aboutsummaryrefslogtreecommitdiffstats
path: root/sound/i2c/l3/uda1341.c
blob: 9840eb43648d07e5a05a2a80c8bd3c1406d6aba3 (plain) (blame)
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
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
/*
 * Philips UDA1341 mixer device driver
 * Copyright (c) 2002 Tomas Kasparek <tomas.kasparek@seznam.cz>
 *
 * Portions are Copyright (C) 2000 Lernout & Hauspie Speech Products, N.V.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License.
 *
 * History:
 *
 * 2002-03-13   Tomas Kasparek  initial release - based on uda1341.c from OSS
 * 2002-03-28   Tomas Kasparek  basic mixer is working (volume, bass, treble)
 * 2002-03-30   Tomas Kasparek  proc filesystem support, complete mixer and DSP
 *                              features support
 * 2002-04-12	Tomas Kasparek	proc interface update, code cleanup
 * 2002-05-12   Tomas Kasparek  another code cleanup
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/ioctl.h>

#include <asm/uaccess.h>

#include <sound/core.h>
#include <sound/control.h>
#include <sound/initval.h>
#include <sound/info.h>

#include <linux/l3/l3.h>

#include <sound/uda1341.h>

/* {{{ HW regs definition */

#define STAT0                   0x00
#define STAT1			0x80
#define STAT_MASK               0x80

#define DATA0_0			0x00
#define DATA0_1			0x40
#define DATA0_2			0x80
#define DATA_MASK               0xc0

#define IS_DATA0(x)     ((x) >= data0_0 && (x) <= data0_2)
#define IS_DATA1(x)     ((x) == data1)
#define IS_STATUS(x)    ((x) == stat0 || (x) == stat1)
#define IS_EXTEND(x)   ((x) >= ext0 && (x) <= ext6)

/* }}} */


static const char *peak_names[] = {
	"before",
	"after",
};

static const char *filter_names[] = {
	"flat",
	"min",
	"min",
	"max",
};

static const char *mixer_names[] = {
	"double differential",
	"input channel 1 (line in)",
	"input channel 2 (microphone)",
	"digital mixer",
};

static const char *deemp_names[] = {
	"none",
	"32 kHz",
	"44.1 kHz",
	"48 kHz",        
};

enum uda1341_regs_names {
	stat0,
	stat1,
	data0_0,
	data0_1,
	data0_2,
	data1,
	ext0,
	ext1,
	ext2,
	empty,
	ext4,
	ext5,
	ext6,
	uda1341_reg_last,
};

static const char *uda1341_reg_names[] = {
	"stat 0 ",
	"stat 1 ",
	"data 00",
	"data 01",
	"data 02",
	"data 1 ",
	"ext 0",
	"ext 1",
	"ext 2",
	"empty",
	"ext 4",
	"ext 5",
	"ext 6",
};

static const int uda1341_enum_items[] = {
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	2, //peak - before/after
	4, //deemp - none/32/44.1/48
	0,
	4, //filter - flat/min/min/max
	0, 0, 0,
	4, //mixer - differ/line/mic/mixer
	0, 0, 0, 0, 0,
};

static const char ** uda1341_enum_names[] = {
	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
	peak_names, //peak - before/after
	deemp_names, //deemp - none/32/44.1/48
	NULL,
	filter_names, //filter - flat/min/min/max
	NULL, NULL, NULL,
	mixer_names, //mixer - differ/line/mic/mixer
	NULL, NULL, NULL, NULL, NULL,
};

typedef int uda1341_cfg[CMD_LAST];

struct uda1341 {
	int (*write) (struct l3_client *uda1341, unsigned short reg, unsigned short val);
	int (*read) (struct l3_client *uda1341, unsigned short reg);        
	unsigned char regs[uda1341_reg_last];
	int active;
	spinlock_t reg_lock;
	struct snd_card *card;
	uda1341_cfg cfg;
#ifdef CONFIG_PM
	unsigned char suspend_regs[uda1341_reg_last];
	uda1341_cfg suspend_cfg;
#endif
};

/* transfer 8bit integer into string with binary representation */
static void int2str_bin8(uint8_t val, char *buf)
{
	const int size = sizeof(val) * 8;
	int i;

	for (i= 0; i < size; i++){
		*(buf++) = (val >> (size - 1)) ? '1' : '0';
		val <<= 1;
	}
	*buf = '\0'; //end the string with zero
}

