aboutsummaryrefslogtreecommitdiffstats
path: root/include/sound/ac97_codec.h
blob: 4c43521cc493bd382815193f1315e3c3c088cedf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
#ifndef __SOUND_AC97_CODEC_H
#define __SOUND_AC97_CODEC_H

/*
 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
 *  Universal interface for Audio Codec '97
 *
 *  For more details look to AC '97 component specification revision 2.1
 *  by Intel Corporation (http://developer.intel.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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/workqueue.h>
#include "pcm.h"
#include "control.h"
#include "info.h"

/*
 *  AC'97 codec registers
 */

#define AC97_RESET		0x00	/* Reset */
#define AC97_MASTER		0x02	/* Master Volume */
#define AC97_HEADPHONE		0x04	/* Headphone Volume (optional) */
#define AC97_MASTER_MONO	0x06	/* Master Volume Mono (optional) */
#define AC97_MASTER_TONE	0x08	/* Master Tone (Bass & Treble) (optional) */
#define AC97_PC_BEEP		0x0a	/* PC Beep Volume (optinal) */
#define AC97_PHONE		0x0c	/* Phone Volume (optional) */
#define AC97_MIC		0x0e	/* MIC Volume */
#define AC97_LINE		0x10	/* Line In Volume */
#define AC97_CD			0x12	/* CD Volume */
#define AC97_VIDEO		0x14	/* Video Volume (optional) */
#define AC97_AUX		0x16	/* AUX Volume (optional) */
#define AC97_PCM		0x18	/* PCM Volume */
#define AC97_REC_SEL		0x1a	/* Record Select */
#define AC97_REC_GAIN		0x1c	/* Record Gain */
#define AC97_REC_GAIN_MIC	0x1e	/* Record Gain MIC (optional) */
#define AC97_GENERAL_PURPOSE	0x20	/* General Purpose (optional) */
#define AC97_3D_CONTROL		0x22	/* 3D Control (optional) */
#define AC97_INT_PAGING		0x24	/* Audio Interrupt & Paging (AC'97 2.3) */
#define AC97_POWERDOWN		0x26	/* Powerdown control / status */
/* range 0x28-0x3a - AUDIO AC'97 2.0 extensions */
#define AC97_EXTENDED_ID	0x28	/* Extended Audio ID */
#define AC97_EXTENDED_STATUS	0x2a	/* Extended Audio Status and Control */
#define AC97_PCM_FRONT_DAC_RATE 0x2c	/* PCM Front DAC Rate */
#define AC97_PCM_SURR_DAC_RATE	0x2e	/* PCM Surround DAC Rate */
#define AC97_PCM_LFE_DAC_RATE	0x30	/* PCM LFE DAC Rate */
#define AC97_PCM_LR_ADC_RATE	0x32	/* PCM LR ADC Rate */
#define AC97_PCM_MIC_ADC_RATE	0x34	/* PCM MIC ADC Rate */
#define AC97_CENTER_LFE_MASTER	0x36	/* Center + LFE Master Volume */
#define AC97_SURROUND_MASTER	0x38	/* Surround (Rear) Master Volume */
#define AC97_SPDIF		0x3a	/* S/PDIF control */
/* range 0x3c-0x58 - MODEM */
#define AC97_EXTENDED_MID	0x3c	/* Extended Modem ID */
#define AC97_EXTENDED_MSTATUS	0x3e	/* Extended Modem Status and Control */
#define AC97_LINE1_RATE		0x40	/* Line1 DAC/ADC Rate */
#define AC97_LINE2_RATE		0x42	/* Line2 DAC/ADC Rate */
#define AC97_HANDSET_RATE	0x44	/* Handset DAC/ADC Rate */
#define AC97_LINE1_LEVEL	0x46	/* Line1 DAC/ADC Level */
#define AC97_LINE2_LEVEL	0x48	/* Line2 DAC/ADC Level */
#define AC97_HANDSET_LEVEL	0x4a	/* Handset DAC/ADC Level */
#define AC97_GPIO_CFG		0x4c	/* GPIO Configuration */
#define AC97_GPIO_POLARITY	0x4e	/* GPIO Pin Polarity/Type, 0=low, 1=high active */
#define AC97_GPIO_STICKY	0x50	/* GPIO Pin Sticky, 0=not, 1=sticky */
#define AC97_GPIO_WAKEUP	0x52	/* GPIO Pin Wakeup, 0=no int, 1=yes int */
#define AC97_GPIO_STATUS	0x54	/* GPIO Pin Status, slot 12 */
#define AC97_MISC_AFE		0x56	/* Miscellaneous Modem AFE Status and Control */
/* range 0x5a-0x7b - Vendor Specific */
#define AC97_VENDOR_ID1		0x7c	/* Vendor ID1 */
#define AC97_VENDOR_ID2		0x7e	/* Vendor ID2 / revision */
/* range 0x60-0x6f (page 1) - extended codec registers */
#define AC97_CODEC_CLASS_REV	0x60	/* Codec Class/Revision */
#define AC97_PCI_SVID		0x62	/* PCI Subsystem Vendor ID */
#define AC97_PCI_SID		0x64	/* PCI Subsystem ID */
#define AC97_FUNC_SELECT	0x66	/* Function Select */
#define AC97_FUNC_INFO		0x68	/* Function Information */
#define AC97_SENSE_INFO		0x6a	/* Sense Details */

