forked from grate-driver/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
/
cs46xx.c
5444 lines (4901 loc) · 157 KB
/
cs46xx.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
/*
* Crystal SoundFusion CS46xx driver
*
* Copyright 1998-2001 Cirrus Logic Corporation <pcaudio@crystal.cirrus.com>
* <twoller@crystal.cirrus.com>
* Copyright 1999-2000 Jaroslav Kysela <perex@suse.cz>
* Copyright 2000 Alan Cox <alan@redhat.com>
*
* The core of this code is taken from the ALSA project driver by
* Jaroslav. Please send Jaroslav the credit for the driver and
* report bugs in this port to <alan@redhat.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., 675 Mass Ave, Cambridge, MA 02139, USA.
* Current maintainers:
* Cirrus Logic Corporation, Thomas Woller (tw)
* <twoller@crystal.cirrus.com>
* Nils Faerber (nf)
* <nils@kernelconcepts.de>
* Thanks to David Pollard for testing.
*
* Changes:
* 20000909-nf Changed cs_read, cs_write and drain_dac
* 20001025-tw Separate Playback/Capture structs and buffers.
* Added Scatter/Gather support for Playback.
* Added Capture.
* 20001027-nf Port to kernel 2.4.0-test9, some clean-ups
* Start of powermanagement support (CS46XX_PM).
* 20001128-tw Add module parm for default buffer order.
* added DMA_GFP flag to kmalloc dma buffer allocs.
* backfill silence to eliminate stuttering on
* underruns.
* 20001201-tw add resyncing of swptr on underruns.
* 20001205-tw-nf fixed GETOSPACE ioctl() after open()
* 20010113-tw patch from Hans Grobler general cleanup.
* 20010117-tw 2.4.0 pci cleanup, wrapper code for 2.2.16-2.4.0
* 20010118-tw basic PM support for 2.2.16+ and 2.4.0/2.4.2.
* 20010228-dh patch from David Huggins - cs_update_ptr recursion.
* 20010409-tw add hercules game theatre XP amp code.
* 20010420-tw cleanup powerdown/up code.
* 20010521-tw eliminate pops, and fixes for powerdown.
* 20010525-tw added fixes for thinkpads with powerdown logic.
* 20010723-sh patch from Horms (Simon Horman) -
* SOUND_PCM_READ_BITS returns bits as set in driver
* rather than a logical or of the possible values.
* Various ioctls handle the case where the device
* is open for reading or writing but not both better.
*
* Status:
* Playback/Capture supported from 8k-48k.
* 16Bit Signed LE & 8Bit Unsigned, with Mono or Stereo supported.
*
* APM/PM - 2.2.x APM is enabled and functioning fine. APM can also
* be enabled for 2.4.x by modifying the CS46XX_ACPI_SUPPORT macro
* definition.
*
* Hercules Game Theatre XP - the EGPIO2 pin controls the external Amp,
* so, use the drain/polarity to enable.
* hercules_egpio_disable set to 1, will force a 0 to EGPIODR.
*
* VTB Santa Cruz - the GPIO7/GPIO8 on the Secondary Codec control
* the external amplifier for the "back" speakers, since we do not
* support the secondary codec then this external amp is also not
* turned on.
