xref: /freebsd/sys/dev/sound/pci/t4dwave.c (revision 19261079)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifdef HAVE_KERNEL_OPTION_HEADERS
30 #include "opt_snd.h"
31 #endif
32 
33 #include <dev/sound/pcm/sound.h>
34 #include <dev/sound/pcm/ac97.h>
35 #include <dev/sound/pci/t4dwave.h>
36 
37 #include <dev/pci/pcireg.h>
38 #include <dev/pci/pcivar.h>
39 
40 SND_DECLARE_FILE("$FreeBSD$");
41 
42 /* -------------------------------------------------------------------- */
43 
44 #define TDX_PCI_ID 	0x20001023
45 #define TNX_PCI_ID 	0x20011023
46 #define ALI_PCI_ID	0x545110b9
47 #define SPA_PCI_ID	0x70181039
48 
49 #define TR_DEFAULT_BUFSZ 	0x1000
50 /* For ALi M5451 the DMA transfer size appears to be fixed to 64k. */
51 #define ALI_BUFSZ	0x10000
52 #define TR_BUFALGN	0x8
53 #define TR_TIMEOUT_CDC	0xffff
54 #define TR_MAXHWCH	64
55 #define ALI_MAXHWCH	32
56 #define TR_MAXPLAYCH	4
57 #define ALI_MAXPLAYCH	1
58 /*
59  * Though, it's not clearly documented in the 4DWAVE datasheet, the
60  * DX and NX chips can't handle DMA addresses located above 1GB as the
61  * LBA (loop begin address) register which holds the DMA base address
62  * is 32-bit, but the two MSBs are used for other purposes.
63  */
64 #define TR_MAXADDR	((1U << 30) - 1)
65 #define ALI_MAXADDR	((1U << 31) - 1)
66 
67 struct tr_info;
68 
69 /* channel registers */
70 struct tr_chinfo {
71 	u_int32_t cso, alpha, fms, fmc, ec;
72 	u_int32_t lba;
73 	u_int32_t eso, delta;
74 	u_int32_t rvol, cvol;
75 	u_int32_t gvsel, pan, vol, ctrl;
76 	u_int32_t active:1, was_active:1;
77 	int index, bufhalf;
78 	struct snd_dbuf *buffer;
79 	struct pcm_channel *channel;
80 	struct tr_info *parent;
81 };
82 
83 struct tr_rchinfo {
84 	u_int32_t delta;
85 	u_int32_t active:1, was_active:1;
86 	struct snd_dbuf *buffer;
87 	struct pcm_channel *channel;
88 	struct tr_info *parent;
89 };
90 
91 /* device private data */
92 struct tr_info {
93 	u_int32_t type;
94 	u_int32_t rev;
95 
96 	bus_space_tag_t st;
97 	bus_space_handle_t sh;
98 	bus_dma_tag_t parent_dmat;
99 
100 	struct resource *reg, *irq;
101 	int regtype, regid, irqid;
102 	void *ih;
103 
104 	struct mtx *lock;
105 
106 	u_int32_t hwchns;
107 	u_int32_t playchns;
108 	unsigned int bufsz;
109 
110 	struct tr_chinfo chinfo[TR_MAXPLAYCH];
111 	struct tr_rchinfo recchinfo;
112 };
113 
114 /* -------------------------------------------------------------------- */
115 
116 static u_int32_t tr_recfmt[] = {
117 	SND_FORMAT(AFMT_U8, 1, 0),
118 	SND_FORMAT(AFMT_U8, 2, 0),
119 	SND_FORMAT(AFMT_S8, 1, 0),
120 	SND_FORMAT(AFMT_S8, 2, 0),
121 	SND_FORMAT(AFMT_S16_LE, 1, 0),
122 	SND_FORMAT(AFMT_S16_LE, 2, 0),
123 	SND_FORMAT(AFMT_U16_LE, 1, 0),
124 	SND_FORMAT(AFMT_U16_LE, 2, 0),
125 	0
126 };
127 static struct pcmchan_caps tr_reccaps = {4000, 48000, tr_recfmt, 0};
128 
129 static u_int32_t tr_playfmt[] = {
130 	SND_FORMAT(AFMT_U8, 1, 0),
131 	SND_FORMAT(AFMT_U8, 2, 0),
132 	SND_FORMAT(AFMT_S8, 1, 0),
133 	SND_FORMAT(AFMT_S8, 2, 0),
134 	SND_FORMAT(AFMT_S16_LE, 1, 0),
135 	SND_FORMAT(AFMT_S16_LE, 2, 0),
136 	SND_FORMAT(AFMT_U16_LE, 1, 0),
137 	SND_FORMAT(AFMT_U16_LE, 2, 0),
138 	0
139 };
140 static struct pcmchan_caps tr_playcaps = {4000, 48000, tr_playfmt, 0};
141 
142 /* -------------------------------------------------------------------- */
143 
144 /* Hardware */
145 
146 static u_int32_t
147 tr_rd(struct tr_info *tr, int regno, int size)
