xref: /openbmc/linux/sound/isa/msnd/msnd_pinnacle.c (revision 60772e48)
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 	u16 head, tail, size;
174 
175 	/* Send ack to DSP */
176 	/* inb(chip->io + HP_RXL); */
177 
178 	/* Evaluate queued DSP messages */
179 	head = readw(chip->DSPQ + JQS_wHead);
180 	tail = readw(chip->DSPQ + JQS_wTail);
181 	size = readw(chip->DSPQ + JQS_wSize);
182 	if (head > size || tail > size)
183 		goto out;
184 	while (head != tail) {
185 		snd_msnd_eval_dsp_msg(chip, readw(pwDSPQData + 2 * head));
186 		if (++head > size)
187 			head = 0;
188 		writew(head, chip->DSPQ + JQS_wHead);
189 	}
190  out:
191 	/* Send ack to DSP */
192 	inb(chip->io + HP_RXL);
193 	return IRQ_HANDLED;
194 }
195 
196 
197 static int snd_msnd_reset_dsp(long io, unsigned char *info)
198 {
199 	int timeout = 100;
200 
201 	outb(HPDSPRESET_ON, io + HP_DSPR);
202 	msleep(1);
203 #ifndef MSND_CLASSIC
204 	if (info)
205 		*info = inb(io + HP_INFO);
206 #endif
207 	outb(HPDSPRESET_OFF, io + HP_DSPR);
208 	msleep(1);
209 	while (timeout-- > 0) {
210 		if (inb(io + HP_CVR) == HP_CVR_DEF)
211 			return 0;
212 		msleep(1);
213 	}
214 	snd_printk(KERN_ERR LOGNAME ": Cannot reset DSP\n");
215 
216 	return -EIO;
217 }
218 
219 static int snd_msnd_probe(struct snd_card *card)
220 {
221 	struct snd_msnd *chip = card->private_data;
222 	unsigned char info;
223 #ifndef MSND_CLASSIC
224 	char *xv, *rev = NULL;
225 	char *pin = "TB Pinnacle", *fiji = "TB Fiji";
226 	char *pinfiji = "TB Pinnacle/Fiji";
227 #endif
228 
229 	if (!request_region(chip->io, DSP_NUMIO, "probing")) {
230 		snd_printk(KERN_ERR LOGNAME ": I/O port conflict\n");
231 		return -ENODEV;
232 	}
233 
234 	if (snd_msnd_reset_dsp(chip->io, &info) < 0) {
235 		release_region(chip->io, DSP_NUMIO);
236 		return -ENODEV;
237 	}
238 
239 #ifdef MSND_CLASSIC
240 	strcpy(card->shortname, "Classic/Tahiti/Monterey");
241 	strcpy(card->longname, "Turtle Beach Multisound");
242 	printk(KERN_INFO LOGNAME ": %s, "
243 	       "I/O 0x%lx-0x%lx, IRQ %d, memory mapped to 0x%lX-0x%lX\n",
244 	       card->shortname,
245 	       chip->io, chip->io + DSP_NUMIO - 1,
246 	       chip->irq,
247 	       chip->base, chip->base + 0x7fff);
248 #else
249 	switch (info >> 4) {
250 	case 0xf:
251 		xv = "<= 1.15";
252 		break;
253 	case 0x1:
254 		xv = "1.18/1.2";
255 		break;
256 	case 0x2:
257 		xv = "1.3";
258 		break;
259 	case 0x3:
260 		xv = "1.4";
261 		break;
262 	default:
263 		xv = "unknown";
264 		break;
265 	}
266 
267 	switch (info & 0x7) {
268 	case 0x0:
269 		rev = "I";
270 		strcpy(card->shortname, pin);
271 		break;
272 	case 0x1:
273 		rev = "F";
274 		strcpy(card->shortname, pin);
275 		break;
276 	case 0x2:
277 		rev = "G";
278 		strcpy(card->shortname, pin);
279 		break;
280 	case 0x3:
281 		rev = "H";
282 		strcpy(card->shortname, pin);
283 		break;
284 	case 0x4:
285 		rev = "E";
286 		strcpy(card->shortname, fiji);
287 		break;
288 	case 0x5:
289 		rev = "C";
290 		strcpy(card->shortname, fiji);
291 		break;
292 	case 0x6:
293 		rev = "D";
294 		strcpy(card->shortname, fiji);
295 		break;
296 	case 0x7:
297 		rev = "A-B (Fiji) or A-E (Pinnacle)";
298 		strcpy(card->shortname, pinfiji);
299 		break;
300 	}
301 	strcpy(card->longname, "Turtle Beach Multisound Pinnacle");
302 	printk(KERN_INFO LOGNAME ": %s revision %s, Xilinx version %s, "
303 	       "I/O 0x%lx-0x%lx, IRQ %d, memory mapped to 0x%lX-0x%lX\n",
