xref: /freebsd/sys/dev/sound/pci/emu10k1.c (revision a466cc55373fc3cf86837f09da729535b57e69a1)
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 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 
873 	ch->blksz = blocksize;
874 	snd_mtxlock(sc->lock);
875 	emu_settimer(sc);
876 	snd_mtxunlock(sc->lock);
877 	return blocksize;
878 }
879 
880 static int
881 emupchan_trigger(kobj_t obj, void *data, int go)
882 {
883 	struct sc_pchinfo *ch = data;
884 	struct sc_info *sc = ch->parent;
885 
886 	if (!PCMTRIG_COMMON(go))
887 		return 0;
888 
889 	snd_mtxlock(sc->lock);
890 	if (go == PCMTRIG_START) {
891 		emu_vsetup(ch);
892 		emu_vwrite(sc, ch->master);
893 		emu_settimer(sc);
894 		emu_enatimer(sc, 1);
895 #ifdef EMUDEBUG
896 		printf("start [%d bit, %s, %d hz]\n",
897 			ch->master->b16 ? 16 : 8,
898 			ch->master->stereo ? "stereo" : "mono",
899 			ch->master->speed);
900 		emu_vdump(sc, ch->master);
901 		emu_vdump(sc, ch->slave);
902 #endif
903 	}
904 	ch->run = (go == PCMTRIG_START) ? 1 : 0;
905 	emu_vtrigger(sc, ch->master, ch->run);
906 	snd_mtxunlock(sc->lock);
907 	return 0;
908 }
909 
910 static u_int32_t
911 emupchan_getptr(kobj_t obj, void *data)
912 {
913 	struct sc_pchinfo *ch = data;
914 	struct sc_info *sc = ch->parent;
915 	int r;
916 
917 	snd_mtxlock(sc->lock);
918 	r = emu_vpos(sc, ch->master);
919 	snd_mtxunlock(sc->lock);
920 
921 	return r;
922 }
923 
924 static struct pcmchan_caps *
925 emupchan_getcaps(kobj_t obj, void *data)
926 {
927 	return &emu_playcaps;
928 }
929 
930 static kobj_method_t emupchan_methods[] = {
931 	KOBJMETHOD(channel_init,		emupchan_init),
932 	KOBJMETHOD(channel_free,		emupchan_free),
933 	KOBJMETHOD(channel_setformat,		emupchan_setformat),
934 	KOBJMETHOD(channel_setspeed,		emupchan_setspeed),
935 	KOBJMETHOD(channel_setblocksize,	emupchan_setblocksize),
936 	KOBJMETHOD(channel_trigger,		emupchan_trigger),
937 	KOBJMETHOD(channel_getptr,		emupchan_getptr),
938 	KOBJMETHOD(channel_getcaps,		emupchan_getcaps),
939 	KOBJMETHOD_END
940 };
941 CHANNEL_DECLARE(emupchan);
942 
943 /* channel interface */
944 static void *
945 emurchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
946     struct pcm_channel *c, int dir)
947 {
948 	struct sc_info *sc = devinfo;
949 	struct sc_rchinfo *ch;
950 
951 	KASSERT(dir == PCMDIR_REC, ("emurchan_init: bad direction"));
952 	ch = &sc->rch[sc->rnum];
953 	ch->buffer = b;
954 	ch->parent = sc;
955 	ch->channel = c;
956 	ch->blksz = sc->bufsz / 2;
957 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
958 	ch->spd = 8000;
959 	ch->num = sc->rnum;
960 	switch(sc->rnum) {
961 	case 0:
962 		ch->idxreg = sc->audigy ? EMU_A_ADCIDX : EMU_ADCIDX;
963 		ch->basereg = EMU_ADCBA;
964 		ch->sizereg = EMU_ADCBS;
965 		ch->setupreg = EMU_ADCCR;
966 		ch->irqmask = EMU_INTE_ADCBUFENABLE;
967 		break;
968 
969 	case 1:
970 		ch->idxreg = EMU_FXIDX;
971 		ch->basereg = EMU_FXBA;
972 		ch->sizereg = EMU_FXBS;
973 		ch->setupreg = EMU_FXWC;
974 		ch->irqmask = EMU_INTE_EFXBUFENABLE;
975 		break;
976 
977 	case 2:
978 		ch->idxreg = EMU_MICIDX;
979 		ch->basereg = EMU_MICBA;
980 		ch->sizereg = EMU_MICBS;
981 		ch->setupreg = 0;
982 		ch->irqmask = EMU_INTE_MICBUFENABLE;
983 		break;
984 	}
985 	sc->rnum++;
986 	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsz) != 0)
987 		return NULL;
988 	else {
989 		snd_mtxlock(sc->lock);
990 		emu_wrptr(sc, 0, ch->basereg, sndbuf_getbufaddr(ch->buffer));
991 		emu_wrptr(sc, 0, ch->sizereg, 0); /* off */
992 		snd_mtxunlock(sc->lock);
993 		return ch;
994 	}
995 }
996 
997 static int
998 emurchan_setformat(kobj_t obj, void *data, u_int32_t format)
999 {
1000 	struct sc_rchinfo *ch = data;
1001 
1002 	ch->fmt = format;
1003 	return 0;
1004 }
1005 
1006 static u_int32_t
1007 emurchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
1008 {
1009 	struct sc_rchinfo *ch = data;
1010 
1011 	if (ch->num == 0) {
1012 		if (ch->parent->audigy)
1013 			speed = audigy_adcspeed[audigy_recval(speed)];
1014 		else
1015 			speed = adcspeed[emu_recval(speed)];
1016 	}
1017 	if (ch->num == 1)
1018 		speed = 48000;
1019 	if (ch->num == 2)
1020 		speed = 8000;
1021 	ch->spd = speed;
1022 	return ch->spd;
1023 }
1024 
1025 static u_int32_t
1026 emurchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
1027 {
1028 	struct sc_rchinfo *ch = data;
1029 	struct sc_info *sc = ch->parent;
1030 
1031 	ch->blksz = blocksize;
1032 	snd_mtxlock(sc->lock);
1033 	emu_settimer(sc);
1034 	snd_mtxunlock(sc->lock);
1035 	return blocksize;
1036 }
1037 
1038 /* semantic note: must start at beginning of buffer */
1039 static int
1040 emurchan_trigger(kobj_t obj, void *data, int go)
1041 {
1042 	struct sc_rchinfo *ch = data;
1043 	struct sc_info *sc = ch->parent;
1044 	u_int32_t val, sz;
1045 
1046 	if (!PCMTRIG_COMMON(go))
1047 		return 0;
1048 
1049 	switch(sc->bufsz) {
1050 	case 4096:
1051 		sz = EMU_RECBS_BUFSIZE_4096;
1052 		break;
1053 
1054 	case 8192:
1055 		sz = EMU_RECBS_BUFSIZE_8192;
1056 		break;
1057 
1058 	case 16384:
1059 		sz = EMU_RECBS_BUFSIZE_16384;
1060 		break;
1061 
1062 	case 32768:
1063 		sz = EMU_RECBS_BUFSIZE_32768;
1064 		break;
1065 
1066 	case 65536:
1067 		sz = EMU_RECBS_BUFSIZE_65536;
1068 		break;
1069 
1070 	default:
1071 		sz = EMU_RECBS_BUFSIZE_4096;
1072 	}
1073 
1074 	snd_mtxlock(sc->lock);
1075 	switch(go) {
1076 	case PCMTRIG_START:
1077 		ch->run = 1;
1078 		emu_wrptr(sc, 0, ch->sizereg, sz);
1079 		if (ch->num == 0) {
1080 			if (sc->audigy) {
1081 				val = EMU_A_ADCCR_LCHANENABLE;
1082 				if (AFMT_CHANNEL(ch->fmt) > 1)
1083 					val |= EMU_A_ADCCR_RCHANENABLE;
1084 				val |= audigy_recval(ch->spd);
1085 			} else {
