xref: /freebsd/sys/dev/sound/pci/t4dwave.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /*-
2  * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <dev/sound/pcm/sound.h>
28 #include <dev/sound/pcm/ac97.h>
29 #include <dev/sound/pci/t4dwave.h>
30 
31 #include <dev/pci/pcireg.h>
32 #include <dev/pci/pcivar.h>
33 
34 SND_DECLARE_FILE("$FreeBSD$");
35 
36 /* -------------------------------------------------------------------- */
37 
38 #define TDX_PCI_ID 	0x20001023
39 #define TNX_PCI_ID 	0x20011023
40 #define ALI_PCI_ID	0x545110b9
41 #define SPA_PCI_ID	0x70181039
42 
43 #define TR_DEFAULT_BUFSZ 	0x1000
44 #define TR_TIMEOUT_CDC	0xffff
45 #define TR_MAXPLAYCH	4
46 /*
47  * Though, it's not clearly documented in trident datasheet, trident
48  * audio cards can't handle DMA addresses located above 1GB. The LBA
49  * (loop begin address) register which holds DMA base address is 32bits
50  * register.
51  * But the MSB 2bits are used for other purposes(I guess it is really
52  * bad idea). This effectivly limits the DMA address space up to 1GB.
53  */
54 #define TR_MAXADDR	((1 << 30) - 1)
55 
56 
57 struct tr_info;
58 
59 /* channel registers */
60 struct tr_chinfo {
61 	u_int32_t cso, alpha, fms, fmc, ec;
62 	u_int32_t lba;
63 	u_int32_t eso, delta;
64 	u_int32_t rvol, cvol;
65 	u_int32_t gvsel, pan, vol, ctrl;
66 	u_int32_t active:1, was_active:1;
67 	int index, bufhalf;
68 	struct snd_dbuf *buffer;
69 	struct pcm_channel *channel;
70 	struct tr_info *parent;
71 };
72 
73 struct tr_rchinfo {
74 	u_int32_t delta;
75 	u_int32_t active:1, was_active:1;
76 	struct snd_dbuf *buffer;
77 	struct pcm_channel *channel;
78 	struct tr_info *parent;
79 };
80 
81 /* device private data */
82 struct tr_info {
83 	u_int32_t type;
84 	u_int32_t rev;
85 
86 	bus_space_tag_t st;
87 	bus_space_handle_t sh;
88 	bus_dma_tag_t parent_dmat;
89 
90 	struct resource *reg, *irq;
91 	int regtype, regid, irqid;
92 	void *ih;
93 
94 	struct mtx *lock;
95 
96 	u_int32_t playchns;
97 	unsigned int bufsz;
98 
99 	struct tr_chinfo chinfo[TR_MAXPLAYCH];
100 	struct tr_rchinfo recchinfo;
101 };
102 
103 /* -------------------------------------------------------------------- */
104 
105 static u_int32_t tr_recfmt[] = {
106 	AFMT_U8,
107 	AFMT_STEREO | AFMT_U8,
108 	AFMT_S8,
109 	AFMT_STEREO | AFMT_S8,
110 	AFMT_S16_LE,
111 	AFMT_STEREO | AFMT_S16_LE,
112 	AFMT_U16_LE,
113 	AFMT_STEREO | AFMT_U16_LE,
114 	0
115 };
116 static struct pcmchan_caps tr_reccaps = {4000, 48000, tr_recfmt, 0};
117 
118 static u_int32_t tr_playfmt[] = {
119 	AFMT_U8,
120 	AFMT_STEREO | AFMT_U8,
121 	AFMT_S8,
122 	AFMT_STEREO | AFMT_S8,
123 	AFMT_S16_LE,
124 	AFMT_STEREO | AFMT_S16_LE,
125 	AFMT_U16_LE,
126 	AFMT_STEREO | AFMT_U16_LE,
127 	0
128 };
129 static struct pcmchan_caps tr_playcaps = {4000, 48000, tr_playfmt, 0};
130 
131 /* -------------------------------------------------------------------- */
132 
133 /* Hardware */
134 
135 static u_int32_t
136 tr_rd(struct tr_info *tr, int regno, int size)
137 {
138 	switch(size) {
139 	case 1:
140 		return bus_space_read_1(tr->st, tr->sh, regno);
141 	case 2:
142 		return bus_space_read_2(tr->st, tr->sh, regno);
143 	case 4:
144 		return bus_space_read_4(tr->st, tr->sh, regno);
145 	default:
146 		return 0xffffffff;
147 	}
148 }
