aboutsummaryrefslogtreecommitdiff
path: root/include/linux/ac97_codec.h
blob: 0260c3e79fddc90ec5ab08694fdfc72d9969860f (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
#ifndef _AC97_CODEC_H_
#define _AC97_CODEC_H_

#include <linux/types.h>
#include <linux/soundcard.h>

/* AC97 1.0 */
#define  AC97_RESET               0x0000      //
#define  AC97_MASTER_VOL_STEREO   0x0002      // Line Out
#define  AC97_HEADPHONE_VOL       0x0004      // 
#define  AC97_MASTER_VOL_MONO     0x0006      // TAD Output
#define  AC97_MASTER_TONE         0x0008      //
#define  AC97_PCBEEP_VOL          0x000a      // none
#define  AC97_PHONE_VOL           0x000c      // TAD Input (mono)
#define  AC97_MIC_VOL             0x000e      // MIC Input (mono)
#define  AC97_LINEIN_VOL          0x0010      // Line Input (stereo)
#define  AC97_CD_VOL              0x0012      // CD Input (stereo)
#define  AC97_VIDEO_VOL           0x0014      // none
#define  AC97_AUX_VOL             0x0016      // Aux Input (stereo)
#define  AC97_PCMOUT_VOL          0x0018      // Wave Output (stereo)
#define  AC97_RECORD_SELECT       0x001a      //
#define  AC97_RECORD_GAIN         0x001c
#define  AC97_RECORD_GAIN_MIC     0x001e
#define  AC97_GENERAL_PURPOSE     0x0020
#define  AC97_3D_CONTROL          0x0022
#define  AC97_MODEM_RATE          0x0024
#define  AC97_POWER_CONTROL       0x0026

/* AC'97 2.0 */
#define AC97_EXTENDED_ID          0x0028       /* Extended Audio ID */
#define AC97_EXTENDED_STATUS      0x002A       /* Extended Audio Status */
#define AC97_PCM_FRONT_DAC_RATE   0x002C       /* PCM Front DAC Rate */
#define AC97_PCM_SURR_DAC_RATE    0x002E       /* PCM Surround DAC Rate */
#define AC97_PCM_LFE_DAC_RATE     0x0030       /* PCM LFE DAC Rate */
#define AC97_PCM_LR_ADC_RATE      0x0032       /* PCM LR ADC Rate */
#define AC97_PCM_MIC_ADC_RATE     0x0034       /* PCM MIC ADC Rate */
#define AC97_CENTER_LFE_MASTER    0x0036       /* Center + LFE Master Volume */
#define AC97_SURROUND_MASTER      0x0038       /* Surround (Rear) Master Volume */
#define AC97_RESERVED_3A          0x003A       /* Reserved in AC '97 < 2.2 */

/* AC'97 2.2 */
#define AC97_SPDIF_CONTROL        0x003A       /* S/PDIF Control */

/* range 0x3c-0x58 - MODEM */
#define AC97_EXTENDED_MODEM_ID    0x003C
#define AC97_EXTEND_MODEM_STAT    0x003E
#define AC97_LINE1_RATE           0x0040
#define AC97_LINE2_RATE           0x0042
#define AC97_HANDSET_RATE         0x0044
#define AC97_LINE1_LEVEL          0x0046
#define AC97_LINE2_LEVEL          0x0048
#define AC97_HANDSET_LEVEL        0x004A
#define AC97_GPIO_CONFIG          0x004C
#define AC97_GPIO_POLARITY        0x004E
#define AC97_GPIO_STICKY          0x0050
#define AC97_GPIO_WAKE_UP         0x0052
#define AC97_GPIO_STATUS          0x0054
#define AC97_MISC_MODEM_STAT      0x0056
#define AC97_RESERVED_58          0x0058

/* registers 0x005a - 0x007a are vendor reserved */

#define AC97_VENDOR_ID1           0x007c
#define AC97_VENDOR_ID2           0x007e

/* volume control bit defines */
#define AC97_MUTE                 0x8000
#define AC97_MICBOOST             0x0040
#define AC97_LEFTVOL              0x3f00
#define AC97_RIGHTVOL             0x003f

