2 * ALSA card-level driver for Turtle Beach Wavefront cards
3 * (Maui,Tropez,Tropez+)
5 * Copyright (c) 1997-1999 by Paul Barton-Davis <pbd@op.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/interrupt.h>
25 #include <linux/slab.h>
26 #include <linux/err.h>
27 #include <linux/platform_device.h>
28 #include <linux/pnp.h>
29 #include <linux/moduleparam.h>
30 #include <sound/core.h>
31 #include <sound/initval.h>
32 #include <sound/opl3.h>
33 #include <sound/snd_wavefront.h>
35 MODULE_AUTHOR("Paul Barton-Davis <pbd@op.net>");
36 MODULE_DESCRIPTION("Turtle Beach Wavefront");
37 MODULE_LICENSE("GPL");
38 MODULE_SUPPORTED_DEVICE("{{Turtle Beach,Maui/Tropez/Tropez+}}");
40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
43 static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
44 static long cs4232_pcm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
45 static int cs4232_pcm_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
46 static long cs4232_mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
47 static int cs4232_mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */
48 static long ics2115_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
49 static int ics2115_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,9,11,12,15 */
50 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
51 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
52 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
53 static int use_cs4232_midi[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
55 module_param_array(index, int, NULL, 0444);
56 MODULE_PARM_DESC(index, "Index value for WaveFront soundcard.");
57 module_param_array(id, charp, NULL, 0444);
58 MODULE_PARM_DESC(id, "ID string for WaveFront soundcard.");
59 module_param_array(enable, bool, NULL, 0444);
60 MODULE_PARM_DESC(enable, "Enable WaveFront soundcard.");
62 module_param_array(isapnp, bool, NULL, 0444);
63 MODULE_PARM_DESC(isapnp, "ISA PnP detection for WaveFront soundcards.");
65 module_param_array(cs4232_pcm_port, long, NULL, 0444);
66 MODULE_PARM_DESC(cs4232_pcm_port, "Port # for CS4232 PCM interface.");
67 module_param_array(cs4232_pcm_irq, int, NULL, 0444);
68 MODULE_PARM_DESC(cs4232_pcm_irq, "IRQ # for CS4232 PCM interface.");
69 module_param_array(dma1, int, NULL, 0444);
70 MODULE_PARM_DESC(dma1, "DMA1 # for CS4232 PCM interface.");
71 module_param_array(dma2, int, NULL, 0444);
72 MODULE_PARM_DESC(dma2, "DMA2 # for CS4232 PCM interface.");
73 module_param_array(cs4232_mpu_port, long, NULL, 0444);
74 MODULE_PARM_DESC(cs4232_mpu_port, "port # for CS4232 MPU-401 interface.");
75 module_param_array(cs4232_mpu_irq, int, NULL, 0444);
76 MODULE_PARM_DESC(cs4232_mpu_irq, "IRQ # for CS4232 MPU-401 interface.");
77 module_param_array(ics2115_irq, int, NULL, 0444);
78 MODULE_PARM_DESC(ics2115_irq, "IRQ # for ICS2115.");
79 module_param_array(ics2115_port, long, NULL, 0444);
80 MODULE_PARM_DESC(ics2115_port, "Port # for ICS2115.");
81 module_param_array(fm_port, long, NULL, 0444);
82 MODULE_PARM_DESC(fm_port, "FM port #.");
83 module_param_array(use_cs4232_midi, bool, NULL, 0444);
84 MODULE_PARM_DESC(use_cs4232_midi, "Use CS4232 MPU-401 interface (inaccessibly located inside your computer)");
86 static struct platform_device *platform_devices[SNDRV_CARDS];
87 static int pnp_registered;
92 static struct pnp_card_device_id snd_wavefront_pnpids[] = {
94 { .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } },
96 { .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } },
100 MODULE_DEVICE_TABLE(pnp_card, snd_wavefront_pnpids);
103 snd_wavefront_pnp (int dev, snd_wavefront_card_t *acard, struct pnp_card_link *card,
104 const struct pnp_card_device_id *id)
106 struct pnp_dev *pdev;
107 struct pnp_resource_table *cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
113 /* Check for each logical device. */
115 /* CS4232 chip (aka "windows sound system") is logical device 0 */
117 acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL);
118 if (acard->wss == NULL) {
123 /* there is a game port at logical device 1, but we ignore it completely */
125 /* the control interface is logical device 2, but we ignore it
126 completely. in fact, nobody even seems to know what it
130 /* Only configure the CS4232 MIDI interface if its been
131 specifically requested. It is logical device 3.