1086 				val = EMU_ADCCR_LCHANENABLE;
1087 				if (AFMT_CHANNEL(ch->fmt) > 1)
1088 					val |= EMU_ADCCR_RCHANENABLE;
1089 				val |= emu_recval(ch->spd);
1090 			}
1091 
1092 			emu_wrptr(sc, 0, ch->setupreg, 0);
1093 			emu_wrptr(sc, 0, ch->setupreg, val);
1094 		}
1095 		val = emu_rd(sc, EMU_INTE, 4);
1096 		val |= ch->irqmask;
1097 		emu_wr(sc, EMU_INTE, val, 4);
1098 		break;
1099 
1100 	case PCMTRIG_STOP:
1101 	case PCMTRIG_ABORT:
1102 		ch->run = 0;
1103 		emu_wrptr(sc, 0, ch->sizereg, 0);
1104 		if (ch->setupreg)
1105 			emu_wrptr(sc, 0, ch->setupreg, 0);
1106 		val = emu_rd(sc, EMU_INTE, 4);
1107 		val &= ~ch->irqmask;
1108 		emu_wr(sc, EMU_INTE, val, 4);
1109 		break;
1110 
1111 	case PCMTRIG_EMLDMAWR:
1112 	case PCMTRIG_EMLDMARD:
1113 	default:
1114 		break;
1115 	}
1116 	snd_mtxunlock(sc->lock);
1117 
1118 	return 0;
1119 }
1120 
1121 static u_int32_t
1122 emurchan_getptr(kobj_t obj, void *data)
1123 {
1124 	struct sc_rchinfo *ch = data;
1125 	struct sc_info *sc = ch->parent;
1126 	int r;
1127 
1128 	snd_mtxlock(sc->lock);
1129 	r = emu_rdptr(sc, 0, ch->idxreg) & 0x0000ffff;
1130 	snd_mtxunlock(sc->lock);
1131 
1132 	return r;
1133 }
1134 
1135 static struct pcmchan_caps *
1136 emurchan_getcaps(kobj_t obj, void *data)
1137 {
1138 	struct sc_rchinfo *ch = data;
1139 
1140 	return &emu_reccaps[ch->num];
1141 }
1142 
1143 static kobj_method_t emurchan_methods[] = {
1144 	KOBJMETHOD(channel_init,		emurchan_init),
1145 	KOBJMETHOD(channel_setformat,		emurchan_setformat),
1146 	KOBJMETHOD(channel_setspeed,		emurchan_setspeed),
1147 	KOBJMETHOD(channel_setblocksize,	emurchan_setblocksize),
1148 	KOBJMETHOD(channel_trigger,		emurchan_trigger),
1149 	KOBJMETHOD(channel_getptr,		emurchan_getptr),
1150 	KOBJMETHOD(channel_getcaps,		emurchan_getcaps),
1151 	KOBJMETHOD_END
1152 };
1153 CHANNEL_DECLARE(emurchan);
1154 
1155 static unsigned char
1156 emu_mread(struct mpu401 *arg, void *sc, int reg)
1157 {
1158 	unsigned int d;
1159 
1160 	d = emu_rd((struct sc_info *)sc, 0x18 + reg, 1);
1161 	return d;
1162 }
1163 
1164 static void
1165 emu_mwrite(struct mpu401 *arg, void *sc, int reg, unsigned char b)
1166 {
1167 
1168 	emu_wr((struct sc_info *)sc, 0x18 + reg, b, 1);
1169 }
1170 
1171 static int
1172 emu_muninit(struct mpu401 *arg, void *cookie)
1173 {
1174 	struct sc_info *sc = cookie;
1175 
1176 	snd_mtxlock(sc->lock);
1177 	sc->mpu_intr = NULL;
1178 	snd_mtxunlock(sc->lock);
1179 
1180 	return 0;
1181 }
1182 
1183 static kobj_method_t emu_mpu_methods[] = {
1184     	KOBJMETHOD(mpufoi_read,		emu_mread),
1185     	KOBJMETHOD(mpufoi_write,	emu_mwrite),
1186     	KOBJMETHOD(mpufoi_uninit,	emu_muninit),
1187 	KOBJMETHOD_END
1188 };
1189 
1190 static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0);
1191 
1192 static void
1193 emu_intr2(void *p)
1194 {
1195 	struct sc_info *sc = (struct sc_info *)p;
1196 
1197 	if (sc->mpu_intr)
1198 	    (sc->mpu_intr)(sc->mpu);
1199 }
1200 
1201 static void
1202 emu_midiattach(struct sc_info *sc)
1203 {
1204 	int i;
1205 
1206 	i = emu_rd(sc, EMU_INTE, 4);
1207 	i |= EMU_INTE_MIDIRXENABLE;
1208 	emu_wr(sc, EMU_INTE, i, 4);
1209 
1210 	sc->mpu = mpu401_init(&emu_mpu_class, sc, emu_intr2, &sc->mpu_intr);
1211 }
1212 /* -------------------------------------------------------------------- */
1213 /* The interrupt handler */
1214 
1215 static void
1216 emu_intr(void *data)
1217 {
1218 	struct sc_info *sc = data;
1219 	u_int32_t stat, ack, i, x;
1220 
1221 	snd_mtxlock(sc->lock);
1222 	while (1) {
1223 		stat = emu_rd(sc, EMU_IPR, 4);
1224 		if (stat == 0)
1225 			break;
1226 		ack = 0;
1227 
1228 		/* process irq */
1229 		if (stat & EMU_IPR_INTERVALTIMER)
1230 			ack |= EMU_IPR_INTERVALTIMER;
1231 
1232 		if (stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL))
1233 			ack |= stat & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL);
1234 
1235 		if (stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL))
1236 			ack |= stat & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL);
1237 
1238 		if (stat & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL))
1239 			ack |= stat & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL);
1240 
1241 		if (stat & EMU_PCIERROR) {
1242 			ack |= EMU_PCIERROR;
1243 			device_printf(sc->dev, "pci error\n");
1244 			/* we still get an nmi with ecc ram even if we ack this */
1245 		}
1246 		if (stat & EMU_IPR_RATETRCHANGE) {
1247 			ack |= EMU_IPR_RATETRCHANGE;
1248 #ifdef EMUDEBUG
1249 			device_printf(sc->dev,
1250 			    "sample rate tracker lock status change\n");
1251 #endif
1252 		}
1253 
1254 		if (stat & EMU_IPR_MIDIRECVBUFE) {
1255 			if (sc->mpu_intr) {
1256 				(sc->mpu_intr)(sc->mpu);
1257 				ack |= EMU_IPR_MIDIRECVBUFE | EMU_IPR_MIDITRANSBUFE;
1258 			}
1259 		}
1260 		if (stat & ~ack)
1261 			device_printf(sc->dev, "dodgy irq: %x (harmless)\n",
1262 			    stat & ~ack);
1263 
1264 		emu_wr(sc, EMU_IPR, stat, 4);
1265 
1266 		if (ack) {
1267 			snd_mtxunlock(sc->lock);
1268 
1269 			if (ack & EMU_IPR_INTERVALTIMER) {
1270 				x = 0;
1271 				for (i = 0; i < sc->nchans; i++) {
1272 					if (sc->pch[i].run) {
1273 						x = 1;
1274 						chn_intr(sc->pch[i].channel);
1275 					}
1276 				}
1277 				if (x == 0)
1278 					emu_enatimer(sc, 0);
1279 			}
1280 
1281 			if (ack & (EMU_IPR_ADCBUFFULL | EMU_IPR_ADCBUFHALFFULL)) {
1282 				if (sc->rch[0].channel)
1283 					chn_intr(sc->rch[0].channel);
1284 			}
1285 			if (ack & (EMU_IPR_EFXBUFFULL | EMU_IPR_EFXBUFHALFFULL)) {
1286 				if (sc->rch[1].channel)
1287 					chn_intr(sc->rch[1].channel);
1288 			}
1289 			if (ack & (EMU_IPR_MICBUFFULL | EMU_IPR_MICBUFHALFFULL)) {
1290 				if (sc->rch[2].channel)
