Commit | Line | Data |
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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 | 68 | #include <linux/mutex.h> |
5a0e3ad6 | 69 | #include <linux/slab.h> |
30719206 | 70 | |
f3d9478b JB |
71 | MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>"); |
72 | MODULE_LICENSE("GPL"); | |
73 | MODULE_DESCRIPTION("tas codec driver for snd-aoa"); | |
74 | ||
888dcb7c JB |
75 | #include "tas.h" |
76 | #include "tas-gain-table.h" | |
77 | #include "tas-basstreble.h" | |
f3d9478b JB |
78 | #include "../aoa.h" |
79 | #include "../soundbus/soundbus.h" | |
80 | ||
f3d9478b JB |
81 | #define PFX "snd-aoa-codec-tas: " |
82 | ||
6a4f5787 | 83 | |
f3d9478b JB |
84 | struct tas { |
85 | struct aoa_codec codec; | |
cfbf1eec | 86 | struct i2c_client *i2c; |
6a4f5787 BH |
87 | u32 mute_l:1, mute_r:1 , |
88 | controls_created:1 , | |
89 | drc_enabled:1, | |
90 | hw_enabled:1; | |
f3d9478b JB |
91 | u8 cached_volume_l, cached_volume_r; |
92 | u8 mixer_l[3], mixer_r[3]; | |
50099328 | 93 | u8 bass, treble; |
f3d9478b | 94 | u8 acr; |
6a4f5787 | 95 | int drc_range; |
30719206 JB |
96 | /* protects hardware access against concurrency from |
97 | * userspace when hitting controls and during | |
98 | * codec init/suspend/resume */ | |
99 | struct mutex mtx; | |
f3d9478b JB |
100 | }; |
101 | ||
6a4f5787 BH |
102 | static int tas_reset_init(struct tas *tas); |
103 | ||
f3d9478b JB |
104 | static struct tas *codec_to_tas(struct aoa_codec *codec) |
105 | { | |
106 | return container_of(codec, struct tas, codec); | |
107 | } | |
108 | ||
109 | static inline int tas_write_reg(struct tas *tas, u8 reg, u8 len, u8 *data) | |
110 | { | |
111 | if (len == 1) | |
cfbf1eec | 112 | return i2c_smbus_write_byte_data(tas->i2c, reg, *data); |
f3d9478b | 113 | else |
cfbf1eec | 114 | return i2c_smbus_write_i2c_block_data(tas->i2c, reg, len, data); |
f3d9478b JB |
115 | } |
116 | ||
6a4f5787 BH |
117 | static void tas3004_set_drc(struct tas *tas) |
118 | { | |
119 | unsigned char val[6]; | |
120 | ||
121 | if (tas->drc_enabled) | |
122 | val[0] = 0x50; /* 3:1 above threshold */ | |
123 | else | |
124 | val[0] = 0x51; /* disabled */ | |
125 | val[1] = 0x02; /* 1:1 below threshold */ | |
126 | if (tas->drc_range > 0xef) | |
127 | val[2] = 0xef; | |
128 | else if (tas->drc_range < 0) | |
129 | val[2] = 0x00; | |
130 | else | |
131 | val[2] = tas->drc_range; | |
132 | val[3] = 0xb0; | |
133 | val[4] = 0x60; | |
134 | val[5] = 0xa0; | |
135 | ||
136 | tas_write_reg(tas, TAS_REG_DRC, 6, val); | |
137 | } | |
138 | ||
50099328 JB |
139 | static void tas_set_treble(struct tas *tas) |
140 | { | |
141 | u8 tmp; | |
142 | ||
143 | tmp = tas3004_treble(tas->treble); | |
144 | tas_write_reg(tas, TAS_REG_TREBLE, 1, &tmp); | |
145 | } | |
146 | ||
147 | static void tas_set_bass(struct tas *tas) | |
148 | { | |
149 | u8 tmp; | |
150 | ||
151 | tmp = tas3004_bass(tas->bass); | |
152 | tas_write_reg(tas, TAS_REG_BASS, 1, &tmp); | |
153 | } | |
154 | ||
f3d9478b JB |
155 | static void tas_set_volume(struct tas *tas) |
156 | { | |
157 | u8 block[6]; | |
158 | int tmp; | |
159 | u8 left, right; | |
160 | ||
161 | left = tas->cached_volume_l; | |
162 | right = tas->cached_volume_r; | |
163 | ||
164 | if (left > 177) left = 177; | |
165 | if (right > 177) right = 177; | |
166 | ||
6a4f5787 BH |
167 | if (tas->mute_l) left = 0; |
168 | if (tas->mute_r) right = 0; | |
f3d9478b JB |
169 | |
170 | /* analysing the volume and mixer tables shows | |
171 | * that they are similar enough when we shift | |
172 | * the mixer table down by 4 bits. The error | |
173 | * is miniscule, in just one item the error | |
174 | * is 1, at a value of 0x07f17b (mixer table | |
175 | * value is 0x07f17a) */ | |
176 | tmp = tas_gaintable[left]; | |
177 | block[0] = tmp>>20; | |
178 | block[1] = tmp>>12; | |
179 | block[2] = tmp>>4; | |
180 | tmp = tas_gaintable[right]; | |
181 | block[3] = tmp>>20; | |
182 | block[4] = tmp>>12; | |
183 | block[5] = tmp>>4; | |
184 | tas_write_reg(tas, TAS_REG_VOL, 6, block); | |
185 | } | |
186 | ||
187 | static void tas_set_mixer(struct tas *tas) | |
188 | { | |
189 | u8 block[9]; | |
190 | int tmp, i; | |
191 | u8 val; | |
192 | ||
193 | for (i=0;i<3;i++) { | |
194 | val = tas->mixer_l[i]; | |
195 | if (val > 177) val = 177; | |
196 | tmp = tas_gaintable[val]; | |
197 | block[3*i+0] = tmp>>16; | |
198 | block[3*i+1] = tmp>>8; | |
199 | block[3*i+2] = tmp; | |
200 | } | |
