Commit | Line | Data |
---|---|---|
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> | |
5a0e3ad6 | 36 | #include <linux/slab.h> |
f3d9478b JB |
37 | MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>"); |
38 | MODULE_LICENSE("GPL"); | |
39 | MODULE_DESCRIPTION("pcm3052 (onyx) codec driver for snd-aoa"); | |
40 | ||
888dcb7c | 41 | #include "onyx.h" |
f3d9478b JB |
42 | #include "../aoa.h" |
43 | #include "../soundbus/soundbus.h" | |
44 | ||
45 | ||
46 | #define PFX "snd-aoa-codec-onyx: " | |
47 | ||
48 | struct onyx { | |
49 | /* cache registers 65 to 80, they are write-only! */ | |
50 | u8 cache[16]; | |
cfbf1eec | 51 | struct i2c_client *i2c; |
f3d9478b JB |
52 | struct aoa_codec codec; |
53 | u32 initialised:1, | |
54 | spdif_locked:1, | |
55 | analog_locked:1, | |
56 | original_mute:2; | |
57 | int open_count; | |
58 | struct codec_info *codec_info; | |
59 | ||
60 | /* mutex serializes concurrent access to the device | |
61 | * and this structure. | |
62 | */ | |
63 | struct mutex mutex; | |
64 | }; | |
65 | #define codec_to_onyx(c) container_of(c, struct onyx, codec) | |
66 | ||
67 | /* both return 0 if all ok, else on error */ | |
68 | static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value) | |
69 | { | |
70 | s32 v; | |
71 | ||
72 | if (reg != ONYX_REG_CONTROL) { | |
73 | *value = onyx->cache[reg-FIRSTREGISTER]; | |
74 | return 0; | |
75 | } | |
cfbf1eec | 76 | v = i2c_smbus_read_byte_data(onyx->i2c, reg); |
f3d9478b JB |
77 | if (v < 0) |
78 | return -1; | |
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 | ||
cfbf1eec | 88 | result = i2c_smbus_write_byte_data(onyx->i2c, reg, value); |
f3d9478b JB |
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 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, &l); | |
127 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r); | |
128 | mutex_unlock(&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 | ||
498ade1a TI |
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 | ||
f3d9478b JB |
149 | mutex_lock(&onyx->mutex); |
150 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l); | |
151 | onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &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(&onyx->mutex); | |
156 | return 0; | |
157 | } | |
158 | ||
159 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, | |
160 | ucontrol->value.integer.value[0] | |
161 | - VOLUME_RANGE_SHIFT); | |
162 | onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, | |
163 | ucontrol->value.integer.value[1] | |
164 | - VOLUME_RANGE_SHIFT); | |
165 | mutex_unlock(&onyx->mutex); | |
166 | ||
167 | return 1; | |
168 | } | |
169 | ||
170 | static 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, &ig); | |
203 | mutex_unlock(&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 | ||
498ade1a TI |
217 | if (ucontrol->value.integer.value[0] < 3 + INPUTGAIN_RANGE_SHIFT || |
218 | ucontrol->value.integer.value[0] > 28 + INPUTGAIN_RANGE_SHIFT) | |
219 | return -EINVAL; | |
f3d9478b JB |
220 | mutex_lock(&onyx->mutex); |
221 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &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, n); | |
227 | mutex_unlock(&onyx->mutex); | |
228 | ||
229 | return n != v; | |
230 | } | |
231 | ||
232 | static 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 char *texts[] = { "Line-In", "Microphone" }; | |
245 | ||
246 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
247 | uinfo->count = 1; | |
248 | uinfo->value.enumerated.items = 2; | |
249 | if (uinfo->value.enumerated.item > 1) | |
250 | uinfo->value.enumerated.item = 1; | |
251 | strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); | |
252 | return 0; | |
253 | } | |
254 | ||
255 | static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol, | |
256 | struct snd_ctl_elem_value *ucontrol) | |
257 | { | |
258 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
259 | s8 v; | |
260 | ||
261 | mutex_lock(&onyx->mutex); | |
262 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
263 | mutex_unlock(&onyx->mutex); | |
264 | ||
265 | ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC); | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
270 | static void onyx_set_capture_source(struct onyx *onyx, int mic) | |
271 | { | |
272 | s8 v; | |
273 | ||
274 | mutex_lock(&onyx->mutex); | |
275 | onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v); | |
