xref: /freebsd/sys/dev/sound/pci/solo.c (revision a979394afeb5c20fc58c5f5b005d51eb8f92f666)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #ifdef HAVE_KERNEL_OPTION_HEADERS
29 #include "opt_snd.h"
30 #endif
31 
32 #include <dev/sound/pcm/sound.h>
33 
34 #include <dev/pci/pcireg.h>
35 #include <dev/pci/pcivar.h>
36 
37 #include  <dev/sound/isa/sb.h>
38 
39 #include "mixer_if.h"
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 static u_int32_t ess_playfmt[] = {
51 	SND_FORMAT(AFMT_U8, 1, 0),
52 	SND_FORMAT(AFMT_U8, 2, 0),
53 	SND_FORMAT(AFMT_S8, 1, 0),
54 	SND_FORMAT(AFMT_S8, 2, 0),
55 	SND_FORMAT(AFMT_S16_LE, 1, 0),
56 	SND_FORMAT(AFMT_S16_LE, 2, 0),
57 	SND_FORMAT(AFMT_U16_LE, 1, 0),
58 	SND_FORMAT(AFMT_U16_LE, 2, 0),
59 	0
60 };
61 static struct pcmchan_caps ess_playcaps = {6000, 48000, ess_playfmt, 0};
62 
63 /*
64  * Recording output is byte-swapped
65  */
66 static u_int32_t ess_recfmt[] = {
67 	SND_FORMAT(AFMT_U8, 1, 0),
68 	SND_FORMAT(AFMT_U8, 2, 0),
69 	SND_FORMAT(AFMT_S8, 1, 0),
70 	SND_FORMAT(AFMT_S8, 2, 0),
71 	SND_FORMAT(AFMT_S16_BE, 1, 0),
72 	SND_FORMAT(AFMT_S16_BE, 2, 0),
73 	SND_FORMAT(AFMT_U16_BE, 1, 0),
74 	SND_FORMAT(AFMT_U16_BE, 2, 0),
75 	0
76 };
77 static struct pcmchan_caps ess_reccaps = {6000, 48000, ess_recfmt, 0};
78 
79 struct ess_info;
80 
81 struct ess_chinfo {
82 	struct ess_info *parent;
83 	struct pcm_channel *channel;
84 	struct snd_dbuf *buffer;
85 	int dir, hwch, stopping;
86 	u_int32_t fmt, spd, blksz;
87 };
88 
89 struct ess_info {
90     	struct resource *io, *sb, *vc, *mpu, *gp;	/* I/O address for the board */
91     	struct resource *irq;
92 	void		*ih;
93     	bus_dma_tag_t parent_dmat;
94 
95     	int simplex_dir, type, dmasz[2];
96 	unsigned int duplex:1, newspeed:1;
97 	unsigned int bufsz;
98 
99     	struct ess_chinfo pch, rch;
100 	struct mtx *lock;
101 };
102 
103 #define ess_lock(_ess) snd_mtxlock((_ess)->lock)
104 #define ess_unlock(_ess) snd_mtxunlock((_ess)->lock)
105 #define ess_lock_assert(_ess) snd_mtxassert((_ess)->lock)
106 
107 static int ess_rd(struct ess_info *sc, int reg);
108 static void ess_wr(struct ess_info *sc, int reg, u_int8_t val);
109 static int ess_dspready(struct ess_info *sc);
110 static int ess_cmd(struct ess_info *sc, u_char val);
111 static int ess_cmd1(struct ess_info *sc, u_char cmd, int val);
112 static int ess_get_byte(struct ess_info *sc);
113 static void ess_setmixer(struct ess_info *sc, u_int port, u_int value);
114 static int ess_getmixer(struct ess_info *sc, u_int port);
115 static int ess_reset_dsp(struct ess_info *sc);
116 
117 static int ess_write(struct ess_info *sc, u_char reg, int val);
118 static int ess_read(struct ess_info *sc, u_char reg);
119 
120 static void ess_intr(void *arg);
121 static int ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len);
122 static int ess_start(struct ess_chinfo *ch);
123 static int ess_stop(struct ess_chinfo *ch);
124 
125 static int ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir);
126 static int ess_dmapos(struct ess_info *sc, int ch);
127 static int ess_dmatrigger(struct ess_info *sc, int ch, int go);
128 
129 /*
130  * Common code for the midi and pcm functions
131  *
132  * ess_cmd write a single byte to the CMD port.
