2 * ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381
5 * Copyright (c) 2000-2004 Jaroslav Kysela <perex@suse.cz>,
6 * Takashi Iwai <tiwai@suse.de>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <sound/driver.h>
26 #include <linux/delay.h>
27 #include <linux/interrupt.h>
28 #include <linux/init.h>
29 #include <sound/core.h>
30 #include <sound/control.h>
31 #include <sound/ak4xxx-adda.h>
33 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Takashi Iwai <tiwai@suse.de>");
34 MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx AD/DA converters");
35 MODULE_LICENSE("GPL");
37 void snd_akm4xxx_write(struct snd_akm4xxx
*ak
, int chip
, unsigned char reg
,
40 ak
->ops
.lock(ak
, chip
);
41 ak
->ops
.write(ak
, chip
, reg
, val
);
44 if (ak
->type
== SND_AK4524
|| ak
->type
== SND_AK4528
) {
45 if ((reg
!= 0x04 && reg
!= 0x05) || (val
& 0x80) == 0)
46 snd_akm4xxx_set(ak
, chip
, reg
, val
);
48 snd_akm4xxx_set_ipga(ak
, chip
, reg
, val
);
51 snd_akm4xxx_set(ak
, chip
, reg
, val
);
53 ak
->ops
.unlock(ak
, chip
);
56 EXPORT_SYMBOL(snd_akm4xxx_write
);
58 /* reset procedure for AK4524 and AK4528 */
59 static void ak4524_reset(struct snd_akm4xxx
*ak
, int state
)
62 unsigned char reg
, maxreg
;
64 if (ak
->type
== SND_AK4528
)
68 for (chip
= 0; chip
< ak
->num_dacs
/2; chip
++) {
69 snd_akm4xxx_write(ak
, chip
, 0x01, state
? 0x00 : 0x03);
73 for (reg
= 0x04; reg
< maxreg
; reg
++)
74 snd_akm4xxx_write(ak
, chip
, reg
,
75 snd_akm4xxx_get(ak
, chip
, reg
));
76 if (ak
->type
== SND_AK4528
)
79 for (reg
= 0x04; reg
< 0x06; reg
++)
80 snd_akm4xxx_write(ak
, chip
, reg
,
81 snd_akm4xxx_get_ipga(ak
, chip
, reg
));
85 /* reset procedure for AK4355 and AK4358 */
86 static void ak4355_reset(struct snd_akm4xxx
*ak
, int state
)
91 snd_akm4xxx_write(ak
, 0, 0x01, 0x02); /* reset and soft-mute */
94 for (reg
= 0x00; reg
< 0x0b; reg
++)
96 snd_akm4xxx_write(ak
, 0, reg
,
97 snd_akm4xxx_get(ak
, 0, reg
));
98 snd_akm4xxx_write(ak
, 0, 0x01, 0x01); /* un-reset, unmute */
101 /* reset procedure for AK4381 */
102 static void ak4381_reset(struct snd_akm4xxx
*ak
, int state
)
107 for (chip
= 0; chip
< ak
->num_dacs
/2; chip
++) {
108 snd_akm4xxx_write(ak
, chip
, 0x00, state
? 0x0c : 0x0f);
111 for (reg
= 0x01; reg
< 0x05; reg
++)
112 snd_akm4xxx_write(ak
, chip
, reg
,
113 snd_akm4xxx_get(ak
, chip
, reg
));
118 * reset the AKM codecs
119 * @state: 1 = reset codec, 0 = restore the registers
121 * assert the reset operation and restores the register values to the chips.
