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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/sound/oss/dmasound/dmasound_q40.c | |
3 | * | |
4 | * Q40 DMA Sound Driver | |
5 | * | |
6 | * See linux/sound/oss/dmasound/dmasound_core.c for copyright and credits | |
7 | * prior to 28/01/2001 | |
8 | * | |
9 | * 28/01/2001 [0.1] Iain Sandoe | |
10 | * - added versioning | |
11 | * - put in and populated the hardware_afmts field. | |
12 | * [0.2] - put in SNDCTL_DSP_GETCAPS value. | |
13 | * [0.3] - put in default hard/soft settings. | |
14 | */ | |
15 | ||
16 | ||
17 | #include <linux/module.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/soundcard.h> | |
21 | #include <linux/interrupt.h> | |
22 | ||
23 | #include <asm/uaccess.h> | |
24 | #include <asm/q40ints.h> | |
25 | #include <asm/q40_master.h> | |
26 | ||
27 | #include "dmasound.h" | |
28 | ||
29 | #define DMASOUND_Q40_REVISION 0 | |
30 | #define DMASOUND_Q40_EDITION 3 | |
31 | ||
32 | static int expand_bal; /* Balance factor for expanding (not volume!) */ | |
33 | static int expand_data; /* Data for expanding */ | |
34 | ||
35 | ||
36 | /*** Low level stuff *********************************************************/ | |
37 | ||
38 | ||
39 | static void *Q40Alloc(unsigned int size, int flags); | |
40 | static void Q40Free(void *, unsigned int); | |
41 | static int Q40IrqInit(void); | |
42 | #ifdef MODULE | |
43 | static void Q40IrqCleanUp(void); | |
44 | #endif | |
45 | static void Q40Silence(void); | |
46 | static void Q40Init(void); | |
47 | static int Q40SetFormat(int format); | |
48 | static int Q40SetVolume(int volume); | |
49 | static void Q40PlayNextFrame(int index); | |
50 | static void Q40Play(void); | |
51 | static irqreturn_t Q40StereoInterrupt(int irq, void *dummy, struct pt_regs *fp); | |
52 | static irqreturn_t Q40MonoInterrupt(int irq, void *dummy, struct pt_regs *fp); | |
53 | static void Q40Interrupt(void); | |
54 | ||
55 | ||
56 | /*** Mid level stuff *********************************************************/ | |
57 | ||
58 | ||
59 | ||
60 | /* userCount, frameUsed, frameLeft == byte counts */ | |
61 | static ssize_t q40_ct_law(const u_char *userPtr, size_t userCount, | |
62 | u_char frame[], ssize_t *frameUsed, | |
63 | ssize_t frameLeft) | |
64 | { | |
65 | char *table = dmasound.soft.format == AFMT_MU_LAW ? dmasound_ulaw2dma8: dmasound_alaw2dma8; | |
66 | ssize_t count, used; | |
67 | u_char *p = (u_char *) &frame[*frameUsed]; | |
68 | ||
69 | used = count = min_t(size_t, userCount, frameLeft); | |
70 | if (copy_from_user(p,userPtr,count)) | |
71 | return -EFAULT; | |
72 | while (count > 0) { | |
73 | *p = table[*p]+128; | |
74 | p++; | |
75 | count--; | |
76 | } | |
77 | *frameUsed += used ; | |
78 | return used; | |
79 | } | |
80 | ||
81 | ||
82 | static ssize_t q40_ct_s8(const u_char *userPtr, size_t userCount, | |
83 | u_char frame[], ssize_t *frameUsed, | |
84 | ssize_t frameLeft) | |
85 | { | |
86 | ssize_t count, used; | |
87 | u_char *p = (u_char *) &frame[*frameUsed]; | |
88 | ||
89 | used = count = min_t(size_t, userCount, frameLeft); | |
90 | if (copy_from_user(p,userPtr,count)) | |
91 | return -EFAULT; | |
92 | while (count > 0) { | |
93 | *p = *p + 128; | |
94 | p++; | |