133  * ess_cmd1 write a CMD + 1 byte arg
134  * ess_cmd2 write a CMD + 2 byte arg
135  * ess_get_byte returns a single byte from the DSP data port
136  *
137  * ess_write is actually ess_cmd1
138  * ess_read access ext. regs via ess_cmd(0xc0, reg) followed by ess_get_byte
139  */
140 
141 static int
142 port_rd(struct resource *port, int regno, int size)
143 {
144 	bus_space_tag_t st = rman_get_bustag(port);
145 	bus_space_handle_t sh = rman_get_bushandle(port);
146 
147 	switch (size) {
148 	case 1:
149 		return bus_space_read_1(st, sh, regno);
150 	case 2:
151 		return bus_space_read_2(st, sh, regno);
152 	case 4:
153 		return bus_space_read_4(st, sh, regno);
154 	default:
155 		return 0xffffffff;
156 	}
157 }
158 
159 static void
160 port_wr(struct resource *port, int regno, u_int32_t data, int size)
161 {
162 	bus_space_tag_t st = rman_get_bustag(port);
163 	bus_space_handle_t sh = rman_get_bushandle(port);
164 
165 	switch (size) {
166 	case 1:
167 		bus_space_write_1(st, sh, regno, data);
168 		break;
169 	case 2:
170 		bus_space_write_2(st, sh, regno, data);
171 		break;
172 	case 4:
173 		bus_space_write_4(st, sh, regno, data);
174 		break;
175 	}
176 }
177 
178 static int
179 ess_rd(struct ess_info *sc, int reg)
180 {
181 	return port_rd(sc->sb, reg, 1);
182 }
183 
184 static void
185 ess_wr(struct ess_info *sc, int reg, u_int8_t val)
186 {
187 	port_wr(sc->sb, reg, val, 1);
188 }
189 
190 static int
191 ess_dspready(struct ess_info *sc)
192 {
193 	return ((ess_rd(sc, SBDSP_STATUS) & 0x80) == 0);
194 }
195 
196 static int
197 ess_dspwr(struct ess_info *sc, u_char val)
198 {
199     	int  i;
200 
201     	for (i = 0; i < 1000; i++) {
202 		if (ess_dspready(sc)) {
203 	    		ess_wr(sc, SBDSP_CMD, val);
204 	    		return 1;
205 		}
206 		if (i > 10) DELAY((i > 100)? 1000 : 10);
207     	}
208     	printf("ess_dspwr(0x%02x) timed out.\n", val);
209     	return 0;
210 }
211 
212 static int
213 ess_cmd(struct ess_info *sc, u_char val)
214 {
215 	DEB(printf("ess_cmd: %x\n", val));
216     	return ess_dspwr(sc, val);
217 }
218 
219 static int
220 ess_cmd1(struct ess_info *sc, u_char cmd, int val)
221 {
222     	DEB(printf("ess_cmd1: %x, %x\n", cmd, val));
223     	if (ess_dspwr(sc, cmd)) {
224 		return ess_dspwr(sc, val & 0xff);
225     	} else return 0;
226 }
227 
228 static void
229 ess_setmixer(struct ess_info *sc, u_int port, u_int value)
230 {
231 	DEB(printf("ess_setmixer: reg=%x, val=%x\n", port, value);)
232     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
233     	DELAY(10);
234     	ess_wr(sc, SB_MIX_DATA, (u_char) (value & 0xff));
235     	DELAY(10);
236 }
237 
238 static int
239 ess_getmixer(struct ess_info *sc, u_int port)
240 {
241     	int val;
242 
243     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
244     	DELAY(10);
245     	val = ess_rd(sc, SB_MIX_DATA);
246     	DELAY(10);
247 
248     	return val;
249 }
250 
251 static int
252 ess_get_byte(struct ess_info *sc)
253 {
254     	int i;
255 
256     	for (i = 1000; i > 0; i--) {
257 		if (ess_rd(sc, 0xc) & 0x40)
258 			return ess_rd(sc, DSP_READ);
259 		else
260 			DELAY(20);
261     	}
262     	return -1;
263 }
264 
265 static int
266 ess_write(struct ess_info *sc, u_char reg, int val)
267 {
268     	return ess_cmd1(sc, reg, val);
269 }
270 
271 static int
272 ess_read(struct ess_info *sc, u_char reg)
273 {