201 | tas_write_reg(tas, TAS_REG_LMIX, 9, block); | |
202 | ||
203 | for (i=0;i<3;i++) { | |
204 | val = tas->mixer_r[i]; | |
205 | if (val > 177) val = 177; | |
206 | tmp = tas_gaintable[val]; | |
207 | block[3*i+0] = tmp>>16; | |
208 | block[3*i+1] = tmp>>8; | |
209 | block[3*i+2] = tmp; | |
210 | } | |
211 | tas_write_reg(tas, TAS_REG_RMIX, 9, block); | |
212 | } | |
213 | ||
214 | /* alsa stuff */ | |
215 | ||
216 | static int tas_dev_register(struct snd_device *dev) | |
217 | { | |
218 | return 0; | |
219 | } | |
220 | ||
221 | static struct snd_device_ops ops = { | |
222 | .dev_register = tas_dev_register, | |
223 | }; | |
224 | ||
225 | static int tas_snd_vol_info(struct snd_kcontrol *kcontrol, | |
226 | struct snd_ctl_elem_info *uinfo) | |
227 | { | |
228 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
229 | uinfo->count = 2; | |
230 | uinfo->value.integer.min = 0; | |
231 | uinfo->value.integer.max = 177; | |
232 | return 0; | |
233 | } | |
234 | ||
235 | static int tas_snd_vol_get(struct snd_kcontrol *kcontrol, | |
236 | struct snd_ctl_elem_value *ucontrol) | |
237 | { | |
238 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
239 | ||
30719206 | 240 | mutex_lock(&tas->mtx); |
f3d9478b JB |
241 | ucontrol->value.integer.value[0] = tas->cached_volume_l; |
242 | ucontrol->value.integer.value[1] = tas->cached_volume_r; | |
30719206 | 243 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
244 | return 0; |
245 | } | |
246 | ||
247 | static int tas_snd_vol_put(struct snd_kcontrol *kcontrol, | |
248 | struct snd_ctl_elem_value *ucontrol) | |
249 | { | |
250 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
251 | ||
498ade1a TI |
252 | if (ucontrol->value.integer.value[0] < 0 || |
253 | ucontrol->value.integer.value[0] > 177) | |
254 | return -EINVAL; | |
255 | if (ucontrol->value.integer.value[1] < 0 || | |
256 | ucontrol->value.integer.value[1] > 177) | |
257 | return -EINVAL; | |
258 | ||
30719206 | 259 | mutex_lock(&tas->mtx); |
f3d9478b | 260 | if (tas->cached_volume_l == ucontrol->value.integer.value[0] |
30719206 JB |
261 | && tas->cached_volume_r == ucontrol->value.integer.value[1]) { |
262 | mutex_unlock(&tas->mtx); | |
f3d9478b | 263 | return 0; |
30719206 | 264 | } |
f3d9478b JB |
265 | |
266 | tas->cached_volume_l = ucontrol->value.integer.value[0]; | |
267 | tas->cached_volume_r = ucontrol->value.integer.value[1]; | |
6a4f5787 BH |
268 | if (tas->hw_enabled) |
269 | tas_set_volume(tas); | |
30719206 | 270 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
271 | return 1; |
272 | } | |
273 | ||
274 | static struct snd_kcontrol_new volume_control = { | |
275 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
276 | .name = "Master Playback Volume", | |
277 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
278 | .info = tas_snd_vol_info, | |
279 | .get = tas_snd_vol_get, | |
280 | .put = tas_snd_vol_put, | |
281 | }; | |
282 | ||
a5ce8890 | 283 | #define tas_snd_mute_info snd_ctl_boolean_stereo_info |
f3d9478b JB |
284 | |
285 | static int tas_snd_mute_get(struct snd_kcontrol *kcontrol, | |
286 | struct snd_ctl_elem_value *ucontrol) | |
287 | { | |
288 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
289 | ||
30719206 | 290 | mutex_lock(&tas->mtx); |
6a4f5787 BH |
291 | ucontrol->value.integer.value[0] = !tas->mute_l; |
292 | ucontrol->value.integer.value[1] = !tas->mute_r; | |
30719206 | 293 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
294 | return 0; |
295 | } | |
296 | ||
297 | static int tas_snd_mute_put(struct snd_kcontrol *kcontrol, | |
298 | struct snd_ctl_elem_value *ucontrol) | |
299 | { | |
300 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
301 | ||
30719206 | 302 | mutex_lock(&tas->mtx); |
6a4f5787 | 303 | if (tas->mute_l == !ucontrol->value.integer.value[0] |
30719206 JB |
304 | && tas->mute_r == !ucontrol->value.integer.value[1]) { |
305 | mutex_unlock(&tas->mtx); | |
f3d9478b | 306 | return 0; |
30719206 | 307 | } |
f3d9478b | 308 | |
6a4f5787 BH |
309 | tas->mute_l = !ucontrol->value.integer.value[0]; |
310 | tas->mute_r = !ucontrol->value.integer.value[1]; | |
311 | if (tas->hw_enabled) | |
312 | tas_set_volume(tas); | |
30719206 | 313 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
314 | return 1; |
315 | } | |
316 | ||
317 | static struct snd_kcontrol_new mute_control = { | |
318 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
319 | .name = "Master Playback Switch", | |
320 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
