aboutsummaryrefslogtreecommitdiff
path: root/sound/pci/ca0106/ca0106_mixer.c
blob: 97bed1b0899d43dee4bb0771bf3492edcf605739 (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
/*
 *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
 *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
 *  Version: 0.0.16
 *
 *  FEATURES currently supported:
 *    See ca0106_main.c for features.
 * 
 *  Changelog:
 *    Support interrupts per period.
 *    Removed noise from Center/LFE channel when in Analog mode.
 *    Rename and remove mixer controls.
 *  0.0.6
 *    Use separate card based DMA buffer for periods table list.
 *  0.0.7
 *    Change remove and rename ctrls into lists.
 *  0.0.8
 *    Try to fix capture sources.
 *  0.0.9
 *    Fix AC3 output.
 *    Enable S32_LE format support.
 *  0.0.10
 *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
 *  0.0.11
 *    Add Model name recognition.
 *  0.0.12
 *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
 *    Remove redundent "voice" handling.
 *  0.0.13
 *    Single trigger call for multi channels.
 *  0.0.14
 *    Set limits based on what the sound card hardware can do.
 *    playback periods_min=2, periods_max=8
 *    capture hw constraints require period_size = n * 64 bytes.
 *    playback hw constraints require period_size = n * 64 bytes.
 *  0.0.15
 *    Separated ca0106.c into separate functional .c files.
 *  0.0.16
 *    Modified Copyright message.
 *
 *  This code was initally based on code from ALSA's emu10k1x.c which is:
 *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 *
 *   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 <sound/driver.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/info.h>

#include "ca0106.h"

static int snd_ca0106_shared_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_ca0106_shared_spdif_get(snd_kcontrol_t * kcontrol,
					snd_ctl_elem_value_t * ucontrol)
{
	ca0106_t *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->spdif_enable;
	return 0;
}

static int snd_ca0106_shared_spdif_put(snd_kcontrol_t * kcontrol,
					snd_ctl_elem_value_t * ucontrol)
{
	ca0106_t *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;
	u32 mask;

	val = ucontrol->value.enumerated.item[0] ;
	change = (emu->spdif_enable != val);
	if (change) {
		emu->spdif_enable = val;
		if (val == 1) {
			/* Digital */
			snd_ca0106_ptr_write(emu, SPDIF_SELECT1, 0, 0xf);
			snd_ca0106_ptr_write(emu, SPDIF_SELECT2, 0, 0x0b000000);
			snd_ca0106_ptr_write(emu, CAPTURE_CONTROL, 0,
				snd_ca0106_ptr_read(emu, CAPTURE_CONTROL, 0) & ~0x1000);
			mask = inl(emu->port + GPIO) & ~0x101;
			outl(mask, emu->port + GPIO);

		} else {
			/* Analog */
			snd_ca0106_ptr_write(emu, SPDIF_SELECT1, 0, 0xf);
			snd_ca0106_ptr_write(emu, SPDIF_SELECT2, 0, 0x000b0000);
			snd_ca0106_ptr_write(emu, CAPTURE_CONTROL, 0,
				snd_ca0106_ptr_read(emu, CAPTURE_CONTROL, 0) | 0x1000);
			mask = inl(emu->port + GPIO) | 0x101;
			outl(mask, emu->port + GPIO);
		}
	}
        return change;
}

static snd_kcontrol_new_t snd_ca0106_shared_spdif __devinitdata =
{
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"SPDIF Out",
	.info =		snd_ca0106_shared_spdif_info,
	.get =		snd_ca0106_shared_spdif_get,
	.put =		snd_ca0106_shared_spdif_put
};

static int snd_ca0106_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	static char *texts[6] = { "SPDIF out", "i2s mixer out", "SPDIF in", "i2s in", "AC97 in", "SRC out" };

