1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * ALSA card-level driver for Turtle Beach Wavefront cards
4 * (Maui,Tropez,Tropez+)
5 *
6 * Copyright (c) 1997-1999 by Paul Barton-Davis <pbd@op.net>
7 */
8
9 #include <linux/init.h>
10 #include <linux/interrupt.h>
11 #include <linux/err.h>
12 #include <linux/isa.h>
13 #include <linux/pnp.h>
14 #include <linux/module.h>
15 #include <sound/core.h>
16 #include <sound/initval.h>
17 #include <sound/opl3.h>
18 #include <sound/wss.h>
19 #include <sound/snd_wavefront.h>
20
21 MODULE_AUTHOR("Paul Barton-Davis <pbd@op.net>");
22 MODULE_DESCRIPTION("Turtle Beach Wavefront");
23 MODULE_LICENSE("GPL");
24
25 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
26 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
27 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
28 #ifdef CONFIG_PNP
29 static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
30 #endif
31 static long cs4232_pcm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
32 static int cs4232_pcm_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
33 static long cs4232_mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
34 static int cs4232_mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */
35 static long ics2115_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
36 static int ics2115_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,9,11,12,15 */
37 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
38 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
39 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
40 static bool use_cs4232_midi[SNDRV_CARDS];
41
42 module_param_array(index, int, NULL, 0444);
43 MODULE_PARM_DESC(index, "Index value for WaveFront soundcard.");
44 module_param_array(id, charp, NULL, 0444);
45 MODULE_PARM_DESC(id, "ID string for WaveFront soundcard.");
46 module_param_array(enable, bool, NULL, 0444);
47 MODULE_PARM_DESC(enable, "Enable WaveFront soundcard.");
48 #ifdef CONFIG_PNP
49 module_param_array(isapnp, bool, NULL, 0444);
50 MODULE_PARM_DESC(isapnp, "ISA PnP detection for WaveFront soundcards.");
51 #endif
52 module_param_hw_array(cs4232_pcm_port, long, ioport, NULL, 0444);
53 MODULE_PARM_DESC(cs4232_pcm_port, "Port # for CS4232 PCM interface.");
54 module_param_hw_array(cs4232_pcm_irq, int, irq, NULL, 0444);
55 MODULE_PARM_DESC(cs4232_pcm_irq, "IRQ # for CS4232 PCM interface.");
56 module_param_hw_array(dma1, int, dma, NULL, 0444);
57 MODULE_PARM_DESC(dma1, "DMA1 # for CS4232 PCM interface.");
58 module_param_hw_array(dma2, int, dma, NULL, 0444);
59 MODULE_PARM_DESC(dma2, "DMA2 # for CS4232 PCM interface.");
60 module_param_hw_array(cs4232_mpu_port, long, ioport, NULL, 0444);
61 MODULE_PARM_DESC(cs4232_mpu_port, "port # for CS4232 MPU-401 interface.");
62 module_param_hw_array(cs4232_mpu_irq, int, irq, NULL, 0444);
63 MODULE_PARM_DESC(cs4232_mpu_irq, "IRQ # for CS4232 MPU-401 interface.");
64 module_param_hw_array(ics2115_irq, int, irq, NULL, 0444);
65 MODULE_PARM_DESC(ics2115_irq, "IRQ # for ICS2115.");
66 module_param_hw_array(ics2115_port, long, ioport, NULL, 0444);
67 MODULE_PARM_DESC(ics2115_port, "Port # for ICS2115.");
68 module_param_hw_array(fm_port, long, ioport, NULL, 0444);
69 MODULE_PARM_DESC(fm_port, "FM port #.");
70 module_param_array(use_cs4232_midi, bool, NULL, 0444);
71 MODULE_PARM_DESC(use_cs4232_midi, "Use CS4232 MPU-401 interface (inaccessibly located inside your computer)");
72
73 #ifdef CONFIG_PNP
74 static int isa_registered;
75 static int pnp_registered;
76
77 static const struct pnp_card_device_id snd_wavefront_pnpids[] = {
78 /* Tropez */
79 { .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } },
80 /* Tropez+ */
81 { .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } },
82 { .id = "" }
83 };
84
85 MODULE_DEVICE_TABLE(pnp_card, snd_wavefront_pnpids);
86
87 static int
88 snd_wavefront_pnp (int dev, snd_wavefront_card_t *acard, struct pnp_card_link *card,
89 const struct pnp_card_device_id *id)
90 {
91 struct pnp_dev *pdev;
92 int err;
93
94 /* Check for each logical device. */
95
96 /* CS4232 chip (aka "windows sound system") is logical device 0 */
97
98 acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL);
99 if (acard->wss == NULL)
100 return -EBUSY;
101
102 /* there is a game port at logical device 1, but we ignore it completely */
103
104 /* the control interface is logical device 2, but we ignore it
105 completely. in fact, nobody even seems to know what it
106 does.
