2
* Apple Onboard Audio driver for Onyx codec
4
* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
6
* GPL v2, can be found in COPYING.
9
* This is a driver for the pcm3052 codec chip (codenamed Onyx)
10
* that is present in newer Apple hardware (with digital output).
12
* The Onyx codec has the following connections (listed by the bit
13
* to be used in aoa_codec.connected):
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.
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...
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");
42
#include "../soundbus/soundbus.h"
45
#define PFX "snd-aoa-codec-onyx: "
48
/* cache registers 65 to 80, they are write-only! */
50
struct i2c_client *i2c;
51
struct aoa_codec codec;
57
struct codec_info *codec_info;
59
/* mutex serializes concurrent access to the device
64
#define codec_to_onyx(c) container_of(c, struct onyx, codec)
66
/* both return 0 if all ok, else on error */
67
static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value)
71
if (reg != ONYX_REG_CONTROL) {
72
*value = onyx->cache[reg-FIRSTREGISTER];
75
v = i2c_smbus_read_byte_data(onyx->i2c, reg);
79
onyx->cache[ONYX_REG_CONTROL-FIRSTREGISTER] = *value;
83
static int onyx_write_register(struct onyx *onyx, u8 reg, u8 value)
87
result = i2c_smbus_write_byte_data(onyx->i2c, reg, value);
89
onyx->cache[reg-FIRSTREGISTER] = value;
95
static int onyx_dev_register(struct snd_device *dev)
100
static struct snd_device_ops ops = {
101
.dev_register = onyx_dev_register,
104
/* this is necessary because most alsa mixer programs
105
* can't properly handle the negative range */
106
#define VOLUME_RANGE_SHIFT 128
108
static int onyx_snd_vol_info(struct snd_kcontrol *kcontrol,
109
struct snd_ctl_elem_info *uinfo)
111
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
113
uinfo->value.integer.min = -128 + VOLUME_RANGE_SHIFT;
114
uinfo->value.integer.max = -1 + VOLUME_RANGE_SHIFT;
118
static int onyx_snd_vol_get(struct snd_kcontrol *kcontrol,
119
struct snd_ctl_elem_value *ucontrol)
121
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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);
129
ucontrol->value.integer.value[0] = l + VOLUME_RANGE_SHIFT;
130
ucontrol->value.integer.value[1] = r + VOLUME_RANGE_SHIFT;
135
static int onyx_snd_vol_put(struct snd_kcontrol *kcontrol,
136
struct snd_ctl_elem_value *ucontrol)
138
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
141
if (ucontrol->value.integer.value[0] < -128 + VOLUME_RANGE_SHIFT ||
142
ucontrol->value.integer.value[0] > -1 + VOLUME_RANGE_SHIFT)
144
if (ucontrol->value.integer.value[1] < -128 + VOLUME_RANGE_SHIFT ||
145
ucontrol->value.integer.value[1] > -1 + VOLUME_RANGE_SHIFT)
148
mutex_lock(&onyx->mutex);
149
onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l);
150
onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r);
152
if (l + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[0] &&
153
r + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[1]) {
154
mutex_unlock(&onyx->mutex);
158
onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_LEFT,
159
ucontrol->value.integer.value[0]
160
- VOLUME_RANGE_SHIFT);
161
onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT,
162
ucontrol->value.integer.value[1]
163
- VOLUME_RANGE_SHIFT);
164
mutex_unlock(&onyx->mutex);
169
static struct snd_kcontrol_new volume_control = {
170
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
171
.name = "Master Playback Volume",
172
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
173
.info = onyx_snd_vol_info,
174
.get = onyx_snd_vol_get,
175
.put = onyx_snd_vol_put,
178
/* like above, this is necessary because a lot
179
* of alsa mixer programs don't handle ranges
180
* that don't start at 0 properly.
