aboutsummaryrefslogtreecommitdiff
path: root/sound/pci/ice1712/delta.c
blob: 20c6b079d0dfc33cfc4620006bbbe944e39e91b6 (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
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
/*
 *   ALSA driver for ICEnsemble ICE1712 (Envy24)
 *
 *   Lowlevel functions for M-Audio Delta 1010, 1010E, 44, 66, 66E, Dio2496,
 *			    Audiophile, Digigram VX442
 *
 *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
 *
 *   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 <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/mutex.h>

#include <sound/core.h>
#include <sound/cs8427.h>
#include <sound/asoundef.h>

#include "ice1712.h"
#include "delta.h"

#define SND_CS8403
#include <sound/cs8403.h>


/*
 * CS8427 via SPI mode (for Audiophile), emulated I2C
 */

/* send 8 bits */
static void ap_cs8427_write_byte(struct snd_ice1712 *ice, unsigned char data, unsigned char tmp)
{
	int idx;

	for (idx = 7; idx >= 0; idx--) {
		tmp &= ~(ICE1712_DELTA_AP_DOUT|ICE1712_DELTA_AP_CCLK);
		if (data & (1 << idx))
			tmp |= ICE1712_DELTA_AP_DOUT;
		snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
		udelay(5);
		tmp |= ICE1712_DELTA_AP_CCLK;
		snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
		udelay(5);
	}
}

/* read 8 bits */
static unsigned char ap_cs8427_read_byte(struct snd_ice1712 *ice, unsigned char tmp)
{
	unsigned char data = 0;
	int idx;
	
	for (idx = 7; idx >= 0; idx--) {
		tmp &= ~ICE1712_DELTA_AP_CCLK;
		snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
		udelay(5);
		if (snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ICE1712_DELTA_AP_DIN)
			data |= 1 << idx;
		tmp |= ICE1712_DELTA_AP_CCLK;
		snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
		udelay(5);
	}
	return data;
}

/* assert chip select */
static unsigned char ap_cs8427_codec_select(struct snd_ice1712 *ice)
{
	unsigned char tmp;
	tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_DELTA1010E:
	case ICE1712_SUBDEVICE_DELTA1010LT:
		tmp &= ~ICE1712_DELTA_1010LT_CS;
		tmp |= ICE1712_DELTA_1010LT_CCLK | ICE1712_DELTA_1010LT_CS_CS8427;
		break;
	case ICE1712_SUBDEVICE_AUDIOPHILE:
	case ICE1712_SUBDEVICE_DELTA410:
		tmp |= ICE1712_DELTA_AP_CCLK | ICE1712_DELTA_AP_CS_CODEC;
		tmp &= ~ICE1712_DELTA_AP_CS_DIGITAL;
		break;
	case ICE1712_SUBDEVICE_DELTA66E:
		tmp |= ICE1712_DELTA_66E_CCLK | ICE1712_DELTA_66E_CS_CHIP_A |
		       ICE1712_DELTA_66E_CS_CHIP_B;
		tmp &= ~ICE1712_DELTA_66E_CS_CS8427;
		break;
	case ICE1712_SUBDEVICE_VX442:
		tmp |= ICE1712_VX442_CCLK | ICE1712_VX442_CODEC_CHIP_A | ICE1712_VX442_CODEC_CHIP_B;
		tmp &= ~ICE1712_VX442_CS_DIGITAL;
		break;
	}
	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
	udelay(5);
	return tmp;
}

/* deassert chip select */
static void ap_cs8427_codec_deassert(struct snd_ice1712 *ice, unsigned char tmp)
{
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_DELTA1010E:
	case ICE1712_SUBDEVICE_DELTA1010LT:
		tmp &= ~ICE1712_DELTA_1010LT_CS;
		tmp |= ICE1712_DELTA_1010LT_CS_NONE;
		break;
	case ICE1712_SUBDEVICE_AUDIOPHILE:
	case ICE1712_SUBDEVICE_DELTA410:
		tmp |= ICE1712_DELTA_AP_CS_DIGITAL;
		break;
	case ICE1712_SUBDEVICE_DELTA66E:
		tmp |= ICE1712_DELTA_66E_CS_CS8427;
		break;
	case ICE1712_SUBDEVICE_VX442:
		tmp |= ICE1712_VX442_CS_DIGITAL;
		break;
	}
	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
}