276 | v &= ~ONYX_ADC_INPUT_MIC; | |
277 | if (mic) | |
278 | v |= ONYX_ADC_INPUT_MIC; | |
279 | onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, v); | |
280 | mutex_unlock(&onyx->mutex); | |
281 | } | |
282 | ||
283 | static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol, | |
284 | struct snd_ctl_elem_value *ucontrol) | |
285 | { | |
498ade1a TI |
286 | if (ucontrol->value.enumerated.item[0] > 1) |
287 | return -EINVAL; | |
f3d9478b JB |
288 | onyx_set_capture_source(snd_kcontrol_chip(kcontrol), |
289 | ucontrol->value.enumerated.item[0]); | |
290 | return 1; | |
291 | } | |
292 | ||
293 | static struct snd_kcontrol_new capture_source_control = { | |
294 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
295 | /* If we name this 'Input Source', it properly shows up in | |
888dcb7c | 296 | * alsamixer as a selection, * but it's shown under the |
f3d9478b JB |
297 | * 'Playback' category. |
298 | * If I name it 'Capture Source', it shows up in strange | |
299 | * ways (two bools of which one can be selected at a | |
300 | * time) but at least it's shown in the 'Capture' | |
301 | * category. | |
302 | * I was told that this was due to backward compatibility, | |
303 | * but I don't understand then why the mangling is *not* | |
304 | * done when I name it "Input Source"..... | |
305 | */ | |
306 | .name = "Capture Source", | |
307 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
308 | .info = onyx_snd_capture_source_info, | |
309 | .get = onyx_snd_capture_source_get, | |
310 | .put = onyx_snd_capture_source_put, | |
311 | }; | |
312 | ||
a5ce8890 | 313 | #define onyx_snd_mute_info snd_ctl_boolean_stereo_info |
f3d9478b JB |
314 | |
315 | static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol, | |
316 | struct snd_ctl_elem_value *ucontrol) | |
317 | { | |
318 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
319 | u8 c; | |
320 | ||
321 | mutex_lock(&onyx->mutex); | |
322 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c); | |
323 | mutex_unlock(&onyx->mutex); | |
324 | ||
325 | ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT); | |
326 | ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT); | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol, | |
332 | struct snd_ctl_elem_value *ucontrol) | |
333 | { | |
334 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
335 | u8 v = 0, c = 0; | |
336 | int err = -EBUSY; | |
337 | ||
338 | mutex_lock(&onyx->mutex); | |
339 | if (onyx->analog_locked) | |
340 | goto out_unlock; | |
341 | ||
342 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
343 | c = v; | |
344 | c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT); | |
345 | if (!ucontrol->value.integer.value[0]) | |
346 | c |= ONYX_MUTE_LEFT; | |
347 | if (!ucontrol->value.integer.value[1]) | |
348 | c |= ONYX_MUTE_RIGHT; | |
349 | err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c); | |
350 | ||
351 | out_unlock: | |
352 | mutex_unlock(&onyx->mutex); | |
353 | ||
354 | return !err ? (v != c) : err; | |
355 | } | |
356 | ||
357 | static struct snd_kcontrol_new mute_control = { | |
358 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
359 | .name = "Master Playback Switch", | |
360 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
361 | .info = onyx_snd_mute_info, | |
362 | .get = onyx_snd_mute_get, | |
363 | .put = onyx_snd_mute_put, | |
364 | }; | |
365 | ||
366 | ||
a5ce8890 | 367 | #define onyx_snd_single_bit_info snd_ctl_boolean_mono_info |
f3d9478b JB |
368 | |
369 | #define FLAG_POLARITY_INVERT 1 | |
370 | #define FLAG_SPDIFLOCK 2 | |
371 | ||
372 | static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol, | |
373 | struct snd_ctl_elem_value *ucontrol) | |
374 | { | |
375 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
376 | u8 c; | |
377 | long int pv = kcontrol->private_value; | |
378 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; | |
379 | u8 address = (pv >> 8) & 0xff; | |
380 | u8 mask = pv & 0xff; | |
381 | ||
382 | mutex_lock(&onyx->mutex); | |
383 | onyx_read_register(onyx, address, &c); | |
384 | mutex_unlock(&onyx->mutex); | |
385 | ||
386 | ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity; | |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
391 | static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol, | |
392 | struct snd_ctl_elem_value *ucontrol) | |
393 | { | |