1291 					chn_intr(sc->rch[2].channel);
1292 			}
1293 
1294 			snd_mtxlock(sc->lock);
1295 		}
1296 	}
1297 	snd_mtxunlock(sc->lock);
1298 }
1299 
1300 /* -------------------------------------------------------------------- */
1301 
1302 static void
1303 emu_setmap(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1304 {
1305 	bus_addr_t *phys = arg;
1306 
1307 	*phys = error ? 0 : (bus_addr_t)segs->ds_addr;
1308 
1309 	if (bootverbose) {
1310 		printf("emu: setmap (%lx, %lx), nseg=%d, error=%d\n",
1311 		    (unsigned long)segs->ds_addr, (unsigned long)segs->ds_len,
1312 		    nseg, error);
1313 	}
1314 }
1315 
1316 static void *
1317 emu_malloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr,
1318     bus_dmamap_t *map)
1319 {
1320 	void *buf;
1321 
1322 	*addr = 0;
1323 	if (bus_dmamem_alloc(sc->parent_dmat, &buf, BUS_DMA_NOWAIT, map))
1324 		return NULL;
1325 	if (bus_dmamap_load(sc->parent_dmat, *map, buf, sz, emu_setmap, addr,
1326 	    BUS_DMA_NOWAIT) || !*addr) {
1327 		bus_dmamem_free(sc->parent_dmat, buf, *map);
1328 		return NULL;
1329 	}
1330 	return buf;
1331 }
1332 
1333 static void
1334 emu_free(struct sc_info *sc, void *buf, bus_dmamap_t map)
1335 {
1336 	bus_dmamap_unload(sc->parent_dmat, map);
1337 	bus_dmamem_free(sc->parent_dmat, buf, map);
1338 }
1339 
1340 static void *
1341 emu_memalloc(struct sc_info *sc, u_int32_t sz, bus_addr_t *addr)
1342 {
1343 	u_int32_t blksz, start, idx, ofs, tmp, found;
1344 	struct emu_mem *mem = &sc->mem;
1345 	struct emu_memblk *blk;
1346 	void *buf;
1347 
1348 	blksz = sz / EMUPAGESIZE;
1349 	if (sz > (blksz * EMUPAGESIZE))
1350 		blksz++;
1351 	/* find a free block in the bitmap */
1352 	found = 0;
1353 	start = 1;
1354 	while (!found && start + blksz < EMUMAXPAGES) {
1355 		found = 1;
1356 		for (idx = start; idx < start + blksz; idx++)
1357 			if (mem->bmap[idx >> 3] & (1 << (idx & 7)))
1358 				found = 0;
1359 		if (!found)
1360 			start++;
1361 	}
1362 	if (!found)
1363 		return NULL;
1364 	blk = malloc(sizeof(*blk), M_DEVBUF, M_NOWAIT);
1365 	if (blk == NULL)
1366 		return NULL;
1367 	buf = emu_malloc(sc, sz, &blk->buf_addr, &blk->buf_map);
1368 	*addr = blk->buf_addr;
1369 	if (buf == NULL) {
1370 		free(blk, M_DEVBUF);
1371 		return NULL;
1372 	}
1373 	blk->buf = buf;
1374 	blk->pte_start = start;
1375 	blk->pte_size = blksz;
1376 #ifdef EMUDEBUG
1377 	printf("buf %p, pte_start %d, pte_size %d\n", blk->buf,
1378 	    blk->pte_start, blk->pte_size);
1379 #endif
1380 	ofs = 0;
1381 	for (idx = start; idx < start + blksz; idx++) {
1382 		mem->bmap[idx >> 3] |= 1 << (idx & 7);
1383 		tmp = (uint32_t)(blk->buf_addr + ofs);
1384 #ifdef EMUDEBUG
1385 		printf("pte[%d] -> %x phys, %x virt\n", idx, tmp,
1386 		    ((u_int32_t)buf) + ofs);
1387 #endif
1388 		mem->ptb_pages[idx] = (tmp << 1) | idx;
1389 		ofs += EMUPAGESIZE;
1390 	}
1391 	SLIST_INSERT_HEAD(&mem->blocks, blk, link);
1392 	return buf;
1393 }
1394 
1395 static int
1396 emu_memfree(struct sc_info *sc, void *buf)
1397 {
1398 	u_int32_t idx, tmp;
1399 	struct emu_mem *mem = &sc->mem;
1400 	struct emu_memblk *blk, *i;
1401 
1402 	blk = NULL;
1403 	SLIST_FOREACH(i, &mem->blocks, link) {
1404 		if (i->buf == buf)
1405 			blk = i;
1406 	}
1407 	if (blk == NULL)
1408 		return EINVAL;
1409 	SLIST_REMOVE(&mem->blocks, blk, emu_memblk, link);
1410 	emu_free(sc, buf, blk->buf_map);
1411 	tmp = (u_int32_t)(sc->mem.silent_page_addr) << 1;
1412 	for (idx = blk->pte_start; idx < blk->pte_start + blk->pte_size; idx++) {
1413 		mem->bmap[idx >> 3] &= ~(1 << (idx & 7));
1414 		mem->ptb_pages[idx] = tmp | idx;
1415 	}
1416 	free(blk, M_DEVBUF);
1417 	return 0;
1418 }
1419 
1420 static int
1421 emu_memstart(struct sc_info *sc, void *buf)
1422 {
1423 	struct emu_mem *mem = &sc->mem;
1424 	struct emu_memblk *blk, *i;
1425 
1426 	blk = NULL;
1427 	SLIST_FOREACH(i, &mem->blocks, link) {
1428 		if (i->buf == buf)
1429 			blk = i;
1430 	}
1431 	if (blk == NULL)
1432 		return -EINVAL;
1433 	return blk->pte_start;
1434 }
1435 
1436 static void
1437 emu_addefxop(struct sc_info *sc, int op, int z, int w, int x, int y,
1438     u_int32_t *pc)
1439 {
1440 	emu_wrefx(sc, (*pc) * 2, (x << 10) | y);
1441 	emu_wrefx(sc, (*pc) * 2 + 1, (op << 20) | (z << 10) | w);
1442 	(*pc)++;
1443 }
1444 
1445 static void
1446 audigy_addefxop(struct sc_info *sc, int op, int z, int w, int x, int y,
1447     u_int32_t *pc)
1448 {
1449 	emu_wrefx(sc, (*pc) * 2, (x << 12) | y);
1450 	emu_wrefx(sc, (*pc) * 2 + 1, (op << 24) | (z << 12) | w);
1451 	(*pc)++;
1452 }
1453 
1454 static void
1455 audigy_initefx(struct sc_info *sc)
1456 {
1457 	int i;
1458 	u_int32_t pc = 0;
1459 
1460 	/* skip 0, 0, -1, 0 - NOPs */
1461 	for (i = 0; i < 512; i++)
1462 		audigy_addefxop(sc, 0x0f, 0x0c0, 0x0c0, 0x0cf, 0x0c0, &pc);
1463 
1464 	for (i = 0; i < 512; i++)
1465 		emu_wrptr(sc, 0, EMU_A_FXGPREGBASE + i, 0x0);
1466 
1467 	pc = 16;
1468 
1469 	/* stop fx processor */
1470 	emu_wrptr(sc, 0, EMU_A_DBG, EMU_A_DBG_SINGLE_STEP);
1471 
1472 	/* Audigy 2 (EMU10K2) DSP Registers:
1473 	   FX Bus
1474 		0x000-0x00f : 16 registers (?)
1475 	   Input
1476 		0x040/0x041 : AC97 Codec (l/r)
1477 		0x042/0x043 : ADC, S/PDIF (l/r)
1478 		0x044/0x045 : Optical S/PDIF in (l/r)
1479 		0x046/0x047 : ?
1480 		0x048/0x049 : Line/Mic 2 (l/r)
1481 		0x04a/0x04b : RCA S/PDIF (l/r)
1482 		0x04c/0x04d : Aux 2 (l/r)
1483 	   Output
1484 		0x060/0x061 : Digital Front (l/r)
1485 		0x062/0x063 : Digital Center/LFE
1486 		0x064/0x065 : AudigyDrive Heaphone (l/r)
1487 		0x066/0x067 : Digital Rear (l/r)
1488 		0x068/0x069 : Analog Front (l/r)
1489 		0x06a/0x06b : Analog Center/LFE
1490 		0x06c/0x06d : ?
