xref: /freebsd/sys/dev/sound/pci/fm801.c (revision 5bb3134a8c21cb87b30e135ef168483f0333dabb)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2000 Dmitry Dicky diwil@dataart.com
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, WHETHER IN 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 THE POSSIBILITY 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/pci/pcireg.h>
36 #include <dev/pci/pcivar.h>
37 
38 SND_DECLARE_FILE("$FreeBSD$");
39 
40 #define PCI_VENDOR_FORTEMEDIA	0x1319
41 #define PCI_DEVICE_FORTEMEDIA1	0x08011319	/* Audio controller */
42 #define PCI_DEVICE_FORTEMEDIA2	0x08021319	/* Joystick controller */
43 
44 #define FM_PCM_VOLUME           0x00
45 #define FM_FM_VOLUME            0x02
46 #define FM_I2S_VOLUME           0x04
47 #define FM_RECORD_SOURCE        0x06
48 
49 #define FM_PLAY_CTL             0x08
50 #define  FM_PLAY_RATE_MASK              0x0f00
51 #define  FM_PLAY_BUF1_LAST              0x0001
52 #define  FM_PLAY_BUF2_LAST              0x0002
53 #define  FM_PLAY_START                  0x0020
54 #define  FM_PLAY_PAUSE                  0x0040
55 #define  FM_PLAY_STOPNOW                0x0080
56 #define  FM_PLAY_16BIT                  0x4000
57 #define  FM_PLAY_STEREO                 0x8000
58 
59 #define FM_PLAY_DMALEN          0x0a
60 #define FM_PLAY_DMABUF1         0x0c
61 #define FM_PLAY_DMABUF2         0x10
62 
63 #define FM_REC_CTL              0x14
64 #define  FM_REC_RATE_MASK               0x0f00
65 #define  FM_REC_BUF1_LAST               0x0001
66 #define  FM_REC_BUF2_LAST               0x0002
67 #define  FM_REC_START                   0x0020
68 #define  FM_REC_PAUSE                   0x0040
69 #define  FM_REC_STOPNOW                 0x0080
70 #define  FM_REC_16BIT                   0x4000
71 #define  FM_REC_STEREO                  0x8000
72 
73 #define FM_REC_DMALEN           0x16
74 #define FM_REC_DMABUF1          0x18
75 #define FM_REC_DMABUF2          0x1c
76 
77 #define FM_CODEC_CTL            0x22
78 #define FM_VOLUME               0x26
79 #define  FM_VOLUME_MUTE                 0x8000
80 
81 #define FM_CODEC_CMD            0x2a
82 #define  FM_CODEC_CMD_READ              0x0080
83 #define  FM_CODEC_CMD_VALID             0x0100
84 #define  FM_CODEC_CMD_BUSY              0x0200
85 
86 #define FM_CODEC_DATA           0x2c
87 
88 #define FM_IO_CTL               0x52
89 #define FM_CARD_CTL             0x54
90 
91 #define FM_INTMASK              0x56
92 #define  FM_INTMASK_PLAY                0x0001
93 #define  FM_INTMASK_REC                 0x0002
94 #define  FM_INTMASK_VOL                 0x0040
95 #define  FM_INTMASK_MPU                 0x0080
96 
97 #define FM_INTSTATUS            0x5a
98 #define  FM_INTSTATUS_PLAY              0x0100
99 #define  FM_INTSTATUS_REC               0x0200
100 #define  FM_INTSTATUS_VOL               0x4000
101 #define  FM_INTSTATUS_MPU               0x8000
102 
103 #define FM801_DEFAULT_BUFSZ	4096	/* Other values do not work!!! */
104 
105 /* debug purposes */
106 #define DPRINT	 if(0) printf
107 
108 /*
109 static int fm801ch_setup(struct pcm_channel *c);
110 */
111 
112 static u_int32_t fmts[] = {
