summaryrefslogtreecommitdiff
path: root/sound/oss/sb_mixer.c
blob: f8f3b7a66b7377fcc25fc84b76c8b9b63af44181 (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
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
/*
 * sound/oss/sb_mixer.c
 *
 * The low level mixer driver for the Sound Blaster compatible cards.
 */
/*
 * Copyright (C) by Hannu Savolainen 1993-1997
 *
 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 * Version 2 (June 1991). See the "COPYING" file distributed with this software
 * for more info.
 *
 *
 * Thomas Sailer				: ioctl code reworked (vmalloc/vfree removed)
 * Rolf Fokkens (Dec 20 1998)	: Moved ESS stuff into sb_ess.[ch]
 * Stanislav Voronyi <stas@esc.kharkov.com>	: Support for AWE 3DSE device (Jun 7 1999)
 */

#include <linux/slab.h>

#include "sound_config.h"

#define __SB_MIXER_C__

#include "sb.h"
#include "sb_mixer.h"

#include "sb_ess.h"

#define SBPRO_RECORDING_DEVICES	(SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD)

/* Same as SB Pro, unless I find otherwise */
#define SGNXPRO_RECORDING_DEVICES SBPRO_RECORDING_DEVICES

#define SBPRO_MIXER_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE | SOUND_MASK_MIC | \
					 SOUND_MASK_CD | SOUND_MASK_VOLUME)

/* SG NX Pro has treble and bass settings on the mixer. The 'speaker'
 * channel is the COVOX/DisneySoundSource emulation volume control
 * on the mixer. It does NOT control speaker volume. Should have own
 * mask eventually?
 */
#define SGNXPRO_MIXER_DEVICES	(SBPRO_MIXER_DEVICES|SOUND_MASK_BASS| \
				 SOUND_MASK_TREBLE|SOUND_MASK_SPEAKER )

#define SB16_RECORDING_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_LINE | SOUND_MASK_MIC | \
					 SOUND_MASK_CD)

#define SB16_OUTFILTER_DEVICES		(SOUND_MASK_LINE | SOUND_MASK_MIC | \
					 SOUND_MASK_CD)

#define SB16_MIXER_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \
					 SOUND_MASK_CD | \
					 SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | \
					 SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | \
					SOUND_MASK_IMIX)

/* These are the only devices that are working at the moment.  Others could
 * be added once they are identified and a method is found to control them.
 */
#define ALS007_MIXER_DEVICES	(SOUND_MASK_SYNTH | SOUND_MASK_LINE | \
				 SOUND_MASK_PCM | SOUND_MASK_MIC | \
				 SOUND_MASK_CD | \
				 SOUND_MASK_VOLUME)

static mixer_tab sbpro_mix = {
MIX_ENT(SOUND_MIXER_VOLUME,	0x22, 7, 4, 0x22, 3, 4),
MIX_ENT(SOUND_MIXER_BASS,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH,	0x26, 7, 4, 0x26, 3, 4),
MIX_ENT(SOUND_MIXER_PCM,	0x04, 7, 4, 0x04, 3, 4),
MIX_ENT(SOUND_MIXER_SPEAKER,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE,	0x2e, 7, 4, 0x2e, 3, 4),
MIX_ENT(SOUND_MIXER_MIC,	0x0a, 2, 3, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_CD,		0x28, 7, 4, 0x28, 3, 4),
MIX_ENT(SOUND_MIXER_IMIX,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV,	0x00, 0, 0, 0x00, 0, 0)
};

