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f3d9478b JB |
1 | /* |
2 | * Apple Onboard Audio driver for tas codec | |
3 | * | |
4 | * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> | |
5 | * | |
6 | * GPL v2, can be found in COPYING. | |
7 | * | |
8 | * Open questions: | |
9 | * - How to distinguish between 3004 and versions? | |
10 | * | |
11 | * FIXMEs: | |
12 | * - This codec driver doesn't honour the 'connected' | |
13 | * property of the aoa_codec struct, hence if | |
14 | * it is used in machines where not everything is | |
15 | * connected it will display wrong mixer elements. | |
16 | * - Driver assumes that the microphone is always | |
17 | * monaureal and connected to the right channel of | |
18 | * the input. This should also be a codec-dependent | |
19 | * flag, maybe the codec should have 3 different | |
20 | * bits for the three different possibilities how | |
21 | * it can be hooked up... | |
22 | * But as long as I don't see any hardware hooked | |
23 | * up that way... | |
24 | * - As Apple notes in their code, the tas3004 seems | |
25 | * to delay the right channel by one sample. You can | |
26 | * see this when for example recording stereo in | |
27 | * audacity, or recording the tas output via cable | |
28 | * on another machine (use a sinus generator or so). | |
29 | * I tried programming the BiQuads but couldn't | |
30 | * make the delay work, maybe someone can read the | |
31 | * datasheet and fix it. The relevant Apple comment | |
32 | * is in AppleTAS3004Audio.cpp lines 1637 ff. Note | |
33 | * that their comment describing how they program | |
34 | * the filters sucks... | |
35 | * | |
36 | * Other things: | |
37 | * - this should actually register *two* aoa_codec | |
38 | * structs since it has two inputs. Then it must | |
39 | * use the prepare callback to forbid running the | |
40 | * secondary output on a different clock. | |
41 | * Also, whatever bus knows how to do this must | |
42 | * provide two soundbus_dev devices and the fabric | |
43 | * must be able to link them correctly. | |
44 | * | |
45 | * I don't even know if Apple ever uses the second | |
46 | * port on the tas3004 though, I don't think their | |
47 | * i2s controllers can even do it. OTOH, they all | |
48 | * derive the clocks from common clocks, so it | |
49 | * might just be possible. The framework allows the | |
50 | * codec to refine the transfer_info items in the | |
51 | * usable callback, so we can simply remove the | |
52 | * rates the second instance is not using when it | |
53 | * actually is in use. | |
54 | * Maybe we'll need to make the sound busses have | |
55 | * a 'clock group id' value so the codec can | |
56 | * determine if the two outputs can be driven at | |
57 | * the same time. But that is likely overkill, up | |
58 | * to the fabric to not link them up incorrectly, | |
59 | * and up to the hardware designer to not wire | |
60 | * them up in some weird unusable way. | |
61 | */ | |
62 | #include <stddef.h> | |
63 | #include <linux/i2c.h> | |
f3d9478b JB |
64 | #include <asm/pmac_low_i2c.h> |
65 | #include <asm/prom.h> | |
66 | #include <linux/delay.h> | |
67 | #include <linux/module.h> | |
30719206 JB |
68 | #include <linux/mutex.h> |
69 | ||
f3d9478b JB |
70 | MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>"); |
71 | MODULE_LICENSE("GPL"); | |
72 | MODULE_DESCRIPTION("tas codec driver for snd-aoa"); | |
73 | ||
888dcb7c JB |
74 | #include "tas.h" |
75 | #include "tas-gain-table.h" | |
76 | #include "tas-basstreble.h" | |
f3d9478b JB |
77 | #include "../aoa.h" |
78 | #include "../soundbus/soundbus.h" | |
79 | ||
f3d9478b JB |
80 | #define PFX "snd-aoa-codec-tas: " |
81 | ||
6a4f5787 | 82 | |
f3d9478b JB |
83 | struct tas { |
84 | struct aoa_codec codec; | |
cfbf1eec | 85 | struct i2c_client *i2c; |
6a4f5787 BH |
86 | u32 mute_l:1, mute_r:1 , |
87 | controls_created:1 , | |
88 | drc_enabled:1, | |
89 | hw_enabled:1; | |
f3d9478b JB |
90 | u8 cached_volume_l, cached_volume_r; |
91 | u8 mixer_l[3], mixer_r[3]; | |
50099328 | 92 | u8 bass, treble; |
f3d9478b | 93 | u8 acr; |
6a4f5787 | 94 | int drc_range; |
30719206 JB |
95 | /* protects hardware access against concurrency from |
96 | * userspace when hitting controls and during | |
97 | * codec init/suspend/resume */ | |
98 | struct mutex mtx; | |
f3d9478b JB |
99 | }; |
100 | ||
6a4f5787 BH |
101 | static int tas_reset_init(struct tas *tas); |
102 | ||
f3d9478b JB |
103 | static struct tas *codec_to_tas(struct aoa_codec *codec) |
104 | { | |
105 | return container_of(codec, struct tas, codec); | |
106 | } | |
107 | ||
108 | static inline int tas_write_reg(struct tas *tas, u8 reg, u8 len, u8 *data) | |
109 | { | |
110 | if (len == 1) | |
cfbf1eec | 111 | return i2c_smbus_write_byte_data(tas->i2c, reg, *data); |