107 */
108
109 /* Only configure the CS4232 MIDI interface if its been
110 specifically requested. It is logical device 3.
111 */
112
113 if (use_cs4232_midi[dev]) {
114 acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL);
115 if (acard->mpu == NULL)
116 return -EBUSY;
117 }
118
119 /* The ICS2115 synth is logical device 4 */
120
121 acard->synth = pnp_request_card_device(card, id->devs[3].id, NULL);
122 if (acard->synth == NULL)
123 return -EBUSY;
124
125 /* PCM/FM initialization */
126
127 pdev = acard->wss;
128
129 /* An interesting note from the Tropez+ FAQ:
130
131 Q. [Ports] Why is the base address of the WSS I/O ports off by 4?
132
133 A. WSS I/O requires a block of 8 I/O addresses ("ports"). Of these, the first
134 4 are used to identify and configure the board. With the advent of PnP,
135 these first 4 addresses have become obsolete, and software applications
136 only use the last 4 addresses to control the codec chip. Therefore, the
137 base address setting "skips past" the 4 unused addresses.
138
139 */
140
141 err = pnp_activate_dev(pdev);
142 if (err < 0) {
143 snd_printk(KERN_ERR "PnP WSS pnp configure failure\n");
144 return err;
145 }
146
147 cs4232_pcm_port[dev] = pnp_port_start(pdev, 0);
148 fm_port[dev] = pnp_port_start(pdev, 1);
149 dma1[dev] = pnp_dma(pdev, 0);
150 dma2[dev] = pnp_dma(pdev, 1);
151 cs4232_pcm_irq[dev] = pnp_irq(pdev, 0);
152
153 /* Synth initialization */
154
155 pdev = acard->synth;
156
157 err = pnp_activate_dev(pdev);
158 if (err < 0) {
159 snd_printk(KERN_ERR "PnP ICS2115 pnp configure failure\n");
160 return err;
161 }
162
163 ics2115_port[dev] = pnp_port_start(pdev, 0);
164 ics2115_irq[dev] = pnp_irq(pdev, 0);
165
166 /* CS4232 MPU initialization. Configure this only if
167 explicitly requested, since its physically inaccessible and
168 consumes another IRQ.