/* sequential write */
static int ap_cs8427_sendbytes(struct snd_i2c_device *device, unsigned char *bytes, int count)
{
	struct snd_ice1712 *ice = device->bus->private_data;
	int res = count;
	unsigned char tmp;

	mutex_lock(&ice->gpio_mutex);
	tmp = ap_cs8427_codec_select(ice);
	ap_cs8427_write_byte(ice, (device->addr << 1) | 0, tmp); /* address + write mode */
	while (count-- > 0)
		ap_cs8427_write_byte(ice, *bytes++, tmp);
	ap_cs8427_codec_deassert(ice, tmp);
	mutex_unlock(&ice->gpio_mutex);
	return res;
}

/* sequential read */
static int ap_cs8427_readbytes(struct snd_i2c_device *device, unsigned char *bytes, int count)
{
	struct snd_ice1712 *ice = device->bus->private_data;
	int res = count;
	unsigned char tmp;
	
	mutex_lock(&ice->gpio_mutex);
	tmp = ap_cs8427_codec_select(ice);
	ap_cs8427_write_byte(ice, (device->addr << 1) | 1, tmp); /* address + read mode */
	while (count-- > 0)
		*bytes++ = ap_cs8427_read_byte(ice, tmp);
	ap_cs8427_codec_deassert(ice, tmp);
	mutex_unlock(&ice->gpio_mutex);
	return res;
}

static int ap_cs8427_probeaddr(struct snd_i2c_bus *bus, unsigned short addr)
{
	if (addr == 0x10)
		return 1;
	return -ENOENT;
}

static struct snd_i2c_ops ap_cs8427_i2c_ops = {
	.sendbytes = ap_cs8427_sendbytes,
	.readbytes = ap_cs8427_readbytes,
	.probeaddr = ap_cs8427_probeaddr,
};

/*
 */

static void snd_ice1712_delta_cs8403_spdif_write(struct snd_ice1712 *ice, unsigned char bits)
{
	unsigned char tmp, mask1, mask2;
	int idx;
	/* send byte to transmitter */
	mask1 = ICE1712_DELTA_SPDIF_OUT_STAT_CLOCK;
	mask2 = ICE1712_DELTA_SPDIF_OUT_STAT_DATA;
	mutex_lock(&ice->gpio_mutex);
	tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
	for (idx = 7; idx >= 0; idx--) {
		tmp &= ~(mask1 | mask2);
		if (bits & (1 << idx))
			tmp |= mask2;
		snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
		udelay(100);
		tmp |= mask1;
		snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
		udelay(100);
	}
	tmp &= ~mask1;
	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
	mutex_unlock(&ice->gpio_mutex);
}


static void delta_spdif_default_get(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
{
	snd_cs8403_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_bits);
}

static int delta_spdif_default_put(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
{
	unsigned int val;
	int change;

	val = snd_cs8403_encode_spdif_bits(&ucontrol->value.iec958);
	spin_lock_irq(&ice->reg_lock);
	change = ice->spdif.cs8403_bits != val;
	ice->spdif.cs8403_bits = val;
	if (change && ice->playback_pro_substream == NULL) {
		spin_unlock_irq(&ice->reg_lock);
		snd_ice1712_delta_cs8403_spdif_write(ice, val);
	} else {
		spin_unlock_irq(&ice->reg_lock);
	}
	return change;
}

static void delta_spdif_stream_get(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
{
	snd_cs8403_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_stream_bits);
}

static int delta_spdif_stream_put(struct snd_ice1712 *ice, struct snd_ctl_elem_value *ucontrol)
{
	unsigned int val;
	int change;

	val = snd_cs8403_encode_spdif_bits(&ucontrol->value.iec958);
	spin_lock_irq(&ice->reg_lock);
	change = ice->spdif.cs8403_stream_bits != val;
	ice->spdif.cs8403_stream_bits = val;
	if (change && ice->playback_pro_substream != NULL) {
		spin_unlock_irq(&ice->reg_lock);
		snd_ice1712_delta_cs8403_spdif_write(ice, val);
	} else {
		spin_unlock_irq(&ice->reg_lock);
	}
	return change;
}


/*
 * AK4524 on Delta 44 and 66 to choose the chip mask
 */
static void delta_ak4524_lock(struct snd_akm4xxx *ak, int chip)
{
        struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
        struct snd_ice1712 *ice = ak->private_data[0];

	snd_ice1712_save_gpio_status(ice);
	priv->cs_mask =
	priv->cs_addr = chip == 0 ? ICE1712_DELTA_CODEC_CHIP_A :
				    ICE1712_DELTA_CODEC_CHIP_B;
}