123 void snd_akm4xxx_reset(struct snd_akm4xxx
*ak
, int state
)
128 ak4524_reset(ak
, state
);
131 /* FIXME: needed for ak4529? */
135 ak4355_reset(ak
, state
);
138 ak4381_reset(ak
, state
);
143 EXPORT_SYMBOL(snd_akm4xxx_reset
);
146 * initialize all the ak4xxx chips
148 void snd_akm4xxx_init(struct snd_akm4xxx
*ak
)
150 static unsigned char inits_ak4524
[] = {
151 0x00, 0x07, /* 0: all power up */
152 0x01, 0x00, /* 1: ADC/DAC reset */
153 0x02, 0x60, /* 2: 24bit I2S */
154 0x03, 0x19, /* 3: deemphasis off */
155 0x01, 0x03, /* 1: ADC/DAC enable */
156 0x04, 0x00, /* 4: ADC left muted */
157 0x05, 0x00, /* 5: ADC right muted */
158 0x04, 0x80, /* 4: ADC IPGA gain 0dB */
159 0x05, 0x80, /* 5: ADC IPGA gain 0dB */
160 0x06, 0x00, /* 6: DAC left muted */
161 0x07, 0x00, /* 7: DAC right muted */
164 static unsigned char inits_ak4528
[] = {
165 0x00, 0x07, /* 0: all power up */
166 0x01, 0x00, /* 1: ADC/DAC reset */
167 0x02, 0x60, /* 2: 24bit I2S */
168 0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */
169 0x01, 0x03, /* 1: ADC/DAC enable */
170 0x04, 0x00, /* 4: ADC left muted */
171 0x05, 0x00, /* 5: ADC right muted */
174 static unsigned char inits_ak4529
[] = {
175 0x09, 0x01, /* 9: ATS=0, RSTN=1 */
176 0x0a, 0x3f, /* A: all power up, no zero/overflow detection */
177 0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */
178 0x01, 0x00, /* 1: ACKS=0, ADC, loop off */
179 0x02, 0xff, /* 2: LOUT1 muted */
180 0x03, 0xff, /* 3: ROUT1 muted */
181 0x04, 0xff, /* 4: LOUT2 muted */
182 0x05, 0xff, /* 5: ROUT2 muted */
183 0x06, 0xff, /* 6: LOUT3 muted */
184 0x07, 0xff, /* 7: ROUT3 muted */
185 0x0b, 0xff, /* B: LOUT4 muted */
186 0x0c, 0xff, /* C: ROUT4 muted */
187 0x08, 0x55, /* 8: deemphasis all off */
190 static unsigned char inits_ak4355
[] = {
191 0x01, 0x02, /* 1: reset and soft-mute */
192 0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
193 * disable DZF, sharp roll-off, RSTN#=0 */
194 0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
195 // 0x02, 0x2e, /* quad speed */
196 0x03, 0x01, /* 3: de-emphasis off */
197 0x04, 0x00, /* 4: LOUT1 volume muted */
198 0x05, 0x00, /* 5: ROUT1 volume muted */
199 0x06, 0x00, /* 6: LOUT2 volume muted */
200 0x07, 0x00, /* 7: ROUT2 volume muted */
201 0x08, 0x00, /* 8: LOUT3 volume muted */
202 0x09, 0x00, /* 9: ROUT3 volume muted */
203 0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
204 0x01, 0x01, /* 1: un-reset, unmute */
207 static unsigned char inits_ak4358
[] = {
208 0x01, 0x02, /* 1: reset and soft-mute */
209 0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect,
210 * disable DZF, sharp roll-off, RSTN#=0 */
211 0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
212 // 0x02, 0x2e, /* quad speed */
213 0x03, 0x01, /* 3: de-emphasis off */
214 0x04, 0x00, /* 4: LOUT1 volume muted */
215 0x05, 0x00, /* 5: ROUT1 volume muted */
216 0x06, 0x00, /* 6: LOUT2 volume muted */
217 0x07, 0x00, /* 7: ROUT2 volume muted */
218 0x08, 0x00, /* 8: LOUT3 volume muted */
219 0x09, 0x00, /* 9: ROUT3 volume muted */
220 0x0b, 0x00, /* b: LOUT4 volume muted */
221 0x0c, 0x00, /* c: ROUT4 volume muted */
222 0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
223 0x01, 0x01, /* 1: un-reset, unmute */
226 static unsigned char inits_ak4381
[] = {
227 0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */
228 0x01, 0x02, /* 1: de-emphasis off, normal speed,
229 * sharp roll-off, DZF off */
230 // 0x01, 0x12, /* quad speed */
231 0x02, 0x00, /* 2: DZF disabled */
232 0x03, 0x00, /* 3: LATT 0 */
