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f3d9478b JB |
1 | /* |
2 | * Apple Onboard Audio driver for Onyx codec | |
3 | * | |
4 | * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> | |
5 | * | |
6 | * GPL v2, can be found in COPYING. | |
7 | * | |
8 | * | |
9 | * This is a driver for the pcm3052 codec chip (codenamed Onyx) | |
10 | * that is present in newer Apple hardware (with digital output). | |
11 | * | |
12 | * The Onyx codec has the following connections (listed by the bit | |
13 | * to be used in aoa_codec.connected): | |
14 | * 0: analog output | |
15 | * 1: digital output | |
16 | * 2: line input | |
17 | * 3: microphone input | |
18 | * Note that even though I know of no machine that has for example | |
19 | * the digital output connected but not the analog, I have handled | |
20 | * all the different cases in the code so that this driver may serve | |
21 | * as a good example of what to do. | |
22 | * | |
23 | * NOTE: This driver assumes that there's at most one chip to be | |
24 | * used with one alsa card, in form of creating all kinds | |
25 | * of mixer elements without regard for their existence. | |
26 | * But snd-aoa assumes that there's at most one card, so | |
27 | * this means you can only have one onyx on a system. This | |
28 | * should probably be fixed by changing the assumption of | |
29 | * having just a single card on a system, and making the | |
30 | * 'card' pointer accessible to anyone who needs it instead | |
31 | * of hiding it in the aoa_snd_* functions... | |
32 | * | |
33 | */ | |
34 | #include <linux/delay.h> | |
35 | #include <linux/module.h> | |
36 | MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>"); | |
37 | MODULE_LICENSE("GPL"); | |
38 | MODULE_DESCRIPTION("pcm3052 (onyx) codec driver for snd-aoa"); | |
39 | ||
888dcb7c | 40 | #include "onyx.h" |
f3d9478b JB |
41 | #include "../aoa.h" |
42 | #include "../soundbus/soundbus.h" | |
43 | ||
44 | ||
45 | #define PFX "snd-aoa-codec-onyx: " | |
46 | ||
47 | struct onyx { | |
48 | /* cache registers 65 to 80, they are write-only! */ | |
49 | u8 cache[16]; | |
cfbf1eec | 50 | struct i2c_client *i2c; |
f3d9478b JB |
51 | struct aoa_codec codec; |
52 | u32 initialised:1, | |
53 | spdif_locked:1, | |
54 | analog_locked:1, | |
55 | original_mute:2; | |
56 | int open_count; | |
57 | struct codec_info *codec_info; | |
58 | ||
59 | /* mutex serializes concurrent access to the device | |
60 | * and this structure. | |
61 | */ | |
62 | struct mutex mutex; | |
63 | }; | |
64 | #define codec_to_onyx(c) container_of(c, struct onyx, codec) | |
65 | ||
66 | /* both return 0 if all ok, else on error */ | |
67 | static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value) | |
68 | { | |
69 | s32 v; | |
70 | ||
71 | if (reg != ONYX_REG_CONTROL) { | |
72 | *value = onyx->cache[reg-FIRSTREGISTER]; | |
73 | return 0; | |
74 | } | |
cfbf1eec | 75 | v = i2c_smbus_read_byte_data(onyx->i2c, reg); |
f3d9478b JB |
76 | if (v < 0) |
77 | return -1; | |
78 | *value = (u8)v; | |
79 | onyx->cache[ONYX_REG_CONTROL-FIRSTREGISTER] = *value; | |
80 | return 0; | |
81 | } | |
82 | ||
83 | static int onyx_write_register(struct onyx *onyx, u8 reg, u8 value) | |
84 | { | |
85 | int result; | |
86 | ||
cfbf1eec | 87 | result = i2c_smbus_write_byte_data(onyx->i2c, reg, value); |
f3d9478b JB |
88 | if (!result) |
89 | onyx->cache[reg-FIRSTREGISTER] = value; | |
90 | return result; | |
91 | } | |
92 | ||
93 | /* alsa stuff */ | |
94 | ||
95 | static int onyx_dev_register(struct snd_device *dev) | |
96 | { | |
97 | return 0; | |
98 | } | |
99 | ||
100 | static struct snd_device_ops ops = { | |
101 | .dev_register = onyx_dev_register, | |
102 | }; | |
103 | ||
104 | /* this is necessary because most alsa mixer programs | |
105 | * can't properly handle the negative range */ | |
106 | #define VOLUME_RANGE_SHIFT 128 | |
107 | ||
108 | static int onyx_snd_vol_info(struct snd_kcontrol *kcontrol, | |
109 | struct snd_ctl_elem_info *uinfo) | |
110 | { | |
111 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
112 | uinfo->count = 2; | |
113 | uinfo->value.integer.min = -128 + VOLUME_RANGE_SHIFT; | |
114 | uinfo->value.integer.max = -1 + VOLUME_RANGE_SHIFT; | |
115 | return 0; | |
116 | } | |
117 | ||
118 | static int onyx_snd_vol_get(struct snd_kcontrol *kcontrol, | |
119 | struct snd_ctl_elem_value *ucontrol) | |
120 | { | |
121 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
122 | s8 l, r; | |
123 | ||
124 | mutex_lock(&onyx->mutex); | |
125 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l); | |
126 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r); | |
127 | mutex_unlock(&onyx->mutex); | |
128 | ||
129 | ucontrol->value.integer.value[0] = l + VOLUME_RANGE_SHIFT; | |
130 | ucontrol->value.integer.value[1] = r + VOLUME_RANGE_SHIFT; | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | static int onyx_snd_vol_put(struct snd_kcontrol *kcontrol, | |
136 | struct snd_ctl_elem_value *ucontrol) | |
137 | { | |
138 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
139 | s8 l, r; | |
140 | ||
498ade1a TI |
