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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> | |
64 | #include <linux/i2c-dev.h> | |
65 | #include <asm/pmac_low_i2c.h> | |
66 | #include <asm/prom.h> | |
67 | #include <linux/delay.h> | |
68 | #include <linux/module.h> | |
30719206 JB |
69 | #include <linux/mutex.h> |
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 | ||
75 | #include "snd-aoa-codec-tas.h" | |
76 | #include "snd-aoa-codec-tas-gain-table.h" | |
50099328 | 77 | #include "snd-aoa-codec-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; | |
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) | |
112 | return i2c_smbus_write_byte_data(&tas->i2c, reg, *data); | |
113 | else | |
114 | return i2c_smbus_write_i2c_block_data(&tas->i2c, reg, len, data); | |
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 | ||
30719206 | 252 | mutex_lock(&tas->mtx); |
f3d9478b | 253 | if (tas->cached_volume_l == ucontrol->value.integer.value[0] |
30719206 JB |
254 | && tas->cached_volume_r == ucontrol->value.integer.value[1]) { |
255 | mutex_unlock(&tas->mtx); | |
f3d9478b | 256 | return 0; |
30719206 | 257 | } |
f3d9478b JB |
258 | |
259 | tas->cached_volume_l = ucontrol->value.integer.value[0]; | |
260 | tas->cached_volume_r = ucontrol->value.integer.value[1]; | |
6a4f5787 BH |
261 | if (tas->hw_enabled) |
262 | tas_set_volume(tas); | |
30719206 | 263 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
264 | return 1; |
265 | } | |
266 | ||
267 | static struct snd_kcontrol_new volume_control = { | |
268 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
269 | .name = "Master Playback Volume", | |
270 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
271 | .info = tas_snd_vol_info, | |
272 | .get = tas_snd_vol_get, | |
273 | .put = tas_snd_vol_put, | |
274 | }; | |
275 | ||
276 | static int tas_snd_mute_info(struct snd_kcontrol *kcontrol, | |
277 | struct snd_ctl_elem_info *uinfo) | |
278 | { | |
279 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
280 | uinfo->count = 2; | |
281 | uinfo->value.integer.min = 0; | |
282 | uinfo->value.integer.max = 1; | |
283 | return 0; | |
284 | } | |
285 | ||
286 | static int tas_snd_mute_get(struct snd_kcontrol *kcontrol, | |
287 | struct snd_ctl_elem_value *ucontrol) | |
288 | { | |
289 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
290 | ||
30719206 | 291 | mutex_lock(&tas->mtx); |
6a4f5787 BH |
292 | ucontrol->value.integer.value[0] = !tas->mute_l; |
293 | ucontrol->value.integer.value[1] = !tas->mute_r; | |
30719206 | 294 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
295 | return 0; |
296 | } | |
297 | ||
298 | static int tas_snd_mute_put(struct snd_kcontrol *kcontrol, | |
299 | struct snd_ctl_elem_value *ucontrol) | |
300 | { | |
301 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
302 | ||
30719206 | 303 | mutex_lock(&tas->mtx); |
6a4f5787 | 304 | if (tas->mute_l == !ucontrol->value.integer.value[0] |
30719206 JB |
305 | && tas->mute_r == !ucontrol->value.integer.value[1]) { |
306 | mutex_unlock(&tas->mtx); | |
f3d9478b | 307 | return 0; |
30719206 | 308 | } |
f3d9478b | 309 | |
6a4f5787 BH |
310 | tas->mute_l = !ucontrol->value.integer.value[0]; |
311 | tas->mute_r = !ucontrol->value.integer.value[1]; | |
312 | if (tas->hw_enabled) | |
313 | tas_set_volume(tas); | |
30719206 | 314 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
315 | return 1; |
316 | } | |
317 | ||
318 | static struct snd_kcontrol_new mute_control = { | |
319 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