169 */
170
171 if (use_cs4232_midi[dev]) {
172
173 pdev = acard->mpu;
174
175 err = pnp_activate_dev(pdev);
176 if (err < 0) {
177 snd_printk(KERN_ERR "PnP MPU401 pnp configure failure\n");
178 cs4232_mpu_port[dev] = SNDRV_AUTO_PORT;
179 } else {
180 cs4232_mpu_port[dev] = pnp_port_start(pdev, 0);
181 cs4232_mpu_irq[dev] = pnp_irq(pdev, 0);
182 }
183
184 snd_printk (KERN_INFO "CS4232 MPU: port=0x%lx, irq=%i\n",
185 cs4232_mpu_port[dev],
186 cs4232_mpu_irq[dev]);
187 }
188
189 snd_printdd ("CS4232: pcm port=0x%lx, fm port=0x%lx, dma1=%i, dma2=%i, irq=%i\nICS2115: port=0x%lx, irq=%i\n",
190 cs4232_pcm_port[dev],
191 fm_port[dev],
192 dma1[dev],
193 dma2[dev],
194 cs4232_pcm_irq[dev],
195 ics2115_port[dev],
196 ics2115_irq[dev]);
197
198 return 0;
199 }
200
201 #endif /* CONFIG_PNP */
202
203 static irqreturn_t snd_wavefront_ics2115_interrupt(int irq, void *dev_id)
204 {
205 snd_wavefront_card_t *acard;
206
207 acard = (snd_wavefront_card_t *) dev_id;
208
209 if (acard == NULL)
210 return IRQ_NONE;
211
212 if (acard->wavefront.interrupts_are_midi) {
213 snd_wavefront_midi_interrupt (acard);
214 } else {
215 snd_wavefront_internal_interrupt (acard);
216 }
217 return IRQ_HANDLED;
218 }
219
220 static struct snd_hwdep *snd_wavefront_new_synth(struct snd_card *card,
221 int hw_dev,
222 snd_wavefront_card_t *acard)
223 {
224 struct snd_hwdep *wavefront_synth;
225
226 if (snd_wavefront_detect (acard) < 0) {
227 return NULL;
228 }
229
230 if (snd_wavefront_start (&acard->wavefront) < 0) {
231 return NULL;
232 }
233
234 if (snd_hwdep_new(card, "WaveFront", hw_dev, &wavefront_synth) < 0)
235 return NULL;
236 strcpy (wavefront_synth->name,
237 "WaveFront (ICS2115) wavetable synthesizer");
238 wavefront_synth->ops.open = snd_wavefront_synth_open;
239 wavefront_synth->ops.release = snd_wavefront_synth_release;
240 wavefront_synth->ops.ioctl = snd_wavefront_synth_ioctl;
241
242 return wavefront_synth;
243 }
244
245 static struct snd_hwdep *snd_wavefront_new_fx(struct snd_card *card,
246 int hw_dev,
247 snd_wavefront_card_t *acard,
248 unsigned long port)
249
250 {
251 struct snd_hwdep *fx_processor;
252
253 if (snd_wavefront_fx_start (&acard->wavefront)) {
254 snd_printk (KERN_ERR "cannot initialize YSS225 FX processor");
255 return NULL;
256 }
257
258 if (snd_hwdep_new (card, "YSS225", hw_dev, &fx_processor) < 0)
259 return NULL;
260 sprintf (fx_processor->name, "YSS225 FX Processor at 0x%lx", port);
261 fx_processor->ops.open = snd_wavefront_fx_open;
262 fx_processor->ops.release = snd_wavefront_fx_release;
263 fx_processor->ops.ioctl = snd_wavefront_fx_ioctl;
264
265 return fx_processor;
266 }
267
268 static snd_wavefront_mpu_id internal_id = internal_mpu;
269 static snd_wavefront_mpu_id external_id = external_mpu;
270
271 static struct snd_rawmidi *snd_wavefront_new_midi(struct snd_card *card,
272 int midi_dev,
273 snd_wavefront_card_t *acard,
274 unsigned long port,
275 snd_wavefront_mpu_id mpu)
276
277 {
278 struct snd_rawmidi *rmidi;
279 static int first = 1;
280
281 if (first) {
282 first = 0;
283 acard->wavefront.midi.base = port;
284 if (snd_wavefront_midi_start (acard)) {