141 | if (ucontrol->value.integer.value[0] < -128 + VOLUME_RANGE_SHIFT || |
142 | ucontrol->value.integer.value[0] > -1 + VOLUME_RANGE_SHIFT) | |
143 | return -EINVAL; | |
144 | if (ucontrol->value.integer.value[1] < -128 + VOLUME_RANGE_SHIFT || | |
145 | ucontrol->value.integer.value[1] > -1 + VOLUME_RANGE_SHIFT) | |
146 | return -EINVAL; | |
147 | ||
f3d9478b JB |
148 | mutex_lock(&onyx->mutex); |
149 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l); | |
150 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r); | |
151 | ||
152 | if (l + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[0] && | |
153 | r + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[1]) { | |
154 | mutex_unlock(&onyx->mutex); | |
155 | return 0; | |
156 | } | |
157 | ||
158 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, | |
159 | ucontrol->value.integer.value[0] | |
160 | - VOLUME_RANGE_SHIFT); | |
161 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, | |
162 | ucontrol->value.integer.value[1] | |
163 | - VOLUME_RANGE_SHIFT); | |
164 | mutex_unlock(&onyx->mutex); | |
165 | ||
166 | return 1; | |
167 | } | |
168 | ||
169 | static struct snd_kcontrol_new volume_control = { | |
170 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
171 | .name = "Master Playback Volume", | |
172 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
173 | .info = onyx_snd_vol_info, | |
174 | .get = onyx_snd_vol_get, | |
175 | .put = onyx_snd_vol_put, | |
176 | }; | |
177 | ||
178 | /* like above, this is necessary because a lot | |
179 | * of alsa mixer programs don't handle ranges | |
180 | * that don't start at 0 properly. | |
181 | * even alsamixer is one of them... */ | |
182 | #define INPUTGAIN_RANGE_SHIFT (-3) | |
183 | ||
184 | static int onyx_snd_inputgain_info(struct snd_kcontrol *kcontrol, | |
185 | struct snd_ctl_elem_info *uinfo) | |
186 | { | |
187 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
188 | uinfo->count = 1; | |
189 | uinfo->value.integer.min = 3 + INPUTGAIN_RANGE_SHIFT; | |
190 | uinfo->value.integer.max = 28 + INPUTGAIN_RANGE_SHIFT; | |
191 | return 0; | |
192 | } | |
193 | ||
194 | static int onyx_snd_inputgain_get(struct snd_kcontrol *kcontrol, | |
195 | struct snd_ctl_elem_value *ucontrol) | |
196 | { | |
197 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
198 | u8 ig; | |
199 | ||
200 | mutex_lock(&onyx->mutex); | |
201 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &ig); | |
202 | mutex_unlock(&onyx->mutex); | |
203 | ||
204 | ucontrol->value.integer.value[0] = | |
205 | (ig & ONYX_ADC_PGA_GAIN_MASK) + INPUTGAIN_RANGE_SHIFT; | |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
210 | static int onyx_snd_inputgain_put(struct snd_kcontrol *kcontrol, | |
211 | struct snd_ctl_elem_value *ucontrol) | |
212 | { | |
213 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
214 | u8 v, n; | |
215 | ||
498ade1a TI |
216 | if (ucontrol->value.integer.value[0] < 3 + INPUTGAIN_RANGE_SHIFT || |
217 | ucontrol->value.integer.value[0] > 28 + INPUTGAIN_RANGE_SHIFT) | |
218 | return -EINVAL; | |
f3d9478b JB |
219 | mutex_lock(&onyx->mutex); |
220 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
221 | n = v; | |
222 | n &= ~ONYX_ADC_PGA_GAIN_MASK; | |
223 | n |= (ucontrol->value.integer.value[0] - INPUTGAIN_RANGE_SHIFT) | |
224 | & ONYX_ADC_PGA_GAIN_MASK; | |
225 | onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, n); | |
226 | mutex_unlock(&onyx->mutex); | |
227 | ||
228 | return n != v; | |
229 | } | |
230 | ||
231 | static struct snd_kcontrol_new inputgain_control = { | |
232 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
233 | .name = "Master Capture Volume", | |
234 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
235 | .info = onyx_snd_inputgain_info, | |
236 | .get = onyx_snd_inputgain_get, | |
237 | .put = onyx_snd_inputgain_put, | |
238 | }; | |
239 | ||
240 | static int onyx_snd_capture_source_info(struct snd_kcontrol *kcontrol, | |
241 | struct snd_ctl_elem_info *uinfo) | |
242 | { | |
243 | static char *texts[] = { "Line-In", "Microphone" }; | |
244 | ||
245 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
246 | uinfo->count = 1; | |
247 | uinfo->value.enumerated.items = 2; | |
248 | if (uinfo->value.enumerated.item > 1) | |
249 | uinfo->value.enumerated.item = 1; | |
250 | strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); | |
251 | return 0; | |
252 | } | |
253 | ||
254 | static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol, | |
255 | struct snd_ctl_elem_value *ucontrol) | |
256 | { | |
257 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
258 | s8 v; | |
259 | ||
260 | mutex_lock(&onyx->mutex); | |
261 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
262 | mutex_unlock(&onyx->mutex); | |
263 | ||
264 | ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC); | |
265 | ||
266 | return 0; | |
267 | } | |
268 | ||
269 | static void onyx_set_capture_source(struct onyx *onyx, int mic) | |
270 | { | |
271 | s8 v; | |
272 | ||
273 | mutex_lock(&onyx->mutex); | |
274 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
275 | v &= ~ONYX_ADC_INPUT_MIC; | |
276 | if (mic) | |