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 6;
	if (uinfo->value.enumerated.item > 5)
                uinfo->value.enumerated.item = 5;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_ca0106_capture_source_get(snd_kcontrol_t * kcontrol,
					snd_ctl_elem_value_t * ucontrol)
{
	ca0106_t *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->capture_source;
	return 0;
}

static int snd_ca0106_capture_source_put(snd_kcontrol_t * kcontrol,
					snd_ctl_elem_value_t * ucontrol)
{
	ca0106_t *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;
	u32 mask;
	u32 source;

	val = ucontrol->value.enumerated.item[0] ;
	change = (emu->capture_source != val);
	if (change) {
		emu->capture_source = val;
		source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
		mask = snd_ca0106_ptr_read(emu, CAPTURE_SOURCE, 0) & 0xffff;
		snd_ca0106_ptr_write(emu, CAPTURE_SOURCE, 0, source | mask);
	}
        return change;
}

static snd_kcontrol_new_t snd_ca0106_capture_source __devinitdata =
{
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Capture Source",
	.info =		snd_ca0106_capture_source_info,
	.get =		snd_ca0106_capture_source_get,
	.put =		snd_ca0106_capture_source_put
};

static int snd_ca0106_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int snd_ca0106_spdif_get(snd_kcontrol_t * kcontrol,
                                 snd_ctl_elem_value_t * ucontrol)
{
	ca0106_t *emu = snd_kcontrol_chip(kcontrol);
	unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

	ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
	ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
	ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
	ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
        return 0;
}

static int snd_ca0106_spdif_get_mask(snd_kcontrol_t * kcontrol,
				      snd_ctl_elem_value_t * ucontrol)
{
	ucontrol->value.iec958.status[0] = 0xff;
	ucontrol->value.iec958.status[1] = 0xff;
	ucontrol->value.iec958.status[2] = 0xff;
	ucontrol->value.iec958.status[3] = 0xff;
        return 0;
}

static int snd_ca0106_spdif_put(snd_kcontrol_t * kcontrol,
                                 snd_ctl_elem_value_t * ucontrol)
{
	ca0106_t *emu = snd_kcontrol_chip(kcontrol);
	unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
	int change;
	unsigned int val;

	val = (ucontrol->value.iec958.status[0] << 0) |
	      (ucontrol->value.iec958.status[1] << 8) |
	      (ucontrol->value.iec958.status[2] << 16) |
	      (ucontrol->value.iec958.status[3] << 24);
	change = val != emu->spdif_bits[idx];
	if (change) {
		snd_ca0106_ptr_write(emu, SPCS0 + idx, 0, val);
		emu->spdif_bits[idx] = val;
	}
        return change;
}

static snd_kcontrol_new_t snd_ca0106_spdif_mask_control =
{
	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
	.count =	4,
        .info =         snd_ca0106_spdif_info,
        .get =          snd_ca0106_spdif_get_mask
};

static snd_kcontrol_new_t snd_ca0106_spdif_control =
{
        .iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
	.count =	4,
        .info =         snd_ca0106_spdif_info,
        .get =          snd_ca0106_spdif_get,
        .put =          snd_ca0106_spdif_put
};

static int snd_ca0106_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        uinfo->count = 2;
        uinfo->value.integer.min = 0;
        uinfo->value.integer.max = 255;
        return 0;
}

static int snd_ca0106_volume_get(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol, int reg, int channel_id)
{
        ca0106_t *emu = snd_kcontrol_chip(kcontrol);
        unsigned int value;

        value = snd_ca0106_ptr_read(emu, reg, channel_id);
        ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
        ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
        return 0;
}

static int snd_ca0106_volume_get_spdif_front(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_FRONT_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}

static int snd_ca0106_volume_get_spdif_center_lfe(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_CENTER_LFE_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_get_spdif_unknown(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_UNKNOWN_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_get_spdif_rear(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_REAR_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_get_analog_front(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_FRONT_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}

static int snd_ca0106_volume_get_analog_center_lfe(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_CENTER_LFE_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_get_analog_unknown(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_UNKNOWN_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_get_analog_rear(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_REAR_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}