/*
 * AK4524 on Delta1010LT to choose the chip address
 */
static void delta1010lt_ak4524_lock(struct snd_akm4xxx *ak, int chip)
{
        struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
        struct snd_ice1712 *ice = ak->private_data[0];

	snd_ice1712_save_gpio_status(ice);
	priv->cs_mask = ICE1712_DELTA_1010LT_CS;
	priv->cs_addr = chip << 4;
}

/*
 * AK4524 on Delta66 rev E to choose the chip address
 */
static void delta66e_ak4524_lock(struct snd_akm4xxx *ak, int chip)
{
	struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
	struct snd_ice1712 *ice = ak->private_data[0];

	snd_ice1712_save_gpio_status(ice);
	priv->cs_mask =
	priv->cs_addr = chip == 0 ? ICE1712_DELTA_66E_CS_CHIP_A :
				    ICE1712_DELTA_66E_CS_CHIP_B;
}

/*
 * AK4528 on VX442 to choose the chip mask
 */
static void vx442_ak4524_lock(struct snd_akm4xxx *ak, int chip)
{
        struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
        struct snd_ice1712 *ice = ak->private_data[0];

	snd_ice1712_save_gpio_status(ice);
	priv->cs_mask =
	priv->cs_addr = chip == 0 ? ICE1712_VX442_CODEC_CHIP_A :
				    ICE1712_VX442_CODEC_CHIP_B;
}

/*
 * change the DFS bit according rate for Delta1010
 */
static void delta_1010_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)
{
	unsigned char tmp, tmp2;

	if (rate == 0)	/* no hint - S/PDIF input is master, simply return */
		return;

	mutex_lock(&ice->gpio_mutex);
	tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
	tmp2 = tmp & ~ICE1712_DELTA_DFS;
	if (rate > 48000)
		tmp2 |= ICE1712_DELTA_DFS;
	if (tmp != tmp2)
		snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp2);
	mutex_unlock(&ice->gpio_mutex);
}

/*
 * change the rate of AK4524 on Delta 44/66, AP, 1010LT
 */
static void delta_ak4524_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
{
	unsigned char tmp, tmp2;
	struct snd_ice1712 *ice = ak->private_data[0];

	if (rate == 0)	/* no hint - S/PDIF input is master, simply return */
		return;

	/* check before reset ak4524 to avoid unnecessary clicks */
	mutex_lock(&ice->gpio_mutex);
	tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
	mutex_unlock(&ice->gpio_mutex);
	tmp2 = tmp & ~ICE1712_DELTA_DFS; 
	if (rate > 48000)
		tmp2 |= ICE1712_DELTA_DFS;
	if (tmp == tmp2)
		return;

	/* do it again */
	snd_akm4xxx_reset(ak, 1);
	mutex_lock(&ice->gpio_mutex);
	tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ~ICE1712_DELTA_DFS;
	if (rate > 48000)
		tmp |= ICE1712_DELTA_DFS;
	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
	mutex_unlock(&ice->gpio_mutex);
	snd_akm4xxx_reset(ak, 0);
}

/*
 * change the rate of AK4524 on VX442
 */
static void vx442_ak4524_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
{
	unsigned char val;

	val = (rate > 48000) ? 0x65 : 0x60;
	if (snd_akm4xxx_get(ak, 0, 0x02) != val ||
	    snd_akm4xxx_get(ak, 1, 0x02) != val) {
		snd_akm4xxx_reset(ak, 1);
		snd_akm4xxx_write(ak, 0, 0x02, val);
		snd_akm4xxx_write(ak, 1, 0x02, val);
		snd_akm4xxx_reset(ak, 0);
	}
}


/*
 * SPDIF ops for Delta 1010, Dio, 66
 */

/* open callback */
static void delta_open_spdif(struct snd_ice1712 *ice, struct snd_pcm_substream *substream)
{
	ice->spdif.cs8403_stream_bits = ice->spdif.cs8403_bits;
}