95 | count--; | |
96 | } | |
97 | *frameUsed += used; | |
98 | return used; | |
99 | } | |
100 | ||
101 | static ssize_t q40_ct_u8(const u_char *userPtr, size_t userCount, | |
102 | u_char frame[], ssize_t *frameUsed, | |
103 | ssize_t frameLeft) | |
104 | { | |
105 | ssize_t count, used; | |
106 | u_char *p = (u_char *) &frame[*frameUsed]; | |
107 | ||
108 | used = count = min_t(size_t, userCount, frameLeft); | |
109 | if (copy_from_user(p,userPtr,count)) | |
110 | return -EFAULT; | |
111 | *frameUsed += used; | |
112 | return used; | |
113 | } | |
114 | ||
115 | ||
116 | /* a bit too complicated to optimise right now ..*/ | |
117 | static ssize_t q40_ctx_law(const u_char *userPtr, size_t userCount, | |
118 | u_char frame[], ssize_t *frameUsed, | |
119 | ssize_t frameLeft) | |
120 | { | |
121 | unsigned char *table = (unsigned char *) | |
122 | (dmasound.soft.format == AFMT_MU_LAW ? dmasound_ulaw2dma8: dmasound_alaw2dma8); | |
123 | unsigned int data = expand_data; | |
124 | u_char *p = (u_char *) &frame[*frameUsed]; | |
125 | int bal = expand_bal; | |
126 | int hSpeed = dmasound.hard.speed, sSpeed = dmasound.soft.speed; | |
127 | int utotal, ftotal; | |
128 | ||
129 | ftotal = frameLeft; | |
130 | utotal = userCount; | |
131 | while (frameLeft) { | |
132 | u_char c; | |
133 | if (bal < 0) { | |
134 | if (userCount == 0) | |
135 | break; | |
136 | if (get_user(c, userPtr++)) | |
137 | return -EFAULT; | |
138 | data = table[c]; | |
139 | data += 0x80; | |
140 | userCount--; | |
141 | bal += hSpeed; | |
142 | } | |
143 | *p++ = data; | |
144 | frameLeft--; | |
145 | bal -= sSpeed; | |
146 | } | |
147 | expand_bal = bal; | |
148 | expand_data = data; | |
149 | *frameUsed += (ftotal - frameLeft); | |
150 | utotal -= userCount; | |
151 | return utotal; | |
152 | } | |
153 | ||
154 | ||
155 | static ssize_t q40_ctx_s8(const u_char *userPtr, size_t userCount, | |
156 | u_char frame[], ssize_t *frameUsed, | |
157 | ssize_t frameLeft) | |
158 | { | |
159 | u_char *p = (u_char *) &frame[*frameUsed]; | |
160 | unsigned int data = expand_data; | |
161 | int bal = expand_bal; | |
162 | int hSpeed = dmasound.hard.speed, sSpeed = dmasound.soft.speed; | |
163 | int utotal, ftotal; | |
164 | ||
165 | ||
166 | ftotal = frameLeft; | |
167 | utotal = userCount; | |
168 | while (frameLeft) { | |
169 | u_char c; | |
170 | if (bal < 0) { | |
171 | if (userCount == 0) | |
172 | break; | |
173 | if (get_user(c, userPtr++)) | |
174 | return -EFAULT; | |
175 | data = c ; | |
176 | data += 0x80; | |
177 | userCount--; | |
178 | bal += hSpeed; | |
179 | } | |
180 | *p++ = data; | |
181 | frameLeft--; | |
182 | bal -= sSpeed; | |
183 | } | |
184 | expand_bal = bal; | |
185 | expand_data = data; | |
186 | *frameUsed += (ftotal - frameLeft); | |
187 | utotal -= userCount; | |
188 | return utotal; | |
189 | } | |
190 | ||
191 | ||
192 | static ssize_t q40_ctx_u8(const u_char *userPtr, size_t userCount, | |
193 | u_char frame[], ssize_t *frameUsed, | |
194 | ssize_t frameLeft) | |
195 | { | |
196 | u_char *p = (u_char *) &frame[*frameUsed]; | |
197 | unsigned int data = expand_data; | |
198 | int bal = expand_bal; | |
199 | int hSpeed = dmasound.hard.speed, sSpeed = dmasound.soft.speed; | |
