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6
7#include <asm/dma.h>
8#include <linux/init.h>
9#include <linux/pnp.h>
10#include <linux/err.h>
11#include <linux/isa.h>
12#include <linux/module.h>
13#include <sound/core.h>
14#include <sound/sb.h>
15#include <sound/sb16_csp.h>
16#include <sound/mpu401.h>
17#include <sound/opl3.h>
18#include <sound/emu8000.h>
19#include <sound/seq_device.h>
20#define SNDRV_LEGACY_FIND_FREE_IRQ
21#define SNDRV_LEGACY_FIND_FREE_DMA
22#include <sound/initval.h>
23
24#ifdef SNDRV_SBAWE
25#define PFX "sbawe: "
26#else
27#define PFX "sb16: "
28#endif
29
30MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
31MODULE_LICENSE("GPL");
32#ifndef SNDRV_SBAWE
33MODULE_DESCRIPTION("Sound Blaster 16");
34#else
35MODULE_DESCRIPTION("Sound Blaster AWE");
36#endif
37
38#if 0
39#define SNDRV_DEBUG_IRQ
40#endif
41
42#if defined(SNDRV_SBAWE) && IS_ENABLED(CONFIG_SND_SEQUENCER)
43#define SNDRV_SBAWE_EMU8000
44#endif
45
46static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
47static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
48static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
49#ifdef CONFIG_PNP
50static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
51#endif
52static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
53static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
54static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
55#ifdef SNDRV_SBAWE_EMU8000
56static long awe_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
57#endif
58static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
59static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
60static int dma16[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
61static int mic_agc[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
62#ifdef CONFIG_SND_SB16_CSP
63static int csp[SNDRV_CARDS];
64#endif
65#ifdef SNDRV_SBAWE_EMU8000
66static int seq_ports[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
67#endif
68
69module_param_array(index, int, NULL, 0444);
70MODULE_PARM_DESC(index, "Index value for SoundBlaster 16 soundcard.");
71module_param_array(id, charp, NULL, 0444);
72MODULE_PARM_DESC(id, "ID string for SoundBlaster 16 soundcard.");
73module_param_array(enable, bool, NULL, 0444);
74MODULE_PARM_DESC(enable, "Enable SoundBlaster 16 soundcard.");
75#ifdef CONFIG_PNP
76module_param_array(isapnp, bool, NULL, 0444);
77MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
78#endif
79module_param_hw_array(port, long, ioport, NULL, 0444);
80MODULE_PARM_DESC(port, "Port # for SB16 driver.");
81module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
82MODULE_PARM_DESC(mpu_port, "MPU-401 port # for SB16 driver.");
83module_param_hw_array(fm_port, long, ioport, NULL, 0444);
84MODULE_PARM_DESC(fm_port, "FM port # for SB16 PnP driver.");
85#ifdef SNDRV_SBAWE_EMU8000
86module_param_hw_array(awe_port, long, ioport, NULL, 0444);
87MODULE_PARM_DESC(awe_port, "AWE port # for SB16 PnP driver.");
88#endif
89module_param_hw_array(irq, int, irq, NULL, 0444);
