Version:  2.0.40 2.2.26 2.4.37 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1

Linux/sound/isa/msnd/msnd_pinnacle.c

  1 /*********************************************************************
  2  *
  3  * Linux multisound pinnacle/fiji driver for ALSA.
  4  *
  5  * 2002/06/30 Karsten Wiese:
  6  *      for now this is only used to build a pinnacle / fiji driver.
  7  *      the OSS parent of this code is designed to also support
  8  *      the multisound classic via the file msnd_classic.c.
  9  *      to make it easier for some brave heart to implemt classic
 10  *      support in alsa, i left all the MSND_CLASSIC tokens in this file.
 11  *      but for now this untested & undone.
 12  *
 13  *
 14  * ripped from linux kernel 2.4.18 by Karsten Wiese.
 15  *
 16  * the following is a copy of the 2.4.18 OSS FREE file-heading comment:
 17  *
 18  * Turtle Beach MultiSound Sound Card Driver for Linux
 19  * msnd_pinnacle.c / msnd_classic.c
 20  *
 21  * -- If MSND_CLASSIC is defined:
 22  *
 23  *     -> driver for Turtle Beach Classic/Monterey/Tahiti
 24  *
 25  * -- Else
 26  *
 27  *     -> driver for Turtle Beach Pinnacle/Fiji
 28  *
 29  * 12-3-2000  Modified IO port validation  Steve Sycamore
 30  *
 31  * Copyright (C) 1998 Andrew Veliath
 32  *
 33  * This program is free software; you can redistribute it and/or modify
 34  * it under the terms of the GNU General Public License as published by
 35  * the Free Software Foundation; either version 2 of the License, or
 36  * (at your option) any later version.
 37  *
 38  * This program is distributed in the hope that it will be useful,
 39  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 40  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 41  * GNU General Public License for more details.
 42  *
 43  * You should have received a copy of the GNU General Public License
 44  * along with this program; if not, write to the Free Software
 45  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 46  *
 47  ********************************************************************/
 48 
 49 #include <linux/kernel.h>
 50 #include <linux/module.h>
 51 #include <linux/interrupt.h>
 52 #include <linux/types.h>
 53 #include <linux/delay.h>
 54 #include <linux/ioport.h>
 55 #include <linux/firmware.h>
 56 #include <linux/isa.h>
 57 #include <linux/isapnp.h>
 58 #include <linux/irq.h>
 59 #include <linux/io.h>
 60 
 61 #include <sound/core.h>
 62 #include <sound/initval.h>
 63 #include <sound/asound.h>
 64 #include <sound/pcm.h>
 65 #include <sound/mpu401.h>
 66 
 67 #ifdef MSND_CLASSIC
 68 # ifndef __alpha__
 69 #  define SLOWIO
 70 # endif
 71 #endif
 72 #include "msnd.h"
 73 #ifdef MSND_CLASSIC
 74 #  include "msnd_classic.h"
 75 #  define LOGNAME                       "msnd_classic"
 76 #  define DEV_NAME                      "msnd-classic"
 77 #else
 78 #  include "msnd_pinnacle.h"
 79 #  define LOGNAME                       "snd_msnd_pinnacle"
 80 #  define DEV_NAME                      "msnd-pinnacle"
 81 #endif
 82 
 83 static void set_default_audio_parameters(struct snd_msnd *chip)
 84 {
 85         chip->play_sample_size = DEFSAMPLESIZE;
 86         chip->play_sample_rate = DEFSAMPLERATE;
 87         chip->play_channels = DEFCHANNELS;
 88         chip->capture_sample_size = DEFSAMPLESIZE;
 89         chip->capture_sample_rate = DEFSAMPLERATE;
 90         chip->capture_channels = DEFCHANNELS;
 91 }
 92 
 93 static void snd_msnd_eval_dsp_msg(struct snd_msnd *chip, u16 wMessage)
 94 {
 95         switch (HIBYTE(wMessage)) {
 96         case HIMT_PLAY_DONE: {
 97                 if (chip->banksPlayed < 3)
 98                         snd_printdd("%08X: HIMT_PLAY_DONE: %i\n",
 99                                 (unsigned)jiffies, LOBYTE(wMessage));
100 
101                 if (chip->last_playbank == LOBYTE(wMessage)) {
102                         snd_printdd("chip.last_playbank == LOBYTE(wMessage)\n");
103                         break;
104                 }
105                 chip->banksPlayed++;
106 
107                 if (test_bit(F_WRITING, &chip->flags))
108                         snd_msnd_DAPQ(chip, 0);
109 
110                 chip->last_playbank = LOBYTE(wMessage);
111                 chip->playDMAPos += chip->play_period_bytes;
112                 if (chip->playDMAPos > chip->playLimit)
113                         chip->playDMAPos = 0;
114                 snd_pcm_period_elapsed(chip->playback_substream);
115 
116                 break;
117         }
118         case HIMT_RECORD_DONE:
119                 if (chip->last_recbank == LOBYTE(wMessage))
120                         break;
121                 chip->last_recbank = LOBYTE(wMessage);
122                 chip->captureDMAPos += chip->capturePeriodBytes;
123                 if (chip->captureDMAPos > (chip->captureLimit))
124                         chip->captureDMAPos = 0;
125 
126                 if (test_bit(F_READING, &chip->flags))
127                         snd_msnd_DARQ(chip, chip->last_recbank);
128 
129                 snd_pcm_period_elapsed(chip->capture_substream);
130                 break;
131 
132         case HIMT_DSP:
133                 switch (LOBYTE(wMessage)) {
134 #ifndef MSND_CLASSIC
135                 case HIDSP_PLAY_UNDER:
136 #endif
137                 case HIDSP_INT_PLAY_UNDER:
138                         snd_printd(KERN_WARNING LOGNAME ": Play underflow %i\n",
139                                 chip->banksPlayed);
140                         if (chip->banksPlayed > 2)
141                                 clear_bit(F_WRITING, &chip->flags);
142                         break;
143 
144                 case HIDSP_INT_RECORD_OVER:
145                         snd_printd(KERN_WARNING LOGNAME ": Record overflow\n");