148 {
149 	switch(size) {
150 	case 1:
151 		return bus_space_read_1(tr->st, tr->sh, regno);
152 	case 2:
153 		return bus_space_read_2(tr->st, tr->sh, regno);
154 	case 4:
155 		return bus_space_read_4(tr->st, tr->sh, regno);
156 	default:
157 		return 0xffffffff;
158 	}
159 }
160 
161 static void
162 tr_wr(struct tr_info *tr, int regno, u_int32_t data, int size)
163 {
164 	switch(size) {
165 	case 1:
166 		bus_space_write_1(tr->st, tr->sh, regno, data);
167 		break;
168 	case 2:
169 		bus_space_write_2(tr->st, tr->sh, regno, data);
170 		break;
171 	case 4:
172 		bus_space_write_4(tr->st, tr->sh, regno, data);
173 		break;
174 	}
175 }
176 
177 /* -------------------------------------------------------------------- */
178 /* ac97 codec */
179 
180 static int
181 tr_rdcd(kobj_t obj, void *devinfo, int regno)
182 {
183 	struct tr_info *tr = (struct tr_info *)devinfo;
184 	int i, j, treg, trw;
185 
186 	switch (tr->type) {
187 	case SPA_PCI_ID:
188 		treg=SPA_REG_CODECRD;
189 		trw=SPA_CDC_RWSTAT;
190 		break;
191 	case ALI_PCI_ID:
192 		if (tr->rev > 0x01)
193 		  treg=TDX_REG_CODECWR;
194 		else
195 		  treg=TDX_REG_CODECRD;
196 		trw=TDX_CDC_RWSTAT;
197 		break;
198 	case TDX_PCI_ID:
199 		treg=TDX_REG_CODECRD;
200 		trw=TDX_CDC_RWSTAT;
201 		break;
202 	case TNX_PCI_ID:
203 		treg=(regno & 0x100)? TNX_REG_CODEC2RD : TNX_REG_CODEC1RD;
204 		trw=TNX_CDC_RWSTAT;
205 		break;
206 	default:
207 		printf("!!! tr_rdcd defaulted !!!\n");
208 		return -1;
209 	}
210 
211 	i = j = 0;
212 
213 	regno &= 0x7f;
214 	snd_mtxlock(tr->lock);
215 	if (tr->type == ALI_PCI_ID) {
216 		u_int32_t chk1, chk2;
217 		j = trw;
218 		for (i = TR_TIMEOUT_CDC; (i > 0) && (j & trw); i--)
219 			j = tr_rd(tr, treg, 4);
220 		if (i > 0) {
221 			chk1 = tr_rd(tr, 0xc8, 4);
222 			chk2 = tr_rd(tr, 0xc8, 4);
223 			for (i = TR_TIMEOUT_CDC; (i > 0) && (chk1 == chk2);
224 					i--)
225 				chk2 = tr_rd(tr, 0xc8, 4);
226 		}
227 	}
228 	if (tr->type != ALI_PCI_ID || i > 0) {
229 		tr_wr(tr, treg, regno | trw, 4);
230 		j=trw;
231 		for (i=TR_TIMEOUT_CDC; (i > 0) && (j & trw); i--)
232 		       	j=tr_rd(tr, treg, 4);
233 	}
234 	snd_mtxunlock(tr->lock);
235 	if (i == 0) printf("codec timeout during read of register %x\n", regno);
236 	return (j >> TR_CDC_DATA) & 0xffff;
237 }
238 
239 static int
240 tr_wrcd(kobj_t obj, void *devinfo, int regno, u_int32_t data)
241 {
242 	struct tr_info *tr = (struct tr_info *)devinfo;
243 	int i, j, treg, trw;
244 
245 	switch (tr->type) {
246 	case SPA_PCI_ID:
247 		treg=SPA_REG_CODECWR;
248 		trw=SPA_CDC_RWSTAT;
249 		break;
250 	case ALI_PCI_ID:
251 	case TDX_PCI_ID:
252 		treg=TDX_REG_CODECWR;
253 		trw=TDX_CDC_RWSTAT;
254 		break;
255 	case TNX_PCI_ID:
256 		treg=TNX_REG_CODECWR;
257 		trw=TNX_CDC_RWSTAT | ((regno & 0x100)? TNX_CDC_SEC : 0);
258 		break;
259 	default:
260 		printf("!!! tr_wrcd defaulted !!!");
261 		return -1;
262 	}
263 
264 	i = 0;
265 
266 	regno &= 0x7f;
267 #if 0
268 	printf("tr_wrcd: reg %x was %x", regno, tr_rdcd(devinfo, regno));
269 #endif
270 	j=trw;
271 	snd_mtxlock(tr->lock);
272 	if (tr->type == ALI_PCI_ID) {
273 		j = trw;
274 		for (i = TR_TIMEOUT_CDC; (i > 0) && (j & trw); i--)
275 			j = tr_rd(tr, treg, 4);
276 		if (i > 0) {
277 			u_int32_t chk1, chk2;
278 			chk1 = tr_rd(tr, 0xc8, 4);
279 			chk2 = tr_rd(tr, 0xc8, 4);
280 			for (i = TR_TIMEOUT_CDC; (i > 0) && (chk1 == chk2);