90MODULE_PARM_DESC(irq, "IRQ # for SB16 driver.");
91module_param_hw_array(dma8, int, dma, NULL, 0444);
92MODULE_PARM_DESC(dma8, "8-bit DMA # for SB16 driver.");
93module_param_hw_array(dma16, int, dma, NULL, 0444);
94MODULE_PARM_DESC(dma16, "16-bit DMA # for SB16 driver.");
95module_param_array(mic_agc, int, NULL, 0444);
96MODULE_PARM_DESC(mic_agc, "Mic Auto-Gain-Control switch.");
97#ifdef CONFIG_SND_SB16_CSP
98module_param_array(csp, int, NULL, 0444);
99MODULE_PARM_DESC(csp, "ASP/CSP chip support.");
100#endif
101#ifdef SNDRV_SBAWE_EMU8000
102module_param_array(seq_ports, int, NULL, 0444);
103MODULE_PARM_DESC(seq_ports, "Number of sequencer ports for WaveTable synth.");
104#endif
105
106#ifdef CONFIG_PNP
107static int isa_registered;
108static int pnp_registered;
109#endif
110
111struct snd_card_sb16 {
112 struct resource *fm_res;
113 struct snd_sb *chip;
114#ifdef CONFIG_PNP
115 int dev_no;
116 struct pnp_dev *dev;
117#ifdef SNDRV_SBAWE_EMU8000
118 struct pnp_dev *devwt;
119#endif
120#endif
121};
122
123#ifdef CONFIG_PNP
124
125static const struct pnp_card_device_id snd_sb16_pnpids[] = {
126#ifndef SNDRV_SBAWE
127
128 { .id = "CTL0024", .devs = { { "CTL0031" } } },
129
130 { .id = "CTL0025", .devs = { { "CTL0031" } } },
131
132 { .id = "CTL0026", .devs = { { "CTL0031" } } },
133
134 { .id = "CTL0027", .devs = { { "CTL0031" } } },
135
136 { .id = "CTL0028", .devs = { { "CTL0031" } } },
137
138 { .id = "CTL0029", .devs = { { "CTL0031" } } },
139
140 { .id = "CTL002a", .devs = { { "CTL0031" } } },
141
142
143 { .id = "CTL002b", .devs = { { "CTL0031" } } },
144
145 { .id = "CTL002c", .devs = { { "CTL0031" } } },
146
147 { .id = "CTL0051", .devs = { { "CTL0001" } } },
148
149 { .id = "CTL0070", .devs = { { "CTL0001" } } },
150
151 { .id = "CTL0080", .devs = { { "CTL0041" } } },
152
153
154 { .id = "CTL0086", .devs = { { "CTL0041" } } },
155
156 { .id = "CTL00f0", .devs = { { "CTL0043" } } },
157
158 { .id = "tBA03b0", .devs = { {.id="PNPb003" } } },
159#else
160
161 { .id = "CTL0035", .devs = { { "CTL0031" }, { "CTL0021" } } },
162
163 { .id = "CTL0039", .devs = { { "CTL0031" }, { "CTL0021" } } },
164
165 { .id = "CTL0042", .devs = { { "CTL0031" }, { "CTL0021" } } },
166
167 { .id = "CTL0043", .devs = { { "CTL0031" }, { "CTL0021" } } },
168
169
170 { .id = "CTL0044", .devs = { { "CTL0031" }, { "CTL0021" } } },
171
172
173 { .id = "CTL0045", .devs = { { "CTL0031" }, { "CTL0021" } } },
174
175 { .id = "CTL0046", .devs = { { "CTL0031" }, { "CTL0021" } } },
176
177 { .id = "CTL0047", .devs = { { "CTL0031" }, { "CTL0021" } } },
178
179 { .id = "CTL0048", .devs = { { "CTL0031" }, { "CTL0021" } } },
180
181 { .id = "CTL0054", .devs = { { "CTL0031" }, { "CTL0021" } } },
182
183 { .id = "CTL009a", .devs = { { "CTL0041" }, { "CTL0021" } } },
184
185 { .id = "CTL009c", .devs = { { "CTL0041" }, { "CTL0021" } } },
186
187 { .id = "CTL009f", .devs = { { "CTL0041" }, { "CTL0021" } } },
188
189 { .id = "CTL009d", .devs = { { "CTL0042" }, { "CTL0022" } } },
190