146                         clear_bit(F_READING, &chip->flags);
147                         break;
148 
149                 default:
150                         snd_printd(KERN_WARNING LOGNAME
151                                    ": DSP message %d 0x%02x\n",
152                                    LOBYTE(wMessage), LOBYTE(wMessage));
153                         break;
154                 }
155                 break;
156 
157         case HIMT_MIDI_IN_UCHAR:
158                 if (chip->msndmidi_mpu)
159                         snd_msndmidi_input_read(chip->msndmidi_mpu);
160                 break;
161 
162         default:
163                 snd_printd(KERN_WARNING LOGNAME ": HIMT message %d 0x%02x\n",
164                            HIBYTE(wMessage), HIBYTE(wMessage));
165                 break;
166         }
167 }
168 
169 static irqreturn_t snd_msnd_interrupt(int irq, void *dev_id)
170 {
171         struct snd_msnd *chip = dev_id;
172         void *pwDSPQData = chip->mappedbase + DSPQ_DATA_BUFF;
173 
174         /* Send ack to DSP */
175         /* inb(chip->io + HP_RXL); */
176 
177         /* Evaluate queued DSP messages */
178         while (readw(chip->DSPQ + JQS_wTail) != readw(chip->DSPQ + JQS_wHead)) {
179                 u16 wTmp;
180 
181                 snd_msnd_eval_dsp_msg(chip,
182                         readw(pwDSPQData + 2 * readw(chip->DSPQ + JQS_wHead)));
183 
184                 wTmp = readw(chip->DSPQ + JQS_wHead) + 1;
185                 if (wTmp > readw(chip->DSPQ + JQS_wSize))
186                         writew(0, chip->DSPQ + JQS_wHead);
187                 else
188                         writew(wTmp, chip->DSPQ + JQS_wHead);
189         }
190         /* Send ack to DSP */
191         inb(chip->io + HP_RXL);
192         return IRQ_HANDLED;
193 }
194 
195 
196 static int snd_msnd_reset_dsp(long io, unsigned char *info)
197 {
198         int timeout = 100;
199 
200         outb(HPDSPRESET_ON, io + HP_DSPR);
201         msleep(1);
202 #ifndef MSND_CLASSIC
203         if (info)
204                 *info = inb(io + HP_INFO);
205 #endif
206         outb(HPDSPRESET_OFF, io + HP_DSPR);
207         msleep(1);
208         while (timeout-- > 0) {
209                 if (inb(io + HP_CVR) == HP_CVR_DEF)
210                         return 0;
211                 msleep(1);
212         }
213         snd_printk(KERN_ERR LOGNAME ": Cannot reset DSP\n");
214 
215         return -EIO;
216 }
217 
218 static int snd_msnd_probe(struct snd_card *card)
219 {
220         struct snd_msnd *chip = card->private_data;
221         unsigned char info;
222 #ifndef MSND_CLASSIC
223         char *xv, *rev = NULL;
224         char *pin = "TB Pinnacle", *fiji = "TB Fiji";
225         char *pinfiji = "TB Pinnacle/Fiji";
226 #endif
227 
228         if (!request_region(chip->io, DSP_NUMIO, "probing")) {
229                 snd_printk(KERN_ERR LOGNAME ": I/O port conflict\n");
230                 return -ENODEV;
231         }
232 
233         if (snd_msnd_reset_dsp(chip->io, &info) < 0) {
234                 release_region(chip->io, DSP_NUMIO);
235                 return -ENODEV;
236         }
237 
238 #ifdef MSND_CLASSIC
239         strcpy(card->shortname, "Classic/Tahiti/Monterey");
240         strcpy(card->longname, "Turtle Beach Multisound");
241         printk(KERN_INFO LOGNAME ": %s, "
242                "I/O 0x%lx-0x%lx, IRQ %d, memory mapped to 0x%lX-0x%lX\n",
243                card->shortname,
244                chip->io, chip->io + DSP_NUMIO - 1,
245                chip->irq,
246                chip->base, chip->base + 0x7fff);
247 #else
248         switch (info >> 4) {
249         case 0xf:
250                 xv = "<= 1.15";
251                 break;
252         case 0x1:
253                 xv = "1.18/1.2";
254                 break;
255         case 0x2:
256                 xv = "1.3";
257                 break;
258         case 0x3:
259                 xv = "1.4";
260                 break;
261         default:
262                 xv = "unknown";
263                 break;
264         }
265 
266         switch (info & 0x7) {
267         case 0x0:
268                 rev = "I";
269                 strcpy(card->shortname, pin);
270                 break;
271         case 0x1:
272                 rev = "F";
273                 strcpy(card->shortname, pin);
274                 break;
275         case 0x2:
276                 rev = "G";
277                 strcpy(card->shortname, pin);
278                 break;
279         case 0x3:
280                 rev = "H";
281                 strcpy(card->shortname, pin);
282                 break;
283         case 0x4:
284                 rev = "E";
285                 strcpy(card->shortname, fiji);
286                 break;
287         case 0x5:
288                 rev = "C";
289                 strcpy(card->shortname, fiji);
290                 break;
291         case 0x6:
292                 rev = "D";
293                 strcpy(card->shortname, fiji);
294                 break;
295         case 0x7:
296                 rev = "A-B (Fiji) or A-E (Pinnacle)";
297                 strcpy(card->shortname, pinfiji);
298                 break;
299         }
300         strcpy(card->longname, "Turtle Beach Multisound Pinnacle");
301         printk(KERN_INFO LOGNAME ": %s revision %s, Xilinx version %s, "
302                "I/O 0x%lx-0x%lx, IRQ %d, memory mapped to 0x%lX-0x%lX\n",
303                card->shortname,
304                rev, xv,
305                chip->io, chip->io + DSP_NUMIO - 1,
306                chip->irq,
307                chip->base, chip->base + 0x7fff);
308 #endif
309 
310         release_region(chip->io, DSP_NUMIO);
311         return 0;
312 }
313 
314 static int snd_msnd_init_sma(struct snd_msnd *chip)
