]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz>, | |
3 | * Hannu Savolainen 1993-1996, | |
4 | * Rob Hooft | |
5 | * | |
6 | * Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips) | |
7 | * | |
8 | * Most if code is ported from OSS/Lite. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | */ | |
25 | ||
26 | #include <sound/opl3.h> | |
27 | #include <asm/io.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/ioport.h> | |
32 | #include <sound/minors.h> | |
33 | ||
34 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Hannu Savolainen 1993-1996, Rob Hooft"); | |
35 | MODULE_DESCRIPTION("Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips)"); | |
36 | MODULE_LICENSE("GPL"); | |
37 | ||
38 | extern char snd_opl3_regmap[MAX_OPL2_VOICES][4]; | |
39 | ||
40 | static void snd_opl2_command(opl3_t * opl3, unsigned short cmd, unsigned char val) | |
41 | { | |
42 | unsigned long flags; | |
43 | unsigned long port; | |
44 | ||
45 | /* | |
46 | * The original 2-OP synth requires a quite long delay | |
47 | * after writing to a register. | |
48 | */ | |
49 | ||
50 | port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; | |
51 | ||
52 | spin_lock_irqsave(&opl3->reg_lock, flags); | |
53 | ||
54 | outb((unsigned char) cmd, port); | |
55 | udelay(10); | |
56 | ||
57 | outb((unsigned char) val, port + 1); | |
58 | udelay(30); | |
59 | ||
60 | spin_unlock_irqrestore(&opl3->reg_lock, flags); | |
61 | } | |
62 | ||
63 | static void snd_opl3_command(opl3_t * opl3, unsigned short cmd, unsigned char val) | |
64 | { | |
65 | unsigned long flags; | |
66 | unsigned long port; | |
67 | ||
68 | /* | |
69 | * The OPL-3 survives with just two INBs | |
70 | * after writing to a register. | |
71 | */ | |
72 | ||
73 | port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; | |
74 | ||
75 | spin_lock_irqsave(&opl3->reg_lock, flags); | |
76 | ||
77 | outb((unsigned char) cmd, port); | |
78 | inb(opl3->l_port); | |
79 | inb(opl3->l_port); | |
80 | ||
81 | outb((unsigned char) val, port + 1); | |
82 | inb(opl3->l_port); | |
83 | inb(opl3->l_port); | |
84 | ||
85 | spin_unlock_irqrestore(&opl3->reg_lock, flags); | |
86 | } | |
87 | ||
88 | static int snd_opl3_detect(opl3_t * opl3) | |
89 | { | |
90 | /* | |
91 | * This function returns 1 if the FM chip is present at the given I/O port | |
92 | * The detection algorithm plays with the timer built in the FM chip and | |
93 | * looks for a change in the status register. | |
94 | * | |
95 | * Note! The timers of the FM chip are not connected to AdLib (and compatible) | |
96 | * boards. | |
97 | * | |
98 | * Note2! The chip is initialized if detected. | |
99 | */ | |
100 | ||
101 | unsigned char stat1, stat2, signature; | |
102 | ||
103 | /* Reset timers 1 and 2 */ | |
104 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); | |
105 | /* Reset the IRQ of the FM chip */ | |
106 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); | |
107 | signature = stat1 = inb(opl3->l_port); /* Status register */ | |
108 | if ((stat1 & 0xe0) != 0x00) { /* Should be 0x00 */ | |
109 | snd_printd("OPL3: stat1 = 0x%x\n", stat1); | |
110 | return -ENODEV; | |
111 | } | |
112 | /* Set timer1 to 0xff */ | |
113 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 0xff); | |
114 | /* Unmask and start timer 1 */ | |
115 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER2_MASK | OPL3_TIMER1_START); | |
116 | /* Now we have to delay at least 80us */ | |
