xref: /freebsd/sys/dev/sound/pci/solo.c (revision e1e636193db45630c7881246d25902e57c43d24e)
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 #include  <dev/sound/chip.h>
39 
40 #include "mixer_if.h"
41 
42 #define SOLO_DEFAULT_BUFSZ 16384
43 #define ABS(x) (((x) < 0)? -(x) : (x))
44 
45 /* if defined, playback always uses the 2nd channel and full duplex works */
46 #define ESS18XX_DUPLEX	1
47 
48 /* more accurate clocks and split audio1/audio2 rates */
49 #define ESS18XX_NEWSPEED
50 
51 static u_int32_t ess_playfmt[] = {
52 	SND_FORMAT(AFMT_U8, 1, 0),
53 	SND_FORMAT(AFMT_U8, 2, 0),
54 	SND_FORMAT(AFMT_S8, 1, 0),
55 	SND_FORMAT(AFMT_S8, 2, 0),
56 	SND_FORMAT(AFMT_S16_LE, 1, 0),
57 	SND_FORMAT(AFMT_S16_LE, 2, 0),
58 	SND_FORMAT(AFMT_U16_LE, 1, 0),
59 	SND_FORMAT(AFMT_U16_LE, 2, 0),
60 	0
61 };
62 static struct pcmchan_caps ess_playcaps = {6000, 48000, ess_playfmt, 0};
63 
64 /*
65  * Recording output is byte-swapped
66  */
67 static u_int32_t ess_recfmt[] = {
68 	SND_FORMAT(AFMT_U8, 1, 0),
69 	SND_FORMAT(AFMT_U8, 2, 0),
70 	SND_FORMAT(AFMT_S8, 1, 0),
71 	SND_FORMAT(AFMT_S8, 2, 0),
72 	SND_FORMAT(AFMT_S16_BE, 1, 0),
73 	SND_FORMAT(AFMT_S16_BE, 2, 0),
74 	SND_FORMAT(AFMT_U16_BE, 1, 0),
75 	SND_FORMAT(AFMT_U16_BE, 2, 0),
76 	0
77 };
78 static struct pcmchan_caps ess_reccaps = {6000, 48000, ess_recfmt, 0};
79 
80 struct ess_info;
81 
82 struct ess_chinfo {
83 	struct ess_info *parent;
84 	struct pcm_channel *channel;
85 	struct snd_dbuf *buffer;
86 	int dir, hwch, stopping;
87 	u_int32_t fmt, spd, blksz;
88 };
89 
90 struct ess_info {
91     	struct resource *io, *sb, *vc, *mpu, *gp;	/* I/O address for the board */
92     	struct resource *irq;
93 	void		*ih;
94     	bus_dma_tag_t parent_dmat;
95 
96     	int simplex_dir, type, dmasz[2];
97 	unsigned int duplex:1, newspeed:1;
98 	unsigned int bufsz;
99 
100     	struct ess_chinfo pch, rch;
101 	struct mtx *lock;
102 };
103 
104 #define ess_lock(_ess) snd_mtxlock((_ess)->lock)
105 #define ess_unlock(_ess) snd_mtxunlock((_ess)->lock)
106 #define ess_lock_assert(_ess) snd_mtxassert((_ess)->lock)
107 
108 static int ess_rd(struct ess_info *sc, int reg);
109 static void ess_wr(struct ess_info *sc, int reg, u_int8_t val);
110 static int ess_dspready(struct ess_info *sc);
111 static int ess_cmd(struct ess_info *sc, u_char val);
112 static int ess_cmd1(struct ess_info *sc, u_char cmd, int val);
113 static int ess_get_byte(struct ess_info *sc);
114 static void ess_setmixer(struct ess_info *sc, u_int port, u_int value);
115 static int ess_getmixer(struct ess_info *sc, u_int port);
116 static int ess_reset_dsp(struct ess_info *sc);
117 
118 static int ess_write(struct ess_info *sc, u_char reg, int val);
119 static int ess_read(struct ess_info *sc, u_char reg);
120 
121 static void ess_intr(void *arg);
122 static int ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len);
123 static int ess_start(struct ess_chinfo *ch);
124 static int ess_stop(struct ess_chinfo *ch);
125 
126 static int ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir);
127 static int ess_dmapos(struct ess_info *sc, int ch);
128 static int ess_dmatrigger(struct ess_info *sc, int ch, int go);
129 
130 /*
131  * Common code for the midi and pcm functions
132  *
133  * ess_cmd write a single byte to the CMD port.
