1 /*
2     card-opti92x-ad1848.c - driver for OPTi 82c92x based soundcards.
3     Copyright (C) 1998-2000 by Massimo Piccioni <dafastidio@libero.it>
4 
5     Part of this code was developed at the Italian Ministry of Air Defence,
6     Sixth Division (oh, che pace ...), Rome.
7 
8     Thanks to Maria Grazia Pollarini, Salvatore Vassallo.
9 
10     This program is free software; you can redistribute it and/or modify
11     it under the terms of the GNU General Public License as published by
12     the Free Software Foundation; either version 2 of the License, or
13     (at your option) any later version.
14 
15     This program is distributed in the hope that it will be useful,
16     but WITHOUT ANY WARRANTY; without even the implied warranty of
17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18     GNU General Public License for more details.
19 
20     You should have received a copy of the GNU General Public License
21     along with this program; if not, write to the Free Software
22     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23 */
24 
25 
26 #include <linux/init.h>
27 #include <linux/err.h>
28 #include <linux/isa.h>
29 #include <linux/delay.h>
30 #include <linux/pnp.h>
31 #include <linux/module.h>
32 #include <linux/io.h>
33 #include <asm/dma.h>
34 #include <sound/core.h>
35 #include <sound/tlv.h>
36 #include <sound/wss.h>
37 #include <sound/mpu401.h>
38 #include <sound/opl3.h>
39 #ifndef OPTi93X
40 #include <sound/opl4.h>
41 #endif
42 #define SNDRV_LEGACY_FIND_FREE_IOPORT
43 #define SNDRV_LEGACY_FIND_FREE_IRQ
44 #define SNDRV_LEGACY_FIND_FREE_DMA
45 #include <sound/initval.h>
46 
47 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
48 MODULE_LICENSE("GPL");
49 #ifdef OPTi93X
50 MODULE_DESCRIPTION("OPTi93X");
51 MODULE_SUPPORTED_DEVICE("{{OPTi,82C931/3}}");
52 #else	/* OPTi93X */
53 #ifdef CS4231
54 MODULE_DESCRIPTION("OPTi92X - CS4231");
55 MODULE_SUPPORTED_DEVICE("{{OPTi,82C924 (CS4231)},"
56 		"{OPTi,82C925 (CS4231)}}");
57 #else	/* CS4231 */
58 MODULE_DESCRIPTION("OPTi92X - AD1848");
59 MODULE_SUPPORTED_DEVICE("{{OPTi,82C924 (AD1848)},"
60 		"{OPTi,82C925 (AD1848)},"
61 	        "{OAK,Mozart}}");
62 #endif	/* CS4231 */
63 #endif	/* OPTi93X */
64 
65 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
66 static char *id = SNDRV_DEFAULT_STR1;		/* ID for this card */
67 //static bool enable = SNDRV_DEFAULT_ENABLE1;	/* Enable this card */
68 #ifdef CONFIG_PNP
69 static bool isapnp = true;			/* Enable ISA PnP detection */
70 #endif
71 static long port = SNDRV_DEFAULT_PORT1; 	/* 0x530,0xe80,0xf40,0x604 */
72 static long mpu_port = SNDRV_DEFAULT_PORT1;	/* 0x300,0x310,0x320,0x330 */
73 static long fm_port = SNDRV_DEFAULT_PORT1;	/* 0x388 */
74 static int irq = SNDRV_DEFAULT_IRQ1;		/* 5,7,9,10,11 */
75 static int mpu_irq = SNDRV_DEFAULT_IRQ1;	/* 5,7,9,10 */
76 static int dma1 = SNDRV_DEFAULT_DMA1;		/* 0,1,3 */
77 #if defined(CS4231) || defined(OPTi93X)
78 static int dma2 = SNDRV_DEFAULT_DMA1;		/* 0,1,3 */
79 #endif	/* CS4231 || OPTi93X */
80 
81 module_param(index, int, 0444);
82 MODULE_PARM_DESC(index, "Index value for opti9xx based soundcard.");
83 module_param(id, charp, 0444);
84 MODULE_PARM_DESC(id, "ID string for opti9xx based soundcard.");
85 //module_param(enable, bool, 0444);
86 //MODULE_PARM_DESC(enable, "Enable opti9xx soundcard.");
87 #ifdef CONFIG_PNP
88 module_param(isapnp, bool, 0444);
89 MODULE_PARM_DESC(isapnp, "Enable ISA PnP detection for specified soundcard.");
90 #endif
91 module_param_hw(port, long, ioport, 0444);
92 MODULE_PARM_DESC(port, "WSS port # for opti9xx driver.");
93 module_param_hw(mpu_port, long, ioport, 0444);
94 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for opti9xx driver.");
95 module_param_hw(fm_port, long, ioport, 0444);
96 MODULE_PARM_DESC(fm_port, "FM port # for opti9xx driver.");
97 module_param_hw(irq, int, irq, 0444);
98 MODULE_PARM_DESC(irq, "WSS irq # for opti9xx driver.");
99 module_param_hw(mpu_irq, int, irq, 0444);
100 MODULE_PARM_DESC(mpu_irq, "MPU-401 irq # for opti9xx driver.");
101 module_param_hw(dma1, int, dma, 0444);
102 MODULE_PARM_DESC(dma1, "1st dma # for opti9xx driver.");
103 #if defined(CS4231) || defined(OPTi93X)
104 module_param_hw(dma2, int, dma, 0444);
