xref: /freebsd/sys/dev/sound/pci/solo.c (revision 3e8eb5c7f4909209c042403ddee340b2ee7003a5)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 SND_DECLARE_FILE("$FreeBSD$");
43 
44 #define SOLO_DEFAULT_BUFSZ 16384
45 #define ABS(x) (((x) < 0)? -(x) : (x))
46 
47 /* if defined, playback always uses the 2nd channel and full duplex works */
48 #define ESS18XX_DUPLEX	1
49 
50 /* more accurate clocks and split audio1/audio2 rates */
51 #define ESS18XX_NEWSPEED
52 
53 static u_int32_t ess_playfmt[] = {
54 	SND_FORMAT(AFMT_U8, 1, 0),
55 	SND_FORMAT(AFMT_U8, 2, 0),
56 	SND_FORMAT(AFMT_S8, 1, 0),
57 	SND_FORMAT(AFMT_S8, 2, 0),
58 	SND_FORMAT(AFMT_S16_LE, 1, 0),
59 	SND_FORMAT(AFMT_S16_LE, 2, 0),
60 	SND_FORMAT(AFMT_U16_LE, 1, 0),
61 	SND_FORMAT(AFMT_U16_LE, 2, 0),
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 	SND_FORMAT(AFMT_U8, 1, 0),
71 	SND_FORMAT(AFMT_U8, 2, 0),
72 	SND_FORMAT(AFMT_S8, 1, 0),
73 	SND_FORMAT(AFMT_S8, 2, 0),
74 	SND_FORMAT(AFMT_S16_BE, 1, 0),
75 	SND_FORMAT(AFMT_S16_BE, 2, 0),
76 	SND_FORMAT(AFMT_U16_BE, 1, 0),
77 	SND_FORMAT(AFMT_U16_BE, 2, 0),
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, dmasz[2];
99 	unsigned int duplex:1, newspeed:1;
100 	unsigned int bufsz;
101 
102     	struct ess_chinfo pch, rch;
103 	struct mtx *lock;
104 };
105 
106 #define ess_lock(_ess) snd_mtxlock((_ess)->lock)
107 #define ess_unlock(_ess) snd_mtxunlock((_ess)->lock)
108 #define ess_lock_assert(_ess) snd_mtxassert((_ess)->lock)
109 
110 static int ess_rd(struct ess_info *sc, int reg);
111 static void ess_wr(struct ess_info *sc, int reg, u_int8_t val);
112 static int ess_dspready(struct ess_info *sc);
113 static int ess_cmd(struct ess_info *sc, u_char val);
114 static int ess_cmd1(struct ess_info *sc, u_char cmd, int val);
115 static int ess_get_byte(struct ess_info *sc);
116 static void ess_setmixer(struct ess_info *sc, u_int port, u_int value);
117 static int ess_getmixer(struct ess_info *sc, u_int port);
118 static int ess_reset_dsp(struct ess_info *sc);
119 
120 static int ess_write(struct ess_info *sc, u_char reg, int val);
121 static int ess_read(struct ess_info *sc, u_char reg);
122 
123 static void ess_intr(void *arg);
124 static int ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len);
125 static int ess_start(struct ess_chinfo *ch);
126 static int ess_stop(struct ess_chinfo *ch);
127 
128 static int ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir);
129 static int ess_dmapos(struct ess_info *sc, int ch);
130 static int ess_dmatrigger(struct ess_info *sc, int ch, int go);
131 
132 /*
133  * Common code for the midi and pcm functions
134  *
135  * ess_cmd write a single byte to the CMD port.