394 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
395 | u8 v = 0, c = 0; | |
396 | int err; | |
397 | long int pv = kcontrol->private_value; | |
398 | u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT; | |
399 | u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK; | |
400 | u8 address = (pv >> 8) & 0xff; | |
401 | u8 mask = pv & 0xff; | |
402 | ||
403 | mutex_lock(&onyx->mutex); | |
404 | if (spdiflock && onyx->spdif_locked) { | |
405 | /* even if alsamixer doesn't care.. */ | |
406 | err = -EBUSY; | |
407 | goto out_unlock; | |
408 | } | |
409 | onyx_read_register(onyx, address, &v); | |
410 | c = v; | |
411 | c &= ~(mask); | |
412 | if (!!ucontrol->value.integer.value[0] ^ polarity) | |
413 | c |= mask; | |
414 | err = onyx_write_register(onyx, address, c); | |
415 | ||
416 | out_unlock: | |
417 | mutex_unlock(&onyx->mutex); | |
418 | ||
419 | return !err ? (v != c) : err; | |
420 | } | |
421 | ||
422 | #define SINGLE_BIT(n, type, description, address, mask, flags) \ | |
423 | static struct snd_kcontrol_new n##_control = { \ | |
424 | .iface = SNDRV_CTL_ELEM_IFACE_##type, \ | |
425 | .name = description, \ | |
426 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ | |
427 | .info = onyx_snd_single_bit_info, \ | |
428 | .get = onyx_snd_single_bit_get, \ | |
429 | .put = onyx_snd_single_bit_put, \ | |
430 | .private_value = (flags << 16) | (address << 8) | mask \ | |
431 | } | |
432 | ||
433 | SINGLE_BIT(spdif, | |
434 | MIXER, | |
435 | SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), | |
436 | ONYX_REG_DIG_INFO4, | |
437 | ONYX_SPDIF_ENABLE, | |
438 | FLAG_SPDIFLOCK); | |
439 | SINGLE_BIT(ovr1, | |
440 | MIXER, | |
441 | "Oversampling Rate", | |
442 | ONYX_REG_DAC_CONTROL, | |
443 | ONYX_OVR1, | |
444 | 0); | |
445 | SINGLE_BIT(flt0, | |
446 | MIXER, | |
447 | "Fast Digital Filter Rolloff", | |
448 | ONYX_REG_DAC_FILTER, | |
449 | ONYX_ROLLOFF_FAST, | |
450 | FLAG_POLARITY_INVERT); | |
451 | SINGLE_BIT(hpf, | |
452 | MIXER, | |
453 | "Highpass Filter", | |
454 | ONYX_REG_ADC_HPF_BYPASS, | |
455 | ONYX_HPF_DISABLE, | |
456 | FLAG_POLARITY_INVERT); | |
457 | SINGLE_BIT(dm12, | |
458 | MIXER, | |
459 | "Digital De-Emphasis", | |
460 | ONYX_REG_DAC_DEEMPH, | |
461 | ONYX_DIGDEEMPH_CTRL, | |
462 | 0); | |
463 | ||
464 | static int onyx_spdif_info(struct snd_kcontrol *kcontrol, | |
465 | struct snd_ctl_elem_info *uinfo) | |
466 | { | |
467 | uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; | |
468 | uinfo->count = 1; | |
469 | return 0; | |
470 | } | |
471 | ||
472 | static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol, | |
473 | struct snd_ctl_elem_value *ucontrol) | |
474 | { | |
475 | /* datasheet page 30, all others are 0 */ | |
476 | ucontrol->value.iec958.status[0] = 0x3e; | |
477 | ucontrol->value.iec958.status[1] = 0xff; | |
478 | ||
479 | ucontrol->value.iec958.status[3] = 0x3f; | |
480 | ucontrol->value.iec958.status[4] = 0x0f; | |
888dcb7c | 481 | |
f3d9478b JB |
482 | return 0; |
483 | } | |
484 | ||
485 | static struct snd_kcontrol_new onyx_spdif_mask = { | |
486 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
487 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
488 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK), | |
489 | .info = onyx_spdif_info, | |
490 | .get = onyx_spdif_mask_get, | |
491 | }; | |
492 | ||
493 | static int onyx_spdif_get(struct snd_kcontrol *kcontrol, | |
494 | struct snd_ctl_elem_value *ucontrol) | |
495 | { | |
496 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
497 | u8 v; | |
498 | ||
499 | mutex_lock(&onyx->mutex); | |
500 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v); | |
501 | ucontrol->value.iec958.status[0] = v & 0x3e; | |
502 | ||
503 | onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v); | |
504 | ucontrol->value.iec958.status[1] = v; | |
505 | ||
506 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v); | |
507 | ucontrol->value.iec958.status[3] = v & 0x3f; | |
508 | ||
509 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
510 | ucontrol->value.iec958.status[4] = v & 0x0f; | |
511 | mutex_unlock(&onyx->mutex); | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
516 | static int onyx_spdif_put(struct snd_kcontrol *kcontrol, | |
517 | struct snd_ctl_elem_value *ucontrol) | |
518 | { | |
519 | struct onyx *onyx = snd_kcontrol_chip(kcontrol); | |
520 | u8 v; | |
521 | ||
522 | mutex_lock(&onyx->mutex); | |