/* set up */
static void delta_setup_spdif(struct snd_ice1712 *ice, int rate)
{
	unsigned long flags;
	unsigned int tmp;
	int change;

	spin_lock_irqsave(&ice->reg_lock, flags);
	tmp = ice->spdif.cs8403_stream_bits;
	if (tmp & 0x01)		/* consumer */
		tmp &= (tmp & 0x01) ? ~0x06 : ~0x18;
	switch (rate) {
	case 32000: tmp |= (tmp & 0x01) ? 0x04 : 0x00; break;
	case 44100: tmp |= (tmp & 0x01) ? 0x00 : 0x10; break;
	case 48000: tmp |= (tmp & 0x01) ? 0x02 : 0x08; break;
	default: tmp |= (tmp & 0x01) ? 0x00 : 0x18; break;
	}
	change = ice->spdif.cs8403_stream_bits != tmp;
	ice->spdif.cs8403_stream_bits = tmp;
	spin_unlock_irqrestore(&ice->reg_lock, flags);
	if (change)
		snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &ice->spdif.stream_ctl->id);
	snd_ice1712_delta_cs8403_spdif_write(ice, tmp);
}

#define snd_ice1712_delta1010lt_wordclock_status_info \
	snd_ctl_boolean_mono_info

static int snd_ice1712_delta1010lt_wordclock_status_get(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	char reg = 0x10; /* CS8427 receiver error register */
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);

	if (snd_i2c_sendbytes(ice->cs8427, &reg, 1) != 1)
		snd_printk(KERN_ERR "unable to send register 0x%x byte to CS8427\n", reg);
	snd_i2c_readbytes(ice->cs8427, &reg, 1);
	ucontrol->value.integer.value[0] = (reg & CS8427_UNLOCK) ? 1 : 0;
	return 0;
}

static struct snd_kcontrol_new snd_ice1712_delta1010lt_wordclock_status __devinitdata =
{
	.access =	(SNDRV_CTL_ELEM_ACCESS_READ),
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "Word Clock Status",
	.info =		snd_ice1712_delta1010lt_wordclock_status_info,
	.get =		snd_ice1712_delta1010lt_wordclock_status_get,
};

/*
 * initialize the chips on M-Audio cards
 */

static struct snd_akm4xxx akm_audiophile __devinitdata = {
	.type = SND_AK4528,
	.num_adcs = 2,
	.num_dacs = 2,
	.ops = {
		.set_rate_val = delta_ak4524_set_rate_val
	}
};

static struct snd_ak4xxx_private akm_audiophile_priv __devinitdata = {
	.caddr = 2,
	.cif = 0,
	.data_mask = ICE1712_DELTA_AP_DOUT,
	.clk_mask = ICE1712_DELTA_AP_CCLK,
	.cs_mask = ICE1712_DELTA_AP_CS_CODEC,
	.cs_addr = ICE1712_DELTA_AP_CS_CODEC,
	.cs_none = 0,
	.add_flags = ICE1712_DELTA_AP_CS_DIGITAL,
	.mask_flags = 0,
};

static struct snd_akm4xxx akm_delta410 __devinitdata = {
	.type = SND_AK4529,
	.num_adcs = 2,
	.num_dacs = 8,
	.ops = {
		.set_rate_val = delta_ak4524_set_rate_val
	}
};

static struct snd_ak4xxx_private akm_delta410_priv __devinitdata = {
	.caddr = 0,
	.cif = 0,
	.data_mask = ICE1712_DELTA_AP_DOUT,
	.clk_mask = ICE1712_DELTA_AP_CCLK,
	.cs_mask = ICE1712_DELTA_AP_CS_CODEC,
	.cs_addr = ICE1712_DELTA_AP_CS_CODEC,
	.cs_none = 0,
	.add_flags = ICE1712_DELTA_AP_CS_DIGITAL,
	.mask_flags = 0,
};

static struct snd_akm4xxx akm_delta1010lt __devinitdata = {
	.type = SND_AK4524,
	.num_adcs = 8,
	.num_dacs = 8,
	.ops = {
		.lock = delta1010lt_ak4524_lock,
		.set_rate_val = delta_ak4524_set_rate_val
	}
};

static struct snd_ak4xxx_private akm_delta1010lt_priv __devinitdata = {
	.caddr = 2,
	.cif = 0, /* the default level of the CIF pin from AK4524 */
	.data_mask = ICE1712_DELTA_1010LT_DOUT,
	.clk_mask = ICE1712_DELTA_1010LT_CCLK,
	.cs_mask = 0,
	.cs_addr = 0, /* set later */
	.cs_none = ICE1712_DELTA_1010LT_CS_NONE,
	.add_flags = 0,
	.mask_flags = 0,
};

