2 * C-Media CMI8788 driver - mixer code
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
7 * This driver is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License, version 2.
10 * This driver is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this driver; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #include <linux/mutex.h>
21 #include <sound/ac97_codec.h>
22 #include <sound/asoundef.h>
23 #include <sound/control.h>
24 #include <sound/tlv.h>
27 static int dac_volume_info(struct snd_kcontrol *ctl,
28 struct snd_ctl_elem_info *info)
30 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
32 info->value.integer.min = 0;
33 info->value.integer.max = 0xff;
37 static int dac_volume_get(struct snd_kcontrol *ctl,
38 struct snd_ctl_elem_value *value)
40 struct oxygen *chip = ctl->private_data;
43 mutex_lock(&chip->mutex);
44 for (i = 0; i < 8; ++i)
45 value->value.integer.value[i] = chip->dac_volume[i];
46 mutex_unlock(&chip->mutex);
50 static int dac_volume_put(struct snd_kcontrol *ctl,
51 struct snd_ctl_elem_value *value)
53 struct oxygen *chip = ctl->private_data;
58 mutex_lock(&chip->mutex);
59 for (i = 0; i < 8; ++i)
60 if (value->value.integer.value[i] != chip->dac_volume[i]) {
61 chip->dac_volume[i] = value->value.integer.value[i];
65 chip->model->update_dac_volume(chip);
66 mutex_unlock(&chip->mutex);
70 static int dac_mute_get(struct snd_kcontrol *ctl,
71 struct snd_ctl_elem_value *value)
73 struct oxygen *chip = ctl->private_data;
75 mutex_lock(&chip->mutex);
76 value->value.integer.value[0] = !chip->dac_mute;
77 mutex_unlock(&chip->mutex);
81 static int dac_mute_put(struct snd_kcontrol *ctl,
82 struct snd_ctl_elem_value *value)
84 struct oxygen *chip = ctl->private_data;
87 mutex_lock(&chip->mutex);
88 changed = !value->value.integer.value[0] != chip->dac_mute;
90 chip->dac_mute = !value->value.integer.value[0];
91 chip->model->update_dac_mute(chip);
93 mutex_unlock(&chip->mutex);
97 static int upmix_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
99 static const char *const names[3] = {
100 "Front", "Front+Surround", "Front+Surround+Back"
102 info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
104 info->value.enumerated.items = 3;
105 if (info->value.enumerated.item > 2)
106 info->value.enumerated.item = 2;
107 strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
111 static int upmix_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
113 struct oxygen *chip = ctl->private_data;
115 mutex_lock(&chip->mutex);
116 value->value.enumerated.item[0] = chip->dac_routing;
117 mutex_unlock(&chip->mutex);
121 void oxygen_update_dac_routing(struct oxygen *chip)
123 static const unsigned int reg_values[3] = {
124 0xe400, /* front <- 0, surround <- 1, center <- 2, back <- 3 */
125 0xe000, /* front <- 0, surround <- 0, center <- 2, back <- 3 */
126 0x2000 /* front <- 0, surround <- 0, center <- 2, back <- 0 */
129 unsigned int reg_value;
131 channels = oxygen_read8(chip, OXYGEN_PLAY_CHANNELS) &
132 OXYGEN_PLAY_CHANNELS_MASK;
133 if (channels == OXYGEN_PLAY_CHANNELS_2)
134 reg_value = reg_values[chip->dac_routing];