523 | onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v); | |
524 | v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e); | |
525 | onyx_write_register(onyx, ONYX_REG_DIG_INFO1, v); | |
526 | ||
527 | v = ucontrol->value.iec958.status[1]; | |
528 | onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v); | |
529 | ||
530 | onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v); | |
531 | v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f); | |
532 | onyx_write_register(onyx, ONYX_REG_DIG_INFO3, v); | |
533 | ||
534 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
535 | v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f); | |
536 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v); | |
537 | mutex_unlock(&onyx->mutex); | |
538 | ||
539 | return 1; | |
540 | } | |
541 | ||
542 | static struct snd_kcontrol_new onyx_spdif_ctrl = { | |
543 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, | |
544 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
545 | .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), | |
546 | .info = onyx_spdif_info, | |
547 | .get = onyx_spdif_get, | |
548 | .put = onyx_spdif_put, | |
549 | }; | |
550 | ||
551 | /* our registers */ | |
552 | ||
553 | static u8 register_map[] = { | |
554 | ONYX_REG_DAC_ATTEN_LEFT, | |
555 | ONYX_REG_DAC_ATTEN_RIGHT, | |
556 | ONYX_REG_CONTROL, | |
557 | ONYX_REG_DAC_CONTROL, | |
558 | ONYX_REG_DAC_DEEMPH, | |
559 | ONYX_REG_DAC_FILTER, | |
560 | ONYX_REG_DAC_OUTPHASE, | |
561 | ONYX_REG_ADC_CONTROL, | |
562 | ONYX_REG_ADC_HPF_BYPASS, | |
563 | ONYX_REG_DIG_INFO1, | |
564 | ONYX_REG_DIG_INFO2, | |
565 | ONYX_REG_DIG_INFO3, | |
566 | ONYX_REG_DIG_INFO4 | |
567 | }; | |
568 | ||
569 | static u8 initial_values[ARRAY_SIZE(register_map)] = { | |
570 | 0x80, 0x80, /* muted */ | |
571 | ONYX_MRST | ONYX_SRST, /* but handled specially! */ | |
572 | ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT, | |
573 | 0, /* no deemphasis */ | |
574 | ONYX_DAC_FILTER_ALWAYS, | |
575 | ONYX_OUTPHASE_INVERTED, | |
576 | (-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/ | |
577 | ONYX_ADC_HPF_ALWAYS, | |
578 | (1<<2), /* pcm audio */ | |
579 | 2, /* category: pcm coder */ | |
580 | 0, /* sampling frequency 44.1 kHz, clock accuracy level II */ | |
581 | 1 /* 24 bit depth */ | |
582 | }; | |
583 | ||
584 | /* reset registers of chip, either to initial or to previous values */ | |
585 | static int onyx_register_init(struct onyx *onyx) | |
586 | { | |
587 | int i; | |
588 | u8 val; | |
589 | u8 regs[sizeof(initial_values)]; | |
590 | ||
591 | if (!onyx->initialised) { | |
592 | memcpy(regs, initial_values, sizeof(initial_values)); | |
593 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val)) | |
594 | return -1; | |
595 | val &= ~ONYX_SILICONVERSION; | |
596 | val |= initial_values[3]; | |
597 | regs[3] = val; | |
598 | } else { | |
599 | for (i=0; i<sizeof(register_map); i++) | |
600 | regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER]; | |
601 | } | |
602 | ||
603 | for (i=0; i<sizeof(register_map); i++) { | |
604 | if (onyx_write_register(onyx, register_map[i], regs[i])) | |
605 | return -1; | |
606 | } | |
607 | onyx->initialised = 1; | |
608 | return 0; | |
609 | } | |
610 | ||
611 | static struct transfer_info onyx_transfers[] = { | |
612 | /* this is first so we can skip it if no input is present... | |
613 | * No hardware exists with that, but it's here as an example | |
614 | * of what to do :) */ | |
615 | { | |
616 | /* analog input */ | |
617 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
618 | SNDRV_PCM_FMTBIT_S16_BE | | |
619 | SNDRV_PCM_FMTBIT_S24_BE, | |
620 | .rates = SNDRV_PCM_RATE_8000_96000, | |
621 | .transfer_in = 1, | |
622 | .must_be_clock_source = 0, | |
623 | .tag = 0, | |
624 | }, | |
625 | { | |
626 | /* if analog and digital are currently off, anything should go, | |
627 | * so this entry describes everything we can do... */ | |
628 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
629 | SNDRV_PCM_FMTBIT_S16_BE | | |
630 | SNDRV_PCM_FMTBIT_S24_BE | |
631 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
632 | | SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
633 | #endif | |
634 | , | |
635 | .rates = SNDRV_PCM_RATE_8000_96000, | |
636 | .tag = 0, | |
637 | }, | |
638 | { | |
639 | /* analog output */ | |
640 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
