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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 | ||
40 | #include "snd-aoa-codec-onyx.h" | |
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]; | |
50 | struct i2c_client i2c; | |
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 | } | |
75 | v = i2c_smbus_read_byte_data(&onyx->i2c, reg); | |
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 | ||
87 | result = i2c_smbus_write_byte_data(&onyx->i2c, reg, value); | |
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 | ||
141 | mutex_lock(&onyx->mutex); | |
142 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l); | |
143 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r); | |
144 | ||
145 | if (l + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[0] && | |
146 | r + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[1]) { | |
147 | mutex_unlock(&onyx->mutex); | |
148 | return 0; | |
149 | } | |
150 | ||
151 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, | |
152 | ucontrol->value.integer.value[0] | |
153 | - VOLUME_RANGE_SHIFT); | |
154 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, | |
155 | ucontrol->value.integer.value[1] | |
156 | - VOLUME_RANGE_SHIFT); | |
157 | mutex_unlock(&onyx->mutex); | |
158 | ||
159 | return 1; | |
160 | } | |
161 | ||
162 | static struct snd_kcontrol_new volume_control = { | |
163 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
164 | .name = "Master Playback Volume", | |
165 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
166 | .info = onyx_snd_vol_info, | |
167 | .get = onyx_snd_vol_get, | |
168 | .put = onyx_snd_vol_put, | |
169 | }; | |
170 | ||
171 | /* like above, this is necessary because a lot | |
172 | * of alsa mixer programs don't handle ranges | |
173 | * that don't start at 0 properly. | |
174 | * even alsamixer is one of them... */ | |
175 | #define INPUTGAIN_RANGE_SHIFT (-3) | |
176 | ||
177 | static int onyx_snd_inputgain_info(struct snd_kcontrol *kcontrol, | |
178 | struct snd_ctl_elem_info *uinfo) | |
179 | { | |
180 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
181 | uinfo->count = 1; | |
182 | uinfo->value.integer.min = 3 + INPUTGAIN_RANGE_SHIFT; | |
183 | uinfo->value.integer.max = 28 + INPUTGAIN_RANGE_SHIFT; | |
184 | return 0; | |
185 | } | |
186 | ||
187 | static int onyx_snd_inputgain_get(struct snd_kcontrol *kcontrol, | |
188 | struct snd_ctl_elem_value *ucontrol) | |
189 | { | |
190 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
191 | u8 ig; | |
192 | ||
193 | mutex_lock(&onyx->mutex); | |
194 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &ig); | |
195 | mutex_unlock(&onyx->mutex); | |
196 | ||
197 | ucontrol->value.integer.value[0] = | |
198 | (ig & ONYX_ADC_PGA_GAIN_MASK) + INPUTGAIN_RANGE_SHIFT; | |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
203 | static int onyx_snd_inputgain_put(struct snd_kcontrol *kcontrol, | |
204 | struct snd_ctl_elem_value *ucontrol) | |
205 | { | |
206 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
207 | u8 v, n; | |
208 | ||
209 | mutex_lock(&onyx->mutex); | |
210 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
211 | n = v; | |
212 | n &= ~ONYX_ADC_PGA_GAIN_MASK; | |
213 | n |= (ucontrol->value.integer.value[0] - INPUTGAIN_RANGE_SHIFT) | |
214 | & ONYX_ADC_PGA_GAIN_MASK; | |
215 | onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, n); | |
216 | mutex_unlock(&onyx->mutex); | |
217 | ||
218 | return n != v; | |
219 | } | |
220 | ||
221 | static struct snd_kcontrol_new inputgain_control = { | |
222 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
223 | .name = "Master Capture Volume", | |
224 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
225 | .info = onyx_snd_inputgain_info, | |
226 | .get = onyx_snd_inputgain_get, | |
227 | .put = onyx_snd_inputgain_put, | |
228 | }; | |
229 | ||
230 | static int onyx_snd_capture_source_info(struct snd_kcontrol *kcontrol, | |
231 | struct snd_ctl_elem_info *uinfo) | |
232 | { | |
233 | static char *texts[] = { "Line-In", "Microphone" }; | |
234 | ||
235 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
236 | uinfo->count = 1; | |
237 | uinfo->value.enumerated.items = 2; | |
238 | if (uinfo->value.enumerated.item > 1) | |
239 | uinfo->value.enumerated.item = 1; | |
240 | strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); | |