f3d9478b | 112 | else |
cfbf1eec | 113 | return i2c_smbus_write_i2c_block_data(tas->i2c, reg, len, data); |
f3d9478b JB |
114 | } |
115 | ||
6a4f5787 BH |
116 | static void tas3004_set_drc(struct tas *tas) |
117 | { | |
118 | unsigned char val[6]; | |
119 | ||
120 | if (tas->drc_enabled) | |
121 | val[0] = 0x50; /* 3:1 above threshold */ | |
122 | else | |
123 | val[0] = 0x51; /* disabled */ | |
124 | val[1] = 0x02; /* 1:1 below threshold */ | |
125 | if (tas->drc_range > 0xef) | |
126 | val[2] = 0xef; | |
127 | else if (tas->drc_range < 0) | |
128 | val[2] = 0x00; | |
129 | else | |
130 | val[2] = tas->drc_range; | |
131 | val[3] = 0xb0; | |
132 | val[4] = 0x60; | |
133 | val[5] = 0xa0; | |
134 | ||
135 | tas_write_reg(tas, TAS_REG_DRC, 6, val); | |
136 | } | |
137 | ||
50099328 JB |
138 | static void tas_set_treble(struct tas *tas) |
139 | { | |
140 | u8 tmp; | |
141 | ||
142 | tmp = tas3004_treble(tas->treble); | |
143 | tas_write_reg(tas, TAS_REG_TREBLE, 1, &tmp); | |
144 | } | |
145 | ||
146 | static void tas_set_bass(struct tas *tas) | |
147 | { | |
148 | u8 tmp; | |
149 | ||
150 | tmp = tas3004_bass(tas->bass); | |
151 | tas_write_reg(tas, TAS_REG_BASS, 1, &tmp); | |
152 | } | |
153 | ||
f3d9478b JB |
154 | static void tas_set_volume(struct tas *tas) |
155 | { | |
156 | u8 block[6]; | |
157 | int tmp; | |
158 | u8 left, right; | |
159 | ||
160 | left = tas->cached_volume_l; | |
161 | right = tas->cached_volume_r; | |
162 | ||
163 | if (left > 177) left = 177; | |
164 | if (right > 177) right = 177; | |
165 | ||
6a4f5787 BH |
166 | if (tas->mute_l) left = 0; |
167 | if (tas->mute_r) right = 0; | |
f3d9478b JB |
168 | |
169 | /* analysing the volume and mixer tables shows | |
170 | * that they are similar enough when we shift | |
171 | * the mixer table down by 4 bits. The error | |
172 | * is miniscule, in just one item the error | |
173 | * is 1, at a value of 0x07f17b (mixer table | |
174 | * value is 0x07f17a) */ | |
175 | tmp = tas_gaintable[left]; | |
176 | block[0] = tmp>>20; | |
177 | block[1] = tmp>>12; | |
178 | block[2] = tmp>>4; | |
179 | tmp = tas_gaintable[right]; | |
180 | block[3] = tmp>>20; | |
181 | block[4] = tmp>>12; | |
182 | block[5] = tmp>>4; | |
183 | tas_write_reg(tas, TAS_REG_VOL, 6, block); | |
184 | } | |
185 | ||
186 | static void tas_set_mixer(struct tas *tas) | |
187 | { | |
188 | u8 block[9]; | |
189 | int tmp, i; | |
190 | u8 val; | |
191 | ||
192 | for (i=0;i<3;i++) { | |
193 | val = tas->mixer_l[i]; | |
194 | if (val > 177) val = 177; | |
195 | tmp = tas_gaintable[val]; | |
196 | block[3*i+0] = tmp>>16; | |
197 | block[3*i+1] = tmp>>8; | |
198 | block[3*i+2] = tmp; | |
199 | } | |
200 | tas_write_reg(tas, TAS_REG_LMIX, 9, block); | |
201 | ||
202 | for (i=0;i<3;i++) { | |
203 | val = tas->mixer_r[i]; | |
204 | if (val > 177) val = 177; | |
205 | tmp = tas_gaintable[val]; | |
206 | block[3*i+0] = tmp>>16; | |
207 | block[3*i+1] = tmp>>8; | |
208 | block[3*i+2] = tmp; | |
209 | } | |
210 | tas_write_reg(tas, TAS_REG_RMIX, 9, block); | |
211 | } | |
212 | ||
213 | /* alsa stuff */ | |
214 | ||
215 | static int tas_dev_register(struct snd_device *dev) | |
216 | { | |
217 | return 0; | |
218 | } | |
219 | ||
220 | static struct snd_device_ops ops = { | |
221 | .dev_register = tas_dev_register, | |
222 | }; | |
223 | ||
224 | static int tas_snd_vol_info(struct snd_kcontrol *kcontrol, | |
225 | struct snd_ctl_elem_info *uinfo) | |
226 | { | |
227 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
228 | uinfo->count = 2; | |
229 | uinfo->value.integer.min = 0; | |
230 | uinfo->value.integer.max = 177; | |
231 | return 0; | |
232 | } | |
233 | ||
234 | static int tas_snd_vol_get(struct snd_kcontrol *kcontrol, | |
235 | struct snd_ctl_elem_value *ucontrol) | |
236 | { | |
237 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
238 | ||
30719206 | 239 | mutex_lock(&tas->mtx); |
f3d9478b JB |
240 | ucontrol->value.integer.value[0] = tas->cached_volume_l; |
241 | ucontrol->value.integer.value[1] = tas->cached_volume_r; | |
30719206 | 242 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
243 | return 0; |
244 | } | |
245 | ||
246 | static int tas_snd_vol_put(struct snd_kcontrol *kcontrol, | |
247 | struct snd_ctl_elem_value *ucontrol) | |
248 | { | |
249 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
250 | ||
498ade1a TI |
251 | if (ucontrol->value.integer.value[0] < 0 || |
252 | ucontrol->value.integer.value[0] > 177) | |
253 | return -EINVAL; | |
254 | if (ucontrol->value.integer.value[1] < 0 || | |
255 | ucontrol->value.integer.value[1] > 177) | |
256 | return -EINVAL; | |
257 | ||
30719206 | 258 | mutex_lock(&tas->mtx); |
f3d9478b | 259 | if (tas->cached_volume_l == ucontrol->value.integer.value[0] |
30719206 JB |
260 | && tas->cached_volume_r == ucontrol->value.integer.value[1]) { |
