xref: /dragonfly/sys/dev/sound/pci/solo.c (revision 9b5a9965)
1 /*-
2  * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  *
25  * $FreeBSD: src/sys/dev/sound/pci/solo.c,v 1.35.2.4 2006/07/13 01:53:54 yongari Exp $
26  * $DragonFly: src/sys/dev/sound/pci/solo.c,v 1.10 2007/06/16 20:07:19 dillon Exp $
27  */
28 
29 #include <dev/sound/pcm/sound.h>
30 
31 #include <bus/pci/pcireg.h>
32 #include <bus/pci/pcivar.h>
33 
34 #include  <dev/sound/isa/sb.h>
35 #include  <dev/sound/chip.h>
36 
37 #include "mixer_if.h"
38 
39 SND_DECLARE_FILE("$DragonFly: src/sys/dev/sound/pci/solo.c,v 1.10 2007/06/16 20:07:19 dillon Exp $");
40 
41 #define SOLO_DEFAULT_BUFSZ 16384
42 #define ABS(x) (((x) < 0)? -(x) : (x))
43 
44 /* if defined, playback always uses the 2nd channel and full duplex works */
45 #define ESS18XX_DUPLEX	1
46 
47 /* more accurate clocks and split audio1/audio2 rates */
48 #define ESS18XX_NEWSPEED
49 
50 /* 1 = INTR_MPSAFE, 0 = GIANT */
51 #define ESS18XX_MPSAFE	1
52 
53 static u_int32_t ess_playfmt[] = {
54 	AFMT_U8,
55 	AFMT_STEREO | AFMT_U8,
56 	AFMT_S8,
57 	AFMT_STEREO | AFMT_S8,
58 	AFMT_S16_LE,
59 	AFMT_STEREO | AFMT_S16_LE,
60 	AFMT_U16_LE,
61 	AFMT_STEREO | AFMT_U16_LE,
62 	0
63 };
64 static struct pcmchan_caps ess_playcaps = {6000, 48000, ess_playfmt, 0};
65 
66 /*
67  * Recording output is byte-swapped
68  */
69 static u_int32_t ess_recfmt[] = {
70 	AFMT_U8,
71 	AFMT_STEREO | AFMT_U8,
72 	AFMT_S8,
73 	AFMT_STEREO | AFMT_S8,
74 	AFMT_S16_BE,
75 	AFMT_STEREO | AFMT_S16_BE,
76 	AFMT_U16_BE,
77 	AFMT_STEREO | AFMT_U16_BE,
78 	0
79 };
80 static struct pcmchan_caps ess_reccaps = {6000, 48000, ess_recfmt, 0};
81 
82 struct ess_info;
83 
84 struct ess_chinfo {
85 	struct ess_info *parent;
86 	struct pcm_channel *channel;
87 	struct snd_dbuf *buffer;
88 	int dir, hwch, stopping;
89 	u_int32_t fmt, spd, blksz;
90 };
91 
92 struct ess_info {
93     	struct resource *io, *sb, *vc, *mpu, *gp;	/* I/O address for the board */
94     	struct resource *irq;
95 	void		*ih;
96     	bus_dma_tag_t parent_dmat;
97 
98     	int simplex_dir, type, duplex:1, newspeed:1, dmasz[2];
99 	unsigned int bufsz;
100 
101     	struct ess_chinfo pch, rch;
102 #if ESS18XX_MPSAFE == 1
103 	sndlock_t	lock;
104 #endif
105 };
106 
107 #if ESS18XX_MPSAFE == 1
108 #define ess_lock(_ess) snd_mtxlock((_ess)->lock)
109 #define ess_unlock(_ess) snd_mtxunlock((_ess)->lock)
110 #define ess_lock_assert(_ess) snd_mtxassert((_ess)->lock)
111 #else
112 #define ess_lock(_ess)
113 #define ess_unlock(_ess)
114 #define ess_lock_assert(_ess)
115 #endif
116 
117 static int ess_rd(struct ess_info *sc, int reg);
118 static void ess_wr(struct ess_info *sc, int reg, u_int8_t val);
119 static int ess_dspready(struct ess_info *sc);
120 static int ess_cmd(struct ess_info *sc, u_char val);
121 static int ess_cmd1(struct ess_info *sc, u_char cmd, int val);
122 static int ess_get_byte(struct ess_info *sc);
123 static void ess_setmixer(struct ess_info *sc, u_int port, u_int value);
124 static int ess_getmixer(struct ess_info *sc, u_int port);
125 static int ess_reset_dsp(struct ess_info *sc);
126 
127 static int ess_write(struct ess_info *sc, u_char reg, int val);
128 static int ess_read(struct ess_info *sc, u_char reg);
129 
130 static void ess_intr(void *arg);
131 static int ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len);
132 static int ess_start(struct ess_chinfo *ch);
133 static int ess_stop(struct ess_chinfo *ch);
134 
135 static int ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir);
136 static int ess_dmapos(struct ess_info *sc, int ch);
137 static int ess_dmatrigger(struct ess_info *sc, int ch, int go);
138 
139 /*
140  * Common code for the midi and pcm functions
141  *
142  * ess_cmd write a single byte to the CMD port.