134  * ess_cmd1 write a CMD + 1 byte arg
135  * ess_cmd2 write a CMD + 2 byte arg
136  * ess_get_byte returns a single byte from the DSP data port
137  *
138  * ess_write is actually ess_cmd1
139  * ess_read access ext. regs via ess_cmd(0xc0, reg) followed by ess_get_byte
140  */
141 
142 static int
143 port_rd(struct resource *port, int regno, int size)
144 {
145 	bus_space_tag_t st = rman_get_bustag(port);
146 	bus_space_handle_t sh = rman_get_bushandle(port);
147 
148 	switch (size) {
149 	case 1:
150 		return bus_space_read_1(st, sh, regno);
151 	case 2:
152 		return bus_space_read_2(st, sh, regno);
153 	case 4:
154 		return bus_space_read_4(st, sh, regno);
155 	default:
156 		return 0xffffffff;
157 	}
158 }
159 
160 static void
161 port_wr(struct resource *port, int regno, u_int32_t data, int size)
162 {
163 	bus_space_tag_t st = rman_get_bustag(port);
164 	bus_space_handle_t sh = rman_get_bushandle(port);
165 
166 	switch (size) {
167 	case 1:
168 		bus_space_write_1(st, sh, regno, data);
169 		break;
170 	case 2:
171 		bus_space_write_2(st, sh, regno, data);
172 		break;
173 	case 4:
174 		bus_space_write_4(st, sh, regno, data);
175 		break;
176 	}
177 }
178 
179 static int
180 ess_rd(struct ess_info *sc, int reg)
181 {
182 	return port_rd(sc->sb, reg, 1);
183 }
184 
185 static void
186 ess_wr(struct ess_info *sc, int reg, u_int8_t val)
187 {
188 	port_wr(sc->sb, reg, val, 1);
189 }
190 
191 static int
192 ess_dspready(struct ess_info *sc)
193 {
194 	return ((ess_rd(sc, SBDSP_STATUS) & 0x80) == 0);
195 }
196 
197 static int
198 ess_dspwr(struct ess_info *sc, u_char val)
199 {
200     	int  i;
201 
202     	for (i = 0; i < 1000; i++) {
203 		if (ess_dspready(sc)) {
204 	    		ess_wr(sc, SBDSP_CMD, val);
205 	    		return 1;
206 		}
207 		if (i > 10) DELAY((i > 100)? 1000 : 10);
208     	}
209     	printf("ess_dspwr(0x%02x) timed out.\n", val);
210     	return 0;
211 }
212 
213 static int
214 ess_cmd(struct ess_info *sc, u_char val)
215 {
216 	DEB(printf("ess_cmd: %x\n", val));
217     	return ess_dspwr(sc, val);
218 }
219 
220 static int
221 ess_cmd1(struct ess_info *sc, u_char cmd, int val)
222 {
223     	DEB(printf("ess_cmd1: %x, %x\n", cmd, val));
224     	if (ess_dspwr(sc, cmd)) {
225 		return ess_dspwr(sc, val & 0xff);
226     	} else return 0;
227 }
228 
229 static void
230 ess_setmixer(struct ess_info *sc, u_int port, u_int value)
231 {
232 	DEB(printf("ess_setmixer: reg=%x, val=%x\n", port, value);)
233     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
234     	DELAY(10);
235     	ess_wr(sc, SB_MIX_DATA, (u_char) (value & 0xff));
236     	DELAY(10);
237 }
238 
239 static int
240 ess_getmixer(struct ess_info *sc, u_int port)
241 {
242     	int val;
243 
244     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
245     	DELAY(10);
246     	val = ess_rd(sc, SB_MIX_DATA);
247     	DELAY(10);
248 
249     	return val;
250 }
251 
252 static int
253 ess_get_byte(struct ess_info *sc)
254 {
255     	int i;
256 
257     	for (i = 1000; i > 0; i--) {
258 		if (ess_rd(sc, 0xc) & 0x40)
259 			return ess_rd(sc, DSP_READ);
260 		else
261 			DELAY(20);
262     	}
263     	return -1;
264 }
265 
266 static int
267 ess_write(struct ess_info *sc, u_char reg, int val)
268 {
269     	return ess_cmd1(sc, reg, val);
270 }
271 
272 static int
273 ess_read(struct ess_info *sc, u_char reg)
274 {
