-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathtrident.c
4655 lines (4028 loc) · 123 KB
/
trident.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
/*
* OSS driver for Linux 2.[46].x for
*
* Trident 4D-Wave
* SiS 7018
* ALi 5451
* Tvia/IGST CyberPro 5050
*
* Driver: Alan Cox <alan@redhat.com>
*
* Built from:
* Low level code: <audio@tridentmicro.com> from ALSA
* Framework: Thomas Sailer <sailer@ife.ee.ethz.ch>
* Extended by: Zach Brown <zab@redhat.com>
*
* Hacked up by:
* Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
* Ollie Lho <ollie@sis.com.tw> SiS 7018 Audio Core Support
* Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support
* Matt Wu <mattwu@acersoftech.com.cn> ALi 5451 Audio Core Support
* Peter Wächtler <pwaechtler@loewe-komp.de> CyberPro5050 support
* Muli Ben-Yehuda <mulix@mulix.org>
*
*
* 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.
*
* History
* v0.14.10j
* January 3 2004 Eugene Teo <eugeneteo@eugeneteo.net>
* minor cleanup to use pr_debug instead of TRDBG since it is already
* defined in linux/kernel.h.
* v0.14.10i
* December 29 2003 Muli Ben-Yehuda <mulix@mulix.org>
* major cleanup for 2.6, fix a few error patch buglets
* with returning without properly cleaning up first,
* get rid of lock_kernel().
* v0.14.10h
* Sept 10 2002 Pascal Schmidt <der.eremit@email.de>
* added support for ALi 5451 joystick port
* v0.14.10g
* Sept 05 2002 Alan Cox <alan@redhat.com>
* adapt to new pci joystick attachment interface
* v0.14.10f
* July 24 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
* patch from Eric Lemar (via Ian Soboroff): in suspend and resume,
* fix wrong cast from pci_dev* to struct trident_card*.
* v0.14.10e
* July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
* rewrite the DMA buffer allocation/deallcoation functions, to make it
* modular and fix a bug where we would call free_pages on memory
* obtained with pci_alloc_consistent. Also remove unnecessary #ifdef
* CONFIG_PROC_FS and various other cleanups.
* v0.14.10d
* July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
* made several printk(KERN_NOTICE...) into TRDBG(...), to avoid spamming
* my syslog with hundreds of messages.
* v0.14.10c
* July 16 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
* Cleaned up Lei Hu's 0.4.10 driver to conform to Documentation/CodingStyle
* and the coding style used in the rest of the file.
* v0.14.10b
* June 23 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
* add a missing unlock_set_fmt, remove a superflous lock/unlock pair
* with nothing in between.
* v0.14.10a
* June 21 2002 Muli Ben-Yehuda <mulix@actcom.co.il>
* use a debug macro instead of #ifdef CONFIG_DEBUG, trim to 80 columns
* per line, use 'do {} while (0)' in statement macros.
* v0.14.10
* June 6 2002 Lei Hu <Lei_hu@ali.com.tw>
* rewrite the part to read/write registers of audio codec for Ali5451
* v0.14.9e
* January 2 2002 Vojtech Pavlik <vojtech@ucw.cz> added gameport
* support to avoid resource conflict with pcigame.c
* v0.14.9d
* October 8 2001 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
* use set_current_state, properly release resources on failure in
* trident_probe, get rid of check_region
* v0.14.9c
* August 10 2001 Peter Wächtler <pwaechtler@loewe-komp.de>
* added support for Tvia (formerly Integraphics/IGST) CyberPro5050
* this chip is often found in settop boxes (combined video+audio)
* v0.14.9b
* Switch to static inline not extern inline (gcc 3)
* v0.14.9a
* Aug 6 2001 Alan Cox
* 0.14.9 crashed on rmmod due to a timer/bh left running. Simplified
* the existing logic (the BH doesn't help as ac97 is lock_irqsave)
* and used del_timer_sync to clean up
* Fixed a problem where the ALi change broke my generic card
* v0.14.9
* Jul 10 2001 Matt Wu
* Add H/W Volume Control
* v0.14.8a
* July 7 2001 Alan Cox
* Moved Matt Wu's ac97 register cache into the card structure
* v0.14.8
* Apr 30 2001 Matt Wu
* Set EBUF1 and EBUF2 to still mode
* Add dc97/ac97 reset function
* Fix power management: ali_restore_regs
* unreleased
* Mar 09 2001 Matt Wu
* Add cache for ac97 access
* v0.14.7
* Feb 06 2001 Matt Wu
* Fix ac97 initialization
* Fix bug: an extra tail will be played when playing
* Jan 05 2001 Matt Wu
* Implement multi-channels and S/PDIF in support for ALi 1535+
* v0.14.6
* Nov 1 2000 Ching-Ling Lee
* Fix the bug of memory leak when switching 5.1-channels to 2 channels.