*/
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/sound.h>
#include <linux/slab.h>
#include <linux/soundcard.h>
#include <linux/pci.h>
#include <linux/bitops.h>
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/ac97_codec.h>
#include <linux/mutex.h>
#include <linux/mm.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/uaccess.h>
#include "cs46xxpm.h"
#include "cs46xx_wrapper-24.h"
#include "cs461x.h"
/* MIDI buffer sizes */
#define CS_MIDIINBUF 500
#define CS_MIDIOUTBUF 500
#define ADC_RUNNING 1
#define DAC_RUNNING 2
#define CS_FMT_16BIT 1 /* These are fixed in fact */
#define CS_FMT_STEREO 2
#define CS_FMT_MASK 3
#define CS_TYPE_ADC 1
#define CS_TYPE_DAC 2
#define CS_TRUE 1
#define CS_FALSE 0
#define CS_INC_USE_COUNT(m) (atomic_inc(m))
#define CS_DEC_USE_COUNT(m) (atomic_dec(m))
#define CS_DEC_AND_TEST(m) (atomic_dec_and_test(m))
#define CS_IN_USE(m) (atomic_read(m) != 0)
#define CS_DBGBREAKPOINT {__asm__("INT $3");}
/*
* CS461x definitions
*/
#define CS461X_BA0_SIZE 0x2000
#define CS461X_BA1_DATA0_SIZE 0x3000
#define CS461X_BA1_DATA1_SIZE 0x3800
#define CS461X_BA1_PRG_SIZE 0x7000
#define CS461X_BA1_REG_SIZE 0x0100
#define GOF_PER_SEC 200
#define CSDEBUG_INTERFACE 1
#define CSDEBUG 1
/*
* Turn on/off debugging compilation by using 1/0 respectively for CSDEBUG
*
*
* CSDEBUG is usual mode is set to 1, then use the
* cs_debuglevel and cs_debugmask to turn on or off debugging.
* Debug level of 1 has been defined to be kernel errors and info
* that should be printed on any released driver.
*/
#if CSDEBUG
#define CS_DBGOUT(mask,level,x) if ((cs_debuglevel >= (level)) && ((mask) & cs_debugmask)) {x;}
#else
#define CS_DBGOUT(mask,level,x)
#endif
/*
* cs_debugmask areas
*/
#define CS_INIT 0x00000001 /* initialization and probe functions */
#define CS_ERROR 0x00000002 /* tmp debugging bit placeholder */
#define CS_INTERRUPT 0x00000004 /* interrupt handler (separate from all other) */
#define CS_FUNCTION 0x00000008 /* enter/leave functions */
#define CS_WAVE_WRITE 0x00000010 /* write information for wave */
#define CS_WAVE_READ 0x00000020 /* read information for wave */
#define CS_MIDI_WRITE 0x00000040 /* write information for midi */
#define CS_MIDI_READ 0x00000080 /* read information for midi */
#define CS_MPU401_WRITE 0x00000100 /* write information for mpu401 */
#define CS_MPU401_READ 0x00000200 /* read information for mpu401 */
#define CS_OPEN 0x00000400 /* all open functions in the driver */
#define CS_RELEASE 0x00000800 /* all release functions in the driver */
#define CS_PARMS 0x00001000 /* functional and operational parameters */
#define CS_IOCTL 0x00002000 /* ioctl (non-mixer) */
#define CS_PM 0x00004000 /* PM */
#define CS_TMP 0x10000000 /* tmp debug mask bit */
#define CS_IOCTL_CMD_SUSPEND 0x1 // suspend
#define CS_IOCTL_CMD_RESUME 0x2 // resume
#if CSDEBUG
static unsigned long cs_debuglevel = 1; /* levels range from 1-9 */
module_param(cs_debuglevel, ulong, 0644);
static unsigned long cs_debugmask = CS_INIT | CS_ERROR; /* use CS_DBGOUT with various mask values */
module_param(cs_debugmask, ulong, 0644);
#endif
static unsigned long hercules_egpio_disable; /* if non-zero set all EGPIO to 0 */
module_param(hercules_egpio_disable, ulong, 0);
static unsigned long initdelay = 700; /* PM delay in millisecs */
module_param(initdelay, ulong, 0);
static unsigned long powerdown = -1; /* turn on/off powerdown processing in driver */
module_param(powerdown, ulong, 0);
#define DMABUF_DEFAULTORDER 3
static unsigned long defaultorder = DMABUF_DEFAULTORDER;
module_param(defaultorder, ulong, 0);
static int external_amp;
module_param(external_amp, bool, 0);
static int thinkpad;
module_param(thinkpad, bool, 0);
/*
* set the powerdown module parm to 0 to disable all
* powerdown. also set thinkpad to 1 to disable powerdown,
* but also to enable the clkrun functionality.
