forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 1
/
rme96.c
2416 lines (2171 loc) · 66.7 KB
/
rme96.c
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
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* ALSA driver for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST audio
* interfaces
*
* Copyright (c) 2000, 2001 Anders Torger <[email protected]>
*
* Thanks to Henk Hesselink <[email protected]> for the analog volume control
* code.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/asoundef.h>
#include <sound/initval.h>
#include <asm/io.h>
/* note, two last pcis should be equal, it is not a bug */
MODULE_AUTHOR("Anders Torger <[email protected]>");
MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
"Digi96/8 PAD");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{RME,Digi96},"
"{RME,Digi96/8},"
"{RME,Digi96/8 PRO},"
"{RME,Digi96/8 PST},"
"{RME,Digi96/8 PAD}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
/*
* Defines for RME Digi96 series, from internal RME reference documents
* dated 12.01.00
*/
#define RME96_SPDIF_NCHANNELS 2
/* Playback and capture buffer size */
#define RME96_BUFFER_SIZE 0x10000
/* IO area size */
#define RME96_IO_SIZE 0x60000
/* IO area offsets */
#define RME96_IO_PLAY_BUFFER 0x0
#define RME96_IO_REC_BUFFER 0x10000
#define RME96_IO_CONTROL_REGISTER 0x20000
#define RME96_IO_ADDITIONAL_REG 0x20004
#define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
#define RME96_IO_CONFIRM_REC_IRQ 0x2000C
#define RME96_IO_SET_PLAY_POS 0x40000
#define RME96_IO_RESET_PLAY_POS 0x4FFFC
#define RME96_IO_SET_REC_POS 0x50000
#define RME96_IO_RESET_REC_POS 0x5FFFC
#define RME96_IO_GET_PLAY_POS 0x20000
#define RME96_IO_GET_REC_POS 0x30000
/* Write control register bits */
#define RME96_WCR_START (1 << 0)
#define RME96_WCR_START_2 (1 << 1)
#define RME96_WCR_GAIN_0 (1 << 2)
#define RME96_WCR_GAIN_1 (1 << 3)
#define RME96_WCR_MODE24 (1 << 4)
#define RME96_WCR_MODE24_2 (1 << 5)
#define RME96_WCR_BM (1 << 6)
#define RME96_WCR_BM_2 (1 << 7)
#define RME96_WCR_ADAT (1 << 8)
#define RME96_WCR_FREQ_0 (1 << 9)
#define RME96_WCR_FREQ_1 (1 << 10)
#define RME96_WCR_DS (1 << 11)
#define RME96_WCR_PRO (1 << 12)
#define RME96_WCR_EMP (1 << 13)
#define RME96_WCR_SEL (1 << 14)
#define RME96_WCR_MASTER (1 << 15)
#define RME96_WCR_PD (1 << 16)
#define RME96_WCR_INP_0 (1 << 17)
#define RME96_WCR_INP_1 (1 << 18)
#define RME96_WCR_THRU_0 (1 << 19)
#define RME96_WCR_THRU_1 (1 << 20)
#define RME96_WCR_THRU_2 (1 << 21)
#define RME96_WCR_THRU_3 (1 << 22)
#define RME96_WCR_THRU_4 (1 << 23)
#define RME96_WCR_THRU_5 (1 << 24)
#define RME96_WCR_THRU_6 (1 << 25)
#define RME96_WCR_THRU_7 (1 << 26)
#define RME96_WCR_DOLBY (1 << 27)
#define RME96_WCR_MONITOR_0 (1 << 28)
#define RME96_WCR_MONITOR_1 (1 << 29)
#define RME96_WCR_ISEL (1 << 30)
#define RME96_WCR_IDIS (1 << 31)
#define RME96_WCR_BITPOS_GAIN_0 2
#define RME96_WCR_BITPOS_GAIN_1 3
#define RME96_WCR_BITPOS_FREQ_0 9
#define RME96_WCR_BITPOS_FREQ_1 10
#define RME96_WCR_BITPOS_INP_0 17
#define RME96_WCR_BITPOS_INP_1 18
#define RME96_WCR_BITPOS_MONITOR_0 28
#define RME96_WCR_BITPOS_MONITOR_1 29
/* Read control register bits */
#define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
#define RME96_RCR_IRQ_2 (1 << 16)
#define RME96_RCR_T_OUT (1 << 17)
#define RME96_RCR_DEV_ID_0 (1 << 21)
#define RME96_RCR_DEV_ID_1 (1 << 22)
#define RME96_RCR_LOCK (1 << 23)
#define RME96_RCR_VERF (1 << 26)
#define RME96_RCR_F0 (1 << 27)
#define RME96_RCR_F1 (1 << 28)
#define RME96_RCR_F2 (1 << 29)
#define RME96_RCR_AUTOSYNC (1 << 30)
#define RME96_RCR_IRQ (1 << 31)
#define RME96_RCR_BITPOS_F0 27
#define RME96_RCR_BITPOS_F1 28
#define RME96_RCR_BITPOS_F2 29
/* Additonal register bits */
#define RME96_AR_WSEL (1 << 0)
#define RME96_AR_ANALOG (1 << 1)
#define RME96_AR_FREQPAD_0 (1 << 2)
#define RME96_AR_FREQPAD_1 (1 << 3)
#define RME96_AR_FREQPAD_2 (1 << 4)
#define RME96_AR_PD2 (1 << 5)
#define RME96_AR_DAC_EN (1 << 6)
#define RME96_AR_CLATCH (1 << 7)
#define RME96_AR_CCLK (1 << 8)
#define RME96_AR_CDATA (1 << 9)
#define RME96_AR_BITPOS_F0 2
#define RME96_AR_BITPOS_F1 3
#define RME96_AR_BITPOS_F2 4
/* Monitor tracks */
#define RME96_MONITOR_TRACKS_1_2 0
#define RME96_MONITOR_TRACKS_3_4 1
#define RME96_MONITOR_TRACKS_5_6 2
#define RME96_MONITOR_TRACKS_7_8 3
/* Attenuation */
#define RME96_ATTENUATION_0 0
#define RME96_ATTENUATION_6 1
#define RME96_ATTENUATION_12 2
#define RME96_ATTENUATION_18 3
/* Input types */
#define RME96_INPUT_OPTICAL 0
#define RME96_INPUT_COAXIAL 1
#define RME96_INPUT_INTERNAL 2
