FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/isa/sbc.c
1 /*-
2 * Copyright (c) 1999 Seigo Tanimura
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 #include <dev/sound/chip.h>
28 #include <dev/sound/pcm/sound.h>
29 #include <dev/sound/isa/sb.h>
30
31 #include <isa/isavar.h>
32
33 SND_DECLARE_FILE("$FreeBSD: releng/7.4/sys/dev/sound/isa/sbc.c 167608 2007-03-15 16:41:27Z ariff $");
34
35 #define IO_MAX 3
36 #define IRQ_MAX 1
37 #define DRQ_MAX 2
38 #define INTR_MAX 2
39
40 struct sbc_softc;
41
42 struct sbc_ihl {
43 driver_intr_t *intr[INTR_MAX];
44 void *intr_arg[INTR_MAX];
45 struct sbc_softc *parent;
46 };
47
48 /* Here is the parameter structure per a device. */
49 struct sbc_softc {
50 device_t dev; /* device */
51 device_t child_pcm, child_midi1, child_midi2;
52
53 int io_rid[IO_MAX]; /* io port rids */
54 struct resource *io[IO_MAX]; /* io port resources */
55 int io_alloced[IO_MAX]; /* io port alloc flag */
56
57 int irq_rid[IRQ_MAX]; /* irq rids */
58 struct resource *irq[IRQ_MAX]; /* irq resources */
59 int irq_alloced[IRQ_MAX]; /* irq alloc flag */
60
61 int drq_rid[DRQ_MAX]; /* drq rids */
62 struct resource *drq[DRQ_MAX]; /* drq resources */
63 int drq_alloced[DRQ_MAX]; /* drq alloc flag */
64
65 struct sbc_ihl ihl[IRQ_MAX];
66
67 void *ih[IRQ_MAX];
68
69 struct mtx *lock;
70
71 u_int32_t bd_ver;
72 };
73
74 static int sbc_probe(device_t dev);
75 static int sbc_attach(device_t dev);
76 static void sbc_intr(void *p);
77
78 static struct resource *sbc_alloc_resource(device_t bus, device_t child, int type, int *rid,
79 u_long start, u_long end, u_long count, u_int flags);
80 static int sbc_release_resource(device_t bus, device_t child, int type, int rid,
81 struct resource *r);
82 static int sbc_setup_intr(device_t dev, device_t child, struct resource *irq,
83 int flags,
84 #if __FreeBSD_version >= 700031
85 driver_filter_t *filter,
86 #endif
87 driver_intr_t *intr,
88 void *arg, void **cookiep);
89 static int sbc_teardown_intr(device_t dev, device_t child, struct resource *irq,
90 void *cookie);
91
92 static int alloc_resource(struct sbc_softc *scp);
93 static int release_resource(struct sbc_softc *scp);
94
95 static devclass_t sbc_devclass;
96
97 static int io_range[3] = {0x10, 0x2, 0x4};
98
99 #ifdef PC98 /* I/O address table for PC98 */
100 static bus_addr_t pcm_iat[] = {
101 0x000, 0x100, 0x200, 0x300, 0x400, 0x500, 0x600, 0x700,
102 0x800, 0x900, 0xa00, 0xb00, 0xc00, 0xd00, 0xe00, 0xf00
103 };
104 static bus_addr_t midi_iat[] = {
105 0x000, 0x100
106 };
107 static bus_addr_t opl_iat[] = {
108 0x000, 0x100, 0x200, 0x300
109 };
110 static bus_addr_t *sb_iat[] = { pcm_iat, midi_iat, opl_iat };
111 #endif
112
113 static int sb_rd(struct resource *io, int reg);
114 static void sb_wr(struct resource *io, int reg, u_int8_t val);
115 static int sb_dspready(struct resource *io);
