aureal.c revision 54212 
1/*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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, WHETHER IN 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 THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/dev/sound/pci/aureal.c 54212 1999-12-06 18:26:33Z peter $
27 */
28
29#include "pci.h"
30#include "pcm.h"
31
32#include <dev/sound/pcm/sound.h>
33#include <dev/sound/pcm/ac97.h>
34#include <dev/sound/pci/aureal.h>
35
36#include <pci/pcireg.h>
37#include <pci/pcivar.h>
38
39/* PCI IDs of supported chips */
40#define AU8820_PCI_ID 0x000112eb
41
42/* channel interface */
43static void *auchan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
44static int auchan_setdir(void *data, int dir);
45static int auchan_setformat(void *data, u_int32_t format);
46static int auchan_setspeed(void *data, u_int32_t speed);
47static int auchan_setblocksize(void *data, u_int32_t blocksize);
48static int auchan_trigger(void *data, int go);
49static int auchan_getptr(void *data);
50static pcmchan_caps *auchan_getcaps(void *data);
51
52static pcmchan_caps au_playcaps = {
53	4000, 48000,
54	AFMT_STEREO | AFMT_U8 | AFMT_S16_LE,
55	AFMT_STEREO | AFMT_S16_LE
56};
57
58static pcmchan_caps au_reccaps = {
59	4000, 48000,
60	AFMT_STEREO | AFMT_U8 | AFMT_S16_LE,
61	AFMT_STEREO | AFMT_S16_LE
62};
63
64static pcm_channel au_chantemplate = {
65	auchan_init,
66	auchan_setdir,
67	auchan_setformat,
68	auchan_setspeed,
69	auchan_setblocksize,
70	auchan_trigger,
71	auchan_getptr,
72	auchan_getcaps,
73};
74
75/* -------------------------------------------------------------------- */
76
77static u_int32_t au_rdcd(void *arg, int regno);
78static void au_wrcd(void *arg, int regno, u_int32_t data);
79
80struct au_info;
81
82struct au_chinfo {
83	struct au_info *parent;
84	pcm_channel *channel;
85	snd_dbuf *buffer;
86	int dir;
87};
88
89struct au_info {
90	int unit;
91
92	bus_space_tag_t st[3];
93	bus_space_handle_t sh[3];
94
95	bus_dma_tag_t	parent_dmat;
96
97	u_int32_t	x[32], y[128];
98	char		z[128];
99	u_int32_t	routes[4], interrupts;
100	struct au_chinfo pch;
101};
102
103static int      au_init(device_t dev, struct au_info *au);
104static void     au_intr(void *);
105
106/* -------------------------------------------------------------------- */
107
108static u_int32_t
109au_rd(struct au_info *au, int mapno, int regno, int size)
110{
111	switch(size) {
112	case 1:
113		return bus_space_read_1(au->st[mapno], au->sh[mapno], regno);
114	case 2:
115		return bus_space_read_2(au->st[mapno], au->sh[mapno], regno);
116	case 4:
117		return bus_space_read_4(au->st[mapno], au->sh[mapno], regno);
118	default:
119		return 0xffffffff;
120	}
121}
122
123static void
124au_wr(struct au_info *au, int mapno, int regno, u_int32_t data, int size)
125{
126	switch(size) {
127	case 1:
128		bus_space_write_1(au->st[mapno], au->sh[mapno], regno, data);
129		break;
130	case 2:
131		bus_space_write_2(au->st[mapno], au->sh[mapno], regno, data);