136  * ess_cmd1 write a CMD + 1 byte arg
137  * ess_cmd2 write a CMD + 2 byte arg
138  * ess_get_byte returns a single byte from the DSP data port
139  *
140  * ess_write is actually ess_cmd1
141  * ess_read access ext. regs via ess_cmd(0xc0, reg) followed by ess_get_byte
142  */
143 
144 static int
145 port_rd(struct resource *port, int regno, int size)
146 {
147 	bus_space_tag_t st = rman_get_bustag(port);
148 	bus_space_handle_t sh = rman_get_bushandle(port);
149 
150 	switch (size) {
151 	case 1:
152 		return bus_space_read_1(st, sh, regno);
153 	case 2:
154 		return bus_space_read_2(st, sh, regno);
155 	case 4:
156 		return bus_space_read_4(st, sh, regno);
157 	default:
158 		return 0xffffffff;
159 	}
160 }
161 
162 static void
163 port_wr(struct resource *port, int regno, u_int32_t data, int size)
164 {
165 	bus_space_tag_t st = rman_get_bustag(port);
166 	bus_space_handle_t sh = rman_get_bushandle(port);
167 
168 	switch (size) {
169 	case 1:
170 		bus_space_write_1(st, sh, regno, data);
171 		break;
172 	case 2:
173 		bus_space_write_2(st, sh, regno, data);
174 		break;
175 	case 4:
176 		bus_space_write_4(st, sh, regno, data);
177 		break;
178 	}
179 }
180 
181 static int
182 ess_rd(struct ess_info *sc, int reg)
183 {
184 	return port_rd(sc->sb, reg, 1);
185 }
186 
187 static void
188 ess_wr(struct ess_info *sc, int reg, u_int8_t val)
189 {
190 	port_wr(sc->sb, reg, val, 1);
191 }
192 
193 static int
194 ess_dspready(struct ess_info *sc)
195 {
196 	return ((ess_rd(sc, SBDSP_STATUS) & 0x80) == 0);
197 }
198 
199 static int
200 ess_dspwr(struct ess_info *sc, u_char val)
201 {
202     	int  i;
203 
204     	for (i = 0; i < 1000; i++) {
205 		if (ess_dspready(sc)) {
206 	    		ess_wr(sc, SBDSP_CMD, val);
207 	    		return 1;
208 		}
209 		if (i > 10) DELAY((i > 100)? 1000 : 10);
210     	}
211     	printf("ess_dspwr(0x%02x) timed out.\n", val);
212     	return 0;
213 }
214 
215 static int
216 ess_cmd(struct ess_info *sc, u_char val)
217 {
218 	DEB(printf("ess_cmd: %x\n", val));
219     	return ess_dspwr(sc, val);
220 }
221 
222 static int
223 ess_cmd1(struct ess_info *sc, u_char cmd, int val)
224 {
225     	DEB(printf("ess_cmd1: %x, %x\n", cmd, val));
226     	if (ess_dspwr(sc, cmd)) {
227 		return ess_dspwr(sc, val & 0xff);
228     	} else return 0;
229 }
230 
231 static void
232 ess_setmixer(struct ess_info *sc, u_int port, u_int value)
233 {
234 	DEB(printf("ess_setmixer: reg=%x, val=%x\n", port, value);)
235     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
236     	DELAY(10);
237     	ess_wr(sc, SB_MIX_DATA, (u_char) (value & 0xff));
238     	DELAY(10);
239 }
240 
241 static int
242 ess_getmixer(struct ess_info *sc, u_int port)
243 {
244     	int val;
245 
246     	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
247     	DELAY(10);
248     	val = ess_rd(sc, SB_MIX_DATA);
249     	DELAY(10);
250 
251     	return val;
252 }
253 
254 static int
255 ess_get_byte(struct ess_info *sc)
256 {
257     	int i;
258 
259     	for (i = 1000; i > 0; i--) {
260 		if (ess_rd(sc, 0xc) & 0x40)
261 			return ess_rd(sc, DSP_READ);
262 		else
263 			DELAY(20);
264     	}
265     	return -1;
266 }
267 
268 static int
269 ess_write(struct ess_info *sc, u_char reg, int val)
270 {
271     	return ess_cmd1(sc, reg, val);
272 }
273 
274 static int
275 ess_read(struct ess_info *sc, u_char reg)
276 {