134 if (use_cs4232_midi[dev]) {
135 acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL);
136 if (acard->mpu == NULL) {
142 /* The ICS2115 synth is logical device 4 */
144 acard->synth = pnp_request_card_device(card, id->devs[3].id, NULL);
145 if (acard->synth == NULL) {
150 /* PCM/FM initialization */
154 pnp_init_resource_table(cfg);
156 /* An interesting note from the Tropez+ FAQ:
158 Q. [Ports] Why is the base address of the WSS I/O ports off by 4?
160 A. WSS I/O requires a block of 8 I/O addresses ("ports"). Of these, the first
161 4 are used to identify and configure the board. With the advent of PnP,
162 these first 4 addresses have become obsolete, and software applications
163 only use the last 4 addresses to control the codec chip. Therefore, the
164 base address setting "skips past" the 4 unused addresses.
168 if (cs4232_pcm_port[dev] != SNDRV_AUTO_PORT)
169 pnp_resource_change(&cfg->port_resource[0], cs4232_pcm_port[dev], 4);
170 if (fm_port[dev] != SNDRV_AUTO_PORT)
171 pnp_resource_change(&cfg->port_resource[1], fm_port[dev], 4);
172 if (dma1[dev] != SNDRV_AUTO_DMA)
173 pnp_resource_change(&cfg->dma_resource[0], dma1[dev], 1);
174 if (dma2[dev] != SNDRV_AUTO_DMA)
175 pnp_resource_change(&cfg->dma_resource[1], dma2[dev], 1);
176 if (cs4232_pcm_irq[dev] != SNDRV_AUTO_IRQ)
177 pnp_resource_change(&cfg->irq_resource[0], cs4232_pcm_irq[dev], 1);
179 if (pnp_manual_config_dev(pdev, cfg, 0) < 0)
180 snd_printk(KERN_ERR "PnP WSS the requested resources are invalid, using auto config\n");
181 err = pnp_activate_dev(pdev);
183 snd_printk(KERN_ERR "PnP WSS pnp configure failure\n");
188 cs4232_pcm_port[dev] = pnp_port_start(pdev, 0);
189 fm_port[dev] = pnp_port_start(pdev, 1);
190 dma1[dev] = pnp_dma(pdev, 0);
191 dma2[dev] = pnp_dma(pdev, 1);
192 cs4232_pcm_irq[dev] = pnp_irq(pdev, 0);
194 /* Synth initialization */
198 pnp_init_resource_table(cfg);
200 if (ics2115_port[dev] != SNDRV_AUTO_PORT) {
201 pnp_resource_change(&cfg->port_resource[0], ics2115_port[dev], 16);
204 if (ics2115_port[dev] != SNDRV_AUTO_IRQ) {
205 pnp_resource_change(&cfg->irq_resource[0], ics2115_irq[dev], 1);
208 if (pnp_manual_config_dev(pdev, cfg, 0) < 0)
209 snd_printk(KERN_ERR "PnP ICS2115 the requested resources are invalid, using auto config\n");
210 err = pnp_activate_dev(pdev);
212 snd_printk(KERN_ERR "PnP ICS2115 pnp configure failure\n");
217 ics2115_port[dev] = pnp_port_start(pdev, 0);
218 ics2115_irq[dev] = pnp_irq(pdev, 0);
220 /* CS4232 MPU initialization. Configure this only if
221 explicitly requested, since its physically inaccessible and
222 consumes another IRQ.