143  * ess_cmd1 write a CMD + 1 byte arg
144  * ess_cmd2 write a CMD + 2 byte arg
145  * ess_get_byte returns a single byte from the DSP data port
146  *
147  * ess_write is actually ess_cmd1
148  * ess_read access ext. regs via ess_cmd(0xc0, reg) followed by ess_get_byte
149  */
150 
151 static int
152 port_rd(struct resource *port, int regno, int size)
153 {
154 	bus_space_tag_t st = rman_get_bustag(port);
155 	bus_space_handle_t sh = rman_get_bushandle(port);
156 
157 	switch (size) {
158 	case 1:
159 		return bus_space_read_1(st, sh, regno);
160 	case 2:
161 		return bus_space_read_2(st, sh, regno);
162 	case 4:
163 		return bus_space_read_4(st, sh, regno);
164 	default:
165 		return 0xffffffff;
166 	}
167 }
168 
169 static void
170 port_wr(struct resource *port, int regno, u_int32_t data, int size)
171 {
172 	bus_space_tag_t st = rman_get_bustag(port);
173 	bus_space_handle_t sh = rman_get_bushandle(port);
174 
175 	switch (size) {
176 	case 1:
177 		bus_space_write_1(st, sh, regno, data);
178 		break;
179 	case 2:
180 		bus_space_write_2(st, sh, regno, data);
181 		break;
182 	case 4:
183 		bus_space_write_4(st, sh, regno, data);
184 		break;
185 	}
186 }
187 
188 static int
189 ess_rd(struct ess_info *sc, int reg)
190 {
191 	return port_rd(sc->sb, reg, 1);
192 }
193 
194 static void
195 ess_wr(struct ess_info *sc, int reg, u_int8_t val)
196 {
197 	port_wr(sc->sb, reg, val, 1);
198 }
199 
200 static int
201 ess_dspready(struct ess_info *sc)
202 {
203 	return ((ess_rd(sc, SBDSP_STATUS) & 0x80) == 0);
204 }
205 
206 static int
207 ess_dspwr(struct ess_info *sc, u_char val)
208 {
209     	int  i;
210 
211     	for (i = 0; i < 1000; i++) {
212 		if (ess_dspready(sc)) {
213 	    		ess_wr(sc, SBDSP_CMD, val);
214 	    		return 1;
215 		}
216 		if (i > 10) DELAY((i > 100)? 1000 : 10);
217     	}
218     	kprintf("ess_dspwr(0x%02x) timed out.\n", val);
219     	return 0;
220 }
221 
222 static int
223 ess_cmd(struct ess_info *sc, u_char val)
224 {
225 	DEB(kprintf("ess_cmd: %x\n", val));
226     	return ess_dspwr(sc, val);
227 }
228 
229 static int
230 ess_cmd1(struct ess_info *sc, u_char cmd, int val)
231 {
232     	DEB(kprintf("ess_cmd1: %x, %x\n", cmd, val));
233     	if (ess_dspwr(sc, cmd)) {
234 		return ess_dspwr(sc, val & 0xff);
235     	} else return 0;
236 }
237 
238 static void
239 ess_setmixer(struct ess_info *sc, u_int port, u_int value)
240 {
241 	DEB(kprintf("ess_setmixer: reg=%x, val=%x\n", port, value);)
242     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
243     	DELAY(10);
244     	ess_wr(sc, SB_MIX_DATA, (u_char) (value & 0xff));
245     	DELAY(10);
246 }
247 
248 static int
249 ess_getmixer(struct ess_info *sc, u_int port)
250 {
251     	int val;
252 
253     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
254     	DELAY(10);
255     	val = ess_rd(sc, SB_MIX_DATA);
256     	DELAY(10);
257 
258     	return val;
259 }
260 
261 static int
262 ess_get_byte(struct ess_info *sc)
263 {
264     	int i;
265 
266     	for (i = 1000; i > 0; i--) {
267 		if (ess_rd(sc, 0xc) & 0x40)
268 			return ess_rd(sc, DSP_READ);
269 		else
270 			DELAY(20);
271     	}
272     	return -1;
273 }
274 
275 static int
276 ess_write(struct ess_info *sc, u_char reg, int val)
277 {
278     	return ess_cmd1(sc, reg, val);
279 }
280 
281 static int
282 ess_read(struct ess_info *sc, u_char reg)
283 {