274     	return (ess_cmd(sc, 0xc0) && ess_cmd(sc, reg))? ess_get_byte(sc) : -1;
275 }
276 
277 static int
278 ess_reset_dsp(struct ess_info *sc)
279 {
280 	DEB(printf("ess_reset_dsp\n"));
281     	ess_wr(sc, SBDSP_RST, 3);
282     	DELAY(100);
283     	ess_wr(sc, SBDSP_RST, 0);
284     	if (ess_get_byte(sc) != 0xAA) {
285         	DEB(printf("ess_reset_dsp failed\n"));
286 /*
287 			   rman_get_start(d->io_base)));
288 */
289 		return ENXIO;	/* Sorry */
290     	}
291     	ess_cmd(sc, 0xc6);
292     	return 0;
293 }
294 
295 static void
296 ess_intr(void *arg)
297 {
298     	struct ess_info *sc = (struct ess_info *)arg;
299 	int src, pirq = 0, rirq = 0;
300 
301 	ess_lock(sc);
302 	src = 0;
303 	if (ess_getmixer(sc, 0x7a) & 0x80)
304 		src |= 2;
305 	if (ess_rd(sc, 0x0c) & 0x01)
306 		src |= 1;
307 
308 	if (src == 0) {
309 		ess_unlock(sc);
310 		return;
311 	}
312 
313 	if (sc->duplex) {
314 		pirq = (src & sc->pch.hwch)? 1 : 0;
315 		rirq = (src & sc->rch.hwch)? 1 : 0;
316 	} else {
317 		if (sc->simplex_dir == PCMDIR_PLAY)
318 			pirq = 1;
319 		if (sc->simplex_dir == PCMDIR_REC)
320 			rirq = 1;
321 		if (!pirq && !rirq)
322 			printf("solo: IRQ neither playback nor rec!\n");
323 	}
324 
325 	DEB(printf("ess_intr: pirq:%d rirq:%d\n",pirq,rirq));
326 
327 	if (pirq) {
328 		if (sc->pch.stopping) {
329 			ess_dmatrigger(sc, sc->pch.hwch, 0);
330 			sc->pch.stopping = 0;
331 			if (sc->pch.hwch == 1)
332 				ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
333 			else
334 				ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x03);
335 		}
336 		ess_unlock(sc);
337 		chn_intr(sc->pch.channel);
338 		ess_lock(sc);
339 	}
340 
341 	if (rirq) {
342 		if (sc->rch.stopping) {
343 			ess_dmatrigger(sc, sc->rch.hwch, 0);
344 			sc->rch.stopping = 0;
345 			/* XXX: will this stop audio2? */
346 			ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
347 		}
348 		ess_unlock(sc);
349 		chn_intr(sc->rch.channel);
350 		ess_lock(sc);
351 	}
352 
353 	if (src & 2)
354 		ess_setmixer(sc, 0x7a, ess_getmixer(sc, 0x7a) & ~0x80);
355 	if (src & 1)
356     		ess_rd(sc, DSP_DATA_AVAIL);
357 
358 	ess_unlock(sc);
359 }
360 
361 /* utility functions for ESS */
362 static u_int8_t
363 ess_calcspeed8(int *spd)
364 {
365 	int speed = *spd;
366 	u_int32_t t;
367 
368 	if (speed > 22000) {
369 		t = (795500 + speed / 2) / speed;
370 		speed = (795500 + t / 2) / t;
371 		t = (256 - t) | 0x80;
372 	} else {
373 		t = (397700 + speed / 2) / speed;
374 		speed = (397700 + t / 2) / t;
375 		t = 128 - t;
376 	}
377 	*spd = speed;
378 	return t & 0x000000ff;
379 }
380 
381 static u_int8_t
382 ess_calcspeed9(int *spd)
383 {
384 	int speed, s0, s1, use0;
385 	u_int8_t t0, t1;
386 
387 	/* rate = source / (256 - divisor) */
388 	/* divisor = 256 - (source / rate) */
389 	speed = *spd;
390 	t0 = 128 - (793800 / speed);
391 	s0 = 793800 / (128 - t0);
392 
393 	t1 = 128 - (768000 / speed);
394 	s1 = 768000 / (128 - t1);
395 	t1 |= 0x80;
396 
397 	use0 = (ABS(speed - s0) < ABS(speed - s1))? 1 : 0;
398 
399 	*spd = use0? s0 : s1;
400 	return use0? t0 : t1;
401 }
402 
403 static u_int8_t
404 ess_calcfilter(int spd)
405 {
406 	int cutoff;
407 
408 	/* cutoff = 7160000 / (256 - divisor) */
409 	/* divisor = 256 - (7160000 / cutoff) */
410 	cutoff = (spd * 9 * 82) / 20;
411 	return (256 - (7160000 / cutoff));
412 }
413 
414 static int
415 ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len)