321 | .info = tas_snd_mute_info, | |
322 | .get = tas_snd_mute_get, | |
323 | .put = tas_snd_mute_put, | |
324 | }; | |
325 | ||
326 | static int tas_snd_mixer_info(struct snd_kcontrol *kcontrol, | |
327 | struct snd_ctl_elem_info *uinfo) | |
328 | { | |
329 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
330 | uinfo->count = 2; | |
331 | uinfo->value.integer.min = 0; | |
332 | uinfo->value.integer.max = 177; | |
333 | return 0; | |
334 | } | |
335 | ||
336 | static int tas_snd_mixer_get(struct snd_kcontrol *kcontrol, | |
337 | struct snd_ctl_elem_value *ucontrol) | |
338 | { | |
339 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
340 | int idx = kcontrol->private_value; | |
341 | ||
30719206 | 342 | mutex_lock(&tas->mtx); |
f3d9478b JB |
343 | ucontrol->value.integer.value[0] = tas->mixer_l[idx]; |
344 | ucontrol->value.integer.value[1] = tas->mixer_r[idx]; | |
30719206 | 345 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
346 | |
347 | return 0; | |
348 | } | |
349 | ||
350 | static int tas_snd_mixer_put(struct snd_kcontrol *kcontrol, | |
351 | struct snd_ctl_elem_value *ucontrol) | |
352 | { | |
353 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
354 | int idx = kcontrol->private_value; | |
355 | ||
30719206 | 356 | mutex_lock(&tas->mtx); |
f3d9478b | 357 | if (tas->mixer_l[idx] == ucontrol->value.integer.value[0] |
30719206 JB |
358 | && tas->mixer_r[idx] == ucontrol->value.integer.value[1]) { |
359 | mutex_unlock(&tas->mtx); | |
f3d9478b | 360 | return 0; |
30719206 | 361 | } |
f3d9478b JB |
362 | |
363 | tas->mixer_l[idx] = ucontrol->value.integer.value[0]; | |
364 | tas->mixer_r[idx] = ucontrol->value.integer.value[1]; | |
365 | ||
6a4f5787 BH |
366 | if (tas->hw_enabled) |
367 | tas_set_mixer(tas); | |
30719206 | 368 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
369 | return 1; |
370 | } | |
371 | ||
372 | #define MIXER_CONTROL(n,descr,idx) \ | |
373 | static struct snd_kcontrol_new n##_control = { \ | |
374 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ | |
375 | .name = descr " Playback Volume", \ | |
376 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ | |
377 | .info = tas_snd_mixer_info, \ | |
378 | .get = tas_snd_mixer_get, \ | |
379 | .put = tas_snd_mixer_put, \ | |
380 | .private_value = idx, \ | |
381 | } | |
382 | ||
14b42963 | 383 | MIXER_CONTROL(pcm1, "PCM", 0); |
f3d9478b JB |
384 | MIXER_CONTROL(monitor, "Monitor", 2); |
385 | ||
9b8f52f5 JB |
386 | static int tas_snd_drc_range_info(struct snd_kcontrol *kcontrol, |
387 | struct snd_ctl_elem_info *uinfo) | |
388 | { | |
389 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
390 | uinfo->count = 1; | |
391 | uinfo->value.integer.min = 0; | |
392 | uinfo->value.integer.max = TAS3004_DRC_MAX; | |
393 | return 0; | |
394 | } | |
395 | ||
396 | static int tas_snd_drc_range_get(struct snd_kcontrol *kcontrol, | |
397 | struct snd_ctl_elem_value *ucontrol) | |
398 | { | |
399 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
400 | ||
30719206 | 401 | mutex_lock(&tas->mtx); |
9b8f52f5 | 402 | ucontrol->value.integer.value[0] = tas->drc_range; |
30719206 | 403 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
404 | return 0; |
405 | } | |
406 | ||
407 | static int tas_snd_drc_range_put(struct snd_kcontrol *kcontrol, | |
408 | struct snd_ctl_elem_value *ucontrol) | |
409 | { | |
410 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
411 | ||
498ade1a TI |
412 | if (ucontrol->value.integer.value[0] < 0 || |
413 | ucontrol->value.integer.value[0] > TAS3004_DRC_MAX) | |
414 | return -EINVAL; | |
415 | ||
30719206 JB |
416 | mutex_lock(&tas->mtx); |
417 | if (tas->drc_range == ucontrol->value.integer.value[0]) { | |
418 | mutex_unlock(&tas->mtx); | |
9b8f52f5 | 419 | return 0; |
30719206 | 420 | } |
9b8f52f5 JB |
421 | |
422 | tas->drc_range = ucontrol->value.integer.value[0]; | |
423 | if (tas->hw_enabled) | |
424 | tas3004_set_drc(tas); | |
30719206 | 425 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
426 | return 1; |
427 | } | |
428 | ||
429 | static struct snd_kcontrol_new drc_range_control = { | |
430 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
431 | .name = "DRC Range", | |
432 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
433 | .info = tas_snd_drc_range_info, | |
434 | .get = tas_snd_drc_range_get, | |
435 | .put = tas_snd_drc_range_put, | |
436 | }; | |
437 | ||
a5ce8890 | 438 | #define tas_snd_drc_switch_info snd_ctl_boolean_mono_info |