285 snd_printk (KERN_ERR "cannot initialize MIDI interface\n");
286 return NULL;
287 }
288 }
289
290 if (snd_rawmidi_new (card, "WaveFront MIDI", midi_dev, 1, 1, &rmidi) < 0)
291 return NULL;
292
293 if (mpu == internal_mpu) {
294 strcpy(rmidi->name, "WaveFront MIDI (Internal)");
295 rmidi->private_data = &internal_id;
296 } else {
297 strcpy(rmidi->name, "WaveFront MIDI (External)");
298 rmidi->private_data = &external_id;
299 }
300
301 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_wavefront_midi_output);
302 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_wavefront_midi_input);
303
304 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
305 SNDRV_RAWMIDI_INFO_INPUT |
306 SNDRV_RAWMIDI_INFO_DUPLEX;
307
308 return rmidi;
309 }
310
311 static int snd_wavefront_card_new(struct device *pdev, int dev,
312 struct snd_card **cardp)
313 {
314 struct snd_card *card;
315 snd_wavefront_card_t *acard;
316 int err;
317
318 err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
319 sizeof(snd_wavefront_card_t), &card);
320 if (err < 0)
321 return err;
322
323 acard = card->private_data;
324 acard->wavefront.irq = -1;
325 spin_lock_init(&acard->wavefront.irq_lock);
326 init_waitqueue_head(&acard->wavefront.interrupt_sleeper);
327 spin_lock_init(&acard->wavefront.midi.open);
328 spin_lock_init(&acard->wavefront.midi.virtual);
329 acard->wavefront.card = card;
330
331 *cardp = card;
332 return 0;
333 }
334
335 static int
336 snd_wavefront_probe (struct snd_card *card, int dev)
337 {
338 snd_wavefront_card_t *acard = card->private_data;
339 struct snd_wss *chip;
340 struct snd_hwdep *wavefront_synth;
341 struct snd_rawmidi *ics2115_internal_rmidi = NULL;
342 struct snd_rawmidi *ics2115_external_rmidi = NULL;
343 struct snd_hwdep *fx_processor;
344 int hw_dev = 0, midi_dev = 0, err;
345
346 /* --------- PCM --------------- */
347
348 err = snd_wss_create(card, cs4232_pcm_port[dev], -1,
349 cs4232_pcm_irq[dev], dma1[dev], dma2[dev],
350 WSS_HW_DETECT, 0, &chip);
351 if (err < 0) {
352 snd_printk(KERN_ERR "can't allocate WSS device\n");
353 return err;
354 }
355
356 err = snd_wss_pcm(chip, 0);
357 if (err < 0)
358 return err;
359
360 err = snd_wss_timer(chip, 0);
361 if (err < 0)
362 return err;
363
364 /* ---------- OPL3 synth --------- */
365
366 if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
367 struct snd_opl3 *opl3;
368
369 err = snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
370 OPL3_HW_OPL3_CS, 0, &opl3);
371 if (err < 0) {
372 snd_printk (KERN_ERR "can't allocate or detect OPL3 synth\n");
373 return err;
374 }
375
376 err = snd_opl3_hwdep_new(opl3, hw_dev, 1, NULL);
377 if (err < 0)
378 return err;
379 hw_dev++;
380 }
381
382 /* ------- ICS2115 Wavetable synth ------- */
383
384 acard->wavefront.res_base =
385 devm_request_region(card->dev, ics2115_port[dev], 16,
386 "ICS2115");
387 if (acard->wavefront.res_base == NULL) {
388 snd_printk(KERN_ERR "unable to grab ICS2115 i/o region 0x%lx-0x%lx\n",
389 ics2115_port[dev], ics2115_port[dev] + 16 - 1);
390 return -EBUSY;
391 }
392 if (devm_request_irq(card->dev, ics2115_irq[dev],
393 snd_wavefront_ics2115_interrupt,
394 0, "ICS2115", acard)) {