241 | return 0; | |
242 | } | |
243 | ||
244 | static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol, | |
245 | struct snd_ctl_elem_value *ucontrol) | |
246 | { | |
247 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
248 | s8 v; | |
249 | ||
250 | mutex_lock(&onyx->mutex); | |
251 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
252 | mutex_unlock(&onyx->mutex); | |
253 | ||
254 | ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC); | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
259 | static void onyx_set_capture_source(struct onyx *onyx, int mic) | |
260 | { | |
261 | s8 v; | |
262 | ||
263 | mutex_lock(&onyx->mutex); | |
264 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
265 | v &= ~ONYX_ADC_INPUT_MIC; | |
266 | if (mic) | |
267 | v |= ONYX_ADC_INPUT_MIC; | |
268 | onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, v); | |
269 | mutex_unlock(&onyx->mutex); | |
270 | } | |
271 | ||
272 | static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol, | |
273 | struct snd_ctl_elem_value *ucontrol) | |
274 | { | |
275 | onyx_set_capture_source(snd_kcontrol_chip(kcontrol), | |
276 | ucontrol->value.enumerated.item[0]); | |
277 | return 1; | |
278 | } | |
279 | ||
280 | static struct snd_kcontrol_new capture_source_control = { | |
281 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
282 | /* If we name this 'Input Source', it properly shows up in | |
283 | * alsamixer as a selection, * but it's shown under the | |
284 | * 'Playback' category. | |
285 | * If I name it 'Capture Source', it shows up in strange | |
286 | * ways (two bools of which one can be selected at a | |
287 | * time) but at least it's shown in the 'Capture' | |
288 | * category. | |
289 | * I was told that this was due to backward compatibility, | |
290 | * but I don't understand then why the mangling is *not* | |
291 | * done when I name it "Input Source"..... | |
292 | */ | |
293 | .name = "Capture Source", | |
294 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
295 | .info = onyx_snd_capture_source_info, | |
296 | .get = onyx_snd_capture_source_get, | |
297 | .put = onyx_snd_capture_source_put, | |
298 | }; | |
299 | ||
300 | static int onyx_snd_mute_info(struct snd_kcontrol *kcontrol, | |
301 | struct snd_ctl_elem_info *uinfo) | |
302 | { | |
303 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
304 | uinfo->count = 2; | |
305 | uinfo->value.integer.min = 0; | |
306 | uinfo->value.integer.max = 1; | |
307 | return 0; | |
308 | } | |
309 | ||
310 | static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol, | |
311 | struct snd_ctl_elem_value *ucontrol) | |
312 | { | |
313 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
314 | u8 c; | |
315 | ||
316 | mutex_lock(&onyx->mutex); | |
317 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c); | |
318 | mutex_unlock(&onyx->mutex); | |
319 | ||
320 | ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT); | |
321 | ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT); | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol, | |
327 | struct snd_ctl_elem_value *ucontrol) | |
328 | { | |
329 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
330 | u8 v = 0, c = 0; | |
331 | int err = -EBUSY; | |
332 | ||
333 | mutex_lock(&onyx->mutex); | |
334 | if (onyx->analog_locked) | |
335 | goto out_unlock; | |
336 | ||
337 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
338 | c = v; | |
339 | c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT); | |
340 | if (!ucontrol->value.integer.value[0]) | |
341 | c |= ONYX_MUTE_LEFT; | |
342 | if (!ucontrol->value.integer.value[1]) | |
343 | c |= ONYX_MUTE_RIGHT; | |
344 | err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c); | |
345 | ||
346 | out_unlock: | |
347 | mutex_unlock(&onyx->mutex); | |
348 | ||
349 | return !err ? (v != c) : err; | |
350 | } | |
351 | ||
352 | static struct snd_kcontrol_new mute_control = { | |
353 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
354 | .name = "Master Playback Switch", | |
355 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
356 | .info = onyx_snd_mute_info, | |
357 | .get = onyx_snd_mute_get, | |
358 | .put = onyx_snd_mute_put, | |
359 | }; | |
360 | ||
361 | ||
362 | static int onyx_snd_single_bit_info(struct snd_kcontrol *kcontrol, | |