315 {
316         static int initted;
317         u16 mastVolLeft, mastVolRight;
318         unsigned long flags;
319 
320 #ifdef MSND_CLASSIC
321         outb(chip->memid, chip->io + HP_MEMM);
322 #endif
323         outb(HPBLKSEL_0, chip->io + HP_BLKS);
324         /* Motorola 56k shared memory base */
325         chip->SMA = chip->mappedbase + SMA_STRUCT_START;
326 
327         if (initted) {
328                 mastVolLeft = readw(chip->SMA + SMA_wCurrMastVolLeft);
329                 mastVolRight = readw(chip->SMA + SMA_wCurrMastVolRight);
330         } else
331                 mastVolLeft = mastVolRight = 0;
332         memset_io(chip->mappedbase, 0, 0x8000);
333 
334         /* Critical section: bank 1 access */
335         spin_lock_irqsave(&chip->lock, flags);
336         outb(HPBLKSEL_1, chip->io + HP_BLKS);
337         memset_io(chip->mappedbase, 0, 0x8000);
338         outb(HPBLKSEL_0, chip->io + HP_BLKS);
339         spin_unlock_irqrestore(&chip->lock, flags);
340 
341         /* Digital audio play queue */
342         chip->DAPQ = chip->mappedbase + DAPQ_OFFSET;
343         snd_msnd_init_queue(chip->DAPQ, DAPQ_DATA_BUFF, DAPQ_BUFF_SIZE);
344 
345         /* Digital audio record queue */
346         chip->DARQ = chip->mappedbase + DARQ_OFFSET;
347         snd_msnd_init_queue(chip->DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE);
348 
349         /* MIDI out queue */
350         chip->MODQ = chip->mappedbase + MODQ_OFFSET;
351         snd_msnd_init_queue(chip->MODQ, MODQ_DATA_BUFF, MODQ_BUFF_SIZE);
352 
353         /* MIDI in queue */
354         chip->MIDQ = chip->mappedbase + MIDQ_OFFSET;
355         snd_msnd_init_queue(chip->MIDQ, MIDQ_DATA_BUFF, MIDQ_BUFF_SIZE);
356 
357         /* DSP -> host message queue */
358         chip->DSPQ = chip->mappedbase + DSPQ_OFFSET;
359         snd_msnd_init_queue(chip->DSPQ, DSPQ_DATA_BUFF, DSPQ_BUFF_SIZE);
360 
361         /* Setup some DSP values */
362 #ifndef MSND_CLASSIC
363         writew(1, chip->SMA + SMA_wCurrPlayFormat);
364         writew(chip->play_sample_size, chip->SMA + SMA_wCurrPlaySampleSize);
365         writew(chip->play_channels, chip->SMA + SMA_wCurrPlayChannels);
366         writew(chip->play_sample_rate, chip->SMA + SMA_wCurrPlaySampleRate);
367 #endif
368         writew(chip->play_sample_rate, chip->SMA + SMA_wCalFreqAtoD);
369         writew(mastVolLeft, chip->SMA + SMA_wCurrMastVolLeft);
370         writew(mastVolRight, chip->SMA + SMA_wCurrMastVolRight);
371 #ifndef MSND_CLASSIC
372         writel(0x00010000, chip->SMA + SMA_dwCurrPlayPitch);
373         writel(0x00000001, chip->SMA + SMA_dwCurrPlayRate);
374 #endif
375         writew(0x303, chip->SMA + SMA_wCurrInputTagBits);
376 
377         initted = 1;
378 
379         return 0;
380 }
381 
382 
383 static int upload_dsp_code(struct snd_card *card)
384 {
385         struct snd_msnd *chip = card->private_data;
386         const struct firmware *init_fw = NULL, *perm_fw = NULL;
387         int err;
388 
389         outb(HPBLKSEL_0, chip->io + HP_BLKS);
390 
391         err = request_firmware(&init_fw, INITCODEFILE, card->dev);
392         if (err < 0) {
393                 printk(KERN_ERR LOGNAME ": Error loading " INITCODEFILE);
394                 goto cleanup1;
395         }
396         err = request_firmware(&perm_fw, PERMCODEFILE, card->dev);
397         if (err < 0) {
398                 printk(KERN_ERR LOGNAME ": Error loading " PERMCODEFILE);
399                 goto cleanup;
400         }
401 
402         memcpy_toio(chip->mappedbase, perm_fw->data, perm_fw->size);
403         if (snd_msnd_upload_host(chip, init_fw->data, init_fw->size) < 0) {
404                 printk(KERN_WARNING LOGNAME ": Error uploading to DSP\n");
405                 err = -ENODEV;
406                 goto cleanup;
407         }
408         printk(KERN_INFO LOGNAME ": DSP firmware uploaded\n");
409         err = 0;
410 
411 cleanup:
412         release_firmware(perm_fw);
413 cleanup1:
414         release_firmware(init_fw);
415         return err;
416 }
417 
418 #ifdef MSND_CLASSIC
419 static void reset_proteus(struct snd_msnd *chip)
420 {
421         outb(HPPRORESET_ON, chip->io + HP_PROR);
422         msleep(TIME_PRO_RESET);
423         outb(HPPRORESET_OFF, chip->io + HP_PROR);
424         msleep(TIME_PRO_RESET_DONE);
425 }
426 #endif
427 
428 static int snd_msnd_initialize(struct snd_card *card)
429 {
430         struct snd_msnd *chip = card->private_data;
431         int err, timeout;
432 
433 #ifdef MSND_CLASSIC
434         outb(HPWAITSTATE_0, chip->io + HP_WAIT);
435         outb(HPBITMODE_16, chip->io + HP_BITM);
436 
437         reset_proteus(chip);
438 #endif
439         err = snd_msnd_init_sma(chip);
440         if (err < 0) {
441                 printk(KERN_WARNING LOGNAME ": Cannot initialize SMA\n");
442                 return err;
443         }
444 
445         err = snd_msnd_reset_dsp(chip->io, NULL);
446         if (err < 0)
447                 return err;
448 
449         err = upload_dsp_code(card);
450         if (err < 0) {
451                 printk(KERN_WARNING LOGNAME ": Cannot upload DSP code\n");
452                 return err;
453         }
454 
455         timeout = 200;
456 
457         while (readw(chip->mappedbase)) {
458                 msleep(1);
459                 if (!timeout--) {
460                         snd_printd(KERN_ERR LOGNAME ": DSP reset timeout\n");
461                         return -EIO;
462                 }
463         }
464 
465         snd_msndmix_setup(chip);
466         return 0;
467 }
468 
469 static int snd_msnd_dsp_full_reset(struct snd_card *card)
470 {
471         struct snd_msnd *chip = card->private_data;
472         int rv;
473 
474         if (test_bit(F_RESETTING, &chip->flags) || ++chip->nresets > 10)