#define RME96_INPUT_XLR 3
#define RME96_INPUT_ANALOG 4
/* Clock modes */
#define RME96_CLOCKMODE_SLAVE 0
#define RME96_CLOCKMODE_MASTER 1
#define RME96_CLOCKMODE_WORDCLOCK 2
/* Block sizes in bytes */
#define RME96_SMALL_BLOCK_SIZE 2048
#define RME96_LARGE_BLOCK_SIZE 8192
/* Volume control */
#define RME96_AD1852_VOL_BITS 14
#define RME96_AD1855_VOL_BITS 10
struct rme96 {
spinlock_t lock;
int irq;
unsigned long port;
void __iomem *iobase;
u32 wcreg; /* cached write control register value */
u32 wcreg_spdif; /* S/PDIF setup */
u32 wcreg_spdif_stream; /* S/PDIF setup (temporary) */
u32 rcreg; /* cached read control register value */
u32 areg; /* cached additional register value */
u16 vol[2]; /* cached volume of analog output */
u8 rev; /* card revision number */
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
int playback_frlog; /* log2 of framesize */
int capture_frlog;
size_t playback_periodsize; /* in bytes, zero if not used */
size_t capture_periodsize; /* in bytes, zero if not used */
struct snd_card *card;
struct snd_pcm *spdif_pcm;
struct snd_pcm *adat_pcm;
struct pci_dev *pci;
struct snd_kcontrol *spdif_ctl;
};
static DEFINE_PCI_DEVICE_TABLE(snd_rme96_ids) = {
{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96), 0, },
{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8), 0, },
{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO), 0, },
{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST), 0, },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
#define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
#define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
#define RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
#define RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
(rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
#define RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
#define RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
#define RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
static int
snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
static int
snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
static int
snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
int cmd);
static int
snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
int cmd);
static snd_pcm_uframes_t
snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
static snd_pcm_uframes_t
snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
static void __devinit
snd_rme96_proc_init(struct rme96 *rme96);
static int
snd_rme96_create_switches(struct snd_card *card,
struct rme96 *rme96);
static int
snd_rme96_getinputtype(struct rme96 *rme96);
static inline unsigned int
snd_rme96_playback_ptr(struct rme96 *rme96)
{
return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
}
static inline unsigned int
snd_rme96_capture_ptr(struct rme96 *rme96)
{
return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
}
static int
snd_rme96_playback_silence(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
snd_pcm_uframes_t count)
{
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
count <<= rme96->playback_frlog;
pos <<= rme96->playback_frlog;
memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
0, count);
return 0;
}
static int
snd_rme96_playback_copy(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
void __user *src,
snd_pcm_uframes_t count)
{
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
count <<= rme96->playback_frlog;
pos <<= rme96->playback_frlog;
copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
count);
return 0;
}
static int
snd_rme96_capture_copy(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
void __user *dst,
snd_pcm_uframes_t count)
{
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
count <<= rme96->capture_frlog;
pos <<= rme96->capture_frlog;
copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
count);
return 0;
}
/*
* Digital output capabilities (S/PDIF)
*/
static struct snd_pcm_hardware snd_rme96_playback_spdif_info =
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE),
.rates = (SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_64000 |
SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000),
.rate_min = 32000,
.rate_max = 96000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = RME96_BUFFER_SIZE,
.period_bytes_min = RME96_SMALL_BLOCK_SIZE,
.period_bytes_max = RME96_LARGE_BLOCK_SIZE,
.periods_min = RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
.periods_max = RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