363 | struct snd_ctl_elem_info *uinfo) | |
364 | { | |
365 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
366 | uinfo->count = 1; | |
367 | uinfo->value.integer.min = 0; | |
368 | uinfo->value.integer.max = 1; | |
369 | return 0; | |
370 | } | |
371 | ||
372 | #define FLAG_POLARITY_INVERT 1 | |
373 | #define FLAG_SPDIFLOCK 2 | |
374 | ||
375 | static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol, | |
376 | struct snd_ctl_elem_value *ucontrol) | |
377 | { | |
378 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
379 | u8 c; | |
380 | long int pv = kcontrol->private_value; | |
381 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; | |
382 | u8 address = (pv >> 8) & 0xff; | |
383 | u8 mask = pv & 0xff; | |
384 | ||
385 | mutex_lock(&onyx->mutex); | |
386 | onyx_read_register(onyx, address, &c); | |
387 | mutex_unlock(&onyx->mutex); | |
388 | ||
389 | ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity; | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
394 | static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol, | |
395 | struct snd_ctl_elem_value *ucontrol) | |
396 | { | |
397 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
398 | u8 v = 0, c = 0; | |
399 | int err; | |
400 | long int pv = kcontrol->private_value; | |
401 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; | |
402 | u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK; | |
403 | u8 address = (pv >> 8) & 0xff; | |
404 | u8 mask = pv & 0xff; | |
405 | ||
406 | mutex_lock(&onyx->mutex); | |
407 | if (spdiflock && onyx->spdif_locked) { | |
408 | /* even if alsamixer doesn't care.. */ | |
409 | err = -EBUSY; | |
410 | goto out_unlock; | |
411 | } | |
412 | onyx_read_register(onyx, address, &v); | |
413 | c = v; | |
414 | c &= ~(mask); | |
415 | if (!!ucontrol->value.integer.value[0] ^ polarity) | |
416 | c |= mask; | |
417 | err = onyx_write_register(onyx, address, c); | |
418 | ||
419 | out_unlock: | |
420 | mutex_unlock(&onyx->mutex); | |
421 | ||
422 | return !err ? (v != c) : err; | |
423 | } | |
424 | ||
425 | #define SINGLE_BIT(n, type, description, address, mask, flags) \ | |
426 | static struct snd_kcontrol_new n##_control = { \ | |
427 | .iface = SNDRV_CTL_ELEM_IFACE_##type, \ | |
428 | .name = description, \ | |
429 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ | |
430 | .info = onyx_snd_single_bit_info, \ | |
431 | .get = onyx_snd_single_bit_get, \ | |
432 | .put = onyx_snd_single_bit_put, \ | |
433 | .private_value = (flags << 16) | (address << 8) | mask \ | |
434 | } | |
435 | ||
436 | SINGLE_BIT(spdif, | |
437 | MIXER, | |
438 | SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), | |
439 | ONYX_REG_DIG_INFO4, | |
440 | ONYX_SPDIF_ENABLE, | |
441 | FLAG_SPDIFLOCK); | |
442 | SINGLE_BIT(ovr1, | |
443 | MIXER, | |
444 | "Oversampling Rate", | |
445 | ONYX_REG_DAC_CONTROL, | |
446 | ONYX_OVR1, | |
447 | 0); | |
448 | SINGLE_BIT(flt0, | |
449 | MIXER, | |
450 | "Fast Digital Filter Rolloff", | |
451 | ONYX_REG_DAC_FILTER, | |
452 | ONYX_ROLLOFF_FAST, | |
453 | FLAG_POLARITY_INVERT); | |
454 | SINGLE_BIT(hpf, | |
455 | MIXER, | |
456 | "Highpass Filter", | |
457 | ONYX_REG_ADC_HPF_BYPASS, | |
458 | ONYX_HPF_DISABLE, | |
459 | FLAG_POLARITY_INVERT); | |
460 | SINGLE_BIT(dm12, | |
461 | MIXER, | |
462 | "Digital De-Emphasis", | |
463 | ONYX_REG_DAC_DEEMPH, | |
464 | ONYX_DIGDEEMPH_CTRL, | |
465 | 0); | |
466 | ||
467 | static int onyx_spdif_info(struct snd_kcontrol *kcontrol, | |
468 | struct snd_ctl_elem_info *uinfo) | |
469 | { | |
470 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; | |
471 | uinfo->count = 1; | |
472 | return 0; | |
473 | } | |
474 | ||
475 | static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol, | |
476 | struct snd_ctl_elem_value *ucontrol) | |
477 | { | |
478 | /* datasheet page 30, all others are 0 */ | |
479 | ucontrol->value.iec958.status[0] = 0x3e; | |
480 | ucontrol->value.iec958.status[1] = 0xff; | |
481 | ||
482 | ucontrol->value.iec958.status[3] = 0x3f; | |
483 | ucontrol->value.iec958.status[4] = 0x0f; | |
484 | ||
485 | return 0; | |
486 | } | |
487 | ||
488 | static struct snd_kcontrol_new onyx_spdif_mask = { | |
489 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
490 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
491 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK), | |