9b8f52f5 JB |
439 | |
440 | static int tas_snd_drc_switch_get(struct snd_kcontrol *kcontrol, | |
441 | struct snd_ctl_elem_value *ucontrol) | |
442 | { | |
443 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
444 | ||
30719206 | 445 | mutex_lock(&tas->mtx); |
9b8f52f5 | 446 | ucontrol->value.integer.value[0] = tas->drc_enabled; |
30719206 | 447 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
448 | return 0; |
449 | } | |
450 | ||
451 | static int tas_snd_drc_switch_put(struct snd_kcontrol *kcontrol, | |
452 | struct snd_ctl_elem_value *ucontrol) | |
453 | { | |
454 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
455 | ||
30719206 JB |
456 | mutex_lock(&tas->mtx); |
457 | if (tas->drc_enabled == ucontrol->value.integer.value[0]) { | |
458 | mutex_unlock(&tas->mtx); | |
9b8f52f5 | 459 | return 0; |
30719206 | 460 | } |
9b8f52f5 | 461 | |
498ade1a | 462 | tas->drc_enabled = !!ucontrol->value.integer.value[0]; |
9b8f52f5 JB |
463 | if (tas->hw_enabled) |
464 | tas3004_set_drc(tas); | |
30719206 | 465 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
466 | return 1; |
467 | } | |
468 | ||
469 | static struct snd_kcontrol_new drc_switch_control = { | |
470 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
471 | .name = "DRC Range Switch", | |
472 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
473 | .info = tas_snd_drc_switch_info, | |
474 | .get = tas_snd_drc_switch_get, | |
475 | .put = tas_snd_drc_switch_put, | |
476 | }; | |
477 | ||
f3d9478b JB |
478 | static int tas_snd_capture_source_info(struct snd_kcontrol *kcontrol, |
479 | struct snd_ctl_elem_info *uinfo) | |
480 | { | |
481 | static char *texts[] = { "Line-In", "Microphone" }; | |
482 | ||
483 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
484 | uinfo->count = 1; | |
485 | uinfo->value.enumerated.items = 2; | |
486 | if (uinfo->value.enumerated.item > 1) | |
487 | uinfo->value.enumerated.item = 1; | |
488 | strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); | |
489 | return 0; | |
490 | } | |
491 | ||
492 | static int tas_snd_capture_source_get(struct snd_kcontrol *kcontrol, | |
493 | struct snd_ctl_elem_value *ucontrol) | |
494 | { | |
495 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
496 | ||
30719206 | 497 | mutex_lock(&tas->mtx); |
f3d9478b | 498 | ucontrol->value.enumerated.item[0] = !!(tas->acr & TAS_ACR_INPUT_B); |
30719206 | 499 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
500 | return 0; |
501 | } | |
502 | ||
503 | static int tas_snd_capture_source_put(struct snd_kcontrol *kcontrol, | |
504 | struct snd_ctl_elem_value *ucontrol) | |
505 | { | |
506 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
30719206 JB |
507 | int oldacr; |
508 | ||
498ade1a TI |
509 | if (ucontrol->value.enumerated.item[0] > 1) |
510 | return -EINVAL; | |
30719206 JB |
511 | mutex_lock(&tas->mtx); |
512 | oldacr = tas->acr; | |
f3d9478b | 513 | |
80b8d5d6 PM |
514 | /* |
515 | * Despite what the data sheet says in one place, the | |
516 | * TAS_ACR_B_MONAUREAL bit forces mono output even when | |
517 | * input A (line in) is selected. | |
518 | */ | |
519 | tas->acr &= ~(TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL); | |
f3d9478b | 520 | if (ucontrol->value.enumerated.item[0]) |
80b8d5d6 PM |
521 | tas->acr |= TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL | |
522 | TAS_ACR_B_MON_SEL_RIGHT; | |
30719206 JB |
523 | if (oldacr == tas->acr) { |
524 | mutex_unlock(&tas->mtx); | |
f3d9478b | 525 | return 0; |
30719206 | 526 | } |
6a4f5787 BH |
527 | if (tas->hw_enabled) |
528 | tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr); | |
30719206 | 529 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
530 | return 1; |
531 | } | |
532 | ||
533 | static struct snd_kcontrol_new capture_source_control = { | |
534 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
535 | /* If we name this 'Input Source', it properly shows up in | |
536 | * alsamixer as a selection, * but it's shown under the | |
537 | * 'Playback' category. | |
538 | * If I name it 'Capture Source', it shows up in strange | |
539 | * ways (two bools of which one can be selected at a | |
540 | * time) but at least it's shown in the 'Capture' | |
541 | * category. | |
542 | * I was told that this was due to backward compatibility, | |
543 | * but I don't understand then why the mangling is *not* | |
544 | * done when I name it "Input Source"..... | |