261 | mutex_unlock(&tas->mtx); | |
f3d9478b | 262 | return 0; |
30719206 | 263 | } |
f3d9478b JB |
264 | |
265 | tas->cached_volume_l = ucontrol->value.integer.value[0]; | |
266 | tas->cached_volume_r = ucontrol->value.integer.value[1]; | |
6a4f5787 BH |
267 | if (tas->hw_enabled) |
268 | tas_set_volume(tas); | |
30719206 | 269 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
270 | return 1; |
271 | } | |
272 | ||
273 | static struct snd_kcontrol_new volume_control = { | |
274 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
275 | .name = "Master Playback Volume", | |
276 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
277 | .info = tas_snd_vol_info, | |
278 | .get = tas_snd_vol_get, | |
279 | .put = tas_snd_vol_put, | |
280 | }; | |
281 | ||
a5ce8890 | 282 | #define tas_snd_mute_info snd_ctl_boolean_stereo_info |
f3d9478b JB |
283 | |
284 | static int tas_snd_mute_get(struct snd_kcontrol *kcontrol, | |
285 | struct snd_ctl_elem_value *ucontrol) | |
286 | { | |
287 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
288 | ||
30719206 | 289 | mutex_lock(&tas->mtx); |
6a4f5787 BH |
290 | ucontrol->value.integer.value[0] = !tas->mute_l; |
291 | ucontrol->value.integer.value[1] = !tas->mute_r; | |
30719206 | 292 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
293 | return 0; |
294 | } | |
295 | ||
296 | static int tas_snd_mute_put(struct snd_kcontrol *kcontrol, | |
297 | struct snd_ctl_elem_value *ucontrol) | |
298 | { | |
299 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
300 | ||
30719206 | 301 | mutex_lock(&tas->mtx); |
6a4f5787 | 302 | if (tas->mute_l == !ucontrol->value.integer.value[0] |
30719206 JB |
303 | && tas->mute_r == !ucontrol->value.integer.value[1]) { |
304 | mutex_unlock(&tas->mtx); | |
f3d9478b | 305 | return 0; |
30719206 | 306 | } |
f3d9478b | 307 | |
6a4f5787 BH |
308 | tas->mute_l = !ucontrol->value.integer.value[0]; |
309 | tas->mute_r = !ucontrol->value.integer.value[1]; | |
310 | if (tas->hw_enabled) | |
311 | tas_set_volume(tas); | |
30719206 | 312 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
313 | return 1; |
314 | } | |
315 | ||
316 | static struct snd_kcontrol_new mute_control = { | |
317 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
318 | .name = "Master Playback Switch", | |
319 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
320 | .info = tas_snd_mute_info, | |
321 | .get = tas_snd_mute_get, | |
322 | .put = tas_snd_mute_put, | |
323 | }; | |
324 | ||
325 | static int tas_snd_mixer_info(struct snd_kcontrol *kcontrol, | |
326 | struct snd_ctl_elem_info *uinfo) | |
327 | { | |
328 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
329 | uinfo->count = 2; | |
330 | uinfo->value.integer.min = 0; | |
331 | uinfo->value.integer.max = 177; | |
332 | return 0; | |
333 | } | |
334 | ||
335 | static int tas_snd_mixer_get(struct snd_kcontrol *kcontrol, | |
336 | struct snd_ctl_elem_value *ucontrol) | |
337 | { | |
338 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
339 | int idx = kcontrol->private_value; | |
340 | ||
30719206 | 341 | mutex_lock(&tas->mtx); |
f3d9478b JB |
342 | ucontrol->value.integer.value[0] = tas->mixer_l[idx]; |
343 | ucontrol->value.integer.value[1] = tas->mixer_r[idx]; | |
30719206 | 344 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
345 | |
346 | return 0; | |
347 | } | |
348 | ||
349 | static int tas_snd_mixer_put(struct snd_kcontrol *kcontrol, | |
350 | struct snd_ctl_elem_value *ucontrol) | |
351 | { | |
352 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
353 | int idx = kcontrol->private_value; | |
354 | ||
30719206 | 355 | mutex_lock(&tas->mtx); |
f3d9478b | 356 | if (tas->mixer_l[idx] == ucontrol->value.integer.value[0] |
30719206 JB |
357 | && tas->mixer_r[idx] == ucontrol->value.integer.value[1]) { |
358 | mutex_unlock(&tas->mtx); | |
f3d9478b | 359 | return 0; |
30719206 | 360 | } |
f3d9478b JB |
361 | |
362 | tas->mixer_l[idx] = ucontrol->value.integer.value[0]; | |
363 | tas->mixer_r[idx] = ucontrol->value.integer.value[1]; | |
364 | ||
6a4f5787 BH |
365 | if (tas->hw_enabled) |
366 | tas_set_mixer(tas); | |
30719206 | 367 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
368 | return 1; |
369 | } | |
370 | ||
371 | #define MIXER_CONTROL(n,descr,idx) \ | |
372 | static struct snd_kcontrol_new n##_control = { \ | |
373 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ | |
374 | .name = descr " Playback Volume", \ | |
375 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ | |
376 | .info = tas_snd_mixer_info, \ | |
377 | .get = tas_snd_mixer_get, \ | |
378 | .put = tas_snd_mixer_put, \ | |
379 | .private_value = idx, \ | |
380 | } | |
381 | ||
14b42963 | 382 | MIXER_CONTROL(pcm1, "PCM", 0); |
f3d9478b JB |
383 | MIXER_CONTROL(monitor, "Monitor", 2); |
