0x77b4f, 0x79c9a, 0x7bdb5, 0x7dea1, 0x7ff5e, 0x81fed, 0x8404e,
501 		0x86082, 0x88089, 0x8a064, 0x8c014, 0x8df98, 0x8fef1, 0x91e20, 0x93d26,
502 		0x95c01, 0x97ab4, 0x9993e, 0x9b79f, 0x9d5d9, 0x9f3ec, 0xa11d8, 0xa2f9d,
503 		0xa4d3c, 0xa6ab5, 0xa8808, 0xaa537, 0xac241, 0xadf26, 0xafbe7, 0xb1885,
504 		0xb3500, 0xb5157, 0xb6d8c, 0xb899f, 0xba58f, 0xbc15e, 0xbdd0c, 0xbf899,
505 		0xc1404, 0xc2f50, 0xc4a7b, 0xc6587, 0xc8073, 0xc9b3f, 0xcb5ed, 0xcd07c,
506 		0xceaec, 0xd053f, 0xd1f73, 0xd398a, 0xd5384, 0xd6d60, 0xd8720, 0xda0c3,
507 		0xdba4a, 0xdd3b4, 0xded03, 0xe0636, 0xe1f4e, 0xe384a, 0xe512c, 0xe69f3,
508 		0xe829f, 0xe9b31, 0xeb3a9, 0xecc08, 0xee44c, 0xefc78, 0xf148a, 0xf2c83,
509 		0xf4463, 0xf5c2a, 0xf73da, 0xf8b71, 0xfa2f0, 0xfba57, 0xfd1a7, 0xfe8df
510 	};
511 	static char logSlopeTable[128] = {
512 		0x5c, 0x5c, 0x5b, 0x5a, 0x5a, 0x59, 0x58, 0x58,
513 		0x57, 0x56, 0x56, 0x55, 0x55, 0x54, 0x53, 0x53,
514 		0x52, 0x52, 0x51, 0x51, 0x50, 0x50, 0x4f, 0x4f,
515 		0x4e, 0x4d, 0x4d, 0x4d, 0x4c, 0x4c, 0x4b, 0x4b,
516 		0x4a, 0x4a, 0x49, 0x49, 0x48, 0x48, 0x47, 0x47,
517 		0x47, 0x46, 0x46, 0x45, 0x45, 0x45, 0x44, 0x44,
518 		0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x41, 0x41,
519 		0x41, 0x40, 0x40, 0x40, 0x3f, 0x3f, 0x3f, 0x3e,
520 		0x3e, 0x3e, 0x3d, 0x3d, 0x3d, 0x3c, 0x3c, 0x3c,
521 		0x3b, 0x3b, 0x3b, 0x3b, 0x3a, 0x3a, 0x3a, 0x39,
522 		0x39, 0x39, 0x39, 0x38, 0x38, 0x38, 0x38, 0x37,
523 		0x37, 0x37, 0x37, 0x36, 0x36, 0x36, 0x36, 0x35,
524 		0x35, 0x35, 0x35, 0x34, 0x34, 0x34, 0x34, 0x34,
525 		0x33, 0x33, 0x33, 0x33, 0x32, 0x32, 0x32, 0x32,
526 		0x32, 0x31, 0x31, 0x31, 0x31, 0x31, 0x30, 0x30,
527 		0x30, 0x30, 0x30, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f
528 	};
529 	int i;
530 
531 	if (rate == 0)
532 		return 0;	/* Bail out if no leading "1" */
533 	rate *= 11185;	/* Scale 48000 to 0x20002380 */
534 	for (i = 31; i > 0; i--) {
535 		if (rate & 0x80000000) {	/* Detect leading "1" */
536 			return (((u_int32_t) (i - 15) << 20) +
537 			    logMagTable[0x7f & (rate >> 24)] +
538 			    (0x7f & (rate >> 17)) *
539 			    logSlopeTable[0x7f & (rate >> 24)]);
540 		}
541 		rate <<= 1;
542 	}
543 
544 	return 0;		/* Should never reach this point */
545 }
546 
547 static u_int32_t
548 emu_rate_to_linearpitch(u_int32_t rate)
549 {
550 	rate = (rate << 8) / 375;
551 	return (rate >> 1) + (rate & 1);
552 }
553 
554 static struct emu_voice *
555 emu_valloc(struct sc_info *sc)
556 {
557 	struct emu_voice *v;
558 	int i;
559 
560 	v = NULL;
561 	for (i = 0; i < 64 && sc->voice[i].busy; i++);
562 	if (i < 64) {
563 		v = &sc->voice[i];
564 		v->busy = 1;
565 	}
566 	return v;
567 }
568 
569 static int
570 emu_vinit(struct sc_info *sc, struct emu_voice *m, struct emu_voice *s,
571 	  u_int32_t sz, struct snd_dbuf *b)
572 {
573 	void *buf;
574 	bus_addr_t tmp_addr;
575 
576 	buf = emu_memalloc(sc, sz, &tmp_addr);
577 	if (buf == NULL)
578 		return -1;
579 	if (b != NULL)
580 		sndbuf_setup(b, buf, sz);
581 	m->start = emu_memstart(sc, buf) * EMUPAGESIZE;
582 	m->end = m->start + sz;
583 	m->channel = NULL;
584 	m->speed = 0;
585 	m->b16 = 0;
586 	m->stereo = 0;
587 	m->running = 0;
588 	m->ismaster = 1;
589 	m->vol = 0xff;
590 	m->buf = tmp_addr;
591 	m->slave = s;
592 	if (sc->audigy) {
593 		m->fxrt1 = FXBUS_MIDI_CHORUS | FXBUS_PCM_RIGHT << 8 |
594 		    FXBUS_PCM_LEFT << 16 | FXBUS_MIDI_REVERB << 24;
595 		m->fxrt2 = 0x3f3f3f3f;	/* No effects on second route */
596 	} else {
597 		m->fxrt1 = FXBUS_MIDI_CHORUS | FXBUS_PCM_RIGHT << 4 |
598 		    FXBUS_PCM_LEFT << 8 | FXBUS_MIDI_REVERB << 12;
599 		m->fxrt2 = 0;
600 	}
601 
602 	if (s != NULL) {
603 		s->start = m->start;
604 		s->end = m->end;
605 		s->channel = NULL;
606 		s->speed = 0;
607 		s->b16 = 0;
608 		s->stereo = 0;
609 		s->running = 0;
610 		s->ismaster = 0;
611 		s->vol = m->vol;
612 		s->buf = m->buf;
613 		s->fxrt1 = m->fxrt1;
614 		s->fxrt2 = m->fxrt2;
615 		s->slave = NULL;
616 	}
617 	return 0;
618 }
619 
620 static void
621 emu_vsetup(struct sc_pchinfo *ch)
622 {
623 	struct emu_voice *v = ch->master;
624 
625 	if (ch->fmt) {
626 		v->b16 = (ch->fmt & AFMT_16BIT) ? 1 : 0;
627 		v->stereo = (AFMT_CHANNEL(ch->fmt) > 1) ? 1 : 0;
628 		if (v->slave != NULL) {
629 			v->slave->b16 = v->b16;
630 			v->slave->stereo = v->stereo;
631 		}
632 	}
633 	if (ch->spd) {
634 		v->speed = ch->spd;
635 		if (v->slave != NULL)
636 			v->slave->speed = v->speed;
637 	}
638 }
639 
640 static void
641 emu_vwrite(struct sc_info *sc, struct emu_voice *v)
642 {
643 	int s;
644 	int l, r, x, y;
645 	u_int32_t sa, ea, start, val, silent_page;
646 
647 	s = (v->stereo ? 1 : 0) + (v->b16 ? 1 : 0);
648 
649 	sa = v->start >> s;
650 	ea = v->end >> s;
651 
652 	l = r = x = y = v->vol;
653 	if (v->stereo) {
654 		l = v->ismaster ? l : 0;
655 		r = v->ismaster ? 0 : r;
656 	}
657 
658 	emu_wrptr(sc, v->vnum, EMU_CHAN_CPF, v->stereo ? EMU_CHAN_CPF_STEREO_MASK : 0);
659 	val = v->stereo ? 28 : 30;
660 	val *= v->b16 ? 1 : 2;
661 	start = sa + val;
662 
663 	if (sc->audigy) {
664 		emu_wrptr(sc, v->vnum, EMU_A_CHAN_FXRT1, v->fxrt1);
665 		emu_wrptr(sc, v->vnum, EMU_A_CHAN_FXRT2, v->fxrt2);
666 		emu_wrptr(sc, v->vnum, EMU_A_CHAN_SENDAMOUNTS, 0);
667 	}
668 	else
669 		emu_wrptr(sc, v->vnum, EMU_CHAN_FXRT, v->fxrt1 << 16);
670 
671 	emu_wrptr(sc, v->vnum, EMU_CHAN_PTRX, (x << 8) | r);
672 	emu_wrptr(sc, v->vnum, EMU_CHAN_DSL, ea | (y << 24));
673 	emu_wrptr(sc, v->vnum, EMU_CHAN_PSST, sa | (l << 24));
674 	emu_wrptr(sc, v->vnum, EMU_CHAN_CCCA, start | (v->b16 ? 0 : EMU_CHAN_CCCA_8BITSELECT));
675 
676 	emu_wrptr(sc, v->vnum, EMU_CHAN_Z1, 0);
677 	emu_wrptr(sc, v->vnum, EMU_CHAN_Z2, 0);
678 
679 	silent_page = ((u_int32_t)(sc->mem.silent_page_addr) << 1)
680 	    | EMU_CHAN_MAP_PTI_MASK;
681 	emu_wrptr(sc, v->vnum, EMU_CHAN_MAPA, silent_page);
682 	emu_wrptr(sc, v->vnum, EMU_CHAN_MAPB, silent_page);
683 
684 	emu_wrptr(sc, v->vnum, EMU_CHAN_CVCF, EMU_CHAN_CVCF_CURRFILTER_MASK);
685 	emu_wrptr(sc, v->vnum, EMU_CHAN_VTFT, EMU_CHAN_VTFT_FILTERTARGET_MASK);
686 	emu_wrptr(sc, v->vnum, EMU_CHAN_ATKHLDM, 0);
687 	emu_wrptr(sc, v->vnum, EMU_CHAN_DCYSUSM, EMU_CHAN_DCYSUSM_DECAYTIME_MASK);
688 	emu_wrptr(sc, v->vnum, EMU_CHAN_LFOVAL1, 0x8000);
689 	emu_wrptr(sc, v->vnum, EMU_CHAN_LFOVAL2, 0x8000);
690 	emu_wrptr(sc, v->vnum, EMU_CHAN_FMMOD, 0);
691 	emu_wrptr(sc, v->vnum, EMU_CHAN_TREMFRQ, 0);
692 	emu_wrptr(sc, v->vnum, EMU_CHAN_FM2FRQ2, 0);
693 	emu_wrptr(sc, v->vnum, EMU_CHAN_ENVVAL, 0x8000);
694 
695 	emu_wrptr(sc, v->vnum, EMU_CHAN_ATKHLDV,
696 	    EMU_CHAN_ATKHLDV_HOLDTIME_MASK | EMU_CHAN_ATKHLDV_ATTACKTIME_MASK);
697 	emu_wrptr(sc, v->vnum, EMU_CHAN_ENVVOL, 0x8000);
698 
699 	emu_wrptr(sc, v->vnum, EMU_CHAN_PEFE_FILTERAMOUNT, 0x7f);
700 	emu_wrptr(sc, v->vnum, EMU_CHAN_PEFE_PITCHAMOUNT, 0);
701 
702 	if (v->slave != NULL)
703 		emu_vwrite(sc, v->slave);
704 }
705 
706 static void
707 emu_vtrigger(struct sc_info *sc, struct emu_voice *v, int go)
708 {
709 	u_int32_t pitch_target, initial_pitch;
710 	u_int32_t cra, cs, ccis;
711 	u_int32_t sample, i;
712 