277 | v |= ONYX_ADC_INPUT_MIC; | |
278 | onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, v); | |
279 | mutex_unlock(&onyx->mutex); | |
280 | } | |
281 | ||
282 | static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol, | |
283 | struct snd_ctl_elem_value *ucontrol) | |
284 | { | |
498ade1a TI |
285 | if (ucontrol->value.enumerated.item[0] > 1) |
286 | return -EINVAL; | |
f3d9478b JB |
287 | onyx_set_capture_source(snd_kcontrol_chip(kcontrol), |
288 | ucontrol->value.enumerated.item[0]); | |
289 | return 1; | |
290 | } | |
291 | ||
292 | static struct snd_kcontrol_new capture_source_control = { | |
293 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
294 | /* If we name this 'Input Source', it properly shows up in | |
888dcb7c | 295 | * alsamixer as a selection, * but it's shown under the |
f3d9478b JB |
296 | * 'Playback' category. |
297 | * If I name it 'Capture Source', it shows up in strange | |
298 | * ways (two bools of which one can be selected at a | |
299 | * time) but at least it's shown in the 'Capture' | |
300 | * category. | |
301 | * I was told that this was due to backward compatibility, | |
302 | * but I don't understand then why the mangling is *not* | |
303 | * done when I name it "Input Source"..... | |
304 | */ | |
305 | .name = "Capture Source", | |
306 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
307 | .info = onyx_snd_capture_source_info, | |
308 | .get = onyx_snd_capture_source_get, | |
309 | .put = onyx_snd_capture_source_put, | |
310 | }; | |
311 | ||
a5ce8890 | 312 | #define onyx_snd_mute_info snd_ctl_boolean_stereo_info |
f3d9478b JB |
313 | |
314 | static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol, | |
315 | struct snd_ctl_elem_value *ucontrol) | |
316 | { | |
317 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
318 | u8 c; | |
319 | ||
320 | mutex_lock(&onyx->mutex); | |
321 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c); | |
322 | mutex_unlock(&onyx->mutex); | |
323 | ||
324 | ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT); | |
325 | ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT); | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
330 | static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol, | |
331 | struct snd_ctl_elem_value *ucontrol) | |
332 | { | |
333 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
334 | u8 v = 0, c = 0; | |
335 | int err = -EBUSY; | |
336 | ||
337 | mutex_lock(&onyx->mutex); | |
338 | if (onyx->analog_locked) | |
339 | goto out_unlock; | |
340 | ||
341 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
342 | c = v; | |
343 | c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT); | |
344 | if (!ucontrol->value.integer.value[0]) | |
345 | c |= ONYX_MUTE_LEFT; | |
346 | if (!ucontrol->value.integer.value[1]) | |
347 | c |= ONYX_MUTE_RIGHT; | |
348 | err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c); | |
349 | ||
350 | out_unlock: | |
351 | mutex_unlock(&onyx->mutex); | |
352 | ||
353 | return !err ? (v != c) : err; | |
354 | } | |
355 | ||
356 | static struct snd_kcontrol_new mute_control = { | |
357 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
358 | .name = "Master Playback Switch", | |
359 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
360 | .info = onyx_snd_mute_info, | |
361 | .get = onyx_snd_mute_get, | |
362 | .put = onyx_snd_mute_put, | |
363 | }; | |
364 | ||
365 | ||
a5ce8890 | 366 | #define onyx_snd_single_bit_info snd_ctl_boolean_mono_info |
f3d9478b JB |
367 | |
368 | #define FLAG_POLARITY_INVERT 1 | |
369 | #define FLAG_SPDIFLOCK 2 | |
370 | ||
371 | static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol, | |
372 | struct snd_ctl_elem_value *ucontrol) | |
373 | { | |
374 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
375 | u8 c; | |
376 | long int pv = kcontrol->private_value; | |
377 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; | |
378 | u8 address = (pv >> 8) & 0xff; | |
379 | u8 mask = pv & 0xff; | |
380 | ||
381 | mutex_lock(&onyx->mutex); | |
382 | onyx_read_register(onyx, address, &c); | |
383 | mutex_unlock(&onyx->mutex); | |
384 | ||
385 | ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity; | |
386 | ||
387 | return 0; | |
388 | } | |
389 | ||
390 | static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol, | |
391 | struct snd_ctl_elem_value *ucontrol) | |
392 | { | |
393 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
394 | u8 v = 0, c = 0; | |
395 | int err; | |
396 | long int pv = kcontrol->private_value; | |
397 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; | |
398 | u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK; | |
399 | u8 address = (pv >> 8) & 0xff; | |
400 | u8 mask = pv & 0xff; | |
401 | ||
402 | mutex_lock(&onyx->mutex); | |
403 | if (spdiflock && onyx->spdif_locked) { | |
404 | /* even if alsamixer doesn't care.. */ | |
405 | err = -EBUSY; | |
406 | goto out_unlock; | |
407 | } | |
408 | onyx_read_register(onyx, address, &v); | |
409 | c = v; | |
410 | c &= ~(mask); | |
411 | if (!!ucontrol->value.integer.value[0] ^ polarity) | |
412 | c |= mask; | |