static int snd_ca0106_volume_get_feedback(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = 1;
	int reg = CAPTURE_CONTROL;
        return snd_ca0106_volume_get(kcontrol, ucontrol, reg, channel_id);
}
                                                                                                                           
static int snd_ca0106_volume_put(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol, int reg, int channel_id)
{
        ca0106_t *emu = snd_kcontrol_chip(kcontrol);
        unsigned int value;
        //value = snd_ca0106_ptr_read(emu, reg, channel_id);
        //value = value & 0xffff;
        value = ((0xff - ucontrol->value.integer.value[0]) << 24) | ((0xff - ucontrol->value.integer.value[1]) << 16);
        value = value | ((0xff - ucontrol->value.integer.value[0]) << 8) | ((0xff - ucontrol->value.integer.value[1]) );
        snd_ca0106_ptr_write(emu, reg, channel_id, value);
        return 1;
}
static int snd_ca0106_volume_put_spdif_front(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_FRONT_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_put_spdif_center_lfe(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_CENTER_LFE_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_put_spdif_unknown(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_UNKNOWN_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_put_spdif_rear(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_REAR_CHANNEL;
	int reg = PLAYBACK_VOLUME1;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_put_analog_front(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_FRONT_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_put_analog_center_lfe(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_CENTER_LFE_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_put_analog_unknown(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_UNKNOWN_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}
static int snd_ca0106_volume_put_analog_rear(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = CONTROL_REAR_CHANNEL;
	int reg = PLAYBACK_VOLUME2;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}

static int snd_ca0106_volume_put_feedback(snd_kcontrol_t * kcontrol,
                                       snd_ctl_elem_value_t * ucontrol)
{
	int channel_id = 1;
	int reg = CAPTURE_CONTROL;
        return snd_ca0106_volume_put(kcontrol, ucontrol, reg, channel_id);
}

static snd_kcontrol_new_t snd_ca0106_volume_control_analog_front =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "Analog Front Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_analog_front,
        .put =          snd_ca0106_volume_put_analog_front
};
static snd_kcontrol_new_t snd_ca0106_volume_control_analog_center_lfe =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "Analog Center/LFE Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_analog_center_lfe,
        .put =          snd_ca0106_volume_put_analog_center_lfe
};
static snd_kcontrol_new_t snd_ca0106_volume_control_analog_unknown =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "Analog Unknown Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_analog_unknown,
        .put =          snd_ca0106_volume_put_analog_unknown
};
static snd_kcontrol_new_t snd_ca0106_volume_control_analog_rear =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "Analog Rear Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_analog_rear,
        .put =          snd_ca0106_volume_put_analog_rear
};
static snd_kcontrol_new_t snd_ca0106_volume_control_spdif_front =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "SPDIF Front Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_spdif_front,
        .put =          snd_ca0106_volume_put_spdif_front
};
static snd_kcontrol_new_t snd_ca0106_volume_control_spdif_center_lfe =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "SPDIF Center/LFE Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_spdif_center_lfe,
        .put =          snd_ca0106_volume_put_spdif_center_lfe
};
static snd_kcontrol_new_t snd_ca0106_volume_control_spdif_unknown =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "SPDIF Unknown Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_spdif_unknown,
        .put =          snd_ca0106_volume_put_spdif_unknown
};
static snd_kcontrol_new_t snd_ca0106_volume_control_spdif_rear =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "SPDIF Rear Volume",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_spdif_rear,
        .put =          snd_ca0106_volume_put_spdif_rear
};

static snd_kcontrol_new_t snd_ca0106_volume_control_feedback =
{
        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
        .name =         "CAPTURE feedback into PLAYBACK",
        .info =         snd_ca0106_volume_info,
        .get =          snd_ca0106_volume_get_feedback,
        .put =          snd_ca0106_volume_put_feedback
};


static int remove_ctl(snd_card_t *card, const char *name)
{
	snd_ctl_elem_id_t id;
	memset(&id, 0, sizeof(id));
	strcpy(id.name, name);
	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	return snd_ctl_remove_id(card, &id);
}

