xref: /freebsd/sys/dev/sound/pci/vibes.c (revision e8d8bef961a50d4dc22501cde4fb9fb0be1b2532)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2001 Orion Hodson <O.Hodson@cs.ucl.ac.uk>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 /*
30  * This card has the annoying habit of "clicking" when attached and
31  * detached, haven't been able to remedy this with any combination of
32  * muting.
33  */
34 
35 #ifdef HAVE_KERNEL_OPTION_HEADERS
36 #include "opt_snd.h"
37 #endif
38 
39 #include <dev/sound/pcm/sound.h>
40 #include <dev/sound/pci/vibes.h>
41 
42 #include <dev/pci/pcireg.h>
43 #include <dev/pci/pcivar.h>
44 
45 #include "mixer_if.h"
46 
47 SND_DECLARE_FILE("$FreeBSD$");
48 
49 /* ------------------------------------------------------------------------- */
50 /* Constants */
51 
52 #define SV_PCI_ID		0xca005333
53 #define SV_DEFAULT_BUFSZ	16384
54 #define SV_MIN_BLKSZ		128
55 #define SV_INTR_PER_BUFFER	2
56 
57 #ifndef DEB
58 #define DEB(x) /* (x) */
59 #endif
60 
61 /* ------------------------------------------------------------------------- */
62 /* Structures */
63 
64 struct sc_info;
65 
66 struct sc_chinfo {
67 	struct sc_info	*parent;
68 	struct pcm_channel	*channel;
69 	struct snd_dbuf	*buffer;
70 	u_int32_t	fmt, spd;
71 	int		dir;
72 	int		dma_active, dma_was_active;
73 };
74 
75 struct sc_info {
76 	device_t		dev;
77 
78 	/* DMA buffer allocator */
79 	bus_dma_tag_t		parent_dmat;
80 
81 	/* Enhanced register resources */
82 	struct resource 	*enh_reg;
83 	bus_space_tag_t		enh_st;
84 	bus_space_handle_t	enh_sh;
85 	int			enh_type;
86 	int			enh_rid;
87 
88 	/* DMA configuration */
89 	struct resource		*dmaa_reg, *dmac_reg;
90 	bus_space_tag_t		dmaa_st, dmac_st;
91 	bus_space_handle_t	dmaa_sh, dmac_sh;
92 	int			dmaa_type, dmac_type;
93 	int			dmaa_rid, dmac_rid;
94 
95 	/* Interrupt resources */
96 	struct resource 	*irq;
97 	int			irqid;
98 	void			*ih;
99 
100 	/* User configurable buffer size */
101 	unsigned int		bufsz;
102 
103 	struct sc_chinfo	rch, pch;
104 	u_int8_t		rev;
105 };
106 
107 static u_int32_t sc_fmt[] = {
108 	SND_FORMAT(AFMT_U8, 1, 0),
109 	SND_FORMAT(AFMT_U8, 2, 0),
110 	SND_FORMAT(AFMT_S16_LE, 1, 0),
111 	SND_FORMAT(AFMT_S16_LE, 2, 0),
112 	0
113 };
114 
115 static struct pcmchan_caps sc_caps = {8000, 48000, sc_fmt, 0};
116 
117 /* ------------------------------------------------------------------------- */
118 /* Register Manipulations */
119 
120 #define sv_direct_set(x, y, z) _sv_direct_set(x, y, z, __LINE__)
121 
122 static u_int8_t
123 sv_direct_get(struct sc_info *sc, u_int8_t reg)
124 {
125 	return bus_space_read_1(sc->enh_st, sc->enh_sh, reg);
126 }
127 
128 static void
129 _sv_direct_set(struct sc_info *sc, u_int8_t reg, u_int8_t val, int line)
130 {
131 	u_int8_t n;
132 	bus_space_write_1(sc->enh_st, sc->enh_sh, reg, val);
133 
134 	n = sv_direct_get(sc, reg);
135 	if (n != val) {
136 		device_printf(sc->dev, "sv_direct_set register 0x%02x %d != %d from line %d\n", reg, n, val, line);
137 	}
138 }
139 
140 static u_int8_t
141 sv_indirect_get(struct sc_info *sc, u_int8_t reg)
142 {
143 	if (reg == SV_REG_FORMAT || reg == SV_REG_ANALOG_PWR)
144 		reg |= SV_CM_INDEX_MCE;
145 
146 	bus_space_write_1(sc->enh_st, sc->enh_sh, SV_CM_INDEX, reg);
147 	return bus_space_read_1(sc->enh_st, sc->enh_sh, SV_CM_DATA);
148 }
149 
150 #define sv_indirect_set(x, y, z) _sv_indirect_set(x, y, z, __LINE__)
151 
152 static void
153 _sv_indirect_set(struct sc_info *sc, u_int8_t reg, u_int8_t val, int line)
154 {
155 	if (reg == SV_REG_FORMAT || reg == SV_REG_ANALOG_PWR)
156 		reg |= SV_CM_INDEX_MCE;
157 
158 	bus_space_write_1(sc->enh_st, sc->enh_sh, SV_CM_INDEX, reg);