181
* even alsamixer is one of them... */
182
#define INPUTGAIN_RANGE_SHIFT (-3)
184
static int onyx_snd_inputgain_info(struct snd_kcontrol *kcontrol,
185
struct snd_ctl_elem_info *uinfo)
187
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
189
uinfo->value.integer.min = 3 + INPUTGAIN_RANGE_SHIFT;
190
uinfo->value.integer.max = 28 + INPUTGAIN_RANGE_SHIFT;
194
static int onyx_snd_inputgain_get(struct snd_kcontrol *kcontrol,
195
struct snd_ctl_elem_value *ucontrol)
197
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
200
mutex_lock(&onyx->mutex);
201
onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &ig);
202
mutex_unlock(&onyx->mutex);
204
ucontrol->value.integer.value[0] =
205
(ig & ONYX_ADC_PGA_GAIN_MASK) + INPUTGAIN_RANGE_SHIFT;
210
static int onyx_snd_inputgain_put(struct snd_kcontrol *kcontrol,
211
struct snd_ctl_elem_value *ucontrol)
213
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
216
if (ucontrol->value.integer.value[0] < 3 + INPUTGAIN_RANGE_SHIFT ||
217
ucontrol->value.integer.value[0] > 28 + INPUTGAIN_RANGE_SHIFT)
219
mutex_lock(&onyx->mutex);
220
onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
222
n &= ~ONYX_ADC_PGA_GAIN_MASK;
223
n |= (ucontrol->value.integer.value[0] - INPUTGAIN_RANGE_SHIFT)
224
& ONYX_ADC_PGA_GAIN_MASK;
225
onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, n);
226
mutex_unlock(&onyx->mutex);
231
static struct snd_kcontrol_new inputgain_control = {
232
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
233
.name = "Master Capture Volume",
234
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
235
.info = onyx_snd_inputgain_info,
236
.get = onyx_snd_inputgain_get,
237
.put = onyx_snd_inputgain_put,
240
static int onyx_snd_capture_source_info(struct snd_kcontrol *kcontrol,
241
struct snd_ctl_elem_info *uinfo)
243
static char *texts[] = { "Line-In", "Microphone" };
245
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
247
uinfo->value.enumerated.items = 2;
248
if (uinfo->value.enumerated.item > 1)
249
uinfo->value.enumerated.item = 1;
250
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
254
static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol,
255
struct snd_ctl_elem_value *ucontrol)
257
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
260
mutex_lock(&onyx->mutex);
261
onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
262
mutex_unlock(&onyx->mutex);
264
ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC);
269
static void onyx_set_capture_source(struct onyx *onyx, int mic)
273
mutex_lock(&onyx->mutex);
274
onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
275
v &= ~ONYX_ADC_INPUT_MIC;
277
v |= ONYX_ADC_INPUT_MIC;
278
onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, v);
279
mutex_unlock(&onyx->mutex);
282
static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol,
283
struct snd_ctl_elem_value *ucontrol)
285
if (ucontrol->value.enumerated.item[0] > 1)
287
onyx_set_capture_source(snd_kcontrol_chip(kcontrol),
288
ucontrol->value.enumerated.item[0]);
292
static struct snd_kcontrol_new capture_source_control = {
293
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
294
/* If we name this 'Input Source', it properly shows up in
295
* alsamixer as a selection, * but it's shown under the
296
* 'Playback' category.
297
* If I name it 'Capture Source', it shows up in strange
298
* ways (two bools of which one can be selected at a
299
* time) but at least it's shown in the 'Capture'
301
* I was told that this was due to backward compatibility,
302
* but I don't understand then why the mangling is *not*
303
* done when I name it "Input Source".....