116 static int sb_cmd(struct resource *io, u_char val);
117 static u_int sb_get_byte(struct resource *io);
118 static void sb_setmixer(struct resource *io, u_int port, u_int value);
119
120 static void
121 sbc_lockinit(struct sbc_softc *scp)
122 {
123 scp->lock = snd_mtxcreate(device_get_nameunit(scp->dev),
124 "snd_sbc softc");
125 }
126
127 static void
128 sbc_lockdestroy(struct sbc_softc *scp)
129 {
130 snd_mtxfree(scp->lock);
131 }
132
133 void
134 sbc_lock(struct sbc_softc *scp)
135 {
136 snd_mtxlock(scp->lock);
137 }
138
139 void
140 sbc_lockassert(struct sbc_softc *scp)
141 {
142 snd_mtxassert(scp->lock);
143 }
144
145 void
146 sbc_unlock(struct sbc_softc *scp)
147 {
148 snd_mtxunlock(scp->lock);
149 }
150
151 static int
152 sb_rd(struct resource *io, int reg)
153 {
154 return bus_space_read_1(rman_get_bustag(io),
155 rman_get_bushandle(io),
156 reg);
157 }
158
159 static void
160 sb_wr(struct resource *io, int reg, u_int8_t val)
161 {
162 bus_space_write_1(rman_get_bustag(io),
163 rman_get_bushandle(io),
164 reg, val);
165 }
166
167 static int
168 sb_dspready(struct resource *io)
169 {
170 return ((sb_rd(io, SBDSP_STATUS) & 0x80) == 0);
171 }
172
173 static int
174 sb_dspwr(struct resource *io, u_char val)
175 {
176 int i;
177
178 for (i = 0; i < 1000; i++) {
179 if (sb_dspready(io)) {
180 sb_wr(io, SBDSP_CMD, val);
181 return 1;
182 }
183 if (i > 10) DELAY((i > 100)? 1000 : 10);
184 }
185 printf("sb_dspwr(0x%02x) timed out.\n", val);
186 return 0;
187 }
188
189 static int
190 sb_cmd(struct resource *io, u_char val)
191 {
192 return sb_dspwr(io, val);
193 }
194
195 static void
196 sb_setmixer(struct resource *io, u_int port, u_int value)
197 {
198 u_long flags;
199
200 flags = spltty();
201 sb_wr(io, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
202 DELAY(10);
203 sb_wr(io, SB_MIX_DATA, (u_char) (value & 0xff));
204 DELAY(10);
205 splx(flags);
206 }
207
208 static u_int
209 sb_get_byte(struct resource *io)
210 {
211 int i;
212
213 for (i = 1000; i > 0; i--) {
214 if (sb_rd(io, DSP_DATA_AVAIL) & 0x80)
215 return sb_rd(io, DSP_READ);
216 else
217 DELAY(20);
218 }
219 return 0xffff;
220 }
221
222 static int
223 sb_reset_dsp(struct resource *io)
224 {
225 sb_wr(io, SBDSP_RST, 3);
226 DELAY(100);
227 sb_wr(io, SBDSP_RST, 0);
228 return (sb_get_byte(io) == 0xAA)? 0 : ENXIO;
229 }
230
231 static int
232 sb_identify_board(struct resource *io)
233 {
234 int ver, essver, rev;
235
236 sb_cmd(io, DSP_CMD_GETVER); /* Get version */
237 ver = (sb_get_byte(io) << 8) | sb_get_byte(io);
238 if (ver < 0x100 || ver > 0x4ff) return 0;
239 if (ver == 0x0301) {
240 /* Try to detect ESS chips. */
241 sb_cmd(io, DSP_CMD_GETID); /* Return ident. bytes. */
242 essver = (sb_get_byte(io) << 8) | sb_get_byte(io);
243 rev = essver & 0x000f;
244 essver &= 0xfff0;
245 if (essver == 0x4880) ver |= 0x1000;
246 else if (essver == 0x6880) ver = 0x0500 | rev;