320 | .name = "Master Playback Switch", | |
321 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
322 | .info = tas_snd_mute_info, | |
323 | .get = tas_snd_mute_get, | |
324 | .put = tas_snd_mute_put, | |
325 | }; | |
326 | ||
327 | static int tas_snd_mixer_info(struct snd_kcontrol *kcontrol, | |
328 | struct snd_ctl_elem_info *uinfo) | |
329 | { | |
330 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
331 | uinfo->count = 2; | |
332 | uinfo->value.integer.min = 0; | |
333 | uinfo->value.integer.max = 177; | |
334 | return 0; | |
335 | } | |
336 | ||
337 | static int tas_snd_mixer_get(struct snd_kcontrol *kcontrol, | |
338 | struct snd_ctl_elem_value *ucontrol) | |
339 | { | |
340 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
341 | int idx = kcontrol->private_value; | |
342 | ||
30719206 | 343 | mutex_lock(&tas->mtx); |
f3d9478b JB |
344 | ucontrol->value.integer.value[0] = tas->mixer_l[idx]; |
345 | ucontrol->value.integer.value[1] = tas->mixer_r[idx]; | |
30719206 | 346 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
347 | |
348 | return 0; | |
349 | } | |
350 | ||
351 | static int tas_snd_mixer_put(struct snd_kcontrol *kcontrol, | |
352 | struct snd_ctl_elem_value *ucontrol) | |
353 | { | |
354 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
355 | int idx = kcontrol->private_value; | |
356 | ||
30719206 | 357 | mutex_lock(&tas->mtx); |
f3d9478b | 358 | if (tas->mixer_l[idx] == ucontrol->value.integer.value[0] |
30719206 JB |
359 | && tas->mixer_r[idx] == ucontrol->value.integer.value[1]) { |
360 | mutex_unlock(&tas->mtx); | |
f3d9478b | 361 | return 0; |
30719206 | 362 | } |
f3d9478b JB |
363 | |
364 | tas->mixer_l[idx] = ucontrol->value.integer.value[0]; | |
365 | tas->mixer_r[idx] = ucontrol->value.integer.value[1]; | |
366 | ||
6a4f5787 BH |
367 | if (tas->hw_enabled) |
368 | tas_set_mixer(tas); | |
30719206 | 369 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
370 | return 1; |
371 | } | |
372 | ||
373 | #define MIXER_CONTROL(n,descr,idx) \ | |
374 | static struct snd_kcontrol_new n##_control = { \ | |
375 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ | |
376 | .name = descr " Playback Volume", \ | |
377 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ | |
378 | .info = tas_snd_mixer_info, \ | |
379 | .get = tas_snd_mixer_get, \ | |
380 | .put = tas_snd_mixer_put, \ | |
381 | .private_value = idx, \ | |
382 | } | |
383 | ||
14b42963 | 384 | MIXER_CONTROL(pcm1, "PCM", 0); |
f3d9478b JB |
385 | MIXER_CONTROL(monitor, "Monitor", 2); |
386 | ||
9b8f52f5 JB |
387 | static int tas_snd_drc_range_info(struct snd_kcontrol *kcontrol, |
388 | struct snd_ctl_elem_info *uinfo) | |
389 | { | |
390 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
391 | uinfo->count = 1; | |
392 | uinfo->value.integer.min = 0; | |
393 | uinfo->value.integer.max = TAS3004_DRC_MAX; | |
394 | return 0; | |
395 | } | |
396 | ||
397 | static int tas_snd_drc_range_get(struct snd_kcontrol *kcontrol, | |
398 | struct snd_ctl_elem_value *ucontrol) | |
399 | { | |
400 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
401 | ||
30719206 | 402 | mutex_lock(&tas->mtx); |
9b8f52f5 | 403 | ucontrol->value.integer.value[0] = tas->drc_range; |
30719206 | 404 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
405 | return 0; |
406 | } | |
407 | ||
408 | static int tas_snd_drc_range_put(struct snd_kcontrol *kcontrol, | |
409 | struct snd_ctl_elem_value *ucontrol) | |
410 | { | |
411 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
412 | ||
30719206 JB |
