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 #include <linux/slab.h>
37 MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
38 MODULE_LICENSE("GPL");
39 MODULE_DESCRIPTION("pcm3052 (onyx) codec driver for snd-aoa");
43 #include "../soundbus/soundbus.h"
46 #define PFX "snd-aoa-codec-onyx: "
49 /* cache registers 65 to 80, they are write-only! */
51 struct i2c_client *i2c;
52 struct aoa_codec codec;
58 struct codec_info *codec_info;
60 /* mutex serializes concurrent access to the device
65 #define codec_to_onyx(c) container_of(c, struct onyx, codec)
67 /* both return 0 if all ok, else on error */
68 static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value)
72 if (reg != ONYX_REG_CONTROL) {
73 *value = onyx->cache[reg-FIRSTREGISTER];
76 v = i2c_smbus_read_byte_data(onyx->i2c, reg);
80 onyx->cache[ONYX_REG_CONTROL-FIRSTREGISTER] = *value;
84 static int onyx_write_register(struct onyx *onyx, u8 reg, u8 value)
88 result = i2c_smbus_write_byte_data(onyx->i2c, reg, value);
90 onyx->cache[reg-FIRSTREGISTER] = value;
96 static int onyx_dev_register(struct snd_device *dev)
101 static struct snd_device_ops ops = {
102 .dev_register = onyx_dev_register,
105 /* this is necessary because most alsa mixer programs
106 * can't properly handle the negative range */
107 #define VOLUME_RANGE_SHIFT 128
109 static int onyx_snd_vol_info(struct snd_kcontrol *kcontrol,
110 struct snd_ctl_elem_info *uinfo)
112 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
114 uinfo->value.integer.min = -128 + VOLUME_RANGE_SHIFT;
115 uinfo->value.integer.max = -1 + VOLUME_RANGE_SHIFT;
119 static int onyx_snd_vol_get(struct snd_kcontrol *kcontrol,
120 struct snd_ctl_elem_value *ucontrol)
122 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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);
130 ucontrol->value.integer.value[0] = l + VOLUME_RANGE_SHIFT;
131 ucontrol->value.integer.value[1] = r + VOLUME_RANGE_SHIFT;
136 static int onyx_snd_vol_put(struct snd_kcontrol *kcontrol,
137 struct snd_ctl_elem_value *ucontrol)
139 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
142 if (ucontrol->value.integer.value[0] < -128 + VOLUME_RANGE_SHIFT ||
143 ucontrol->value.integer.value[0] > -1 + VOLUME_RANGE_SHIFT)
145 if (ucontrol->value.integer.value[1] < -128 + VOLUME_RANGE_SHIFT ||
146 ucontrol->value.integer.value[1] > -1 + VOLUME_RANGE_SHIFT)
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);
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);
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);
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,
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)
185 static int onyx_snd_inputgain_info(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_info *uinfo)
188 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
190 uinfo->value.integer.min = 3 + INPUTGAIN_RANGE_SHIFT;
191 uinfo->value.integer.max = 28 + INPUTGAIN_RANGE_SHIFT;
195 static int onyx_snd_inputgain_get(struct snd_kcontrol *kcontrol,
196 struct snd_ctl_elem_value *ucontrol)
198 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
201 mutex_lock(&onyx->mutex);
202 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &ig);
203 mutex_unlock(&onyx->mutex);
205 ucontrol->value.integer.value[0] =
206 (ig & ONYX_ADC_PGA_GAIN_MASK) + INPUTGAIN_RANGE_SHIFT;
211 static int onyx_snd_inputgain_put(struct snd_kcontrol *kcontrol,
212 struct snd_ctl_elem_value *ucontrol)
214 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
217 if (ucontrol->value.integer.value[0] < 3 + INPUTGAIN_RANGE_SHIFT ||
218 ucontrol->value.integer.value[0] > 28 + INPUTGAIN_RANGE_SHIFT)
220 mutex_lock(&onyx->mutex);
221 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &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);
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,
241 static int onyx_snd_capture_source_info(struct snd_kcontrol *kcontrol,
242 struct snd_ctl_elem_info *uinfo)
244 static char *texts[] = { "Line-In", "Microphone" };
246 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
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]);
255 static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol,
256 struct snd_ctl_elem_value *ucontrol)
258 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
261 mutex_lock(&onyx->mutex);
262 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
263 mutex_unlock(&onyx->mutex);
265 ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC);
270 static void onyx_set_capture_source(struct onyx *onyx, int mic)
274 mutex_lock(&onyx->mutex);
275 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
276 v &= ~ONYX_ADC_INPUT_MIC;
278 v |= ONYX_ADC_INPUT_MIC;
279 onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, v);
280 mutex_unlock(&onyx->mutex);
283 static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol,
284 struct snd_ctl_elem_value *ucontrol)
286 if (ucontrol->value.enumerated.item[0] > 1)
288 onyx_set_capture_source(snd_kcontrol_chip(kcontrol),
289 ucontrol->value.enumerated.item[0]);
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
296 * alsamixer as a selection, * but it's shown under the
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'
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".....