static struct snd_akm4xxx akm_delta66e __devinitdata = {
	.type = SND_AK4524,
	.num_adcs = 4,
	.num_dacs = 4,
	.ops = {
		.lock = delta66e_ak4524_lock,
		.set_rate_val = delta_ak4524_set_rate_val
	}
};

static struct snd_ak4xxx_private akm_delta66e_priv __devinitdata = {
	.caddr = 2,
	.cif = 0, /* the default level of the CIF pin from AK4524 */
	.data_mask = ICE1712_DELTA_66E_DOUT,
	.clk_mask = ICE1712_DELTA_66E_CCLK,
	.cs_mask = 0,
	.cs_addr = 0, /* set later */
	.cs_none = 0,
	.add_flags = 0,
	.mask_flags = 0,
};


static struct snd_akm4xxx akm_delta44 __devinitdata = {
	.type = SND_AK4524,
	.num_adcs = 4,
	.num_dacs = 4,
	.ops = {
		.lock = delta_ak4524_lock,
		.set_rate_val = delta_ak4524_set_rate_val
	}
};

static struct snd_ak4xxx_private akm_delta44_priv __devinitdata = {
	.caddr = 2,
	.cif = 0, /* the default level of the CIF pin from AK4524 */
	.data_mask = ICE1712_DELTA_CODEC_SERIAL_DATA,
	.clk_mask = ICE1712_DELTA_CODEC_SERIAL_CLOCK,
	.cs_mask = 0,
	.cs_addr = 0, /* set later */
	.cs_none = 0,
	.add_flags = 0,
	.mask_flags = 0,
};

static struct snd_akm4xxx akm_vx442 __devinitdata = {
	.type = SND_AK4524,
	.num_adcs = 4,
	.num_dacs = 4,
	.ops = {
		.lock = vx442_ak4524_lock,
		.set_rate_val = vx442_ak4524_set_rate_val
	}
};

static struct snd_ak4xxx_private akm_vx442_priv __devinitdata = {
	.caddr = 2,
	.cif = 0,
	.data_mask = ICE1712_VX442_DOUT,
	.clk_mask = ICE1712_VX442_CCLK,
	.cs_mask = 0,
	.cs_addr = 0, /* set later */
	.cs_none = 0,
	.add_flags = 0,
	.mask_flags = 0,
};

static int __devinit snd_ice1712_delta_init(struct snd_ice1712 *ice)
{
	int err;
	struct snd_akm4xxx *ak;
	unsigned char tmp;

	if (ice->eeprom.subvendor == ICE1712_SUBDEVICE_DELTA1010 &&
	    ice->eeprom.gpiodir == 0x7b)
		ice->eeprom.subvendor = ICE1712_SUBDEVICE_DELTA1010E;

	if (ice->eeprom.subvendor == ICE1712_SUBDEVICE_DELTA66 &&
	    ice->eeprom.gpiodir == 0xfb)
	    	ice->eeprom.subvendor = ICE1712_SUBDEVICE_DELTA66E;

	/* determine I2C, DACs and ADCs */
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_AUDIOPHILE:
		ice->num_total_dacs = 2;
		ice->num_total_adcs = 2;
		break;
	case ICE1712_SUBDEVICE_DELTA410:
		ice->num_total_dacs = 8;
		ice->num_total_adcs = 2;
		break;
	case ICE1712_SUBDEVICE_DELTA44:
	case ICE1712_SUBDEVICE_DELTA66:
		ice->num_total_dacs = ice->omni ? 8 : 4;
		ice->num_total_adcs = ice->omni ? 8 : 4;
		break;
	case ICE1712_SUBDEVICE_DELTA1010:
	case ICE1712_SUBDEVICE_DELTA1010E:
	case ICE1712_SUBDEVICE_DELTA1010LT:
	case ICE1712_SUBDEVICE_MEDIASTATION:
	case ICE1712_SUBDEVICE_EDIROLDA2496:
		ice->num_total_dacs = 8;
		ice->num_total_adcs = 8;
		break;
	case ICE1712_SUBDEVICE_DELTADIO2496:
		ice->num_total_dacs = 4;	/* two AK4324 codecs */
		break;
	case ICE1712_SUBDEVICE_VX442:
	case ICE1712_SUBDEVICE_DELTA66E:	/* omni not suported yet */
		ice->num_total_dacs = 4;
		ice->num_total_adcs = 4;
		break;
	}

