summaryrefslogtreecommitdiffstats
path: root/sound/isa/sc6000.c
blob: 782010608ef425e51f26e56d4a41335d6459dd9e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
/*
 *  Driver for Gallant SC-6000 soundcard. This card is also known as
 *  Audio Excel DSP 16 or Zoltrix AV302.
 *  These cards use CompuMedia ASC-9308 chip + AD1848 codec.
 *
 *  Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
 *
 *  I don't have documentation for this card. I used the driver
 *  for OSS/Free included in the kernel source as reference.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/isa.h>
#include <linux/io.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/opl3.h>
#include <sound/mpu401.h>
#include <sound/control.h>
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>

MODULE_AUTHOR("Krzysztof Helt");
MODULE_DESCRIPTION("Gallant SC-6000");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
			"{AudioExcel, Audio Excel DSP 16},"
			"{Zoltrix, AV302}}");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220, 0x240 */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 11 */
static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x530, 0xe80 */
static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
						/* 0x300, 0x310, 0x320, 0x330 */
static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 0 */
static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0, 1, 3 */

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
module_param_array(mss_port, long, NULL, 0444);
MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
module_param_array(mpu_port, long, NULL, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
module_param_array(irq, int, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
module_param_array(mpu_irq, int, NULL, 0444);
MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
module_param_array(dma, int, NULL, 0444);
MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");

/*
 * Commands of SC6000's DSP (SBPRO+special).
 * Some of them are COMMAND_xx, in the future they may change.
 */
#define WRITE_MDIRQ_CFG	0x50	/* Set M&I&DRQ mask (the real config)	*/
#define COMMAND_52	0x52	/*					*/
#define READ_HARD_CFG	0x58	/* Read Hardware Config (I/O base etc)	*/
#define COMMAND_5C	0x5c	/*					*/
#define COMMAND_60	0x60	/*					*/
#define COMMAND_66	0x66	/*					*/
#define COMMAND_6C	0x6c	/*					*/
#define COMMAND_6E	0x6e	/*					*/
#define COMMAND_88	0x88	/* Unknown command 			*/
#define DSP_INIT_MSS	0x8c	/* Enable Microsoft Sound System mode	*/
#define COMMAND_C5	0xc5	/*					*/
#define GET_DSP_VERSION	0xe1	/* Get DSP Version			*/
#define GET_DSP_COPYRIGHT 0xe3	/* Get DSP Copyright			*/

/*
 * Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
 * to have the actual I/O port.
 * Register permissions are:
 * (wo) == Write Only
 * (ro) == Read  Only
 * (w-) == Write
 * (r-) == Read
 */
#define DSP_RESET	0x06	/* offset of DSP RESET		(wo) */
#define DSP_READ	0x0a	/* offset of DSP READ		(ro) */
#define DSP_WRITE	0x0c	/* offset of DSP WRITE		(w-) */
#define DSP_COMMAND	0x0c	/* offset of DSP COMMAND	(w-) */
#define DSP_STATUS	0x0c	/* offset of DSP STATUS		(r-) */
#define DSP_DATAVAIL	0x0e	/* offset of DSP DATA AVAILABLE	(ro) */

#define PFX "sc6000: "
#define DRV_NAME "SC-6000"

/* hardware dependent functions */

/*
 * sc6000_irq_to_softcfg - Decode irq number into cfg code.
 */
static __devinit unsigned char sc6000_irq_to_softcfg(int irq)
{
	unsigned char val = 0;

	switch (irq) {
	case 5:
		val = 0x28;
		break;
	case 7:
		val = 0x8;
		break;
	case 9:
		val = 0x10;
		break;
	case 10:
		val = 0x18;
		break;
	case 11:
		val = 0x20;
		break;
	default:
		break;
	}
	return val;
}