413 | err = onyx_write_register(onyx, address, c); | |
414 | ||
415 | out_unlock: | |
416 | mutex_unlock(&onyx->mutex); | |
417 | ||
418 | return !err ? (v != c) : err; | |
419 | } | |
420 | ||
421 | #define SINGLE_BIT(n, type, description, address, mask, flags) \ | |
422 | static struct snd_kcontrol_new n##_control = { \ | |
423 | .iface = SNDRV_CTL_ELEM_IFACE_##type, \ | |
424 | .name = description, \ | |
425 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ | |
426 | .info = onyx_snd_single_bit_info, \ | |
427 | .get = onyx_snd_single_bit_get, \ | |
428 | .put = onyx_snd_single_bit_put, \ | |
429 | .private_value = (flags << 16) | (address << 8) | mask \ | |
430 | } | |
431 | ||
432 | SINGLE_BIT(spdif, | |
433 | MIXER, | |
434 | SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), | |
435 | ONYX_REG_DIG_INFO4, | |
436 | ONYX_SPDIF_ENABLE, | |
437 | FLAG_SPDIFLOCK); | |
438 | SINGLE_BIT(ovr1, | |
439 | MIXER, | |
440 | "Oversampling Rate", | |
441 | ONYX_REG_DAC_CONTROL, | |
442 | ONYX_OVR1, | |
443 | 0); | |
444 | SINGLE_BIT(flt0, | |
445 | MIXER, | |
446 | "Fast Digital Filter Rolloff", | |
447 | ONYX_REG_DAC_FILTER, | |
448 | ONYX_ROLLOFF_FAST, | |
449 | FLAG_POLARITY_INVERT); | |
450 | SINGLE_BIT(hpf, | |
451 | MIXER, | |
452 | "Highpass Filter", | |
453 | ONYX_REG_ADC_HPF_BYPASS, | |
454 | ONYX_HPF_DISABLE, | |
455 | FLAG_POLARITY_INVERT); | |
456 | SINGLE_BIT(dm12, | |
457 | MIXER, | |
458 | "Digital De-Emphasis", | |
459 | ONYX_REG_DAC_DEEMPH, | |
460 | ONYX_DIGDEEMPH_CTRL, | |
461 | 0); | |
462 | ||
463 | static int onyx_spdif_info(struct snd_kcontrol *kcontrol, | |
464 | struct snd_ctl_elem_info *uinfo) | |
465 | { | |
466 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; | |
467 | uinfo->count = 1; | |
468 | return 0; | |
469 | } | |
470 | ||
471 | static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol, | |
472 | struct snd_ctl_elem_value *ucontrol) | |
473 | { | |
474 | /* datasheet page 30, all others are 0 */ | |
475 | ucontrol->value.iec958.status[0] = 0x3e; | |
476 | ucontrol->value.iec958.status[1] = 0xff; | |
477 | ||
478 | ucontrol->value.iec958.status[3] = 0x3f; | |
479 | ucontrol->value.iec958.status[4] = 0x0f; | |
888dcb7c | 480 | |
f3d9478b JB |
481 | return 0; |
482 | } | |
483 | ||
484 | static struct snd_kcontrol_new onyx_spdif_mask = { | |
485 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
486 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
487 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK), | |
488 | .info = onyx_spdif_info, | |
489 | .get = onyx_spdif_mask_get, | |
490 | }; | |
491 | ||
492 | static int onyx_spdif_get(struct snd_kcontrol *kcontrol, | |
493 | struct snd_ctl_elem_value *ucontrol) | |
494 | { | |
495 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
496 | u8 v; | |
497 | ||
498 | mutex_lock(&onyx->mutex); | |
499 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v); | |
500 | ucontrol->value.iec958.status[0] = v & 0x3e; | |
501 | ||
502 | onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v); | |
503 | ucontrol->value.iec958.status[1] = v; | |
504 | ||
505 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v); | |
506 | ucontrol->value.iec958.status[3] = v & 0x3f; | |
507 | ||
508 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
509 | ucontrol->value.iec958.status[4] = v & 0x0f; | |
510 | mutex_unlock(&onyx->mutex); | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
515 | static int onyx_spdif_put(struct snd_kcontrol *kcontrol, | |
516 | struct snd_ctl_elem_value *ucontrol) | |
517 | { | |
518 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
519 | u8 v; | |
520 | ||
521 | mutex_lock(&onyx->mutex); | |
522 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v); | |
523 | v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e); | |
524 | onyx_write_register(onyx, ONYX_REG_DIG_INFO1, v); | |
525 | ||
526 | v = ucontrol->value.iec958.status[1]; | |
527 | onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v); | |
528 | ||
529 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v); | |
530 | v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f); | |
531 | onyx_write_register(onyx, ONYX_REG_DIG_INFO3, v); | |
532 | ||
533 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
534 | v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f); | |
535 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v); | |
536 | mutex_unlock(&onyx->mutex); | |
537 | ||
538 | return 1; | |
539 | } | |
540 | ||
541 | static struct snd_kcontrol_new onyx_spdif_ctrl = { | |
542 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
543 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
544 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), | |
545 | .info = onyx_spdif_info, | |
546 | .get = onyx_spdif_get, | |
547 | .put = onyx_spdif_put, | |
548 | }; | |
549 | ||
550 | /* our registers */ | |
551 | ||
552 | static u8 register_map[] = { | |
553 | ONYX_REG_DAC_ATTEN_LEFT, | |
554 | ONYX_REG_DAC_ATTEN_RIGHT, | |
555 | ONYX_REG_CONTROL, | |
556 | ONYX_REG_DAC_CONTROL, | |
557 | ONYX_REG_DAC_DEEMPH, | |
558 | ONYX_REG_DAC_FILTER, | |
559 | ONYX_REG_DAC_OUTPHASE, | |