*/
static unsigned cs_powerdown = 1;
static unsigned cs_laptop_wait = 1;
/* An instance of the 4610 channel */
struct cs_channel
{
int used;
int num;
void *state;
};
#define CS46XX_MAJOR_VERSION "1"
#define CS46XX_MINOR_VERSION "28"
#ifdef __ia64__
#define CS46XX_ARCH "64" //architecture key
#else
#define CS46XX_ARCH "32" //architecture key
#endif
static struct list_head cs46xx_devs = { &cs46xx_devs, &cs46xx_devs };
/* magic numbers to protect our data structures */
#define CS_CARD_MAGIC 0x43525553 /* "CRUS" */
#define CS_STATE_MAGIC 0x4c4f4749 /* "LOGI" */
#define NR_HW_CH 3
/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
#define NR_AC97 2
static const unsigned sample_size[] = { 1, 2, 2, 4 };
static const unsigned sample_shift[] = { 0, 1, 1, 2 };
/* "software" or virtual channel, an instance of opened /dev/dsp */
struct cs_state {
unsigned int magic;
struct cs_card *card; /* Card info */
/* single open lock mechanism, only used for recording */
struct mutex open_mutex;
wait_queue_head_t open_wait;
/* file mode */
mode_t open_mode;
/* virtual channel number */
int virt;
struct dmabuf {
/* wave sample stuff */
unsigned int rate;
unsigned char fmt, enable;
/* hardware channel */
struct cs_channel *channel;
int pringbuf; /* Software ring slot */
void *pbuf; /* 4K hardware DMA buffer */
/* OSS buffer management stuff */
void *rawbuf;
dma_addr_t dma_handle;
unsigned buforder;
unsigned numfrag;
unsigned fragshift;
unsigned divisor;
unsigned type;
void *tmpbuff; /* tmp buffer for sample conversions */
dma_addr_t dmaaddr;
dma_addr_t dmaaddr_tmpbuff;
unsigned buforder_tmpbuff; /* Log base 2 of size in bytes.. */
/* our buffer acts like a circular ring */
unsigned hwptr; /* where dma last started, updated by update_ptr */
unsigned swptr; /* where driver last clear/filled, updated by read/write */
int count; /* bytes to be comsumed or been generated by dma machine */
unsigned total_bytes; /* total bytes dmaed by hardware */
unsigned blocks; /* total blocks */
unsigned error; /* number of over/underruns */
unsigned underrun; /* underrun pending before next write has occurred */
wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */
/* redundant, but makes calculations easier */
unsigned fragsize;
unsigned dmasize;
unsigned fragsamples;
/* OSS stuff */
unsigned mapped:1;
unsigned ready:1;
unsigned endcleared:1;
unsigned SGok:1;
unsigned update_flag;
unsigned ossfragshift;
int ossmaxfrags;
unsigned subdivision;
} dmabuf;
/* Guard against mmap/write/read races */
struct mutex sem;
};
struct cs_card {
struct cs_channel channel[2];
unsigned int magic;
/* We keep cs461x cards in a linked list */
struct cs_card *next;
/* The cs461x has a certain amount of cross channel interaction
so we use a single per card lock */
spinlock_t lock;
/* Keep AC97 sane */
spinlock_t ac97_lock;
/* mixer use count */
atomic_t mixer_use_cnt;
/* PCI device stuff */
struct pci_dev *pci_dev;
struct list_head list;
unsigned int pctl, cctl; /* Hardware DMA flag sets */
/* soundcore stuff */
int dev_audio;
int dev_midi;
/* structures for abstraction of hardware facilities, codecs, banks and channels*/
struct ac97_codec *ac97_codec[NR_AC97];
struct cs_state *states[2];
u16 ac97_features;
int amplifier; /* Amplifier control */
void (*amplifier_ctrl)(struct cs_card *, int);
void (*amp_init)(struct cs_card *);
int active; /* Active clocking */
void (*active_ctrl)(struct cs_card *, int);
/* hardware resources */
unsigned long ba0_addr;
unsigned long ba1_addr;
u32 irq;
/* mappings */
void __iomem *ba0;
union
{
struct
{
u8 __iomem *data0;
u8 __iomem *data1;
u8 __iomem *pmem;
u8 __iomem *reg;
} name;
u8 __iomem *idx[4];
} ba1;
/* Function support */
struct cs_channel *(*alloc_pcm_channel)(struct cs_card *);
struct cs_channel *(*alloc_rec_pcm_channel)(struct cs_card *);
void (*free_pcm_channel)(struct cs_card *, int chan);
/* /dev/midi stuff */
struct {
unsigned ird, iwr, icnt;
unsigned ord, owr, ocnt;
wait_queue_head_t open_wait;
wait_queue_head_t iwait;
wait_queue_head_t owait;
spinlock_t lock;
unsigned char ibuf[CS_MIDIINBUF];