/*
 * sc6000_dma_to_softcfg - Decode dma number into cfg code.
 */
static __devinit unsigned char sc6000_dma_to_softcfg(int dma)
{
	unsigned char val = 0;

	switch (dma) {
	case 0:
		val = 1;
		break;
	case 1:
		val = 2;
		break;
	case 3:
		val = 3;
		break;
	default:
		break;
	}
	return val;
}

/*
 * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
 */
static __devinit unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
{
	unsigned char val = 0;

	switch (mpu_irq) {
	case 5:
		val = 4;
		break;
	case 7:
		val = 0x44;
		break;
	case 9:
		val = 0x84;
		break;
	case 10:
		val = 0xc4;
		break;
	default:
		break;
	}
	return val;
}

static __devinit int sc6000_wait_data(char __iomem *vport)
{
	int loop = 1000;
	unsigned char val = 0;

	do {
		val = ioread8(vport + DSP_DATAVAIL);
		if (val & 0x80)
			return 0;
		cpu_relax();
	} while (loop--);

	return -EAGAIN;
}

static __devinit int sc6000_read(char __iomem *vport)
{
	if (sc6000_wait_data(vport))
		return -EBUSY;

	return ioread8(vport + DSP_READ);

}

static __devinit int sc6000_write(char __iomem *vport, int cmd)
{
	unsigned char val;
	int loop = 500000;

	do {
		val = ioread8(vport + DSP_STATUS);
		/*
		 * DSP ready to receive data if bit 7 of val == 0
		 */
		if (!(val & 0x80)) {
			iowrite8(cmd, vport + DSP_COMMAND);
			return 0;
		}
		cpu_relax();
	} while (loop--);

	snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);

	return -EIO;
}

static int __devinit sc6000_dsp_get_answer(char __iomem *vport, int command,
					   char *data, int data_len)
{
	int len = 0;

	if (sc6000_write(vport, command)) {
		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
		return -EIO;
	}

	do {
		int val = sc6000_read(vport);

		if (val < 0)
			break;

		data[len++] = val;

	} while (len < data_len);

	/*
	 * If no more data available, return to the caller, no error if len>0.
	 * We have no other way to know when the string is finished.
	 */
	return len ? len : -EIO;
}

static int __devinit sc6000_dsp_reset(char __iomem *vport)
{
	iowrite8(1, vport + DSP_RESET);
	udelay(10);
	iowrite8(0, vport + DSP_RESET);
	udelay(20);
	if (sc6000_read(vport) == 0xaa)
		return 0;
	return -ENODEV;
}

/* detection and initialization */
static int __devinit sc6000_cfg_write(char __iomem *vport,
				      unsigned char softcfg)
{

	if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
		return -EIO;
	}
	if (sc6000_write(vport, softcfg)) {
		snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
		return -EIO;
	}
	return 0;
}

static int __devinit sc6000_setup_board(char __iomem *vport, int config)
{
	int loop = 10;

	do {
		if (sc6000_write(vport, COMMAND_88)) {
			snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
				   COMMAND_88);
			return -EIO;
		}
	} while ((sc6000_wait_data(vport) < 0) && loop--);

	if (sc6000_read(vport) < 0) {
		snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
			   COMMAND_88);
		return -EIO;
	}

	if (sc6000_cfg_write(vport, config))
		return -ENODEV;

	return 0;
}

static int __devinit sc6000_init_mss(char __iomem *vport, int config,
				     char __iomem *vmss_port, int mss_config)
{
	if (sc6000_write(vport, DSP_INIT_MSS)) {
		snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
			   DSP_INIT_MSS);
		return -EIO;
	}

	msleep(10);

	if (sc6000_cfg_write(vport, config))
		return -EIO;

	iowrite8(mss_config, vmss_port);

	return 0;
}

static int __devinit sc6000_init_board(char __iomem *vport, int irq, int dma,
					char __iomem *vmss_port, int mpu_irq)
{
	char answer[15];
	char version[2];
	int mss_config = sc6000_irq_to_softcfg(irq) |
			 sc6000_dma_to_softcfg(dma);
	int config = mss_config |
		     sc6000_mpu_irq_to_softcfg(mpu_irq);
	int err;