135 else if (channels == OXYGEN_PLAY_CHANNELS_8)
136 reg_value = 0x6c00; /* surround <- 3, back <- 1 */
139 oxygen_write16_masked(chip, OXYGEN_PLAY_ROUTING, reg_value, 0xff00);
142 static int upmix_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
144 struct oxygen *chip = ctl->private_data;
147 mutex_lock(&chip->mutex);
148 changed = value->value.enumerated.item[0] != chip->dac_routing;
150 chip->dac_routing = min(value->value.enumerated.item[0], 2u);
151 spin_lock_irq(&chip->reg_lock);
152 oxygen_update_dac_routing(chip);
153 spin_unlock_irq(&chip->reg_lock);
155 mutex_unlock(&chip->mutex);
159 static int spdif_switch_get(struct snd_kcontrol *ctl,
160 struct snd_ctl_elem_value *value)
162 struct oxygen *chip = ctl->private_data;
164 mutex_lock(&chip->mutex);
165 value->value.integer.value[0] = chip->spdif_playback_enable;
166 mutex_unlock(&chip->mutex);
170 static unsigned int oxygen_spdif_rate(unsigned int oxygen_rate)
172 switch (oxygen_rate) {
173 case OXYGEN_RATE_32000:
174 return IEC958_AES3_CON_FS_32000 << OXYGEN_SPDIF_CS_RATE_SHIFT;
175 case OXYGEN_RATE_44100:
176 return IEC958_AES3_CON_FS_44100 << OXYGEN_SPDIF_CS_RATE_SHIFT;
177 default: /* OXYGEN_RATE_48000 */
178 return IEC958_AES3_CON_FS_48000 << OXYGEN_SPDIF_CS_RATE_SHIFT;
179 case OXYGEN_RATE_64000:
180 return 0xb << OXYGEN_SPDIF_CS_RATE_SHIFT;
181 case OXYGEN_RATE_88200:
182 return 0x8 << OXYGEN_SPDIF_CS_RATE_SHIFT;
183 case OXYGEN_RATE_96000:
184 return 0xa << OXYGEN_SPDIF_CS_RATE_SHIFT;
185 case OXYGEN_RATE_176400:
186 return 0xc << OXYGEN_SPDIF_CS_RATE_SHIFT;
187 case OXYGEN_RATE_192000:
188 return 0xe << OXYGEN_SPDIF_CS_RATE_SHIFT;
192 void oxygen_update_spdif_source(struct oxygen *chip)
194 u32 old_control, new_control;
195 u16 old_routing, new_routing;
196 unsigned int oxygen_rate;
198 old_control = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL);
199 old_routing = oxygen_read16(chip, OXYGEN_PLAY_ROUTING);
200 if (chip->pcm_active & (1 << PCM_SPDIF)) {
201 new_control = old_control | OXYGEN_SPDIF_OUT_ENABLE;
202 new_routing = (old_routing & ~0x00e0) | 0x0000;
203 oxygen_rate = (old_control >> OXYGEN_SPDIF_OUT_RATE_SHIFT)
204 & OXYGEN_I2S_RATE_MASK;
205 /* S/PDIF rate was already set by the caller */
206 } else if ((chip->pcm_active & (1 << PCM_MULTICH)) &&
207 chip->spdif_playback_enable) {
208 new_routing = (old_routing & ~0x00e0) | 0x0020;
209 oxygen_rate = oxygen_read16(chip, OXYGEN_I2S_MULTICH_FORMAT)
210 & OXYGEN_I2S_RATE_MASK;
211 new_control = (old_control & ~OXYGEN_SPDIF_OUT_RATE_MASK) |
212 (oxygen_rate << OXYGEN_SPDIF_OUT_RATE_SHIFT) |
213 OXYGEN_SPDIF_OUT_ENABLE;
215 new_control = old_control & ~OXYGEN_SPDIF_OUT_ENABLE;
216 new_routing = old_routing;
217 oxygen_rate = OXYGEN_RATE_44100;
219 if (old_routing != new_routing) {
220 oxygen_write32(chip, OXYGEN_SPDIF_CONTROL,
221 new_control & ~OXYGEN_SPDIF_OUT_ENABLE);
222 oxygen_write16(chip, OXYGEN_PLAY_ROUTING, new_routing);
224 if (new_control & OXYGEN_SPDIF_OUT_ENABLE)
225 oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS,
226 oxygen_spdif_rate(oxygen_rate) |
227 ((chip->pcm_active & (1 << PCM_SPDIF)) ?
