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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381 | |
3 | * AD and DA converters | |
4 | * | |
c1017a4c | 5 | * Copyright (c) 2000-2004 Jaroslav Kysela <perex@perex.cz>, |
1da177e4 LT |
6 | * Takashi Iwai <tiwai@suse.de> |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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 | |
21 | * | |
22 | */ | |
23 | ||
1da177e4 LT |
24 | #include <asm/io.h> |
25 | #include <linux/delay.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/init.h> | |
28 | #include <sound/core.h> | |
29 | #include <sound/control.h> | |
723b2b0d | 30 | #include <sound/tlv.h> |
1da177e4 LT |
31 | #include <sound/ak4xxx-adda.h> |
32 | ||
c1017a4c | 33 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>"); |
1da177e4 LT |
34 | MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx AD/DA converters"); |
35 | MODULE_LICENSE("GPL"); | |
36 | ||
723b2b0d | 37 | /* write the given register and save the data to the cache */ |
cb9d24e4 TI |
38 | void snd_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char reg, |
39 | unsigned char val) | |
1da177e4 LT |
40 | { |
41 | ak->ops.lock(ak, chip); | |
42 | ak->ops.write(ak, chip, reg, val); | |
43 | ||
44 | /* save the data */ | |
854b66e4 | 45 | snd_akm4xxx_set(ak, chip, reg, val); |
1da177e4 LT |
46 | ak->ops.unlock(ak, chip); |
47 | } | |
48 | ||
cb9d24e4 TI |
49 | EXPORT_SYMBOL(snd_akm4xxx_write); |
50 | ||
51 | /* reset procedure for AK4524 and AK4528 */ | |
52 | static void ak4524_reset(struct snd_akm4xxx *ak, int state) | |
53 | { | |
54 | unsigned int chip; | |
55 | unsigned char reg, maxreg; | |
56 | ||
57 | if (ak->type == SND_AK4528) | |
58 | maxreg = 0x06; | |
59 | else | |
60 | maxreg = 0x08; | |
61 | for (chip = 0; chip < ak->num_dacs/2; chip++) { | |
62 | snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03); | |
63 | if (state) | |
64 | continue; | |
65 | /* DAC volumes */ | |
66 | for (reg = 0x04; reg < maxreg; reg++) | |
67 | snd_akm4xxx_write(ak, chip, reg, | |
68 | snd_akm4xxx_get(ak, chip, reg)); | |
cb9d24e4 TI |
69 | } |
70 | } | |
71 | ||
72 | /* reset procedure for AK4355 and AK4358 */ | |
841b23d4 PH |
73 | static void ak435X_reset(struct snd_akm4xxx *ak, int state, |
74 | unsigned char total_regs) | |
cb9d24e4 TI |
75 | { |
76 | unsigned char reg; | |
77 | ||
78 | if (state) { | |
79 | snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */ | |
80 | return; | |
81 | } | |
841b23d4 | 82 | for (reg = 0x00; reg < total_regs; reg++) |
cb9d24e4 TI |
83 | if (reg != 0x01) |
84 | snd_akm4xxx_write(ak, 0, reg, | |
85 | snd_akm4xxx_get(ak, 0, reg)); | |
86 | snd_akm4xxx_write(ak, 0, 0x01, 0x01); /* un-reset, unmute */ | |
87 | } | |
88 | ||
89 | /* reset procedure for AK4381 */ | |
90 | static void ak4381_reset(struct snd_akm4xxx *ak, int state) | |
91 | { | |
92 | unsigned int chip; | |
93 | unsigned char reg; | |
94 | ||
95 | for (chip = 0; chip < ak->num_dacs/2; chip++) { | |
96 | snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f); | |
97 | if (state) | |
98 | continue; | |
99 | for (reg = 0x01; reg < 0x05; reg++) | |
100 | snd_akm4xxx_write(ak, chip, reg, | |
101 | snd_akm4xxx_get(ak, chip, reg)); | |
102 | } | |
103 | } | |
104 | ||
1da177e4 LT |
105 | /* |
106 | * reset the AKM codecs | |
107 | * @state: 1 = reset codec, 0 = restore the registers | |
108 | * | |
109 | * assert the reset operation and restores the register values to the chips. | |
110 | */ | |
97f02e05 | 111 | void snd_akm4xxx_reset(struct snd_akm4xxx *ak, int state) |
1da177e4 | 112 | { |
1da177e4 LT |
113 | switch (ak->type) { |
114 | case SND_AK4524: | |
115 | case SND_AK4528: | |
cb9d24e4 | 116 | ak4524_reset(ak, state); |
1da177e4 LT |
117 | break; |
118 | case SND_AK4529: | |
119 | /* FIXME: needed for ak4529? */ | |
120 | break; | |
121 | case SND_AK4355: | |
841b23d4 PH |
122 | ak435X_reset(ak, state, 0x0b); |
123 | break; | |
1da177e4 | 124 | case SND_AK4358: |
841b23d4 | 125 | ak435X_reset(ak, state, 0x10); |
1da177e4 LT |
126 | break; |
127 | case SND_AK4381: | |
cb9d24e4 | 128 | ak4381_reset(ak, state); |
1da177e4 | 129 | break; |
cf93907b TI |
130 | default: |
131 | break; | |
1da177e4 LT |
132 | } |
133 | } | |
134 | ||
cb9d24e4 TI |
135 | EXPORT_SYMBOL(snd_akm4xxx_reset); |
136 | ||
723b2b0d TI |