713 	if (go) {
714 		cra = 64;
715 		cs = v->stereo ? 4 : 2;
716 		ccis = v->stereo ? 28 : 30;
717 		ccis *= v->b16 ? 1 : 2;
718 		sample = v->b16 ? 0x00000000 : 0x80808080;
719 
720 		for (i = 0; i < cs; i++)
721 			emu_wrptr(sc, v->vnum, EMU_CHAN_CD0 + i, sample);
722 		emu_wrptr(sc, v->vnum, EMU_CHAN_CCR_CACHEINVALIDSIZE, 0);
723 		emu_wrptr(sc, v->vnum, EMU_CHAN_CCR_READADDRESS, cra);
724 		emu_wrptr(sc, v->vnum, EMU_CHAN_CCR_CACHEINVALIDSIZE, ccis);
725 
726 		emu_wrptr(sc, v->vnum, EMU_CHAN_IFATN, 0xff00);
727 		emu_wrptr(sc, v->vnum, EMU_CHAN_VTFT, 0xffffffff);
728 		emu_wrptr(sc, v->vnum, EMU_CHAN_CVCF, 0xffffffff);
729 		emu_wrptr(sc, v->vnum, EMU_CHAN_DCYSUSV, 0x00007f7f);
730 		emu_enastop(sc, v->vnum, 0);
731 
732 		pitch_target = emu_rate_to_linearpitch(v->speed);
733 		initial_pitch = emu_rate_to_pitch(v->speed) >> 8;
734 		emu_wrptr(sc, v->vnum, EMU_CHAN_PTRX_PITCHTARGET, pitch_target);
735 		emu_wrptr(sc, v->vnum, EMU_CHAN_CPF_PITCH, pitch_target);
736 		emu_wrptr(sc, v->vnum, EMU_CHAN_IP, initial_pitch);
737 	} else {
738 		emu_wrptr(sc, v->vnum, EMU_CHAN_PTRX_PITCHTARGET, 0);
739 		emu_wrptr(sc, v->vnum, EMU_CHAN_CPF_PITCH, 0);
740 		emu_wrptr(sc, v->vnum, EMU_CHAN_IFATN, 0xffff);
741 		emu_wrptr(sc, v->vnum, EMU_CHAN_VTFT, 0x0000ffff);
742 		emu_wrptr(sc, v->vnum, EMU_CHAN_CVCF, 0x0000ffff);
743 		emu_wrptr(sc, v->vnum, EMU_CHAN_IP, 0);
744 		emu_enastop(sc, v->vnum, 1);
745 	}
746 	if (v->slave != NULL)
747 		emu_vtrigger(sc, v->slave, go);
748 }
749 
750 static int
751 emu_vpos(struct sc_info *sc, struct emu_voice *v)
752 {
753 	int s, ptr;
754 
755 	s = (v->b16 ? 1 : 0) + (v->stereo ? 1 : 0);
756 	ptr = (emu_rdptr(sc, v->vnum, EMU_CHAN_CCCA_CURRADDR) - (v->start >> s)) << s;
757 	return ptr & ~0x0000001f;
758 }
759 
760 #ifdef EMUDEBUG
761 static void
762 emu_vdump(struct sc_info *sc, struct emu_voice *v)
763 {
764 	char *regname[] = {
765 		"cpf", "ptrx", "cvcf", "vtft", "z2", "z1", "psst", "dsl",
766 		"ccca", "ccr", "clp", "fxrt", "mapa", "mapb", NULL, NULL,
767 		"envvol", "atkhldv", "dcysusv", "lfoval1",
768 		"envval", "atkhldm", "dcysusm", "lfoval2",
769 		"ip", "ifatn", "pefe", "fmmod", "tremfrq", "fmfrq2",
770 		"tempenv"
771 	};
772 	char *regname2[] = {
773 		"mudata1", "mustat1", "mudata2", "mustat2",
774 		"fxwc1", "fxwc2", "spdrate", NULL, NULL,
775 		NULL, NULL, NULL, "fxrt2", "sndamnt", "fxrt1",
776 		NULL, NULL
777 	};
778 	int i, x;
779 
780 	printf("voice number %d\n", v->vnum);
781 	for (i = 0, x = 0; i <= 0x1e; i++) {
782 		if (regname[i] == NULL)
783 			continue;
784 		printf("%s\t[%08x]", regname[i], emu_rdptr(sc, v->vnum, i));
785 		printf("%s", (x == 2) ? "\n" : "\t");
786 		x++;
787 		if (x > 2)
788 			x = 0;
789 	}
790 
791 	/* Print out audigy extra registers */
792 	if (sc->audigy) {
793 		for (i = 0; i <= 0xe; i++) {
794 			if (regname2[i] == NULL)
795 				continue;
796 			printf("%s\t[%08x]", regname2[i],
797 			    emu_rdptr(sc, v->vnum, i + 0x70));
798 			printf("%s", (x == 2)? "\n" : "\t");
799 			x++;
800 			if (x > 2)
801 				x = 0;
802 		}
803 	}
804 	printf("\n\n");
805 }
806 #endif
807 
808 /* channel interface */
809 static void *
810 emupchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
811     struct pcm_channel *c, int dir)
812 {
813 	struct sc_info *sc = devinfo;
814 	struct sc_pchinfo *ch;
815 	void *r;
816 
817 	KASSERT(dir == PCMDIR_PLAY, ("emupchan_init: bad direction"));
818 	ch = &sc->pch[sc->pnum++];
819 	ch->buffer = b;
820 	ch->parent = sc;
821 	ch->channel = c;
822 	ch->blksz = sc->bufsz / 2;
823 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
824 	ch->spd = 8000;
825 	snd_mtxlock(sc->lock);
826 	ch->master = emu_valloc(sc);
827 	ch->slave = emu_valloc(sc);
828 	snd_mtxunlock(sc->lock);
829 	r = (emu_vinit(sc, ch->master, ch->slave, sc->bufsz, ch->buffer))
830 	    ? NULL : ch;
831 
832 	return r;
833 }
834 
835 static int
836 emupchan_free(kobj_t obj, void *data)
837 {
838 	struct sc_pchinfo *ch = data;
839 	struct sc_info *sc = ch->parent;
840 	int r;
841 
842 	snd_mtxlock(sc->lock);
843 	r = emu_memfree(sc, sndbuf_getbuf(ch->buffer));
844 	snd_mtxunlock(sc->lock);
845 
846 	return r;
847 }
848 
849 static int
850 emupchan_setformat(kobj_t obj, void *data, u_int32_t format)
851 {
852 	struct sc_pchinfo *ch = data;
853 
854 	ch->fmt = format;
855 	return 0;
856 }
857 
858 static u_int32_t
859 emupchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
860 {
861 	struct sc_pchinfo *ch = data;
862 
863 	ch->spd = speed;
864 	return ch->spd;
865 }
866 
867 static u_int32_t
868 emupchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
869 {
870 	struct sc_pchinfo *ch = data;
871 	struct sc_info *sc = ch->parent;
872 	int irqrate, blksz;
873 
874 	ch->blksz = blocksize;
875 	snd_mtxlock(sc->lock);
876 	emu_settimer(sc);
877 	irqrate = 48000 / sc->timerinterval;
878 	snd_mtxunlock(sc->lock);
879 	blksz = (ch->spd * sndbuf_getalign(ch->buffer)) / irqrate;
880 	return blocksize;
881 }
882 
883 static int
884 emupchan_trigger(kobj_t obj, void *data, int go)
885 {
886 	struct sc_pchinfo *ch = data;
887 	struct sc_info *sc = ch->parent;
888 
889 	if (!PCMTRIG_COMMON(go))
890 		return 0;
891 
892 	snd_mtxlock(sc->lock);
893 	if (go == PCMTRIG_START) {
894 		emu_vsetup(ch);
895 		emu_vwrite(sc, ch->master);
896 		emu_settimer(sc);
897 		emu_enatimer(sc, 1);
898 #ifdef EMUDEBUG
899 		printf("start [%d bit, %s, %d hz]\n",
900 			ch->master->b16 ? 16 : 8,
901 			ch->master->stereo ? "stereo" : "mono",
902 			ch->master->speed);
903 		emu_vdump(sc, ch->master);
904 		emu_vdump(sc, ch->slave);
905 #endif
906 	}
907 	ch->run = (go == PCMTRIG_START) ? 1 : 0;
908 	emu_vtrigger(sc, ch->master, ch->run);
909 	snd_mtxunlock(sc->lock);
910 	return 0;
911 }
912 
913 static u_int32_t
914 emupchan_getptr(kobj_t obj, void *data)
915 {
916 	struct sc_pchinfo *ch = data;
917 	struct sc_info *sc = ch->parent;
918 	int r;
919 
920 	snd_mtxlock(sc->lock);
921 	r = emu_vpos(sc, ch->master);
922 	snd_mtxunlock(sc->lock);
923 
924 	return r;
925 }
926 
927 static struct pcmchan_caps *
928 emupchan_getcaps(kobj_t obj, void *data)
929 {
930 	return &emu_playcaps;
931 }
932 
933 static kobj_method_t emupchan_methods[] = {
934 	KOBJMETHOD(channel_init,		emupchan_init),
935 	KOBJMETHOD(channel_free,		emupchan_free),
936 	KOBJMETHOD(channel_setformat,		emupchan_setformat),
937 	KOBJMETHOD(channel_setspeed,		emupchan_setspeed),
938 	KOBJMETHOD(channel_setblocksize,	emupchan_setblocksize),
939 	KOBJMETHOD(channel_trigger,		emupchan_trigger),
940 	KOBJMETHOD(channel_getptr,		emupchan_getptr),
941 	KOBJMETHOD(channel_getcaps,		emupchan_getcaps),
942 	KOBJMETHOD_END
943 };
944 CHANNEL_DECLARE(emupchan);
945 
946 /* channel interface */
947 static void *
948 emurchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
949     struct pcm_channel *c, int dir)
950 {
951 	struct sc_info *sc = devinfo;
952 	struct sc_rchinfo *ch;
953 
954 	KASSERT(dir == PCMDIR_REC, ("emurchan_init: bad direction"));
955 	ch = &sc->rch[sc->rnum];
956 	ch->buffer = b;
957 	ch->parent = sc;