105 MODULE_PARM_DESC(dma2, "2nd dma # for opti9xx driver.");
106 #endif	/* CS4231 || OPTi93X */
107 
108 #define OPTi9XX_HW_82C928	1
109 #define OPTi9XX_HW_82C929	2
110 #define OPTi9XX_HW_82C924	3
111 #define OPTi9XX_HW_82C925	4
112 #define OPTi9XX_HW_82C930	5
113 #define OPTi9XX_HW_82C931	6
114 #define OPTi9XX_HW_82C933	7
115 #define OPTi9XX_HW_LAST		OPTi9XX_HW_82C933
116 
117 #define OPTi9XX_MC_REG(n)	n
118 
119 #ifdef OPTi93X
120 
121 #define OPTi93X_STATUS			0x02
122 #define OPTi93X_PORT(chip, r)		((chip)->port + OPTi93X_##r)
123 
124 #define OPTi93X_IRQ_PLAYBACK		0x04
125 #define OPTi93X_IRQ_CAPTURE		0x08
126 
127 #endif /* OPTi93X */
128 
129 struct snd_opti9xx {
130 	unsigned short hardware;
131 	unsigned char password;
132 	char name[7];
133 
134 	unsigned long mc_base;
135 	struct resource *res_mc_base;
136 	unsigned long mc_base_size;
137 #ifdef OPTi93X
138 	unsigned long mc_indir_index;
139 	struct resource *res_mc_indir;
140 #endif	/* OPTi93X */
141 	struct snd_wss *codec;
142 	unsigned long pwd_reg;
143 
144 	spinlock_t lock;
145 
146 	long wss_base;
147 	int irq;
148 };
149 
150 static int snd_opti9xx_pnp_is_probed;
151 
152 #ifdef CONFIG_PNP
153 
154 static const struct pnp_card_device_id snd_opti9xx_pnpids[] = {
155 #ifndef OPTi93X
156 	/* OPTi 82C924 */
157 	{ .id = "OPT0924",
158 	  .devs = { { "OPT0000" }, { "OPT0002" }, { "OPT0005" } },
159 	  .driver_data = 0x0924 },
160 	/* OPTi 82C925 */
161 	{ .id = "OPT0925",
162 	  .devs = { { "OPT9250" }, { "OPT0002" }, { "OPT0005" } },
163 	  .driver_data = 0x0925 },
164 #else
165 	/* OPTi 82C931/3 */
166 	{ .id = "OPT0931", .devs = { { "OPT9310" }, { "OPT0002" } },
167 	  .driver_data = 0x0931 },
168 #endif	/* OPTi93X */
169 	{ .id = "" }
170 };
171 
172 MODULE_DEVICE_TABLE(pnp_card, snd_opti9xx_pnpids);
173 
174 #endif	/* CONFIG_PNP */
175 
176 #define DEV_NAME KBUILD_MODNAME
177 
178 static char * snd_opti9xx_names[] = {
179 	"unknown",
180 	"82C928",	"82C929",
181 	"82C924",	"82C925",
182 	"82C930",	"82C931",	"82C933"
183 };
184 
185 static int snd_opti9xx_init(struct snd_opti9xx *chip,
186 			    unsigned short hardware)
187 {
188 	static int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};
189 
190 	chip->hardware = hardware;
191 	strcpy(chip->name, snd_opti9xx_names[hardware]);
192 
193 	spin_lock_init(&chip->lock);
194 
195 	chip->irq = -1;
196 
197 #ifndef OPTi93X
198 #ifdef CONFIG_PNP
199 	if (isapnp && chip->mc_base)
200 		/* PnP resource gives the least 10 bits */
201 		chip->mc_base |= 0xc00;
202 	else
203 #endif	/* CONFIG_PNP */
204 	{
205 		chip->mc_base = 0xf8c;
206 		chip->mc_base_size = opti9xx_mc_size[hardware];
207 	}
208 #else
209 		chip->mc_base_size = opti9xx_mc_size[hardware];
210 #endif
211 
212 	switch (hardware) {
213 #ifndef OPTi93X
214 	case OPTi9XX_HW_82C928:
215 	case OPTi9XX_HW_82C929:
216 		chip->password = (hardware == OPTi9XX_HW_82C928) ? 0xe2 : 0xe3;
217 		chip->pwd_reg = 3;
218 		break;
219 
220 	case OPTi9XX_HW_82C924:
221 	case OPTi9XX_HW_82C925:
222 		chip->password = 0xe5;
223 		chip->pwd_reg = 3;
224 		break;
225 #else	/* OPTi93X */
226 
227 	case OPTi9XX_HW_82C930:
228 	case OPTi9XX_HW_82C931:
229 	case OPTi9XX_HW_82C933:
230 		chip->mc_base = (hardware == OPTi9XX_HW_82C930) ? 0xf8f : 0xf8d;
231 		if (!chip->mc_indir_index)
232 			chip->mc_indir_index = 0xe0e;
233 		chip->password = 0xe4;
234 		chip->pwd_reg = 0;
235 		break;
236 #endif	/* OPTi93X */
237 
238 	default:
239 		snd_printk(KERN_ERR "chip %d not supported\n", hardware);
240 		return -ENODEV;
241 	}
242 	return 0;
243 }
244 
245 static unsigned char snd_opti9xx_read(struct snd_opti9xx *chip,
246 				      unsigned char reg)
247 {
248 	unsigned long flags;
249 	unsigned char retval = 0xff;
250 
251 	spin_lock_irqsave(&chip->lock, flags);
252 	outb(chip->password, chip->mc_base + chip->pwd_reg);
253 
254 	switch (chip->hardware) {
255 #ifndef OPTi93X
256 	case OPTi9XX_HW_82C924:
257 	case OPTi9XX_HW_82C925:
258 		if (reg > 7) {
259 			outb(reg, chip->mc_base + 8);
260 			outb(chip->password, chip->mc_base + chip->pwd_reg);
261 			retval = inb(chip->mc_base + 9);
262 			break;
263 		}
264 		/* Fall through */
265 
266 	case OPTi9XX_HW_82C928:
267 	case OPTi9XX_HW_82C929:
268 		retval = inb(chip->mc_base + reg);
269 		break;
270 #else	/* OPTi93X */
271 
272 	case OPTi9XX_HW_82C930:
273 	case OPTi9XX_HW_82C931:
274 	case OPTi9XX_HW_82C933:
275 		outb(reg, chip->mc_indir_index);
276 		outb(chip->password, chip->mc_base + chip->pwd_reg);
277 		retval = inb(chip->mc_indir_index + 1);
278 		break;
279 #endif	/* OPTi93X */
280 
281 	default:
282 		snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
283 	}
284 
285 	spin_unlock_irqrestore(&chip->lock, flags);
286 	return retval;
287 }
288 
289 static void snd_opti9xx_write(struct snd_opti9xx *chip, unsigned char reg,
290 			      unsigned char value)
291 {
292 	unsigned long flags;
293 
294 	spin_lock_irqsave(&chip->lock, flags);
295 	outb(chip->password, chip->mc_base + chip->pwd_reg);
296 
297 	switch (chip->hardware) {
298 #ifndef OPTi93X
299 	case OPTi9XX_HW_82C924:
300 	case OPTi9XX_HW_82C925:
301 		if (reg > 7) {
302 			outb(reg, chip->mc_base + 8);
303 			outb(chip->password, chip->mc_base + chip->pwd_reg);
304 			outb(value, chip->mc_base + 9);
305 			break;
306 		}
307 		/* Fall through */
308 
309 	case OPTi9XX_HW_82C928:
310 	case OPTi9XX_HW_82C929:
311 		outb(value, chip->mc_base + reg);
312 		break;
313 #else	/* OPTi93X */
314 
315 	case OPTi9XX_HW_82C930:
316 	case OPTi9XX_HW_82C931:
317 	case OPTi9XX_HW_82C933:
318 		outb(reg, chip->mc_indir_index);
319 		outb(chip->password, chip->mc_base + chip->pwd_reg);
320 		outb(value, chip->mc_indir_index + 1);
321 		break;
322 #endif	/* OPTi93X */
323 
324 	default:
325 		snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
326 	}
327 
328 	spin_unlock_irqrestore(&chip->lock, flags);
329 }
330 
331 
332 #define snd_opti9xx_write_mask(chip, reg, value, mask)	\
333 	snd_opti9xx_write(chip, reg,			\
334 		(snd_opti9xx_read(chip, reg) & ~(mask)) | ((value) & (mask)))
335 
336 
337 static int snd_opti9xx_configure(struct snd_opti9xx *chip,
338 					   long port,
339 					   int irq, int dma1, int dma2,
340 					   long mpu_port, int mpu_irq)
341 {
342 	unsigned char wss_base_bits;
343 	unsigned char irq_bits;
344 	unsigned char dma_bits;
345 	unsigned char mpu_port_bits = 0;
346 	unsigned char mpu_irq_bits;
347 
348 	switch (chip->hardware) {
349 #ifndef OPTi93X
350 	case OPTi9XX_HW_82C924:
351 		/* opti 929 mode (?), OPL3 clock output, audio enable */
352 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0xf0, 0xfc);
353 		/* enable wave audio */
354 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x02);
355 		/* Fall through */
356 
357 	case OPTi9XX_HW_82C925:
358 		/* enable WSS mode */
359 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
360 		/* OPL3 FM synthesis */
361 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2), 0x00, 0x20);
362 		/* disable Sound Blaster IRQ and DMA */
363 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
364 #ifdef CS4231
365 		/* cs4231/4248 fix enabled */
366 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
367 #else
368 		/* cs4231/4248 fix disabled */
369 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x00, 0x02);
370 #endif	/* CS4231 */
371 		break;
372 
373 	case OPTi9XX_HW_82C928:
374 	case OPTi9XX_HW_82C929:
375 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
376 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2), 0x00, 0x20);
377 		/*
378 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xa2, 0xae);
379 		*/
380 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0x00, 0x0c);
381 #ifdef CS4231
382 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
383 #else
384 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x00, 0x02);
385 #endif	/* CS4231 */
386 		break;
387 
388 #else	/* OPTi93X */
389 	case OPTi9XX_HW_82C931:
390 		/* disable 3D sound (set GPIO1 as output, low) */
391 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(20), 0x04, 0x0c);
392 	case OPTi9XX_HW_82C933: /* FALL THROUGH */
393 		/*
394 		 * The BTC 1817DW has QS1000 wavetable which is connected
395 		 * to the serial digital input of the OPTI931.
396 		 */
397 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(21), 0x82, 0xff);
398 		/*
399 		 * This bit sets OPTI931 to automaticaly select FM
400 		 * or digital input signal.
