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USB: ch341: fix termios handling
[linux-2.6/verdex.git] / sound / aoa / codecs / snd-aoa-codec-onyx.c
blob71e3f93606580510dc5caf7c374f75ee45f1b460
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 #define onyx_snd_mute_info snd_ctl_boolean_stereo_info
301
302 static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol,
303 struct snd_ctl_elem_value *ucontrol)
304 {
305 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
306 u8 c;
307
308 mutex_lock(&onyx->mutex);
309 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c);
310 mutex_unlock(&onyx->mutex);
311
312 ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT);
313 ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT);
314
315 return 0;
316 }
317
318 static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol,
319 struct snd_ctl_elem_value *ucontrol)
320 {
321 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
322 u8 v = 0, c = 0;
323 int err = -EBUSY;
324
325 mutex_lock(&onyx->mutex);
326 if (onyx->analog_locked)
327 goto out_unlock;
328
329 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
330 c = v;
331 c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT);
332 if (!ucontrol->value.integer.value[0])
333 c |= ONYX_MUTE_LEFT;
334 if (!ucontrol->value.integer.value[1])
335 c |= ONYX_MUTE_RIGHT;
336 err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c);
337
338 out_unlock:
339 mutex_unlock(&onyx->mutex);
340
341 return !err ? (v != c) : err;
342 }
343
344 static struct snd_kcontrol_new mute_control = {
345 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
346 .name = "Master Playback Switch",
347 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
348 .info = onyx_snd_mute_info,
349 .get = onyx_snd_mute_get,
350 .put = onyx_snd_mute_put,
351 };
352
353
354 #define onyx_snd_single_bit_info snd_ctl_boolean_mono_info
355
356 #define FLAG_POLARITY_INVERT 1
357 #define FLAG_SPDIFLOCK 2
358
359 static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol,
360 struct snd_ctl_elem_value *ucontrol)
361 {
362 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
363 u8 c;
364 long int pv = kcontrol->private_value;
365 u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
366 u8 address = (pv >> 8) & 0xff;
367 u8 mask = pv & 0xff;
368
369 mutex_lock(&onyx->mutex);
370 onyx_read_register(onyx, address, &c);
371 mutex_unlock(&onyx->mutex);
372
373 ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
374
375 return 0;
376 }
377
378 static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol,
379 struct snd_ctl_elem_value *ucontrol)
380 {
381 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
382 u8 v = 0, c = 0;
383 int err;
384 long int pv = kcontrol->private_value;
385 u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
386 u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK;
387 u8 address = (pv >> 8) & 0xff;
388 u8 mask = pv & 0xff;
389
390 mutex_lock(&onyx->mutex);
391 if (spdiflock && onyx->spdif_locked) {
392 /* even if alsamixer doesn't care.. */
393 err = -EBUSY;
394 goto out_unlock;
395 }
396 onyx_read_register(onyx, address, &v);
397 c = v;
398 c &= ~(mask);
399 if (!!ucontrol->value.integer.value[0] ^ polarity)
400 c |= mask;
401 err = onyx_write_register(onyx, address, c);
402
403 out_unlock:
404 mutex_unlock(&onyx->mutex);
405
406 return !err ? (v != c) : err;
407 }
408
409 #define SINGLE_BIT(n, type, description, address, mask, flags) \
410 static struct snd_kcontrol_new n##_control = { \
411 .iface = SNDRV_CTL_ELEM_IFACE_##type, \
412 .name = description, \
413 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
414 .info = onyx_snd_single_bit_info, \
415 .get = onyx_snd_single_bit_get, \
416 .put = onyx_snd_single_bit_put, \
417 .private_value = (flags << 16) | (address << 8) | mask \
418 }
419
420 SINGLE_BIT(spdif,
421 MIXER,
422 SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
423 ONYX_REG_DIG_INFO4,
424 ONYX_SPDIF_ENABLE,
425 FLAG_SPDIFLOCK);
426 SINGLE_BIT(ovr1,
427 MIXER,
428 "Oversampling Rate",
429 ONYX_REG_DAC_CONTROL,
430 ONYX_OVR1,
431 0);
432 SINGLE_BIT(flt0,
433 MIXER,
434 "Fast Digital Filter Rolloff",
435 ONYX_REG_DAC_FILTER,
436 ONYX_ROLLOFF_FAST,
437 FLAG_POLARITY_INVERT);
438 SINGLE_BIT(hpf,
439 MIXER,
440 "Highpass Filter",
441 ONYX_REG_ADC_HPF_BYPASS,
442 ONYX_HPF_DISABLE,
443 FLAG_POLARITY_INVERT);
444 SINGLE_BIT(dm12,
445 MIXER,
446 "Digital De-Emphasis",
447 ONYX_REG_DAC_DEEMPH,
448 ONYX_DIGDEEMPH_CTRL,
449 0);
450
451 static int onyx_spdif_info(struct snd_kcontrol *kcontrol,