.fifo_size = 0,
};
/*
* Digital input capabilities (S/PDIF)
*/
static struct snd_pcm_hardware snd_rme96_capture_spdif_info =
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE),
.rates = (SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_64000 |
SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000),
.rate_min = 32000,
.rate_max = 96000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = RME96_BUFFER_SIZE,
.period_bytes_min = RME96_SMALL_BLOCK_SIZE,
.period_bytes_max = RME96_LARGE_BLOCK_SIZE,
.periods_min = RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
.periods_max = RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
.fifo_size = 0,
};
/*
* Digital output capabilities (ADAT)
*/
static struct snd_pcm_hardware snd_rme96_playback_adat_info =
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE),
.rates = (SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000),
.rate_min = 44100,
.rate_max = 48000,
.channels_min = 8,
.channels_max = 8,
.buffer_bytes_max = RME96_BUFFER_SIZE,
.period_bytes_min = RME96_SMALL_BLOCK_SIZE,
.period_bytes_max = RME96_LARGE_BLOCK_SIZE,
.periods_min = RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
.periods_max = RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
.fifo_size = 0,
};
/*
* Digital input capabilities (ADAT)
*/
static struct snd_pcm_hardware snd_rme96_capture_adat_info =
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE),
.rates = (SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000),
.rate_min = 44100,
.rate_max = 48000,
.channels_min = 8,
.channels_max = 8,
.buffer_bytes_max = RME96_BUFFER_SIZE,
.period_bytes_min = RME96_SMALL_BLOCK_SIZE,
.period_bytes_max = RME96_LARGE_BLOCK_SIZE,
.periods_min = RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
.periods_max = RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
.fifo_size = 0,
};
/*
* The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
* of the AD1852 or AD1852 D/A converter on the board. CDATA must be set up
* on the falling edge of CCLK and be stable on the rising edge. The rising
* edge of CLATCH after the last data bit clocks in the whole data word.
* A fast processor could probably drive the SPI interface faster than the
* DAC can handle (3MHz for the 1855, unknown for the 1852). The udelay(1)
* limits the data rate to 500KHz and only causes a delay of 33 microsecs.
*
* NOTE: increased delay from 1 to 10, since there where problems setting
* the volume.
*/
static void
snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
{
int i;
for (i = 0; i < 16; i++) {
if (val & 0x8000) {
rme96->areg |= RME96_AR_CDATA;
} else {
rme96->areg &= ~RME96_AR_CDATA;
}
rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
udelay(10);
rme96->areg |= RME96_AR_CCLK;
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
udelay(10);
val <<= 1;
}
rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
rme96->areg |= RME96_AR_CLATCH;
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
udelay(10);
rme96->areg &= ~RME96_AR_CLATCH;
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
}
static void
snd_rme96_apply_dac_volume(struct rme96 *rme96)
{
if (RME96_DAC_IS_1852(rme96)) {
snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
} else if (RME96_DAC_IS_1855(rme96)) {
snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
}
}
static void
snd_rme96_reset_dac(struct rme96 *rme96)
{
writel(rme96->wcreg | RME96_WCR_PD,
rme96->iobase + RME96_IO_CONTROL_REGISTER);
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
}
static int
snd_rme96_getmontracks(struct rme96 *rme96)
{
return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
(((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
}
static int
snd_rme96_setmontracks(struct rme96 *rme96,
int montracks)
{
if (montracks & 1) {
rme96->wcreg |= RME96_WCR_MONITOR_0;
} else {
rme96->wcreg &= ~RME96_WCR_MONITOR_0;
}
if (montracks & 2) {
rme96->wcreg |= RME96_WCR_MONITOR_1;
} else {
rme96->wcreg &= ~RME96_WCR_MONITOR_1;
}
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
return 0;
}
static int
snd_rme96_getattenuation(struct rme96 *rme96)
{
return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
(((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
}
static int
snd_rme96_setattenuation(struct rme96 *rme96,
int attenuation)
{
switch (attenuation) {
case 0:
rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
~RME96_WCR_GAIN_1;
break;
case 1:
rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
~RME96_WCR_GAIN_1;
break;
