xref: /openbmc/linux/sound/isa/msnd/msnd_pinnacle.c (revision 12eb4683)
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, NULL);
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 	if (chip->mappedbase)
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_array(io, long, NULL, S_IRUGO);
805 MODULE_PARM_DESC(io, "IO port #");
806 module_param_array(irq, int, NULL, S_IRUGO);
807 module_param_array(mem, long, 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_array(cfg, long, NULL, S_IRUGO);
813 module_param_array(reset, int, 0, S_IRUGO);
814 module_param_array(mpu_io, long, NULL, S_IRUGO);
815 module_param_array(mpu_irq, int, NULL, S_IRUGO);
816 module_param_array(ide_io0, long, NULL, S_IRUGO);
817 module_param_array(ide_io1, long, NULL, S_IRUGO);
818 module_param_array(ide_irq, int, NULL, S_IRUGO);
819 module_param_array(joystick_io, long, 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_create(index[idx], id[idx], THIS_MODULE,
909 			      sizeof(struct snd_msnd), &card);
910 	if (err < 0)
911 		return err;
912 
913 	snd_card_set_dev(card, pdev);
914 	chip = card->private_data;
915 	chip->card = card;
916 
917 #ifdef MSND_CLASSIC
918 	switch (irq[idx]) {
919 	case 5:
920 		chip->irqid = HPIRQ_5; break;
921 	case 7:
922 		chip->irqid = HPIRQ_7; break;
923 	case 9:
924 		chip->irqid = HPIRQ_9; break;
925 	case 10:
926 		chip->irqid = HPIRQ_10; break;
927 	case 11:
928 		chip->irqid = HPIRQ_11; break;
929 	case 12:
930 		chip->irqid = HPIRQ_12; break;
931 	}
932 
933 	switch (mem[idx]) {
934 	case 0xb0000:
935 		chip->memid = HPMEM_B000; break;
936 	case 0xc8000:
937 		chip->memid = HPMEM_C800; break;
938 	case 0xd0000:
939 		chip->memid = HPMEM_D000; break;
940 	case 0xd8000:
941 		chip->memid = HPMEM_D800; break;
942 	case 0xe0000:
943 		chip->memid = HPMEM_E000; break;
944 	case 0xe8000:
945 		chip->memid = HPMEM_E800; break;
946 	}
947 #else
948 	printk(KERN_INFO LOGNAME ": Non-PnP mode: configuring at port 0x%lx\n",
949 			cfg[idx]);
950 
951 	if (!request_region(cfg[idx], 2, "Pinnacle/Fiji Config")) {
952 		printk(KERN_ERR LOGNAME ": Config port 0x%lx conflict\n",
953 			   cfg[idx]);
954 		snd_card_free(card);
955 		return -EIO;
956 	}
957 	if (reset[idx])
958 		if (snd_msnd_pinnacle_cfg_reset(cfg[idx])) {
959 			err = -EIO;
960 			goto cfg_error;
961 		}
962 
963 	/* DSP */
964 	err = snd_msnd_write_cfg_logical(cfg[idx], 0,
965 					 io[idx], 0,
966 					 irq[idx], mem[idx]);
967 
968 	if (err)
969 		goto cfg_error;
970 
971 	/* The following are Pinnacle specific */
972 
973 	/* MPU */
974 	if (mpu_io[idx] != SNDRV_AUTO_PORT
975 	    && mpu_irq[idx] != SNDRV_AUTO_IRQ) {
976 		printk(KERN_INFO LOGNAME
977 		       ": Configuring MPU to I/O 0x%lx IRQ %d\n",
978 		       mpu_io[idx], mpu_irq[idx]);
979 		err = snd_msnd_write_cfg_logical(cfg[idx], 1,
980 						 mpu_io[idx], 0,
981 						 mpu_irq[idx], 0);
982 
983 		if (err)
984 			goto cfg_error;
985 	}
986 
987 	/* IDE */
988 	if (ide_io0[idx] != SNDRV_AUTO_PORT
989 	    && ide_io1[idx] != SNDRV_AUTO_PORT
990 	    && ide_irq[idx] != SNDRV_AUTO_IRQ) {
991 		printk(KERN_INFO LOGNAME
992 		       ": Configuring IDE to I/O 0x%lx, 0x%lx IRQ %d\n",
993 		       ide_io0[idx], ide_io1[idx], ide_irq[idx]);
994 		err = snd_msnd_write_cfg_logical(cfg[idx], 2,
995 						 ide_io0[idx], ide_io1[idx],
996 						 ide_irq[idx], 0);
997 
998 		if (err)