452 struct snd_ctl_elem_info *uinfo)
453 {
454 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
455 uinfo->count = 1;
456 return 0;
457 }
458
459 static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol,
460 struct snd_ctl_elem_value *ucontrol)
461 {
462 /* datasheet page 30, all others are 0 */
463 ucontrol->value.iec958.status[0] = 0x3e;
464 ucontrol->value.iec958.status[1] = 0xff;
465
466 ucontrol->value.iec958.status[3] = 0x3f;
467 ucontrol->value.iec958.status[4] = 0x0f;
468
469 return 0;
470 }
471
472 static struct snd_kcontrol_new onyx_spdif_mask = {
473 .access = SNDRV_CTL_ELEM_ACCESS_READ,
474 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
475 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
476 .info = onyx_spdif_info,
477 .get = onyx_spdif_mask_get,
478 };
479
480 static int onyx_spdif_get(struct snd_kcontrol *kcontrol,
481 struct snd_ctl_elem_value *ucontrol)
482 {
483 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
484 u8 v;
485
486 mutex_lock(&onyx->mutex);
487 onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
488 ucontrol->value.iec958.status[0] = v & 0x3e;
489
490 onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v);
491 ucontrol->value.iec958.status[1] = v;
492
493 onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
494 ucontrol->value.iec958.status[3] = v & 0x3f;
495
496 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
497 ucontrol->value.iec958.status[4] = v & 0x0f;
498 mutex_unlock(&onyx->mutex);
499
500 return 0;
501 }
502
503 static int onyx_spdif_put(struct snd_kcontrol *kcontrol,
504 struct snd_ctl_elem_value *ucontrol)
505 {
506 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
507 u8 v;
508
509 mutex_lock(&onyx->mutex);
510 onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
511 v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e);
512 onyx_write_register(onyx, ONYX_REG_DIG_INFO1, v);
513
514 v = ucontrol->value.iec958.status[1];
515 onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v);
516
517 onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
518 v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f);
519 onyx_write_register(onyx, ONYX_REG_DIG_INFO3, v);
520
521 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
522 v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f);
523 onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
524 mutex_unlock(&onyx->mutex);
525
526 return 1;
527 }
528
529 static struct snd_kcontrol_new onyx_spdif_ctrl = {
530 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
531 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
532 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
533 .info = onyx_spdif_info,
534 .get = onyx_spdif_get,
535 .put = onyx_spdif_put,
536 };
537
538 /* our registers */
539
540 static u8 register_map[] = {
541 ONYX_REG_DAC_ATTEN_LEFT,
542 ONYX_REG_DAC_ATTEN_RIGHT,
543 ONYX_REG_CONTROL,
544 ONYX_REG_DAC_CONTROL,
545 ONYX_REG_DAC_DEEMPH,
546 ONYX_REG_DAC_FILTER,
547 ONYX_REG_DAC_OUTPHASE,
548 ONYX_REG_ADC_CONTROL,
549 ONYX_REG_ADC_HPF_BYPASS,
550 ONYX_REG_DIG_INFO1,
551 ONYX_REG_DIG_INFO2,
552 ONYX_REG_DIG_INFO3,
553 ONYX_REG_DIG_INFO4
554 };
555
556 static u8 initial_values[ARRAY_SIZE(register_map)] = {
557 0x80, 0x80, /* muted */
558 ONYX_MRST | ONYX_SRST, /* but handled specially! */
559 ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT,
560 0, /* no deemphasis */
561 ONYX_DAC_FILTER_ALWAYS,
562 ONYX_OUTPHASE_INVERTED,
563 (-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/
564 ONYX_ADC_HPF_ALWAYS,
565 (1<<2), /* pcm audio */
566 2, /* category: pcm coder */
567 0, /* sampling frequency 44.1 kHz, clock accuracy level II */
568 1 /* 24 bit depth */
569 };
570
571 /* reset registers of chip, either to initial or to previous values */
572 static int onyx_register_init(struct onyx *onyx)
573 {
574 int i;
575 u8 val;
576 u8 regs[sizeof(initial_values)];
577
578 if (!onyx->initialised) {
579 memcpy(regs, initial_values, sizeof(initial_values));
580 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val))
581 return -1;
582 val &= ~ONYX_SILICONVERSION;
583 val |= initial_values[3];
584 regs[3] = val;
585 } else {
586 for (i=0; i<sizeof(register_map); i++)
587 regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER];
588 }
589
590 for (i=0; i<sizeof(register_map); i++) {
591 if (onyx_write_register(onyx, register_map[i], regs[i]))
592 return -1;
593 }
594 onyx->initialised = 1;
595 return 0;
596 }
597
598 static struct transfer_info onyx_transfers[] = {
599 /* this is first so we can skip it if no input is present...