384 | ||
9b8f52f5 JB |
385 | static int tas_snd_drc_range_info(struct snd_kcontrol *kcontrol, |
386 | struct snd_ctl_elem_info *uinfo) | |
387 | { | |
388 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
389 | uinfo->count = 1; | |
390 | uinfo->value.integer.min = 0; | |
391 | uinfo->value.integer.max = TAS3004_DRC_MAX; | |
392 | return 0; | |
393 | } | |
394 | ||
395 | static int tas_snd_drc_range_get(struct snd_kcontrol *kcontrol, | |
396 | struct snd_ctl_elem_value *ucontrol) | |
397 | { | |
398 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
399 | ||
30719206 | 400 | mutex_lock(&tas->mtx); |
9b8f52f5 | 401 | ucontrol->value.integer.value[0] = tas->drc_range; |
30719206 | 402 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
403 | return 0; |
404 | } | |
405 | ||
406 | static int tas_snd_drc_range_put(struct snd_kcontrol *kcontrol, | |
407 | struct snd_ctl_elem_value *ucontrol) | |
408 | { | |
409 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
410 | ||
498ade1a TI |
411 | if (ucontrol->value.integer.value[0] < 0 || |
412 | ucontrol->value.integer.value[0] > TAS3004_DRC_MAX) | |
413 | return -EINVAL; | |
414 | ||
30719206 JB |
415 | mutex_lock(&tas->mtx); |
416 | if (tas->drc_range == ucontrol->value.integer.value[0]) { | |
417 | mutex_unlock(&tas->mtx); | |
9b8f52f5 | 418 | return 0; |
30719206 | 419 | } |
9b8f52f5 JB |
420 | |
421 | tas->drc_range = ucontrol->value.integer.value[0]; | |
422 | if (tas->hw_enabled) | |
423 | tas3004_set_drc(tas); | |
30719206 | 424 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
425 | return 1; |
426 | } | |
427 | ||
428 | static struct snd_kcontrol_new drc_range_control = { | |
429 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
430 | .name = "DRC Range", | |
431 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
432 | .info = tas_snd_drc_range_info, | |
433 | .get = tas_snd_drc_range_get, | |
434 | .put = tas_snd_drc_range_put, | |
435 | }; | |
436 | ||
a5ce8890 | 437 | #define tas_snd_drc_switch_info snd_ctl_boolean_mono_info |
9b8f52f5 JB |
438 | |
439 | static int tas_snd_drc_switch_get(struct snd_kcontrol *kcontrol, | |
440 | struct snd_ctl_elem_value *ucontrol) | |
441 | { | |
442 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
443 | ||
30719206 | 444 | mutex_lock(&tas->mtx); |
9b8f52f5 | 445 | ucontrol->value.integer.value[0] = tas->drc_enabled; |
30719206 | 446 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
447 | return 0; |
448 | } | |
449 | ||
450 | static int tas_snd_drc_switch_put(struct snd_kcontrol *kcontrol, | |
451 | struct snd_ctl_elem_value *ucontrol) | |
452 | { | |
453 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
454 | ||
30719206 JB |
455 | mutex_lock(&tas->mtx); |
456 | if (tas->drc_enabled == ucontrol->value.integer.value[0]) { | |
457 | mutex_unlock(&tas->mtx); | |
9b8f52f5 | 458 | return 0; |
30719206 | 459 | } |
9b8f52f5 | 460 | |
498ade1a | 461 | tas->drc_enabled = !!ucontrol->value.integer.value[0]; |
9b8f52f5 JB |
462 | if (tas->hw_enabled) |
463 | tas3004_set_drc(tas); | |
30719206 | 464 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
465 | return 1; |
466 | } | |
467 | ||
468 | static struct snd_kcontrol_new drc_switch_control = { | |
469 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
470 | .name = "DRC Range Switch", | |
471 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
472 | .info = tas_snd_drc_switch_info, | |
473 | .get = tas_snd_drc_switch_get, | |
474 | .put = tas_snd_drc_switch_put, | |
475 | }; | |
476 | ||
f3d9478b JB |
477 | static int tas_snd_capture_source_info(struct snd_kcontrol *kcontrol, |
478 | struct snd_ctl_elem_info *uinfo) | |
479 | { | |
480 | static char *texts[] = { "Line-In", "Microphone" }; | |
481 | ||
482 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
483 | uinfo->count = 1; | |
484 | uinfo->value.enumerated.items = 2; | |
485 | if (uinfo->value.enumerated.item > 1) | |
486 | uinfo->value.enumerated.item = 1; | |
487 | strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); | |
488 | return 0; | |
489 | } | |
490 | ||
491 | static int tas_snd_capture_source_get(struct snd_kcontrol *kcontrol, | |
492 | struct snd_ctl_elem_value *ucontrol) | |
493 | { | |
494 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
495 | ||
30719206 | 496 | mutex_lock(&tas->mtx); |
f3d9478b | 497 | ucontrol->value.enumerated.item[0] = !!(tas->acr & TAS_ACR_INPUT_B); |
30719206 | 498 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
499 | return 0; |
500 | } | |
501 | ||
502 | static int tas_snd_capture_source_put(struct snd_kcontrol *kcontrol, | |
503 | struct snd_ctl_elem_value *ucontrol) | |
504 | { | |
505 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
30719206 JB |
506 | int oldacr; |
507 | ||
498ade1a TI |