395 snd_printk(KERN_ERR "unable to use ICS2115 IRQ %d\n", ics2115_irq[dev]);
396 return -EBUSY;
397 }
398
399 acard->wavefront.irq = ics2115_irq[dev];
400 card->sync_irq = acard->wavefront.irq;
401 acard->wavefront.base = ics2115_port[dev];
402
403 wavefront_synth = snd_wavefront_new_synth(card, hw_dev, acard);
404 if (wavefront_synth == NULL) {
405 snd_printk (KERN_ERR "can't create WaveFront synth device\n");
406 return -ENOMEM;
407 }
408
409 strcpy (wavefront_synth->name, "ICS2115 Wavetable MIDI Synthesizer");
410 wavefront_synth->iface = SNDRV_HWDEP_IFACE_ICS2115;
411 hw_dev++;
412
413 /* --------- Mixer ------------ */
414
415 err = snd_wss_mixer(chip);
416 if (err < 0) {
417 snd_printk (KERN_ERR "can't allocate mixer device\n");
418 return err;
419 }
420
421 /* -------- CS4232 MPU-401 interface -------- */
422
423 if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) {
424 err = snd_mpu401_uart_new(card, midi_dev, MPU401_HW_CS4232,
425 cs4232_mpu_port[dev], 0,
426 cs4232_mpu_irq[dev], NULL);
427 if (err < 0) {
428 snd_printk (KERN_ERR "can't allocate CS4232 MPU-401 device\n");
429 return err;
430 }
431 midi_dev++;
432 }
433
434 /* ------ ICS2115 internal MIDI ------------ */
435
436 if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) {
437 ics2115_internal_rmidi =
438 snd_wavefront_new_midi (card,
439 midi_dev,
440 acard,
441 ics2115_port[dev],
442 internal_mpu);
443 if (ics2115_internal_rmidi == NULL) {
444 snd_printk (KERN_ERR "can't setup ICS2115 internal MIDI device\n");
445 return -ENOMEM;
446 }
447 midi_dev++;
448 }
449
450 /* ------ ICS2115 external MIDI ------------ */
451
452 if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) {
453 ics2115_external_rmidi =
454 snd_wavefront_new_midi (card,
455 midi_dev,
456 acard,
457 ics2115_port[dev],
458 external_mpu);
459 if (ics2115_external_rmidi == NULL) {
460 snd_printk (KERN_ERR "can't setup ICS2115 external MIDI device\n");
461 return -ENOMEM;
462 }
463 midi_dev++;
464 }
465
466 /* FX processor for Tropez+ */
467
468 if (acard->wavefront.has_fx) {
469 fx_processor = snd_wavefront_new_fx (card,
470 hw_dev,
471 acard,
472 ics2115_port[dev]);
473 if (fx_processor == NULL) {
474 snd_printk (KERN_ERR "can't setup FX device\n");
475 return -ENOMEM;
476 }
477
478 hw_dev++;
479
480 strcpy(card->driver, "Tropez+");
481 strcpy(card->shortname, "Turtle Beach Tropez+");
482 } else {
483 /* Need a way to distinguish between Maui and Tropez */
484 strcpy(card->driver, "WaveFront");
485 strcpy(card->shortname, "Turtle Beach WaveFront");
486 }
487
488 /* ----- Register the card --------- */
489
490 /* Not safe to include "Turtle Beach" in longname, due to
491 length restrictions
492 */
493
494 sprintf(card->longname, "%s PCM 0x%lx irq %d dma %d",
495 card->driver,
496 chip->port,
497 cs4232_pcm_irq[dev],
498 dma1[dev]);
499
500 if (dma2[dev] >= 0 && dma2[dev] < 8)
501 sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
502
503 if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) {
504 sprintf (card->longname + strlen (card->longname),
505 " MPU-401 0x%lx irq %d",
506 cs4232_mpu_port[dev],
507 cs4232_mpu_irq[dev]);
508 }