static mixer_tab sb16_mix = {
MIX_ENT(SOUND_MIXER_VOLUME,	0x30, 7, 5, 0x31, 7, 5),
MIX_ENT(SOUND_MIXER_BASS,	0x46, 7, 4, 0x47, 7, 4),
MIX_ENT(SOUND_MIXER_TREBLE,	0x44, 7, 4, 0x45, 7, 4),
MIX_ENT(SOUND_MIXER_SYNTH,	0x34, 7, 5, 0x35, 7, 5),
MIX_ENT(SOUND_MIXER_PCM,	0x32, 7, 5, 0x33, 7, 5),
MIX_ENT(SOUND_MIXER_SPEAKER,	0x3b, 7, 2, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE,	0x38, 7, 5, 0x39, 7, 5),
MIX_ENT(SOUND_MIXER_MIC,	0x3a, 7, 5, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_CD,		0x36, 7, 5, 0x37, 7, 5),
MIX_ENT(SOUND_MIXER_IMIX,	0x3c, 0, 1, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV,	0x3f, 7, 2, 0x40, 7, 2), /* Obsolete. Use IGAIN */
MIX_ENT(SOUND_MIXER_IGAIN,	0x3f, 7, 2, 0x40, 7, 2),
MIX_ENT(SOUND_MIXER_OGAIN,	0x41, 7, 2, 0x42, 7, 2)
};

static mixer_tab als007_mix = 
{
MIX_ENT(SOUND_MIXER_VOLUME,	0x62, 7, 4, 0x62, 3, 4),
MIX_ENT(SOUND_MIXER_BASS,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH,	0x66, 7, 4, 0x66, 3, 4),
MIX_ENT(SOUND_MIXER_PCM,	0x64, 7, 4, 0x64, 3, 4),
MIX_ENT(SOUND_MIXER_SPEAKER,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE,	0x6e, 7, 4, 0x6e, 3, 4),
MIX_ENT(SOUND_MIXER_MIC,	0x6a, 2, 3, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_CD,		0x68, 7, 4, 0x68, 3, 4),
MIX_ENT(SOUND_MIXER_IMIX,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV,	0x00, 0, 0, 0x00, 0, 0), /* Obsolete. Use IGAIN */
MIX_ENT(SOUND_MIXER_IGAIN,	0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_OGAIN,	0x00, 0, 0, 0x00, 0, 0)
};


/* SM_GAMES          Master volume is lower and PCM & FM volumes
			     higher than with SB Pro. This improves the
			     sound quality */

static int smg_default_levels[32] =
{
  0x2020,			/* Master Volume */
  0x4b4b,			/* Bass */
  0x4b4b,			/* Treble */
  0x6464,			/* FM */
  0x6464,			/* PCM */
  0x4b4b,			/* PC Speaker */
  0x4b4b,			/* Ext Line */
  0x0000,			/* Mic */
  0x4b4b,			/* CD */
  0x4b4b,			/* Recording monitor */
  0x4b4b,			/* SB PCM */
  0x4b4b,			/* Recording level */
  0x4b4b,			/* Input gain */
  0x4b4b,			/* Output gain */
  0x4040,			/* Line1 */
  0x4040,			/* Line2 */
  0x1515			/* Line3 */
};

static int sb_default_levels[32] =
{
  0x5a5a,			/* Master Volume */
  0x4b4b,			/* Bass */
  0x4b4b,			/* Treble */
  0x4b4b,			/* FM */
  0x4b4b,			/* PCM */
  0x4b4b,			/* PC Speaker */
  0x4b4b,			/* Ext Line */
  0x1010,			/* Mic */
  0x4b4b,			/* CD */
  0x0000,			/* Recording monitor */
  0x4b4b,			/* SB PCM */
  0x4b4b,			/* Recording level */
  0x4b4b,			/* Input gain */
  0x4b4b,			/* Output gain */
  0x4040,			/* Line1 */
  0x4040,			/* Line2 */
  0x1515			/* Line3 */
};