1491 		0x06e/0x06f : Analog Rear (l/r)
1492 		0x070/0x071 : AC97 Output (l/r)
1493 		0x072/0x073 : ?
1494 		0x074/0x075 : ?
1495 		0x076/0x077 : ADC Recording Buffer (l/r)
1496 	   Constants
1497 		0x0c0 - 0x0c4 = 0 - 4
1498 		0x0c5 = 0x8, 0x0c6 = 0x10, 0x0c7 = 0x20
1499 		0x0c8 = 0x100, 0x0c9 = 0x10000, 0x0ca = 0x80000
1500 		0x0cb = 0x10000000, 0x0cc = 0x20000000, 0x0cd = 0x40000000
1501 		0x0ce = 0x80000000, 0x0cf = 0x7fffffff, 0x0d0 = 0xffffffff
1502 		0x0d1 = 0xfffffffe, 0x0d2 = 0xc0000000, 0x0d3 = 0x41fbbcdc
1503 		0x0d4 = 0x5a7ef9db, 0x0d5 = 0x00100000, 0x0dc = 0x00000001 (?)
1504 	   Temporary Values
1505 		0x0d6 : Accumulator (?)
1506 		0x0d7 : Condition Register
1507 		0x0d8 : Noise source
1508 		0x0d9 : Noise source
1509 	   Tank Memory Data Registers
1510 		0x200 - 0x2ff
1511 	   Tank Memory Address Registers
1512 		0x300 - 0x3ff
1513 	   General Purpose Registers
1514 		0x400 - 0x5ff
1515 	 */
1516 
1517 	/* AC97Output[l/r] = FXBus PCM[l/r] */
1518 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AC97_L), A_C_00000000,
1519 			A_C_00000000, A_FXBUS(FXBUS_PCM_LEFT), &pc);
1520 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AC97_R), A_C_00000000,
1521 			A_C_00000000, A_FXBUS(FXBUS_PCM_RIGHT), &pc);
1522 
1523 	/* GPR[0/1] = RCA S/PDIF[l/r] -- Master volume */
1524 	audigy_addefxop(sc, iACC3, A_GPR(0), A_C_00000000,
1525 			A_C_00000000, A_EXTIN(EXTIN_COAX_SPDIF_L), &pc);
1526 	audigy_addefxop(sc, iACC3, A_GPR(1), A_C_00000000,
1527 			A_C_00000000, A_EXTIN(EXTIN_COAX_SPDIF_R), &pc);
1528 
1529 	/* GPR[2] = GPR[0] (Left) / 2 + GPR[1] (Right) / 2 -- Central volume */
1530 	audigy_addefxop(sc, iINTERP, A_GPR(2), A_GPR(1),
1531 			A_C_40000000, A_GPR(0), &pc);
1532 
1533 	/* Headphones[l/r] = GPR[0/1] */
1534 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_HEADPHONE_L),
1535 			A_C_00000000, A_C_00000000, A_GPR(0), &pc);
1536 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_HEADPHONE_R),
1537 			A_C_00000000, A_C_00000000, A_GPR(1), &pc);
1538 
1539 	/* Analog Front[l/r] = GPR[0/1] */
1540 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AFRONT_L), A_C_00000000,
1541 			A_C_00000000, A_GPR(0), &pc);
1542 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AFRONT_R), A_C_00000000,
1543 			A_C_00000000, A_GPR(1), &pc);
1544 
1545 	/* Digital Front[l/r] = GPR[0/1] */
1546 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_FRONT_L), A_C_00000000,
1547 			A_C_00000000, A_GPR(0), &pc);
1548 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_FRONT_R), A_C_00000000,
1549 			A_C_00000000, A_GPR(1), &pc);
1550 
1551 	/* Center and Subwoofer configuration */
1552 	/* Analog Center = GPR[0] + GPR[2] */
1553 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ACENTER), A_C_00000000,
1554 			A_GPR(0), A_GPR(2), &pc);
1555 	/* Analog Sub = GPR[1] + GPR[2] */
1556 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ALFE), A_C_00000000,
1557 			A_GPR(1), A_GPR(2), &pc);
1558 
1559 	/* Digital Center = GPR[0] + GPR[2] */
1560 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_CENTER), A_C_00000000,
1561 			A_GPR(0), A_GPR(2), &pc);
1562 	/* Digital Sub = GPR[1] + GPR[2] */
1563 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_LFE), A_C_00000000,
1564 			A_GPR(1), A_GPR(2), &pc);
1565 
1566 #if 0
1567 	/* Analog Rear[l/r] = (GPR[0/1] * RearVolume[l/r]) >> 31 */
1568 	/*   RearVolume = GPR[0x10/0x11] (Will this ever be implemented?) */
1569 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_AREAR_L), A_C_00000000,
1570 			A_GPR(16), A_GPR(0), &pc);
1571 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_AREAR_R), A_C_00000000,
1572 			A_GPR(17), A_GPR(1), &pc);
1573 
1574 	/* Digital Rear[l/r] = (GPR[0/1] * RearVolume[l/r]) >> 31 */
1575 	/*   RearVolume = GPR[0x10/0x11] (Will this ever be implemented?) */
1576 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_REAR_L), A_C_00000000,
1577 			A_GPR(16), A_GPR(0), &pc);
1578 	audigy_addefxop(sc, iMAC0, A_EXTOUT(A_EXTOUT_REAR_R), A_C_00000000,
1579 			A_GPR(17), A_GPR(1), &pc);
1580 #else
1581 	/* XXX This is just a copy to the channel, since we do not have
1582 	 *     a patch manager, it is useful for have another output enabled.