static snd_kcontrol_t *ctl_find(snd_card_t *card, const char *name)
{
	snd_ctl_elem_id_t sid;
	memset(&sid, 0, sizeof(sid));
	/* FIXME: strcpy is bad. */
	strcpy(sid.name, name);
	sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	return snd_ctl_find_id(card, &sid);
}

static int rename_ctl(snd_card_t *card, const char *src, const char *dst)
{
	snd_kcontrol_t *kctl = ctl_find(card, src);
	if (kctl) {
		strcpy(kctl->id.name, dst);
		return 0;
	}
	return -ENOENT;
}

int __devinit snd_ca0106_mixer(ca0106_t *emu)
{
        int err;
        snd_kcontrol_t *kctl;
        snd_card_t *card = emu->card;
	char **c;
	static char *ca0106_remove_ctls[] = {
		"Master Mono Playback Switch",
		"Master Mono Playback Volume",
		"3D Control - Switch",
		"3D Control Sigmatel - Depth",
		"PCM Playback Switch",
		"PCM Playback Volume",
		"CD Playback Switch",
		"CD Playback Volume",
		"Phone Playback Switch",
		"Phone Playback Volume",
		"Video Playback Switch",
		"Video Playback Volume",
		"PC Speaker Playback Switch",
		"PC Speaker Playback Volume",
		"Mono Output Select",
		"Capture Source",
		"Capture Switch",
		"Capture Volume",
		"External Amplifier",
		"Sigmatel 4-Speaker Stereo Playback Switch",
		"Sigmatel Surround Phase Inversion Playback ",
		NULL
	};
	static char *ca0106_rename_ctls[] = {
		"Master Playback Switch", "Capture Switch",
		"Master Playback Volume", "Capture Volume",
		"Line Playback Switch", "AC97 Line Capture Switch",
		"Line Playback Volume", "AC97 Line Capture Volume",
		"Aux Playback Switch", "AC97 Aux Capture Switch",
		"Aux Playback Volume", "AC97 Aux Capture Volume",
		"Mic Playback Switch", "AC97 Mic Capture Switch",
		"Mic Playback Volume", "AC97 Mic Capture Volume",
		"Mic Select", "AC97 Mic Select",
		"Mic Boost (+20dB)", "AC97 Mic Boost (+20dB)",
		NULL
	};
#if 1
	for (c=ca0106_remove_ctls; *c; c++)
		remove_ctl(card, *c);
	for (c=ca0106_rename_ctls; *c; c += 2)
		rename_ctl(card, c[0], c[1]);
#endif

        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_analog_front, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_analog_rear, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_analog_center_lfe, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_analog_unknown, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_spdif_front, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_spdif_rear, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_spdif_center_lfe, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_spdif_unknown, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
        if ((kctl = snd_ctl_new1(&snd_ca0106_volume_control_feedback, emu)) == NULL)
                return -ENOMEM;
        if ((err = snd_ctl_add(card, kctl)))
                return err;
	if ((kctl = snd_ctl_new1(&snd_ca0106_spdif_mask_control, emu)) == NULL)
		return -ENOMEM;
	if ((err = snd_ctl_add(card, kctl)))
		return err;
	if ((kctl = snd_ctl_new1(&snd_ca0106_shared_spdif, emu)) == NULL)
		return -ENOMEM;
	if ((err = snd_ctl_add(card, kctl)))
		return err;
	if ((kctl = snd_ctl_new1(&snd_ca0106_capture_source, emu)) == NULL)
		return -ENOMEM;
	if ((err = snd_ctl_add(card, kctl)))
		return err;
	if ((kctl = ctl_find(card, SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT))) != NULL) {
		/* already defined by ac97, remove it */
		/* FIXME: or do we need both controls? */
		remove_ctl(card, SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT));
	}
	if ((kctl = snd_ctl_new1(&snd_ca0106_spdif_control, emu)) == NULL)
		return -ENOMEM;
	if ((err = snd_ctl_add(card, kctl)))
		return err;
        return 0;
}