545 | */ | |
546 | .name = "Capture Source", | |
547 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
548 | .info = tas_snd_capture_source_info, | |
549 | .get = tas_snd_capture_source_get, | |
550 | .put = tas_snd_capture_source_put, | |
551 | }; | |
552 | ||
50099328 JB |
553 | static int tas_snd_treble_info(struct snd_kcontrol *kcontrol, |
554 | struct snd_ctl_elem_info *uinfo) | |
555 | { | |
556 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
557 | uinfo->count = 1; | |
558 | uinfo->value.integer.min = TAS3004_TREBLE_MIN; | |
559 | uinfo->value.integer.max = TAS3004_TREBLE_MAX; | |
560 | return 0; | |
561 | } | |
562 | ||
563 | static int tas_snd_treble_get(struct snd_kcontrol *kcontrol, | |
564 | struct snd_ctl_elem_value *ucontrol) | |
565 | { | |
566 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
567 | ||
30719206 | 568 | mutex_lock(&tas->mtx); |
50099328 | 569 | ucontrol->value.integer.value[0] = tas->treble; |
30719206 | 570 | mutex_unlock(&tas->mtx); |
50099328 JB |
571 | return 0; |
572 | } | |
573 | ||
574 | static int tas_snd_treble_put(struct snd_kcontrol *kcontrol, | |
575 | struct snd_ctl_elem_value *ucontrol) | |
576 | { | |
577 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
578 | ||
498ade1a TI |
579 | if (ucontrol->value.integer.value[0] < TAS3004_TREBLE_MIN || |
580 | ucontrol->value.integer.value[0] > TAS3004_TREBLE_MAX) | |
581 | return -EINVAL; | |
30719206 JB |
582 | mutex_lock(&tas->mtx); |
583 | if (tas->treble == ucontrol->value.integer.value[0]) { | |
584 | mutex_unlock(&tas->mtx); | |
50099328 | 585 | return 0; |
30719206 | 586 | } |
50099328 JB |
587 | |
588 | tas->treble = ucontrol->value.integer.value[0]; | |
589 | if (tas->hw_enabled) | |
590 | tas_set_treble(tas); | |
30719206 | 591 | mutex_unlock(&tas->mtx); |
50099328 JB |
592 | return 1; |
593 | } | |
594 | ||
595 | static struct snd_kcontrol_new treble_control = { | |
596 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
597 | .name = "Treble", | |
598 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
599 | .info = tas_snd_treble_info, | |
600 | .get = tas_snd_treble_get, | |
601 | .put = tas_snd_treble_put, | |
602 | }; | |
603 | ||
604 | static int tas_snd_bass_info(struct snd_kcontrol *kcontrol, | |
605 | struct snd_ctl_elem_info *uinfo) | |
606 | { | |
607 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
608 | uinfo->count = 1; | |
609 | uinfo->value.integer.min = TAS3004_BASS_MIN; | |
610 | uinfo->value.integer.max = TAS3004_BASS_MAX; | |
611 | return 0; | |
612 | } | |
613 | ||
614 | static int tas_snd_bass_get(struct snd_kcontrol *kcontrol, | |
615 | struct snd_ctl_elem_value *ucontrol) | |
616 | { | |
617 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
618 | ||
30719206 | 619 | mutex_lock(&tas->mtx); |
50099328 | 620 | ucontrol->value.integer.value[0] = tas->bass; |
30719206 | 621 | mutex_unlock(&tas->mtx); |
50099328 JB |
622 | return 0; |
623 | } | |
624 | ||
625 | static int tas_snd_bass_put(struct snd_kcontrol *kcontrol, | |
626 | struct snd_ctl_elem_value *ucontrol) | |
627 | { | |
628 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
629 | ||
498ade1a TI |
630 | if (ucontrol->value.integer.value[0] < TAS3004_BASS_MIN || |
631 | ucontrol->value.integer.value[0] > TAS3004_BASS_MAX) | |
632 | return -EINVAL; | |
30719206 JB |
633 | mutex_lock(&tas->mtx); |
634 | if (tas->bass == ucontrol->value.integer.value[0]) { | |
635 | mutex_unlock(&tas->mtx); | |
50099328 | 636 | return 0; |
30719206 | 637 | } |
50099328 JB |
638 | |
639 | tas->bass = ucontrol->value.integer.value[0]; | |
640 | if (tas->hw_enabled) | |
641 | tas_set_bass(tas); | |
30719206 | 642 | mutex_unlock(&tas->mtx); |
50099328 JB |
643 | return 1; |
644 | } | |
645 | ||
646 | static struct snd_kcontrol_new bass_control = { | |
647 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
648 | .name = "Bass", | |
649 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
650 | .info = tas_snd_bass_info, | |
651 | .get = tas_snd_bass_get, | |
652 | .put = tas_snd_bass_put, | |
653 | }; | |
f3d9478b JB |
654 | |
655 | static struct transfer_info tas_transfers[] = { | |
656 | { | |
657 | /* input */ | |
c7d03bc2 | 658 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_BE, |
f3d9478b JB |
659 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, |
660 | .transfer_in = 1, | |
661 | }, | |
662 | { | |
663 | /* output */ | |
c7d03bc2 | 664 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_BE, |