284     	return (ess_cmd(sc, 0xc0) && ess_cmd(sc, reg))? ess_get_byte(sc) : -1;
285 }
286 
287 static int
288 ess_reset_dsp(struct ess_info *sc)
289 {
290 	DEB(kprintf("ess_reset_dsp\n"));
291     	ess_wr(sc, SBDSP_RST, 3);
292     	DELAY(100);
293     	ess_wr(sc, SBDSP_RST, 0);
294     	if (ess_get_byte(sc) != 0xAA) {
295         	DEB(kprintf("ess_reset_dsp failed\n"));
296 /*
297 			   rman_get_start(d->io_base)));
298 */
299 		return ENXIO;	/* Sorry */
300     	}
301     	ess_cmd(sc, 0xc6);
302     	return 0;
303 }
304 
305 static void
306 ess_intr(void *arg)
307 {
308     	struct ess_info *sc = (struct ess_info *)arg;
309 	int src, pirq = 0, rirq = 0;
310 
311 	ess_lock(sc);
312 	src = 0;
313 	if (ess_getmixer(sc, 0x7a) & 0x80)
314 		src |= 2;
315 	if (ess_rd(sc, 0x0c) & 0x01)
316 		src |= 1;
317 
318 	if (src == 0) {
319 		ess_unlock(sc);
320 		return;
321 	}
322 
323 	if (sc->duplex) {
324 		pirq = (src & sc->pch.hwch)? 1 : 0;
325 		rirq = (src & sc->rch.hwch)? 1 : 0;
326 	} else {
327 		if (sc->simplex_dir == PCMDIR_PLAY)
328 			pirq = 1;
329 		if (sc->simplex_dir == PCMDIR_REC)
330 			rirq = 1;
331 		if (!pirq && !rirq)
332 			kprintf("solo: IRQ neither playback nor rec!\n");
333 	}
334 
335 	DEB(kprintf("ess_intr: pirq:%d rirq:%d\n",pirq,rirq));
336 
337 	if (pirq) {
338 		if (sc->pch.stopping) {
339 			ess_dmatrigger(sc, sc->pch.hwch, 0);
340 			sc->pch.stopping = 0;
341 			if (sc->pch.hwch == 1)
342 				ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
343 			else
344 				ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x03);
345 		}
346 		ess_unlock(sc);
347 		chn_intr(sc->pch.channel);
348 		ess_lock(sc);
349 	}
350 
351 	if (rirq) {
352 		if (sc->rch.stopping) {
353 			ess_dmatrigger(sc, sc->rch.hwch, 0);
354 			sc->rch.stopping = 0;
355 			/* XXX: will this stop audio2? */
356 			ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
357 		}
358 		ess_unlock(sc);
359 		chn_intr(sc->rch.channel);
360 		ess_lock(sc);
361 	}
362 
363 	if (src & 2)
364 		ess_setmixer(sc, 0x7a, ess_getmixer(sc, 0x7a) & ~0x80);
365 	if (src & 1)
366     		ess_rd(sc, DSP_DATA_AVAIL);
367 
368 	ess_unlock(sc);
369 }
370 
371 /* utility functions for ESS */
372 static u_int8_t
373 ess_calcspeed8(int *spd)
374 {
375 	int speed = *spd;
376 	u_int32_t t;
377 
378 	if (speed > 22000) {
379 		t = (795500 + speed / 2) / speed;
380 		speed = (795500 + t / 2) / t;
381 		t = (256 - t) | 0x80;
382 	} else {
383 		t = (397700 + speed / 2) / speed;
384 		speed = (397700 + t / 2) / t;
385 		t = 128 - t;
386 	}
387 	*spd = speed;
388 	return t & 0x000000ff;
389 }
390 
391 static u_int8_t
392 ess_calcspeed9(int *spd)
393 {
394 	int speed, s0, s1, use0;
395 	u_int8_t t0, t1;
396 
397 	/* rate = source / (256 - divisor) */
398 	/* divisor = 256 - (source / rate) */
399 	speed = *spd;
400 	t0 = 128 - (793800 / speed);
401 	s0 = 793800 / (128 - t0);
402 
403 	t1 = 128 - (768000 / speed);
404 	s1 = 768000 / (128 - t1);
405 	t1 |= 0x80;
406 
407 	use0 = (ABS(speed - s0) < ABS(speed - s1))? 1 : 0;
408 
409 	*spd = use0? s0 : s1;
410 	return use0? t0 : t1;
411 }
412 
413 static u_int8_t
414 ess_calcfilter(int spd)
415 {
416 	int cutoff;
417 
418 	/* cutoff = 7160000 / (256 - divisor) */
419 	/* divisor = 256 - (7160000 / cutoff) */
420 	cutoff = (spd * 9 * 82) / 20;
421 	return (256 - (7160000 / cutoff));
422 }
423 
424 static int
425 ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len)