static unsigned char sb16_recmasks_L[SOUND_MIXER_NRDEVICES] =
{
	0x00,	/* SOUND_MIXER_VOLUME	*/
	0x00,	/* SOUND_MIXER_BASS	*/
	0x00,	/* SOUND_MIXER_TREBLE	*/
	0x40,	/* SOUND_MIXER_SYNTH	*/
	0x00,	/* SOUND_MIXER_PCM	*/
	0x00,	/* SOUND_MIXER_SPEAKER	*/
	0x10,	/* SOUND_MIXER_LINE	*/
	0x01,	/* SOUND_MIXER_MIC	*/
	0x04,	/* SOUND_MIXER_CD	*/
	0x00,	/* SOUND_MIXER_IMIX	*/
	0x00,	/* SOUND_MIXER_ALTPCM	*/
	0x00,	/* SOUND_MIXER_RECLEV	*/
	0x00,	/* SOUND_MIXER_IGAIN	*/
	0x00	/* SOUND_MIXER_OGAIN	*/
};

static unsigned char sb16_recmasks_R[SOUND_MIXER_NRDEVICES] =
{
	0x00,	/* SOUND_MIXER_VOLUME	*/
	0x00,	/* SOUND_MIXER_BASS	*/
	0x00,	/* SOUND_MIXER_TREBLE	*/
	0x20,	/* SOUND_MIXER_SYNTH	*/
	0x00,	/* SOUND_MIXER_PCM	*/
	0x00,	/* SOUND_MIXER_SPEAKER	*/
	0x08,	/* SOUND_MIXER_LINE	*/
	0x01,	/* SOUND_MIXER_MIC	*/
	0x02,	/* SOUND_MIXER_CD	*/
	0x00,	/* SOUND_MIXER_IMIX	*/
	0x00,	/* SOUND_MIXER_ALTPCM	*/
	0x00,	/* SOUND_MIXER_RECLEV	*/
	0x00,	/* SOUND_MIXER_IGAIN	*/
	0x00	/* SOUND_MIXER_OGAIN	*/
};

static char     smw_mix_regs[] =	/* Left mixer registers */
{
  0x0b,				/* SOUND_MIXER_VOLUME */
  0x0d,				/* SOUND_MIXER_BASS */
  0x0d,				/* SOUND_MIXER_TREBLE */
  0x05,				/* SOUND_MIXER_SYNTH */
  0x09,				/* SOUND_MIXER_PCM */
  0x00,				/* SOUND_MIXER_SPEAKER */
  0x03,				/* SOUND_MIXER_LINE */
  0x01,				/* SOUND_MIXER_MIC */
  0x07,				/* SOUND_MIXER_CD */
  0x00,				/* SOUND_MIXER_IMIX */
  0x00,				/* SOUND_MIXER_ALTPCM */
  0x00,				/* SOUND_MIXER_RECLEV */
  0x00,				/* SOUND_MIXER_IGAIN */
  0x00,				/* SOUND_MIXER_OGAIN */
  0x00,				/* SOUND_MIXER_LINE1 */
  0x00,				/* SOUND_MIXER_LINE2 */
  0x00				/* SOUND_MIXER_LINE3 */
};

static int      sbmixnum = 1;

static void     sb_mixer_reset(sb_devc * devc);

void sb_mixer_set_stereo(sb_devc * devc, int mode)
{
	sb_chgmixer(devc, OUT_FILTER, STEREO_DAC, (mode ? STEREO_DAC : MONO_DAC));
}

static int detect_mixer(sb_devc * devc)
{
	/* Just trust the mixer is there */
	return 1;
}

static void oss_change_bits(sb_devc *devc, unsigned char *regval, int dev, int chn, int newval)
{
	unsigned char mask;
	int shift;

	mask = (1 << (*devc->iomap)[dev][chn].nbits) - 1;
	newval = (int) ((newval * mask) + 50) / 100;	/* Scale */

	shift = (*devc->iomap)[dev][chn].bitoffs - (*devc->iomap)[dev][LEFT_CHN].nbits + 1;