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,
313 #define onyx_snd_mute_info snd_ctl_boolean_stereo_info
315 static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol,
316 struct snd_ctl_elem_value *ucontrol)
318 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
321 mutex_lock(&onyx->mutex);
322 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c);
323 mutex_unlock(&onyx->mutex);
325 ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT);
326 ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT);
331 static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol,
332 struct snd_ctl_elem_value *ucontrol)
334 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
338 mutex_lock(&onyx->mutex);
339 if (onyx->analog_locked)
342 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
344 c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT);
345 if (!ucontrol->value.integer.value[0])
347 if (!ucontrol->value.integer.value[1])
348 c |= ONYX_MUTE_RIGHT;
349 err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c);
352 mutex_unlock(&onyx->mutex);
354 return !err ? (v != c) : err;
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,
367 #define onyx_snd_single_bit_info snd_ctl_boolean_mono_info
369 #define FLAG_POLARITY_INVERT 1
370 #define FLAG_SPDIFLOCK 2
372 static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol,
373 struct snd_ctl_elem_value *ucontrol)
375 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
377 long int pv = kcontrol->private_value;
378 u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
379 u8 address = (pv >> 8) & 0xff;
382 mutex_lock(&onyx->mutex);
383 onyx_read_register(onyx, address, &c);
384 mutex_unlock(&onyx->mutex);
386 ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
391 static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol,
392 struct snd_ctl_elem_value *ucontrol)
394 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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;
403 mutex_lock(&onyx->mutex);
404 if (spdiflock && onyx->spdif_locked) {
405 /* even if alsamixer doesn't care.. */
409 onyx_read_register(onyx, address, &v);
412 if (!!ucontrol->value.integer.value[0] ^ polarity)
414 err = onyx_write_register(onyx, address, c);
417 mutex_unlock(&onyx->mutex);
419 return !err ? (v != c) : err;
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 \
435 SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
442 ONYX_REG_DAC_CONTROL,
447 "Fast Digital Filter Rolloff",
450 FLAG_POLARITY_INVERT);
454 ONYX_REG_ADC_HPF_BYPASS,
456 FLAG_POLARITY_INVERT);
459 "Digital De-Emphasis",
464 static int onyx_spdif_info(struct snd_kcontrol *kcontrol,
465 struct snd_ctl_elem_info *uinfo)
467 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
472 static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol,
473 struct snd_ctl_elem_value *ucontrol)
475 /* datasheet page 30, all others are 0 */
476 ucontrol->value.iec958.status[0] = 0x3e;
477 ucontrol->value.iec958.status[1] = 0xff;
479 ucontrol->value.iec958.status[3] = 0x3f;
480 ucontrol->value.iec958.status[4] = 0x0f;
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,
493 static int onyx_spdif_get(struct snd_kcontrol *kcontrol,
494 struct snd_ctl_elem_value *ucontrol)
496 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
499 mutex_lock(&onyx->mutex);
500 onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
501 ucontrol->value.iec958.status[0] = v & 0x3e;
503 onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v);
504 ucontrol->value.iec958.status[1] = v;
506 onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
507 ucontrol->value.iec958.status[3] = v & 0x3f;
509 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
510 ucontrol->value.iec958.status[4] = v & 0x0f;
511 mutex_unlock(&onyx->mutex);
516 static int onyx_spdif_put(struct snd_kcontrol *kcontrol,
517 struct snd_ctl_elem_value *ucontrol)
519 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
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);
527 v = ucontrol->value.iec958.status[1];
528 onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v);
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);