1583 	 */
1584 
1585 	/* Analog Rear[l/r] = GPR[0/1] */
1586 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AREAR_L), A_C_00000000,
1587 			A_C_00000000, A_GPR(0), &pc);
1588 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_AREAR_R), A_C_00000000,
1589 			A_C_00000000, A_GPR(1), &pc);
1590 
1591 	/* Digital Rear[l/r] = GPR[0/1] */
1592 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_REAR_L), A_C_00000000,
1593 			A_C_00000000, A_GPR(0), &pc);
1594 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_REAR_R), A_C_00000000,
1595 			A_C_00000000, A_GPR(1), &pc);
1596 #endif
1597 
1598 	/* ADC Recording buffer[l/r] = AC97Input[l/r] */
1599 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ADC_CAP_L), A_C_00000000,
1600 			A_C_00000000, A_EXTIN(A_EXTIN_AC97_L), &pc);
1601 	audigy_addefxop(sc, iACC3, A_EXTOUT(A_EXTOUT_ADC_CAP_R), A_C_00000000,
1602 			A_C_00000000, A_EXTIN(A_EXTIN_AC97_R), &pc);
1603 
1604 	/* resume normal operations */
1605 	emu_wrptr(sc, 0, EMU_A_DBG, 0);
1606 }
1607 
1608 static void
1609 emu_initefx(struct sc_info *sc)
1610 {
1611 	int i;
1612 	u_int32_t pc = 16;
1613 
1614 	/* acc3 0,0,0,0 - NOPs */
1615 	for (i = 0; i < 512; i++) {
1616 		emu_wrefx(sc, i * 2, 0x10040);
1617 		emu_wrefx(sc, i * 2 + 1, 0x610040);
1618 	}
1619 
1620 	for (i = 0; i < 256; i++)
1621 		emu_wrptr(sc, 0, EMU_FXGPREGBASE + i, 0);
1622 
1623 	/* FX-8010 DSP Registers:
1624 	   FX Bus
1625 	     0x000-0x00f : 16 registers
1626 	   Input
1627 	     0x010/0x011 : AC97 Codec (l/r)
1628 	     0x012/0x013 : ADC, S/PDIF (l/r)
1629 	     0x014/0x015 : Mic(left), Zoom (l/r)
1630 	     0x016/0x017 : TOS link in (l/r)
1631 	     0x018/0x019 : Line/Mic 1 (l/r)
1632 	     0x01a/0x01b : COAX S/PDIF (l/r)
1633 	     0x01c/0x01d : Line/Mic 2 (l/r)
1634 	   Output
1635 	     0x020/0x021 : AC97 Output (l/r)
1636 	     0x022/0x023 : TOS link out (l/r)
1637 	     0x024/0x025 : Center/LFE
1638 	     0x026/0x027 : LiveDrive Headphone (l/r)
1639 	     0x028/0x029 : Rear Channel (l/r)
1640 	     0x02a/0x02b : ADC Recording Buffer (l/r)
1641 	     0x02c       : Mic Recording Buffer
1642 	     0x031/0x032 : Analog Center/LFE
1643 	   Constants
1644 	     0x040 - 0x044 = 0 - 4
1645 	     0x045 = 0x8, 0x046 = 0x10, 0x047 = 0x20
1646 	     0x048 = 0x100, 0x049 = 0x10000, 0x04a = 0x80000
1647 	     0x04b = 0x10000000, 0x04c = 0x20000000, 0x04d = 0x40000000
1648 	     0x04e = 0x80000000, 0x04f = 0x7fffffff, 0x050 = 0xffffffff
1649 	     0x051 = 0xfffffffe, 0x052 = 0xc0000000, 0x053 = 0x41fbbcdc
1650 	     0x054 = 0x5a7ef9db, 0x055 = 0x00100000
1651 	   Temporary Values
1652 	     0x056 : Accumulator
1653 	     0x057 : Condition Register
1654 	     0x058 : Noise source
1655 	     0x059 : Noise source
1656 	     0x05a : IRQ Register
1657 	     0x05b : TRAM Delay Base Address Count
1658 	   General Purpose Registers
1659 	     0x100 - 0x1ff
1660 	   Tank Memory Data Registers
1661 	     0x200 - 0x2ff
1662 	   Tank Memory Address Registers
1663 	     0x300 - 0x3ff
1664 	     */
1665 
1666 	/* Routing - this will be configurable in later version */
1667 
1668 	/* GPR[0/1] = FX * 4 + SPDIF-in */
1669 	emu_addefxop(sc, iMACINT0, GPR(0), EXTIN(EXTIN_SPDIF_CD_L),
1670 			FXBUS(FXBUS_PCM_LEFT), C_00000004, &pc);
1671 	emu_addefxop(sc, iMACINT0, GPR(1), EXTIN(EXTIN_SPDIF_CD_R),
1672 			FXBUS(FXBUS_PCM_RIGHT), C_00000004, &pc);
1673 
1674 	/* GPR[0/1] += APS-input */
1675 	emu_addefxop(sc, iACC3, GPR(0), GPR(0), C_00000000,
1676 			sc->APS ? EXTIN(EXTIN_TOSLINK_L) : C_00000000, &pc);
1677 	emu_addefxop(sc, iACC3, GPR(1), GPR(1), C_00000000,
1678 			sc->APS ? EXTIN(EXTIN_TOSLINK_R) : C_00000000, &pc);
1679 
1680 	/* FrontOut (AC97) = GPR[0/1] */
1681 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_L), C_00000000,
1682 			C_00000000, GPR(0), &pc);
1683 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_R), C_00000000,
1684 			C_00000001, GPR(1), &pc);
1685 
1686 	/* GPR[2] = GPR[0] (Left) / 2 + GPR[1] (Right) / 2 -- Central volume */
1687 	emu_addefxop(sc, iINTERP, GPR(2), GPR(1), C_40000000, GPR(0), &pc);
1688 
1689 #if 0
1690 	/* RearOut = (GPR[0/1] * RearVolume) >> 31 */
1691 	/*   RearVolume = GPR[0x10/0x11] */
1692 	emu_addefxop(sc, iMAC0, EXTOUT(EXTOUT_REAR_L), C_00000000,
1693 			GPR(16), GPR(0), &pc);
1694 	emu_addefxop(sc, iMAC0, EXTOUT(EXTOUT_REAR_R), C_00000000,
1695 			GPR(17), GPR(1), &pc);
1696 #else
1697 	/* XXX This is just a copy to the channel, since we do not have
1698 	 *     a patch manager, it is useful for have another output enabled.
1699 	 */
1700 
1701 	/* Rear[l/r] = GPR[0/1] */
1702 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_REAR_L), C_00000000,
1703 			C_00000000, GPR(0), &pc);
1704 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_REAR_R), C_00000000,
1705 			C_00000000, GPR(1), &pc);
1706 #endif
1707 
1708 	/* TOS out[l/r] = GPR[0/1] */
1709 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_TOSLINK_L), C_00000000,
1710 			C_00000000, GPR(0), &pc);
1711 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_TOSLINK_R), C_00000000,
1712 			C_00000000, GPR(1), &pc);
1713 
1714 	/* Center and Subwoofer configuration */
1715 	/* Analog Center = GPR[0] + GPR[2] */
1716 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ACENTER), C_00000000,
1717 			GPR(0), GPR(2), &pc);
1718 	/* Analog Sub = GPR[1] + GPR[2] */
1719 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ALFE), C_00000000,
1720 			GPR(1), GPR(2), &pc);
1721 	/* Digital Center = GPR[0] + GPR[2] */
1722 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_CENTER), C_00000000,
1723 			GPR(0), GPR(2), &pc);
1724 	/* Digital Sub = GPR[1] + GPR[2] */
1725 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_AC97_LFE), C_00000000,