225 if (use_cs4232_midi[dev]) {
229 pnp_init_resource_table(cfg);
231 if (cs4232_mpu_port[dev] != SNDRV_AUTO_PORT)
232 pnp_resource_change(&cfg->port_resource[0], cs4232_mpu_port[dev], 2);
233 if (cs4232_mpu_irq[dev] != SNDRV_AUTO_IRQ)
234 pnp_resource_change(&cfg->port_resource[0], cs4232_mpu_irq[dev], 1);
236 if (pnp_manual_config_dev(pdev, cfg, 0) < 0)
237 snd_printk(KERN_ERR "PnP MPU401 the requested resources are invalid, using auto config\n");
238 err = pnp_activate_dev(pdev);
240 snd_printk(KERN_ERR "PnP MPU401 pnp configure failure\n");
241 cs4232_mpu_port[dev] = SNDRV_AUTO_PORT;
243 cs4232_mpu_port[dev] = pnp_port_start(pdev, 0);
244 cs4232_mpu_irq[dev] = pnp_irq(pdev, 0);
247 snd_printk (KERN_INFO "CS4232 MPU: port=0x%lx, irq=%i\n",
248 cs4232_mpu_port[dev],
249 cs4232_mpu_irq[dev]);
252 snd_printdd ("CS4232: pcm port=0x%lx, fm port=0x%lx, dma1=%i, dma2=%i, irq=%i\nICS2115: port=0x%lx, irq=%i\n",
253 cs4232_pcm_port[dev],
265 #endif /* CONFIG_PNP */
267 static irqreturn_t snd_wavefront_ics2115_interrupt(int irq,
269 struct pt_regs *regs)
271 snd_wavefront_card_t *acard;
273 acard = (snd_wavefront_card_t *) dev_id;
278 if (acard->wavefront.interrupts_are_midi) {
279 snd_wavefront_midi_interrupt (acard);
281 snd_wavefront_internal_interrupt (acard);
286 static struct snd_hwdep * __devinit
287 snd_wavefront_new_synth (struct snd_card *card,
289 snd_wavefront_card_t *acard)
291 struct snd_hwdep *wavefront_synth;
293 if (snd_wavefront_detect (acard) < 0) {
297 if (snd_wavefront_start (&acard->wavefront) < 0) {
301 if (snd_hwdep_new(card, "WaveFront", hw_dev, &wavefront_synth) < 0)
303 strcpy (wavefront_synth->name,
304 "WaveFront (ICS2115) wavetable synthesizer");
305 wavefront_synth->ops.open = snd_wavefront_synth_open;
306 wavefront_synth->ops.release = snd_wavefront_synth_release;
307 wavefront_synth->ops.ioctl = snd_wavefront_synth_ioctl;
309 return wavefront_synth;
312 static struct snd_hwdep * __devinit
313 snd_wavefront_new_fx (struct snd_card *card,
315 snd_wavefront_card_t *acard,
319 struct snd_hwdep *fx_processor;
321 if (snd_wavefront_fx_start (&acard->wavefront)) {
322 snd_printk (KERN_ERR "cannot initialize YSS225 FX processor");
326 if (snd_hwdep_new (card, "YSS225", hw_dev, &fx_processor) < 0)
328 sprintf (fx_processor->name, "YSS225 FX Processor at 0x%lx", port);
329 fx_processor->ops.open = snd_wavefront_fx_open;
330 fx_processor->ops.release = snd_wavefront_fx_release;
331 fx_processor->ops.ioctl = snd_wavefront_fx_ioctl;
336 static snd_wavefront_mpu_id internal_id = internal_mpu;
337 static snd_wavefront_mpu_id external_id = external_mpu;
339 static struct snd_rawmidi *__devinit
340 snd_wavefront_new_midi (struct snd_card *card,
342 snd_wavefront_card_t *acard,
344 snd_wavefront_mpu_id mpu)
347 struct snd_rawmidi *rmidi;
348 static int first = 1;
352 acard->wavefront.midi.base = port;
353 if (snd_wavefront_midi_start (acard)) {
354 snd_printk (KERN_ERR "cannot initialize MIDI interface\n");
359 if (snd_rawmidi_new (card, "WaveFront MIDI", midi_dev, 1, 1, &rmidi) < 0)
362 if (mpu == internal_mpu) {
363 strcpy(rmidi->name, "WaveFront MIDI (Internal)");
364 rmidi->private_data = &internal_id;
366 strcpy(rmidi->name, "WaveFront MIDI (External)");
367 rmidi->private_data = &external_id;
370 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_wavefront_midi_output);
371 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_wavefront_midi_input);
373 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
374 SNDRV_RAWMIDI_INFO_INPUT |
375 SNDRV_RAWMIDI_INFO_DUPLEX;
381 snd_wavefront_free(struct snd_card *card)
383 snd_wavefront_card_t *acard = (snd_wavefront_card_t *)card->private_data;
386 release_and_free_resource(acard->wavefront.res_base);