958 	ch->channel = c;
959 	ch->blksz = sc->bufsz / 2;
960 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
961 	ch->spd = 8000;
962 	ch->num = sc->rnum;
963 	switch(sc->rnum) {
964 	case 0:
965 		ch->idxreg = sc->audigy ? EMU_A_ADCIDX : EMU_ADCIDX;
966 		ch->basereg = EMU_ADCBA;
967 		ch->sizereg = EMU_ADCBS;
968 		ch->setupreg = EMU_ADCCR;
969 		ch->irqmask = EMU_INTE_ADCBUFENABLE;
970 		break;
971 
972 	case 1:
973 		ch->idxreg = EMU_FXIDX;
974 		ch->basereg = EMU_FXBA;
975 		ch->sizereg = EMU_FXBS;
976 		ch->setupreg = EMU_FXWC;
977 		ch->irqmask = EMU_INTE_EFXBUFENABLE;
978 		break;
979 
980 	case 2:
981 		ch->idxreg = EMU_MICIDX;
982 		ch->basereg = EMU_MICBA;
983 		ch->sizereg = EMU_MICBS;
984 		ch->setupreg = 0;
985 		ch->irqmask = EMU_INTE_MICBUFENABLE;
986 		break;
987 	}
988 	sc->rnum++;
989 	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsz) != 0)
990 		return NULL;
991 	else {
992 		snd_mtxlock(sc->lock);
993 		emu_wrptr(sc, 0, ch->basereg, sndbuf_getbufaddr(ch->buffer));
994 		emu_wrptr(sc, 0, ch->sizereg, 0); /* off */
995 		snd_mtxunlock(sc->lock);
996 		return ch;
997 	}
998 }
999 
1000 static int
1001 emurchan_setformat(kobj_t obj, void *data, u_int32_t format)
1002 {
1003 	struct sc_rchinfo *ch = data;
1004 
1005 	ch->fmt = format;
1006 	return 0;
1007 }
1008 
1009 static u_int32_t
1010 emurchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
1011 {
1012 	struct sc_rchinfo *ch = data;
1013 
1014 	if (ch->num == 0) {
1015 		if (ch->parent->audigy)
1016 			speed = audigy_adcspeed[audigy_recval(speed)];
1017 		else
1018 			speed = adcspeed[emu_recval(speed)];
1019 	}
1020 	if (ch->num == 1)
1021 		speed = 48000;
1022 	if (ch->num == 2)
1023 		speed = 8000;
1024 	ch->spd = speed;
1025 	return ch->spd;
1026 }
1027 
1028 static u_int32_t
1029 emurchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
1030 {
1031 	struct sc_rchinfo *ch = data;
1032 	struct sc_info *sc = ch->parent;
1033 	int irqrate, blksz;
1034 
1035 	ch->blksz = blocksize;
1036 	snd_mtxlock(sc->lock);
1037 	emu_settimer(sc);
1038 	irqrate = 48000 / sc->timerinterval;
1039 	snd_mtxunlock(sc->lock);
1040 	blksz = (ch->spd * sndbuf_getalign(ch->buffer)) / irqrate;
1041 	return blocksize;
1042 }
1043 
1044 /* semantic note: must start at beginning of buffer */
1045 static int
1046 emurchan_trigger(kobj_t obj, void *data, int go)
1047 {
1048 	struct sc_rchinfo *ch = data;
1049 	struct sc_info *sc = ch->parent;
1050 	u_int32_t val, sz;
1051 
1052 	if (!PCMTRIG_COMMON(go))
1053 		return 0;
1054 
1055 	switch(sc->bufsz) {
1056 	case 4096:
1057 		sz = EMU_RECBS_BUFSIZE_4096;
1058 		break;
1059 
1060 	case 8192:
1061 		sz = EMU_RECBS_BUFSIZE_8192;
1062 		break;
1063 
1064 	case 16384:
1065 		sz = EMU_RECBS_BUFSIZE_16384;
1066 		break;
1067 
1068 	case 32768:
1069 		sz = EMU_RECBS_BUFSIZE_32768;
1070 		break;
1071 
1072 	case 65536:
1073 		sz = EMU_RECBS_BUFSIZE_65536;
1074 		break;
1075 
1076 	default:
1077 		sz = EMU_RECBS_BUFSIZE_4096;
1078 	}
1079 
1080 	snd_mtxlock(sc->lock);
1081 	switch(go) {
1082 	case PCMTRIG_START:
1083 		ch->run = 1;
1084 		emu_wrptr(sc, 0, ch->sizereg, sz);
1085 		if (ch->num == 0) {
1086 			if (sc->audigy) {
1087 				val = EMU_A_ADCCR_LCHANENABLE;
1088 				if (AFMT_CHANNEL(ch->fmt) > 1)
1089 					val |= EMU_A_ADCCR_RCHANENABLE;
1090 				val |= audigy_recval(ch->spd);
1091 			} else {
1092 				val = EMU_ADCCR_LCHANENABLE;
1093 				if (AFMT_CHANNEL(ch->fmt) > 1)
1094 					val |= EMU_ADCCR_RCHANENABLE;
1095 				val |= emu_recval(ch->spd);
1096 			}
1097 
1098 			emu_wrptr(sc, 0, ch->setupreg, 0);
1099 			emu_wrptr(sc, 0, ch->setupreg, val);
1100 		}
1101 		val = emu_rd(sc, EMU_INTE, 4);
1102 		val |= ch->irqmask;
1103 		emu_wr(sc, EMU_INTE, val, 4);
1104 		break;
1105 
1106 	case PCMTRIG_STOP:
1107 	case PCMTRIG_ABORT:
1108 		ch->run = 0;
1109 		emu_wrptr(sc, 0, ch->sizereg, 0);
1110 		if (ch->setupreg)
1111 			emu_wrptr(sc, 0, ch->setupreg, 0);
1112 		val = emu_rd(sc, EMU_INTE, 4);
1113 		val &= ~ch->irqmask;
1114 		emu_wr(sc, EMU_INTE, val, 4);
1115 		break;
1116 
1117 	case PCMTRIG_EMLDMAWR:
1118 	case PCMTRIG_EMLDMARD:
1119 	default:
1120 		break;
1121 	}
1122 	snd_mtxunlock(sc->lock);
1123 
1124 	return 0;
1125 }
1126 
1127 static u_int32_t
1128 emurchan_getptr(kobj_t obj, void *data)
1129 {
1130 	struct sc_rchinfo *ch = data;
1131 	struct sc_info *sc = ch->parent;
1132 	int r;
1133 
1134 	snd_mtxlock(sc->lock);
1135 	r = emu_rdptr(sc, 0, ch->idxreg) & 0x0000ffff;
1136 	snd_mtxunlock(sc->lock);
1137 
1138 	return r;
1139 }
1140 
1141 static struct pcmchan_caps *
1142 emurchan_getcaps(kobj_t obj, void *data)
1143 {
1144 	struct sc_rchinfo *ch = data;
1145 
1146 	return &emu_reccaps[ch->num];
1147 }
1148 
1149 static kobj_method_t emurchan_methods[] = {
1150 	KOBJMETHOD(channel_init,		emurchan_init),
1151 	KOBJMETHOD(channel_setformat,		emurchan_setformat),
1152 	KOBJMETHOD(channel_setspeed,		emurchan_setspeed),
1153 	KOBJMETHOD(channel_setblocksize,	emurchan_setblocksize),
1154 	KOBJMETHOD(channel_trigger,		emurchan_trigger),
1155 	KOBJMETHOD(channel_getptr,		emurchan_getptr),
1156 	KOBJMETHOD(channel_getcaps,		emurchan_getcaps),
1157 	KOBJMETHOD_END
1158 };
1159 CHANNEL_DECLARE(emurchan);
1160 
1161 static unsigned char
1162 emu_mread(struct mpu401 *arg, void *sc, int reg)
1163 {
1164 	unsigned int d;
1165 
1166 	d = emu_rd((struct sc_info *)sc, 0x18 + reg, 1);
1167 	return d;
1168 }
1169 
1170 static void
1171 emu_mwrite(struct mpu401 *arg, void *sc, int reg, unsigned char b)
1172 {
1173 
1174 	emu_wr((struct sc_info *)sc, 0x18 + reg, b, 1);
1175 }
1176 
1177 static int
1178 emu_muninit(struct mpu401 *arg, void *cookie)
1179 {
1180 	struct sc_info *sc = cookie;
1181 
1182 	snd_mtxlock(sc->lock);
1183 	sc->mpu_intr = NULL;
1184 	snd_mtxunlock(sc->lock);
1185 
1186 	return 0;
1187 }
1188 
1189 static kobj_method_t emu_mpu_methods[] = {
1190     	KOBJMETHOD(mpufoi_read,		emu_mread),
1191     	KOBJMETHOD(mpufoi_write,	emu_mwrite),
1192     	KOBJMETHOD(mpufoi_uninit,	emu_muninit),
1193 	KOBJMETHOD_END
1194 };
1195 
1196 static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0);
1197 
1198 static void
1199 emu_intr2(void *p)
1200 {
1201 	struct sc_info *sc = (struct sc_info *)p;
1202 
1203 	if (sc->mpu_intr)
1204 	    (sc->mpu_intr)(sc->mpu);
1205 }
1206 
1207 static void
1208 emu_midiattach(struct sc_info *sc)
1209 {
1210 	int i;
1211 
1212 	i = emu_rd(sc, EMU_INTE, 4);
1213 	i |= EMU_INTE_MIDIRXENABLE;
1214 	emu_wr(sc, EMU_INTE, i, 4);
1215 
1216 	sc->mpu = mpu401_init(&emu_mpu_class, sc, emu_intr2, &sc->mpu_intr);
1217 }
1218 /* -------------------------------------------------------------------- */
1219 /* The interrupt handler */
1220 
1221 static void
1222 emu_intr(void *data)
1223 {
1224 	struct sc_info *sc = data;
1225 	u_int32_t stat, ack, i, x;
1226 
1227 	snd_mtxlock(sc->lock);
1228 	while (1) {
1229 		stat = emu_rd(sc, EMU_IPR, 4);
1230 		if (stat == 0)
1231 			break;
1232 		ack = 0;
1233 
1234 		/* process irq */
1235 		if (stat & EMU_IPR_INTERVALTIMER)
1236 			ack |= EMU_IPR_INTERVALTIMER;
1237 