137 | |
138 | /* | |
139 | * Volume conversion table for non-linear volumes | |
140 | * from -63.5dB (mute) to 0dB step 0.5dB | |
141 | * | |
142 | * Used for AK4524 input/ouput attenuation, AK4528, and | |
143 | * AK5365 input attenuation | |
144 | */ | |
517400cb | 145 | static const unsigned char vol_cvt_datt[128] = { |
723b2b0d TI |
146 | 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, |
147 | 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x06, | |
148 | 0x06, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x0a, | |
149 | 0x0a, 0x0b, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f, | |
150 | 0x10, 0x10, 0x11, 0x12, 0x12, 0x13, 0x13, 0x14, | |
151 | 0x15, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1a, 0x1c, | |
152 | 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x23, | |
153 | 0x24, 0x25, 0x26, 0x28, 0x29, 0x2a, 0x2b, 0x2d, | |
154 | 0x2e, 0x30, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, | |
155 | 0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3e, 0x3f, 0x40, | |
156 | 0x41, 0x42, 0x43, 0x44, 0x46, 0x47, 0x48, 0x4a, | |
157 | 0x4b, 0x4d, 0x4e, 0x50, 0x51, 0x52, 0x53, 0x54, | |
158 | 0x55, 0x56, 0x58, 0x59, 0x5b, 0x5c, 0x5e, 0x5f, | |
159 | 0x60, 0x61, 0x62, 0x64, 0x65, 0x66, 0x67, 0x69, | |
160 | 0x6a, 0x6c, 0x6d, 0x6f, 0x70, 0x71, 0x72, 0x73, | |
161 | 0x75, 0x76, 0x77, 0x79, 0x7a, 0x7c, 0x7d, 0x7f, | |
162 | }; | |
163 | ||
164 | /* | |
165 | * dB tables | |
166 | */ | |
0cb29ea0 TI |
167 | static const DECLARE_TLV_DB_SCALE(db_scale_vol_datt, -6350, 50, 1); |
168 | static const DECLARE_TLV_DB_SCALE(db_scale_8bit, -12750, 50, 1); | |
169 | static const DECLARE_TLV_DB_SCALE(db_scale_7bit, -6350, 50, 1); | |
170 | static const DECLARE_TLV_DB_LINEAR(db_scale_linear, TLV_DB_GAIN_MUTE, 0); | |
723b2b0d | 171 | |
1da177e4 LT |
172 | /* |
173 | * initialize all the ak4xxx chips | |
174 | */ | |
97f02e05 | 175 | void snd_akm4xxx_init(struct snd_akm4xxx *ak) |
1da177e4 | 176 | { |
0cb29ea0 | 177 | static const unsigned char inits_ak4524[] = { |
1da177e4 LT |
178 | 0x00, 0x07, /* 0: all power up */ |
179 | 0x01, 0x00, /* 1: ADC/DAC reset */ | |
180 | 0x02, 0x60, /* 2: 24bit I2S */ | |
181 | 0x03, 0x19, /* 3: deemphasis off */ | |
182 | 0x01, 0x03, /* 1: ADC/DAC enable */ | |
183 | 0x04, 0x00, /* 4: ADC left muted */ | |
184 | 0x05, 0x00, /* 5: ADC right muted */ | |
1da177e4 LT |
185 | 0x06, 0x00, /* 6: DAC left muted */ |
186 | 0x07, 0x00, /* 7: DAC right muted */ | |
187 | 0xff, 0xff | |
188 | }; | |
517400cb | 189 | static const unsigned char inits_ak4528[] = { |
1da177e4 LT |
190 | 0x00, 0x07, /* 0: all power up */ |
191 | 0x01, 0x00, /* 1: ADC/DAC reset */ | |
192 | 0x02, 0x60, /* 2: 24bit I2S */ | |
193 | 0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */ | |
194 | 0x01, 0x03, /* 1: ADC/DAC enable */ | |
195 | 0x04, 0x00, /* 4: ADC left muted */ | |
196 | 0x05, 0x00, /* 5: ADC right muted */ | |
197 | 0xff, 0xff | |
198 | }; | |
517400cb | 199 | static const unsigned char inits_ak4529[] = { |
1da177e4 LT |
200 | 0x09, 0x01, /* 9: ATS=0, RSTN=1 */ |
201 | 0x0a, 0x3f, /* A: all power up, no zero/overflow detection */ | |
202 | 0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */ | |
203 | 0x01, 0x00, /* 1: ACKS=0, ADC, loop off */ | |
204 | 0x02, 0xff, /* 2: LOUT1 muted */ | |
205 | 0x03, 0xff, /* 3: ROUT1 muted */ | |
206 | 0x04, 0xff, /* 4: LOUT2 muted */ | |
207 | 0x05, 0xff, /* 5: ROUT2 muted */ | |
208 | 0x06, 0xff, /* 6: LOUT3 muted */ | |
209 | 0x07, 0xff, /* 7: ROUT3 muted */ | |
210 | 0x0b, 0xff, /* B: LOUT4 muted */ | |
211 | 0x0c, 0xff, /* C: ROUT4 muted */ | |
212 | 0x08, 0x55, /* 8: deemphasis all off */ | |
213 | 0xff, 0xff | |
214 | }; | |
517400cb | 215 | static const unsigned char inits_ak4355[] = { |
1da177e4 | 216 | 0x01, 0x02, /* 1: reset and soft-mute */ |
cb9d24e4 TI |
217 | 0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, |
218 | * disable DZF, sharp roll-off, RSTN#=0 */ | |
1da177e4 LT |
219 | 0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */ |
220 | // 0x02, 0x2e, /* quad speed */ | |
221 | 0x03, 0x01, /* 3: de-emphasis off */ | |
222 | 0x04, 0x00, /* 4: LOUT1 volume muted */ | |
223 | 0x05, 0x00, /* 5: ROUT1 volume muted */ | |
224 | 0x06, 0x00, /* 6: LOUT2 volume muted */ | |
225 | 0x07, 0x00, /* 7: ROUT2 volume muted */ | |