	/* initialize the SPI clock to high */
	tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
	tmp |= ICE1712_DELTA_AP_CCLK;
	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
	udelay(5);

	/* initialize spdif */
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_AUDIOPHILE:
	case ICE1712_SUBDEVICE_DELTA410:
	case ICE1712_SUBDEVICE_DELTA1010E:
	case ICE1712_SUBDEVICE_DELTA1010LT:
	case ICE1712_SUBDEVICE_VX442:
	case ICE1712_SUBDEVICE_DELTA66E:
		if ((err = snd_i2c_bus_create(ice->card, "ICE1712 GPIO 1", NULL, &ice->i2c)) < 0) {
			snd_printk(KERN_ERR "unable to create I2C bus\n");
			return err;
		}
		ice->i2c->private_data = ice;
		ice->i2c->ops = &ap_cs8427_i2c_ops;
		if ((err = snd_ice1712_init_cs8427(ice, CS8427_BASE_ADDR)) < 0)
			return err;
		break;
	case ICE1712_SUBDEVICE_DELTA1010:
	case ICE1712_SUBDEVICE_MEDIASTATION:
		ice->gpio.set_pro_rate = delta_1010_set_rate_val;
		break;
	case ICE1712_SUBDEVICE_DELTADIO2496:
		ice->gpio.set_pro_rate = delta_1010_set_rate_val;
		/* fall thru */
	case ICE1712_SUBDEVICE_DELTA66:
		ice->spdif.ops.open = delta_open_spdif;
		ice->spdif.ops.setup_rate = delta_setup_spdif;
		ice->spdif.ops.default_get = delta_spdif_default_get;
		ice->spdif.ops.default_put = delta_spdif_default_put;
		ice->spdif.ops.stream_get = delta_spdif_stream_get;
		ice->spdif.ops.stream_put = delta_spdif_stream_put;
		/* Set spdif defaults */
		snd_ice1712_delta_cs8403_spdif_write(ice, ice->spdif.cs8403_bits);
		break;
	}

	/* no analog? */
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_DELTA1010:
	case ICE1712_SUBDEVICE_DELTA1010E:
	case ICE1712_SUBDEVICE_DELTADIO2496:
	case ICE1712_SUBDEVICE_MEDIASTATION:
		return 0;
	}

	/* second stage of initialization, analog parts and others */
	ak = ice->akm = kmalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
	if (! ak)
		return -ENOMEM;
	ice->akm_codecs = 1;

	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_AUDIOPHILE:
		err = snd_ice1712_akm4xxx_init(ak, &akm_audiophile, &akm_audiophile_priv, ice);
		break;
	case ICE1712_SUBDEVICE_DELTA410:
		err = snd_ice1712_akm4xxx_init(ak, &akm_delta410, &akm_delta410_priv, ice);
		break;
	case ICE1712_SUBDEVICE_DELTA1010LT:
	case ICE1712_SUBDEVICE_EDIROLDA2496:
		err = snd_ice1712_akm4xxx_init(ak, &akm_delta1010lt, &akm_delta1010lt_priv, ice);
		break;
	case ICE1712_SUBDEVICE_DELTA66:
	case ICE1712_SUBDEVICE_DELTA44:
		err = snd_ice1712_akm4xxx_init(ak, &akm_delta44, &akm_delta44_priv, ice);
		break;
	case ICE1712_SUBDEVICE_VX442:
		err = snd_ice1712_akm4xxx_init(ak, &akm_vx442, &akm_vx442_priv, ice);
		break;
	case ICE1712_SUBDEVICE_DELTA66E:
		err = snd_ice1712_akm4xxx_init(ak, &akm_delta66e, &akm_delta66e_priv, ice);
		break;
	default:
		snd_BUG();
		return -EINVAL;
	}