case 2:
rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
RME96_WCR_GAIN_1;
break;
case 3:
rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
RME96_WCR_GAIN_1;
break;
default:
return -EINVAL;
}
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
return 0;
}
static int
snd_rme96_capture_getrate(struct rme96 *rme96,
int *is_adat)
{
int n, rate;
*is_adat = 0;
if (rme96->areg & RME96_AR_ANALOG) {
/* Analog input, overrides S/PDIF setting */
n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
(((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
switch (n) {
case 1:
rate = 32000;
break;
case 2:
rate = 44100;
break;
case 3:
rate = 48000;
break;
default:
return -1;
}
return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
}
rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
if (rme96->rcreg & RME96_RCR_LOCK) {
/* ADAT rate */
*is_adat = 1;
if (rme96->rcreg & RME96_RCR_T_OUT) {
return 48000;
}
return 44100;
}
if (rme96->rcreg & RME96_RCR_VERF) {
return -1;
}
/* S/PDIF rate */
n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
(((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
(((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
switch (n) {
case 0:
if (rme96->rcreg & RME96_RCR_T_OUT) {
return 64000;
}
return -1;
case 3: return 96000;
case 4: return 88200;
case 5: return 48000;
case 6: return 44100;
case 7: return 32000;
default:
break;
}
return -1;
}
static int
snd_rme96_playback_getrate(struct rme96 *rme96)
{
int rate, dummy;
if (!(rme96->wcreg & RME96_WCR_MASTER) &&
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
{
/* slave clock */
return rate;
}
rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
switch (rate) {
case 1:
rate = 32000;
break;
case 2:
rate = 44100;
break;
case 3:
rate = 48000;
break;
default:
return -1;
}
return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
}
static int
snd_rme96_playback_setrate(struct rme96 *rme96,
int rate)
{
int ds;
ds = rme96->wcreg & RME96_WCR_DS;
switch (rate) {
case 32000:
rme96->wcreg &= ~RME96_WCR_DS;
rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
~RME96_WCR_FREQ_1;
break;
case 44100:
rme96->wcreg &= ~RME96_WCR_DS;
rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
~RME96_WCR_FREQ_0;
break;
case 48000:
rme96->wcreg &= ~RME96_WCR_DS;
rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
RME96_WCR_FREQ_1;
break;
case 64000:
rme96->wcreg |= RME96_WCR_DS;
rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
~RME96_WCR_FREQ_1;
break;
case 88200:
rme96->wcreg |= RME96_WCR_DS;
rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
~RME96_WCR_FREQ_0;
break;
case 96000:
rme96->wcreg |= RME96_WCR_DS;
rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
RME96_WCR_FREQ_1;
break;
default:
return -EINVAL;
}
if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
(ds && !(rme96->wcreg & RME96_WCR_DS)))
{
/* change to/from double-speed: reset the DAC (if available) */
snd_rme96_reset_dac(rme96);
} else {
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
}
return 0;
}
static int
snd_rme96_capture_analog_setrate(struct rme96 *rme96,
int rate)
{
switch (rate) {
case 32000:
rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
break;
case 44100:
rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
break;
case 48000:
rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
break;
case 64000:
if (rme96->rev < 4) {
return -EINVAL;
}
rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
break;
case 88200:
if (rme96->rev < 4) {
return -EINVAL;
}
rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
break;
case 96000:
rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
break;
default:
return -EINVAL;
}
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
return 0;
}
static int
snd_rme96_setclockmode(struct rme96 *rme96,
int mode)
{
switch (mode) {
case RME96_CLOCKMODE_SLAVE:
/* AutoSync */
rme96->wcreg &= ~RME96_WCR_MASTER;
rme96->areg &= ~RME96_AR_WSEL;
break;
case RME96_CLOCKMODE_MASTER:
/* Internal */
rme96->wcreg |= RME96_WCR_MASTER;
rme96->areg &= ~RME96_AR_WSEL;
break;
case RME96_CLOCKMODE_WORDCLOCK:
/* Word clock is a master mode */
rme96->wcreg |= RME96_WCR_MASTER;
rme96->areg |= RME96_AR_WSEL;
break;
default:
return -EINVAL;
}
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
return 0;
}
static int
snd_rme96_getclockmode(struct rme96 *rme96)
{
if (rme96->areg & RME96_AR_WSEL) {
return RME96_CLOCKMODE_WORDCLOCK;
}
return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
RME96_CLOCKMODE_SLAVE;
}
static int