508 | if (ucontrol->value.enumerated.item[0] > 1) |
509 | return -EINVAL; | |
30719206 JB |
510 | mutex_lock(&tas->mtx); |
511 | oldacr = tas->acr; | |
f3d9478b | 512 | |
80b8d5d6 PM |
513 | /* |
514 | * Despite what the data sheet says in one place, the | |
515 | * TAS_ACR_B_MONAUREAL bit forces mono output even when | |
516 | * input A (line in) is selected. | |
517 | */ | |
518 | tas->acr &= ~(TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL); | |
f3d9478b | 519 | if (ucontrol->value.enumerated.item[0]) |
80b8d5d6 PM |
520 | tas->acr |= TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL | |
521 | TAS_ACR_B_MON_SEL_RIGHT; | |
30719206 JB |
522 | if (oldacr == tas->acr) { |
523 | mutex_unlock(&tas->mtx); | |
f3d9478b | 524 | return 0; |
30719206 | 525 | } |
6a4f5787 BH |
526 | if (tas->hw_enabled) |
527 | tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr); | |
30719206 | 528 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
529 | return 1; |
530 | } | |
531 | ||
532 | static struct snd_kcontrol_new capture_source_control = { | |
533 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
534 | /* If we name this 'Input Source', it properly shows up in | |
535 | * alsamixer as a selection, * but it's shown under the | |
536 | * 'Playback' category. | |
537 | * If I name it 'Capture Source', it shows up in strange | |
538 | * ways (two bools of which one can be selected at a | |
539 | * time) but at least it's shown in the 'Capture' | |
540 | * category. | |
541 | * I was told that this was due to backward compatibility, | |
542 | * but I don't understand then why the mangling is *not* | |
543 | * done when I name it "Input Source"..... | |
544 | */ | |
545 | .name = "Capture Source", | |
546 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
547 | .info = tas_snd_capture_source_info, | |
548 | .get = tas_snd_capture_source_get, | |
549 | .put = tas_snd_capture_source_put, | |
550 | }; | |
551 | ||
50099328 JB |
552 | static int tas_snd_treble_info(struct snd_kcontrol *kcontrol, |
553 | struct snd_ctl_elem_info *uinfo) | |
554 | { | |
555 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
556 | uinfo->count = 1; | |
557 | uinfo->value.integer.min = TAS3004_TREBLE_MIN; | |
558 | uinfo->value.integer.max = TAS3004_TREBLE_MAX; | |
559 | return 0; | |
560 | } | |
561 | ||
562 | static int tas_snd_treble_get(struct snd_kcontrol *kcontrol, | |
563 | struct snd_ctl_elem_value *ucontrol) | |
564 | { | |
565 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
566 | ||
30719206 | 567 | mutex_lock(&tas->mtx); |
50099328 | 568 | ucontrol->value.integer.value[0] = tas->treble; |
30719206 | 569 | mutex_unlock(&tas->mtx); |
50099328 JB |
570 | return 0; |
571 | } | |
572 | ||
573 | static int tas_snd_treble_put(struct snd_kcontrol *kcontrol, | |
574 | struct snd_ctl_elem_value *ucontrol) | |
575 | { | |
576 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
577 | ||
498ade1a TI |
578 | if (ucontrol->value.integer.value[0] < TAS3004_TREBLE_MIN || |
579 | ucontrol->value.integer.value[0] > TAS3004_TREBLE_MAX) | |
580 | return -EINVAL; | |
30719206 JB |
581 | mutex_lock(&tas->mtx); |
582 | if (tas->treble == ucontrol->value.integer.value[0]) { | |
583 | mutex_unlock(&tas->mtx); | |
50099328 | 584 | return 0; |
30719206 | 585 | } |
50099328 JB |
586 | |
587 | tas->treble = ucontrol->value.integer.value[0]; | |
588 | if (tas->hw_enabled) | |
589 | tas_set_treble(tas); | |
30719206 | 590 | mutex_unlock(&tas->mtx); |
50099328 JB |
591 | return 1; |
592 | } | |
593 | ||
594 | static struct snd_kcontrol_new treble_control = { | |
595 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
596 | .name = "Treble", | |
597 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
598 | .info = tas_snd_treble_info, | |
599 | .get = tas_snd_treble_get, | |
600 | .put = tas_snd_treble_put, | |
601 | }; | |
602 | ||
603 | static int tas_snd_bass_info(struct snd_kcontrol *kcontrol, | |
604 | struct snd_ctl_elem_info *uinfo) | |
605 | { | |
606 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
607 | uinfo->count = 1; | |
608 | uinfo->value.integer.min = TAS3004_BASS_MIN; | |
609 | uinfo->value.integer.max = TAS3004_BASS_MAX; | |
610 | return 0; | |
611 | } | |
612 | ||
613 | static int tas_snd_bass_get(struct snd_kcontrol *kcontrol, | |
614 | struct snd_ctl_elem_value *ucontrol) | |
615 | { | |
616 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
617 | ||
30719206 | 618 | mutex_lock(&tas->mtx); |
50099328 | 619 | ucontrol->value.integer.value[0] = tas->bass; |
30719206 | 620 | mutex_unlock(&tas->mtx); |
50099328 JB |
621 | return 0; |
622 | } | |
623 | ||
624 | static int tas_snd_bass_put(struct snd_kcontrol *kcontrol, | |
625 | struct snd_ctl_elem_value *ucontrol) | |
626 | { | |