/* slot allocation */
#define AC97_SLOT_TAG		0
#define AC97_SLOT_CMD_ADDR	1
#define AC97_SLOT_CMD_DATA	2
#define AC97_SLOT_PCM_LEFT	3
#define AC97_SLOT_PCM_RIGHT	4
#define AC97_SLOT_MODEM_LINE1	5
#define AC97_SLOT_PCM_CENTER	6
#define AC97_SLOT_MIC		6	/* input */
#define AC97_SLOT_SPDIF_LEFT1	6
#define AC97_SLOT_PCM_SLEFT	7	/* surround left */
#define AC97_SLOT_PCM_LEFT_0	7	/* double rate operation */
#define AC97_SLOT_SPDIF_LEFT	7
#define AC97_SLOT_PCM_SRIGHT	8	/* surround right */
#define AC97_SLOT_PCM_RIGHT_0	8	/* double rate operation */
#define AC97_SLOT_SPDIF_RIGHT	8
#define AC97_SLOT_LFE		9
#define AC97_SLOT_SPDIF_RIGHT1	9
#define AC97_SLOT_MODEM_LINE2	10
#define AC97_SLOT_PCM_LEFT_1	10	/* double rate operation */
#define AC97_SLOT_SPDIF_LEFT2	10
#define AC97_SLOT_HANDSET	11	/* output */
#define AC97_SLOT_PCM_RIGHT_1	11	/* double rate operation */
#define AC97_SLOT_SPDIF_RIGHT2	11
#define AC97_SLOT_MODEM_GPIO	12	/* modem GPIO */
#define AC97_SLOT_PCM_CENTER_1	12	/* double rate operation */

/* basic capabilities (reset register) */
#define AC97_BC_DEDICATED_MIC	0x0001	/* Dedicated Mic PCM In Channel */
#define AC97_BC_RESERVED1	0x0002	/* Reserved (was Modem Line Codec support) */
#define AC97_BC_BASS_TREBLE	0x0004	/* Bass & Treble Control */
#define AC97_BC_SIM_STEREO	0x0008	/* Simulated stereo */
#define AC97_BC_HEADPHONE	0x0010	/* Headphone Out Support */
#define AC97_BC_LOUDNESS	0x0020	/* Loudness (bass boost) Support */
#define AC97_BC_16BIT_DAC	0x0000	/* 16-bit DAC resolution */
#define AC97_BC_18BIT_DAC	0x0040	/* 18-bit DAC resolution */
#define AC97_BC_20BIT_DAC	0x0080	/* 20-bit DAC resolution */
#define AC97_BC_DAC_MASK	0x00c0
#define AC97_BC_16BIT_ADC	0x0000	/* 16-bit ADC resolution */
#define AC97_BC_18BIT_ADC	0x0100	/* 18-bit ADC resolution */
#define AC97_BC_20BIT_ADC	0x0200	/* 20-bit ADC resolution */
#define AC97_BC_ADC_MASK	0x0300

/* general purpose */
#define AC97_GP_DRSS_MASK	0x0c00	/* double rate slot select */
#define AC97_GP_DRSS_1011	0x0000	/* LR(C) 10+11(+12) */
#define AC97_GP_DRSS_78		0x0400	/* LR 7+8 */

/* powerdown bits */
#define AC97_PD_ADC_STATUS	0x0001	/* ADC status (RO) */
#define AC97_PD_DAC_STATUS	0x0002	/* DAC status (RO) */
#define AC97_PD_MIXER_STATUS	0x0004	/* Analog mixer status (RO) */
#define AC97_PD_VREF_STATUS	0x0008	/* Vref status (RO) */
#define AC97_PD_PR0		0x0100	/* Power down PCM ADCs and input MUX */
#define AC97_PD_PR1		0x0200	/* Power down PCM front DAC */
#define AC97_PD_PR2		0x0400	/* Power down Mixer (Vref still on) */
#define AC97_PD_PR3		0x0800	/* Power down Mixer (Vref off) */
#define AC97_PD_PR4		0x1000	/* Power down AC-Link */
#define AC97_PD_PR5		0x2000	/* Disable internal clock usage */
#define AC97_PD_PR6		0x4000	/* Headphone amplifier */
#define AC97_PD_EAPD		0x8000	/* External Amplifer Power Down (EAPD) */