113 	SND_FORMAT(AFMT_U8, 1, 0),
114 	SND_FORMAT(AFMT_U8, 2, 0),
115 	SND_FORMAT(AFMT_S16_LE, 1, 0),
116 	SND_FORMAT(AFMT_S16_LE, 2, 0),
117 	0
118 };
119 
120 static struct pcmchan_caps fm801ch_caps = {
121 	5500, 48000,
122 	fmts, 0
123 };
124 
125 struct fm801_info;
126 
127 struct fm801_chinfo {
128 	struct fm801_info	*parent;
129 	struct pcm_channel	*channel;
130 	struct snd_dbuf		*buffer;
131 	u_int32_t		spd, dir, fmt;  /* speed, direction, format */
132 	u_int32_t		shift;
133 };
134 
135 struct fm801_info {
136 	int			type;
137 	bus_space_tag_t		st;
138 	bus_space_handle_t	sh;
139 	bus_dma_tag_t		parent_dmat;
140 
141 	device_t		dev;
142 	int			num;
143 	u_int32_t		unit;
144 
145 	struct resource		*reg, *irq;
146 	int			regtype, regid, irqid;
147 	void			*ih;
148 
149 	u_int32_t		play_flip,
150 				play_nextblk,
151 				play_start,
152 				play_blksize,
153 				play_fmt,
154 				play_shift,
155 				play_size;
156 
157 	u_int32_t		rec_flip,
158 				rec_nextblk,
159 				rec_start,
160 				rec_blksize,
161 				rec_fmt,
162 				rec_shift,
163 				rec_size;
164 
165 	unsigned int		bufsz;
166 
167 	struct fm801_chinfo	pch, rch;
168 
169 	device_t		radio;
170 };
171 
172 /* Bus Read / Write routines */
173 static u_int32_t
174 fm801_rd(struct fm801_info *fm801, int regno, int size)
175 {
176 	switch(size) {
177 	case 1:
178 		return (bus_space_read_1(fm801->st, fm801->sh, regno));
179 	case 2:
180 		return (bus_space_read_2(fm801->st, fm801->sh, regno));
181 	case 4:
182 		return (bus_space_read_4(fm801->st, fm801->sh, regno));
183 	default:
184 		return 0xffffffff;
185 	}
186 }
187 
188 static void
189 fm801_wr(struct fm801_info *fm801, int regno, u_int32_t data, int size)
190 {
191 
192 	switch(size) {
193 	case 1:
194 		bus_space_write_1(fm801->st, fm801->sh, regno, data);
195 		break;
196 	case 2:
197 		bus_space_write_2(fm801->st, fm801->sh, regno, data);
198 		break;
199 	case 4:
200 		bus_space_write_4(fm801->st, fm801->sh, regno, data);
201 		break;
202 	}
203 }
204 
205 /* -------------------------------------------------------------------- */
206 /*
207  *  ac97 codec routines
208  */
209 #define TIMO 50
210 static int
211 fm801_rdcd(kobj_t obj, void *devinfo, int regno)
212 {
213 	struct fm801_info *fm801 = (struct fm801_info *)devinfo;
214 	int i;
215 
216 	for (i = 0; i < TIMO && fm801_rd(fm801,FM_CODEC_CMD,2) & FM_CODEC_CMD_BUSY; i++) {
217 		DELAY(10000);
218 		DPRINT("fm801 rdcd: 1 - DELAY\n");
219 	}
220 	if (i >= TIMO) {
221 		printf("fm801 rdcd: codec busy\n");
222 		return 0;
223 	}
224 
225 	fm801_wr(fm801,FM_CODEC_CMD, regno|FM_CODEC_CMD_READ,2);
226 
227 	for (i = 0; i < TIMO && !(fm801_rd(fm801,FM_CODEC_CMD,2) & FM_CODEC_CMD_VALID); i++)
228 	{
229 		DELAY(10000);
230 		DPRINT("fm801 rdcd: 2 - DELAY\n");
231 	}
232 	if (i >= TIMO) {
233 		printf("fm801 rdcd: write codec invalid\n");
234 		return 0;
235 	}
236 
237 	return fm801_rd(fm801,FM_CODEC_DATA,2);
238 }
239 
240 static int
241 fm801_wrcd(kobj_t obj, void *devinfo, int regno, u_int32_t data)
242 {
243 	struct fm801_info *fm801 = (struct fm801_info *)devinfo;
244 	int i;
245 