304 	       card->shortname,
305 	       rev, xv,
306 	       chip->io, chip->io + DSP_NUMIO - 1,
307 	       chip->irq,
308 	       chip->base, chip->base + 0x7fff);
309 #endif
310 
311 	release_region(chip->io, DSP_NUMIO);
312 	return 0;
313 }
314 
315 static int snd_msnd_init_sma(struct snd_msnd *chip)
316 {
317 	static int initted;
318 	u16 mastVolLeft, mastVolRight;
319 	unsigned long flags;
320 
321 #ifdef MSND_CLASSIC
322 	outb(chip->memid, chip->io + HP_MEMM);
323 #endif
324 	outb(HPBLKSEL_0, chip->io + HP_BLKS);
325 	/* Motorola 56k shared memory base */
326 	chip->SMA = chip->mappedbase + SMA_STRUCT_START;
327 
328 	if (initted) {
329 		mastVolLeft = readw(chip->SMA + SMA_wCurrMastVolLeft);
330 		mastVolRight = readw(chip->SMA + SMA_wCurrMastVolRight);
331 	} else
332 		mastVolLeft = mastVolRight = 0;
333 	memset_io(chip->mappedbase, 0, 0x8000);
334 
335 	/* Critical section: bank 1 access */
336 	spin_lock_irqsave(&chip->lock, flags);
337 	outb(HPBLKSEL_1, chip->io + HP_BLKS);
338 	memset_io(chip->mappedbase, 0, 0x8000);
339 	outb(HPBLKSEL_0, chip->io + HP_BLKS);
340 	spin_unlock_irqrestore(&chip->lock, flags);
341 
342 	/* Digital audio play queue */
343 	chip->DAPQ = chip->mappedbase + DAPQ_OFFSET;
344 	snd_msnd_init_queue(chip->DAPQ, DAPQ_DATA_BUFF, DAPQ_BUFF_SIZE);
345 
346 	/* Digital audio record queue */
347 	chip->DARQ = chip->mappedbase + DARQ_OFFSET;
348 	snd_msnd_init_queue(chip->DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE);
349 
350 	/* MIDI out queue */
351 	chip->MODQ = chip->mappedbase + MODQ_OFFSET;
352 	snd_msnd_init_queue(chip->MODQ, MODQ_DATA_BUFF, MODQ_BUFF_SIZE);
353 
354 	/* MIDI in queue */
355 	chip->MIDQ = chip->mappedbase + MIDQ_OFFSET;
356 	snd_msnd_init_queue(chip->MIDQ, MIDQ_DATA_BUFF, MIDQ_BUFF_SIZE);
357 
358 	/* DSP -> host message queue */
359 	chip->DSPQ = chip->mappedbase + DSPQ_OFFSET;
360 	snd_msnd_init_queue(chip->DSPQ, DSPQ_DATA_BUFF, DSPQ_BUFF_SIZE);
361 
362 	/* Setup some DSP values */
363 #ifndef MSND_CLASSIC
364 	writew(1, chip->SMA + SMA_wCurrPlayFormat);
365 	writew(chip->play_sample_size, chip->SMA + SMA_wCurrPlaySampleSize);
366 	writew(chip->play_channels, chip->SMA + SMA_wCurrPlayChannels);
367 	writew(chip->play_sample_rate, chip->SMA + SMA_wCurrPlaySampleRate);
368 #endif
369 	writew(chip->play_sample_rate, chip->SMA + SMA_wCalFreqAtoD);
370 	writew(mastVolLeft, chip->SMA + SMA_wCurrMastVolLeft);
371 	writew(mastVolRight, chip->SMA + SMA_wCurrMastVolRight);
372 #ifndef MSND_CLASSIC
373 	writel(0x00010000, chip->SMA + SMA_dwCurrPlayPitch);
374 	writel(0x00000001, chip->SMA + SMA_dwCurrPlayRate);
375 #endif
376 	writew(0x303, chip->SMA + SMA_wCurrInputTagBits);
377 
378 	initted = 1;
379 
380 	return 0;
381 }
382 
383 
384 static int upload_dsp_code(struct snd_card *card)
385 {
386 	struct snd_msnd *chip = card->private_data;
387 	const struct firmware *init_fw = NULL, *perm_fw = NULL;
388 	int err;
389 
390 	outb(HPBLKSEL_0, chip->io + HP_BLKS);
391 
392 	err = request_firmware(&init_fw, INITCODEFILE, card->dev);
393 	if (err < 0) {
394 		printk(KERN_ERR LOGNAME ": Error loading " INITCODEFILE);
395 		goto cleanup1;
396 	}
397 	err = request_firmware(&perm_fw, PERMCODEFILE, card->dev);
398 	if (err < 0) {
399 		printk(KERN_ERR LOGNAME ": Error loading " PERMCODEFILE);
400 		goto cleanup;
401 	}
402 
403 	memcpy_toio(chip->mappedbase, perm_fw->data, perm_fw->size);