492 | .info = onyx_spdif_info, | |
493 | .get = onyx_spdif_mask_get, | |
494 | }; | |
495 | ||
496 | static int onyx_spdif_get(struct snd_kcontrol *kcontrol, | |
497 | struct snd_ctl_elem_value *ucontrol) | |
498 | { | |
499 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
500 | u8 v; | |
501 | ||
502 | mutex_lock(&onyx->mutex); | |
503 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v); | |
504 | ucontrol->value.iec958.status[0] = v & 0x3e; | |
505 | ||
506 | onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v); | |
507 | ucontrol->value.iec958.status[1] = v; | |
508 | ||
509 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v); | |
510 | ucontrol->value.iec958.status[3] = v & 0x3f; | |
511 | ||
512 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
513 | ucontrol->value.iec958.status[4] = v & 0x0f; | |
514 | mutex_unlock(&onyx->mutex); | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
519 | static int onyx_spdif_put(struct snd_kcontrol *kcontrol, | |
520 | struct snd_ctl_elem_value *ucontrol) | |
521 | { | |
522 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
523 | u8 v; | |
524 | ||
525 | mutex_lock(&onyx->mutex); | |
526 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v); | |
527 | v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e); | |
528 | onyx_write_register(onyx, ONYX_REG_DIG_INFO1, v); | |
529 | ||
530 | v = ucontrol->value.iec958.status[1]; | |
531 | onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v); | |
532 | ||
533 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v); | |
534 | v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f); | |
535 | onyx_write_register(onyx, ONYX_REG_DIG_INFO3, v); | |
536 | ||
537 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
538 | v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f); | |
539 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v); | |
540 | mutex_unlock(&onyx->mutex); | |
541 | ||
542 | return 1; | |
543 | } | |
544 | ||
545 | static struct snd_kcontrol_new onyx_spdif_ctrl = { | |
546 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
547 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
548 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), | |
549 | .info = onyx_spdif_info, | |
550 | .get = onyx_spdif_get, | |
551 | .put = onyx_spdif_put, | |
552 | }; | |
553 | ||
554 | /* our registers */ | |
555 | ||
556 | static u8 register_map[] = { | |
557 | ONYX_REG_DAC_ATTEN_LEFT, | |
558 | ONYX_REG_DAC_ATTEN_RIGHT, | |
559 | ONYX_REG_CONTROL, | |
560 | ONYX_REG_DAC_CONTROL, | |
561 | ONYX_REG_DAC_DEEMPH, | |
562 | ONYX_REG_DAC_FILTER, | |
563 | ONYX_REG_DAC_OUTPHASE, | |
564 | ONYX_REG_ADC_CONTROL, | |
565 | ONYX_REG_ADC_HPF_BYPASS, | |
566 | ONYX_REG_DIG_INFO1, | |
567 | ONYX_REG_DIG_INFO2, | |
568 | ONYX_REG_DIG_INFO3, | |
569 | ONYX_REG_DIG_INFO4 | |
570 | }; | |
571 | ||
572 | static u8 initial_values[ARRAY_SIZE(register_map)] = { | |
573 | 0x80, 0x80, /* muted */ | |
574 | ONYX_MRST | ONYX_SRST, /* but handled specially! */ | |
575 | ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT, | |
576 | 0, /* no deemphasis */ | |
577 | ONYX_DAC_FILTER_ALWAYS, | |
578 | ONYX_OUTPHASE_INVERTED, | |
579 | (-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/ | |
580 | ONYX_ADC_HPF_ALWAYS, | |
581 | (1<<2), /* pcm audio */ | |
582 | 2, /* category: pcm coder */ | |
583 | 0, /* sampling frequency 44.1 kHz, clock accuracy level II */ | |
584 | 1 /* 24 bit depth */ | |
585 | }; | |
586 | ||
587 | /* reset registers of chip, either to initial or to previous values */ | |
588 | static int onyx_register_init(struct onyx *onyx) | |
589 | { | |
590 | int i; | |
591 | u8 val; | |
592 | u8 regs[sizeof(initial_values)]; | |
593 | ||
594 | if (!onyx->initialised) { | |
595 | memcpy(regs, initial_values, sizeof(initial_values)); | |
596 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val)) | |
597 | return -1; | |
598 | val &= ~ONYX_SILICONVERSION; | |
599 | val |= initial_values[3]; | |
600 | regs[3] = val; | |
601 | } else { | |
602 | for (i=0; i<sizeof(register_map); i++) | |
603 | regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER]; | |
604 | } | |
605 | ||
606 | for (i=0; i<sizeof(register_map); i++) { | |
607 | if (onyx_write_register(onyx, register_map[i], regs[i])) | |
608 | return -1; | |
609 | } | |
610 | onyx->initialised = 1; | |