401 		 */
402 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(26), 0x01, 0x01);
403 	case OPTi9XX_HW_82C930: /* FALL THROUGH */
404 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x03);
405 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0x00, 0xff);
406 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0x10 |
407 			(chip->hardware == OPTi9XX_HW_82C930 ? 0x00 : 0x04),
408 			0x34);
409 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x20, 0xbf);
410 		break;
411 #endif	/* OPTi93X */
412 
413 	default:
414 		snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
415 		return -EINVAL;
416 	}
417 
418 	/* PnP resource says it decodes only 10 bits of address */
419 	switch (port & 0x3ff) {
420 	case 0x130:
421 		chip->wss_base = 0x530;
422 		wss_base_bits = 0x00;
423 		break;
424 	case 0x204:
425 		chip->wss_base = 0x604;
426 		wss_base_bits = 0x03;
427 		break;
428 	case 0x280:
429 		chip->wss_base = 0xe80;
430 		wss_base_bits = 0x01;
431 		break;
432 	case 0x340:
433 		chip->wss_base = 0xf40;
434 		wss_base_bits = 0x02;
435 		break;
436 	default:
437 		snd_printk(KERN_WARNING "WSS port 0x%lx not valid\n", port);
438 		goto __skip_base;
439 	}
440 	snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), wss_base_bits << 4, 0x30);
441 
442 __skip_base:
443 	switch (irq) {
444 //#ifdef OPTi93X
445 	case 5:
446 		irq_bits = 0x05;
447 		break;
448 //#endif	/* OPTi93X */
449 	case 7:
450 		irq_bits = 0x01;
451 		break;
452 	case 9:
453 		irq_bits = 0x02;
454 		break;
455 	case 10:
456 		irq_bits = 0x03;
457 		break;
458 	case 11:
459 		irq_bits = 0x04;
460 		break;
461 	default:
462 		snd_printk(KERN_WARNING "WSS irq # %d not valid\n", irq);
463 		goto __skip_resources;
464 	}
465 
466 	switch (dma1) {
467 	case 0:
468 		dma_bits = 0x01;
469 		break;
470 	case 1:
471 		dma_bits = 0x02;
472 		break;
473 	case 3:
474 		dma_bits = 0x03;
475 		break;
476 	default:
477 		snd_printk(KERN_WARNING "WSS dma1 # %d not valid\n", dma1);
478 		goto __skip_resources;
479 	}
480 
481 #if defined(CS4231) || defined(OPTi93X)
482 	if (dma1 == dma2) {
483 		snd_printk(KERN_ERR "don't want to share dmas\n");
484 		return -EBUSY;
485 	}
486 
487 	switch (dma2) {
488 	case 0:
489 	case 1:
490 		break;
491 	default:
492 		snd_printk(KERN_WARNING "WSS dma2 # %d not valid\n", dma2);
493 		goto __skip_resources;
494 	}
495 	dma_bits |= 0x04;
496 #endif	/* CS4231 || OPTi93X */
497 
498 #ifndef OPTi93X
499 	 outb(irq_bits << 3 | dma_bits, chip->wss_base);
500 #else /* OPTi93X */
501 	snd_opti9xx_write(chip, OPTi9XX_MC_REG(3), (irq_bits << 3 | dma_bits));
502 #endif /* OPTi93X */
503 
504 __skip_resources:
505 	if (chip->hardware > OPTi9XX_HW_82C928) {
506 		switch (mpu_port) {
507 		case 0:
508 		case -1:
509 			break;
510 		case 0x300:
511 			mpu_port_bits = 0x03;
512 			break;
513 		case 0x310:
514 			mpu_port_bits = 0x02;
515 			break;
516 		case 0x320:
517 			mpu_port_bits = 0x01;
518 			break;
519 		case 0x330:
520 			mpu_port_bits = 0x00;
521 			break;
522 		default:
523 			snd_printk(KERN_WARNING
524 				   "MPU-401 port 0x%lx not valid\n", mpu_port);
525 			goto __skip_mpu;
526 		}
527 
528 		switch (mpu_irq) {
529 		case 5:
530 			mpu_irq_bits = 0x02;
531 			break;
532 		case 7:
533 			mpu_irq_bits = 0x03;
534 			break;
535 		case 9:
536 			mpu_irq_bits = 0x00;
537 			break;
538 		case 10:
539 			mpu_irq_bits = 0x01;
540 			break;
541 		default:
542 			snd_printk(KERN_WARNING "MPU-401 irq # %d not valid\n",
543 				mpu_irq);
544 			goto __skip_mpu;
545 		}
546 
547 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6),
548 			(mpu_port <= 0) ? 0x00 :
549 				0x80 | mpu_port_bits << 5 | mpu_irq_bits << 3,
550 			0xf8);
551 	}
552 __skip_mpu:
553 
554 	return 0;
555 }
556 
557 #ifdef OPTi93X
558 
559 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_3db_step, -9300, 300, 0);
560 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
561 static const DECLARE_TLV_DB_SCALE(db_scale_4bit_12db_max, -3300, 300, 0);
562 
563 static struct snd_kcontrol_new snd_opti93x_controls[] = {
564 WSS_DOUBLE("Master Playback Switch", 0,
565 		OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 7, 7, 1, 1),
566 WSS_DOUBLE_TLV("Master Playback Volume", 0,
567 		OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 1, 1, 31, 1,
568 		db_scale_5bit_3db_step),
569 WSS_DOUBLE_TLV("PCM Playback Volume", 0,
570 		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 31, 1,
571 		db_scale_5bit),
572 WSS_DOUBLE_TLV("FM Playback Volume", 0,
573 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 1, 1, 15, 1,
574 		db_scale_4bit_12db_max),
575 WSS_DOUBLE("Line Playback Switch", 0,
576 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
577 WSS_DOUBLE_TLV("Line Playback Volume", 0,
578 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 15, 1,
579 		db_scale_4bit_12db_max),
580 WSS_DOUBLE("Mic Playback Switch", 0,
581 		OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 7, 7, 1, 1),
582 WSS_DOUBLE_TLV("Mic Playback Volume", 0,
583 		OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 1, 1, 15, 1,
584 		db_scale_4bit_12db_max),
585 WSS_DOUBLE_TLV("CD Playback Volume", 0,
586 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 1, 1, 15, 1,
587 		db_scale_4bit_12db_max),
588 WSS_DOUBLE("Aux Playback Switch", 0,
589 		OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 7, 7, 1, 1),
590 WSS_DOUBLE_TLV("Aux Playback Volume", 0,
591 		OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 1, 1, 15, 1,
592 		db_scale_4bit_12db_max),
593 };
594 