228 chip->spdif_pcm_bits : chip->spdif_bits));
229 oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, new_control);
232 static int spdif_switch_put(struct snd_kcontrol *ctl,
233 struct snd_ctl_elem_value *value)
235 struct oxygen *chip = ctl->private_data;
238 mutex_lock(&chip->mutex);
239 changed = value->value.integer.value[0] != chip->spdif_playback_enable;
241 chip->spdif_playback_enable = !!value->value.integer.value[0];
242 spin_lock_irq(&chip->reg_lock);
243 oxygen_update_spdif_source(chip);
244 spin_unlock_irq(&chip->reg_lock);
246 mutex_unlock(&chip->mutex);
250 static int spdif_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
252 info->type = SNDRV_CTL_ELEM_TYPE_IEC958;
257 static void oxygen_to_iec958(u32 bits, struct snd_ctl_elem_value *value)
259 value->value.iec958.status[0] =
260 bits & (OXYGEN_SPDIF_NONAUDIO | OXYGEN_SPDIF_C |
261 OXYGEN_SPDIF_PREEMPHASIS);
262 value->value.iec958.status[1] = /* category and original */
263 bits >> OXYGEN_SPDIF_CATEGORY_SHIFT;
266 static u32 iec958_to_oxygen(struct snd_ctl_elem_value *value)
270 bits = value->value.iec958.status[0] &
271 (OXYGEN_SPDIF_NONAUDIO | OXYGEN_SPDIF_C |
272 OXYGEN_SPDIF_PREEMPHASIS);
273 bits |= value->value.iec958.status[1] << OXYGEN_SPDIF_CATEGORY_SHIFT;
274 if (bits & OXYGEN_SPDIF_NONAUDIO)
275 bits |= OXYGEN_SPDIF_V;
279 static inline void write_spdif_bits(struct oxygen *chip, u32 bits)
281 oxygen_write32_masked(chip, OXYGEN_SPDIF_OUTPUT_BITS, bits,
282 OXYGEN_SPDIF_NONAUDIO |
284 OXYGEN_SPDIF_PREEMPHASIS |
285 OXYGEN_SPDIF_CATEGORY_MASK |
286 OXYGEN_SPDIF_ORIGINAL |
290 static int spdif_default_get(struct snd_kcontrol *ctl,
291 struct snd_ctl_elem_value *value)
293 struct oxygen *chip = ctl->private_data;
295 mutex_lock(&chip->mutex);
296 oxygen_to_iec958(chip->spdif_bits, value);
297 mutex_unlock(&chip->mutex);
301 static int spdif_default_put(struct snd_kcontrol *ctl,
302 struct snd_ctl_elem_value *value)
304 struct oxygen *chip = ctl->private_data;
308 new_bits = iec958_to_oxygen(value);
309 mutex_lock(&chip->mutex);
310 changed = new_bits != chip->spdif_bits;
312 chip->spdif_bits = new_bits;
313 if (!(chip->pcm_active & (1 << PCM_SPDIF)))
314 write_spdif_bits(chip, new_bits);
316 mutex_unlock(&chip->mutex);
320 static int spdif_mask_get(struct snd_kcontrol *ctl,
321 struct snd_ctl_elem_value *value)
323 value->value.iec958.status[0] = IEC958_AES0_NONAUDIO |
324 IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS;
325 value->value.iec958.status[1] =
326 IEC958_AES1_CON_CATEGORY | IEC958_AES1_CON_ORIGINAL;
330 static int spdif_pcm_get(struct snd_kcontrol *ctl,
331 struct snd_ctl_elem_value *value)
333 struct oxygen *chip = ctl->private_data;
335 mutex_lock(&chip->mutex);
336 oxygen_to_iec958(chip->spdif_pcm_bits, value);
337 mutex_unlock(&chip->mutex);
341 static int spdif_pcm_put(struct snd_kcontrol *ctl,
342 struct snd_ctl_elem_value *value)
344 struct oxygen *chip = ctl->private_data;
348 new_bits = iec958_to_oxygen(value);
349 mutex_lock(&chip->mutex);
350 changed = new_bits != chip->spdif_pcm_bits;
352 chip->spdif_pcm_bits = new_bits;
353 if (chip->pcm_active & (1 << PCM_SPDIF))
354 write_spdif_bits(chip, new_bits);
356 mutex_unlock(&chip->mutex);
360 static int spdif_input_mask_get(struct snd_kcontrol *ctl,
361 struct snd_ctl_elem_value *value)
363 value->value.iec958.status[0] = 0xff;
364 value->value.iec958.status[1] = 0xff;
365 value->value.iec958.status[2] = 0xff;
366 value->value.iec958.status[3] = 0xff;
370 static int spdif_input_default_get(struct snd_kcontrol *ctl,
371 struct snd_ctl_elem_value *value)
373 struct oxygen *chip = ctl->private_data;
376 bits = oxygen_read32(chip, OXYGEN_SPDIF_INPUT_BITS);
377 value->value.iec958.status[0] = bits;
378 value->value.iec958.status[1] = bits >> 8;
379 value->value.iec958.status[2] = bits >> 16;
380 value->value.iec958.status[3] = bits >> 24;
384 static int ac97_switch_get(struct snd_kcontrol *ctl,
385 struct snd_ctl_elem_value *value)
387 struct oxygen *chip = ctl->private_data;