641 | SNDRV_PCM_FMTBIT_S16_BE | | |
642 | SNDRV_PCM_FMTBIT_S24_BE, | |
643 | .rates = SNDRV_PCM_RATE_8000_96000, | |
644 | .transfer_in = 0, | |
645 | .must_be_clock_source = 0, | |
646 | .tag = 1, | |
647 | }, | |
648 | { | |
649 | /* digital pcm output, also possible for analog out */ | |
650 | .formats = SNDRV_PCM_FMTBIT_S8 | | |
651 | SNDRV_PCM_FMTBIT_S16_BE | | |
652 | SNDRV_PCM_FMTBIT_S24_BE, | |
653 | .rates = SNDRV_PCM_RATE_32000 | | |
654 | SNDRV_PCM_RATE_44100 | | |
655 | SNDRV_PCM_RATE_48000, | |
656 | .transfer_in = 0, | |
657 | .must_be_clock_source = 0, | |
658 | .tag = 2, | |
659 | }, | |
660 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
c28054d4 | 661 | /* Once alsa gets supports for this kind of thing we can add it... */ |
f3d9478b JB |
662 | { |
663 | /* digital compressed output */ | |
664 | .formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE, | |
665 | .rates = SNDRV_PCM_RATE_32000 | | |
666 | SNDRV_PCM_RATE_44100 | | |
667 | SNDRV_PCM_RATE_48000, | |
668 | .tag = 2, | |
669 | }, | |
670 | #endif | |
671 | {} | |
672 | }; | |
673 | ||
674 | static int onyx_usable(struct codec_info_item *cii, | |
675 | struct transfer_info *ti, | |
676 | struct transfer_info *out) | |
677 | { | |
678 | u8 v; | |
679 | struct onyx *onyx = cii->codec_data; | |
680 | int spdif_enabled, analog_enabled; | |
681 | ||
682 | mutex_lock(&onyx->mutex); | |
683 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
684 | spdif_enabled = !!(v & ONYX_SPDIF_ENABLE); | |
685 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
888dcb7c | 686 | analog_enabled = |
f3d9478b JB |
687 | (v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT)) |
688 | != (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT); | |
689 | mutex_unlock(&onyx->mutex); | |
690 | ||
691 | switch (ti->tag) { | |
692 | case 0: return 1; | |
693 | case 1: return analog_enabled; | |
694 | case 2: return spdif_enabled; | |
695 | } | |
696 | return 1; | |
697 | } | |
698 | ||
699 | static int onyx_prepare(struct codec_info_item *cii, | |
700 | struct bus_info *bi, | |
701 | struct snd_pcm_substream *substream) | |
702 | { | |
703 | u8 v; | |
704 | struct onyx *onyx = cii->codec_data; | |
705 | int err = -EBUSY; | |
706 | ||
707 | mutex_lock(&onyx->mutex); | |
708 | ||
709 | #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE | |
710 | if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) { | |
711 | /* mute and lock analog output */ | |
712 | onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v); | |
c28054d4 | 713 | if (onyx_write_register(onyx, |
f3d9478b JB |
714 | ONYX_REG_DAC_CONTROL, |
715 | v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT)) | |
716 | goto out_unlock; | |
717 | onyx->analog_locked = 1; | |
718 | err = 0; | |
719 | goto out_unlock; | |
720 | } | |
721 | #endif | |
722 | switch (substream->runtime->rate) { | |
723 | case 32000: | |
724 | case 44100: | |
725 | case 48000: | |
726 | /* these rates are ok for all outputs */ | |
727 | /* FIXME: program spdif channel control bits here so that | |
728 | * userspace doesn't have to if it only plays pcm! */ | |
729 | err = 0; | |
730 | goto out_unlock; | |
731 | default: | |
732 | /* got some rate that the digital output can't do, | |
733 | * so disable and lock it */ | |
734 | onyx_read_register(cii->codec_data, ONYX_REG_DIG_INFO4, &v); | |
735 | if (onyx_write_register(onyx, | |
736 | ONYX_REG_DIG_INFO4, | |
737 | v & ~ONYX_SPDIF_ENABLE)) | |
738 | goto out_unlock; | |
739 | onyx->spdif_locked = 1; | |
740 | err = 0; | |
741 | goto out_unlock; | |
742 | } | |
743 | ||
744 | out_unlock: | |
745 | mutex_unlock(&onyx->mutex); | |
746 | ||
747 | return err; | |
748 | } | |
749 | ||
750 | static int onyx_open(struct codec_info_item *cii, | |
751 | struct snd_pcm_substream *substream) | |
752 | { | |
753 | struct onyx *onyx = cii->codec_data; | |
754 | ||
755 | mutex_lock(&onyx->mutex); | |
756 | onyx->open_count++; | |
757 | mutex_unlock(&onyx->mutex); | |
758 | ||
759 | return 0; | |
760 | } | |
761 | ||
762 | static int onyx_close(struct codec_info_item *cii, | |
763 | struct snd_pcm_substream *substream) | |
764 | { | |
765 | struct onyx *onyx = cii->codec_data; | |
766 | ||
767 | mutex_lock(&onyx->mutex); | |
768 | onyx->open_count--; | |
769 | if (!onyx->open_count) | |
770 | onyx->spdif_locked = onyx->analog_locked = 0; | |
771 | mutex_unlock(&onyx->mutex); | |
772 | ||