149 
150 static void
151 tr_wr(struct tr_info *tr, int regno, u_int32_t data, int size)
152 {
153 	switch(size) {
154 	case 1:
155 		bus_space_write_1(tr->st, tr->sh, regno, data);
156 		break;
157 	case 2:
158 		bus_space_write_2(tr->st, tr->sh, regno, data);
159 		break;
160 	case 4:
161 		bus_space_write_4(tr->st, tr->sh, regno, data);
162 		break;
163 	}
164 }
165 
166 /* -------------------------------------------------------------------- */
167 /* ac97 codec */
168 
169 static int
170 tr_rdcd(kobj_t obj, void *devinfo, int regno)
171 {
172 	struct tr_info *tr = (struct tr_info *)devinfo;
173 	int i, j, treg, trw;
174 
175 	switch (tr->type) {
176 	case SPA_PCI_ID:
177 		treg=SPA_REG_CODECRD;
178 		trw=SPA_CDC_RWSTAT;
179 		break;
180 	case ALI_PCI_ID:
181 		if (tr->rev > 0x01)
182 		  treg=TDX_REG_CODECWR;
183 		else
184 		  treg=TDX_REG_CODECRD;
185 		trw=TDX_CDC_RWSTAT;
186 		break;
187 	case TDX_PCI_ID:
188 		treg=TDX_REG_CODECRD;
189 		trw=TDX_CDC_RWSTAT;
190 		break;
191 	case TNX_PCI_ID:
192 		treg=(regno & 0x100)? TNX_REG_CODEC2RD : TNX_REG_CODEC1RD;
193 		trw=TNX_CDC_RWSTAT;
194 		break;
195 	default:
196 		printf("!!! tr_rdcd defaulted !!!\n");
197 		return -1;
198 	}
199 
200 	i = j = 0;
201 
202 	regno &= 0x7f;
203 	snd_mtxlock(tr->lock);
204 	if (tr->type == ALI_PCI_ID) {
205 		u_int32_t chk1, chk2;
206 		j = trw;
207 		for (i = TR_TIMEOUT_CDC; (i > 0) && (j & trw); i--)
208 			j = tr_rd(tr, treg, 4);
209 		if (i > 0) {
210 			chk1 = tr_rd(tr, 0xc8, 4);
211 			chk2 = tr_rd(tr, 0xc8, 4);
212 			for (i = TR_TIMEOUT_CDC; (i > 0) && (chk1 == chk2);
213 					i--)
214 				chk2 = tr_rd(tr, 0xc8, 4);
215 		}
216 	}
217 	if (tr->type != ALI_PCI_ID || i > 0) {
218 		tr_wr(tr, treg, regno | trw, 4);
219 		j=trw;
220 		for (i=TR_TIMEOUT_CDC; (i > 0) && (j & trw); i--)
221 		       	j=tr_rd(tr, treg, 4);
222 	}
223 	snd_mtxunlock(tr->lock);
224 	if (i == 0) printf("codec timeout during read of register %x\n", regno);
225 	return (j >> TR_CDC_DATA) & 0xffff;
226 }
227 
228 static int
229 tr_wrcd(kobj_t obj, void *devinfo, int regno, u_int32_t data)
230 {
231 	struct tr_info *tr = (struct tr_info *)devinfo;
232 	int i, j, treg, trw;
233 
234 	switch (tr->type) {
235 	case SPA_PCI_ID:
236 		treg=SPA_REG_CODECWR;
237 		trw=SPA_CDC_RWSTAT;
238 		break;
239 	case ALI_PCI_ID:
240 	case TDX_PCI_ID:
241 		treg=TDX_REG_CODECWR;
242 		trw=TDX_CDC_RWSTAT;
243 		break;
244 	case TNX_PCI_ID:
245 		treg=TNX_REG_CODECWR;
246 		trw=TNX_CDC_RWSTAT | ((regno & 0x100)? TNX_CDC_SEC : 0);
247 		break;
248 	default:
249 		printf("!!! tr_wrcd defaulted !!!");
250 		return -1;
251 	}
252 
253 	i = 0;
254 
255 	regno &= 0x7f;
256 #if 0
257 	printf("tr_wrcd: reg %x was %x", regno, tr_rdcd(devinfo, regno));
258 #endif
259 	j=trw;
260 	snd_mtxlock(tr->lock);
261 	if (tr->type == ALI_PCI_ID) {
262 		j = trw;
263 		for (i = TR_TIMEOUT_CDC; (i > 0) && (j & trw); i--)
264 			j = tr_rd(tr, treg, 4);
265 		if (i > 0) {
266 			u_int32_t chk1, chk2;
267 			chk1 = tr_rd(tr, 0xc8, 4);
268 			chk2 = tr_rd(tr, 0xc8, 4);
269 			for (i = TR_TIMEOUT_CDC; (i > 0) && (chk1 == chk2);
270 					i--)
271 				chk2 = tr_rd(tr, 0xc8, 4);
272 		}
273 	}
274 	if (tr->type != ALI_PCI_ID || i > 0) {
275 		for (i=TR_TIMEOUT_CDC; (i>0) && (j & trw); i--)
276 			j=tr_rd(tr, treg, 4);