595 static int snd_opti93x_mixer(struct snd_wss *chip)
596 {
597 	struct snd_card *card;
598 	unsigned int idx;
599 	struct snd_ctl_elem_id id1, id2;
600 	int err;
601 
602 	if (snd_BUG_ON(!chip || !chip->pcm))
603 		return -EINVAL;
604 
605 	card = chip->card;
606 
607 	strcpy(card->mixername, chip->pcm->name);
608 
609 	memset(&id1, 0, sizeof(id1));
610 	memset(&id2, 0, sizeof(id2));
611 	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
612 	/* reassign AUX0 switch to CD */
613 	strcpy(id1.name, "Aux Playback Switch");
614 	strcpy(id2.name, "CD Playback Switch");
615 	err = snd_ctl_rename_id(card, &id1, &id2);
616 	if (err < 0) {
617 		snd_printk(KERN_ERR "Cannot rename opti93x control\n");
618 		return err;
619 	}
620 	/* reassign AUX1 switch to FM */
621 	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
622 	strcpy(id2.name, "FM Playback Switch");
623 	err = snd_ctl_rename_id(card, &id1, &id2);
624 	if (err < 0) {
625 		snd_printk(KERN_ERR "Cannot rename opti93x control\n");
626 		return err;
627 	}
628 	/* remove AUX1 volume */
629 	strcpy(id1.name, "Aux Playback Volume"); id1.index = 1;
630 	snd_ctl_remove_id(card, &id1);
631 
632 	/* Replace WSS volume controls with OPTi93x volume controls */
633 	id1.index = 0;
634 	for (idx = 0; idx < ARRAY_SIZE(snd_opti93x_controls); idx++) {
635 		strcpy(id1.name, snd_opti93x_controls[idx].name);
636 		snd_ctl_remove_id(card, &id1);
637 
638 		err = snd_ctl_add(card,
639 				snd_ctl_new1(&snd_opti93x_controls[idx], chip));
640 		if (err < 0)
641 			return err;
642 	}
643 	return 0;
644 }
645 
646 static irqreturn_t snd_opti93x_interrupt(int irq, void *dev_id)
647 {
648 	struct snd_opti9xx *chip = dev_id;
649 	struct snd_wss *codec = chip->codec;
650 	unsigned char status;
651 
652 	if (!codec)
653 		return IRQ_HANDLED;
654 
655 	status = snd_opti9xx_read(chip, OPTi9XX_MC_REG(11));
656 	if ((status & OPTi93X_IRQ_PLAYBACK) && codec->playback_substream)
657 		snd_pcm_period_elapsed(codec->playback_substream);
658 	if ((status & OPTi93X_IRQ_CAPTURE) && codec->capture_substream) {
659 		snd_wss_overrange(codec);
660 		snd_pcm_period_elapsed(codec->capture_substream);
661 	}
662 	outb(0x00, OPTi93X_PORT(codec, STATUS));
663 	return IRQ_HANDLED;
664 }
665 
666 #endif /* OPTi93X */
667 
668 static int snd_opti9xx_read_check(struct snd_opti9xx *chip)
669 {
670 	unsigned char value;
671 #ifdef OPTi93X
672 	unsigned long flags;
673 #endif
674 
675 	chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size,
676 					   "OPTi9xx MC");
677 	if (chip->res_mc_base == NULL)
678 		return -EBUSY;
679 #ifndef OPTi93X
680 	value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(1));
681 	if (value != 0xff && value != inb(chip->mc_base + OPTi9XX_MC_REG(1)))
682 		if (value == snd_opti9xx_read(chip, OPTi9XX_MC_REG(1)))
683 			return 0;
684 #else	/* OPTi93X */
685 	chip->res_mc_indir = request_region(chip->mc_indir_index, 2,
686 					    "OPTi93x MC");
687 	if (chip->res_mc_indir == NULL)
688 		return -EBUSY;
689 
690 	spin_lock_irqsave(&chip->lock, flags);
691 	outb(chip->password, chip->mc_base + chip->pwd_reg);
692 	outb(((chip->mc_indir_index & 0x1f0) >> 4), chip->mc_base);
693 	spin_unlock_irqrestore(&chip->lock, flags);
694 
695 	value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(7));
696 	snd_opti9xx_write(chip, OPTi9XX_MC_REG(7), 0xff - value);
697 	if (snd_opti9xx_read(chip, OPTi9XX_MC_REG(7)) == 0xff - value)
698 		return 0;
699 
700 	release_and_free_resource(chip->res_mc_indir);
701 	chip->res_mc_indir = NULL;
702 #endif	/* OPTi93X */
703 	release_and_free_resource(chip->res_mc_base);
704 	chip->res_mc_base = NULL;
705 
706 	return -ENODEV;
707 }
708 
709 static int snd_card_opti9xx_detect(struct snd_card *card,
710 				   struct snd_opti9xx *chip)
711 {
712 	int i, err;
713 
714 #ifndef OPTi93X
715 	for (i = OPTi9XX_HW_82C928; i < OPTi9XX_HW_82C930; i++) {
716 #else
717 	for (i = OPTi9XX_HW_82C931; i >= OPTi9XX_HW_82C930; i--) {
718 #endif
719 		err = snd_opti9xx_init(chip, i);
720 		if (err < 0)
721 			return err;
722 
723 		err = snd_opti9xx_read_check(chip);
724 		if (err == 0)
725 			return 1;
726 #ifdef OPTi93X
727 		chip->mc_indir_index = 0;
728 #endif
729 	}
730 	return -ENODEV;
731 }
732 
733 #ifdef CONFIG_PNP
734 static int snd_card_opti9xx_pnp(struct snd_opti9xx *chip,
735 				struct pnp_card_link *card,
736 				const struct pnp_card_device_id *pid)
737 {
738 	struct pnp_dev *pdev;
739 	int err;
740 	struct pnp_dev *devmpu;
741 #ifndef OPTi93X
742 	struct pnp_dev *devmc;
743 #endif
744 
745 	pdev = pnp_request_card_device(card, pid->devs[0].id, NULL);
746 	if (pdev == NULL)
747 		return -EBUSY;
748 
749 	err = pnp_activate_dev(pdev);
750 	if (err < 0) {
751 		snd_printk(KERN_ERR "AUDIO pnp configure failure: %d\n", err);
752 		return err;
753 	}
754 
755 #ifdef OPTi93X
756 	port = pnp_port_start(pdev, 0) - 4;
757 	fm_port = pnp_port_start(pdev, 1) + 8;
758 	/* adjust mc_indir_index - some cards report it at 0xe?d,
759 	   other at 0xe?c but it really is always at 0xe?e */
760 	chip->mc_indir_index = (pnp_port_start(pdev, 3) & ~0xf) | 0xe;
761 #else
762 	devmc = pnp_request_card_device(card, pid->devs[2].id, NULL);
763 	if (devmc == NULL)
764 		return -EBUSY;
765 
766 	err = pnp_activate_dev(devmc);
767 	if (err < 0) {
768 		snd_printk(KERN_ERR "MC pnp configure failure: %d\n", err);
769 		return err;
770 	}
771 
772 	port = pnp_port_start(pdev, 1);
773 	fm_port = pnp_port_start(pdev, 2) + 8;
774 	/*
775 	 * The MC(0) is never accessed and card does not
776 	 * include it in the PnP resource range. OPTI93x include it.
