xref: /freebsd/sys/dev/sound/pci/fm801.c (revision 86c9d9918f1db7cdd968b60f8902466887bcd9e9)
1 /*-
2  * Copyright (c) 2000 Dmitry Dicky diwil@dataart.com
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 
27 #ifdef HAVE_KERNEL_OPTION_HEADERS
28 #include "opt_snd.h"
29 #endif
30 
31 #include <dev/sound/pcm/sound.h>
32 #include <dev/sound/pcm/ac97.h>
33 #include <dev/pci/pcireg.h>
34 #include <dev/pci/pcivar.h>
35 
36 SND_DECLARE_FILE("$FreeBSD$");
37 
38 #define PCI_VENDOR_FORTEMEDIA	0x1319
39 #define PCI_DEVICE_FORTEMEDIA1	0x08011319	/* Audio controller */
40 #define PCI_DEVICE_FORTEMEDIA2	0x08021319	/* Joystick controller */
41 
42 #define FM_PCM_VOLUME           0x00
43 #define FM_FM_VOLUME            0x02
44 #define FM_I2S_VOLUME           0x04
45 #define FM_RECORD_SOURCE        0x06
46 
47 #define FM_PLAY_CTL             0x08
48 #define  FM_PLAY_RATE_MASK              0x0f00
49 #define  FM_PLAY_BUF1_LAST              0x0001
50 #define  FM_PLAY_BUF2_LAST              0x0002
51 #define  FM_PLAY_START                  0x0020
52 #define  FM_PLAY_PAUSE                  0x0040
53 #define  FM_PLAY_STOPNOW                0x0080
54 #define  FM_PLAY_16BIT                  0x4000
55 #define  FM_PLAY_STEREO                 0x8000
56 
57 #define FM_PLAY_DMALEN          0x0a
58 #define FM_PLAY_DMABUF1         0x0c
59 #define FM_PLAY_DMABUF2         0x10
60 
61 
62 #define FM_REC_CTL              0x14
63 #define  FM_REC_RATE_MASK               0x0f00
64 #define  FM_REC_BUF1_LAST               0x0001
65 #define  FM_REC_BUF2_LAST               0x0002
66 #define  FM_REC_START                   0x0020
67 #define  FM_REC_PAUSE                   0x0040
68 #define  FM_REC_STOPNOW                 0x0080
69 #define  FM_REC_16BIT                   0x4000
70 #define  FM_REC_STEREO                  0x8000
71 
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 	register int i;
398 
399 
400 	for (i = 0; i < 10 && fm801_rates[i].limit <= speed; i++) ;
401 
402 	if(ch->dir == PCMDIR_PLAY) {
403 		fm801->pch.spd = fm801_rates[i].rate;
404 		fm801->play_shift = (i<<8);
405 		fm801->play_shift &= FM_PLAY_RATE_MASK;
406 	}
407 
408 	if(ch->dir == PCMDIR_REC ) {
409 		fm801->rch.spd = fm801_rates[i].rate;
410 		fm801->rec_shift = (i<<8);
411 		fm801->rec_shift &= FM_REC_RATE_MASK;
412 	}
413 
414 	ch->spd = fm801_rates[i].rate;
415 
416 	return fm801_rates[i].rate;
417 }
418 
419 static u_int32_t
420 fm801ch_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
421 {
422 	struct fm801_chinfo *ch = data;
423 	struct fm801_info *fm801 = ch->parent;
424 
425 	/*
426 	 * Don't mind for play_flip, set the blocksize to the
427 	 * desired values in any case - otherwise sound playback
428 	 * breaks here.