277 		if (tr->type == ALI_PCI_ID && tr->rev > 0x01)
278 		      	trw |= 0x0100;
279 		tr_wr(tr, treg, (data << TR_CDC_DATA) | regno | trw, 4);
280 	}
281 #if 0
282 	printf(" - wrote %x, now %x\n", data, tr_rdcd(devinfo, regno));
283 #endif
284 	snd_mtxunlock(tr->lock);
285 	if (i==0) printf("codec timeout writing %x, data %x\n", regno, data);
286 	return (i > 0)? 0 : -1;
287 }
288 
289 static kobj_method_t tr_ac97_methods[] = {
290     	KOBJMETHOD(ac97_read,		tr_rdcd),
291     	KOBJMETHOD(ac97_write,		tr_wrcd),
292 	{ 0, 0 }
293 };
294 AC97_DECLARE(tr_ac97);
295 
296 /* -------------------------------------------------------------------- */
297 /* playback channel interrupts */
298 
299 #if 0
300 static u_int32_t
301 tr_testint(struct tr_chinfo *ch)
302 {
303 	struct tr_info *tr = ch->parent;
304 	int bank, chan;
305 
306 	bank = (ch->index & 0x20) ? 1 : 0;
307 	chan = ch->index & 0x1f;
308 	return tr_rd(tr, bank? TR_REG_ADDRINTB : TR_REG_ADDRINTA, 4) & (1 << chan);
309 }
310 #endif
311 
312 static void
313 tr_clrint(struct tr_chinfo *ch)
314 {
315 	struct tr_info *tr = ch->parent;
316 	int bank, chan;
317 
318 	bank = (ch->index & 0x20) ? 1 : 0;
319 	chan = ch->index & 0x1f;
320 	tr_wr(tr, bank? TR_REG_ADDRINTB : TR_REG_ADDRINTA, 1 << chan, 4);
321 }
322 
323 static void
324 tr_enaint(struct tr_chinfo *ch, int enable)
325 {
326 	struct tr_info *tr = ch->parent;
327        	u_int32_t i, reg;
328 	int bank, chan;
329 
330 	snd_mtxlock(tr->lock);
331 	bank = (ch->index & 0x20) ? 1 : 0;
332 	chan = ch->index & 0x1f;
333 	reg = bank? TR_REG_INTENB : TR_REG_INTENA;
334 
335 	i = tr_rd(tr, reg, 4);
336 	i &= ~(1 << chan);
337 	i |= (enable? 1 : 0) << chan;
338 
339 	tr_clrint(ch);
340 	tr_wr(tr, reg, i, 4);
341 	snd_mtxunlock(tr->lock);
342 }
343 
344 /* playback channels */
345 
346 static void
347 tr_selch(struct tr_chinfo *ch)
348 {
349 	struct tr_info *tr = ch->parent;
350 	int i;
351 
352 	i = tr_rd(tr, TR_REG_CIR, 4);
353 	i &= ~TR_CIR_MASK;
354 	i |= ch->index & 0x3f;
355 	tr_wr(tr, TR_REG_CIR, i, 4);
356 }
357 
358 static void
359 tr_startch(struct tr_chinfo *ch)
360 {
361 	struct tr_info *tr = ch->parent;
362 	int bank, chan;
363 
364 	bank = (ch->index & 0x20) ? 1 : 0;
365 	chan = ch->index & 0x1f;
366 	tr_wr(tr, bank? TR_REG_STARTB : TR_REG_STARTA, 1 << chan, 4);
367 }
368 
369 static void
370 tr_stopch(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_STOPB : TR_REG_STOPA, 1 << chan, 4);
378 }
379 
380 static void
381 tr_wrch(struct tr_chinfo *ch)
382 {
383 	struct tr_info *tr = ch->parent;
384 	u_int32_t cr[TR_CHN_REGS], i;
385 
386 	ch->gvsel 	&= 0x00000001;
387 	ch->fmc		&= 0x00000003;
388 	ch->fms		&= 0x0000000f;
389 	ch->ctrl	&= 0x0000000f;
390 	ch->pan 	&= 0x0000007f;
391 	ch->rvol	&= 0x0000007f;
392 	ch->cvol 	&= 0x0000007f;
393 	ch->vol		&= 0x000000ff;
394 	ch->ec		&= 0x00000fff;
395 	ch->alpha	&= 0x00000fff;
396 	ch->delta	&= 0x0000ffff;
397 	ch->lba		&= 0x3fffffff;
398 
399 	cr[1]=ch->lba;
400 	cr[3]=(ch->fmc<<14) | (ch->rvol<<7) | (ch->cvol);
401 	cr[4]=(ch->gvsel<<31) | (ch->pan<<24) | (ch->vol<<16) | (ch->ctrl<<12) | (ch->ec);
402 
403 	switch (tr->type) {
404 	case SPA_PCI_ID:
405 	case ALI_PCI_ID:
406 	case TDX_PCI_ID:
407 		ch->cso &= 0x0000ffff;
408 		ch->eso &= 0x0000ffff;