277     	return (ess_cmd(sc, 0xc0) && ess_cmd(sc, reg))? ess_get_byte(sc) : -1;
278 }
279 
280 static int
281 ess_reset_dsp(struct ess_info *sc)
282 {
283 	DEB(printf("ess_reset_dsp\n"));
284     	ess_wr(sc, SBDSP_RST, 3);
285     	DELAY(100);
286     	ess_wr(sc, SBDSP_RST, 0);
287     	if (ess_get_byte(sc) != 0xAA) {
288         	DEB(printf("ess_reset_dsp failed\n"));
289 /*
290 			   rman_get_start(d->io_base)));
291 */
292 		return ENXIO;	/* Sorry */
293     	}
294     	ess_cmd(sc, 0xc6);
295     	return 0;
296 }
297 
298 static void
299 ess_intr(void *arg)
300 {
301     	struct ess_info *sc = (struct ess_info *)arg;
302 	int src, pirq = 0, rirq = 0;
303 
304 	ess_lock(sc);
305 	src = 0;
306 	if (ess_getmixer(sc, 0x7a) & 0x80)
307 		src |= 2;
308 	if (ess_rd(sc, 0x0c) & 0x01)
309 		src |= 1;
310 
311 	if (src == 0) {
312 		ess_unlock(sc);
313 		return;
314 	}
315 
316 	if (sc->duplex) {
317 		pirq = (src & sc->pch.hwch)? 1 : 0;
318 		rirq = (src & sc->rch.hwch)? 1 : 0;
319 	} else {
320 		if (sc->simplex_dir == PCMDIR_PLAY)
321 			pirq = 1;
322 		if (sc->simplex_dir == PCMDIR_REC)
323 			rirq = 1;
324 		if (!pirq && !rirq)
325 			printf("solo: IRQ neither playback nor rec!\n");
326 	}
327 
328 	DEB(printf("ess_intr: pirq:%d rirq:%d\n",pirq,rirq));
329 
330 	if (pirq) {
331 		if (sc->pch.stopping) {
332 			ess_dmatrigger(sc, sc->pch.hwch, 0);
333 			sc->pch.stopping = 0;
334 			if (sc->pch.hwch == 1)
335 				ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
336 			else
337 				ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x03);
338 		}
339 		ess_unlock(sc);
340 		chn_intr(sc->pch.channel);
341 		ess_lock(sc);
342 	}
343 
344 	if (rirq) {
345 		if (sc->rch.stopping) {
346 			ess_dmatrigger(sc, sc->rch.hwch, 0);
347 			sc->rch.stopping = 0;
348 			/* XXX: will this stop audio2? */
349 			ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
350 		}
351 		ess_unlock(sc);
352 		chn_intr(sc->rch.channel);
353 		ess_lock(sc);
354 	}
355 
356 	if (src & 2)
357 		ess_setmixer(sc, 0x7a, ess_getmixer(sc, 0x7a) & ~0x80);
358 	if (src & 1)
359     		ess_rd(sc, DSP_DATA_AVAIL);
360 
361 	ess_unlock(sc);
362 }
363 
364 /* utility functions for ESS */
365 static u_int8_t
366 ess_calcspeed8(int *spd)
367 {
368 	int speed = *spd;
369 	u_int32_t t;
370 
371 	if (speed > 22000) {
372 		t = (795500 + speed / 2) / speed;
373 		speed = (795500 + t / 2) / t;
374 		t = (256 - t) | 0x80;
375 	} else {
376 		t = (397700 + speed / 2) / speed;
377 		speed = (397700 + t / 2) / t;
378 		t = 128 - t;
379 	}
380 	*spd = speed;
381 	return t & 0x000000ff;
382 }
383 
384 static u_int8_t
385 ess_calcspeed9(int *spd)
386 {
387 	int speed, s0, s1, use0;
388 	u_int8_t t0, t1;
389 
390 	/* rate = source / (256 - divisor) */
391 	/* divisor = 256 - (source / rate) */
392 	speed = *spd;
393 	t0 = 128 - (793800 / speed);
394 	s0 = 793800 / (128 - t0);
395 
396 	t1 = 128 - (768000 / speed);
397 	s1 = 768000 / (128 - t1);
398 	t1 |= 0x80;
399 
400 	use0 = (ABS(speed - s0) < ABS(speed - s1))? 1 : 0;
401 
402 	*spd = use0? s0 : s1;
403 	return use0? t0 : t1;
404 }
405 
406 static u_int8_t
407 ess_calcfilter(int spd)
408 {
409 	int cutoff;
410 
411 	/* cutoff = 7160000 / (256 - divisor) */
412 	/* divisor = 256 - (7160000 / cutoff) */
413 	cutoff = (spd * 9 * 82) / 20;
414 	return (256 - (7160000 / cutoff));
415 }
416 
417 static int
418 ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len)