475                 return 0;
476 
477         set_bit(F_RESETTING, &chip->flags);
478         snd_msnd_dsp_halt(chip, NULL);  /* Unconditionally halt */
479 
480         rv = snd_msnd_initialize(card);
481         if (rv)
482                 printk(KERN_WARNING LOGNAME ": DSP reset failed\n");
483         snd_msndmix_force_recsrc(chip, 0);
484         clear_bit(F_RESETTING, &chip->flags);
485         return rv;
486 }
487 
488 static int snd_msnd_dev_free(struct snd_device *device)
489 {
490         snd_printdd("snd_msnd_chip_free()\n");
491         return 0;
492 }
493 
494 static int snd_msnd_send_dsp_cmd_chk(struct snd_msnd *chip, u8 cmd)
495 {
496         if (snd_msnd_send_dsp_cmd(chip, cmd) == 0)
497                 return 0;
498         snd_msnd_dsp_full_reset(chip->card);
499         return snd_msnd_send_dsp_cmd(chip, cmd);
500 }
501 
502 static int snd_msnd_calibrate_adc(struct snd_msnd *chip, u16 srate)
503 {
504         snd_printdd("snd_msnd_calibrate_adc(%i)\n", srate);
505         writew(srate, chip->SMA + SMA_wCalFreqAtoD);
506         if (chip->calibrate_signal == 0)
507                 writew(readw(chip->SMA + SMA_wCurrHostStatusFlags)
508                        | 0x0001, chip->SMA + SMA_wCurrHostStatusFlags);
509         else
510                 writew(readw(chip->SMA + SMA_wCurrHostStatusFlags)
511                        & ~0x0001, chip->SMA + SMA_wCurrHostStatusFlags);
512         if (snd_msnd_send_word(chip, 0, 0, HDEXAR_CAL_A_TO_D) == 0 &&
513             snd_msnd_send_dsp_cmd_chk(chip, HDEX_AUX_REQ) == 0) {
514                 schedule_timeout_interruptible(msecs_to_jiffies(333));
515                 return 0;
516         }
517         printk(KERN_WARNING LOGNAME ": ADC calibration failed\n");
518         return -EIO;
519 }
520 
521 /*
522  * ALSA callback function, called when attempting to open the MIDI device.
523  */
524 static int snd_msnd_mpu401_open(struct snd_mpu401 *mpu)
525 {
526         snd_msnd_enable_irq(mpu->private_data);
527         snd_msnd_send_dsp_cmd(mpu->private_data, HDEX_MIDI_IN_START);
528         return 0;
529 }
530 
531 static void snd_msnd_mpu401_close(struct snd_mpu401 *mpu)
532 {
533         snd_msnd_send_dsp_cmd(mpu->private_data, HDEX_MIDI_IN_STOP);
534         snd_msnd_disable_irq(mpu->private_data);
535 }
536 
537 static long mpu_io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
538 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
539 
540 static int snd_msnd_attach(struct snd_card *card)
541 {
542         struct snd_msnd *chip = card->private_data;
543         int err;
544         static struct snd_device_ops ops = {
545                 .dev_free =      snd_msnd_dev_free,
546                 };
547 
548         err = request_irq(chip->irq, snd_msnd_interrupt, 0, card->shortname,
549                           chip);
550         if (err < 0) {
551                 printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", chip->irq);
552                 return err;
553         }
554         if (request_region(chip->io, DSP_NUMIO, card->shortname) == NULL) {
555                 free_irq(chip->irq, chip);
556                 return -EBUSY;
557         }
558 
559         if (!request_mem_region(chip->base, BUFFSIZE, card->shortname)) {
560                 printk(KERN_ERR LOGNAME
561                         ": unable to grab memory region 0x%lx-0x%lx\n",
562                         chip->base, chip->base + BUFFSIZE - 1);
563                 release_region(chip->io, DSP_NUMIO);
564                 free_irq(chip->irq, chip);
565                 return -EBUSY;
566         }
567         chip->mappedbase = ioremap_nocache(chip->base, 0x8000);
568         if (!chip->mappedbase) {
569                 printk(KERN_ERR LOGNAME
570                         ": unable to map memory region 0x%lx-0x%lx\n",
571                         chip->base, chip->base + BUFFSIZE - 1);
572                 err = -EIO;
573                 goto err_release_region;
574         }
575 
576         err = snd_msnd_dsp_full_reset(card);
577         if (err < 0)
578                 goto err_release_region;
579 
580         /* Register device */
581         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
582         if (err < 0)
583                 goto err_release_region;
584 
585         err = snd_msnd_pcm(card, 0);
586         if (err < 0) {
587                 printk(KERN_ERR LOGNAME ": error creating new PCM device\n");
588                 goto err_release_region;
589         }
590 
591         err = snd_msndmix_new(card);
592         if (err < 0) {
593                 printk(KERN_ERR LOGNAME ": error creating new Mixer device\n");
594                 goto err_release_region;
595         }
596 
597 
598         if (mpu_io[0] != SNDRV_AUTO_PORT) {
599                 struct snd_mpu401 *mpu;
600 
601                 err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
602                                           mpu_io[0],
603                                           MPU401_MODE_INPUT |
604                                           MPU401_MODE_OUTPUT,
605                                           mpu_irq[0],
606                                           &chip->rmidi);
607                 if (err < 0) {
608                         printk(KERN_ERR LOGNAME
609                                 ": error creating new Midi device\n");
610                         goto err_release_region;
611                 }
612                 mpu = chip->rmidi->private_data;
613 
614                 mpu->open_input = snd_msnd_mpu401_open;
615                 mpu->close_input = snd_msnd_mpu401_close;
616                 mpu->private_data = chip;
617         }
618 
619         disable_irq(chip->irq);