429 	 */
430 	if(ch->dir == PCMDIR_PLAY)
431 		fm801->play_blksize = blocksize;
432 
433 	if(ch->dir == PCMDIR_REC)
434 		fm801->rec_blksize = blocksize;
435 
436 	DPRINT("fm801ch_setblocksize %d (dir %d)\n",blocksize, ch->dir);
437 
438 	return blocksize;
439 }
440 
441 static int
442 fm801ch_trigger(kobj_t obj, void *data, int go)
443 {
444 	struct fm801_chinfo *ch = data;
445 	struct fm801_info *fm801 = ch->parent;
446 	u_int32_t baseaddr = sndbuf_getbufaddr(ch->buffer);
447 	u_int32_t k1;
448 
449 	DPRINT("fm801ch_trigger go %d , ", go);
450 
451 	if (!PCMTRIG_COMMON(go))
452 		return 0;
453 
454 	if (ch->dir == PCMDIR_PLAY) {
455 		if (go == PCMTRIG_START) {
456 
457 			fm801->play_start = baseaddr;
458 			fm801->play_nextblk = fm801->play_start + fm801->play_blksize;
459 			fm801->play_flip = 0;
460 			fm801_wr(fm801, FM_PLAY_DMALEN, fm801->play_blksize - 1, 2);
461 			fm801_wr(fm801, FM_PLAY_DMABUF1,fm801->play_start,4);
462 			fm801_wr(fm801, FM_PLAY_DMABUF2,fm801->play_nextblk,4);
463 			fm801_wr(fm801, FM_PLAY_CTL,
464 					FM_PLAY_START | FM_PLAY_STOPNOW | fm801->play_fmt | fm801->play_shift,
465 					2 );
466 			} else {
467 			fm801->play_flip = 0;
468 			k1 = fm801_rd(fm801, FM_PLAY_CTL,2);
469 			fm801_wr(fm801, FM_PLAY_CTL,
470 				(k1 & ~(FM_PLAY_STOPNOW | FM_PLAY_START)) |
471 				FM_PLAY_BUF1_LAST | FM_PLAY_BUF2_LAST, 2 );
472 		}
473 	} else if(ch->dir == PCMDIR_REC) {
474 		if (go == PCMTRIG_START) {
475 			fm801->rec_start = baseaddr;
476 			fm801->rec_nextblk = fm801->rec_start + fm801->rec_blksize;
477 			fm801->rec_flip = 0;
478 			fm801_wr(fm801, FM_REC_DMALEN, fm801->rec_blksize - 1, 2);
479 			fm801_wr(fm801, FM_REC_DMABUF1,fm801->rec_start,4);
480 			fm801_wr(fm801, FM_REC_DMABUF2,fm801->rec_nextblk,4);
481 			fm801_wr(fm801, FM_REC_CTL,
482 					FM_REC_START | FM_REC_STOPNOW | fm801->rec_fmt | fm801->rec_shift,
483 					2 );
484 			} else {
485 			fm801->rec_flip = 0;
486 			k1 = fm801_rd(fm801, FM_REC_CTL,2);
487 			fm801_wr(fm801, FM_REC_CTL,
488 				(k1 & ~(FM_REC_STOPNOW | FM_REC_START)) |
489 				FM_REC_BUF1_LAST | FM_REC_BUF2_LAST, 2);
490 		}
491 	}
492 
493 	return 0;
494 }
495 
496 /* Almost ALSA copy */
497 static u_int32_t
498 fm801ch_getptr(kobj_t obj, void *data)
499 {
500 	struct fm801_chinfo *ch = data;
501 	struct fm801_info *fm801 = ch->parent;
502 	u_int32_t result = 0;
503 
504 	if (ch->dir == PCMDIR_PLAY) {
505 		result = fm801_rd(fm801,
506 			(fm801->play_flip&1) ?
507 			FM_PLAY_DMABUF2:FM_PLAY_DMABUF1, 4) - fm801->play_start;
508 	}
509 
510 	if (ch->dir == PCMDIR_REC) {
511 		result = fm801_rd(fm801,
512 			(fm801->rec_flip&1) ?
513 			FM_REC_DMABUF2:FM_REC_DMABUF1, 4) - fm801->rec_start;
514 	}
515 
516 	return result;
517 }
518 
519 static struct pcmchan_caps *
520 fm801ch_getcaps(kobj_t obj, void *data)
521 {
522 	return &fm801ch_caps;
523 }
524 
525 static kobj_method_t fm801ch_methods[] = {
526     	KOBJMETHOD(channel_init,		fm801ch_init),
527     	KOBJMETHOD(channel_setformat,		fm801ch_setformat),
528     	KOBJMETHOD(channel_setspeed,		fm801ch_setspeed),
529     	KOBJMETHOD(channel_setblocksize,	fm801ch_setblocksize),
530     	KOBJMETHOD(channel_trigger,		fm801ch_trigger),
531     	KOBJMETHOD(channel_getptr,		fm801ch_getptr),
532     	KOBJMETHOD(channel_getcaps,		fm801ch_getcaps),
533 	DEVMETHOD_END
534 };
535 CHANNEL_DECLARE(fm801ch);
536 
537 /* -------------------------------------------------------------------- */
538 
539 /*