600 * No hardware exists with that, but it's here as an example
601 * of what to do :) */
602 {
603 /* analog input */
604 .formats = SNDRV_PCM_FMTBIT_S8 |
605 SNDRV_PCM_FMTBIT_S16_BE |
606 SNDRV_PCM_FMTBIT_S24_BE,
607 .rates = SNDRV_PCM_RATE_8000_96000,
608 .transfer_in = 1,
609 .must_be_clock_source = 0,
610 .tag = 0,
611 },
612 {
613 /* if analog and digital are currently off, anything should go,
614 * so this entry describes everything we can do... */
615 .formats = SNDRV_PCM_FMTBIT_S8 |
616 SNDRV_PCM_FMTBIT_S16_BE |
617 SNDRV_PCM_FMTBIT_S24_BE
618 #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
619 | SNDRV_PCM_FMTBIT_COMPRESSED_16BE
620 #endif
621 ,
622 .rates = SNDRV_PCM_RATE_8000_96000,
623 .tag = 0,
624 },
625 {
626 /* analog output */
627 .formats = SNDRV_PCM_FMTBIT_S8 |
628 SNDRV_PCM_FMTBIT_S16_BE |
629 SNDRV_PCM_FMTBIT_S24_BE,
630 .rates = SNDRV_PCM_RATE_8000_96000,
631 .transfer_in = 0,
632 .must_be_clock_source = 0,
633 .tag = 1,
634 },
635 {
636 /* digital pcm output, also possible for analog out */
637 .formats = SNDRV_PCM_FMTBIT_S8 |
638 SNDRV_PCM_FMTBIT_S16_BE |
639 SNDRV_PCM_FMTBIT_S24_BE,
640 .rates = SNDRV_PCM_RATE_32000 |
641 SNDRV_PCM_RATE_44100 |
642 SNDRV_PCM_RATE_48000,
643 .transfer_in = 0,
644 .must_be_clock_source = 0,
645 .tag = 2,
646 },
647 #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
648 /* Once alsa gets supports for this kind of thing we can add it... */
649 {
650 /* digital compressed output */
651 .formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE,
652 .rates = SNDRV_PCM_RATE_32000 |
653 SNDRV_PCM_RATE_44100 |
654 SNDRV_PCM_RATE_48000,
655 .tag = 2,
656 },
657 #endif
658 {}
659 };
660
661 static int onyx_usable(struct codec_info_item *cii,
662 struct transfer_info *ti,
663 struct transfer_info *out)
664 {
665 u8 v;
666 struct onyx *onyx = cii->codec_data;
667 int spdif_enabled, analog_enabled;
668
669 mutex_lock(&onyx->mutex);
670 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
671 spdif_enabled = !!(v & ONYX_SPDIF_ENABLE);
672 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
673 analog_enabled =
674 (v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT))
675 != (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT);
676 mutex_unlock(&onyx->mutex);
677
678 switch (ti->tag) {
679 case 0: return 1;
680 case 1: return analog_enabled;
681 case 2: return spdif_enabled;
682 }
683 return 1;
684 }
685
686 static int onyx_prepare(struct codec_info_item *cii,
687 struct bus_info *bi,
688 struct snd_pcm_substream *substream)
689 {
690 u8 v;
691 struct onyx *onyx = cii->codec_data;
692 int err = -EBUSY;
693
694 mutex_lock(&onyx->mutex);
695
696 #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
697 if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) {
698 /* mute and lock analog output */
699 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
700 if (onyx_write_register(onyx,
701 ONYX_REG_DAC_CONTROL,
702 v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT))
703 goto out_unlock;
704 onyx->analog_locked = 1;
705 err = 0;
706 goto out_unlock;
707 }
708 #endif
709 switch (substream->runtime->rate) {
710 case 32000:
711 case 44100:
712 case 48000:
713 /* these rates are ok for all outputs */
714 /* FIXME: program spdif channel control bits here so that
715 * userspace doesn't have to if it only plays pcm! */
716 err = 0;
717 goto out_unlock;
718 default:
719 /* got some rate that the digital output can't do,
720 * so disable and lock it */