/* record mux defines */
#define AC97_RECMUX_MIC           0x0000
#define AC97_RECMUX_CD            0x0101
#define AC97_RECMUX_VIDEO         0x0202
#define AC97_RECMUX_AUX           0x0303
#define AC97_RECMUX_LINE          0x0404
#define AC97_RECMUX_STEREO_MIX    0x0505
#define AC97_RECMUX_MONO_MIX      0x0606
#define AC97_RECMUX_PHONE         0x0707

/* general purpose register bit defines */
#define AC97_GP_LPBK              0x0080       /* Loopback mode */
#define AC97_GP_MS                0x0100       /* Mic Select 0=Mic1, 1=Mic2 */
#define AC97_GP_MIX               0x0200       /* Mono output select 0=Mix, 1=Mic */
#define AC97_GP_RLBK              0x0400       /* Remote Loopback - Modem line codec */
#define AC97_GP_LLBK              0x0800       /* Local Loopback - Modem Line codec */
#define AC97_GP_LD                0x1000       /* Loudness 1=on */
#define AC97_GP_3D                0x2000       /* 3D Enhancement 1=on */
#define AC97_GP_ST                0x4000       /* Stereo Enhancement 1=on */
#define AC97_GP_POP               0x8000       /* Pcm Out Path, 0=pre 3D, 1=post 3D */

/* 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 Enable bit */
#define AC97_EA_VRM               0x0008       /* Variable bit rate for MIC enable bit */
#define AC97_EA_CDAC              0x0040       /* PCM Center DAC is ready (Read only) */
#define AC97_EA_SDAC              0x0040       /* PCM Surround DACs are ready (Read only) */
#define AC97_EA_LDAC              0x0080       /* PCM LFE DAC is ready (Read only) */
#define AC97_EA_MDAC              0x0100       /* 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 */
#define AC97_EA_SLOT_MASK         0xffcf       /* Mask for slot assignment bits */
#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 */

/* 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_L                 0x0800       /* Generation Level status */
#define AC97_SC_SPSR_MASK         0xcfff       /* S/PDIF Sample Rate bits */
#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 */

/* powerdown control and status bit defines */

/* status */
#define AC97_PWR_MDM              0x0010       /* Modem section ready */
#define AC97_PWR_REF              0x0008       /* Vref nominal */
#define AC97_PWR_ANL              0x0004       /* Analog section ready */
#define AC97_PWR_DAC              0x0002       /* DAC section ready */
#define AC97_PWR_ADC              0x0001       /* ADC section ready */

/* control */
#define AC97_PWR_PR0              0x0100       /* ADC and Mux powerdown */
#define AC97_PWR_PR1              0x0200       /* DAC powerdown */
#define AC97_PWR_PR2              0x0400       /* Output mixer powerdown (Vref on) */
#define AC97_PWR_PR3              0x0800       /* Output mixer powerdown (Vref off) */
#define AC97_PWR_PR4              0x1000       /* AC-link powerdown */
#define AC97_PWR_PR5              0x2000       /* Internal Clk disable */
#define AC97_PWR_PR6              0x4000       /* HP amp powerdown */
#define AC97_PWR_PR7              0x8000       /* Modem off - if supported */

/* extended audio ID register bit defines */
#define AC97_EXTID_VRA            0x0001
#define AC97_EXTID_DRA            0x0002
#define AC97_EXTID_SPDIF          0x0004
#define AC97_EXTID_VRM            0x0008
#define AC97_EXTID_DSA0           0x0010
#define AC97_EXTID_DSA1           0x0020
#define AC97_EXTID_CDAC           0x0040
#define AC97_EXTID_SDAC           0x0080
#define AC97_EXTID_LDAC           0x0100
#define AC97_EXTID_AMAP           0x0200
#define AC97_EXTID_REV0           0x0400
#define AC97_EXTID_REV1           0x0800
#define AC97_EXTID_ID0            0x4000
#define AC97_EXTID_ID1            0x8000