409 		cr[0]=(ch->cso<<16) | (ch->alpha<<4) | (ch->fms);
410 		cr[2]=(ch->eso<<16) | (ch->delta);
411 		break;
412 	case TNX_PCI_ID:
413 		ch->cso &= 0x00ffffff;
414 		ch->eso &= 0x00ffffff;
415 		cr[0]=((ch->delta & 0xff)<<24) | (ch->cso);
416 		cr[2]=((ch->delta>>8)<<24) | (ch->eso);
417 		cr[3]|=(ch->alpha<<20) | (ch->fms<<16) | (ch->fmc<<14);
418 		break;
419 	}
420 	snd_mtxlock(tr->lock);
421 	tr_selch(ch);
422 	for (i=0; i<TR_CHN_REGS; i++)
423 		tr_wr(tr, TR_REG_CHNBASE+(i<<2), cr[i], 4);
424 	snd_mtxunlock(tr->lock);
425 }
426 
427 static void
428 tr_rdch(struct tr_chinfo *ch)
429 {
430 	struct tr_info *tr = ch->parent;
431 	u_int32_t cr[5], i;
432 
433 	snd_mtxlock(tr->lock);
434 	tr_selch(ch);
435 	for (i=0; i<5; i++)
436 		cr[i]=tr_rd(tr, TR_REG_CHNBASE+(i<<2), 4);
437 	snd_mtxunlock(tr->lock);
438 
439 
440 	ch->lba=	(cr[1] & 0x3fffffff);
441 	ch->fmc=	(cr[3] & 0x0000c000) >> 14;
442 	ch->rvol=	(cr[3] & 0x00003f80) >> 7;
443 	ch->cvol=	(cr[3] & 0x0000007f);
444 	ch->gvsel=	(cr[4] & 0x80000000) >> 31;
445 	ch->pan=	(cr[4] & 0x7f000000) >> 24;
446 	ch->vol=	(cr[4] & 0x00ff0000) >> 16;
447 	ch->ctrl=	(cr[4] & 0x0000f000) >> 12;
448 	ch->ec=		(cr[4] & 0x00000fff);
449 	switch(tr->type) {
450 	case SPA_PCI_ID:
451 	case ALI_PCI_ID:
452 	case TDX_PCI_ID:
453 		ch->cso=	(cr[0] & 0xffff0000) >> 16;
454 		ch->alpha=	(cr[0] & 0x0000fff0) >> 4;
455 		ch->fms=	(cr[0] & 0x0000000f);
456 		ch->eso=	(cr[2] & 0xffff0000) >> 16;
457 		ch->delta=	(cr[2] & 0x0000ffff);
458 		break;
459 	case TNX_PCI_ID:
460 		ch->cso=	(cr[0] & 0x00ffffff);
461 		ch->eso=	(cr[2] & 0x00ffffff);
462 		ch->delta=	((cr[2] & 0xff000000) >> 16) | ((cr[0] & 0xff000000) >> 24);
463 		ch->alpha=	(cr[3] & 0xfff00000) >> 20;
464 		ch->fms=	(cr[3] & 0x000f0000) >> 16;
465 		break;
466 	}
467 }
468 
469 static u_int32_t
470 tr_fmttobits(u_int32_t fmt)
471 {
472 	u_int32_t bits;
473 
474 	bits = 0;
475 	bits |= (fmt & AFMT_SIGNED)? 0x2 : 0;
476 	bits |= (fmt & AFMT_STEREO)? 0x4 : 0;
477 	bits |= (fmt & AFMT_16BIT)? 0x8 : 0;
478 
479 	return bits;
480 }
481 
482 /* -------------------------------------------------------------------- */
483 /* channel interface */
484 
485 static void *
486 trpchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
487 {
488 	struct tr_info *tr = devinfo;
489 	struct tr_chinfo *ch;
490 
491 	KASSERT(dir == PCMDIR_PLAY, ("trpchan_init: bad direction"));
492 	ch = &tr->chinfo[tr->playchns];
493 	ch->index = tr->playchns++;
494 	ch->buffer = b;
495 	ch->parent = tr;
496 	ch->channel = c;
497 	if (sndbuf_alloc(ch->buffer, tr->parent_dmat, 0, tr->bufsz) != 0)
498 		return NULL;
499 
500 	return ch;
501 }
502 
503 static int
504 trpchan_setformat(kobj_t obj, void *data, u_int32_t format)
505 {
506 	struct tr_chinfo *ch = data;
507 
508 	ch->ctrl = tr_fmttobits(format) | 0x01;
509 
510 	return 0;
511 }
512 
513 static int
514 trpchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
515 {
516 	struct tr_chinfo *ch = data;
517 
518 	ch->delta = (speed << 12) / 48000;
519 	return (ch->delta * 48000) >> 12;
520 }
521 
522 static int
523 trpchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
524 {
525 	struct tr_chinfo *ch = data;
526 
527 	sndbuf_resize(ch->buffer, 2, blocksize);
528 	return blocksize;
529 }
530 
531 static int