	*regval &= ~(mask << shift);	/* Mask out previous value */
	*regval |= (newval & mask) << shift;	/* Set the new value */
}

static int sb_mixer_get(sb_devc * devc, int dev)
{
	if (!((1 << dev) & devc->supported_devices))
		return -EINVAL;
	return devc->levels[dev];
}

void smw_mixer_init(sb_devc * devc)
{
	int i;

	sb_setmixer(devc, 0x00, 0x18);	/* Mute unused (Telephone) line */
	sb_setmixer(devc, 0x10, 0x38);	/* Config register 2 */

	devc->supported_devices = 0;
	for (i = 0; i < sizeof(smw_mix_regs); i++)
		if (smw_mix_regs[i] != 0)
			devc->supported_devices |= (1 << i);

	devc->supported_rec_devices = devc->supported_devices &
		~(SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_PCM | SOUND_MASK_VOLUME);
	sb_mixer_reset(devc);
}

int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right)
{
	int regoffs;
	unsigned char val;

	if ((dev < 0) || (dev >= devc->iomap_sz))
		return -EINVAL;

	regoffs = (*devc->iomap)[dev][LEFT_CHN].regno;

	if (regoffs == 0)
		return -EINVAL;

	val = sb_getmixer(devc, regoffs);
	oss_change_bits(devc, &val, dev, LEFT_CHN, left);

	if ((*devc->iomap)[dev][RIGHT_CHN].regno != regoffs)	/*
								 * Change register
								 */
	{
		sb_setmixer(devc, regoffs, val);	/*
							 * Save the old one
							 */
		regoffs = (*devc->iomap)[dev][RIGHT_CHN].regno;

		if (regoffs == 0)
			return left | (left << 8);	/*
							 * Just left channel present
							 */

		val = sb_getmixer(devc, regoffs);	/*
							 * Read the new one
							 */
	}
	oss_change_bits(devc, &val, dev, RIGHT_CHN, right);

	sb_setmixer(devc, regoffs, val);

	return left | (right << 8);
}

static int smw_mixer_set(sb_devc * devc, int dev, int left, int right)
{
	int reg, val;

	switch (dev)
	{
		case SOUND_MIXER_VOLUME:
			sb_setmixer(devc, 0x0b, 96 - (96 * left / 100));	/* 96=mute, 0=max */
			sb_setmixer(devc, 0x0c, 96 - (96 * right / 100));
			break;

		case SOUND_MIXER_BASS:
		case SOUND_MIXER_TREBLE:
			devc->levels[dev] = left | (right << 8);
			/* Set left bass and treble values */
			val = ((devc->levels[SOUND_MIXER_TREBLE] & 0xff) * 16 / (unsigned) 100) << 4;
			val |= ((devc->levels[SOUND_MIXER_BASS] & 0xff) * 16 / (unsigned) 100) & 0x0f;
			sb_setmixer(devc, 0x0d, val);

			/* Set right bass and treble values */
			val = (((devc->levels[SOUND_MIXER_TREBLE] >> 8) & 0xff) * 16 / (unsigned) 100) << 4;
			val |= (((devc->levels[SOUND_MIXER_BASS] >> 8) & 0xff) * 16 / (unsigned) 100) & 0x0f;
			sb_setmixer(devc, 0x0e, val);
		
			break;

		default:
			/* bounds check */
			if (dev < 0 || dev >= ARRAY_SIZE(smw_mix_regs))
				return -EINVAL;
			reg = smw_mix_regs[dev];
			if (reg == 0)
				return -EINVAL;
			sb_setmixer(devc, reg, (24 - (24 * left / 100)) | 0x20);	/* 24=mute, 0=max */
			sb_setmixer(devc, reg + 1, (24 - (24 * right / 100)) | 0x40);
	}

	devc->levels[dev] = left | (right << 8);
	return left | (right << 8);
}

static int sb_mixer_set(sb_devc * devc, int dev, int value)
{
	int left = value & 0x000000ff;
	int right = (value & 0x0000ff00) >> 8;
	int retval;

	if (left > 100)
		left = 100;
	if (right > 100)
		right = 100;

	if ((dev < 0) || (dev > 31))
		return -EINVAL;

	if (!(devc->supported_devices & (1 << dev)))	/*
							 * Not supported
							 */
		return -EINVAL;

