1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Apple Onboard Audio driver for Onyx codec |
4 | * |
5 | * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> |
6 | * |
7 | * This is a driver for the pcm3052 codec chip (codenamed Onyx) |
8 | * that is present in newer Apple hardware (with digital output). |
9 | * |
10 | * The Onyx codec has the following connections (listed by the bit |
11 | * to be used in aoa_codec.connected): |
12 | * 0: analog output |
13 | * 1: digital output |
14 | * 2: line input |
15 | * 3: microphone input |
16 | * Note that even though I know of no machine that has for example |
17 | * the digital output connected but not the analog, I have handled |
18 | * all the different cases in the code so that this driver may serve |
19 | * as a good example of what to do. |
20 | * |
21 | * NOTE: This driver assumes that there's at most one chip to be |
22 | * used with one alsa card, in form of creating all kinds |
23 | * of mixer elements without regard for their existence. |
24 | * But snd-aoa assumes that there's at most one card, so |
25 | * this means you can only have one onyx on a system. This |
26 | * should probably be fixed by changing the assumption of |
27 | * having just a single card on a system, and making the |
28 | * 'card' pointer accessible to anyone who needs it instead |
29 | * of hiding it in the aoa_snd_* functions... |
30 | */ |
31 | #include <linux/delay.h> |
32 | #include <linux/module.h> |
33 | #include <linux/of.h> |
34 | #include <linux/slab.h> |
35 | MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>" ); |
36 | MODULE_LICENSE("GPL" ); |
37 | MODULE_DESCRIPTION("pcm3052 (onyx) codec driver for snd-aoa" ); |
38 | |
39 | #include "onyx.h" |
40 | #include "../aoa.h" |
41 | #include "../soundbus/soundbus.h" |
42 | |
43 | |
44 | #define PFX "snd-aoa-codec-onyx: " |
45 | |
46 | struct onyx { |
47 | /* cache registers 65 to 80, they are write-only! */ |
48 | u8 cache[16]; |
49 | struct i2c_client *i2c; |
50 | struct aoa_codec codec; |
51 | u32 initialised:1, |
52 | spdif_locked:1, |
53 | analog_locked:1, |
54 | original_mute:2; |
55 | int open_count; |
56 | struct codec_info *codec_info; |
57 | |
58 | /* mutex serializes concurrent access to the device |
59 | * and this structure. |
60 | */ |
61 | struct mutex mutex; |
62 | }; |
63 | #define codec_to_onyx(c) container_of(c, struct onyx, codec) |
64 | |
65 | /* both return 0 if all ok, else on error */ |
66 | static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value) |
67 | { |
68 | s32 v; |
69 | |
70 | if (reg != ONYX_REG_CONTROL) { |
71 | *value = onyx->cache[reg-FIRSTREGISTER]; |
72 | return 0; |
73 | } |
74 | v = i2c_smbus_read_byte_data(client: onyx->i2c, command: reg); |
75 | if (v < 0) { |
76 | *value = 0; |
77 | return -1; |
78 | } |
79 | *value = (u8)v; |
80 | onyx->cache[ONYX_REG_CONTROL-FIRSTREGISTER] = *value; |
81 | return 0; |
82 | } |
83 | |
84 | static int onyx_write_register(struct onyx *onyx, u8 reg, u8 value) |
85 | { |
86 | int result; |
87 | |
88 | result = i2c_smbus_write_byte_data(client: onyx->i2c, command: reg, value); |
89 | if (!result) |
90 | onyx->cache[reg-FIRSTREGISTER] = value; |
91 | return result; |
92 | } |
93 | |
94 | /* alsa stuff */ |
95 | |
96 | static int onyx_dev_register(struct snd_device *dev) |
97 | { |
98 | return 0; |
99 | } |
100 | |
101 | static const struct snd_device_ops ops = { |
102 | .dev_register = onyx_dev_register, |
103 | }; |
104 | |
105 | /* this is necessary because most alsa mixer programs |
106 | * can't properly handle the negative range */ |
107 | #define VOLUME_RANGE_SHIFT 128 |
108 | |
109 | static int onyx_snd_vol_info(struct snd_kcontrol *kcontrol, |
110 | struct snd_ctl_elem_info *uinfo) |
111 | { |
112 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
113 | uinfo->count = 2; |
114 | uinfo->value.integer.min = -128 + VOLUME_RANGE_SHIFT; |
115 | uinfo->value.integer.max = -1 + VOLUME_RANGE_SHIFT; |
116 | return 0; |
117 | } |
118 | |
119 | static int onyx_snd_vol_get(struct snd_kcontrol *kcontrol, |
120 | struct snd_ctl_elem_value *ucontrol) |
121 | { |
122 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
123 | s8 l, r; |
124 | |
125 | mutex_lock(&onyx->mutex); |
126 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, value: &l); |
127 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, value: &r); |
128 | mutex_unlock(lock: &onyx->mutex); |
129 | |
130 | ucontrol->value.integer.value[0] = l + VOLUME_RANGE_SHIFT; |