246 	DPRINT("fm801_wrcd reg 0x%x val 0x%x\n",regno, data);
247 /*
248 	if(regno == AC97_REG_RECSEL)	return;
249 */
250 	/* Poll until codec is ready */
251 	for (i = 0; i < TIMO && fm801_rd(fm801,FM_CODEC_CMD,2) & FM_CODEC_CMD_BUSY; i++) {
252 		DELAY(10000);
253 		DPRINT("fm801 rdcd: 1 - DELAY\n");
254 	}
255 	if (i >= TIMO) {
256 		printf("fm801 wrcd: read codec busy\n");
257 		return -1;
258 	}
259 
260 	fm801_wr(fm801,FM_CODEC_DATA,data, 2);
261 	fm801_wr(fm801,FM_CODEC_CMD, regno,2);
262 
263 	/* wait until codec is ready */
264 	for (i = 0; i < TIMO && fm801_rd(fm801,FM_CODEC_CMD,2) & FM_CODEC_CMD_BUSY; i++) {
265 		DELAY(10000);
266 		DPRINT("fm801 wrcd: 2 - DELAY\n");
267 	}
268 	if (i >= TIMO) {
269 		printf("fm801 wrcd: read codec busy\n");
270 		return -1;
271 	}
272 	DPRINT("fm801 wrcd release reg 0x%x val 0x%x\n",regno, data);
273 	return 0;
274 }
275 
276 static kobj_method_t fm801_ac97_methods[] = {
277     	KOBJMETHOD(ac97_read,		fm801_rdcd),
278     	KOBJMETHOD(ac97_write,		fm801_wrcd),
279 	DEVMETHOD_END
280 };
281 AC97_DECLARE(fm801_ac97);
282 
283 /* -------------------------------------------------------------------- */
284 
285 /*
286  * The interrupt handler
287  */
288 static void
289 fm801_intr(void *p)
290 {
291 	struct fm801_info 	*fm801 = (struct fm801_info *)p;
292 	u_int32_t       	intsrc = fm801_rd(fm801, FM_INTSTATUS, 2);
293 
294 	DPRINT("\nfm801_intr intsrc 0x%x ", intsrc);
295 
296 	if(intsrc & FM_INTSTATUS_PLAY) {
297 		fm801->play_flip++;
298 		if(fm801->play_flip & 1) {
299 			fm801_wr(fm801, FM_PLAY_DMABUF1, fm801->play_start,4);
300 		} else
301 			fm801_wr(fm801, FM_PLAY_DMABUF2, fm801->play_nextblk,4);
302 		chn_intr(fm801->pch.channel);
303 	}
304 
305 	if(intsrc & FM_INTSTATUS_REC) {
306 		fm801->rec_flip++;
307 		if(fm801->rec_flip & 1) {
308 			fm801_wr(fm801, FM_REC_DMABUF1, fm801->rec_start,4);
309 		} else
310 			fm801_wr(fm801, FM_REC_DMABUF2, fm801->rec_nextblk,4);
311 		chn_intr(fm801->rch.channel);
312 	}
313 
314 	if ( intsrc & FM_INTSTATUS_MPU ) {
315 		/* This is a TODOish thing... */
316 		fm801_wr(fm801, FM_INTSTATUS, intsrc & FM_INTSTATUS_MPU,2);
317 	}
318 
319 	if ( intsrc & FM_INTSTATUS_VOL ) {
320 		/* This is a TODOish thing... */
321 		fm801_wr(fm801, FM_INTSTATUS, intsrc & FM_INTSTATUS_VOL,2);
322 	}
323 
324 	DPRINT("fm801_intr clear\n\n");
325 	fm801_wr(fm801, FM_INTSTATUS, intsrc & (FM_INTSTATUS_PLAY | FM_INTSTATUS_REC), 2);
326 }
327 
328 /* -------------------------------------------------------------------- */
329 /* channel interface */
330 static void *
331 fm801ch_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
332 {
333 	struct fm801_info *fm801 = (struct fm801_info *)devinfo;
334 	struct fm801_chinfo *ch = (dir == PCMDIR_PLAY)? &fm801->pch : &fm801->rch;
335 
336 	DPRINT("fm801ch_init, direction = %d\n", dir);
337 	ch->parent = fm801;
338 	ch->channel = c;
339 	ch->buffer = b;
340 	ch->dir = dir;
341 	if (sndbuf_alloc(ch->buffer, fm801->parent_dmat, 0, fm801->bufsz) != 0)
342 		return NULL;
343 	return (void *)ch;
344 }
345 
346 static int
347 fm801ch_setformat(kobj_t obj, void *data, u_int32_t format)
348 {