404 	if (snd_msnd_upload_host(chip, init_fw->data, init_fw->size) < 0) {
405 		printk(KERN_WARNING LOGNAME ": Error uploading to DSP\n");
406 		err = -ENODEV;
407 		goto cleanup;
408 	}
409 	printk(KERN_INFO LOGNAME ": DSP firmware uploaded\n");
410 	err = 0;
411 
412 cleanup:
413 	release_firmware(perm_fw);
414 cleanup1:
415 	release_firmware(init_fw);
416 	return err;
417 }
418 
419 #ifdef MSND_CLASSIC
420 static void reset_proteus(struct snd_msnd *chip)
421 {
422 	outb(HPPRORESET_ON, chip->io + HP_PROR);
423 	msleep(TIME_PRO_RESET);
424 	outb(HPPRORESET_OFF, chip->io + HP_PROR);
425 	msleep(TIME_PRO_RESET_DONE);
426 }
427 #endif
428 
429 static int snd_msnd_initialize(struct snd_card *card)
430 {
431 	struct snd_msnd *chip = card->private_data;
432 	int err, timeout;
433 
434 #ifdef MSND_CLASSIC
435 	outb(HPWAITSTATE_0, chip->io + HP_WAIT);
436 	outb(HPBITMODE_16, chip->io + HP_BITM);
437 
438 	reset_proteus(chip);
439 #endif
440 	err = snd_msnd_init_sma(chip);
441 	if (err < 0) {
442 		printk(KERN_WARNING LOGNAME ": Cannot initialize SMA\n");
443 		return err;
444 	}
445 
446 	err = snd_msnd_reset_dsp(chip->io, NULL);
447 	if (err < 0)
448 		return err;
449 
450 	err = upload_dsp_code(card);
451 	if (err < 0) {
452 		printk(KERN_WARNING LOGNAME ": Cannot upload DSP code\n");
453 		return err;
454 	}
455 
456 	timeout = 200;
457 
458 	while (readw(chip->mappedbase)) {
459 		msleep(1);
460 		if (!timeout--) {
461 			snd_printd(KERN_ERR LOGNAME ": DSP reset timeout\n");
462 			return -EIO;
463 		}
464 	}
465 
466 	snd_msndmix_setup(chip);
467 	return 0;
468 }
469 
470 static int snd_msnd_dsp_full_reset(struct snd_card *card)
471 {
472 	struct snd_msnd *chip = card->private_data;
473 	int rv;
474 
475 	if (test_bit(F_RESETTING, &chip->flags) || ++chip->nresets > 10)
476 		return 0;
477 
478 	set_bit(F_RESETTING, &chip->flags);
479 	snd_msnd_dsp_halt(chip, NULL);	/* Unconditionally halt */
480 
481 	rv = snd_msnd_initialize(card);
482 	if (rv)
483 		printk(KERN_WARNING LOGNAME ": DSP reset failed\n");
484 	snd_msndmix_force_recsrc(chip, 0);
485 	clear_bit(F_RESETTING, &chip->flags);
486 	return rv;
487 }
488 
489 static int snd_msnd_dev_free(struct snd_device *device)
490 {
491 	snd_printdd("snd_msnd_chip_free()\n");
492 	return 0;
493 }
494 
495 static int snd_msnd_send_dsp_cmd_chk(struct snd_msnd *chip, u8 cmd)
496 {
497 	if (snd_msnd_send_dsp_cmd(chip, cmd) == 0)
498 		return 0;
499 	snd_msnd_dsp_full_reset(chip->card);
500 	return snd_msnd_send_dsp_cmd(chip, cmd);
501 }
502 
503 static int snd_msnd_calibrate_adc(struct snd_msnd *chip, u16 srate)
504 {
505 	snd_printdd("snd_msnd_calibrate_adc(%i)\n", srate);
506 	writew(srate, chip->SMA + SMA_wCalFreqAtoD);
507 	if (chip->calibrate_signal == 0)
508 		writew(readw(chip->SMA + SMA_wCurrHostStatusFlags)
509 		       | 0x0001, chip->SMA + SMA_wCurrHostStatusFlags);
510 	else
511 		writew(readw(chip->SMA + SMA_wCurrHostStatusFlags)
512 		       & ~0x0001, chip->SMA + SMA_wCurrHostStatusFlags);
513 	if (snd_msnd_send_word(chip, 0, 0, HDEXAR_CAL_A_TO_D) == 0 &&
514 	    snd_msnd_send_dsp_cmd_chk(chip, HDEX_AUX_REQ) == 0) {
515 		schedule_timeout_interruptible(msecs_to_jiffies(333));
516 		return 0;
517 	}
518 	printk(KERN_WARNING LOGNAME ": ADC calibration failed\n");
519 	return -EIO;
520 }
521 
522 /*
523  * ALSA callback function, called when attempting to open the MIDI device.