unsigned char obuf[CS_MIDIOUTBUF];
mode_t open_mode;
struct mutex open_mutex;
} midi;
struct cs46xx_pm pm;
};
static int cs_open_mixdev(struct inode *inode, struct file *file);
static int cs_release_mixdev(struct inode *inode, struct file *file);
static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg);
static int cs_hardware_init(struct cs_card *card);
static int cs46xx_powerup(struct cs_card *card, unsigned int type);
static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag);
static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type);
#ifdef CONFIG_PM
static int cs46xx_suspend_tbl(struct pci_dev *pcidev, pm_message_t state);
static int cs46xx_resume_tbl(struct pci_dev *pcidev);
#endif
#if CSDEBUG
/* DEBUG ROUTINES */
#define SOUND_MIXER_CS_GETDBGLEVEL _SIOWR('M',120, int)
#define SOUND_MIXER_CS_SETDBGLEVEL _SIOWR('M',121, int)
#define SOUND_MIXER_CS_GETDBGMASK _SIOWR('M',122, int)
#define SOUND_MIXER_CS_SETDBGMASK _SIOWR('M',123, int)
#define SOUND_MIXER_CS_APM _SIOWR('M',124, int)
static void printioctl(unsigned int x)
{
unsigned int i;
unsigned char vidx;
/* these values are incorrect for the ac97 driver, fix.
* Index of mixtable1[] member is Device ID
* and must be <= SOUND_MIXER_NRDEVICES.
* Value of array member is index into s->mix.vol[]
*/
static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = {
[SOUND_MIXER_PCM] = 1, /* voice */
[SOUND_MIXER_LINE1] = 2, /* AUX */
[SOUND_MIXER_CD] = 3, /* CD */
[SOUND_MIXER_LINE] = 4, /* Line */
[SOUND_MIXER_SYNTH] = 5, /* FM */
[SOUND_MIXER_MIC] = 6, /* Mic */
[SOUND_MIXER_SPEAKER] = 7, /* Speaker */
[SOUND_MIXER_RECLEV] = 8, /* Recording level */
[SOUND_MIXER_VOLUME] = 9 /* Master Volume */
};
switch (x) {
case SOUND_MIXER_CS_GETDBGMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGMASK: ") );
break;
case SOUND_MIXER_CS_GETDBGLEVEL:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGLEVEL: ") );
break;
case SOUND_MIXER_CS_SETDBGMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGMASK: ") );
break;
case SOUND_MIXER_CS_SETDBGLEVEL:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGLEVEL: ") );
break;
case OSS_GETVERSION:
CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION: ") );
break;
case SNDCTL_DSP_SYNC:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC: ") );
break;
case SNDCTL_DSP_SETDUPLEX:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX: ") );
break;
case SNDCTL_DSP_GETCAPS:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS: ") );
break;
case SNDCTL_DSP_RESET:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET: ") );
break;
case SNDCTL_DSP_SPEED:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED: ") );
break;
case SNDCTL_DSP_STEREO:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO: ") );
break;
case SNDCTL_DSP_CHANNELS:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS: ") );
break;
case SNDCTL_DSP_GETFMTS:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS: ") );
break;
case SNDCTL_DSP_SETFMT:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT: ") );
break;
case SNDCTL_DSP_POST:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST: ") );
break;
case SNDCTL_DSP_GETTRIGGER:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER: ") );
break;
case SNDCTL_DSP_SETTRIGGER:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER: ") );
break;
case SNDCTL_DSP_GETOSPACE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE: ") );
break;
case SNDCTL_DSP_GETISPACE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE: ") );
break;
case SNDCTL_DSP_NONBLOCK:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK: ") );
break;
case SNDCTL_DSP_GETODELAY:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY: ") );
break;
case SNDCTL_DSP_GETIPTR:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR: ") );
break;
case SNDCTL_DSP_GETOPTR:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR: ") );
break;
case SNDCTL_DSP_GETBLKSIZE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE: ") );
break;
case SNDCTL_DSP_SETFRAGMENT:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFRAGMENT: ") );