611 | return 0; | |
612 | } | |
613 | ||
614 | static struct transfer_info onyx_transfers[] = { | |
615 | /* this is first so we can skip it if no input is present... | |
616 | * No hardware exists with that, but it's here as an example | |
617 | * of what to do :) */ | |
618 | { | |
619 | /* analog input */ | |
620 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
621 | SNDRV_PCM_FMTBIT_S16_BE | | |
622 | SNDRV_PCM_FMTBIT_S24_BE, | |
623 | .rates = SNDRV_PCM_RATE_8000_96000, | |
624 | .transfer_in = 1, | |
625 | .must_be_clock_source = 0, | |
626 | .tag = 0, | |
627 | }, | |
628 | { | |
629 | /* if analog and digital are currently off, anything should go, | |
630 | * so this entry describes everything we can do... */ | |
631 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
632 | SNDRV_PCM_FMTBIT_S16_BE | | |
633 | SNDRV_PCM_FMTBIT_S24_BE | |
634 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
635 | | SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
636 | #endif | |
637 | , | |
638 | .rates = SNDRV_PCM_RATE_8000_96000, | |
639 | .tag = 0, | |
640 | }, | |
641 | { | |
642 | /* analog output */ | |
643 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
644 | SNDRV_PCM_FMTBIT_S16_BE | | |
645 | SNDRV_PCM_FMTBIT_S24_BE, | |
646 | .rates = SNDRV_PCM_RATE_8000_96000, | |
647 | .transfer_in = 0, | |
648 | .must_be_clock_source = 0, | |
649 | .tag = 1, | |
650 | }, | |
651 | { | |
652 | /* digital pcm output, also possible for analog out */ | |
653 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
654 | SNDRV_PCM_FMTBIT_S16_BE | | |
655 | SNDRV_PCM_FMTBIT_S24_BE, | |
656 | .rates = SNDRV_PCM_RATE_32000 | | |
657 | SNDRV_PCM_RATE_44100 | | |
658 | SNDRV_PCM_RATE_48000, | |
659 | .transfer_in = 0, | |
660 | .must_be_clock_source = 0, | |
661 | .tag = 2, | |
662 | }, | |
663 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
664 | Once alsa gets supports for this kind of thing we can add it... | |
665 | { | |
666 | /* digital compressed output */ | |
667 | .formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE, | |
668 | .rates = SNDRV_PCM_RATE_32000 | | |
669 | SNDRV_PCM_RATE_44100 | | |
670 | SNDRV_PCM_RATE_48000, | |
671 | .tag = 2, | |
672 | }, | |
673 | #endif | |
674 | {} | |
675 | }; | |
676 | ||
677 | static int onyx_usable(struct codec_info_item *cii, | |
678 | struct transfer_info *ti, | |
679 | struct transfer_info *out) | |
680 | { | |
681 | u8 v; | |
682 | struct onyx *onyx = cii->codec_data; | |
683 | int spdif_enabled, analog_enabled; | |
684 | ||
685 | mutex_lock(&onyx->mutex); | |
686 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
687 | spdif_enabled = !!(v & ONYX_SPDIF_ENABLE); | |
688 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
689 | analog_enabled = | |
690 | (v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT)) | |
691 | != (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT); | |
692 | mutex_unlock(&onyx->mutex); | |
693 | ||
694 | switch (ti->tag) { | |
695 | case 0: return 1; | |
696 | case 1: return analog_enabled; | |
697 | case 2: return spdif_enabled; | |
698 | } | |
699 | return 1; | |
700 | } | |
701 | ||
702 | static int onyx_prepare(struct codec_info_item *cii, | |
703 | struct bus_info *bi, | |
704 | struct snd_pcm_substream *substream) | |
705 | { | |
706 | u8 v; | |
707 | struct onyx *onyx = cii->codec_data; | |
708 | int err = -EBUSY; | |
709 | ||
710 | mutex_lock(&onyx->mutex); | |
711 | ||
712 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
713 | if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) { | |
714 | /* mute and lock analog output */ | |
715 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
716 | if (onyx_write_register(onyx | |
717 | ONYX_REG_DAC_CONTROL, | |
718 | v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT)) | |
719 | goto out_unlock; | |
720 | onyx->analog_locked = 1; | |
721 | err = 0; | |
722 | goto out_unlock; | |
723 | } | |
724 | #endif | |
725 | switch (substream->runtime->rate) { | |
726 | case 32000: | |
727 | case 44100: | |
728 | case 48000: | |
729 | /* these rates are ok for all outputs */ | |
730 | /* FIXME: program spdif channel control bits here so that | |
731 | * userspace doesn't have to if it only plays pcm! */ | |
732 | err = 0; | |
733 | goto out_unlock; | |
734 | default: | |