426 {
427 	int play = (dir == PCMDIR_PLAY)? 1 : 0;
428 	int b16 = (fmt & AFMT_16BIT)? 1 : 0;
429 	int stereo = (fmt & AFMT_STEREO)? 1 : 0;
430 	int unsign = (fmt == AFMT_U8 || fmt == AFMT_U16_LE || fmt == AFMT_U16_BE)? 1 : 0;
431 	u_int8_t spdval, fmtval;
432 
433 	DEB(kprintf("ess_setupch\n"));
434 	spdval = (sc->newspeed)? ess_calcspeed9(&spd) : ess_calcspeed8(&spd);
435 
436 	sc->simplex_dir = play ? PCMDIR_PLAY : PCMDIR_REC ;
437 
438 	if (ch == 1) {
439 		KASSERT((dir == PCMDIR_PLAY) || (dir == PCMDIR_REC), ("ess_setupch: dir1 bad"));
440 		len = -len;
441 		/* transfer length low */
442 		ess_write(sc, 0xa4, len & 0x00ff);
443 		/* transfer length high */
444 		ess_write(sc, 0xa5, (len & 0xff00) >> 8);
445 		/* autoinit, dma dir */
446 		ess_write(sc, 0xb8, 0x04 | (play? 0x00 : 0x0a));
447 		/* mono/stereo */
448 		ess_write(sc, 0xa8, (ess_read(sc, 0xa8) & ~0x03) | (stereo? 0x01 : 0x02));
449 		/* demand mode, 4 bytes/xfer */
450 		ess_write(sc, 0xb9, 0x02);
451 		/* sample rate */
452         	ess_write(sc, 0xa1, spdval);
453 		/* filter cutoff */
454 		ess_write(sc, 0xa2, ess_calcfilter(spd));
455 		/* setup dac/adc */
456 		/*
457 		if (play)
458 			ess_write(sc, 0xb6, unsign? 0x80 : 0x00);
459 		*/
460 		/* mono, b16: signed, load signal */
461 		/*
462 		ess_write(sc, 0xb7, 0x51 | (unsign? 0x00 : 0x20));
463 		*/
464 		/* setup fifo */
465 		ess_write(sc, 0xb7, 0x91 | (unsign? 0x00 : 0x20) |
466 					   (b16? 0x04 : 0x00) |
467 					   (stereo? 0x08 : 0x40));
468 		/* irq control */
469 		ess_write(sc, 0xb1, (ess_read(sc, 0xb1) & 0x0f) | 0x50);
470 		/* drq control */
471 		ess_write(sc, 0xb2, (ess_read(sc, 0xb2) & 0x0f) | 0x50);
472 	} else if (ch == 2) {
473 		KASSERT(dir == PCMDIR_PLAY, ("ess_setupch: dir2 bad"));
474 		len >>= 1;
475 		len = -len;
476 		/* transfer length low */
477 		ess_setmixer(sc, 0x74, len & 0x00ff);
478 		/* transfer length high */
479 		ess_setmixer(sc, 0x76, (len & 0xff00) >> 8);
480 		/* autoinit, 4 bytes/req */
481 		ess_setmixer(sc, 0x78, 0x10);
482 		fmtval = b16 | (stereo << 1) | ((!unsign) << 2);
483 		/* enable irq, set format */
484 		ess_setmixer(sc, 0x7a, 0x40 | fmtval);
485 		if (sc->newspeed) {
486 			/* sample rate */
487 			ess_setmixer(sc, 0x70, spdval);
488 			/* filter cutoff */
489 			ess_setmixer(sc, 0x72, ess_calcfilter(spd));
490 		}
491 
492 	}
493 	return 0;
494 }
495 static int
496 ess_start(struct ess_chinfo *ch)
497 {
498 	struct ess_info *sc = ch->parent;
499 
500 	DEB(kprintf("ess_start\n"););
501 	ess_setupch(sc, ch->hwch, ch->dir, ch->spd, ch->fmt, ch->blksz);
502 	ch->stopping = 0;
503 	if (ch->hwch == 1) {
504 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) | 0x01);
505 		if (ch->dir == PCMDIR_PLAY) {
506 #if 0
507 			DELAY(100000); /* 100 ms */
508 #endif
509 			ess_cmd(sc, 0xd1);
510 		}
511 	} else
512 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) | 0x03);
513 	return 0;
514 }
515 
516 static int
517 ess_stop(struct ess_chinfo *ch)
518 {
519 	struct ess_info *sc = ch->parent;
520 
521 	DEB(kprintf("ess_stop\n"));
522 	ch->stopping = 1;
523 	if (ch->hwch == 1)
524 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x04);
525 	else
526 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x10);
527 	DEB(kprintf("done with stop\n"));
528 	return 0;
529 }
530 
531 /* -------------------------------------------------------------------- */