305
.name = "Capture Source",
306
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
307
.info = onyx_snd_capture_source_info,
308
.get = onyx_snd_capture_source_get,
309
.put = onyx_snd_capture_source_put,
312
#define onyx_snd_mute_info snd_ctl_boolean_stereo_info
314
static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol,
315
struct snd_ctl_elem_value *ucontrol)
317
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
320
mutex_lock(&onyx->mutex);
321
onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c);
322
mutex_unlock(&onyx->mutex);
324
ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT);
325
ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT);
330
static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol,
331
struct snd_ctl_elem_value *ucontrol)
333
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
337
mutex_lock(&onyx->mutex);
338
if (onyx->analog_locked)
341
onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
343
c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT);
344
if (!ucontrol->value.integer.value[0])
346
if (!ucontrol->value.integer.value[1])
347
c |= ONYX_MUTE_RIGHT;
348
err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c);
351
mutex_unlock(&onyx->mutex);
353
return !err ? (v != c) : err;
356
static struct snd_kcontrol_new mute_control = {
357
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
358
.name = "Master Playback Switch",
359
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
360
.info = onyx_snd_mute_info,
361
.get = onyx_snd_mute_get,
362
.put = onyx_snd_mute_put,
366
#define onyx_snd_single_bit_info snd_ctl_boolean_mono_info
368
#define FLAG_POLARITY_INVERT 1
369
#define FLAG_SPDIFLOCK 2
371
static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol,
372
struct snd_ctl_elem_value *ucontrol)
374
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
376
long int pv = kcontrol->private_value;
377
u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
378
u8 address = (pv >> 8) & 0xff;
381
mutex_lock(&onyx->mutex);
382
onyx_read_register(onyx, address, &c);
383
mutex_unlock(&onyx->mutex);
385
ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
390
static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol,
391
struct snd_ctl_elem_value *ucontrol)
393
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
396
long int pv = kcontrol->private_value;
397
u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
398
u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK;
399
u8 address = (pv >> 8) & 0xff;
402
mutex_lock(&onyx->mutex);
403
if (spdiflock && onyx->spdif_locked) {
404
/* even if alsamixer doesn't care.. */
408
onyx_read_register(onyx, address, &v);
411
if (!!ucontrol->value.integer.value[0] ^ polarity)
413
err = onyx_write_register(onyx, address, c);
416
mutex_unlock(&onyx->mutex);
418
return !err ? (v != c) : err;
421
#define SINGLE_BIT(n, type, description, address, mask, flags) \
422
static struct snd_kcontrol_new n##_control = { \
423
.iface = SNDRV_CTL_ELEM_IFACE_##type, \
424
.name = description, \
425
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
426
.info = onyx_snd_single_bit_info, \
427
.get = onyx_snd_single_bit_get, \
428
.put = onyx_snd_single_bit_put, \
429
.private_value = (flags << 16) | (address << 8) | mask \
434
SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
441
ONYX_REG_DAC_CONTROL,
446
"Fast Digital Filter Rolloff",
449
FLAG_POLARITY_INVERT);
453
ONYX_REG_ADC_HPF_BYPASS,
455
FLAG_POLARITY_INVERT);
458
"Digital De-Emphasis",
463
static int onyx_spdif_info(struct snd_kcontrol *kcontrol,
464
struct snd_ctl_elem_info *uinfo)
466
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
471
static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol,
472
struct snd_ctl_elem_value *ucontrol)
474
/* datasheet page 30, all others are 0 */
475
ucontrol->value.iec958.status[0] = 0x3e;
476
ucontrol->value.iec958.status[1] = 0xff;
478
ucontrol->value.iec958.status[3] = 0x3f;
479
ucontrol->value.iec958.status[4] = 0x0f;
484
static struct snd_kcontrol_new onyx_spdif_mask = {
485
.access = SNDRV_CTL_ELEM_ACCESS_READ,
486
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