117 | udelay(200); | |
118 | /* Read status after timers have expired */ | |
119 | stat2 = inb(opl3->l_port); | |
120 | /* Stop the timers */ | |
121 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); | |
122 | /* Reset the IRQ of the FM chip */ | |
123 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); | |
124 | if ((stat2 & 0xe0) != 0xc0) { /* There is no YM3812 */ | |
125 | snd_printd("OPL3: stat2 = 0x%x\n", stat2); | |
126 | return -ENODEV; | |
127 | } | |
128 | ||
129 | /* If the toplevel code knows exactly the type of chip, don't try | |
130 | to detect it. */ | |
131 | if (opl3->hardware != OPL3_HW_AUTO) | |
132 | return 0; | |
133 | ||
134 | /* There is a FM chip on this address. Detect the type (OPL2 to OPL4) */ | |
135 | if (signature == 0x06) { /* OPL2 */ | |
136 | opl3->hardware = OPL3_HW_OPL2; | |
137 | } else { | |
138 | /* | |
139 | * If we had an OPL4 chip, opl3->hardware would have been set | |
140 | * by the OPL4 driver; so we can assume OPL3 here. | |
141 | */ | |
142 | snd_assert(opl3->r_port != 0, return -ENODEV); | |
143 | opl3->hardware = OPL3_HW_OPL3; | |
144 | } | |
145 | return 0; | |
146 | } | |
147 | ||
148 | /* | |
149 | * AdLib timers | |
150 | */ | |
151 | ||
152 | /* | |
153 | * Timer 1 - 80us | |
154 | */ | |
155 | ||
156 | static int snd_opl3_timer1_start(snd_timer_t * timer) | |
157 | { | |
158 | unsigned long flags; | |
159 | unsigned char tmp; | |
160 | unsigned int ticks; | |
161 | opl3_t *opl3; | |
162 | ||
163 | opl3 = snd_timer_chip(timer); | |
164 | spin_lock_irqsave(&opl3->timer_lock, flags); | |
165 | ticks = timer->sticks; | |
166 | tmp = (opl3->timer_enable | OPL3_TIMER1_START) & ~OPL3_TIMER1_MASK; | |
167 | opl3->timer_enable = tmp; | |
168 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 256 - ticks); /* timer 1 count */ | |
169 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */ | |
170 | spin_unlock_irqrestore(&opl3->timer_lock, flags); | |
171 | return 0; | |
172 | } | |
173 | ||
174 | static int snd_opl3_timer1_stop(snd_timer_t * timer) | |
175 | { | |
176 | unsigned long flags; | |
177 | unsigned char tmp; | |
178 | opl3_t *opl3; | |
179 | ||
180 | opl3 = snd_timer_chip(timer); | |
181 | spin_lock_irqsave(&opl3->timer_lock, flags); | |
182 | tmp = (opl3->timer_enable | OPL3_TIMER1_MASK) & ~OPL3_TIMER1_START; | |
183 | opl3->timer_enable = tmp; | |
184 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */ | |
185 | spin_unlock_irqrestore(&opl3->timer_lock, flags); | |
186 | return 0; | |
187 | } | |
188 | ||
189 | /* | |
190 | * Timer 2 - 320us | |
191 | */ | |
192 | ||
193 | static int snd_opl3_timer2_start(snd_timer_t * timer) | |
194 | { | |
195 | unsigned long flags; | |
196 | unsigned char tmp; | |
197 | unsigned int ticks; | |
198 | opl3_t *opl3; | |
199 | ||
200 | opl3 = snd_timer_chip(timer); | |
201 | spin_lock_irqsave(&opl3->timer_lock, flags); | |
202 | ticks = timer->sticks; | |
203 | tmp = (opl3->timer_enable | OPL3_TIMER2_START) & ~OPL3_TIMER2_MASK; | |
204 | opl3->timer_enable = tmp; | |
205 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER2, 256 - ticks); /* timer 1 count */ | |
206 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */ | |
207 | spin_unlock_irqrestore(&opl3->timer_lock, flags); | |
208 | return 0; | |
209 | } | |
210 | ||
211 | static int snd_opl3_timer2_stop(snd_timer_t * timer) | |
212 | { | |
213 | unsigned long flags; | |
214 | unsigned char tmp; | |
215 | opl3_t *opl3; | |