560 | ONYX_REG_ADC_CONTROL, | |
561 | ONYX_REG_ADC_HPF_BYPASS, | |
562 | ONYX_REG_DIG_INFO1, | |
563 | ONYX_REG_DIG_INFO2, | |
564 | ONYX_REG_DIG_INFO3, | |
565 | ONYX_REG_DIG_INFO4 | |
566 | }; | |
567 | ||
568 | static u8 initial_values[ARRAY_SIZE(register_map)] = { | |
569 | 0x80, 0x80, /* muted */ | |
570 | ONYX_MRST | ONYX_SRST, /* but handled specially! */ | |
571 | ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT, | |
572 | 0, /* no deemphasis */ | |
573 | ONYX_DAC_FILTER_ALWAYS, | |
574 | ONYX_OUTPHASE_INVERTED, | |
575 | (-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/ | |
576 | ONYX_ADC_HPF_ALWAYS, | |
577 | (1<<2), /* pcm audio */ | |
578 | 2, /* category: pcm coder */ | |
579 | 0, /* sampling frequency 44.1 kHz, clock accuracy level II */ | |
580 | 1 /* 24 bit depth */ | |
581 | }; | |
582 | ||
583 | /* reset registers of chip, either to initial or to previous values */ | |
584 | static int onyx_register_init(struct onyx *onyx) | |
585 | { | |
586 | int i; | |
587 | u8 val; | |
588 | u8 regs[sizeof(initial_values)]; | |
589 | ||
590 | if (!onyx->initialised) { | |
591 | memcpy(regs, initial_values, sizeof(initial_values)); | |
592 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val)) | |
593 | return -1; | |
594 | val &= ~ONYX_SILICONVERSION; | |
595 | val |= initial_values[3]; | |
596 | regs[3] = val; | |
597 | } else { | |
598 | for (i=0; i<sizeof(register_map); i++) | |
599 | regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER]; | |
600 | } | |
601 | ||
602 | for (i=0; i<sizeof(register_map); i++) { | |
603 | if (onyx_write_register(onyx, register_map[i], regs[i])) | |
604 | return -1; | |
605 | } | |
606 | onyx->initialised = 1; | |
607 | return 0; | |
608 | } | |
609 | ||
610 | static struct transfer_info onyx_transfers[] = { | |
611 | /* this is first so we can skip it if no input is present... | |
612 | * No hardware exists with that, but it's here as an example | |
613 | * of what to do :) */ | |
614 | { | |
615 | /* analog input */ | |
616 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
617 | SNDRV_PCM_FMTBIT_S16_BE | | |
618 | SNDRV_PCM_FMTBIT_S24_BE, | |
619 | .rates = SNDRV_PCM_RATE_8000_96000, | |
620 | .transfer_in = 1, | |
621 | .must_be_clock_source = 0, | |
622 | .tag = 0, | |
623 | }, | |
624 | { | |
625 | /* if analog and digital are currently off, anything should go, | |
626 | * so this entry describes everything we can do... */ | |
627 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
628 | SNDRV_PCM_FMTBIT_S16_BE | | |
629 | SNDRV_PCM_FMTBIT_S24_BE | |
630 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
631 | | SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
632 | #endif | |
633 | , | |
634 | .rates = SNDRV_PCM_RATE_8000_96000, | |
635 | .tag = 0, | |
636 | }, | |
637 | { | |
638 | /* analog output */ | |
639 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
640 | SNDRV_PCM_FMTBIT_S16_BE | | |
641 | SNDRV_PCM_FMTBIT_S24_BE, | |
642 | .rates = SNDRV_PCM_RATE_8000_96000, | |
643 | .transfer_in = 0, | |
644 | .must_be_clock_source = 0, | |
645 | .tag = 1, | |
646 | }, | |
647 | { | |
648 | /* digital pcm output, also possible for analog out */ | |
649 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
650 | SNDRV_PCM_FMTBIT_S16_BE | | |
651 | SNDRV_PCM_FMTBIT_S24_BE, | |
652 | .rates = SNDRV_PCM_RATE_32000 | | |
653 | SNDRV_PCM_RATE_44100 | | |
654 | SNDRV_PCM_RATE_48000, | |
655 | .transfer_in = 0, | |
656 | .must_be_clock_source = 0, | |
657 | .tag = 2, | |
658 | }, | |
659 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
c28054d4 | 660 | /* Once alsa gets supports for this kind of thing we can add it... */ |
f3d9478b JB |
661 | { |
662 | /* digital compressed output */ | |
663 | .formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE, | |
664 | .rates = SNDRV_PCM_RATE_32000 | | |
665 | SNDRV_PCM_RATE_44100 | | |
666 | SNDRV_PCM_RATE_48000, | |
667 | .tag = 2, | |
668 | }, | |
669 | #endif | |
670 | {} | |
671 | }; | |
672 | ||
673 | static int onyx_usable(struct codec_info_item *cii, | |
674 | struct transfer_info *ti, | |
675 | struct transfer_info *out) | |
676 | { | |
677 | u8 v; | |
678 | struct onyx *onyx = cii->codec_data; | |
679 | int spdif_enabled, analog_enabled; | |
680 | ||
681 | mutex_lock(&onyx->mutex); | |
682 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
683 | spdif_enabled = !!(v & ONYX_SPDIF_ENABLE); | |
684 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
888dcb7c | 685 | analog_enabled = |
f3d9478b JB |
686 | (v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT)) |
687 | != (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT); | |
688 | mutex_unlock(&onyx->mutex); | |
689 | ||
690 | switch (ti->tag) { | |
691 | case 0: return 1; | |
692 | case 1: return analog_enabled; | |
693 | case 2: return spdif_enabled; | |
694 | } | |
695 | return 1; | |
696 | } | |
697 | ||
698 | static int onyx_prepare(struct codec_info_item *cii, | |
699 | struct bus_info *bi, | |
700 | struct snd_pcm_substream *substream) | |
701 | { | |
702 | u8 v; | |
703 | struct onyx *onyx = cii->codec_data; | |
