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(port, long, 0444);
92 MODULE_PARM_DESC(port, "WSS port # for opti9xx driver.");
93 module_param(mpu_port, long, 0444);
94 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for opti9xx driver.");
95 module_param(fm_port, long, 0444);
96 MODULE_PARM_DESC(fm_port, "FM port # for opti9xx driver.");
97 module_param(irq, int, 0444);
98 MODULE_PARM_DESC(irq, "WSS irq # for opti9xx driver.");
99 module_param(mpu_irq, int, 0444);
100 MODULE_PARM_DESC(mpu_irq, "MPU-401 irq # for opti9xx driver.");
101 module_param(dma1, int, 0444);
102 MODULE_PARM_DESC(dma1, "1st dma # for opti9xx driver.");
103 #if defined(CS4231) || defined(OPTi93X)
104 module_param(dma2, int, 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 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 
265 	case OPTi9XX_HW_82C928:
266 	case OPTi9XX_HW_82C929:
267 		retval = inb(chip->mc_base + reg);
268 		break;
269 #else	/* OPTi93X */
270 
271 	case OPTi9XX_HW_82C930:
272 	case OPTi9XX_HW_82C931:
273 	case OPTi9XX_HW_82C933:
274 		outb(reg, chip->mc_indir_index);
275 		outb(chip->password, chip->mc_base + chip->pwd_reg);
276 		retval = inb(chip->mc_indir_index + 1);
277 		break;
278 #endif	/* OPTi93X */
279 
280 	default:
281 		snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
282 	}
283 
284 	spin_unlock_irqrestore(&chip->lock, flags);
285 	return retval;
286 }
287 
288 static void snd_opti9xx_write(struct snd_opti9xx *chip, unsigned char reg,
289 			      unsigned char value)
290 {
291 	unsigned long flags;
292 
293 	spin_lock_irqsave(&chip->lock, flags);
294 	outb(chip->password, chip->mc_base + chip->pwd_reg);
295 
296 	switch (chip->hardware) {
297 #ifndef OPTi93X
298 	case OPTi9XX_HW_82C924:
299 	case OPTi9XX_HW_82C925:
300 		if (reg > 7) {
301 			outb(reg, chip->mc_base + 8);
302 			outb(chip->password, chip->mc_base + chip->pwd_reg);
303 			outb(value, chip->mc_base + 9);
304 			break;
305 		}
306 
307 	case OPTi9XX_HW_82C928:
308 	case OPTi9XX_HW_82C929:
309 		outb(value, chip->mc_base + reg);
310 		break;
311 #else	/* OPTi93X */
312 
313 	case OPTi9XX_HW_82C930:
314 	case OPTi9XX_HW_82C931:
315 	case OPTi9XX_HW_82C933:
316 		outb(reg, chip->mc_indir_index);
317 		outb(chip->password, chip->mc_base + chip->pwd_reg);
318 		outb(value, chip->mc_indir_index + 1);
319 		break;
320 #endif	/* OPTi93X */
321 
322 	default:
323 		snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
324 	}
325 
326 	spin_unlock_irqrestore(&chip->lock, flags);
327 }
328 
329 
330 #define snd_opti9xx_write_mask(chip, reg, value, mask)	\
331 	snd_opti9xx_write(chip, reg,			\
332 		(snd_opti9xx_read(chip, reg) & ~(mask)) | ((value) & (mask)))
333 
334 
335 static int snd_opti9xx_configure(struct snd_opti9xx *chip,
336 					   long port,
337 					   int irq, int dma1, int dma2,
338 					   long mpu_port, int mpu_irq)
339 {
340 	unsigned char wss_base_bits;
341 	unsigned char irq_bits;
342 	unsigned char dma_bits;
343 	unsigned char mpu_port_bits = 0;
344 	unsigned char mpu_irq_bits;
345 
346 	switch (chip->hardware) {
347 #ifndef OPTi93X
348 	case OPTi9XX_HW_82C924:
349 		/* opti 929 mode (?), OPL3 clock output, audio enable */
350 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0xf0, 0xfc);
351 		/* enable wave audio */
352 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x02);
353 
354 	case OPTi9XX_HW_82C925:
355 		/* enable WSS mode */
356 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
357 		/* OPL3 FM synthesis */
358 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2), 0x00, 0x20);
359 		/* disable Sound Blaster IRQ and DMA */
360 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
361 #ifdef CS4231
362 		/* cs4231/4248 fix enabled */
363 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
364 #else
365 		/* cs4231/4248 fix disabled */
366 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x00, 0x02);
367 #endif	/* CS4231 */
368 		break;
369 
370 	case OPTi9XX_HW_82C928:
371 	case OPTi9XX_HW_82C929:
372 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
373 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2), 0x00, 0x20);
374 		/*
375 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xa2, 0xae);
376 		*/
377 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0x00, 0x0c);
378 #ifdef CS4231
379 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
380 #else
381 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x00, 0x02);
382 #endif	/* CS4231 */
383 		break;
384 
385 #else	/* OPTi93X */
386 	case OPTi9XX_HW_82C931:
387 		/* disable 3D sound (set GPIO1 as output, low) */
388 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(20), 0x04, 0x0c);
389 	case OPTi9XX_HW_82C933: /* FALL THROUGH */
390 		/*
391 		 * The BTC 1817DW has QS1000 wavetable which is connected
392 		 * to the serial digital input of the OPTI931.