191 { .id = "CTL009e", .devs = { { "CTL0044" }, { "CTL0023" } } },
192
193 { .id = "CTL00b2", .devs = { { "CTL0044" }, { "CTL0023" } } },
194
195 { .id = "CTL00c1", .devs = { { "CTL0042" }, { "CTL0022" } } },
196
197 { .id = "CTL00c3", .devs = { { "CTL0045" }, { "CTL0022" } } },
198
199 { .id = "CTL00c5", .devs = { { "CTL0045" }, { "CTL0022" } } },
200
201 { .id = "CTL00c7", .devs = { { "CTL0045" }, { "CTL0022" } } },
202
203 { .id = "CTL00e4", .devs = { { "CTL0045" }, { "CTL0022" } } },
204
205 { .id = "CTL00e9", .devs = { { "CTL0045" }, { "CTL0022" } } },
206
207 { .id = "CTL00ed", .devs = { { "CTL0041" }, { "CTL0070" } } },
208
209 { .id = "CTLXXXX" , .devs = { { "CTL0031" }, { "CTL0021" } } },
210 { .id = "CTLXXXX" , .devs = { { "CTL0041" }, { "CTL0021" } } },
211 { .id = "CTLXXXX" , .devs = { { "CTL0042" }, { "CTL0022" } } },
212 { .id = "CTLXXXX" , .devs = { { "CTL0044" }, { "CTL0023" } } },
213 { .id = "CTLXXXX" , .devs = { { "CTL0045" }, { "CTL0022" } } },
214#endif
215 { .id = "", }
216};
217
218MODULE_DEVICE_TABLE(pnp_card, snd_sb16_pnpids);
219
220#endif
221
222#ifdef SNDRV_SBAWE_EMU8000
223#define DRIVER_NAME "snd-card-sbawe"
224#else
225#define DRIVER_NAME "snd-card-sb16"
226#endif
227
228#ifdef CONFIG_PNP
229
230static int snd_card_sb16_pnp(int dev, struct snd_card_sb16 *acard,
231 struct pnp_card_link *card,
232 const struct pnp_card_device_id *id)
233{
234 struct pnp_dev *pdev;
235 int err;
236
237 acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
238 if (acard->dev == NULL)
239 return -ENODEV;
240
241#ifdef SNDRV_SBAWE_EMU8000
242 acard->devwt = pnp_request_card_device(card, id->devs[1].id, acard->dev);
243#endif
244
245 pdev = acard->dev;
246
247 err = pnp_activate_dev(pdev);
248 if (err < 0) {
249 snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
250 return err;
251 }
252 port[dev] = pnp_port_start(pdev, 0);
253 mpu_port[dev] = pnp_port_start(pdev, 1);
254 fm_port[dev] = pnp_port_start(pdev, 2);
255 dma8[dev] = pnp_dma(pdev, 0);
256 dma16[dev] = pnp_dma(pdev, 1);
257 irq[dev] = pnp_irq(pdev, 0);
258 snd_printdd("pnp SB16: port=0x%lx, mpu port=0x%lx, fm port=0x%lx\n",
259 port[dev], mpu_port[dev], fm_port[dev]);
260 snd_printdd("pnp SB16: dma1=%i, dma2=%i, irq=%i\n",
261 dma8[dev], dma16[dev], irq[dev]);
262#ifdef SNDRV_SBAWE_EMU8000
263
264 pdev = acard->devwt;
265 if (pdev != NULL) {
266 err = pnp_activate_dev(pdev);
267 if (err < 0) {
268 goto __wt_error;
269 }
270 awe_port[dev] = pnp_port_start(pdev, 0);
271 snd_printdd("pnp SB16: wavetable port=0x%llx\n",
272 (unsigned long long)pnp_port_start(pdev, 0));
273 } else {
274__wt_error:
275 if (pdev) {
276 pnp_release_card_device(pdev);
277 snd_printk(KERN_ERR PFX "WaveTable pnp configure failure\n");
278 }
279 acard->devwt = NULL;
280 awe_port[dev] = -1;
281 }
282#endif
283 return 0;
284}
285
286#endif
287
288#ifdef CONFIG_PNP
289#define is_isapnp_selected(dev) isapnp[dev]
290#else
291#define is_isapnp_selected(dev) 0
292#endif
293
294static int snd_sb16_card_new(struct device *devptr, int dev,