532 trpchan_trigger(kobj_t obj, void *data, int go)
533 {
534 	struct tr_chinfo *ch = data;
535 
536 	if (!PCMTRIG_COMMON(go))
537 		return 0;
538 
539 	if (go == PCMTRIG_START) {
540 		ch->fmc = 3;
541 		ch->fms = 0;
542 		ch->ec = 0;
543 		ch->alpha = 0;
544 		ch->lba = sndbuf_getbufaddr(ch->buffer);
545 		ch->cso = 0;
546 		ch->eso = (sndbuf_getsize(ch->buffer) / sndbuf_getbps(ch->buffer)) - 1;
547 		ch->rvol = ch->cvol = 0x7f;
548 		ch->gvsel = 0;
549 		ch->pan = 0;
550 		ch->vol = 0;
551 		ch->bufhalf = 0;
552    		tr_wrch(ch);
553 		tr_enaint(ch, 1);
554 		tr_startch(ch);
555 		ch->active = 1;
556 	} else {
557 		tr_stopch(ch);
558 		ch->active = 0;
559 	}
560 
561 	return 0;
562 }
563 
564 static int
565 trpchan_getptr(kobj_t obj, void *data)
566 {
567 	struct tr_chinfo *ch = data;
568 
569 	tr_rdch(ch);
570 	return ch->cso * sndbuf_getbps(ch->buffer);
571 }
572 
573 static struct pcmchan_caps *
574 trpchan_getcaps(kobj_t obj, void *data)
575 {
576 	return &tr_playcaps;
577 }
578 
579 static kobj_method_t trpchan_methods[] = {
580     	KOBJMETHOD(channel_init,		trpchan_init),
581     	KOBJMETHOD(channel_setformat,		trpchan_setformat),
582     	KOBJMETHOD(channel_setspeed,		trpchan_setspeed),
583     	KOBJMETHOD(channel_setblocksize,	trpchan_setblocksize),
584     	KOBJMETHOD(channel_trigger,		trpchan_trigger),
585     	KOBJMETHOD(channel_getptr,		trpchan_getptr),
586     	KOBJMETHOD(channel_getcaps,		trpchan_getcaps),
587 	{ 0, 0 }
588 };
589 CHANNEL_DECLARE(trpchan);
590 
591 /* -------------------------------------------------------------------- */
592 /* rec channel interface */
593 
594 static void *
595 trrchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
596 {
597 	struct tr_info *tr = devinfo;
598 	struct tr_rchinfo *ch;
599 
600 	KASSERT(dir == PCMDIR_REC, ("trrchan_init: bad direction"));
601 	ch = &tr->recchinfo;
602 	ch->buffer = b;
603 	ch->parent = tr;
604 	ch->channel = c;
605 	if (sndbuf_alloc(ch->buffer, tr->parent_dmat, 0, tr->bufsz) != 0)
606 		return NULL;
607 
608 	return ch;
609 }
610 
611 static int
612 trrchan_setformat(kobj_t obj, void *data, u_int32_t format)
613 {
614 	struct tr_rchinfo *ch = data;
615 	struct tr_info *tr = ch->parent;
616 	u_int32_t i, bits;
617 
618 	bits = tr_fmttobits(format);
619 	/* set # of samples between interrupts */
620 	i = (sndbuf_runsz(ch->buffer) >> ((bits & 0x08)? 1 : 0)) - 1;
621 	tr_wr(tr, TR_REG_SBBL, i | (i << 16), 4);
622 	/* set sample format */
623 	i = 0x18 | (bits << 4);
624 	tr_wr(tr, TR_REG_SBCTRL, i, 1);
625 
626 	return 0;
627 
628 }
629 
630 static int
631 trrchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
632 {
633 	struct tr_rchinfo *ch = data;
634 	struct tr_info *tr = ch->parent;
635 
636 	/* setup speed */
637 	ch->delta = (48000 << 12) / speed;
638 	tr_wr(tr, TR_REG_SBDELTA, ch->delta, 2);
639 
640 	/* return closest possible speed */
641 	return (48000 << 12) / ch->delta;
642 }
643 
644 static int
645 trrchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
646 {
647 	struct tr_rchinfo *ch = data;
648 
649 	sndbuf_resize(ch->buffer, 2, blocksize);
650 
651 	return blocksize;
652 }
653 
654 static int
655 trrchan_trigger(kobj_t obj, void *data, int go)
656 {
657 	struct tr_rchinfo *ch = data;
658 	struct tr_info *tr = ch->parent;