/* extended audio ID bit defines */
#define AC97_EI_VRA		0x0001	/* Variable bit rate supported */
#define AC97_EI_DRA		0x0002	/* Double rate supported */
#define AC97_EI_SPDIF		0x0004	/* S/PDIF out supported */
#define AC97_EI_VRM		0x0008	/* Variable bit rate supported for MIC */
#define AC97_EI_DACS_SLOT_MASK	0x0030	/* DACs slot assignment */
#define AC97_EI_DACS_SLOT_SHIFT	4
#define AC97_EI_CDAC		0x0040	/* PCM Center DAC available */
#define AC97_EI_SDAC		0x0080	/* PCM Surround DACs available */
#define AC97_EI_LDAC		0x0100	/* PCM LFE DAC available */
#define AC97_EI_AMAP		0x0200	/* indicates optional slot/DAC mapping based on codec ID */
#define AC97_EI_REV_MASK	0x0c00	/* AC'97 revision mask */
#define AC97_EI_REV_22		0x0400	/* AC'97 revision 2.2 */
#define AC97_EI_REV_23		0x0800	/* AC'97 revision 2.3 */
#define AC97_EI_REV_SHIFT	10
#define AC97_EI_ADDR_MASK	0xc000	/* physical codec ID (address) */
#define AC97_EI_ADDR_SHIFT	14

/* extended audio status and control bit defines */
#define AC97_EA_VRA		0x0001	/* Variable bit rate enable bit */
#define AC97_EA_DRA		0x0002	/* Double-rate audio enable bit */
#define AC97_EA_SPDIF		0x0004	/* S/PDIF out enable bit */
#define AC97_EA_VRM		0x0008	/* Variable bit rate for MIC enable bit */
#define AC97_EA_SPSA_SLOT_MASK	0x0030	/* Mask for slot assignment bits */
#define AC97_EA_SPSA_SLOT_SHIFT 4
#define AC97_EA_SPSA_3_4	0x0000	/* Slot assigned to 3 & 4 */
#define AC97_EA_SPSA_7_8	0x0010	/* Slot assigned to 7 & 8 */
#define AC97_EA_SPSA_6_9	0x0020	/* Slot assigned to 6 & 9 */
#define AC97_EA_SPSA_10_11	0x0030	/* Slot assigned to 10 & 11 */
#define AC97_EA_CDAC		0x0040	/* PCM Center DAC is ready (Read only) */
#define AC97_EA_SDAC		0x0080	/* PCM Surround DACs are ready (Read only) */
#define AC97_EA_LDAC		0x0100	/* PCM LFE DAC is ready (Read only) */
#define AC97_EA_MDAC		0x0200	/* MIC ADC is ready (Read only) */
#define AC97_EA_SPCV		0x0400	/* S/PDIF configuration valid (Read only) */
#define AC97_EA_PRI		0x0800	/* Turns the PCM Center DAC off */
#define AC97_EA_PRJ		0x1000	/* Turns the PCM Surround DACs off */
#define AC97_EA_PRK		0x2000	/* Turns the PCM LFE DAC off */
#define AC97_EA_PRL		0x4000	/* Turns the MIC ADC off */

/* S/PDIF control bit defines */
#define AC97_SC_PRO		0x0001	/* Professional status */
#define AC97_SC_NAUDIO		0x0002	/* Non audio stream */
#define AC97_SC_COPY		0x0004	/* Copyright status */
#define AC97_SC_PRE		0x0008	/* Preemphasis status */
#define AC97_SC_CC_MASK		0x07f0	/* Category Code mask */
#define AC97_SC_CC_SHIFT	4
#define AC97_SC_L		0x0800	/* Generation Level status */
#define AC97_SC_SPSR_MASK	0x3000	/* S/PDIF Sample Rate bits */
#define AC97_SC_SPSR_SHIFT	12
#define AC97_SC_SPSR_44K	0x0000	/* Use 44.1kHz Sample rate */
#define AC97_SC_SPSR_48K	0x2000	/* Use 48kHz Sample rate */
#define AC97_SC_SPSR_32K	0x3000	/* Use 32kHz Sample rate */
#define AC97_SC_DRS		0x4000	/* Double Rate S/PDIF */
#define AC97_SC_V		0x8000	/* Validity status */