295 struct snd_card **cardp)
296{
297 struct snd_card *card;
298 int err;
299
300 err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
301 sizeof(struct snd_card_sb16), &card);
302 if (err < 0)
303 return err;
304 *cardp = card;
305 return 0;
306}
307
308static int snd_sb16_probe(struct snd_card *card, int dev)
309{
310 int xirq, xdma8, xdma16;
311 struct snd_sb *chip;
312 struct snd_card_sb16 *acard = card->private_data;
313 struct snd_opl3 *opl3;
314 struct snd_hwdep *synth = NULL;
315#ifdef CONFIG_SND_SB16_CSP
316 struct snd_hwdep *xcsp = NULL;
317#endif
318 unsigned long flags;
319 int err;
320
321 xirq = irq[dev];
322 xdma8 = dma8[dev];
323 xdma16 = dma16[dev];
324
325 err = snd_sbdsp_create(card, port[dev], xirq, snd_sb16dsp_interrupt,
326 xdma8, xdma16, SB_HW_AUTO, &chip);
327 if (err < 0)
328 return err;
329
330 acard->chip = chip;
331 if (chip->hardware != SB_HW_16) {
332 snd_printk(KERN_ERR PFX "SB 16 chip was not detected at 0x%lx\n", port[dev]);
333 return -ENODEV;
334 }
335 chip->mpu_port = mpu_port[dev];
336 if (!is_isapnp_selected(dev)) {
337 err = snd_sb16dsp_configure(chip);
338 if (err < 0)
339 return err;
340 }
341
342 err = snd_sb16dsp_pcm(chip, 0);
343 if (err < 0)
344 return err;
345
346 strcpy(card->driver,
347#ifdef SNDRV_SBAWE_EMU8000
348 awe_port[dev] > 0 ? "SB AWE" :
349#endif
350 "SB16");
351 strcpy(card->shortname, chip->name);
352 sprintf(card->longname, "%s at 0x%lx, irq %i, dma ",
353 chip->name,
354 chip->port,
355 xirq);
356 if (xdma8 >= 0)
357 sprintf(card->longname + strlen(card->longname), "%d", xdma8);
358 if (xdma16 >= 0)
359 sprintf(card->longname + strlen(card->longname), "%s%d",
360 xdma8 >= 0 ? "&" : "", xdma16);
361
362 if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
363 err = snd_mpu401_uart_new(card, 0, MPU401_HW_SB,
364 chip->mpu_port,
365 MPU401_INFO_IRQ_HOOK, -1,
366 &chip->rmidi);
367 if (err < 0)
368 return err;
369 chip->rmidi_callback = snd_mpu401_uart_interrupt;
370 }
371
372#ifdef SNDRV_SBAWE_EMU8000
373 if (awe_port[dev] == SNDRV_AUTO_PORT)
374 awe_port[dev] = 0;
375#endif
376
377 if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
378 if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
379 OPL3_HW_OPL3,
380 acard->fm_res != NULL || fm_port[dev] == port[dev],
381 &opl3) < 0) {
382 snd_printk(KERN_ERR PFX "no OPL device at 0x%lx-0x%lx\n",
383 fm_port[dev], fm_port[dev] + 2);
384 } else {
385#ifdef SNDRV_SBAWE_EMU8000
386 int seqdev = awe_port[dev] > 0 ? 2 : 1;
387#else
388 int seqdev = 1;
389#endif
390 err = snd_opl3_hwdep_new(opl3, 0, seqdev, &synth);
391 if (err < 0)
392 return err;
393 }
394 }
395
396 err = snd_sbmixer_new(chip);
397 if (err < 0)
398 return err;
399
400#ifdef CONFIG_SND_SB16_CSP
401
402 if ((chip->hardware == SB_HW_16) && csp[dev]) {
403 snd_sb_csp_new(chip, synth != NULL ? 1 : 0, &xcsp);
404 if (xcsp) {
405 chip->csp = xcsp->private_data;
406 chip->hardware = SB_HW_16CSP;
407 } else {
408 snd_printk(KERN_INFO PFX "warning - CSP chip not detected on soundcard #%i\n", dev + 1);