216 | ||
217 | opl3 = snd_timer_chip(timer); | |
218 | spin_lock_irqsave(&opl3->timer_lock, flags); | |
219 | tmp = (opl3->timer_enable | OPL3_TIMER2_MASK) & ~OPL3_TIMER2_START; | |
220 | opl3->timer_enable = tmp; | |
221 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */ | |
222 | spin_unlock_irqrestore(&opl3->timer_lock, flags); | |
223 | return 0; | |
224 | } | |
225 | ||
226 | /* | |
227 | ||
228 | */ | |
229 | ||
230 | static struct _snd_timer_hardware snd_opl3_timer1 = | |
231 | { | |
232 | .flags = SNDRV_TIMER_HW_STOP, | |
233 | .resolution = 80000, | |
234 | .ticks = 256, | |
235 | .start = snd_opl3_timer1_start, | |
236 | .stop = snd_opl3_timer1_stop, | |
237 | }; | |
238 | ||
239 | static struct _snd_timer_hardware snd_opl3_timer2 = | |
240 | { | |
241 | .flags = SNDRV_TIMER_HW_STOP, | |
242 | .resolution = 320000, | |
243 | .ticks = 256, | |
244 | .start = snd_opl3_timer2_start, | |
245 | .stop = snd_opl3_timer2_stop, | |
246 | }; | |
247 | ||
248 | static int snd_opl3_timer1_init(opl3_t * opl3, int timer_no) | |
249 | { | |
250 | snd_timer_t *timer = NULL; | |
251 | snd_timer_id_t tid; | |
252 | int err; | |
253 | ||
254 | tid.dev_class = SNDRV_TIMER_CLASS_CARD; | |
255 | tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; | |
256 | tid.card = opl3->card->number; | |
257 | tid.device = timer_no; | |
258 | tid.subdevice = 0; | |
259 | if ((err = snd_timer_new(opl3->card, "AdLib timer #1", &tid, &timer)) >= 0) { | |
260 | strcpy(timer->name, "AdLib timer #1"); | |
261 | timer->private_data = opl3; | |
262 | timer->hw = snd_opl3_timer1; | |
263 | } | |
264 | opl3->timer1 = timer; | |
265 | return err; | |
266 | } | |
267 | ||
268 | static int snd_opl3_timer2_init(opl3_t * opl3, int timer_no) | |
269 | { | |
270 | snd_timer_t *timer = NULL; | |
271 | snd_timer_id_t tid; | |
272 | int err; | |
273 | ||
274 | tid.dev_class = SNDRV_TIMER_CLASS_CARD; | |
275 | tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; | |
276 | tid.card = opl3->card->number; | |
277 | tid.device = timer_no; | |
278 | tid.subdevice = 0; | |
279 | if ((err = snd_timer_new(opl3->card, "AdLib timer #2", &tid, &timer)) >= 0) { | |
280 | strcpy(timer->name, "AdLib timer #2"); | |
281 | timer->private_data = opl3; | |
282 | timer->hw = snd_opl3_timer2; | |
283 | } | |
284 | opl3->timer2 = timer; | |
285 | return err; | |
286 | } | |
287 | ||
288 | /* | |
289 | ||
290 | */ | |
291 | ||
292 | void snd_opl3_interrupt(snd_hwdep_t * hw) | |
293 | { | |
294 | unsigned char status; | |
295 | opl3_t *opl3; | |
296 | snd_timer_t *timer; | |
297 | ||
298 | if (hw == NULL) | |
299 | return; | |
300 | ||
301 | opl3 = hw->private_data; | |
302 | status = inb(opl3->l_port); | |
303 | #if 0 | |
304 | snd_printk("AdLib IRQ status = 0x%x\n", status); | |
305 | #endif | |
306 | if (!(status & 0x80)) | |
307 | return; | |
308 | ||
309 | if (status & 0x40) { | |
310 | timer = opl3->timer1; | |
311 | snd_timer_interrupt(timer, timer->sticks); | |
312 | } | |
313 | if (status & 0x20) { | |
314 | timer = opl3->timer2; | |
315 | snd_timer_interrupt(timer, timer->sticks); | |
316 | } | |
317 | } | |
318 | ||
319 | /* | |
320 | ||
321 | */ | |
322 | ||
323 | static int snd_opl3_free(opl3_t *opl3) | |
324 | { | |
325 | snd_assert(opl3 != NULL, return -ENXIO); | |
326 | if (opl3->private_free) | |
327 | opl3->private_free(opl3); | |
b1d5776d TI |
328 | release_and_free_resource(opl3->res_l_port); |