226 | 0x08, 0x00, /* 8: LOUT3 volume muted */ | |
227 | 0x09, 0x00, /* 9: ROUT3 volume muted */ | |
228 | 0x0a, 0x00, /* a: DATT speed=0, ignore DZF */ | |
229 | 0x01, 0x01, /* 1: un-reset, unmute */ | |
230 | 0xff, 0xff | |
231 | }; | |
517400cb | 232 | static const unsigned char inits_ak4358[] = { |
1da177e4 | 233 | 0x01, 0x02, /* 1: reset and soft-mute */ |
cb9d24e4 TI |
234 | 0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, |
235 | * disable DZF, sharp roll-off, RSTN#=0 */ | |
1da177e4 LT |
236 | 0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */ |
237 | // 0x02, 0x2e, /* quad speed */ | |
238 | 0x03, 0x01, /* 3: de-emphasis off */ | |
239 | 0x04, 0x00, /* 4: LOUT1 volume muted */ | |
240 | 0x05, 0x00, /* 5: ROUT1 volume muted */ | |
241 | 0x06, 0x00, /* 6: LOUT2 volume muted */ | |
242 | 0x07, 0x00, /* 7: ROUT2 volume muted */ | |
243 | 0x08, 0x00, /* 8: LOUT3 volume muted */ | |
244 | 0x09, 0x00, /* 9: ROUT3 volume muted */ | |
245 | 0x0b, 0x00, /* b: LOUT4 volume muted */ | |
246 | 0x0c, 0x00, /* c: ROUT4 volume muted */ | |
247 | 0x0a, 0x00, /* a: DATT speed=0, ignore DZF */ | |
248 | 0x01, 0x01, /* 1: un-reset, unmute */ | |
249 | 0xff, 0xff | |
250 | }; | |
517400cb | 251 | static const unsigned char inits_ak4381[] = { |
1da177e4 | 252 | 0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */ |
cb9d24e4 TI |
253 | 0x01, 0x02, /* 1: de-emphasis off, normal speed, |
254 | * sharp roll-off, DZF off */ | |
1da177e4 LT |
255 | // 0x01, 0x12, /* quad speed */ |
256 | 0x02, 0x00, /* 2: DZF disabled */ | |
257 | 0x03, 0x00, /* 3: LATT 0 */ | |
258 | 0x04, 0x00, /* 4: RATT 0 */ | |
259 | 0x00, 0x0f, /* 0: power-up, un-reset */ | |
260 | 0xff, 0xff | |
261 | }; | |
262 | ||
263 | int chip, num_chips; | |
517400cb TI |
264 | const unsigned char *ptr, *inits; |
265 | unsigned char reg, data; | |
1da177e4 | 266 | |
723b2b0d TI |
267 | memset(ak->images, 0, sizeof(ak->images)); |
268 | memset(ak->volumes, 0, sizeof(ak->volumes)); | |
269 | ||
1da177e4 LT |
270 | switch (ak->type) { |
271 | case SND_AK4524: | |
272 | inits = inits_ak4524; | |
273 | num_chips = ak->num_dacs / 2; | |
274 | break; | |
275 | case SND_AK4528: | |
276 | inits = inits_ak4528; | |
277 | num_chips = ak->num_dacs / 2; | |
278 | break; | |
279 | case SND_AK4529: | |
280 | inits = inits_ak4529; | |
281 | num_chips = 1; | |
282 | break; | |
283 | case SND_AK4355: | |
284 | inits = inits_ak4355; | |
285 | num_chips = 1; | |
286 | break; | |
287 | case SND_AK4358: | |
288 | inits = inits_ak4358; | |
289 | num_chips = 1; | |
290 | break; | |
291 | case SND_AK4381: | |
292 | inits = inits_ak4381; | |
293 | num_chips = ak->num_dacs / 2; | |
294 | break; | |
723b2b0d TI |
295 | case SND_AK5365: |
296 | /* FIXME: any init sequence? */ | |
297 | return; | |
1da177e4 LT |
298 | default: |
299 | snd_BUG(); | |
300 | return; | |
301 | } | |
302 | ||
303 | for (chip = 0; chip < num_chips; chip++) { | |
304 | ptr = inits; | |
305 | while (*ptr != 0xff) { | |
306 | reg = *ptr++; | |
307 | data = *ptr++; | |
308 | snd_akm4xxx_write(ak, chip, reg, data); | |
309 | } | |
310 | } | |
311 | } | |
312 | ||
cb9d24e4 TI |
313 | EXPORT_SYMBOL(snd_akm4xxx_init); |
314 | ||
723b2b0d TI |
315 | /* |
316 | * Mixer callbacks | |
317 | */ | |
854b66e4 | 318 | #define AK_IPGA (1<<20) /* including IPGA */ |
723b2b0d TI |
319 | #define AK_VOL_CVT (1<<21) /* need dB conversion */ |
320 | #define AK_NEEDSMSB (1<<22) /* need MSB update bit */ | |
321 | #define AK_INVERT (1<<23) /* data is inverted */ | |
1da177e4 LT |
322 | #define AK_GET_CHIP(val) (((val) >> 8) & 0xff) |
323 | #define AK_GET_ADDR(val) ((val) & 0xff) | |
854b66e4 | 324 | #define AK_GET_SHIFT(val) (((val) >> 16) & 0x0f) |
723b2b0d | 325 | #define AK_GET_VOL_CVT(val) (((val) >> 21) & 1) |
854b66e4 | 326 | #define AK_GET_IPGA(val) (((val) >> 20) & 1) |
3479307f | 327 | #define AK_GET_NEEDSMSB(val) (((val) >> 22) & 1) |
1da177e4 LT |
328 | #define AK_GET_INVERT(val) (((val) >> 23) & 1) |
329 | #define AK_GET_MASK(val) (((val) >> 24) & 0xff) | |
cb9d24e4 TI |
330 | #define AK_COMPOSE(chip,addr,shift,mask) \ |
331 | (((chip) << 8) | (addr) | ((shift) << 16) | ((mask) << 24)) | |
1da177e4 | 332 | |
97f02e05 TI |
333 | static int snd_akm4xxx_volume_info(struct snd_kcontrol *kcontrol, |
334 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