540  *  Init routine is taken from an original NetBSD driver
541  */
542 static int
543 fm801_init(struct fm801_info *fm801)
544 {
545 	u_int32_t k1;
546 
547 	/* reset codec */
548 	fm801_wr(fm801, FM_CODEC_CTL, 0x0020,2);
549 	DELAY(100000);
550 	fm801_wr(fm801, FM_CODEC_CTL, 0x0000,2);
551 	DELAY(100000);
552 
553 	fm801_wr(fm801, FM_PCM_VOLUME, 0x0808,2);
554 	fm801_wr(fm801, FM_FM_VOLUME, 0x0808,2);
555 	fm801_wr(fm801, FM_I2S_VOLUME, 0x0808,2);
556 	fm801_wr(fm801, 0x40,0x107f,2);	/* enable legacy audio */
557 
558 	fm801_wr((void *)fm801, FM_RECORD_SOURCE, 0x0000,2);
559 
560 	/* Unmask playback, record and mpu interrupts, mask the rest */
561 	k1 = fm801_rd((void *)fm801, FM_INTMASK,2);
562 	fm801_wr(fm801, FM_INTMASK,
563 		(k1 & ~(FM_INTMASK_PLAY | FM_INTMASK_REC | FM_INTMASK_MPU)) |
564 		FM_INTMASK_VOL,2);
565 	fm801_wr(fm801, FM_INTSTATUS,
566 		FM_INTSTATUS_PLAY | FM_INTSTATUS_REC | FM_INTSTATUS_MPU |
567 		FM_INTSTATUS_VOL,2);
568 
569 	DPRINT("FM801 init Ok\n");
570 	return 0;
571 }
572 
573 static int
574 fm801_pci_attach(device_t dev)
575 {
576 	struct ac97_info 	*codec = NULL;
577 	struct fm801_info 	*fm801;
578 	int 			i;
579 	int 			mapped = 0;
580 	char 			status[SND_STATUSLEN];
581 
582 	fm801 = malloc(sizeof(*fm801), M_DEVBUF, M_WAITOK | M_ZERO);
583 	fm801->type = pci_get_devid(dev);
584 
585 	pci_enable_busmaster(dev);
586 
587 	for (i = 0; (mapped == 0) && (i < PCI_MAXMAPS_0); i++) {
588 		fm801->regid = PCIR_BAR(i);
589 		fm801->regtype = SYS_RES_MEMORY;
590 		fm801->reg = bus_alloc_resource_any(dev, fm801->regtype,
591 						    &fm801->regid, RF_ACTIVE);
592 		if(!fm801->reg)
593 		{
594 			fm801->regtype = SYS_RES_IOPORT;
595 			fm801->reg = bus_alloc_resource_any(dev,
596 							    fm801->regtype,
597 							    &fm801->regid,
598 							    RF_ACTIVE);
599 		}
600 
601 		if(fm801->reg) {
602 			fm801->st = rman_get_bustag(fm801->reg);
603 			fm801->sh = rman_get_bushandle(fm801->reg);
604 			mapped++;
605 		}
606 	}
607 
608 	if (mapped == 0) {
609 		device_printf(dev, "unable to map register space\n");
610 		goto oops;
611 	}
612 
613 	fm801->bufsz = pcm_getbuffersize(dev, 4096, FM801_DEFAULT_BUFSZ, 65536);
614 
615 	fm801_init(fm801);
616 
617 	codec = AC97_CREATE(dev, fm801, fm801_ac97);
618 	if (codec == NULL) goto oops;
619 
620 	if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto oops;
621 
622 	fm801->irqid = 0;
623 	fm801->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fm801->irqid,
624 					    RF_ACTIVE | RF_SHAREABLE);
625 	if (!fm801->irq ||
626 	    snd_setup_intr(dev, fm801->irq, 0, fm801_intr, fm801, &fm801->ih)) {
627 		device_printf(dev, "unable to map interrupt\n");
628 		goto oops;
629 	}
630 
631 	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
632 		/*boundary*/0,
633 		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
634 		/*highaddr*/BUS_SPACE_MAXADDR,
635 		/*filter*/NULL, /*filterarg*/NULL,
636 		/*maxsize*/fm801->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
637 		/*flags*/0, /*lockfunc*/busdma_lock_mutex,
638 		/*lockarg*/&Giant, &fm801->parent_dmat) != 0) {
639 		device_printf(dev, "unable to create dma tag\n");
640 		goto oops;
641 	}
642 
643 	snprintf(status, 64, "at %s 0x%jx irq %jd %s",
644 		(fm801->regtype == SYS_RES_IOPORT)? "io" : "memory",
645 		rman_get_start(fm801->reg), rman_get_start(fm801->irq),PCM_KLDSTRING(snd_fm801));
646 
647 #define FM801_MAXPLAYCH	1
648 	if (pcm_register(dev, fm801, FM801_MAXPLAYCH, 1)) goto oops;
