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
|
/*
**********************************************************************
* 8010.h
* Copyright 1999-2001 Creative Labs, Inc.
*
**********************************************************************
*
* Date Author Summary of changes
* ---- ------ ------------------
* October 20, 1999 Bertrand Lee base code release
* November 2, 1999 Alan Cox Cleaned of 8bit chars, DOS
* line endings
* December 8, 1999 Jon Taylor Added lots of new register info
* May 16, 2001 Daniel Bertrand Added unofficial DBG register info
* Oct-Nov 2001 D.B. Added unofficial Audigy registers
*
**********************************************************************
*
* 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.
*
*
**********************************************************************
*/
#ifndef _8010_H
#define _8010_H
#include <linux/types.h>
// Driver version:
#define MAJOR_VER 0
#define MINOR_VER 20
#define DRIVER_VERSION "0.20a"
// Audigy specify registers are prefixed with 'A_'
/************************************************************************************************/
/* PCI function 0 registers, address = <val> + PCIBASE0 */
/************************************************************************************************/
#define PTR 0x00 /* Indexed register set pointer register */
/* NOTE: The CHANNELNUM and ADDRESS words can */
/* be modified independently of each other. */
#define PTR_CHANNELNUM_MASK 0x0000003f /* For each per-channel register, indicates the */
/* channel number of the register to be */
/* accessed. For non per-channel registers the */
/* value should be set to zero. */
#define PTR_ADDRESS_MASK 0x07ff0000 /* Register index */
#define DATA 0x04 /* Indexed register set data register */
#define IPR 0x08 /* Global interrupt pending register */
/* Clear pending interrupts by writing a 1 to */
/* the relevant bits and zero to the other bits */
/* The next two interrupts are for the midi port on the Audigy Drive (A_MPU1) */
#define A_IPR_MIDITRANSBUFEMPTY2 0x10000000 /* MIDI UART transmit buffer empty */
#define A_IPR_MIDIRECVBUFEMPTY2 0x08000000 /* MIDI UART receive buffer empty */
#define IPR_SAMPLERATETRACKER 0x01000000 /* Sample rate tracker lock status change */
#define IPR_FXDSP 0x00800000 /* Enable FX DSP interrupts */
#define IPR_FORCEINT 0x00400000 /* Force Sound Blaster interrupt */
#define IPR_PCIERROR 0x00200000 /* PCI bus error */
#define IPR_VOLINCR 0x00100000 /* Volume increment button pressed */
#define IPR_VOLDECR 0x00080000 /* Volume decrement button pressed */
#define IPR_MUTE 0x00040000 /* Mute button pressed */
#define IPR_MICBUFFULL 0x00020000 /* Microphone buffer full */
#define IPR_MICBUFHALFFULL 0x00010000 /* Microphone buffer half full */
#define IPR_ADCBUFFULL 0x00008000 /* ADC buffer full */
#define IPR_ADCBUFHALFFULL 0x00004000 /* ADC buffer half full */
#define IPR_EFXBUFFULL 0x00002000 /* Effects buffer full */
#define IPR_EFXBUFHALFFULL 0x00001000 /* Effects buffer half full */
#define IPR_GPSPDIFSTATUSCHANGE 0x00000800 /* GPSPDIF channel status change */
#define IPR_CDROMSTATUSCHANGE 0x00000400 /* CD-ROM channel status change */
#define IPR_INTERVALTIMER 0x00000200 /* Interval timer terminal count */
#define IPR_MIDITRANSBUFEMPTY 0x00000100 /* MIDI UART transmit buffer empty */
#define IPR_MIDIRECVBUFEMPTY 0x00000080 /* MIDI UART receive buffer empty */
#define IPR_CHANNELLOOP 0x00000040 /* One or more channel loop interrupts pending */
#define IPR_CHANNELNUMBERMASK 0x0000003f /* When IPR_CHANNELLOOP is set, indicates the */