159 	bus_space_write_1(sc->enh_st, sc->enh_sh, SV_CM_DATA, val);
160 
161 	reg &= ~SV_CM_INDEX_MCE;
162 	if (reg != SV_REG_ADC_PLLM) {
163 		u_int8_t n;
164 		n = sv_indirect_get(sc, reg);
165 		if (n != val) {
166 			device_printf(sc->dev, "sv_indirect_set register 0x%02x %d != %d line %d\n", reg, n, val, line);
167 		}
168 	}
169 }
170 
171 static void
172 sv_dma_set_config(bus_space_tag_t st, bus_space_handle_t sh,
173 		  u_int32_t base, u_int32_t count, u_int8_t mode)
174 {
175 	bus_space_write_4(st, sh, SV_DMA_ADDR, base);
176 	bus_space_write_4(st, sh, SV_DMA_COUNT, count & 0xffffff);
177 	bus_space_write_1(st, sh, SV_DMA_MODE, mode);
178 
179 	DEB(printf("base 0x%08x count %5d mode 0x%02x\n",
180 		   base, count, mode));
181 }
182 
183 static u_int32_t
184 sv_dma_get_count(bus_space_tag_t st, bus_space_handle_t sh)
185 {
186 	return bus_space_read_4(st, sh, SV_DMA_COUNT) & 0xffffff;
187 }
188 
189 /* ------------------------------------------------------------------------- */
190 /* Play / Record Common Interface */
191 
192 static void *
193 svchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
194 {
195 	struct sc_info		*sc = devinfo;
196 	struct sc_chinfo	*ch;
197 	ch = (dir == PCMDIR_PLAY) ? &sc->pch : &sc->rch;
198 
199 	ch->parent = sc;
200 	ch->channel = c;
201 	ch->dir = dir;
202 
203 	if (sndbuf_alloc(b, sc->parent_dmat, 0, sc->bufsz) != 0) {
204 		DEB(printf("svchan_init failed\n"));
205 		return NULL;
206 	}
207 	ch->buffer = b;
208 	ch->fmt = SND_FORMAT(AFMT_U8, 1, 0);
209 	ch->spd = DSP_DEFAULT_SPEED;
210 	ch->dma_active = ch->dma_was_active = 0;
211 
212 	return ch;
213 }
214 
215 static struct pcmchan_caps *
216 svchan_getcaps(kobj_t obj, void *data)
217 {
218         return &sc_caps;
219 }
220 
221 static u_int32_t
222 svchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
223 {
224 	struct sc_chinfo *ch = data;
225 	struct sc_info *sc = ch->parent;
226 
227         /* user has requested interrupts every blocksize bytes */
228 	RANGE(blocksize, SV_MIN_BLKSZ, sc->bufsz / SV_INTR_PER_BUFFER);
229 	sndbuf_resize(ch->buffer, SV_INTR_PER_BUFFER, blocksize);
230 	DEB(printf("svchan_setblocksize: %d\n", blocksize));
231 	return blocksize;
232 }
233 
234 static int
235 svchan_setformat(kobj_t obj, void *data, u_int32_t format)
236 {
237 	struct sc_chinfo *ch = data;
238 	/* NB Just note format here as setting format register
239 	 * generates noise if dma channel is inactive. */
240 	ch->fmt  = (AFMT_CHANNEL(format) > 1) ? SV_AFMT_STEREO : SV_AFMT_MONO;
241 	ch->fmt |= (format & AFMT_16BIT) ? SV_AFMT_S16 : SV_AFMT_U8;
242 	return 0;
243 }
244 
245 static u_int32_t
246 svchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
247 {
248 	struct sc_chinfo *ch = data;
249 	RANGE(speed, 8000, 48000);
250 	ch->spd = speed;
251 	return speed;
252 }
253 
254 /* ------------------------------------------------------------------------- */
255 /* Recording interface */
256 
257 static int
258 sv_set_recspeed(struct sc_info *sc, u_int32_t speed)
259 {
260 	u_int32_t	f_out, f_actual;
261 	u_int32_t	rs, re, r, best_r = 0, r2, t, n, best_n = 0;
262 	int32_t		m, best_m = 0, ms, me, err, min_err;
263 
264 	/* This algorithm is a variant described in sonicvibes.pdf
265 	 * appendix A.  This search is marginally more extensive and
266 	 * results in (nominally) better sample rate matching. */
267 
268 	f_out = SV_F_SCALE * speed;
269 	min_err = 0x7fffffff;
270 
271 	/* Find bounds of r to examine, rs <= r <= re */
272 	t = 80000000 / f_out;
273 	for (rs = 1; (1 << rs) < t; rs++);
274 
275 	t = 150000000 / f_out;
276 	for (re = 1; (2 << re) < t; re++);
277 	if (re > 7) re = 7;
278 
279 	/* Search over r, n, m */
280 	for (r = rs; r <= re; r++) {