509
510 sprintf (card->longname + strlen (card->longname),
511 " SYNTH 0x%lx irq %d",
512 ics2115_port[dev],
513 ics2115_irq[dev]);
514
515 return snd_card_register(card);
516 }
517
518 static int snd_wavefront_isa_match(struct device *pdev,
519 unsigned int dev)
520 {
521 if (!enable[dev])
522 return 0;
523 #ifdef CONFIG_PNP
524 if (isapnp[dev])
525 return 0;
526 #endif
527 if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) {
528 snd_printk(KERN_ERR "specify CS4232 port\n");
529 return 0;
530 }
531 if (ics2115_port[dev] == SNDRV_AUTO_PORT) {
532 snd_printk(KERN_ERR "specify ICS2115 port\n");
533 return 0;
534 }
535 return 1;
536 }
537
538 static int snd_wavefront_isa_probe(struct device *pdev,
539 unsigned int dev)
540 {
541 struct snd_card *card;
542 int err;
543
544 err = snd_wavefront_card_new(pdev, dev, &card);
545 if (err < 0)
546 return err;
547 err = snd_wavefront_probe(card, dev);
548 if (err < 0)
549 return err;
550
551 dev_set_drvdata(pdev, card);
552 return 0;
553 }
554
555 #define DEV_NAME "wavefront"
556
557 static struct isa_driver snd_wavefront_driver = {
558 .match = snd_wavefront_isa_match,
559 .probe = snd_wavefront_isa_probe,
560 /* FIXME: suspend, resume */
561 .driver = {
562 .name = DEV_NAME
563 },
564 };
565
566
567 #ifdef CONFIG_PNP
568 static int snd_wavefront_pnp_detect(struct pnp_card_link *pcard,
569 const struct pnp_card_device_id *pid)
570 {
571 static int dev;
572 struct snd_card *card;
573 int res;
574
575 for ( ; dev < SNDRV_CARDS; dev++) {
576 if (enable[dev] && isapnp[dev])
577 break;
578 }
579 if (dev >= SNDRV_CARDS)
580 return -ENODEV;
581
582 res = snd_wavefront_card_new(&pcard->card->dev, dev, &card);
583 if (res < 0)
584 return res;
585
586 if (snd_wavefront_pnp (dev, card->private_data, pcard, pid) < 0) {
587 if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) {
588 snd_printk (KERN_ERR "isapnp detection failed\n");
589 return -ENODEV;
590 }
591 }
592
593 res = snd_wavefront_probe(card, dev);
594 if (res < 0)
595 return res;
596
597 pnp_set_card_drvdata(pcard, card);
598 dev++;
599 return 0;
600 }
601
602 static struct pnp_card_driver wavefront_pnpc_driver = {
603 .flags = PNP_DRIVER_RES_DISABLE,
604 .name = "wavefront",
605 .id_table = snd_wavefront_pnpids,
606 .probe = snd_wavefront_pnp_detect,
607 /* FIXME: suspend,resume */
608 };
609
610 #endif /* CONFIG_PNP */
611
612 static int __init alsa_card_wavefront_init(void)
613 {
614 int err;
615
616 err = isa_register_driver(&snd_wavefront_driver, SNDRV_CARDS);
617 #ifdef CONFIG_PNP
618 if (!err)
619 isa_registered = 1;
620
621 err = pnp_register_card_driver(&wavefront_pnpc_driver);
622 if (!err)
623 pnp_registered = 1;
624
625 if (isa_registered)
626 err = 0;
627 #endif
628 return err;
629 }
630
631 static void __exit alsa_card_wavefront_exit(void)
632 {
633 #ifdef CONFIG_PNP
634 if (pnp_registered)
635 pnp_unregister_card_driver(&wavefront_pnpc_driver);
636 if (isa_registered)
637 #endif
638 isa_unregister_driver(&snd_wavefront_driver);
639 }
640
641 module_init(alsa_card_wavefront_init)
642 module_exit(alsa_card_wavefront_exit)
643
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