721 onyx_read_register(cii->codec_data, ONYX_REG_DIG_INFO4, &v);
722 if (onyx_write_register(onyx,
723 ONYX_REG_DIG_INFO4,
724 v & ~ONYX_SPDIF_ENABLE))
725 goto out_unlock;
726 onyx->spdif_locked = 1;
727 err = 0;
728 goto out_unlock;
729 }
730
731 out_unlock:
732 mutex_unlock(&onyx->mutex);
733
734 return err;
735 }
736
737 static int onyx_open(struct codec_info_item *cii,
738 struct snd_pcm_substream *substream)
739 {
740 struct onyx *onyx = cii->codec_data;
741
742 mutex_lock(&onyx->mutex);
743 onyx->open_count++;
744 mutex_unlock(&onyx->mutex);
745
746 return 0;
747 }
748
749 static int onyx_close(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 if (!onyx->open_count)
757 onyx->spdif_locked = onyx->analog_locked = 0;
758 mutex_unlock(&onyx->mutex);
759
760 return 0;
761 }
762
763 static int onyx_switch_clock(struct codec_info_item *cii,
764 enum clock_switch what)
765 {
766 struct onyx *onyx = cii->codec_data;
767
768 mutex_lock(&onyx->mutex);
769 /* this *MUST* be more elaborate later... */
770 switch (what) {
771 case CLOCK_SWITCH_PREPARE_SLAVE:
772 onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio);
773 break;
774 case CLOCK_SWITCH_SLAVE:
775 onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio);
776 break;
777 default: /* silence warning */
778 break;
779 }
780 mutex_unlock(&onyx->mutex);
781
782 return 0;
783 }
784
785 #ifdef CONFIG_PM
786
787 static int onyx_suspend(struct codec_info_item *cii, pm_message_t state)
788 {
789 struct onyx *onyx = cii->codec_data;
790 u8 v;
791 int err = -ENXIO;
792
793 mutex_lock(&onyx->mutex);
794 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
795 goto out_unlock;
796 onyx_write_register(onyx, ONYX_REG_CONTROL, v | ONYX_ADPSV | ONYX_DAPSV);
797 /* Apple does a sleep here but the datasheet says to do it on resume */
798 err = 0;
799 out_unlock:
800 mutex_unlock(&onyx->mutex);
801
802 return err;
803 }
804
805 static int onyx_resume(struct codec_info_item *cii)
806 {
807 struct onyx *onyx = cii->codec_data;
808 u8 v;
809 int err = -ENXIO;
810
811 mutex_lock(&onyx->mutex);
812
813 /* reset codec */
814 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
815 msleep(1);
816 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
817 msleep(1);
818 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
819 msleep(1);
820
821 /* take codec out of suspend (if it still is after reset) */
822 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
823 goto out_unlock;
824 onyx_write_register(onyx, ONYX_REG_CONTROL, v & ~(ONYX_ADPSV | ONYX_DAPSV));
825 /* FIXME: should divide by sample rate, but 8k is the lowest we go */
826 msleep(2205000/8000);
827 /* reset all values */
828 onyx_register_init(onyx);
829 err = 0;
830 out_unlock:
831 mutex_unlock(&onyx->mutex);
832
833 return err;
834 }
835
836 #endif /* CONFIG_PM */
837
838 static struct codec_info onyx_codec_info = {
839 .transfers = onyx_transfers,
840 .sysclock_factor = 256,
841 .bus_factor = 64,
842 .owner = THIS_MODULE,
843 .usable = onyx_usable,
844 .prepare = onyx_prepare,
845 .open = onyx_open,
846 .close = onyx_close,
847 .switch_clock = onyx_switch_clock,
848 #ifdef CONFIG_PM
849 .suspend = onyx_suspend,
850 .resume = onyx_resume,
851 #endif
852 };
853
854 static int onyx_init_codec(struct aoa_codec *codec)
855 {
856 struct onyx *onyx = codec_to_onyx(codec);
857 struct snd_kcontrol *ctl;
858 struct codec_info *ci = &onyx_codec_info;
859 u8 v;
860 int err;
861
862 if (!onyx->codec.gpio || !onyx->codec.gpio->methods) {