349 	struct fm801_chinfo *ch = data;
350 	struct fm801_info *fm801 = ch->parent;
351 
352 	DPRINT("fm801ch_setformat 0x%x : %s, %s, %s, %s\n", format,
353 		(AFMT_CHANNEL(format) > 1)?"stereo":"mono",
354 		(format & AFMT_16BIT) ? "16bit":"8bit",
355 		(format & AFMT_SIGNED)? "signed":"unsigned",
356 		(format & AFMT_BIGENDIAN)?"bigendiah":"littleendian" );
357 
358 	if(ch->dir == PCMDIR_PLAY) {
359 		fm801->play_fmt =
360 		    (AFMT_CHANNEL(format) > 1)? FM_PLAY_STEREO : 0;
361 		fm801->play_fmt |= (format & AFMT_16BIT) ? FM_PLAY_16BIT : 0;
362 		return 0;
363 	}
364 
365 	if(ch->dir == PCMDIR_REC ) {
366 		fm801->rec_fmt = (AFMT_CHANNEL(format) > 1)? FM_REC_STEREO:0;
367 		fm801->rec_fmt |= (format & AFMT_16BIT) ? FM_PLAY_16BIT : 0;
368 		return 0;
369 	}
370 
371 	return 0;
372 }
373 
374 struct {
375 	u_int32_t limit;
376 	u_int32_t rate;
377 } fm801_rates[11] = {
378 	{  6600,  5500 },
379 	{  8750,  8000 },
380 	{ 10250,  9600 },
381 	{ 13200, 11025 },
382 	{ 17500, 16000 },
383 	{ 20500, 19200 },
384 	{ 26500, 22050 },
385 	{ 35000, 32000 },
386 	{ 41000, 38400 },
387 	{ 46000, 44100 },
388 	{ 48000, 48000 },
389 /* anything above -> 48000 */
390 };
391 
392 static u_int32_t
393 fm801ch_setspeed(kobj_t obj, void *data, u_int32_t speed)
394 {
395 	struct fm801_chinfo *ch = data;
396 	struct fm801_info *fm801 = ch->parent;
397 	int i;
398 
399 	for (i = 0; i < 10 && fm801_rates[i].limit <= speed; i++) ;
400 
401 	if(ch->dir == PCMDIR_PLAY) {
402 		fm801->pch.spd = fm801_rates[i].rate;
403 		fm801->play_shift = (i<<8);
404 		fm801->play_shift &= FM_PLAY_RATE_MASK;
405 	}
406 
407 	if(ch->dir == PCMDIR_REC ) {
408 		fm801->rch.spd = fm801_rates[i].rate;
409 		fm801->rec_shift = (i<<8);
410 		fm801->rec_shift &= FM_REC_RATE_MASK;
411 	}
412 
413 	ch->spd = fm801_rates[i].rate;
414 
415 	return fm801_rates[i].rate;
416 }
417 
418 static u_int32_t
419 fm801ch_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
420 {
421 	struct fm801_chinfo *ch = data;
422 	struct fm801_info *fm801 = ch->parent;
423 
424 	/*
425 	 * Don't mind for play_flip, set the blocksize to the
426 	 * desired values in any case - otherwise sound playback
427 	 * breaks here.
428 	 */
429 	if(ch->dir == PCMDIR_PLAY)
430 		fm801->play_blksize = blocksize;
431 
432 	if(ch->dir == PCMDIR_REC)
433 		fm801->rec_blksize = blocksize;
434 
435 	DPRINT("fm801ch_setblocksize %d (dir %d)\n",blocksize, ch->dir);
436 
437 	return blocksize;
438 }
439 
440 static int
441 fm801ch_trigger(kobj_t obj, void *data, int go)
442 {
443 	struct fm801_chinfo *ch = data;
444 	struct fm801_info *fm801 = ch->parent;
445 	u_int32_t baseaddr = sndbuf_getbufaddr(ch->buffer);
446 	u_int32_t k1;
447 
448 	DPRINT("fm801ch_trigger go %d , ", go);
449 
450 	if (!PCMTRIG_COMMON(go))
451 		return 0;
452 
453 	if (ch->dir == PCMDIR_PLAY) {
454 		if (go == PCMTRIG_START) {
455 			fm801->play_start = baseaddr;
456 			fm801->play_nextblk = fm801->play_start + fm801->play_blksize;
457 			fm801->play_flip = 0;
458 			fm801_wr(fm801, FM_PLAY_DMALEN, fm801->play_blksize - 1, 2);
459 			fm801_wr(fm801, FM_PLAY_DMABUF1,fm801->play_start,4);