524  */
525 static int snd_msnd_mpu401_open(struct snd_mpu401 *mpu)
526 {
527 	snd_msnd_enable_irq(mpu->private_data);
528 	snd_msnd_send_dsp_cmd(mpu->private_data, HDEX_MIDI_IN_START);
529 	return 0;
530 }
531 
532 static void snd_msnd_mpu401_close(struct snd_mpu401 *mpu)
533 {
534 	snd_msnd_send_dsp_cmd(mpu->private_data, HDEX_MIDI_IN_STOP);
535 	snd_msnd_disable_irq(mpu->private_data);
536 }
537 
538 static long mpu_io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
539 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
540 
541 static int snd_msnd_attach(struct snd_card *card)
542 {
543 	struct snd_msnd *chip = card->private_data;
544 	int err;
545 	static struct snd_device_ops ops = {
546 		.dev_free =      snd_msnd_dev_free,
547 		};
548 
549 	err = request_irq(chip->irq, snd_msnd_interrupt, 0, card->shortname,
550 			  chip);
551 	if (err < 0) {
552 		printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", chip->irq);
553 		return err;
554 	}
555 	if (request_region(chip->io, DSP_NUMIO, card->shortname) == NULL) {
556 		free_irq(chip->irq, chip);
557 		return -EBUSY;
558 	}
559 
560 	if (!request_mem_region(chip->base, BUFFSIZE, card->shortname)) {
561 		printk(KERN_ERR LOGNAME
562 			": unable to grab memory region 0x%lx-0x%lx\n",
563 			chip->base, chip->base + BUFFSIZE - 1);
564 		release_region(chip->io, DSP_NUMIO);
565 		free_irq(chip->irq, chip);
566 		return -EBUSY;
567 	}
568 	chip->mappedbase = ioremap_nocache(chip->base, 0x8000);
569 	if (!chip->mappedbase) {
570 		printk(KERN_ERR LOGNAME
571 			": unable to map memory region 0x%lx-0x%lx\n",
572 			chip->base, chip->base + BUFFSIZE - 1);
573 		err = -EIO;
574 		goto err_release_region;
575 	}
576 
577 	err = snd_msnd_dsp_full_reset(card);
578 	if (err < 0)
579 		goto err_release_region;
580 
581 	/* Register device */
582 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
583 	if (err < 0)
584 		goto err_release_region;
585 
586 	err = snd_msnd_pcm(card, 0);
587 	if (err < 0) {
588 		printk(KERN_ERR LOGNAME ": error creating new PCM device\n");
589 		goto err_release_region;
590 	}
591 
592 	err = snd_msndmix_new(card);
593 	if (err < 0) {
594 		printk(KERN_ERR LOGNAME ": error creating new Mixer device\n");
595 		goto err_release_region;
596 	}
597 
598 
599 	if (mpu_io[0] != SNDRV_AUTO_PORT) {
600 		struct snd_mpu401 *mpu;
601 
602 		err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
603 					  mpu_io[0],
604 					  MPU401_MODE_INPUT |
605 					  MPU401_MODE_OUTPUT,
606 					  mpu_irq[0],
607 					  &chip->rmidi);
608 		if (err < 0) {
609 			printk(KERN_ERR LOGNAME
610 				": error creating new Midi device\n");
611 			goto err_release_region;
612 		}
613 		mpu = chip->rmidi->private_data;
614 
615 		mpu->open_input = snd_msnd_mpu401_open;
616 		mpu->close_input = snd_msnd_mpu401_close;
617 		mpu->private_data = chip;
618 	}
619 
620 	disable_irq(chip->irq);
621 	snd_msnd_calibrate_adc(chip, chip->play_sample_rate);
622 	snd_msndmix_force_recsrc(chip, 0);
623 
624 	err = snd_card_register(card);
625 	if (err < 0)
626 		goto err_release_region;
627 
628 	return 0;
629 
630 err_release_region:
631 	iounmap(chip->mappedbase);
632 	release_mem_region(chip->base, BUFFSIZE);
633 	release_region(chip->io, DSP_NUMIO);
634 	free_irq(chip->irq, chip);
635 	return err;
636 }
637 
638 
639 static void snd_msnd_unload(struct snd_card *card)
640 {
641 	struct snd_msnd *chip = card->private_data;
642 
643 	iounmap(chip->mappedbase);
644 	release_mem_region(chip->base, BUFFSIZE);
645 	release_region(chip->io, DSP_NUMIO);
646 	free_irq(chip->irq, chip);
647 	snd_card_free(card);
648 }
649 
650 #ifndef MSND_CLASSIC
651 
652 /* Pinnacle/Fiji Logical Device Configuration */
653 
654 static int snd_msnd_write_cfg(int cfg, int reg, int value)
655 {
656 	outb(reg, cfg);
657 	outb(value, cfg + 1);
658 	if (value != inb(cfg + 1)) {
659 		printk(KERN_ERR LOGNAME ": snd_msnd_write_cfg: I/O error\n");
660 		return -EIO;
661 	}
662 	return 0;
663 }
664 
665 static int snd_msnd_write_cfg_io0(int cfg, int num, u16 io)
666 {
667 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
668 		return -EIO;
669 	if (snd_msnd_write_cfg(cfg, IREG_IO0_BASEHI, HIBYTE(io)))
670 		return -EIO;
671 	if (snd_msnd_write_cfg(cfg, IREG_IO0_BASELO, LOBYTE(io)))