413 | mutex_lock(&tas->mtx); |
414 | if (tas->drc_range == ucontrol->value.integer.value[0]) { | |
415 | mutex_unlock(&tas->mtx); | |
9b8f52f5 | 416 | return 0; |
30719206 | 417 | } |
9b8f52f5 JB |
418 | |
419 | tas->drc_range = ucontrol->value.integer.value[0]; | |
420 | if (tas->hw_enabled) | |
421 | tas3004_set_drc(tas); | |
30719206 | 422 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
423 | return 1; |
424 | } | |
425 | ||
426 | static struct snd_kcontrol_new drc_range_control = { | |
427 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
428 | .name = "DRC Range", | |
429 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
430 | .info = tas_snd_drc_range_info, | |
431 | .get = tas_snd_drc_range_get, | |
432 | .put = tas_snd_drc_range_put, | |
433 | }; | |
434 | ||
435 | static int tas_snd_drc_switch_info(struct snd_kcontrol *kcontrol, | |
436 | struct snd_ctl_elem_info *uinfo) | |
437 | { | |
438 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
439 | uinfo->count = 1; | |
440 | uinfo->value.integer.min = 0; | |
441 | uinfo->value.integer.max = 1; | |
442 | return 0; | |
443 | } | |
444 | ||
445 | static int tas_snd_drc_switch_get(struct snd_kcontrol *kcontrol, | |
446 | struct snd_ctl_elem_value *ucontrol) | |
447 | { | |
448 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
449 | ||
30719206 | 450 | mutex_lock(&tas->mtx); |
9b8f52f5 | 451 | ucontrol->value.integer.value[0] = tas->drc_enabled; |
30719206 | 452 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
453 | return 0; |
454 | } | |
455 | ||
456 | static int tas_snd_drc_switch_put(struct snd_kcontrol *kcontrol, | |
457 | struct snd_ctl_elem_value *ucontrol) | |
458 | { | |
459 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
460 | ||
30719206 JB |
461 | mutex_lock(&tas->mtx); |
462 | if (tas->drc_enabled == ucontrol->value.integer.value[0]) { | |
463 | mutex_unlock(&tas->mtx); | |
9b8f52f5 | 464 | return 0; |
30719206 | 465 | } |
9b8f52f5 JB |
466 | |
467 | tas->drc_enabled = ucontrol->value.integer.value[0]; | |
468 | if (tas->hw_enabled) | |
469 | tas3004_set_drc(tas); | |
30719206 | 470 | mutex_unlock(&tas->mtx); |
9b8f52f5 JB |
471 | return 1; |
472 | } | |
473 | ||
474 | static struct snd_kcontrol_new drc_switch_control = { | |
475 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
476 | .name = "DRC Range Switch", | |
477 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
478 | .info = tas_snd_drc_switch_info, | |
479 | .get = tas_snd_drc_switch_get, | |
480 | .put = tas_snd_drc_switch_put, | |
481 | }; | |
482 | ||
f3d9478b JB |
483 | static int tas_snd_capture_source_info(struct snd_kcontrol *kcontrol, |
484 | struct snd_ctl_elem_info *uinfo) | |
485 | { | |
486 | static char *texts[] = { "Line-In", "Microphone" }; | |
487 | ||
488 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
489 | uinfo->count = 1; | |
490 | uinfo->value.enumerated.items = 2; | |
491 | if (uinfo->value.enumerated.item > 1) | |
492 | uinfo->value.enumerated.item = 1; | |
493 | strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); | |
494 | return 0; | |
495 | } | |
496 | ||
497 | static int tas_snd_capture_source_get(struct snd_kcontrol *kcontrol, | |
498 | struct snd_ctl_elem_value *ucontrol) | |
499 | { | |
500 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
501 | ||
30719206 | 502 | mutex_lock(&tas->mtx); |
f3d9478b | 503 | ucontrol->value.enumerated.item[0] = !!(tas->acr & TAS_ACR_INPUT_B); |
30719206 | 504 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
505 | return 0; |