735 | /* got some rate that the digital output can't do, | |
736 | * so disable and lock it */ | |
737 | onyx_read_register(cii->codec_data, ONYX_REG_DIG_INFO4, &v); | |
738 | if (onyx_write_register(onyx, | |
739 | ONYX_REG_DIG_INFO4, | |
740 | v & ~ONYX_SPDIF_ENABLE)) | |
741 | goto out_unlock; | |
742 | onyx->spdif_locked = 1; | |
743 | err = 0; | |
744 | goto out_unlock; | |
745 | } | |
746 | ||
747 | out_unlock: | |
748 | mutex_unlock(&onyx->mutex); | |
749 | ||
750 | return err; | |
751 | } | |
752 | ||
753 | static int onyx_open(struct codec_info_item *cii, | |
754 | struct snd_pcm_substream *substream) | |
755 | { | |
756 | struct onyx *onyx = cii->codec_data; | |
757 | ||
758 | mutex_lock(&onyx->mutex); | |
759 | onyx->open_count++; | |
760 | mutex_unlock(&onyx->mutex); | |
761 | ||
762 | return 0; | |
763 | } | |
764 | ||
765 | static int onyx_close(struct codec_info_item *cii, | |
766 | struct snd_pcm_substream *substream) | |
767 | { | |
768 | struct onyx *onyx = cii->codec_data; | |
769 | ||
770 | mutex_lock(&onyx->mutex); | |
771 | onyx->open_count--; | |
772 | if (!onyx->open_count) | |
773 | onyx->spdif_locked = onyx->analog_locked = 0; | |
774 | mutex_unlock(&onyx->mutex); | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
779 | static int onyx_switch_clock(struct codec_info_item *cii, | |
780 | enum clock_switch what) | |
781 | { | |
782 | struct onyx *onyx = cii->codec_data; | |
783 | ||
784 | mutex_lock(&onyx->mutex); | |
785 | /* this *MUST* be more elaborate later... */ | |
786 | switch (what) { | |
787 | case CLOCK_SWITCH_PREPARE_SLAVE: | |
788 | onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio); | |
789 | break; | |
790 | case CLOCK_SWITCH_SLAVE: | |
791 | onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio); | |
792 | break; | |
793 | default: /* silence warning */ | |
794 | break; | |
795 | } | |
796 | mutex_unlock(&onyx->mutex); | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
801 | #ifdef CONFIG_PM | |
802 | ||
803 | static int onyx_suspend(struct codec_info_item *cii, pm_message_t state) | |
804 | { | |
805 | struct onyx *onyx = cii->codec_data; | |
806 | u8 v; | |
807 | int err = -ENXIO; | |
808 | ||
809 | mutex_lock(&onyx->mutex); | |
810 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v)) | |
811 | goto out_unlock; | |
812 | onyx_write_register(onyx, ONYX_REG_CONTROL, v | ONYX_ADPSV | ONYX_DAPSV); | |
813 | /* Apple does a sleep here but the datasheet says to do it on resume */ | |
814 | err = 0; | |
815 | out_unlock: | |
816 | mutex_unlock(&onyx->mutex); | |
817 | ||
818 | return err; | |
819 | } | |
820 | ||
821 | static int onyx_resume(struct codec_info_item *cii) | |
822 | { | |
823 | struct onyx *onyx = cii->codec_data; | |
824 | u8 v; | |
825 | int err = -ENXIO; | |
826 | ||
827 | mutex_lock(&onyx->mutex); | |
b0148a98 JB |
828 | |
829 | /* reset codec */ | |
830 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
831 | msleep(1); | |
832 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); | |
833 | msleep(1); | |
834 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
835 | msleep(1); | |
836 | ||
837 | /* take codec out of suspend (if it still is after reset) */ | |
f3d9478b JB |
838 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v)) |
839 | goto out_unlock; | |
840 | onyx_write_register(onyx, ONYX_REG_CONTROL, v & ~(ONYX_ADPSV | ONYX_DAPSV)); | |
841 | /* FIXME: should divide by sample rate, but 8k is the lowest we go */ | |
842 | msleep(2205000/8000); | |
843 | /* reset all values */ | |
844 | onyx_register_init(onyx); | |
845 | err = 0; | |
846 | out_unlock: | |
847 | mutex_unlock(&onyx->mutex); | |
848 | ||
849 | return err; | |
850 | } | |
851 | ||
852 | #endif /* CONFIG_PM */ | |
853 | ||
854 | static struct codec_info onyx_codec_info = { | |
855 | .transfers = onyx_transfers, | |
856 | .sysclock_factor = 256, | |
857 | .bus_factor = 64, | |
858 | .owner = THIS_MODULE, | |
859 | .usable = onyx_usable, | |
860 | .prepare = onyx_prepare, | |
861 | .open = onyx_open, | |
862 | .close = onyx_close, | |
863 | .switch_clock = onyx_switch_clock, | |
864 | #ifdef CONFIG_PM | |
865 | .suspend = onyx_suspend, | |
866 | .resume = onyx_resume, | |
867 | #endif | |
868 | }; | |
869 | ||
870 | static int onyx_init_codec(struct aoa_codec *codec) | |
871 | { | |
872 | struct onyx *onyx = codec_to_onyx(codec); | |