131 | ucontrol->value.integer.value[1] = r + VOLUME_RANGE_SHIFT; |
132 | |
133 | return 0; |
134 | } |
135 | |
136 | static int onyx_snd_vol_put(struct snd_kcontrol *kcontrol, |
137 | struct snd_ctl_elem_value *ucontrol) |
138 | { |
139 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
140 | s8 l, r; |
141 | |
142 | if (ucontrol->value.integer.value[0] < -128 + VOLUME_RANGE_SHIFT || |
143 | ucontrol->value.integer.value[0] > -1 + VOLUME_RANGE_SHIFT) |
144 | return -EINVAL; |
145 | if (ucontrol->value.integer.value[1] < -128 + VOLUME_RANGE_SHIFT || |
146 | ucontrol->value.integer.value[1] > -1 + VOLUME_RANGE_SHIFT) |
147 | return -EINVAL; |
148 | |
149 | mutex_lock(&onyx->mutex); |
150 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, value: &l); |
151 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, value: &r); |
152 | |
153 | if (l + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[0] && |
154 | r + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[1]) { |
155 | mutex_unlock(lock: &onyx->mutex); |
156 | return 0; |
157 | } |
158 | |
159 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, |
160 | value: ucontrol->value.integer.value[0] |
161 | - VOLUME_RANGE_SHIFT); |
162 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, |
163 | value: ucontrol->value.integer.value[1] |
164 | - VOLUME_RANGE_SHIFT); |
165 | mutex_unlock(lock: &onyx->mutex); |
166 | |
167 | return 1; |
168 | } |
169 | |
170 | static const struct snd_kcontrol_new volume_control = { |
171 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
172 | .name = "Master Playback Volume" , |
173 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
174 | .info = onyx_snd_vol_info, |
175 | .get = onyx_snd_vol_get, |
176 | .put = onyx_snd_vol_put, |
177 | }; |
178 | |
179 | /* like above, this is necessary because a lot |
180 | * of alsa mixer programs don't handle ranges |
181 | * that don't start at 0 properly. |
182 | * even alsamixer is one of them... */ |
183 | #define INPUTGAIN_RANGE_SHIFT (-3) |
184 | |
185 | static int onyx_snd_inputgain_info(struct snd_kcontrol *kcontrol, |
186 | struct snd_ctl_elem_info *uinfo) |
187 | { |
188 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
189 | uinfo->count = 1; |
190 | uinfo->value.integer.min = 3 + INPUTGAIN_RANGE_SHIFT; |
191 | uinfo->value.integer.max = 28 + INPUTGAIN_RANGE_SHIFT; |
192 | return 0; |
193 | } |
194 | |
195 | static int onyx_snd_inputgain_get(struct snd_kcontrol *kcontrol, |
196 | struct snd_ctl_elem_value *ucontrol) |
197 | { |
198 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
199 | u8 ig; |
200 | |
201 | mutex_lock(&onyx->mutex); |
202 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, value: &ig); |
203 | mutex_unlock(lock: &onyx->mutex); |
204 | |
205 | ucontrol->value.integer.value[0] = |
206 | (ig & ONYX_ADC_PGA_GAIN_MASK) + INPUTGAIN_RANGE_SHIFT; |
207 | |
208 | return 0; |
209 | } |
210 | |
211 | static int onyx_snd_inputgain_put(struct snd_kcontrol *kcontrol, |
212 | struct snd_ctl_elem_value *ucontrol) |
213 | { |
214 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
215 | u8 v, n; |
216 | |
217 | if (ucontrol->value.integer.value[0] < 3 + INPUTGAIN_RANGE_SHIFT || |
218 | ucontrol->value.integer.value[0] > 28 + INPUTGAIN_RANGE_SHIFT) |
219 | return -EINVAL; |
220 | mutex_lock(&onyx->mutex); |
221 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, value: &v); |
222 | n = v; |
223 | n &= ~ONYX_ADC_PGA_GAIN_MASK; |
224 | n |= (ucontrol->value.integer.value[0] - INPUTGAIN_RANGE_SHIFT) |
225 | & ONYX_ADC_PGA_GAIN_MASK; |
226 | onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, value: n); |
227 | mutex_unlock(lock: &onyx->mutex); |
228 | |
229 | return n != v; |
230 | } |
231 | |
232 | static const struct snd_kcontrol_new inputgain_control = { |
233 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
234 | .name = "Master Capture Volume" , |
235 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
236 | .info = onyx_snd_inputgain_info, |
237 | .get = onyx_snd_inputgain_get, |
238 | .put = onyx_snd_inputgain_put, |
239 | }; |
240 | |
241 | static int onyx_snd_capture_source_info(struct snd_kcontrol *kcontrol, |
242 | struct snd_ctl_elem_info *uinfo) |
243 | { |
244 | static const char * const texts[] = { "Line-In" , "Microphone" }; |
245 | |
246 | return snd_ctl_enum_info(info: uinfo, channels: 1, items: 2, names: texts); |
247 | } |
248 | |
249 | static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol, |