1238 		if (stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL))
1239 			ack |= stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL);
1240 
1241 		if (stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL))
1242 			ack |= stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL);
1243 
1244 		if (stat & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL))
1245 			ack |= stat & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL);
1246 
1247 		if (stat & EMU_PCIERROR) {
1248 			ack |= EMU_PCIERROR;
1249 			device_printf(sc->dev, "pci error\n");
1250 			/* we still get an nmi with ecc ram even if we ack this */
1251 		}
1252 		if (stat & EMU_IPR_RATETRCHANGE) {
1253 			ack |= EMU_IPR_RATETRCHANGE;
1254 #ifdef EMUDEBUG
1255 			device_printf(sc->dev,
1256 			    "sample rate tracker lock status change\n");
1257 #endif
1258 		}
1259 
1260 		if (stat & EMU_IPR_MIDIRECVBUFE) {
1261 			if (sc->mpu_intr) {
1262 				(sc->mpu_intr)(sc->mpu);
1263 				ack |= EMU_IPR_MIDIRECVBUFE | EMU_IPR_MIDITRANSBUFE;
1264 			}
1265 		}
1266 		if (stat & ~ack)
1267 			device_printf(sc->dev, "dodgy irq: %x (harmless)\n",
1268 			    stat & ~ack);
1269 
1270 		emu_wr(sc, EMU_IPR, stat, 4);
1271 
1272 		if (ack) {
1273 			snd_mtxunlock(sc->lock);
1274 
1275 			if (ack & EMU_IPR_INTERVALTIMER) {
1276 				x = 0;
1277 				for (i = 0; i < sc->nchans; i++) {
1278 					if (sc->pch[i].run) {
1279 						x = 1;
1280 						chn_intr(sc->pch[i].channel);
1281 					}
1282 				}
1283 				if (x == 0)
1284 					emu_enatimer(sc, 0);
1285 			}
1286 
1287 			if (ack & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL)) {
1288 				if (sc->rch[0].channel)
1289 					chn_intr(sc->rch[0].channel);
1290 			}
1291 			if (ack & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL)) {
1292 				if (sc->rch[1].channel)
1293 					chn_intr(sc->rch[1].channel);
1294 			}
1295 			if (ack & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL)) {
1296 				if (sc->rch[2].channel)
1297 					chn_intr(sc->rch[2].channel);
1298 			}
1299 
1300 			snd_mtxlock(sc->lock);
1301 		}
1302 	}
1303 	snd_mtxunlock(sc->lock);
1304 }
1305 
1306 /* -------------------------------------------------------------------- */
1307 
1308 static void
1309 emu_setmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1310 {
1311 	bus_addr_t *phys = arg;
1312 
1313 	*phys = error ? 0 : (bus_addr_t)segs->ds_addr;
1314 
1315 	if (bootverbose) {
1316 		printf("emu: setmap (%lx, %lx), nseg=%d, error=%d\n",
1317 		    (unsigned long)segs->ds_addr, (unsigned long)segs->ds_len,
1318 		    nseg, error);
1319 	}
1320 }
1321 
1322 static void *
1323 emu_malloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr,
1324     bus_dmamap_t *map)
1325 {
1326 	void *buf;
1327 
1328 	*addr = 0;
1329 	if (bus_dmamem_alloc(sc->parent_dmat, &buf, BUS_DMA_NOWAIT, map))
1330 		return NULL;
1331 	if (bus_dmamap_load(sc->parent_dmat, *map, buf, sz, emu_setmap, addr,
1332 	    BUS_DMA_NOWAIT) || !*addr) {
1333 		bus_dmamem_free(sc->parent_dmat, buf, *map);
1334 		return NULL;
1335 	}
1336 	return buf;
1337 }
1338 
1339 static void
1340 emu_free(struct sc_info *sc, void *buf, bus_dmamap_t map)
1341 {
1342 	bus_dmamap_unload(sc->parent_dmat, map);
1343 	bus_dmamem_free(sc->parent_dmat, buf, map);
1344 }
1345 
1346 static void *
1347 emu_memalloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr)
1348 {
1349 	u_int32_t blksz, start, idx, ofs, tmp, found;
1350 	struct emu_mem *mem = &sc->mem;
1351 	struct emu_memblk *blk;
1352 	void *buf;
1353 
1354 	blksz = sz / EMUPAGESIZE;
1355 	if (sz > (blksz * EMUPAGESIZE))
1356 		blksz++;
1357 	/* find a free block in the bitmap */
1358 	found = 0;
1359 	start = 1;
1360 	while (!found && start + blksz < EMUMAXPAGES) {
1361 		found = 1;
1362 		for (idx = start; idx < start + blksz; idx++)
1363 			if (mem->bmap[idx >> 3] & (1 << (idx & 7)))
1364 				found = 0;
1365 		if (!found)
1366 			start++;
1367 	}
1368 	if (!found)
1369 		return NULL;
1370 	blk = malloc(sizeof(*blk), M_DEVBUF, M_NOWAIT);
1371 	if (blk == NULL)
1372 		return NULL;
1373 	buf = emu_malloc(sc, sz, &blk->buf_addr, &blk->buf_map);
1374 	*addr = blk->buf_addr;
1375 	if (buf == NULL) {
1376 		free(blk, M_DEVBUF);
1377 		return NULL;
1378 	}
1379 	blk->buf = buf;
1380 	blk->pte_start = start;
1381 	blk->pte_size = blksz;
1382 #ifdef EMUDEBUG
1383 	printf("buf %p, pte_start %d, pte_size %d\n", blk->buf,
1384 	    blk->pte_start, blk->pte_size);
1385 #endif
1386 	ofs = 0;
1387 	for (idx = start; idx < start + blksz; idx++) {
1388 		mem->bmap[idx >> 3] |= 1 << (idx & 7);
1389 		tmp = (uint32_t)(blk->buf_addr + ofs);
1390 #ifdef EMUDEBUG
1391 		printf("pte[%d] -> %x phys, %x virt\n", idx, tmp,
1392 		    ((u_int32_t)buf) + ofs);
1393 #endif
1394 		mem->ptb_pages[idx] = (tmp << 1) | idx;
1395 		ofs += EMUPAGESIZE;
1396 	}
1397 	SLIST_INSERT_HEAD(&mem->blocks, blk, link);
1398 	return buf;
1399 }
1400 
1401 static int
1402 emu_memfree(struct sc_info *sc, void *buf)
1403 {
1404 	u_int32_t idx, tmp;
1405 	struct emu_mem *mem = &sc->mem;
1406 	struct emu_memblk *blk, *i;
1407 
1408 	blk = NULL;
1409 	SLIST_FOREACH(i, &mem->blocks, link) {
1410 		if (i->buf == buf)
1411 			blk = i;
1412 	}
1413 	if (blk == NULL)
1414 		return EINVAL;
1415 	SLIST_REMOVE(&mem->blocks, blk, emu_memblk, link);
1416 	emu_free(sc, buf, blk->buf_map);
1417 	tmp = (u_int32_t)(sc->mem.silent_page_addr) << 1;
1418 	for (idx = blk->pte_start; idx < blk->pte_start + blk->pte_size; idx++) {
1419 		mem->bmap[idx >> 3] &= ~(1 << (idx & 7));
1420 		mem->ptb_pages[idx] = tmp | idx;
1421 	}
1422 	free(blk, M_DEVBUF);
1423 	return 0;
1424 }
1425 
1426 static int
1427 emu_memstart(struct sc_info *sc, void *buf)
1428 {
1429 	struct emu_mem *mem = &sc->mem;
1430 	struct emu_memblk *blk, *i;
1431 
1432 	blk = NULL;
1433 	SLIST_FOREACH(i, &mem->blocks, link) {
1434 		if (i->buf == buf)
1435 			blk = i;
1436 	}
1437 	if (blk == NULL)
1438 		return -EINVAL;
1439 	return blk->pte_start;
1440 }
1441 
1442 static void
1443 emu_addefxop(struct sc_info *sc, int op, int z, int w, int x, int y,
1444     u_int32_t *pc)
1445 {
1446 	emu_wrefx(sc, (*pc) * 2, (x << 10) | y);
1447 	emu_wrefx(sc, (*pc) * 2 + 1, (op << 20) | (z << 10) | w);
1448 	(*pc)++;
1449 }
1450 
1451 static void
1452 audigy_addefxop(struct sc_info *sc, int op, int z, int w, int x, int y,
1453     u_int32_t *pc)
1454 {
1455 	emu_wrefx(sc, (*pc) * 2, (x << 12) | y);
1456 	emu_wrefx(sc, (*pc) * 2 + 1, (op << 24) | (z << 12) | w);
1457 	(*pc)++;
1458 }
1459 
1460 static void
1461 audigy_initefx(struct sc_info *sc)
1462 {
1463 	int i;
1464 	u_int32_t pc = 0;
1465 
1466 	/* skip 0, 0, -1, 0 - NOPs */
1467 	for (i = 0; i < 512; i++)
1468 		audigy_addefxop(sc, 0x0f, 0x0c0, 0x0c0, 0x0cf, 0x0c0, &pc);
1469 
1470 	for (i = 0; i < 512; i++)
1471 		emu_wrptr(sc, 0, EMU_A_FXGPREGBASE + i, 0x0);
1472 
1473 	pc = 16;
1474 
1475 	/* stop fx processor */
1476 	emu_wrptr(sc, 0, EMU_A_DBG, EMU_A_DBG_SINGLE_STEP);
1477 
1478 	/* Audigy 2 (EMU10K2) DSP Registers:
1479 	   FX Bus
1480 		0x000-0x00f : 16 registers (?)