329 | release_and_free_resource(opl3->res_r_port); | |
1da177e4 LT |
330 | kfree(opl3); |
331 | return 0; | |
332 | } | |
333 | ||
334 | static int snd_opl3_dev_free(snd_device_t *device) | |
335 | { | |
336 | opl3_t *opl3 = device->device_data; | |
337 | return snd_opl3_free(opl3); | |
338 | } | |
339 | ||
340 | int snd_opl3_new(snd_card_t *card, | |
341 | unsigned short hardware, | |
342 | opl3_t **ropl3) | |
343 | { | |
344 | static snd_device_ops_t ops = { | |
345 | .dev_free = snd_opl3_dev_free, | |
346 | }; | |
347 | opl3_t *opl3; | |
348 | int err; | |
349 | ||
350 | *ropl3 = NULL; | |
561b220a | 351 | opl3 = kzalloc(sizeof(*opl3), GFP_KERNEL); |
1da177e4 LT |
352 | if (opl3 == NULL) |
353 | return -ENOMEM; | |
354 | ||
355 | opl3->card = card; | |
356 | opl3->hardware = hardware; | |
357 | spin_lock_init(&opl3->reg_lock); | |
358 | spin_lock_init(&opl3->timer_lock); | |
359 | init_MUTEX(&opl3->access_mutex); | |
360 | ||
361 | if ((err = snd_device_new(card, SNDRV_DEV_CODEC, opl3, &ops)) < 0) { | |
362 | snd_opl3_free(opl3); | |
363 | return err; | |
364 | } | |
365 | ||
366 | *ropl3 = opl3; | |
367 | return 0; | |
368 | } | |
369 | ||
370 | int snd_opl3_init(opl3_t *opl3) | |
371 | { | |
372 | if (! opl3->command) { | |
373 | printk(KERN_ERR "snd_opl3_init: command not defined!\n"); | |
374 | return -EINVAL; | |
375 | } | |
376 | ||
377 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT); | |
378 | /* Melodic mode */ | |
379 | opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00); | |
380 | ||
381 | switch (opl3->hardware & OPL3_HW_MASK) { | |
382 | case OPL3_HW_OPL2: | |
383 | opl3->max_voices = MAX_OPL2_VOICES; | |
384 | break; | |
385 | case OPL3_HW_OPL3: | |
386 | case OPL3_HW_OPL4: | |
387 | opl3->max_voices = MAX_OPL3_VOICES; | |
388 | /* Enter OPL3 mode */ | |
389 | opl3->command(opl3, OPL3_RIGHT | OPL3_REG_MODE, OPL3_OPL3_ENABLE); | |
390 | } | |
391 | return 0; | |
392 | } | |
393 | ||
394 | int snd_opl3_create(snd_card_t * card, | |
395 | unsigned long l_port, | |
396 | unsigned long r_port, | |
397 | unsigned short hardware, | |
398 | int integrated, | |
399 | opl3_t ** ropl3) | |
400 | { | |
401 | opl3_t *opl3; | |
402 | int err; | |
403 | ||
404 | *ropl3 = NULL; | |
405 | if ((err = snd_opl3_new(card, hardware, &opl3)) < 0) | |
406 | return err; | |
407 | if (! integrated) { | |
408 | if ((opl3->res_l_port = request_region(l_port, 2, "OPL2/3 (left)")) == NULL) { | |
409 | snd_printk(KERN_ERR "opl3: can't grab left port 0x%lx\n", l_port); | |
410 | snd_opl3_free(opl3); | |
411 | return -EBUSY; | |
412 | } | |
413 | if (r_port != 0 && | |
414 | (opl3->res_r_port = request_region(r_port, 2, "OPL2/3 (right)")) == NULL) { | |
415 | snd_printk(KERN_ERR "opl3: can't grab right port 0x%lx\n", r_port); | |
416 | snd_opl3_free(opl3); | |
417 | return -EBUSY; | |
418 | } | |
419 | } | |
420 | opl3->l_port = l_port; | |
421 | opl3->r_port = r_port; | |
422 | ||
423 | switch (opl3->hardware) { | |
424 | /* some hardware doesn't support timers */ | |
425 | case OPL3_HW_OPL3_SV: | |
426 | case OPL3_HW_OPL3_CS: | |
427 | case OPL3_HW_OPL3_FM801: | |
428 | opl3->command = &snd_opl3_command; | |
429 | break; | |
430 | default: | |
431 | opl3->command = &snd_opl2_command; | |
432 | if ((err = snd_opl3_detect(opl3)) < 0) { | |
433 | snd_printd("OPL2/3 chip not detected at 0x%lx/0x%lx\n", | |
434 | opl3->l_port, opl3->r_port); | |
435 | snd_opl3_free(opl3); | |
436 | return err; | |
437 | } | |