	/* Differentiate depending on the chipsets */
	switch (devc->model) {
	case MDL_SMW:
		retval = smw_mixer_set(devc, dev, left, right);
		break;
	case MDL_ESS:
		retval = ess_mixer_set(devc, dev, left, right);
		break;
	default:
		retval = sb_common_mixer_set(devc, dev, left, right);
	}
	if (retval >= 0) devc->levels[dev] = retval;

	return retval;
}

/*
 * set_recsrc doesn't apply to ES188x
 */
static void set_recsrc(sb_devc * devc, int src)
{
	sb_setmixer(devc, RECORD_SRC, (sb_getmixer(devc, RECORD_SRC) & ~7) | (src & 0x7));
}

static int set_recmask(sb_devc * devc, int mask)
{
	int devmask, i;
	unsigned char  regimageL, regimageR;

	devmask = mask & devc->supported_rec_devices;

	switch (devc->model)
	{
		case MDL_SBPRO:
		case MDL_ESS:
		case MDL_JAZZ:
		case MDL_SMW:
			if (devc->model == MDL_ESS && ess_set_recmask (devc, &devmask)) {
				break;
			};
			if (devmask != SOUND_MASK_MIC &&
				devmask != SOUND_MASK_LINE &&
				devmask != SOUND_MASK_CD)
			{
				/*
				 * More than one device selected. Drop the
				 * previous selection
				 */
				devmask &= ~devc->recmask;
			}
			if (devmask != SOUND_MASK_MIC &&
				devmask != SOUND_MASK_LINE &&
				devmask != SOUND_MASK_CD)
			{
				/*
				 * More than one device selected. Default to
				 * mic
				 */
				devmask = SOUND_MASK_MIC;
			}
			if (devmask ^ devc->recmask)	/*
							 *	Input source changed
							 */
			{
				switch (devmask)
				{
					case SOUND_MASK_MIC:
						set_recsrc(devc, SRC__MIC);
						break;

					case SOUND_MASK_LINE:
						set_recsrc(devc, SRC__LINE);
						break;

					case SOUND_MASK_CD:
						set_recsrc(devc, SRC__CD);
						break;

					default:
						set_recsrc(devc, SRC__MIC);
				}
			}
			break;

		case MDL_SB16:
			if (!devmask)
				devmask = SOUND_MASK_MIC;

			if (devc->submodel == SUBMDL_ALS007) 
			{
				switch (devmask) 
				{
					case SOUND_MASK_LINE:
						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_LINE);
						break;
					case SOUND_MASK_CD:
						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_CD);
						break;
					case SOUND_MASK_SYNTH:
						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_SYNTH);
						break;
					default:           /* Also takes care of SOUND_MASK_MIC case */
						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_MIC);
						break;
				}
			}
			else
			{
				regimageL = regimageR = 0;
				for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
				{
					if ((1 << i) & devmask)
					{
						regimageL |= sb16_recmasks_L[i];
						regimageR |= sb16_recmasks_R[i];
					}
					sb_setmixer (devc, SB16_IMASK_L, regimageL);
					sb_setmixer (devc, SB16_IMASK_R, regimageR);
				}
			}
			break;
	}
	devc->recmask = devmask;
	return devc->recmask;
}

static int set_outmask(sb_devc * devc, int mask)
{
	int devmask, i;
	unsigned char  regimage;

	devmask = mask & devc->supported_out_devices;

	switch (devc->model)
	{
		case MDL_SB16:
			if (devc->submodel == SUBMDL_ALS007) 
				break;
			else
			{
				regimage = 0;
				for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
				{
					if ((1 << i) & devmask)
					{
						regimage |= (sb16_recmasks_L[i] | sb16_recmasks_R[i]);
					}
					sb_setmixer (devc, SB16_OMASK, regimage);
				}
			}
			break;
		default:
			break;
	}

	devc->outmask = devmask;
	return devc->outmask;
}

static int sb_mixer_ioctl(int dev, unsigned int cmd, void __user *arg)
{
	sb_devc *devc = mixer_devs[dev]->devc;
	int val, ret;
	int __user *p = arg;