275     	return (ess_cmd(sc, 0xc0) && ess_cmd(sc, reg))? ess_get_byte(sc) : -1;
276 }
277 
278 static int
279 ess_reset_dsp(struct ess_info *sc)
280 {
281 	DEB(printf("ess_reset_dsp\n"));
282     	ess_wr(sc, SBDSP_RST, 3);
283     	DELAY(100);
284     	ess_wr(sc, SBDSP_RST, 0);
285     	if (ess_get_byte(sc) != 0xAA) {
286         	DEB(printf("ess_reset_dsp failed\n"));
287 /*
288 			   rman_get_start(d->io_base)));
289 */
290 		return ENXIO;	/* Sorry */
291     	}
292     	ess_cmd(sc, 0xc6);
293     	return 0;
294 }
295 
296 static void
297 ess_intr(void *arg)
298 {
299     	struct ess_info *sc = (struct ess_info *)arg;
300 	int src, pirq = 0, rirq = 0;
301 
302 	ess_lock(sc);
303 	src = 0;
304 	if (ess_getmixer(sc, 0x7a) & 0x80)
305 		src |= 2;
306 	if (ess_rd(sc, 0x0c) & 0x01)
307 		src |= 1;
308 
309 	if (src == 0) {
310 		ess_unlock(sc);
311 		return;
312 	}
313 
314 	if (sc->duplex) {
315 		pirq = (src & sc->pch.hwch)? 1 : 0;
316 		rirq = (src & sc->rch.hwch)? 1 : 0;
317 	} else {
318 		if (sc->simplex_dir == PCMDIR_PLAY)
319 			pirq = 1;
320 		if (sc->simplex_dir == PCMDIR_REC)
321 			rirq = 1;
322 		if (!pirq && !rirq)
323 			printf("solo: IRQ neither playback nor rec!\n");
324 	}
325 
326 	DEB(printf("ess_intr: pirq:%d rirq:%d\n",pirq,rirq));
327 
328 	if (pirq) {
329 		if (sc->pch.stopping) {
330 			ess_dmatrigger(sc, sc->pch.hwch, 0);
331 			sc->pch.stopping = 0;
332 			if (sc->pch.hwch == 1)
333 				ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
334 			else
335 				ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x03);
336 		}
337 		ess_unlock(sc);
338 		chn_intr(sc->pch.channel);
339 		ess_lock(sc);
340 	}
341 
342 	if (rirq) {
343 		if (sc->rch.stopping) {
344 			ess_dmatrigger(sc, sc->rch.hwch, 0);
345 			sc->rch.stopping = 0;
346 			/* XXX: will this stop audio2? */
347 			ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
348 		}
349 		ess_unlock(sc);
350 		chn_intr(sc->rch.channel);
351 		ess_lock(sc);
352 	}
353 
354 	if (src & 2)
355 		ess_setmixer(sc, 0x7a, ess_getmixer(sc, 0x7a) & ~0x80);
356 	if (src & 1)
357     		ess_rd(sc, DSP_DATA_AVAIL);
358 
359 	ess_unlock(sc);
360 }
361 
362 /* utility functions for ESS */
363 static u_int8_t
364 ess_calcspeed8(int *spd)
365 {
366 	int speed = *spd;
367 	u_int32_t t;
368 
369 	if (speed > 22000) {
370 		t = (795500 + speed / 2) / speed;
371 		speed = (795500 + t / 2) / t;
372 		t = (256 - t) | 0x80;
373 	} else {
374 		t = (397700 + speed / 2) / speed;
375 		speed = (397700 + t / 2) / t;
376 		t = 128 - t;
377 	}
378 	*spd = speed;
379 	return t & 0x000000ff;
380 }
381 
382 static u_int8_t
383 ess_calcspeed9(int *spd)
384 {
385 	int speed, s0, s1, use0;
386 	u_int8_t t0, t1;
387 
388 	/* rate = source / (256 - divisor) */
389 	/* divisor = 256 - (source / rate) */
390 	speed = *spd;
391 	t0 = 128 - (793800 / speed);
392 	s0 = 793800 / (128 - t0);
393 
394 	t1 = 128 - (768000 / speed);
395 	s1 = 768000 / (128 - t1);
396 	t1 |= 0x80;
397 
398 	use0 = (ABS(speed - s0) < ABS(speed - s1))? 1 : 0;
399 
400 	*spd = use0? s0 : s1;
401 	return use0? t0 : t1;
402 }
403 
404 static u_int8_t
405 ess_calcfilter(int spd)
406 {
407 	int cutoff;
408 
409 	/* cutoff = 7160000 / (256 - divisor) */
410 	/* divisor = 256 - (7160000 / cutoff) */
411 	cutoff = (spd * 9 * 82) / 20;
412 	return (256 - (7160000 / cutoff));
413 }
414 
415 static int
416 ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len)