233 0x04, 0x00, /* 4: RATT 0 */
234 0x00, 0x0f, /* 0: power-up, un-reset */
239 unsigned char *ptr
, reg
, data
, *inits
;
243 inits
= inits_ak4524
;
244 num_chips
= ak
->num_dacs
/ 2;
247 inits
= inits_ak4528
;
248 num_chips
= ak
->num_dacs
/ 2;
251 inits
= inits_ak4529
;
255 inits
= inits_ak4355
;
259 inits
= inits_ak4358
;
263 inits
= inits_ak4381
;
264 num_chips
= ak
->num_dacs
/ 2;
271 for (chip
= 0; chip
< num_chips
; chip
++) {
273 while (*ptr
!= 0xff) {
276 snd_akm4xxx_write(ak
, chip
, reg
, data
);
281 EXPORT_SYMBOL(snd_akm4xxx_init
);
283 #define AK_GET_CHIP(val) (((val) >> 8) & 0xff)
284 #define AK_GET_ADDR(val) ((val) & 0xff)
285 #define AK_GET_SHIFT(val) (((val) >> 16) & 0x7f)
286 #define AK_GET_INVERT(val) (((val) >> 23) & 1)
287 #define AK_GET_MASK(val) (((val) >> 24) & 0xff)
288 #define AK_COMPOSE(chip,addr,shift,mask) \
289 (((chip) << 8) | (addr) | ((shift) << 16) | ((mask) << 24))
290 #define AK_INVERT (1<<23)
292 static int snd_akm4xxx_volume_info(struct snd_kcontrol
*kcontrol
,
293 struct snd_ctl_elem_info
*uinfo
)
295 unsigned int mask
= AK_GET_MASK(kcontrol
->private_value
);
297 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
299 uinfo
->value
.integer
.min
= 0;
300 uinfo
->value
.integer
.max
= mask
;
304 static int snd_akm4xxx_volume_get(struct snd_kcontrol
*kcontrol
,
305 struct snd_ctl_elem_value
*ucontrol
)
307 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
308 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
309 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
310 int invert
= AK_GET_INVERT(kcontrol
->private_value
);
311 unsigned int mask
= AK_GET_MASK(kcontrol
->private_value
);
312 unsigned char val
= snd_akm4xxx_get(ak
, chip
, addr
);
314 ucontrol
->value
.integer
.value
[0] = invert
? mask
- val
: val
;
318 static int snd_akm4xxx_volume_put(struct snd_kcontrol
*kcontrol
,
319 struct snd_ctl_elem_value
*ucontrol
)
321 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
322 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
323 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
324 int invert
= AK_GET_INVERT(kcontrol
->private_value
);
325 unsigned int mask
= AK_GET_MASK(kcontrol
->private_value
);
326 unsigned char nval
= ucontrol
->value
.integer
.value
[0] % (mask
+1);
331 change
= snd_akm4xxx_get(ak
, chip
, addr
) != nval
;
333 snd_akm4xxx_write(ak
, chip
, addr
, nval
);
337 static int snd_akm4xxx_stereo_volume_info(struct snd_kcontrol
*kcontrol
,
338 struct snd_ctl_elem_info
*uinfo
)
340 unsigned int mask
= AK_GET_MASK(kcontrol
->private_value
);
342 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
344 uinfo
->value
.integer
.min
= 0;
345 uinfo
->value
.integer
.max
= mask
;
349 static int snd_akm4xxx_stereo_volume_get(struct snd_kcontrol
*kcontrol
,
350 struct snd_ctl_elem_value
*ucontrol
)
352 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
353 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
354 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
355 int invert
= AK_GET_INVERT(kcontrol
->private_value
);
356 unsigned int mask
= AK_GET_MASK(kcontrol
->private_value
);
357 unsigned char val
= snd_akm4xxx_get(ak
, chip
, addr
);
359 ucontrol
->value
.integer
.value
[0] = invert
? mask
- val
: val
;
361 val
= snd_akm4xxx_get(ak
, chip
, addr
+1);
362 ucontrol
->value
.integer
.value
[1] = invert
? mask
- val
: val
;
367 static int snd_akm4xxx_stereo_volume_put(struct snd_kcontrol
*kcontrol
,
368 struct snd_ctl_elem_value
*ucontrol
)
370 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