873 | struct snd_kcontrol *ctl; | |
874 | struct codec_info *ci = &onyx_codec_info; | |
875 | u8 v; | |
876 | int err; | |
877 | ||
878 | if (!onyx->codec.gpio || !onyx->codec.gpio->methods) { | |
879 | printk(KERN_ERR PFX "gpios not assigned!!\n"); | |
880 | return -EINVAL; | |
881 | } | |
882 | ||
883 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
884 | msleep(1); | |
885 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); | |
886 | msleep(1); | |
887 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
888 | msleep(1); | |
889 | ||
890 | if (onyx_register_init(onyx)) { | |
891 | printk(KERN_ERR PFX "failed to initialise onyx registers\n"); | |
892 | return -ENODEV; | |
893 | } | |
894 | ||
895 | if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, onyx, &ops)) { | |
896 | printk(KERN_ERR PFX "failed to create onyx snd device!\n"); | |
897 | return -ENODEV; | |
898 | } | |
899 | ||
900 | /* nothing connected? what a joke! */ | |
901 | if ((onyx->codec.connected & 0xF) == 0) | |
902 | return -ENOTCONN; | |
903 | ||
904 | /* if no inputs are present... */ | |
905 | if ((onyx->codec.connected & 0xC) == 0) { | |
906 | if (!onyx->codec_info) | |
907 | onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL); | |
908 | if (!onyx->codec_info) | |
909 | return -ENOMEM; | |
910 | ci = onyx->codec_info; | |
911 | *ci = onyx_codec_info; | |
912 | ci->transfers++; | |
913 | } | |
914 | ||
915 | /* if no outputs are present... */ | |
916 | if ((onyx->codec.connected & 3) == 0) { | |
917 | if (!onyx->codec_info) | |
918 | onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL); | |
919 | if (!onyx->codec_info) | |
920 | return -ENOMEM; | |
921 | ci = onyx->codec_info; | |
922 | /* this is fine as there have to be inputs | |
923 | * if we end up in this part of the code */ | |
924 | *ci = onyx_codec_info; | |
925 | ci->transfers[1].formats = 0; | |
926 | } | |
927 | ||
928 | if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev, | |
929 | aoa_get_card(), | |
930 | ci, onyx)) { | |
931 | printk(KERN_ERR PFX "error creating onyx pcm\n"); | |
932 | return -ENODEV; | |
933 | } | |
934 | #define ADDCTL(n) \ | |
935 | do { \ | |
936 | ctl = snd_ctl_new1(&n, onyx); \ | |
937 | if (ctl) { \ | |
938 | ctl->id.device = \ | |
939 | onyx->codec.soundbus_dev->pcm->device; \ | |
940 | err = aoa_snd_ctl_add(ctl); \ | |
941 | if (err) \ | |
942 | goto error; \ | |
943 | } \ | |
944 | } while (0) | |
945 | ||
946 | if (onyx->codec.soundbus_dev->pcm) { | |
947 | /* give the user appropriate controls | |
948 | * depending on what inputs are connected */ | |
949 | if ((onyx->codec.connected & 0xC) == 0xC) | |
950 | ADDCTL(capture_source_control); | |
951 | else if (onyx->codec.connected & 4) | |
952 | onyx_set_capture_source(onyx, 0); | |
953 | else | |
954 | onyx_set_capture_source(onyx, 1); | |
955 | if (onyx->codec.connected & 0xC) | |
956 | ADDCTL(inputgain_control); | |
957 | ||
958 | /* depending on what output is connected, | |
959 | * give the user appropriate controls */ | |
960 | if (onyx->codec.connected & 1) { | |
961 | ADDCTL(volume_control); | |
962 | ADDCTL(mute_control); | |
963 | ADDCTL(ovr1_control); | |
964 | ADDCTL(flt0_control); | |
965 | ADDCTL(hpf_control); | |
966 | ADDCTL(dm12_control); | |
967 | /* spdif control defaults to off */ | |
968 | } | |
969 | if (onyx->codec.connected & 2) { | |
970 | ADDCTL(onyx_spdif_mask); | |
971 | ADDCTL(onyx_spdif_ctrl); | |
972 | } | |
973 | if ((onyx->codec.connected & 3) == 3) | |
974 | ADDCTL(spdif_control); | |
975 | /* if only S/PDIF is connected, enable it unconditionally */ | |
976 | if ((onyx->codec.connected & 3) == 2) { | |
977 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
978 | v |= ONYX_SPDIF_ENABLE; | |
979 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v); | |
980 | } | |
981 | } | |
982 | #undef ADDCTL | |
983 | printk(KERN_INFO PFX "attached to onyx codec via i2c\n"); | |
984 | ||
985 | return 0; | |
986 | error: | |
987 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); | |
988 | snd_device_free(aoa_get_card(), onyx); | |
989 | return err; | |
990 | } | |
991 | ||
992 | static void onyx_exit_codec(struct aoa_codec *codec) | |
993 | { | |
994 | struct onyx *onyx = codec_to_onyx(codec); | |
995 | ||
996 | if (!onyx->codec.soundbus_dev) { | |