1726 			GPR(1), GPR(2), &pc);
1727 
1728 	/* Headphones[l/r] = GPR[0/1] */
1729 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_HEADPHONE_L), C_00000000,
1730 			C_00000000, GPR(0), &pc);
1731 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_HEADPHONE_R), C_00000000,
1732 			C_00000000, GPR(1), &pc);
1733 
1734 	/* ADC Recording buffer[l/r] = AC97Input[l/r] */
1735 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ADC_CAP_L), C_00000000,
1736 			C_00000000, EXTIN(EXTIN_AC97_L), &pc);
1737 	emu_addefxop(sc, iACC3, EXTOUT(EXTOUT_ADC_CAP_R), C_00000000,
1738 			C_00000000, EXTIN(EXTIN_AC97_R), &pc);
1739 
1740 	/* resume normal operations */
1741 	emu_wrptr(sc, 0, EMU_DBG, 0);
1742 }
1743 
1744 /* Probe and attach the card */
1745 static int
1746 emu_init(struct sc_info *sc)
1747 {
1748 	u_int32_t spcs, ch, tmp, i;
1749 
1750 	if (sc->audigy) {
1751 		/* enable additional AC97 slots */
1752 		emu_wrptr(sc, 0, EMU_AC97SLOT, EMU_AC97SLOT_CENTER | EMU_AC97SLOT_LFE);
1753 	}
1754 
1755 	/* disable audio and lock cache */
1756 	emu_wr(sc, EMU_HCFG,
1757 	    EMU_HCFG_LOCKSOUNDCACHE | EMU_HCFG_LOCKTANKCACHE_MASK | EMU_HCFG_MUTEBUTTONENABLE,
1758 	    4);
1759 
1760 	/* reset recording buffers */
1761 	emu_wrptr(sc, 0, EMU_MICBS, EMU_RECBS_BUFSIZE_NONE);
1762 	emu_wrptr(sc, 0, EMU_MICBA, 0);
1763 	emu_wrptr(sc, 0, EMU_FXBS, EMU_RECBS_BUFSIZE_NONE);
1764 	emu_wrptr(sc, 0, EMU_FXBA, 0);
1765 	emu_wrptr(sc, 0, EMU_ADCBS, EMU_RECBS_BUFSIZE_NONE);
1766 	emu_wrptr(sc, 0, EMU_ADCBA, 0);
1767 
1768 	/* disable channel interrupt */
1769 	emu_wr(sc, EMU_INTE,
1770 	    EMU_INTE_INTERTIMERENB | EMU_INTE_SAMPLERATER | EMU_INTE_PCIERRENABLE,
1771 	    4);
1772 	emu_wrptr(sc, 0, EMU_CLIEL, 0);
1773 	emu_wrptr(sc, 0, EMU_CLIEH, 0);
1774 	emu_wrptr(sc, 0, EMU_SOLEL, 0);
1775 	emu_wrptr(sc, 0, EMU_SOLEH, 0);
1776 
1777 	/* wonder what these do... */
1778 	if (sc->audigy) {
1779 		emu_wrptr(sc, 0, EMU_SPBYPASS, 0xf00);
1780 		emu_wrptr(sc, 0, EMU_AC97SLOT, 0x3);
1781 	}
1782 
1783 	/* init envelope engine */
1784 	for (ch = 0; ch < NUM_G; ch++) {
1785 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSV, ENV_OFF);
1786 		emu_wrptr(sc, ch, EMU_CHAN_IP, 0);
1787 		emu_wrptr(sc, ch, EMU_CHAN_VTFT, 0xffff);
1788 		emu_wrptr(sc, ch, EMU_CHAN_CVCF, 0xffff);
1789 		emu_wrptr(sc, ch, EMU_CHAN_PTRX, 0);
1790 		emu_wrptr(sc, ch, EMU_CHAN_CPF, 0);
1791 		emu_wrptr(sc, ch, EMU_CHAN_CCR, 0);
1792 
1793 		emu_wrptr(sc, ch, EMU_CHAN_PSST, 0);
1794 		emu_wrptr(sc, ch, EMU_CHAN_DSL, 0x10);
1795 		emu_wrptr(sc, ch, EMU_CHAN_CCCA, 0);
1796 		emu_wrptr(sc, ch, EMU_CHAN_Z1, 0);
1797 		emu_wrptr(sc, ch, EMU_CHAN_Z2, 0);
1798 		emu_wrptr(sc, ch, EMU_CHAN_FXRT, 0xd01c0000);
1799 
1800 		emu_wrptr(sc, ch, EMU_CHAN_ATKHLDM, 0);
1801 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSM, 0);
1802 		emu_wrptr(sc, ch, EMU_CHAN_IFATN, 0xffff);
1803 		emu_wrptr(sc, ch, EMU_CHAN_PEFE, 0);
1804 		emu_wrptr(sc, ch, EMU_CHAN_FMMOD, 0);
1805 		emu_wrptr(sc, ch, EMU_CHAN_TREMFRQ, 24);	/* 1 Hz */
1806 		emu_wrptr(sc, ch, EMU_CHAN_FM2FRQ2, 24);	/* 1 Hz */
1807 		emu_wrptr(sc, ch, EMU_CHAN_TEMPENV, 0);
1808 
1809 		/*** these are last so OFF prevents writing ***/
1810 		emu_wrptr(sc, ch, EMU_CHAN_LFOVAL2, 0);
1811 		emu_wrptr(sc, ch, EMU_CHAN_LFOVAL1, 0);
1812 		emu_wrptr(sc, ch, EMU_CHAN_ATKHLDV, 0);
1813 		emu_wrptr(sc, ch, EMU_CHAN_ENVVOL, 0);
1814 		emu_wrptr(sc, ch, EMU_CHAN_ENVVAL, 0);
1815 
1816 		if (sc->audigy) {
1817 			/* audigy cards need this to initialize correctly */
1818 			emu_wrptr(sc, ch, 0x4c, 0);
1819 			emu_wrptr(sc, ch, 0x4d, 0);
1820 			emu_wrptr(sc, ch, 0x4e, 0);
1821 			emu_wrptr(sc, ch, 0x4f, 0);
1822 			/* set default routing */
1823 			emu_wrptr(sc, ch, EMU_A_CHAN_FXRT1, 0x03020100);
1824 			emu_wrptr(sc, ch, EMU_A_CHAN_FXRT2, 0x3f3f3f3f);
1825 			emu_wrptr(sc, ch, EMU_A_CHAN_SENDAMOUNTS, 0);
1826 		}
1827 
1828 		sc->voice[ch].vnum = ch;
1829 		sc->voice[ch].slave = NULL;
1830 		sc->voice[ch].busy = 0;
1831 		sc->voice[ch].ismaster = 0;
1832 		sc->voice[ch].running = 0;
1833 		sc->voice[ch].b16 = 0;
1834 		sc->voice[ch].stereo = 0;
1835 		sc->voice[ch].speed = 0;
1836 		sc->voice[ch].start = 0;
1837 		sc->voice[ch].end = 0;
1838 		sc->voice[ch].channel = NULL;
1839 	}
1840 	sc->pnum = sc->rnum = 0;
1841 
1842 	/*
1843 	 *  Init to 0x02109204 :
1844 	 *  Clock accuracy    = 0     (1000ppm)
1845 	 *  Sample Rate       = 2     (48kHz)
1846 	 *  Audio Channel     = 1     (Left of 2)
1847 	 *  Source Number     = 0     (Unspecified)
1848 	 *  Generation Status = 1     (Original for Cat Code 12)
1849 	 *  Cat Code          = 12    (Digital Signal Mixer)
1850 	 *  Mode              = 0     (Mode 0)
1851 	 *  Emphasis          = 0     (None)
1852 	 *  CP                = 1     (Copyright unasserted)
1853 	 *  AN                = 0     (Audio data)
1854 	 *  P                 = 0     (Consumer)
1855 	 */
1856 	spcs = EMU_SPCS_CLKACCY_1000PPM | EMU_SPCS_SAMPLERATE_48 |
1857 	    EMU_SPCS_CHANNELNUM_LEFT | EMU_SPCS_SOURCENUM_UNSPEC |
1858 	    EMU_SPCS_GENERATIONSTATUS | 0x00001200 | 0x00000000 |
1859 	    EMU_SPCS_EMPHASIS_NONE | EMU_SPCS_COPYRIGHT;
1860 	emu_wrptr(sc, 0, EMU_SPCS0, spcs);
1861 	emu_wrptr(sc, 0, EMU_SPCS1, spcs);
1862 	emu_wrptr(sc, 0, EMU_SPCS2, spcs);
1863 
1864 	if (!sc->audigy)
1865 		emu_initefx(sc);
1866 	else if (sc->audigy2) {	/* Audigy 2 */
1867 		/* from ALSA initialization code: */
1868 
1869 		/* Hack for Alice3 to work independent of haP16V driver */
1870 		u_int32_t tmp;
1871 
1872 		/* Setup SRCMulti_I2S SamplingRate */
1873 		tmp = emu_rdptr(sc, 0, EMU_A_SPDIF_SAMPLERATE) & 0xfffff1ff;
1874 		emu_wrptr(sc, 0, EMU_A_SPDIF_SAMPLERATE, tmp | 0x400);
1875 
1876 		/* Setup SRCSel (Enable SPDIF, I2S SRCMulti) */