417 {
418 	int play = (dir == PCMDIR_PLAY)? 1 : 0;
419 	int b16 = (fmt & AFMT_16BIT)? 1 : 0;
420 	int stereo = (AFMT_CHANNEL(fmt) > 1)? 1 : 0;
421 	int unsign = (!(fmt & AFMT_SIGNED))? 1 : 0;
422 	u_int8_t spdval, fmtval;
423 
424 	DEB(printf("ess_setupch\n"));
425 	spdval = (sc->newspeed)? ess_calcspeed9(&spd) : ess_calcspeed8(&spd);
426 
427 	sc->simplex_dir = play ? PCMDIR_PLAY : PCMDIR_REC ;
428 
429 	if (ch == 1) {
430 		KASSERT((dir == PCMDIR_PLAY) || (dir == PCMDIR_REC), ("ess_setupch: dir1 bad"));
431 		len = -len;
432 		/* transfer length low */
433 		ess_write(sc, 0xa4, len & 0x00ff);
434 		/* transfer length high */
435 		ess_write(sc, 0xa5, (len & 0xff00) >> 8);
436 		/* autoinit, dma dir */
437 		ess_write(sc, 0xb8, 0x04 | (play? 0x00 : 0x0a));
438 		/* mono/stereo */
439 		ess_write(sc, 0xa8, (ess_read(sc, 0xa8) & ~0x03) | (stereo? 0x01 : 0x02));
440 		/* demand mode, 4 bytes/xfer */
441 		ess_write(sc, 0xb9, 0x02);
442 		/* sample rate */
443         	ess_write(sc, 0xa1, spdval);
444 		/* filter cutoff */
445 		ess_write(sc, 0xa2, ess_calcfilter(spd));
446 		/* setup dac/adc */
447 		/*
448 		if (play)
449 			ess_write(sc, 0xb6, unsign? 0x80 : 0x00);
450 		*/
451 		/* mono, b16: signed, load signal */
452 		/*
453 		ess_write(sc, 0xb7, 0x51 | (unsign? 0x00 : 0x20));
454 		*/
455 		/* setup fifo */
456 		ess_write(sc, 0xb7, 0x91 | (unsign? 0x00 : 0x20) |
457 					   (b16? 0x04 : 0x00) |
458 					   (stereo? 0x08 : 0x40));
459 		/* irq control */
460 		ess_write(sc, 0xb1, (ess_read(sc, 0xb1) & 0x0f) | 0x50);
461 		/* drq control */
462 		ess_write(sc, 0xb2, (ess_read(sc, 0xb2) & 0x0f) | 0x50);
463 	} else if (ch == 2) {
464 		KASSERT(dir == PCMDIR_PLAY, ("ess_setupch: dir2 bad"));
465 		len >>= 1;
466 		len = -len;
467 		/* transfer length low */
468 		ess_setmixer(sc, 0x74, len & 0x00ff);
469 		/* transfer length high */
470 		ess_setmixer(sc, 0x76, (len & 0xff00) >> 8);
471 		/* autoinit, 4 bytes/req */
472 		ess_setmixer(sc, 0x78, 0x10);
473 		fmtval = b16 | (stereo << 1) | ((!unsign) << 2);
474 		/* enable irq, set format */
475 		ess_setmixer(sc, 0x7a, 0x40 | fmtval);
476 		if (sc->newspeed) {
477 			/* sample rate */
478 			ess_setmixer(sc, 0x70, spdval);
479 			/* filter cutoff */
480 			ess_setmixer(sc, 0x72, ess_calcfilter(spd));
481 		}
482 	}
483 	return 0;
484 }
485 static int
486 ess_start(struct ess_chinfo *ch)
487 {
488 	struct ess_info *sc = ch->parent;
489 
490 	DEB(printf("ess_start\n"););
491 	ess_setupch(sc, ch->hwch, ch->dir, ch->spd, ch->fmt, ch->blksz);
492 	ch->stopping = 0;
493 	if (ch->hwch == 1) {
494 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) | 0x01);
495 		if (ch->dir == PCMDIR_PLAY) {
496 #if 0
497 			DELAY(100000); /* 100 ms */
498 #endif
499 			ess_cmd(sc, 0xd1);
500 		}
501 	} else
502 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) | 0x03);
503 	return 0;
504 }
505 
506 static int
507 ess_stop(struct ess_chinfo *ch)
508 {
509 	struct ess_info *sc = ch->parent;
510 
511 	DEB(printf("ess_stop\n"));
512 	ch->stopping = 1;
513 	if (ch->hwch == 1)
514 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x04);
515 	else
516 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x10);
517 	DEB(printf("done with stop\n"));
518 	return 0;
519 }
520 
521 /* -------------------------------------------------------------------- */
522 /* channel interface for ESS18xx */