247 }
248 return ver;
249 }
250
251 static struct isa_pnp_id sbc_ids[] = {
252 {0x01008c0e, "Creative ViBRA16C"}, /* CTL0001 */
253 {0x31008c0e, "Creative SB16/SB32"}, /* CTL0031 */
254 {0x41008c0e, "Creative SB16/SB32"}, /* CTL0041 */
255 {0x42008c0e, "Creative SB AWE64"}, /* CTL0042 */
256 {0x43008c0e, "Creative ViBRA16X"}, /* CTL0043 */
257 {0x44008c0e, "Creative SB AWE64 Gold"}, /* CTL0044 */
258 {0x45008c0e, "Creative SB AWE64"}, /* CTL0045 */
259 {0x46008c0e, "Creative SB AWE64"}, /* CTL0046 */
260
261 {0x01000000, "Avance Logic ALS100+"}, /* @@@0001 - ViBRA16X clone */
262 {0x01100000, "Avance Asound 110"}, /* @@@1001 */
263 {0x01200000, "Avance Logic ALS120"}, /* @@@2001 - ViBRA16X clone */
264
265 {0x81167316, "ESS ES1681"}, /* ESS1681 */
266 {0x02017316, "ESS ES1688"}, /* ESS1688 */
267 {0x68097316, "ESS ES1688"}, /* ESS1688 */
268 {0x68187316, "ESS ES1868"}, /* ESS1868 */
269 {0x03007316, "ESS ES1869"}, /* ESS1869 */
270 {0x69187316, "ESS ES1869"}, /* ESS1869 */
271 {0xabb0110e, "ESS ES1869 (Compaq OEM)"}, /* CPQb0ab */
272 {0xacb0110e, "ESS ES1869 (Compaq OEM)"}, /* CPQb0ac */
273 {0x78187316, "ESS ES1878"}, /* ESS1878 */
274 {0x79187316, "ESS ES1879"}, /* ESS1879 */
275 {0x88187316, "ESS ES1888"}, /* ESS1888 */
276 {0x07017316, "ESS ES1888 (DEC OEM)"}, /* ESS0107 */
277 {0x06017316, "ESS ES1888 (Dell OEM)"}, /* ESS0106 */
278 {0}
279 };
280
281 static int
282 sbc_probe(device_t dev)
283 {
284 char *s = NULL;
285 u_int32_t lid, vid;
286
287 lid = isa_get_logicalid(dev);
288 vid = isa_get_vendorid(dev);
289 if (lid) {
290 if (lid == 0x01000000 && vid != 0x01009305) /* ALS0001 */
291 return ENXIO;
292 /* Check pnp ids */
293 return ISA_PNP_PROBE(device_get_parent(dev), dev, sbc_ids);
294 } else {
295 int rid = 0, ver;
296 struct resource *io;
297
298 #ifdef PC98
299 io = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
300 pcm_iat, 16, RF_ACTIVE);
301 #else
302 io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
303 0, ~0, 16, RF_ACTIVE);
304 #endif
305 if (!io) goto bad;
306 #ifdef PC98
307 isa_load_resourcev(io, pcm_iat, 16);
308 #endif
309 if (sb_reset_dsp(io)) goto bad2;
310 ver = sb_identify_board(io);
311 if (ver == 0) goto bad2;
312 switch ((ver & 0x00000f00) >> 8) {
313 case 1:
314 device_set_desc(dev, "SoundBlaster 1.0 (not supported)");
315 s = NULL;
316 break;
317
318 case 2:
319 s = "SoundBlaster 2.0";
320 break;
321
322 case 3:
323 s = (ver & 0x0000f000)? "ESS 488" : "SoundBlaster Pro";
324 break;
325
326 case 4:
327 s = "SoundBlaster 16";
328 break;
329
330 case 5:
331 s = (ver & 0x00000008)? "ESS 688" : "ESS 1688";
332 break;
333 }
334 if (s) device_set_desc(dev, s);
335 bad2: bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
336 bad: return s? 0 : ENXIO;
337 }
338 }
339
340 static int
341 sbc_attach(device_t dev)
342 {
343 char *err = NULL;