393 		 */
394 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(21), 0x82, 0xff);
395 		/*
396 		 * This bit sets OPTI931 to automaticaly select FM
397 		 * or digital input signal.
398 		 */
399 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(26), 0x01, 0x01);
400 	case OPTi9XX_HW_82C930: /* FALL THROUGH */
401 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x03);
402 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0x00, 0xff);
403 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0x10 |
404 			(chip->hardware == OPTi9XX_HW_82C930 ? 0x00 : 0x04),
405 			0x34);
406 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x20, 0xbf);
407 		break;
408 #endif	/* OPTi93X */
409 
410 	default:
411 		snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
412 		return -EINVAL;
413 	}
414 
415 	/* PnP resource says it decodes only 10 bits of address */
416 	switch (port & 0x3ff) {
417 	case 0x130:
418 		chip->wss_base = 0x530;
419 		wss_base_bits = 0x00;
420 		break;
421 	case 0x204:
422 		chip->wss_base = 0x604;
423 		wss_base_bits = 0x03;
424 		break;
425 	case 0x280:
426 		chip->wss_base = 0xe80;
427 		wss_base_bits = 0x01;
428 		break;
429 	case 0x340:
430 		chip->wss_base = 0xf40;
431 		wss_base_bits = 0x02;
432 		break;
433 	default:
434 		snd_printk(KERN_WARNING "WSS port 0x%lx not valid\n", port);
435 		goto __skip_base;
436 	}
437 	snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), wss_base_bits << 4, 0x30);
438 
439 __skip_base:
440 	switch (irq) {
441 //#ifdef OPTi93X
442 	case 5:
443 		irq_bits = 0x05;
444 		break;
445 //#endif	/* OPTi93X */
446 	case 7:
447 		irq_bits = 0x01;
448 		break;
449 	case 9:
450 		irq_bits = 0x02;
451 		break;
452 	case 10:
453 		irq_bits = 0x03;
454 		break;
455 	case 11:
456 		irq_bits = 0x04;
457 		break;
458 	default:
459 		snd_printk(KERN_WARNING "WSS irq # %d not valid\n", irq);
460 		goto __skip_resources;
461 	}
462 
463 	switch (dma1) {
464 	case 0:
465 		dma_bits = 0x01;
466 		break;
467 	case 1:
468 		dma_bits = 0x02;
469 		break;
470 	case 3:
471 		dma_bits = 0x03;
472 		break;
473 	default:
474 		snd_printk(KERN_WARNING "WSS dma1 # %d not valid\n", dma1);
475 		goto __skip_resources;
476 	}
477 
478 #if defined(CS4231) || defined(OPTi93X)
479 	if (dma1 == dma2) {
480 		snd_printk(KERN_ERR "don't want to share dmas\n");
481 		return -EBUSY;
482 	}
483 
484 	switch (dma2) {
485 	case 0:
486 	case 1:
487 		break;
488 	default:
489 		snd_printk(KERN_WARNING "WSS dma2 # %d not valid\n", dma2);
490 		goto __skip_resources;
491 	}
492 	dma_bits |= 0x04;
493 #endif	/* CS4231 || OPTi93X */
494 
495 #ifndef OPTi93X
496 	 outb(irq_bits << 3 | dma_bits, chip->wss_base);
497 #else /* OPTi93X */
498 	snd_opti9xx_write(chip, OPTi9XX_MC_REG(3), (irq_bits << 3 | dma_bits));
499 #endif /* OPTi93X */
500 
501 __skip_resources:
502 	if (chip->hardware > OPTi9XX_HW_82C928) {
503 		switch (mpu_port) {
504 		case 0:
505 		case -1:
506 			break;
507 		case 0x300:
508 			mpu_port_bits = 0x03;
509 			break;
510 		case 0x310:
511 			mpu_port_bits = 0x02;
512 			break;
513 		case 0x320:
514 			mpu_port_bits = 0x01;
515 			break;
516 		case 0x330:
517 			mpu_port_bits = 0x00;
518 			break;
519 		default:
520 			snd_printk(KERN_WARNING
521 				   "MPU-401 port 0x%lx not valid\n", mpu_port);
522 			goto __skip_mpu;
523 		}
524 
525 		switch (mpu_irq) {