281 					i--)
282 				chk2 = tr_rd(tr, 0xc8, 4);
283 		}
284 	}
285 	if (tr->type != ALI_PCI_ID || i > 0) {
286 		for (i=TR_TIMEOUT_CDC; (i>0) && (j & trw); i--)
287 			j=tr_rd(tr, treg, 4);
288 		if (tr->type == ALI_PCI_ID && tr->rev > 0x01)
289 		      	trw |= 0x0100;
290 		tr_wr(tr, treg, (data << TR_CDC_DATA) | regno | trw, 4);
291 	}
292 #if 0
293 	printf(" - wrote %x, now %x\n", data, tr_rdcd(devinfo, regno));
294 #endif
295 	snd_mtxunlock(tr->lock);
296 	if (i==0) printf("codec timeout writing %x, data %x\n", regno, data);
297 	return (i > 0)? 0 : -1;
298 }
299 
300 static kobj_method_t tr_ac97_methods[] = {
301     	KOBJMETHOD(ac97_read,		tr_rdcd),
302     	KOBJMETHOD(ac97_write,		tr_wrcd),
303 	KOBJMETHOD_END
304 };
305 AC97_DECLARE(tr_ac97);
306 
307 /* -------------------------------------------------------------------- */
308 /* playback channel interrupts */
309 
310 #if 0
311 static u_int32_t
312 tr_testint(struct tr_chinfo *ch)
313 {
314 	struct tr_info *tr = ch->parent;
315 	int bank, chan;
316 
317 	bank = (ch->index & 0x20) ? 1 : 0;
318 	chan = ch->index & 0x1f;
319 	return tr_rd(tr, bank? TR_REG_ADDRINTB : TR_REG_ADDRINTA, 4) & (1 << chan);
320 }
321 #endif
322 
323 static void
324 tr_clrint(struct tr_chinfo *ch)
325 {
326 	struct tr_info *tr = ch->parent;
327 	int bank, chan;
328 
329 	bank = (ch->index & 0x20) ? 1 : 0;
330 	chan = ch->index & 0x1f;
331 	tr_wr(tr, bank? TR_REG_ADDRINTB : TR_REG_ADDRINTA, 1 << chan, 4);
332 }
333 
334 static void
335 tr_enaint(struct tr_chinfo *ch, int enable)
336 {
337 	struct tr_info *tr = ch->parent;
338        	u_int32_t i, reg;
339 	int bank, chan;
340 
341 	snd_mtxlock(tr->lock);
342 	bank = (ch->index & 0x20) ? 1 : 0;
343 	chan = ch->index & 0x1f;
344 	reg = bank? TR_REG_INTENB : TR_REG_INTENA;
345 
346 	i = tr_rd(tr, reg, 4);
347 	i &= ~(1 << chan);
348 	i |= (enable? 1 : 0) << chan;
349 
350 	tr_clrint(ch);
351 	tr_wr(tr, reg, i, 4);
352 	snd_mtxunlock(tr->lock);
353 }
354 
355 /* playback channels */
356 
357 static void
358 tr_selch(struct tr_chinfo *ch)
359 {
360 	struct tr_info *tr = ch->parent;
361 	int i;
362 
363 	i = tr_rd(tr, TR_REG_CIR, 4);
364 	i &= ~TR_CIR_MASK;
365 	i |= ch->index & 0x3f;
366 	tr_wr(tr, TR_REG_CIR, i, 4);
367 }
368 
369 static void
370 tr_startch(struct tr_chinfo *ch)
371 {
372 	struct tr_info *tr = ch->parent;
373 	int bank, chan;
374 
375 	bank = (ch->index & 0x20) ? 1 : 0;
376 	chan = ch->index & 0x1f;
377 	tr_wr(tr, bank? TR_REG_STARTB : TR_REG_STARTA, 1 << chan, 4);
378 }
379 
380 static void
381 tr_stopch(struct tr_chinfo *ch)
382 {
383 	struct tr_info *tr = ch->parent;
384 	int bank, chan;
385 
386 	bank = (ch->index & 0x20) ? 1 : 0;
387 	chan = ch->index & 0x1f;
388 	tr_wr(tr, bank? TR_REG_STOPB : TR_REG_STOPA, 1 << chan, 4);
389 }
390 
391 static void
392 tr_wrch(struct tr_chinfo *ch)
393 {
394 	struct tr_info *tr = ch->parent;
395 	u_int32_t cr[TR_CHN_REGS], i;
396 
397 	ch->gvsel 	&= 0x00000001;
398 	ch->fmc		&= 0x00000003;
399 	ch->fms		&= 0x0000000f;
400 	ch->ctrl	&= 0x0000000f;
401 	ch->pan 	&= 0x0000007f;
402 	ch->rvol	&= 0x0000007f;
403 	ch->cvol 	&= 0x0000007f;
404 	ch->vol		&= 0x000000ff;
405 	ch->ec		&= 0x00000fff;
406 	ch->alpha	&= 0x00000fff;
407 	ch->delta	&= 0x0000ffff;
408 	if (tr->type == ALI_PCI_ID)
409 		ch->lba &= ALI_MAXADDR;
410 	else
411 		ch->lba &= TR_MAXADDR;
412 
413 	cr[1]=ch->lba;