132		break;
133	case 4:
134		bus_space_write_4(au->st[mapno], au->sh[mapno], regno, data);
135		break;
136	}
137}
138
139static u_int32_t
140au_rdcd(void *arg, int regno)
141{
142	struct au_info *au = (struct au_info *)arg;
143	int i=0, j=0;
144
145	regno<<=16;
146	au_wr(au, 0, AU_REG_CODECIO, regno, 4);
147	while (j<50) {
148		i=au_rd(au, 0, AU_REG_CODECIO, 4);
149		if ((i & 0x00ff0000) == (regno | 0x00800000)) break;
150		DELAY(j * 200 + 2000);
151		j++;
152	}
153	if (j==50) printf("pcm%d: codec timeout reading register %x (%x)\n",
154		au->unit, (regno & AU_CDC_REGMASK)>>16, i);
155	return i & AU_CDC_DATAMASK;
156}
157
158static void
159au_wrcd(void *arg, int regno, u_int32_t data)
160{
161	struct au_info *au = (struct au_info *)arg;
162	int i, j, tries;
163	i=j=tries=0;
164	do {
165		while (j<50 && (i & AU_CDC_WROK) == 0) {
166			i=au_rd(au, 0, AU_REG_CODECST, 4);
167			DELAY(2000);
168			j++;
169		}
170		if (j==50) printf("codec timeout during write of register %x, data %x\n",
171				  regno, data);
172		au_wr(au, 0, AU_REG_CODECIO, (regno<<16) | AU_CDC_REGSET | data, 4);
173/*		DELAY(20000);
174		i=au_rdcd(au, regno);
175*/		tries++;
176	} while (0); /* (i != data && tries < 3); */
177	/*
178	if (tries == 3) printf("giving up writing 0x%4x to codec reg %2x\n", data, regno);
179	*/
180}
181
182static void
183au_setbit(u_int32_t *p, char bit, u_int32_t value)
184{
185	p += bit >> 5;
186	bit &= 0x1f;
187	*p &= ~ (1 << bit);
188	*p |= (value << bit);
189}
190
191static void
192au_addroute(struct au_info *au, int a, int b, int route)
193{
194	int j = 0x1099c+(a<<2);
195	if (au->x[a] != a+0x67) j = AU_REG_RTBASE+(au->x[a]<<2);
196
197	au_wr(au, 0, AU_REG_RTBASE+(route<<2), 0xffffffff, 4);
198 	au_wr(au, 0, j, route | (b<<7), 4);
199	au->y[route]=au->x[a];
200	au->x[a]=route;
201	au->z[route]=a & 0x000000ff;
202	au_setbit(au->routes, route, 1);
203}
204
205static void
206au_delroute(struct au_info *au, int route)
207{
208	int i;
209	int j=au->z[route];
210
211	au_setbit(au->routes, route, 0);
212	au->z[route]=0x1f;
213	i=au_rd(au, 0, AU_REG_RTBASE+(route<<2), 4);
214	au_wr(au, 0, AU_REG_RTBASE+(au->y[route]<<2), i, 4);
215	au->y[i & 0x7f]=au->y[route];
216	au_wr(au, 0, AU_REG_RTBASE+(route<<2), 0xfffffffe, 4);
217	if (au->x[j] == route) au->x[j]=au->y[route];
218	au->y[route]=0x7f;
219}
220
221static void
222au_encodec(struct au_info *au, char channel)
223{
224	au_wr(au, 0, AU_REG_CODECEN,
225	      au_rd(au, 0, AU_REG_CODECEN, 4) | (1 << (channel + 8)), 4);
226}
227
228static void
229au_clrfifo(struct au_info *au, u_int32_t c)
230{
231	u_int32_t i;
232
233	for (i=0; i<32; i++) au_wr(au, 0, AU_REG_FIFOBASE+(c<<7)+(i<<2), 0, 4);
234}
235
236static void
237au_setadb(struct au_info *au, u_int32_t c, u_int32_t enable)
238{
239	int x;
240
241	x = au_rd(au, 0, AU_REG_ADB, 4);
242	x &= ~(1 << c);
243	x |= (enable << c);
244	au_wr(au, 0, AU_REG_ADB, x, 4);
245}
246
247static void