250 | struct snd_ctl_elem_value *ucontrol) |
251 | { |
252 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
253 | s8 v; |
254 | |
255 | mutex_lock(&onyx->mutex); |
256 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, value: &v); |
257 | mutex_unlock(lock: &onyx->mutex); |
258 | |
259 | ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC); |
260 | |
261 | return 0; |
262 | } |
263 | |
264 | static void onyx_set_capture_source(struct onyx *onyx, int mic) |
265 | { |
266 | s8 v; |
267 | |
268 | mutex_lock(&onyx->mutex); |
269 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, value: &v); |
270 | v &= ~ONYX_ADC_INPUT_MIC; |
271 | if (mic) |
272 | v |= ONYX_ADC_INPUT_MIC; |
273 | onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, value: v); |
274 | mutex_unlock(lock: &onyx->mutex); |
275 | } |
276 | |
277 | static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol, |
278 | struct snd_ctl_elem_value *ucontrol) |
279 | { |
280 | if (ucontrol->value.enumerated.item[0] > 1) |
281 | return -EINVAL; |
282 | onyx_set_capture_source(snd_kcontrol_chip(kcontrol), |
283 | mic: ucontrol->value.enumerated.item[0]); |
284 | return 1; |
285 | } |
286 | |
287 | static const struct snd_kcontrol_new capture_source_control = { |
288 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
289 | /* If we name this 'Input Source', it properly shows up in |
290 | * alsamixer as a selection, * but it's shown under the |
291 | * 'Playback' category. |
292 | * If I name it 'Capture Source', it shows up in strange |
293 | * ways (two bools of which one can be selected at a |
294 | * time) but at least it's shown in the 'Capture' |
295 | * category. |
296 | * I was told that this was due to backward compatibility, |
297 | * but I don't understand then why the mangling is *not* |
298 | * done when I name it "Input Source"..... |
299 | */ |
300 | .name = "Capture Source" , |
301 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
302 | .info = onyx_snd_capture_source_info, |
303 | .get = onyx_snd_capture_source_get, |
304 | .put = onyx_snd_capture_source_put, |
305 | }; |
306 | |
307 | #define onyx_snd_mute_info snd_ctl_boolean_stereo_info |
308 | |
309 | static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol, |
310 | struct snd_ctl_elem_value *ucontrol) |
311 | { |
312 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
313 | u8 c; |
314 | |
315 | mutex_lock(&onyx->mutex); |
316 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, value: &c); |
317 | mutex_unlock(lock: &onyx->mutex); |
318 | |
319 | ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT); |
320 | ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT); |
321 | |
322 | return 0; |
323 | } |
324 | |
325 | static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol, |
326 | struct snd_ctl_elem_value *ucontrol) |
327 | { |
328 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
329 | u8 v = 0, c = 0; |
330 | int err = -EBUSY; |
331 | |
332 | mutex_lock(&onyx->mutex); |
333 | if (onyx->analog_locked) |
334 | goto out_unlock; |
335 | |
336 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, value: &v); |
337 | c = v; |
338 | c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT); |
339 | if (!ucontrol->value.integer.value[0]) |
340 | c |= ONYX_MUTE_LEFT; |
341 | if (!ucontrol->value.integer.value[1]) |
342 | c |= ONYX_MUTE_RIGHT; |
343 | err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, value: c); |
344 | |
345 | out_unlock: |
346 | mutex_unlock(lock: &onyx->mutex); |
347 | |
348 | return !err ? (v != c) : err; |
349 | } |
350 | |
351 | static const struct snd_kcontrol_new mute_control = { |
352 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
353 | .name = "Master Playback Switch" , |
354 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
355 | .info = onyx_snd_mute_info, |
356 | .get = onyx_snd_mute_get, |
357 | .put = onyx_snd_mute_put, |
358 | }; |
359 | |
360 | |
361 | #define onyx_snd_single_bit_info snd_ctl_boolean_mono_info |
362 | |
363 | #define FLAG_POLARITY_INVERT 1 |
364 | #define FLAG_SPDIFLOCK 2 |
365 | |
366 | static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol, |
367 | struct snd_ctl_elem_value *ucontrol) |
368 | { |
369 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
370 | u8 c; |
371 | long int pv = kcontrol->private_value; |
372 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; |
373 | u8 address = (pv >> 8) & 0xff; |
374 | u8 mask = pv & 0xff; |
375 | |