344 struct sbc_softc *scp;
345 struct sndcard_func *func;
346 u_int32_t logical_id = isa_get_logicalid(dev);
347 int flags = device_get_flags(dev);
348 int f, dh, dl, x, irq, i;
349
350 if (!logical_id && (flags & DV_F_DUAL_DMA)) {
351 bus_set_resource(dev, SYS_RES_DRQ, 1,
352 flags & DV_F_DRQ_MASK, 1);
353 }
354
355 scp = device_get_softc(dev);
356 bzero(scp, sizeof(*scp));
357 scp->dev = dev;
358 sbc_lockinit(scp);
359 err = "alloc_resource";
360 if (alloc_resource(scp)) goto bad;
361
362 err = "sb_reset_dsp";
363 if (sb_reset_dsp(scp->io[0])) goto bad;
364 err = "sb_identify_board";
365 scp->bd_ver = sb_identify_board(scp->io[0]) & 0x00000fff;
366 if (scp->bd_ver == 0) goto bad;
367 f = 0;
368 if (logical_id == 0x01200000 && scp->bd_ver < 0x0400) scp->bd_ver = 0x0499;
369 switch ((scp->bd_ver & 0x0f00) >> 8) {
370 case 1: /* old sound blaster has nothing... */
371 break;
372
373 case 2:
374 f |= BD_F_DUP_MIDI;
375 if (scp->bd_ver > 0x200) f |= BD_F_MIX_CT1335;
376 break;
377
378 case 5:
379 f |= BD_F_ESS;
380 scp->bd_ver = 0x0301;
381 case 3:
382 f |= BD_F_DUP_MIDI | BD_F_MIX_CT1345;
383 break;
384
385 case 4:
386 f |= BD_F_SB16 | BD_F_MIX_CT1745;
387 if (scp->drq[0]) dl = rman_get_start(scp->drq[0]); else dl = -1;
388 if (scp->drq[1]) dh = rman_get_start(scp->drq[1]); else dh = dl;
389 if (!logical_id && (dh < dl)) {
390 struct resource *r;
391 r = scp->drq[0];
392 scp->drq[0] = scp->drq[1];
393 scp->drq[1] = r;
394 dl = rman_get_start(scp->drq[0]);
395 dh = rman_get_start(scp->drq[1]);
396 }
397 /* soft irq/dma configuration */
398 x = -1;
399 irq = rman_get_start(scp->irq[0]);
400 #ifdef PC98
401 /* SB16 in PC98 use different IRQ table */
402 if (irq == 3) x = 1;
403 else if (irq == 5) x = 8;
404 else if (irq == 10) x = 2;
405 else if (irq == 12) x = 4;
406 if (x == -1) {
407 err = "bad irq (3/5/10/12 valid)";
408 goto bad;
409 }
410 else sb_setmixer(scp->io[0], IRQ_NR, x);
411 /* SB16 in PC98 use different dma setting */
412 sb_setmixer(scp->io[0], DMA_NR, dh == 0 ? 1 : 2);
413 #else
414 if (irq == 5) x = 2;
415 else if (irq == 7) x = 4;
416 else if (irq == 9) x = 1;
417 else if (irq == 10) x = 8;
418 if (x == -1) {
419 err = "bad irq (5/7/9/10 valid)";
420 goto bad;
421 }
422 else sb_setmixer(scp->io[0], IRQ_NR, x);
423 sb_setmixer(scp->io[0], DMA_NR, (1 << dh) | (1 << dl));
424 #endif
425 if (bootverbose) {
426 device_printf(dev, "setting card to irq %d, drq %d", irq, dl);
427 if (dl != dh) printf(", %d", dh);
428 printf("\n");
429 }
430 break;
431 }
432
433 switch (logical_id) {
434 case 0x43008c0e: /* CTL0043 */
435 case 0x01200000:
436 case 0x01000000:
437 f |= BD_F_SB16X;
438 break;
439 }
440 scp->bd_ver |= f << 16;
441
442 err = "setup_intr";
443 for (i = 0; i < IRQ_MAX; i++) {
444 scp->ihl[i].parent = scp;
445 if (snd_setup_intr(dev, scp->irq[i], 0, sbc_intr, &scp->ihl[i], &scp->ih[i]))
446 goto bad;