416 {
417 	int play = (dir == PCMDIR_PLAY)? 1 : 0;
418 	int b16 = (fmt & AFMT_16BIT)? 1 : 0;
419 	int stereo = (AFMT_CHANNEL(fmt) > 1)? 1 : 0;
420 	int unsign = (!(fmt & AFMT_SIGNED))? 1 : 0;
421 	u_int8_t spdval, fmtval;
422 
423 	DEB(printf("ess_setupch\n"));
424 	spdval = (sc->newspeed)? ess_calcspeed9(&spd) : ess_calcspeed8(&spd);
425 
426 	sc->simplex_dir = play ? PCMDIR_PLAY : PCMDIR_REC ;
427 
428 	if (ch == 1) {
429 		KASSERT((dir == PCMDIR_PLAY) || (dir == PCMDIR_REC), ("ess_setupch: dir1 bad"));
430 		len = -len;
431 		/* transfer length low */
432 		ess_write(sc, 0xa4, len & 0x00ff);
433 		/* transfer length high */
434 		ess_write(sc, 0xa5, (len & 0xff00) >> 8);
435 		/* autoinit, dma dir */
436 		ess_write(sc, 0xb8, 0x04 | (play? 0x00 : 0x0a));
437 		/* mono/stereo */
438 		ess_write(sc, 0xa8, (ess_read(sc, 0xa8) & ~0x03) | (stereo? 0x01 : 0x02));
439 		/* demand mode, 4 bytes/xfer */
440 		ess_write(sc, 0xb9, 0x02);
441 		/* sample rate */
442         	ess_write(sc, 0xa1, spdval);
443 		/* filter cutoff */
444 		ess_write(sc, 0xa2, ess_calcfilter(spd));
445 		/* setup dac/adc */
446 		/*
447 		if (play)
448 			ess_write(sc, 0xb6, unsign? 0x80 : 0x00);
449 		*/
450 		/* mono, b16: signed, load signal */
451 		/*
452 		ess_write(sc, 0xb7, 0x51 | (unsign? 0x00 : 0x20));
453 		*/
454 		/* setup fifo */
455 		ess_write(sc, 0xb7, 0x91 | (unsign? 0x00 : 0x20) |
456 					   (b16? 0x04 : 0x00) |
457 					   (stereo? 0x08 : 0x40));
458 		/* irq control */
459 		ess_write(sc, 0xb1, (ess_read(sc, 0xb1) & 0x0f) | 0x50);
460 		/* drq control */
461 		ess_write(sc, 0xb2, (ess_read(sc, 0xb2) & 0x0f) | 0x50);
462 	} else if (ch == 2) {
463 		KASSERT(dir == PCMDIR_PLAY, ("ess_setupch: dir2 bad"));
464 		len >>= 1;
465 		len = -len;
466 		/* transfer length low */
467 		ess_setmixer(sc, 0x74, len & 0x00ff);
468 		/* transfer length high */
469 		ess_setmixer(sc, 0x76, (len & 0xff00) >> 8);
470 		/* autoinit, 4 bytes/req */
471 		ess_setmixer(sc, 0x78, 0x10);
472 		fmtval = b16 | (stereo << 1) | ((!unsign) << 2);
473 		/* enable irq, set format */
474 		ess_setmixer(sc, 0x7a, 0x40 | fmtval);
475 		if (sc->newspeed) {
476 			/* sample rate */
477 			ess_setmixer(sc, 0x70, spdval);
478 			/* filter cutoff */
479 			ess_setmixer(sc, 0x72, ess_calcfilter(spd));
480 		}
481 	}
482 	return 0;
483 }
484 static int
485 ess_start(struct ess_chinfo *ch)
486 {
487 	struct ess_info *sc = ch->parent;
488 
489 	DEB(printf("ess_start\n"););
490 	ess_setupch(sc, ch->hwch, ch->dir, ch->spd, ch->fmt, ch->blksz);
491 	ch->stopping = 0;
492 	if (ch->hwch == 1) {
493 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) | 0x01);
494 		if (ch->dir == PCMDIR_PLAY) {
495 #if 0
496 			DELAY(100000); /* 100 ms */
497 #endif
498 			ess_cmd(sc, 0xd1);
499 		}
500 	} else
501 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) | 0x03);
502 	return 0;
503 }
504 
505 static int
506 ess_stop(struct ess_chinfo *ch)
507 {
508 	struct ess_info *sc = ch->parent;
509 
510 	DEB(printf("ess_stop\n"));
511 	ch->stopping = 1;
512 	if (ch->hwch == 1)
513 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x04);
514 	else
515 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x10);
516 	DEB(printf("done with stop\n"));
517 	return 0;
518 }
519 
520 /* -------------------------------------------------------------------- */
521 /* channel interface for ESS18xx */