487
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
488
.info = onyx_spdif_info,
489
.get = onyx_spdif_mask_get,
492
static int onyx_spdif_get(struct snd_kcontrol *kcontrol,
493
struct snd_ctl_elem_value *ucontrol)
495
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
498
mutex_lock(&onyx->mutex);
499
onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
500
ucontrol->value.iec958.status[0] = v & 0x3e;
502
onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v);
503
ucontrol->value.iec958.status[1] = v;
505
onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
506
ucontrol->value.iec958.status[3] = v & 0x3f;
508
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
509
ucontrol->value.iec958.status[4] = v & 0x0f;
510
mutex_unlock(&onyx->mutex);
515
static int onyx_spdif_put(struct snd_kcontrol *kcontrol,
516
struct snd_ctl_elem_value *ucontrol)
518
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
521
mutex_lock(&onyx->mutex);
522
onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
523
v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e);
524
onyx_write_register(onyx, ONYX_REG_DIG_INFO1, v);
526
v = ucontrol->value.iec958.status[1];
527
onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v);
529
onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
530
v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f);
531
onyx_write_register(onyx, ONYX_REG_DIG_INFO3, v);
533
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
534
v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f);
535
onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
536
mutex_unlock(&onyx->mutex);
541
static struct snd_kcontrol_new onyx_spdif_ctrl = {
542
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
543
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
544
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
545
.info = onyx_spdif_info,
546
.get = onyx_spdif_get,
547
.put = onyx_spdif_put,
552
static u8 register_map[] = {
553
ONYX_REG_DAC_ATTEN_LEFT,
554
ONYX_REG_DAC_ATTEN_RIGHT,
556
ONYX_REG_DAC_CONTROL,
559
ONYX_REG_DAC_OUTPHASE,
560
ONYX_REG_ADC_CONTROL,
561
ONYX_REG_ADC_HPF_BYPASS,
568
static u8 initial_values[ARRAY_SIZE(register_map)] = {
569
0x80, 0x80, /* muted */
570
ONYX_MRST | ONYX_SRST, /* but handled specially! */
571
ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT,
572
0, /* no deemphasis */
573
ONYX_DAC_FILTER_ALWAYS,
574
ONYX_OUTPHASE_INVERTED,
575
(-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/
577
(1<<2), /* pcm audio */
578
2, /* category: pcm coder */
579
0, /* sampling frequency 44.1 kHz, clock accuracy level II */
583
/* reset registers of chip, either to initial or to previous values */
584
static int onyx_register_init(struct onyx *onyx)
588
u8 regs[sizeof(initial_values)];
590
if (!onyx->initialised) {
591
memcpy(regs, initial_values, sizeof(initial_values));
592
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val))
594
val &= ~ONYX_SILICONVERSION;
595
val |= initial_values[3];
598
for (i=0; i<sizeof(register_map); i++)
599
regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER];
602
for (i=0; i<sizeof(register_map); i++) {
603
if (onyx_write_register(onyx, register_map[i], regs[i]))
606
onyx->initialised = 1;
610
static struct transfer_info onyx_transfers[] = {
611
/* this is first so we can skip it if no input is present...
612
* No hardware exists with that, but it's here as an example
613
* of what to do :) */
616
.formats = SNDRV_PCM_FMTBIT_S8 |
617
SNDRV_PCM_FMTBIT_S16_BE |
618
SNDRV_PCM_FMTBIT_S24_BE,
619
.rates = SNDRV_PCM_RATE_8000_96000,
621
.must_be_clock_source = 0,
625
/* if analog and digital are currently off, anything should go,
626
* so this entry describes everything we can do... */
627
.formats = SNDRV_PCM_FMTBIT_S8 |
628
SNDRV_PCM_FMTBIT_S16_BE |
629
SNDRV_PCM_FMTBIT_S24_BE
630
#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
631
| SNDRV_PCM_FMTBIT_COMPRESSED_16BE
634
.rates = SNDRV_PCM_RATE_8000_96000,
639
.formats = SNDRV_PCM_FMTBIT_S8 |
640
SNDRV_PCM_FMTBIT_S16_BE |
641
SNDRV_PCM_FMTBIT_S24_BE,
642
.rates = SNDRV_PCM_RATE_8000_96000,
644
.must_be_clock_source = 0,
648