447 }
448
449 /* PCM Audio */
450 func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
451 if (func == NULL) goto bad;
452 func->func = SCF_PCM;
453 scp->child_pcm = device_add_child(dev, "pcm", -1);
454 device_set_ivars(scp->child_pcm, func);
455
456 /* Midi Interface */
457 func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
458 if (func == NULL) goto bad;
459 func->func = SCF_MIDI;
460 scp->child_midi1 = device_add_child(dev, "midi", -1);
461 device_set_ivars(scp->child_midi1, func);
462
463 /* OPL FM Synthesizer */
464 func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO);
465 if (func == NULL) goto bad;
466 func->func = SCF_SYNTH;
467 scp->child_midi2 = device_add_child(dev, "midi", -1);
468 device_set_ivars(scp->child_midi2, func);
469
470 /* probe/attach kids */
471 bus_generic_attach(dev);
472
473 return (0);
474
475 bad: if (err) device_printf(dev, "%s\n", err);
476 release_resource(scp);
477 return (ENXIO);
478 }
479
480 static int
481 sbc_detach(device_t dev)
482 {
483 struct sbc_softc *scp = device_get_softc(dev);
484
485 sbc_lock(scp);
486 device_delete_child(dev, scp->child_midi2);
487 device_delete_child(dev, scp->child_midi1);
488 device_delete_child(dev, scp->child_pcm);
489 release_resource(scp);
490 sbc_lockdestroy(scp);
491 return bus_generic_detach(dev);
492 }
493
494 static void
495 sbc_intr(void *p)
496 {
497 struct sbc_ihl *ihl = p;
498 int i;
499
500 /* sbc_lock(ihl->parent); */
501 i = 0;
502 while (i < INTR_MAX) {
503 if (ihl->intr[i] != NULL) ihl->intr[i](ihl->intr_arg[i]);
504 i++;
505 }
506 /* sbc_unlock(ihl->parent); */
507 }
508
509 static int
510 sbc_setup_intr(device_t dev, device_t child, struct resource *irq, int flags,
511 #if __FreeBSD_version >= 700031
512 driver_filter_t *filter,
513 #endif
514 driver_intr_t *intr,
515 void *arg, void **cookiep)
516 {
517 struct sbc_softc *scp = device_get_softc(dev);
518 struct sbc_ihl *ihl = NULL;
519 int i, ret;
520
521 #if __FreeBSD_version >= 700031
522 if (filter != NULL) {
523 printf("sbc.c: we cannot use a filter here\n");
524 return (EINVAL);
525 }
526 #endif
527 sbc_lock(scp);
528 i = 0;
529 while (i < IRQ_MAX) {
530 if (irq == scp->irq[i]) ihl = &scp->ihl[i];
531 i++;
532 }
533 ret = 0;
534 if (ihl == NULL) ret = EINVAL;
535 i = 0;
536 while ((ret == 0) && (i < INTR_MAX)) {
537 if (ihl->intr[i] == NULL) {
538 ihl->intr[i] = intr;
539 ihl->intr_arg[i] = arg;
540 *cookiep = &ihl->intr[i];
541 ret = -1;
542 } else i++;
543 }
544 sbc_unlock(scp);
545 return (ret > 0)? EINVAL : 0;
546 }
547
548 static int
549 sbc_teardown_intr(device_t dev, device_t child, struct resource *irq,
550 void *cookie)
551 {
552 struct sbc_softc *scp = device_get_softc(dev);
553 struct sbc_ihl *ihl = NULL;
554 int i, ret;
555
556 sbc_lock(scp);
557 i = 0;
558 while (i < IRQ_MAX) {
559 if (irq == scp->irq[i]) ihl = &scp->ihl[i];