523 static void *
524 esschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
525 {
526 	struct ess_info *sc = devinfo;
527 	struct ess_chinfo *ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
528 
529 	DEB(printf("esschan_init\n"));
530 	ch->parent = sc;
531 	ch->channel = c;
532 	ch->buffer = b;
533 	ch->dir = dir;
534 	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsz) != 0)
535 		return NULL;
536 	ch->hwch = 1;
537 	if ((dir == PCMDIR_PLAY) && (sc->duplex))
538 		ch->hwch = 2;
539 	return ch;
540 }
541 
542 static int
543 esschan_setformat(kobj_t obj, void *data, u_int32_t format)
544 {
545 	struct ess_chinfo *ch = data;
546 
547 	ch->fmt = format;
548 	return 0;
549 }
550 
551 static u_int32_t
552 esschan_setspeed(kobj_t obj, void *data, u_int32_t speed)
553 {
554 	struct ess_chinfo *ch = data;
555 	struct ess_info *sc = ch->parent;
556 
557 	ch->spd = speed;
558 	if (sc->newspeed)
559 		ess_calcspeed9(&ch->spd);
560 	else
561 		ess_calcspeed8(&ch->spd);
562 	return ch->spd;
563 }
564 
565 static u_int32_t
566 esschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
567 {
568 	struct ess_chinfo *ch = data;
569 
570 	ch->blksz = blocksize;
571 	return ch->blksz;
572 }
573 
574 static int
575 esschan_trigger(kobj_t obj, void *data, int go)
576 {
577 	struct ess_chinfo *ch = data;
578 	struct ess_info *sc = ch->parent;
579 
580 	if (!PCMTRIG_COMMON(go))
581 		return 0;
582 
583 	DEB(printf("esschan_trigger: %d\n",go));
584 
585 	ess_lock(sc);
586 	switch (go) {
587 	case PCMTRIG_START:
588 		ess_dmasetup(sc, ch->hwch, sndbuf_getbufaddr(ch->buffer), sndbuf_getsize(ch->buffer), ch->dir);
589 		ess_dmatrigger(sc, ch->hwch, 1);
590 		ess_start(ch);
591 		break;
592 
593 	case PCMTRIG_STOP:
594 	case PCMTRIG_ABORT:
595 	default:
596 		ess_stop(ch);
597 		break;
598 	}
599 	ess_unlock(sc);
600 	return 0;
601 }
602 
603 static u_int32_t
604 esschan_getptr(kobj_t obj, void *data)
605 {
606 	struct ess_chinfo *ch = data;
607 	struct ess_info *sc = ch->parent;
608 	u_int32_t ret;
609 
610 	ess_lock(sc);
611 	ret = ess_dmapos(sc, ch->hwch);
612 	ess_unlock(sc);
613 	return ret;
614 }
615 
616 static struct pcmchan_caps *
617 esschan_getcaps(kobj_t obj, void *data)
618 {
619 	struct ess_chinfo *ch = data;
620 
621 	return (ch->dir == PCMDIR_PLAY)? &ess_playcaps : &ess_reccaps;
622 }
623 
624 static kobj_method_t esschan_methods[] = {
625     	KOBJMETHOD(channel_init,		esschan_init),
626     	KOBJMETHOD(channel_setformat,		esschan_setformat),
627     	KOBJMETHOD(channel_setspeed,		esschan_setspeed),
628     	KOBJMETHOD(channel_setblocksize,	esschan_setblocksize),
629     	KOBJMETHOD(channel_trigger,		esschan_trigger),
630     	KOBJMETHOD(channel_getptr,		esschan_getptr),
631     	KOBJMETHOD(channel_getcaps,		esschan_getcaps),
632 	KOBJMETHOD_END
633 };
634 CHANNEL_DECLARE(esschan);
635 
636 /************************************************************/
637 
638 static int
639 essmix_init(struct snd_mixer *m)
640 {
641     	struct ess_info *sc = mix_getdevinfo(m);
642 
643 	mix_setrecdevs(m, SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE |
644 			  SOUND_MASK_IMIX);
645 
646 	mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
647 		       SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME |
648 		       SOUND_MASK_LINE1);
649 
650 	ess_setmixer(sc, 0, 0); /* reset */
651 