/* {{{ HW manipulation routines */

static int snd_uda1341_codec_write(struct l3_client *clnt, unsigned short reg, unsigned short val)
{
	struct uda1341 *uda = clnt->driver_data;
	unsigned char buf[2] = { 0xc0, 0xe0 }; // for EXT addressing
	int err = 0;

	uda->regs[reg] = val;

	if (uda->active) {
		if (IS_DATA0(reg)) {
			err = l3_write(clnt, UDA1341_DATA0, (const unsigned char *)&val, 1);
		} else if (IS_DATA1(reg)) {
			err = l3_write(clnt, UDA1341_DATA1, (const unsigned char *)&val, 1);
		} else if (IS_STATUS(reg)) {
			err = l3_write(clnt, UDA1341_STATUS, (const unsigned char *)&val, 1);
		} else if (IS_EXTEND(reg)) {
			buf[0] |= (reg - ext0) & 0x7;   //EXT address
			buf[1] |= val;                  //EXT data
			err = l3_write(clnt, UDA1341_DATA0, (const unsigned char *)buf, 2);
		}
	} else
		printk(KERN_ERR "UDA1341 codec not active!\n");
	return err;
}

static int snd_uda1341_codec_read(struct l3_client *clnt, unsigned short reg)
{
	unsigned char val;
	int err;

	err = l3_read(clnt, reg, &val, 1);
	if (err == 1)
		// use just 6bits - the rest is address of the reg
		return val & 63;
	return err < 0 ? err : -EIO;
}

static inline int snd_uda1341_valid_reg(struct l3_client *clnt, unsigned short reg)
{
	return reg < uda1341_reg_last;
}

static int snd_uda1341_update_bits(struct l3_client *clnt, unsigned short reg,
				   unsigned short mask, unsigned short shift,
				   unsigned short value, int flush)
{
	int change;
	unsigned short old, new;
	struct uda1341 *uda = clnt->driver_data;

#if 0
	printk(KERN_DEBUG "update_bits: reg: %s mask: %d shift: %d val: %d\n",
	       uda1341_reg_names[reg], mask, shift, value);
#endif
        
	if (!snd_uda1341_valid_reg(clnt, reg))
		return -EINVAL;
	spin_lock(&uda->reg_lock);
	old = uda->regs[reg];
	new = (old & ~(mask << shift)) | (value << shift);
	change = old != new;
	if (change) {
		if (flush) uda->write(clnt, reg, new);
		uda->regs[reg] = new;
	}
	spin_unlock(&uda->reg_lock);
	return change;
}

static int snd_uda1341_cfg_write(struct l3_client *clnt, unsigned short what,
				 unsigned short value, int flush)
{
	struct uda1341 *uda = clnt->driver_data;
	int ret = 0;
#ifdef CONFIG_PM
	int reg;
#endif

#if 0
	printk(KERN_DEBUG "cfg_write what: %d value: %d\n", what, value);
#endif

	uda->cfg[what] = value;
        