419 {
420 	int play = (dir == PCMDIR_PLAY)? 1 : 0;
421 	int b16 = (fmt & AFMT_16BIT)? 1 : 0;
422 	int stereo = (AFMT_CHANNEL(fmt) > 1)? 1 : 0;
423 	int unsign = (!(fmt & AFMT_SIGNED))? 1 : 0;
424 	u_int8_t spdval, fmtval;
425 
426 	DEB(printf("ess_setupch\n"));
427 	spdval = (sc->newspeed)? ess_calcspeed9(&spd) : ess_calcspeed8(&spd);
428 
429 	sc->simplex_dir = play ? PCMDIR_PLAY : PCMDIR_REC ;
430 
431 	if (ch == 1) {
432 		KASSERT((dir == PCMDIR_PLAY) || (dir == PCMDIR_REC), ("ess_setupch: dir1 bad"));
433 		len = -len;
434 		/* transfer length low */
435 		ess_write(sc, 0xa4, len & 0x00ff);
436 		/* transfer length high */
437 		ess_write(sc, 0xa5, (len & 0xff00) >> 8);
438 		/* autoinit, dma dir */
439 		ess_write(sc, 0xb8, 0x04 | (play? 0x00 : 0x0a));
440 		/* mono/stereo */
441 		ess_write(sc, 0xa8, (ess_read(sc, 0xa8) & ~0x03) | (stereo? 0x01 : 0x02));
442 		/* demand mode, 4 bytes/xfer */
443 		ess_write(sc, 0xb9, 0x02);
444 		/* sample rate */
445         	ess_write(sc, 0xa1, spdval);
446 		/* filter cutoff */
447 		ess_write(sc, 0xa2, ess_calcfilter(spd));
448 		/* setup dac/adc */
449 		/*
450 		if (play)
451 			ess_write(sc, 0xb6, unsign? 0x80 : 0x00);
452 		*/
453 		/* mono, b16: signed, load signal */
454 		/*
455 		ess_write(sc, 0xb7, 0x51 | (unsign? 0x00 : 0x20));
456 		*/
457 		/* setup fifo */
458 		ess_write(sc, 0xb7, 0x91 | (unsign? 0x00 : 0x20) |
459 					   (b16? 0x04 : 0x00) |
460 					   (stereo? 0x08 : 0x40));
461 		/* irq control */
462 		ess_write(sc, 0xb1, (ess_read(sc, 0xb1) & 0x0f) | 0x50);
463 		/* drq control */
464 		ess_write(sc, 0xb2, (ess_read(sc, 0xb2) & 0x0f) | 0x50);
465 	} else if (ch == 2) {
466 		KASSERT(dir == PCMDIR_PLAY, ("ess_setupch: dir2 bad"));
467 		len >>= 1;
468 		len = -len;
469 		/* transfer length low */
470 		ess_setmixer(sc, 0x74, len & 0x00ff);
471 		/* transfer length high */
472 		ess_setmixer(sc, 0x76, (len & 0xff00) >> 8);
473 		/* autoinit, 4 bytes/req */
474 		ess_setmixer(sc, 0x78, 0x10);
475 		fmtval = b16 | (stereo << 1) | ((!unsign) << 2);
476 		/* enable irq, set format */
477 		ess_setmixer(sc, 0x7a, 0x40 | fmtval);
478 		if (sc->newspeed) {
479 			/* sample rate */
480 			ess_setmixer(sc, 0x70, spdval);
481 			/* filter cutoff */
482 			ess_setmixer(sc, 0x72, ess_calcfilter(spd));
483 		}
484 	}
485 	return 0;
486 }
487 static int
488 ess_start(struct ess_chinfo *ch)
489 {
490 	struct ess_info *sc = ch->parent;
491 
492 	DEB(printf("ess_start\n"););
493 	ess_setupch(sc, ch->hwch, ch->dir, ch->spd, ch->fmt, ch->blksz);
494 	ch->stopping = 0;
495 	if (ch->hwch == 1) {
496 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) | 0x01);
497 		if (ch->dir == PCMDIR_PLAY) {
498 #if 0
499 			DELAY(100000); /* 100 ms */
500 #endif
501 			ess_cmd(sc, 0xd1);
502 		}
503 	} else
504 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) | 0x03);
505 	return 0;
506 }
507 
508 static int
509 ess_stop(struct ess_chinfo *ch)
510 {
511 	struct ess_info *sc = ch->parent;
512 
513 	DEB(printf("ess_stop\n"));
514 	ch->stopping = 1;
515 	if (ch->hwch == 1)
516 		ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x04);
517 	else
518 		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x10);
519 	DEB(printf("done with stop\n"));
520 	return 0;
521 }
522 
523 /* -------------------------------------------------------------------- */
524 /* channel interface for ESS18xx */