376 | mutex_lock(&onyx->mutex); |
377 | onyx_read_register(onyx, reg: address, value: &c); |
378 | mutex_unlock(lock: &onyx->mutex); |
379 | |
380 | ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity; |
381 | |
382 | return 0; |
383 | } |
384 | |
385 | static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol, |
386 | struct snd_ctl_elem_value *ucontrol) |
387 | { |
388 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
389 | u8 v = 0, c = 0; |
390 | int err; |
391 | long int pv = kcontrol->private_value; |
392 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; |
393 | u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK; |
394 | u8 address = (pv >> 8) & 0xff; |
395 | u8 mask = pv & 0xff; |
396 | |
397 | mutex_lock(&onyx->mutex); |
398 | if (spdiflock && onyx->spdif_locked) { |
399 | /* even if alsamixer doesn't care.. */ |
400 | err = -EBUSY; |
401 | goto out_unlock; |
402 | } |
403 | onyx_read_register(onyx, reg: address, value: &v); |
404 | c = v; |
405 | c &= ~(mask); |
406 | if (!!ucontrol->value.integer.value[0] ^ polarity) |
407 | c |= mask; |
408 | err = onyx_write_register(onyx, reg: address, value: c); |
409 | |
410 | out_unlock: |
411 | mutex_unlock(lock: &onyx->mutex); |
412 | |
413 | return !err ? (v != c) : err; |
414 | } |
415 | |
416 | #define SINGLE_BIT(n, type, description, address, mask, flags) \ |
417 | static const struct snd_kcontrol_new n##_control = { \ |
418 | .iface = SNDRV_CTL_ELEM_IFACE_##type, \ |
419 | .name = description, \ |
420 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ |
421 | .info = onyx_snd_single_bit_info, \ |
422 | .get = onyx_snd_single_bit_get, \ |
423 | .put = onyx_snd_single_bit_put, \ |
424 | .private_value = (flags << 16) | (address << 8) | mask \ |
425 | } |
426 | |
427 | SINGLE_BIT(spdif, |
428 | MIXER, |
429 | SNDRV_CTL_NAME_IEC958("" , PLAYBACK, SWITCH), |
430 | ONYX_REG_DIG_INFO4, |
431 | ONYX_SPDIF_ENABLE, |
432 | FLAG_SPDIFLOCK); |
433 | SINGLE_BIT(ovr1, |
434 | MIXER, |
435 | "Oversampling Rate" , |
436 | ONYX_REG_DAC_CONTROL, |
437 | ONYX_OVR1, |
438 | 0); |
439 | SINGLE_BIT(flt0, |
440 | MIXER, |
441 | "Fast Digital Filter Rolloff" , |
442 | ONYX_REG_DAC_FILTER, |
443 | ONYX_ROLLOFF_FAST, |
444 | FLAG_POLARITY_INVERT); |
445 | SINGLE_BIT(hpf, |
446 | MIXER, |
447 | "Highpass Filter" , |
448 | ONYX_REG_ADC_HPF_BYPASS, |
449 | ONYX_HPF_DISABLE, |
450 | FLAG_POLARITY_INVERT); |
451 | SINGLE_BIT(dm12, |
452 | MIXER, |
453 | "Digital De-Emphasis" , |
454 | ONYX_REG_DAC_DEEMPH, |
455 | ONYX_DIGDEEMPH_CTRL, |
456 | 0); |
457 | |
458 | static int onyx_spdif_info(struct snd_kcontrol *kcontrol, |
459 | struct snd_ctl_elem_info *uinfo) |
460 | { |
461 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
462 | uinfo->count = 1; |
463 | return 0; |
464 | } |
465 | |
466 | static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol, |
467 | struct snd_ctl_elem_value *ucontrol) |
468 | { |
469 | /* datasheet page 30, all others are 0 */ |
470 | ucontrol->value.iec958.status[0] = 0x3e; |
471 | ucontrol->value.iec958.status[1] = 0xff; |
472 | |
473 | ucontrol->value.iec958.status[3] = 0x3f; |
474 | ucontrol->value.iec958.status[4] = 0x0f; |
475 | |
476 | return 0; |
477 | } |
478 | |
479 | static const struct snd_kcontrol_new onyx_spdif_mask = { |
480 | .access = SNDRV_CTL_ELEM_ACCESS_READ, |
481 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
482 | .name = SNDRV_CTL_NAME_IEC958("" ,PLAYBACK,CON_MASK), |
483 | .info = onyx_spdif_info, |
484 | .get = onyx_spdif_mask_get, |
485 | }; |
486 | |
487 | static int onyx_spdif_get(struct snd_kcontrol *kcontrol, |
488 | struct snd_ctl_elem_value *ucontrol) |
489 | { |
490 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
491 | u8 v; |
492 | |
493 | mutex_lock(&onyx->mutex); |
494 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, value: &v); |
495 | ucontrol->value.iec958.status[0] = v & 0x3e; |
496 | |
497 | onyx_read_register(onyx, ONYX_REG_DIG_INFO2, value: &v); |
498 | ucontrol->value.iec958.status[1] = v; |
499 | |
500 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, value: &v); |
501 | ucontrol->value.iec958.status[3] = v & 0x3f; |
502 | |
503 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, value: &v); |
504 | ucontrol->value.iec958.status[4] = v & 0x0f; |
505 | mutex_unlock(lock: &onyx->mutex); |
506 | |
507 | return 0; |
508 | } |
509 | |
510 | static int onyx_spdif_put(struct snd_kcontrol *kcontrol, |
511 | struct snd_ctl_elem_value *ucontrol) |
512 | { |