627 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
628 | ||
498ade1a TI |
629 | if (ucontrol->value.integer.value[0] < TAS3004_BASS_MIN || |
630 | ucontrol->value.integer.value[0] > TAS3004_BASS_MAX) | |
631 | return -EINVAL; | |
30719206 JB |
632 | mutex_lock(&tas->mtx); |
633 | if (tas->bass == ucontrol->value.integer.value[0]) { | |
634 | mutex_unlock(&tas->mtx); | |
50099328 | 635 | return 0; |
30719206 | 636 | } |
50099328 JB |
637 | |
638 | tas->bass = ucontrol->value.integer.value[0]; | |
639 | if (tas->hw_enabled) | |
640 | tas_set_bass(tas); | |
30719206 | 641 | mutex_unlock(&tas->mtx); |
50099328 JB |
642 | return 1; |
643 | } | |
644 | ||
645 | static struct snd_kcontrol_new bass_control = { | |
646 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
647 | .name = "Bass", | |
648 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
649 | .info = tas_snd_bass_info, | |
650 | .get = tas_snd_bass_get, | |
651 | .put = tas_snd_bass_put, | |
652 | }; | |
f3d9478b JB |
653 | |
654 | static struct transfer_info tas_transfers[] = { | |
655 | { | |
656 | /* input */ | |
c7d03bc2 | 657 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_BE, |
f3d9478b JB |
658 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, |
659 | .transfer_in = 1, | |
660 | }, | |
661 | { | |
662 | /* output */ | |
c7d03bc2 | 663 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_BE, |
f3d9478b JB |
664 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, |
665 | .transfer_in = 0, | |
666 | }, | |
667 | {} | |
668 | }; | |
669 | ||
670 | static int tas_usable(struct codec_info_item *cii, | |
671 | struct transfer_info *ti, | |
672 | struct transfer_info *out) | |
673 | { | |
674 | return 1; | |
675 | } | |
676 | ||
677 | static int tas_reset_init(struct tas *tas) | |
678 | { | |
679 | u8 tmp; | |
6a4f5787 BH |
680 | |
681 | tas->codec.gpio->methods->all_amps_off(tas->codec.gpio); | |
682 | msleep(5); | |
f3d9478b | 683 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0); |
6a4f5787 | 684 | msleep(5); |
f3d9478b | 685 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 1); |
6a4f5787 | 686 | msleep(20); |
f3d9478b | 687 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0); |
6a4f5787 BH |
688 | msleep(10); |
689 | tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio); | |
f3d9478b JB |
690 | |
691 | tmp = TAS_MCS_SCLK64 | TAS_MCS_SPORT_MODE_I2S | TAS_MCS_SPORT_WL_24BIT; | |
692 | if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp)) | |
30719206 | 693 | goto outerr; |
f3d9478b | 694 | |
80b8d5d6 | 695 | tas->acr |= TAS_ACR_ANALOG_PDOWN; |
6a4f5787 | 696 | if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr)) |
30719206 | 697 | goto outerr; |
6a4f5787 | 698 | |
f3d9478b JB |
699 | tmp = 0; |
700 | if (tas_write_reg(tas, TAS_REG_MCS2, 1, &tmp)) | |
30719206 | 701 | goto outerr; |
f3d9478b | 702 | |
6a4f5787 BH |
703 | tas3004_set_drc(tas); |
704 | ||
705 | /* Set treble & bass to 0dB */ | |
50099328 JB |
706 | tas->treble = TAS3004_TREBLE_ZERO; |
707 | tas->bass = TAS3004_BASS_ZERO; | |
708 | tas_set_treble(tas); | |
709 | tas_set_bass(tas); | |
6a4f5787 BH |
710 | |
711 | tas->acr &= ~TAS_ACR_ANALOG_PDOWN; | |
712 | if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr)) | |
30719206 | 713 | goto outerr; |
6a4f5787 BH |
714 | |
715 | return 0; | |
30719206 JB |
716 | outerr: |
717 | return -ENODEV; | |
6a4f5787 BH |
718 | } |
719 | ||
720 | static int tas_switch_clock(struct codec_info_item *cii, enum clock_switch clock) | |
721 | { | |
722 | struct tas *tas = cii->codec_data; | |
723 | ||
724 | switch(clock) { | |
725 | case CLOCK_SWITCH_PREPARE_SLAVE: | |
726 | /* Clocks are going away, mute mute mute */ | |
727 | tas->codec.gpio->methods->all_amps_off(tas->codec.gpio); | |
728 | tas->hw_enabled = 0; | |
729 | break; | |
730 | case CLOCK_SWITCH_SLAVE: | |
731 | /* Clocks are back, re-init the codec */ | |
30719206 | 732 | mutex_lock(&tas->mtx); |
6a4f5787 BH |
733 | tas_reset_init(tas); |
734 | tas_set_volume(tas); | |
735 | tas_set_mixer(tas); | |
736 | tas->hw_enabled = 1; | |
737 | tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio); | |
30719206 | 738 | mutex_unlock(&tas->mtx); |
6a4f5787 BH |
739 | break; |
740 | default: | |
741 | /* doesn't happen as of now */ | |
742 | return -EINVAL; | |
743 | } | |
f3d9478b JB |
744 | return 0; |
745 | } | |
746 | ||
1f28960b | 747 | #ifdef CONFIG_PM |
f3d9478b JB |
748 | /* we are controlled via i2c and assume that is always up |
749 | * If that wasn't the case, we'd have to suspend once | |
750 | * our i2c device is suspended, and then take note of that! */ | |
751 | static int tas_suspend(struct tas *tas) | |
752 | { | |
30719206 | 753 | mutex_lock(&tas->mtx); |
6a4f5787 | 754 | tas->hw_enabled = 0; |
f3d9478b JB |
755 | tas->acr |= TAS_ACR_ANALOG_PDOWN; |