/* Highest set channel in CLIPL or CLIPH. When */
/* IP is written with CL set, the bit in CLIPL */
/* or CLIPH corresponding to the CIN value */
/* written will be cleared. */
#define A_IPR_MIDITRANSBUFEMPTY1 IPR_MIDITRANSBUFEMPTY /* MIDI UART transmit buffer empty */
#define A_IPR_MIDIRECVBUFEMPTY1 IPR_MIDIRECVBUFEMPTY /* MIDI UART receive buffer empty */
#define INTE 0x0c /* Interrupt enable register */
#define INTE_VIRTUALSB_MASK 0xc0000000 /* Virtual Soundblaster I/O port capture */
#define INTE_VIRTUALSB_220 0x00000000 /* Capture at I/O base address 0x220-0x22f */
#define INTE_VIRTUALSB_240 0x40000000 /* Capture at I/O base address 0x240 */
#define INTE_VIRTUALSB_260 0x80000000 /* Capture at I/O base address 0x260 */
#define INTE_VIRTUALSB_280 0xc0000000 /* Capture at I/O base address 0x280 */
#define INTE_VIRTUALMPU_MASK 0x30000000 /* Virtual MPU I/O port capture */
#define INTE_VIRTUALMPU_300 0x00000000 /* Capture at I/O base address 0x300-0x301 */
#define INTE_VIRTUALMPU_310 0x10000000 /* Capture at I/O base address 0x310 */
#define INTE_VIRTUALMPU_320 0x20000000 /* Capture at I/O base address 0x320 */
#define INTE_VIRTUALMPU_330 0x30000000 /* Capture at I/O base address 0x330 */
#define INTE_MASTERDMAENABLE 0x08000000 /* Master DMA emulation at 0x000-0x00f */
#define INTE_SLAVEDMAENABLE 0x04000000 /* Slave DMA emulation at 0x0c0-0x0df */
#define INTE_MASTERPICENABLE 0x02000000 /* Master PIC emulation at 0x020-0x021 */
#define INTE_SLAVEPICENABLE 0x01000000 /* Slave PIC emulation at 0x0a0-0x0a1 */
#define INTE_VSBENABLE 0x00800000 /* Enable virtual Soundblaster */
#define INTE_ADLIBENABLE 0x00400000 /* Enable AdLib emulation at 0x388-0x38b */
#define INTE_MPUENABLE 0x00200000 /* Enable virtual MPU */
#define INTE_FORCEINT 0x00100000 /* Continuously assert INTAN */
#define INTE_MRHANDENABLE 0x00080000 /* Enable the "Mr. Hand" logic */
/* NOTE: There is no reason to use this under */
/* Linux, and it will cause odd hardware */
/* behavior and possibly random segfaults and */
/* lockups if enabled. */
/* The next two interrupts are for the midi port on the Audigy Drive (A_MPU1) */
#define A_INTE_MIDITXENABLE2 0x00020000 /* Enable MIDI transmit-buffer-empty interrupts */
#define A_INTE_MIDIRXENABLE2 0x00010000 /* Enable MIDI receive-buffer-empty interrupts */
#define INTE_SAMPLERATETRACKER 0x00002000 /* Enable sample rate tracker interrupts */
/* NOTE: This bit must always be enabled */
#define INTE_FXDSPENABLE 0x00001000 /* Enable FX DSP interrupts */
#define INTE_PCIERRORENABLE 0x00000800 /* Enable PCI bus error interrupts */
#define INTE_VOLINCRENABLE 0x00000400 /* Enable volume increment button interrupts */
#define INTE_VOLDECRENABLE 0x00000200 /* Enable volume decrement button interrupts */
#define INTE_MUTEENABLE 0x00000100 /* Enable mute button interrupts */
#define INTE_MICBUFENABLE 0x00000080 /* Enable microphone buffer interrupts */
#define INTE_ADCBUFENABLE 0x00000040 /* Enable ADC buffer interrupts */
#define INTE_EFXBUFENABLE 0x00000020 /* Enable Effects buffer interrupts */
#define INTE_GPSPDIFENABLE 0x00000010 /* Enable GPSPDIF status interrupts */
#define INTE_CDSPDIFENABLE 0x00000008 /* Enable CDSPDIF status interrupts */
#define INTE_INTERVALTIMERENB 0x00000004 /* Enable interval timer interrupts */
#define INTE_MIDITXENABLE 0x00000002 /* Enable MIDI transmit-buffer-empty interrupts */
#define INTE_MIDIRXENABLE 0x00000001 /* Enable MIDI receive-buffer-empty interrupts */
/* The next two interrupts are for the midi port on the Audigy (A_MPU2) */