438 | /* detect routine returns correct hardware type */ | |
439 | switch (opl3->hardware & OPL3_HW_MASK) { | |
440 | case OPL3_HW_OPL3: | |
441 | case OPL3_HW_OPL4: | |
442 | opl3->command = &snd_opl3_command; | |
443 | } | |
444 | } | |
445 | ||
446 | snd_opl3_init(opl3); | |
447 | ||
448 | *ropl3 = opl3; | |
449 | return 0; | |
450 | } | |
451 | ||
452 | int snd_opl3_timer_new(opl3_t * opl3, int timer1_dev, int timer2_dev) | |
453 | { | |
454 | int err; | |
455 | ||
456 | if (timer1_dev >= 0) | |
457 | if ((err = snd_opl3_timer1_init(opl3, timer1_dev)) < 0) | |
458 | return err; | |
459 | if (timer2_dev >= 0) { | |
460 | if ((err = snd_opl3_timer2_init(opl3, timer2_dev)) < 0) { | |
461 | snd_device_free(opl3->card, opl3->timer1); | |
462 | opl3->timer1 = NULL; | |
463 | return err; | |
464 | } | |
465 | } | |
466 | return 0; | |
467 | } | |
468 | ||
469 | int snd_opl3_hwdep_new(opl3_t * opl3, | |
470 | int device, int seq_device, | |
471 | snd_hwdep_t ** rhwdep) | |
472 | { | |
473 | snd_hwdep_t *hw; | |
474 | snd_card_t *card = opl3->card; | |
475 | int err; | |
476 | ||
477 | if (rhwdep) | |
478 | *rhwdep = NULL; | |
479 | ||
480 | /* create hardware dependent device (direct FM) */ | |
481 | ||
482 | if ((err = snd_hwdep_new(card, "OPL2/OPL3", device, &hw)) < 0) { | |
483 | snd_device_free(card, opl3); | |
484 | return err; | |
485 | } | |
486 | hw->private_data = opl3; | |
487 | #ifdef CONFIG_SND_OSSEMUL | |
488 | if (device == 0) { | |
489 | hw->oss_type = SNDRV_OSS_DEVICE_TYPE_DMFM; | |
490 | sprintf(hw->oss_dev, "dmfm%i", card->number); | |
491 | } | |
492 | #endif | |
493 | strcpy(hw->name, hw->id); | |
494 | switch (opl3->hardware & OPL3_HW_MASK) { | |
495 | case OPL3_HW_OPL2: | |
496 | strcpy(hw->name, "OPL2 FM"); | |
497 | hw->iface = SNDRV_HWDEP_IFACE_OPL2; | |
498 | break; | |
499 | case OPL3_HW_OPL3: | |
500 | strcpy(hw->name, "OPL3 FM"); | |
501 | hw->iface = SNDRV_HWDEP_IFACE_OPL3; | |
502 | break; | |
503 | case OPL3_HW_OPL4: | |
504 | strcpy(hw->name, "OPL4 FM"); | |
505 | hw->iface = SNDRV_HWDEP_IFACE_OPL4; | |
506 | break; | |
507 | } | |
508 | ||
509 | /* operators - only ioctl */ | |
510 | hw->ops.open = snd_opl3_open; | |
511 | hw->ops.ioctl = snd_opl3_ioctl; | |
512 | hw->ops.release = snd_opl3_release; | |
513 | ||
514 | opl3->seq_dev_num = seq_device; | |
515 | #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE)) | |
516 | if (snd_seq_device_new(card, seq_device, SNDRV_SEQ_DEV_ID_OPL3, | |
517 | sizeof(opl3_t*), &opl3->seq_dev) >= 0) { | |
518 | strcpy(opl3->seq_dev->name, hw->name); | |
519 | *(opl3_t**)SNDRV_SEQ_DEVICE_ARGPTR(opl3->seq_dev) = opl3; | |
520 | } | |
521 | #endif | |
522 | if (rhwdep) | |
523 | *rhwdep = hw; | |
524 | return 0; | |
525 | } | |
526 | ||
527 | EXPORT_SYMBOL(snd_opl3_interrupt); | |
528 | EXPORT_SYMBOL(snd_opl3_new); | |
529 | EXPORT_SYMBOL(snd_opl3_init); | |
530 | EXPORT_SYMBOL(snd_opl3_create); | |
531 | EXPORT_SYMBOL(snd_opl3_timer_new); | |
532 | EXPORT_SYMBOL(snd_opl3_hwdep_new); | |
533 | ||
534 | /* opl3_synth.c */ | |
535 | EXPORT_SYMBOL(snd_opl3_regmap); | |
536 | EXPORT_SYMBOL(snd_opl3_reset); | |
537 | ||
538 | /* | |
539 | * INIT part | |
540 | */ | |
541 | ||
542 | static int __init alsa_opl3_init(void) | |
543 | { | |
544 | return 0; | |
545 | } | |
546 | ||
547 | static void __exit alsa_opl3_exit(void) | |
548 | { | |
549 | } | |
550 | ||
551 | module_init(alsa_opl3_init) | |
552 | module_exit(alsa_opl3_exit) |