777 	 */
778 	chip->mc_base = pnp_port_start(devmc, 0) - 1;
779 	chip->mc_base_size = pnp_port_len(devmc, 0) + 1;
780 #endif	/* OPTi93X */
781 	irq = pnp_irq(pdev, 0);
782 	dma1 = pnp_dma(pdev, 0);
783 #if defined(CS4231) || defined(OPTi93X)
784 	dma2 = pnp_dma(pdev, 1);
785 #endif	/* CS4231 || OPTi93X */
786 
787 	devmpu = pnp_request_card_device(card, pid->devs[1].id, NULL);
788 
789 	if (devmpu && mpu_port > 0) {
790 		err = pnp_activate_dev(devmpu);
791 		if (err < 0) {
792 			snd_printk(KERN_ERR "MPU401 pnp configure failure\n");
793 			mpu_port = -1;
794 		} else {
795 			mpu_port = pnp_port_start(devmpu, 0);
796 			mpu_irq = pnp_irq(devmpu, 0);
797 		}
798 	}
799 	return pid->driver_data;
800 }
801 #endif	/* CONFIG_PNP */
802 
803 static void snd_card_opti9xx_free(struct snd_card *card)
804 {
805 	struct snd_opti9xx *chip = card->private_data;
806 
807 	if (chip) {
808 #ifdef OPTi93X
809 		if (chip->irq > 0) {
810 			disable_irq(chip->irq);
811 			free_irq(chip->irq, chip);
812 		}
813 		release_and_free_resource(chip->res_mc_indir);
814 #endif
815 		release_and_free_resource(chip->res_mc_base);
816 	}
817 }
818 
819 static int snd_opti9xx_probe(struct snd_card *card)
820 {
821 	static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
822 	int error;
823 	int xdma2;
824 	struct snd_opti9xx *chip = card->private_data;
825 	struct snd_wss *codec;
826 	struct snd_rawmidi *rmidi;
827 	struct snd_hwdep *synth;
828 
829 #if defined(CS4231) || defined(OPTi93X)
830 	xdma2 = dma2;
831 #else
832 	xdma2 = -1;
833 #endif
834 
835 	if (port == SNDRV_AUTO_PORT) {
836 		port = snd_legacy_find_free_ioport(possible_ports, 4);
837 		if (port < 0) {
838 			snd_printk(KERN_ERR "unable to find a free WSS port\n");
839 			return -EBUSY;
840 		}
841 	}
842 	error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
843 				      mpu_port, mpu_irq);
844 	if (error)
845 		return error;
846 
847 	error = snd_wss_create(card, chip->wss_base + 4, -1, irq, dma1, xdma2,
848 #ifdef OPTi93X
849 			       WSS_HW_OPTI93X, WSS_HWSHARE_IRQ,
850 #else
851 			       WSS_HW_DETECT, 0,
852 #endif
853 			       &codec);
854 	if (error < 0)
855 		return error;
856 	chip->codec = codec;
857 	error = snd_wss_pcm(codec, 0);
858 	if (error < 0)
859 		return error;
860 	error = snd_wss_mixer(codec);
861 	if (error < 0)
862 		return error;
863 #ifdef OPTi93X
864 	error = snd_opti93x_mixer(codec);
865 	if (error < 0)
866 		return error;
867 #endif
868 #ifdef CS4231
869 	error = snd_wss_timer(codec, 0);
870 	if (error < 0)
871 		return error;
872 #endif
873 #ifdef OPTi93X
874 	error = request_irq(irq, snd_opti93x_interrupt,
875 			    0, DEV_NAME" - WSS", chip);
876 	if (error < 0) {
877 		snd_printk(KERN_ERR "opti9xx: can't grab IRQ %d\n", irq);
878 		return error;
879 	}
880 #endif
881 	chip->irq = irq;
882 	strcpy(card->driver, chip->name);
883 	sprintf(card->shortname, "OPTi %s", card->driver);
884 #if defined(CS4231) || defined(OPTi93X)
885 	snprintf(card->longname, sizeof(card->longname),
886 		 "%s, %s at 0x%lx, irq %d, dma %d&%d",
887 		 card->shortname, codec->pcm->name,
888 		 chip->wss_base + 4, irq, dma1, xdma2);
889 #else
890 	snprintf(card->longname, sizeof(card->longname),
891 		 "%s, %s at 0x%lx, irq %d, dma %d",
892 		 card->shortname, codec->pcm->name, chip->wss_base + 4, irq,
893 		 dma1);
894 #endif	/* CS4231 || OPTi93X */
895 
896 	if (mpu_port <= 0 || mpu_port == SNDRV_AUTO_PORT)
897 		rmidi = NULL;
898 	else {
899 		error = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
900 				mpu_port, 0, mpu_irq, &rmidi);
901 		if (error)
902 			snd_printk(KERN_WARNING "no MPU-401 device at 0x%lx?\n",
903 				   mpu_port);
904 	}
905 
906 	if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
907 		struct snd_opl3 *opl3 = NULL;
908 #ifndef OPTi93X
909 		if (chip->hardware == OPTi9XX_HW_82C928 ||
910 		    chip->hardware == OPTi9XX_HW_82C929 ||
911 		    chip->hardware == OPTi9XX_HW_82C924) {
912 			struct snd_opl4 *opl4;
913 			/* assume we have an OPL4 */
914 			snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2),
915 					       0x20, 0x20);