414 	cr[3]=(ch->fmc<<14) | (ch->rvol<<7) | (ch->cvol);
415 	cr[4]=(ch->gvsel<<31) | (ch->pan<<24) | (ch->vol<<16) | (ch->ctrl<<12) | (ch->ec);
416 
417 	switch (tr->type) {
418 	case SPA_PCI_ID:
419 	case ALI_PCI_ID:
420 	case TDX_PCI_ID:
421 		ch->cso &= 0x0000ffff;
422 		ch->eso &= 0x0000ffff;
423 		cr[0]=(ch->cso<<16) | (ch->alpha<<4) | (ch->fms);
424 		cr[2]=(ch->eso<<16) | (ch->delta);
425 		break;
426 	case TNX_PCI_ID:
427 		ch->cso &= 0x00ffffff;
428 		ch->eso &= 0x00ffffff;
429 		cr[0]=((ch->delta & 0xff)<<24) | (ch->cso);
430 		cr[2]=((ch->delta>>8)<<24) | (ch->eso);
431 		cr[3]|=(ch->alpha<<20) | (ch->fms<<16) | (ch->fmc<<14);
432 		break;
433 	}
434 	snd_mtxlock(tr->lock);
435 	tr_selch(ch);
436 	for (i=0; i<TR_CHN_REGS; i++)
437 		tr_wr(tr, TR_REG_CHNBASE+(i<<2), cr[i], 4);
438 	snd_mtxunlock(tr->lock);
439 }
440 
441 static void
442 tr_rdch(struct tr_chinfo *ch)
443 {
444 	struct tr_info *tr = ch->parent;
445 	u_int32_t cr[5], i;
446 
447 	snd_mtxlock(tr->lock);
448 	tr_selch(ch);
449 	for (i=0; i<5; i++)
450 		cr[i]=tr_rd(tr, TR_REG_CHNBASE+(i<<2), 4);
451 	snd_mtxunlock(tr->lock);
452 
453 	if (tr->type == ALI_PCI_ID)
454 		ch->lba=(cr[1] & ALI_MAXADDR);
455 	else
456 		ch->lba=(cr[1] & TR_MAXADDR);
457 	ch->fmc=	(cr[3] & 0x0000c000) >> 14;
458 	ch->rvol=	(cr[3] & 0x00003f80) >> 7;
459 	ch->cvol=	(cr[3] & 0x0000007f);
460 	ch->gvsel=	(cr[4] & 0x80000000) >> 31;
461 	ch->pan=	(cr[4] & 0x7f000000) >> 24;
462 	ch->vol=	(cr[4] & 0x00ff0000) >> 16;
463 	ch->ctrl=	(cr[4] & 0x0000f000) >> 12;
464 	ch->ec=		(cr[4] & 0x00000fff);
465 	switch(tr->type) {
466 	case SPA_PCI_ID:
467 	case ALI_PCI_ID:
468 	case TDX_PCI_ID:
469 		ch->cso=	(cr[0] & 0xffff0000) >> 16;
470 		ch->alpha=	(cr[0] & 0x0000fff0) >> 4;
471 		ch->fms=	(cr[0] & 0x0000000f);
472 		ch->eso=	(cr[2] & 0xffff0000) >> 16;
473 		ch->delta=	(cr[2] & 0x0000ffff);
474 		break;
475 	case TNX_PCI_ID:
476 		ch->cso=	(cr[0] & 0x00ffffff);
477 		ch->eso=	(cr[2] & 0x00ffffff);
478 		ch->delta=	((cr[2] & 0xff000000) >> 16) | ((cr[0] & 0xff000000) >> 24);
479 		ch->alpha=	(cr[3] & 0xfff00000) >> 20;
480 		ch->fms=	(cr[3] & 0x000f0000) >> 16;
481 		break;
482 	}
483 }
484 
485 static u_int32_t
486 tr_fmttobits(u_int32_t fmt)
487 {
488 	u_int32_t bits;
489 
490 	bits = 0;
491 	bits |= (fmt & AFMT_SIGNED)? 0x2 : 0;
492 	bits |= (AFMT_CHANNEL(fmt) > 1)? 0x4 : 0;
493 	bits |= (fmt & AFMT_16BIT)? 0x8 : 0;
494 
495 	return bits;
496 }
497 
498 /* -------------------------------------------------------------------- */
499 /* channel interface */
500 
501 static void *
502 trpchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
503 {
504 	struct tr_info *tr = devinfo;
505 	struct tr_chinfo *ch;
506 
507 	KASSERT(dir == PCMDIR_PLAY, ("trpchan_init: bad direction"));
508 	ch = &tr->chinfo[tr->playchns];
509 	ch->index = tr->playchns++;
510 	ch->buffer = b;
511 	ch->parent = tr;
512 	ch->channel = c;
513 	if (sndbuf_alloc(ch->buffer, tr->parent_dmat, 0, tr->bufsz) != 0)
514 		return NULL;
515 
516 	return ch;
517 }
518 
519 static int
520 trpchan_setformat(kobj_t obj, void *data, u_int32_t format)
521 {
522 	struct tr_chinfo *ch = data;
523 
524 	ch->ctrl = tr_fmttobits(format) | 0x01;
525 
526 	return 0;
527 }
528 
529 static u_int32_t
530 trpchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
531 {
532 	struct tr_chinfo *ch = data;
533 
534 	ch->delta = (speed << 12) / 48000;