672 		return -EIO;
673 	return 0;
674 }
675 
676 static int snd_msnd_write_cfg_io1(int cfg, int num, u16 io)
677 {
678 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
679 		return -EIO;
680 	if (snd_msnd_write_cfg(cfg, IREG_IO1_BASEHI, HIBYTE(io)))
681 		return -EIO;
682 	if (snd_msnd_write_cfg(cfg, IREG_IO1_BASELO, LOBYTE(io)))
683 		return -EIO;
684 	return 0;
685 }
686 
687 static int snd_msnd_write_cfg_irq(int cfg, int num, u16 irq)
688 {
689 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
690 		return -EIO;
691 	if (snd_msnd_write_cfg(cfg, IREG_IRQ_NUMBER, LOBYTE(irq)))
692 		return -EIO;
693 	if (snd_msnd_write_cfg(cfg, IREG_IRQ_TYPE, IRQTYPE_EDGE))
694 		return -EIO;
695 	return 0;
696 }
697 
698 static int snd_msnd_write_cfg_mem(int cfg, int num, int mem)
699 {
700 	u16 wmem;
701 
702 	mem >>= 8;
703 	wmem = (u16)(mem & 0xfff);
704 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
705 		return -EIO;
706 	if (snd_msnd_write_cfg(cfg, IREG_MEMBASEHI, HIBYTE(wmem)))
707 		return -EIO;
708 	if (snd_msnd_write_cfg(cfg, IREG_MEMBASELO, LOBYTE(wmem)))
709 		return -EIO;
710 	if (wmem && snd_msnd_write_cfg(cfg, IREG_MEMCONTROL,
711 				       MEMTYPE_HIADDR | MEMTYPE_16BIT))
712 		return -EIO;
713 	return 0;
714 }
715 
716 static int snd_msnd_activate_logical(int cfg, int num)
717 {
718 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
719 		return -EIO;
720 	if (snd_msnd_write_cfg(cfg, IREG_ACTIVATE, LD_ACTIVATE))
721 		return -EIO;
722 	return 0;
723 }
724 
725 static int snd_msnd_write_cfg_logical(int cfg, int num, u16 io0,
726 				      u16 io1, u16 irq, int mem)
727 {
728 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
729 		return -EIO;
730 	if (snd_msnd_write_cfg_io0(cfg, num, io0))
731 		return -EIO;
732 	if (snd_msnd_write_cfg_io1(cfg, num, io1))
733 		return -EIO;
734 	if (snd_msnd_write_cfg_irq(cfg, num, irq))
735 		return -EIO;
736 	if (snd_msnd_write_cfg_mem(cfg, num, mem))
737 		return -EIO;
738 	if (snd_msnd_activate_logical(cfg, num))
739 		return -EIO;
740 	return 0;
741 }
742 
743 static int snd_msnd_pinnacle_cfg_reset(int cfg)
744 {
745 	int i;
746 
747 	/* Reset devices if told to */
748 	printk(KERN_INFO LOGNAME ": Resetting all devices\n");
749 	for (i = 0; i < 4; ++i)
750 		if (snd_msnd_write_cfg_logical(cfg, i, 0, 0, 0, 0))
751 			return -EIO;
752 
753 	return 0;
754 }
755 #endif
756 
757 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
758 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
759 
760 module_param_array(index, int, NULL, S_IRUGO);
761 MODULE_PARM_DESC(index, "Index value for msnd_pinnacle soundcard.");
762 module_param_array(id, charp, NULL, S_IRUGO);
763 MODULE_PARM_DESC(id, "ID string for msnd_pinnacle soundcard.");
764 
765 static long io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
766 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
767 static long mem[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
768 
769 #ifndef MSND_CLASSIC
770 static long cfg[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
771 
772 /* Extra Peripheral Configuration (Default: Disable) */
773 static long ide_io0[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
774 static long ide_io1[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
775 static int ide_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
776 
777 static long joystick_io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
778 /* If we have the digital daugherboard... */
779 static int digital[SNDRV_CARDS];
780 
781 /* Extra Peripheral Configuration */
782 static int reset[SNDRV_CARDS];
783 #endif
784 
785 static int write_ndelay[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = 1 };
786 
787 static int calibrate_signal;
788 
789 #ifdef CONFIG_PNP
790 static bool isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
791 module_param_array(isapnp, bool, NULL, 0444);
792 MODULE_PARM_DESC(isapnp, "ISA PnP detection for specified soundcard.");
793 #define has_isapnp(x) isapnp[x]
794 #else
795 #define has_isapnp(x) 0
796 #endif
797 
798 MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
799 MODULE_DESCRIPTION("Turtle Beach " LONGNAME " Linux Driver");
800 MODULE_LICENSE("GPL");
801 MODULE_FIRMWARE(INITCODEFILE);