532 /* channel interface for ESS18xx */
533 static void *
534 esschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
535 {
536 	struct ess_info *sc = devinfo;
537 	struct ess_chinfo *ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
538 
539 	DEB(kprintf("esschan_init\n"));
540 	ch->parent = sc;
541 	ch->channel = c;
542 	ch->buffer = b;
543 	ch->dir = dir;
544 	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, sc->bufsz) != 0)
545 		return NULL;
546 	ch->hwch = 1;
547 	if ((dir == PCMDIR_PLAY) && (sc->duplex))
548 		ch->hwch = 2;
549 	return ch;
550 }
551 
552 static int
553 esschan_setformat(kobj_t obj, void *data, u_int32_t format)
554 {
555 	struct ess_chinfo *ch = data;
556 
557 	ch->fmt = format;
558 	return 0;
559 }
560 
561 static int
562 esschan_setspeed(kobj_t obj, void *data, u_int32_t speed)
563 {
564 	struct ess_chinfo *ch = data;
565 	struct ess_info *sc = ch->parent;
566 
567 	ch->spd = speed;
568 	if (sc->newspeed)
569 		ess_calcspeed9(&ch->spd);
570 	else
571 		ess_calcspeed8(&ch->spd);
572 	return ch->spd;
573 }
574 
575 static int
576 esschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
577 {
578 	struct ess_chinfo *ch = data;
579 
580 	ch->blksz = blocksize;
581 	return ch->blksz;
582 }
583 
584 static int
585 esschan_trigger(kobj_t obj, void *data, int go)
586 {
587 	struct ess_chinfo *ch = data;
588 	struct ess_info *sc = ch->parent;
589 
590 	DEB(kprintf("esschan_trigger: %d\n",go));
591 	if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
592 		return 0;
593 
594 	ess_lock(sc);
595 	switch (go) {
596 	case PCMTRIG_START:
597 		ess_dmasetup(sc, ch->hwch, sndbuf_getbufaddr(ch->buffer), sndbuf_getsize(ch->buffer), ch->dir);
598 		ess_dmatrigger(sc, ch->hwch, 1);
599 		ess_start(ch);
600 		break;
601 
602 	case PCMTRIG_STOP:
603 	case PCMTRIG_ABORT:
604 	default:
605 		ess_stop(ch);
606 		break;
607 	}
608 	ess_unlock(sc);
609 	return 0;
610 }
611 
612 static int
613 esschan_getptr(kobj_t obj, void *data)
614 {
615 	struct ess_chinfo *ch = data;
616 	struct ess_info *sc = ch->parent;
617 	int ret;
618 
619 	ess_lock(sc);
620 	ret = ess_dmapos(sc, ch->hwch);
621 	ess_unlock(sc);
622 	return ret;
623 }
624 
625 static struct pcmchan_caps *
626 esschan_getcaps(kobj_t obj, void *data)
627 {
628 	struct ess_chinfo *ch = data;
629 
630 	return (ch->dir == PCMDIR_PLAY)? &ess_playcaps : &ess_reccaps;
631 }
632 
633 static kobj_method_t esschan_methods[] = {
634     	KOBJMETHOD(channel_init,		esschan_init),
635     	KOBJMETHOD(channel_setformat,		esschan_setformat),
636     	KOBJMETHOD(channel_setspeed,		esschan_setspeed),
637     	KOBJMETHOD(channel_setblocksize,	esschan_setblocksize),
638     	KOBJMETHOD(channel_trigger,		esschan_trigger),
639     	KOBJMETHOD(channel_getptr,		esschan_getptr),
640     	KOBJMETHOD(channel_getcaps,		esschan_getcaps),
641 	{ 0, 0 }
642 };
643 CHANNEL_DECLARE(esschan);
644 
645 /************************************************************/
646 
647 static int
648 essmix_init(struct snd_mixer *m)
649 {
650     	struct ess_info *sc = mix_getdevinfo(m);
651 
652 	mix_setrecdevs(m, SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE |
653 			  SOUND_MASK_IMIX);
654 
655 	mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
656 		       SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME |
657 		       SOUND_MASK_LINE1);
658 
659 	ess_setmixer(sc, 0, 0); /* reset */