525 static void *
526 esschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
527 {
528 	struct ess_info *sc = devinfo;
529 	struct ess_chinfo *ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
530 
531 	DEB(printf("esschan_init\n"));
532 	ch->parent = sc;
533 	ch->channel = c;
534 	ch->buffer = b;
535 	ch->dir = dir;
536 	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsz) != 0)
537 		return NULL;
538 	ch->hwch = 1;
539 	if ((dir == PCMDIR_PLAY) && (sc->duplex))
540 		ch->hwch = 2;
541 	return ch;
542 }
543 
544 static int
545 esschan_setformat(kobj_t obj, void *data, u_int32_t format)
546 {
547 	struct ess_chinfo *ch = data;
548 
549 	ch->fmt = format;
550 	return 0;
551 }
552 
553 static u_int32_t
554 esschan_setspeed(kobj_t obj, void *data, u_int32_t speed)
555 {
556 	struct ess_chinfo *ch = data;
557 	struct ess_info *sc = ch->parent;
558 
559 	ch->spd = speed;
560 	if (sc->newspeed)
561 		ess_calcspeed9(&ch->spd);
562 	else
563 		ess_calcspeed8(&ch->spd);
564 	return ch->spd;
565 }
566 
567 static u_int32_t
568 esschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
569 {
570 	struct ess_chinfo *ch = data;
571 
572 	ch->blksz = blocksize;
573 	return ch->blksz;
574 }
575 
576 static int
577 esschan_trigger(kobj_t obj, void *data, int go)
578 {
579 	struct ess_chinfo *ch = data;
580 	struct ess_info *sc = ch->parent;
581 
582 	if (!PCMTRIG_COMMON(go))
583 		return 0;
584 
585 	DEB(printf("esschan_trigger: %d\n",go));
586 
587 	ess_lock(sc);
588 	switch (go) {
589 	case PCMTRIG_START:
590 		ess_dmasetup(sc, ch->hwch, sndbuf_getbufaddr(ch->buffer), sndbuf_getsize(ch->buffer), ch->dir);
591 		ess_dmatrigger(sc, ch->hwch, 1);
592 		ess_start(ch);
593 		break;
594 
595 	case PCMTRIG_STOP:
596 	case PCMTRIG_ABORT:
597 	default:
598 		ess_stop(ch);
599 		break;
600 	}
601 	ess_unlock(sc);
602 	return 0;
603 }
604 
605 static u_int32_t
606 esschan_getptr(kobj_t obj, void *data)
607 {
608 	struct ess_chinfo *ch = data;
609 	struct ess_info *sc = ch->parent;
610 	u_int32_t ret;
611 
612 	ess_lock(sc);
613 	ret = ess_dmapos(sc, ch->hwch);
614 	ess_unlock(sc);
615 	return ret;
616 }
617 
618 static struct pcmchan_caps *
619 esschan_getcaps(kobj_t obj, void *data)
620 {
621 	struct ess_chinfo *ch = data;
622 
623 	return (ch->dir == PCMDIR_PLAY)? &ess_playcaps : &ess_reccaps;
624 }
625 
626 static kobj_method_t esschan_methods[] = {
627     	KOBJMETHOD(channel_init,		esschan_init),
628     	KOBJMETHOD(channel_setformat,		esschan_setformat),
629     	KOBJMETHOD(channel_setspeed,		esschan_setspeed),
630     	KOBJMETHOD(channel_setblocksize,	esschan_setblocksize),
631     	KOBJMETHOD(channel_trigger,		esschan_trigger),
632     	KOBJMETHOD(channel_getptr,		esschan_getptr),
633     	KOBJMETHOD(channel_getcaps,		esschan_getcaps),
634 	KOBJMETHOD_END
635 };
636 CHANNEL_DECLARE(esschan);
637 
638 /************************************************************/
639 
640 static int
641 essmix_init(struct snd_mixer *m)
642 {
643     	struct ess_info *sc = mix_getdevinfo(m);
644 
645 	mix_setrecdevs(m, SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE |
646 			  SOUND_MASK_IMIX);
647 
648 	mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
649 		       SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME |
650 		       SOUND_MASK_LINE1);
651 
652 	ess_setmixer(sc, 0, 0); /* reset */
653 
654 	return 0;
655 }
656 