460 			fm801_wr(fm801, FM_PLAY_DMABUF2,fm801->play_nextblk,4);
461 			fm801_wr(fm801, FM_PLAY_CTL,
462 					FM_PLAY_START | FM_PLAY_STOPNOW | fm801->play_fmt | fm801->play_shift,
463 					2 );
464 			} else {
465 			fm801->play_flip = 0;
466 			k1 = fm801_rd(fm801, FM_PLAY_CTL,2);
467 			fm801_wr(fm801, FM_PLAY_CTL,
468 				(k1 & ~(FM_PLAY_STOPNOW | FM_PLAY_START)) |
469 				FM_PLAY_BUF1_LAST | FM_PLAY_BUF2_LAST, 2 );
470 		}
471 	} else if(ch->dir == PCMDIR_REC) {
472 		if (go == PCMTRIG_START) {
473 			fm801->rec_start = baseaddr;
474 			fm801->rec_nextblk = fm801->rec_start + fm801->rec_blksize;
475 			fm801->rec_flip = 0;
476 			fm801_wr(fm801, FM_REC_DMALEN, fm801->rec_blksize - 1, 2);
477 			fm801_wr(fm801, FM_REC_DMABUF1,fm801->rec_start,4);
478 			fm801_wr(fm801, FM_REC_DMABUF2,fm801->rec_nextblk,4);
479 			fm801_wr(fm801, FM_REC_CTL,
480 					FM_REC_START | FM_REC_STOPNOW | fm801->rec_fmt | fm801->rec_shift,
481 					2 );
482 			} else {
483 			fm801->rec_flip = 0;
484 			k1 = fm801_rd(fm801, FM_REC_CTL,2);
485 			fm801_wr(fm801, FM_REC_CTL,
486 				(k1 & ~(FM_REC_STOPNOW | FM_REC_START)) |
487 				FM_REC_BUF1_LAST | FM_REC_BUF2_LAST, 2);
488 		}
489 	}
490 
491 	return 0;
492 }
493 
494 /* Almost ALSA copy */
495 static u_int32_t
496 fm801ch_getptr(kobj_t obj, void *data)
497 {
498 	struct fm801_chinfo *ch = data;
499 	struct fm801_info *fm801 = ch->parent;
500 	u_int32_t result = 0;
501 
502 	if (ch->dir == PCMDIR_PLAY) {
503 		result = fm801_rd(fm801,
504 			(fm801->play_flip&1) ?
505 			FM_PLAY_DMABUF2:FM_PLAY_DMABUF1, 4) - fm801->play_start;
506 	}
507 
508 	if (ch->dir == PCMDIR_REC) {
509 		result = fm801_rd(fm801,
510 			(fm801->rec_flip&1) ?
511 			FM_REC_DMABUF2:FM_REC_DMABUF1, 4) - fm801->rec_start;
512 	}
513 
514 	return result;
515 }
516 
517 static struct pcmchan_caps *
518 fm801ch_getcaps(kobj_t obj, void *data)
519 {
520 	return &fm801ch_caps;
521 }
522 
523 static kobj_method_t fm801ch_methods[] = {
524     	KOBJMETHOD(channel_init,		fm801ch_init),
525     	KOBJMETHOD(channel_setformat,		fm801ch_setformat),
526     	KOBJMETHOD(channel_setspeed,		fm801ch_setspeed),
527     	KOBJMETHOD(channel_setblocksize,	fm801ch_setblocksize),
528     	KOBJMETHOD(channel_trigger,		fm801ch_trigger),
529     	KOBJMETHOD(channel_getptr,		fm801ch_getptr),
530     	KOBJMETHOD(channel_getcaps,		fm801ch_getcaps),
531 	DEVMETHOD_END
532 };
533 CHANNEL_DECLARE(fm801ch);
534 
535 /* -------------------------------------------------------------------- */
536 
537 /*
538  *  Init routine is taken from an original NetBSD driver
539  */
540 static int
541 fm801_init(struct fm801_info *fm801)
542 {
543 	u_int32_t k1;
544 
545 	/* reset codec */
546 	fm801_wr(fm801, FM_CODEC_CTL, 0x0020,2);
547 	DELAY(100000);
548 	fm801_wr(fm801, FM_CODEC_CTL, 0x0000,2);
549 	DELAY(100000);
550 
551 	fm801_wr(fm801, FM_PCM_VOLUME, 0x0808,2);
552 	fm801_wr(fm801, FM_FM_VOLUME, 0x0808,2);
553 	fm801_wr(fm801, FM_I2S_VOLUME, 0x0808,2);
554 	fm801_wr(fm801, 0x40,0x107f,2);	/* enable legacy audio */
555 
556 	fm801_wr((void *)fm801, FM_RECORD_SOURCE, 0x0000,2);
557 
558 	/* Unmask playback, record and mpu interrupts, mask the rest */