1877 		emu_wr(sc, 0x20, 0x00600000, 4);
1878 		emu_wr(sc, 0x24, 0x00000014, 4);
1879 
1880 		/* Setup SRCMulti Input Audio Enable */
1881 		emu_wr(sc, 0x20, 0x006e0000, 4);
1882 		emu_wr(sc, 0x24, 0xff00ff00, 4);
1883 	}
1884 
1885 	SLIST_INIT(&sc->mem.blocks);
1886 	sc->mem.ptb_pages = emu_malloc(sc, EMUMAXPAGES * sizeof(u_int32_t),
1887 	    &sc->mem.ptb_pages_addr, &sc->mem.ptb_map);
1888 	if (sc->mem.ptb_pages == NULL)
1889 		return -1;
1890 
1891 	sc->mem.silent_page = emu_malloc(sc, EMUPAGESIZE,
1892 	    &sc->mem.silent_page_addr, &sc->mem.silent_map);
1893 	if (sc->mem.silent_page == NULL) {
1894 		emu_free(sc, sc->mem.ptb_pages, sc->mem.ptb_map);
1895 		return -1;
1896 	}
1897 	/* Clear page with silence & setup all pointers to this page */
1898 	bzero(sc->mem.silent_page, EMUPAGESIZE);
1899 	tmp = (u_int32_t)(sc->mem.silent_page_addr) << 1;
1900 	for (i = 0; i < EMUMAXPAGES; i++)
1901 		sc->mem.ptb_pages[i] = tmp | i;
1902 
1903 	emu_wrptr(sc, 0, EMU_PTB, (sc->mem.ptb_pages_addr));
1904 	emu_wrptr(sc, 0, EMU_TCB, 0);	/* taken from original driver */
1905 	emu_wrptr(sc, 0, EMU_TCBS, 0);	/* taken from original driver */
1906 
1907 	for (ch = 0; ch < NUM_G; ch++) {
1908 		emu_wrptr(sc, ch, EMU_CHAN_MAPA, tmp | EMU_CHAN_MAP_PTI_MASK);
1909 		emu_wrptr(sc, ch, EMU_CHAN_MAPB, tmp | EMU_CHAN_MAP_PTI_MASK);
1910 	}
1911 
1912 	/* emu_memalloc(sc, EMUPAGESIZE); */
1913 	/*
1914 	 *  Hokay, now enable the AUD bit
1915 	 *
1916 	 *  Audigy
1917 	 *   Enable Audio = 0 (enabled after fx processor initialization)
1918 	 *   Mute Disable Audio = 0
1919 	 *   Joystick = 1
1920 	 *
1921 	 *  Audigy 2
1922 	 *   Enable Audio = 1
1923 	 *   Mute Disable Audio = 0
1924 	 *   Joystick = 1
1925 	 *   GP S/PDIF AC3 Enable = 1
1926 	 *   CD S/PDIF AC3 Enable = 1
1927 	 *
1928 	 *  EMU10K1
1929 	 *   Enable Audio = 1
1930 	 *   Mute Disable Audio = 0
1931 	 *   Lock Tank Memory = 1
1932 	 *   Lock Sound Memory = 0
1933 	 *   Auto Mute = 1
1934 	 */
1935 
1936 	if (sc->audigy) {
1937 		tmp = EMU_HCFG_AUTOMUTE | EMU_HCFG_JOYENABLE;
1938 		if (sc->audigy2)	/* Audigy 2 */
1939 			tmp = EMU_HCFG_AUDIOENABLE | EMU_HCFG_AC3ENABLE_CDSPDIF |
1940 			    EMU_HCFG_AC3ENABLE_GPSPDIF;
1941 		emu_wr(sc, EMU_HCFG, tmp, 4);
1942 
1943 		audigy_initefx(sc);
1944 
1945 		/* from ALSA initialization code: */
1946 
1947 		/* enable audio and disable both audio/digital outputs */
1948 		emu_wr(sc, EMU_HCFG, emu_rd(sc, EMU_HCFG, 4) | EMU_HCFG_AUDIOENABLE, 4);
1949 		emu_wr(sc, EMU_A_IOCFG, emu_rd(sc, EMU_A_IOCFG, 4) & ~EMU_A_IOCFG_GPOUT_AD,
1950 		    4);
1951 		if (sc->audigy2) {	/* Audigy 2 */
1952 			/* Unmute Analog.
1953 			 * Set GPO6 to 1 for Apollo. This has to be done after
1954 			 * init Alice3 I2SOut beyond 48kHz.
1955 			 * So, sequence is important.
1956 			 */
1957 			emu_wr(sc, EMU_A_IOCFG,
1958 			    emu_rd(sc, EMU_A_IOCFG, 4) | EMU_A_IOCFG_GPOUT_A, 4);
1959 		}
1960 	} else {
1961 		/* EMU10K1 initialization code */
1962 		tmp = EMU_HCFG_AUDIOENABLE | EMU_HCFG_LOCKTANKCACHE_MASK
1963 		    | EMU_HCFG_AUTOMUTE;
1964 		if (sc->rev >= 6)
1965 			tmp |= EMU_HCFG_JOYENABLE;
1966 
1967 		emu_wr(sc, EMU_HCFG, tmp, 4);
1968 
1969 		/* TOSLink detection */
1970 		sc->tos_link = 0;
1971 		tmp = emu_rd(sc, EMU_HCFG, 4);
1972 		if (tmp & (EMU_HCFG_GPINPUT0 | EMU_HCFG_GPINPUT1)) {
1973 			emu_wr(sc, EMU_HCFG, tmp | EMU_HCFG_GPOUT1, 4);
1974 			DELAY(50);
1975 			if (tmp != (emu_rd(sc, EMU_HCFG, 4) & ~EMU_HCFG_GPOUT1)) {
1976 				sc->tos_link = 1;
1977 				emu_wr(sc, EMU_HCFG, tmp, 4);
1978 			}
1979 		}
1980 	}
1981 
1982 	return 0;
1983 }
1984 
1985 static int
1986 emu_uninit(struct sc_info *sc)
1987 {
1988 	u_int32_t ch;
1989 
1990 	emu_wr(sc, EMU_INTE, 0, 4);
1991 	for (ch = 0; ch < NUM_G; ch++)
1992 		emu_wrptr(sc, ch, EMU_CHAN_DCYSUSV, ENV_OFF);
1993 	for (ch = 0; ch < NUM_G; ch++) {
1994 		emu_wrptr(sc, ch, EMU_CHAN_VTFT, 0);
1995 		emu_wrptr(sc, ch, EMU_CHAN_CVCF, 0);
1996 		emu_wrptr(sc, ch, EMU_CHAN_PTRX, 0);
1997 		emu_wrptr(sc, ch, EMU_CHAN_CPF, 0);
1998 	}
1999 
2000 	if (sc->audigy) {	/* stop fx processor */
2001 		emu_wrptr(sc, 0, EMU_A_DBG, EMU_A_DBG_SINGLE_STEP);
2002 	}
2003 
2004 	/* disable audio and lock cache */
2005 	emu_wr(sc, EMU_HCFG,
2006 	    EMU_HCFG_LOCKSOUNDCACHE | EMU_HCFG_LOCKTANKCACHE_MASK | EMU_HCFG_MUTEBUTTONENABLE,
2007 	    4);
2008 
2009 	emu_wrptr(sc, 0, EMU_PTB, 0);
2010 	/* reset recording buffers */
2011 	emu_wrptr(sc, 0, EMU_MICBS, EMU_RECBS_BUFSIZE_NONE);
2012 	emu_wrptr(sc, 0, EMU_MICBA, 0);
2013 	emu_wrptr(sc, 0, EMU_FXBS, EMU_RECBS_BUFSIZE_NONE);
2014 	emu_wrptr(sc, 0, EMU_FXBA, 0);
2015 	emu_wrptr(sc, 0, EMU_FXWC, 0);
2016 	emu_wrptr(sc, 0, EMU_ADCBS, EMU_RECBS_BUFSIZE_NONE);
2017 	emu_wrptr(sc, 0, EMU_ADCBA, 0);
2018 	emu_wrptr(sc, 0, EMU_TCB, 0);
2019 	emu_wrptr(sc, 0, EMU_TCBS, 0);
2020 
2021 	/* disable channel interrupt */
2022 	emu_wrptr(sc, 0, EMU_CLIEL, 0);
2023 	emu_wrptr(sc, 0, EMU_CLIEH, 0);
2024 	emu_wrptr(sc, 0, EMU_SOLEL, 0);
2025 	emu_wrptr(sc, 0, EMU_SOLEH, 0);
2026 
2027 	/* init envelope engine */
2028 	if (!SLIST_EMPTY(&sc->mem.blocks))
2029 		device_printf(sc->dev, "warning: memblock list not empty\n");
2030 	emu_free(sc, sc->mem.ptb_pages, sc->mem.ptb_map);
2031 	emu_free(sc, sc->mem.silent_page, sc->mem.silent_map);
2032 
2033 	if(sc->mpu)
2034 	    mpu401_uninit(sc->mpu);
2035 	return 0;
2036 }
2037 
2038 static int
2039 emu_pci_probe(device_t dev)
2040 {
2041 	char *s = NULL;
2042 
2043 	switch (pci_get_devid(dev)) {
2044 	case EMU10K1_PCI_ID:
2045 		s = "Creative EMU10K1";
2046 		break;
2047 
2048 	case EMU10K2_PCI_ID:
2049 		if (pci_get_revid(dev) == 0x04)
2050 			s = "Creative Audigy 2 (EMU10K2)";
2051 		else
2052 			s = "Creative Audigy (EMU10K2)";