	err = sc6000_dsp_reset(vport);
	if (err < 0) {
		snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
		return err;
	}

	memset(answer, 0, sizeof(answer));
	err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
	if (err <= 0) {
		snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
		return -ENODEV;
	}
	/*
	 * My SC-6000 card return "SC-6000" in DSPCopyright, so
	 * if we have something different, we have to be warned.
	 * Mine returns "SC-6000A " - KH
	 */
	if (strncmp("SC-6000", answer, 7))
		snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");

	if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
		snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
		return -ENODEV;
	}
	printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
		answer, version[0], version[1]);

	/*
	 * 0x0A == (IRQ 7, DMA 1, MIRQ 0)
	 */
	err = sc6000_cfg_write(vport, 0x0a);
	if (err < 0) {
		snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
		return -EFAULT;
	}

	err = sc6000_setup_board(vport, config);
	if (err < 0) {
		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
		return -ENODEV;
	}

	err = sc6000_init_mss(vport, config, vmss_port, mss_config);
	if (err < 0) {
		snd_printk(KERN_ERR "Can not initialize "
			   "Microsoft Sound System mode.\n");
		return -ENODEV;
	}

	return 0;
}

static int __devinit snd_sc6000_mixer(struct snd_wss *chip)
{
	struct snd_card *card = chip->card;
	struct snd_ctl_elem_id id1, id2;
	int err;

	memset(&id1, 0, sizeof(id1));
	memset(&id2, 0, sizeof(id2));
	id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	/* reassign AUX0 to FM */
	strcpy(id1.name, "Aux Playback Switch");
	strcpy(id2.name, "FM Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	strcpy(id1.name, "Aux Playback Volume");
	strcpy(id2.name, "FM Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	/* reassign AUX1 to CD */
	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
	strcpy(id2.name, "CD Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	strcpy(id1.name, "Aux Playback Volume");
	strcpy(id2.name, "CD Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	return 0;
}

static int __devinit snd_sc6000_match(struct device *devptr, unsigned int dev)
{
	if (!enable[dev])
		return 0;
	if (port[dev] == SNDRV_AUTO_PORT) {
		printk(KERN_ERR PFX "specify IO port\n");
		return 0;
	}
	if (mss_port[dev] == SNDRV_AUTO_PORT) {
		printk(KERN_ERR PFX "specify MSS port\n");
		return 0;
	}
	if (port[dev] != 0x220 && port[dev] != 0x240) {
		printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
		return 0;
	}
	if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
		printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
		return 0;
	}
	if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
		printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
		return 0;
	}
	if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
		printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
		return 0;
	}
	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
	    (mpu_port[dev] & ~0x30L) != 0x300) {
		printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
			mpu_port[dev]);
		return 0;
	}
	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
	    mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
	    !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
		printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
		return 0;
	}
	return 1;
}

static int __devinit snd_sc6000_probe(struct device *devptr, unsigned int dev)
{
	static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
	static int possible_dmas[] = { 1, 3, 0, -1 };
	int err;
	int xirq = irq[dev];
	int xdma = dma[dev];
	struct snd_card *card;
	struct snd_wss *chip;
	struct snd_opl3 *opl3;
	char __iomem *vport;
	char __iomem *vmss_port;


	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
	if (err < 0)
		return err;

	if (xirq == SNDRV_AUTO_IRQ) {
		xirq = snd_legacy_find_free_irq(possible_irqs);
		if (xirq < 0) {
			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
			err = -EBUSY;
			goto err_exit;
		}
	}

	if (xdma == SNDRV_AUTO_DMA) {
		xdma = snd_legacy_find_free_dma(possible_dmas);
		if (xdma < 0) {
			snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
			err = -EBUSY;
			goto err_exit;
		}
	}

	if (!request_region(port[dev], 0x10, DRV_NAME)) {
		snd_printk(KERN_ERR PFX
			   "I/O port region is already in use.\n");
		err = -EBUSY;
		goto err_exit;
	}
	vport = devm_ioport_map(devptr, port[dev], 0x10);
	if (!vport) {
		snd_printk(KERN_ERR PFX
			   "I/O port cannot be iomaped.\n");
		err = -EBUSY;
		goto err_unmap1;
	}