* Add lock protection into dynamic changing format of data.
* Oct 18 2000 Ching-Ling Lee
* 5.1-channels support for ALi
* June 28 2000 Ching-Ling Lee
* S/PDIF out/in(playback/record) support for ALi 1535+, using /proc to be selected by user
* Simple Power Management support for ALi
* v0.14.5 May 23 2000 Ollie Lho
* Misc bug fix from the Net
* v0.14.4 May 20 2000 Aaron Holtzman
* Fix kfree'd memory access in release
* Fix race in open while looking for a free virtual channel slot
* remove open_wait wq (which appears to be unused)
* v0.14.3 May 10 2000 Ollie Lho
* fixed a small bug in trident_update_ptr, xmms 1.0.1 no longer uses 100% CPU
* v0.14.2 Mar 29 2000 Ching-Ling Lee
* Add clear to silence advance in trident_update_ptr
* fix invalid data of the end of the sound
* v0.14.1 Mar 24 2000 Ching-Ling Lee
* ALi 5451 support added, playback and recording O.K.
* ALi 5451 originally developed and structured based on sonicvibes, and
* suggested to merge into this file by Alan Cox.
* v0.14 Mar 15 2000 Ollie Lho
* 5.1 channel output support with channel binding. What's the Matrix ?
* v0.13.1 Mar 10 2000 Ollie Lho
* few minor bugs on dual codec support, needs more testing
* v0.13 Mar 03 2000 Ollie Lho
* new pci_* for 2.4 kernel, back ported to 2.2
* v0.12 Feb 23 2000 Ollie Lho
* Preliminary Recording support
* v0.11.2 Feb 19 2000 Ollie Lho
* removed incomplete full-dulplex support
* v0.11.1 Jan 28 2000 Ollie Lho
* small bug in setting sample rate for 4d-nx (reported by Aaron)
* v0.11 Jan 27 2000 Ollie Lho
* DMA bug, scheduler latency, second try
* v0.10 Jan 24 2000 Ollie Lho
* DMA bug fixed, found kernel scheduling problem
* v0.09 Jan 20 2000 Ollie Lho
* Clean up of channel register access routine (prepare for channel binding)
* v0.08 Jan 14 2000 Ollie Lho
* Isolation of AC97 codec code
* v0.07 Jan 13 2000 Ollie Lho
* Get rid of ugly old low level access routines (e.g. CHRegs.lp****)
* v0.06 Jan 11 2000 Ollie Lho
* Preliminary support for dual (more ?) AC97 codecs
* v0.05 Jan 08 2000 Luca Montecchiani <m.luca@iname.com>
* adapt to 2.3.x new __setup/__init call
* v0.04 Dec 31 1999 Ollie Lho
* Multiple Open, using Middle Loop Interrupt to smooth playback
* v0.03 Dec 24 1999 Ollie Lho
* mem leak in prog_dmabuf and dealloc_dmabuf removed
* v0.02 Dec 15 1999 Ollie Lho
* SiS 7018 support added, playback O.K.
* v0.01 Alan Cox et. al.