387 if (acard->wavefront.irq > 0)
388 free_irq(acard->wavefront.irq, (void *)acard);
392 static struct snd_card *snd_wavefront_card_new(int dev)
394 struct snd_card *card;
395 snd_wavefront_card_t *acard;
397 card = snd_card_new (index[dev], id[dev], THIS_MODULE,
398 sizeof(snd_wavefront_card_t));
402 acard = card->private_data;
403 acard->wavefront.irq = -1;
404 spin_lock_init(&acard->wavefront.irq_lock);
405 init_waitqueue_head(&acard->wavefront.interrupt_sleeper);
406 spin_lock_init(&acard->wavefront.midi.open);
407 spin_lock_init(&acard->wavefront.midi.virtual);
408 card->private_free = snd_wavefront_free;
414 snd_wavefront_probe (struct snd_card *card, int dev)
416 snd_wavefront_card_t *acard = card->private_data;
417 struct snd_cs4231 *chip;
418 struct snd_hwdep *wavefront_synth;
419 struct snd_rawmidi *ics2115_internal_rmidi = NULL;
420 struct snd_rawmidi *ics2115_external_rmidi = NULL;
421 struct snd_hwdep *fx_processor;
422 int hw_dev = 0, midi_dev = 0, err;
424 /* --------- PCM --------------- */
426 if ((err = snd_cs4231_create (card,
427 cs4232_pcm_port[dev],
432 CS4231_HW_DETECT, 0, &chip)) < 0) {
433 snd_printk (KERN_ERR "can't allocate CS4231 device\n");
437 if ((err = snd_cs4231_pcm (chip, 0, NULL)) < 0)
440 if ((err = snd_cs4231_timer (chip, 0, NULL)) < 0)
443 /* ---------- OPL3 synth --------- */
445 if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
446 struct snd_opl3 *opl3;
448 if ((err = snd_opl3_create(card,
453 snd_printk (KERN_ERR "can't allocate or detect OPL3 synth\n");
457 if ((err = snd_opl3_hwdep_new(opl3, hw_dev, 1, NULL)) < 0)
462 /* ------- ICS2115 Wavetable synth ------- */
464 if ((acard->wavefront.res_base = request_region(ics2115_port[dev], 16,
465 "ICS2115")) == NULL) {
466 snd_printk(KERN_ERR "unable to grab ICS2115 i/o region 0x%lx-0x%lx\n",
467 ics2115_port[dev], ics2115_port[dev] + 16 - 1);
470 if (request_irq(ics2115_irq[dev], snd_wavefront_ics2115_interrupt,
471 SA_INTERRUPT, "ICS2115", acard)) {
472 snd_printk(KERN_ERR "unable to use ICS2115 IRQ %d\n", ics2115_irq[dev]);
476 acard->wavefront.irq = ics2115_irq[dev];
477 acard->wavefront.base = ics2115_port[dev];
479 if ((wavefront_synth = snd_wavefront_new_synth (card, hw_dev, acard)) == NULL) {
480 snd_printk (KERN_ERR "can't create WaveFront synth device\n");
484 strcpy (wavefront_synth->name, "ICS2115 Wavetable MIDI Synthesizer");
485 wavefront_synth->iface = SNDRV_HWDEP_IFACE_ICS2115;
488 /* --------- Mixer ------------ */
490 if ((err = snd_cs4231_mixer(chip)) < 0) {
491 snd_printk (KERN_ERR "can't allocate mixer device\n");
495 /* -------- CS4232 MPU-401 interface -------- */
497 if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) {
498 if ((err = snd_mpu401_uart_new(card, midi_dev, MPU401_HW_CS4232,
499 cs4232_mpu_port[dev], 0,
503 snd_printk (KERN_ERR "can't allocate CS4232 MPU-401 device\n");
509 /* ------ ICS2115 internal MIDI ------------ */
511 if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) {
512 ics2115_internal_rmidi =
513 snd_wavefront_new_midi (card,
518 if (ics2115_internal_rmidi == NULL) {
519 snd_printk (KERN_ERR "can't setup ICS2115 internal MIDI device\n");
525 /* ------ ICS2115 external MIDI ------------ */
527 if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) {
528 ics2115_external_rmidi =
529 snd_wavefront_new_midi (card,
534 if (ics2115_external_rmidi == NULL) {
535 snd_printk (KERN_ERR "can't setup ICS2115 external MIDI device\n");
541 /* FX processor for Tropez+ */
543 if (acard->wavefront.has_fx) {
544 fx_processor = snd_wavefront_new_fx (card,
548 if (fx_processor == NULL) {
549 snd_printk (KERN_ERR "can't setup FX device\n");
555 strcpy(card->driver, "Tropez+");
556 strcpy(card->shortname, "Turtle Beach Tropez+");