522 static void *
523 esschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
524 {
525 	struct ess_info *sc = devinfo;
526 	struct ess_chinfo *ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
527 
528 	DEB(printf("esschan_init\n"));
529 	ch->parent = sc;
530 	ch->channel = c;
531 	ch->buffer = b;
532 	ch->dir = dir;
533 	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsz) != 0)
534 		return NULL;
535 	ch->hwch = 1;
536 	if ((dir == PCMDIR_PLAY) && (sc->duplex))
537 		ch->hwch = 2;
538 	return ch;
539 }
540 
541 static int
542 esschan_setformat(kobj_t obj, void *data, u_int32_t format)
543 {
544 	struct ess_chinfo *ch = data;
545 
546 	ch->fmt = format;
547 	return 0;
548 }
549 
550 static u_int32_t
551 esschan_setspeed(kobj_t obj, void *data, u_int32_t speed)
552 {
553 	struct ess_chinfo *ch = data;
554 	struct ess_info *sc = ch->parent;
555 
556 	ch->spd = speed;
557 	if (sc->newspeed)
558 		ess_calcspeed9(&ch->spd);
559 	else
560 		ess_calcspeed8(&ch->spd);
561 	return ch->spd;
562 }
563 
564 static u_int32_t
565 esschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
566 {
567 	struct ess_chinfo *ch = data;
568 
569 	ch->blksz = blocksize;
570 	return ch->blksz;
571 }
572 
573 static int
574 esschan_trigger(kobj_t obj, void *data, int go)
575 {
576 	struct ess_chinfo *ch = data;
577 	struct ess_info *sc = ch->parent;
578 
579 	if (!PCMTRIG_COMMON(go))
580 		return 0;
581 
582 	DEB(printf("esschan_trigger: %d\n",go));
583 
584 	ess_lock(sc);
585 	switch (go) {
586 	case PCMTRIG_START:
587 		ess_dmasetup(sc, ch->hwch, sndbuf_getbufaddr(ch->buffer), sndbuf_getsize(ch->buffer), ch->dir);
588 		ess_dmatrigger(sc, ch->hwch, 1);
589 		ess_start(ch);
590 		break;
591 
592 	case PCMTRIG_STOP:
593 	case PCMTRIG_ABORT:
594 	default:
595 		ess_stop(ch);
596 		break;
597 	}
598 	ess_unlock(sc);
599 	return 0;
600 }
601 
602 static u_int32_t
603 esschan_getptr(kobj_t obj, void *data)
604 {
605 	struct ess_chinfo *ch = data;
606 	struct ess_info *sc = ch->parent;
607 	u_int32_t ret;
608 
609 	ess_lock(sc);
610 	ret = ess_dmapos(sc, ch->hwch);
611 	ess_unlock(sc);
612 	return ret;
613 }
614 
615 static struct pcmchan_caps *
616 esschan_getcaps(kobj_t obj, void *data)
617 {
618 	struct ess_chinfo *ch = data;
619 
620 	return (ch->dir == PCMDIR_PLAY)? &ess_playcaps : &ess_reccaps;
621 }
622 
623 static kobj_method_t esschan_methods[] = {
624     	KOBJMETHOD(channel_init,		esschan_init),
625     	KOBJMETHOD(channel_setformat,		esschan_setformat),
626     	KOBJMETHOD(channel_setspeed,		esschan_setspeed),
627     	KOBJMETHOD(channel_setblocksize,	esschan_setblocksize),
628     	KOBJMETHOD(channel_trigger,		esschan_trigger),
629     	KOBJMETHOD(channel_getptr,		esschan_getptr),
630     	KOBJMETHOD(channel_getcaps,		esschan_getcaps),
631 	KOBJMETHOD_END
632 };
633 CHANNEL_DECLARE(esschan);
634 
635 /************************************************************/
636 
637 static int
638 essmix_init(struct snd_mixer *m)
639 {
640     	struct ess_info *sc = mix_getdevinfo(m);
641 
642 	mix_setrecdevs(m, SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE |
643 			  SOUND_MASK_IMIX);
644 
645 	mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
646 		       SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME |
647 		       SOUND_MASK_LINE1);
648 
649 	ess_setmixer(sc, 0, 0); /* reset */
650 