652 	return 0;
653 }
654 
655 static int
656 essmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
657 {
658     	struct ess_info *sc = mix_getdevinfo(m);
659     	int preg = 0, rreg = 0, l, r;
660 
661 	l = (left * 15) / 100;
662 	r = (right * 15) / 100;
663 	switch (dev) {
664 	case SOUND_MIXER_SYNTH:
665 		preg = 0x36;
666 		rreg = 0x6b;
667 		break;
668 
669 	case SOUND_MIXER_PCM:
670 		preg = 0x14;
671 		rreg = 0x7c;
672 		break;
673 
674 	case SOUND_MIXER_LINE:
675 		preg = 0x3e;
676 		rreg = 0x6e;
677 		break;
678 
679 	case SOUND_MIXER_MIC:
680 		preg = 0x1a;
681 		rreg = 0x68;
682 		break;
683 
684 	case SOUND_MIXER_LINE1:
685 		preg = 0x3a;
686 		rreg = 0x6c;
687 		break;
688 
689 	case SOUND_MIXER_CD:
690 		preg = 0x38;
691 		rreg = 0x6a;
692 		break;
693 
694 	case SOUND_MIXER_VOLUME:
695 		l = left? (left * 63) / 100 : 64;
696 		r = right? (right * 63) / 100 : 64;
697 		ess_setmixer(sc, 0x60, l);
698 		ess_setmixer(sc, 0x62, r);
699 		left = (l == 64)? 0 : (l * 100) / 63;
700 		right = (r == 64)? 0 : (r * 100) / 63;
701     		return left | (right << 8);
702 	}
703 
704 	if (preg)
705 		ess_setmixer(sc, preg, (l << 4) | r);
706 	if (rreg)
707 		ess_setmixer(sc, rreg, (l << 4) | r);
708 
709 	left = (l * 100) / 15;
710 	right = (r * 100) / 15;
711 
712     	return left | (right << 8);
713 }
714 
715 static u_int32_t
716 essmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
717 {
718     	struct ess_info *sc = mix_getdevinfo(m);
719     	u_char recdev;
720 
721     	switch (src) {
722 	case SOUND_MASK_CD:
723 		recdev = 0x02;
724 		break;
725 
726 	case SOUND_MASK_LINE:
727 		recdev = 0x06;
728 		break;
729 
730 	case SOUND_MASK_IMIX:
731 		recdev = 0x05;
732 		break;
733 
734 	case SOUND_MASK_MIC:
735 	default:
736 		recdev = 0x00;
737 		src = SOUND_MASK_MIC;
738 		break;
739 	}
740 
741 	ess_setmixer(sc, 0x1c, recdev);
742 
743 	return src;
744 }
745 
746 static kobj_method_t solomixer_methods[] = {
747     	KOBJMETHOD(mixer_init,		essmix_init),
748     	KOBJMETHOD(mixer_set,		essmix_set),
749     	KOBJMETHOD(mixer_setrecsrc,	essmix_setrecsrc),
750 	KOBJMETHOD_END
751 };
752 MIXER_DECLARE(solomixer);
753 
754 /************************************************************/
755 
756 static int
757 ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir)
758 {
759 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
760 	sc->dmasz[ch - 1] = cnt;
761 	if (ch == 1) {
762 		port_wr(sc->vc, 0x8, 0xc4, 1); /* command */
763 		port_wr(sc->vc, 0xd, 0xff, 1); /* reset */
764 		port_wr(sc->vc, 0xf, 0x01, 1); /* mask */
765 		port_wr(sc->vc, 0xb, dir == PCMDIR_PLAY? 0x58 : 0x54, 1); /* mode */
766 		port_wr(sc->vc, 0x0, base, 4);
767 		port_wr(sc->vc, 0x4, cnt - 1, 2);
768 
769 	} else if (ch == 2) {
770 		port_wr(sc->io, 0x6, 0x08, 1); /* autoinit */
771 		port_wr(sc->io, 0x0, base, 4);
772 		port_wr(sc->io, 0x4, cnt, 2);
773 	}
774 	return 0;
775 }
776 
777 static int
778 ess_dmapos(struct ess_info *sc, int ch)
779 {
780 	int p = 0, i = 0, j = 0;
781 
782 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
783 	if (ch == 1) {
784 /*
785  * During recording, this register is known to give back
786  * garbage if it's not quiescent while being read. That's
787  * why we spl, stop the DMA, and try over and over until
788  * adjacent reads are "close", in the right order and not
789  * bigger than is otherwise possible.