281 		r2 = (1 << r);
282 		for (n = 3; n < 34; n++) {
283 			m = f_out * n / (SV_F_REF / r2);
284 			ms = (m > 3) ? (m - 1) : 3;
285 			me = (m < 129) ? (m + 1) : 129;
286 			for (m = ms; m <= me; m++) {
287 				f_actual = m * SV_F_REF / (n * r2);
288 				if (f_actual > f_out) {
289 					err = f_actual - f_out;
290 				} else {
291 					err = f_out - f_actual;
292 				}
293 				if (err < min_err) {
294 					best_r = r;
295 					best_m = m - 2;
296 					best_n = n - 2;
297 					min_err = err;
298 					if (err == 0) break;
299 				}
300 			}
301 		}
302 	}
303 
304 	sv_indirect_set(sc, SV_REG_ADC_PLLM, best_m);
305 	sv_indirect_set(sc, SV_REG_ADC_PLLN,
306 			SV_ADC_PLLN(best_n) | SV_ADC_PLLR(best_r));
307 	DEB(printf("svrchan_setspeed: %d -> PLLM 0x%02x PLLNR 0x%08x\n",
308 		   speed,
309 		   sv_indirect_get(sc, SV_REG_ADC_PLLM),
310 		   sv_indirect_get(sc, SV_REG_ADC_PLLN)));
311 	return 0;
312 }
313 
314 static int
315 svrchan_trigger(kobj_t obj, void *data, int go)
316 {
317 	struct sc_chinfo	*ch = data;
318 	struct sc_info 		*sc = ch->parent;
319 	u_int32_t		count, enable;
320 	u_int8_t		v;
321 
322 	switch(go) {
323 	case PCMTRIG_START:
324 		/* Set speed */
325 		sv_set_recspeed(sc, ch->spd);
326 
327 		/* Set format */
328 		v  = sv_indirect_get(sc, SV_REG_FORMAT) & ~SV_AFMT_DMAC_MSK;
329 		v |= SV_AFMT_DMAC(ch->fmt);
330 		sv_indirect_set(sc, SV_REG_FORMAT, v);
331 
332 		/* Program DMA */
333 		count = sndbuf_getsize(ch->buffer) / 2; /* DMAC uses words */
334 		sv_dma_set_config(sc->dmac_st, sc->dmac_sh,
335 				  sndbuf_getbufaddr(ch->buffer),
336 				  count - 1,
337 				  SV_DMA_MODE_AUTO | SV_DMA_MODE_RD);
338 		count = count / SV_INTR_PER_BUFFER - 1;
339 		sv_indirect_set(sc, SV_REG_DMAC_COUNT_HI, count >> 8);
340 		sv_indirect_set(sc, SV_REG_DMAC_COUNT_LO, count & 0xff);
341 
342 		/* Enable DMA */
343 		enable = sv_indirect_get(sc, SV_REG_ENABLE) | SV_RECORD_ENABLE;
344 		sv_indirect_set(sc, SV_REG_ENABLE, enable);
345 		ch->dma_active = 1;
346 		break;
347 	case PCMTRIG_STOP:
348 	case PCMTRIG_ABORT:
349 		enable = sv_indirect_get(sc, SV_REG_ENABLE) & ~SV_RECORD_ENABLE;
350 		sv_indirect_set(sc, SV_REG_ENABLE, enable);
351 		ch->dma_active = 0;
352 		break;
353 	}
354 
355 	return 0;
356 }
357 
358 static u_int32_t
359 svrchan_getptr(kobj_t obj, void *data)
360 {
361 	struct sc_chinfo	*ch = data;
362 	struct sc_info 		*sc = ch->parent;
363 	u_int32_t sz, remain;
364 
365 	sz = sndbuf_getsize(ch->buffer);
366 	/* DMAC uses words */
367 	remain = (sv_dma_get_count(sc->dmac_st, sc->dmac_sh) + 1) * 2;
368 	return sz - remain;
369 }
370 
371 static kobj_method_t svrchan_methods[] = {
372         KOBJMETHOD(channel_init,                svchan_init),
373         KOBJMETHOD(channel_setformat,           svchan_setformat),
374         KOBJMETHOD(channel_setspeed,            svchan_setspeed),
375         KOBJMETHOD(channel_setblocksize,        svchan_setblocksize),
376         KOBJMETHOD(channel_trigger,             svrchan_trigger),
377         KOBJMETHOD(channel_getptr,              svrchan_getptr),
378         KOBJMETHOD(channel_getcaps,             svchan_getcaps),
379 	KOBJMETHOD_END
380 };
381 CHANNEL_DECLARE(svrchan);
382 
383 /* ------------------------------------------------------------------------- */
384 /* Playback interface */
385 
386 static int
387 svpchan_trigger(kobj_t obj, void *data, int go)
388 {
389 	struct sc_chinfo	*ch = data;
390 	struct sc_info		*sc = ch->parent;
391 	u_int32_t		count, enable, speed;
392 	u_int8_t		v;
393 
394 	switch(go) {
395 	case PCMTRIG_START:
396 		/* Set speed */
397 		speed = (ch->spd * 65536) / 48000;
398 		if (speed > 65535)
399 			speed = 65535;