558 /* Need a way to distinguish between Maui and Tropez */
559 strcpy(card->driver, "WaveFront");
560 strcpy(card->shortname, "Turtle Beach WaveFront");
563 /* ----- Register the card --------- */
565 /* Not safe to include "Turtle Beach" in longname, due to
569 sprintf(card->longname, "%s PCM 0x%lx irq %d dma %d",
575 if (dma2[dev] >= 0 && dma2[dev] < 8)
576 sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
578 if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) {
579 sprintf (card->longname + strlen (card->longname),
580 " MPU-401 0x%lx irq %d",
581 cs4232_mpu_port[dev],
582 cs4232_mpu_irq[dev]);
585 sprintf (card->longname + strlen (card->longname),
586 " SYNTH 0x%lx irq %d",
590 return snd_card_register(card);
593 static int __init snd_wavefront_nonpnp_probe(struct platform_device *pdev)
596 struct snd_card *card;
599 if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) {
600 snd_printk("specify CS4232 port\n");
603 if (ics2115_port[dev] == SNDRV_AUTO_PORT) {
604 snd_printk("specify ICS2115 port\n");
608 card = snd_wavefront_card_new(dev);
611 snd_card_set_dev(card, &pdev->dev);
612 if ((err = snd_wavefront_probe(card, dev)) < 0) {
617 platform_set_drvdata(pdev, card);
621 static int __devexit snd_wavefront_nonpnp_remove(struct platform_device *devptr)
623 snd_card_free(platform_get_drvdata(devptr));
624 platform_set_drvdata(devptr, NULL);
628 #define WAVEFRONT_DRIVER "snd_wavefront"
630 static struct platform_driver snd_wavefront_driver = {
631 .probe = snd_wavefront_nonpnp_probe,
632 .remove = __devexit_p(snd_wavefront_nonpnp_remove),
633 /* FIXME: suspend, resume */
635 .name = WAVEFRONT_DRIVER
642 static int __devinit snd_wavefront_pnp_detect(struct pnp_card_link *pcard,
643 const struct pnp_card_device_id *pid)
646 struct snd_card *card;
649 for ( ; dev < SNDRV_CARDS; dev++) {
650 if (enable[dev] && isapnp[dev])
653 if (dev >= SNDRV_CARDS)
656 card = snd_wavefront_card_new(dev);
660 if (snd_wavefront_pnp (dev, card->private_data, pcard, pid) < 0) {
661 if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) {
662 snd_printk (KERN_ERR "isapnp detection failed\n");
663 snd_card_free (card);
667 snd_card_set_dev(card, &pcard->card->dev);
669 if ((res = snd_wavefront_probe(card, dev)) < 0)
672 pnp_set_card_drvdata(pcard, card);
677 static void __devexit snd_wavefront_pnp_remove(struct pnp_card_link * pcard)
679 snd_card_free(pnp_get_card_drvdata(pcard));
680 pnp_set_card_drvdata(pcard, NULL);
683 static struct pnp_card_driver wavefront_pnpc_driver = {
684 .flags = PNP_DRIVER_RES_DISABLE,
686 .id_table = snd_wavefront_pnpids,
687 .probe = snd_wavefront_pnp_detect,
688 .remove = __devexit_p(snd_wavefront_pnp_remove),
689 /* FIXME: suspend,resume */
692 #endif /* CONFIG_PNP */
694 static void __init_or_module snd_wavefront_unregister_all(void)
699 pnp_unregister_card_driver(&wavefront_pnpc_driver);
700 for (i = 0; i < ARRAY_SIZE(platform_devices); ++i)
701 platform_device_unregister(platform_devices[i]);
702 platform_driver_unregister(&snd_wavefront_driver);
705 static int __init alsa_card_wavefront_init(void)
707 int i, err, cards = 0;
709 if ((err = platform_driver_register(&snd_wavefront_driver)) < 0)
712 for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
713 struct platform_device *device;
718 device = platform_device_register_simple(WAVEFRONT_DRIVER,
720 if (IS_ERR(device)) {
721 err = PTR_ERR(device);
724 platform_devices[i] = device;
728 i = pnp_register_card_driver(&wavefront_pnpc_driver);
736 printk (KERN_ERR "No WaveFront cards found or devices busy\n");
744 snd_wavefront_unregister_all();
748 static void __exit alsa_card_wavefront_exit(void)
750 snd_wavefront_unregister_all();
753 module_init(alsa_card_wavefront_init)
754 module_exit(alsa_card_wavefront_exit)