	switch(what) {
	case CMD_RESET:
		ret = snd_uda1341_update_bits(clnt, data0_2, 1, 2, 1, flush);	// MUTE
		ret = snd_uda1341_update_bits(clnt, stat0, 1, 6, 1, flush);	// RESET
		ret = snd_uda1341_update_bits(clnt, stat0, 1, 6, 0, flush);	// RESTORE
		uda->cfg[CMD_RESET]=0;
		break;
	case CMD_FS:
		ret = snd_uda1341_update_bits(clnt, stat0, 3, 4, value, flush);
		break;
	case CMD_FORMAT:
		ret = snd_uda1341_update_bits(clnt, stat0, 7, 1, value, flush);
		break;
	case CMD_OGAIN:
		ret = snd_uda1341_update_bits(clnt, stat1, 1, 6, value, flush);
		break;
	case CMD_IGAIN:
		ret = snd_uda1341_update_bits(clnt, stat1, 1, 5, value, flush);
		break;
	case CMD_DAC:
		ret = snd_uda1341_update_bits(clnt, stat1, 1, 0, value, flush);
		break;
	case CMD_ADC:
		ret = snd_uda1341_update_bits(clnt, stat1, 1, 1, value, flush);
		break;
	case CMD_VOLUME:
		ret = snd_uda1341_update_bits(clnt, data0_0, 63, 0, value, flush);
		break;
	case CMD_BASS:
		ret = snd_uda1341_update_bits(clnt, data0_1, 15, 2, value, flush);
		break;
	case CMD_TREBBLE:
		ret = snd_uda1341_update_bits(clnt, data0_1, 3, 0, value, flush);
		break;
	case CMD_PEAK:
		ret = snd_uda1341_update_bits(clnt, data0_2, 1, 5, value, flush);
		break;
	case CMD_DEEMP:
		ret = snd_uda1341_update_bits(clnt, data0_2, 3, 3, value, flush);
		break;
	case CMD_MUTE:
		ret = snd_uda1341_update_bits(clnt, data0_2, 1, 2, value, flush);
		break;
	case CMD_FILTER:
		ret = snd_uda1341_update_bits(clnt, data0_2, 3, 0, value, flush);
		break;
	case CMD_CH1:
		ret = snd_uda1341_update_bits(clnt, ext0, 31, 0, value, flush);
		break;
	case CMD_CH2:
		ret = snd_uda1341_update_bits(clnt, ext1, 31, 0, value, flush);
		break;
	case CMD_MIC:
		ret = snd_uda1341_update_bits(clnt, ext2, 7, 2, value, flush);
		break;
	case CMD_MIXER:
		ret = snd_uda1341_update_bits(clnt, ext2, 3, 0, value, flush);
		break;
	case CMD_AGC:
		ret = snd_uda1341_update_bits(clnt, ext4, 1, 4, value, flush);
		break;
	case CMD_IG:
		ret = snd_uda1341_update_bits(clnt, ext4, 3, 0, value & 0x3, flush);
		ret = snd_uda1341_update_bits(clnt, ext5, 31, 0, value >> 2, flush);
		break;
	case CMD_AGC_TIME:
		ret = snd_uda1341_update_bits(clnt, ext6, 7, 2, value, flush);
		break;
	case CMD_AGC_LEVEL:
		ret = snd_uda1341_update_bits(clnt, ext6, 3, 0, value, flush);
		break;
#ifdef CONFIG_PM		
	case CMD_SUSPEND:
		for (reg = stat0; reg < uda1341_reg_last; reg++)
			uda->suspend_regs[reg] = uda->regs[reg];
		for (reg = 0; reg < CMD_LAST; reg++)
			uda->suspend_cfg[reg] = uda->cfg[reg];
		break;
	case CMD_RESUME:
		for (reg = stat0; reg < uda1341_reg_last; reg++)
			snd_uda1341_codec_write(clnt, reg, uda->suspend_regs[reg]);
		for (reg = 0; reg < CMD_LAST; reg++)
			uda->cfg[reg] = uda->suspend_cfg[reg];
		break;
#endif
	default:
		ret = -EINVAL;
		break;
	}
                
	if (!uda->active)
		printk(KERN_ERR "UDA1341 codec not active!\n");                
	return ret;
}

/* }}} */

/* {{{ Proc interface */
#ifdef CONFIG_PROC_FS

static const char *format_names[] = {
	"I2S-bus",
	"LSB 16bits",
	"LSB 18bits",
	"LSB 20bits",
	"MSB",
	"in LSB 16bits/out MSB",
	"in LSB 18bits/out MSB",
	"in LSB 20bits/out MSB",        
};

static const char *fs_names[] = {
	"512*fs",
	"384*fs",
	"256*fs",
	"Unused - bad value!",
};

static const char* bass_values[][16] = {
	{"0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB", "0 dB",
	 "0 dB", "0 dB", "0 dB", "0 dB", "undefined", }, //flat
	{"0 dB", "2 dB", "4 dB", "6 dB", "8 dB", "10 dB", "12 dB", "14 dB", "16 dB", "18 dB", "18 dB",
	 "18 dB", "18 dB", "18 dB", "18 dB", "undefined",}, // min
	{"0 dB", "2 dB", "4 dB", "6 dB", "8 dB", "10 dB", "12 dB", "14 dB", "16 dB", "18 dB", "18 dB",
	 "18 dB", "18 dB", "18 dB", "18 dB", "undefined",}, // min
	{"0 dB", "2 dB", "4 dB", "6 dB", "8 dB", "10 dB", "12 dB", "14 dB", "16 dB", "18 dB", "20 dB",
	 "22 dB", "24 dB", "24 dB", "24 dB", "undefined",}, // max
};

static const char *mic_sens_value[] = {
	"-3 dB", "0 dB", "3 dB", "9 dB", "15 dB", "21 dB", "27 dB", "not used",
};

static const unsigned short AGC_atime[] = {
	11, 16, 11, 16, 21, 11, 16, 21,
};

static const unsigned short AGC_dtime[] = {
	100, 100, 200, 200, 200, 400, 400, 400,
};

static const char *AGC_level[] = {
	"-9.0", "-11.5", "-15.0", "-17.5",
};

static const char *ig_small_value[] = {
	"-3.0", "-2.5", "-2.0", "-1.5", "-1.0", "-0.5",
};