400 		sv_indirect_set(sc, SV_REG_PCM_SAMPLING_HI, speed >> 8);
401 		sv_indirect_set(sc, SV_REG_PCM_SAMPLING_LO, speed & 0xff);
402 
403 		/* Set format */
404 		v  = sv_indirect_get(sc, SV_REG_FORMAT) & ~SV_AFMT_DMAA_MSK;
405 		v |= SV_AFMT_DMAA(ch->fmt);
406 		sv_indirect_set(sc, SV_REG_FORMAT, v);
407 
408 		/* Program DMA */
409 		count = sndbuf_getsize(ch->buffer);
410 		sv_dma_set_config(sc->dmaa_st, sc->dmaa_sh,
411 				  sndbuf_getbufaddr(ch->buffer),
412 				  count - 1,
413 				  SV_DMA_MODE_AUTO | SV_DMA_MODE_WR);
414 		count = count / SV_INTR_PER_BUFFER - 1;
415 		sv_indirect_set(sc, SV_REG_DMAA_COUNT_HI, count >> 8);
416 		sv_indirect_set(sc, SV_REG_DMAA_COUNT_LO, count & 0xff);
417 
418 		/* Enable DMA */
419 		enable = sv_indirect_get(sc, SV_REG_ENABLE);
420 		enable = (enable | SV_PLAY_ENABLE) & ~SV_PLAYBACK_PAUSE;
421 		sv_indirect_set(sc, SV_REG_ENABLE, enable);
422 		ch->dma_active = 1;
423 		break;
424 	case PCMTRIG_STOP:
425 	case PCMTRIG_ABORT:
426 		enable = sv_indirect_get(sc, SV_REG_ENABLE) & ~SV_PLAY_ENABLE;
427 		sv_indirect_set(sc, SV_REG_ENABLE, enable);
428 		ch->dma_active = 0;
429 		break;
430 	}
431 
432 	return 0;
433 }
434 
435 static u_int32_t
436 svpchan_getptr(kobj_t obj, void *data)
437 {
438 	struct sc_chinfo	*ch = data;
439 	struct sc_info 		*sc = ch->parent;
440 	u_int32_t sz, remain;
441 
442 	sz = sndbuf_getsize(ch->buffer);
443 	/* DMAA uses bytes */
444 	remain = sv_dma_get_count(sc->dmaa_st, sc->dmaa_sh) + 1;
445 	return (sz - remain);
446 }
447 
448 static kobj_method_t svpchan_methods[] = {
449         KOBJMETHOD(channel_init,                svchan_init),
450         KOBJMETHOD(channel_setformat,           svchan_setformat),
451         KOBJMETHOD(channel_setspeed,            svchan_setspeed),
452         KOBJMETHOD(channel_setblocksize,        svchan_setblocksize),
453         KOBJMETHOD(channel_trigger,             svpchan_trigger),
454         KOBJMETHOD(channel_getptr,              svpchan_getptr),
455         KOBJMETHOD(channel_getcaps,             svchan_getcaps),
456 	KOBJMETHOD_END
457 };
458 CHANNEL_DECLARE(svpchan);
459 
460 /* ------------------------------------------------------------------------- */
461 /* Mixer support */
462 
463 struct sv_mix_props {
464 	u_int8_t	reg;		/* Register */
465 	u_int8_t	stereo:1;	/* Supports 2 channels */
466 	u_int8_t	mute:1;		/* Supports muting */
467 	u_int8_t	neg:1;		/* Negative gain */
468 	u_int8_t	max;		/* Max gain */
469 	u_int8_t	iselect;	/* Input selector */
470 } static const mt [SOUND_MIXER_NRDEVICES] = {
471 	[SOUND_MIXER_LINE1]  = {SV_REG_AUX1,      1, 1, 1, SV_DEFAULT_MAX, SV_INPUT_AUX1},
472 	[SOUND_MIXER_CD]     = {SV_REG_CD,        1, 1, 1, SV_DEFAULT_MAX, SV_INPUT_CD},
473 	[SOUND_MIXER_LINE]   = {SV_REG_LINE,      1, 1, 1, SV_DEFAULT_MAX, SV_INPUT_LINE},
474 	[SOUND_MIXER_MIC]    = {SV_REG_MIC,       0, 1, 1, SV_MIC_MAX,     SV_INPUT_MIC},
475 	[SOUND_MIXER_SYNTH]  = {SV_REG_SYNTH,     0, 1, 1, SV_DEFAULT_MAX, 0},
476 	[SOUND_MIXER_LINE2]  = {SV_REG_AUX2,      1, 1, 1, SV_DEFAULT_MAX, SV_INPUT_AUX2},
477 	[SOUND_MIXER_VOLUME] = {SV_REG_MIX,       1, 1, 1, SV_DEFAULT_MAX, 0},
478 	[SOUND_MIXER_PCM]    = {SV_REG_PCM,       1, 1, 1, SV_PCM_MAX,     0},
479 	[SOUND_MIXER_RECLEV] = {SV_REG_ADC_INPUT, 1, 0, 0, SV_ADC_MAX, 0},
480 };
481 
482 static void
483 sv_channel_gain(struct sc_info *sc, u_int32_t dev, u_int32_t gain, u_int32_t channel)
484 {
485 	u_int8_t	v;
486 	int32_t		g;
487 
488 	g = mt[dev].max * gain / 100;
489 	if (mt[dev].neg)
490 		g = mt[dev].max - g;
491 	v  = sv_indirect_get(sc, mt[dev].reg + channel) & ~mt[dev].max;
492 	v |= g;
493 
494 	if (mt[dev].mute) {
495 		if (gain == 0) {
496 			v |= SV_MUTE;