335 | { |
336 | unsigned int mask = AK_GET_MASK(kcontrol->private_value); | |
337 | ||
338 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
339 | uinfo->count = 1; | |
340 | uinfo->value.integer.min = 0; | |
341 | uinfo->value.integer.max = mask; | |
342 | return 0; | |
343 | } | |
344 | ||
97f02e05 TI |
345 | static int snd_akm4xxx_volume_get(struct snd_kcontrol *kcontrol, |
346 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 347 | { |
97f02e05 | 348 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
349 | int chip = AK_GET_CHIP(kcontrol->private_value); |
350 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
3479307f | 351 | |
723b2b0d | 352 | ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr); |
1da177e4 LT |
353 | return 0; |
354 | } | |
355 | ||
723b2b0d TI |
356 | static int put_ak_reg(struct snd_kcontrol *kcontrol, int addr, |
357 | unsigned char nval) | |
1da177e4 | 358 | { |
97f02e05 | 359 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); |
1da177e4 | 360 | unsigned int mask = AK_GET_MASK(kcontrol->private_value); |
723b2b0d | 361 | int chip = AK_GET_CHIP(kcontrol->private_value); |
1da177e4 | 362 | |
723b2b0d TI |
363 | if (snd_akm4xxx_get_vol(ak, chip, addr) == nval) |
364 | return 0; | |
365 | ||
366 | snd_akm4xxx_set_vol(ak, chip, addr, nval); | |
854b66e4 | 367 | if (AK_GET_VOL_CVT(kcontrol->private_value) && nval < 128) |
723b2b0d | 368 | nval = vol_cvt_datt[nval]; |
854b66e4 TI |
369 | if (AK_GET_IPGA(kcontrol->private_value) && nval >= 128) |
370 | nval++; /* need to correct + 1 since both 127 and 128 are 0dB */ | |
723b2b0d | 371 | if (AK_GET_INVERT(kcontrol->private_value)) |
1da177e4 | 372 | nval = mask - nval; |
723b2b0d | 373 | if (AK_GET_NEEDSMSB(kcontrol->private_value)) |
3479307f | 374 | nval |= 0x80; |
841b23d4 PH |
375 | /* printk(KERN_DEBUG "DEBUG - AK writing reg: chip %x addr %x, |
376 | nval %x\n", chip, addr, nval); */ | |
723b2b0d TI |
377 | snd_akm4xxx_write(ak, chip, addr, nval); |
378 | return 1; | |
379 | } | |
380 | ||
381 | static int snd_akm4xxx_volume_put(struct snd_kcontrol *kcontrol, | |
382 | struct snd_ctl_elem_value *ucontrol) | |
383 | { | |
02ff1324 TI |
384 | unsigned int mask = AK_GET_MASK(kcontrol->private_value); |
385 | unsigned int val = ucontrol->value.integer.value[0]; | |
386 | if (val > mask) | |
387 | return -EINVAL; | |
388 | return put_ak_reg(kcontrol, AK_GET_ADDR(kcontrol->private_value), val); | |
1da177e4 LT |
389 | } |
390 | ||
c83c0c47 | 391 | static int snd_akm4xxx_stereo_volume_info(struct snd_kcontrol *kcontrol, |
cb9d24e4 | 392 | struct snd_ctl_elem_info *uinfo) |
c83c0c47 JA |
393 | { |
394 | unsigned int mask = AK_GET_MASK(kcontrol->private_value); | |
395 | ||
396 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
397 | uinfo->count = 2; | |
398 | uinfo->value.integer.min = 0; | |
399 | uinfo->value.integer.max = mask; | |
400 | return 0; | |
401 | } | |
402 | ||
403 | static int snd_akm4xxx_stereo_volume_get(struct snd_kcontrol *kcontrol, | |
cb9d24e4 | 404 | struct snd_ctl_elem_value *ucontrol) |
c83c0c47 JA |
405 | { |
406 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); | |
407 | int chip = AK_GET_CHIP(kcontrol->private_value); | |
408 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
c83c0c47 | 409 | |
723b2b0d TI |
410 | ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr); |
411 | ucontrol->value.integer.value[1] = snd_akm4xxx_get_vol(ak, chip, addr+1); | |
c83c0c47 JA |
412 | return 0; |
413 | } | |
414 | ||
415 | static int snd_akm4xxx_stereo_volume_put(struct snd_kcontrol *kcontrol, | |
cb9d24e4 | 416 | struct snd_ctl_elem_value *ucontrol) |
c83c0c47 | 417 | { |
c83c0c47 | 418 | int addr = AK_GET_ADDR(kcontrol->private_value); |
02ff1324 TI |
419 | unsigned int mask = AK_GET_MASK(kcontrol->private_value); |
420 | unsigned int val[2]; | |
723b2b0d | 421 | int change; |
c83c0c47 | 422 | |
02ff1324 TI |
423 | val[0] = ucontrol->value.integer.value[0]; |
424 | val[1] = ucontrol->value.integer.value[1]; | |
425 | if (val[0] > mask || val[1] > mask) | |
426 | return -EINVAL; | |
427 | change = put_ak_reg(kcontrol, addr, val[0]); | |
428 | change |= put_ak_reg(kcontrol, addr + 1, val[1]); | |
723b2b0d | 429 | return change; |
c83c0c47 JA |
430 | } |
431 | ||
97f02e05 TI |
432 | static int snd_akm4xxx_deemphasis_info(struct snd_kcontrol *kcontrol, |