248au_prepareoutput(struct au_chinfo *ch, u_int32_t format)
249{
250	struct au_info *au = ch->parent;
251	int i, stereo = (format & AFMT_STEREO)? 1 : 0;
252	u_int32_t baseaddr = vtophys(ch->buffer->buf);
253
254	au_wr(au, 0, 0x1061c, 0, 4);
255	au_wr(au, 0, 0x10620, 0, 4);
256	au_wr(au, 0, 0x10624, 0, 4);
257	switch(format & ~AFMT_STEREO) {
258		case 1:
259			i=0xb000;
260			break;
261		case 2:
262			i=0xf000;
263			break;
264 		case 8:
265			i=0x7000;
266			break;
267		case 16:
268			i=0x23000;
269			break;
270		default:
271			i=0x3000;
272	}
273	au_wr(au, 0, 0x10200, baseaddr, 4);
274	au_wr(au, 0, 0x10204, baseaddr+0x1000, 4);
275	au_wr(au, 0, 0x10208, baseaddr+0x2000, 4);
276	au_wr(au, 0, 0x1020c, baseaddr+0x3000, 4);
277
278	au_wr(au, 0, 0x10400, 0xdeffffff, 4);
279	au_wr(au, 0, 0x10404, 0xfcffffff, 4);
280
281	au_wr(au, 0, 0x10580, i, 4);
282
283	au_wr(au, 0, 0x10210, baseaddr, 4);
284	au_wr(au, 0, 0x10214, baseaddr+0x1000, 4);
285	au_wr(au, 0, 0x10218, baseaddr+0x2000, 4);
286	au_wr(au, 0, 0x1021c, baseaddr+0x3000, 4);
287
288	au_wr(au, 0, 0x10408, 0x00fff000 | 0x56000000 | 0x00000fff, 4);
289	au_wr(au, 0, 0x1040c, 0x00fff000 | 0x74000000 | 0x00000fff, 4);
290
291	au_wr(au, 0, 0x10584, i, 4);
292
293	au_wr(au, 0, 0x0f800, stereo? 0x00030032 : 0x00030030, 4);
294	au_wr(au, 0, 0x0f804, stereo? 0x00030032 : 0x00030030, 4);
295
296	au_addroute(au, 0x11, 0, 0x58);
297	au_addroute(au, 0x11, stereo? 0 : 1, 0x59);
298}
299
300/* channel interface */
301static void *
302auchan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
303{
304	struct au_info *au = devinfo;
305	struct au_chinfo *ch = (dir == PCMDIR_PLAY)? &au->pch : NULL;
306
307	ch->parent = au;
308	ch->channel = c;
309	ch->buffer = b;
310	ch->buffer->bufsize = AU_BUFFSIZE;
311	if (chn_allocbuf(ch->buffer, au->parent_dmat) == -1) return NULL;
312	return ch;
313}
314
315static int
316auchan_setdir(void *data, int dir)
317{
318	struct au_chinfo *ch = data;
319	if (dir == PCMDIR_PLAY) {
320	} else {
321	}
322	ch->dir = dir;
323	return 0;
324}
325
326static int
327auchan_setformat(void *data, u_int32_t format)
328{
329	struct au_chinfo *ch = data;
330
331	if (ch->dir == PCMDIR_PLAY) au_prepareoutput(ch, format);
332	return 0;
333}
334
335static int
336auchan_setspeed(void *data, u_int32_t speed)
337{
338	struct au_chinfo *ch = data;
339	if (ch->dir == PCMDIR_PLAY) {
340	} else {
341	}
342	return speed;
343}
344
345static int
346auchan_setblocksize(void *data, u_int32_t blocksize)
347{
348	return blocksize;
349}
350
351static int
352auchan_trigger(void *data, int go)
353{
354	struct au_chinfo *ch = data;
355	struct au_info *au = ch->parent;
356	if (ch->dir == PCMDIR_PLAY) {
357		au_setadb(au, 0x11, (go)? 1 : 0);
358		if (!go) {
359			au_wr(au, 0, 0xf800, 0, 4);
360			au_wr(au, 0, 0xf804, 0, 4);
361			au_delroute(au, 0x58);
362			au_delroute(au, 0x59);
363		}
364	} else {
365	}
366	return 0;
367}
368
369static int
370auchan_getptr(void *data)
371{
372	struct au_chinfo *ch = data;
