t4dwave.c revision 173511
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
34SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pci/t4dwave.c 173511 2007-11-10 04:32:50Z ariff $");
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
57struct tr_info;
58
59/* channel registers */
60struct 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
73struct 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 */
82struct 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
105static 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};
116static struct pcmchan_caps tr_reccaps = {4000, 48000, tr_recfmt, 0};
117
118static 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};
129static struct pcmchan_caps tr_playcaps = {4000, 48000, tr_playfmt, 0};
130
131/* -------------------------------------------------------------------- */
132
133/* Hardware */
134
135static u_int32_t
136tr_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
150static void
151tr_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
169static int
170tr_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
228static int
229tr_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
289static kobj_method_t tr_ac97_methods[] = {
290    	KOBJMETHOD(ac97_read,		tr_rdcd),
291    	KOBJMETHOD(ac97_write,		tr_wrcd),
292	{ 0, 0 }
293};
294AC97_DECLARE(tr_ac97);
295
296/* -------------------------------------------------------------------- */
297/* playback channel interrupts */
298
299#if 0
300static u_int32_t
301tr_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
312static void
313tr_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
323static void
324tr_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
346static void
347tr_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
358static void
359tr_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
369static void
370tr_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
380static void
381tr_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
427static void
428tr_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
469static u_int32_t
470tr_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
485static void *
486trpchan_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
503static int
504trpchan_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
513static int
514trpchan_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
522static int
523trpchan_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
531static int
532trpchan_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
564static int
565trpchan_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
573static struct pcmchan_caps *
574trpchan_getcaps(kobj_t obj, void *data)
575{
576	return &tr_playcaps;
577}
578
579static 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};
589CHANNEL_DECLARE(trpchan);
590
591/* -------------------------------------------------------------------- */
592/* rec channel interface */
593
594static void *
595trrchan_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
611static int
612trrchan_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
630static int
631trrchan_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
644static int
645trrchan_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
654static int
655trrchan_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
686static int
687trrchan_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
696static struct pcmchan_caps *
697trrchan_getcaps(kobj_t obj, void *data)
698{
699	return &tr_reccaps;
700}
701
702static 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};
712CHANNEL_DECLARE(trrchan);
713
714/* -------------------------------------------------------------------- */
715/* The interrupt handler */
716
717static void
718tr_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
767static int
768tr_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
787static int
788tr_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
808static int
809tr_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
902bad:
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
913static int
914tr_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
934static int
935tr_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
957static int
958tr_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
988static 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
998static driver_t tr_driver = {
999	"pcm",
1000	tr_methods,
1001	PCM_SOFTC_SIZE,
1002};
1003
1004DRIVER_MODULE(snd_t4dwave, pci, tr_driver, pcm_devclass, 0, 0);
1005MODULE_DEPEND(snd_t4dwave, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1006MODULE_VERSION(snd_t4dwave, 1);
1007