/* digital pcm output, also possible for analog out */
649
.formats = SNDRV_PCM_FMTBIT_S8 |
650
SNDRV_PCM_FMTBIT_S16_BE |
651
SNDRV_PCM_FMTBIT_S24_BE,
652
.rates = SNDRV_PCM_RATE_32000 |
653
SNDRV_PCM_RATE_44100 |
654
SNDRV_PCM_RATE_48000,
656
.must_be_clock_source = 0,
659
#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
660
/* Once alsa gets supports for this kind of thing we can add it... */
662
/* digital compressed output */
663
.formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE,
664
.rates = SNDRV_PCM_RATE_32000 |
665
SNDRV_PCM_RATE_44100 |
666
SNDRV_PCM_RATE_48000,
673
static int onyx_usable(struct codec_info_item *cii,
674
struct transfer_info *ti,
675
struct transfer_info *out)
678
struct onyx *onyx = cii->codec_data;
679
int spdif_enabled, analog_enabled;
681
mutex_lock(&onyx->mutex);
682
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
683
spdif_enabled = !!(v & ONYX_SPDIF_ENABLE);
684
onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
686
(v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT))
687
!= (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT);
688
mutex_unlock(&onyx->mutex);
692
case 1: return analog_enabled;
693
case 2: return spdif_enabled;
698
static int onyx_prepare(struct codec_info_item *cii,
700
struct snd_pcm_substream *substream)
703
struct onyx *onyx = cii->codec_data;
706
mutex_lock(&onyx->mutex);
708
#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
709
if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) {
710
/* mute and lock analog output */
711
onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
712
if (onyx_write_register(onyx,
713
ONYX_REG_DAC_CONTROL,
714
v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT))
716
onyx->analog_locked = 1;
721
switch (substream->runtime->rate) {
725
/* these rates are ok for all outputs */
726
/* FIXME: program spdif channel control bits here so that
727
* userspace doesn't have to if it only plays pcm! */
731
/* got some rate that the digital output can't do,
732
* so disable and lock it */
733
onyx_read_register(cii->codec_data, ONYX_REG_DIG_INFO4, &v);
734
if (onyx_write_register(onyx,
736
v & ~ONYX_SPDIF_ENABLE))
738
onyx->spdif_locked = 1;
744
mutex_unlock(&onyx->mutex);
749
static int onyx_open(struct codec_info_item *cii,
750
struct snd_pcm_substream *substream)
752
struct onyx *onyx = cii->codec_data;
754
mutex_lock(&onyx->mutex);
756
mutex_unlock(&onyx->mutex);
761
static int onyx_close(struct codec_info_item *cii,
762
struct snd_pcm_substream *substream)
764
struct onyx *onyx = cii->codec_data;
766
mutex_lock(&onyx->mutex);
768
if (!onyx->open_count)
769
onyx->spdif_locked = onyx->analog_locked = 0;
770
mutex_unlock(&onyx->mutex);
775
static int onyx_switch_clock(struct codec_info_item *cii,
776
enum clock_switch what)
778
struct onyx *onyx = cii->codec_data;
780
mutex_lock(&onyx->mutex);
781
/* this *MUST* be more elaborate later... */
783
case CLOCK_SWITCH_PREPARE_SLAVE:
784
onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio);
786
case CLOCK_SWITCH_SLAVE:
787
onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio);
789
default: /* silence warning */
792
mutex_unlock(&onyx->mutex);
799
static int onyx_suspend(struct codec_info_item *cii, pm_message_t state)
801
struct onyx *onyx = cii->codec_data;
805
mutex_lock(&onyx->mutex);
806
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
808
onyx_write_register(onyx, ONYX_REG_CONTROL, v | ONYX_ADPSV | ONYX_DAPSV);
809
/* Apple does a sleep here but the datasheet says to do it on resume */
812
mutex_unlock(&onyx->mutex);
817
static int onyx_resume(struct codec_info_item *cii)
819
struct onyx *onyx = cii->codec_data;
823
mutex_lock(&onyx->mutex);
826
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
828
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
830
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
833
/* take codec out of suspend (if it still is after reset) */
834
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
836
onyx_write_register(onyx, ONYX_REG_CONTROL, v & ~(ONYX_ADPSV | ONYX_DAPSV));
837
/* FIXME: should divide by sample rate, but 8k is the lowest we go */
838
msleep(2205000/8000);