373	struct au_info *au = ch->parent;
374	if (ch->dir == PCMDIR_PLAY) {
375		return au_rd(au, 0, AU_REG_UNK2, 4) & (AU_BUFFSIZE-1);
376	} else {
377		return 0;
378	}
379}
380
381static pcmchan_caps *
382auchan_getcaps(void *data)
383{
384	struct au_chinfo *ch = data;
385	return (ch->dir == PCMDIR_PLAY)? &au_playcaps : &au_reccaps;
386}
387
388/* The interrupt handler */
389static void
390au_intr (void *p)
391{
392	struct au_info *au = p;
393	u_int32_t	intsrc, i;
394
395	au->interrupts++;
396	intsrc=au_rd(au, 0, AU_REG_IRQSRC, 4);
397	printf("pcm%d: interrupt with src %x\n", au->unit, intsrc);
398	if (intsrc & AU_IRQ_FATAL) printf("pcm%d: fatal error irq\n", au->unit);
399	if (intsrc & AU_IRQ_PARITY) printf("pcm%d: parity error irq\n", au->unit);
400	if (intsrc & AU_IRQ_UNKNOWN) {
401		(void)au_rd(au, 0, AU_REG_UNK1, 4);
402		au_wr(au, 0, AU_REG_UNK1, 0, 4);
403		au_wr(au, 0, AU_REG_UNK1, 0x10000, 4);
404	}
405	if (intsrc & AU_IRQ_PCMOUT) {
406	       	i=au_rd(au, 0, AU_REG_UNK2, 4) & (AU_BUFFSIZE-1);
407	       	chn_intr(au->pch.channel);
408		(void)au_rd(au, 0, AU_REG_UNK3, 4);
409		(void)au_rd(au, 0, AU_REG_UNK4, 4);
410		(void)au_rd(au, 0, AU_REG_UNK5, 4);
411	}
412/* don't support midi
413	if (intsrc & AU_IRQ_MIDI) {
414		i=au_rd(au, 0, 0x11004, 4);
415		j=10;
416		while (i & 0xff) {
417			if (j-- <= 0) break;
418			i=au_rd(au, 0, 0x11000, 4);
419			if ((au->midi_stat & 1) && (au->midi_out))
420				au->midi_out(au->midi_devno, i);
421			i=au_rd(au, 0, 0x11004);
422		}
423	}
424*/
425	au_wr(au, 0, AU_REG_IRQSRC, intsrc & 0x7ff, 4);
426	au_rd(au, 0, AU_REG_IRQSRC, 4);
427}
428
429
430/* -------------------------------------------------------------------- */
431
432/* Probe and attach the card */
433
434static int
435au_init(device_t dev, struct au_info *au)
436{
437	u_int32_t	i, j;
438
439	au_wr(au, 0, AU_REG_IRQGLOB, 0xffffffff, 4);
440	DELAY(100000);
441
442	/* init codec */
443	/* cold reset */
444	for (i=0; i<32; i++) {
445		au_wr(au, 0, AU_REG_CODECCHN+(i<<2), 0, 4);
446		DELAY(10000);
447	}
448	if (1) {
449		au_wr(au, 0, AU_REG_CODECST, 0x8068, 4);
450		DELAY(10000);
451		au_wr(au, 0, AU_REG_CODECST, 0x00e8, 4);
452		DELAY(10000);
453	} else {
454		au_wr(au, 0, AU_REG_CODECST, 0x00a8, 4);
455 		DELAY(100000);
456		au_wr(au, 0, AU_REG_CODECST, 0x80a8, 4);
457		DELAY(100000);
458		au_wr(au, 0, AU_REG_CODECST, 0x80e8, 4);
459		DELAY(100000);
460		au_wr(au, 0, AU_REG_CODECST, 0x80a8, 4);
461		DELAY(100000);
462		au_wr(au, 0, AU_REG_CODECST, 0x00a8, 4);
463		DELAY(100000);
464		au_wr(au, 0, AU_REG_CODECST, 0x00e8, 4);
465		DELAY(100000);
466	}
467
468	/* init */
469	for (i=0; i<32; i++) {
470		au_wr(au, 0, AU_REG_CODECCHN+(i<<2), 0, 4);
471		DELAY(10000);
472	}
473	au_wr(au, 0, AU_REG_CODECST, 0xe8, 4);
474	DELAY(10000);
475	au_wr(au, 0, AU_REG_CODECEN, 0, 4);
476
477	/* setup codec */
478	i=j=0;
479	while (j<100 && (i & AU_CDC_READY)==0) {
480		i=au_rd(au, 0, AU_REG_CODECST, 4);
481		DELAY(1000);
482		j++;
483	}