704 | int err = -EBUSY; | |
705 | ||
706 | mutex_lock(&onyx->mutex); | |
707 | ||
708 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
709 | if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) { | |
710 | /* mute and lock analog output */ | |
711 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
c28054d4 | 712 | if (onyx_write_register(onyx, |
f3d9478b JB |
713 | ONYX_REG_DAC_CONTROL, |
714 | v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT)) | |
715 | goto out_unlock; | |
716 | onyx->analog_locked = 1; | |
717 | err = 0; | |
718 | goto out_unlock; | |
719 | } | |
720 | #endif | |
721 | switch (substream->runtime->rate) { | |
722 | case 32000: | |
723 | case 44100: | |
724 | case 48000: | |
725 | /* these rates are ok for all outputs */ | |
726 | /* FIXME: program spdif channel control bits here so that | |
727 | * userspace doesn't have to if it only plays pcm! */ | |
728 | err = 0; | |
729 | goto out_unlock; | |
730 | default: | |
731 | /* got some rate that the digital output can't do, | |
732 | * so disable and lock it */ | |
733 | onyx_read_register(cii->codec_data, ONYX_REG_DIG_INFO4, &v); | |
734 | if (onyx_write_register(onyx, | |
735 | ONYX_REG_DIG_INFO4, | |
736 | v & ~ONYX_SPDIF_ENABLE)) | |
737 | goto out_unlock; | |
738 | onyx->spdif_locked = 1; | |
739 | err = 0; | |
740 | goto out_unlock; | |
741 | } | |
742 | ||
743 | out_unlock: | |
744 | mutex_unlock(&onyx->mutex); | |
745 | ||
746 | return err; | |
747 | } | |
748 | ||
749 | static int onyx_open(struct codec_info_item *cii, | |
750 | struct snd_pcm_substream *substream) | |
751 | { | |
752 | struct onyx *onyx = cii->codec_data; | |
753 | ||
754 | mutex_lock(&onyx->mutex); | |
755 | onyx->open_count++; | |
756 | mutex_unlock(&onyx->mutex); | |
757 | ||
758 | return 0; | |
759 | } | |
760 | ||
761 | static int onyx_close(struct codec_info_item *cii, | |
762 | struct snd_pcm_substream *substream) | |
763 | { | |
764 | struct onyx *onyx = cii->codec_data; | |
765 | ||
766 | mutex_lock(&onyx->mutex); | |
767 | onyx->open_count--; | |
768 | if (!onyx->open_count) | |
769 | onyx->spdif_locked = onyx->analog_locked = 0; | |
770 | mutex_unlock(&onyx->mutex); | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
775 | static int onyx_switch_clock(struct codec_info_item *cii, | |
776 | enum clock_switch what) | |
777 | { | |
778 | struct onyx *onyx = cii->codec_data; | |
779 | ||
780 | mutex_lock(&onyx->mutex); | |
781 | /* this *MUST* be more elaborate later... */ | |
782 | switch (what) { | |
783 | case CLOCK_SWITCH_PREPARE_SLAVE: | |
784 | onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio); | |
785 | break; | |
786 | case CLOCK_SWITCH_SLAVE: | |
787 | onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio); | |
788 | break; | |
789 | default: /* silence warning */ | |
790 | break; | |
791 | } | |
792 | mutex_unlock(&onyx->mutex); | |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
797 | #ifdef CONFIG_PM | |
798 | ||
799 | static int onyx_suspend(struct codec_info_item *cii, pm_message_t state) | |
800 | { | |
801 | struct onyx *onyx = cii->codec_data; | |
802 | u8 v; | |
803 | int err = -ENXIO; | |
804 | ||
805 | mutex_lock(&onyx->mutex); | |
806 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v)) | |
807 | goto out_unlock; | |
808 | onyx_write_register(onyx, ONYX_REG_CONTROL, v | ONYX_ADPSV | ONYX_DAPSV); | |
809 | /* Apple does a sleep here but the datasheet says to do it on resume */ | |
810 | err = 0; | |
811 | out_unlock: | |
812 | mutex_unlock(&onyx->mutex); | |
813 | ||
814 | return err; | |
815 | } | |
816 | ||
817 | static int onyx_resume(struct codec_info_item *cii) | |
818 | { | |
819 | struct onyx *onyx = cii->codec_data; | |
820 | u8 v; | |
821 | int err = -ENXIO; | |
822 | ||
823 | mutex_lock(&onyx->mutex); | |
b0148a98 JB |
824 | |
825 | /* reset codec */ | |
826 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
827 | msleep(1); | |
828 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); | |
829 | msleep(1); | |
830 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
831 | msleep(1); | |
832 | ||
833 | /* take codec out of suspend (if it still is after reset) */ | |
f3d9478b JB |
834 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v)) |
835 | goto out_unlock; | |
836 | onyx_write_register(onyx, ONYX_REG_CONTROL, v & ~(ONYX_ADPSV | ONYX_DAPSV)); | |
837 | /* FIXME: should divide by sample rate, but 8k is the lowest we go */ | |
838 | msleep(2205000/8000); | |
839 | /* reset all values */ | |
840 | onyx_register_init(onyx); | |
841 | err = 0; | |
842 | out_unlock: | |
843 | mutex_unlock(&onyx->mutex); | |
844 | ||
845 | return err; | |
846 | } | |
847 | ||
848 | #endif /* CONFIG_PM */ | |
849 | ||
850 | static struct codec_info onyx_codec_info = { | |
851 | .transfers = onyx_transfers, | |
852 | .sysclock_factor = 256, | |
853 | .bus_factor = 64, | |
854 | .owner = THIS_MODULE, | |
855 | .usable = onyx_usable, | |
856 | .prepare = onyx_prepare, | |
857 | .open = onyx_open, | |
858 | .close = onyx_close, | |
859 | .switch_clock = onyx_switch_clock, | |
860 | #ifdef CONFIG_PM | |
861 | .suspend = onyx_suspend, | |