863 printk(KERN_ERR PFX "gpios not assigned!!\n");
864 return -EINVAL;
865 }
866
867 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
868 msleep(1);
869 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
870 msleep(1);
871 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
872 msleep(1);
873
874 if (onyx_register_init(onyx)) {
875 printk(KERN_ERR PFX "failed to initialise onyx registers\n");
876 return -ENODEV;
877 }
878
879 if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, onyx, &ops)) {
880 printk(KERN_ERR PFX "failed to create onyx snd device!\n");
881 return -ENODEV;
882 }
883
884 /* nothing connected? what a joke! */
885 if ((onyx->codec.connected & 0xF) == 0)
886 return -ENOTCONN;
887
888 /* if no inputs are present... */
889 if ((onyx->codec.connected & 0xC) == 0) {
890 if (!onyx->codec_info)
891 onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
892 if (!onyx->codec_info)
893 return -ENOMEM;
894 ci = onyx->codec_info;
895 *ci = onyx_codec_info;
896 ci->transfers++;
897 }
898
899 /* if no outputs are present... */
900 if ((onyx->codec.connected & 3) == 0) {
901 if (!onyx->codec_info)
902 onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
903 if (!onyx->codec_info)
904 return -ENOMEM;
905 ci = onyx->codec_info;
906 /* this is fine as there have to be inputs
907 * if we end up in this part of the code */
908 *ci = onyx_codec_info;
909 ci->transfers[1].formats = 0;
910 }
911
912 if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev,
913 aoa_get_card(),
914 ci, onyx)) {
915 printk(KERN_ERR PFX "error creating onyx pcm\n");
916 return -ENODEV;
917 }
918 #define ADDCTL(n) \
919 do { \
920 ctl = snd_ctl_new1(&n, onyx); \
921 if (ctl) { \
922 ctl->id.device = \
923 onyx->codec.soundbus_dev->pcm->device; \
924 err = aoa_snd_ctl_add(ctl); \
925 if (err) \
926 goto error; \
927 } \
928 } while (0)
929
930 if (onyx->codec.soundbus_dev->pcm) {
931 /* give the user appropriate controls
932 * depending on what inputs are connected */
933 if ((onyx->codec.connected & 0xC) == 0xC)
934 ADDCTL(capture_source_control);
935 else if (onyx->codec.connected & 4)
936 onyx_set_capture_source(onyx, 0);
937 else
938 onyx_set_capture_source(onyx, 1);
939 if (onyx->codec.connected & 0xC)
940 ADDCTL(inputgain_control);
941
942 /* depending on what output is connected,
943 * give the user appropriate controls */
944 if (onyx->codec.connected & 1) {
945 ADDCTL(volume_control);
946 ADDCTL(mute_control);
947 ADDCTL(ovr1_control);
948 ADDCTL(flt0_control);
949 ADDCTL(hpf_control);
950 ADDCTL(dm12_control);
951 /* spdif control defaults to off */
952 }
953 if (onyx->codec.connected & 2) {
954 ADDCTL(onyx_spdif_mask);
955 ADDCTL(onyx_spdif_ctrl);
956 }
957 if ((onyx->codec.connected & 3) == 3)
958 ADDCTL(spdif_control);
959 /* if only S/PDIF is connected, enable it unconditionally */
960 if ((onyx->codec.connected & 3) == 2) {
961 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
962 v |= ONYX_SPDIF_ENABLE;
963 onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
964 }
965 }
966 #undef ADDCTL
967 printk(KERN_INFO PFX "attached to onyx codec via i2c\n");
968
969 return 0;
970 error:
971 onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
972 snd_device_free(aoa_get_card(), onyx);
973 return err;
974 }
975
976 static void onyx_exit_codec(struct aoa_codec *codec)
977 {
978 struct onyx *onyx = codec_to_onyx(codec);
979
980 if (!onyx->codec.soundbus_dev) {
981 printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n");