	return err;
}


/*
 * additional controls for M-Audio cards
 */

static struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_select __devinitdata =
ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Sync", 0, ICE1712_DELTA_WORD_CLOCK_SELECT, 1, 0);
static struct snd_kcontrol_new snd_ice1712_delta1010lt_wordclock_select __devinitdata =
ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Sync", 0, ICE1712_DELTA_1010LT_WORDCLOCK, 0, 0);
static struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_status __devinitdata =
ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Status", 0, ICE1712_DELTA_WORD_CLOCK_STATUS, 1, SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE);
static struct snd_kcontrol_new snd_ice1712_deltadio2496_spdif_in_select __devinitdata =
ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "IEC958 Input Optical", 0, ICE1712_DELTA_SPDIF_INPUT_SELECT, 0, 0);
static struct snd_kcontrol_new snd_ice1712_delta_spdif_in_status __devinitdata =
ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Delta IEC958 Input Status", 0, ICE1712_DELTA_SPDIF_IN_STAT, 1, SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE);


static int __devinit snd_ice1712_delta_add_controls(struct snd_ice1712 *ice)
{
	int err;

	/* 1010 and dio specific controls */
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_DELTA1010:
	case ICE1712_SUBDEVICE_MEDIASTATION:
		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_delta1010_wordclock_select, ice));
		if (err < 0)
			return err;
		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_delta1010_wordclock_status, ice));
		if (err < 0)
			return err;
		break;
	case ICE1712_SUBDEVICE_DELTADIO2496:
		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_deltadio2496_spdif_in_select, ice));
		if (err < 0)
			return err;
		break;
	case ICE1712_SUBDEVICE_DELTA1010E:
	case ICE1712_SUBDEVICE_DELTA1010LT:
		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_delta1010lt_wordclock_select, ice));
		if (err < 0)
			return err;
		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_delta1010lt_wordclock_status, ice));
		if (err < 0)
			return err;
		break;
	}

	/* normal spdif controls */
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_DELTA1010:
	case ICE1712_SUBDEVICE_DELTADIO2496:
	case ICE1712_SUBDEVICE_DELTA66:
	case ICE1712_SUBDEVICE_MEDIASTATION:
		err = snd_ice1712_spdif_build_controls(ice);
		if (err < 0)
			return err;
		break;
	}

	/* spdif status in */
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_DELTA1010:
	case ICE1712_SUBDEVICE_DELTADIO2496:
	case ICE1712_SUBDEVICE_DELTA66:
	case ICE1712_SUBDEVICE_MEDIASTATION:
		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_delta_spdif_in_status, ice));
		if (err < 0)
			return err;
		break;
	}

	/* ak4524 controls */
	switch (ice->eeprom.subvendor) {
	case ICE1712_SUBDEVICE_DELTA1010LT:
	case ICE1712_SUBDEVICE_AUDIOPHILE:
	case ICE1712_SUBDEVICE_DELTA410:
	case ICE1712_SUBDEVICE_DELTA44:
	case ICE1712_SUBDEVICE_DELTA66:
	case ICE1712_SUBDEVICE_VX442:
	case ICE1712_SUBDEVICE_DELTA66E:
	case ICE1712_SUBDEVICE_EDIROLDA2496:
		err = snd_ice1712_akm4xxx_build_controls(ice);
		if (err < 0)
			return err;
		break;
	}

	return 0;
}


/* entry point */
struct snd_ice1712_card_info snd_ice1712_delta_cards[] __devinitdata = {
	{
		.subvendor = ICE1712_SUBDEVICE_DELTA1010,
		.name = "M Audio Delta 1010",
		.model = "delta1010",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_DELTADIO2496,
		.name = "M Audio Delta DiO 2496",
		.model = "dio2496",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
		.no_mpu401 = 1,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_DELTA66,
		.name = "M Audio Delta 66",
		.model = "delta66",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
		.no_mpu401 = 1,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_DELTA44,
		.name = "M Audio Delta 44",
		.model = "delta44",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
		.no_mpu401 = 1,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_AUDIOPHILE,
		.name = "M Audio Audiophile 24/96",
		.model = "audiophile",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_DELTA410,
		.name = "M Audio Delta 410",
		.model = "delta410",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_DELTA1010LT,
		.name = "M Audio Delta 1010LT",
		.model = "delta1010lt",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_VX442,
		.name = "Digigram VX442",
		.model = "vx442",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
		.no_mpu401 = 1,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_MEDIASTATION,
		.name = "Lionstracs Mediastation",
		.model = "mediastation",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
	},
	{
		.subvendor = ICE1712_SUBDEVICE_EDIROLDA2496,
		.name = "Edirol DA2496",
		.model = "da2496",
		.chip_init = snd_ice1712_delta_init,
		.build_controls = snd_ice1712_delta_add_controls,
	},
	{ } /* terminator */
};