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);
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,
553 static u8 register_map[] = {
554 ONYX_REG_DAC_ATTEN_LEFT,
555 ONYX_REG_DAC_ATTEN_RIGHT,
557 ONYX_REG_DAC_CONTROL,
560 ONYX_REG_DAC_OUTPHASE,
561 ONYX_REG_ADC_CONTROL,
562 ONYX_REG_ADC_HPF_BYPASS,
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*/
578 (1<<2), /* pcm audio */
579 2, /* category: pcm coder */
580 0, /* sampling frequency 44.1 kHz, clock accuracy level II */
584 /* reset registers of chip, either to initial or to previous values */
585 static int onyx_register_init(struct onyx *onyx)
589 u8 regs[sizeof(initial_values)];
591 if (!onyx->initialised) {
592 memcpy(regs, initial_values, sizeof(initial_values));
593 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val))
595 val &= ~ONYX_SILICONVERSION;
596 val |= initial_values[3];
599 for (i=0; i<sizeof(register_map); i++)
600 regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER];
603 for (i=0; i<sizeof(register_map); i++) {
604 if (onyx_write_register(onyx, register_map[i], regs[i]))
607 onyx->initialised = 1;
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 :) */
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,
622 .must_be_clock_source = 0,
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
635 .rates = SNDRV_PCM_RATE_8000_96000,
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,
645 .must_be_clock_source = 0,
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,
657 .must_be_clock_source = 0,
660 #ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
661 /* Once alsa gets supports for this kind of thing we can add it... */
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,
674 static int onyx_usable(struct codec_info_item *cii,
675 struct transfer_info *ti,
676 struct transfer_info *out)
679 struct onyx *onyx = cii->codec_data;
680 int spdif_enabled, analog_enabled;
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);
687 (v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT))
688 != (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT);
689 mutex_unlock(&onyx->mutex);
693 case 1: return analog_enabled;
694 case 2: return spdif_enabled;
699 static int onyx_prepare(struct codec_info_item *cii,
701 struct snd_pcm_substream *substream)
704 struct onyx *onyx = cii->codec_data;
707 mutex_lock(&onyx->mutex);
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);
713 if (onyx_write_register(onyx,
714 ONYX_REG_DAC_CONTROL,
715 v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT))
717 onyx->analog_locked = 1;
722 switch (substream->runtime->rate) {
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! */
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,
737 v & ~ONYX_SPDIF_ENABLE))
739 onyx->spdif_locked = 1;
745 mutex_unlock(&onyx->mutex);
750 static int onyx_open(struct codec_info_item *cii,
751 struct snd_pcm_substream *substream)
753 struct onyx *onyx = cii->codec_data;
755 mutex_lock(&onyx->mutex);
757 mutex_unlock(&onyx->mutex);
762 static int onyx_close(struct codec_info_item *cii,
763 struct snd_pcm_substream *substream)
765 struct onyx *onyx = cii->codec_data;
767 mutex_lock(&onyx->mutex);
769 if (!onyx->open_count)
770 onyx->spdif_locked = onyx->analog_locked = 0;
771 mutex_unlock(&onyx->mutex);
776 static int onyx_switch_clock(struct codec_info_item *cii,
777 enum clock_switch what)
779 struct onyx *onyx = cii->codec_data;
781 mutex_lock(&onyx->mutex);
782 /* this *MUST* be more elaborate later... */
784 case CLOCK_SWITCH_PREPARE_SLAVE:
785 onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio);
787 case CLOCK_SWITCH_SLAVE:
788 onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio);
790 default: /* silence warning */
793 mutex_unlock(&onyx->mutex);
800 static int onyx_suspend(struct codec_info_item *cii, pm_message_t state)
802 struct onyx *onyx = cii->codec_data;
806 mutex_lock(&onyx->mutex);
807 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
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 */
813 mutex_unlock(&onyx->mutex);
818 static int onyx_resume(struct codec_info_item *cii)
820 struct onyx *onyx = cii->codec_data;
824 mutex_lock(&onyx->mutex);
827 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