	/* to make it marked as used */
	if (!request_region(mss_port[dev], 4, DRV_NAME)) {
		snd_printk(KERN_ERR PFX
			   "SC-6000 port I/O port region is already in use.\n");
		err = -EBUSY;
		goto err_unmap1;
	}
	vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
	if (!vport) {
		snd_printk(KERN_ERR PFX
			   "MSS port I/O cannot be iomaped.\n");
		err = -EBUSY;
		goto err_unmap2;
	}

	snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
		   port[dev], xirq, xdma,
		   mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);

	err = sc6000_init_board(vport, xirq, xdma, vmss_port, mpu_irq[dev]);
	if (err < 0)
		goto err_unmap2;

	err = snd_wss_create(card, mss_port[dev] + 4,  -1, xirq, xdma, -1,
			     WSS_HW_DETECT, 0, &chip);
	if (err < 0)
		goto err_unmap2;
	card->private_data = chip;

	err = snd_wss_pcm(chip, 0, NULL);
	if (err < 0) {
		snd_printk(KERN_ERR PFX
			   "error creating new WSS PCM device\n");
		goto err_unmap2;
	}
	err = snd_wss_mixer(chip);
	if (err < 0) {
		snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
		goto err_unmap2;
	}
	err = snd_sc6000_mixer(chip);
	if (err < 0) {
		snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
		goto err_unmap2;
	}
	if (snd_opl3_create(card,
			    0x388, 0x388 + 2,
			    OPL3_HW_AUTO, 0, &opl3) < 0) {
		snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
			   0x388, 0x388 + 2);
	} else {
		err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
		if (err < 0)
			goto err_unmap2;
	}

	if (mpu_port[dev] != SNDRV_AUTO_PORT) {
		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
			mpu_irq[dev] = -1;
		if (snd_mpu401_uart_new(card, 0,
					MPU401_HW_MPU401,
					mpu_port[dev], 0,
					mpu_irq[dev], IRQF_DISABLED,
					NULL) < 0)
			snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
					mpu_port[dev]);
	}

	strcpy(card->driver, DRV_NAME);
	strcpy(card->shortname, "SC-6000");
	sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
		mss_port[dev], xirq, xdma);

	snd_card_set_dev(card, devptr);

	err = snd_card_register(card);
	if (err < 0)
		goto err_unmap2;

	dev_set_drvdata(devptr, card);
	return 0;

err_unmap2:
	release_region(mss_port[dev], 4);
err_unmap1:
	release_region(port[dev], 0x10);
err_exit:
	snd_card_free(card);
	return err;
}

static int __devexit snd_sc6000_remove(struct device *devptr, unsigned int dev)
{
	release_region(port[dev], 0x10);
	release_region(mss_port[dev], 4);

	snd_card_free(dev_get_drvdata(devptr));
	dev_set_drvdata(devptr, NULL);
	return 0;
}

static struct isa_driver snd_sc6000_driver = {
	.match		= snd_sc6000_match,
	.probe		= snd_sc6000_probe,
	.remove		= __devexit_p(snd_sc6000_remove),
	/* FIXME: suspend/resume */
	.driver		= {
		.name	= DRV_NAME,
	},
};


static int __init alsa_card_sc6000_init(void)
{
	return isa_register_driver(&snd_sc6000_driver, SNDRV_CARDS);
}

static void __exit alsa_card_sc6000_exit(void)
{
	isa_unregister_driver(&snd_sc6000_driver);
}

module_init(alsa_card_sc6000_init)
module_exit(alsa_card_sc6000_exit)
OpenPOWER on IntegriCloud