371 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
372 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
373 int invert
= AK_GET_INVERT(kcontrol
->private_value
);
374 unsigned int mask
= AK_GET_MASK(kcontrol
->private_value
);
375 unsigned char nval
= ucontrol
->value
.integer
.value
[0] % (mask
+1);
376 int change0
, change1
;
380 change0
= snd_akm4xxx_get(ak
, chip
, addr
) != nval
;
382 snd_akm4xxx_write(ak
, chip
, addr
, nval
);
384 nval
= ucontrol
->value
.integer
.value
[1] % (mask
+1);
387 change1
= snd_akm4xxx_get(ak
, chip
, addr
+1) != nval
;
389 snd_akm4xxx_write(ak
, chip
, addr
+1, nval
);
392 return change0
|| change1
;
395 static int snd_akm4xxx_ipga_gain_info(struct snd_kcontrol
*kcontrol
,
396 struct snd_ctl_elem_info
*uinfo
)
398 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
400 uinfo
->value
.integer
.min
= 0;
401 uinfo
->value
.integer
.max
= 36;
405 static int snd_akm4xxx_ipga_gain_get(struct snd_kcontrol
*kcontrol
,
406 struct snd_ctl_elem_value
*ucontrol
)
408 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
409 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
410 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
411 ucontrol
->value
.integer
.value
[0] =
412 snd_akm4xxx_get_ipga(ak
, chip
, addr
) & 0x7f;
416 static int snd_akm4xxx_ipga_gain_put(struct snd_kcontrol
*kcontrol
,
417 struct snd_ctl_elem_value
*ucontrol
)
419 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
420 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
421 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
422 unsigned char nval
= (ucontrol
->value
.integer
.value
[0] % 37) | 0x80;
423 int change
= snd_akm4xxx_get_ipga(ak
, chip
, addr
) != nval
;
425 snd_akm4xxx_write(ak
, chip
, addr
, nval
);
429 static int snd_akm4xxx_deemphasis_info(struct snd_kcontrol
*kcontrol
,
430 struct snd_ctl_elem_info
*uinfo
)
432 static char *texts
[4] = {
433 "44.1kHz", "Off", "48kHz", "32kHz",
435 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
437 uinfo
->value
.enumerated
.items
= 4;
438 if (uinfo
->value
.enumerated
.item
>= 4)
439 uinfo
->value
.enumerated
.item
= 3;
440 strcpy(uinfo
->value
.enumerated
.name
,
441 texts
[uinfo
->value
.enumerated
.item
]);
445 static int snd_akm4xxx_deemphasis_get(struct snd_kcontrol
*kcontrol
,
446 struct snd_ctl_elem_value
*ucontrol
)
448 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
449 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
450 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
451 int shift
= AK_GET_SHIFT(kcontrol
->private_value
);
452 ucontrol
->value
.enumerated
.item
[0] =
453 (snd_akm4xxx_get(ak
, chip
, addr
) >> shift
) & 3;
457 static int snd_akm4xxx_deemphasis_put(struct snd_kcontrol
*kcontrol
,
458 struct snd_ctl_elem_value
*ucontrol
)
460 struct snd_akm4xxx
*ak
= snd_kcontrol_chip(kcontrol
);
461 int chip
= AK_GET_CHIP(kcontrol
->private_value
);
462 int addr
= AK_GET_ADDR(kcontrol
->private_value
);
463 int shift
= AK_GET_SHIFT(kcontrol
->private_value
);
464 unsigned char nval
= ucontrol
->value
.enumerated
.item
[0] & 3;
467 nval
= (nval
<< shift
) |
468 (snd_akm4xxx_get(ak
, chip
, addr
) & ~(3 << shift
));
469 change
= snd_akm4xxx_get(ak
, chip
, addr
) != nval
;
471 snd_akm4xxx_write(ak
, chip
, addr
, nval
);
476 * build AK4xxx controls
479 int snd_akm4xxx_build_controls(struct snd_akm4xxx
*ak
)
481 unsigned int idx
, num_emphs
;
482 struct snd_kcontrol
*ctl
;
487 ctl
= kmalloc(sizeof(*ctl
), GFP_KERNEL
);
491 for (idx
= 0; idx
< ak
->num_dacs
; ) {
492 memset(ctl