	/*
	 * Use ioctl(fd, SOUND_MIXER_AGC, &mode) to turn AGC off (0) or on (1).
	 * Use ioctl(fd, SOUND_MIXER_3DSE, &mode) to turn 3DSE off (0) or on (1)
	 *					      or mode==2 put 3DSE state to mode.
	 */
	if (devc->model == MDL_SB16) {
		if (cmd == SOUND_MIXER_AGC) 
		{
			if (get_user(val, p))
				return -EFAULT;
			sb_setmixer(devc, 0x43, (~val) & 0x01);
			return 0;
		}
		if (cmd == SOUND_MIXER_3DSE) 
		{
			/* I put here 15, but I don't know the exact version.
			   At least my 4.13 havn't 3DSE, 4.16 has it. */
			if (devc->minor < 15)
				return -EINVAL;
			if (get_user(val, p))
				return -EFAULT;
			if (val == 0 || val == 1)
				sb_chgmixer(devc, AWE_3DSE, 0x01, val);
			else if (val == 2)
			{
				ret = sb_getmixer(devc, AWE_3DSE)&0x01;
				return put_user(ret, p);
			}
			else
				return -EINVAL;
			return 0;
		}
	}
	if (((cmd >> 8) & 0xff) == 'M') 
	{
		if (_SIOC_DIR(cmd) & _SIOC_WRITE) 
		{
			if (get_user(val, p))
				return -EFAULT;
			switch (cmd & 0xff) 
			{
				case SOUND_MIXER_RECSRC:
					ret = set_recmask(devc, val);
					break;

				case SOUND_MIXER_OUTSRC:
					ret = set_outmask(devc, val);
					break;

				default:
					ret = sb_mixer_set(devc, cmd & 0xff, val);
			}
		}
		else switch (cmd & 0xff) 
		{
			case SOUND_MIXER_RECSRC:
				ret = devc->recmask;
				break;
				  
			case SOUND_MIXER_OUTSRC:
				ret = devc->outmask;
				break;
				  
			case SOUND_MIXER_DEVMASK:
				ret = devc->supported_devices;
				break;
				  
			case SOUND_MIXER_STEREODEVS:
				ret = devc->supported_devices;
				/* The ESS seems to have stereo mic controls */
				if (devc->model == MDL_ESS)
					ret &= ~(SOUND_MASK_SPEAKER|SOUND_MASK_IMIX);
				else if (devc->model != MDL_JAZZ && devc->model != MDL_SMW)
					ret &= ~(SOUND_MASK_MIC | SOUND_MASK_SPEAKER | SOUND_MASK_IMIX);
				break;
				  
			case SOUND_MIXER_RECMASK:
				ret = devc->supported_rec_devices;
				break;
				  
			case SOUND_MIXER_OUTMASK:
				ret = devc->supported_out_devices;
				break;
				  
			case SOUND_MIXER_CAPS:
				ret = devc->mixer_caps;
				break;
				    
			default:
				ret = sb_mixer_get(devc, cmd & 0xff);
				break;
		}
		return put_user(ret, p); 
	} else
		return -EINVAL;
}

static struct mixer_operations sb_mixer_operations =
{
	.owner	= THIS_MODULE,
	.id	= "SB",
	.name	= "Sound Blaster",
	.ioctl	= sb_mixer_ioctl
};

static struct mixer_operations als007_mixer_operations =
{
	.owner	= THIS_MODULE,
	.id	= "ALS007",
	.name	= "Avance ALS-007",
	.ioctl	= sb_mixer_ioctl
};

static void sb_mixer_reset(sb_devc * devc)
{
	char name[32];
	int i;

	sprintf(name, "SB_%d", devc->sbmixnum);

	if (devc->sbmo.sm_games)
		devc->levels = load_mixer_volumes(name, smg_default_levels, 1);
	else
		devc->levels = load_mixer_volumes(name, sb_default_levels, 1);