f3d9478b JB |
665 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, |
666 | .transfer_in = 0, | |
667 | }, | |
668 | {} | |
669 | }; | |
670 | ||
671 | static int tas_usable(struct codec_info_item *cii, | |
672 | struct transfer_info *ti, | |
673 | struct transfer_info *out) | |
674 | { | |
675 | return 1; | |
676 | } | |
677 | ||
678 | static int tas_reset_init(struct tas *tas) | |
679 | { | |
680 | u8 tmp; | |
6a4f5787 BH |
681 | |
682 | tas->codec.gpio->methods->all_amps_off(tas->codec.gpio); | |
683 | msleep(5); | |
f3d9478b | 684 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0); |
6a4f5787 | 685 | msleep(5); |
f3d9478b | 686 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 1); |
6a4f5787 | 687 | msleep(20); |
f3d9478b | 688 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0); |
6a4f5787 BH |
689 | msleep(10); |
690 | tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio); | |
f3d9478b JB |
691 | |
692 | tmp = TAS_MCS_SCLK64 | TAS_MCS_SPORT_MODE_I2S | TAS_MCS_SPORT_WL_24BIT; | |
693 | if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp)) | |
30719206 | 694 | goto outerr; |
f3d9478b | 695 | |
80b8d5d6 | 696 | tas->acr |= TAS_ACR_ANALOG_PDOWN; |
6a4f5787 | 697 | if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr)) |
30719206 | 698 | goto outerr; |
6a4f5787 | 699 | |
f3d9478b JB |
700 | tmp = 0; |
701 | if (tas_write_reg(tas, TAS_REG_MCS2, 1, &tmp)) | |
30719206 | 702 | goto outerr; |
f3d9478b | 703 | |
6a4f5787 BH |
704 | tas3004_set_drc(tas); |
705 | ||
706 | /* Set treble & bass to 0dB */ | |
50099328 JB |
707 | tas->treble = TAS3004_TREBLE_ZERO; |
708 | tas->bass = TAS3004_BASS_ZERO; | |
709 | tas_set_treble(tas); | |
710 | tas_set_bass(tas); | |
6a4f5787 BH |
711 | |
712 | tas->acr &= ~TAS_ACR_ANALOG_PDOWN; | |
713 | if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr)) | |
30719206 | 714 | goto outerr; |
6a4f5787 BH |
715 | |
716 | return 0; | |
30719206 JB |
717 | outerr: |
718 | return -ENODEV; | |
6a4f5787 BH |
719 | } |
720 | ||
721 | static int tas_switch_clock(struct codec_info_item *cii, enum clock_switch clock) | |
722 | { | |
723 | struct tas *tas = cii->codec_data; | |
724 | ||
725 | switch(clock) { | |
726 | case CLOCK_SWITCH_PREPARE_SLAVE: | |
727 | /* Clocks are going away, mute mute mute */ | |
728 | tas->codec.gpio->methods->all_amps_off(tas->codec.gpio); | |
729 | tas->hw_enabled = 0; | |
730 | break; | |
731 | case CLOCK_SWITCH_SLAVE: | |
732 | /* Clocks are back, re-init the codec */ | |
30719206 | 733 | mutex_lock(&tas->mtx); |
6a4f5787 BH |
734 | tas_reset_init(tas); |
735 | tas_set_volume(tas); | |
736 | tas_set_mixer(tas); | |
737 | tas->hw_enabled = 1; | |
738 | tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio); | |
30719206 | 739 | mutex_unlock(&tas->mtx); |
6a4f5787 BH |
740 | break; |
741 | default: | |
742 | /* doesn't happen as of now */ | |
743 | return -EINVAL; | |
744 | } | |
f3d9478b JB |
745 | return 0; |
746 | } | |
747 | ||
1f28960b | 748 | #ifdef CONFIG_PM |
f3d9478b JB |
749 | /* we are controlled via i2c and assume that is always up |
750 | * If that wasn't the case, we'd have to suspend once | |
751 | * our i2c device is suspended, and then take note of that! */ | |
752 | static int tas_suspend(struct tas *tas) | |
753 | { | |
30719206 | 754 | mutex_lock(&tas->mtx); |
6a4f5787 | 755 | tas->hw_enabled = 0; |
f3d9478b JB |
756 | tas->acr |= TAS_ACR_ANALOG_PDOWN; |
757 | tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr); | |
30719206 | 758 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
759 | return 0; |
760 | } | |
761 | ||
762 | static int tas_resume(struct tas *tas) | |
763 | { | |
764 | /* reset codec */ | |
30719206 | 765 | mutex_lock(&tas->mtx); |
f3d9478b JB |
766 | tas_reset_init(tas); |
767 | tas_set_volume(tas); | |
768 | tas_set_mixer(tas); | |
6a4f5787 | 769 | tas->hw_enabled = 1; |
30719206 | 770 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
771 | return 0; |
772 | } | |
773 | ||
f3d9478b JB |
774 | static int _tas_suspend(struct codec_info_item *cii, pm_message_t state) |
775 | { | |
776 | return tas_suspend(cii->codec_data); | |
777 | } | |
778 | ||
779 | static int _tas_resume(struct codec_info_item *cii) | |
780 | { | |
781 | return tas_resume(cii->codec_data); | |
782 | } | |
1f28960b SR |
783 | #else /* CONFIG_PM */ |
784 | #define _tas_suspend NULL | |
785 | #define _tas_resume NULL | |
786 | #endif /* CONFIG_PM */ | |
f3d9478b JB |