620         snd_msnd_calibrate_adc(chip, chip->play_sample_rate);
621         snd_msndmix_force_recsrc(chip, 0);
622 
623         err = snd_card_register(card);
624         if (err < 0)
625                 goto err_release_region;
626 
627         return 0;
628 
629 err_release_region:
630         iounmap(chip->mappedbase);
631         release_mem_region(chip->base, BUFFSIZE);
632         release_region(chip->io, DSP_NUMIO);
633         free_irq(chip->irq, chip);
634         return err;
635 }
636 
637 
638 static void snd_msnd_unload(struct snd_card *card)
639 {
640         struct snd_msnd *chip = card->private_data;
641 
642         iounmap(chip->mappedbase);
643         release_mem_region(chip->base, BUFFSIZE);
644         release_region(chip->io, DSP_NUMIO);
645         free_irq(chip->irq, chip);
646         snd_card_free(card);
647 }
648 
649 #ifndef MSND_CLASSIC
650 
651 /* Pinnacle/Fiji Logical Device Configuration */
652 
653 static int snd_msnd_write_cfg(int cfg, int reg, int value)
654 {
655         outb(reg, cfg);
656         outb(value, cfg + 1);
657         if (value != inb(cfg + 1)) {
658                 printk(KERN_ERR LOGNAME ": snd_msnd_write_cfg: I/O error\n");
659                 return -EIO;
660         }
661         return 0;
662 }
663 
664 static int snd_msnd_write_cfg_io0(int cfg, int num, u16 io)
665 {
666         if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
667                 return -EIO;
668         if (snd_msnd_write_cfg(cfg, IREG_IO0_BASEHI, HIBYTE(io)))
669                 return -EIO;
670         if (snd_msnd_write_cfg(cfg, IREG_IO0_BASELO, LOBYTE(io)))
671                 return -EIO;
672         return 0;
673 }
674 
675 static int snd_msnd_write_cfg_io1(int cfg, int num, u16 io)
676 {
677         if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
678                 return -EIO;
679         if (snd_msnd_write_cfg(cfg, IREG_IO1_BASEHI, HIBYTE(io)))
680                 return -EIO;
681         if (snd_msnd_write_cfg(cfg, IREG_IO1_BASELO, LOBYTE(io)))
682                 return -EIO;
683         return 0;
684 }
685 
686 static int snd_msnd_write_cfg_irq(int cfg, int num, u16 irq)
687 {
688         if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
689                 return -EIO;
690         if (snd_msnd_write_cfg(cfg, IREG_IRQ_NUMBER, LOBYTE(irq)))
691                 return -EIO;
692         if (snd_msnd_write_cfg(cfg, IREG_IRQ_TYPE, IRQTYPE_EDGE))
693                 return -EIO;
694         return 0;
695 }
696 
697 static int snd_msnd_write_cfg_mem(int cfg, int num, int mem)
698 {
699         u16 wmem;
700 
701         mem >>= 8;
702         wmem = (u16)(mem & 0xfff);
703         if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
704                 return -EIO;
705         if (snd_msnd_write_cfg(cfg, IREG_MEMBASEHI, HIBYTE(wmem)))
706                 return -EIO;
707         if (snd_msnd_write_cfg(cfg, IREG_MEMBASELO, LOBYTE(wmem)))
708                 return -EIO;
709         if (wmem && snd_msnd_write_cfg(cfg, IREG_MEMCONTROL,
710                                        MEMTYPE_HIADDR | MEMTYPE_16BIT))
711                 return -EIO;
712         return 0;
713 }
714 
715 static int snd_msnd_activate_logical(int cfg, int num)
716 {
717         if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
718                 return -EIO;
719         if (snd_msnd_write_cfg(cfg, IREG_ACTIVATE, LD_ACTIVATE))
720                 return -EIO;
721         return 0;
722 }
723 
724 static int snd_msnd_write_cfg_logical(int cfg, int num, u16 io0,
725                                       u16 io1, u16 irq, int mem)
726 {
727         if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
728                 return -EIO;
729         if (snd_msnd_write_cfg_io0(cfg, num, io0))
730                 return -EIO;
731         if (snd_msnd_write_cfg_io1(cfg, num, io1))
732                 return -EIO;
733         if (snd_msnd_write_cfg_irq(cfg, num, irq))
734                 return -EIO;
735         if (snd_msnd_write_cfg_mem(cfg, num, mem))
736                 return -EIO;
737         if (snd_msnd_activate_logical(cfg, num))
738                 return -EIO;
739         return 0;
740 }
741 
742 static int snd_msnd_pinnacle_cfg_reset(int cfg)
743 {
744         int i;
745 
746         /* Reset devices if told to */
747         printk(KERN_INFO LOGNAME ": Resetting all devices\n");
748         for (i = 0; i < 4; ++i)
749                 if (snd_msnd_write_cfg_logical(cfg, i, 0, 0, 0, 0))
750                         return -EIO;
751 
752         return 0;
753 }
754 #endif
755 
756 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
757 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
758 
759 module_param_array(index, int, NULL, S_IRUGO);
760 MODULE_PARM_DESC(index, "Index value for msnd_pinnacle soundcard.");
761 module_param_array(id, charp, NULL, S_IRUGO);
762 MODULE_PARM_DESC(id, "ID string for msnd_pinnacle soundcard.");
763 
764 static long io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
765 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
766 static long mem[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
767 
768 #ifndef MSND_CLASSIC
769 static long cfg[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
770 
771 /* Extra Peripheral Configuration (Default: Disable) */
772 static long ide_io0[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
773 static long ide_io1[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
774 static int ide_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
775 
776 static long joystick_io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
777 /* If we have the digital daugherboard... */
778 static int digital[SNDRV_CARDS];
779 
780 /* Extra Peripheral Configuration */