506 | } | |
507 | ||
508 | static int tas_snd_capture_source_put(struct snd_kcontrol *kcontrol, | |
509 | struct snd_ctl_elem_value *ucontrol) | |
510 | { | |
511 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
30719206 JB |
512 | int oldacr; |
513 | ||
514 | mutex_lock(&tas->mtx); | |
515 | oldacr = tas->acr; | |
f3d9478b JB |
516 | |
517 | tas->acr &= ~TAS_ACR_INPUT_B; | |
518 | if (ucontrol->value.enumerated.item[0]) | |
519 | tas->acr |= TAS_ACR_INPUT_B; | |
30719206 JB |
520 | if (oldacr == tas->acr) { |
521 | mutex_unlock(&tas->mtx); | |
f3d9478b | 522 | return 0; |
30719206 | 523 | } |
6a4f5787 BH |
524 | if (tas->hw_enabled) |
525 | tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr); | |
30719206 | 526 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
527 | return 1; |
528 | } | |
529 | ||
530 | static struct snd_kcontrol_new capture_source_control = { | |
531 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
532 | /* If we name this 'Input Source', it properly shows up in | |
533 | * alsamixer as a selection, * but it's shown under the | |
534 | * 'Playback' category. | |
535 | * If I name it 'Capture Source', it shows up in strange | |
536 | * ways (two bools of which one can be selected at a | |
537 | * time) but at least it's shown in the 'Capture' | |
538 | * category. | |
539 | * I was told that this was due to backward compatibility, | |
540 | * but I don't understand then why the mangling is *not* | |
541 | * done when I name it "Input Source"..... | |
542 | */ | |
543 | .name = "Capture Source", | |
544 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
545 | .info = tas_snd_capture_source_info, | |
546 | .get = tas_snd_capture_source_get, | |
547 | .put = tas_snd_capture_source_put, | |
548 | }; | |
549 | ||
50099328 JB |
550 | static int tas_snd_treble_info(struct snd_kcontrol *kcontrol, |
551 | struct snd_ctl_elem_info *uinfo) | |
552 | { | |
553 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
554 | uinfo->count = 1; | |
555 | uinfo->value.integer.min = TAS3004_TREBLE_MIN; | |
556 | uinfo->value.integer.max = TAS3004_TREBLE_MAX; | |
557 | return 0; | |
558 | } | |
559 | ||
560 | static int tas_snd_treble_get(struct snd_kcontrol *kcontrol, | |
561 | struct snd_ctl_elem_value *ucontrol) | |
562 | { | |
563 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
564 | ||
30719206 | 565 | mutex_lock(&tas->mtx); |
50099328 | 566 | ucontrol->value.integer.value[0] = tas->treble; |
30719206 | 567 | mutex_unlock(&tas->mtx); |
50099328 JB |
568 | return 0; |
569 | } | |
570 | ||
571 | static int tas_snd_treble_put(struct snd_kcontrol *kcontrol, | |
572 | struct snd_ctl_elem_value *ucontrol) | |
573 | { | |
574 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
575 | ||
30719206 JB |
576 | mutex_lock(&tas->mtx); |
577 | if (tas->treble == ucontrol->value.integer.value[0]) { | |
578 | mutex_unlock(&tas->mtx); | |
50099328 | 579 | return 0; |
30719206 | 580 | } |
50099328 JB |
581 | |
582 | tas->treble = ucontrol->value.integer.value[0]; | |
583 | if (tas->hw_enabled) | |
584 | tas_set_treble(tas); | |
30719206 | 585 | mutex_unlock(&tas->mtx); |
50099328 JB |
586 | return 1; |
587 | } | |
588 | ||
589 | static struct snd_kcontrol_new treble_control = { | |
590 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
591 | .name = "Treble", | |
592 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
593 | .info = tas_snd_treble_info, | |
594 | .get = tas_snd_treble_get, | |
595 | .put = tas_snd_treble_put, | |
596 | }; | |
597 | ||