999 			goto cfg_error;
1000 	}
1001 
1002 	/* Joystick */
1003 	if (joystick_io[idx] != SNDRV_AUTO_PORT) {
1004 		printk(KERN_INFO LOGNAME
1005 		       ": Configuring joystick to I/O 0x%lx\n",
1006 		       joystick_io[idx]);
1007 		err = snd_msnd_write_cfg_logical(cfg[idx], 3,
1008 						 joystick_io[idx], 0,
1009 						 0, 0);
1010 
1011 		if (err)
1012 			goto cfg_error;
1013 	}
1014 	release_region(cfg[idx], 2);
1015 
1016 #endif /* MSND_CLASSIC */
1017 
1018 	set_default_audio_parameters(chip);
1019 #ifdef MSND_CLASSIC
1020 	chip->type = msndClassic;
1021 #else
1022 	chip->type = msndPinnacle;
1023 #endif
1024 	chip->io = io[idx];
1025 	chip->irq = irq[idx];
1026 	chip->base = mem[idx];
1027 
1028 	chip->calibrate_signal = calibrate_signal ? 1 : 0;
1029 	chip->recsrc = 0;
1030 	chip->dspq_data_buff = DSPQ_DATA_BUFF;
1031 	chip->dspq_buff_size = DSPQ_BUFF_SIZE;
1032 	if (write_ndelay[idx])
1033 		clear_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1034 	else
1035 		set_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1036 #ifndef MSND_CLASSIC
1037 	if (digital[idx])
1038 		set_bit(F_HAVEDIGITAL, &chip->flags);
1039 #endif
1040 	spin_lock_init(&chip->lock);
1041 	err = snd_msnd_probe(card);
1042 	if (err < 0) {
1043 		printk(KERN_ERR LOGNAME ": Probe failed\n");
1044 		snd_card_free(card);
1045 		return err;
1046 	}
1047 
1048 	err = snd_msnd_attach(card);
1049 	if (err < 0) {
1050 		printk(KERN_ERR LOGNAME ": Attach failed\n");
1051 		snd_card_free(card);
1052 		return err;
1053 	}
1054 	dev_set_drvdata(pdev, card);
1055 
1056 	return 0;
1057 
1058 #ifndef MSND_CLASSIC
1059 cfg_error:
1060 	release_region(cfg[idx], 2);
1061 	snd_card_free(card);
1062 	return err;
1063 #endif
1064 }
1065 
1066 static int snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
1067 {
1068 	snd_msnd_unload(dev_get_drvdata(pdev));
1069 	return 0;
1070 }
1071 
1072 static struct isa_driver snd_msnd_driver = {
1073 	.match		= snd_msnd_isa_match,
1074 	.probe		= snd_msnd_isa_probe,
1075 	.remove		= snd_msnd_isa_remove,
1076 	/* FIXME: suspend, resume */
1077 	.driver		= {
1078 		.name	= DEV_NAME
1079 	},
1080 };
1081 
1082 #ifdef CONFIG_PNP
1083 static int snd_msnd_pnp_detect(struct pnp_card_link *pcard,
1084 			       const struct pnp_card_device_id *pid)
1085 {
1086 	static int idx;
1087 	struct pnp_dev *pnp_dev;
1088 	struct pnp_dev *mpu_dev;
1089 	struct snd_card *card;
1090 	struct snd_msnd *chip;
1091 	int ret;
1092 
1093 	for ( ; idx < SNDRV_CARDS; idx++) {
1094 		if (has_isapnp(idx))
1095 			break;
1096 	}
1097 	if (idx >= SNDRV_CARDS)
1098 		return -ENODEV;
1099 
1100 	/*
1101 	 * Check that we still have room for another sound card ...
1102 	 */
1103 	pnp_dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
1104 	if (!pnp_dev)
1105 		return -ENODEV;
1106 
1107 	mpu_dev = pnp_request_card_device(pcard, pid->devs[1].id, NULL);
1108 	if (!mpu_dev)
1109 		return -ENODEV;
1110 
1111 	if (!pnp_is_active(pnp_dev) && pnp_activate_dev(pnp_dev) < 0) {
1112 		printk(KERN_INFO "msnd_pinnacle: device is inactive\n");
1113 		return -EBUSY;
1114 	}
1115 
1116 	if (!pnp_is_active(mpu_dev) && pnp_activate_dev(mpu_dev) < 0) {
1117 		printk(KERN_INFO "msnd_pinnacle: MPU device is inactive\n");
1118 		return -EBUSY;
1119 	}
1120 
1121 	/*
1122 	 * Create a new ALSA sound card entry, in anticipation
1123 	 * of detecting our hardware ...