/* Interrupt and Paging bit defines (AC'97 2.3) */
#define AC97_PAGE_MASK		0x000f	/* Page Selector */
#define AC97_PAGE_VENDOR	0	/* Vendor-specific registers */
#define AC97_PAGE_1		1	/* Extended Codec Registers page 1 */
#define AC97_INT_ENABLE		0x0800	/* Interrupt Enable */
#define AC97_INT_SENSE		0x1000	/* Sense Cycle */
#define AC97_INT_CAUSE_SENSE	0x2000	/* Sense Cycle Completed (RO) */
#define AC97_INT_CAUSE_GPIO	0x4000	/* GPIO bits changed (RO) */
#define AC97_INT_STATUS		0x8000	/* Interrupt Status */

/* extended modem ID bit defines */
#define AC97_MEI_LINE1		0x0001	/* Line1 present */
#define AC97_MEI_LINE2		0x0002	/* Line2 present */
#define AC97_MEI_HANDSET	0x0004	/* Handset present */
#define AC97_MEI_CID1		0x0008	/* caller ID decode for Line1 is supported */
#define AC97_MEI_CID2		0x0010	/* caller ID decode for Line2 is supported */
#define AC97_MEI_ADDR_MASK	0xc000	/* physical codec ID (address) */
#define AC97_MEI_ADDR_SHIFT	14

/* extended modem status and control bit defines */
#define AC97_MEA_GPIO		0x0001	/* GPIO is ready (ro) */
#define AC97_MEA_MREF		0x0002	/* Vref is up to nominal level (ro) */
#define AC97_MEA_ADC1		0x0004	/* ADC1 operational (ro) */
#define AC97_MEA_DAC1		0x0008	/* DAC1 operational (ro) */
#define AC97_MEA_ADC2		0x0010	/* ADC2 operational (ro) */
#define AC97_MEA_DAC2		0x0020	/* DAC2 operational (ro) */
#define AC97_MEA_HADC		0x0040	/* HADC operational (ro) */
#define AC97_MEA_HDAC		0x0080	/* HDAC operational (ro) */
#define AC97_MEA_PRA		0x0100	/* GPIO power down (high) */
#define AC97_MEA_PRB		0x0200	/* reserved */
#define AC97_MEA_PRC		0x0400	/* ADC1 power down (high) */
#define AC97_MEA_PRD		0x0800	/* DAC1 power down (high) */
#define AC97_MEA_PRE		0x1000	/* ADC2 power down (high) */
#define AC97_MEA_PRF		0x2000	/* DAC2 power down (high) */
#define AC97_MEA_PRG		0x4000	/* HADC power down (high) */
#define AC97_MEA_PRH		0x8000	/* HDAC power down (high) */

/* modem gpio status defines */
#define AC97_GPIO_LINE1_OH      0x0001  /* Off Hook Line1 */
#define AC97_GPIO_LINE1_RI      0x0002  /* Ring Detect Line1 */
#define AC97_GPIO_LINE1_CID     0x0004  /* Caller ID path enable Line1 */
#define AC97_GPIO_LINE1_LCS     0x0008  /* Loop Current Sense Line1 */
#define AC97_GPIO_LINE1_PULSE   0x0010  /* Opt./ Pulse Dial Line1 (out) */
#define AC97_GPIO_LINE1_HL1R    0x0020  /* Opt./ Handset to Line1 relay control (out) */
#define AC97_GPIO_LINE1_HOHD    0x0040  /* Opt./ Handset off hook detect Line1 (in) */
#define AC97_GPIO_LINE12_AC     0x0080  /* Opt./ Int.bit 1 / Line1/2 AC (out) */
#define AC97_GPIO_LINE12_DC     0x0100  /* Opt./ Int.bit 2 / Line1/2 DC (out) */
#define AC97_GPIO_LINE12_RS     0x0200  /* Opt./ Int.bit 3 / Line1/2 RS (out) */
#define AC97_GPIO_LINE2_OH      0x0400  /* Off Hook Line2 */
#define AC97_GPIO_LINE2_RI      0x0800  /* Ring Detect Line2 */
#define AC97_GPIO_LINE2_CID     0x1000  /* Caller ID path enable Line2 */
#define AC97_GPIO_LINE2_LCS     0x2000  /* Loop Current Sense Line2 */
#define AC97_GPIO_LINE2_PULSE   0x4000  /* Opt./ Pulse Dial Line2 (out) */
#define AC97_GPIO_LINE2_HL1R    0x8000  /* Opt./ Handset to Line2 relay control (out) */