200 | int utotal, ftotal; | |
201 | ||
202 | ftotal = frameLeft; | |
203 | utotal = userCount; | |
204 | while (frameLeft) { | |
205 | u_char c; | |
206 | if (bal < 0) { | |
207 | if (userCount == 0) | |
208 | break; | |
209 | if (get_user(c, userPtr++)) | |
210 | return -EFAULT; | |
211 | data = c ; | |
212 | userCount--; | |
213 | bal += hSpeed; | |
214 | } | |
215 | *p++ = data; | |
216 | frameLeft--; | |
217 | bal -= sSpeed; | |
218 | } | |
219 | expand_bal = bal; | |
220 | expand_data = data; | |
221 | *frameUsed += (ftotal - frameLeft) ; | |
222 | utotal -= userCount; | |
223 | return utotal; | |
224 | } | |
225 | ||
226 | /* compressing versions */ | |
227 | static ssize_t q40_ctc_law(const u_char *userPtr, size_t userCount, | |
228 | u_char frame[], ssize_t *frameUsed, | |
229 | ssize_t frameLeft) | |
230 | { | |
231 | unsigned char *table = (unsigned char *) | |
232 | (dmasound.soft.format == AFMT_MU_LAW ? dmasound_ulaw2dma8: dmasound_alaw2dma8); | |
233 | unsigned int data = expand_data; | |
234 | u_char *p = (u_char *) &frame[*frameUsed]; | |
235 | int bal = expand_bal; | |
236 | int hSpeed = dmasound.hard.speed, sSpeed = dmasound.soft.speed; | |
237 | int utotal, ftotal; | |
238 | ||
239 | ftotal = frameLeft; | |
240 | utotal = userCount; | |
241 | while (frameLeft) { | |
242 | u_char c; | |
243 | while(bal<0) { | |
244 | if (userCount == 0) | |
245 | goto lout; | |
246 | if (!(bal<(-hSpeed))) { | |
247 | if (get_user(c, userPtr)) | |
248 | return -EFAULT; | |
249 | data = 0x80 + table[c]; | |
250 | } | |
251 | userPtr++; | |
252 | userCount--; | |
253 | bal += hSpeed; | |
254 | } | |
255 | *p++ = data; | |
256 | frameLeft--; | |
257 | bal -= sSpeed; | |
258 | } | |
259 | lout: | |
260 | expand_bal = bal; | |
261 | expand_data = data; | |
262 | *frameUsed += (ftotal - frameLeft); | |
263 | utotal -= userCount; | |
264 | return utotal; | |
265 | } | |
266 | ||
267 | ||
268 | static ssize_t q40_ctc_s8(const u_char *userPtr, size_t userCount, | |
269 | u_char frame[], ssize_t *frameUsed, | |
270 | ssize_t frameLeft) | |
271 | { | |
272 | u_char *p = (u_char *) &frame[*frameUsed]; | |
273 | unsigned int data = expand_data; | |
274 | int bal = expand_bal; | |
275 | int hSpeed = dmasound.hard.speed, sSpeed = dmasound.soft.speed; | |
276 | int utotal, ftotal; | |
277 | ||
278 | ftotal = frameLeft; | |
279 | utotal = userCount; | |
280 | while (frameLeft) { | |
281 | u_char c; | |
282 | while (bal < 0) { | |
283 | if (userCount == 0) | |
284 | goto lout; | |
285 | if (!(bal<(-hSpeed))) { | |
286 | if (get_user(c, userPtr)) | |
287 | return -EFAULT; | |
288 | data = c + 0x80; | |
289 | } | |
290 | userPtr++; | |
291 | userCount--; | |
292 | bal += hSpeed; | |
293 | } | |
294 | *p++ = data; | |
295 | frameLeft--; | |
296 | bal -= sSpeed; | |
297 | } | |
298 | lout: | |
299 | expand_bal = bal; | |
300 | expand_data = data; | |
301 | *frameUsed += (ftotal - frameLeft); | |
302 | utotal -= userCount; | |
303 | return utotal; | |
304 | } | |
305 | ||
306 | ||
307 | static ssize_t q40_ctc_u8(const u_char *userPtr, size_t userCount, | |
308 | u_char frame[], ssize_t *frameUsed, | |
309 | ssize_t frameLeft) | |
310 | { | |
311 | u_char *p = (u_char *) &frame[*frameUsed]; | |