1481 	   Input
1482 		0x040/0x041 : AC97 Codec (l/r)
1483 		0x042/0x043 : ADC, S/PDIF (l/r)
1484 		0x044/0x045 : Optical S/PDIF in (l/r)
1485 		0x046/0x047 : ?
1486 		0x048/0x049 : Line/Mic 2 (l/r)
1487 		0x04a/0x04b : RCA S/PDIF (l/r)
1488 		0x04c/0x04d : Aux 2 (l/r)
1489 	   Output
1490 		0x060/0x061 : Digital Front (l/r)
1491 		0x062/0x063 : Digital Center/LFE
1492 		0x064/0x065 : AudigyDrive Heaphone (l/r)
1493 		0x066/0x067 : Digital Rear (l/r)
1494 		0x068/0x069 : Analog Front (l/r)
1495 		0x06a/0x06b : Analog Center/LFE
1496 		0x06c/0x06d : ?
1497 		0x06e/0x06f : Analog Rear (l/r)
1498 		0x070/0x071 : AC97 Output (l/r)
1499 		0x072/0x073 : ?
1500 		0x074/0x075 : ?
1501 		0x076/0x077 : ADC Recording Buffer (l/r)
1502 	   Constants
1503 		0x0c0 - 0x0c4 = 0 - 4
1504 		0x0c5 = 0x8, 0x0c6 = 0x10, 0x0c7 = 0x20
1505 		0x0c8 = 0x100, 0x0c9 = 0x10000, 0x0ca = 0x80000
1506 		0x0cb = 0x10000000, 0x0cc = 0x20000000, 0x0cd = 0x40000000
1507 		0x0ce = 0x80000000, 0x0cf = 0x7fffffff, 0x0d0 = 0xffffffff
1508 		0x0d1 = 0xfffffffe, 0x0d2 = 0xc0000000, 0x0d3 = 0x41fbbcdc
1509 		0x0d4 = 0x5a7ef9db, 0x0d5 = 0x00100000, 0x0dc = 0x00000001 (?)
1510 	   Temporary Values
1511 		0x0d6 : Accumulator (?)
1512 		0x0d7 : Condition Register
1513 		0x0d8 : Noise source
1514 		0x0d9 : Noise source
1515 	   Tank Memory Data Registers
1516 		0x200 - 0x2ff
1517 	   Tank Memory Address Registers
1518 		0x300 - 0x3ff
1519 	   General Purpose Registers
1520 		0x400 - 0x5ff
1521 	 */
1522 
1523 	/* AC97Output[l/r] = FXBus PCM[l/r] */
1524 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AC97_L), A_C_00000000,
1525 			A_C_00000000, A_FXBUS(FXBUS_PCM_LEFT), &pc);
1526 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AC97_R), A_C_00000000,
1527 			A_C_00000000, A_FXBUS(FXBUS_PCM_RIGHT), &pc);
1528 
1529 	/* GPR[0/1] = RCA S/PDIF[l/r] -- Master volume */
1530 	audigy_addefxop(sc, iACC3, A_GPR(0), A_C_00000000,
1531 			A_C_00000000, A_EXTIN(EXTIN_COAX_SPDIF_L), &pc);
1532 	audigy_addefxop(sc, iACC3, A_GPR(1), A_C_00000000,
1533 			A_C_00000000, A_EXTIN(EXTIN_COAX_SPDIF_R), &pc);
1534 
1535 	/* GPR[2] = GPR[0] (Left) / 2 + GPR[1] (Right) / 2 -- Central volume */
1536 	audigy_addefxop(sc, iINTERP, A_GPR(2), A_GPR(1),
1537 			A_C_40000000, A_GPR(0), &pc);
1538 
1539 	/* Headphones[l/r] = GPR[0/1] */
1540 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_HEADPHONE_L),
1541 			A_C_00000000, A_C_00000000, A_GPR(0), &pc);
1542 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_HEADPHONE_R),
1543 			A_C_00000000, A_C_00000000, A_GPR(1), &pc);
1544 
1545 	/* Analog Front[l/r] = GPR[0/1] */
1546 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AFRONT_L), A_C_00000000,
1547 			A_C_00000000, A_GPR(0), &pc);
1548 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AFRONT_R), A_C_00000000,
1549 			A_C_00000000, A_GPR(1), &pc);
1550 
1551 	/* Digital Front[l/r] = GPR[0/1] */
1552 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_FRONT_L), A_C_00000000,
1553 			A_C_00000000, A_GPR(0), &pc);
1554 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_FRONT_R), A_C_00000000,
1555 			A_C_00000000, A_GPR(1), &pc);
1556 
1557 	/* Center and Subwoofer configuration */
1558 	/* Analog Center = GPR[0] + GPR[2] */
1559 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ACENTER), A_C_00000000,
1560 			A_GPR(0), A_GPR(2), &pc);
1561 	/* Analog Sub = GPR[1] + GPR[2] */
1562 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ALFE), A_C_00000000,
1563 			A_GPR(1), A_GPR(2), &pc);
1564 
1565 	/* Digital Center = GPR[0] + GPR[2] */
1566 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_CENTER), A_C_00000000,
1567 			A_GPR(0), A_GPR(2), &pc);
1568 	/* Digital Sub = GPR[1] + GPR[2] */
1569 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_LFE), A_C_00000000,
1570 			A_GPR(1), A_GPR(2), &pc);
1571 
1572 #if 0
1573 	/* Analog Rear[l/r] = (GPR[0/1] * RearVolume[l/r]) >> 31 */
1574 	/*   RearVolume = GPR[0x10/0x11] (Will this ever be implemented?) */
1575 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_AREAR_L), A_C_00000000,
1576 			A_GPR(16), A_GPR(0), &pc);
1577 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_AREAR_R), A_C_00000000,
1578 			A_GPR(17), A_GPR(1), &pc);
1579 
1580 	/* Digital Rear[l/r] = (GPR[0/1] * RearVolume[l/r]) >> 31 */
1581 	/*   RearVolume = GPR[0x10/0x11] (Will this ever be implemented?) */
1582 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_REAR_L), A_C_00000000,
1583 			A_GPR(16), A_GPR(0), &pc);
1584 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_REAR_R), A_C_00000000,
1585 			A_GPR(17), A_GPR(1), &pc);
1586 #else
1587 	/* XXX This is just a copy to the channel, since we do not have
1588 	 *     a patch manager, it is useful for have another output enabled.
1589 	 */
1590 
1591 	/* Analog Rear[l/r] = GPR[0/1] */
1592 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AREAR_L), A_C_00000000,
1593 			A_C_00000000, A_GPR(0), &pc);
1594 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AREAR_R), A_C_00000000,
1595 			A_C_00000000, A_GPR(1), &pc);
1596 
1597 	/* Digital Rear[l/r] = GPR[0/1] */
1598 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_REAR_L), A_C_00000000,
1599 			A_C_00000000, A_GPR(0), &pc);
1600 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_REAR_R), A_C_00000000,
1601 			A_C_00000000, A_GPR(1), &pc);
1602 #endif
1603 
1604 	/* ADC Recording buffer[l/r] = AC97Input[l/r] */
1605 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ADC_CAP_L), A_C_00000000,
1606 			A_C_00000000, A_EXTIN(A_EXTIN_AC97_L), &pc);
1607 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ADC_CAP_R), A_C_00000000,
1608 			A_C_00000000, A_EXTIN(A_EXTIN_AC97_R), &pc);
1609 
1610 	/* resume normal operations */
1611 	emu_wrptr(sc, 0, EMU_A_DBG, 0);
1612 }
1613 
1614 static void
1615 emu_initefx(struct sc_info *sc)
1616 {
1617 	int i;
1618 	u_int32_t pc = 16;
1619 
1620 	/* acc3 0,0,0,0 - NOPs */
1621 	for (i = 0; i < 512; i++) {
1622 		emu_wrefx(sc, i * 2, 0x10040);
1623 		emu_wrefx(sc, i * 2 + 1, 0x610040);
1624 	}
1625 
1626 	for (i = 0; i < 256; i++)
1627 		emu_wrptr(sc, 0, EMU_FXGPREGBASE + i, 0);
1628 
1629 	/* FX-8010 DSP Registers:
1630 	   FX Bus
1631 	     0x000-0x00f : 16 registers
1632 	   Input
1633 	     0x010/0x011 : AC97 Codec (l/r)
1634 	     0x012/0x013 : ADC, S/PDIF (l/r)