657 static int
658 essmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
659 {
660     	struct ess_info *sc = mix_getdevinfo(m);
661     	int preg = 0, rreg = 0, l, r;
662 
663 	l = (left * 15) / 100;
664 	r = (right * 15) / 100;
665 	switch (dev) {
666 	case SOUND_MIXER_SYNTH:
667 		preg = 0x36;
668 		rreg = 0x6b;
669 		break;
670 
671 	case SOUND_MIXER_PCM:
672 		preg = 0x14;
673 		rreg = 0x7c;
674 		break;
675 
676 	case SOUND_MIXER_LINE:
677 		preg = 0x3e;
678 		rreg = 0x6e;
679 		break;
680 
681 	case SOUND_MIXER_MIC:
682 		preg = 0x1a;
683 		rreg = 0x68;
684 		break;
685 
686 	case SOUND_MIXER_LINE1:
687 		preg = 0x3a;
688 		rreg = 0x6c;
689 		break;
690 
691 	case SOUND_MIXER_CD:
692 		preg = 0x38;
693 		rreg = 0x6a;
694 		break;
695 
696 	case SOUND_MIXER_VOLUME:
697 		l = left? (left * 63) / 100 : 64;
698 		r = right? (right * 63) / 100 : 64;
699 		ess_setmixer(sc, 0x60, l);
700 		ess_setmixer(sc, 0x62, r);
701 		left = (l == 64)? 0 : (l * 100) / 63;
702 		right = (r == 64)? 0 : (r * 100) / 63;
703     		return left | (right << 8);
704 	}
705 
706 	if (preg)
707 		ess_setmixer(sc, preg, (l << 4) | r);
708 	if (rreg)
709 		ess_setmixer(sc, rreg, (l << 4) | r);
710 
711 	left = (l * 100) / 15;
712 	right = (r * 100) / 15;
713 
714     	return left | (right << 8);
715 }
716 
717 static u_int32_t
718 essmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
719 {
720     	struct ess_info *sc = mix_getdevinfo(m);
721     	u_char recdev;
722 
723     	switch (src) {
724 	case SOUND_MASK_CD:
725 		recdev = 0x02;
726 		break;
727 
728 	case SOUND_MASK_LINE:
729 		recdev = 0x06;
730 		break;
731 
732 	case SOUND_MASK_IMIX:
733 		recdev = 0x05;
734 		break;
735 
736 	case SOUND_MASK_MIC:
737 	default:
738 		recdev = 0x00;
739 		src = SOUND_MASK_MIC;
740 		break;
741 	}
742 
743 	ess_setmixer(sc, 0x1c, recdev);
744 
745 	return src;
746 }
747 
748 static kobj_method_t solomixer_methods[] = {
749     	KOBJMETHOD(mixer_init,		essmix_init),
750     	KOBJMETHOD(mixer_set,		essmix_set),
751     	KOBJMETHOD(mixer_setrecsrc,	essmix_setrecsrc),
752 	KOBJMETHOD_END
753 };
754 MIXER_DECLARE(solomixer);
755 
756 /************************************************************/
757 
758 static int
759 ess_dmasetup(struct ess_info *sc, int ch, u_int32_t base, u_int16_t cnt, int dir)
760 {
761 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
762 	sc->dmasz[ch - 1] = cnt;
763 	if (ch == 1) {
764 		port_wr(sc->vc, 0x8, 0xc4, 1); /* command */
765 		port_wr(sc->vc, 0xd, 0xff, 1); /* reset */
766 		port_wr(sc->vc, 0xf, 0x01, 1); /* mask */
767 		port_wr(sc->vc, 0xb, dir == PCMDIR_PLAY? 0x58 : 0x54, 1); /* mode */
768 		port_wr(sc->vc, 0x0, base, 4);
769 		port_wr(sc->vc, 0x4, cnt - 1, 2);
770 
771 	} else if (ch == 2) {
772 		port_wr(sc->io, 0x6, 0x08, 1); /* autoinit */
773 		port_wr(sc->io, 0x0, base, 4);
774 		port_wr(sc->io, 0x4, cnt, 2);
775 	}
776 	return 0;
777 }
778 
779 static int
780 ess_dmapos(struct ess_info *sc, int ch)
781 {
782 	int p = 0, i = 0, j = 0;
783 
784 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
785 	if (ch == 1) {
786 /*
787  * During recording, this register is known to give back
788  * garbage if it's not quiescent while being read. That's
789  * why we spl, stop the DMA, and try over and over until
790  * adjacent reads are "close", in the right order and not
791  * bigger than is otherwise possible.