829 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
831 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
834 /* take codec out of suspend (if it still is after reset) */
835 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
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);
844 mutex_unlock(&onyx->mutex);
849 #endif /* CONFIG_PM */
851 static struct codec_info onyx_codec_info = {
852 .transfers = onyx_transfers,
853 .sysclock_factor = 256,
855 .owner = THIS_MODULE,
856 .usable = onyx_usable,
857 .prepare = onyx_prepare,
860 .switch_clock = onyx_switch_clock,
862 .suspend = onyx_suspend,
863 .resume = onyx_resume,
867 static int onyx_init_codec(struct aoa_codec *codec)
869 struct onyx *onyx = codec_to_onyx(codec);
870 struct snd_kcontrol *ctl;
871 struct codec_info *ci = &onyx_codec_info;
875 if (!onyx->codec.gpio || !onyx->codec.gpio->methods) {
876 printk(KERN_ERR PFX "gpios not assigned!!\n");
880 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
882 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
884 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
887 if (onyx_register_init(onyx)) {
888 printk(KERN_ERR PFX "failed to initialise onyx registers\n");
892 if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, onyx, &ops)) {
893 printk(KERN_ERR PFX "failed to create onyx snd device!\n");
897 /* nothing connected? what a joke! */
898 if ((onyx->codec.connected & 0xF) == 0)
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)
907 ci = onyx->codec_info;
908 *ci = onyx_codec_info;
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)
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;
925 if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev,
928 printk(KERN_ERR PFX "error creating onyx pcm\n");
933 ctl = snd_ctl_new1(&n, onyx); \
936 onyx->codec.soundbus_dev->pcm->device; \
937 err = aoa_snd_ctl_add(ctl); \
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);
951 onyx_set_capture_source(onyx, 1);
952 if (onyx->codec.connected & 0xC)
953 ADDCTL(inputgain_control);
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);
963 ADDCTL(dm12_control);
964 /* spdif control defaults to off */
966 if (onyx->codec.connected & 2) {
967 ADDCTL(onyx_spdif_mask);
968 ADDCTL(onyx_spdif_ctrl);
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);
980 printk(KERN_INFO PFX "attached to onyx codec via i2c\n");
984 onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
985 snd_device_free(aoa_get_card(), onyx);
989 static void onyx_exit_codec(struct aoa_codec *codec)
991 struct onyx *onyx = codec_to_onyx(codec);
993 if (!onyx->codec.soundbus_dev) {
994 printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n");
997 onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
1000 static int onyx_i2c_probe(struct i2c_client *client,
1001 const struct i2c_device_id *id)
1003 struct device_node *node = client->dev.of_node;
1007 onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL);
1012 mutex_init(&onyx->mutex);
1014 i2c_set_clientdata(client, onyx);
1016 /* we try to read from register ONYX_REG_CONTROL
1017 * to check if the codec is present */
1018 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) {
1019 printk(KERN_ERR PFX "failed to read control register\n");
1023 strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN);
1024 onyx->codec.owner = THIS_MODULE;
1025 onyx->codec.init = onyx_init_codec;
1026 onyx->codec.exit = onyx_exit_codec;
1027 onyx->codec.node = of_node_get(node);
1029 if (aoa_codec_register(&onyx->codec)) {
1032 printk(KERN_DEBUG PFX "created and attached onyx instance\n");
1039 static int onyx_i2c_remove(struct i2c_client *client)
1041 struct onyx *onyx = i2c_get_clientdata(client);
1043 aoa_codec_unregister(&onyx->codec);
1044 of_node_put(onyx->codec.node);
1045 kfree(onyx->codec_info);
1050 static const struct i2c_device_id onyx_i2c_id[] = {
1051 { "MAC,pcm3052", 0 },
1054 MODULE_DEVICE_TABLE(i2c,onyx_i2c_id);
1056 static struct i2c_driver onyx_driver = {
1058 .name = "aoa_codec_onyx",
1059 .owner = THIS_MODULE,
1061 .probe = onyx_i2c_probe,
1062 .remove = onyx_i2c_remove,
1063 .id_table = onyx_i2c_id,
1066 module_i2c_driver(onyx_driver);