1635 	     0x014/0x015 : Mic(left), Zoom (l/r)
1636 	     0x016/0x017 : TOS link in (l/r)
1637 	     0x018/0x019 : Line/Mic 1 (l/r)
1638 	     0x01a/0x01b : COAX S/PDIF (l/r)
1639 	     0x01c/0x01d : Line/Mic 2 (l/r)
1640 	   Output
1641 	     0x020/0x021 : AC97 Output (l/r)
1642 	     0x022/0x023 : TOS link out (l/r)
1643 	     0x024/0x025 : Center/LFE
1644 	     0x026/0x027 : LiveDrive Headphone (l/r)
1645 	     0x028/0x029 : Rear Channel (l/r)
1646 	     0x02a/0x02b : ADC Recording Buffer (l/r)
1647 	     0x02c       : Mic Recording Buffer
1648 	     0x031/0x032 : Analog Center/LFE
1649 	   Constants
1650 	     0x040 - 0x044 = 0 - 4
1651 	     0x045 = 0x8, 0x046 = 0x10, 0x047 = 0x20
1652 	     0x048 = 0x100, 0x049 = 0x10000, 0x04a = 0x80000
1653 	     0x04b = 0x10000000, 0x04c = 0x20000000, 0x04d = 0x40000000
1654 	     0x04e = 0x80000000, 0x04f = 0x7fffffff, 0x050 = 0xffffffff
1655 	     0x051 = 0xfffffffe, 0x052 = 0xc0000000, 0x053 = 0x41fbbcdc
1656 	     0x054 = 0x5a7ef9db, 0x055 = 0x00100000
1657 	   Temporary Values
1658 	     0x056 : Accumulator
1659 	     0x057 : Condition Register
1660 	     0x058 : Noise source
1661 	     0x059 : Noise source
1662 	     0x05a : IRQ Register
1663 	     0x05b : TRAM Delay Base Address Count
1664 	   General Purpose Registers
1665 	     0x100 - 0x1ff
1666 	   Tank Memory Data Registers
1667 	     0x200 - 0x2ff
1668 	   Tank Memory Address Registers
1669 	     0x300 - 0x3ff
1670 	     */
1671 
1672 	/* Routing - this will be configurable in later version */
1673 
1674 	/* GPR[0/1] = FX * 4 + SPDIF-in */
1675 	emu_addefxop(sc, iMACINT0, GPR(0), EXTIN(EXTIN_SPDIF_CD_L),
1676 			FXBUS(FXBUS_PCM_LEFT), C_00000004, &pc);
1677 	emu_addefxop(sc, iMACINT0, GPR(1), EXTIN(EXTIN_SPDIF_CD_R),
1678 			FXBUS(FXBUS_PCM_RIGHT), C_00000004, &pc);
1679 
1680 	/* GPR[0/1] += APS-input */
1681 	emu_addefxop(sc, iACC3, GPR(0), GPR(0), C_00000000,
1682 			sc->APS ? EXTIN(EXTIN_TOSLINK_L) : C_00000000, &pc);
1683 	emu_addefxop(sc, iACC3, GPR(1), GPR(1), C_00000000,
1684 			sc->APS ? EXTIN(EXTIN_TOSLINK_R) : C_00000000, &pc);
1685 
1686 	/* FrontOut (AC97) = GPR[0/1] */
1687 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_L), C_00000000,
1688 			C_00000000, GPR(0), &pc);
1689 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_R), C_00000000,
1690 			C_00000001, GPR(1), &pc);
1691 
1692 	/* GPR[2] = GPR[0] (Left) / 2 + GPR[1] (Right) / 2 -- Central volume */
1693 	emu_addefxop(sc, iINTERP, GPR(2), GPR(1), C_40000000, GPR(0), &pc);
1694 
1695 #if 0
1696 	/* RearOut = (GPR[0/1] * RearVolume) >> 31 */
1697 	/*   RearVolume = GPR[0x10/0x11] */
1698 	emu_addefxop(sc, iMAC0, EXTOUT(EXTOUT_REAR_L), C_00000000,
1699 			GPR(16), GPR(0), &pc);
1700 	emu_addefxop(sc, iMAC0, EXTOUT(EXTOUT_REAR_R), C_00000000,
1701 			GPR(17), GPR(1), &pc);
1702 #else
1703 	/* XXX This is just a copy to the channel, since we do not have
1704 	 *     a patch manager, it is useful for have another output enabled.
1705 	 */
1706 
1707 	/* Rear[l/r] = GPR[0/1] */
1708 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_REAR_L), C_00000000,
1709 			C_00000000, GPR(0), &pc);
1710 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_REAR_R), C_00000000,
1711 			C_00000000, GPR(1), &pc);
1712 #endif
1713 
1714 	/* TOS out[l/r] = GPR[0/1] */
1715 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_TOSLINK_L), C_00000000,
1716 			C_00000000, GPR(0), &pc);
1717 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_TOSLINK_R), C_00000000,
1718 			C_00000000, GPR(1), &pc);
1719 
1720 	/* Center and Subwoofer configuration */
1721 	/* Analog Center = GPR[0] + GPR[2] */
1722 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ACENTER), C_00000000,
1723 			GPR(0), GPR(2), &pc);
1724 	/* Analog Sub = GPR[1] + GPR[2] */
1725 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ALFE), C_00000000,
1726 			GPR(1), GPR(2), &pc);
1727 	/* Digital Center = GPR[0] + GPR[2] */
1728 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_CENTER), C_00000000,
1729 			GPR(0), GPR(2), &pc);
1730 	/* Digital Sub = GPR[1] + GPR[2] */
1731 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_LFE), C_00000000,
1732 			GPR(1), GPR(2), &pc);
1733 
1734 	/* Headphones[l/r] = GPR[0/1] */
1735 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_HEADPHONE_L), C_00000000,
1736 			C_00000000, GPR(0), &pc);
1737 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_HEADPHONE_R), C_00000000,
1738 			C_00000000, GPR(1), &pc);
1739 
1740 	/* ADC Recording buffer[l/r] = AC97Input[l/r] */
1741 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ADC_CAP_L), C_00000000,
1742 			C_00000000, EXTIN(EXTIN_AC97_L), &pc);
1743 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ADC_CAP_R), C_00000000,
1744 			C_00000000, EXTIN(EXTIN_AC97_R), &pc);
1745 
1746 	/* resume normal operations */
1747 	emu_wrptr(sc, 0, EMU_DBG, 0);
1748 }
1749 
1750 /* Probe and attach the card */
1751 static int
1752 emu_init(struct sc_info *sc)
1753 {
1754 	u_int32_t spcs, ch, tmp, i;
1755 
1756 	if (sc->audigy) {
1757 		/* enable additional AC97 slots */
1758 		emu_wrptr(sc, 0, EMU_AC97SLOT, EMU_AC97SLOT_CENTER | EMU_AC97SLOT_LFE);
1759 	}
1760 
1761 	/* disable audio and lock cache */
1762 	emu_wr(sc, EMU_HCFG,
1763 	    EMU_HCFG_LOCKSOUNDCACHE | EMU_HCFG_LOCKTANKCACHE_MASK | EMU_HCFG_MUTEBUTTONENABLE,
1764 	    4);
1765 
1766 	/* reset recording buffers */
1767 	emu_wrptr(sc, 0, EMU_MICBS, EMU_RECBS_BUFSIZE_NONE);
1768 	emu_wrptr(sc, 0, EMU_MICBA, 0);
1769 	emu_wrptr(sc, 0, EMU_FXBS, EMU_RECBS_BUFSIZE_NONE);
1770 	emu_wrptr(sc, 0, EMU_FXBA, 0);
1771 	emu_wrptr(sc, 0, EMU_ADCBS, EMU_RECBS_BUFSIZE_NONE);
1772 	emu_wrptr(sc, 0, EMU_ADCBA, 0);
1773 
1774 	/* disable channel interrupt */
1775 	emu_wr(sc, EMU_INTE,
1776 	    EMU_INTE_INTERTIMERENB | EMU_INTE_SAMPLERATER | EMU_INTE_PCIERRENABLE,
1777 	    4);
1778 	emu_wrptr(sc, 0, EMU_CLIEL, 0);
1779 	emu_wrptr(sc, 0, EMU_CLIEH, 0);
1780 	emu_wrptr(sc, 0, EMU_SOLEL, 0);
1781 	emu_wrptr(sc, 0, EMU_SOLEH, 0);
1782 
1783 	/* wonder what these do... */
1784 	if (sc->audigy) {
1785 		emu_wrptr(sc, 0, EMU_SPBYPASS, 0xf00);
1786 		emu_wrptr(sc, 0, EMU_AC97SLOT, 0x3);
1787 	}
1788 
1789 	/* init envelope engine */
1790 	for (ch = 0; ch < NUM_G; ch++) {
1791 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSV, ENV_OFF);
1792 		emu_wrptr(sc, ch, EMU_CHAN_IP, 0);