break;
case SNDCTL_DSP_SUBDIVIDE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE: ") );
break;
case SOUND_PCM_READ_RATE:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE: ") );
break;
case SOUND_PCM_READ_CHANNELS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_CHANNELS: ") );
break;
case SOUND_PCM_READ_BITS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS: ") );
break;
case SOUND_PCM_WRITE_FILTER:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_WRITE_FILTER: ") );
break;
case SNDCTL_DSP_SETSYNCRO:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO: ") );
break;
case SOUND_PCM_READ_FILTER:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER: ") );
break;
case SOUND_MIXER_PRIVATE1:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1: ") );
break;
case SOUND_MIXER_PRIVATE2:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2: ") );
break;
case SOUND_MIXER_PRIVATE3:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3: ") );
break;
case SOUND_MIXER_PRIVATE4:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4: ") );
break;
case SOUND_MIXER_PRIVATE5:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5: ") );
break;
case SOUND_MIXER_INFO:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO: ") );
break;
case SOUND_OLD_MIXER_INFO:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO: ") );
break;
default:
switch (_IOC_NR(x)) {
case SOUND_MIXER_VOLUME:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_VOLUME: ") );
break;
case SOUND_MIXER_SPEAKER:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SPEAKER: ") );
break;
case SOUND_MIXER_RECLEV:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECLEV: ") );
break;
case SOUND_MIXER_MIC:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_MIC: ") );
break;
case SOUND_MIXER_SYNTH:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SYNTH: ") );
break;
case SOUND_MIXER_RECSRC:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECSRC: ") );
break;
case SOUND_MIXER_DEVMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_DEVMASK: ") );
break;
case SOUND_MIXER_RECMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECMASK: ") );
break;
case SOUND_MIXER_STEREODEVS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_STEREODEVS: ") );
break;
case SOUND_MIXER_CAPS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:") );
break;
default:
i = _IOC_NR(x);
if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i])) {
CS_DBGOUT(CS_IOCTL, 4, printk("UNKNOWN IOCTL: 0x%.8x NR=%d ",x,i) );
} else {
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d ",
x,i));
}
break;
}
}
CS_DBGOUT(CS_IOCTL, 4, printk("command = 0x%x IOC_NR=%d\n",x, _IOC_NR(x)) );
}
#endif
/*
* common I/O routines
*/
static void cs461x_poke(struct cs_card *codec, unsigned long reg, unsigned int val)
{
writel(val, codec->ba1.idx[(reg >> 16) & 3] + (reg & 0xffff));
}
static unsigned int cs461x_peek(struct cs_card *codec, unsigned long reg)
{
return readl(codec->ba1.idx[(reg >> 16) & 3] + (reg & 0xffff));
}
static void cs461x_pokeBA0(struct cs_card *codec, unsigned long reg, unsigned int val)
{
writel(val, codec->ba0 + reg);
}
static unsigned int cs461x_peekBA0(struct cs_card *codec, unsigned long reg)
{
return readl(codec->ba0 + reg);
}
static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg);
static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 data);
static struct cs_channel *cs_alloc_pcm_channel(struct cs_card *card)
{
if (card->channel[1].used == 1)
return NULL;
card->channel[1].used = 1;
card->channel[1].num = 1;
return &card->channel[1];
}
static struct cs_channel *cs_alloc_rec_pcm_channel(struct cs_card *card)
{
if (card->channel[0].used == 1)
return NULL;
card->channel[0].used = 1;
card->channel[0].num = 0;
return &card->channel[0];
}
static void cs_free_pcm_channel(struct cs_card *card, int channel)
{
card->channel[channel].state = NULL;
card->channel[channel].used = 0;
}
/*
* setup a divisor value to help with conversion from
* 16bit Stereo, down to 8bit stereo/mono or 16bit mono.