660 
661 	return 0;
662 }
663 
664 static int
665 essmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
666 {
667     	struct ess_info *sc = mix_getdevinfo(m);
668     	int preg = 0, rreg = 0, l, r;
669 
670 	l = (left * 15) / 100;
671 	r = (right * 15) / 100;
672 	switch (dev) {
673 	case SOUND_MIXER_SYNTH:
674 		preg = 0x36;
675 		rreg = 0x6b;
676 		break;
677 
678 	case SOUND_MIXER_PCM:
679 		preg = 0x14;
680 		rreg = 0x7c;
681 		break;
682 
683 	case SOUND_MIXER_LINE:
684 		preg = 0x3e;
685 		rreg = 0x6e;
686 		break;
687 
688 	case SOUND_MIXER_MIC:
689 		preg = 0x1a;
690 		rreg = 0x68;
691 		break;
692 
693 	case SOUND_MIXER_LINE1:
694 		preg = 0x3a;
695 		rreg = 0x6c;
696 		break;
697 
698 	case SOUND_MIXER_CD:
699 		preg = 0x38;
700 		rreg = 0x6a;
701 		break;
702 
703 	case SOUND_MIXER_VOLUME:
704 		l = left? (left * 63) / 100 : 64;
705 		r = right? (right * 63) / 100 : 64;
706 		ess_setmixer(sc, 0x60, l);
707 		ess_setmixer(sc, 0x62, r);
708 		left = (l == 64)? 0 : (l * 100) / 63;
709 		right = (r == 64)? 0 : (r * 100) / 63;
710     		return left | (right << 8);
711 	}
712 
713 	if (preg)
714 		ess_setmixer(sc, preg, (l << 4) | r);
715 	if (rreg)
716 		ess_setmixer(sc, rreg, (l << 4) | r);
717 
718 	left = (l * 100) / 15;
719 	right = (r * 100) / 15;
720 
721     	return left | (right << 8);
722 }
723 
724 static int
725 essmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
726 {
727     	struct ess_info *sc = mix_getdevinfo(m);
728     	u_char recdev;
729 
730     	switch (src) {
731 	case SOUND_MASK_CD:
732 		recdev = 0x02;
733 		break;
734 
735 	case SOUND_MASK_LINE:
736 		recdev = 0x06;
737 		break;
738 
739 	case SOUND_MASK_IMIX:
740 		recdev = 0x05;
741 		break;
742 
743 	case SOUND_MASK_MIC:
744 	default:
745 		recdev = 0x00;
746 		src = SOUND_MASK_MIC;
747 		break;
748 	}
749 
750 	ess_setmixer(sc, 0x1c, recdev);
751 
752 	return src;
753 }
754 
755 static kobj_method_t solomixer_methods[] = {
756     	KOBJMETHOD(mixer_init,		essmix_init),
757     	KOBJMETHOD(mixer_set,		essmix_set),
758     	KOBJMETHOD(mixer_setrecsrc,	essmix_setrecsrc),
759 	{ 0, 0 }
760 };
761 MIXER_DECLARE(solomixer);
762 
763 /************************************************************/
764 
765 static int
766 ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir)
767 {
768 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
769 	sc->dmasz[ch - 1] = cnt;
770 	if (ch == 1) {
771 		port_wr(sc->vc, 0x8, 0xc4, 1); /* command */
772 		port_wr(sc->vc, 0xd, 0xff, 1); /* reset */
773 		port_wr(sc->vc, 0xf, 0x01, 1); /* mask */
774 		port_wr(sc->vc, 0xb, dir == PCMDIR_PLAY? 0x58 : 0x54, 1); /* mode */
775 		port_wr(sc->vc, 0x0, base, 4);
776 		port_wr(sc->vc, 0x4, cnt - 1, 2);
777 
778 	} else if (ch == 2) {
779 		port_wr(sc->io, 0x6, 0x08, 1); /* autoinit */
780 		port_wr(sc->io, 0x0, base, 4);
781 		port_wr(sc->io, 0x4, cnt, 2);
782 	}
783 	return 0;
784 }
785 
786 static int
787 ess_dmapos(struct ess_info *sc, int ch)
788 {
789 	int p = 0, i = 0, j = 0;
790 
791 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
792 	if (ch == 1) {
793 
794 /*
795  * During recording, this register is known to give back
796  * garbage if it's not quiescent while being read. That's
797  * why we spl, stop the DMA, and try over and over until
798  * adjacent reads are "close", in the right order and not
799  * bigger than is otherwise possible.