484	if (j==100) device_printf(dev, "codec not ready, status 0x%x\n", i);
485
486   	/* init adb */
487	/*au->x5c=0;*/
488	for (i=0; i<32;  i++) au->x[i]=i+0x67;
489	for (i=0; i<128; i++) au->y[i]=0x7f;
490	for (i=0; i<128; i++) au->z[i]=0x1f;
491	au_wr(au, 0, AU_REG_ADB, 0, 4);
492	for (i=0; i<124; i++) au_wr(au, 0, AU_REG_RTBASE+(i<<2), 0xffffffff, 4);
493
494	/* test */
495	i=au_rd(au, 0, 0x107c0, 4);
496 	if (i!=0xdeadbeef) device_printf(dev, "dma check failed: 0x%x\n", i);
497
498	/* install mixer */
499	au_wr(au, 0, AU_REG_IRQGLOB,
500	      au_rd(au, 0, AU_REG_IRQGLOB, 4) | AU_IRQ_ENABLE, 4);
501	/* braindead but it's what the oss/linux driver does
502	 * for (i=0; i<0x80000000; i++) au_wr(au, 0, i<<2, 0, 4);
503	 */
504	au->routes[0]=au->routes[1]=au->routes[2]=au->routes[3]=0;
505	/*au->x1e4=0;*/
506
507	/* attach channel */
508	au_addroute(au, 0x11, 0x48, 0x02);
509	au_addroute(au, 0x11, 0x49, 0x03);
510	au_encodec(au, 0);
511	au_encodec(au, 1);
512
513	for (i=0; i<48; i++) au_wr(au, 0, 0xf800+(i<<2), 0x20, 4);
514	for (i=2; i<6; i++) au_wr(au, 0, 0xf800+(i<<2), 0, 4);
515	au_wr(au, 0, 0xf8c0, 0x0843, 4);
516	for (i=0; i<4; i++) au_clrfifo(au, i);
517
518	return (0);
519}
520
521static int
522au_testirq(struct au_info *au)
523{
524	au_wr(au, 0, AU_REG_UNK1, 0x80001000, 4);
525	au_wr(au, 0, AU_REG_IRQEN, 0x00001030, 4);
526	au_wr(au, 0, AU_REG_IRQSRC, 0x000007ff, 4);
527	DELAY(1000000);
528	if (au->interrupts==0) printf("pcm%d: irq test failed\n", au->unit);
529	/* this apparently generates an irq */
530	return 0;
531}
532
533static int
534au_pci_probe(device_t dev)
535{
536	if (pci_get_devid(dev) == AU8820_PCI_ID) {
537		device_set_desc(dev, "Aureal Vortex 8820");
538		return 0;
539	}
540
541	return ENXIO;
542}
543
544static int
545au_pci_attach(device_t dev)
546{
547	snddev_info    *d;
548	u_int32_t	data;
549	struct au_info *au;
550	int		type[10];
551	int		regid[10];
552	struct resource *reg[10];
553	int		i, j, mapped = 0;
554	int		irqid;
555	struct resource *irq = 0;
556	void		*ih = 0;
557	struct ac97_info *codec;
558	char 		status[SND_STATUSLEN];
559
560	d = device_get_softc(dev);
561	if ((au = malloc(sizeof(*au), M_DEVBUF, M_NOWAIT)) == NULL) {
562		device_printf(dev, "cannot allocate softc\n");
563		return ENXIO;
564	}
565
566	bzero(au, sizeof(*au));
567	au->unit = device_get_unit(dev);
568
569	data = pci_read_config(dev, PCIR_COMMAND, 2);
570	data |= (PCIM_CMD_PORTEN|PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
571	pci_write_config(dev, PCIR_COMMAND, data, 2);
572	data = pci_read_config(dev, PCIR_COMMAND, 2);
573
574	j=0;
575	/* XXX dfr: is this strictly necessary? */
576	for (i=0; i<PCI_MAXMAPS_0; i++) {
577#if 0
578		/* Slapped wrist: config_id and map are private structures */
579		if (bootverbose) {
580			printf("pcm%d: map %d - allocating ", unit, i+1);
581			printf("0x%x bytes of ", 1<<config_id->map[i].ln2size);
582			printf("%s space ", (config_id->map[i].type & PCI_MAPPORT)?