535 	return (ch->delta * 48000) >> 12;
536 }
537 
538 static u_int32_t
539 trpchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
540 {
541 	struct tr_chinfo *ch = data;
542 
543 	sndbuf_resize(ch->buffer, 2, blocksize);
544 	return blocksize;
545 }
546 
547 static int
548 trpchan_trigger(kobj_t obj, void *data, int go)
549 {
550 	struct tr_chinfo *ch = data;
551 
552 	if (!PCMTRIG_COMMON(go))
553 		return 0;
554 
555 	if (go == PCMTRIG_START) {
556 		ch->fmc = 3;
557 		ch->fms = 0;
558 		ch->ec = 0;
559 		ch->alpha = 0;
560 		ch->lba = sndbuf_getbufaddr(ch->buffer);
561 		ch->cso = 0;
562 		ch->eso = (sndbuf_getsize(ch->buffer) / sndbuf_getalign(ch->buffer)) - 1;
563 		ch->rvol = ch->cvol = 0x7f;
564 		ch->gvsel = 0;
565 		ch->pan = 0;
566 		ch->vol = 0;
567 		ch->bufhalf = 0;
568    		tr_wrch(ch);
569 		tr_enaint(ch, 1);
570 		tr_startch(ch);
571 		ch->active = 1;
572 	} else {
573 		tr_stopch(ch);
574 		ch->active = 0;
575 	}
576 
577 	return 0;
578 }
579 
580 static u_int32_t
581 trpchan_getptr(kobj_t obj, void *data)
582 {
583 	struct tr_chinfo *ch = data;
584 
585 	tr_rdch(ch);
586 	return ch->cso * sndbuf_getalign(ch->buffer);
587 }
588 
589 static struct pcmchan_caps *
590 trpchan_getcaps(kobj_t obj, void *data)
591 {
592 	return &tr_playcaps;
593 }
594 
595 static kobj_method_t trpchan_methods[] = {
596     	KOBJMETHOD(channel_init,		trpchan_init),
597     	KOBJMETHOD(channel_setformat,		trpchan_setformat),
598     	KOBJMETHOD(channel_setspeed,		trpchan_setspeed),
599     	KOBJMETHOD(channel_setblocksize,	trpchan_setblocksize),
600     	KOBJMETHOD(channel_trigger,		trpchan_trigger),
601     	KOBJMETHOD(channel_getptr,		trpchan_getptr),
602     	KOBJMETHOD(channel_getcaps,		trpchan_getcaps),
603 	KOBJMETHOD_END
604 };
605 CHANNEL_DECLARE(trpchan);
606 
607 /* -------------------------------------------------------------------- */
608 /* rec channel interface */
609 
610 static void *
611 trrchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
612 {
613 	struct tr_info *tr = devinfo;
614 	struct tr_rchinfo *ch;
615 
616 	KASSERT(dir == PCMDIR_REC, ("trrchan_init: bad direction"));
617 	ch = &tr->recchinfo;
618 	ch->buffer = b;
619 	ch->parent = tr;
620 	ch->channel = c;
621 	if (sndbuf_alloc(ch->buffer, tr->parent_dmat, 0, tr->bufsz) != 0)
622 		return NULL;
623 
624 	return ch;
625 }
626 
627 static int
628 trrchan_setformat(kobj_t obj, void *data, u_int32_t format)
629 {
630 	struct tr_rchinfo *ch = data;
631 	struct tr_info *tr = ch->parent;
632 	u_int32_t i, bits;
633 
634 	bits = tr_fmttobits(format);
635 	/* set # of samples between interrupts */
636 	i = (sndbuf_runsz(ch->buffer) >> ((bits & 0x08)? 1 : 0)) - 1;
637 	tr_wr(tr, TR_REG_SBBL, i | (i << 16), 4);
638 	/* set sample format */
639 	i = 0x18 | (bits << 4);
640 	tr_wr(tr, TR_REG_SBCTRL, i, 1);
641 
642 	return 0;
643 }
644 
645 static u_int32_t
646 trrchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
647 {
648 	struct tr_rchinfo *ch = data;
649 	struct tr_info *tr = ch->parent;
650 
651 	/* setup speed */
652 	ch->delta = (48000 << 12) / speed;
653 	tr_wr(tr, TR_REG_SBDELTA, ch->delta, 2);
654 
655 	/* return closest possible speed */
656 	return (48000 << 12) / ch->delta;
657 }
658 
659 static u_int32_t
660 trrchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
661 {
662 	struct tr_rchinfo *ch = data;
663 