* assign a divisor of 1 if using 16bit Stereo as that is
* the only format that the static image will capture.
*/
static void cs_set_divisor(struct dmabuf *dmabuf)
{
if (dmabuf->type == CS_TYPE_DAC)
dmabuf->divisor = 1;
else if (!(dmabuf->fmt & CS_FMT_STEREO) &&
(dmabuf->fmt & CS_FMT_16BIT))
dmabuf->divisor = 2;
else if ((dmabuf->fmt & CS_FMT_STEREO) &&
!(dmabuf->fmt & CS_FMT_16BIT))
dmabuf->divisor = 2;
else if (!(dmabuf->fmt & CS_FMT_STEREO) &&
!(dmabuf->fmt & CS_FMT_16BIT))
dmabuf->divisor = 4;
else
dmabuf->divisor = 1;
CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8, printk(
"cs46xx: cs_set_divisor()- %s %d\n",
(dmabuf->type == CS_TYPE_ADC) ? "ADC" : "DAC",
dmabuf->divisor) );
}
/*
* mute some of the more prevalent registers to avoid popping.
*/
static void cs_mute(struct cs_card *card, int state)
{
struct ac97_codec *dev = card->ac97_codec[0];
CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()+ %s\n",
(state == CS_TRUE) ? "Muting" : "UnMuting"));
if (state == CS_TRUE) {
/*
* fix pops when powering up on thinkpads
*/
card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev,
(u8)BA0_AC97_MASTER_VOLUME);
card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_HEADPHONE_VOLUME);
card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_MASTER_VOLUME_MONO);
card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_PCM_OUT_VOLUME);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000);
} else {
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, card->pm.u32AC97_master_volume);
cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, card->pm.u32AC97_headphone_volume);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, card->pm.u32AC97_master_volume_mono);
cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, card->pm.u32AC97_pcm_out_volume);
}
CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()-\n"));
}
/* set playback sample rate */
static unsigned int cs_set_dac_rate(struct cs_state * state, unsigned int rate)
{
struct dmabuf *dmabuf = &state->dmabuf;
unsigned int tmp1, tmp2;
unsigned int phiIncr;
unsigned int correctionPerGOF, correctionPerSec;
unsigned long flags;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()+ %d\n",rate) );
/*
* Compute the values used to drive the actual sample rate conversion.
* The following formulas are being computed, using inline assembly
* since we need to use 64 bit arithmetic to compute the values:
*
* phiIncr = floor((Fs,in * 2^26) / Fs,out)
* correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
* GOF_PER_SEC)
* ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
* GOF_PER_SEC * correctionPerGOF
*
* i.e.
*
* phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
* correctionPerGOF:correctionPerSec =
* dividend:remainder(ulOther / GOF_PER_SEC)
*/
tmp1 = rate << 16;
phiIncr = tmp1 / 48000;
tmp1 -= phiIncr * 48000;
tmp1 <<= 10;
phiIncr <<= 10;
tmp2 = tmp1 / 48000;
phiIncr += tmp2;
tmp1 -= tmp2 * 48000;
correctionPerGOF = tmp1 / GOF_PER_SEC;
tmp1 -= correctionPerGOF * GOF_PER_SEC;
correctionPerSec = tmp1;
/*
* Fill in the SampleRateConverter control block.