526 		case 5:
527 			mpu_irq_bits = 0x02;
528 			break;
529 		case 7:
530 			mpu_irq_bits = 0x03;
531 			break;
532 		case 9:
533 			mpu_irq_bits = 0x00;
534 			break;
535 		case 10:
536 			mpu_irq_bits = 0x01;
537 			break;
538 		default:
539 			snd_printk(KERN_WARNING "MPU-401 irq # %d not valid\n",
540 				mpu_irq);
541 			goto __skip_mpu;
542 		}
543 
544 		snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6),
545 			(mpu_port <= 0) ? 0x00 :
546 				0x80 | mpu_port_bits << 5 | mpu_irq_bits << 3,
547 			0xf8);
548 	}
549 __skip_mpu:
550 
551 	return 0;
552 }
553 
554 #ifdef OPTi93X
555 
556 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_3db_step, -9300, 300, 0);
557 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
558 static const DECLARE_TLV_DB_SCALE(db_scale_4bit_12db_max, -3300, 300, 0);
559 
560 static struct snd_kcontrol_new snd_opti93x_controls[] = {
561 WSS_DOUBLE("Master Playback Switch", 0,
562 		OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 7, 7, 1, 1),
563 WSS_DOUBLE_TLV("Master Playback Volume", 0,
564 		OPTi93X_OUT_LEFT, OPTi93X_OUT_RIGHT, 1, 1, 31, 1,
565 		db_scale_5bit_3db_step),
566 WSS_DOUBLE_TLV("PCM Playback Volume", 0,
567 		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 31, 1,
568 		db_scale_5bit),
569 WSS_DOUBLE_TLV("FM Playback Volume", 0,
570 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 1, 1, 15, 1,
571 		db_scale_4bit_12db_max),
572 WSS_DOUBLE("Line Playback Switch", 0,
573 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
574 WSS_DOUBLE_TLV("Line Playback Volume", 0,
575 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 15, 1,
576 		db_scale_4bit_12db_max),
577 WSS_DOUBLE("Mic Playback Switch", 0,
578 		OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 7, 7, 1, 1),
579 WSS_DOUBLE_TLV("Mic Playback Volume", 0,
580 		OPTi93X_MIC_LEFT_INPUT, OPTi93X_MIC_RIGHT_INPUT, 1, 1, 15, 1,
581 		db_scale_4bit_12db_max),
582 WSS_DOUBLE_TLV("CD Playback Volume", 0,
583 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 1, 1, 15, 1,
584 		db_scale_4bit_12db_max),
585 WSS_DOUBLE("Aux Playback Switch", 0,
586 		OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 7, 7, 1, 1),
587 WSS_DOUBLE_TLV("Aux Playback Volume", 0,
588 		OPTi931_AUX_LEFT_INPUT, OPTi931_AUX_RIGHT_INPUT, 1, 1, 15, 1,
589 		db_scale_4bit_12db_max),
590 };
591 
592 static int snd_opti93x_mixer(struct snd_wss *chip)
593 {
594 	struct snd_card *card;
595 	unsigned int idx;
596 	struct snd_ctl_elem_id id1, id2;
597 	int err;
598 
599 	if (snd_BUG_ON(!chip || !chip->pcm))
600 		return -EINVAL;
601 
602 	card = chip->card;
603 
604 	strcpy(card->mixername, chip->pcm->name);
605 
606 	memset(&id1, 0, sizeof(id1));
607 	memset(&id2, 0, sizeof(id2));
608 	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
609 	/* reassign AUX0 switch to CD */
610 	strcpy(id1.name, "Aux Playback Switch");
611 	strcpy(id2.name, "CD Playback Switch");
612 	err = snd_ctl_rename_id(card, &id1, &id2);
613 	if (err < 0) {
614 		snd_printk(KERN_ERR "Cannot rename opti93x control\n");
615 		return err;
616 	}
617 	/* reassign AUX1 switch to FM */
618 	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
619 	strcpy(id2.name, "FM Playback Switch");
620 	err = snd_ctl_rename_id(card, &id1, &id2);
621 	if (err < 0) {
622 		snd_printk(KERN_ERR "Cannot rename opti93x control\n");
623 		return err;