2053 		break;
2054 
2055 	case EMU10K3_PCI_ID:
2056 		s = "Creative Audigy 2 (EMU10K3)";
2057 		break;
2058 
2059 	default:
2060 		return ENXIO;
2061 	}
2062 
2063 	device_set_desc(dev, s);
2064 	return BUS_PROBE_LOW_PRIORITY;
2065 }
2066 
2067 static int
2068 emu_pci_attach(device_t dev)
2069 {
2070 	struct ac97_info *codec = NULL;
2071 	struct sc_info *sc;
2072 	int i, gotmic;
2073 	char status[SND_STATUSLEN];
2074 
2075 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
2076 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_emu10k1 softc");
2077 	sc->dev = dev;
2078 	sc->type = pci_get_devid(dev);
2079 	sc->rev = pci_get_revid(dev);
2080 	sc->audigy = sc->type == EMU10K2_PCI_ID || sc->type == EMU10K3_PCI_ID;
2081 	sc->audigy2 = (sc->audigy && sc->rev == 0x04);
2082 	sc->nchans = sc->audigy ? 8 : 4;
2083 	sc->addrmask = sc->audigy ? EMU_A_PTR_ADDR_MASK : EMU_PTR_ADDR_MASK;
2084 
2085 	pci_enable_busmaster(dev);
2086 
2087 	i = PCIR_BAR(0);
2088 	sc->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &i, RF_ACTIVE);
2089 	if (sc->reg == NULL) {
2090 		device_printf(dev, "unable to map register space\n");
2091 		goto bad;
2092 	}
2093 	sc->st = rman_get_bustag(sc->reg);
2094 	sc->sh = rman_get_bushandle(sc->reg);
2095 
2096 	sc->bufsz = pcm_getbuffersize(dev, 4096, EMU_DEFAULT_BUFSZ, 65536);
2097 
2098 	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
2099 		/*boundary*/0,
2100 		/*lowaddr*/(1U << 31) - 1, /* can only access 0-2gb */
2101 		/*highaddr*/BUS_SPACE_MAXADDR,
2102 		/*filter*/NULL, /*filterarg*/NULL,
2103 		/*maxsize*/sc->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
2104 		/*flags*/0, /*lockfunc*/NULL, /*lockarg*/NULL,
2105 		&sc->parent_dmat) != 0) {
2106 		device_printf(dev, "unable to create dma tag\n");
2107 		goto bad;
2108 	}
2109 
2110 	if (emu_init(sc) == -1) {
2111 		device_printf(dev, "unable to initialize the card\n");
2112 		goto bad;
2113 	}
2114 
2115 	codec = AC97_CREATE(dev, sc, emu_ac97);
2116 	if (codec == NULL) goto bad;
2117 	gotmic = (ac97_getcaps(codec) & AC97_CAP_MICCHANNEL) ? 1 : 0;
2118 	if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto bad;
2119 
2120 	emu_midiattach(sc);
2121 
2122 	i = 0;
2123 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
2124 	    RF_ACTIVE | RF_SHAREABLE);
2125 	if (!sc->irq ||
2126 	    snd_setup_intr(dev, sc->irq, INTR_MPSAFE, emu_intr, sc, &sc->ih)) {
2127 		device_printf(dev, "unable to map interrupt\n");
2128 		goto bad;
2129 	}
2130 
2131 	snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd %s",
2132 	    rman_get_start(sc->reg), rman_get_start(sc->irq),
2133 	    PCM_KLDSTRING(snd_emu10k1));
2134 
2135 	if (pcm_register(dev, sc, sc->nchans, gotmic ? 3 : 2)) goto bad;
2136 	for (i = 0; i < sc->nchans; i++)
2137 		pcm_addchan(dev, PCMDIR_PLAY, &emupchan_class, sc);
2138 	for (i = 0; i < (gotmic ? 3 : 2); i++)
2139 		pcm_addchan(dev, PCMDIR_REC, &emurchan_class, sc);
2140 
2141 	pcm_setstatus(dev, status);
2142 
2143 	return 0;
2144 
2145 bad:
2146 	if (codec) ac97_destroy(codec);
2147 	if (sc->reg) bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->reg);
2148 	if (sc->ih) bus_teardown_intr(dev, sc->irq, sc->ih);
2149 	if (sc->irq) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
2150 	if (sc->parent_dmat) bus_dma_tag_destroy(sc->parent_dmat);
2151 	if (sc->lock) snd_mtxfree(sc->lock);
2152 	free(sc, M_DEVBUF);
2153 	return ENXIO;
2154 }
2155 
2156 static int
2157 emu_pci_detach(device_t dev)
2158 {
2159 	int r;
2160 	struct sc_info *sc;
2161 
2162 	r = pcm_unregister(dev);
2163 	if (r)
2164 		return r;
2165 
2166 	sc = pcm_getdevinfo(dev);
2167 	/* shutdown chip */
2168 	emu_uninit(sc);
2169 
2170 	bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->reg);
2171 	bus_teardown_intr(dev, sc->irq, sc->ih);
2172 	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
2173 	bus_dma_tag_destroy(sc->parent_dmat);
2174 	snd_mtxfree(sc->lock);
2175 	free(sc, M_DEVBUF);
2176 
2177 	return 0;
2178 }
2179 
2180 /* add suspend, resume */
2181 static device_method_t emu_methods[] = {
2182 	/* Device interface */
2183 	DEVMETHOD(device_probe,		emu_pci_probe),
2184 	DEVMETHOD(device_attach,	emu_pci_attach),
2185 	DEVMETHOD(device_detach,	emu_pci_detach),
2186 
2187 	DEVMETHOD_END
2188 };
2189 
2190 static driver_t emu_driver = {
2191 	"pcm",
2192 	emu_methods,
2193 	PCM_SOFTC_SIZE,
2194 };
2195 
2196 DRIVER_MODULE(snd_emu10k1, pci, emu_driver, NULL, NULL);
2197 MODULE_DEPEND(snd_emu10k1, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
2198 MODULE_VERSION(snd_emu10k1, 1);
2199 MODULE_DEPEND(snd_emu10k1, midi, 1, 1, 1);
2200 
2201 /* dummy driver to silence the joystick device */
2202 static int
2203 emujoy_pci_probe(device_t dev)
2204 {
2205 	char *s = NULL;
2206 
2207 	switch (pci_get_devid(dev)) {
2208 	case 0x70021102:
2209 		s = "Creative EMU10K1 Joystick";
2210 		device_quiet(dev);
2211 		break;
2212 	case 0x70031102:
2213 		s = "Creative EMU10K2 Joystick";
2214 		device_quiet(dev);
2215 		break;
2216 	}
2217 
2218 	if (s) device_set_desc(dev, s);
2219 	return s ? -1000 : ENXIO;
2220 }
2221 
2222 static int
2223 emujoy_pci_attach(device_t dev)
2224 {
2225 
2226 	return 0;
2227 }
2228 
2229 static int
2230 emujoy_pci_detach(device_t dev)
2231 {
2232 
2233 	return 0;
2234 }
2235 
2236 static device_method_t emujoy_methods[] = {
2237 	DEVMETHOD(device_probe,		emujoy_pci_probe),
2238 	DEVMETHOD(device_attach,	emujoy_pci_attach),
2239 	DEVMETHOD(device_detach,	emujoy_pci_detach),
2240 
2241 	DEVMETHOD_END
2242 };
2243 
2244 static driver_t emujoy_driver = {
2245 	"emujoy",
2246 	emujoy_methods,
2247 	1	/* no softc */
2248 };
2249 
2250 DRIVER_MODULE(emujoy, pci, emujoy_driver, NULL, NULL);
2251