513 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); |
514 | u8 v; |
515 | |
516 | mutex_lock(&onyx->mutex); |
517 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, value: &v); |
518 | v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e); |
519 | onyx_write_register(onyx, ONYX_REG_DIG_INFO1, value: v); |
520 | |
521 | v = ucontrol->value.iec958.status[1]; |
522 | onyx_write_register(onyx, ONYX_REG_DIG_INFO2, value: v); |
523 | |
524 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, value: &v); |
525 | v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f); |
526 | onyx_write_register(onyx, ONYX_REG_DIG_INFO3, value: v); |
527 | |
528 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, value: &v); |
529 | v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f); |
530 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, value: v); |
531 | mutex_unlock(lock: &onyx->mutex); |
532 | |
533 | return 1; |
534 | } |
535 | |
536 | static const struct snd_kcontrol_new onyx_spdif_ctrl = { |
537 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
538 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, |
539 | .name = SNDRV_CTL_NAME_IEC958("" ,PLAYBACK,DEFAULT), |
540 | .info = onyx_spdif_info, |
541 | .get = onyx_spdif_get, |
542 | .put = onyx_spdif_put, |
543 | }; |
544 | |
545 | /* our registers */ |
546 | |
547 | static const u8 register_map[] = { |
548 | ONYX_REG_DAC_ATTEN_LEFT, |
549 | ONYX_REG_DAC_ATTEN_RIGHT, |
550 | ONYX_REG_CONTROL, |
551 | ONYX_REG_DAC_CONTROL, |
552 | ONYX_REG_DAC_DEEMPH, |
553 | ONYX_REG_DAC_FILTER, |
554 | ONYX_REG_DAC_OUTPHASE, |
555 | ONYX_REG_ADC_CONTROL, |
556 | ONYX_REG_ADC_HPF_BYPASS, |
557 | ONYX_REG_DIG_INFO1, |
558 | ONYX_REG_DIG_INFO2, |
559 | ONYX_REG_DIG_INFO3, |
560 | ONYX_REG_DIG_INFO4 |
561 | }; |
562 | |
563 | static const u8 initial_values[ARRAY_SIZE(register_map)] = { |
564 | 0x80, 0x80, /* muted */ |
565 | ONYX_MRST | ONYX_SRST, /* but handled specially! */ |
566 | ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT, |
567 | 0, /* no deemphasis */ |
568 | ONYX_DAC_FILTER_ALWAYS, |
569 | ONYX_OUTPHASE_INVERTED, |
570 | (-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/ |
571 | ONYX_ADC_HPF_ALWAYS, |
572 | (1<<2), /* pcm audio */ |
573 | 2, /* category: pcm coder */ |
574 | 0, /* sampling frequency 44.1 kHz, clock accuracy level II */ |
575 | 1 /* 24 bit depth */ |
576 | }; |
577 | |
578 | /* reset registers of chip, either to initial or to previous values */ |
579 | static int onyx_register_init(struct onyx *onyx) |
580 | { |
581 | int i; |
582 | u8 val; |
583 | u8 regs[sizeof(initial_values)]; |
584 | |
585 | if (!onyx->initialised) { |
586 | memcpy(regs, initial_values, sizeof(initial_values)); |
587 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, value: &val)) |
588 | return -1; |
589 | val &= ~ONYX_SILICONVERSION; |
590 | val |= initial_values[3]; |
591 | regs[3] = val; |
592 | } else { |
593 | for (i=0; i<sizeof(register_map); i++) |
594 | regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER]; |
595 | } |
596 | |
597 | for (i=0; i<sizeof(register_map); i++) { |
598 | if (onyx_write_register(onyx, reg: register_map[i], value: regs[i])) |
599 | return -1; |
600 | } |
601 | onyx->initialised = 1; |
602 | return 0; |
603 | } |
604 | |
605 | static struct transfer_info onyx_transfers[] = { |
606 | /* this is first so we can skip it if no input is present... |
607 | * No hardware exists with that, but it's here as an example |
608 | * of what to do :) */ |
609 | { |
610 | /* analog input */ |
611 | .formats = SNDRV_PCM_FMTBIT_S8 | |
612 | SNDRV_PCM_FMTBIT_S16_BE | |
613 | SNDRV_PCM_FMTBIT_S24_BE, |
614 | .rates = SNDRV_PCM_RATE_8000_96000, |
615 | .transfer_in = 1, |
616 | .must_be_clock_source = 0, |
617 | .tag = 0, |
618 | }, |
619 | { |
620 | /* if analog and digital are currently off, anything should go, |
621 | * so this entry describes everything we can do... */ |
622 | .formats = SNDRV_PCM_FMTBIT_S8 | |
623 | SNDRV_PCM_FMTBIT_S16_BE | |
624 | SNDRV_PCM_FMTBIT_S24_BE |
625 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE |
626 | | SNDRV_PCM_FMTBIT_COMPRESSED_16BE |
627 | #endif |
628 | , |
629 | .rates = SNDRV_PCM_RATE_8000_96000, |
630 | .tag = 0, |
631 | }, |
632 | { |
633 | /* analog output */ |
634 | .formats = SNDRV_PCM_FMTBIT_S8 | |
635 | SNDRV_PCM_FMTBIT_S16_BE | |
636 | SNDRV_PCM_FMTBIT_S24_BE, |
637 | .rates = SNDRV_PCM_RATE_8000_96000, |
638 | .transfer_in = 0, |
639 | .must_be_clock_source = 0, |