624 	}
625 	/* remove AUX1 volume */
626 	strcpy(id1.name, "Aux Playback Volume"); id1.index = 1;
627 	snd_ctl_remove_id(card, &id1);
628 
629 	/* Replace WSS volume controls with OPTi93x volume controls */
630 	id1.index = 0;
631 	for (idx = 0; idx < ARRAY_SIZE(snd_opti93x_controls); idx++) {
632 		strcpy(id1.name, snd_opti93x_controls[idx].name);
633 		snd_ctl_remove_id(card, &id1);
634 
635 		err = snd_ctl_add(card,
636 				snd_ctl_new1(&snd_opti93x_controls[idx], chip));
637 		if (err < 0)
638 			return err;
639 	}
640 	return 0;
641 }
642 
643 static irqreturn_t snd_opti93x_interrupt(int irq, void *dev_id)
644 {
645 	struct snd_opti9xx *chip = dev_id;
646 	struct snd_wss *codec = chip->codec;
647 	unsigned char status;
648 
649 	if (!codec)
650 		return IRQ_HANDLED;
651 
652 	status = snd_opti9xx_read(chip, OPTi9XX_MC_REG(11));
653 	if ((status & OPTi93X_IRQ_PLAYBACK) && codec->playback_substream)
654 		snd_pcm_period_elapsed(codec->playback_substream);
655 	if ((status & OPTi93X_IRQ_CAPTURE) && codec->capture_substream) {
656 		snd_wss_overrange(codec);
657 		snd_pcm_period_elapsed(codec->capture_substream);
658 	}
659 	outb(0x00, OPTi93X_PORT(codec, STATUS));
660 	return IRQ_HANDLED;
661 }
662 
663 #endif /* OPTi93X */
664 
665 static int snd_opti9xx_read_check(struct snd_opti9xx *chip)
666 {
667 	unsigned char value;
668 #ifdef OPTi93X
669 	unsigned long flags;
670 #endif
671 
672 	chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size,
673 					   "OPTi9xx MC");
674 	if (chip->res_mc_base == NULL)
675 		return -EBUSY;
676 #ifndef OPTi93X
677 	value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(1));
678 	if (value != 0xff && value != inb(chip->mc_base + OPTi9XX_MC_REG(1)))
679 		if (value == snd_opti9xx_read(chip, OPTi9XX_MC_REG(1)))
680 			return 0;
681 #else	/* OPTi93X */
682 	chip->res_mc_indir = request_region(chip->mc_indir_index, 2,
683 					    "OPTi93x MC");
684 	if (chip->res_mc_indir == NULL)
685 		return -EBUSY;
686 
687 	spin_lock_irqsave(&chip->lock, flags);
688 	outb(chip->password, chip->mc_base + chip->pwd_reg);
689 	outb(((chip->mc_indir_index & 0x1f0) >> 4), chip->mc_base);
690 	spin_unlock_irqrestore(&chip->lock, flags);
691 
692 	value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(7));
693 	snd_opti9xx_write(chip, OPTi9XX_MC_REG(7), 0xff - value);
694 	if (snd_opti9xx_read(chip, OPTi9XX_MC_REG(7)) == 0xff - value)
695 		return 0;
696 
697 	release_and_free_resource(chip->res_mc_indir);
698 	chip->res_mc_indir = NULL;
699 #endif	/* OPTi93X */
700 	release_and_free_resource(chip->res_mc_base);
701 	chip->res_mc_base = NULL;
702 
703 	return -ENODEV;
704 }
705 
706 static int snd_card_opti9xx_detect(struct snd_card *card,
707 				   struct snd_opti9xx *chip)
708 {
709 	int i, err;
710 
711 #ifndef OPTi93X
712 	for (i = OPTi9XX_HW_82C928; i < OPTi9XX_HW_82C930; i++) {
713 #else
714 	for (i = OPTi9XX_HW_82C931; i >= OPTi9XX_HW_82C930; i--) {
715 #endif
716 		err = snd_opti9xx_init(chip, i);
717 		if (err < 0)
718 			return err;
719 
720 		err = snd_opti9xx_read_check(chip);
721 		if (err == 0)
722 			return 1;
723 #ifdef OPTi93X
724 		chip->mc_indir_index = 0;
725 #endif
726 	}
727 	return -ENODEV;
728 }
729 
730 #ifdef CONFIG_PNP
731 static int snd_card_opti9xx_pnp(struct snd_opti9xx *chip,
732 				struct pnp_card_link *card,
733 				const struct pnp_card_device_id *pid)