839
/* reset all values */
840
onyx_register_init(onyx);
843
mutex_unlock(&onyx->mutex);
848
#endif /* CONFIG_PM */
850
static struct codec_info onyx_codec_info = {
851
.transfers = onyx_transfers,
852
.sysclock_factor = 256,
854
.owner = THIS_MODULE,
855
.usable = onyx_usable,
856
.prepare = onyx_prepare,
859
.switch_clock = onyx_switch_clock,
861
.suspend = onyx_suspend,
862
.resume = onyx_resume,
866
static int onyx_init_codec(struct aoa_codec *codec)
868
struct onyx *onyx = codec_to_onyx(codec);
869
struct snd_kcontrol *ctl;
870
struct codec_info *ci = &onyx_codec_info;
874
if (!onyx->codec.gpio || !onyx->codec.gpio->methods) {
875
printk(KERN_ERR PFX "gpios not assigned!!\n");
879
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
881
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
883
onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
886
if (onyx_register_init(onyx)) {
887
printk(KERN_ERR PFX "failed to initialise onyx registers\n");
891
if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, onyx, &ops)) {
892
printk(KERN_ERR PFX "failed to create onyx snd device!\n");
896
/* nothing connected? what a joke! */
897
if ((onyx->codec.connected & 0xF) == 0)
900
/* if no inputs are present... */
901
if ((onyx->codec.connected & 0xC) == 0) {
902
if (!onyx->codec_info)
903
onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
904
if (!onyx->codec_info)
906
ci = onyx->codec_info;
907
*ci = onyx_codec_info;
911
/* if no outputs are present... */
912
if ((onyx->codec.connected & 3) == 0) {
913
if (!onyx->codec_info)
914
onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
915
if (!onyx->codec_info)
917
ci = onyx->codec_info;
918
/* this is fine as there have to be inputs
919
* if we end up in this part of the code */
920
*ci = onyx_codec_info;
921
ci->transfers[1].formats = 0;
924
if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev,
927
printk(KERN_ERR PFX "error creating onyx pcm\n");
932
ctl = snd_ctl_new1(&n, onyx); \
935
onyx->codec.soundbus_dev->pcm->device; \
936
err = aoa_snd_ctl_add(ctl); \
942
if (onyx->codec.soundbus_dev->pcm) {
943
/* give the user appropriate controls
944
* depending on what inputs are connected */
945
if ((onyx->codec.connected & 0xC) == 0xC)
946
ADDCTL(capture_source_control);
947
else if (onyx->codec.connected & 4)
948
onyx_set_capture_source(onyx, 0);
950
onyx_set_capture_source(onyx, 1);
951
if (onyx->codec.connected & 0xC)
952
ADDCTL(inputgain_control);
954
/* depending on what output is connected,
955
* give the user appropriate controls */
956
if (onyx->codec.connected & 1) {
957
ADDCTL(volume_control);
958
ADDCTL(mute_control);
959
ADDCTL(ovr1_control);
960
ADDCTL(flt0_control);
962
ADDCTL(dm12_control);
963
/* spdif control defaults to off */
965
if (onyx->codec.connected & 2) {
966
ADDCTL(onyx_spdif_mask);
967
ADDCTL(onyx_spdif_ctrl);
969
if ((onyx->codec.connected & 3) == 3)
970
ADDCTL(spdif_control);
971
/* if only S/PDIF is connected, enable it unconditionally */
972
if ((onyx->codec.connected & 3) == 2) {
973
onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
974
v |= ONYX_SPDIF_ENABLE;
975
onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
979
printk(KERN_INFO PFX "attached to onyx codec via i2c\n");
983
onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
984
snd_device_free(aoa_get_card(), onyx);
988
static void onyx_exit_codec(struct aoa_codec *codec)
990
struct onyx *onyx = codec_to_onyx(codec);
992
if (!onyx->codec.soundbus_dev) {
993
printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n");
996
onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
999
static int onyx_create(struct i2c_adapter *adapter,
1000
struct device_node *node,
1003
struct i2c_board_info info;
1004
struct i2c_client *client;
1006
memset(&info, 0, sizeof(struct i2c_board_info));
1007
strlcpy(info.type, "aoa_codec_onyx", I2C_NAME_SIZE);
1009
info.platform_data = node;
1010
client = i2c_new_device(adapter, &info);
1015
* We know the driver is already loaded, so the device should be
1016
* already bound. If not it means binding failed, which suggests
1017
* the device doesn't really exist and should be deleted.