1793 		emu_wrptr(sc, ch, EMU_CHAN_VTFT, 0xffff);
1794 		emu_wrptr(sc, ch, EMU_CHAN_CVCF, 0xffff);
1795 		emu_wrptr(sc, ch, EMU_CHAN_PTRX, 0);
1796 		emu_wrptr(sc, ch, EMU_CHAN_CPF, 0);
1797 		emu_wrptr(sc, ch, EMU_CHAN_CCR, 0);
1798 
1799 		emu_wrptr(sc, ch, EMU_CHAN_PSST, 0);
1800 		emu_wrptr(sc, ch, EMU_CHAN_DSL, 0x10);
1801 		emu_wrptr(sc, ch, EMU_CHAN_CCCA, 0);
1802 		emu_wrptr(sc, ch, EMU_CHAN_Z1, 0);
1803 		emu_wrptr(sc, ch, EMU_CHAN_Z2, 0);
1804 		emu_wrptr(sc, ch, EMU_CHAN_FXRT, 0xd01c0000);
1805 
1806 		emu_wrptr(sc, ch, EMU_CHAN_ATKHLDM, 0);
1807 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSM, 0);
1808 		emu_wrptr(sc, ch, EMU_CHAN_IFATN, 0xffff);
1809 		emu_wrptr(sc, ch, EMU_CHAN_PEFE, 0);
1810 		emu_wrptr(sc, ch, EMU_CHAN_FMMOD, 0);
1811 		emu_wrptr(sc, ch, EMU_CHAN_TREMFRQ, 24);	/* 1 Hz */
1812 		emu_wrptr(sc, ch, EMU_CHAN_FM2FRQ2, 24);	/* 1 Hz */
1813 		emu_wrptr(sc, ch, EMU_CHAN_TEMPENV, 0);
1814 
1815 		/*** these are last so OFF prevents writing ***/
1816 		emu_wrptr(sc, ch, EMU_CHAN_LFOVAL2, 0);
1817 		emu_wrptr(sc, ch, EMU_CHAN_LFOVAL1, 0);
1818 		emu_wrptr(sc, ch, EMU_CHAN_ATKHLDV, 0);
1819 		emu_wrptr(sc, ch, EMU_CHAN_ENVVOL, 0);
1820 		emu_wrptr(sc, ch, EMU_CHAN_ENVVAL, 0);
1821 
1822 		if (sc->audigy) {
1823 			/* audigy cards need this to initialize correctly */
1824 			emu_wrptr(sc, ch, 0x4c, 0);
1825 			emu_wrptr(sc, ch, 0x4d, 0);
1826 			emu_wrptr(sc, ch, 0x4e, 0);
1827 			emu_wrptr(sc, ch, 0x4f, 0);
1828 			/* set default routing */
1829 			emu_wrptr(sc, ch, EMU_A_CHAN_FXRT1, 0x03020100);
1830 			emu_wrptr(sc, ch, EMU_A_CHAN_FXRT2, 0x3f3f3f3f);
1831 			emu_wrptr(sc, ch, EMU_A_CHAN_SENDAMOUNTS, 0);
1832 		}
1833 
1834 		sc->voice[ch].vnum = ch;
1835 		sc->voice[ch].slave = NULL;
1836 		sc->voice[ch].busy = 0;
1837 		sc->voice[ch].ismaster = 0;
1838 		sc->voice[ch].running = 0;
1839 		sc->voice[ch].b16 = 0;
1840 		sc->voice[ch].stereo = 0;
1841 		sc->voice[ch].speed = 0;
1842 		sc->voice[ch].start = 0;
1843 		sc->voice[ch].end = 0;
1844 		sc->voice[ch].channel = NULL;
1845 	}
1846 	sc->pnum = sc->rnum = 0;
1847 
1848 	/*
1849 	 *  Init to 0x02109204 :
1850 	 *  Clock accuracy    = 0     (1000ppm)
1851 	 *  Sample Rate       = 2     (48kHz)
1852 	 *  Audio Channel     = 1     (Left of 2)
1853 	 *  Source Number     = 0     (Unspecified)
1854 	 *  Generation Status = 1     (Original for Cat Code 12)
1855 	 *  Cat Code          = 12    (Digital Signal Mixer)
1856 	 *  Mode              = 0     (Mode 0)
1857 	 *  Emphasis          = 0     (None)
1858 	 *  CP                = 1     (Copyright unasserted)
1859 	 *  AN                = 0     (Audio data)
1860 	 *  P                 = 0     (Consumer)
1861 	 */
1862 	spcs = EMU_SPCS_CLKACCY_1000PPM | EMU_SPCS_SAMPLERATE_48 |
1863 	    EMU_SPCS_CHANNELNUM_LEFT | EMU_SPCS_SOURCENUM_UNSPEC |
1864 	    EMU_SPCS_GENERATIONSTATUS | 0x00001200 | 0x00000000 |
1865 	    EMU_SPCS_EMPHASIS_NONE | EMU_SPCS_COPYRIGHT;
1866 	emu_wrptr(sc, 0, EMU_SPCS0, spcs);
1867 	emu_wrptr(sc, 0, EMU_SPCS1, spcs);
1868 	emu_wrptr(sc, 0, EMU_SPCS2, spcs);
1869 
1870 	if (!sc->audigy)
1871 		emu_initefx(sc);
1872 	else if (sc->audigy2) {	/* Audigy 2 */
1873 		/* from ALSA initialization code: */
1874 
1875 		/* Hack for Alice3 to work independent of haP16V driver */
1876 		u_int32_t tmp;
1877 
1878 		/* Setup SRCMulti_I2S SamplingRate */
1879 		tmp = emu_rdptr(sc, 0, EMU_A_SPDIF_SAMPLERATE) & 0xfffff1ff;
1880 		emu_wrptr(sc, 0, EMU_A_SPDIF_SAMPLERATE, tmp | 0x400);
1881 
1882 		/* Setup SRCSel (Enable SPDIF, I2S SRCMulti) */
1883 		emu_wr(sc, 0x20, 0x00600000, 4);
1884 		emu_wr(sc, 0x24, 0x00000014, 4);
1885 
1886 		/* Setup SRCMulti Input Audio Enable */
1887 		emu_wr(sc, 0x20, 0x006e0000, 4);
1888 		emu_wr(sc, 0x24, 0xff00ff00, 4);
1889 	}
1890 
1891 	SLIST_INIT(&sc->mem.blocks);
1892 	sc->mem.ptb_pages = emu_malloc(sc, EMUMAXPAGES * sizeof(u_int32_t),
1893 	    &sc->mem.ptb_pages_addr, &sc->mem.ptb_map);
1894 	if (sc->mem.ptb_pages == NULL)
1895 		return -1;
1896 
1897 	sc->mem.silent_page = emu_malloc(sc, EMUPAGESIZE,
1898 	    &sc->mem.silent_page_addr, &sc->mem.silent_map);
1899 	if (sc->mem.silent_page == NULL) {
1900 		emu_free(sc, sc->mem.ptb_pages, sc->mem.ptb_map);
1901 		return -1;
1902 	}
1903 	/* Clear page with silence & setup all pointers to this page */
1904 	bzero(sc->mem.silent_page, EMUPAGESIZE);
1905 	tmp = (u_int32_t)(sc->mem.silent_page_addr) << 1;
1906 	for (i = 0; i < EMUMAXPAGES; i++)
1907 		sc->mem.ptb_pages[i] = tmp | i;
1908 
1909 	emu_wrptr(sc, 0, EMU_PTB, (sc->mem.ptb_pages_addr));
1910 	emu_wrptr(sc, 0, EMU_TCB, 0);	/* taken from original driver */
1911 	emu_wrptr(sc, 0, EMU_TCBS, 0);	/* taken from original driver */
1912 
1913 	for (ch = 0; ch < NUM_G; ch++) {
1914 		emu_wrptr(sc, ch, EMU_CHAN_MAPA, tmp | EMU_CHAN_MAP_PTI_MASK);
1915 		emu_wrptr(sc, ch, EMU_CHAN_MAPB, tmp | EMU_CHAN_MAP_PTI_MASK);
1916 	}
1917 
1918 	/* emu_memalloc(sc, EMUPAGESIZE); */
1919 	/*
1920 	 *  Hokay, now enable the AUD bit
1921 	 *
1922 	 *  Audigy
1923 	 *   Enable Audio = 0 (enabled after fx processor initialization)
1924 	 *   Mute Disable Audio = 0
1925 	 *   Joystick = 1
1926 	 *
1927 	 *  Audigy 2
1928 	 *   Enable Audio = 1
1929 	 *   Mute Disable Audio = 0
1930 	 *   Joystick = 1
1931 	 *   GP S/PDIF AC3 Enable = 1
1932 	 *   CD S/PDIF AC3 Enable = 1
1933 	 *
1934 	 *  EMU10K1
1935 	 *   Enable Audio = 1
1936 	 *   Mute Disable Audio = 0
1937 	 *   Lock Tank Memory = 1
1938 	 *   Lock Sound Memory = 0
1939 	 *   Auto Mute = 1
1940 	 */
1941 
1942 	if (sc->audigy) {
1943 		tmp = EMU_HCFG_AUTOMUTE | EMU_HCFG_JOYENABLE;
1944 		if (sc->audigy2)	/* Audigy 2 */
1945 			tmp = EMU_HCFG_AUDIOENABLE | EMU_HCFG_AC3ENABLE_CDSPDIF |
1946 			    EMU_HCFG_AC3ENABLE_GPSPDIF;
1947 		emu_wr(sc, EMU_HCFG, tmp, 4);
1948 
1949 		audigy_initefx(sc);
1950 
1951 		/* from ALSA initialization code: */
1952 
1953 		/* enable audio and disable both audio/digital outputs */
1954 		emu_wr(sc, EMU_HCFG, emu_rd(sc, EMU_HCFG, 4) | EMU_HCFG_AUDIOENABLE, 4);
1955 		emu_wr(sc, EMU_A_IOCFG, emu_rd(sc, EMU_A_IOCFG, 4) & ~EMU_A_IOCFG_GPOUT_AD,
1956 		    4);
1957 		if (sc->audigy2) {	/* Audigy 2 */
1958 			/* Unmute Analog.
1959 			 * Set GPO6 to 1 for Apollo. This has to be done after
1960 			 * init Alice3 I2SOut beyond 48kHz.
1961 			 * So, sequence is important.