560 i++;
561 }
562 ret = 0;
563 if (ihl == NULL) ret = EINVAL;
564 i = 0;
565 while ((ret == 0) && (i < INTR_MAX)) {
566 if (cookie == &ihl->intr[i]) {
567 ihl->intr[i] = NULL;
568 ihl->intr_arg[i] = NULL;
569 return 0;
570 } else i++;
571 }
572 sbc_unlock(scp);
573 return (ret > 0)? EINVAL : 0;
574 }
575
576 static struct resource *
577 sbc_alloc_resource(device_t bus, device_t child, int type, int *rid,
578 u_long start, u_long end, u_long count, u_int flags)
579 {
580 struct sbc_softc *scp;
581 int *alloced, rid_max, alloced_max;
582 struct resource **res;
583 #ifdef PC98
584 int i;
585 #endif
586
587 scp = device_get_softc(bus);
588 switch (type) {
589 case SYS_RES_IOPORT:
590 alloced = scp->io_alloced;
591 res = scp->io;
592 #ifdef PC98
593 rid_max = 0;
594 for (i = 0; i < IO_MAX; i++)
595 rid_max += io_range[i];
596 #else
597 rid_max = IO_MAX - 1;
598 #endif
599 alloced_max = 1;
600 break;
601 case SYS_RES_DRQ:
602 alloced = scp->drq_alloced;
603 res = scp->drq;
604 rid_max = DRQ_MAX - 1;
605 alloced_max = 1;
606 break;
607 case SYS_RES_IRQ:
608 alloced = scp->irq_alloced;
609 res = scp->irq;
610 rid_max = IRQ_MAX - 1;
611 alloced_max = INTR_MAX; /* pcm and mpu may share the irq. */
612 break;
613 default:
614 return (NULL);
615 }
616
617 if (*rid > rid_max || alloced[*rid] == alloced_max)
618 return (NULL);
619
620 alloced[*rid]++;
621 return (res[*rid]);
622 }
623
624 static int
625 sbc_release_resource(device_t bus, device_t child, int type, int rid,
626 struct resource *r)
627 {
628 struct sbc_softc *scp;
629 int *alloced, rid_max;
630
631 scp = device_get_softc(bus);
632 switch (type) {
633 case SYS_RES_IOPORT:
634 alloced = scp->io_alloced;
635 rid_max = IO_MAX - 1;
636 break;
637 case SYS_RES_DRQ:
638 alloced = scp->drq_alloced;
639 rid_max = DRQ_MAX - 1;
640 break;
641 case SYS_RES_IRQ:
642 alloced = scp->irq_alloced;
643 rid_max = IRQ_MAX - 1;
644 break;
645 default:
646 return (1);
647 }
648
649 if (rid > rid_max || alloced[rid] == 0)
650 return (1);
651
652 alloced[rid]--;
653 return (0);
654 }
655
656 static int
657 sbc_read_ivar(device_t bus, device_t dev, int index, uintptr_t * result)
658 {
659 struct sbc_softc *scp = device_get_softc(bus);
660 struct sndcard_func *func = device_get_ivars(dev);
661
662 switch (index) {
663 case 0:
664 *result = func->func;
665 break;
666
667 case 1:
668 *result = scp->bd_ver;
669 break;
670
671 default:
672 return ENOENT;
673 }
674
675 return 0;
676 }
677
678 static int
679 sbc_write_ivar(device_t bus, device_t dev,
680 int index, uintptr_t value)
681 {
682 switch (index) {
683 case 0:
684 case 1:
685 return EINVAL;
686
687 default:
688 return (ENOENT);
689 }
690 }
691
692 static int
693 alloc_resource(struct sbc_softc *scp)
694 {
695 int i;
696
697 for (i = 0 ; i < IO_MAX ; i++) {
698 if (scp->io[i] == NULL) {
699 #ifdef PC98
700 scp->io_rid[i] = i > 0 ?