1018
* Ideally this would be replaced by better checks _before_
1019
* instantiating the device.
1021
if (!client->driver) {
1022
i2c_unregister_device(client);
1027
* Let i2c-core delete that device on driver removal.
1028
* This is safe because i2c-core holds the core_lock mutex for us.
1030
list_add_tail(&client->detected, &client->driver->clients);
1034
static int onyx_i2c_probe(struct i2c_client *client,
1035
const struct i2c_device_id *id)
1037
struct device_node *node = client->dev.platform_data;
1041
onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL);
1046
mutex_init(&onyx->mutex);
1048
i2c_set_clientdata(client, onyx);
1050
/* we try to read from register ONYX_REG_CONTROL
1051
* to check if the codec is present */
1052
if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) {
1053
printk(KERN_ERR PFX "failed to read control register\n");
1057
strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN);
1058
onyx->codec.owner = THIS_MODULE;
1059
onyx->codec.init = onyx_init_codec;
1060
onyx->codec.exit = onyx_exit_codec;
1061
onyx->codec.node = of_node_get(node);
1063
if (aoa_codec_register(&onyx->codec)) {
1066
printk(KERN_DEBUG PFX "created and attached onyx instance\n");
1069
i2c_set_clientdata(client, NULL);
1074
static int onyx_i2c_attach(struct i2c_adapter *adapter)
1076
struct device_node *busnode, *dev = NULL;
1077
struct pmac_i2c_bus *bus;
1079
bus = pmac_i2c_adapter_to_bus(adapter);
1082
busnode = pmac_i2c_get_bus_node(bus);
1084
while ((dev = of_get_next_child(busnode, dev)) != NULL) {
1085
if (of_device_is_compatible(dev, "pcm3052")) {
1087
printk(KERN_DEBUG PFX "found pcm3052\n");
1088
addr = of_get_property(dev, "reg", NULL);
1091
return onyx_create(adapter, dev, (*addr)>>1);
1095
/* if that didn't work, try desperate mode for older
1096
* machines that have stuff missing from the device tree */
1098
if (!of_device_is_compatible(busnode, "k2-i2c"))
1101
printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n");
1102
/* probe both possible addresses for the onyx chip */
1103
if (onyx_create(adapter, NULL, 0x46) == 0)
1105
return onyx_create(adapter, NULL, 0x47);
1108
static int onyx_i2c_remove(struct i2c_client *client)
1110
struct onyx *onyx = i2c_get_clientdata(client);
1112
aoa_codec_unregister(&onyx->codec);
1113
of_node_put(onyx->codec.node);
1114
if (onyx->codec_info)
1115
kfree(onyx->codec_info);
1116
i2c_set_clientdata(client, onyx);
1121
static const struct i2c_device_id onyx_i2c_id[] = {
1122
{ "aoa_codec_onyx", 0 },
1126
static struct i2c_driver onyx_driver = {
1128
.name = "aoa_codec_onyx",
1129
.owner = THIS_MODULE,
1131
.attach_adapter = onyx_i2c_attach,
1132
.probe = onyx_i2c_probe,
1133
.remove = onyx_i2c_remove,
1134
.id_table = onyx_i2c_id,
1137
static int __init onyx_init(void)
1139
return i2c_add_driver(&onyx_driver);
1142
static void __exit onyx_exit(void)
1144
i2c_del_driver(&onyx_driver);
1147
module_init(onyx_init);
1148
module_exit(onyx_exit);