787 | |
788 | static struct codec_info tas_codec_info = { | |
789 | .transfers = tas_transfers, | |
790 | /* in theory, we can drive it at 512 too... | |
791 | * but so far the framework doesn't allow | |
792 | * for that and I don't see much point in it. */ | |
793 | .sysclock_factor = 256, | |
794 | /* same here, could be 32 for just one 16 bit format */ | |
795 | .bus_factor = 64, | |
796 | .owner = THIS_MODULE, | |
797 | .usable = tas_usable, | |
6a4f5787 | 798 | .switch_clock = tas_switch_clock, |
f3d9478b JB |
799 | .suspend = _tas_suspend, |
800 | .resume = _tas_resume, | |
f3d9478b JB |
801 | }; |
802 | ||
803 | static int tas_init_codec(struct aoa_codec *codec) | |
804 | { | |
805 | struct tas *tas = codec_to_tas(codec); | |
806 | int err; | |
807 | ||
808 | if (!tas->codec.gpio || !tas->codec.gpio->methods) { | |
809 | printk(KERN_ERR PFX "gpios not assigned!!\n"); | |
810 | return -EINVAL; | |
811 | } | |
812 | ||
30719206 | 813 | mutex_lock(&tas->mtx); |
f3d9478b JB |
814 | if (tas_reset_init(tas)) { |
815 | printk(KERN_ERR PFX "tas failed to initialise\n"); | |
30719206 | 816 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
817 | return -ENXIO; |
818 | } | |
6a4f5787 | 819 | tas->hw_enabled = 1; |
30719206 | 820 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
821 | |
822 | if (tas->codec.soundbus_dev->attach_codec(tas->codec.soundbus_dev, | |
823 | aoa_get_card(), | |
824 | &tas_codec_info, tas)) { | |
825 | printk(KERN_ERR PFX "error attaching tas to soundbus\n"); | |
826 | return -ENODEV; | |
827 | } | |
828 | ||
829 | if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, tas, &ops)) { | |
830 | printk(KERN_ERR PFX "failed to create tas snd device!\n"); | |
831 | return -ENODEV; | |
832 | } | |
833 | err = aoa_snd_ctl_add(snd_ctl_new1(&volume_control, tas)); | |
834 | if (err) | |
835 | goto error; | |
836 | ||
837 | err = aoa_snd_ctl_add(snd_ctl_new1(&mute_control, tas)); | |
838 | if (err) | |
839 | goto error; | |
840 | ||
841 | err = aoa_snd_ctl_add(snd_ctl_new1(&pcm1_control, tas)); | |
842 | if (err) | |
843 | goto error; | |
844 | ||
845 | err = aoa_snd_ctl_add(snd_ctl_new1(&monitor_control, tas)); | |
846 | if (err) | |
847 | goto error; | |
848 | ||
849 | err = aoa_snd_ctl_add(snd_ctl_new1(&capture_source_control, tas)); | |
850 | if (err) | |
851 | goto error; | |
852 | ||
9b8f52f5 JB |
853 | err = aoa_snd_ctl_add(snd_ctl_new1(&drc_range_control, tas)); |
854 | if (err) | |
855 | goto error; | |
856 | ||
857 | err = aoa_snd_ctl_add(snd_ctl_new1(&drc_switch_control, tas)); | |
858 | if (err) | |
859 | goto error; | |
860 | ||
50099328 JB |
861 | err = aoa_snd_ctl_add(snd_ctl_new1(&treble_control, tas)); |
862 | if (err) | |
863 | goto error; | |
864 | ||
865 | err = aoa_snd_ctl_add(snd_ctl_new1(&bass_control, tas)); | |
866 | if (err) | |
867 | goto error; | |
868 | ||
f3d9478b JB |
869 | return 0; |
870 | error: | |
871 | tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas); | |
872 | snd_device_free(aoa_get_card(), tas); | |
873 | return err; | |
874 | } | |
875 | ||
876 | static void tas_exit_codec(struct aoa_codec *codec) | |
877 | { | |
878 | struct tas *tas = codec_to_tas(codec); | |
879 | ||
880 | if (!tas->codec.soundbus_dev) | |
881 | return; | |
882 | tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas); | |
883 | } | |
888dcb7c | 884 | |
f3d9478b | 885 | |
f3d9478b JB |
886 | static int tas_create(struct i2c_adapter *adapter, |
887 | struct device_node *node, | |
888 | int addr) | |
889 | { | |
cfbf1eec JD |
890 | struct i2c_board_info info; |
891 | struct i2c_client *client; | |
892 | ||
893 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
894 | strlcpy(info.type, "aoa_codec_tas", I2C_NAME_SIZE); | |
895 | info.addr = addr; | |
896 | info.platform_data = node; | |
897 | ||
898 | client = i2c_new_device(adapter, &info); | |
899 | if (!client) | |
900 | return -ENODEV; | |
18c40784 TI |
901 | /* |
902 | * We know the driver is already loaded, so the device should be | |
903 | * already bound. If not it means binding failed, and then there | |
904 | * is no point in keeping the device instantiated. | |
905 | */ | |
906 | if (!client->driver) { | |
907 | i2c_unregister_device(client); | |
908 | return -ENODEV; | |
909 | } | |
cfbf1eec JD |
910 | |
911 | /* | |
912 | * Let i2c-core delete that device on driver removal. | |
913 | * This is safe because i2c-core holds the core_lock mutex for us. | |
914 | */ | |