#define A_INTE_MIDITXENABLE1 INTE_MIDITXENABLE
#define A_INTE_MIDIRXENABLE1 INTE_MIDIRXENABLE
#define WC 0x10 /* Wall Clock register */
#define WC_SAMPLECOUNTER_MASK 0x03FFFFC0 /* Sample periods elapsed since reset */
#define WC_SAMPLECOUNTER 0x14060010
#define WC_CURRENTCHANNEL 0x0000003F /* Channel [0..63] currently being serviced */
/* NOTE: Each channel takes 1/64th of a sample */
/* period to be serviced. */
#define HCFG 0x14 /* Hardware config register */
/* NOTE: There is no reason to use the legacy */
/* SoundBlaster emulation stuff described below */
/* under Linux, and all kinds of weird hardware */
/* behavior can result if you try. Don't. */
#define HCFG_LEGACYFUNC_MASK 0xe0000000 /* Legacy function number */
#define HCFG_LEGACYFUNC_MPU 0x00000000 /* Legacy MPU */
#define HCFG_LEGACYFUNC_SB 0x40000000 /* Legacy SB */
#define HCFG_LEGACYFUNC_AD 0x60000000 /* Legacy AD */
#define HCFG_LEGACYFUNC_MPIC 0x80000000 /* Legacy MPIC */
#define HCFG_LEGACYFUNC_MDMA 0xa0000000 /* Legacy MDMA */
#define HCFG_LEGACYFUNC_SPCI 0xc0000000 /* Legacy SPCI */
#define HCFG_LEGACYFUNC_SDMA 0xe0000000 /* Legacy SDMA */
#define HCFG_IOCAPTUREADDR 0x1f000000 /* The 4 LSBs of the captured I/O address. */
#define HCFG_LEGACYWRITE 0x00800000 /* 1 = write, 0 = read */
#define HCFG_LEGACYWORD 0x00400000 /* 1 = word, 0 = byte */
#define HCFG_LEGACYINT 0x00200000 /* 1 = legacy event captured. Write 1 to clear. */
/* NOTE: The rest of the bits in this register */
/* _are_ relevant under Linux. */
#define HCFG_CODECFORMAT_MASK 0x00070000 /* CODEC format */
#define HCFG_CODECFORMAT_AC97 0x00000000 /* AC97 CODEC format -- Primary Output */
#define HCFG_CODECFORMAT_I2S 0x00010000 /* I2S CODEC format -- Secondary (Rear) Output */
#define HCFG_GPINPUT0 0x00004000 /* External pin112 */
#define HCFG_GPINPUT1 0x00002000 /* External pin110 */
#define HCFG_GPOUTPUT_MASK 0x00001c00 /* External pins which may be controlled */
#define HCFG_GPOUT0 0x00001000 /* set to enable digital out on 5.1 cards */
#define HCFG_JOYENABLE 0x00000200 /* Internal joystick enable */
#define HCFG_PHASETRACKENABLE 0x00000100 /* Phase tracking enable */
/* 1 = Force all 3 async digital inputs to use */
/* the same async sample rate tracker (ZVIDEO) */
#define HCFG_AC3ENABLE_MASK 0x0x0000e0 /* AC3 async input control - Not implemented */
#define HCFG_AC3ENABLE_ZVIDEO 0x00000080 /* Channels 0 and 1 replace ZVIDEO */
#define HCFG_AC3ENABLE_CDSPDIF 0x00000040 /* Channels 0 and 1 replace CDSPDIF */
#define HCFG_AC3ENABLE_GPSPDIF 0x00000020 /* Channels 0 and 1 replace GPSPDIF */
#define HCFG_AUTOMUTE 0x00000010 /* When set, the async sample rate convertors */
/* will automatically mute their output when */
/* they are not rate-locked to the external */
/* async audio source */
#define HCFG_LOCKSOUNDCACHE 0x00000008 /* 1 = Cancel bustmaster accesses to soundcache */
/* NOTE: This should generally never be used. */
#define HCFG_LOCKTANKCACHE_MASK 0x00000004 /* 1 = Cancel bustmaster accesses to tankcache */
/* NOTE: This should generally never be used. */
#define HCFG_LOCKTANKCACHE 0x01020014
#define HCFG_MUTEBUTTONENABLE 0x00000002 /* 1 = Master mute button sets AUDIOENABLE = 0. */
/* NOTE: This is a 'cheap' way to implement a */
/* master mute function on the mute button, and */
/* in general should not be used unless a more */
/* sophisticated master mute function has not */
/* been written. */
#define HCFG_AUDIOENABLE 0x00000001 /* 0 = CODECs transmit zero-valued samples */
/* Should be set to 1 when the EMU10K1 is */
/* completely initialized. */