651 	return 0;
652 }
653 
654 static int
655 essmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
656 {
657     	struct ess_info *sc = mix_getdevinfo(m);
658     	int preg = 0, rreg = 0, l, r;
659 
660 	l = (left * 15) / 100;
661 	r = (right * 15) / 100;
662 	switch (dev) {
663 	case SOUND_MIXER_SYNTH:
664 		preg = 0x36;
665 		rreg = 0x6b;
666 		break;
667 
668 	case SOUND_MIXER_PCM:
669 		preg = 0x14;
670 		rreg = 0x7c;
671 		break;
672 
673 	case SOUND_MIXER_LINE:
674 		preg = 0x3e;
675 		rreg = 0x6e;
676 		break;
677 
678 	case SOUND_MIXER_MIC:
679 		preg = 0x1a;
680 		rreg = 0x68;
681 		break;
682 
683 	case SOUND_MIXER_LINE1:
684 		preg = 0x3a;
685 		rreg = 0x6c;
686 		break;
687 
688 	case SOUND_MIXER_CD:
689 		preg = 0x38;
690 		rreg = 0x6a;
691 		break;
692 
693 	case SOUND_MIXER_VOLUME:
694 		l = left? (left * 63) / 100 : 64;
695 		r = right? (right * 63) / 100 : 64;
696 		ess_setmixer(sc, 0x60, l);
697 		ess_setmixer(sc, 0x62, r);
698 		left = (l == 64)? 0 : (l * 100) / 63;
699 		right = (r == 64)? 0 : (r * 100) / 63;
700     		return left | (right << 8);
701 	}
702 
703 	if (preg)
704 		ess_setmixer(sc, preg, (l << 4) | r);
705 	if (rreg)
706 		ess_setmixer(sc, rreg, (l << 4) | r);
707 
708 	left = (l * 100) / 15;
709 	right = (r * 100) / 15;
710 
711     	return left | (right << 8);
712 }
713 
714 static u_int32_t
715 essmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
716 {
717     	struct ess_info *sc = mix_getdevinfo(m);
718     	u_char recdev;
719 
720     	switch (src) {
721 	case SOUND_MASK_CD:
722 		recdev = 0x02;
723 		break;
724 
725 	case SOUND_MASK_LINE:
726 		recdev = 0x06;
727 		break;
728 
729 	case SOUND_MASK_IMIX:
730 		recdev = 0x05;
731 		break;
732 
733 	case SOUND_MASK_MIC:
734 	default:
735 		recdev = 0x00;
736 		src = SOUND_MASK_MIC;
737 		break;
738 	}
739 
740 	ess_setmixer(sc, 0x1c, recdev);
741 
742 	return src;
743 }
744 
745 static kobj_method_t solomixer_methods[] = {
746     	KOBJMETHOD(mixer_init,		essmix_init),
747     	KOBJMETHOD(mixer_set,		essmix_set),
748     	KOBJMETHOD(mixer_setrecsrc,	essmix_setrecsrc),
749 	KOBJMETHOD_END
750 };
751 MIXER_DECLARE(solomixer);
752 
753 /************************************************************/
754 
755 static int
756 ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir)
757 {
758 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
759 	sc->dmasz[ch - 1] = cnt;
760 	if (ch == 1) {
761 		port_wr(sc->vc, 0x8, 0xc4, 1); /* command */
762 		port_wr(sc->vc, 0xd, 0xff, 1); /* reset */
763 		port_wr(sc->vc, 0xf, 0x01, 1); /* mask */
764 		port_wr(sc->vc, 0xb, dir == PCMDIR_PLAY? 0x58 : 0x54, 1); /* mode */
765 		port_wr(sc->vc, 0x0, base, 4);
766 		port_wr(sc->vc, 0x4, cnt - 1, 2);
767 
768 	} else if (ch == 2) {
769 		port_wr(sc->io, 0x6, 0x08, 1); /* autoinit */
770 		port_wr(sc->io, 0x0, base, 4);
771 		port_wr(sc->io, 0x4, cnt, 2);
772 	}
773 	return 0;
774 }
775 
776 static int
777 ess_dmapos(struct ess_info *sc, int ch)
778 {
779 	int p = 0, i = 0, j = 0;
780 
781 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
782 	if (ch == 1) {
783 /*
784  * During recording, this register is known to give back
785  * garbage if it's not quiescent while being read. That's
786  * why we spl, stop the DMA, and try over and over until
787  * adjacent reads are "close", in the right order and not
788  * bigger than is otherwise possible.