/*
 * this was computed as peak_value[i] = pow((63-i)*1.42,1.013)
 *
 * UDA1341 datasheet on page 21: Peak value (dB) = (Peak level - 63.5)*5*log2
 * There is an table with these values [level]=value: [3]=-90.31, [7]=-84.29
 * [61]=-2.78, [62] = -1.48, [63] = 0.0
 * I tried to compute it, but using but even using logarithm with base either 10 or 2
 * i was'n able to get values in the table from the formula. So I constructed another
 * formula (see above) to interpolate the values as good as possible. If there is some
 * mistake, please contact me on tomas.kasparek@seznam.cz. Thanks.
 * UDA1341TS datasheet is available at:
 *   http://www-us9.semiconductors.com/acrobat/datasheets/UDA1341TS_3.pdf 
 */
static const char *peak_value[] = {
	"-INF dB", "N.A.", "N.A", "90.31 dB", "N.A.", "N.A.", "N.A.", "-84.29 dB",
	"-82.65 dB", "-81.13 dB", "-79.61 dB", "-78.09 dB", "-76.57 dB", "-75.05 dB", "-73.53 dB",
	"-72.01 dB", "-70.49 dB", "-68.97 dB", "-67.45 dB", "-65.93 dB", "-64.41 dB", "-62.90 dB",
	"-61.38 dB", "-59.86 dB", "-58.35 dB", "-56.83 dB", "-55.32 dB", "-53.80 dB", "-52.29 dB",
	"-50.78 dB", "-49.26 dB", "-47.75 dB", "-46.24 dB", "-44.73 dB", "-43.22 dB", "-41.71 dB",
	"-40.20 dB", "-38.69 dB", "-37.19 dB", "-35.68 dB", "-34.17 dB", "-32.67 dB", "-31.17 dB",
	"-29.66 dB", "-28.16 dB", "-26.66 dB", "-25.16 dB", "-23.66 dB", "-22.16 dB", "-20.67 dB",
	"-19.17 dB", "-17.68 dB", "-16.19 dB", "-14.70 dB", "-13.21 dB", "-11.72 dB", "-10.24 dB",
	"-8.76 dB", "-7.28 dB", "-5.81 dB", "-4.34 dB", "-2.88 dB", "-1.43 dB", "0.00 dB",
};

static void snd_uda1341_proc_read(struct snd_info_entry *entry, 
				  struct snd_info_buffer *buffer)
{
	struct l3_client *clnt = entry->private_data;
	struct uda1341 *uda = clnt->driver_data;
	int peak;

	peak = snd_uda1341_codec_read(clnt, UDA1341_DATA1);
	if (peak < 0)
		peak = 0;
	
	snd_iprintf(buffer, "%s\n\n", uda->card->longname);

	// for information about computed values see UDA1341TS datasheet pages 15 - 21
	snd_iprintf(buffer, "DAC power           : %s\n", uda->cfg[CMD_DAC] ? "on" : "off");
	snd_iprintf(buffer, "ADC power           : %s\n", uda->cfg[CMD_ADC] ? "on" : "off");
 	snd_iprintf(buffer, "Clock frequency     : %s\n", fs_names[uda->cfg[CMD_FS]]);
	snd_iprintf(buffer, "Data format         : %s\n\n", format_names[uda->cfg[CMD_FORMAT]]);

	snd_iprintf(buffer, "Filter mode         : %s\n", filter_names[uda->cfg[CMD_FILTER]]);
	snd_iprintf(buffer, "Mixer mode          : %s\n", mixer_names[uda->cfg[CMD_MIXER]]);
	snd_iprintf(buffer, "De-emphasis         : %s\n", deemp_names[uda->cfg[CMD_DEEMP]]);	
	snd_iprintf(buffer, "Peak detection pos. : %s\n", uda->cfg[CMD_PEAK] ? "after" : "before");
	snd_iprintf(buffer, "Peak value          : %s\n\n", peak_value[peak]);		
	
	snd_iprintf(buffer, "Automatic Gain Ctrl : %s\n", uda->cfg[CMD_AGC] ? "on" : "off");
	snd_iprintf(buffer, "AGC attack time     : %d ms\n", AGC_atime[uda->cfg[CMD_AGC_TIME]]);
	snd_iprintf(buffer, "AGC decay time      : %d ms\n", AGC_dtime[uda->cfg[CMD_AGC_TIME]]);
	snd_iprintf(buffer, "AGC output level    : %s dB\n\n", AGC_level[uda->cfg[CMD_AGC_LEVEL]]);

	snd_iprintf(buffer, "Mute                : %s\n", uda->cfg[CMD_MUTE] ? "on" : "off");