664 	sndbuf_resize(ch->buffer, 2, blocksize);
665 
666 	return blocksize;
667 }
668 
669 static int
670 trrchan_trigger(kobj_t obj, void *data, int go)
671 {
672 	struct tr_rchinfo *ch = data;
673 	struct tr_info *tr = ch->parent;
674 	u_int32_t i;
675 
676 	if (!PCMTRIG_COMMON(go))
677 		return 0;
678 
679 	if (go == PCMTRIG_START) {
680 		/* set up dma mode regs */
681 		tr_wr(tr, TR_REG_DMAR15, 0, 1);
682 		i = tr_rd(tr, TR_REG_DMAR11, 1) & 0x03;
683 		tr_wr(tr, TR_REG_DMAR11, i | 0x54, 1);
684 		/* set up base address */
685 	   	tr_wr(tr, TR_REG_DMAR0, sndbuf_getbufaddr(ch->buffer), 4);
686 		/* set up buffer size */
687 		i = tr_rd(tr, TR_REG_DMAR4, 4) & ~0x00ffffff;
688 		tr_wr(tr, TR_REG_DMAR4, i | (sndbuf_runsz(ch->buffer) - 1), 4);
689 		/* start */
690 		tr_wr(tr, TR_REG_SBCTRL, tr_rd(tr, TR_REG_SBCTRL, 1) | 1, 1);
691 		ch->active = 1;
692 	} else {
693 		tr_wr(tr, TR_REG_SBCTRL, tr_rd(tr, TR_REG_SBCTRL, 1) & ~7, 1);
694 		ch->active = 0;
695 	}
696 
697 	/* return 0 if ok */
698 	return 0;
699 }
700 
701 static u_int32_t
702 trrchan_getptr(kobj_t obj, void *data)
703 {
704  	struct tr_rchinfo *ch = data;
705 	struct tr_info *tr = ch->parent;
706 
707 	/* return current byte offset of channel */
708 	return tr_rd(tr, TR_REG_DMAR0, 4) - sndbuf_getbufaddr(ch->buffer);
709 }
710 
711 static struct pcmchan_caps *
712 trrchan_getcaps(kobj_t obj, void *data)
713 {
714 	return &tr_reccaps;
715 }
716 
717 static kobj_method_t trrchan_methods[] = {
718     	KOBJMETHOD(channel_init,		trrchan_init),
719     	KOBJMETHOD(channel_setformat,		trrchan_setformat),
720     	KOBJMETHOD(channel_setspeed,		trrchan_setspeed),
721     	KOBJMETHOD(channel_setblocksize,	trrchan_setblocksize),
722     	KOBJMETHOD(channel_trigger,		trrchan_trigger),
723     	KOBJMETHOD(channel_getptr,		trrchan_getptr),
724     	KOBJMETHOD(channel_getcaps,		trrchan_getcaps),
725 	KOBJMETHOD_END
726 };
727 CHANNEL_DECLARE(trrchan);
728 
729 /* -------------------------------------------------------------------- */
730 /* The interrupt handler */
731 
732 static void
733 tr_intr(void *p)
734 {
735 	struct tr_info *tr = (struct tr_info *)p;
736 	struct tr_chinfo *ch;
737 	u_int32_t active, mask, bufhalf, chnum, intsrc;
738 	int tmp;
739 
740 	intsrc = tr_rd(tr, TR_REG_MISCINT, 4);
741 	if (intsrc & TR_INT_ADDR) {
742 		chnum = 0;
743 		while (chnum < tr->hwchns) {
744 			mask = 0x00000001;
745 			active = tr_rd(tr, (chnum < 32)? TR_REG_ADDRINTA : TR_REG_ADDRINTB, 4);
746 			bufhalf = tr_rd(tr, (chnum < 32)? TR_REG_CSPF_A : TR_REG_CSPF_B, 4);
747 			if (active) {
748 				do {
749 					if (active & mask) {
750 						tmp = (bufhalf & mask)? 1 : 0;
751 						if (chnum < tr->playchns) {
752 							ch = &tr->chinfo[chnum];
753 							/* printf("%d @ %d, ", chnum, trpchan_getptr(NULL, ch)); */
754 							if (ch->bufhalf != tmp) {
755 								chn_intr(ch->channel);
756 								ch->bufhalf = tmp;
757 							}
758 						}
759 					}
760 					chnum++;
761 					mask <<= 1;
762 				} while (chnum & 31);
763 			} else
764 				chnum += 32;
765 
766 			tr_wr(tr, (chnum <= 32)? TR_REG_ADDRINTA : TR_REG_ADDRINTB, active, 4);
767 		}
768 	}
769 	if (intsrc & TR_INT_SB) {
770 		chn_intr(tr->recchinfo.channel);
771 		tr_rd(tr, TR_REG_SBR9, 1);
772 		tr_rd(tr, TR_REG_SBR10, 1);
773 	}
774 }
775 
776 /* -------------------------------------------------------------------- */
777 
778 /*