497 		} else {
498 			v &= ~SV_MUTE;
499 		}
500 	}
501 	sv_indirect_set(sc, mt[dev].reg + channel, v);
502 }
503 
504 static int
505 sv_gain(struct sc_info *sc, u_int32_t dev, u_int32_t left, u_int32_t right)
506 {
507 	sv_channel_gain(sc, dev, left, 0);
508 	if (mt[dev].stereo)
509 		sv_channel_gain(sc, dev, right, 1);
510 	return 0;
511 }
512 
513 static void
514 sv_mix_mute_all(struct sc_info *sc)
515 {
516 	int32_t i;
517 	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
518 		if (mt[i].reg) sv_gain(sc, i, 0, 0);
519 	}
520 }
521 
522 static int
523 sv_mix_init(struct snd_mixer *m)
524 {
525 	u_int32_t 	i, v;
526 
527 	for(i = v = 0; i < SOUND_MIXER_NRDEVICES; i++) {
528 		if (mt[i].max) v |= (1 << i);
529 	}
530 	mix_setdevs(m, v);
531 
532 	for(i = v = 0; i < SOUND_MIXER_NRDEVICES; i++) {
533 		if (mt[i].iselect) v |= (1 << i);
534 	}
535 	mix_setrecdevs(m, v);
536 
537 	return 0;
538 }
539 
540 static int
541 sv_mix_set(struct snd_mixer *m, u_int32_t dev, u_int32_t left, u_int32_t right)
542 {
543 	struct sc_info	*sc = mix_getdevinfo(m);
544 	return sv_gain(sc, dev, left, right);
545 }
546 
547 static u_int32_t
548 sv_mix_setrecsrc(struct snd_mixer *m, u_int32_t mask)
549 {
550 	struct sc_info	*sc = mix_getdevinfo(m);
551 	u_int32_t	i, v;
552 
553 	v = sv_indirect_get(sc, SV_REG_ADC_INPUT) & SV_INPUT_GAIN_MASK;
554 	for(i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
555 		if ((1 << i) & mask) {
556 			v |= mt[i].iselect;
557 		}
558 	}
559 	DEB(printf("sv_mix_setrecsrc: mask 0x%08x adc_input 0x%02x\n", mask, v));
560 	sv_indirect_set(sc, SV_REG_ADC_INPUT, v);
561 	return mask;
562 }
563 
564 static kobj_method_t sv_mixer_methods[] = {
565         KOBJMETHOD(mixer_init,		sv_mix_init),
566         KOBJMETHOD(mixer_set,		sv_mix_set),
567         KOBJMETHOD(mixer_setrecsrc,	sv_mix_setrecsrc),
568 	KOBJMETHOD_END
569 };
570 MIXER_DECLARE(sv_mixer);
571 
572 /* ------------------------------------------------------------------------- */
573 /* Power management and reset */
574 
575 static void
576 sv_power(struct sc_info *sc, int state)
577 {
578 	u_int8_t v;
579 
580         switch (state) {
581         case 0:
582 		/* power on */
583 		v = sv_indirect_get(sc, SV_REG_ANALOG_PWR) &~ SV_ANALOG_OFF;
584 		v |= SV_ANALOG_OFF_SRS | SV_ANALOG_OFF_SPLL;
585 		sv_indirect_set(sc, SV_REG_ANALOG_PWR, v);
586 		v = sv_indirect_get(sc, SV_REG_DIGITAL_PWR) &~ SV_DIGITAL_OFF;
587 		v |= SV_DIGITAL_OFF_SYN | SV_DIGITAL_OFF_MU | SV_DIGITAL_OFF_GP;
588 		sv_indirect_set(sc, SV_REG_DIGITAL_PWR, v);
589                 break;
590         default:
591 		/* power off */
592 		v = sv_indirect_get(sc, SV_REG_ANALOG_PWR) | SV_ANALOG_OFF;
593 		sv_indirect_set(sc, SV_REG_ANALOG_PWR, v);
594 		v = sv_indirect_get(sc, SV_REG_DIGITAL_PWR) | SV_DIGITAL_OFF;
595 		sv_indirect_set(sc, SV_REG_DIGITAL_PWR, SV_DIGITAL_OFF);
596                 break;
597         }
598         DEB(printf("Power state %d\n", state));
599 }
600 
601 static int
602 sv_init(struct sc_info *sc)
603 {
604 	u_int8_t	v;
605 
606 	/* Effect reset */
607 	v  = sv_direct_get(sc, SV_CM_CONTROL) & ~SV_CM_CONTROL_ENHANCED;
608 	v |= SV_CM_CONTROL_RESET;
609 	sv_direct_set(sc, SV_CM_CONTROL, v);
610 	DELAY(50);
611 
612 	v = sv_direct_get(sc, SV_CM_CONTROL) & ~SV_CM_CONTROL_RESET;
613 	sv_direct_set(sc, SV_CM_CONTROL, v);
614 	DELAY(50);
615 
616 	/* Set in enhanced mode */
617 	v = sv_direct_get(sc, SV_CM_CONTROL);
618 	v |= SV_CM_CONTROL_ENHANCED;
619 	sv_direct_set(sc, SV_CM_CONTROL, v);
620 
621 	/* Enable interrupts (UDM and MIDM are superfluous) */
622 	v = sv_direct_get(sc, SV_CM_IMR);
623 	v &= ~(SV_CM_IMR_AMSK | SV_CM_IMR_CMSK | SV_CM_IMR_SMSK);