/* specific - SigmaTel */
#define AC97_SIGMATEL_OUTSEL	0x64	/* Output Select, STAC9758 */
#define AC97_SIGMATEL_INSEL	0x66	/* Input Select, STAC9758 */
#define AC97_SIGMATEL_IOMISC	0x68	/* STAC9758 */
#define AC97_SIGMATEL_ANALOG	0x6c	/* Analog Special */
#define AC97_SIGMATEL_DAC2INVERT 0x6e
#define AC97_SIGMATEL_BIAS1	0x70
#define AC97_SIGMATEL_BIAS2	0x72
#define AC97_SIGMATEL_VARIOUS	0x72	/* STAC9758 */
#define AC97_SIGMATEL_MULTICHN	0x74	/* Multi-Channel programming */
#define AC97_SIGMATEL_CIC1	0x76
#define AC97_SIGMATEL_CIC2	0x78

/* specific - Analog Devices */
#define AC97_AD_TEST		0x5a	/* test register */
#define AC97_AD_TEST2		0x5c	/* undocumented test register 2 */
#define AC97_AD_CODEC_CFG	0x70	/* codec configuration */
#define AC97_AD_JACK_SPDIF	0x72	/* Jack Sense & S/PDIF */
#define AC97_AD_SERIAL_CFG	0x74	/* Serial Configuration */
#define AC97_AD_MISC		0x76	/* Misc Control Bits */

/* specific - Cirrus Logic */
#define AC97_CSR_ACMODE		0x5e	/* AC Mode Register */
#define AC97_CSR_MISC_CRYSTAL	0x60	/* Misc Crystal Control */
#define AC97_CSR_SPDIF		0x68	/* S/PDIF Register */
#define AC97_CSR_SERIAL		0x6a	/* Serial Port Control */
#define AC97_CSR_SPECF_ADDR	0x6c	/* Special Feature Address */
#define AC97_CSR_SPECF_DATA	0x6e	/* Special Feature Data */
#define AC97_CSR_BDI_STATUS	0x7a	/* BDI Status */

/* specific - Conexant */
#define AC97_CXR_AUDIO_MISC	0x5c
#define AC97_CXR_SPDIFEN	(1<<3)
#define AC97_CXR_COPYRGT	(1<<2)
#define AC97_CXR_SPDIF_MASK	(3<<0)
#define AC97_CXR_SPDIF_PCM	0x0
#define AC97_CXR_SPDIF_AC3	0x2

/* specific - ALC */
#define AC97_ALC650_SPDIF_INPUT_STATUS1	0x60
/* S/PDIF input status 1 bit defines */
#define AC97_ALC650_PRO             0x0001  /* Professional status */
#define AC97_ALC650_NAUDIO          0x0002  /* Non audio stream */
#define AC97_ALC650_COPY            0x0004  /* Copyright status */
#define AC97_ALC650_PRE             0x0038  /* Preemphasis status */
#define AC97_ALC650_PRE_SHIFT       3
#define AC97_ALC650_MODE            0x00C0  /* Preemphasis status */
#define AC97_ALC650_MODE_SHIFT      6
#define AC97_ALC650_CC_MASK         0x7f00  /* Category Code mask */
#define AC97_ALC650_CC_SHIFT        8
#define AC97_ALC650_L               0x8000  /* Generation Level status */

#define AC97_ALC650_SPDIF_INPUT_STATUS2	0x62
/* S/PDIF input status 2 bit defines */
#define AC97_ALC650_SOUCE_MASK      0x000f  /* Source number */
#define AC97_ALC650_CHANNEL_MASK    0x00f0  /* Channel number */
#define AC97_ALC650_CHANNEL_SHIFT   4 
#define AC97_ALC650_SPSR_MASK       0x0f00  /* S/PDIF Sample Rate bits */
#define AC97_ALC650_SPSR_SHIFT      8
#define AC97_ALC650_SPSR_44K        0x0000  /* Use 44.1kHz Sample rate */
#define AC97_ALC650_SPSR_48K        0x0200  /* Use 48kHz Sample rate */
#define AC97_ALC650_SPSR_32K        0x0300  /* Use 32kHz Sample rate */
#define AC97_ALC650_CLOCK_ACCURACY  0x3000  /* Clock accuracy */
#define AC97_ALC650_CLOCK_SHIFT     12
#define AC97_ALC650_CLOCK_LOCK      0x4000  /* Clock locked status */
#define AC97_ALC650_V               0x8000  /* Validity status */