1962 			 */
1963 			emu_wr(sc, EMU_A_IOCFG,
1964 			    emu_rd(sc, EMU_A_IOCFG, 4) | EMU_A_IOCFG_GPOUT_A, 4);
1965 		}
1966 	} else {
1967 		/* EMU10K1 initialization code */
1968 		tmp = EMU_HCFG_AUDIOENABLE | EMU_HCFG_LOCKTANKCACHE_MASK
1969 		    | EMU_HCFG_AUTOMUTE;
1970 		if (sc->rev >= 6)
1971 			tmp |= EMU_HCFG_JOYENABLE;
1972 
1973 		emu_wr(sc, EMU_HCFG, tmp, 4);
1974 
1975 		/* TOSLink detection */
1976 		sc->tos_link = 0;
1977 		tmp = emu_rd(sc, EMU_HCFG, 4);
1978 		if (tmp & (EMU_HCFG_GPINPUT0 | EMU_HCFG_GPINPUT1)) {
1979 			emu_wr(sc, EMU_HCFG, tmp | EMU_HCFG_GPOUT1, 4);
1980 			DELAY(50);
1981 			if (tmp != (emu_rd(sc, EMU_HCFG, 4) & ~EMU_HCFG_GPOUT1)) {
1982 				sc->tos_link = 1;
1983 				emu_wr(sc, EMU_HCFG, tmp, 4);
1984 			}
1985 		}
1986 	}
1987 
1988 	return 0;
1989 }
1990 
1991 static int
1992 emu_uninit(struct sc_info *sc)
1993 {
1994 	u_int32_t ch;
1995 
1996 	emu_wr(sc, EMU_INTE, 0, 4);
1997 	for (ch = 0; ch < NUM_G; ch++)
1998 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSV, ENV_OFF);
1999 	for (ch = 0; ch < NUM_G; ch++) {
2000 		emu_wrptr(sc, ch, EMU_CHAN_VTFT, 0);
2001 		emu_wrptr(sc, ch, EMU_CHAN_CVCF, 0);
2002 		emu_wrptr(sc, ch, EMU_CHAN_PTRX, 0);
2003 		emu_wrptr(sc, ch, EMU_CHAN_CPF, 0);
2004 	}
2005 
2006 	if (sc->audigy) {	/* stop fx processor */
2007 		emu_wrptr(sc, 0, EMU_A_DBG, EMU_A_DBG_SINGLE_STEP);
2008 	}
2009 
2010 	/* disable audio and lock cache */
2011 	emu_wr(sc, EMU_HCFG,
2012 	    EMU_HCFG_LOCKSOUNDCACHE | EMU_HCFG_LOCKTANKCACHE_MASK | EMU_HCFG_MUTEBUTTONENABLE,
2013 	    4);
2014 
2015 	emu_wrptr(sc, 0, EMU_PTB, 0);
2016 	/* reset recording buffers */
2017 	emu_wrptr(sc, 0, EMU_MICBS, EMU_RECBS_BUFSIZE_NONE);
2018 	emu_wrptr(sc, 0, EMU_MICBA, 0);
2019 	emu_wrptr(sc, 0, EMU_FXBS, EMU_RECBS_BUFSIZE_NONE);
2020 	emu_wrptr(sc, 0, EMU_FXBA, 0);
2021 	emu_wrptr(sc, 0, EMU_FXWC, 0);
2022 	emu_wrptr(sc, 0, EMU_ADCBS, EMU_RECBS_BUFSIZE_NONE);
2023 	emu_wrptr(sc, 0, EMU_ADCBA, 0);
2024 	emu_wrptr(sc, 0, EMU_TCB, 0);
2025 	emu_wrptr(sc, 0, EMU_TCBS, 0);
2026 
2027 	/* disable channel interrupt */
2028 	emu_wrptr(sc, 0, EMU_CLIEL, 0);
2029 	emu_wrptr(sc, 0, EMU_CLIEH, 0);
2030 	emu_wrptr(sc, 0, EMU_SOLEL, 0);
2031 	emu_wrptr(sc, 0, EMU_SOLEH, 0);
2032 
2033 	/* init envelope engine */
2034 	if (!SLIST_EMPTY(&sc->mem.blocks))
2035 		device_printf(sc->dev, "warning: memblock list not empty\n");
2036 	emu_free(sc, sc->mem.ptb_pages, sc->mem.ptb_map);
2037 	emu_free(sc, sc->mem.silent_page, sc->mem.silent_map);
2038 
2039 	if(sc->mpu)
2040 	    mpu401_uninit(sc->mpu);
2041 	return 0;
2042 }
2043 
2044 static int
2045 emu_pci_probe(device_t dev)
2046 {
2047 	char *s = NULL;
2048 
2049 	switch (pci_get_devid(dev)) {
2050 	case EMU10K1_PCI_ID:
2051 		s = "Creative EMU10K1";
2052 		break;
2053 
2054 	case EMU10K2_PCI_ID:
2055 		if (pci_get_revid(dev) == 0x04)
2056 			s = "Creative Audigy 2 (EMU10K2)";
2057 		else
2058 			s = "Creative Audigy (EMU10K2)";
2059 		break;
2060 
2061 	case EMU10K3_PCI_ID:
2062 		s = "Creative Audigy 2 (EMU10K3)";
2063 		break;
2064 
2065 	default:
2066 		return ENXIO;
2067 	}
2068 
2069 	device_set_desc(dev, s);
2070 	return BUS_PROBE_LOW_PRIORITY;
2071 }
2072 
2073 static int
2074 emu_pci_attach(device_t dev)
2075 {
2076 	struct ac97_info *codec = NULL;
2077 	struct sc_info *sc;
2078 	int i, gotmic;
2079 	char status[SND_STATUSLEN];
2080 
2081 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
2082 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_emu10k1 softc");
2083 	sc->dev = dev;
2084 	sc->type = pci_get_devid(dev);
2085 	sc->rev = pci_get_revid(dev);
2086 	sc->audigy = sc->type == EMU10K2_PCI_ID || sc->type == EMU10K3_PCI_ID;
2087 	sc->audigy2 = (sc->audigy && sc->rev == 0x04);
2088 	sc->nchans = sc->audigy ? 8 : 4;
2089 	sc->addrmask = sc->audigy ? EMU_A_PTR_ADDR_MASK : EMU_PTR_ADDR_MASK;
2090 
2091 	pci_enable_busmaster(dev);
2092 
2093 	i = PCIR_BAR(0);
2094 	sc->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &i, RF_ACTIVE);
2095 	if (sc->reg == NULL) {
2096 		device_printf(dev, "unable to map register space\n");
2097 		goto bad;
2098 	}
2099 	sc->st = rman_get_bustag(sc->reg);
2100 	sc->sh = rman_get_bushandle(sc->reg);
2101 
2102 	sc->bufsz = pcm_getbuffersize(dev, 4096, EMU_DEFAULT_BUFSZ, 65536);
2103 
2104 	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
2105 		/*boundary*/0,
2106 		/*lowaddr*/(1U << 31) - 1, /* can only access 0-2gb */
2107 		/*highaddr*/BUS_SPACE_MAXADDR,
2108 		/*filter*/NULL, /*filterarg*/NULL,
2109 		/*maxsize*/sc->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
2110 		/*flags*/0, /*lockfunc*/NULL, /*lockarg*/NULL,
2111 		&sc->parent_dmat) != 0) {
2112 		device_printf(dev, "unable to create dma tag\n");
2113 		goto bad;
2114 	}
2115 
2116 	if (emu_init(sc) == -1) {
2117 		device_printf(dev, "unable to initialize the card\n");
2118 		goto bad;
2119 	}
2120 
2121 	codec = AC97_CREATE(dev, sc, emu_ac97);
2122 	if (codec == NULL) goto bad;
2123 	gotmic = (ac97_getcaps(codec) & AC97_CAP_MICCHANNEL) ? 1 : 0;
2124 	if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto bad;
2125 
2126 	emu_midiattach(sc);
2127 
2128 	i = 0;
2129 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
2130 	    RF_ACTIVE | RF_SHAREABLE);
2131 	if (!sc->irq ||
2132 	    snd_setup_intr(dev, sc->irq, INTR_MPSAFE, emu_intr, sc, &sc->ih)) {
2133 		device_printf(dev, "unable to map interrupt\n");
2134 		goto bad;
2135 	}
2136 
2137 	snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd %s",
2138 	    rman_get_start(sc->reg), rman_get_start(sc->irq),
2139 	    PCM_KLDSTRING(snd_emu10k1));
2140 
2141 	if (pcm_register(dev, sc, sc->nchans, gotmic ? 3 : 2)) goto bad;
2142 	for (i = 0; i < sc->nchans; i++)
2143 		pcm_addchan(dev, PCMDIR_PLAY, &emupchan_class, sc);
2144 	for (i = 0; i < (gotmic ? 3 : 2); i++)
2145 		pcm_addchan(dev, PCMDIR_REC, &emurchan_class, sc);
2146 
2147 	pcm_setstatus(dev, status);
2148 
2149 	return 0;
2150 
2151 bad:
2152 	if (codec) ac97_destroy(codec);
2153 	if (sc->reg) bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->reg);
2154 	if (sc->ih) bus_teardown_intr(dev, sc->irq, sc->ih);
2155 	if (sc->irq) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
2156 	if (sc->parent_dmat) bus_dma_tag_destroy(sc->parent_dmat);
2157 	if (sc->lock) snd_mtxfree(sc->lock);
2158 	free(sc, M_DEVBUF);
2159 	return ENXIO;
2160 }
2161 
2162 static int
2163 emu_pci_detach(device_t dev)
2164 {
2165 	int r;
2166 	struct sc_info *sc;
2167 
2168 	r = pcm_unregister(dev);
2169 	if (r)
2170 		return r;
2171 
2172 	sc = pcm_getdevinfo(dev);
2173 	/* shutdown chip */
2174 	emu_uninit(sc);
2175 
2176 	bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->reg);
2177 	bus_teardown_intr(dev, sc->irq, sc->ih);
2178 	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
2179 	bus_dma_tag_destroy(sc->parent_dmat);
2180 	snd_mtxfree(sc->lock);
2181 	free(sc, M_DEVBUF);
2182 
2183 	return 0;
2184 }
2185 
2186 /* add suspend, resume */
2187 static device_method_t emu_methods[] = {
2188 	/* Device interface */
2189 	DEVMETHOD(device_probe,		emu_pci_probe),
2190 	DEVMETHOD(device_attach,	emu_pci_attach),
2191 	DEVMETHOD(device_detach,	emu_pci_detach),
2192 
2193 	DEVMETHOD_END
2194 };
2195 
2196 static driver_t emu_driver = {
2197 	"pcm",
2198 	emu_methods,
2199 	PCM_SOFTC_SIZE,
2200 };
2201 
2202 DRIVER_MODULE(snd_emu10k1, pci, emu_driver, pcm_devclass, NULL, NULL);
2203 MODULE_DEPEND(snd_emu10k1, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
2204 MODULE_VERSION(snd_emu10k1, 1);
2205 MODULE_DEPEND(snd_emu10k1, midi, 1, 1, 1);
2206 
2207 /* dummy driver to silence the joystick device */
2208 static int
2209 emujoy_pci_probe(device_t dev)
2210 {
2211 	char *s = NULL;
2212 
2213 	switch (pci_get_devid(dev)) {
2214 	case 0x70021102:
2215 		s = "Creative EMU10K1 Joystick";
2216 		device_quiet(dev);
2217 		break;
2218 	case 0x70031102:
2219 		s = "Creative EMU10K2 Joystick";
2220 		device_quiet(dev);
2221 		break;
2222 	}
2223 
2224 	if (s) device_set_desc(dev, s);
2225 	return s ? -1000 : ENXIO;
2226 }
2227 
2228 static int
2229 emujoy_pci_attach(device_t dev)
2230 {
2231 
2232 	return 0;
2233 }
2234 
2235 static int
2236 emujoy_pci_detach(device_t dev)
2237 {
2238 
2239 	return 0;
2240 }
2241 
2242 static device_method_t emujoy_methods[] = {
2243 	DEVMETHOD(device_probe,		emujoy_pci_probe),
2244 	DEVMETHOD(device_attach,	emujoy_pci_attach),
2245 	DEVMETHOD(device_detach,	emujoy_pci_detach),
2246 
2247 	DEVMETHOD_END
2248 };
2249 
2250 static driver_t emujoy_driver = {
2251 	"emujoy",
2252 	emujoy_methods,
2253 	1	/* no softc */
2254 };
2255 
2256 static devclass_t emujoy_devclass;
2257 
2258 DRIVER_MODULE(emujoy, pci, emujoy_driver, emujoy_devclass, NULL, NULL);
2259