640 | .tag = 1, |
641 | }, |
642 | { |
643 | /* digital pcm output, also possible for analog out */ |
644 | .formats = SNDRV_PCM_FMTBIT_S8 | |
645 | SNDRV_PCM_FMTBIT_S16_BE | |
646 | SNDRV_PCM_FMTBIT_S24_BE, |
647 | .rates = SNDRV_PCM_RATE_32000 | |
648 | SNDRV_PCM_RATE_44100 | |
649 | SNDRV_PCM_RATE_48000, |
650 | .transfer_in = 0, |
651 | .must_be_clock_source = 0, |
652 | .tag = 2, |
653 | }, |
654 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE |
655 | /* Once alsa gets supports for this kind of thing we can add it... */ |
656 | { |
657 | /* digital compressed output */ |
658 | .formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE, |
659 | .rates = SNDRV_PCM_RATE_32000 | |
660 | SNDRV_PCM_RATE_44100 | |
661 | SNDRV_PCM_RATE_48000, |
662 | .tag = 2, |
663 | }, |
664 | #endif |
665 | {} |
666 | }; |
667 | |
668 | static int onyx_usable(struct codec_info_item *cii, |
669 | struct transfer_info *ti, |
670 | struct transfer_info *out) |
671 | { |
672 | u8 v; |
673 | struct onyx *onyx = cii->codec_data; |
674 | int spdif_enabled, analog_enabled; |
675 | |
676 | mutex_lock(&onyx->mutex); |
677 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, value: &v); |
678 | spdif_enabled = !!(v & ONYX_SPDIF_ENABLE); |
679 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, value: &v); |
680 | analog_enabled = |
681 | (v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT)) |
682 | != (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT); |
683 | mutex_unlock(lock: &onyx->mutex); |
684 | |
685 | switch (ti->tag) { |
686 | case 0: return 1; |
687 | case 1: return analog_enabled; |
688 | case 2: return spdif_enabled; |
689 | } |
690 | return 1; |
691 | } |
692 | |
693 | static int onyx_prepare(struct codec_info_item *cii, |
694 | struct bus_info *bi, |
695 | struct snd_pcm_substream *substream) |
696 | { |
697 | u8 v; |
698 | struct onyx *onyx = cii->codec_data; |
699 | int err = -EBUSY; |
700 | |
701 | mutex_lock(&onyx->mutex); |
702 | |
703 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE |
704 | if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) { |
705 | /* mute and lock analog output */ |
706 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); |
707 | if (onyx_write_register(onyx, |
708 | ONYX_REG_DAC_CONTROL, |
709 | v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT)) |
710 | goto out_unlock; |
711 | onyx->analog_locked = 1; |
712 | err = 0; |
713 | goto out_unlock; |
714 | } |
715 | #endif |
716 | switch (substream->runtime->rate) { |
717 | case 32000: |
718 | case 44100: |
719 | case 48000: |
720 | /* these rates are ok for all outputs */ |
721 | /* FIXME: program spdif channel control bits here so that |
722 | * userspace doesn't have to if it only plays pcm! */ |
723 | err = 0; |
724 | goto out_unlock; |
725 | default: |
726 | /* got some rate that the digital output can't do, |
727 | * so disable and lock it */ |
728 | onyx_read_register(onyx: cii->codec_data, ONYX_REG_DIG_INFO4, value: &v); |
729 | if (onyx_write_register(onyx, |
730 | ONYX_REG_DIG_INFO4, |
731 | value: v & ~ONYX_SPDIF_ENABLE)) |
732 | goto out_unlock; |
733 | onyx->spdif_locked = 1; |
734 | err = 0; |
735 | goto out_unlock; |
736 | } |
737 | |
738 | out_unlock: |
739 | mutex_unlock(lock: &onyx->mutex); |
740 | |
741 | return err; |
742 | } |
743 | |
744 | static int onyx_open(struct codec_info_item *cii, |
745 | struct snd_pcm_substream *substream) |
746 | { |
747 | struct onyx *onyx = cii->codec_data; |
748 | |
749 | mutex_lock(&onyx->mutex); |
750 | onyx->open_count++; |
751 | mutex_unlock(lock: &onyx->mutex); |
752 | |
753 | return 0; |
754 | } |
755 | |
756 | static int onyx_close(struct codec_info_item *cii, |
757 | struct snd_pcm_substream *substream) |
758 | { |
759 | struct onyx *onyx = cii->codec_data; |
760 | |
761 | mutex_lock(&onyx->mutex); |
762 | onyx->open_count--; |
763 | if (!onyx->open_count) |
764 | onyx->spdif_locked = onyx->analog_locked = 0; |
765 | mutex_unlock(lock: &onyx->mutex); |
766 | |
767 | return 0; |
768 | } |
769 | |
770 | static int onyx_switch_clock(struct codec_info_item *cii, |
771 | enum clock_switch what) |
772 | { |
773 | struct onyx *onyx = cii->codec_data; |
774 | |
775 | mutex_lock(&onyx->mutex); |
776 | /* this *MUST* be more elaborate later... */ |
777 | switch (what) { |
778 | case CLOCK_SWITCH_PREPARE_SLAVE: |
779 | onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio); |
780 | break; |
781 | case CLOCK_SWITCH_SLAVE: |