559 	k1 = fm801_rd((void *)fm801, FM_INTMASK,2);
560 	fm801_wr(fm801, FM_INTMASK,
561 		(k1 & ~(FM_INTMASK_PLAY | FM_INTMASK_REC | FM_INTMASK_MPU)) |
562 		FM_INTMASK_VOL,2);
563 	fm801_wr(fm801, FM_INTSTATUS,
564 		FM_INTSTATUS_PLAY | FM_INTSTATUS_REC | FM_INTSTATUS_MPU |
565 		FM_INTSTATUS_VOL,2);
566 
567 	DPRINT("FM801 init Ok\n");
568 	return 0;
569 }
570 
571 static int
572 fm801_pci_attach(device_t dev)
573 {
574 	struct ac97_info 	*codec = NULL;
575 	struct fm801_info 	*fm801;
576 	int 			i;
577 	int 			mapped = 0;
578 	char 			status[SND_STATUSLEN];
579 
580 	fm801 = malloc(sizeof(*fm801), M_DEVBUF, M_WAITOK | M_ZERO);
581 	fm801->type = pci_get_devid(dev);
582 
583 	pci_enable_busmaster(dev);
584 
585 	for (i = 0; (mapped == 0) && (i < PCI_MAXMAPS_0); i++) {
586 		fm801->regid = PCIR_BAR(i);
587 		fm801->regtype = SYS_RES_MEMORY;
588 		fm801->reg = bus_alloc_resource_any(dev, fm801->regtype,
589 						    &fm801->regid, RF_ACTIVE);
590 		if(!fm801->reg)
591 		{
592 			fm801->regtype = SYS_RES_IOPORT;
593 			fm801->reg = bus_alloc_resource_any(dev,
594 							    fm801->regtype,
595 							    &fm801->regid,
596 							    RF_ACTIVE);
597 		}
598 
599 		if(fm801->reg) {
600 			fm801->st = rman_get_bustag(fm801->reg);
601 			fm801->sh = rman_get_bushandle(fm801->reg);
602 			mapped++;
603 		}
604 	}
605 
606 	if (mapped == 0) {
607 		device_printf(dev, "unable to map register space\n");
608 		goto oops;
609 	}
610 
611 	fm801->bufsz = pcm_getbuffersize(dev, 4096, FM801_DEFAULT_BUFSZ, 65536);
612 
613 	fm801_init(fm801);
614 
615 	codec = AC97_CREATE(dev, fm801, fm801_ac97);
616 	if (codec == NULL) goto oops;
617 
618 	if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto oops;
619 
620 	fm801->irqid = 0;
621 	fm801->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fm801->irqid,
622 					    RF_ACTIVE | RF_SHAREABLE);
623 	if (!fm801->irq ||
624 	    snd_setup_intr(dev, fm801->irq, 0, fm801_intr, fm801, &fm801->ih)) {
625 		device_printf(dev, "unable to map interrupt\n");
626 		goto oops;
627 	}
628 
629 	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
630 		/*boundary*/0,
631 		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
632 		/*highaddr*/BUS_SPACE_MAXADDR,
633 		/*filter*/NULL, /*filterarg*/NULL,
634 		/*maxsize*/fm801->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
635 		/*flags*/0, /*lockfunc*/NULL, /*lockarg*/NULL,
636 		&fm801->parent_dmat) != 0) {
637 		device_printf(dev, "unable to create dma tag\n");
638 		goto oops;
639 	}
640 
641 	snprintf(status, 64, "at %s 0x%jx irq %jd %s",
642 		(fm801->regtype == SYS_RES_IOPORT)? "io" : "memory",
643 		rman_get_start(fm801->reg), rman_get_start(fm801->irq),PCM_KLDSTRING(snd_fm801));
644 
645 #define FM801_MAXPLAYCH	1
646 	if (pcm_register(dev, fm801, FM801_MAXPLAYCH, 1)) goto oops;
647 	pcm_addchan(dev, PCMDIR_PLAY, &fm801ch_class, fm801);
648 	pcm_addchan(dev, PCMDIR_REC, &fm801ch_class, fm801);
649 	pcm_setstatus(dev, status);
650 
651 	fm801->radio = device_add_child(dev, "radio", -1);
652 	bus_generic_attach(dev);
653 
654 	return 0;
655 
656 oops:
657 	if (codec) ac97_destroy(codec);