624 	sv_direct_set(sc, SV_CM_IMR, v);
625 
626 	/* Select ADC PLL for ADC clock */
627 	v = sv_indirect_get(sc, SV_REG_CLOCK_SOURCE) & ~SV_CLOCK_ALTERNATE;
628 	sv_indirect_set(sc, SV_REG_CLOCK_SOURCE, v);
629 
630 	/* Disable loopback - binds ADC and DAC rates */
631 	v = sv_indirect_get(sc, SV_REG_LOOPBACK) & ~SV_LOOPBACK_ENABLE;
632 	sv_indirect_set(sc, SV_REG_LOOPBACK, v);
633 
634 	/* Disable SRS */
635 	v = sv_indirect_get(sc, SV_REG_SRS_SPACE) | SV_SRS_DISABLED;
636 	sv_indirect_set(sc, SV_REG_SRS_SPACE, v);
637 
638 	/* Get revision */
639 	sc->rev = sv_indirect_get(sc, SV_REG_REVISION);
640 
641 	return 0;
642 }
643 
644 static int
645 sv_suspend(device_t dev)
646 {
647 	struct sc_info	*sc = pcm_getdevinfo(dev);
648 
649 	sc->rch.dma_was_active = sc->rch.dma_active;
650 	svrchan_trigger(NULL, &sc->rch, PCMTRIG_ABORT);
651 
652 	sc->pch.dma_was_active = sc->pch.dma_active;
653 	svrchan_trigger(NULL, &sc->pch, PCMTRIG_ABORT);
654 
655 	sv_mix_mute_all(sc);
656 	sv_power(sc, 3);
657 
658 	return 0;
659 }
660 
661 static int
662 sv_resume(device_t dev)
663 {
664 	struct sc_info	*sc = pcm_getdevinfo(dev);
665 
666 	sv_mix_mute_all(sc);
667 	sv_power(sc, 0);
668 	if (sv_init(sc) == -1) {
669 		device_printf(dev, "unable to reinitialize the card\n");
670 		return ENXIO;
671 	}
672 
673 	if (mixer_reinit(dev) == -1) {
674 		device_printf(dev, "unable to reinitialize the mixer\n");
675                 return ENXIO;
676         }
677 
678 	if (sc->rch.dma_was_active) {
679 		svrchan_trigger(0, &sc->rch, PCMTRIG_START);
680 	}
681 
682 	if (sc->pch.dma_was_active) {
683 		svpchan_trigger(0, &sc->pch, PCMTRIG_START);
684 	}
685 
686 	return 0;
687 }
688 
689 /* ------------------------------------------------------------------------- */
690 /* Resource related */
691 
692 static void
693 sv_intr(void *data)
694 {
695 	struct sc_info	*sc = data;
696 	u_int8_t	status;
697 
698 	status = sv_direct_get(sc, SV_CM_STATUS);
699 	if (status & SV_CM_STATUS_AINT)
700 		chn_intr(sc->pch.channel);
701 
702 	if (status & SV_CM_STATUS_CINT)
703 		chn_intr(sc->rch.channel);
704 
705 	status &= ~(SV_CM_STATUS_AINT|SV_CM_STATUS_CINT);
706 	DEB(if (status) printf("intr 0x%02x ?\n", status));
707 
708 	return;
709 }
710 
711 static int
712 sv_probe(device_t dev)
713 {
714 	switch(pci_get_devid(dev)) {
715 	case SV_PCI_ID:
716 		device_set_desc(dev, "S3 Sonicvibes");
717 		return BUS_PROBE_DEFAULT;
718 	default:
719 		return ENXIO;
720 	}
721 }
722 
723 static int
724 sv_attach(device_t dev) {
725 	struct sc_info	*sc;
726 	rman_res_t	count, midi_start, games_start;
727 	u_int32_t	data;
728 	char		status[SND_STATUSLEN];
729 	u_long		sdmaa, sdmac, ml, mu;
730 
731 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
732 	sc->dev = dev;
733 
734 	pci_enable_busmaster(dev);
735 
736         if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
737                 device_printf(dev, "chip is in D%d power mode "
738                               "-- setting to D0\n", pci_get_powerstate(dev));
739                 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
740         }
741 	sc->enh_rid  = SV_PCI_ENHANCED;
742 	sc->enh_type = SYS_RES_IOPORT;
743 	sc->enh_reg  = bus_alloc_resource_any(dev, sc->enh_type,
744 					      &sc->enh_rid, RF_ACTIVE);
745 	if (sc->enh_reg == NULL) {
746 		device_printf(dev, "sv_attach: cannot allocate enh\n");
747 		return ENXIO;
748 	}
749 	sc->enh_st = rman_get_bustag(sc->enh_reg);
750 	sc->enh_sh = rman_get_bushandle(sc->enh_reg);
751 
752 	data = pci_read_config(dev, SV_PCI_DMAA, 4);
753 	DEB(printf("sv_attach: initial dmaa 0x%08x\n", data));
754 	data = pci_read_config(dev, SV_PCI_DMAC, 4);