* Initial Release in kernel 2.3.30, does not work
*
* ToDo
* Clean up of low level channel register access code. (done)
* Fix the bug on dma buffer management in update_ptr, read/write, drain_dac (done)
* Dual AC97 codecs support (done)
* Recording support (done)
* Mmap support
* "Channel Binding" ioctl extension (done)
* new pci device driver interface for 2.4 kernel (done)
*
* Lock order (high->low)
* lock - hardware lock
* open_mutex - guard opens
* sem - guard dmabuf, write re-entry etc
*/
#include <linux/module.h>
#include <linux/string.h>
#include <linux/ctype.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/init.h>
#include <linux/poll.h>
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
#include <linux/bitops.h>
#include <linux/proc_fs.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
#include <linux/gameport.h>
#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/mm.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/dma.h>
#if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC)
#include <asm/hwrpb.h>
#endif
#include "trident.h"
#define DRIVER_VERSION "0.14.10j-2.6"
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
#define SUPPORT_JOYSTICK 1
#endif
/* magic numbers to protect our data structures */
#define TRIDENT_CARD_MAGIC 0x5072696E /* "Prin" */
#define TRIDENT_STATE_MAGIC 0x63657373 /* "cess" */
#define TRIDENT_DMA_MASK 0x3fffffff /* DMA buffer mask for pci_alloc_consist */
#define ALI_DMA_MASK 0x7fffffff /* ALI Tridents have 31-bit DMA. Wow. */
#define NR_HW_CH 32
/* maximum number of AC97 codecs connected, AC97 2.0 defined 4, but 7018 and 4D-NX only
have 2 SDATA_IN lines (currently) */
#define NR_AC97 2
/* minor number of /dev/swmodem (temporary, experimental) */
#define SND_DEV_SWMODEM 7
static const unsigned ali_multi_channels_5_1[] = {
/*ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL, */
ALI_CENTER_CHANNEL,
ALI_LEF_CHANNEL,
ALI_SURR_LEFT_CHANNEL,
ALI_SURR_RIGHT_CHANNEL
};
static const unsigned sample_size[] = { 1, 2, 2, 4 };
static const unsigned sample_shift[] = { 0, 1, 1, 2 };
static const char invalid_magic[] = KERN_CRIT "trident: invalid magic value in %s\n";
enum {
TRIDENT_4D_DX = 0,
TRIDENT_4D_NX,
SIS_7018,
ALI_5451,
CYBER5050
};
static char *card_names[] = {
"Trident 4DWave DX",
"Trident 4DWave NX",
"SiS 7018 PCI Audio",
"ALi Audio Accelerator",
"Tvia/IGST CyberPro 5050"
};
static struct pci_device_id trident_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_DX),
PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, TRIDENT_4D_DX},
{PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_NX),
0, 0, TRIDENT_4D_NX},
{PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7018), 0, 0, SIS_7018},
{PCI_DEVICE(PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5451), 0, 0, ALI_5451},
{PCI_DEVICE(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5050),
0, 0, CYBER5050},
{0,}
};
MODULE_DEVICE_TABLE(pci, trident_pci_tbl);
/* "software" or virtual channel, an instance of opened /dev/dsp */
struct trident_state {
unsigned int magic;
struct trident_card *card; /* Card info */
/* 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 trident_channel *channel;
/* OSS buffer management stuff */
void *rawbuf;
dma_addr_t dma_handle;
unsigned buforder;
unsigned numfrag;
unsigned fragshift;
/* 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 error; /* number of over/underruns */
/* put process on wait queue when no more space in buffer */
wait_queue_head_t wait;
/* redundant, but makes calculations easier */
unsigned fragsize;
unsigned dmasize;
unsigned fragsamples;
/* OSS stuff */
unsigned mapped:1;
unsigned ready:1;
unsigned endcleared:1;
unsigned update_flag;
unsigned ossfragshift;
int ossmaxfrags;
unsigned subdivision;
} dmabuf;
/* 5.1 channels */
struct trident_state *other_states[4];
int multi_channels_adjust_count;
unsigned chans_num;
unsigned long fmt_flag;
/* Guard against mmap/write/read races */
struct mutex sem;
};
/* hardware channels */
struct trident_channel {
int num; /* channel number */
u32 lba; /* Loop Begine Address, where dma buffer starts */
u32 eso; /* End Sample Offset, wehre dma buffer ends */