433 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
434 | { |
435 | static char *texts[4] = { | |
436 | "44.1kHz", "Off", "48kHz", "32kHz", | |
437 | }; | |
438 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
439 | uinfo->count = 1; | |
440 | uinfo->value.enumerated.items = 4; | |
441 | if (uinfo->value.enumerated.item >= 4) | |
442 | uinfo->value.enumerated.item = 3; | |
cb9d24e4 TI |
443 | strcpy(uinfo->value.enumerated.name, |
444 | texts[uinfo->value.enumerated.item]); | |
1da177e4 LT |
445 | return 0; |
446 | } | |
447 | ||
97f02e05 TI |
448 | static int snd_akm4xxx_deemphasis_get(struct snd_kcontrol *kcontrol, |
449 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 450 | { |
97f02e05 | 451 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
452 | int chip = AK_GET_CHIP(kcontrol->private_value); |
453 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
454 | int shift = AK_GET_SHIFT(kcontrol->private_value); | |
cb9d24e4 TI |
455 | ucontrol->value.enumerated.item[0] = |
456 | (snd_akm4xxx_get(ak, chip, addr) >> shift) & 3; | |
1da177e4 LT |
457 | return 0; |
458 | } | |
459 | ||
97f02e05 TI |
460 | static int snd_akm4xxx_deemphasis_put(struct snd_kcontrol *kcontrol, |
461 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 462 | { |
97f02e05 | 463 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
464 | int chip = AK_GET_CHIP(kcontrol->private_value); |
465 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
466 | int shift = AK_GET_SHIFT(kcontrol->private_value); | |
467 | unsigned char nval = ucontrol->value.enumerated.item[0] & 3; | |
468 | int change; | |
469 | ||
cb9d24e4 TI |
470 | nval = (nval << shift) | |
471 | (snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift)); | |
1da177e4 LT |
472 | change = snd_akm4xxx_get(ak, chip, addr) != nval; |
473 | if (change) | |
474 | snd_akm4xxx_write(ak, chip, addr, nval); | |
475 | return change; | |
476 | } | |
477 | ||
a5ce8890 | 478 | #define ak4xxx_switch_info snd_ctl_boolean_mono_info |
30ba6e20 JV |
479 | |
480 | static int ak4xxx_switch_get(struct snd_kcontrol *kcontrol, | |
481 | struct snd_ctl_elem_value *ucontrol) | |
482 | { | |
483 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); | |
484 | int chip = AK_GET_CHIP(kcontrol->private_value); | |
485 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
486 | int shift = AK_GET_SHIFT(kcontrol->private_value); | |
487 | int invert = AK_GET_INVERT(kcontrol->private_value); | |
ea7cfcdf PH |
488 | /* we observe the (1<<shift) bit only */ |
489 | unsigned char val = snd_akm4xxx_get(ak, chip, addr) & (1<<shift); | |
30ba6e20 JV |
490 | if (invert) |
491 | val = ! val; | |
492 | ucontrol->value.integer.value[0] = (val & (1<<shift)) != 0; | |
493 | return 0; | |
494 | } | |
495 | ||
496 | static int ak4xxx_switch_put(struct snd_kcontrol *kcontrol, | |
497 | struct snd_ctl_elem_value *ucontrol) | |
498 | { | |
499 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); | |
500 | int chip = AK_GET_CHIP(kcontrol->private_value); | |
501 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
502 | int shift = AK_GET_SHIFT(kcontrol->private_value); | |
503 | int invert = AK_GET_INVERT(kcontrol->private_value); | |
504 | long flag = ucontrol->value.integer.value[0]; | |
505 | unsigned char val, oval; | |
506 | int change; | |
507 | ||
508 | if (invert) | |
509 | flag = ! flag; | |
510 | oval = snd_akm4xxx_get(ak, chip, addr); | |
511 | if (flag) | |
512 | val = oval | (1<<shift); | |
513 | else | |
514 | val = oval & ~(1<<shift); | |
515 | change = (oval != val); | |
516 | if (change) | |
517 | snd_akm4xxx_write(ak, chip, addr, val); | |
518 | return change; | |
519 | } | |
520 | ||
a58e7cb1 JV |
521 | #define AK5365_NUM_INPUTS 5 |
522 | ||
02ff1324 TI |
523 | static int ak4xxx_capture_num_inputs(struct snd_akm4xxx *ak, int mixer_ch) |
524 | { | |
525 | int num_names; | |
526 | const char **input_names; | |
527 | ||
528 | input_names = ak->adc_info[mixer_ch].input_names; | |
529 | num_names = 0; | |
530 | while (num_names < AK5365_NUM_INPUTS && input_names[num_names]) | |
531 | ++num_names; | |
532 | return num_names; | |
533 | } | |
534 | ||
a58e7cb1 JV |
535 | static int ak4xxx_capture_source_info(struct snd_kcontrol *kcontrol, |
536 | struct snd_ctl_elem_info *uinfo) | |