	if (uda->cfg[CMD_VOLUME] == 0)
		snd_iprintf(buffer, "Volume              : 0 dB\n");
	else if (uda->cfg[CMD_VOLUME] < 62)
		snd_iprintf(buffer, "Volume              : %d dB\n", -1*uda->cfg[CMD_VOLUME] +1);
	else
		snd_iprintf(buffer, "Volume              : -INF dB\n");
	snd_iprintf(buffer, "Bass                : %s\n", bass_values[uda->cfg[CMD_FILTER]][uda->cfg[CMD_BASS]]);
	snd_iprintf(buffer, "Trebble             : %d dB\n", uda->cfg[CMD_FILTER] ? 2*uda->cfg[CMD_TREBBLE] : 0);
	snd_iprintf(buffer, "Input Gain (6dB)    : %s\n", uda->cfg[CMD_IGAIN] ? "on" : "off");
	snd_iprintf(buffer, "Output Gain (6dB)   : %s\n", uda->cfg[CMD_OGAIN] ? "on" : "off");
	snd_iprintf(buffer, "Mic sensitivity     : %s\n", mic_sens_value[uda->cfg[CMD_MIC]]);

	
	if(uda->cfg[CMD_CH1] < 31)
		snd_iprintf(buffer, "Mixer gain channel 1: -%d.%c dB\n",
			    ((uda->cfg[CMD_CH1] >> 1) * 3) + (uda->cfg[CMD_CH1] & 1),
			    uda->cfg[CMD_CH1] & 1 ? '5' : '0');
	else
		snd_iprintf(buffer, "Mixer gain channel 1: -INF dB\n");
	if(uda->cfg[CMD_CH2] < 31)
		snd_iprintf(buffer, "Mixer gain channel 2: -%d.%c dB\n",
			    ((uda->cfg[CMD_CH2] >> 1) * 3) + (uda->cfg[CMD_CH2] & 1),
			    uda->cfg[CMD_CH2] & 1 ? '5' : '0');
	else
		snd_iprintf(buffer, "Mixer gain channel 2: -INF dB\n");

	if(uda->cfg[CMD_IG] > 5)
		snd_iprintf(buffer, "Input Amp. Gain ch 2: %d.%c dB\n",
			    (uda->cfg[CMD_IG] >> 1) -3, uda->cfg[CMD_IG] & 1 ? '5' : '0');
	else
		snd_iprintf(buffer, "Input Amp. Gain ch 2: %s dB\n",  ig_small_value[uda->cfg[CMD_IG]]);
}

static void snd_uda1341_proc_regs_read(struct snd_info_entry *entry, 
				       struct snd_info_buffer *buffer)
{
	struct l3_client *clnt = entry->private_data;
	struct uda1341 *uda = clnt->driver_data;		
	int reg;
	char buf[12];

	for (reg = 0; reg < uda1341_reg_last; reg ++) {
		if (reg == empty)
			continue;
		int2str_bin8(uda->regs[reg], buf);
		snd_iprintf(buffer, "%s = %s\n", uda1341_reg_names[reg], buf);
	}

	int2str_bin8(snd_uda1341_codec_read(clnt, UDA1341_DATA1), buf);
	snd_iprintf(buffer, "DATA1 = %s\n", buf);
}
#endif /* CONFIG_PROC_FS */

static void __devinit snd_uda1341_proc_init(struct snd_card *card, struct l3_client *clnt)
{
	struct snd_info_entry *entry;

	if (! snd_card_proc_new(card, "uda1341", &entry))
		snd_info_set_text_ops(entry, clnt, snd_uda1341_proc_read);
	if (! snd_card_proc_new(card, "uda1341-regs", &entry))
		snd_info_set_text_ops(entry, clnt, snd_uda1341_proc_regs_read);
}

/* }}} */

/* {{{ Mixer controls setting */

/* {{{ UDA1341 single functions */

#define UDA1341_SINGLE(xname, where, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_uda1341_info_single, \
  .get = snd_uda1341_get_single, .put = snd_uda1341_put_single, \
  .private_value = where | (reg << 5) | (shift << 9) | (mask << 12) | (invert << 18) \
}

static int snd_uda1341_info_single(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_info *uinfo)
{
	int mask = (kcontrol->private_value >> 12) & 63;

	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_uda1341_get_single(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
	struct uda1341 *uda = clnt->driver_data;
	int where = kcontrol->private_value & 31;        
	int mask = (kcontrol->private_value >> 12) & 63;
	int invert = (kcontrol->private_value >> 18) & 1;
        
	ucontrol->value.integer.value[0] = uda->cfg[where];
	if (invert)
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];

	return 0;
}

static int snd_uda1341_put_single(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
	struct uda1341 *uda = clnt->driver_data;
	int where = kcontrol->private_value & 31;        
	int reg = (kcontrol->private_value >> 5) & 15;
	int shift = (kcontrol->private_value >> 9) & 7;
	int mask = (kcontrol->private_value >> 12) & 63;
	int invert = (kcontrol->private_value >> 18) & 1;
	unsigned short val;

	val = (ucontrol->value.integer.value[0] & mask);
	if (invert)
		val = mask - val;

	uda->cfg[where] = val;
	return snd_uda1341_update_bits(clnt, reg, mask, shift, val, FLUSH);
}