#define AC97_ALC650_SURR_DAC_VOL	0x64
#define AC97_ALC650_LFE_DAC_VOL		0x66
#define AC97_ALC650_UNKNOWN1		0x68
#define AC97_ALC650_MULTICH		0x6a
#define AC97_ALC650_UNKNOWN2		0x6c
#define AC97_ALC650_REVISION		0x6e
#define AC97_ALC650_UNKNOWN3		0x70
#define AC97_ALC650_UNKNOWN4		0x72
#define AC97_ALC650_MISC		0x74
#define AC97_ALC650_GPIO_SETUP		0x76
#define AC97_ALC650_GPIO_STATUS		0x78
#define AC97_ALC650_CLOCK		0x7a

/* specific - Yamaha YMF753 */
#define AC97_YMF753_DIT_CTRL2	0x66	/* DIT Control 2 */
#define AC97_YMF753_3D_MODE_SEL	0x68	/* 3D Mode Select */

/* specific - C-Media */
#define AC97_CM9738_VENDOR_CTRL	0x5a
#define AC97_CM9739_MULTI_CHAN	0x64
#define AC97_CM9739_SPDIF_IN_STATUS	0x68 /* 32bit */
#define AC97_CM9739_SPDIF_CTRL	0x6c

/* specific - wolfson */
#define AC97_WM97XX_FMIXER_VOL  0x72
#define AC97_WM9704_RMIXER_VOL  0x74
#define AC97_WM9704_TEST        0x5a
#define AC97_WM9704_RPCM_VOL    0x70
#define AC97_WM9711_OUT3VOL     0x16


/* ac97->scaps */
#define AC97_SCAP_AUDIO		(1<<0)	/* audio codec 97 */
#define AC97_SCAP_MODEM		(1<<1)	/* modem codec 97 */
#define AC97_SCAP_SURROUND_DAC	(1<<2)	/* surround L&R DACs are present */
#define AC97_SCAP_CENTER_LFE_DAC (1<<3)	/* center and LFE DACs are present */
#define AC97_SCAP_SKIP_AUDIO	(1<<4)	/* skip audio part of codec */
#define AC97_SCAP_SKIP_MODEM	(1<<5)	/* skip modem part of codec */
#define AC97_SCAP_INDEP_SDIN	(1<<6)	/* independent SDIN */
#define AC97_SCAP_INV_EAPD	(1<<7)	/* inverted EAPD */
#define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */
#define AC97_SCAP_NO_SPDIF	(1<<9)	/* don't build SPDIF controls */
#define AC97_SCAP_EAPD_LED	(1<<10)	/* EAPD as mute LED */

/* ac97->flags */
#define AC97_HAS_PC_BEEP	(1<<0)	/* force PC Speaker usage */
#define AC97_AD_MULTI		(1<<1)	/* Analog Devices - multi codecs */
#define AC97_CS_SPDIF		(1<<2)	/* Cirrus Logic uses funky SPDIF */
#define AC97_CX_SPDIF		(1<<3)	/* Conexant's spdif interface */
#define AC97_STEREO_MUTES	(1<<4)	/* has stereo mute bits */
#define AC97_DOUBLE_RATE	(1<<5)	/* supports double rate playback */
#define AC97_HAS_NO_MASTER_VOL	(1<<6)	/* no Master volume */
#define AC97_HAS_NO_PCM_VOL	(1<<7)	/* no PCM volume */
#define AC97_DEFAULT_POWER_OFF	(1<<8)	/* no RESET write */
#define AC97_MODEM_PATCH	(1<<9)	/* modem patch */
#define AC97_HAS_NO_REC_GAIN	(1<<10) /* no Record gain */
#define AC97_HAS_NO_PHONE	(1<<11) /* no PHONE volume */
#define AC97_HAS_NO_PC_BEEP	(1<<12) /* no PC Beep volume */
#define AC97_HAS_NO_VIDEO	(1<<13) /* no Video volume */
#define AC97_HAS_NO_CD		(1<<14) /* no CD volume */
#define AC97_HAS_NO_MIC	(1<<15) /* no MIC volume */
#define AC97_HAS_NO_TONE	(1<<16) /* no Tone volume */
#define AC97_HAS_NO_STD_PCM	(1<<17)	/* no standard AC97 PCM volume and mute */
#define AC97_HAS_NO_AUX		(1<<18) /* no standard AC97 AUX volume and mute */

/* rates indexes */
#define AC97_RATES_FRONT_DAC	0
#define AC97_RATES_SURR_DAC	1
#define AC97_RATES_LFE_DAC	2
#define AC97_RATES_ADC		3
#define AC97_RATES_MIC_ADC	4
#define AC97_RATES_SPDIF	5