598 | static int tas_snd_bass_info(struct snd_kcontrol *kcontrol, | |
599 | struct snd_ctl_elem_info *uinfo) | |
600 | { | |
601 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
602 | uinfo->count = 1; | |
603 | uinfo->value.integer.min = TAS3004_BASS_MIN; | |
604 | uinfo->value.integer.max = TAS3004_BASS_MAX; | |
605 | return 0; | |
606 | } | |
607 | ||
608 | static int tas_snd_bass_get(struct snd_kcontrol *kcontrol, | |
609 | struct snd_ctl_elem_value *ucontrol) | |
610 | { | |
611 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
612 | ||
30719206 | 613 | mutex_lock(&tas->mtx); |
50099328 | 614 | ucontrol->value.integer.value[0] = tas->bass; |
30719206 | 615 | mutex_unlock(&tas->mtx); |
50099328 JB |
616 | return 0; |
617 | } | |
618 | ||
619 | static int tas_snd_bass_put(struct snd_kcontrol *kcontrol, | |
620 | struct snd_ctl_elem_value *ucontrol) | |
621 | { | |
622 | struct tas *tas = snd_kcontrol_chip(kcontrol); | |
623 | ||
30719206 JB |
624 | mutex_lock(&tas->mtx); |
625 | if (tas->bass == ucontrol->value.integer.value[0]) { | |
626 | mutex_unlock(&tas->mtx); | |
50099328 | 627 | return 0; |
30719206 | 628 | } |
50099328 JB |
629 | |
630 | tas->bass = ucontrol->value.integer.value[0]; | |
631 | if (tas->hw_enabled) | |
632 | tas_set_bass(tas); | |
30719206 | 633 | mutex_unlock(&tas->mtx); |
50099328 JB |
634 | return 1; |
635 | } | |
636 | ||
637 | static struct snd_kcontrol_new bass_control = { | |
638 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
639 | .name = "Bass", | |
640 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
641 | .info = tas_snd_bass_info, | |
642 | .get = tas_snd_bass_get, | |
643 | .put = tas_snd_bass_put, | |
644 | }; | |
f3d9478b JB |
645 | |
646 | static struct transfer_info tas_transfers[] = { | |
647 | { | |
648 | /* input */ | |
649 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_BE | | |
650 | SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S24_BE, | |
651 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, | |
652 | .transfer_in = 1, | |
653 | }, | |
654 | { | |
655 | /* output */ | |
656 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_BE | | |
657 | SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S24_BE, | |
658 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, | |
659 | .transfer_in = 0, | |
660 | }, | |
661 | {} | |
662 | }; | |
663 | ||
664 | static int tas_usable(struct codec_info_item *cii, | |
665 | struct transfer_info *ti, | |
666 | struct transfer_info *out) | |
667 | { | |
668 | return 1; | |
669 | } | |
670 | ||
671 | static int tas_reset_init(struct tas *tas) | |
672 | { | |
673 | u8 tmp; | |
6a4f5787 BH |
674 | |
675 | tas->codec.gpio->methods->all_amps_off(tas->codec.gpio); | |
676 | msleep(5); | |
f3d9478b | 677 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0); |
6a4f5787 | 678 | msleep(5); |
f3d9478b | 679 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 1); |
6a4f5787 | 680 | msleep(20); |
f3d9478b | 681 | tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0); |
6a4f5787 BH |
682 | msleep(10); |
683 | tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio); | |
f3d9478b JB |
684 | |
685 | tmp = TAS_MCS_SCLK64 | TAS_MCS_SPORT_MODE_I2S | TAS_MCS_SPORT_WL_24BIT; | |
686 | if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp)) | |
30719206 | 687 | goto outerr; |
f3d9478b | 688 | |
6a4f5787 BH |
689 | tas->acr |= TAS_ACR_ANALOG_PDOWN | TAS_ACR_B_MONAUREAL | |
690 | TAS_ACR_B_MON_SEL_RIGHT; | |
691 | if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr)) | |