997 | printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n"); | |
998 | return; | |
999 | } | |
1000 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); | |
1001 | } | |
1002 | ||
1003 | static struct i2c_driver onyx_driver; | |
1004 | ||
1005 | static int onyx_create(struct i2c_adapter *adapter, | |
1006 | struct device_node *node, | |
1007 | int addr) | |
1008 | { | |
1009 | struct onyx *onyx; | |
1010 | u8 dummy; | |
1011 | ||
1012 | onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL); | |
1013 | ||
1014 | if (!onyx) | |
1015 | return -ENOMEM; | |
1016 | ||
1017 | mutex_init(&onyx->mutex); | |
1018 | onyx->i2c.driver = &onyx_driver; | |
1019 | onyx->i2c.adapter = adapter; | |
1020 | onyx->i2c.addr = addr & 0x7f; | |
023ff3ee | 1021 | strlcpy(onyx->i2c.name, "onyx audio codec", I2C_NAME_SIZE); |
f3d9478b JB |
1022 | |
1023 | if (i2c_attach_client(&onyx->i2c)) { | |
1024 | printk(KERN_ERR PFX "failed to attach to i2c\n"); | |
1025 | goto fail; | |
1026 | } | |
1027 | ||
1028 | /* we try to read from register ONYX_REG_CONTROL | |
1029 | * to check if the codec is present */ | |
1030 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) { | |
1031 | i2c_detach_client(&onyx->i2c); | |
1032 | printk(KERN_ERR PFX "failed to read control register\n"); | |
1033 | goto fail; | |
1034 | } | |
1035 | ||
023ff3ee | 1036 | strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN); |
f3d9478b JB |
1037 | onyx->codec.owner = THIS_MODULE; |
1038 | onyx->codec.init = onyx_init_codec; | |
1039 | onyx->codec.exit = onyx_exit_codec; | |
1040 | onyx->codec.node = of_node_get(node); | |
1041 | ||
1042 | if (aoa_codec_register(&onyx->codec)) { | |
1043 | i2c_detach_client(&onyx->i2c); | |
1044 | goto fail; | |
1045 | } | |
1046 | printk(KERN_DEBUG PFX "created and attached onyx instance\n"); | |
1047 | return 0; | |
1048 | fail: | |
1049 | kfree(onyx); | |
1050 | return -EINVAL; | |
1051 | } | |
1052 | ||
1053 | static int onyx_i2c_attach(struct i2c_adapter *adapter) | |
1054 | { | |
1055 | struct device_node *busnode, *dev = NULL; | |
1056 | struct pmac_i2c_bus *bus; | |
1057 | ||
1058 | bus = pmac_i2c_adapter_to_bus(adapter); | |
1059 | if (bus == NULL) | |
1060 | return -ENODEV; | |
1061 | busnode = pmac_i2c_get_bus_node(bus); | |
1062 | ||
1063 | while ((dev = of_get_next_child(busnode, dev)) != NULL) { | |
55b61fec | 1064 | if (of_device_is_compatible(dev, "pcm3052")) { |
a7edd0e6 | 1065 | const u32 *addr; |
f3d9478b | 1066 | printk(KERN_DEBUG PFX "found pcm3052\n"); |
c4f55b39 | 1067 | addr = of_get_property(dev, "reg", NULL); |
f3d9478b JB |
1068 | if (!addr) |
1069 | return -ENODEV; | |
1070 | return onyx_create(adapter, dev, (*addr)>>1); | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | /* if that didn't work, try desperate mode for older | |
1075 | * machines that have stuff missing from the device tree */ | |
1076 | ||
55b61fec | 1077 | if (!of_device_is_compatible(busnode, "k2-i2c")) |
f3d9478b JB |
1078 | return -ENODEV; |
1079 | ||
1080 | printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n"); | |
1081 | /* probe both possible addresses for the onyx chip */ | |
1082 | if (onyx_create(adapter, NULL, 0x46) == 0) | |
1083 | return 0; | |
1084 | return onyx_create(adapter, NULL, 0x47); | |
1085 | } | |
1086 | ||
1087 | static int onyx_i2c_detach(struct i2c_client *client) | |
1088 | { | |
1089 | struct onyx *onyx = container_of(client, struct onyx, i2c); | |
1090 | int err; | |
1091 | ||
1092 | if ((err = i2c_detach_client(client))) | |
1093 | return err; | |
1094 | aoa_codec_unregister(&onyx->codec); | |
1095 | of_node_put(onyx->codec.node); | |
1096 | if (onyx->codec_info) | |
1097 | kfree(onyx->codec_info); | |
1098 | kfree(onyx); | |
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | static struct i2c_driver onyx_driver = { | |
1103 | .driver = { | |
1104 | .name = "aoa_codec_onyx", | |
1105 | .owner = THIS_MODULE, | |
1106 | }, | |
1107 | .attach_adapter = onyx_i2c_attach, | |
1108 | .detach_client = onyx_i2c_detach, | |
1109 | }; | |
1110 | ||
1111 | static int __init onyx_init(void) | |
1112 | { | |
1113 | return i2c_add_driver(&onyx_driver); | |
1114 | } | |
1115 | ||
1116 | static void __exit onyx_exit(void) | |
1117 | { | |
1118 | i2c_del_driver(&onyx_driver); | |
1119 | } | |
1120 | ||
1121 | module_init(onyx_init); | |
1122 | module_exit(onyx_exit); |