773 | return 0; | |
774 | } | |
775 | ||
776 | static int onyx_switch_clock(struct codec_info_item *cii, | |
777 | enum clock_switch what) | |
778 | { | |
779 | struct onyx *onyx = cii->codec_data; | |
780 | ||
781 | mutex_lock(&onyx->mutex); | |
782 | /* this *MUST* be more elaborate later... */ | |
783 | switch (what) { | |
784 | case CLOCK_SWITCH_PREPARE_SLAVE: | |
785 | onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio); | |
786 | break; | |
787 | case CLOCK_SWITCH_SLAVE: | |
788 | onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio); | |
789 | break; | |
790 | default: /* silence warning */ | |
791 | break; | |
792 | } | |
793 | mutex_unlock(&onyx->mutex); | |
794 | ||
795 | return 0; | |
796 | } | |
797 | ||
798 | #ifdef CONFIG_PM | |
799 | ||
800 | static int onyx_suspend(struct codec_info_item *cii, pm_message_t state) | |
801 | { | |
802 | struct onyx *onyx = cii->codec_data; | |
803 | u8 v; | |
804 | int err = -ENXIO; | |
805 | ||
806 | mutex_lock(&onyx->mutex); | |
807 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v)) | |
808 | goto out_unlock; | |
809 | onyx_write_register(onyx, ONYX_REG_CONTROL, v | ONYX_ADPSV | ONYX_DAPSV); | |
810 | /* Apple does a sleep here but the datasheet says to do it on resume */ | |
811 | err = 0; | |
812 | out_unlock: | |
813 | mutex_unlock(&onyx->mutex); | |
814 | ||
815 | return err; | |
816 | } | |
817 | ||
818 | static int onyx_resume(struct codec_info_item *cii) | |
819 | { | |
820 | struct onyx *onyx = cii->codec_data; | |
821 | u8 v; | |
822 | int err = -ENXIO; | |
823 | ||
824 | mutex_lock(&onyx->mutex); | |
b0148a98 JB |
825 | |
826 | /* reset codec */ | |
827 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
828 | msleep(1); | |
829 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); | |
830 | msleep(1); | |
831 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
832 | msleep(1); | |
833 | ||
834 | /* take codec out of suspend (if it still is after reset) */ | |
f3d9478b JB |
835 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v)) |
836 | goto out_unlock; | |
837 | onyx_write_register(onyx, ONYX_REG_CONTROL, v & ~(ONYX_ADPSV | ONYX_DAPSV)); | |
838 | /* FIXME: should divide by sample rate, but 8k is the lowest we go */ | |
839 | msleep(2205000/8000); | |
840 | /* reset all values */ | |
841 | onyx_register_init(onyx); | |
842 | err = 0; | |
843 | out_unlock: | |
844 | mutex_unlock(&onyx->mutex); | |
845 | ||
846 | return err; | |
847 | } | |
848 | ||
849 | #endif /* CONFIG_PM */ | |
850 | ||
851 | static struct codec_info onyx_codec_info = { | |
852 | .transfers = onyx_transfers, | |
853 | .sysclock_factor = 256, | |
854 | .bus_factor = 64, | |
855 | .owner = THIS_MODULE, | |
856 | .usable = onyx_usable, | |
857 | .prepare = onyx_prepare, | |
858 | .open = onyx_open, | |
859 | .close = onyx_close, | |
860 | .switch_clock = onyx_switch_clock, | |
861 | #ifdef CONFIG_PM | |
862 | .suspend = onyx_suspend, | |
863 | .resume = onyx_resume, | |
864 | #endif | |
865 | }; | |
866 | ||
867 | static int onyx_init_codec(struct aoa_codec *codec) | |
868 | { | |
869 | struct onyx *onyx = codec_to_onyx(codec); | |
870 | struct snd_kcontrol *ctl; | |
871 | struct codec_info *ci = &onyx_codec_info; | |
872 | u8 v; | |
873 | int err; | |
874 | ||
875 | if (!onyx->codec.gpio || !onyx->codec.gpio->methods) { | |
876 | printk(KERN_ERR PFX "gpios not assigned!!\n"); | |
877 | return -EINVAL; | |
878 | } | |
879 | ||
880 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
881 | msleep(1); | |
882 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1); | |
883 | msleep(1); | |
884 | onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0); | |
885 | msleep(1); | |
888dcb7c | 886 | |
f3d9478b JB |
887 | if (onyx_register_init(onyx)) { |
888 | printk(KERN_ERR PFX "failed to initialise onyx registers\n"); | |
889 | return -ENODEV; | |
890 | } | |
891 | ||
892 | if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, onyx, &ops)) { | |
893 | printk(KERN_ERR PFX "failed to create onyx snd device!\n"); | |
894 | return -ENODEV; | |
895 | } | |
896 | ||
897 | /* nothing connected? what a joke! */ | |
898 | if ((onyx->codec.connected & 0xF) == 0) | |
899 | return -ENOTCONN; | |
900 | ||
901 | /* if no inputs are present... */ | |
902 | if ((onyx->codec.connected & 0xC) == 0) { | |
903 | if (!onyx->codec_info) | |
904 | onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL); | |