312 | unsigned int data = expand_data; | |
313 | int bal = expand_bal; | |
314 | int hSpeed = dmasound.hard.speed, sSpeed = dmasound.soft.speed; | |
315 | int utotal, ftotal; | |
316 | ||
317 | ftotal = frameLeft; | |
318 | utotal = userCount; | |
319 | while (frameLeft) { | |
320 | u_char c; | |
321 | while (bal < 0) { | |
322 | if (userCount == 0) | |
323 | goto lout; | |
324 | if (!(bal<(-hSpeed))) { | |
325 | if (get_user(c, userPtr)) | |
326 | return -EFAULT; | |
327 | data = c ; | |
328 | } | |
329 | userPtr++; | |
330 | userCount--; | |
331 | bal += hSpeed; | |
332 | } | |
333 | *p++ = data; | |
334 | frameLeft--; | |
335 | bal -= sSpeed; | |
336 | } | |
337 | lout: | |
338 | expand_bal = bal; | |
339 | expand_data = data; | |
340 | *frameUsed += (ftotal - frameLeft) ; | |
341 | utotal -= userCount; | |
342 | return utotal; | |
343 | } | |
344 | ||
345 | ||
346 | static TRANS transQ40Normal = { | |
347 | q40_ct_law, q40_ct_law, q40_ct_s8, q40_ct_u8, NULL, NULL, NULL, NULL | |
348 | }; | |
349 | ||
350 | static TRANS transQ40Expanding = { | |
351 | q40_ctx_law, q40_ctx_law, q40_ctx_s8, q40_ctx_u8, NULL, NULL, NULL, NULL | |
352 | }; | |
353 | ||
354 | static TRANS transQ40Compressing = { | |
355 | q40_ctc_law, q40_ctc_law, q40_ctc_s8, q40_ctc_u8, NULL, NULL, NULL, NULL | |
356 | }; | |
357 | ||
358 | ||
359 | /*** Low level stuff *********************************************************/ | |
360 | ||
361 | static void *Q40Alloc(unsigned int size, int flags) | |
362 | { | |
363 | return kmalloc(size, flags); /* change to vmalloc */ | |
364 | } | |
365 | ||
366 | static void Q40Free(void *ptr, unsigned int size) | |
367 | { | |
368 | kfree(ptr); | |
369 | } | |
370 | ||
371 | static int __init Q40IrqInit(void) | |
372 | { | |
373 | /* Register interrupt handler. */ | |
374 | request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0, | |
375 | "DMA sound", Q40Interrupt); | |
376 | ||
377 | return(1); | |
378 | } | |
379 | ||
380 | ||
381 | #ifdef MODULE | |
382 | static void Q40IrqCleanUp(void) | |
383 | { | |
384 | master_outb(0,SAMPLE_ENABLE_REG); | |
385 | free_irq(Q40_IRQ_SAMPLE, Q40Interrupt); | |
386 | } | |
387 | #endif /* MODULE */ | |
388 | ||
389 | ||
390 | static void Q40Silence(void) | |
391 | { | |
392 | master_outb(0,SAMPLE_ENABLE_REG); | |
393 | *DAC_LEFT=*DAC_RIGHT=127; | |
394 | } | |
395 | ||
396 | static char *q40_pp; | |
397 | static unsigned int q40_sc; | |
398 | ||
399 | static void Q40PlayNextFrame(int index) | |
400 | { | |
401 | u_char *start; | |
402 | u_long size; | |
403 | u_char speed; | |
404 | ||
405 | /* used by Q40Play() if all doubts whether there really is something | |
406 | * to be played are already wiped out. | |
407 | */ | |
408 | start = write_sq.buffers[write_sq.front]; | |
409 | size = (write_sq.count == index ? write_sq.rear_size : write_sq.block_size); | |
410 | ||
411 | q40_pp=start; | |
412 | q40_sc=size; | |
413 | ||
414 | write_sq.front = (write_sq.front+1) % write_sq.max_count; | |
415 | write_sq.active++; | |
416 | ||
417 | speed=(dmasound.hard.speed==10000 ? 0 : 1); | |
418 | ||
419 | master_outb( 0,SAMPLE_ENABLE_REG); | |
420 | free_irq(Q40_IRQ_SAMPLE, Q40Interrupt); | |
421 | if (dmasound.soft.stereo) | |