734 {
735 	struct pnp_dev *pdev;
736 	int err;
737 	struct pnp_dev *devmpu;
738 #ifndef OPTi93X
739 	struct pnp_dev *devmc;
740 #endif
741 
742 	pdev = pnp_request_card_device(card, pid->devs[0].id, NULL);
743 	if (pdev == NULL)
744 		return -EBUSY;
745 
746 	err = pnp_activate_dev(pdev);
747 	if (err < 0) {
748 		snd_printk(KERN_ERR "AUDIO pnp configure failure: %d\n", err);
749 		return err;
750 	}
751 
752 #ifdef OPTi93X
753 	port = pnp_port_start(pdev, 0) - 4;
754 	fm_port = pnp_port_start(pdev, 1) + 8;
755 	/* adjust mc_indir_index - some cards report it at 0xe?d,
756 	   other at 0xe?c but it really is always at 0xe?e */
757 	chip->mc_indir_index = (pnp_port_start(pdev, 3) & ~0xf) | 0xe;
758 #else
759 	devmc = pnp_request_card_device(card, pid->devs[2].id, NULL);
760 	if (devmc == NULL)
761 		return -EBUSY;
762 
763 	err = pnp_activate_dev(devmc);
764 	if (err < 0) {
765 		snd_printk(KERN_ERR "MC pnp configure failure: %d\n", err);
766 		return err;
767 	}
768 
769 	port = pnp_port_start(pdev, 1);
770 	fm_port = pnp_port_start(pdev, 2) + 8;
771 	/*
772 	 * The MC(0) is never accessed and card does not
773 	 * include it in the PnP resource range. OPTI93x include it.
774 	 */
775 	chip->mc_base = pnp_port_start(devmc, 0) - 1;
776 	chip->mc_base_size = pnp_port_len(devmc, 0) + 1;
777 #endif	/* OPTi93X */
778 	irq = pnp_irq(pdev, 0);
779 	dma1 = pnp_dma(pdev, 0);
780 #if defined(CS4231) || defined(OPTi93X)
781 	dma2 = pnp_dma(pdev, 1);
782 #endif	/* CS4231 || OPTi93X */
783 
784 	devmpu = pnp_request_card_device(card, pid->devs[1].id, NULL);
785 
786 	if (devmpu && mpu_port > 0) {
787 		err = pnp_activate_dev(devmpu);
788 		if (err < 0) {
789 			snd_printk(KERN_ERR "MPU401 pnp configure failure\n");
790 			mpu_port = -1;
791 		} else {
792 			mpu_port = pnp_port_start(devmpu, 0);
793 			mpu_irq = pnp_irq(devmpu, 0);
794 		}
795 	}
796 	return pid->driver_data;
797 }
798 #endif	/* CONFIG_PNP */
799 
800 static void snd_card_opti9xx_free(struct snd_card *card)
801 {
802 	struct snd_opti9xx *chip = card->private_data;
803 
804 	if (chip) {
805 #ifdef OPTi93X
806 		if (chip->irq > 0) {
807 			disable_irq(chip->irq);
808 			free_irq(chip->irq, chip);
809 		}
810 		release_and_free_resource(chip->res_mc_indir);
811 #endif
812 		release_and_free_resource(chip->res_mc_base);
813 	}
814 }
815 
816 static int snd_opti9xx_probe(struct snd_card *card)
817 {
818 	static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
819 	int error;
820 	int xdma2;
821 	struct snd_opti9xx *chip = card->private_data;
822 	struct snd_wss *codec;
823 	struct snd_rawmidi *rmidi;
824 	struct snd_hwdep *synth;
825 
826 #if defined(CS4231) || defined(OPTi93X)
827 	xdma2 = dma2;
828 #else
829 	xdma2 = -1;
830 #endif
831 
832 	if (port == SNDRV_AUTO_PORT) {
833 		port = snd_legacy_find_free_ioport(possible_ports, 4);
834 		if (port < 0) {
835 			snd_printk(KERN_ERR "unable to find a free WSS port\n");
836 			return -EBUSY;
837 		}
838 	}
839 	error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
840 				      mpu_port, mpu_irq);
841 	if (error)
842 		return error;
843 
844 	error = snd_wss_create(card, chip->wss_base + 4, -1, irq, dma1, xdma2,
845 #ifdef OPTi93X
846 			       WSS_HW_OPTI93X, WSS_HWSHARE_IRQ,
847 #else
848 			       WSS_HW_DETECT, 0,
849 #endif
850 			       &codec);
851 	if (error < 0)