//For Audigy, MPU port move to 0x70-0x74 ptr register
#define MUDATA 0x18 /* MPU401 data register (8 bits) */
#define MUCMD 0x19 /* MPU401 command register (8 bits) */
#define MUCMD_RESET 0xff /* RESET command */
#define MUCMD_ENTERUARTMODE 0x3f /* Enter_UART_mode command */
/* NOTE: All other commands are ignored */
#define MUSTAT MUCMD /* MPU401 status register (8 bits) */
#define MUSTAT_IRDYN 0x80 /* 0 = MIDI data or command ACK */
#define MUSTAT_ORDYN 0x40 /* 0 = MUDATA can accept a command or data */
#define A_IOCFG 0x18 /* GPIO on Audigy card (16bits) */
#define A_GPINPUT_MASK 0xff00
#define A_GPOUTPUT_MASK 0x00ff
#define TIMER 0x1a /* Timer terminal count register (16-bit) */
/* NOTE: After the rate is changed, a maximum */
/* of 1024 sample periods should be allowed */
/* before the new rate is guaranteed accurate. */
#define TIMER_RATE_MASK 0x03ff /* Timer interrupt rate in sample periods */
/* 0 == 1024 periods, [1..4] are not useful */
#define AC97DATA 0x1c /* AC97 register set data register (16 bit) */
#define AC97ADDRESS 0x1e /* AC97 register set address register (8 bit) */
#define AC97ADDRESS_READY 0x80 /* Read-only bit, reflects CODEC READY signal */
#define AC97ADDRESS_ADDRESS 0x7f /* Address of indexed AC97 register */
/********************************************************************************************************/
/* Emu10k1 pointer-offset register set, accessed through the PTR and DATA registers */
/********************************************************************************************************/
#define CPF 0x00 /* Current pitch and fraction register */
#define CPF_CURRENTPITCH_MASK 0xffff0000 /* Current pitch (linear, 0x4000 == unity pitch shift) */
#define CPF_CURRENTPITCH 0x10100000
#define CPF_STEREO_MASK 0x00008000 /* 1 = Even channel interleave, odd channel locked */
#define CPF_STOP_MASK 0x00004000 /* 1 = Current pitch forced to 0 */
#define CPF_FRACADDRESS_MASK 0x00003fff /* Linear fractional address of the current channel */
#define PTRX 0x01 /* Pitch target and send A/B amounts register */
#define PTRX_PITCHTARGET_MASK 0xffff0000 /* Pitch target of specified channel */
#define PTRX_PITCHTARGET 0x10100001
#define PTRX_FXSENDAMOUNT_A_MASK 0x0000ff00 /* Linear level of channel output sent to FX send bus A */
#define PTRX_FXSENDAMOUNT_A 0x08080001
#define PTRX_FXSENDAMOUNT_B_MASK 0x000000ff /* Linear level of channel output sent to FX send bus B */
#define PTRX_FXSENDAMOUNT_B 0x08000001
#define CVCF 0x02 /* Current volume and filter cutoff register */
#define CVCF_CURRENTVOL_MASK 0xffff0000 /* Current linear volume of specified channel */
#define CVCF_CURRENTVOL 0x10100002
#define CVCF_CURRENTFILTER_MASK 0x0000ffff /* Current filter cutoff frequency of specified channel */
#define CVCF_CURRENTFILTER 0x10000002
#define VTFT 0x03 /* Volume target and filter cutoff target register */
#define VTFT_VOLUMETARGET_MASK 0xffff0000 /* Volume target of specified channel */
#define VTFT_FILTERTARGET_MASK 0x0000ffff /* Filter cutoff target of specified channel */
#define Z1 0x05 /* Filter delay memory 1 register */
#define Z2 0x04 /* Filter delay memory 2 register */
#define PSST 0x06 /* Send C amount and loop start address register */
#define PSST_FXSENDAMOUNT_C_MASK 0xff000000 /* Linear level of channel output sent to FX send bus C */
#define PSST_FXSENDAMOUNT_C 0x08180006
#define PSST_LOOPSTARTADDR_MASK 0x00ffffff /* Loop start address of the specified channel */
#define PSST_LOOPSTARTADDR 0x18000006
#define DSL 0x07 /* Send D amount and loop start address register */