/* }}} */

/* {{{ UDA1341 enum functions */

#define UDA1341_ENUM(xname, where, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_uda1341_info_enum, \
  .get = snd_uda1341_get_enum, .put = snd_uda1341_put_enum, \
  .private_value = where | (reg << 5) | (shift << 9) | (mask << 12) | (invert << 18) \
}

static int snd_uda1341_info_enum(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_info *uinfo)
{
	int where = kcontrol->private_value & 31;
	const char **texts;
	
	// this register we don't handle this way
	if (!uda1341_enum_items[where])
		return -EINVAL;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = uda1341_enum_items[where];

	if (uinfo->value.enumerated.item >= uda1341_enum_items[where])
		uinfo->value.enumerated.item = uda1341_enum_items[where] - 1;

	texts = uda1341_enum_names[where];
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_uda1341_get_enum(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
	struct uda1341 *uda = clnt->driver_data;
	int where = kcontrol->private_value & 31;        
        
	ucontrol->value.enumerated.item[0] = uda->cfg[where];	
	return 0;
}

static int snd_uda1341_put_enum(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
	struct uda1341 *uda = clnt->driver_data;
	int where = kcontrol->private_value & 31;        
	int reg = (kcontrol->private_value >> 5) & 15;
	int shift = (kcontrol->private_value >> 9) & 7;
	int mask = (kcontrol->private_value >> 12) & 63;

	uda->cfg[where] = (ucontrol->value.enumerated.item[0] & mask);
	
	return snd_uda1341_update_bits(clnt, reg, mask, shift, uda->cfg[where], FLUSH);
}

/* }}} */

/* {{{ UDA1341 2regs functions */

#define UDA1341_2REGS(xname, where, reg_1, reg_2, shift_1, shift_2, mask_1, mask_2, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .info = snd_uda1341_info_2regs, \
  .get = snd_uda1341_get_2regs, .put = snd_uda1341_put_2regs, \
  .private_value = where | (reg_1 << 5) | (reg_2 << 9) | (shift_1 << 13) | (shift_2 << 16) | \
                         (mask_1 << 19) | (mask_2 << 25) | (invert << 31) \
}


static int snd_uda1341_info_2regs(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	int mask_1 = (kcontrol->private_value >> 19) & 63;
	int mask_2 = (kcontrol->private_value >> 25) & 63;
	int mask;
        
	mask = (mask_2 + 1) * (mask_1 + 1) - 1;
	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_uda1341_get_2regs(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
	struct uda1341 *uda = clnt->driver_data;
	int where = kcontrol->private_value & 31;
	int mask_1 = (kcontrol->private_value >> 19) & 63;
	int mask_2 = (kcontrol->private_value >> 25) & 63;        
	int invert = (kcontrol->private_value >> 31) & 1;
	int mask;

	mask = (mask_2 + 1) * (mask_1 + 1) - 1;

	ucontrol->value.integer.value[0] = uda->cfg[where];
	if (invert)
		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
	return 0;
}

static int snd_uda1341_put_2regs(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct l3_client *clnt = snd_kcontrol_chip(kcontrol);
	struct uda1341 *uda = clnt->driver_data;        
	int where = kcontrol->private_value & 31;        
	int reg_1 = (kcontrol->private_value >> 5) & 15;
	int reg_2 = (kcontrol->private_value >> 9) & 15;        
	int shift_1 = (kcontrol->private_value >> 13) & 7;
	int shift_2 = (kcontrol->private_value >> 16) & 7;
	int mask_1 = (kcontrol->private_value >> 19) & 63;
	int mask_2 = (kcontrol->private_value >> 25) & 63;        
	int invert = (kcontrol->private_value >> 31) & 1;
	int mask;
	unsigned short val1, val2, val;

	val = ucontrol->value.integer.value[0];
         
	mask = (mask_2 + 1) * (mask_1 + 1) - 1;

	val1 = val & mask_1;
	val2 = (val / (mask_1 + 1)) & mask_2;        

	if (invert) {
		val1 = mask_1 - val1;
		val2 = mask_2 - val2;
	}

	uda->cfg[where] = invert ? mask - val : val;
        
	//FIXME - return value
	snd_uda1341_update_bits(clnt, reg_1, mask_1, shift_1, val1, FLUSH);
	return snd_uda1341_update_bits(clnt, reg_2, mask_2, shift_2, val2, FLUSH);
}