30719206 | 692 | goto outerr; |
6a4f5787 | 693 | |
f3d9478b JB |
694 | tmp = 0; |
695 | if (tas_write_reg(tas, TAS_REG_MCS2, 1, &tmp)) | |
30719206 | 696 | goto outerr; |
f3d9478b | 697 | |
6a4f5787 BH |
698 | tas3004_set_drc(tas); |
699 | ||
700 | /* Set treble & bass to 0dB */ | |
50099328 JB |
701 | tas->treble = TAS3004_TREBLE_ZERO; |
702 | tas->bass = TAS3004_BASS_ZERO; | |
703 | tas_set_treble(tas); | |
704 | tas_set_bass(tas); | |
6a4f5787 BH |
705 | |
706 | tas->acr &= ~TAS_ACR_ANALOG_PDOWN; | |
707 | if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr)) | |
30719206 | 708 | goto outerr; |
6a4f5787 BH |
709 | |
710 | return 0; | |
30719206 JB |
711 | outerr: |
712 | return -ENODEV; | |
6a4f5787 BH |
713 | } |
714 | ||
715 | static int tas_switch_clock(struct codec_info_item *cii, enum clock_switch clock) | |
716 | { | |
717 | struct tas *tas = cii->codec_data; | |
718 | ||
719 | switch(clock) { | |
720 | case CLOCK_SWITCH_PREPARE_SLAVE: | |
721 | /* Clocks are going away, mute mute mute */ | |
722 | tas->codec.gpio->methods->all_amps_off(tas->codec.gpio); | |
723 | tas->hw_enabled = 0; | |
724 | break; | |
725 | case CLOCK_SWITCH_SLAVE: | |
726 | /* Clocks are back, re-init the codec */ | |
30719206 | 727 | mutex_lock(&tas->mtx); |
6a4f5787 BH |
728 | tas_reset_init(tas); |
729 | tas_set_volume(tas); | |
730 | tas_set_mixer(tas); | |
731 | tas->hw_enabled = 1; | |
732 | tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio); | |
30719206 | 733 | mutex_unlock(&tas->mtx); |
6a4f5787 BH |
734 | break; |
735 | default: | |
736 | /* doesn't happen as of now */ | |
737 | return -EINVAL; | |
738 | } | |
f3d9478b JB |
739 | return 0; |
740 | } | |
741 | ||
742 | /* we are controlled via i2c and assume that is always up | |
743 | * If that wasn't the case, we'd have to suspend once | |
744 | * our i2c device is suspended, and then take note of that! */ | |
745 | static int tas_suspend(struct tas *tas) | |
746 | { | |
30719206 | 747 | mutex_lock(&tas->mtx); |
6a4f5787 | 748 | tas->hw_enabled = 0; |
f3d9478b JB |
749 | tas->acr |= TAS_ACR_ANALOG_PDOWN; |
750 | tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr); | |
30719206 | 751 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
752 | return 0; |
753 | } | |
754 | ||
755 | static int tas_resume(struct tas *tas) | |
756 | { | |
757 | /* reset codec */ | |
30719206 | 758 | mutex_lock(&tas->mtx); |
f3d9478b JB |
759 | tas_reset_init(tas); |
760 | tas_set_volume(tas); | |
761 | tas_set_mixer(tas); | |
6a4f5787 | 762 | tas->hw_enabled = 1; |
30719206 | 763 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
764 | return 0; |
765 | } | |
766 | ||
767 | #ifdef CONFIG_PM | |
768 | static int _tas_suspend(struct codec_info_item *cii, pm_message_t state) | |
769 | { | |
770 | return tas_suspend(cii->codec_data); | |
771 | } | |
772 | ||
773 | static int _tas_resume(struct codec_info_item *cii) | |
774 | { | |
775 | return tas_resume(cii->codec_data); | |
776 | } | |
777 | #endif | |
778 | ||
779 | static struct codec_info tas_codec_info = { | |
780 | .transfers = tas_transfers, | |
781 | /* in theory, we can drive it at 512 too... | |
782 | * but so far the framework doesn't allow | |
783 | * for that and I don't see much point in it. */ | |
784 | .sysclock_factor = 256, | |
785 | /* same here, could be 32 for just one 16 bit format */ | |
786 | .bus_factor = 64, | |
787 | .owner = THIS_MODULE, | |
788 | .usable = tas_usable, | |
6a4f5787 | 789 | .switch_clock = tas_switch_clock, |
f3d9478b JB |
790 | #ifdef CONFIG_PM |