756 | tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr); | |
30719206 | 757 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
758 | return 0; |
759 | } | |
760 | ||
761 | static int tas_resume(struct tas *tas) | |
762 | { | |
763 | /* reset codec */ | |
30719206 | 764 | mutex_lock(&tas->mtx); |
f3d9478b JB |
765 | tas_reset_init(tas); |
766 | tas_set_volume(tas); | |
767 | tas_set_mixer(tas); | |
6a4f5787 | 768 | tas->hw_enabled = 1; |
30719206 | 769 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
770 | return 0; |
771 | } | |
772 | ||
f3d9478b JB |
773 | static int _tas_suspend(struct codec_info_item *cii, pm_message_t state) |
774 | { | |
775 | return tas_suspend(cii->codec_data); | |
776 | } | |
777 | ||
778 | static int _tas_resume(struct codec_info_item *cii) | |
779 | { | |
780 | return tas_resume(cii->codec_data); | |
781 | } | |
1f28960b SR |
782 | #else /* CONFIG_PM */ |
783 | #define _tas_suspend NULL | |
784 | #define _tas_resume NULL | |
785 | #endif /* CONFIG_PM */ | |
f3d9478b JB |
786 | |
787 | static struct codec_info tas_codec_info = { | |
788 | .transfers = tas_transfers, | |
789 | /* in theory, we can drive it at 512 too... | |
790 | * but so far the framework doesn't allow | |
791 | * for that and I don't see much point in it. */ | |
792 | .sysclock_factor = 256, | |
793 | /* same here, could be 32 for just one 16 bit format */ | |
794 | .bus_factor = 64, | |
795 | .owner = THIS_MODULE, | |
796 | .usable = tas_usable, | |
6a4f5787 | 797 | .switch_clock = tas_switch_clock, |
f3d9478b JB |
798 | .suspend = _tas_suspend, |
799 | .resume = _tas_resume, | |
f3d9478b JB |
800 | }; |
801 | ||
802 | static int tas_init_codec(struct aoa_codec *codec) | |
803 | { | |
804 | struct tas *tas = codec_to_tas(codec); | |
805 | int err; | |
806 | ||
807 | if (!tas->codec.gpio || !tas->codec.gpio->methods) { | |
808 | printk(KERN_ERR PFX "gpios not assigned!!\n"); | |
809 | return -EINVAL; | |
810 | } | |
811 | ||
30719206 | 812 | mutex_lock(&tas->mtx); |
f3d9478b JB |
813 | if (tas_reset_init(tas)) { |
814 | printk(KERN_ERR PFX "tas failed to initialise\n"); | |
30719206 | 815 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
816 | return -ENXIO; |
817 | } | |
6a4f5787 | 818 | tas->hw_enabled = 1; |
30719206 | 819 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
820 | |
821 | if (tas->codec.soundbus_dev->attach_codec(tas->codec.soundbus_dev, | |
822 | aoa_get_card(), | |
823 | &tas_codec_info, tas)) { | |
824 | printk(KERN_ERR PFX "error attaching tas to soundbus\n"); | |
825 | return -ENODEV; | |
826 | } | |
827 | ||
828 | if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, tas, &ops)) { | |
829 | printk(KERN_ERR PFX "failed to create tas snd device!\n"); | |
830 | return -ENODEV; | |
831 | } | |
832 | err = aoa_snd_ctl_add(snd_ctl_new1(&volume_control, tas)); | |
833 | if (err) | |
834 | goto error; | |
835 | ||
836 | err = aoa_snd_ctl_add(snd_ctl_new1(&mute_control, tas)); | |
837 | if (err) | |
838 | goto error; | |
839 | ||
840 | err = aoa_snd_ctl_add(snd_ctl_new1(&pcm1_control, tas)); | |
841 | if (err) | |
842 | goto error; | |
843 | ||
844 | err = aoa_snd_ctl_add(snd_ctl_new1(&monitor_control, tas)); | |
845 | if (err) | |
846 | goto error; | |
847 | ||
848 | err = aoa_snd_ctl_add(snd_ctl_new1(&capture_source_control, tas)); | |
849 | if (err) | |
850 | goto error; | |
851 | ||
9b8f52f5 JB |
852 | err = aoa_snd_ctl_add(snd_ctl_new1(&drc_range_control, tas)); |
853 | if (err) | |
854 | goto error; | |
855 | ||
856 | err = aoa_snd_ctl_add(snd_ctl_new1(&drc_switch_control, tas)); | |
857 | if (err) | |
858 | goto error; | |
859 | ||
50099328 JB |
860 | err = aoa_snd_ctl_add(snd_ctl_new1(&treble_control, tas)); |
861 | if (err) | |
862 | goto error; | |
863 | ||
864 | err = aoa_snd_ctl_add(snd_ctl_new1(&bass_control, tas)); | |
865 | if (err) | |
866 | goto error; | |
867 | ||
f3d9478b JB |
868 | return 0; |
869 | error: | |
870 | tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas); | |
871 | snd_device_free(aoa_get_card(), tas); | |
872 | return err; | |
873 | } | |
874 | ||
875 | static void tas_exit_codec(struct aoa_codec *codec) | |
876 | { | |
877 | struct tas *tas = codec_to_tas(codec); | |
878 | ||
879 | if (!tas->codec.soundbus_dev) | |
880 | return; | |
881 | tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas); | |
882 | } | |
888dcb7c | 883 | |
f3d9478b | 884 | |
f3d9478b JB |
885 | static int tas_create(struct i2c_adapter *adapter, |
886 | struct device_node *node, | |
887 | int addr) | |
888 | { | |
cfbf1eec JD |
889 | struct i2c_board_info info; |
890 | struct i2c_client *client; | |
891 | ||
892 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
893 | strlcpy(info.type, "aoa_codec_tas", I2C_NAME_SIZE); | |