802 MODULE_FIRMWARE(PERMCODEFILE);
803 
804 module_param_hw_array(io, long, ioport, NULL, S_IRUGO);
805 MODULE_PARM_DESC(io, "IO port #");
806 module_param_hw_array(irq, int, irq, NULL, S_IRUGO);
807 module_param_hw_array(mem, long, iomem, NULL, S_IRUGO);
808 module_param_array(write_ndelay, int, NULL, S_IRUGO);
809 module_param(calibrate_signal, int, S_IRUGO);
810 #ifndef MSND_CLASSIC
811 module_param_array(digital, int, NULL, S_IRUGO);
812 module_param_hw_array(cfg, long, ioport, NULL, S_IRUGO);
813 module_param_array(reset, int, 0, S_IRUGO);
814 module_param_hw_array(mpu_io, long, ioport, NULL, S_IRUGO);
815 module_param_hw_array(mpu_irq, int, irq, NULL, S_IRUGO);
816 module_param_hw_array(ide_io0, long, ioport, NULL, S_IRUGO);
817 module_param_hw_array(ide_io1, long, ioport, NULL, S_IRUGO);
818 module_param_hw_array(ide_irq, int, irq, NULL, S_IRUGO);
819 module_param_hw_array(joystick_io, long, ioport, NULL, S_IRUGO);
820 #endif
821 
822 
823 static int snd_msnd_isa_match(struct device *pdev, unsigned int i)
824 {
825 	if (io[i] == SNDRV_AUTO_PORT)
826 		return 0;
827 
828 	if (irq[i] == SNDRV_AUTO_PORT || mem[i] == SNDRV_AUTO_PORT) {
829 		printk(KERN_WARNING LOGNAME ": io, irq and mem must be set\n");
830 		return 0;
831 	}
832 
833 #ifdef MSND_CLASSIC
834 	if (!(io[i] == 0x290 ||
835 	      io[i] == 0x260 ||
836 	      io[i] == 0x250 ||
837 	      io[i] == 0x240 ||
838 	      io[i] == 0x230 ||
839 	      io[i] == 0x220 ||
840 	      io[i] == 0x210 ||
841 	      io[i] == 0x3e0)) {
842 		printk(KERN_ERR LOGNAME ": \"io\" - DSP I/O base must be set "
843 			" to 0x210, 0x220, 0x230, 0x240, 0x250, 0x260, 0x290, "
844 			"or 0x3E0\n");
845 		return 0;
846 	}
847 #else
848 	if (io[i] < 0x100 || io[i] > 0x3e0 || (io[i] % 0x10) != 0) {
849 		printk(KERN_ERR LOGNAME
850 			": \"io\" - DSP I/O base must within the range 0x100 "
851 			"to 0x3E0 and must be evenly divisible by 0x10\n");
852 		return 0;
853 	}
854 #endif /* MSND_CLASSIC */
855 
856 	if (!(irq[i] == 5 ||
857 	      irq[i] == 7 ||
858 	      irq[i] == 9 ||
859 	      irq[i] == 10 ||
860 	      irq[i] == 11 ||
861 	      irq[i] == 12)) {
862 		printk(KERN_ERR LOGNAME
863 			": \"irq\" - must be set to 5, 7, 9, 10, 11 or 12\n");
864 		return 0;
865 	}
866 
867 	if (!(mem[i] == 0xb0000 ||
868 	      mem[i] == 0xc8000 ||
869 	      mem[i] == 0xd0000 ||
870 	      mem[i] == 0xd8000 ||
871 	      mem[i] == 0xe0000 ||
872 	      mem[i] == 0xe8000)) {
873 		printk(KERN_ERR LOGNAME ": \"mem\" - must be set to "
874 		       "0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or "
875 		       "0xe8000\n");
876 		return 0;
877 	}
878 
879 #ifndef MSND_CLASSIC
880 	if (cfg[i] == SNDRV_AUTO_PORT) {
881 		printk(KERN_INFO LOGNAME ": Assuming PnP mode\n");
882 	} else if (cfg[i] != 0x250 && cfg[i] != 0x260 && cfg[i] != 0x270) {
883 		printk(KERN_INFO LOGNAME
884 			": Config port must be 0x250, 0x260 or 0x270 "
885 			"(or unspecified for PnP mode)\n");
886 		return 0;
887 	}
888 #endif /* MSND_CLASSIC */
889 
890 	return 1;
891 }
892 
893 static int snd_msnd_isa_probe(struct device *pdev, unsigned int idx)
894 {
895 	int err;
896 	struct snd_card *card;
897 	struct snd_msnd *chip;
898 
899 	if (has_isapnp(idx)
900 #ifndef MSND_CLASSIC
901 	    || cfg[idx] == SNDRV_AUTO_PORT
902 #endif
903 	    ) {
904 		printk(KERN_INFO LOGNAME ": Assuming PnP mode\n");
905 		return -ENODEV;
906 	}
907 
908 	err = snd_card_new(pdev, index[idx], id[idx], THIS_MODULE,
909 			   sizeof(struct snd_msnd), &card);
910 	if (err < 0)
911 		return err;
912 
913 	chip = card->private_data;
914 	chip->card = card;
915 
916 #ifdef MSND_CLASSIC
917 	switch (irq[idx]) {
918 	case 5:
919 		chip->irqid = HPIRQ_5; break;
920 	case 7:
921 		chip->irqid = HPIRQ_7; break;
922 	case 9:
923 		chip->irqid = HPIRQ_9; break;
924 	case 10:
925 		chip->irqid = HPIRQ_10; break;
926 	case 11:
927 		chip->irqid = HPIRQ_11; break;
928 	case 12:
929 		chip->irqid = HPIRQ_12; break;
930 	}
931 
932 	switch (mem[idx]) {
933 	case 0xb0000:
934 		chip->memid = HPMEM_B000; break;
935 	case 0xc8000:
936 		chip->memid = HPMEM_C800; break;
937 	case 0xd0000:
938 		chip->memid = HPMEM_D000; break;
939 	case 0xd8000:
940 		chip->memid = HPMEM_D800; break;
941 	case 0xe0000:
942 		chip->memid = HPMEM_E000; break;
943 	case 0xe8000:
944 		chip->memid = HPMEM_E800; break;
945 	}
946 #else
947 	printk(KERN_INFO LOGNAME ": Non-PnP mode: configuring at port 0x%lx\n",
948 			cfg[idx]);
949 
950 	if (!request_region(cfg[idx], 2, "Pinnacle/Fiji Config")) {
951 		printk(KERN_ERR LOGNAME ": Config port 0x%lx conflict\n",
952 			   cfg[idx]);
953 		snd_card_free(card);
954 		return -EIO;
955 	}
956 	if (reset[idx])
957 		if (snd_msnd_pinnacle_cfg_reset(cfg[idx])) {
958 			err = -EIO;
959 			goto cfg_error;
960 		}
961 
962 	/* DSP */
963 	err = snd_msnd_write_cfg_logical(cfg[idx], 0,
964 					 io[idx], 0,
965 					 irq[idx], mem[idx]);
966 
967 	if (err)
968 		goto cfg_error;
969 
970 	/* The following are Pinnacle specific */
971 
972 	/* MPU */
973 	if (mpu_io[idx] != SNDRV_AUTO_PORT
974 	    && mpu_irq[idx] != SNDRV_AUTO_IRQ) {
975 		printk(KERN_INFO LOGNAME
976 		       ": Configuring MPU to I/O 0x%lx IRQ %d\n",
977 		       mpu_io[idx], mpu_irq[idx]);
978 		err = snd_msnd_write_cfg_logical(cfg[idx], 1,
979 						 mpu_io[idx], 0,
980 						 mpu_irq[idx], 0);
981 
982 		if (err)
983 			goto cfg_error;
984 	}
985 
986 	/* IDE */
987 	if (ide_io0[idx] != SNDRV_AUTO_PORT
988 	    && ide_io1[idx] != SNDRV_AUTO_PORT
989 	    && ide_irq[idx] != SNDRV_AUTO_IRQ) {
990 		printk(KERN_INFO LOGNAME
991 		       ": Configuring IDE to I/O 0x%lx, 0x%lx IRQ %d\n",
992 		       ide_io0[idx], ide_io1[idx], ide_irq[idx]);
993 		err = snd_msnd_write_cfg_logical(cfg[idx], 2,
994 						 ide_io0[idx], ide_io1[idx],
995 						 ide_irq[idx], 0);
996 
997 		if (err)
998 			goto cfg_error;
999 	}
1000 
1001 	/* Joystick */
1002 	if (joystick_io[idx] != SNDRV_AUTO_PORT) {
1003 		printk(KERN_INFO LOGNAME
1004 		       ": Configuring joystick to I/O 0x%lx\n",
1005 		       joystick_io[idx]);
1006 		err = snd_msnd_write_cfg_logical(cfg[idx], 3,
1007 						 joystick_io[idx], 0,
1008 						 0, 0);
1009 
1010 		if (err)
1011 			goto cfg_error;
1012 	}
1013 	release_region(cfg[idx], 2);
1014 
1015 #endif /* MSND_CLASSIC */
1016 
1017 	set_default_audio_parameters(chip);
1018 #ifdef MSND_CLASSIC
1019 	chip->type = msndClassic;
1020 #else
1021 	chip->type = msndPinnacle;
1022 #endif
1023 	chip->io = io[idx];
1024 	chip->irq = irq[idx];
1025 	chip->base = mem[idx];
1026 
1027 	chip->calibrate_signal = calibrate_signal ? 1 : 0;
1028 	chip->recsrc = 0;
1029 	chip->dspq_data_buff = DSPQ_DATA_BUFF;
1030 	chip->dspq_buff_size = DSPQ_BUFF_SIZE;
1031 	if (write_ndelay[idx])
1032 		clear_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1033 	else
1034 		set_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1035 #ifndef MSND_CLASSIC
1036 	if (digital[idx])
1037 		set_bit(F_HAVEDIGITAL, &chip->flags);
1038 #endif
1039 	spin_lock_init(&chip->lock);
1040 	err = snd_msnd_probe(card);
1041 	if (err < 0) {
1042 		printk(KERN_ERR LOGNAME ": Probe failed\n");
1043 		snd_card_free(card);
1044 		return err;
1045 	}
1046 
1047 	err = snd_msnd_attach(card);
1048 	if (err < 0) {
1049 		printk(KERN_ERR LOGNAME ": Attach failed\n");
1050 		snd_card_free(card);
1051 		return err;
1052 	}
1053 	dev_set_drvdata(pdev, card);
1054 
1055 	return 0;
1056 
1057 #ifndef MSND_CLASSIC
1058 cfg_error:
1059 	release_region(cfg[idx], 2);
1060 	snd_card_free(card);
1061 	return err;
1062 #endif
1063 }
1064 
1065 static int snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
1066 {
1067 	snd_msnd_unload(dev_get_drvdata(pdev));
1068 	return 0;
1069 }
1070 
1071 static struct isa_driver snd_msnd_driver = {
1072 	.match		= snd_msnd_isa_match,
1073 	.probe		= snd_msnd_isa_probe,
1074 	.remove		= snd_msnd_isa_remove,
1075 	/* FIXME: suspend, resume */
1076 	.driver		= {
1077 		.name	= DEV_NAME
1078 	},
1079 };
1080 
1081 #ifdef CONFIG_PNP
1082 static int snd_msnd_pnp_detect(struct pnp_card_link *pcard,
1083 			       const struct pnp_card_device_id *pid)
1084 {
1085 	static int idx;
1086 	struct pnp_dev *pnp_dev;
1087 	struct pnp_dev *mpu_dev;
1088 	struct snd_card *card;
1089 	struct snd_msnd *chip;
1090 	int ret;
1091 
1092 	for ( ; idx < SNDRV_CARDS; idx++) {
1093 		if (has_isapnp(idx))
1094 			break;
1095 	}
1096 	if (idx >= SNDRV_CARDS)
1097 		return -ENODEV;
1098 
1099 	/*
1100 	 * Check that we still have room for another sound card ...