658 	if (fm801->reg) bus_release_resource(dev, fm801->regtype, fm801->regid, fm801->reg);
659 	if (fm801->ih) bus_teardown_intr(dev, fm801->irq, fm801->ih);
660 	if (fm801->irq) bus_release_resource(dev, SYS_RES_IRQ, fm801->irqid, fm801->irq);
661 	if (fm801->parent_dmat) bus_dma_tag_destroy(fm801->parent_dmat);
662 	free(fm801, M_DEVBUF);
663 	return ENXIO;
664 }
665 
666 static int
667 fm801_pci_detach(device_t dev)
668 {
669 	int r;
670 	struct fm801_info *fm801;
671 
672 	DPRINT("Forte Media FM801 detach\n");
673 
674 	fm801 = pcm_getdevinfo(dev);
675 
676 	r = bus_generic_detach(dev);
677 	if (r)
678 		return r;
679 	if (fm801->radio != NULL) {
680 		r = device_delete_child(dev, fm801->radio);
681 		if (r)
682 			return r;
683 		fm801->radio = NULL;
684 	}
685 
686 	r = pcm_unregister(dev);
687 	if (r)
688 		return r;
689 
690 	bus_release_resource(dev, fm801->regtype, fm801->regid, fm801->reg);
691 	bus_teardown_intr(dev, fm801->irq, fm801->ih);
692 	bus_release_resource(dev, SYS_RES_IRQ, fm801->irqid, fm801->irq);
693 	bus_dma_tag_destroy(fm801->parent_dmat);
694 	free(fm801, M_DEVBUF);
695 	return 0;
696 }
697 
698 static int
699 fm801_pci_probe( device_t dev )
700 {
701 	int id;
702 
703 	if ((id = pci_get_devid(dev)) == PCI_DEVICE_FORTEMEDIA1 ) {
704 		device_set_desc(dev, "Forte Media FM801 Audio Controller");
705 		return BUS_PROBE_DEFAULT;
706 	}
707 /*
708 	if ((id = pci_get_devid(dev)) == PCI_DEVICE_FORTEMEDIA2 ) {
709 		device_set_desc(dev, "Forte Media FM801 Joystick (Not Supported)");
710 		return ENXIO;
711 	}
712 */
713 	return ENXIO;
714 }
715 
716 static struct resource *
717 fm801_alloc_resource(device_t bus, device_t child, int type, int *rid,
718 		     rman_res_t start, rman_res_t end, rman_res_t count,
719 		     u_int flags)
720 {
721 	struct fm801_info *fm801;
722 
723 	fm801 = pcm_getdevinfo(bus);
724 
725 	if (type == SYS_RES_IOPORT && *rid == PCIR_BAR(0))
726 		return (fm801->reg);
727 
728 	return (NULL);
729 }
730 
731 static int
732 fm801_release_resource(device_t bus, device_t child, int type, int rid,
733 		       struct resource *r)
734 {
735 	return (0);
736 }
737 
738 static device_method_t fm801_methods[] = {
739 	/* Device interface */
740 	DEVMETHOD(device_probe,		fm801_pci_probe),
741 	DEVMETHOD(device_attach,	fm801_pci_attach),
742 	DEVMETHOD(device_detach,	fm801_pci_detach),
743 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
744 	DEVMETHOD(device_suspend,	bus_generic_suspend),
745 	DEVMETHOD(device_resume,	bus_generic_resume),
746 
747 	/* Bus interface */
748 	DEVMETHOD(bus_alloc_resource,	fm801_alloc_resource),
749 	DEVMETHOD(bus_release_resource,	fm801_release_resource),
750 	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
751 	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
752 
753 	DEVMETHOD_END
754 };
755 
756 static driver_t fm801_driver = {
757 	"pcm",
758 	fm801_methods,
759 	PCM_SOFTC_SIZE,
760 };
761 
762 DRIVER_MODULE(snd_fm801, pci, fm801_driver, pcm_devclass, 0, 0);
763 MODULE_DEPEND(snd_fm801, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
764 MODULE_VERSION(snd_fm801, 1);
765