862 | .resume = onyx_resume, | |
863 | #endif | |
864 | }; | |
865 | ||
866 | static int onyx_init_codec(struct aoa_codec *codec) | |
867 | { | |
868 | struct onyx *onyx = codec_to_onyx(codec); | |
869 | struct snd_kcontrol *ctl; | |
870 | struct codec_info *ci = &onyx_codec_info; | |
871 | u8 v; | |
872 | int err; | |
873 | ||
874 | if (!onyx->codec.gpio || !onyx->codec.gpio->methods) { | |
875 | printk(KERN_ERR PFX "gpios not assigned!!\n"); | |
876 | return -EINVAL; | |
877 | } | |
878 | ||
879 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
880 | msleep(1); | |
881 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); | |
882 | msleep(1); | |
883 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
884 | msleep(1); | |
888dcb7c | 885 | |
f3d9478b JB |
886 | if (onyx_register_init(onyx)) { |
887 | printk(KERN_ERR PFX "failed to initialise onyx registers\n"); | |
888 | return -ENODEV; | |
889 | } | |
890 | ||
891 | if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, onyx, &ops)) { | |
892 | printk(KERN_ERR PFX "failed to create onyx snd device!\n"); | |
893 | return -ENODEV; | |
894 | } | |
895 | ||
896 | /* nothing connected? what a joke! */ | |
897 | if ((onyx->codec.connected & 0xF) == 0) | |
898 | return -ENOTCONN; | |
899 | ||
900 | /* if no inputs are present... */ | |
901 | if ((onyx->codec.connected & 0xC) == 0) { | |
902 | if (!onyx->codec_info) | |
903 | onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL); | |
904 | if (!onyx->codec_info) | |
905 | return -ENOMEM; | |
906 | ci = onyx->codec_info; | |
907 | *ci = onyx_codec_info; | |
908 | ci->transfers++; | |
909 | } | |
910 | ||
911 | /* if no outputs are present... */ | |
912 | if ((onyx->codec.connected & 3) == 0) { | |
913 | if (!onyx->codec_info) | |
914 | onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL); | |
915 | if (!onyx->codec_info) | |
916 | return -ENOMEM; | |
917 | ci = onyx->codec_info; | |
918 | /* this is fine as there have to be inputs | |
919 | * if we end up in this part of the code */ | |
920 | *ci = onyx_codec_info; | |
921 | ci->transfers[1].formats = 0; | |
922 | } | |
923 | ||
924 | if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev, | |
925 | aoa_get_card(), | |
926 | ci, onyx)) { | |
927 | printk(KERN_ERR PFX "error creating onyx pcm\n"); | |
928 | return -ENODEV; | |
929 | } | |
930 | #define ADDCTL(n) \ | |
931 | do { \ | |
932 | ctl = snd_ctl_new1(&n, onyx); \ | |
933 | if (ctl) { \ | |
934 | ctl->id.device = \ | |
935 | onyx->codec.soundbus_dev->pcm->device; \ | |
936 | err = aoa_snd_ctl_add(ctl); \ | |
937 | if (err) \ | |
938 | goto error; \ | |
939 | } \ | |
940 | } while (0) | |
941 | ||
942 | if (onyx->codec.soundbus_dev->pcm) { | |
943 | /* give the user appropriate controls | |
944 | * depending on what inputs are connected */ | |
945 | if ((onyx->codec.connected & 0xC) == 0xC) | |
946 | ADDCTL(capture_source_control); | |
947 | else if (onyx->codec.connected & 4) | |
948 | onyx_set_capture_source(onyx, 0); | |
949 | else | |
950 | onyx_set_capture_source(onyx, 1); | |
951 | if (onyx->codec.connected & 0xC) | |
952 | ADDCTL(inputgain_control); | |
953 | ||
954 | /* depending on what output is connected, | |
955 | * give the user appropriate controls */ | |
956 | if (onyx->codec.connected & 1) { | |
957 | ADDCTL(volume_control); | |
958 | ADDCTL(mute_control); | |
959 | ADDCTL(ovr1_control); | |
960 | ADDCTL(flt0_control); | |
961 | ADDCTL(hpf_control); | |
962 | ADDCTL(dm12_control); | |
963 | /* spdif control defaults to off */ | |
964 | } | |
965 | if (onyx->codec.connected & 2) { | |
966 | ADDCTL(onyx_spdif_mask); | |
967 | ADDCTL(onyx_spdif_ctrl); | |
968 | } | |
969 | if ((onyx->codec.connected & 3) == 3) | |
970 | ADDCTL(spdif_control); | |
971 | /* if only S/PDIF is connected, enable it unconditionally */ | |
972 | if ((onyx->codec.connected & 3) == 2) { | |
973 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
974 | v |= ONYX_SPDIF_ENABLE; | |
975 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v); | |
976 | } | |
977 | } | |
978 | #undef ADDCTL | |
979 | printk(KERN_INFO PFX "attached to onyx codec via i2c\n"); | |
980 | ||
981 | return 0; | |
982 | error: | |
983 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); | |
984 | snd_device_free(aoa_get_card(), onyx); | |
985 | return err; | |
986 | } | |
987 | ||
988 | static void onyx_exit_codec(struct aoa_codec *codec) | |
989 | { | |
990 | struct onyx *onyx = codec_to_onyx(codec); | |
991 | ||
992 | if (!onyx->codec.soundbus_dev) { | |
993 | printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n"); | |
994 | return; | |
995 | } | |
996 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); | |
997 | } | |
998 | ||
f3d9478b JB |
999 | static int onyx_create(struct i2c_adapter *adapter, |
1000 | struct device_node *node, | |
1001 | int addr) | |
1002 | { | |
cfbf1eec JD |
1003 | struct i2c_board_info info; |
1004 | struct i2c_client *client; | |
1005 | ||
1006 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
1007 | strlcpy(info.type, "aoa_codec_onyx", I2C_NAME_SIZE); | |
1008 | info.addr = addr; | |