/*
 *
 */

struct snd_ac97;

struct snd_ac97_build_ops {
	int (*build_3d) (struct snd_ac97 *ac97);
	int (*build_specific) (struct snd_ac97 *ac97);
	int (*build_spdif) (struct snd_ac97 *ac97);
	int (*build_post_spdif) (struct snd_ac97 *ac97);
#ifdef CONFIG_PM
	void (*suspend) (struct snd_ac97 *ac97);
	void (*resume) (struct snd_ac97 *ac97);
#endif
	void (*update_jacks) (struct snd_ac97 *ac97);	/* for jack-sharing */
};

struct snd_ac97_bus_ops {
	void (*reset) (struct snd_ac97 *ac97);
	void (*write) (struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
	unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg);
	void (*wait) (struct snd_ac97 *ac97);
	void (*init) (struct snd_ac97 *ac97);
};

struct snd_ac97_bus {
	/* -- lowlevel (hardware) driver specific -- */
	struct snd_ac97_bus_ops *ops;
	void *private_data;
	void (*private_free) (struct snd_ac97_bus *bus);
	/* --- */
	struct snd_card *card;
	unsigned short num;	/* bus number */
	unsigned short no_vra: 1, /* bridge doesn't support VRA */
		       dra: 1,	/* bridge supports double rate */
		       isdin: 1;/* independent SDIN */
	unsigned int clock;	/* AC'97 base clock (usually 48000Hz) */
	spinlock_t bus_lock;	/* used mainly for slot allocation */
	unsigned short used_slots[2][4]; /* actually used PCM slots */
	unsigned short pcms_count; /* count of PCMs */
	struct ac97_pcm *pcms;
	struct snd_ac97 *codec[4];
	struct snd_info_entry *proc;
};

/* static resolution table */
struct snd_ac97_res_table {
	unsigned short reg;	/* register */
	unsigned short bits;	/* resolution bitmask */
};

struct snd_ac97_template {
	void *private_data;
	void (*private_free) (struct snd_ac97 *ac97);
	struct pci_dev *pci;	/* assigned PCI device - used for quirks */
	unsigned short num;	/* number of codec: 0 = primary, 1 = secondary */
	unsigned short addr;	/* physical address of codec [0-3] */
	unsigned int scaps;	/* driver capabilities */
	const struct snd_ac97_res_table *res_table;	/* static resolution */
};

struct snd_ac97 {
	/* -- lowlevel (hardware) driver specific -- */
	struct snd_ac97_build_ops * build_ops;
	void *private_data;
	void (*private_free) (struct snd_ac97 *ac97);
	/* --- */
	struct snd_ac97_bus *bus;
	struct pci_dev *pci;	/* assigned PCI device - used for quirks */
	struct snd_info_entry *proc;
	struct snd_info_entry *proc_regs;
	unsigned short subsystem_vendor;
	unsigned short subsystem_device;
	struct mutex reg_mutex;
	struct mutex page_mutex;	/* mutex for AD18xx multi-codecs and paging (2.3) */
	unsigned short num;	/* number of codec: 0 = primary, 1 = secondary */
	unsigned short addr;	/* physical address of codec [0-3] */
	unsigned int id;	/* identification of codec */
	unsigned short caps;	/* capabilities (register 0) */
	unsigned short ext_id;	/* extended feature identification (register 28) */
	unsigned short ext_mid;	/* extended modem ID (register 3C) */
	const struct snd_ac97_res_table *res_table;	/* static resolution */
	unsigned int scaps;	/* driver capabilities */
	unsigned int flags;	/* specific code */
	unsigned int rates[6];	/* see AC97_RATES_* defines */
	unsigned int spdif_status;
	unsigned short regs[0x80]; /* register cache */
	DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
	union {			/* vendor specific code */
		struct {
			unsigned short unchained[3];	// 0 = C34, 1 = C79, 2 = C69
			unsigned short chained[3];	// 0 = C34, 1 = C79, 2 = C69
			unsigned short id[3];		// codec IDs (lower 16-bit word)
			unsigned short pcmreg[3];	// PCM registers
			unsigned short codec_cfg[3];	// CODEC_CFG bits
		} ad18xx;
		unsigned int dev_flags;		/* device specific */
	} spec;
	/* jack-sharing info */
	unsigned char indep_surround;
	unsigned char channel_mode;

#ifdef CONFIG_SND_AC97_POWER_SAVE
	unsigned int power_up;	/* power states */
	struct workqueue_struct *power_workq;
	struct work_struct power_work;
#endif
	struct device dev;
};

#define to_ac97_t(d) container_of(d, struct snd_ac97, dev)