*/
spin_lock_irqsave(&state->card->lock, flags);
cs461x_poke(state->card, BA1_PSRC,
((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
cs461x_poke(state->card, BA1_PPI, phiIncr);
spin_unlock_irqrestore(&state->card->lock, flags);
dmabuf->rate = rate;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()- %d\n",rate) );
return rate;
}
/* set recording sample rate */
static unsigned int cs_set_adc_rate(struct cs_state *state, unsigned int rate)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned int phiIncr, coeffIncr, tmp1, tmp2;
unsigned int correctionPerGOF, correctionPerSec, initialDelay;
unsigned int frameGroupLength, cnt;
unsigned long flags;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()+ %d\n",rate) );
/*
* We can only decimate by up to a factor of 1/9th the hardware rate.
* Correct the value if an attempt is made to stray outside that limit.
*/
if ((rate * 9) < 48000)
rate = 48000 / 9;
/*
* We cannot capture at at rate greater than the Input Rate (48000).
* Return an error if an attempt is made to stray outside that limit.
*/
if (rate > 48000)
rate = 48000;
/*
* Compute the values used to drive the actual sample rate conversion.
* The following formulas are being computed, using inline assembly
* since we need to use 64 bit arithmetic to compute the values:
*
* coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
* phiIncr = floor((Fs,in * 2^26) / Fs,out)
* correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
* GOF_PER_SEC)
* correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
* GOF_PER_SEC * correctionPerGOF
* initialDelay = ceil((24 * Fs,in) / Fs,out)
*
* i.e.
*
* coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
* phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
* correctionPerGOF:correctionPerSec =
* dividend:remainder(ulOther / GOF_PER_SEC)
* initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
*/
tmp1 = rate << 16;
coeffIncr = tmp1 / 48000;
tmp1 -= coeffIncr * 48000;
tmp1 <<= 7;
coeffIncr <<= 7;
coeffIncr += tmp1 / 48000;
coeffIncr ^= 0xFFFFFFFF;
coeffIncr++;
tmp1 = 48000 << 16;
phiIncr = tmp1 / rate;
tmp1 -= phiIncr * rate;
tmp1 <<= 10;
phiIncr <<= 10;
tmp2 = tmp1 / rate;
phiIncr += tmp2;
tmp1 -= tmp2 * rate;
correctionPerGOF = tmp1 / GOF_PER_SEC;
tmp1 -= correctionPerGOF * GOF_PER_SEC;
correctionPerSec = tmp1;
initialDelay = ((48000 * 24) + rate - 1) / rate;
/*
* Fill in the VariDecimate control block.
*/
spin_lock_irqsave(&card->lock, flags);
cs461x_poke(card, BA1_CSRC,
((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
cs461x_poke(card, BA1_CCI, coeffIncr);
cs461x_poke(card, BA1_CD,
(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
cs461x_poke(card, BA1_CPI, phiIncr);
spin_unlock_irqrestore(&card->lock, flags);
/*
* Figure out the frame group length for the write back task. Basically,
* this is just the factors of 24000 (2^6*3*5^3) that are not present in
* the output sample rate.
*/
frameGroupLength = 1;
for (cnt = 2; cnt <= 64; cnt *= 2) {
if (((rate / cnt) * cnt) != rate)
frameGroupLength *= 2;
}
if (((rate / 3) * 3) != rate) {
frameGroupLength *= 3;
}
for (cnt = 5; cnt <= 125; cnt *= 5) {
if (((rate / cnt) * cnt) != rate)
frameGroupLength *= 5;
}
/*
* Fill in the WriteBack control block.