/* (in the unit of samples) */
u32 delta; /* delta value, sample rate / 48k for playback, */
/* 48k/sample rate for recording */
u16 attribute; /* control where PCM data go and come */
u16 fm_vol;
u32 control; /* signed/unsigned, 8/16 bits, mono/stereo */
};
struct trident_pcm_bank_address {
u32 start;
u32 stop;
u32 aint;
u32 aint_en;
};
static struct trident_pcm_bank_address bank_a_addrs = {
T4D_START_A,
T4D_STOP_A,
T4D_AINT_A,
T4D_AINTEN_A
};
static struct trident_pcm_bank_address bank_b_addrs = {
T4D_START_B,
T4D_STOP_B,
T4D_AINT_B,
T4D_AINTEN_B
};
struct trident_pcm_bank {
/* register addresses to control bank operations */
struct trident_pcm_bank_address *addresses;
/* each bank has 32 channels */
u32 bitmap; /* channel allocation bitmap */
struct trident_channel channels[32];
};
struct trident_card {
unsigned int magic;
/* We keep trident cards in a linked list */
struct trident_card *next;
/* single open lock mechanism, only used for recording */
struct mutex open_mutex;
/* The trident has a certain amount of cross channel interaction
so we use a single per card lock */
spinlock_t lock;
/* PCI device stuff */
struct pci_dev *pci_dev;
u16 pci_id;
u8 revision;
/* soundcore stuff */
int dev_audio;
/* structures for abstraction of hardware facilities, codecs, */
/* banks and channels */
struct ac97_codec *ac97_codec[NR_AC97];
struct trident_pcm_bank banks[NR_BANKS];
struct trident_state *states[NR_HW_CH];
/* hardware resources */
unsigned long iobase;
u32 irq;
/* Function support */
struct trident_channel *(*alloc_pcm_channel) (struct trident_card *);
struct trident_channel *(*alloc_rec_pcm_channel) (struct trident_card *);
void (*free_pcm_channel) (struct trident_card *, unsigned int chan);
void (*address_interrupt) (struct trident_card *);
/* Added by Matt Wu 01-05-2001 for spdif in */
int multi_channel_use_count;
int rec_channel_use_count;
u16 mixer_regs[64][NR_AC97]; /* Made card local by Alan */
int mixer_regs_ready;
/* Added for hardware volume control */
int hwvolctl;
struct timer_list timer;
/* Game port support */
struct gameport *gameport;
};
enum dmabuf_mode {
DM_PLAYBACK = 0,
DM_RECORD
};
/* table to map from CHANNELMASK to channel attribute for SiS 7018 */
static u16 mask2attr[] = {
PCM_LR, PCM_LR, SURR_LR, CENTER_LFE,
HSET, MIC, MODEM_LINE1, MODEM_LINE2,
I2S_LR, SPDIF_LR
};
/* table to map from channel attribute to CHANNELMASK for SiS 7018 */
static int attr2mask[] = {
DSP_BIND_MODEM1, DSP_BIND_MODEM2, DSP_BIND_FRONT, DSP_BIND_HANDSET,
DSP_BIND_I2S, DSP_BIND_CENTER_LFE, DSP_BIND_SURR, DSP_BIND_SPDIF
};
/* Added by Matt Wu 01-05-2001 for spdif in */
static int ali_close_multi_channels(void);
static void ali_delay(struct trident_card *card, int interval);
static void ali_detect_spdif_rate(struct trident_card *card);
static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val);
static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg);
static struct trident_card *devs;
static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val);
static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg);
static int trident_open_mixdev(struct inode *inode, struct file *file);
static int trident_ioctl_mixdev(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg);
static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val);
static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg);
static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate);
static void ali_enable_special_channel(struct trident_state *stat);
static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card);
static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card);
static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel);
static int ali_setup_multi_channels(struct trident_card *card, int chan_nums);
static unsigned int ali_get_spdif_in_rate(struct trident_card *card);
static void ali_setup_spdif_in(struct trident_card *card);
static void ali_disable_spdif_in(struct trident_card *card);
static void ali_disable_special_channel(struct trident_card *card, int ch);
static void ali_setup_spdif_out(struct trident_card *card, int flag);