791 | .suspend = _tas_suspend, | |
792 | .resume = _tas_resume, | |
793 | #endif | |
794 | }; | |
795 | ||
796 | static int tas_init_codec(struct aoa_codec *codec) | |
797 | { | |
798 | struct tas *tas = codec_to_tas(codec); | |
799 | int err; | |
800 | ||
801 | if (!tas->codec.gpio || !tas->codec.gpio->methods) { | |
802 | printk(KERN_ERR PFX "gpios not assigned!!\n"); | |
803 | return -EINVAL; | |
804 | } | |
805 | ||
30719206 | 806 | mutex_lock(&tas->mtx); |
f3d9478b JB |
807 | if (tas_reset_init(tas)) { |
808 | printk(KERN_ERR PFX "tas failed to initialise\n"); | |
30719206 | 809 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
810 | return -ENXIO; |
811 | } | |
6a4f5787 | 812 | tas->hw_enabled = 1; |
30719206 | 813 | mutex_unlock(&tas->mtx); |
f3d9478b JB |
814 | |
815 | if (tas->codec.soundbus_dev->attach_codec(tas->codec.soundbus_dev, | |
816 | aoa_get_card(), | |
817 | &tas_codec_info, tas)) { | |
818 | printk(KERN_ERR PFX "error attaching tas to soundbus\n"); | |
819 | return -ENODEV; | |
820 | } | |
821 | ||
822 | if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, tas, &ops)) { | |
823 | printk(KERN_ERR PFX "failed to create tas snd device!\n"); | |
824 | return -ENODEV; | |
825 | } | |
826 | err = aoa_snd_ctl_add(snd_ctl_new1(&volume_control, tas)); | |
827 | if (err) | |
828 | goto error; | |
829 | ||
830 | err = aoa_snd_ctl_add(snd_ctl_new1(&mute_control, tas)); | |
831 | if (err) | |
832 | goto error; | |
833 | ||
834 | err = aoa_snd_ctl_add(snd_ctl_new1(&pcm1_control, tas)); | |
835 | if (err) | |
836 | goto error; | |
837 | ||
838 | err = aoa_snd_ctl_add(snd_ctl_new1(&monitor_control, tas)); | |
839 | if (err) | |
840 | goto error; | |
841 | ||
842 | err = aoa_snd_ctl_add(snd_ctl_new1(&capture_source_control, tas)); | |
843 | if (err) | |
844 | goto error; | |
845 | ||
9b8f52f5 JB |
846 | err = aoa_snd_ctl_add(snd_ctl_new1(&drc_range_control, tas)); |
847 | if (err) | |
848 | goto error; | |
849 | ||
850 | err = aoa_snd_ctl_add(snd_ctl_new1(&drc_switch_control, tas)); | |
851 | if (err) | |
852 | goto error; | |
853 | ||
50099328 JB |
854 | err = aoa_snd_ctl_add(snd_ctl_new1(&treble_control, tas)); |
855 | if (err) | |
856 | goto error; | |
857 | ||
858 | err = aoa_snd_ctl_add(snd_ctl_new1(&bass_control, tas)); | |
859 | if (err) | |
860 | goto error; | |
861 | ||
f3d9478b JB |
862 | return 0; |
863 | error: | |
864 | tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas); | |
865 | snd_device_free(aoa_get_card(), tas); | |
866 | return err; | |
867 | } | |
868 | ||
869 | static void tas_exit_codec(struct aoa_codec *codec) | |
870 | { | |
871 | struct tas *tas = codec_to_tas(codec); | |
872 | ||
873 | if (!tas->codec.soundbus_dev) | |
874 | return; | |
875 | tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas); | |
876 | } | |
877 | ||
878 | ||
879 | static struct i2c_driver tas_driver; | |
880 | ||
881 | static int tas_create(struct i2c_adapter *adapter, | |
882 | struct device_node *node, | |
883 | int addr) | |
884 | { | |
885 | struct tas *tas; | |
886 | ||
887 | tas = kzalloc(sizeof(struct tas), GFP_KERNEL); | |
888 | ||
889 | if (!tas) | |
890 | return -ENOMEM; | |
891 | ||
30719206 | 892 | mutex_init(&tas->mtx); |
f3d9478b JB |
893 | tas->i2c.driver = &tas_driver; |
894 | tas->i2c.adapter = adapter; | |
895 | tas->i2c.addr = addr; | |
9b8f52f5 JB |
896 | /* seems that half is a saner default */ |
897 | tas->drc_range = TAS3004_DRC_MAX / 2; | |
f3d9478b JB |
898 | strlcpy(tas->i2c.name, "tas audio codec", I2C_NAME_SIZE-1); |
899 | ||