*/
spin_lock_irqsave(&card->lock, flags);
cs461x_poke(card, BA1_CFG1, frameGroupLength);
cs461x_poke(card, BA1_CFG2, (0x00800000 | frameGroupLength));
cs461x_poke(card, BA1_CCST, 0x0000FFFF);
cs461x_poke(card, BA1_CSPB, ((65536 * rate) / 24000));
cs461x_poke(card, (BA1_CSPB + 4), 0x0000FFFF);
spin_unlock_irqrestore(&card->lock, flags);
dmabuf->rate = rate;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()- %d\n",rate) );
return rate;
}
/* prepare channel attributes for playback */
static void cs_play_setup(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned int tmp, Count, playFormat;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()+\n") );
cs461x_poke(card, BA1_PVOL, 0x80008000);
if (!dmabuf->SGok)
cs461x_poke(card, BA1_PBA, virt_to_bus(dmabuf->pbuf));
Count = 4;
playFormat=cs461x_peek(card, BA1_PFIE);
if ((dmabuf->fmt & CS_FMT_STEREO)) {
playFormat &= ~DMA_RQ_C2_AC_MONO_TO_STEREO;
Count *= 2;
} else
playFormat |= DMA_RQ_C2_AC_MONO_TO_STEREO;
if ((dmabuf->fmt & CS_FMT_16BIT)) {
playFormat &= ~(DMA_RQ_C2_AC_8_TO_16_BIT
| DMA_RQ_C2_AC_SIGNED_CONVERT);
Count *= 2;
} else
playFormat |= (DMA_RQ_C2_AC_8_TO_16_BIT
| DMA_RQ_C2_AC_SIGNED_CONVERT);
cs461x_poke(card, BA1_PFIE, playFormat);
tmp = cs461x_peek(card, BA1_PDTC);
tmp &= 0xfffffe00;
cs461x_poke(card, BA1_PDTC, tmp | --Count);
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()-\n") );
}
static struct InitStruct
{
u32 off;
u32 val;
} InitArray[] = { {0x00000040, 0x3fc0000f},
{0x0000004c, 0x04800000},
{0x000000b3, 0x00000780},
{0x000000b7, 0x00000000},
{0x000000bc, 0x07800000},
{0x000000cd, 0x00800000},
};
/*
* "SetCaptureSPValues()" -- Initialize record task values before each
* capture startup.
*/
static void SetCaptureSPValues(struct cs_card *card)
{
unsigned i, offset;
CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()+\n") );
for (i = 0; i < sizeof(InitArray) / sizeof(struct InitStruct); i++) {
offset = InitArray[i].off*4; /* 8bit to 32bit offset value */
cs461x_poke(card, offset, InitArray[i].val );
}
CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()-\n") );
}
/* prepare channel attributes for recording */
static void cs_rec_setup(struct cs_state *state)
{
struct cs_card *card = state->card;
struct dmabuf *dmabuf = &state->dmabuf;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()+\n"));
SetCaptureSPValues(card);
/*
* set the attenuation to 0dB
*/
cs461x_poke(card, BA1_CVOL, 0x80008000);
/*
* set the physical address of the capture buffer into the SP
*/
cs461x_poke(card, BA1_CBA, virt_to_bus(dmabuf->rawbuf));
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()-\n") );
}
/* get current playback/recording dma buffer pointer (byte offset from LBA),
called with spinlock held! */
static inline unsigned cs_get_dma_addr(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
u32 offset;
if ( (!(dmabuf->enable & DAC_RUNNING)) &&
(!(dmabuf->enable & ADC_RUNNING) ) )
{
CS_DBGOUT(CS_ERROR, 2, printk(
"cs46xx: ERROR cs_get_dma_addr(): not enabled \n") );
return 0;
}
/*
* granularity is byte boundary, good part.
*/
if (dmabuf->enable & DAC_RUNNING)
offset = cs461x_peek(state->card, BA1_PBA);
else /* ADC_RUNNING must be set */
offset = cs461x_peek(state->card, BA1_CBA);
CS_DBGOUT(CS_PARMS | CS_FUNCTION, 9,
printk("cs46xx: cs_get_dma_addr() %d\n",offset) );
offset = (u32)bus_to_virt((unsigned long)offset) - (u32)dmabuf->rawbuf;
CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8,
printk("cs46xx: cs_get_dma_addr()- %d\n",offset) );
return offset;
}
static void resync_dma_ptrs(struct cs_state *state)
{
struct dmabuf *dmabuf;