422 | request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0, | |
423 | "Q40 sound", Q40Interrupt); | |
424 | else | |
425 | request_irq(Q40_IRQ_SAMPLE, Q40MonoInterrupt, 0, | |
426 | "Q40 sound", Q40Interrupt); | |
427 | ||
428 | master_outb( speed, SAMPLE_RATE_REG); | |
429 | master_outb( 1,SAMPLE_CLEAR_REG); | |
430 | master_outb( 1,SAMPLE_ENABLE_REG); | |
431 | } | |
432 | ||
433 | static void Q40Play(void) | |
434 | { | |
435 | unsigned long flags; | |
436 | ||
437 | if (write_sq.active || write_sq.count<=0 ) { | |
438 | /* There's already a frame loaded */ | |
439 | return; | |
440 | } | |
441 | ||
442 | /* nothing in the queue */ | |
443 | if (write_sq.count <= 1 && write_sq.rear_size < write_sq.block_size && !write_sq.syncing) { | |
444 | /* hmmm, the only existing frame is not | |
445 | * yet filled and we're not syncing? | |
446 | */ | |
447 | return; | |
448 | } | |
449 | spin_lock_irqsave(&dmasound.lock, flags); | |
450 | Q40PlayNextFrame(1); | |
451 | spin_unlock_irqrestore(&dmasound.lock, flags); | |
452 | } | |
453 | ||
454 | static irqreturn_t Q40StereoInterrupt(int irq, void *dummy, struct pt_regs *fp) | |
455 | { | |
456 | spin_lock(&dmasound.lock); | |
457 | if (q40_sc>1){ | |
458 | *DAC_LEFT=*q40_pp++; | |
459 | *DAC_RIGHT=*q40_pp++; | |
460 | q40_sc -=2; | |
461 | master_outb(1,SAMPLE_CLEAR_REG); | |
462 | }else Q40Interrupt(); | |
463 | spin_unlock(&dmasound.lock); | |
464 | return IRQ_HANDLED; | |
465 | } | |
466 | static irqreturn_t Q40MonoInterrupt(int irq, void *dummy, struct pt_regs *fp) | |
467 | { | |
468 | spin_lock(&dmasound.lock); | |
469 | if (q40_sc>0){ | |
470 | *DAC_LEFT=*q40_pp; | |
471 | *DAC_RIGHT=*q40_pp++; | |
472 | q40_sc --; | |
473 | master_outb(1,SAMPLE_CLEAR_REG); | |
474 | }else Q40Interrupt(); | |
475 | spin_unlock(&dmasound.lock); | |
476 | return IRQ_HANDLED; | |
477 | } | |
478 | static void Q40Interrupt(void) | |
479 | { | |
480 | if (!write_sq.active) { | |
481 | /* playing was interrupted and sq_reset() has already cleared | |
482 | * the sq variables, so better don't do anything here. | |
483 | */ | |
484 | WAKE_UP(write_sq.sync_queue); | |
485 | master_outb(0,SAMPLE_ENABLE_REG); /* better safe */ | |
486 | goto exit; | |
487 | } else write_sq.active=0; | |
488 | write_sq.count--; | |
489 | Q40Play(); | |
490 | ||
491 | if (q40_sc<2) | |
492 | { /* there was nothing to play, disable irq */ | |
493 | master_outb(0,SAMPLE_ENABLE_REG); | |
494 | *DAC_LEFT=*DAC_RIGHT=127; | |
495 | } | |
496 | WAKE_UP(write_sq.action_queue); | |
497 | ||
498 | exit: | |
499 | master_outb(1,SAMPLE_CLEAR_REG); | |
500 | } | |
501 | ||
502 | ||
503 | static void Q40Init(void) | |
504 | { | |
505 | int i, idx; | |
506 | const int freq[] = {10000, 20000}; | |
507 | ||
508 | /* search a frequency that fits into the allowed error range */ | |
509 | ||
510 | idx = -1; | |
511 | for (i = 0; i < 2; i++) | |
512 | if ((100 * abs(dmasound.soft.speed - freq[i]) / freq[i]) <= catchRadius) | |
513 | idx = i; | |
514 | ||
515 | dmasound.hard = dmasound.soft; | |
516 | /*sound.hard.stereo=1;*/ /* no longer true */ | |
517 | dmasound.hard.size=8; | |
518 | ||
519 | if (idx > -1) { | |
520 | dmasound.soft.speed = freq[idx]; | |
521 | dmasound.trans_write = &transQ40Normal; | |