916 			if (snd_opl4_create(card, fm_port, fm_port - 8,
917 					    2, &opl3, &opl4) < 0) {
918 				/* no luck, use OPL3 instead */
919 				snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2),
920 						       0x00, 0x20);
921 			}
922 		}
923 #endif	/* !OPTi93X */
924 		if (!opl3 && snd_opl3_create(card, fm_port, fm_port + 2,
925 					     OPL3_HW_AUTO, 0, &opl3) < 0) {
926 			snd_printk(KERN_WARNING "no OPL device at 0x%lx-0x%lx\n",
927 				   fm_port, fm_port + 4 - 1);
928 		}
929 		if (opl3) {
930 			error = snd_opl3_hwdep_new(opl3, 0, 1, &synth);
931 			if (error < 0)
932 				return error;
933 		}
934 	}
935 
936 	return snd_card_register(card);
937 }
938 
939 static int snd_opti9xx_card_new(struct device *pdev, struct snd_card **cardp)
940 {
941 	struct snd_card *card;
942 	int err;
943 
944 	err = snd_card_new(pdev, index, id, THIS_MODULE,
945 			   sizeof(struct snd_opti9xx), &card);
946 	if (err < 0)
947 		return err;
948 	card->private_free = snd_card_opti9xx_free;
949 	*cardp = card;
950 	return 0;
951 }
952 
953 static int snd_opti9xx_isa_match(struct device *devptr,
954 				 unsigned int dev)
955 {
956 #ifdef CONFIG_PNP
957 	if (snd_opti9xx_pnp_is_probed)
958 		return 0;
959 	if (isapnp)
960 		return 0;
961 #endif
962 	return 1;
963 }
964 
965 static int snd_opti9xx_isa_probe(struct device *devptr,
966 				 unsigned int dev)
967 {
968 	struct snd_card *card;
969 	int error;
970 	static long possible_mpu_ports[] = {0x300, 0x310, 0x320, 0x330, -1};
971 #ifdef OPTi93X
972 	static int possible_irqs[] = {5, 9, 10, 11, 7, -1};
973 #else
974 	static int possible_irqs[] = {9, 10, 11, 7, -1};
975 #endif	/* OPTi93X */
976 	static int possible_mpu_irqs[] = {5, 9, 10, 7, -1};
977 	static int possible_dma1s[] = {3, 1, 0, -1};
978 #if defined(CS4231) || defined(OPTi93X)
979 	static int possible_dma2s[][2] = {{1,-1}, {0,-1}, {-1,-1}, {0,-1}};
980 #endif	/* CS4231 || OPTi93X */
981 
982 	if (mpu_port == SNDRV_AUTO_PORT) {
983 		if ((mpu_port = snd_legacy_find_free_ioport(possible_mpu_ports, 2)) < 0) {
984 			snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
985 			return -EBUSY;
986 		}
987 	}
988 	if (irq == SNDRV_AUTO_IRQ) {
989 		if ((irq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
990 			snd_printk(KERN_ERR "unable to find a free IRQ\n");
991 			return -EBUSY;
992 		}
993 	}
994 	if (mpu_irq == SNDRV_AUTO_IRQ) {
995 		if ((mpu_irq = snd_legacy_find_free_irq(possible_mpu_irqs)) < 0) {
996 			snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
997 			return -EBUSY;
998 		}
999 	}
1000 	if (dma1 == SNDRV_AUTO_DMA) {
1001 		if ((dma1 = snd_legacy_find_free_dma(possible_dma1s)) < 0) {
1002 			snd_printk(KERN_ERR "unable to find a free DMA1\n");
1003 			return -EBUSY;
1004 		}
1005 	}
1006 #if defined(CS4231) || defined(OPTi93X)
1007 	if (dma2 == SNDRV_AUTO_DMA) {
1008 		if ((dma2 = snd_legacy_find_free_dma(possible_dma2s[dma1 % 4])) < 0) {
1009 			snd_printk(KERN_ERR "unable to find a free DMA2\n");
1010 			return -EBUSY;
1011 		}
1012 	}
1013 #endif
1014 
1015 	error = snd_opti9xx_card_new(devptr, &card);
1016 	if (error < 0)
1017 		return error;
1018 
1019 	if ((error = snd_card_opti9xx_detect(card, card->private_data)) < 0) {
1020 		snd_card_free(card);
1021 		return error;
1022 	}
1023 	if ((error = snd_opti9xx_probe(card)) < 0) {
1024 		snd_card_free(card);
1025 		return error;
1026 	}
1027 	dev_set_drvdata(devptr, card);
1028 	return 0;
1029 }
1030 
1031 static int snd_opti9xx_isa_remove(struct device *devptr,
1032 				  unsigned int dev)
1033 {
1034 	snd_card_free(dev_get_drvdata(devptr));
1035 	return 0;
1036 }
1037 
1038 #ifdef CONFIG_PM
1039 static int snd_opti9xx_suspend(struct snd_card *card)
1040 {
1041 	struct snd_opti9xx *chip = card->private_data;
1042 
1043 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1044 	chip->codec->suspend(chip->codec);
1045 	return 0;
1046 }
1047 
1048 static int snd_opti9xx_resume(struct snd_card *card)
1049 {
1050 	struct snd_opti9xx *chip = card->private_data;
1051 	int error, xdma2;
1052 #if defined(CS4231) || defined(OPTi93X)
1053 	xdma2 = dma2;