755 	DEB(printf("sv_attach: initial dmac 0x%08x\n", data));
756 
757 	/* Initialize DMA_A and DMA_C */
758 	pci_write_config(dev, SV_PCI_DMAA, SV_PCI_DMA_EXTENDED, 4);
759 	pci_write_config(dev, SV_PCI_DMAC, 0, 4);
760 
761 	/* Register IRQ handler */
762 	sc->irqid = 0;
763         sc->irq   = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid,
764 					   RF_ACTIVE | RF_SHAREABLE);
765         if (!sc->irq ||
766 	    snd_setup_intr(dev, sc->irq, 0, sv_intr, sc, &sc->ih)) {
767                 device_printf(dev, "sv_attach: Unable to map interrupt\n");
768                 goto fail;
769         }
770 
771 	sc->bufsz = pcm_getbuffersize(dev, 4096, SV_DEFAULT_BUFSZ, 65536);
772         if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
773 			       /*boundary*/0,
774                                /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
775                                /*highaddr*/BUS_SPACE_MAXADDR,
776                                /*filter*/NULL, /*filterarg*/NULL,
777                                /*maxsize*/sc->bufsz, /*nsegments*/1,
778                                /*maxsegz*/0x3ffff, /*flags*/0,
779 			       /*lockfunc*/busdma_lock_mutex,
780 			       /*lockarg*/&Giant, &sc->parent_dmat) != 0) {
781                 device_printf(dev, "sv_attach: Unable to create dma tag\n");
782                 goto fail;
783         }
784 
785 	/* Power up and initialize */
786 	sv_mix_mute_all(sc);
787 	sv_power(sc, 0);
788 	sv_init(sc);
789 
790 	if (mixer_init(dev, &sv_mixer_class, sc) != 0) {
791 		device_printf(dev, "sv_attach: Mixer failed to initialize\n");
792 		goto fail;
793 	}
794 
795 	/* XXX This is a hack, and it's ugly.  Okay, the deal is this
796 	 * card has two more io regions that available for automatic
797 	 * configuration by the pci code.  These need to be allocated
798 	 * to used as control registers for the DMA engines.
799 	 * Unfortunately FBSD has no bus_space_foo() functions so we
800 	 * have to grab port space in region of existing resources.  Go
801 	 * for space between midi and game ports.
802 	 */
803 	bus_get_resource(dev, SYS_RES_IOPORT, SV_PCI_MIDI, &midi_start, &count);
804 	bus_get_resource(dev, SYS_RES_IOPORT, SV_PCI_GAMES, &games_start, &count);
805 
806 	if (games_start < midi_start) {
807 		ml = games_start;
808 		mu = midi_start;
809 	} else {
810 		ml = midi_start;
811 		mu = games_start;
812 	}
813 	/* Check assumptions about space availability and
814            alignment. How driver loaded can determine whether
815            games_start > midi_start or vice versa */
816 	if ((mu - ml >= 0x800)  ||
817 	    ((mu - ml) % 0x200)) {
818 		device_printf(dev, "sv_attach: resource assumptions not met "
819 			      "(midi 0x%08lx, games 0x%08lx)\n",
820 			      (u_long)midi_start, (u_long)games_start);
821 		goto fail;
822 	}
823 
824 	sdmaa = ml + 0x40;
825 	sdmac = sdmaa + 0x40;
826 
827 	/* Add resources to list of pci resources for this device - from here on
828 	 * they look like normal pci resources. */
829 	bus_set_resource(dev, SYS_RES_IOPORT, SV_PCI_DMAA, sdmaa, SV_PCI_DMAA_SIZE);
830 	bus_set_resource(dev, SYS_RES_IOPORT, SV_PCI_DMAC, sdmac, SV_PCI_DMAC_SIZE);
831 
832 	/* Cache resource short-cuts for dma_a */
833 	sc->dmaa_rid = SV_PCI_DMAA;
834 	sc->dmaa_type = SYS_RES_IOPORT;
835 	sc->dmaa_reg  = bus_alloc_resource_any(dev, sc->dmaa_type,
836 					       &sc->dmaa_rid, RF_ACTIVE);
837 	if (sc->dmaa_reg == NULL) {
838 		device_printf(dev, "sv_attach: cannot allocate dmaa\n");
839 		goto fail;
840 	}
841 	sc->dmaa_st = rman_get_bustag(sc->dmaa_reg);
842 	sc->dmaa_sh = rman_get_bushandle(sc->dmaa_reg);
843 
844 	/* Poke port into dma_a configuration, nb bit flags to enable dma */