522 | } else | |
523 | dmasound.trans_write = &transQ40Expanding; | |
524 | ||
525 | Q40Silence(); | |
526 | ||
527 | if (dmasound.hard.speed > 20200) { | |
528 | /* squeeze the sound, we do that */ | |
529 | dmasound.hard.speed = 20000; | |
530 | dmasound.trans_write = &transQ40Compressing; | |
531 | } else if (dmasound.hard.speed > 10000) { | |
532 | dmasound.hard.speed = 20000; | |
533 | } else { | |
534 | dmasound.hard.speed = 10000; | |
535 | } | |
536 | expand_bal = -dmasound.soft.speed; | |
537 | } | |
538 | ||
539 | ||
540 | static int Q40SetFormat(int format) | |
541 | { | |
542 | /* Q40 sound supports only 8bit modes */ | |
543 | ||
544 | switch (format) { | |
545 | case AFMT_QUERY: | |
546 | return(dmasound.soft.format); | |
547 | case AFMT_MU_LAW: | |
548 | case AFMT_A_LAW: | |
549 | case AFMT_S8: | |
550 | case AFMT_U8: | |
551 | break; | |
552 | default: | |
553 | format = AFMT_S8; | |
554 | } | |
555 | ||
556 | dmasound.soft.format = format; | |
557 | dmasound.soft.size = 8; | |
558 | if (dmasound.minDev == SND_DEV_DSP) { | |
559 | dmasound.dsp.format = format; | |
560 | dmasound.dsp.size = 8; | |
561 | } | |
562 | Q40Init(); | |
563 | ||
564 | return(format); | |
565 | } | |
566 | ||
567 | static int Q40SetVolume(int volume) | |
568 | { | |
569 | return 0; | |
570 | } | |
571 | ||
572 | ||
573 | /*** Machine definitions *****************************************************/ | |
574 | ||
575 | static SETTINGS def_hard = { | |
576 | .format = AFMT_U8, | |
577 | .stereo = 0, | |
578 | .size = 8, | |
579 | .speed = 10000 | |
580 | } ; | |
581 | ||
582 | static SETTINGS def_soft = { | |
583 | .format = AFMT_U8, | |
584 | .stereo = 0, | |
585 | .size = 8, | |
586 | .speed = 8000 | |
587 | } ; | |
588 | ||
589 | static MACHINE machQ40 = { | |
590 | .name = "Q40", | |
591 | .name2 = "Q40", | |
592 | .owner = THIS_MODULE, | |
593 | .dma_alloc = Q40Alloc, | |
594 | .dma_free = Q40Free, | |
595 | .irqinit = Q40IrqInit, | |
596 | #ifdef MODULE | |
597 | .irqcleanup = Q40IrqCleanUp, | |
598 | #endif /* MODULE */ | |
599 | .init = Q40Init, | |
600 | .silence = Q40Silence, | |
601 | .setFormat = Q40SetFormat, | |
602 | .setVolume = Q40SetVolume, | |
603 | .play = Q40Play, | |
604 | .min_dsp_speed = 10000, | |
605 | .version = ((DMASOUND_Q40_REVISION<<8) | DMASOUND_Q40_EDITION), | |
606 | .hardware_afmts = AFMT_U8, /* h'ware-supported formats *only* here */ | |
607 | .capabilities = DSP_CAP_BATCH /* As per SNDCTL_DSP_GETCAPS */ | |
608 | }; | |
609 | ||
610 | ||
611 | /*** Config & Setup **********************************************************/ | |
612 | ||
613 | ||
614 | int __init dmasound_q40_init(void) | |
615 | { | |
616 | if (MACH_IS_Q40) { | |
617 | dmasound.mach = machQ40; | |
618 | dmasound.mach.default_hard = def_hard ; | |
619 | dmasound.mach.default_soft = def_soft ; | |
620 | return dmasound_init(); | |
621 | } else | |
622 | return -ENODEV; | |
623 | } | |
624 | ||
625 | static void __exit dmasound_q40_cleanup(void) | |
626 | { | |
627 | dmasound_deinit(); | |
628 | } | |
629 | ||
630 | module_init(dmasound_q40_init); | |
631 | module_exit(dmasound_q40_cleanup); | |
632 | ||
633 | MODULE_DESCRIPTION("Q40/Q60 sound driver"); | |
634 | MODULE_LICENSE("GPL"); |