779  * Probe and attach the card
780  */
781 
782 static int
783 tr_init(struct tr_info *tr)
784 {
785 	switch (tr->type) {
786 	case SPA_PCI_ID:
787 		tr_wr(tr, SPA_REG_GPIO, 0, 4);
788 		tr_wr(tr, SPA_REG_CODECST, SPA_RST_OFF, 4);
789 		break;
790 	case TDX_PCI_ID:
791 		tr_wr(tr, TDX_REG_CODECST, TDX_CDC_ON, 4);
792 		break;
793 	case TNX_PCI_ID:
794 		tr_wr(tr, TNX_REG_CODECST, TNX_CDC_ON, 4);
795 		break;
796 	}
797 
798 	tr_wr(tr, TR_REG_CIR, TR_CIR_MIDENA | TR_CIR_ADDRENA, 4);
799 	return 0;
800 }
801 
802 static int
803 tr_pci_probe(device_t dev)
804 {
805 	switch (pci_get_devid(dev)) {
806 		case SPA_PCI_ID:
807 			device_set_desc(dev, "SiS 7018");
808 			return BUS_PROBE_DEFAULT;
809 		case ALI_PCI_ID:
810 			device_set_desc(dev, "Acer Labs M5451");
811 			return BUS_PROBE_DEFAULT;
812 		case TDX_PCI_ID:
813 			device_set_desc(dev, "Trident 4DWave DX");
814 			return BUS_PROBE_DEFAULT;
815 		case TNX_PCI_ID:
816 			device_set_desc(dev, "Trident 4DWave NX");
817 			return BUS_PROBE_DEFAULT;
818 	}
819 
820 	return ENXIO;
821 }
822 
823 static int
824 tr_pci_attach(device_t dev)
825 {
826 	struct tr_info *tr;
827 	struct ac97_info *codec = NULL;
828 	bus_addr_t	lowaddr;
829 	int		i, dacn;
830 	char 		status[SND_STATUSLEN];
831 
832 	tr = malloc(sizeof(*tr), M_DEVBUF, M_WAITOK | M_ZERO);
833 	tr->type = pci_get_devid(dev);
834 	tr->rev = pci_get_revid(dev);
835 	tr->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_t4dwave softc");
836 
837 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
838 	    "dac", &i) == 0) {
839 	    	if (i < 1)
840 			dacn = 1;
841 		else if (i > TR_MAXPLAYCH)
842 			dacn = TR_MAXPLAYCH;
843 		else
844 			dacn = i;
845 	} else {
846 		switch (tr->type) {
847 		case ALI_PCI_ID:
848 			dacn = ALI_MAXPLAYCH;
849 			break;
850 		default:
851 			dacn = TR_MAXPLAYCH;
852 			break;
853 		}
854 	}
855 
856 	pci_enable_busmaster(dev);
857 
858 	tr->regid = PCIR_BAR(0);
859 	tr->regtype = SYS_RES_IOPORT;
860 	tr->reg = bus_alloc_resource_any(dev, tr->regtype, &tr->regid,
861 		RF_ACTIVE);
862 	if (tr->reg) {
863 		tr->st = rman_get_bustag(tr->reg);
864 		tr->sh = rman_get_bushandle(tr->reg);
865 	} else {
866 		device_printf(dev, "unable to map register space\n");
867 		goto bad;
868 	}
869 
870 	if (tr_init(tr) == -1) {
871 		device_printf(dev, "unable to initialize the card\n");
872 		goto bad;
873 	}
874 	tr->playchns = 0;
875 
876 	codec = AC97_CREATE(dev, tr, tr_ac97);
877 	if (codec == NULL) goto bad;
878 	if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto bad;
879 
880 	tr->irqid = 0;
881 	tr->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &tr->irqid,
882 				 RF_ACTIVE | RF_SHAREABLE);
883 	if (!tr->irq || snd_setup_intr(dev, tr->irq, 0, tr_intr, tr, &tr->ih)) {
884 		device_printf(dev, "unable to map interrupt\n");
885 		goto bad;
886 	}
887 
888 	if (tr->type == ALI_PCI_ID) {
889 		/*
890 		 * The M5451 generates 31 bit of DMA and in order to do
891 		 * 32-bit DMA, the 31st bit can be set via its accompanying
892 		 * ISA bridge.  Note that we can't predict whether bus_dma(9)
893 		 * will actually supply us with a 32-bit buffer and even when
894 		 * using a low address of BUS_SPACE_MAXADDR_32BIT for both
895 		 * we might end up with the play buffer being in the 32-bit
896 		 * range while the record buffer isn't or vice versa. So we
897 		 * don't enabling the 31st bit.