/* conditions */
static inline int ac97_is_audio(struct snd_ac97 * ac97)
{
	return (ac97->scaps & AC97_SCAP_AUDIO);
}
static inline int ac97_is_modem(struct snd_ac97 * ac97)
{
	return (ac97->scaps & AC97_SCAP_MODEM);
}
static inline int ac97_is_rev22(struct snd_ac97 * ac97)
{
	return (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_22;
}
static inline int ac97_can_amap(struct snd_ac97 * ac97)
{
	return (ac97->ext_id & AC97_EI_AMAP) != 0;
}
static inline int ac97_can_spdif(struct snd_ac97 * ac97)
{
	return (ac97->ext_id & AC97_EI_SPDIF) != 0;
}

/* functions */
/* create new AC97 bus */
int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
		 void *private_data, struct snd_ac97_bus **rbus);
/* create mixer controls */
int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
		   struct snd_ac97 **rac97);
const char *snd_ac97_get_short_name(struct snd_ac97 *ac97);

void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value);
#ifdef CONFIG_SND_AC97_POWER_SAVE
int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup);
#else
static inline int snd_ac97_update_power(struct snd_ac97 *ac97, int reg,
					int powerup)
{
	return 0;
}
#endif
#ifdef CONFIG_PM
void snd_ac97_suspend(struct snd_ac97 *ac97);
void snd_ac97_resume(struct snd_ac97 *ac97);
#endif

/* quirk types */
enum {
	AC97_TUNE_DEFAULT = -1,	/* use default from quirk list (not valid in list) */
	AC97_TUNE_NONE = 0,	/* nothing extra to do */
	AC97_TUNE_HP_ONLY,	/* headphone (true line-out) control as master only */
	AC97_TUNE_SWAP_HP,	/* swap headphone and master controls */
	AC97_TUNE_SWAP_SURROUND, /* swap master and surround controls */
	AC97_TUNE_AD_SHARING,	/* for AD1985, turn on OMS bit and use headphone */
	AC97_TUNE_ALC_JACK,	/* for Realtek, enable JACK detection */
	AC97_TUNE_INV_EAPD,	/* inverted EAPD implementation */
	AC97_TUNE_MUTE_LED,	/* EAPD bit works as mute LED */
	AC97_TUNE_HP_MUTE_LED,  /* EAPD bit works as mute LED, use headphone control as master */
};

struct ac97_quirk {
	unsigned short subvendor; /* PCI subsystem vendor id */
	unsigned short subdevice; /* PCI sybsystem device id */
	unsigned short mask;	/* device id bit mask, 0 = accept all */
	unsigned int codec_id;	/* codec id (if any), 0 = accept all */
	const char *name;	/* name shown as info */
	int type;		/* quirk type above */
};

int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override);
int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate);

/*
 * PCM allocation
 */

enum ac97_pcm_cfg {
	AC97_PCM_CFG_FRONT = 2,
	AC97_PCM_CFG_REAR = 10,		/* alias surround */
	AC97_PCM_CFG_LFE = 11,		/* center + lfe */
	AC97_PCM_CFG_40 = 4,		/* front + rear */
	AC97_PCM_CFG_51 = 6,		/* front + rear + center/lfe */
	AC97_PCM_CFG_SPDIF = 20
};

struct ac97_pcm {
	struct snd_ac97_bus *bus;
	unsigned int stream: 1,	   	   /* stream type: 1 = capture */
		     exclusive: 1,	   /* exclusive mode, don't override with other pcms */
		     copy_flag: 1,	   /* lowlevel driver must fill all entries */
		     spdif: 1;		   /* spdif pcm */
	unsigned short aslots;		   /* active slots */
	unsigned short cur_dbl;		   /* current double-rate state */
	unsigned int rates;		   /* available rates */
	struct {
		unsigned short slots;	   /* driver input: requested AC97 slot numbers */
		unsigned short rslots[4];  /* allocated slots per codecs */
		unsigned char rate_table[4];
		struct snd_ac97 *codec[4];	   /* allocated codecs */
	} r[2];				   /* 0 = standard rates, 1 = double rates */
	unsigned long private_value;	   /* used by the hardware driver */
};

int snd_ac97_pcm_assign(struct snd_ac97_bus *ac97,
			unsigned short pcms_count,
			const struct ac97_pcm *pcms);
int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
		      enum ac97_pcm_cfg cfg, unsigned short slots);
int snd_ac97_pcm_close(struct ac97_pcm *pcm);
int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime);

/* ad hoc AC97 device driver access */
extern struct bus_type ac97_bus_type;

#endif /* __SOUND_AC97_CODEC_H */