905 | if (!onyx->codec_info) | |
906 | return -ENOMEM; | |
907 | ci = onyx->codec_info; | |
908 | *ci = onyx_codec_info; | |
909 | ci->transfers++; | |
910 | } | |
911 | ||
912 | /* if no outputs are present... */ | |
913 | if ((onyx->codec.connected & 3) == 0) { | |
914 | if (!onyx->codec_info) | |
915 | onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL); | |
916 | if (!onyx->codec_info) | |
917 | return -ENOMEM; | |
918 | ci = onyx->codec_info; | |
919 | /* this is fine as there have to be inputs | |
920 | * if we end up in this part of the code */ | |
921 | *ci = onyx_codec_info; | |
922 | ci->transfers[1].formats = 0; | |
923 | } | |
924 | ||
925 | if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev, | |
926 | aoa_get_card(), | |
927 | ci, onyx)) { | |
928 | printk(KERN_ERR PFX "error creating onyx pcm\n"); | |
929 | return -ENODEV; | |
930 | } | |
931 | #define ADDCTL(n) \ | |
932 | do { \ | |
933 | ctl = snd_ctl_new1(&n, onyx); \ | |
934 | if (ctl) { \ | |
935 | ctl->id.device = \ | |
936 | onyx->codec.soundbus_dev->pcm->device; \ | |
937 | err = aoa_snd_ctl_add(ctl); \ | |
938 | if (err) \ | |
939 | goto error; \ | |
940 | } \ | |
941 | } while (0) | |
942 | ||
943 | if (onyx->codec.soundbus_dev->pcm) { | |
944 | /* give the user appropriate controls | |
945 | * depending on what inputs are connected */ | |
946 | if ((onyx->codec.connected & 0xC) == 0xC) | |
947 | ADDCTL(capture_source_control); | |
948 | else if (onyx->codec.connected & 4) | |
949 | onyx_set_capture_source(onyx, 0); | |
950 | else | |
951 | onyx_set_capture_source(onyx, 1); | |
952 | if (onyx->codec.connected & 0xC) | |
953 | ADDCTL(inputgain_control); | |
954 | ||
955 | /* depending on what output is connected, | |
956 | * give the user appropriate controls */ | |
957 | if (onyx->codec.connected & 1) { | |
958 | ADDCTL(volume_control); | |
959 | ADDCTL(mute_control); | |
960 | ADDCTL(ovr1_control); | |
961 | ADDCTL(flt0_control); | |
962 | ADDCTL(hpf_control); | |
963 | ADDCTL(dm12_control); | |
964 | /* spdif control defaults to off */ | |
965 | } | |
966 | if (onyx->codec.connected & 2) { | |
967 | ADDCTL(onyx_spdif_mask); | |
968 | ADDCTL(onyx_spdif_ctrl); | |
969 | } | |
970 | if ((onyx->codec.connected & 3) == 3) | |
971 | ADDCTL(spdif_control); | |
972 | /* if only S/PDIF is connected, enable it unconditionally */ | |
973 | if ((onyx->codec.connected & 3) == 2) { | |
974 | onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v); | |
975 | v |= ONYX_SPDIF_ENABLE; | |
976 | onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v); | |
977 | } | |
978 | } | |
979 | #undef ADDCTL | |
980 | printk(KERN_INFO PFX "attached to onyx codec via i2c\n"); | |
981 | ||
982 | return 0; | |
983 | error: | |
984 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); | |
985 | snd_device_free(aoa_get_card(), onyx); | |
986 | return err; | |
987 | } | |
988 | ||
989 | static void onyx_exit_codec(struct aoa_codec *codec) | |
990 | { | |
991 | struct onyx *onyx = codec_to_onyx(codec); | |
992 | ||
993 | if (!onyx->codec.soundbus_dev) { | |
994 | printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n"); | |
995 | return; | |
996 | } | |
997 | onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); | |
998 | } | |
999 | ||
f3d9478b JB |
1000 | static int onyx_create(struct i2c_adapter *adapter, |
1001 | struct device_node *node, | |
1002 | int addr) | |
1003 | { | |
cfbf1eec JD |
1004 | struct i2c_board_info info; |
1005 | struct i2c_client *client; | |
1006 | ||
1007 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
1008 | strlcpy(info.type, "aoa_codec_onyx", I2C_NAME_SIZE); | |
1009 | info.addr = addr; | |
1010 | info.platform_data = node; | |
1011 | client = i2c_new_device(adapter, &info); | |
1012 | if (!client) | |
1013 | return -ENODEV; | |
1014 | ||
1015 | /* | |
1016 | * We know the driver is already loaded, so the device should be | |
1017 | * already bound. If not it means binding failed, which suggests | |
1018 | * the device doesn't really exist and should be deleted. | |
1019 | * Ideally this would be replaced by better checks _before_ | |
1020 | * instantiating the device. | |
1021 | */ | |
1022 | if (!client->driver) { | |
1023 | i2c_unregister_device(client); | |
1024 | return -ENODEV; | |
1025 | } | |
1026 | ||
1027 | /* | |
1028 | * Let i2c-core delete that device on driver removal. | |