static int ali_write_5_1(struct trident_state *state,
const char __user *buffer,
int cnt_for_multi_channel, unsigned int *copy_count,
unsigned int *state_cnt);
static int ali_allocate_other_states_resources(struct trident_state *state,
int chan_nums);
static void ali_free_other_states_resources(struct trident_state *state);
#define seek_offset(dma_ptr, buffer, cnt, offset, copy_count) do { \
(dma_ptr) += (offset); \
(buffer) += (offset); \
(cnt) -= (offset); \
(copy_count) += (offset); \
} while (0)
static inline int lock_set_fmt(struct trident_state* state)
{
if (test_and_set_bit(0, &state->fmt_flag))
return -EFAULT;
return 0;
}
static inline void unlock_set_fmt(struct trident_state* state)
{
clear_bit(0, &state->fmt_flag);
}
static int
trident_enable_loop_interrupts(struct trident_card *card)
{
u32 global_control;
global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
switch (card->pci_id) {
case PCI_DEVICE_ID_SI_7018:
global_control |= (ENDLP_IE | MIDLP_IE | BANK_B_EN);
break;
case PCI_DEVICE_ID_ALI_5451:
case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
case PCI_DEVICE_ID_INTERG_5050:
global_control |= (ENDLP_IE | MIDLP_IE);
break;
default:
return 0;
}
outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
pr_debug("trident: Enable Loop Interrupts, globctl = 0x%08X\n",
inl(TRID_REG(card, T4D_LFO_GC_CIR)));
return 1;
}
static int
trident_disable_loop_interrupts(struct trident_card *card)
{
u32 global_control;
global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR));
global_control &= ~(ENDLP_IE | MIDLP_IE);
outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR));
pr_debug("trident: Disabled Loop Interrupts, globctl = 0x%08X\n",
global_control);
return 1;
}
static void
trident_enable_voice_irq(struct trident_card *card, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
struct trident_pcm_bank *bank = &card->banks[channel >> 5];
u32 reg, addr = bank->addresses->aint_en;
reg = inl(TRID_REG(card, addr));
reg |= mask;
outl(reg, TRID_REG(card, addr));
#ifdef DEBUG
reg = inl(TRID_REG(card, addr));
pr_debug("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
reg, addr);
#endif /* DEBUG */
}
static void
trident_disable_voice_irq(struct trident_card *card, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
struct trident_pcm_bank *bank = &card->banks[channel >> 5];
u32 reg, addr = bank->addresses->aint_en;
reg = inl(TRID_REG(card, addr));
reg &= ~mask;
outl(reg, TRID_REG(card, addr));
/* Ack the channel in case the interrupt was set before we disable it. */
outl(mask, TRID_REG(card, bank->addresses->aint));
#ifdef DEBUG
reg = inl(TRID_REG(card, addr));
pr_debug("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n",
channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A",
reg, addr);
#endif /* DEBUG */
}
static void
trident_start_voice(struct trident_card *card, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
struct trident_pcm_bank *bank = &card->banks[channel >> 5];
u32 addr = bank->addresses->start;
#ifdef DEBUG
u32 reg;
#endif /* DEBUG */
outl(mask, TRID_REG(card, addr));
#ifdef DEBUG
reg = inl(TRID_REG(card, addr));
pr_debug("trident: start voice on channel %d, %s = 0x%08x(addr:%X)\n",
channel, addr == T4D_START_B ? "START_B" : "START_A",
reg, addr);
#endif /* DEBUG */
}
static void
trident_stop_voice(struct trident_card *card, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
struct trident_pcm_bank *bank = &card->banks[channel >> 5];
u32 addr = bank->addresses->stop;
#ifdef DEBUG
u32 reg;
#endif /* DEBUG */
outl(mask, TRID_REG(card, addr));
#ifdef DEBUG
reg = inl(TRID_REG(card, addr));
pr_debug("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)\n",
channel, addr == T4D_STOP_B ? "STOP_B" : "STOP_A",
reg, addr);
#endif /* DEBUG */
}
static u32
trident_get_interrupt_mask(struct trident_card *card, unsigned int channel)
{
struct trident_pcm_bank *bank = &card->banks[channel];
u32 addr = bank->addresses->aint;
return inl(TRID_REG(card, addr));
}
static int
trident_check_channel_interrupt(struct trident_card *card, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