1124 	 */
1125 	ret = snd_card_create(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 	snd_card_set_dev(card, &pcard->card->dev);
1133 
1134 	/*
1135 	 * Read the correct parameters off the ISA PnP bus ...
1136 	 */
1137 	io[idx] = pnp_port_start(pnp_dev, 0);
1138 	irq[idx] = pnp_irq(pnp_dev, 0);
1139 	mem[idx] = pnp_mem_start(pnp_dev, 0);
1140 	mpu_io[idx] = pnp_port_start(mpu_dev, 0);
1141 	mpu_irq[idx] = pnp_irq(mpu_dev, 0);
1142 
1143 	set_default_audio_parameters(chip);
1144 #ifdef MSND_CLASSIC
1145 	chip->type = msndClassic;
1146 #else
1147 	chip->type = msndPinnacle;
1148 #endif
1149 	chip->io = io[idx];
1150 	chip->irq = irq[idx];
1151 	chip->base = mem[idx];
1152 
1153 	chip->calibrate_signal = calibrate_signal ? 1 : 0;
1154 	chip->recsrc = 0;
1155 	chip->dspq_data_buff = DSPQ_DATA_BUFF;
1156 	chip->dspq_buff_size = DSPQ_BUFF_SIZE;
1157 	if (write_ndelay[idx])
1158 		clear_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1159 	else
1160 		set_bit(F_DISABLE_WRITE_NDELAY, &chip->flags);
1161 #ifndef MSND_CLASSIC
1162 	if (digital[idx])
1163 		set_bit(F_HAVEDIGITAL, &chip->flags);
1164 #endif
1165 	spin_lock_init(&chip->lock);
1166 	ret = snd_msnd_probe(card);
1167 	if (ret < 0) {
1168 		printk(KERN_ERR LOGNAME ": Probe failed\n");
1169 		goto _release_card;
1170 	}
1171 
1172 	ret = snd_msnd_attach(card);
1173 	if (ret < 0) {
1174 		printk(KERN_ERR LOGNAME ": Attach failed\n");
1175 		goto _release_card;
1176 	}
1177 
1178 	pnp_set_card_drvdata(pcard, card);
1179 	++idx;
1180 	return 0;
1181 
1182 _release_card:
1183 	snd_card_free(card);
1184 	return ret;
1185 }
1186 
1187 static void snd_msnd_pnp_remove(struct pnp_card_link *pcard)
1188 {
1189 	snd_msnd_unload(pnp_get_card_drvdata(pcard));
1190 	pnp_set_card_drvdata(pcard, NULL);
1191 }
1192 
1193 static int isa_registered;
1194 static int pnp_registered;
1195 
1196 static struct pnp_card_device_id msnd_pnpids[] = {
1197 	/* Pinnacle PnP */
1198 	{ .id = "BVJ0440", .devs = { { "TBS0000" }, { "TBS0001" } } },
1199 	{ .id = "" }	/* end */
1200 };
1201 
1202 MODULE_DEVICE_TABLE(pnp_card, msnd_pnpids);
1203 
1204 static struct pnp_card_driver msnd_pnpc_driver = {
1205 	.flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
1206 	.name = "msnd_pinnacle",
1207 	.id_table = msnd_pnpids,
1208 	.probe = snd_msnd_pnp_detect,
1209 	.remove = snd_msnd_pnp_remove,
1210 };
1211 #endif /* CONFIG_PNP */
1212 
1213 static int __init snd_msnd_init(void)
1214 {
1215 	int err;
1216 
1217 	err = isa_register_driver(&snd_msnd_driver, SNDRV_CARDS);
1218 #ifdef CONFIG_PNP
1219 	if (!err)
1220 		isa_registered = 1;
1221 
1222 	err = pnp_register_card_driver(&msnd_pnpc_driver);
1223 	if (!err)
1224 		pnp_registered = 1;
1225 
1226 	if (isa_registered)
1227 		err = 0;
1228 #endif
1229 	return err;
1230 }
1231 
1232 static void __exit snd_msnd_exit(void)
1233 {
1234 #ifdef CONFIG_PNP
1235 	if (pnp_registered)
1236 		pnp_unregister_card_driver(&msnd_pnpc_driver);
1237 	if (isa_registered)
1238 #endif
1239 		isa_unregister_driver(&snd_msnd_driver);
1240 }
1241 
1242 module_init(snd_msnd_init);
1243 module_exit(snd_msnd_exit);
1244 
1245