537 | { | |
538 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); | |
539 | int mixer_ch = AK_GET_SHIFT(kcontrol->private_value); | |
540 | const char **input_names; | |
541 | int num_names, idx; | |
542 | ||
02ff1324 TI |
543 | num_names = ak4xxx_capture_num_inputs(ak, mixer_ch); |
544 | if (!num_names) | |
545 | return -EINVAL; | |
a58e7cb1 JV |
546 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
547 | uinfo->count = 1; | |
548 | uinfo->value.enumerated.items = num_names; | |
549 | idx = uinfo->value.enumerated.item; | |
550 | if (idx >= num_names) | |
551 | return -EINVAL; | |
02ff1324 | 552 | input_names = ak->adc_info[mixer_ch].input_names; |
a58e7cb1 JV |
553 | strncpy(uinfo->value.enumerated.name, input_names[idx], |
554 | sizeof(uinfo->value.enumerated.name)); | |
555 | return 0; | |
556 | } | |
557 | ||
558 | static int ak4xxx_capture_source_get(struct snd_kcontrol *kcontrol, | |
559 | struct snd_ctl_elem_value *ucontrol) | |
560 | { | |
561 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); | |
562 | int chip = AK_GET_CHIP(kcontrol->private_value); | |
563 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
564 | int mask = AK_GET_MASK(kcontrol->private_value); | |
565 | unsigned char val; | |
566 | ||
567 | val = snd_akm4xxx_get(ak, chip, addr) & mask; | |
568 | ucontrol->value.enumerated.item[0] = val; | |
569 | return 0; | |
570 | } | |
571 | ||
572 | static int ak4xxx_capture_source_put(struct snd_kcontrol *kcontrol, | |
573 | struct snd_ctl_elem_value *ucontrol) | |
574 | { | |
575 | struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); | |
02ff1324 | 576 | int mixer_ch = AK_GET_SHIFT(kcontrol->private_value); |
a58e7cb1 JV |
577 | int chip = AK_GET_CHIP(kcontrol->private_value); |
578 | int addr = AK_GET_ADDR(kcontrol->private_value); | |
579 | int mask = AK_GET_MASK(kcontrol->private_value); | |
580 | unsigned char oval, val; | |
02ff1324 TI |
581 | int num_names = ak4xxx_capture_num_inputs(ak, mixer_ch); |
582 | ||
583 | if (ucontrol->value.enumerated.item[0] >= num_names) | |
584 | return -EINVAL; | |
a58e7cb1 JV |
585 | |
586 | oval = snd_akm4xxx_get(ak, chip, addr); | |
587 | val = oval & ~mask; | |
588 | val |= ucontrol->value.enumerated.item[0] & mask; | |
589 | if (val != oval) { | |
590 | snd_akm4xxx_write(ak, chip, addr, val); | |
591 | return 1; | |
592 | } | |
593 | return 0; | |
594 | } | |
595 | ||
1da177e4 LT |
596 | /* |
597 | * build AK4xxx controls | |
598 | */ | |
599 | ||
723b2b0d | 600 | static int build_dac_controls(struct snd_akm4xxx *ak) |
1da177e4 | 601 | { |
723b2b0d TI |
602 | int idx, err, mixer_ch, num_stereo; |
603 | struct snd_kcontrol_new knew; | |
1da177e4 | 604 | |
723b2b0d | 605 | mixer_ch = 0; |
c83c0c47 | 606 | for (idx = 0; idx < ak->num_dacs; ) { |
ea7cfcdf PH |
607 | /* mute control for Revolution 7.1 - AK4381 */ |
608 | if (ak->type == SND_AK4381 | |
609 | && ak->dac_info[mixer_ch].switch_name) { | |
610 | memset(&knew, 0, sizeof(knew)); | |
611 | knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; | |
612 | knew.count = 1; | |
613 | knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
614 | knew.name = ak->dac_info[mixer_ch].switch_name; | |
615 | knew.info = ak4xxx_switch_info; | |
616 | knew.get = ak4xxx_switch_get; | |
617 | knew.put = ak4xxx_switch_put; | |
618 | knew.access = 0; | |
619 | /* register 1, bit 0 (SMUTE): 0 = normal operation, | |
620 | 1 = mute */ | |
621 | knew.private_value = | |
622 | AK_COMPOSE(idx/2, 1, 0, 0) | AK_INVERT; | |
623 | err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); | |
624 | if (err < 0) | |
625 | return err; | |
626 | } | |
723b2b0d TI |
627 | memset(&knew, 0, sizeof(knew)); |
628 | if (! ak->dac_info || ! ak->dac_info[mixer_ch].name) { | |
629 | knew.name = "DAC Volume"; | |
630 | knew.index = mixer_ch + ak->idx_offset * 2; | |
c83c0c47 | 631 | num_stereo = 1; |
c83c0c47 | 632 | } else { |
723b2b0d TI |
633 | knew.name = ak->dac_info[mixer_ch].name; |
634 | num_stereo = ak->dac_info[mixer_ch].num_channels; | |
c83c0c47 | 635 | } |
723b2b0d TI |
636 | knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; |
637 | knew.count = 1; | |
638 | knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | | |
639 | SNDRV_CTL_ELEM_ACCESS_TLV_READ; | |
c83c0c47 | 640 | if (num_stereo == 2) { |
723b2b0d TI |