782 | onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio); |
783 | break; |
784 | default: /* silence warning */ |
785 | break; |
786 | } |
787 | mutex_unlock(lock: &onyx->mutex); |
788 | |
789 | return 0; |
790 | } |
791 | |
792 | #ifdef CONFIG_PM |
793 | |
794 | static int onyx_suspend(struct codec_info_item *cii, pm_message_t state) |
795 | { |
796 | struct onyx *onyx = cii->codec_data; |
797 | u8 v; |
798 | int err = -ENXIO; |
799 | |
800 | mutex_lock(&onyx->mutex); |
801 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, value: &v)) |
802 | goto out_unlock; |
803 | onyx_write_register(onyx, ONYX_REG_CONTROL, value: v | ONYX_ADPSV | ONYX_DAPSV); |
804 | /* Apple does a sleep here but the datasheet says to do it on resume */ |
805 | err = 0; |
806 | out_unlock: |
807 | mutex_unlock(lock: &onyx->mutex); |
808 | |
809 | return err; |
810 | } |
811 | |
812 | static int onyx_resume(struct codec_info_item *cii) |
813 | { |
814 | struct onyx *onyx = cii->codec_data; |
815 | u8 v; |
816 | int err = -ENXIO; |
817 | |
818 | mutex_lock(&onyx->mutex); |
819 | |
820 | /* reset codec */ |
821 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); |
822 | msleep(msecs: 1); |
823 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); |
824 | msleep(msecs: 1); |
825 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); |
826 | msleep(msecs: 1); |
827 | |
828 | /* take codec out of suspend (if it still is after reset) */ |
829 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, value: &v)) |
830 | goto out_unlock; |
831 | onyx_write_register(onyx, ONYX_REG_CONTROL, value: v & ~(ONYX_ADPSV | ONYX_DAPSV)); |
832 | /* FIXME: should divide by sample rate, but 8k is the lowest we go */ |
833 | msleep(msecs: 2205000/8000); |
834 | /* reset all values */ |
835 | onyx_register_init(onyx); |
836 | err = 0; |
837 | out_unlock: |
838 | mutex_unlock(lock: &onyx->mutex); |
839 | |
840 | return err; |
841 | } |
842 | |
843 | #endif /* CONFIG_PM */ |
844 | |
845 | static struct codec_info onyx_codec_info = { |
846 | .transfers = onyx_transfers, |
847 | .sysclock_factor = 256, |
848 | .bus_factor = 64, |
849 | .owner = THIS_MODULE, |
850 | .usable = onyx_usable, |
851 | .prepare = onyx_prepare, |
852 | .open = onyx_open, |
853 | .close = onyx_close, |
854 | .switch_clock = onyx_switch_clock, |
855 | #ifdef CONFIG_PM |
856 | .suspend = onyx_suspend, |
857 | .resume = onyx_resume, |
858 | #endif |
859 | }; |
860 | |
861 | static int onyx_init_codec(struct aoa_codec *codec) |
862 | { |
863 | struct onyx *onyx = codec_to_onyx(codec); |
864 | struct snd_kcontrol *ctl; |
865 | struct codec_info *ci = &onyx_codec_info; |
866 | u8 v; |
867 | int err; |
868 | |
869 | if (!onyx->codec.gpio || !onyx->codec.gpio->methods) { |
870 | printk(KERN_ERR PFX "gpios not assigned!!\n" ); |
871 | return -EINVAL; |
872 | } |
873 | |
874 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); |
875 | msleep(msecs: 1); |
876 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); |
877 | msleep(msecs: 1); |
878 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); |
879 | msleep(msecs: 1); |
880 | |
881 | if (onyx_register_init(onyx)) { |
882 | printk(KERN_ERR PFX "failed to initialise onyx registers\n" ); |
883 | return -ENODEV; |
884 | } |
885 | |
886 | if (aoa_snd_device_new(type: SNDRV_DEV_CODEC, device_data: onyx, ops: &ops)) { |
887 | printk(KERN_ERR PFX "failed to create onyx snd device!\n" ); |
888 | return -ENODEV; |
889 | } |
890 | |
891 | /* nothing connected? what a joke! */ |
892 | if ((onyx->codec.connected & 0xF) == 0) |
893 | return -ENOTCONN; |
894 | |
895 | /* if no inputs are present... */ |
896 | if ((onyx->codec.connected & 0xC) == 0) { |
897 | if (!onyx->codec_info) |
898 | onyx->codec_info = kmalloc(size: sizeof(struct codec_info), GFP_KERNEL); |
899 | if (!onyx->codec_info) |
900 | return -ENOMEM; |
901 | ci = onyx->codec_info; |
902 | *ci = onyx_codec_info; |
903 | ci->transfers++; |
904 | } |
905 | |
906 | /* if no outputs are present... */ |
907 | if ((onyx->codec.connected & 3) == 0) { |
908 | if (!onyx->codec_info) |
909 | onyx->codec_info = kmalloc(size: sizeof(struct codec_info), GFP_KERNEL); |
910 | if (!onyx->codec_info) |
911 | return -ENOMEM; |
912 | ci = onyx->codec_info; |
913 | /* this is fine as there have to be inputs |
914 | * if we end up in this part of the code */ |
915 | *ci = onyx_codec_info; |
916 | ci->transfers[1].formats = 0; |
917 | } |
918 | |
919 | if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev, |