1054 #else
1055 	xdma2 = -1;
1056 #endif
1057 
1058 	error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
1059 				      mpu_port, mpu_irq);
1060 	if (error)
1061 		return error;
1062 	chip->codec->resume(chip->codec);
1063 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1064 	return 0;
1065 }
1066 
1067 static int snd_opti9xx_isa_suspend(struct device *dev, unsigned int n,
1068 				   pm_message_t state)
1069 {
1070 	return snd_opti9xx_suspend(dev_get_drvdata(dev));
1071 }
1072 
1073 static int snd_opti9xx_isa_resume(struct device *dev, unsigned int n)
1074 {
1075 	return snd_opti9xx_resume(dev_get_drvdata(dev));
1076 }
1077 #endif
1078 
1079 static struct isa_driver snd_opti9xx_driver = {
1080 	.match		= snd_opti9xx_isa_match,
1081 	.probe		= snd_opti9xx_isa_probe,
1082 	.remove		= snd_opti9xx_isa_remove,
1083 #ifdef CONFIG_PM
1084 	.suspend	= snd_opti9xx_isa_suspend,
1085 	.resume		= snd_opti9xx_isa_resume,
1086 #endif
1087 	.driver		= {
1088 		.name	= DEV_NAME
1089 	},
1090 };
1091 
1092 #ifdef CONFIG_PNP
1093 static int snd_opti9xx_pnp_probe(struct pnp_card_link *pcard,
1094 				 const struct pnp_card_device_id *pid)
1095 {
1096 	struct snd_card *card;
1097 	int error, hw;
1098 	struct snd_opti9xx *chip;
1099 
1100 	if (snd_opti9xx_pnp_is_probed)
1101 		return -EBUSY;
1102 	if (! isapnp)
1103 		return -ENODEV;
1104 	error = snd_opti9xx_card_new(&pcard->card->dev, &card);
1105 	if (error < 0)
1106 		return error;
1107 	chip = card->private_data;
1108 
1109 	hw = snd_card_opti9xx_pnp(chip, pcard, pid);
1110 	switch (hw) {
1111 	case 0x0924:
1112 		hw = OPTi9XX_HW_82C924;
1113 		break;
1114 	case 0x0925:
1115 		hw = OPTi9XX_HW_82C925;
1116 		break;
1117 	case 0x0931:
1118 		hw = OPTi9XX_HW_82C931;
1119 		break;
1120 	default:
1121 		snd_card_free(card);
1122 		return -ENODEV;
1123 	}
1124 
1125 	if ((error = snd_opti9xx_init(chip, hw))) {
1126 		snd_card_free(card);
1127 		return error;
1128 	}
1129 	error = snd_opti9xx_read_check(chip);
1130 	if (error) {
1131 		snd_printk(KERN_ERR "OPTI chip not found\n");
1132 		snd_card_free(card);
1133 		return error;
1134 	}
1135 	if ((error = snd_opti9xx_probe(card)) < 0) {
1136 		snd_card_free(card);
1137 		return error;
1138 	}
1139 	pnp_set_card_drvdata(pcard, card);
1140 	snd_opti9xx_pnp_is_probed = 1;
1141 	return 0;
1142 }
1143 
1144 static void snd_opti9xx_pnp_remove(struct pnp_card_link *pcard)
1145 {
1146 	snd_card_free(pnp_get_card_drvdata(pcard));
1147 	pnp_set_card_drvdata(pcard, NULL);
1148 	snd_opti9xx_pnp_is_probed = 0;
1149 }
1150 
1151 #ifdef CONFIG_PM
1152 static int snd_opti9xx_pnp_suspend(struct pnp_card_link *pcard,
1153 				   pm_message_t state)
1154 {
1155 	return snd_opti9xx_suspend(pnp_get_card_drvdata(pcard));
1156 }
1157 
1158 static int snd_opti9xx_pnp_resume(struct pnp_card_link *pcard)
1159 {
1160 	return snd_opti9xx_resume(pnp_get_card_drvdata(pcard));
1161 }
1162 #endif
1163 
1164 static struct pnp_card_driver opti9xx_pnpc_driver = {
1165 	.flags		= PNP_DRIVER_RES_DISABLE,
1166 	.name		= DEV_NAME,
1167 	.id_table	= snd_opti9xx_pnpids,
1168 	.probe		= snd_opti9xx_pnp_probe,
1169 	.remove		= snd_opti9xx_pnp_remove,
1170 #ifdef CONFIG_PM
1171 	.suspend	= snd_opti9xx_pnp_suspend,
1172 	.resume		= snd_opti9xx_pnp_resume,
1173 #endif
1174 };
1175 #endif
1176 
1177 #ifdef OPTi93X
1178 #define CHIP_NAME	"82C93x"
1179 #else
1180 #define CHIP_NAME	"82C92x"
1181 #endif
1182 
1183 static int __init alsa_card_opti9xx_init(void)
1184 {
1185 #ifdef CONFIG_PNP
1186 	pnp_register_card_driver(&opti9xx_pnpc_driver);
1187 	if (snd_opti9xx_pnp_is_probed)
1188 		return 0;
1189 	pnp_unregister_card_driver(&opti9xx_pnpc_driver);
1190 #endif
1191 	return isa_register_driver(&snd_opti9xx_driver, 1);
1192 }
1193 
1194 static void __exit alsa_card_opti9xx_exit(void)
1195 {
1196 	if (!snd_opti9xx_pnp_is_probed) {
1197 		isa_unregister_driver(&snd_opti9xx_driver);
1198 		return;
1199 	}
1200 #ifdef CONFIG_PNP
1201 	pnp_unregister_card_driver(&opti9xx_pnpc_driver);
1202 #endif
1203 }
1204 
1205 module_init(alsa_card_opti9xx_init)
1206 module_exit(alsa_card_opti9xx_exit)
1207