789  */
790 		ess_dmatrigger(sc, ch, 0);
791 		DELAY(20);
792 		do {
793 			DELAY(10);
794 			if (j > 1)
795 				printf("DMA count reg bogus: %04x & %04x\n",
796 					i, p);
797 			i = port_rd(sc->vc, 0x4, 2) + 1;
798 			p = port_rd(sc->vc, 0x4, 2) + 1;
799 		} while ((p > sc->dmasz[ch - 1] || i < p || (p - i) > 0x8) && j++ < 1000);
800 		ess_dmatrigger(sc, ch, 1);
801 	}
802 	else if (ch == 2)
803 		p = port_rd(sc->io, 0x4, 2);
804 	return sc->dmasz[ch - 1] - p;
805 }
806 
807 static int
808 ess_dmatrigger(struct ess_info *sc, int ch, int go)
809 {
810 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
811 	if (ch == 1)
812 		port_wr(sc->vc, 0xf, go? 0x00 : 0x01, 1); /* mask */
813 	else if (ch == 2)
814 		port_wr(sc->io, 0x6, 0x08 | (go? 0x02 : 0x00), 1); /* autoinit */
815 	return 0;
816 }
817 
818 static void
819 ess_release_resources(struct ess_info *sc, device_t dev)
820 {
821     	if (sc->irq) {
822 		if (sc->ih)
823 			bus_teardown_intr(dev, sc->irq, sc->ih);
824 		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
825 		sc->irq = NULL;
826     	}
827     	if (sc->io) {
828 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->io);
829 		sc->io = NULL;
830     	}
831 
832     	if (sc->sb) {
833 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(1), sc->sb);
834 		sc->sb = NULL;
835     	}
836 
837     	if (sc->vc) {
838 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(2), sc->vc);
839 		sc->vc = NULL;
840     	}
841 
842     	if (sc->mpu) {
843 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(3), sc->mpu);
844 		sc->mpu = NULL;
845     	}
846 
847     	if (sc->gp) {
848 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(4), sc->gp);
849 		sc->gp = NULL;
850     	}
851 
852 	if (sc->parent_dmat) {
853 		bus_dma_tag_destroy(sc->parent_dmat);
854 		sc->parent_dmat = 0;
855     	}
856 
857 	if (sc->lock) {
858 		snd_mtxfree(sc->lock);
859 		sc->lock = NULL;
860 	}
861 
862     	free(sc, M_DEVBUF);
863 }
864 
865 static int
866 ess_alloc_resources(struct ess_info *sc, device_t dev)
867 {
868 	int rid;
869 
870 	rid = PCIR_BAR(0);
871     	sc->io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
872 
873 	rid = PCIR_BAR(1);
874     	sc->sb = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
875 
876 	rid = PCIR_BAR(2);
877     	sc->vc = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
878 
879 	rid = PCIR_BAR(3);
880     	sc->mpu = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
881 
882 	rid = PCIR_BAR(4);
883     	sc->gp = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
884 
885 	rid = 0;
886 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
887 		RF_ACTIVE | RF_SHAREABLE);
888 
889 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_solo softc");
890 
891 	return (sc->irq && sc->io && sc->sb && sc->vc &&
892 				sc->mpu && sc->gp && sc->lock)? 0 : ENXIO;
893 }
894 
895 static int
896 ess_probe(device_t dev)
897 {
898 	char *s = NULL;
899 	u_int32_t subdev;
900 
901 	subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev);
902 	switch (pci_get_devid(dev)) {
903 	case 0x1969125d:
904 		if (subdev == 0x8888125d)
905 			s = "ESS Solo-1E";
906 		else if (subdev == 0x1818125d)
907 			s = "ESS Solo-1";
908 		else
909 			s = "ESS Solo-1 (unknown vendor)";
910 		break;
911 	}
912 
913 	if (s)
914 		device_set_desc(dev, s);
915 	return s ? BUS_PROBE_DEFAULT : ENXIO;
916 }
917 
918 #define ESS_PCI_LEGACYCONTROL       0x40
919 #define ESS_PCI_CONFIG              0x50
920 #define ESS_PCI_DDMACONTROL      	0x60
921 
922 static int
923 ess_suspend(device_t dev)
924 {
925   return 0;
926 }
927 
928 static int
929 ess_resume(device_t dev)
930 {
931 	uint16_t ddma;
932 	struct ess_info *sc = pcm_getdevinfo(dev);
933 
934 	ess_lock(sc);
935 	ddma = rman_get_start(sc->vc) | 1;
936 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