898 		 */
899 		lowaddr = ALI_MAXADDR;
900 		tr->hwchns = ALI_MAXHWCH;
901 		tr->bufsz = ALI_BUFSZ;
902 	} else {
903 		lowaddr = TR_MAXADDR;
904 		tr->hwchns = TR_MAXHWCH;
905 		tr->bufsz = pcm_getbuffersize(dev, 4096, TR_DEFAULT_BUFSZ,
906 		    65536);
907 	}
908 
909 	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev),
910 		/*alignment*/TR_BUFALGN,
911 		/*boundary*/0,
912 		/*lowaddr*/lowaddr,
913 		/*highaddr*/BUS_SPACE_MAXADDR,
914 		/*filter*/NULL, /*filterarg*/NULL,
915 		/*maxsize*/tr->bufsz, /*nsegments*/1, /*maxsegz*/tr->bufsz,
916 		/*flags*/0, /*lockfunc*/NULL, /*lockarg*/NULL,
917 		&tr->parent_dmat) != 0) {
918 		device_printf(dev, "unable to create dma tag\n");
919 		goto bad;
920 	}
921 
922 	snprintf(status, 64, "at io 0x%jx irq %jd %s",
923 		 rman_get_start(tr->reg), rman_get_start(tr->irq),PCM_KLDSTRING(snd_t4dwave));
924 
925 	if (pcm_register(dev, tr, dacn, 1))
926 		goto bad;
927 	pcm_addchan(dev, PCMDIR_REC, &trrchan_class, tr);
928 	for (i = 0; i < dacn; i++)
929 		pcm_addchan(dev, PCMDIR_PLAY, &trpchan_class, tr);
930 	pcm_setstatus(dev, status);
931 
932 	return 0;
933 
934 bad:
935 	if (codec) ac97_destroy(codec);
936 	if (tr->reg) bus_release_resource(dev, tr->regtype, tr->regid, tr->reg);
937 	if (tr->ih) bus_teardown_intr(dev, tr->irq, tr->ih);
938 	if (tr->irq) bus_release_resource(dev, SYS_RES_IRQ, tr->irqid, tr->irq);
939 	if (tr->parent_dmat) bus_dma_tag_destroy(tr->parent_dmat);
940 	if (tr->lock) snd_mtxfree(tr->lock);
941 	free(tr, M_DEVBUF);
942 	return ENXIO;
943 }
944 
945 static int
946 tr_pci_detach(device_t dev)
947 {
948 	int r;
949 	struct tr_info *tr;
950 
951 	r = pcm_unregister(dev);
952 	if (r)
953 		return r;
954 
955 	tr = pcm_getdevinfo(dev);
956 	bus_release_resource(dev, tr->regtype, tr->regid, tr->reg);
957 	bus_teardown_intr(dev, tr->irq, tr->ih);
958 	bus_release_resource(dev, SYS_RES_IRQ, tr->irqid, tr->irq);
959 	bus_dma_tag_destroy(tr->parent_dmat);
960 	snd_mtxfree(tr->lock);
961 	free(tr, M_DEVBUF);
962 
963 	return 0;
964 }
965 
966 static int
967 tr_pci_suspend(device_t dev)
968 {
969 	int i;
970 	struct tr_info *tr;
971 
972 	tr = pcm_getdevinfo(dev);
973 
974 	for (i = 0; i < tr->playchns; i++) {
975 		tr->chinfo[i].was_active = tr->chinfo[i].active;
976 		if (tr->chinfo[i].active) {
977 			trpchan_trigger(NULL, &tr->chinfo[i], PCMTRIG_STOP);
978 		}
979 	}
980 
981 	tr->recchinfo.was_active = tr->recchinfo.active;
982 	if (tr->recchinfo.active) {
983 		trrchan_trigger(NULL, &tr->recchinfo, PCMTRIG_STOP);
984 	}
985 
986 	return 0;
987 }
988 
989 static int
990 tr_pci_resume(device_t dev)
991 {
992 	int i;
993 	struct tr_info *tr;
994 
995 	tr = pcm_getdevinfo(dev);
996 
997 	if (tr_init(tr) == -1) {
998 		device_printf(dev, "unable to initialize the card\n");
999 		return ENXIO;
1000 	}
1001 
1002 	if (mixer_reinit(dev) == -1) {
1003 		device_printf(dev, "unable to initialize the mixer\n");
1004 		return ENXIO;
1005 	}
1006 
1007 	for (i = 0; i < tr->playchns; i++) {
1008 		if (tr->chinfo[i].was_active) {
1009 			trpchan_trigger(NULL, &tr->chinfo[i], PCMTRIG_START);
1010 		}
1011 	}
1012 
1013 	if (tr->recchinfo.was_active) {
1014 		trrchan_trigger(NULL, &tr->recchinfo, PCMTRIG_START);
1015 	}
1016 
1017 	return 0;
1018 }
1019 
1020 static device_method_t tr_methods[] = {
1021 	/* Device interface */
1022 	DEVMETHOD(device_probe,		tr_pci_probe),
1023 	DEVMETHOD(device_attach,	tr_pci_attach),
1024 	DEVMETHOD(device_detach,	tr_pci_detach),
1025 	DEVMETHOD(device_suspend,	tr_pci_suspend),
1026 	DEVMETHOD(device_resume,	tr_pci_resume),
1027 	{ 0, 0 }
1028 };
1029 
1030 static driver_t tr_driver = {
1031 	"pcm",
1032 	tr_methods,
1033 	PCM_SOFTC_SIZE,
1034 };
1035 
1036 DRIVER_MODULE(snd_t4dwave, pci, tr_driver, pcm_devclass, 0, 0);
1037 MODULE_DEPEND(snd_t4dwave, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1038 MODULE_VERSION(snd_t4dwave, 1);
1039