/* extended status register bit defines */
#define AC97_EXTSTAT_VRA          0x0001
#define AC97_EXTSTAT_DRA          0x0002
#define AC97_EXTSTAT_SPDIF        0x0004
#define AC97_EXTSTAT_VRM          0x0008
#define AC97_EXTSTAT_SPSA0        0x0010
#define AC97_EXTSTAT_SPSA1        0x0020
#define AC97_EXTSTAT_CDAC         0x0040
#define AC97_EXTSTAT_SDAC         0x0080
#define AC97_EXTSTAT_LDAC         0x0100
#define AC97_EXTSTAT_MADC         0x0200
#define AC97_EXTSTAT_SPCV         0x0400
#define AC97_EXTSTAT_PRI          0x0800
#define AC97_EXTSTAT_PRJ          0x1000
#define AC97_EXTSTAT_PRK          0x2000
#define AC97_EXTSTAT_PRL          0x4000

/* extended audio ID register bit defines */
#define AC97_EXTID_VRA            0x0001
#define AC97_EXTID_DRA            0x0002
#define AC97_EXTID_SPDIF          0x0004
#define AC97_EXTID_VRM            0x0008
#define AC97_EXTID_DSA0           0x0010
#define AC97_EXTID_DSA1           0x0020
#define AC97_EXTID_CDAC           0x0040
#define AC97_EXTID_SDAC           0x0080
#define AC97_EXTID_LDAC           0x0100
#define AC97_EXTID_AMAP           0x0200
#define AC97_EXTID_REV0           0x0400
#define AC97_EXTID_REV1           0x0800
#define AC97_EXTID_ID0            0x4000
#define AC97_EXTID_ID1            0x8000

/* extended status register bit defines */
#define AC97_EXTSTAT_VRA          0x0001
#define AC97_EXTSTAT_DRA          0x0002
#define AC97_EXTSTAT_SPDIF        0x0004
#define AC97_EXTSTAT_VRM          0x0008
#define AC97_EXTSTAT_SPSA0        0x0010
#define AC97_EXTSTAT_SPSA1        0x0020
#define AC97_EXTSTAT_CDAC         0x0040
#define AC97_EXTSTAT_SDAC         0x0080
#define AC97_EXTSTAT_LDAC         0x0100
#define AC97_EXTSTAT_MADC         0x0200
#define AC97_EXTSTAT_SPCV         0x0400
#define AC97_EXTSTAT_PRI          0x0800
#define AC97_EXTSTAT_PRJ          0x1000
#define AC97_EXTSTAT_PRK          0x2000
#define AC97_EXTSTAT_PRL          0x4000

/* useful power states */
#define AC97_PWR_D0               0x0000      /* everything on */
#define AC97_PWR_D1              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR4
#define AC97_PWR_D2              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
#define AC97_PWR_D3              AC97_PWR_PR0|AC97_PWR_PR1|AC97_PWR_PR2|AC97_PWR_PR3|AC97_PWR_PR4
#define AC97_PWR_ANLOFF          AC97_PWR_PR2|AC97_PWR_PR3  /* analog section off */

/* Total number of defined registers.  */
#define AC97_REG_CNT 64


/* OSS interface to the ac97s.. */
#define AC97_STEREO_MASK (SOUND_MASK_VOLUME|SOUND_MASK_PCM|\
	SOUND_MASK_LINE|SOUND_MASK_CD|\
	SOUND_MASK_ALTPCM|SOUND_MASK_IGAIN|\
	SOUND_MASK_LINE1|SOUND_MASK_VIDEO)

#define AC97_SUPPORTED_MASK (AC97_STEREO_MASK | \
	SOUND_MASK_BASS|SOUND_MASK_TREBLE|\
	SOUND_MASK_SPEAKER|SOUND_MASK_MIC|\
	SOUND_MASK_PHONEIN|SOUND_MASK_PHONEOUT)

#define AC97_RECORD_MASK (SOUND_MASK_MIC|\
	SOUND_MASK_CD|SOUND_MASK_IGAIN|SOUND_MASK_VIDEO|\
	SOUND_MASK_LINE1| SOUND_MASK_LINE|\
	SOUND_MASK_PHONEIN)