920 | aoa_get_card(), |
921 | ci, onyx)) { |
922 | printk(KERN_ERR PFX "error creating onyx pcm\n" ); |
923 | return -ENODEV; |
924 | } |
925 | #define ADDCTL(n) \ |
926 | do { \ |
927 | ctl = snd_ctl_new1(&n, onyx); \ |
928 | if (ctl) { \ |
929 | ctl->id.device = \ |
930 | onyx->codec.soundbus_dev->pcm->device; \ |
931 | err = aoa_snd_ctl_add(ctl); \ |
932 | if (err) \ |
933 | goto error; \ |
934 | } \ |
935 | } while (0) |
936 | |
937 | if (onyx->codec.soundbus_dev->pcm) { |
938 | /* give the user appropriate controls |
939 | * depending on what inputs are connected */ |
940 | if ((onyx->codec.connected & 0xC) == 0xC) |
941 | ADDCTL(capture_source_control); |
942 | else if (onyx->codec.connected & 4) |
943 | onyx_set_capture_source(onyx, mic: 0); |
944 | else |
945 | onyx_set_capture_source(onyx, mic: 1); |
946 | if (onyx->codec.connected & 0xC) |
947 | ADDCTL(inputgain_control); |
948 | |
949 | /* depending on what output is connected, |
950 | * give the user appropriate controls */ |
951 | if (onyx->codec.connected & 1) { |
952 | ADDCTL(volume_control); |
953 | ADDCTL(mute_control); |
954 | ADDCTL(ovr1_control); |
955 | ADDCTL(flt0_control); |
956 | ADDCTL(hpf_control); |
957 | ADDCTL(dm12_control); |
958 | /* spdif control defaults to off */ |
959 | } |
960 | if (onyx->codec.connected & 2) { |
961 | ADDCTL(onyx_spdif_mask); |
962 | ADDCTL(onyx_spdif_ctrl); |
963 | } |
964 | if ((onyx->codec.connected & 3) == 3) |
965 | ADDCTL(spdif_control); |
966 | /* if only S/PDIF is connected, enable it unconditionally */ |
967 | if ((onyx->codec.connected & 3) == 2) { |
968 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, value: &v); |
969 | v |= ONYX_SPDIF_ENABLE; |
970 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, value: v); |
971 | } |
972 | } |
973 | #undef ADDCTL |
974 | printk(KERN_INFO PFX "attached to onyx codec via i2c\n" ); |
975 | |
976 | return 0; |
977 | error: |
978 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); |
979 | snd_device_free(card: aoa_get_card(), device_data: onyx); |
980 | return err; |
981 | } |
982 | |
983 | static void onyx_exit_codec(struct aoa_codec *codec) |
984 | { |
985 | struct onyx *onyx = codec_to_onyx(codec); |
986 | |
987 | if (!onyx->codec.soundbus_dev) { |
988 | printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n" ); |
989 | return; |
990 | } |
991 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); |
992 | } |
993 | |
994 | static int onyx_i2c_probe(struct i2c_client *client) |
995 | { |
996 | struct device_node *node = client->dev.of_node; |
997 | struct onyx *onyx; |
998 | u8 dummy; |
999 | |
1000 | onyx = kzalloc(size: sizeof(struct onyx), GFP_KERNEL); |
1001 | |
1002 | if (!onyx) |
1003 | return -ENOMEM; |
1004 | |
1005 | mutex_init(&onyx->mutex); |
1006 | onyx->i2c = client; |
1007 | i2c_set_clientdata(client, data: onyx); |
1008 | |
1009 | /* we try to read from register ONYX_REG_CONTROL |
1010 | * to check if the codec is present */ |
1011 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, value: &dummy) != 0) { |
1012 | printk(KERN_ERR PFX "failed to read control register\n" ); |
1013 | goto fail; |
1014 | } |
1015 | |
1016 | strscpy(onyx->codec.name, "onyx" , MAX_CODEC_NAME_LEN); |
1017 | onyx->codec.owner = THIS_MODULE; |
1018 | onyx->codec.init = onyx_init_codec; |
1019 | onyx->codec.exit = onyx_exit_codec; |
1020 | onyx->codec.node = of_node_get(node); |
1021 | |
1022 | if (aoa_codec_register(codec: &onyx->codec)) { |
1023 | goto fail; |
1024 | } |
1025 | printk(KERN_DEBUG PFX "created and attached onyx instance\n" ); |
1026 | return 0; |
1027 | fail: |
1028 | kfree(objp: onyx); |
1029 | return -ENODEV; |
1030 | } |
1031 | |
1032 | static void onyx_i2c_remove(struct i2c_client *client) |
1033 | { |
1034 | struct onyx *onyx = i2c_get_clientdata(client); |
1035 | |
1036 | aoa_codec_unregister(codec: &onyx->codec); |
1037 | of_node_put(node: onyx->codec.node); |
1038 | kfree(objp: onyx->codec_info); |
1039 | kfree(objp: onyx); |
1040 | } |
1041 | |
1042 | static const struct i2c_device_id onyx_i2c_id[] = { |
1043 | { "MAC,pcm3052" , 0 }, |
1044 | { } |
1045 | }; |
1046 | MODULE_DEVICE_TABLE(i2c,onyx_i2c_id); |
1047 | |
1048 | static struct i2c_driver onyx_driver = { |
1049 | .driver = { |
1050 | .name = "aoa_codec_onyx" , |
1051 | }, |
1052 | .probe = onyx_i2c_probe, |
1053 | .remove = onyx_i2c_remove, |
1054 | .id_table = onyx_i2c_id, |
1055 | }; |
1056 | |
1057 | module_i2c_driver(onyx_driver); |
1058 | |