#define DSL_FXSENDAMOUNT_D_MASK 0xff000000 /* Linear level of channel output sent to FX send bus D */
#define DSL_FXSENDAMOUNT_D 0x08180007
#define DSL_LOOPENDADDR_MASK 0x00ffffff /* Loop end address of the specified channel */
#define DSL_LOOPENDADDR 0x18000007
#define CCCA 0x08 /* Filter Q, interp. ROM, byte size, cur. addr register */
#define CCCA_RESONANCE 0xf0000000 /* Lowpass filter resonance (Q) height */
#define CCCA_INTERPROMMASK 0x0e000000 /* Selects passband of interpolation ROM */
/* 1 == full band, 7 == lowpass */
/* ROM 0 is used when pitch shifting downward or less */
/* then 3 semitones upward. Increasingly higher ROM */
/* numbers are used, typically in steps of 3 semitones, */
/* as upward pitch shifting is performed. */
#define CCCA_INTERPROM_0 0x00000000 /* Select interpolation ROM 0 */
#define CCCA_INTERPROM_1 0x02000000 /* Select interpolation ROM 1 */
#define CCCA_INTERPROM_2 0x04000000 /* Select interpolation ROM 2 */
#define CCCA_INTERPROM_3 0x06000000 /* Select interpolation ROM 3 */
#define CCCA_INTERPROM_4 0x08000000 /* Select interpolation ROM 4 */
#define CCCA_INTERPROM_5 0x0a000000 /* Select interpolation ROM 5 */
#define CCCA_INTERPROM_6 0x0c000000 /* Select interpolation ROM 6 */
#define CCCA_INTERPROM_7 0x0e000000 /* Select interpolation ROM 7 */
#define CCCA_8BITSELECT 0x01000000 /* 1 = Sound memory for this channel uses 8-bit samples */
#define CCCA_CURRADDR_MASK 0x00ffffff /* Current address of the selected channel */
#define CCCA_CURRADDR 0x18000008
#define CCR 0x09 /* Cache control register */
#define CCR_CACHEINVALIDSIZE 0x07190009
#define CCR_CACHEINVALIDSIZE_MASK 0xfe000000 /* Number of invalid samples cache for this channel */
#define CCR_CACHELOOPFLAG 0x01000000 /* 1 = Cache has a loop service pending */
#define CCR_INTERLEAVEDSAMPLES 0x00800000 /* 1 = A cache service will fetch interleaved samples */
#define CCR_WORDSIZEDSAMPLES 0x00400000 /* 1 = A cache service will fetch word sized samples */
#define CCR_READADDRESS 0x06100009
#define CCR_READADDRESS_MASK 0x003f0000 /* Location of cache just beyond current cache service */
#define CCR_LOOPINVALSIZE 0x0000fe00 /* Number of invalid samples in cache prior to loop */
/* NOTE: This is valid only if CACHELOOPFLAG is set */
#define CCR_LOOPFLAG 0x00000100 /* Set for a single sample period when a loop occurs */
#define CCR_CACHELOOPADDRHI 0x000000ff /* DSL_LOOPSTARTADDR's hi byte if CACHELOOPFLAG is set */
#define CLP 0x0a /* Cache loop register (valid if CCR_CACHELOOPFLAG = 1) */
/* NOTE: This register is normally not used */
#define CLP_CACHELOOPADDR 0x0000ffff /* Cache loop address (DSL_LOOPSTARTADDR [0..15]) */
#define FXRT 0x0b /* Effects send routing register */
/* NOTE: It is illegal to assign the same routing to */
/* two effects sends. */
#define FXRT_CHANNELA 0x000f0000 /* Effects send bus number for channel's effects send A */
#define FXRT_CHANNELB 0x00f00000 /* Effects send bus number for channel's effects send B */
#define FXRT_CHANNELC 0x0f000000 /* Effects send bus number for channel's effects send C */
#define FXRT_CHANNELD 0xf0000000 /* Effects send bus number for channel's effects send D */
#define MAPA 0x0c /* Cache map A */
#define MAPB 0x0d /* Cache map B */
#define MAP_PTE_MASK 0xffffe000 /* The 19 MSBs of the PTE indexed by the PTI */
#define MAP_PTI_MASK 0x00001fff /* The 13 bit index to one of the 8192 PTE dwords */
#define ENVVOL 0x10 /* Volume envelope register */
#define ENVVOL_MASK 0x0000ffff /* Current value of volume envelope state variable */
|