u32 reg = trident_get_interrupt_mask(card, channel >> 5);
#ifdef DEBUG
if (reg & mask)
pr_debug("trident: channel %d has interrupt, %s = 0x%08x\n",
channel, reg == T4D_AINT_B ? "AINT_B" : "AINT_A",
reg);
#endif /* DEBUG */
return (reg & mask) ? 1 : 0;
}
static void
trident_ack_channel_interrupt(struct trident_card *card, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
struct trident_pcm_bank *bank = &card->banks[channel >> 5];
u32 reg, addr = bank->addresses->aint;
reg = inl(TRID_REG(card, addr));
reg &= mask;
outl(reg, TRID_REG(card, addr));
#ifdef DEBUG
reg = inl(TRID_REG(card, T4D_AINT_B));
pr_debug("trident: Ack channel %d interrupt, AINT_B = 0x%08x\n",
channel, reg);
#endif /* DEBUG */
}
static struct trident_channel *
trident_alloc_pcm_channel(struct trident_card *card)
{
struct trident_pcm_bank *bank;
int idx;
bank = &card->banks[BANK_B];
for (idx = 31; idx >= 0; idx--) {
if (!(bank->bitmap & (1 << idx))) {
struct trident_channel *channel = &bank->channels[idx];
bank->bitmap |= 1 << idx;
channel->num = idx + 32;
return channel;
}
}
/* no more free channels available */
printk(KERN_ERR "trident: no more channels available on Bank B.\n");
return NULL;
}
static void
trident_free_pcm_channel(struct trident_card *card, unsigned int channel)
{
int bank;
unsigned char b;
if (channel < 31 || channel > 63)
return;
if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX ||
card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) {
b = inb(TRID_REG(card, T4D_REC_CH));
if ((b & ~0x80) == channel)
outb(0x0, TRID_REG(card, T4D_REC_CH));
}
bank = channel >> 5;
channel = channel & 0x1f;
card->banks[bank].bitmap &= ~(1 << (channel));
}
static struct trident_channel *
cyber_alloc_pcm_channel(struct trident_card *card)
{
struct trident_pcm_bank *bank;
int idx;
/* The cyberpro 5050 has only 32 voices and one bank */
/* .. at least they are not documented (if you want to call that
* crap documentation), perhaps broken ? */
bank = &card->banks[BANK_A];
for (idx = 31; idx >= 0; idx--) {
if (!(bank->bitmap & (1 << idx))) {
struct trident_channel *channel = &bank->channels[idx];
bank->bitmap |= 1 << idx;
channel->num = idx;
return channel;
}
}
/* no more free channels available */
printk(KERN_ERR "cyberpro5050: no more channels available on Bank A.\n");
return NULL;
}
static void
cyber_free_pcm_channel(struct trident_card *card, unsigned int channel)
{
if (channel > 31)
return;
card->banks[BANK_A].bitmap &= ~(1 << (channel));
}
static inline void
cyber_outidx(int port, int idx, int data)
{
outb(idx, port);
outb(data, port + 1);
}
static inline int
cyber_inidx(int port, int idx)
{
outb(idx, port);
return inb(port + 1);
}
static int
cyber_init_ritual(struct trident_card *card)
{
/* some black magic, taken from SDK samples */
/* remove this and nothing will work */
int portDat;
int ret = 0;
unsigned long flags;
/*
* Keep interrupts off for the configure - we don't want to
* clash with another cyberpro config event
*/
spin_lock_irqsave(&card->lock, flags);
portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
/* enable, if it was disabled */
if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
printk(KERN_INFO "cyberpro5050: enabling audio controller\n");
cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE,
portDat | CYBER_BMSK_AUENZ_ENABLE);
/* check again if hardware is enabled now */
portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE);
}
if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) {
printk(KERN_ERR "cyberpro5050: initAudioAccess: no success\n");
ret = -1;
} else {
cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE,
CYBER_BMSK_AUDIO_INT_ENABLE);
cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x01);
cyber_outidx(CYBER_PORT_AUDIO, 0xba, 0x20);
cyber_outidx(CYBER_PORT_AUDIO, 0xbb, 0x08);
cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x02);
cyber_outidx(CYBER_PORT_AUDIO, 0xb3, 0x06);
cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x00);
}
spin_unlock_irqrestore(&card->lock, flags);
return ret;
}
/* called with spin lock held */
static int
trident_load_channel_registers(struct trident_card *card, u32 * data,
unsigned int channel)
{