, 0, sizeof(*ctl
));
493 if (ak
->channel_names
== NULL
) {
494 strcpy(ctl
->id
.name
, "DAC Volume");
496 ctl
->id
.index
= mixer_ch
+ ak
->idx_offset
* 2;
498 strcpy(ctl
->id
.name
, ak
->channel_names
[mixer_ch
]);
499 num_stereo
= ak
->num_stereo
[mixer_ch
];
502 ctl
->id
.iface
= SNDRV_CTL_ELEM_IFACE_MIXER
;
504 if (num_stereo
== 2) {
505 ctl
->info
= snd_akm4xxx_stereo_volume_info
;
506 ctl
->get
= snd_akm4xxx_stereo_volume_get
;
507 ctl
->put
= snd_akm4xxx_stereo_volume_put
;
509 ctl
->info
= snd_akm4xxx_volume_info
;
510 ctl
->get
= snd_akm4xxx_volume_get
;
511 ctl
->put
= snd_akm4xxx_volume_put
;
517 AK_COMPOSE(idx
/2, (idx
%2) + 6, 0, 127);
522 AK_COMPOSE(idx
/2, (idx
%2) + 4, 0, 127);
525 /* registers 2-7 and b,c */
526 int val
= idx
< 6 ? idx
+ 2 : (idx
- 6) + 0xb;
528 AK_COMPOSE(0, val
, 0, 255) | AK_INVERT
;
532 /* register 4-9, chip #0 only */
533 ctl
->private_value
= AK_COMPOSE(0, idx
+ 4, 0, 255);
537 /* register 4-9, chip #0 only */
539 AK_COMPOSE(0, idx
+ 5, 0, 255);
541 /* register 4-9, chip #0 only */
543 AK_COMPOSE(0, idx
+ 4, 0, 255);
548 AK_COMPOSE(idx
/2, (idx
%2) + 3, 0, 255);
555 ctl
->private_data
= ak
;
556 err
= snd_ctl_add(ak
->card
,
557 snd_ctl_new(ctl
, SNDRV_CTL_ELEM_ACCESS_READ
|
558 SNDRV_CTL_ELEM_ACCESS_WRITE
));
565 for (idx
= 0; idx
< ak
->num_adcs
&& ak
->type
== SND_AK4524
; ++idx
) {
566 memset(ctl
, 0, sizeof(*ctl
));
567 strcpy(ctl
->id
.name
, "ADC Volume");
568 ctl
->id
.index
= idx
+ ak
->idx_offset
* 2;
569 ctl
->id
.iface
= SNDRV_CTL_ELEM_IFACE_MIXER
;
571 ctl
->info
= snd_akm4xxx_volume_info
;
572 ctl
->get
= snd_akm4xxx_volume_get
;
573 ctl
->put
= snd_akm4xxx_volume_put
;
576 AK_COMPOSE(idx
/2, (idx
%2) + 4, 0, 127);
577 ctl
->private_data
= ak
;
578 err
= snd_ctl_add(ak
->card
,
579 snd_ctl_new(ctl
, SNDRV_CTL_ELEM_ACCESS_READ
|
580 SNDRV_CTL_ELEM_ACCESS_WRITE
));
584 memset(ctl
, 0, sizeof(*ctl
));
585 strcpy(ctl
->id
.name
, "IPGA Analog Capture Volume");
586 ctl
->id
.index
= idx
+ ak
->idx_offset
* 2;
587 ctl
->id
.iface
= SNDRV_CTL_ELEM_IFACE_MIXER
;
589 ctl
->info
= snd_akm4xxx_ipga_gain_info
;
590 ctl
->get
= snd_akm4xxx_ipga_gain_get
;
591 ctl
->put
= snd_akm4xxx_ipga_gain_put
;
593 ctl
->private_value
= AK_COMPOSE(idx
/2, (idx
%2) + 4, 0, 0);
594 ctl
->private_data
= ak
;
595 err
= snd_ctl_add(ak
->card
,
596 snd_ctl_new(ctl
, SNDRV_CTL_ELEM_ACCESS_READ
|
597 SNDRV_CTL_ELEM_ACCESS_WRITE
));
601 if (ak
->type
== SND_AK4355
|| ak
->type
== SND_AK4358
)
604 num_emphs
= ak
->num_dacs
/ 2;
605 for (idx
= 0; idx
< num_emphs
; idx
++) {
606 memset(ctl
, 0, sizeof(*ctl
));
607 strcpy(ctl
->id
.name
, "Deemphasis");
608 ctl
->id
.index
= idx
+ ak
->idx_offset
;
609 ctl
->id
.iface
= SNDRV_CTL_ELEM_IFACE_MIXER
;
611 ctl
->info
= snd_akm4xxx_deemphasis_info
;
612 ctl
->get
= snd_akm4xxx_deemphasis_get
;
613 ctl
->put
= snd_akm4xxx_deemphasis_put
;
618 ctl
->private_value
= AK_COMPOSE(idx
, 3, 0, 0);
621 int shift
= idx
== 3 ? 6 : (2 - idx
) * 2;
622 /* register 8 with shift */
623 ctl
->private_value
= AK_COMPOSE(0, 8, shift
, 0);
628 ctl
->private_value
= AK_COMPOSE(idx
, 3, 0, 0);
631 ctl
->private_value
= AK_COMPOSE(idx
, 1, 1, 0);
634 ctl
->private_data
= ak
;
635 err
= snd_ctl_add(ak
->card
,
636 snd_ctl_new(ctl
, SNDRV_CTL_ELEM_ACCESS_READ
|
637 SNDRV_CTL_ELEM_ACCESS_WRITE
));
648 EXPORT_SYMBOL(snd_akm4xxx_build_controls
);
650 static int __init
alsa_akm4xxx_module_init(void)
655 static void __exit
alsa_akm4xxx_module_exit(void)
659 module_init(alsa_akm4xxx_module_init
)
660 module_exit(alsa_akm4xxx_module_exit
)