852 		return error;
853 	chip->codec = codec;
854 	error = snd_wss_pcm(codec, 0);
855 	if (error < 0)
856 		return error;
857 	error = snd_wss_mixer(codec);
858 	if (error < 0)
859 		return error;
860 #ifdef OPTi93X
861 	error = snd_opti93x_mixer(codec);
862 	if (error < 0)
863 		return error;
864 #endif
865 #ifdef CS4231
866 	error = snd_wss_timer(codec, 0);
867 	if (error < 0)
868 		return error;
869 #endif
870 #ifdef OPTi93X
871 	error = request_irq(irq, snd_opti93x_interrupt,
872 			    0, DEV_NAME" - WSS", chip);
873 	if (error < 0) {
874 		snd_printk(KERN_ERR "opti9xx: can't grab IRQ %d\n", irq);
875 		return error;
876 	}
877 #endif
878 	chip->irq = irq;
879 	strcpy(card->driver, chip->name);
880 	sprintf(card->shortname, "OPTi %s", card->driver);
881 #if defined(CS4231) || defined(OPTi93X)
882 	sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d&%d",
883 		card->shortname, codec->pcm->name,
884 		chip->wss_base + 4, irq, dma1, xdma2);
885 #else
886 	sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d",
887 		card->shortname, codec->pcm->name, chip->wss_base + 4, irq,
888 		dma1);
889 #endif	/* CS4231 || OPTi93X */
890 
891 	if (mpu_port <= 0 || mpu_port == SNDRV_AUTO_PORT)
892 		rmidi = NULL;
893 	else {
894 		error = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
895 				mpu_port, 0, mpu_irq, &rmidi);
896 		if (error)
897 			snd_printk(KERN_WARNING "no MPU-401 device at 0x%lx?\n",
898 				   mpu_port);
899 	}
900 
901 	if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
902 		struct snd_opl3 *opl3 = NULL;
903 #ifndef OPTi93X
904 		if (chip->hardware == OPTi9XX_HW_82C928 ||
905 		    chip->hardware == OPTi9XX_HW_82C929 ||
906 		    chip->hardware == OPTi9XX_HW_82C924) {
907 			struct snd_opl4 *opl4;
908 			/* assume we have an OPL4 */
909 			snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2),
910 					       0x20, 0x20);
911 			if (snd_opl4_create(card, fm_port, fm_port - 8,
912 					    2, &opl3, &opl4) < 0) {
913 				/* no luck, use OPL3 instead */
914 				snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2),
915 						       0x00, 0x20);
916 			}
917 		}
918 #endif	/* !OPTi93X */
919 		if (!opl3 && snd_opl3_create(card, fm_port, fm_port + 2,
920 					     OPL3_HW_AUTO, 0, &opl3) < 0) {
921 			snd_printk(KERN_WARNING "no OPL device at 0x%lx-0x%lx\n",
922 				   fm_port, fm_port + 4 - 1);
923 		}
924 		if (opl3) {
925 			error = snd_opl3_hwdep_new(opl3, 0, 1, &synth);
926 			if (error < 0)
927 				return error;
928 		}
929 	}
930 
931 	return snd_card_register(card);
932 }
933 
934 static int snd_opti9xx_card_new(struct device *pdev, struct snd_card **cardp)
935 {
936 	struct snd_card *card;
937 	int err;
938 
939 	err = snd_card_new(pdev, index, id, THIS_MODULE,
940 			   sizeof(struct snd_opti9xx), &card);
941 	if (err < 0)
942 		return err;
943 	card->private_free = snd_card_opti9xx_free;
944 	*cardp = card;
945 	return 0;
946 }
947 
948 static int snd_opti9xx_isa_match(struct device *devptr,
949 				 unsigned int dev)
950 {
951 #ifdef CONFIG_PNP
952 	if (snd_opti9xx_pnp_is_probed)
953 		return 0;
954 	if (isapnp)
955 		return 0;
956 #endif
957 	return 1;
958 }
959 
960 static int snd_opti9xx_isa_probe(struct device *devptr,
961 				 unsigned int dev)
962 {
963 	struct snd_card *card;
964 	int error;
965 	static long possible_mpu_ports[] = {0x300, 0x310, 0x320, 0x330, -1};