894 | info.addr = addr; | |
895 | info.platform_data = node; | |
896 | ||
897 | client = i2c_new_device(adapter, &info); | |
898 | if (!client) | |
899 | return -ENODEV; | |
900 | ||
901 | /* | |
902 | * Let i2c-core delete that device on driver removal. | |
903 | * This is safe because i2c-core holds the core_lock mutex for us. | |
904 | */ | |
905 | list_add_tail(&client->detected, &client->driver->clients); | |
906 | return 0; | |
907 | } | |
908 | ||
909 | static int tas_i2c_probe(struct i2c_client *client, | |
910 | const struct i2c_device_id *id) | |
911 | { | |
912 | struct device_node *node = client->dev.platform_data; | |
f3d9478b JB |
913 | struct tas *tas; |
914 | ||
915 | tas = kzalloc(sizeof(struct tas), GFP_KERNEL); | |
916 | ||
917 | if (!tas) | |
918 | return -ENOMEM; | |
919 | ||
30719206 | 920 | mutex_init(&tas->mtx); |
cfbf1eec JD |
921 | tas->i2c = client; |
922 | i2c_set_clientdata(client, tas); | |
923 | ||
9b8f52f5 JB |
924 | /* seems that half is a saner default */ |
925 | tas->drc_range = TAS3004_DRC_MAX / 2; | |
f3d9478b | 926 | |
023ff3ee | 927 | strlcpy(tas->codec.name, "tas", MAX_CODEC_NAME_LEN); |
f3d9478b JB |
928 | tas->codec.owner = THIS_MODULE; |
929 | tas->codec.init = tas_init_codec; | |
930 | tas->codec.exit = tas_exit_codec; | |
931 | tas->codec.node = of_node_get(node); | |
932 | ||
933 | if (aoa_codec_register(&tas->codec)) { | |
cfbf1eec | 934 | goto fail; |
f3d9478b | 935 | } |
6a4f5787 BH |
936 | printk(KERN_DEBUG |
937 | "snd-aoa-codec-tas: tas found, addr 0x%02x on %s\n", | |
cfbf1eec | 938 | (unsigned int)client->addr, node->full_name); |
f3d9478b | 939 | return 0; |
f3d9478b | 940 | fail: |
30719206 | 941 | mutex_destroy(&tas->mtx); |
f3d9478b JB |
942 | kfree(tas); |
943 | return -EINVAL; | |
944 | } | |
945 | ||
946 | static int tas_i2c_attach(struct i2c_adapter *adapter) | |
947 | { | |
948 | struct device_node *busnode, *dev = NULL; | |
949 | struct pmac_i2c_bus *bus; | |
950 | ||
951 | bus = pmac_i2c_adapter_to_bus(adapter); | |
952 | if (bus == NULL) | |
953 | return -ENODEV; | |
954 | busnode = pmac_i2c_get_bus_node(bus); | |
955 | ||
956 | while ((dev = of_get_next_child(busnode, dev)) != NULL) { | |
55b61fec | 957 | if (of_device_is_compatible(dev, "tas3004")) { |
a7edd0e6 | 958 | const u32 *addr; |
f3d9478b | 959 | printk(KERN_DEBUG PFX "found tas3004\n"); |
c4f55b39 | 960 | addr = of_get_property(dev, "reg", NULL); |
f3d9478b JB |
961 | if (!addr) |
962 | continue; | |
963 | return tas_create(adapter, dev, ((*addr) >> 1) & 0x7f); | |
964 | } | |
965 | /* older machines have no 'codec' node with a 'compatible' | |
966 | * property that says 'tas3004', they just have a 'deq' | |
967 | * node without any such property... */ | |
968 | if (strcmp(dev->name, "deq") == 0) { | |
a7edd0e6 SR |
969 | const u32 *_addr; |
970 | u32 addr; | |
f3d9478b | 971 | printk(KERN_DEBUG PFX "found 'deq' node\n"); |
c4f55b39 | 972 | _addr = of_get_property(dev, "i2c-address", NULL); |
f3d9478b JB |
973 | if (!_addr) |
974 | continue; | |
975 | addr = ((*_addr) >> 1) & 0x7f; | |
976 | /* now, if the address doesn't match any of the two | |
977 | * that a tas3004 can have, we cannot handle this. | |
978 | * I doubt it ever happens but hey. */ | |
979 | if (addr != 0x34 && addr != 0x35) | |
980 | continue; | |
981 | return tas_create(adapter, dev, addr); | |
982 | } | |
983 | } | |
984 | return -ENODEV; | |
985 | } | |
986 | ||
cfbf1eec | 987 | static int tas_i2c_remove(struct i2c_client *client) |
f3d9478b | 988 | { |
cfbf1eec | 989 | struct tas *tas = i2c_get_clientdata(client); |
f3d9478b JB |
990 | u8 tmp = TAS_ACR_ANALOG_PDOWN; |
991 | ||
f3d9478b JB |
992 | aoa_codec_unregister(&tas->codec); |
993 | of_node_put(tas->codec.node); | |
994 | ||
995 | /* power down codec chip */ | |
996 | tas_write_reg(tas, TAS_REG_ACR, 1, &tmp); | |
997 | ||
30719206 | 998 | mutex_destroy(&tas->mtx); |
f3d9478b JB |
999 | kfree(tas); |
1000 | return 0; | |
1001 | } | |
1002 | ||
cfbf1eec JD |
1003 | static const struct i2c_device_id tas_i2c_id[] = { |
1004 | { "aoa_codec_tas", 0 }, | |
1005 | { } | |
1006 | }; | |
1007 | ||
f3d9478b JB |
1008 | static struct i2c_driver tas_driver = { |
1009 | .driver = { | |
1010 | .name = "aoa_codec_tas", | |
1011 | .owner = THIS_MODULE, | |
1012 | }, | |
1013 | .attach_adapter = tas_i2c_attach, | |
cfbf1eec JD |
1014 | .probe = tas_i2c_probe, |
1015 | .remove = tas_i2c_remove, | |
1016 | .id_table = tas_i2c_id, | |
f3d9478b JB |
1017 | }; |
1018 | ||
1019 | static int __init tas_init(void) | |
1020 | { | |
1021 | return i2c_add_driver(&tas_driver); | |
1022 | } | |
1023 | ||
1024 | static void __exit tas_exit(void) | |
1025 | { | |
1026 | i2c_del_driver(&tas_driver); | |
1027 | } | |
1028 | ||
1029 | module_init(tas_init); | |
1030 | module_exit(tas_exit); |