409 }
410 }
411#endif
412#ifdef SNDRV_SBAWE_EMU8000
413 if (awe_port[dev] > 0) {
414 err = snd_emu8000_new(card, 1, awe_port[dev],
415 seq_ports[dev], NULL);
416 if (err < 0) {
417 snd_printk(KERN_ERR PFX "fatal error - EMU-8000 synthesizer not detected at 0x%lx\n", awe_port[dev]);
418
419 return err;
420 }
421 }
422#endif
423
424
425 spin_lock_irqsave(&chip->mixer_lock, flags);
426 snd_sbmixer_write(chip, SB_DSP4_MIC_AGC,
427 (snd_sbmixer_read(chip, SB_DSP4_MIC_AGC) & 0x01) |
428 (mic_agc[dev] ? 0x00 : 0x01));
429 spin_unlock_irqrestore(&chip->mixer_lock, flags);
430
431 err = snd_card_register(card);
432 if (err < 0)
433 return err;
434
435 return 0;
436}
437
438#ifdef CONFIG_PM
439static int snd_sb16_suspend(struct snd_card *card, pm_message_t state)
440{
441 struct snd_card_sb16 *acard = card->private_data;
442 struct snd_sb *chip = acard->chip;
443
444 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
445 snd_sbmixer_suspend(chip);
446 return 0;
447}
448
449static int snd_sb16_resume(struct snd_card *card)
450{
451 struct snd_card_sb16 *acard = card->private_data;
452 struct snd_sb *chip = acard->chip;
453
454 snd_sbdsp_reset(chip);
455 snd_sbmixer_resume(chip);
456 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
457 return 0;
458}
459#endif
460
461static int snd_sb16_isa_probe1(int dev, struct device *pdev)
462{
463 struct snd_card_sb16 *acard;
464 struct snd_card *card;
465 int err;
466
467 err = snd_sb16_card_new(pdev, dev, &card);
468 if (err < 0)
469 return err;
470
471 acard = card->private_data;
472
473 fm_port[dev] = port[dev];
474
475 acard->fm_res = devm_request_region(card->dev, 0x388, 4,
476 "SoundBlaster FM");
477#ifdef SNDRV_SBAWE_EMU8000
478
479 awe_port[dev] = port[dev] + 0x400;
480#endif
481
482 err = snd_sb16_probe(card, dev);
483 if (err < 0)
484 return err;
485 dev_set_drvdata(pdev, card);
486 return 0;
487}
488
489
490static int snd_sb16_isa_match(struct device *pdev, unsigned int dev)
491{
492 return enable[dev] && !is_isapnp_selected(dev);
493}
494
495static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
496{
497 int err;
498 static const int possible_irqs[] = {5, 9, 10, 7, -1};
499 static const int possible_dmas8[] = {1, 3, 0, -1};
500 static const int possible_dmas16[] = {5, 6, 7, -1};
501
502 if (irq[dev] == SNDRV_AUTO_IRQ) {
503 irq[dev] = snd_legacy_find_free_irq(possible_irqs);
504 if (irq[dev] < 0) {
505 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
506 return -EBUSY;
507 }
508 }
509 if (dma8[dev] == SNDRV_AUTO_DMA) {
510 dma8[dev] = snd_legacy_find_free_dma(possible_dmas8);
511 if (dma8[dev] < 0) {
512 snd_printk(KERN_ERR PFX "unable to find a free 8-bit DMA\n");
513 return -EBUSY;
514 }
515 }
516 if (dma16[dev] == SNDRV_AUTO_DMA) {
517 dma16[dev] = snd_legacy_find_free_dma(possible_dmas16);
518 if (dma16[dev] < 0) {
519 snd_printk(KERN_ERR PFX "unable to find a free 16-bit DMA\n");
520 return -EBUSY;
521 }
522 }
523
524 if (port[dev] != SNDRV_AUTO_PORT)
525 return snd_sb16_isa_probe1(dev, pdev);