966 #ifdef OPTi93X
967 	static int possible_irqs[] = {5, 9, 10, 11, 7, -1};
968 #else
969 	static int possible_irqs[] = {9, 10, 11, 7, -1};
970 #endif	/* OPTi93X */
971 	static int possible_mpu_irqs[] = {5, 9, 10, 7, -1};
972 	static int possible_dma1s[] = {3, 1, 0, -1};
973 #if defined(CS4231) || defined(OPTi93X)
974 	static int possible_dma2s[][2] = {{1,-1}, {0,-1}, {-1,-1}, {0,-1}};
975 #endif	/* CS4231 || OPTi93X */
976 
977 	if (mpu_port == SNDRV_AUTO_PORT) {
978 		if ((mpu_port = snd_legacy_find_free_ioport(possible_mpu_ports, 2)) < 0) {
979 			snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
980 			return -EBUSY;
981 		}
982 	}
983 	if (irq == SNDRV_AUTO_IRQ) {
984 		if ((irq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
985 			snd_printk(KERN_ERR "unable to find a free IRQ\n");
986 			return -EBUSY;
987 		}
988 	}
989 	if (mpu_irq == SNDRV_AUTO_IRQ) {
990 		if ((mpu_irq = snd_legacy_find_free_irq(possible_mpu_irqs)) < 0) {
991 			snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
992 			return -EBUSY;
993 		}
994 	}
995 	if (dma1 == SNDRV_AUTO_DMA) {
996 		if ((dma1 = snd_legacy_find_free_dma(possible_dma1s)) < 0) {
997 			snd_printk(KERN_ERR "unable to find a free DMA1\n");
998 			return -EBUSY;
999 		}
1000 	}
1001 #if defined(CS4231) || defined(OPTi93X)
1002 	if (dma2 == SNDRV_AUTO_DMA) {
1003 		if ((dma2 = snd_legacy_find_free_dma(possible_dma2s[dma1 % 4])) < 0) {
1004 			snd_printk(KERN_ERR "unable to find a free DMA2\n");
1005 			return -EBUSY;
1006 		}
1007 	}
1008 #endif
1009 
1010 	error = snd_opti9xx_card_new(devptr, &card);
1011 	if (error < 0)
1012 		return error;
1013 
1014 	if ((error = snd_card_opti9xx_detect(card, card->private_data)) < 0) {
1015 		snd_card_free(card);
1016 		return error;
1017 	}
1018 	if ((error = snd_opti9xx_probe(card)) < 0) {
1019 		snd_card_free(card);
1020 		return error;
1021 	}
1022 	dev_set_drvdata(devptr, card);
1023 	return 0;
1024 }
1025 
1026 static int snd_opti9xx_isa_remove(struct device *devptr,
1027 				  unsigned int dev)
1028 {
1029 	snd_card_free(dev_get_drvdata(devptr));
1030 	return 0;
1031 }
1032 
1033 #ifdef CONFIG_PM
1034 static int snd_opti9xx_suspend(struct snd_card *card)
1035 {
1036 	struct snd_opti9xx *chip = card->private_data;
1037 
1038 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1039 	chip->codec->suspend(chip->codec);
1040 	return 0;
1041 }
1042 
1043 static int snd_opti9xx_resume(struct snd_card *card)
1044 {
1045 	struct snd_opti9xx *chip = card->private_data;
1046 	int error, xdma2;
1047 #if defined(CS4231) || defined(OPTi93X)
1048 	xdma2 = dma2;
1049 #else
1050 	xdma2 = -1;
1051 #endif
1052 
1053 	error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
1054 				      mpu_port, mpu_irq);
1055 	if (error)
1056 		return error;
1057 	chip->codec->resume(chip->codec);
1058 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1059 	return 0;
1060 }
1061 
1062 static int snd_opti9xx_isa_suspend(struct device *dev, unsigned int n,
1063 				   pm_message_t state)
1064 {
1065 	return snd_opti9xx_suspend(dev_get_drvdata(dev));
1066 }
1067 
1068 static int snd_opti9xx_isa_resume(struct device *dev, unsigned int n)
1069 {
1070 	return snd_opti9xx_resume(dev_get_drvdata(dev));
1071 }
1072 #endif
1073 
1074 static struct isa_driver snd_opti9xx_driver = {
1075 	.match		= snd_opti9xx_isa_match,