1101 	 */
1102 	pnp_dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
1103 	if (!pnp_dev)
1104 		return -ENODEV;
1105 
1106 	mpu_dev = pnp_request_card_device(pcard, pid->devs[1].id, NULL);
1107 	if (!mpu_dev)
1108 		return -ENODEV;
1109 
1110 	if (!pnp_is_active(pnp_dev) && pnp_activate_dev(pnp_dev) < 0) {
1111 		printk(KERN_INFO "msnd_pinnacle: device is inactive\n");
1112 		return -EBUSY;
1113 	}
1114 
1115 	if (!pnp_is_active(mpu_dev) && pnp_activate_dev(mpu_dev) < 0) {
1116 		printk(KERN_INFO "msnd_pinnacle: MPU device is inactive\n");
1117 		return -EBUSY;
1118 	}
1119 
1120 	/*
1121 	 * Create a new ALSA sound card entry, in anticipation
1122 	 * of detecting our hardware ...
1123 	 */
1124 	ret = snd_card_new(&pcard->card->dev,
1125 			   index[idx], id[idx], THIS_MODULE,
1126 			   sizeof(struct snd_msnd), &card);
1127 	if (ret < 0)
1128 		return ret;
1129 
1130 	chip = card->private_data;
1131 	chip->card = card;
1132 
1133 	/*
1134 	 * Read the correct parameters off the ISA PnP bus ...
1135 	 */
1136 	io[idx] = pnp_port_start(pnp_dev, 0);
1137 	irq[idx] = pnp_irq(pnp_dev, 0);
1138 	mem[idx] = pnp_mem_start(pnp_dev, 0);
1139 	mpu_io[idx] = pnp_port_start(mpu_dev, 0);
1140 	mpu_irq[idx] = pnp_irq(mpu_dev, 0);
1141 
1142 	set_default_audio_parameters(chip);
1143 #ifdef MSND_CLASSIC
1144 	chip->type = msndClassic;
1145 #else
1146 	chip->type = msndPinnacle;
1147 #endif
1148 	chip->io = io[idx];
1149 	chip->irq = irq[idx];
1150 	chip->base = mem[idx];
1151 
1152 	chip->calibrate_signal = calibrate_signal ? 1 : 0;
1153 	chip->recsrc = 0;
1154 	chip->dspq_data_buff = DSPQ_DATA_BUFF;
1155 	chip->dspq_buff_size = DSPQ_BUFF_SIZE;
1156 	if (write_ndelay[idx])
1157 		clear_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1158 	else
1159 		set_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1160 #ifndef MSND_CLASSIC
1161 	if (digital[idx])
1162 		set_bit(F_HAVEDIGITAL, &chip->flags);
1163 #endif
1164 	spin_lock_init(&chip->lock);
1165 	ret = snd_msnd_probe(card);
1166 	if (ret < 0) {
1167 		printk(KERN_ERR LOGNAME ": Probe failed\n");
1168 		goto _release_card;
1169 	}
1170 
1171 	ret = snd_msnd_attach(card);
1172 	if (ret < 0) {
1173 		printk(KERN_ERR LOGNAME ": Attach failed\n");
1174 		goto _release_card;
1175 	}
1176 
1177 	pnp_set_card_drvdata(pcard, card);
1178 	++idx;
1179 	return 0;
1180 
1181 _release_card:
1182 	snd_card_free(card);
1183 	return ret;
1184 }
1185 
1186 static void snd_msnd_pnp_remove(struct pnp_card_link *pcard)
1187 {
1188 	snd_msnd_unload(pnp_get_card_drvdata(pcard));
1189 	pnp_set_card_drvdata(pcard, NULL);
1190 }
1191 
1192 static int isa_registered;
1193 static int pnp_registered;
1194 
1195 static const struct pnp_card_device_id msnd_pnpids[] = {
1196 	/* Pinnacle PnP */
1197 	{ .id = "BVJ0440", .devs = { { "TBS0000" }, { "TBS0001" } } },
1198 	{ .id = "" }	/* end */
1199 };
1200 
1201 MODULE_DEVICE_TABLE(pnp_card, msnd_pnpids);
1202 
1203 static struct pnp_card_driver msnd_pnpc_driver = {
1204 	.flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
1205 	.name = "msnd_pinnacle",
1206 	.id_table = msnd_pnpids,
1207 	.probe = snd_msnd_pnp_detect,
1208 	.remove = snd_msnd_pnp_remove,
1209 };
1210 #endif /* CONFIG_PNP */
1211 
1212 static int __init snd_msnd_init(void)
1213 {
1214 	int err;
1215 
1216 	err = isa_register_driver(&snd_msnd_driver, SNDRV_CARDS);
1217 #ifdef CONFIG_PNP
1218 	if (!err)
1219 		isa_registered = 1;
1220 
1221 	err = pnp_register_card_driver(&msnd_pnpc_driver);
1222 	if (!err)
1223 		pnp_registered = 1;
1224 
1225 	if (isa_registered)
1226 		err = 0;
1227 #endif
1228 	return err;
1229 }
1230 
1231 static void __exit snd_msnd_exit(void)
1232 {
1233 #ifdef CONFIG_PNP
1234 	if (pnp_registered)
1235 		pnp_unregister_card_driver(&msnd_pnpc_driver);
1236 	if (isa_registered)
1237 #endif
1238 		isa_unregister_driver(&snd_msnd_driver);
1239 }
1240 
1241 module_init(snd_msnd_init);
1242 module_exit(snd_msnd_exit);
1243 
1244