526 else {
527 static const int possible_ports[] = {0x220, 0x240, 0x260, 0x280};
528 int i;
529 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
530 port[dev] = possible_ports[i];
531 err = snd_sb16_isa_probe1(dev, pdev);
532 if (! err)
533 return 0;
534 }
535 return err;
536 }
537}
538
539#ifdef CONFIG_PM
540static int snd_sb16_isa_suspend(struct device *dev, unsigned int n,
541 pm_message_t state)
542{
543 return snd_sb16_suspend(dev_get_drvdata(dev), state);
544}
545
546static int snd_sb16_isa_resume(struct device *dev, unsigned int n)
547{
548 return snd_sb16_resume(dev_get_drvdata(dev));
549}
550#endif
551
552#ifdef SNDRV_SBAWE
553#define DEV_NAME "sbawe"
554#else
555#define DEV_NAME "sb16"
556#endif
557
558static struct isa_driver snd_sb16_isa_driver = {
559 .match = snd_sb16_isa_match,
560 .probe = snd_sb16_isa_probe,
561#ifdef CONFIG_PM
562 .suspend = snd_sb16_isa_suspend,
563 .resume = snd_sb16_isa_resume,
564#endif
565 .driver = {
566 .name = DEV_NAME
567 },
568};
569
570
571#ifdef CONFIG_PNP
572static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
573 const struct pnp_card_device_id *pid)
574{
575 static int dev;
576 struct snd_card *card;
577 int res;
578
579 for ( ; dev < SNDRV_CARDS; dev++) {
580 if (!enable[dev] || !isapnp[dev])
581 continue;
582 res = snd_sb16_card_new(&pcard->card->dev, dev, &card);
583 if (res < 0)
584 return res;
585 res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid);
586 if (res < 0)
587 return res;
588 res = snd_sb16_probe(card, dev);
589 if (res < 0)
590 return res;
591 pnp_set_card_drvdata(pcard, card);
592 dev++;
593 return 0;
594 }
595
596 return -ENODEV;
597}
598
599#ifdef CONFIG_PM
600static int snd_sb16_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
601{
602 return snd_sb16_suspend(pnp_get_card_drvdata(pcard), state);
603}
604static int snd_sb16_pnp_resume(struct pnp_card_link *pcard)
605{
606 return snd_sb16_resume(pnp_get_card_drvdata(pcard));
607}
608#endif
609
610static struct pnp_card_driver sb16_pnpc_driver = {
611 .flags = PNP_DRIVER_RES_DISABLE,
612#ifdef SNDRV_SBAWE
613 .name = "sbawe",
614#else
615 .name = "sb16",
616#endif
617 .id_table = snd_sb16_pnpids,
618 .probe = snd_sb16_pnp_detect,
619#ifdef CONFIG_PM
620 .suspend = snd_sb16_pnp_suspend,
621 .resume = snd_sb16_pnp_resume,
622#endif
623};
624
625#endif
626
627static int __init alsa_card_sb16_init(void)
628{
629 int err;
630
631 err = isa_register_driver(&snd_sb16_isa_driver, SNDRV_CARDS);
632#ifdef CONFIG_PNP
633 if (!err)
634 isa_registered = 1;
635
636 err = pnp_register_card_driver(&sb16_pnpc_driver);
637 if (!err)
638 pnp_registered = 1;
639
640 if (isa_registered)
641 err = 0;
642#endif
643 return err;
644}
645
646static void __exit alsa_card_sb16_exit(void)
647{
648#ifdef CONFIG_PNP
649 if (pnp_registered)
650 pnp_unregister_card_driver(&sb16_pnpc_driver);
651 if (isa_registered)
652#endif
653 isa_unregister_driver(&snd_sb16_isa_driver);
654}
655
656module_init(alsa_card_sb16_init)
657module_exit(alsa_card_sb16_exit)
658