/* }}} */
  
static struct snd_kcontrol_new snd_uda1341_controls[] = {
	UDA1341_SINGLE("Master Playback Switch", CMD_MUTE, data0_2, 2, 1, 1),
	UDA1341_SINGLE("Master Playback Volume", CMD_VOLUME, data0_0, 0, 63, 1),

	UDA1341_SINGLE("Bass Playback Volume", CMD_BASS, data0_1, 2, 15, 0),
	UDA1341_SINGLE("Treble Playback Volume", CMD_TREBBLE, data0_1, 0, 3, 0),

	UDA1341_SINGLE("Input Gain Switch", CMD_IGAIN, stat1, 5, 1, 0),
	UDA1341_SINGLE("Output Gain Switch", CMD_OGAIN, stat1, 6, 1, 0),

	UDA1341_SINGLE("Mixer Gain Channel 1 Volume", CMD_CH1, ext0, 0, 31, 1),
	UDA1341_SINGLE("Mixer Gain Channel 2 Volume", CMD_CH2, ext1, 0, 31, 1),

	UDA1341_SINGLE("Mic Sensitivity Volume", CMD_MIC, ext2, 2, 7, 0),

	UDA1341_SINGLE("AGC Output Level", CMD_AGC_LEVEL, ext6, 0, 3, 0),
	UDA1341_SINGLE("AGC Time Constant", CMD_AGC_TIME, ext6, 2, 7, 0),
	UDA1341_SINGLE("AGC Time Constant Switch", CMD_AGC, ext4, 4, 1, 0),

	UDA1341_SINGLE("DAC Power", CMD_DAC, stat1, 0, 1, 0),
	UDA1341_SINGLE("ADC Power", CMD_ADC, stat1, 1, 1, 0),

	UDA1341_ENUM("Peak detection", CMD_PEAK, data0_2, 5, 1, 0),
	UDA1341_ENUM("De-emphasis", CMD_DEEMP, data0_2, 3, 3, 0),
	UDA1341_ENUM("Mixer mode", CMD_MIXER, ext2, 0, 3, 0),
	UDA1341_ENUM("Filter mode", CMD_FILTER, data0_2, 0, 3, 0),

	UDA1341_2REGS("Gain Input Amplifier Gain (channel 2)", CMD_IG, ext4, ext5, 0, 0, 3, 31, 0),
};

static void uda1341_free(struct l3_client *clnt)
{
	l3_detach_client(clnt); // calls kfree for driver_data (struct uda1341)
	kfree(clnt);
}

static int uda1341_dev_free(struct snd_device *device)
{
	struct l3_client *clnt = device->device_data;
	uda1341_free(clnt);
	return 0;
}

int __init snd_chip_uda1341_mixer_new(struct snd_card *card, struct l3_client **clntp)
{
	static struct snd_device_ops ops = {
		.dev_free =     uda1341_dev_free,
	};
	struct l3_client *clnt;
	int idx, err;

	if (snd_BUG_ON(!card))
		return -EINVAL;

	clnt = kzalloc(sizeof(*clnt), GFP_KERNEL);
	if (clnt == NULL)
		return -ENOMEM;
         
	if ((err = l3_attach_client(clnt, "l3-bit-sa1100-gpio", UDA1341_ALSA_NAME))) {
		kfree(clnt);
		return err;
	}

	for (idx = 0; idx < ARRAY_SIZE(snd_uda1341_controls); idx++) {
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_uda1341_controls[idx], clnt))) < 0) {
			uda1341_free(clnt);
			return err;
		}
	}

	if ((err = snd_device_new(card, SNDRV_DEV_CODEC, clnt, &ops)) < 0) {
		uda1341_free(clnt);
		return err;
	}

	*clntp = clnt;
	strcpy(card->mixername, "UDA1341TS Mixer");
	((struct uda1341 *)clnt->driver_data)->card = card;
        
	snd_uda1341_proc_init(card, clnt);
        
	return 0;
}

/* }}} */

/* {{{ L3 operations */

static int uda1341_attach(struct l3_client *clnt)
{
	struct uda1341 *uda;

	uda = kzalloc(sizeof(*uda), 0, GFP_KERNEL);
	if (!uda)
		return -ENOMEM;