641 | knew.info = snd_akm4xxx_stereo_volume_info; |
642 | knew.get = snd_akm4xxx_stereo_volume_get; | |
643 | knew.put = snd_akm4xxx_stereo_volume_put; | |
c83c0c47 | 644 | } else { |
723b2b0d TI |
645 | knew.info = snd_akm4xxx_volume_info; |
646 | knew.get = snd_akm4xxx_volume_get; | |
647 | knew.put = snd_akm4xxx_volume_put; | |
c83c0c47 | 648 | } |
1da177e4 LT |
649 | switch (ak->type) { |
650 | case SND_AK4524: | |
cb9d24e4 | 651 | /* register 6 & 7 */ |
723b2b0d TI |
652 | knew.private_value = |
653 | AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127) | | |
654 | AK_VOL_CVT; | |
655 | knew.tlv.p = db_scale_vol_datt; | |
1da177e4 LT |
656 | break; |
657 | case SND_AK4528: | |
cb9d24e4 | 658 | /* register 4 & 5 */ |
723b2b0d TI |
659 | knew.private_value = |
660 | AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127) | | |
661 | AK_VOL_CVT; | |
662 | knew.tlv.p = db_scale_vol_datt; | |
1da177e4 LT |
663 | break; |
664 | case SND_AK4529: { | |
cb9d24e4 TI |
665 | /* registers 2-7 and b,c */ |
666 | int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb; | |
723b2b0d | 667 | knew.private_value = |
cb9d24e4 | 668 | AK_COMPOSE(0, val, 0, 255) | AK_INVERT; |
723b2b0d | 669 | knew.tlv.p = db_scale_8bit; |
1da177e4 LT |
670 | break; |
671 | } | |
672 | case SND_AK4355: | |
cb9d24e4 | 673 | /* register 4-9, chip #0 only */ |
723b2b0d TI |
674 | knew.private_value = AK_COMPOSE(0, idx + 4, 0, 255); |
675 | knew.tlv.p = db_scale_8bit; | |
1da177e4 | 676 | break; |
3479307f JV |
677 | case SND_AK4358: { |
678 | /* register 4-9 and 11-12, chip #0 only */ | |
679 | int addr = idx < 6 ? idx + 4 : idx + 5; | |
723b2b0d | 680 | knew.private_value = |
3479307f | 681 | AK_COMPOSE(0, addr, 0, 127) | AK_NEEDSMSB; |
723b2b0d | 682 | knew.tlv.p = db_scale_7bit; |
1da177e4 | 683 | break; |
3479307f | 684 | } |
1da177e4 | 685 | case SND_AK4381: |
cb9d24e4 | 686 | /* register 3 & 4 */ |
723b2b0d | 687 | knew.private_value = |
cb9d24e4 | 688 | AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255); |
723b2b0d | 689 | knew.tlv.p = db_scale_linear; |
1da177e4 LT |
690 | break; |
691 | default: | |
723b2b0d | 692 | return -EINVAL; |
1da177e4 | 693 | } |
c83c0c47 | 694 | |
723b2b0d | 695 | err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); |
cb9d24e4 | 696 | if (err < 0) |
723b2b0d | 697 | return err; |
c83c0c47 JA |
698 | |
699 | idx += num_stereo; | |
700 | mixer_ch++; | |
1da177e4 | 701 | } |
723b2b0d TI |
702 | return 0; |
703 | } | |
704 | ||
705 | static int build_adc_controls(struct snd_akm4xxx *ak) | |
706 | { | |
707 | int idx, err, mixer_ch, num_stereo; | |
708 | struct snd_kcontrol_new knew; | |
709 | ||
710 | mixer_ch = 0; | |
711 | for (idx = 0; idx < ak->num_adcs;) { | |
712 | memset(&knew, 0, sizeof(knew)); | |
713 | if (! ak->adc_info || ! ak->adc_info[mixer_ch].name) { | |
714 | knew.name = "ADC Volume"; | |
715 | knew.index = mixer_ch + ak->idx_offset * 2; | |
716 | num_stereo = 1; | |
717 | } else { | |
718 | knew.name = ak->adc_info[mixer_ch].name; | |
719 | num_stereo = ak->adc_info[mixer_ch].num_channels; | |
720 | } | |
721 | knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; | |
722 | knew.count = 1; | |
723 | knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | | |
724 | SNDRV_CTL_ELEM_ACCESS_TLV_READ; | |
725 | if (num_stereo == 2) { | |
726 | knew.info = snd_akm4xxx_stereo_volume_info; | |
727 | knew.get = snd_akm4xxx_stereo_volume_get; | |
728 | knew.put = snd_akm4xxx_stereo_volume_put; | |
729 | } else { | |
730 | knew.info = snd_akm4xxx_volume_info; | |
731 | knew.get = snd_akm4xxx_volume_get; | |
732 | knew.put = snd_akm4xxx_volume_put; | |
733 | } | |
cb9d24e4 | 734 | /* register 4 & 5 */ |
854b66e4 TI |
735 | if (ak->type == SND_AK5365) |
736 | knew.private_value = | |
737 | AK_COMPOSE(idx/2, (idx%2) + 4, 0, 151) | | |
738 | AK_VOL_CVT | AK_IPGA; | |
683fe153 | 739 | else |
854b66e4 TI |
740 | knew.private_value = |
741 | AK_COMPOSE(idx/2, (idx%2) + 4, 0, 163) | | |
742 | AK_VOL_CVT | AK_IPGA; | |
743 | knew.tlv.p = db_scale_vol_datt; | |
723b2b0d | 744 | err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); |
683fe153 | 745 | if (err < 0) |
723b2b0d TI |
746 | return err; |
747 | ||
748 | if (ak->type == SND_AK5365 && (idx % 2) == 0) { | |
749 | if (! ak->adc_info || | |