781 static int reset[SNDRV_CARDS];
782 #endif
783 
784 static int write_ndelay[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = 1 };
785 
786 static int calibrate_signal;
787 
788 #ifdef CONFIG_PNP
789 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
790 module_param_array(isapnp, bool, NULL, 0444);
791 MODULE_PARM_DESC(isapnp, "ISA PnP detection for specified soundcard.");
792 #define has_isapnp(x) isapnp[x]
793 #else
794 #define has_isapnp(x) 0
795 #endif
796 
797 MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
798 MODULE_DESCRIPTION("Turtle Beach " LONGNAME " Linux Driver");
799 MODULE_LICENSE("GPL");
800 MODULE_FIRMWARE(INITCODEFILE);
801 MODULE_FIRMWARE(PERMCODEFILE);
802 
803 module_param_array(io, long, NULL, S_IRUGO);
804 MODULE_PARM_DESC(io, "IO port #");
805 module_param_array(irq, int, NULL, S_IRUGO);
806 module_param_array(mem, long, NULL, S_IRUGO);
807 module_param_array(write_ndelay, int, NULL, S_IRUGO);
808 module_param(calibrate_signal, int, S_IRUGO);
809 #ifndef MSND_CLASSIC
810 module_param_array(digital, int, NULL, S_IRUGO);
811 module_param_array(cfg, long, NULL, S_IRUGO);
812 module_param_array(reset, int, 0, S_IRUGO);
813 module_param_array(mpu_io, long, NULL, S_IRUGO);
814 module_param_array(mpu_irq, int, NULL, S_IRUGO);
815 module_param_array(ide_io0, long, NULL, S_IRUGO);
816 module_param_array(ide_io1, long, NULL, S_IRUGO);
817 module_param_array(ide_irq, int, NULL, S_IRUGO);
818 module_param_array(joystick_io, long, NULL, S_IRUGO);
819 #endif
820 
821 
822 static int snd_msnd_isa_match(struct device *pdev, unsigned int i)
823 {
824         if (io[i] == SNDRV_AUTO_PORT)
825                 return 0;
826 
827         if (irq[i] == SNDRV_AUTO_PORT || mem[i] == SNDRV_AUTO_PORT) {
828                 printk(KERN_WARNING LOGNAME ": io, irq and mem must be set\n");
829                 return 0;
830         }
831 
832 #ifdef MSND_CLASSIC
833         if (!(io[i] == 0x290 ||
834               io[i] == 0x260 ||
835               io[i] == 0x250 ||
836               io[i] == 0x240 ||
837               io[i] == 0x230 ||
838               io[i] == 0x220 ||
839               io[i] == 0x210 ||
840               io[i] == 0x3e0)) {
841                 printk(KERN_ERR LOGNAME ": \"io\" - DSP I/O base must be set "
842                         " to 0x210, 0x220, 0x230, 0x240, 0x250, 0x260, 0x290, "
843                         "or 0x3E0\n");
844                 return 0;
845         }
846 #else
847         if (io[i] < 0x100 || io[i] > 0x3e0 || (io[i] % 0x10) != 0) {
848                 printk(KERN_ERR LOGNAME
849                         ": \"io\" - DSP I/O base must within the range 0x100 "
850                         "to 0x3E0 and must be evenly divisible by 0x10\n");
851                 return 0;
852         }
853 #endif /* MSND_CLASSIC */
854 
855         if (!(irq[i] == 5 ||
856               irq[i] == 7 ||
857               irq[i] == 9 ||
858               irq[i] == 10 ||
859               irq[i] == 11 ||
860               irq[i] == 12)) {
861                 printk(KERN_ERR LOGNAME
862                         ": \"irq\" - must be set to 5, 7, 9, 10, 11 or 12\n");
863                 return 0;
864         }
865 
866         if (!(mem[i] == 0xb0000 ||
867               mem[i] == 0xc8000 ||
868               mem[i] == 0xd0000 ||
869               mem[i] == 0xd8000 ||
870               mem[i] == 0xe0000 ||
871               mem[i] == 0xe8000)) {
872                 printk(KERN_ERR LOGNAME ": \"mem\" - must be set to "
873                        "0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or "
874                        "0xe8000\n");
875                 return 0;
876         }
877 
878 #ifndef MSND_CLASSIC
879         if (cfg[i] == SNDRV_AUTO_PORT) {
880                 printk(KERN_INFO LOGNAME ": Assuming PnP mode\n");
881         } else if (cfg[i] != 0x250 && cfg[i] != 0x260 && cfg[i] != 0x270) {
882                 printk(KERN_INFO LOGNAME
883                         ": Config port must be 0x250, 0x260 or 0x270 "
884                         "(or unspecified for PnP mode)\n");
885                 return 0;
886         }
887 #endif /* MSND_CLASSIC */
888 
889         return 1;
890 }
891 
892 static int snd_msnd_isa_probe(struct device *pdev, unsigned int idx)
893 {
894         int err;
895         struct snd_card *card;
896         struct snd_msnd *chip;
897 
898         if (has_isapnp(idx)
899 #ifndef MSND_CLASSIC
900             || cfg[idx] == SNDRV_AUTO_PORT
901 #endif
902             ) {
903                 printk(KERN_INFO LOGNAME ": Assuming PnP mode\n");
904                 return -ENODEV;
905         }
906 
907         err = snd_card_new(pdev, index[idx], id[idx], THIS_MODULE,
908                            sizeof(struct snd_msnd), &card);
909         if (err < 0)
910                 return err;
911 
912         chip = card->private_data;
913         chip->card = card;
914 
915 #ifdef MSND_CLASSIC
916         switch (irq[idx]) {
917         case 5:
918                 chip->irqid = HPIRQ_5; break;
919         case 7:
920                 chip->irqid = HPIRQ_7; break;
921         case 9:
922                 chip->irqid = HPIRQ_9; break;
923         case 10:
924                 chip->irqid = HPIRQ_10; break;
925         case 11:
926                 chip->irqid = HPIRQ_11; break;
927         case 12:
928                 chip->irqid = HPIRQ_12; break;
929         }
930 
931         switch (mem[idx]) {
932         case 0xb0000:
933                 chip->memid = HPMEM_B000; break;
934         case 0xc8000:
935                 chip->memid = HPMEM_C800; break;
936         case 0xd0000:
937                 chip->memid = HPMEM_D000; break;
938         case 0xd8000:
939                 chip->memid = HPMEM_D800; break;
940         case 0xe0000:
941                 chip->memid = HPMEM_E000; break;
942         case 0xe8000:
943                 chip->memid = HPMEM_E800; break;
944         }
945 #else
946         printk(KERN_INFO LOGNAME ": Non-PnP mode: configuring at port 0x%lx\n",
947                         cfg[idx]);
948 
949         if (!request_region(cfg[idx], 2, "Pinnacle/Fiji Config")) {
950                 printk(KERN_ERR LOGNAME ": Config port 0x%lx conflict\n",
951                            cfg[idx]);
952                 snd_card_free(card);
953                 return -EIO;
954         }
955         if (reset[idx])
956                 if (snd_msnd_pinnacle_cfg_reset(cfg[idx])) {
957                         err = -EIO;
958                         goto cfg_error;
959                 }
960 
961         /* DSP */
962         err = snd_msnd_write_cfg_logical(cfg[idx], 0,
963                                          io[idx], 0,
964                                          irq[idx], mem[idx]);
965 
966         if (err)
967                 goto cfg_error;
968 
969         /* The following are Pinnacle specific */
970 
971         /* MPU */
972         if (mpu_io[idx] != SNDRV_AUTO_PORT
973             && mpu_irq[idx] != SNDRV_AUTO_IRQ) {
974                 printk(KERN_INFO LOGNAME
975                        ": Configuring MPU to I/O 0x%lx IRQ %d\n",
976                        mpu_io[idx], mpu_irq[idx]);
977                 err = snd_msnd_write_cfg_logical(cfg[idx], 1,
978                                                  mpu_io[idx], 0,
979                                                  mpu_irq[idx], 0);
980 
981                 if (err)
982                         goto cfg_error;
983         }
984 
985         /* IDE */
986         if (ide_io0[idx] != SNDRV_AUTO_PORT
987             && ide_io1[idx] != SNDRV_AUTO_PORT
988             && ide_irq[idx] != SNDRV_AUTO_IRQ) {
989                 printk(KERN_INFO LOGNAME
990                        ": Configuring IDE to I/O 0x%lx, 0x%lx IRQ %d\n",
991                        ide_io0[idx], ide_io1[idx], ide_irq[idx]);
992                 err = snd_msnd_write_cfg_logical(cfg[idx], 2,
993                                                  ide_io0[idx], ide_io1[idx],
994                                                  ide_irq[idx], 0);
995 
996                 if (err)
997                         goto cfg_error;
998         }
999 
1000         /* Joystick */
1001         if (joystick_io[idx] != SNDRV_AUTO_PORT) {
1002                 printk(KERN_INFO LOGNAME
1003                        ": Configuring joystick to I/O 0x%lx\n",
1004                        joystick_io[idx]);
1005                 err = snd_msnd_write_cfg_logical(cfg[idx], 3,
1006                                                  joystick_io[idx], 0,
1007                                                  0, 0);
1008 
1009                 if (err)
1010                         goto cfg_error;
1011         }
1012         release_region(cfg[idx], 2);
1013 
1014 #endif /* MSND_CLASSIC */
1015 
1016         set_default_audio_parameters(chip);
1017 #ifdef MSND_CLASSIC
1018         chip->type = msndClassic;
1019 #else
1020         chip->type = msndPinnacle;
1021 #endif
1022         chip->io = io[idx];
1023         chip->irq = irq[idx];
1024         chip->base = mem[idx];
1025 
1026         chip->calibrate_signal = calibrate_signal ? 1 : 0;
1027         chip->recsrc = 0;
1028         chip->dspq_data_buff = DSPQ_DATA_BUFF;
1029         chip->dspq_buff_size = DSPQ_BUFF_SIZE;
1030         if (write_ndelay[idx])
1031                 clear_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1032         else
1033                 set_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1034 #ifndef MSND_CLASSIC
1035         if (digital[idx])
1036                 set_bit(F_HAVEDIGITAL, &chip->flags);
1037 #endif
1038         spin_lock_init(&chip->lock);
1039         err = snd_msnd_probe(card);
1040         if (err < 0) {
1041                 printk(KERN_ERR LOGNAME ": Probe failed\n");
1042                 snd_card_free(card);
1043                 return err;
1044         }
1045 
1046         err = snd_msnd_attach(card);
1047         if (err < 0) {
1048                 printk(KERN_ERR LOGNAME ": Attach failed\n");
1049                 snd_card_free(card);
1050                 return err;
1051         }
1052         dev_set_drvdata(pdev, card);
1053 
1054         return 0;
1055 
1056 #ifndef MSND_CLASSIC
1057 cfg_error:
1058         release_region(cfg[idx], 2);
1059         snd_card_free(card);
1060         return err;
1061 #endif
1062 }
1063 
1064 static int snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
1065 {
1066         snd_msnd_unload(dev_get_drvdata(pdev));
1067         return 0;
1068 }
1069 
1070 static struct isa_driver snd_msnd_driver = {
1071         .match          = snd_msnd_isa_match,
1072         .probe          = snd_msnd_isa_probe,
1073         .remove         = snd_msnd_isa_remove,
1074         /* FIXME: suspend, resume */
1075         .driver         = {
1076                 .name   = DEV_NAME
1077         },
1078 };
1079 
1080 #ifdef CONFIG_PNP
1081 static int snd_msnd_pnp_detect(struct pnp_card_link *pcard,
1082                                const struct pnp_card_device_id *pid)
1083 {
1084         static int idx;
1085         struct pnp_dev *pnp_dev;
1086         struct pnp_dev *mpu_dev;
1087         struct snd_card *card;
1088         struct snd_msnd *chip;
1089         int ret;
1090 
1091         for ( ; idx < SNDRV_CARDS; idx++) {
1092                 if (has_isapnp(idx))
1093                         break;
1094         }
1095         if (idx >= SNDRV_CARDS)
1096                 return -ENODEV;
1097 
1098         /*
1099          * Check that we still have room for another sound card ...