649 	pcm_addchan(dev, PCMDIR_PLAY, &fm801ch_class, fm801);
650 	pcm_addchan(dev, PCMDIR_REC, &fm801ch_class, fm801);
651 	pcm_setstatus(dev, status);
652 
653 	fm801->radio = device_add_child(dev, "radio", -1);
654 	bus_generic_attach(dev);
655 
656 	return 0;
657 
658 oops:
659 	if (codec) ac97_destroy(codec);
660 	if (fm801->reg) bus_release_resource(dev, fm801->regtype, fm801->regid, fm801->reg);
661 	if (fm801->ih) bus_teardown_intr(dev, fm801->irq, fm801->ih);
662 	if (fm801->irq) bus_release_resource(dev, SYS_RES_IRQ, fm801->irqid, fm801->irq);
663 	if (fm801->parent_dmat) bus_dma_tag_destroy(fm801->parent_dmat);
664 	free(fm801, M_DEVBUF);
665 	return ENXIO;
666 }
667 
668 static int
669 fm801_pci_detach(device_t dev)
670 {
671 	int r;
672 	struct fm801_info *fm801;
673 
674 	DPRINT("Forte Media FM801 detach\n");
675 
676 	fm801 = pcm_getdevinfo(dev);
677 
678 	r = bus_generic_detach(dev);
679 	if (r)
680 		return r;
681 	if (fm801->radio != NULL) {
682 		r = device_delete_child(dev, fm801->radio);
683 		if (r)
684 			return r;
685 		fm801->radio = NULL;
686 	}
687 
688 	r = pcm_unregister(dev);
689 	if (r)
690 		return r;
691 
692 	bus_release_resource(dev, fm801->regtype, fm801->regid, fm801->reg);
693 	bus_teardown_intr(dev, fm801->irq, fm801->ih);
694 	bus_release_resource(dev, SYS_RES_IRQ, fm801->irqid, fm801->irq);
695 	bus_dma_tag_destroy(fm801->parent_dmat);
696 	free(fm801, M_DEVBUF);
697 	return 0;
698 }
699 
700 static int
701 fm801_pci_probe( device_t dev )
702 {
703 	int id;
704 
705 	if ((id = pci_get_devid(dev)) == PCI_DEVICE_FORTEMEDIA1 ) {
706 		device_set_desc(dev, "Forte Media FM801 Audio Controller");
707 		return BUS_PROBE_DEFAULT;
708 	}
709 /*
710 	if ((id = pci_get_devid(dev)) == PCI_DEVICE_FORTEMEDIA2 ) {
711 		device_set_desc(dev, "Forte Media FM801 Joystick (Not Supported)");
712 		return ENXIO;
713 	}
714 */
715 	return ENXIO;
716 }
717 
718 static struct resource *
719 fm801_alloc_resource(device_t bus, device_t child, int type, int *rid,
720 		     rman_res_t start, rman_res_t end, rman_res_t count,
721 		     u_int flags)
722 {
723 	struct fm801_info *fm801;
724 
725 	fm801 = pcm_getdevinfo(bus);
726 
727 	if (type == SYS_RES_IOPORT && *rid == PCIR_BAR(0))
728 		return (fm801->reg);
729 
730 	return (NULL);
731 }
732 
733 static int
734 fm801_release_resource(device_t bus, device_t child, int type, int rid,
735 		       struct resource *r)
736 {
737 	return (0);
738 }
739 
740 static device_method_t fm801_methods[] = {
741 	/* Device interface */
742 	DEVMETHOD(device_probe,		fm801_pci_probe),
743 	DEVMETHOD(device_attach,	fm801_pci_attach),
744 	DEVMETHOD(device_detach,	fm801_pci_detach),
745 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
746 	DEVMETHOD(device_suspend,	bus_generic_suspend),
747 	DEVMETHOD(device_resume,	bus_generic_resume),
748 
749 	/* Bus interface */
750 	DEVMETHOD(bus_alloc_resource,	fm801_alloc_resource),
751 	DEVMETHOD(bus_release_resource,	fm801_release_resource),
752 	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
753 	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
754 
755 	DEVMETHOD_END
756 };
757 
758 static driver_t fm801_driver = {
759 	"pcm",
760 	fm801_methods,
761 	PCM_SOFTC_SIZE,
762 };
763 
764 DRIVER_MODULE(snd_fm801, pci, fm801_driver, pcm_devclass, 0, 0);
765 MODULE_DEPEND(snd_fm801, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
766 MODULE_VERSION(snd_fm801, 1);
767