	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
		sb_mixer_set(devc, i, devc->levels[i]);

	if (devc->model != MDL_ESS || !ess_mixer_reset (devc)) {
		set_recmask(devc, SOUND_MASK_MIC);
	};
}

int sb_mixer_init(sb_devc * devc, struct module *owner)
{
	int mixer_type = 0;
	int m;

	devc->sbmixnum = sbmixnum++;
	devc->levels = NULL;

	sb_setmixer(devc, 0x00, 0);	/* Reset mixer */

	if (!(mixer_type = detect_mixer(devc)))
		return 0;	/* No mixer. Why? */

	switch (devc->model)
	{
		case MDL_ESSPCI:
		case MDL_YMPCI:
		case MDL_SBPRO:
		case MDL_AZTECH:
		case MDL_JAZZ:
			devc->mixer_caps = SOUND_CAP_EXCL_INPUT;
			devc->supported_devices = SBPRO_MIXER_DEVICES;
			devc->supported_rec_devices = SBPRO_RECORDING_DEVICES;
			devc->iomap = &sbpro_mix;
			devc->iomap_sz = ARRAY_SIZE(sbpro_mix);
			break;

		case MDL_ESS:
			ess_mixer_init (devc);
			break;

		case MDL_SMW:
			devc->mixer_caps = SOUND_CAP_EXCL_INPUT;
			devc->supported_devices = 0;
			devc->supported_rec_devices = 0;
			devc->iomap = &sbpro_mix;
			devc->iomap_sz = ARRAY_SIZE(sbpro_mix);
			smw_mixer_init(devc);
			break;

		case MDL_SB16:
			devc->mixer_caps = 0;
			devc->supported_rec_devices = SB16_RECORDING_DEVICES;
			devc->supported_out_devices = SB16_OUTFILTER_DEVICES;
			if (devc->submodel != SUBMDL_ALS007)
			{
				devc->supported_devices = SB16_MIXER_DEVICES;
				devc->iomap = &sb16_mix;
				devc->iomap_sz = ARRAY_SIZE(sb16_mix);
			}
			else
			{
				devc->supported_devices = ALS007_MIXER_DEVICES;
				devc->iomap = &als007_mix;
				devc->iomap_sz = ARRAY_SIZE(als007_mix);
			}
			break;

		default:
			printk(KERN_WARNING "sb_mixer: Unsupported mixer type %d\n", devc->model);
			return 0;
	}

	m = sound_alloc_mixerdev();
	if (m == -1)
		return 0;

	mixer_devs[m] = kmalloc(sizeof(struct mixer_operations), GFP_KERNEL);
	if (mixer_devs[m] == NULL)
	{
		printk(KERN_ERR "sb_mixer: Can't allocate memory\n");
		sound_unload_mixerdev(m);
		return 0;
	}

	if (devc->submodel != SUBMDL_ALS007)
		memcpy ((char *) mixer_devs[m], (char *) &sb_mixer_operations, sizeof (struct mixer_operations));
	else
		memcpy ((char *) mixer_devs[m], (char *) &als007_mixer_operations, sizeof (struct mixer_operations));

	mixer_devs[m]->devc = devc;

	if (owner)
			 mixer_devs[m]->owner = owner;
	
	devc->my_mixerdev = m;
	sb_mixer_reset(devc);
	return 1;
}

void sb_mixer_unload(sb_devc *devc)
{
	if (devc->my_mixerdev == -1)
		return;

	kfree(mixer_devs[devc->my_mixerdev]);
	sound_unload_mixerdev(devc->my_mixerdev);
	sbmixnum--;
}