/* original check is not good enough in case FOO is greater than
 * SOUND_MIXER_NRDEVICES because the supported_mixers has exactly
 * SOUND_MIXER_NRDEVICES elements.
 * before matching the given mixer against the bitmask in supported_mixers we
 * check if mixer number exceeds maximum allowed size which is as mentioned
 * above SOUND_MIXER_NRDEVICES */
#define supported_mixer(CODEC,FOO) ((FOO >= 0) && \
                                    (FOO < SOUND_MIXER_NRDEVICES) && \
                                    (CODEC)->supported_mixers & (1<<FOO) )

struct ac97_codec {
	/* Linked list of codecs */
	struct list_head list;

	/* AC97 controller connected with */
	void *private_data;

	char *name;
	int id;
	int dev_mixer; 
	int type;
	u32 model;

	unsigned int modem:1;

	struct ac97_ops *codec_ops;

	/* controller specific lower leverl ac97 accessing routines.
	   must be re-entrant safe */
	u16  (*codec_read)  (struct ac97_codec *codec, u8 reg);
	void (*codec_write) (struct ac97_codec *codec, u8 reg, u16 val);

	/* Wait for codec-ready.  Ok to sleep here.  */
	void  (*codec_wait)  (struct ac97_codec *codec);

	/* callback used by helper drivers for interesting ac97 setups */
	void  (*codec_unregister) (struct ac97_codec *codec);
	
	struct ac97_driver *driver;
	void *driver_private;	/* Private data for the driver */
	
	spinlock_t lock;
	
	/* OSS mixer masks */
	int modcnt;
	int supported_mixers;
	int stereo_mixers;
	int record_sources;

	/* Property flags */
	int flags;

	int bit_resolution;

	/* OSS mixer interface */
	int  (*read_mixer) (struct ac97_codec *codec, int oss_channel);
	void (*write_mixer)(struct ac97_codec *codec, int oss_channel,
			    unsigned int left, unsigned int right);
	int  (*recmask_io) (struct ac97_codec *codec, int rw, int mask);
	int  (*mixer_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);

	/* saved OSS mixer states */
	unsigned int mixer_state[SOUND_MIXER_NRDEVICES];

	/* Software Modem interface */
	int  (*modem_ioctl)(struct ac97_codec *codec, unsigned int cmd, unsigned long arg);
};

/*
 *	Operation structures for each known AC97 chip
 */
 
struct ac97_ops
{
	/* Initialise */
	int (*init)(struct ac97_codec *c);
	/* Amplifier control */
	int (*amplifier)(struct ac97_codec *codec, int on);
	/* Digital mode control */
	int (*digital)(struct ac97_codec *codec, int slots, int rate, int mode);
#define AUDIO_DIGITAL		0x8000
#define AUDIO_PRO		0x4000
#define AUDIO_DRS		0x2000
#define AUDIO_CCMASK		0x003F
	
#define AC97_DELUDED_MODEM	1	/* Audio codec reports its a modem */
#define AC97_NO_PCM_VOLUME	2	/* Volume control is missing 	   */
#define AC97_DEFAULT_POWER_OFF 4 /* Needs warm reset to power up */
};

extern int ac97_probe_codec(struct ac97_codec *);

extern struct ac97_codec *ac97_alloc_codec(void);
extern void ac97_release_codec(struct ac97_codec *codec);

struct ac97_driver {
	struct list_head list;
	char *name;
	u32 codec_id;
	u32 codec_mask;
	int (*probe) (struct ac97_codec *codec, struct ac97_driver *driver);
	void (*remove) (struct ac97_codec *codec, struct ac97_driver *driver);
};

/* 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 */
};

struct ac97_quirk {
	unsigned short vendor;  /* PCI vendor id */
	unsigned short device;  /* PCI device id */
	unsigned short mask;    /* device id bit mask, 0 = accept all */
	const char *name;       /* name shown as info */
	int type;               /* quirk type above */
};

#endif /* _AC97_CODEC_H_ */