1100          */
1101         pnp_dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
1102         if (!pnp_dev)
1103                 return -ENODEV;
1104 
1105         mpu_dev = pnp_request_card_device(pcard, pid->devs[1].id, NULL);
1106         if (!mpu_dev)
1107                 return -ENODEV;
1108 
1109         if (!pnp_is_active(pnp_dev) && pnp_activate_dev(pnp_dev) < 0) {
1110                 printk(KERN_INFO "msnd_pinnacle: device is inactive\n");
1111                 return -EBUSY;
1112         }
1113 
1114         if (!pnp_is_active(mpu_dev) && pnp_activate_dev(mpu_dev) < 0) {
1115                 printk(KERN_INFO "msnd_pinnacle: MPU device is inactive\n");
1116                 return -EBUSY;
1117         }
1118 
1119         /*
1120          * Create a new ALSA sound card entry, in anticipation
1121          * of detecting our hardware ...
1122          */
1123         ret = snd_card_new(&pcard->card->dev,
1124                            index[idx], id[idx], THIS_MODULE,
1125                            sizeof(struct snd_msnd), &card);
1126         if (ret < 0)
1127                 return ret;
1128 
1129         chip = card->private_data;
1130         chip->card = card;
1131 
1132         /*
1133          * Read the correct parameters off the ISA PnP bus ...
1134          */
1135         io[idx] = pnp_port_start(pnp_dev, 0);
1136         irq[idx] = pnp_irq(pnp_dev, 0);
1137         mem[idx] = pnp_mem_start(pnp_dev, 0);
1138         mpu_io[idx] = pnp_port_start(mpu_dev, 0);
1139         mpu_irq[idx] = pnp_irq(mpu_dev, 0);
1140 
1141         set_default_audio_parameters(chip);
1142 #ifdef MSND_CLASSIC
1143         chip->type = msndClassic;
1144 #else
1145         chip->type = msndPinnacle;
1146 #endif
1147         chip->io = io[idx];
1148         chip->irq = irq[idx];
1149         chip->base = mem[idx];
1150 
1151         chip->calibrate_signal = calibrate_signal ? 1 : 0;
1152         chip->recsrc = 0;
1153         chip->dspq_data_buff = DSPQ_DATA_BUFF;
1154         chip->dspq_buff_size = DSPQ_BUFF_SIZE;
1155         if (write_ndelay[idx])
1156                 clear_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1157         else
1158                 set_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1159 #ifndef MSND_CLASSIC
1160         if (digital[idx])
1161                 set_bit(F_HAVEDIGITAL, &chip->flags);
1162 #endif
1163         spin_lock_init(&chip->lock);
1164         ret = snd_msnd_probe(card);
1165         if (ret < 0) {
1166                 printk(KERN_ERR LOGNAME ": Probe failed\n");
1167                 goto _release_card;
1168         }
1169 
1170         ret = snd_msnd_attach(card);
1171         if (ret < 0) {
1172                 printk(KERN_ERR LOGNAME ": Attach failed\n");
1173                 goto _release_card;
1174         }
1175 
1176         pnp_set_card_drvdata(pcard, card);
1177         ++idx;
1178         return 0;
1179 
1180 _release_card:
1181         snd_card_free(card);
1182         return ret;
1183 }
1184 
1185 static void snd_msnd_pnp_remove(struct pnp_card_link *pcard)
1186 {
1187         snd_msnd_unload(pnp_get_card_drvdata(pcard));
1188         pnp_set_card_drvdata(pcard, NULL);
1189 }
1190 
1191 static int isa_registered;
1192 static int pnp_registered;
1193 
1194 static struct pnp_card_device_id msnd_pnpids[] = {
1195         /* Pinnacle PnP */
1196         { .id = "BVJ0440", .devs = { { "TBS0000" }, { "TBS0001" } } },
1197         { .id = "" }    /* end */
1198 };
1199 
1200 MODULE_DEVICE_TABLE(pnp_card, msnd_pnpids);
1201 
1202 static struct pnp_card_driver msnd_pnpc_driver = {
1203         .flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
1204         .name = "msnd_pinnacle",
1205         .id_table = msnd_pnpids,
1206         .probe = snd_msnd_pnp_detect,
1207         .remove = snd_msnd_pnp_remove,
1208 };
1209 #endif /* CONFIG_PNP */
1210 
1211 static int __init snd_msnd_init(void)
1212 {
1213         int err;
1214 
1215         err = isa_register_driver(&snd_msnd_driver, SNDRV_CARDS);
1216 #ifdef CONFIG_PNP
1217         if (!err)
1218                 isa_registered = 1;
1219 
1220         err = pnp_register_card_driver(&msnd_pnpc_driver);
1221         if (!err)
1222                 pnp_registered = 1;
1223 
1224         if (isa_registered)
1225                 err = 0;
1226 #endif
1227         return err;
1228 }
1229 
1230 static void __exit snd_msnd_exit(void)
1231 {
1232 #ifdef CONFIG_PNP
1233         if (pnp_registered)
1234                 pnp_unregister_card_driver(&msnd_pnpc_driver);
1235         if (isa_registered)
1236 #endif
1237                 isa_unregister_driver(&snd_msnd_driver);
1238 }
1239 
1240 module_init(snd_msnd_init);
1241 module_exit(snd_msnd_exit);
1242 
1243 

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