937 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
938 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
939 
940     	if (ess_reset_dsp(sc)) {
941 		ess_unlock(sc);
942 		goto no;
943 	}
944 	ess_unlock(sc);
945     	if (mixer_reinit(dev))
946 		goto no;
947 	ess_lock(sc);
948 	if (sc->newspeed)
949 		ess_setmixer(sc, 0x71, 0x2a);
950 
951 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
952 	ess_unlock(sc);
953 
954 	return 0;
955  no:
956 	return EIO;
957 }
958 
959 static int
960 ess_attach(device_t dev)
961 {
962     	struct ess_info *sc;
963     	char status[SND_STATUSLEN];
964 	u_int16_t ddma;
965 
966 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
967 	pci_enable_busmaster(dev);
968 
969     	if (ess_alloc_resources(sc, dev))
970 		goto no;
971 
972 	sc->bufsz = pcm_getbuffersize(dev, 4096, SOLO_DEFAULT_BUFSZ, 65536);
973 
974 	ddma = rman_get_start(sc->vc) | 1;
975 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
976 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
977 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
978 
979 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
980 #ifdef ESS18XX_DUPLEX
981 	sc->duplex = 1;
982 #else
983 	sc->duplex = 0;
984 #endif
985 
986 #ifdef ESS18XX_NEWSPEED
987 	sc->newspeed = 1;
988 #else
989 	sc->newspeed = 0;
990 #endif
991 	if (snd_setup_intr(dev, sc->irq, INTR_MPSAFE, ess_intr, sc, &sc->ih)) {
992 		device_printf(dev, "unable to map interrupt\n");
993 		goto no;
994 	}
995 
996     	if (!sc->duplex)
997 		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
998 
999 #if 0
1000     	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/65536, /*boundary*/0,
1001 #endif
1002     	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, /*boundary*/0,
1003 			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
1004 			/*highaddr*/BUS_SPACE_MAXADDR,
1005 			/*filter*/NULL, /*filterarg*/NULL,
1006 			/*maxsize*/sc->bufsz, /*nsegments*/1,
1007 			/*maxsegz*/0x3ffff,
1008 			/*flags*/0,
1009 			/*lockfunc*/NULL, /*lockarg*/NULL,
1010 			&sc->parent_dmat) != 0) {
1011 		device_printf(dev, "unable to create dma tag\n");
1012 		goto no;
1013     	}
1014 
1015     	if (ess_reset_dsp(sc))
1016 		goto no;
1017 
1018 	if (sc->newspeed)
1019 		ess_setmixer(sc, 0x71, 0x2a);
1020 
1021     	if (mixer_init(dev, &solomixer_class, sc))
1022 		goto no;
1023 
1024 	snprintf(status, SND_STATUSLEN, "port 0x%jx,0x%jx,0x%jx irq %jd on %s",
1025     	     	rman_get_start(sc->io), rman_get_start(sc->sb), rman_get_start(sc->vc),
1026 		rman_get_start(sc->irq),
1027 		device_get_nameunit(device_get_parent(dev)));
1028 
1029     	if (pcm_register(dev, sc, 1, 1))
1030 		goto no;
1031       	pcm_addchan(dev, PCMDIR_REC, &esschan_class, sc);
1032 	pcm_addchan(dev, PCMDIR_PLAY, &esschan_class, sc);
1033 	pcm_setstatus(dev, status);
1034 
1035     	return 0;
1036 
1037 no:
1038     	ess_release_resources(sc, dev);
1039     	return ENXIO;
1040 }
1041 
1042 static int
1043 ess_detach(device_t dev)
1044 {
1045 	int r;
1046 	struct ess_info *sc;
1047 
1048 	r = pcm_unregister(dev);
1049 	if (r)
1050 		return r;
1051 
1052 	sc = pcm_getdevinfo(dev);
1053     	ess_release_resources(sc, dev);
1054 	return 0;
1055 }
1056 
1057 static device_method_t ess_methods[] = {
1058 	/* Device interface */
1059 	DEVMETHOD(device_probe,		ess_probe),
1060 	DEVMETHOD(device_attach,	ess_attach),
1061 	DEVMETHOD(device_detach,	ess_detach),
1062 	DEVMETHOD(device_resume,	ess_resume),
1063 	DEVMETHOD(device_suspend,	ess_suspend),
1064 	{ 0, 0 }
1065 };
1066 
1067 static driver_t ess_driver = {
1068 	"pcm",
1069 	ess_methods,
1070 	PCM_SOFTC_SIZE,
1071 };
1072 
1073 DRIVER_MODULE(snd_solo, pci, ess_driver, 0, 0);
1074 MODULE_DEPEND(snd_solo, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1075 MODULE_VERSION(snd_solo, 1);
1076