845 	data = pci_read_config(dev, SV_PCI_DMAA, 4) | SV_PCI_DMA_ENABLE | SV_PCI_DMA_EXTENDED;
846 	data = ((u_int32_t)sdmaa & 0xfffffff0) | (data & 0x0f);
847 	pci_write_config(dev, SV_PCI_DMAA, data, 4);
848 	DEB(printf("dmaa: 0x%x 0x%x\n", data, pci_read_config(dev, SV_PCI_DMAA, 4)));
849 
850 	/* Cache resource short-cuts for dma_c */
851 	sc->dmac_rid = SV_PCI_DMAC;
852 	sc->dmac_type = SYS_RES_IOPORT;
853 	sc->dmac_reg  = bus_alloc_resource_any(dev, sc->dmac_type,
854 					       &sc->dmac_rid, RF_ACTIVE);
855 	if (sc->dmac_reg == NULL) {
856 		device_printf(dev, "sv_attach: cannot allocate dmac\n");
857 		goto fail;
858 	}
859 	sc->dmac_st = rman_get_bustag(sc->dmac_reg);
860 	sc->dmac_sh = rman_get_bushandle(sc->dmac_reg);
861 
862 	/* Poke port into dma_c configuration, nb bit flags to enable dma */
863 	data = pci_read_config(dev, SV_PCI_DMAC, 4) | SV_PCI_DMA_ENABLE | SV_PCI_DMA_EXTENDED;
864 	data = ((u_int32_t)sdmac & 0xfffffff0) | (data & 0x0f);
865 	pci_write_config(dev, SV_PCI_DMAC, data, 4);
866 	DEB(printf("dmac: 0x%x 0x%x\n", data, pci_read_config(dev, SV_PCI_DMAC, 4)));
867 
868 	if (bootverbose)
869 		printf("Sonicvibes: revision %d.\n", sc->rev);
870 
871         if (pcm_register(dev, sc, 1, 1)) {
872 		device_printf(dev, "sv_attach: pcm_register fail\n");
873                 goto fail;
874 	}
875 
876         pcm_addchan(dev, PCMDIR_PLAY, &svpchan_class, sc);
877         pcm_addchan(dev, PCMDIR_REC,  &svrchan_class, sc);
878 
879         snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd %s",
880                  rman_get_start(sc->enh_reg),  rman_get_start(sc->irq),PCM_KLDSTRING(snd_vibes));
881         pcm_setstatus(dev, status);
882 
883         DEB(printf("sv_attach: succeeded\n"));
884 
885 	return 0;
886 
887  fail:
888 	if (sc->parent_dmat)
889 		bus_dma_tag_destroy(sc->parent_dmat);
890         if (sc->ih)
891 		bus_teardown_intr(dev, sc->irq, sc->ih);
892         if (sc->irq)
893 		bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq);
894 	if (sc->enh_reg)
895 		bus_release_resource(dev, sc->enh_type, sc->enh_rid, sc->enh_reg);
896 	if (sc->dmaa_reg)
897 		bus_release_resource(dev, sc->dmaa_type, sc->dmaa_rid, sc->dmaa_reg);
898 	if (sc->dmac_reg)
899 		bus_release_resource(dev, sc->dmac_type, sc->dmac_rid, sc->dmac_reg);
900 	return ENXIO;
901 }
902 
903 static int
904 sv_detach(device_t dev) {
905 	struct sc_info	*sc;
906 	int		r;
907 
908 	r = pcm_unregister(dev);
909 	if (r) return r;
910 
911 	sc = pcm_getdevinfo(dev);
912 	sv_mix_mute_all(sc);
913 	sv_power(sc, 3);
914 
915 	bus_dma_tag_destroy(sc->parent_dmat);
916 	bus_teardown_intr(dev, sc->irq, sc->ih);
917 	bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq);
918 	bus_release_resource(dev, sc->enh_type, sc->enh_rid, sc->enh_reg);
919 	bus_release_resource(dev, sc->dmaa_type, sc->dmaa_rid, sc->dmaa_reg);
920 	bus_release_resource(dev, sc->dmac_type, sc->dmac_rid, sc->dmac_reg);
921 
922 	free(sc, M_DEVBUF);
923 
924 	return 0;
925 }
926 
927 static device_method_t sc_methods[] = {
928         DEVMETHOD(device_probe,         sv_probe),
929         DEVMETHOD(device_attach,        sv_attach),
930         DEVMETHOD(device_detach,        sv_detach),
931         DEVMETHOD(device_resume,        sv_resume),
932         DEVMETHOD(device_suspend,       sv_suspend),
933         { 0, 0 }
934 };
935 
936 static driver_t sonicvibes_driver = {
937         "pcm",
938         sc_methods,
939         PCM_SOFTC_SIZE
940 };
941 
942 DRIVER_MODULE(snd_vibes, pci, sonicvibes_driver, pcm_devclass, 0, 0);
943 MODULE_DEPEND(snd_vibes, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
944 MODULE_VERSION(snd_vibes, 1);
945