659 	u_int32_t i;
660 
661 	if (!PCMTRIG_COMMON(go))
662 		return 0;
663 
664 	if (go == PCMTRIG_START) {
665 		/* set up dma mode regs */
666 		tr_wr(tr, TR_REG_DMAR15, 0, 1);
667 		i = tr_rd(tr, TR_REG_DMAR11, 1) & 0x03;
668 		tr_wr(tr, TR_REG_DMAR11, i | 0x54, 1);
669 		/* set up base address */
670 	   	tr_wr(tr, TR_REG_DMAR0, sndbuf_getbufaddr(ch->buffer), 4);
671 		/* set up buffer size */
672 		i = tr_rd(tr, TR_REG_DMAR4, 4) & ~0x00ffffff;
673 		tr_wr(tr, TR_REG_DMAR4, i | (sndbuf_runsz(ch->buffer) - 1), 4);
674 		/* start */
675 		tr_wr(tr, TR_REG_SBCTRL, tr_rd(tr, TR_REG_SBCTRL, 1) | 1, 1);
676 		ch->active = 1;
677 	} else {
678 		tr_wr(tr, TR_REG_SBCTRL, tr_rd(tr, TR_REG_SBCTRL, 1) & ~7, 1);
679 		ch->active = 0;
680 	}
681 
682 	/* return 0 if ok */
683 	return 0;
684 }
685 
686 static int
687 trrchan_getptr(kobj_t obj, void *data)
688 {
689  	struct tr_rchinfo *ch = data;
690 	struct tr_info *tr = ch->parent;
691 
692 	/* return current byte offset of channel */
693 	return tr_rd(tr, TR_REG_DMAR0, 4) - sndbuf_getbufaddr(ch->buffer);
694 }
695 
696 static struct pcmchan_caps *
697 trrchan_getcaps(kobj_t obj, void *data)
698 {
699 	return &tr_reccaps;
700 }
701 
702 static kobj_method_t trrchan_methods[] = {
703     	KOBJMETHOD(channel_init,		trrchan_init),
704     	KOBJMETHOD(channel_setformat,		trrchan_setformat),
705     	KOBJMETHOD(channel_setspeed,		trrchan_setspeed),
706     	KOBJMETHOD(channel_setblocksize,	trrchan_setblocksize),
707     	KOBJMETHOD(channel_trigger,		trrchan_trigger),
708     	KOBJMETHOD(channel_getptr,		trrchan_getptr),
709     	KOBJMETHOD(channel_getcaps,		trrchan_getcaps),
710 	{ 0, 0 }
711 };
712 CHANNEL_DECLARE(trrchan);
713 
714 /* -------------------------------------------------------------------- */
715 /* The interrupt handler */
716 
717 static void
718 tr_intr(void *p)
719 {
720 	struct tr_info *tr = (struct tr_info *)p;
721 	struct tr_chinfo *ch;
722 	u_int32_t active, mask, bufhalf, chnum, intsrc;
723 	int tmp;
724 
725 	intsrc = tr_rd(tr, TR_REG_MISCINT, 4);
726 	if (intsrc & TR_INT_ADDR) {
727 		chnum = 0;
728 		while (chnum < 64) {
729 			mask = 0x00000001;
730 			active = tr_rd(tr, (chnum < 32)? TR_REG_ADDRINTA : TR_REG_ADDRINTB, 4);
731 			bufhalf = tr_rd(tr, (chnum < 32)? TR_REG_CSPF_A : TR_REG_CSPF_B, 4);
732 			if (active) {
733 				do {
734 					if (active & mask) {
735 						tmp = (bufhalf & mask)? 1 : 0;
736 						if (chnum < tr->playchns) {
737 							ch = &tr->chinfo[chnum];
738 							/* printf("%d @ %d, ", chnum, trpchan_getptr(NULL, ch)); */
739 							if (ch->bufhalf != tmp) {
740 								chn_intr(ch->channel);
741 								ch->bufhalf = tmp;
742 							}
743 						}
744 					}
745 					chnum++;
746 					mask <<= 1;
747 				} while (chnum & 31);
748 			} else
749 				chnum += 32;
750 
751 			tr_wr(tr, (chnum <= 32)? TR_REG_ADDRINTA : TR_REG_ADDRINTB, active, 4);
752 		}
753 	}
754 	if (intsrc & TR_INT_SB) {
755 		chn_intr(tr->recchinfo.channel);
756 		tr_rd(tr, TR_REG_SBR9, 1);
757 		tr_rd(tr, TR_REG_SBR10, 1);
758 	}
759 }
760 
761 /* -------------------------------------------------------------------- */
762 
763 /*
764  * Probe and attach the card
765  */
766 
767 static int
768 tr_init(struct tr_info *tr)
769 {
770 	switch (tr->type) {
771 	case SPA_PCI_ID:
772 		tr_wr(tr, SPA_REG_GPIO, 0, 4);
773 		tr_wr(tr, SPA_REG_CODECST, SPA_RST_OFF, 4);
774 		break;
775 	case TDX_PCI_ID:
776 		tr_wr(tr, TDX_REG_CODECST, TDX_CDC_ON, 4);
777 		break;
778 	case TNX_PCI_ID:
779 		tr_wr(tr, TNX_REG_CODECST, TNX_CDC_ON, 4);
780 		break;
781 	}
782 
783 	tr_wr(tr, TR_REG_CIR, TR_CIR_MIDENA | TR_CIR_ADDRENA, 4);
784 	return 0;
785 }
786 
787 static int
788 tr_pci_probe(device_t dev)
789 {
790 	switch (pci_get_devid(dev)) {
791 		case SPA_PCI_ID:
792 			device_set_desc(dev, "SiS 7018");
793 			return BUS_PROBE_DEFAULT;
794 		case ALI_PCI_ID:
795 			device_set_desc(dev, "Acer Labs M5451");
796 			return BUS_PROBE_DEFAULT;
797 		case TDX_PCI_ID:
798 			device_set_desc(dev, "Trident 4DWave DX");
799 			return BUS_PROBE_DEFAULT;
800 		case TNX_PCI_ID:
801 			device_set_desc(dev, "Trident 4DWave NX");
802 			return BUS_PROBE_DEFAULT;
803 	}
804 
805 	return ENXIO;
806 }
807 
808 static int
809 tr_pci_attach(device_t dev)
810 {
811 	u_int32_t	data;
812 	struct tr_info *tr;
813 	struct ac97_info *codec = 0;
814 	int		i, dacn;
815 	char 		status[SND_STATUSLEN];
816 
817 	tr = malloc(sizeof(*tr), M_DEVBUF, M_WAITOK | M_ZERO);
818 	tr->type = pci_get_devid(dev);
819 	tr->rev = pci_get_revid(dev);
820 	tr->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_t4dwave softc");
821 
822 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
823 	    "dac", &i) == 0) {
824 	    	if (i < 1)
825 			dacn = 1;
826 		else if (i > TR_MAXPLAYCH)
827 			dacn = TR_MAXPLAYCH;
828 		else
829 			dacn = i;
830 	} else {
831 		switch (tr->type) {
832 		case ALI_PCI_ID:
833 			dacn = 1;
834 			break;
835 		default:
836 			dacn = TR_MAXPLAYCH;
837 			break;
838 		}
839 	}
840 
841 	data = pci_read_config(dev, PCIR_COMMAND, 2);
842 	data |= (PCIM_CMD_PORTEN|PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
843 	pci_write_config(dev, PCIR_COMMAND, data, 2);
844 	data = pci_read_config(dev, PCIR_COMMAND, 2);
845 
846 	tr->regid = PCIR_BAR(0);
847 	tr->regtype = SYS_RES_IOPORT;
848 	tr->reg = bus_alloc_resource_any(dev, tr->regtype, &tr->regid,
849 		RF_ACTIVE);
850 	if (tr->reg) {
851 		tr->st = rman_get_bustag(tr->reg);
852 		tr->sh = rman_get_bushandle(tr->reg);
853 	} else {
854 		device_printf(dev, "unable to map register space\n");
855 		goto bad;
856 	}
857 
858 	tr->bufsz = pcm_getbuffersize(dev, 4096, TR_DEFAULT_BUFSZ, 65536);
859 
860 	if (tr_init(tr) == -1) {
861 		device_printf(dev, "unable to initialize the card\n");
862 		goto bad;
863 	}
864 	tr->playchns = 0;
865 
866 	codec = AC97_CREATE(dev, tr, tr_ac97);
867 	if (codec == NULL) goto bad;
868 	if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto bad;
869 
870 	tr->irqid = 0;
871 	tr->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &tr->irqid,
872 				 RF_ACTIVE | RF_SHAREABLE);
873 	if (!tr->irq || snd_setup_intr(dev, tr->irq, 0, tr_intr, tr, &tr->ih)) {
874 		device_printf(dev, "unable to map interrupt\n");
875 		goto bad;
876 	}
877 
878 	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
879 		/*boundary*/0,
880 		/*lowaddr*/TR_MAXADDR,
881 		/*highaddr*/BUS_SPACE_MAXADDR,
882 		/*filter*/NULL, /*filterarg*/NULL,
883 		/*maxsize*/tr->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
884 		/*flags*/0, /*lockfunc*/busdma_lock_mutex,