1009 | info.platform_data = node; | |
1010 | client = i2c_new_device(adapter, &info); | |
1011 | if (!client) | |
1012 | return -ENODEV; | |
1013 | ||
1014 | /* | |
1015 | * We know the driver is already loaded, so the device should be | |
1016 | * already bound. If not it means binding failed, which suggests | |
1017 | * the device doesn't really exist and should be deleted. | |
1018 | * Ideally this would be replaced by better checks _before_ | |
1019 | * instantiating the device. | |
1020 | */ | |
1021 | if (!client->driver) { | |
1022 | i2c_unregister_device(client); | |
1023 | return -ENODEV; | |
1024 | } | |
1025 | ||
1026 | /* | |
1027 | * Let i2c-core delete that device on driver removal. | |
1028 | * This is safe because i2c-core holds the core_lock mutex for us. | |
1029 | */ | |
1030 | list_add_tail(&client->detected, &client->driver->clients); | |
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | static int onyx_i2c_probe(struct i2c_client *client, | |
1035 | const struct i2c_device_id *id) | |
1036 | { | |
1037 | struct device_node *node = client->dev.platform_data; | |
f3d9478b JB |
1038 | struct onyx *onyx; |
1039 | u8 dummy; | |
1040 | ||
1041 | onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL); | |
1042 | ||
1043 | if (!onyx) | |
1044 | return -ENOMEM; | |
1045 | ||
1046 | mutex_init(&onyx->mutex); | |
cfbf1eec JD |
1047 | onyx->i2c = client; |
1048 | i2c_set_clientdata(client, onyx); | |
f3d9478b JB |
1049 | |
1050 | /* we try to read from register ONYX_REG_CONTROL | |
1051 | * to check if the codec is present */ | |
1052 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) { | |
f3d9478b JB |
1053 | printk(KERN_ERR PFX "failed to read control register\n"); |
1054 | goto fail; | |
1055 | } | |
1056 | ||
023ff3ee | 1057 | strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN); |
f3d9478b JB |
1058 | onyx->codec.owner = THIS_MODULE; |
1059 | onyx->codec.init = onyx_init_codec; | |
1060 | onyx->codec.exit = onyx_exit_codec; | |
1061 | onyx->codec.node = of_node_get(node); | |
1062 | ||
1063 | if (aoa_codec_register(&onyx->codec)) { | |
f3d9478b JB |
1064 | goto fail; |
1065 | } | |
1066 | printk(KERN_DEBUG PFX "created and attached onyx instance\n"); | |
1067 | return 0; | |
1068 | fail: | |
cfbf1eec | 1069 | i2c_set_clientdata(client, NULL); |
f3d9478b | 1070 | kfree(onyx); |
cfbf1eec | 1071 | return -ENODEV; |
f3d9478b JB |
1072 | } |
1073 | ||
1074 | static int onyx_i2c_attach(struct i2c_adapter *adapter) | |
1075 | { | |
1076 | struct device_node *busnode, *dev = NULL; | |
1077 | struct pmac_i2c_bus *bus; | |
1078 | ||
1079 | bus = pmac_i2c_adapter_to_bus(adapter); | |
1080 | if (bus == NULL) | |
1081 | return -ENODEV; | |
1082 | busnode = pmac_i2c_get_bus_node(bus); | |
1083 | ||
1084 | while ((dev = of_get_next_child(busnode, dev)) != NULL) { | |
55b61fec | 1085 | if (of_device_is_compatible(dev, "pcm3052")) { |
a7edd0e6 | 1086 | const u32 *addr; |
f3d9478b | 1087 | printk(KERN_DEBUG PFX "found pcm3052\n"); |
c4f55b39 | 1088 | addr = of_get_property(dev, "reg", NULL); |
f3d9478b JB |
1089 | if (!addr) |
1090 | return -ENODEV; | |
1091 | return onyx_create(adapter, dev, (*addr)>>1); | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | /* if that didn't work, try desperate mode for older | |
1096 | * machines that have stuff missing from the device tree */ | |
888dcb7c | 1097 | |
55b61fec | 1098 | if (!of_device_is_compatible(busnode, "k2-i2c")) |
f3d9478b JB |
1099 | return -ENODEV; |
1100 | ||
1101 | printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n"); | |
1102 | /* probe both possible addresses for the onyx chip */ | |
1103 | if (onyx_create(adapter, NULL, 0x46) == 0) | |
1104 | return 0; | |
1105 | return onyx_create(adapter, NULL, 0x47); | |
1106 | } | |
1107 | ||
cfbf1eec | 1108 | static int onyx_i2c_remove(struct i2c_client *client) |
f3d9478b | 1109 | { |
cfbf1eec | 1110 | struct onyx *onyx = i2c_get_clientdata(client); |
f3d9478b | 1111 | |
f3d9478b JB |
1112 | aoa_codec_unregister(&onyx->codec); |
1113 | of_node_put(onyx->codec.node); | |
1114 | if (onyx->codec_info) | |
1115 | kfree(onyx->codec_info); | |
cfbf1eec | 1116 | i2c_set_clientdata(client, onyx); |
f3d9478b JB |
1117 | kfree(onyx); |
1118 | return 0; | |
1119 | } | |
1120 | ||
cfbf1eec JD |
1121 | static const struct i2c_device_id onyx_i2c_id[] = { |
1122 | { "aoa_codec_onyx", 0 }, | |
1123 | { } | |
1124 | }; | |
1125 | ||
f3d9478b JB |
1126 | static struct i2c_driver onyx_driver = { |
1127 | .driver = { | |
1128 | .name = "aoa_codec_onyx", | |
1129 | .owner = THIS_MODULE, | |
1130 | }, | |
1131 | .attach_adapter = onyx_i2c_attach, | |
cfbf1eec JD |
1132 | .probe = onyx_i2c_probe, |
1133 | .remove = onyx_i2c_remove, | |
1134 | .id_table = onyx_i2c_id, | |
f3d9478b JB |
1135 | }; |
1136 | ||
1137 | static int __init onyx_init(void) | |
1138 | { | |
1139 | return i2c_add_driver(&onyx_driver); | |
1140 | } | |
1141 | ||
1142 | static void __exit onyx_exit(void) | |
1143 | { | |
1144 | i2c_del_driver(&onyx_driver); | |
1145 | } | |
1146 | ||
1147 | module_init(onyx_init); | |
1148 | module_exit(onyx_exit); |