a58e7cb1 | 750 | ! ak->adc_info[mixer_ch].switch_name) { |
723b2b0d | 751 | knew.name = "Capture Switch"; |
a58e7cb1 JV |
752 | knew.index = mixer_ch + ak->idx_offset * 2; |
753 | } else | |
723b2b0d TI |
754 | knew.name = ak->adc_info[mixer_ch].switch_name; |
755 | knew.info = ak4xxx_switch_info; | |
756 | knew.get = ak4xxx_switch_get; | |
757 | knew.put = ak4xxx_switch_put; | |
758 | knew.access = 0; | |
759 | /* register 2, bit 0 (SMUTE): 0 = normal operation, | |
760 | 1 = mute */ | |
761 | knew.private_value = | |
762 | AK_COMPOSE(idx/2, 2, 0, 0) | AK_INVERT; | |
763 | err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); | |
764 | if (err < 0) | |
765 | return err; | |
a58e7cb1 JV |
766 | |
767 | memset(&knew, 0, sizeof(knew)); | |
768 | knew.name = ak->adc_info[mixer_ch].selector_name; | |
769 | if (!knew.name) { | |
770 | knew.name = "Capture Channel"; | |
771 | knew.index = mixer_ch + ak->idx_offset * 2; | |
772 | } | |
773 | ||
774 | knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; | |
775 | knew.info = ak4xxx_capture_source_info; | |
776 | knew.get = ak4xxx_capture_source_get; | |
777 | knew.put = ak4xxx_capture_source_put; | |
778 | knew.access = 0; | |
779 | /* input selector control: reg. 1, bits 0-2. | |
780 | * mis-use 'shift' to pass mixer_ch */ | |
781 | knew.private_value | |
782 | = AK_COMPOSE(idx/2, 1, mixer_ch, 0x07); | |
783 | err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); | |
784 | if (err < 0) | |
785 | return err; | |
723b2b0d | 786 | } |
30ba6e20 | 787 | |
723b2b0d TI |
788 | idx += num_stereo; |
789 | mixer_ch++; | |
683fe153 | 790 | } |
723b2b0d TI |
791 | return 0; |
792 | } | |
793 | ||
794 | static int build_deemphasis(struct snd_akm4xxx *ak, int num_emphs) | |
795 | { | |
796 | int idx, err; | |
797 | struct snd_kcontrol_new knew; | |
683fe153 | 798 | |
1da177e4 | 799 | for (idx = 0; idx < num_emphs; idx++) { |
723b2b0d TI |
800 | memset(&knew, 0, sizeof(knew)); |
801 | knew.name = "Deemphasis"; | |
802 | knew.index = idx + ak->idx_offset; | |
803 | knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; | |
804 | knew.count = 1; | |
805 | knew.info = snd_akm4xxx_deemphasis_info; | |
806 | knew.get = snd_akm4xxx_deemphasis_get; | |
807 | knew.put = snd_akm4xxx_deemphasis_put; | |
1da177e4 LT |
808 | switch (ak->type) { |
809 | case SND_AK4524: | |
810 | case SND_AK4528: | |
cb9d24e4 | 811 | /* register 3 */ |
723b2b0d | 812 | knew.private_value = AK_COMPOSE(idx, 3, 0, 0); |
1da177e4 LT |
813 | break; |
814 | case SND_AK4529: { | |
815 | int shift = idx == 3 ? 6 : (2 - idx) * 2; | |
cb9d24e4 | 816 | /* register 8 with shift */ |
723b2b0d | 817 | knew.private_value = AK_COMPOSE(0, 8, shift, 0); |
1da177e4 LT |
818 | break; |
819 | } | |
820 | case SND_AK4355: | |
821 | case SND_AK4358: | |
723b2b0d | 822 | knew.private_value = AK_COMPOSE(idx, 3, 0, 0); |
1da177e4 LT |
823 | break; |
824 | case SND_AK4381: | |
723b2b0d | 825 | knew.private_value = AK_COMPOSE(idx, 1, 1, 0); |
1da177e4 | 826 | break; |
cf93907b | 827 | default: |
723b2b0d | 828 | return -EINVAL; |
1da177e4 | 829 | } |
723b2b0d | 830 | err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); |
cb9d24e4 | 831 | if (err < 0) |
723b2b0d | 832 | return err; |
1da177e4 | 833 | } |
723b2b0d | 834 | return 0; |
1da177e4 LT |
835 | } |
836 | ||
723b2b0d TI |
837 | int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak) |
838 | { | |
839 | int err, num_emphs; | |
840 | ||
841 | err = build_dac_controls(ak); | |
842 | if (err < 0) | |
843 | return err; | |
844 | ||
854b66e4 TI |
845 | err = build_adc_controls(ak); |
846 | if (err < 0) | |
847 | return err; | |
723b2b0d TI |
848 | |
849 | if (ak->type == SND_AK4355 || ak->type == SND_AK4358) | |
850 | num_emphs = 1; | |
851 | else | |
852 | num_emphs = ak->num_dacs / 2; | |
853 | err = build_deemphasis(ak, num_emphs); | |
854 | if (err < 0) | |
855 | return err; | |
856 | ||
857 | return 0; | |
858 | } | |
859 | ||
cb9d24e4 TI |
860 | EXPORT_SYMBOL(snd_akm4xxx_build_controls); |
861 | ||
1da177e4 LT |
862 | static int __init alsa_akm4xxx_module_init(void) |
863 | { | |
864 | return 0; | |
865 | } | |
866 | ||
867 | static void __exit alsa_akm4xxx_module_exit(void) | |
868 | { | |
869 | } | |
870 | ||
871 | module_init(alsa_akm4xxx_module_init) | |
872 | module_exit(alsa_akm4xxx_module_exit) |