885 		/*lockarg*/&Giant, &tr->parent_dmat) != 0) {
886 		device_printf(dev, "unable to create dma tag\n");
887 		goto bad;
888 	}
889 
890 	snprintf(status, 64, "at io 0x%lx irq %ld %s",
891 		 rman_get_start(tr->reg), rman_get_start(tr->irq),PCM_KLDSTRING(snd_t4dwave));
892 
893 	if (pcm_register(dev, tr, dacn, 1))
894 		goto bad;
895 	pcm_addchan(dev, PCMDIR_REC, &trrchan_class, tr);
896 	for (i = 0; i < dacn; i++)
897 		pcm_addchan(dev, PCMDIR_PLAY, &trpchan_class, tr);
898 	pcm_setstatus(dev, status);
899 
900 	return 0;
901 
902 bad:
903 	if (codec) ac97_destroy(codec);
904 	if (tr->reg) bus_release_resource(dev, tr->regtype, tr->regid, tr->reg);
905 	if (tr->ih) bus_teardown_intr(dev, tr->irq, tr->ih);
906 	if (tr->irq) bus_release_resource(dev, SYS_RES_IRQ, tr->irqid, tr->irq);
907 	if (tr->parent_dmat) bus_dma_tag_destroy(tr->parent_dmat);
908 	if (tr->lock) snd_mtxfree(tr->lock);
909 	free(tr, M_DEVBUF);
910 	return ENXIO;
911 }
912 
913 static int
914 tr_pci_detach(device_t dev)
915 {
916 	int r;
917 	struct tr_info *tr;
918 
919 	r = pcm_unregister(dev);
920 	if (r)
921 		return r;
922 
923 	tr = pcm_getdevinfo(dev);
924 	bus_release_resource(dev, tr->regtype, tr->regid, tr->reg);
925 	bus_teardown_intr(dev, tr->irq, tr->ih);
926 	bus_release_resource(dev, SYS_RES_IRQ, tr->irqid, tr->irq);
927 	bus_dma_tag_destroy(tr->parent_dmat);
928 	snd_mtxfree(tr->lock);
929 	free(tr, M_DEVBUF);
930 
931 	return 0;
932 }
933 
934 static int
935 tr_pci_suspend(device_t dev)
936 {
937 	int i;
938 	struct tr_info *tr;
939 
940 	tr = pcm_getdevinfo(dev);
941 
942 	for (i = 0; i < tr->playchns; i++) {
943 		tr->chinfo[i].was_active = tr->chinfo[i].active;
944 		if (tr->chinfo[i].active) {
945 			trpchan_trigger(NULL, &tr->chinfo[i], PCMTRIG_STOP);
946 		}
947 	}
948 
949 	tr->recchinfo.was_active = tr->recchinfo.active;
950 	if (tr->recchinfo.active) {
951 		trrchan_trigger(NULL, &tr->recchinfo, PCMTRIG_STOP);
952 	}
953 
954 	return 0;
955 }
956 
957 static int
958 tr_pci_resume(device_t dev)
959 {
960 	int i;
961 	struct tr_info *tr;
962 
963 	tr = pcm_getdevinfo(dev);
964 
965 	if (tr_init(tr) == -1) {
966 		device_printf(dev, "unable to initialize the card\n");
967 		return ENXIO;
968 	}
969 
970 	if (mixer_reinit(dev) == -1) {
971 		device_printf(dev, "unable to initialize the mixer\n");
972 		return ENXIO;
973 	}
974 
975 	for (i = 0; i < tr->playchns; i++) {
976 		if (tr->chinfo[i].was_active) {
977 			trpchan_trigger(NULL, &tr->chinfo[i], PCMTRIG_START);
978 		}
979 	}
980 
981 	if (tr->recchinfo.was_active) {
982 		trrchan_trigger(NULL, &tr->recchinfo, PCMTRIG_START);
983 	}
984 
985 	return 0;
986 }
987 
988 static device_method_t tr_methods[] = {
989 	/* Device interface */
990 	DEVMETHOD(device_probe,		tr_pci_probe),
991 	DEVMETHOD(device_attach,	tr_pci_attach),
992 	DEVMETHOD(device_detach,	tr_pci_detach),
993 	DEVMETHOD(device_suspend,	tr_pci_suspend),
994 	DEVMETHOD(device_resume,	tr_pci_resume),
995 	{ 0, 0 }
996 };
997 
998 static driver_t tr_driver = {
999 	"pcm",
1000 	tr_methods,
1001 	PCM_SOFTC_SIZE,
1002 };
1003 
1004 DRIVER_MODULE(snd_t4dwave, pci, tr_driver, pcm_devclass, 0, 0);
1005 MODULE_DEPEND(snd_t4dwave, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1006 MODULE_VERSION(snd_t4dwave, 1);
1007