snd_rme96_setinputtype(struct rme96 *rme96,
int type)
{
int n;
switch (type) {
case RME96_INPUT_OPTICAL:
rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
~RME96_WCR_INP_1;
break;
case RME96_INPUT_COAXIAL:
rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
~RME96_WCR_INP_1;
break;
case RME96_INPUT_INTERNAL:
rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
RME96_WCR_INP_1;
break;
case RME96_INPUT_XLR:
if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
(rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
rme96->rev > 4))
{
/* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
return -EINVAL;
}
rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
RME96_WCR_INP_1;
break;
case RME96_INPUT_ANALOG:
if (!RME96_HAS_ANALOG_IN(rme96)) {
return -EINVAL;
}
rme96->areg |= RME96_AR_ANALOG;
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
if (rme96->rev < 4) {
/*
* Revision less than 004 does not support 64 and
* 88.2 kHz
*/
if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
snd_rme96_capture_analog_setrate(rme96, 44100);
}
if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
snd_rme96_capture_analog_setrate(rme96, 32000);
}
}
return 0;
default:
return -EINVAL;
}
if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
rme96->areg &= ~RME96_AR_ANALOG;
writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
}
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
return 0;
}
static int
snd_rme96_getinputtype(struct rme96 *rme96)
{
if (rme96->areg & RME96_AR_ANALOG) {
return RME96_INPUT_ANALOG;
}
return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
(((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
}
static void
snd_rme96_setframelog(struct rme96 *rme96,
int n_channels,
int is_playback)
{
int frlog;
if (n_channels == 2) {
frlog = 1;
} else {
/* assume 8 channels */
frlog = 3;
}
if (is_playback) {
frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
rme96->playback_frlog = frlog;
} else {
frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
rme96->capture_frlog = frlog;
}
}
static int
snd_rme96_playback_setformat(struct rme96 *rme96,
int format)
{
switch (format) {
case SNDRV_PCM_FORMAT_S16_LE:
rme96->wcreg &= ~RME96_WCR_MODE24;
break;
case SNDRV_PCM_FORMAT_S32_LE:
rme96->wcreg |= RME96_WCR_MODE24;
break;
default:
return -EINVAL;
}
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
return 0;
}
static int
snd_rme96_capture_setformat(struct rme96 *rme96,
int format)
{
switch (format) {
case SNDRV_PCM_FORMAT_S16_LE:
rme96->wcreg &= ~RME96_WCR_MODE24_2;
break;
case SNDRV_PCM_FORMAT_S32_LE:
rme96->wcreg |= RME96_WCR_MODE24_2;
break;
default:
return -EINVAL;
}
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
return 0;
}
static void
snd_rme96_set_period_properties(struct rme96 *rme96,
size_t period_bytes)
{
switch (period_bytes) {
case RME96_LARGE_BLOCK_SIZE:
rme96->wcreg &= ~RME96_WCR_ISEL;
break;
case RME96_SMALL_BLOCK_SIZE:
rme96->wcreg |= RME96_WCR_ISEL;
break;
default:
snd_BUG();
break;
}
rme96->wcreg &= ~RME96_WCR_IDIS;
writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
}
static int
snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int err, rate, dummy;
runtime->dma_area = (void __force *)(rme96->iobase +
RME96_IO_PLAY_BUFFER);
runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
runtime->dma_bytes = RME96_BUFFER_SIZE;
spin_lock_irq(&rme96->lock);
if (!(rme96->wcreg & RME96_WCR_MASTER) &&
snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
(rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
{
/* slave clock */
if ((int)params_rate(params) != rate) {
spin_unlock_irq(&rme96->lock);
return -EIO;
}
} else if ((err = snd_rme96_playback_setrate(rme96, params_rate(params))) < 0) {
spin_unlock_irq(&rme96->lock);
return err;
}
if ((err = snd_rme96_playback_setformat(rme96, params_format(params))) < 0) {
spin_unlock_irq(&rme96->lock);
return err;
}
snd_rme96_setframelog(rme96, params_channels(params), 1);
if (rme96->capture_periodsize != 0) {
if (params_period_size(params) << rme96->playback_frlog !=
rme96->capture_periodsize)
{
spin_unlock_irq(&rme96->lock);
return -EBUSY;
}
}
rme96->playback_periodsize =
params_period_size(params) << rme96->playback_frlog;
snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
/* S/PDIF setup */
if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
}
spin_unlock_irq(&rme96->lock);
return 0;
}
static int
snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct rme96 *rme96 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int err, isadat, rate;