1029 | * This is safe because i2c-core holds the core_lock mutex for us. | |
1030 | */ | |
1031 | list_add_tail(&client->detected, &client->driver->clients); | |
1032 | return 0; | |
1033 | } | |
1034 | ||
1035 | static int onyx_i2c_probe(struct i2c_client *client, | |
1036 | const struct i2c_device_id *id) | |
1037 | { | |
1038 | struct device_node *node = client->dev.platform_data; | |
f3d9478b JB |
1039 | struct onyx *onyx; |
1040 | u8 dummy; | |
1041 | ||
1042 | onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL); | |
1043 | ||
1044 | if (!onyx) | |
1045 | return -ENOMEM; | |
1046 | ||
1047 | mutex_init(&onyx->mutex); | |
cfbf1eec JD |
1048 | onyx->i2c = client; |
1049 | i2c_set_clientdata(client, onyx); | |
f3d9478b JB |
1050 | |
1051 | /* we try to read from register ONYX_REG_CONTROL | |
1052 | * to check if the codec is present */ | |
1053 | if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) { | |
f3d9478b JB |
1054 | printk(KERN_ERR PFX "failed to read control register\n"); |
1055 | goto fail; | |
1056 | } | |
1057 | ||
023ff3ee | 1058 | strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN); |
f3d9478b JB |
1059 | onyx->codec.owner = THIS_MODULE; |
1060 | onyx->codec.init = onyx_init_codec; | |
1061 | onyx->codec.exit = onyx_exit_codec; | |
1062 | onyx->codec.node = of_node_get(node); | |
1063 | ||
1064 | if (aoa_codec_register(&onyx->codec)) { | |
f3d9478b JB |
1065 | goto fail; |
1066 | } | |
1067 | printk(KERN_DEBUG PFX "created and attached onyx instance\n"); | |
1068 | return 0; | |
1069 | fail: | |
cfbf1eec | 1070 | i2c_set_clientdata(client, NULL); |
f3d9478b | 1071 | kfree(onyx); |
cfbf1eec | 1072 | return -ENODEV; |
f3d9478b JB |
1073 | } |
1074 | ||
1075 | static int onyx_i2c_attach(struct i2c_adapter *adapter) | |
1076 | { | |
1077 | struct device_node *busnode, *dev = NULL; | |
1078 | struct pmac_i2c_bus *bus; | |
1079 | ||
1080 | bus = pmac_i2c_adapter_to_bus(adapter); | |
1081 | if (bus == NULL) | |
1082 | return -ENODEV; | |
1083 | busnode = pmac_i2c_get_bus_node(bus); | |
1084 | ||
1085 | while ((dev = of_get_next_child(busnode, dev)) != NULL) { | |
55b61fec | 1086 | if (of_device_is_compatible(dev, "pcm3052")) { |
a7edd0e6 | 1087 | const u32 *addr; |
f3d9478b | 1088 | printk(KERN_DEBUG PFX "found pcm3052\n"); |
c4f55b39 | 1089 | addr = of_get_property(dev, "reg", NULL); |
f3d9478b JB |
1090 | if (!addr) |
1091 | return -ENODEV; | |
1092 | return onyx_create(adapter, dev, (*addr)>>1); | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | /* if that didn't work, try desperate mode for older | |
1097 | * machines that have stuff missing from the device tree */ | |
888dcb7c | 1098 | |
55b61fec | 1099 | if (!of_device_is_compatible(busnode, "k2-i2c")) |
f3d9478b JB |
1100 | return -ENODEV; |
1101 | ||
1102 | printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n"); | |
1103 | /* probe both possible addresses for the onyx chip */ | |
1104 | if (onyx_create(adapter, NULL, 0x46) == 0) | |
1105 | return 0; | |
1106 | return onyx_create(adapter, NULL, 0x47); | |
1107 | } | |
1108 | ||
cfbf1eec | 1109 | static int onyx_i2c_remove(struct i2c_client *client) |
f3d9478b | 1110 | { |
cfbf1eec | 1111 | struct onyx *onyx = i2c_get_clientdata(client); |
f3d9478b | 1112 | |
f3d9478b JB |
1113 | aoa_codec_unregister(&onyx->codec); |
1114 | of_node_put(onyx->codec.node); | |
1115 | if (onyx->codec_info) | |
1116 | kfree(onyx->codec_info); | |
cfbf1eec | 1117 | i2c_set_clientdata(client, onyx); |
f3d9478b JB |
1118 | kfree(onyx); |
1119 | return 0; | |
1120 | } | |
1121 | ||
cfbf1eec JD |
1122 | static const struct i2c_device_id onyx_i2c_id[] = { |
1123 | { "aoa_codec_onyx", 0 }, | |
1124 | { } | |
1125 | }; | |
1126 | ||
f3d9478b JB |
1127 | static struct i2c_driver onyx_driver = { |
1128 | .driver = { | |
1129 | .name = "aoa_codec_onyx", | |
1130 | .owner = THIS_MODULE, | |
1131 | }, | |
1132 | .attach_adapter = onyx_i2c_attach, | |
cfbf1eec JD |
1133 | .probe = onyx_i2c_probe, |
1134 | .remove = onyx_i2c_remove, | |
1135 | .id_table = onyx_i2c_id, | |
f3d9478b JB |
1136 | }; |
1137 | ||
1138 | static int __init onyx_init(void) | |
1139 | { | |
1140 | return i2c_add_driver(&onyx_driver); | |
1141 | } | |
1142 | ||
1143 | static void __exit onyx_exit(void) | |
1144 | { | |
1145 | i2c_del_driver(&onyx_driver); | |
1146 | } | |
1147 | ||
1148 | module_init(onyx_init); | |
1149 | module_exit(onyx_exit); |