900 | if (i2c_attach_client(&tas->i2c)) { | |
901 | printk(KERN_ERR PFX "failed to attach to i2c\n"); | |
902 | goto fail; | |
903 | } | |
904 | ||
905 | strlcpy(tas->codec.name, "tas", MAX_CODEC_NAME_LEN-1); | |
906 | tas->codec.owner = THIS_MODULE; | |
907 | tas->codec.init = tas_init_codec; | |
908 | tas->codec.exit = tas_exit_codec; | |
909 | tas->codec.node = of_node_get(node); | |
910 | ||
911 | if (aoa_codec_register(&tas->codec)) { | |
912 | goto detach; | |
913 | } | |
6a4f5787 BH |
914 | printk(KERN_DEBUG |
915 | "snd-aoa-codec-tas: tas found, addr 0x%02x on %s\n", | |
916 | addr, node->full_name); | |
f3d9478b JB |
917 | return 0; |
918 | detach: | |
919 | i2c_detach_client(&tas->i2c); | |
920 | fail: | |
30719206 | 921 | mutex_destroy(&tas->mtx); |
f3d9478b JB |
922 | kfree(tas); |
923 | return -EINVAL; | |
924 | } | |
925 | ||
926 | static int tas_i2c_attach(struct i2c_adapter *adapter) | |
927 | { | |
928 | struct device_node *busnode, *dev = NULL; | |
929 | struct pmac_i2c_bus *bus; | |
930 | ||
931 | bus = pmac_i2c_adapter_to_bus(adapter); | |
932 | if (bus == NULL) | |
933 | return -ENODEV; | |
934 | busnode = pmac_i2c_get_bus_node(bus); | |
935 | ||
936 | while ((dev = of_get_next_child(busnode, dev)) != NULL) { | |
937 | if (device_is_compatible(dev, "tas3004")) { | |
938 | u32 *addr; | |
939 | printk(KERN_DEBUG PFX "found tas3004\n"); | |
940 | addr = (u32 *) get_property(dev, "reg", NULL); | |
941 | if (!addr) | |
942 | continue; | |
943 | return tas_create(adapter, dev, ((*addr) >> 1) & 0x7f); | |
944 | } | |
945 | /* older machines have no 'codec' node with a 'compatible' | |
946 | * property that says 'tas3004', they just have a 'deq' | |
947 | * node without any such property... */ | |
948 | if (strcmp(dev->name, "deq") == 0) { | |
949 | u32 *_addr, addr; | |
950 | printk(KERN_DEBUG PFX "found 'deq' node\n"); | |
951 | _addr = (u32 *) get_property(dev, "i2c-address", NULL); | |
952 | if (!_addr) | |
953 | continue; | |
954 | addr = ((*_addr) >> 1) & 0x7f; | |
955 | /* now, if the address doesn't match any of the two | |
956 | * that a tas3004 can have, we cannot handle this. | |
957 | * I doubt it ever happens but hey. */ | |
958 | if (addr != 0x34 && addr != 0x35) | |
959 | continue; | |
960 | return tas_create(adapter, dev, addr); | |
961 | } | |
962 | } | |
963 | return -ENODEV; | |
964 | } | |
965 | ||
966 | static int tas_i2c_detach(struct i2c_client *client) | |
967 | { | |
968 | struct tas *tas = container_of(client, struct tas, i2c); | |
969 | int err; | |
970 | u8 tmp = TAS_ACR_ANALOG_PDOWN; | |
971 | ||
972 | if ((err = i2c_detach_client(client))) | |
973 | return err; | |
974 | aoa_codec_unregister(&tas->codec); | |
975 | of_node_put(tas->codec.node); | |
976 | ||
977 | /* power down codec chip */ | |
978 | tas_write_reg(tas, TAS_REG_ACR, 1, &tmp); | |
979 | ||
30719206 | 980 | mutex_destroy(&tas->mtx); |
f3d9478b JB |
981 | kfree(tas); |
982 | return 0; | |
983 | } | |
984 | ||
985 | static struct i2c_driver tas_driver = { | |
986 | .driver = { | |
987 | .name = "aoa_codec_tas", | |
988 | .owner = THIS_MODULE, | |
989 | }, | |
990 | .attach_adapter = tas_i2c_attach, | |
991 | .detach_client = tas_i2c_detach, | |
992 | }; | |
993 | ||
994 | static int __init tas_init(void) | |
995 | { | |
996 | return i2c_add_driver(&tas_driver); | |
997 | } | |
998 | ||
999 | static void __exit tas_exit(void) | |
1000 | { | |
1001 | i2c_del_driver(&tas_driver); | |
1002 | } | |
1003 | ||
1004 | module_init(tas_init); | |
1005 | module_exit(tas_exit); |