790  */
791 		ess_dmatrigger(sc, ch, 0);
792 		DELAY(20);
793 		do {
794 			DELAY(10);
795 			if (j > 1)
796 				printf("DMA count reg bogus: %04x & %04x\n",
797 					i, p);
798 			i = port_rd(sc->vc, 0x4, 2) + 1;
799 			p = port_rd(sc->vc, 0x4, 2) + 1;
800 		} while ((p > sc->dmasz[ch - 1] || i < p || (p - i) > 0x8) && j++ < 1000);
801 		ess_dmatrigger(sc, ch, 1);
802 	}
803 	else if (ch == 2)
804 		p = port_rd(sc->io, 0x4, 2);
805 	return sc->dmasz[ch - 1] - p;
806 }
807 
808 static int
809 ess_dmatrigger(struct ess_info *sc, int ch, int go)
810 {
811 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
812 	if (ch == 1)
813 		port_wr(sc->vc, 0xf, go? 0x00 : 0x01, 1); /* mask */
814 	else if (ch == 2)
815 		port_wr(sc->io, 0x6, 0x08 | (go? 0x02 : 0x00), 1); /* autoinit */
816 	return 0;
817 }
818 
819 static void
820 ess_release_resources(struct ess_info *sc, device_t dev)
821 {
822     	if (sc->irq) {
823 		if (sc->ih)
824 			bus_teardown_intr(dev, sc->irq, sc->ih);
825 		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
826 		sc->irq = NULL;
827     	}
828     	if (sc->io) {
829 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->io);
830 		sc->io = NULL;
831     	}
832 
833     	if (sc->sb) {
834 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(1), sc->sb);
835 		sc->sb = NULL;
836     	}
837 
838     	if (sc->vc) {
839 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(2), sc->vc);
840 		sc->vc = NULL;
841     	}
842 
843     	if (sc->mpu) {
844 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(3), sc->mpu);
845 		sc->mpu = NULL;
846     	}
847 
848     	if (sc->gp) {
849 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(4), sc->gp);
850 		sc->gp = NULL;
851     	}
852 
853 	if (sc->parent_dmat) {
854 		bus_dma_tag_destroy(sc->parent_dmat);
855 		sc->parent_dmat = 0;
856     	}
857 
858 	if (sc->lock) {
859 		snd_mtxfree(sc->lock);
860 		sc->lock = NULL;
861 	}
862 
863     	free(sc, M_DEVBUF);
864 }
865 
866 static int
867 ess_alloc_resources(struct ess_info *sc, device_t dev)
868 {
869 	int rid;
870 
871 	rid = PCIR_BAR(0);
872     	sc->io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
873 
874 	rid = PCIR_BAR(1);
875     	sc->sb = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
876 
877 	rid = PCIR_BAR(2);
878     	sc->vc = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
879 
880 	rid = PCIR_BAR(3);
881     	sc->mpu = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
882 
883 	rid = PCIR_BAR(4);
884     	sc->gp = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
885 
886 	rid = 0;
887 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
888 		RF_ACTIVE | RF_SHAREABLE);
889 
890 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_solo softc");
891 
892 	return (sc->irq && sc->io && sc->sb && sc->vc &&
893 				sc->mpu && sc->gp && sc->lock)? 0 : ENXIO;
894 }
895 
896 static int
897 ess_probe(device_t dev)
898 {
899 	char *s = NULL;
900 	u_int32_t subdev;
901 
902 	subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev);
903 	switch (pci_get_devid(dev)) {
904 	case 0x1969125d:
905 		if (subdev == 0x8888125d)
906 			s = "ESS Solo-1E";
907 		else if (subdev == 0x1818125d)
908 			s = "ESS Solo-1";
909 		else
910 			s = "ESS Solo-1 (unknown vendor)";
911 		break;
912 	}
913 
914 	if (s)
915 		device_set_desc(dev, s);
916 	return s ? BUS_PROBE_DEFAULT : ENXIO;
917 }
918 
919 #define ESS_PCI_LEGACYCONTROL       0x40
920 #define ESS_PCI_CONFIG              0x50
921 #define ESS_PCI_DDMACONTROL      	0x60
922 
923 static int
924 ess_suspend(device_t dev)
925 {
926   return 0;
927 }
928 
929 static int
930 ess_resume(device_t dev)
931 {
932 	uint16_t ddma;
933 	struct ess_info *sc = pcm_getdevinfo(dev);
934 
935 	ess_lock(sc);
936 	ddma = rman_get_start(sc->vc) | 1;
937 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