792  */
793 		ess_dmatrigger(sc, ch, 0);
794 		DELAY(20);
795 		do {
796 			DELAY(10);
797 			if (j > 1)
798 				printf("DMA count reg bogus: %04x & %04x\n",
799 					i, p);
800 			i = port_rd(sc->vc, 0x4, 2) + 1;
801 			p = port_rd(sc->vc, 0x4, 2) + 1;
802 		} while ((p > sc->dmasz[ch - 1] || i < p || (p - i) > 0x8) && j++ < 1000);
803 		ess_dmatrigger(sc, ch, 1);
804 	}
805 	else if (ch == 2)
806 		p = port_rd(sc->io, 0x4, 2);
807 	return sc->dmasz[ch - 1] - p;
808 }
809 
810 static int
811 ess_dmatrigger(struct ess_info *sc, int ch, int go)
812 {
813 	KASSERT(ch == 1 || ch == 2, ("bad ch"));
814 	if (ch == 1)
815 		port_wr(sc->vc, 0xf, go? 0x00 : 0x01, 1); /* mask */
816 	else if (ch == 2)
817 		port_wr(sc->io, 0x6, 0x08 | (go? 0x02 : 0x00), 1); /* autoinit */
818 	return 0;
819 }
820 
821 static void
822 ess_release_resources(struct ess_info *sc, device_t dev)
823 {
824     	if (sc->irq) {
825 		if (sc->ih)
826 			bus_teardown_intr(dev, sc->irq, sc->ih);
827 		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
828 		sc->irq = NULL;
829     	}
830     	if (sc->io) {
831 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->io);
832 		sc->io = NULL;
833     	}
834 
835     	if (sc->sb) {
836 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(1), sc->sb);
837 		sc->sb = NULL;
838     	}
839 
840     	if (sc->vc) {
841 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(2), sc->vc);
842 		sc->vc = NULL;
843     	}
844 
845     	if (sc->mpu) {
846 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(3), sc->mpu);
847 		sc->mpu = NULL;
848     	}
849 
850     	if (sc->gp) {
851 		bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(4), sc->gp);
852 		sc->gp = NULL;
853     	}
854 
855 	if (sc->parent_dmat) {
856 		bus_dma_tag_destroy(sc->parent_dmat);
857 		sc->parent_dmat = 0;
858     	}
859 
860 	if (sc->lock) {
861 		snd_mtxfree(sc->lock);
862 		sc->lock = NULL;
863 	}
864 
865     	free(sc, M_DEVBUF);
866 }
867 
868 static int
869 ess_alloc_resources(struct ess_info *sc, device_t dev)
870 {
871 	int rid;
872 
873 	rid = PCIR_BAR(0);
874     	sc->io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
875 
876 	rid = PCIR_BAR(1);
877     	sc->sb = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
878 
879 	rid = PCIR_BAR(2);
880     	sc->vc = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
881 
882 	rid = PCIR_BAR(3);
883     	sc->mpu = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
884 
885 	rid = PCIR_BAR(4);
886     	sc->gp = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
887 
888 	rid = 0;
889 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
890 		RF_ACTIVE | RF_SHAREABLE);
891 
892 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_solo softc");
893 
894 	return (sc->irq && sc->io && sc->sb && sc->vc &&
895 				sc->mpu && sc->gp && sc->lock)? 0 : ENXIO;
896 }
897 
898 static int
899 ess_probe(device_t dev)
900 {
901 	char *s = NULL;
902 	u_int32_t subdev;
903 
904 	subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev);
905 	switch (pci_get_devid(dev)) {
906 	case 0x1969125d:
907 		if (subdev == 0x8888125d)
908 			s = "ESS Solo-1E";
909 		else if (subdev == 0x1818125d)
910 			s = "ESS Solo-1";
911 		else
912 			s = "ESS Solo-1 (unknown vendor)";
913 		break;
914 	}
915 
916 	if (s)
917 		device_set_desc(dev, s);
918 	return s ? BUS_PROBE_DEFAULT : ENXIO;
919 }
920 
921 #define ESS_PCI_LEGACYCONTROL       0x40
922 #define ESS_PCI_CONFIG              0x50
923 #define ESS_PCI_DDMACONTROL      	0x60
924 
925 static int
926 ess_suspend(device_t dev)
927 {
928   return 0;
929 }
930 
931 static int
932 ess_resume(device_t dev)
933 {
934 	uint16_t ddma;
935 	struct ess_info *sc = pcm_getdevinfo(dev);
936 
937 	ess_lock(sc);
938 	ddma = rman_get_start(sc->vc) | 1;
939 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