800  */
801 		ess_dmatrigger(sc, ch, 0);
802 		DELAY(20);
803 		do {
804 			DELAY(10);
805 			if (j > 1)
806 				kprintf("DMA count reg bogus: %04x & %04x\n",
807 					i, p);
808 			i = port_rd(sc->vc, 0x4, 2) + 1;
809 			p = port_rd(sc->vc, 0x4, 2) + 1;
810 		} while ((p > sc->dmasz[ch - 1] || i < p || (p - i) > 0x8) && j++ < 1000);
811 		ess_dmatrigger(sc, ch, 1);
812 	}
813 	else if (ch == 2)
814 		p = port_rd(sc->io, 0x4, 2);
815 	return sc->dmasz[ch - 1] - p;
816 }
817 
818 static int
819 ess_dmatrigger(struct ess_info *sc, int ch, int go)
820 {
821 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
822 	if (ch == 1)
823 		port_wr(sc->vc, 0xf, go? 0x00 : 0x01, 1); /* mask */
824 	else if (ch == 2)
825 		port_wr(sc->io, 0x6, 0x08 | (go? 0x02 : 0x00), 1); /* autoinit */
826 	return 0;
827 }
828 
829 static void
830 ess_release_resources(struct ess_info *sc, device_t dev)
831 {
832     	if (sc->irq) {
833 		if (sc->ih)
834 			bus_teardown_intr(dev, sc->irq, sc->ih);
835 		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
836 		sc->irq = 0;
837     	}
838     	if (sc->io) {
839 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->io);
840 		sc->io = 0;
841     	}
842 
843     	if (sc->sb) {
844 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(1), sc->sb);
845 		sc->sb = 0;
846     	}
847 
848     	if (sc->vc) {
849 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(2), sc->vc);
850 		sc->vc = 0;
851     	}
852 
853     	if (sc->mpu) {
854 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(3), sc->mpu);
855 		sc->mpu = 0;
856     	}
857 
858     	if (sc->gp) {
859 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(4), sc->gp);
860 		sc->gp = 0;
861     	}
862 
863 	if (sc->parent_dmat) {
864 		bus_dma_tag_destroy(sc->parent_dmat);
865 		sc->parent_dmat = 0;
866     	}
867 
868 #if ESS18XX_MPSAFE == 1
869 	if (sc->lock) {
870 		snd_mtxfree(sc->lock);
871 		sc->lock = NULL;
872 	}
873 #endif
874 
875     	kfree(sc, M_DEVBUF);
876 }
877 
878 static int
879 ess_alloc_resources(struct ess_info *sc, device_t dev)
880 {
881 	int rid;
882 
883 	rid = PCIR_BAR(0);
884     	sc->io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
885 
886 	rid = PCIR_BAR(1);
887     	sc->sb = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
888 
889 	rid = PCIR_BAR(2);
890     	sc->vc = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
891 
892 	rid = PCIR_BAR(3);
893     	sc->mpu = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
894 
895 	rid = PCIR_BAR(4);
896     	sc->gp = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
897 
898 	rid = 0;
899 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
900 		RF_ACTIVE | RF_SHAREABLE);
901 
902 #if ESS18XX_MPSAFE == 1
903 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc");
904 
905 	return (sc->irq && sc->io && sc->sb && sc->vc &&
906 				sc->mpu && sc->gp && sc->lock)? 0 : ENXIO;
907 #else
908 	return (sc->irq && sc->io && sc->sb && sc->vc && sc->mpu && sc->gp)? 0 : ENXIO;
909 #endif
910 }
911 
912 static int
913 ess_probe(device_t dev)
914 {
915 	char *s = NULL;
916 	u_int32_t subdev;
917 
918 	subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev);
919 	switch (pci_get_devid(dev)) {
920 	case 0x1969125d:
921 		if (subdev == 0x8888125d)
922 			s = "ESS Solo-1E";
923 		else if (subdev == 0x1818125d)
924 			s = "ESS Solo-1";
925 		else
926 			s = "ESS Solo-1 (unknown vendor)";
927 		break;
928 	}
929 
930 	if (s)
931 		device_set_desc(dev, s);
932 	return s ? BUS_PROBE_DEFAULT : ENXIO;
933 }
934 
935 #define ESS_PCI_LEGACYCONTROL       0x40
936 #define ESS_PCI_CONFIG              0x50
937 #define ESS_PCI_DDMACONTROL      	0x60
938 
939 static int
940 ess_suspend(device_t dev)
941 {
942   return 0;
943 }
944 
945 static int
946 ess_resume(device_t dev)
947 {
948 	uint16_t ddma;
949 	uint32_t data;
950 	struct ess_info *sc = pcm_getdevinfo(dev);
951 
952 	ess_lock(sc);
953 	data = pci_read_config(dev, PCIR_COMMAND, 2);
954 	data |= PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN;
955 	pci_write_config(dev, PCIR_COMMAND, data, 2);
956 	data = pci_read_config(dev, PCIR_COMMAND, 2);
957 
958 	ddma = rman_get_start(sc->vc) | 1;