938 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
939 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
940 
941     	if (ess_reset_dsp(sc)) {
942 		ess_unlock(sc);
943 		goto no;
944 	}
945 	ess_unlock(sc);
946     	if (mixer_reinit(dev))
947 		goto no;
948 	ess_lock(sc);
949 	if (sc->newspeed)
950 		ess_setmixer(sc, 0x71, 0x2a);
951 
952 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
953 	ess_unlock(sc);
954 
955 	return 0;
956  no:
957 	return EIO;
958 }
959 
960 static int
961 ess_attach(device_t dev)
962 {
963     	struct ess_info *sc;
964     	char status[SND_STATUSLEN];
965 	u_int16_t ddma;
966 
967 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
968 	pci_enable_busmaster(dev);
969 
970     	if (ess_alloc_resources(sc, dev))
971 		goto no;
972 
973 	sc->bufsz = pcm_getbuffersize(dev, 4096, SOLO_DEFAULT_BUFSZ, 65536);
974 
975 	ddma = rman_get_start(sc->vc) | 1;
976 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
977 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
978 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
979 
980 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
981 #ifdef ESS18XX_DUPLEX
982 	sc->duplex = 1;
983 #else
984 	sc->duplex = 0;
985 #endif
986 
987 #ifdef ESS18XX_NEWSPEED
988 	sc->newspeed = 1;
989 #else
990 	sc->newspeed = 0;
991 #endif
992 	if (snd_setup_intr(dev, sc->irq, INTR_MPSAFE, ess_intr, sc, &sc->ih)) {
993 		device_printf(dev, "unable to map interrupt\n");
994 		goto no;
995 	}
996 
997     	if (!sc->duplex)
998 		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
999 
1000 #if 0
1001     	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/65536, /*boundary*/0,
1002 #endif
1003     	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, /*boundary*/0,
1004 			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
1005 			/*highaddr*/BUS_SPACE_MAXADDR,
1006 			/*filter*/NULL, /*filterarg*/NULL,
1007 			/*maxsize*/sc->bufsz, /*nsegments*/1,
1008 			/*maxsegz*/0x3ffff,
1009 			/*flags*/0,
1010 			/*lockfunc*/NULL, /*lockarg*/NULL,
1011 			&sc->parent_dmat) != 0) {
1012 		device_printf(dev, "unable to create dma tag\n");
1013 		goto no;
1014     	}
1015 
1016     	if (ess_reset_dsp(sc))
1017 		goto no;
1018 
1019 	if (sc->newspeed)
1020 		ess_setmixer(sc, 0x71, 0x2a);
1021 
1022     	if (mixer_init(dev, &solomixer_class, sc))
1023 		goto no;
1024 
1025 	snprintf(status, SND_STATUSLEN, "port 0x%jx,0x%jx,0x%jx irq %jd on %s",
1026     	     	rman_get_start(sc->io), rman_get_start(sc->sb), rman_get_start(sc->vc),
1027 		rman_get_start(sc->irq),
1028 		device_get_nameunit(device_get_parent(dev)));
1029 
1030     	if (pcm_register(dev, sc, 1, 1))
1031 		goto no;
1032       	pcm_addchan(dev, PCMDIR_REC, &esschan_class, sc);
1033 	pcm_addchan(dev, PCMDIR_PLAY, &esschan_class, sc);
1034 	pcm_setstatus(dev, status);
1035 
1036     	return 0;
1037 
1038 no:
1039     	ess_release_resources(sc, dev);
1040     	return ENXIO;
1041 }
1042 
1043 static int
1044 ess_detach(device_t dev)
1045 {
1046 	int r;
1047 	struct ess_info *sc;
1048 
1049 	r = pcm_unregister(dev);
1050 	if (r)
1051 		return r;
1052 
1053 	sc = pcm_getdevinfo(dev);
1054     	ess_release_resources(sc, dev);
1055 	return 0;
1056 }
1057 
1058 static device_method_t ess_methods[] = {
1059 	/* Device interface */
1060 	DEVMETHOD(device_probe,		ess_probe),
1061 	DEVMETHOD(device_attach,	ess_attach),
1062 	DEVMETHOD(device_detach,	ess_detach),
1063 	DEVMETHOD(device_resume,	ess_resume),
1064 	DEVMETHOD(device_suspend,	ess_suspend),
1065 	{ 0, 0 }
1066 };
1067 
1068 static driver_t ess_driver = {
1069 	"pcm",
1070 	ess_methods,
1071 	PCM_SOFTC_SIZE,
1072 };
1073 
1074 DRIVER_MODULE(snd_solo, pci, ess_driver, 0, 0);
1075 MODULE_DEPEND(snd_solo, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1076 MODULE_VERSION(snd_solo, 1);
1077