701 scp->io_rid[i - 1] + io_range[i - 1] : 0;
702 scp->io[i] = isa_alloc_resourcev(scp->dev,
703 SYS_RES_IOPORT,
704 &scp->io_rid[i],
705 sb_iat[i],
706 io_range[i],
707 RF_ACTIVE);
708 if (scp->io[i] != NULL)
709 isa_load_resourcev(scp->io[i], sb_iat[i],
710 io_range[i]);
711 #else
712 scp->io_rid[i] = i;
713 scp->io[i] = bus_alloc_resource(scp->dev, SYS_RES_IOPORT, &scp->io_rid[i],
714 0, ~0, io_range[i], RF_ACTIVE);
715 #endif
716 if (i == 0 && scp->io[i] == NULL)
717 return (1);
718 scp->io_alloced[i] = 0;
719 }
720 }
721 for (i = 0 ; i < DRQ_MAX ; i++) {
722 if (scp->drq[i] == NULL) {
723 scp->drq_rid[i] = i;
724 scp->drq[i] = bus_alloc_resource_any(scp->dev,
725 SYS_RES_DRQ,
726 &scp->drq_rid[i],
727 RF_ACTIVE);
728 if (i == 0 && scp->drq[i] == NULL)
729 return (1);
730 scp->drq_alloced[i] = 0;
731 }
732 }
733 for (i = 0 ; i < IRQ_MAX ; i++) {
734 if (scp->irq[i] == NULL) {
735 scp->irq_rid[i] = i;
736 scp->irq[i] = bus_alloc_resource_any(scp->dev,
737 SYS_RES_IRQ,
738 &scp->irq_rid[i],
739 RF_ACTIVE);
740 if (i == 0 && scp->irq[i] == NULL)
741 return (1);
742 scp->irq_alloced[i] = 0;
743 }
744 }
745 return (0);
746 }
747
748 static int
749 release_resource(struct sbc_softc *scp)
750 {
751 int i;
752
753 for (i = 0 ; i < IO_MAX ; i++) {
754 if (scp->io[i] != NULL) {
755 bus_release_resource(scp->dev, SYS_RES_IOPORT, scp->io_rid[i], scp->io[i]);
756 scp->io[i] = NULL;
757 }
758 }
759 for (i = 0 ; i < DRQ_MAX ; i++) {
760 if (scp->drq[i] != NULL) {
761 bus_release_resource(scp->dev, SYS_RES_DRQ, scp->drq_rid[i], scp->drq[i]);
762 scp->drq[i] = NULL;
763 }
764 }
765 for (i = 0 ; i < IRQ_MAX ; i++) {
766 if (scp->irq[i] != NULL) {
767 if (scp->ih[i] != NULL)
768 bus_teardown_intr(scp->dev, scp->irq[i], scp->ih[i]);
769 scp->ih[i] = NULL;
770 bus_release_resource(scp->dev, SYS_RES_IRQ, scp->irq_rid[i], scp->irq[i]);
771 scp->irq[i] = NULL;
772 }
773 }
774 return (0);
775 }
776
777 static device_method_t sbc_methods[] = {
778 /* Device interface */
779 DEVMETHOD(device_probe, sbc_probe),
780 DEVMETHOD(device_attach, sbc_attach),
781 DEVMETHOD(device_detach, sbc_detach),
782 DEVMETHOD(device_shutdown, bus_generic_shutdown),
783 DEVMETHOD(device_suspend, bus_generic_suspend),
784 DEVMETHOD(device_resume, bus_generic_resume),
785
786 /* Bus interface */
787 DEVMETHOD(bus_read_ivar, sbc_read_ivar),
788 DEVMETHOD(bus_write_ivar, sbc_write_ivar),
789 DEVMETHOD(bus_print_child, bus_generic_print_child),
790 DEVMETHOD(bus_alloc_resource, sbc_alloc_resource),
791 DEVMETHOD(bus_release_resource, sbc_release_resource),
792 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
793 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
794 DEVMETHOD(bus_setup_intr, sbc_setup_intr),
795 DEVMETHOD(bus_teardown_intr, sbc_teardown_intr),
796
797 { 0, 0 }
798 };
799
800 static driver_t sbc_driver = {
801 "sbc",
802 sbc_methods,
803 sizeof(struct sbc_softc),
804 };
805
806 /* sbc can be attached to an isa bus. */
807 DRIVER_MODULE(snd_sbc, isa, sbc_driver, sbc_devclass, 0, 0);
808 DRIVER_MODULE(snd_sbc, acpi, sbc_driver, sbc_devclass, 0, 0);
809 MODULE_DEPEND(snd_sbc, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
810 MODULE_VERSION(snd_sbc, 1);
Cache object: 865b07c42e3baea38d238aabd5499462
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