959 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
960 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
961 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
962 
963     	if (ess_reset_dsp(sc)) {
964 		ess_unlock(sc);
965 		goto no;
966 	}
967 	ess_unlock(sc);
968     	if (mixer_reinit(dev))
969 		goto no;
970 	ess_lock(sc);
971 	if (sc->newspeed)
972 		ess_setmixer(sc, 0x71, 0x2a);
973 
974 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
975 	ess_unlock(sc);
976 
977 	return 0;
978  no:
979 	return EIO;
980 }
981 
982 static int
983 ess_attach(device_t dev)
984 {
985     	struct ess_info *sc;
986     	char status[SND_STATUSLEN];
987 	u_int16_t ddma;
988 	u_int32_t data;
989 
990 	sc = (struct ess_info *)kmalloc(sizeof *sc, M_DEVBUF, M_NOWAIT | M_ZERO);
991     	if (!sc)
992 		return ENXIO;
993 
994 	data = pci_read_config(dev, PCIR_COMMAND, 2);
995 	data |= PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN;
996 	pci_write_config(dev, PCIR_COMMAND, data, 2);
997 	data = pci_read_config(dev, PCIR_COMMAND, 2);
998 
999     	if (ess_alloc_resources(sc, dev))
1000 		goto no;
1001 
1002 	sc->bufsz = pcm_getbuffersize(dev, 4096, SOLO_DEFAULT_BUFSZ, 65536);
1003 
1004 	ddma = rman_get_start(sc->vc) | 1;
1005 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
1006 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
1007 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
1008 
1009 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
1010 #ifdef ESS18XX_DUPLEX
1011 	sc->duplex = 1;
1012 #else
1013 	sc->duplex = 0;
1014 #endif
1015 
1016 #ifdef ESS18XX_NEWSPEED
1017 	sc->newspeed = 1;
1018 #else
1019 	sc->newspeed = 0;
1020 #endif
1021 	if (snd_setup_intr(dev, sc->irq,
1022 #if ESS18XX_MPSAFE == 1
1023 			INTR_MPSAFE
1024 #else
1025 			0
1026 #endif
1027 			, ess_intr, sc, &sc->ih)) {
1028 		device_printf(dev, "unable to map interrupt\n");
1029 		goto no;
1030 	}
1031 
1032     	if (!sc->duplex)
1033 		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
1034 
1035 #if 0
1036     	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/65536, /*boundary*/0,
1037 #endif
1038     	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
1039 			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
1040 			/*highaddr*/BUS_SPACE_MAXADDR,
1041 			/*filter*/NULL, /*filterarg*/NULL,
1042 			/*maxsize*/sc->bufsz, /*nsegments*/1,
1043 			/*maxsegz*/0x3ffff,
1044 			/*flags*/0,
1045 			&sc->parent_dmat) != 0) {
1046 		device_printf(dev, "unable to create dma tag\n");
1047 		goto no;
1048     	}
1049 
1050     	if (ess_reset_dsp(sc))
1051 		goto no;
1052 
1053 	if (sc->newspeed)
1054 		ess_setmixer(sc, 0x71, 0x2a);
1055 
1056     	if (mixer_init(dev, &solomixer_class, sc))
1057 		goto no;
1058 
1059     	ksnprintf(status, SND_STATUSLEN, "at io 0x%lx,0x%lx,0x%lx irq %ld %s",
1060     	     	rman_get_start(sc->io), rman_get_start(sc->sb), rman_get_start(sc->vc),
1061 		rman_get_start(sc->irq),PCM_KLDSTRING(snd_solo));
1062 
1063     	if (pcm_register(dev, sc, 1, 1))
1064 		goto no;
1065       	pcm_addchan(dev, PCMDIR_REC, &esschan_class, sc);
1066 	pcm_addchan(dev, PCMDIR_PLAY, &esschan_class, sc);
1067 	pcm_setstatus(dev, status);
1068 
1069     	return 0;
1070 
1071 no:
1072     	ess_release_resources(sc, dev);
1073     	return ENXIO;
1074 }
1075 
1076 static int
1077 ess_detach(device_t dev)
1078 {
1079 	int r;
1080 	struct ess_info *sc;
1081 
1082 	r = pcm_unregister(dev);
1083 	if (r)
1084 		return r;
1085 
1086 	sc = pcm_getdevinfo(dev);
1087     	ess_release_resources(sc, dev);
1088 	return 0;
1089 }
1090 
1091 static device_method_t ess_methods[] = {
1092 	/* Device interface */
1093 	DEVMETHOD(device_probe,		ess_probe),
1094 	DEVMETHOD(device_attach,	ess_attach),
1095 	DEVMETHOD(device_detach,	ess_detach),
1096 	DEVMETHOD(device_resume,	ess_resume),
1097 	DEVMETHOD(device_suspend,	ess_suspend),
1098 
1099 	{ 0, 0 }
1100 };
1101 
1102 static driver_t ess_driver = {
1103 	"pcm",
1104 	ess_methods,
1105 	PCM_SOFTC_SIZE,
1106 };
1107 
1108 DRIVER_MODULE(snd_solo, pci, ess_driver, pcm_devclass, 0, 0);
1109 MODULE_DEPEND(snd_solo, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1110 MODULE_VERSION(snd_solo, 1);
1111 
1112 
1113 
1114