	/* init fixed parts of my copy of registers */
	uda->regs[stat0]   = STAT0;
	uda->regs[stat1]   = STAT1;

	uda->regs[data0_0] = DATA0_0;
	uda->regs[data0_1] = DATA0_1;
	uda->regs[data0_2] = DATA0_2;

	uda->write = snd_uda1341_codec_write;
	uda->read = snd_uda1341_codec_read;
  
	spin_lock_init(&uda->reg_lock);
        
	clnt->driver_data = uda;
	return 0;
}

static void uda1341_detach(struct l3_client *clnt)
{
	kfree(clnt->driver_data);
}

static int
uda1341_command(struct l3_client *clnt, int cmd, void *arg)
{
	if (cmd != CMD_READ_REG)
		return snd_uda1341_cfg_write(clnt, cmd, (int) arg, FLUSH);

	return snd_uda1341_codec_read(clnt, (int) arg);
}

static int uda1341_open(struct l3_client *clnt)
{
	struct uda1341 *uda = clnt->driver_data;

	uda->active = 1;

	/* init default configuration */
	snd_uda1341_cfg_write(clnt, CMD_RESET, 0, REGS_ONLY);
	snd_uda1341_cfg_write(clnt, CMD_FS, F256, FLUSH);       // unknown state after reset
	snd_uda1341_cfg_write(clnt, CMD_FORMAT, LSB16, FLUSH);  // unknown state after reset
	snd_uda1341_cfg_write(clnt, CMD_OGAIN, ON, FLUSH);      // default off after reset
	snd_uda1341_cfg_write(clnt, CMD_IGAIN, ON, FLUSH);      // default off after reset
	snd_uda1341_cfg_write(clnt, CMD_DAC, ON, FLUSH);	// ??? default value after reset
	snd_uda1341_cfg_write(clnt, CMD_ADC, ON, FLUSH);	// ??? default value after reset
	snd_uda1341_cfg_write(clnt, CMD_VOLUME, 20, FLUSH);     // default 0dB after reset
	snd_uda1341_cfg_write(clnt, CMD_BASS, 0, REGS_ONLY);    // default value after reset
	snd_uda1341_cfg_write(clnt, CMD_TREBBLE, 0, REGS_ONLY); // default value after reset
	snd_uda1341_cfg_write(clnt, CMD_PEAK, AFTER, REGS_ONLY);// default value after reset
	snd_uda1341_cfg_write(clnt, CMD_DEEMP, NONE, REGS_ONLY);// default value after reset
	//at this moment should be QMUTED by h3600_audio_init
	snd_uda1341_cfg_write(clnt, CMD_MUTE, OFF, REGS_ONLY);  // default value after reset
	snd_uda1341_cfg_write(clnt, CMD_FILTER, MAX, FLUSH);    // defaul flat after reset
	snd_uda1341_cfg_write(clnt, CMD_CH1, 31, FLUSH);        // default value after reset
	snd_uda1341_cfg_write(clnt, CMD_CH2, 4, FLUSH);         // default value after reset
	snd_uda1341_cfg_write(clnt, CMD_MIC, 4, FLUSH);         // default 0dB after reset
	snd_uda1341_cfg_write(clnt, CMD_MIXER, MIXER, FLUSH);   // default doub.dif.mode          
	snd_uda1341_cfg_write(clnt, CMD_AGC, OFF, FLUSH);       // default value after reset
	snd_uda1341_cfg_write(clnt, CMD_IG, 0, FLUSH);          // unknown state after reset
	snd_uda1341_cfg_write(clnt, CMD_AGC_TIME, 0, FLUSH);    // default value after reset
	snd_uda1341_cfg_write(clnt, CMD_AGC_LEVEL, 0, FLUSH);   // default value after reset

	return 0;
}

static void uda1341_close(struct l3_client *clnt)
{
	struct uda1341 *uda = clnt->driver_data;

	uda->active = 0;
}

/* }}} */

/* {{{ Module and L3 initialization */

static struct l3_ops uda1341_ops = {
	.open =		uda1341_open,
	.command =	uda1341_command,
	.close =	uda1341_close,
};

static struct l3_driver uda1341_driver = {
	.name =		UDA1341_ALSA_NAME,
	.attach_client = uda1341_attach,
	.detach_client = uda1341_detach,
	.ops =		&uda1341_ops,
	.owner =	THIS_MODULE,
};

static int __init uda1341_init(void)
{
	return l3_add_driver(&uda1341_driver);
}

static void __exit uda1341_exit(void)
{
	l3_del_driver(&uda1341_driver);
}

module_init(uda1341_init);
module_exit(uda1341_exit);

MODULE_AUTHOR("Tomas Kasparek <tomas.kasparek@seznam.cz>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Philips UDA1341 CODEC driver for ALSA");
MODULE_SUPPORTED_DEVICE("{{UDA1341,UDA1341TS}}");

EXPORT_SYMBOL(snd_chip_uda1341_mixer_new);

/* }}} */

/*
 * Local variables:
 * indent-tabs-mode: t
 * End:
 */