1076 	.probe		= snd_opti9xx_isa_probe,
1077 	.remove		= snd_opti9xx_isa_remove,
1078 #ifdef CONFIG_PM
1079 	.suspend	= snd_opti9xx_isa_suspend,
1080 	.resume		= snd_opti9xx_isa_resume,
1081 #endif
1082 	.driver		= {
1083 		.name	= DEV_NAME
1084 	},
1085 };
1086 
1087 #ifdef CONFIG_PNP
1088 static int snd_opti9xx_pnp_probe(struct pnp_card_link *pcard,
1089 				 const struct pnp_card_device_id *pid)
1090 {
1091 	struct snd_card *card;
1092 	int error, hw;
1093 	struct snd_opti9xx *chip;
1094 
1095 	if (snd_opti9xx_pnp_is_probed)
1096 		return -EBUSY;
1097 	if (! isapnp)
1098 		return -ENODEV;
1099 	error = snd_opti9xx_card_new(&pcard->card->dev, &card);
1100 	if (error < 0)
1101 		return error;
1102 	chip = card->private_data;
1103 
1104 	hw = snd_card_opti9xx_pnp(chip, pcard, pid);
1105 	switch (hw) {
1106 	case 0x0924:
1107 		hw = OPTi9XX_HW_82C924;
1108 		break;
1109 	case 0x0925:
1110 		hw = OPTi9XX_HW_82C925;
1111 		break;
1112 	case 0x0931:
1113 		hw = OPTi9XX_HW_82C931;
1114 		break;
1115 	default:
1116 		snd_card_free(card);
1117 		return -ENODEV;
1118 	}
1119 
1120 	if ((error = snd_opti9xx_init(chip, hw))) {
1121 		snd_card_free(card);
1122 		return error;
1123 	}
1124 	error = snd_opti9xx_read_check(chip);
1125 	if (error) {
1126 		snd_printk(KERN_ERR "OPTI chip not found\n");
1127 		snd_card_free(card);
1128 		return error;
1129 	}
1130 	if ((error = snd_opti9xx_probe(card)) < 0) {
1131 		snd_card_free(card);
1132 		return error;
1133 	}
1134 	pnp_set_card_drvdata(pcard, card);
1135 	snd_opti9xx_pnp_is_probed = 1;
1136 	return 0;
1137 }
1138 
1139 static void snd_opti9xx_pnp_remove(struct pnp_card_link *pcard)
1140 {
1141 	snd_card_free(pnp_get_card_drvdata(pcard));
1142 	pnp_set_card_drvdata(pcard, NULL);
1143 	snd_opti9xx_pnp_is_probed = 0;
1144 }
1145 
1146 #ifdef CONFIG_PM
1147 static int snd_opti9xx_pnp_suspend(struct pnp_card_link *pcard,
1148 				   pm_message_t state)
1149 {
1150 	return snd_opti9xx_suspend(pnp_get_card_drvdata(pcard));
1151 }
1152 
1153 static int snd_opti9xx_pnp_resume(struct pnp_card_link *pcard)
1154 {
1155 	return snd_opti9xx_resume(pnp_get_card_drvdata(pcard));
1156 }
1157 #endif
1158 
1159 static struct pnp_card_driver opti9xx_pnpc_driver = {
1160 	.flags		= PNP_DRIVER_RES_DISABLE,
1161 	.name		= DEV_NAME,
1162 	.id_table	= snd_opti9xx_pnpids,
1163 	.probe		= snd_opti9xx_pnp_probe,
1164 	.remove		= snd_opti9xx_pnp_remove,
1165 #ifdef CONFIG_PM
1166 	.suspend	= snd_opti9xx_pnp_suspend,
1167 	.resume		= snd_opti9xx_pnp_resume,
1168 #endif
1169 };
1170 #endif
1171 
1172 #ifdef OPTi93X
1173 #define CHIP_NAME	"82C93x"
1174 #else
1175 #define CHIP_NAME	"82C92x"
1176 #endif
1177 
1178 static int __init alsa_card_opti9xx_init(void)
1179 {
1180 #ifdef CONFIG_PNP
1181 	pnp_register_card_driver(&opti9xx_pnpc_driver);
1182 	if (snd_opti9xx_pnp_is_probed)
1183 		return 0;
1184 	pnp_unregister_card_driver(&opti9xx_pnpc_driver);
1185 #endif
1186 	return isa_register_driver(&snd_opti9xx_driver, 1);
1187 }
1188 
1189 static void __exit alsa_card_opti9xx_exit(void)
1190 {
1191 	if (!snd_opti9xx_pnp_is_probed) {
1192 		isa_unregister_driver(&snd_opti9xx_driver);
1193 		return;
1194 	}
1195 #ifdef CONFIG_PNP
1196 	pnp_unregister_card_driver(&opti9xx_pnpc_driver);
1197 #endif
1198 }
1199 
1200 module_init(alsa_card_opti9xx_init)
1201 module_exit(alsa_card_opti9xx_exit)
1202