583					    "io" : "memory");
584			printf("at 0x%x...", config_id->map[i].base);
585		}
586#endif
587		regid[j] = PCIR_MAPS + i*4;
588		type[j] = SYS_RES_MEMORY;
589		reg[j] = bus_alloc_resource(dev, type[j], &regid[j],
590					    0, ~0, 1, RF_ACTIVE);
591		if (!reg[j]) {
592			type[j] = SYS_RES_IOPORT;
593			reg[j] = bus_alloc_resource(dev, type[j], &regid[j],
594						    0, ~0, 1, RF_ACTIVE);
595		}
596		if (reg[j]) {
597			au->st[i] = rman_get_bustag(reg[j]);
598			au->sh[i] = rman_get_bushandle(reg[j]);
599			mapped++;
600		}
601#if 0
602		if (bootverbose) printf("%s\n", mapped? "ok" : "failed");
603#endif
604		if (mapped) j++;
605		if (j == 10) {
606			/* XXX */
607			device_printf(dev, "too many resources");
608			goto bad;
609		}
610	}
611
612#if 0
613	if (j < config_id->nummaps) {
614		printf("pcm%d: unable to map a required resource\n", unit);
615		free(au, M_DEVBUF);
616		return;
617	}
618#endif
619
620	au_wr(au, 0, AU_REG_IRQEN, 0, 4);
621
622	irqid = 0;
623	irq = bus_alloc_resource(dev, SYS_RES_IRQ, &irqid,
624				 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
625	if (!irq
626	    || bus_setup_intr(dev, irq, INTR_TYPE_TTY, au_intr, au, &ih)) {
627		device_printf(dev, "unable to map interrupt\n");
628		goto bad;
629	}
630
631	if (au_testirq(au)) device_printf(dev, "irq test failed\n");
632
633	if (au_init(dev, au) == -1) {
634		device_printf(dev, "unable to initialize the card\n");
635		goto bad;
636	}
637
638	codec = ac97_create(au, au_rdcd, au_wrcd);
639	if (codec == NULL) goto bad;
640	mixer_init(d, &ac97_mixer, codec);
641
642	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
643		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
644		/*highaddr*/BUS_SPACE_MAXADDR,
645		/*filter*/NULL, /*filterarg*/NULL,
646		/*maxsize*/AU_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff,
647		/*flags*/0, &au->parent_dmat) != 0) {
648		device_printf(dev, "unable to create dma tag\n");
649		goto bad;
650	}
651
652	snprintf(status, SND_STATUSLEN, "at %s 0x%lx irq %ld",
653		 (type[0] == SYS_RES_IOPORT)? "io" : "memory",
654		 rman_get_start(reg[0]), rman_get_start(irq));
655
656	if (pcm_register(dev, au, 1, 1)) goto bad;
657	/* pcm_addchan(dev, PCMDIR_REC, &au_chantemplate, au); */
658	pcm_addchan(dev, PCMDIR_PLAY, &au_chantemplate, au);
659	pcm_setstatus(dev, status);
660
661	return 0;
662
663 bad:
664	if (au) free(au, M_DEVBUF);
665	for (i = 0; i < j; i++)
666		bus_release_resource(dev, type[i], regid[i], reg[i]);
667	if (ih) bus_teardown_intr(dev, irq, ih);
668	if (irq) bus_release_resource(dev, SYS_RES_IRQ, irqid, irq);
669	return ENXIO;
670}
671
672static device_method_t au_methods[] = {
673	/* Device interface */
674	DEVMETHOD(device_probe,		au_pci_probe),
675	DEVMETHOD(device_attach,	au_pci_attach),
676
677	{ 0, 0 }
678};
679
680static driver_t au_driver = {
681	"pcm",
682	au_methods,
683	sizeof(snddev_info),
684};
685
686static devclass_t pcm_devclass;
687
688DRIVER_MODULE(au, pci, au_driver, pcm_devclass, 0, 0);
689