940 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
941 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
942 
943     	if (ess_reset_dsp(sc)) {
944 		ess_unlock(sc);
945 		goto no;
946 	}
947 	ess_unlock(sc);
948     	if (mixer_reinit(dev))
949 		goto no;
950 	ess_lock(sc);
951 	if (sc->newspeed)
952 		ess_setmixer(sc, 0x71, 0x2a);
953 
954 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
955 	ess_unlock(sc);
956 
957 	return 0;
958  no:
959 	return EIO;
960 }
961 
962 static int
963 ess_attach(device_t dev)
964 {
965     	struct ess_info *sc;
966     	char status[SND_STATUSLEN];
967 	u_int16_t ddma;
968 
969 	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
970 	pci_enable_busmaster(dev);
971 
972     	if (ess_alloc_resources(sc, dev))
973 		goto no;
974 
975 	sc->bufsz = pcm_getbuffersize(dev, 4096, SOLO_DEFAULT_BUFSZ, 65536);
976 
977 	ddma = rman_get_start(sc->vc) | 1;
978 	pci_write_config(dev, ESS_PCI_LEGACYCONTROL, 0x805f, 2);
979 	pci_write_config(dev, ESS_PCI_DDMACONTROL, ddma, 2);
980 	pci_write_config(dev, ESS_PCI_CONFIG, 0, 2);
981 
982 	port_wr(sc->io, 0x7, 0xb0, 1); /* enable irqs */
983 #ifdef ESS18XX_DUPLEX
984 	sc->duplex = 1;
985 #else
986 	sc->duplex = 0;
987 #endif
988 
989 #ifdef ESS18XX_NEWSPEED
990 	sc->newspeed = 1;
991 #else
992 	sc->newspeed = 0;
993 #endif
994 	if (snd_setup_intr(dev, sc->irq, INTR_MPSAFE, ess_intr, sc, &sc->ih)) {
995 		device_printf(dev, "unable to map interrupt\n");
996 		goto no;
997 	}
998 
999     	if (!sc->duplex)
1000 		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
1001 
1002 #if 0
1003     	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/65536, /*boundary*/0,
1004 #endif
1005     	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, /*boundary*/0,
1006 			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
1007 			/*highaddr*/BUS_SPACE_MAXADDR,
1008 			/*filter*/NULL, /*filterarg*/NULL,
1009 			/*maxsize*/sc->bufsz, /*nsegments*/1,
1010 			/*maxsegz*/0x3ffff,
1011 			/*flags*/0,
1012 			/*lockfunc*/NULL, /*lockarg*/NULL,
1013 			&sc->parent_dmat) != 0) {
1014 		device_printf(dev, "unable to create dma tag\n");
1015 		goto no;
1016     	}
1017 
1018     	if (ess_reset_dsp(sc))
1019 		goto no;
1020 
1021 	if (sc->newspeed)
1022 		ess_setmixer(sc, 0x71, 0x2a);
1023 
1024     	if (mixer_init(dev, &solomixer_class, sc))
1025 		goto no;
1026 
1027     	snprintf(status, SND_STATUSLEN, "at io 0x%jx,0x%jx,0x%jx irq %jd %s",
1028     	     	rman_get_start(sc->io), rman_get_start(sc->sb), rman_get_start(sc->vc),
1029 		rman_get_start(sc->irq),PCM_KLDSTRING(snd_solo));
1030 
1031     	if (pcm_register(dev, sc, 1, 1))
1032 		goto no;
1033       	pcm_addchan(dev, PCMDIR_REC, &esschan_class, sc);
1034 	pcm_addchan(dev, PCMDIR_PLAY, &esschan_class, sc);
1035 	pcm_setstatus(dev, status);
1036 
1037     	return 0;
1038 
1039 no:
1040     	ess_release_resources(sc, dev);
1041     	return ENXIO;
1042 }
1043 
1044 static int
1045 ess_detach(device_t dev)
1046 {
1047 	int r;
1048 	struct ess_info *sc;
1049 
1050 	r = pcm_unregister(dev);
1051 	if (r)
1052 		return r;
1053 
1054 	sc = pcm_getdevinfo(dev);
1055     	ess_release_resources(sc, dev);
1056 	return 0;
1057 }
1058 
1059 static device_method_t ess_methods[] = {
1060 	/* Device interface */
1061 	DEVMETHOD(device_probe,		ess_probe),
1062 	DEVMETHOD(device_attach,	ess_attach),
1063 	DEVMETHOD(device_detach,	ess_detach),
1064 	DEVMETHOD(device_resume,	ess_resume),
1065 	DEVMETHOD(device_suspend,	ess_suspend),
1066 	{ 0, 0 }
1067 };
1068 
1069 static driver_t ess_driver = {
1070 	"pcm",
1071 	ess_methods,
1072 	PCM_SOFTC_SIZE,
1073 };
1074 
1075 DRIVER_MODULE(snd_solo, pci, ess_driver, 0, 0);
1076 MODULE_DEPEND(snd_solo, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1077 MODULE_VERSION(snd_solo, 1);
1078