int i;
if (channel > 63)
return 0;
/* select hardware channel to write */
outb(channel, TRID_REG(card, T4D_LFO_GC_CIR));
/* Output the channel registers, but don't write register
three to an ALI chip. */
for (i = 0; i < CHANNEL_REGS; i++) {
if (i == 3 && card->pci_id == PCI_DEVICE_ID_ALI_5451)
continue;
outl(data[i], TRID_REG(card, CHANNEL_START + 4 * i));
}
if (card->pci_id == PCI_DEVICE_ID_ALI_5451 ||
card->pci_id == PCI_DEVICE_ID_INTERG_5050) {
outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1));
outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2));
}
return 1;
}
/* called with spin lock held */
static int
trident_write_voice_regs(struct trident_state *state)
{
unsigned int data[CHANNEL_REGS + 1];
struct trident_channel *channel;
channel = state->dmabuf.channel;
data[1] = channel->lba;
data[4] = channel->control;
switch (state->card->pci_id) {
case PCI_DEVICE_ID_ALI_5451:
data[0] = 0; /* Current Sample Offset */
data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
data[3] = 0;
break;
case PCI_DEVICE_ID_SI_7018:
case PCI_DEVICE_ID_INTERG_5050:
data[0] = 0; /* Current Sample Offset */
data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
data[3] = (channel->attribute << 16) | (channel->fm_vol & 0xffff);
break;
case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX:
data[0] = 0; /* Current Sample Offset */
data[2] = (channel->eso << 16) | (channel->delta & 0xffff);
data[3] = channel->fm_vol & 0xffff;
break;
case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX:
data[0] = (channel->delta << 24);
data[2] = ((channel->delta << 16) & 0xff000000) |
(channel->eso & 0x00ffffff);
data[3] = channel->fm_vol & 0xffff;
break;
default:
return 0;
}
return trident_load_channel_registers(state->card, data, channel->num);
}
static int
compute_rate_play(u32 rate)
{
int delta;
/* We special case 44100 and 8000 since rounding with the equation
does not give us an accurate enough value. For 11025 and 22050
the equation gives us the best answer. All other frequencies will
also use the equation. JDW */
if (rate == 44100)
delta = 0xeb3;
else if (rate == 8000)
delta = 0x2ab;
else if (rate == 48000)
delta = 0x1000;
else
delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
return delta;
}
static int
compute_rate_rec(u32 rate)
{
int delta;
if (rate == 44100)
delta = 0x116a;
else if (rate == 8000)
delta = 0x6000;
else if (rate == 48000)
delta = 0x1000;
else
delta = ((48000 << 12) / rate) & 0x0000ffff;
return delta;
}
/* set playback sample rate */
static unsigned int
trident_set_dac_rate(struct trident_state *state, unsigned int rate)
{
struct dmabuf *dmabuf = &state->dmabuf;
if (rate > 48000)
rate = 48000;
if (rate < 4000)
rate = 4000;
dmabuf->rate = rate;
dmabuf->channel->delta = compute_rate_play(rate);
trident_write_voice_regs(state);
pr_debug("trident: called trident_set_dac_rate : rate = %d\n", rate);
return rate;
}
/* set recording sample rate */
static unsigned int
trident_set_adc_rate(struct trident_state *state, unsigned int rate)
{
struct dmabuf *dmabuf = &state->dmabuf;
if (rate > 48000)
rate = 48000;
if (rate < 4000)
rate = 4000;
dmabuf->rate = rate;
dmabuf->channel->delta = compute_rate_rec(rate);
trident_write_voice_regs(state);
pr_debug("trident: called trident_set_adc_rate : rate = %d\n", rate);
return rate;
}
/* prepare channel attributes for playback */
static void
trident_play_setup(struct trident_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct trident_channel *channel = dmabuf->channel;
channel->lba = dmabuf->dma_handle;
channel->delta = compute_rate_play(dmabuf->rate);
channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt];
channel->eso -= 1;
if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) {
channel->attribute = 0;
if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) {
if ((channel->num == ALI_SPDIF_IN_CHANNEL) ||
(channel->num == ALI_PCM_IN_CHANNEL))
ali_disable_special_channel(state->card, channel->num);
else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL))
& ALI_SPDIF_OUT_CH_ENABLE)
&& (channel->num == ALI_SPDIF_OUT_CHANNEL)) {
ali_set_spdif_out_rate(state->card,
state->dmabuf.rate);