915 | list_add_tail(&client->detected, &client->driver->clients); | |
916 | return 0; | |
917 | } | |
918 | ||
919 | static int tas_i2c_probe(struct i2c_client *client, | |
920 | const struct i2c_device_id *id) | |
921 | { | |
922 | struct device_node *node = client->dev.platform_data; | |
f3d9478b JB |
923 | struct tas *tas; |
924 | ||
925 | tas = kzalloc(sizeof(struct tas), GFP_KERNEL); | |
926 | ||
927 | if (!tas) | |
928 | return -ENOMEM; | |
929 | ||
30719206 | 930 | mutex_init(&tas->mtx); |
cfbf1eec JD |
931 | tas->i2c = client; |
932 | i2c_set_clientdata(client, tas); | |
933 | ||
9b8f52f5 JB |
934 | /* seems that half is a saner default */ |
935 | tas->drc_range = TAS3004_DRC_MAX / 2; | |
f3d9478b | 936 | |
023ff3ee | 937 | strlcpy(tas->codec.name, "tas", MAX_CODEC_NAME_LEN); |
f3d9478b JB |
938 | tas->codec.owner = THIS_MODULE; |
939 | tas->codec.init = tas_init_codec; | |
940 | tas->codec.exit = tas_exit_codec; | |
941 | tas->codec.node = of_node_get(node); | |
942 | ||
943 | if (aoa_codec_register(&tas->codec)) { | |
cfbf1eec | 944 | goto fail; |
f3d9478b | 945 | } |
6a4f5787 BH |
946 | printk(KERN_DEBUG |
947 | "snd-aoa-codec-tas: tas found, addr 0x%02x on %s\n", | |
cfbf1eec | 948 | (unsigned int)client->addr, node->full_name); |
f3d9478b | 949 | return 0; |
f3d9478b | 950 | fail: |
30719206 | 951 | mutex_destroy(&tas->mtx); |
f3d9478b JB |
952 | kfree(tas); |
953 | return -EINVAL; | |
954 | } | |
955 | ||
956 | static int tas_i2c_attach(struct i2c_adapter *adapter) | |
957 | { | |
958 | struct device_node *busnode, *dev = NULL; | |
959 | struct pmac_i2c_bus *bus; | |
960 | ||
961 | bus = pmac_i2c_adapter_to_bus(adapter); | |
962 | if (bus == NULL) | |
963 | return -ENODEV; | |
964 | busnode = pmac_i2c_get_bus_node(bus); | |
965 | ||
966 | while ((dev = of_get_next_child(busnode, dev)) != NULL) { | |
55b61fec | 967 | if (of_device_is_compatible(dev, "tas3004")) { |
a7edd0e6 | 968 | const u32 *addr; |
f3d9478b | 969 | printk(KERN_DEBUG PFX "found tas3004\n"); |
c4f55b39 | 970 | addr = of_get_property(dev, "reg", NULL); |
f3d9478b JB |
971 | if (!addr) |
972 | continue; | |
973 | return tas_create(adapter, dev, ((*addr) >> 1) & 0x7f); | |
974 | } | |
975 | /* older machines have no 'codec' node with a 'compatible' | |
976 | * property that says 'tas3004', they just have a 'deq' | |
977 | * node without any such property... */ | |
978 | if (strcmp(dev->name, "deq") == 0) { | |
a7edd0e6 SR |
979 | const u32 *_addr; |
980 | u32 addr; | |
f3d9478b | 981 | printk(KERN_DEBUG PFX "found 'deq' node\n"); |
c4f55b39 | 982 | _addr = of_get_property(dev, "i2c-address", NULL); |
f3d9478b JB |
983 | if (!_addr) |
984 | continue; | |
985 | addr = ((*_addr) >> 1) & 0x7f; | |
986 | /* now, if the address doesn't match any of the two | |
987 | * that a tas3004 can have, we cannot handle this. | |
988 | * I doubt it ever happens but hey. */ | |
989 | if (addr != 0x34 && addr != 0x35) | |
990 | continue; | |
991 | return tas_create(adapter, dev, addr); | |
992 | } | |
993 | } | |
994 | return -ENODEV; | |
995 | } | |
996 | ||
cfbf1eec | 997 | static int tas_i2c_remove(struct i2c_client *client) |
f3d9478b | 998 | { |
cfbf1eec | 999 | struct tas *tas = i2c_get_clientdata(client); |
f3d9478b JB |
1000 | u8 tmp = TAS_ACR_ANALOG_PDOWN; |
1001 | ||
f3d9478b JB |
1002 | aoa_codec_unregister(&tas->codec); |
1003 | of_node_put(tas->codec.node); | |
1004 | ||
1005 | /* power down codec chip */ | |
1006 | tas_write_reg(tas, TAS_REG_ACR, 1, &tmp); | |
1007 | ||
30719206 | 1008 | mutex_destroy(&tas->mtx); |
f3d9478b JB |
1009 | kfree(tas); |
1010 | return 0; | |
1011 | } | |
1012 | ||
cfbf1eec JD |
1013 | static const struct i2c_device_id tas_i2c_id[] = { |
1014 | { "aoa_codec_tas", 0 }, | |
1015 | { } | |
1016 | }; | |
1017 | ||
f3d9478b JB |
1018 | static struct i2c_driver tas_driver = { |
1019 | .driver = { | |
1020 | .name = "aoa_codec_tas", | |
1021 | .owner = THIS_MODULE, | |
1022 | }, | |
1023 | .attach_adapter = tas_i2c_attach, | |
cfbf1eec JD |
1024 | .probe = tas_i2c_probe, |
1025 | .remove = tas_i2c_remove, | |
1026 | .id_table = tas_i2c_id, | |
f3d9478b JB |
1027 | }; |
1028 | ||
1029 | static int __init tas_init(void) | |
1030 | { | |
1031 | return i2c_add_driver(&tas_driver); | |
1032 | } | |
1033 | ||
1034 | static void __exit tas_exit(void) | |
1035 | { | |
1036 | i2c_del_driver(&tas_driver); | |
1037 | } | |
1038 | ||
1039 | module_init(tas_init); | |
1040 | module_exit(tas_exit); |