982 return;
983 }
984 onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
985 }
986
987 static struct i2c_driver onyx_driver;
988
989 static int onyx_create(struct i2c_adapter *adapter,
990 struct device_node *node,
991 int addr)
992 {
993 struct onyx *onyx;
994 u8 dummy;
995
996 onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL);
997
998 if (!onyx)
999 return -ENOMEM;
1000
1001 mutex_init(&onyx->mutex);
1002 onyx->i2c.driver = &onyx_driver;
1003 onyx->i2c.adapter = adapter;
1004 onyx->i2c.addr = addr & 0x7f;
1005 strlcpy(onyx->i2c.name, "onyx audio codec", I2C_NAME_SIZE);
1006
1007 if (i2c_attach_client(&onyx->i2c)) {
1008 printk(KERN_ERR PFX "failed to attach to i2c\n");
1009 goto fail;
1010 }
1011
1012 /* we try to read from register ONYX_REG_CONTROL
1013 * to check if the codec is present */
1014 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) {
1015 i2c_detach_client(&onyx->i2c);
1016 printk(KERN_ERR PFX "failed to read control register\n");
1017 goto fail;
1018 }
1019
1020 strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN);
1021 onyx->codec.owner = THIS_MODULE;
1022 onyx->codec.init = onyx_init_codec;
1023 onyx->codec.exit = onyx_exit_codec;
1024 onyx->codec.node = of_node_get(node);
1025
1026 if (aoa_codec_register(&onyx->codec)) {
1027 i2c_detach_client(&onyx->i2c);
1028 goto fail;
1029 }
1030 printk(KERN_DEBUG PFX "created and attached onyx instance\n");
1031 return 0;
1032 fail:
1033 kfree(onyx);
1034 return -EINVAL;
1035 }
1036
1037 static int onyx_i2c_attach(struct i2c_adapter *adapter)
1038 {
1039 struct device_node *busnode, *dev = NULL;
1040 struct pmac_i2c_bus *bus;
1041
1042 bus = pmac_i2c_adapter_to_bus(adapter);
1043 if (bus == NULL)
1044 return -ENODEV;
1045 busnode = pmac_i2c_get_bus_node(bus);
1046
1047 while ((dev = of_get_next_child(busnode, dev)) != NULL) {
1048 if (of_device_is_compatible(dev, "pcm3052")) {
1049 const u32 *addr;
1050 printk(KERN_DEBUG PFX "found pcm3052\n");
1051 addr = of_get_property(dev, "reg", NULL);
1052 if (!addr)
1053 return -ENODEV;
1054 return onyx_create(adapter, dev, (*addr)>>1);
1055 }
1056 }
1057
1058 /* if that didn't work, try desperate mode for older
1059 * machines that have stuff missing from the device tree */
1060
1061 if (!of_device_is_compatible(busnode, "k2-i2c"))
1062 return -ENODEV;
1063
1064 printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n");
1065 /* probe both possible addresses for the onyx chip */
1066 if (onyx_create(adapter, NULL, 0x46) == 0)
1067 return 0;
1068 return onyx_create(adapter, NULL, 0x47);
1069 }
1070
1071 static int onyx_i2c_detach(struct i2c_client *client)
1072 {
1073 struct onyx *onyx = container_of(client, struct onyx, i2c);
1074 int err;
1075
1076 if ((err = i2c_detach_client(client)))
1077 return err;
1078 aoa_codec_unregister(&onyx->codec);
1079 of_node_put(onyx->codec.node);
1080 if (onyx->codec_info)
1081 kfree(onyx->codec_info);
1082 kfree(onyx);
1083 return 0;
1084 }
1085
1086 static struct i2c_driver onyx_driver = {
1087 .driver = {
1088 .name = "aoa_codec_onyx",
1089 .owner = THIS_MODULE,
1090 },
1091 .attach_adapter = onyx_i2c_attach,
1092 .detach_client = onyx_i2c_detach,
1093 };
1094
1095 static int __init onyx_init(void)
1096 {
1097 return i2c_add_driver(&onyx_driver);
1098 }
1099
1100 static void __exit onyx_exit(void)
1101 {
1102 i2c_del_driver(&onyx_driver);
1103 }
1104
1105 module_init(onyx_init);
1106 module_exit(onyx_exit);
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