388 unsigned int index = ctl->private_value & 0xff;
389 unsigned int bitnr = (ctl->private_value >> 8) & 0xff;
390 int invert = ctl->private_value & (1 << 16);
393 mutex_lock(&chip->mutex);
394 reg = oxygen_read_ac97(chip, 0, index);
395 mutex_unlock(&chip->mutex);
396 if (!(reg & (1 << bitnr)) ^ !invert)
397 value->value.integer.value[0] = 1;
399 value->value.integer.value[0] = 0;
403 static void ac97_mute_ctl(struct oxygen *chip, unsigned int control)
405 unsigned int index = chip->controls[control]->private_value & 0xff;
408 value = oxygen_read_ac97(chip, 0, index);
409 if (!(value & 0x8000)) {
410 oxygen_write_ac97(chip, 0, index, value | 0x8000);
411 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
412 &chip->controls[control]->id);
416 static int ac97_switch_put(struct snd_kcontrol *ctl,
417 struct snd_ctl_elem_value *value)
419 struct oxygen *chip = ctl->private_data;
420 unsigned int index = ctl->private_value & 0xff;
421 unsigned int bitnr = (ctl->private_value >> 8) & 0xff;
422 int invert = ctl->private_value & (1 << 16);
426 mutex_lock(&chip->mutex);
427 oldreg = oxygen_read_ac97(chip, 0, index);
429 if (!value->value.integer.value[0] ^ !invert)
430 newreg |= 1 << bitnr;
432 newreg &= ~(1 << bitnr);
433 change = newreg != oldreg;
435 oxygen_write_ac97(chip, 0, index, newreg);
436 if (index == AC97_LINE) {
437 oxygen_write_ac97_masked(chip, 0, 0x72,
438 !!(newreg & 0x8000), 0x0001);
439 if (!(newreg & 0x8000)) {
440 ac97_mute_ctl(chip, CONTROL_MIC_CAPTURE_SWITCH);
441 ac97_mute_ctl(chip, CONTROL_CD_CAPTURE_SWITCH);
442 ac97_mute_ctl(chip, CONTROL_AUX_CAPTURE_SWITCH);
444 } else if ((index == AC97_MIC || index == AC97_CD ||
445 index == AC97_VIDEO || index == AC97_AUX) &&
446 bitnr == 15 && !(newreg & 0x8000)) {
447 ac97_mute_ctl(chip, CONTROL_LINE_CAPTURE_SWITCH);
448 oxygen_write_ac97_masked(chip, 0, 0x72, 0x0001, 0x0001);
451 mutex_unlock(&chip->mutex);
455 static int ac97_volume_info(struct snd_kcontrol *ctl,
456 struct snd_ctl_elem_info *info)
458 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
460 info->value.integer.min = 0;
461 info->value.integer.max = 0x1f;
465 static int ac97_volume_get(struct snd_kcontrol *ctl,
466 struct snd_ctl_elem_value *value)
468 struct oxygen *chip = ctl->private_data;
469 unsigned int index = ctl->private_value;
472 mutex_lock(&chip->mutex);
473 reg = oxygen_read_ac97(chip, 0, index);
474 mutex_unlock(&chip->mutex);
475 value->value.integer.value[0] = 31 - (reg & 0x1f);
476 value->value.integer.value[1] = 31 - ((reg >> 8) & 0x1f);
480 static int ac97_volume_put(struct snd_kcontrol *ctl,
481 struct snd_ctl_elem_value *value)
483 struct oxygen *chip = ctl->private_data;
484 unsigned int index = ctl->private_value;
488 mutex_lock(&chip->mutex);
489 oldreg = oxygen_read_ac97(chip, 0, index);
491 newreg = (newreg & ~0x1f) |
492 (31 - (value->value.integer.value[0] & 0x1f));
493 newreg = (newreg & ~0x1f00) |
494 ((31 - (value->value.integer.value[0] & 0x1f)) << 8);
495 change = newreg != oldreg;
497 oxygen_write_ac97(chip, 0, index, newreg);
498 mutex_unlock(&chip->mutex);
502 #define AC97_SWITCH(xname, index, bitnr, invert) { \
503 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
505 .info = snd_ctl_boolean_mono_info, \
506 .get = ac97_switch_get, \
507 .put = ac97_switch_put, \
508 .private_value = ((invert) << 16) | ((bitnr) << 8) | (index), \
510 #define AC97_VOLUME(xname, index) { \
511 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
513 .info = ac97_volume_info, \
514 .get = ac97_volume_get, \
515 .put = ac97_volume_put, \
516 .tlv = { .p = ac97_db_scale, }, \
517 .private_value = (index), \
520 static DECLARE_TLV_DB_SCALE(ac97_db_scale, -3450, 150, 0);
522 static const struct snd_kcontrol_new controls[] = {
524 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
525 .name = "Master Playback Volume",
526 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
527 .info = dac_volume_info,
528 .get = dac_volume_get,
529 .put = dac_volume_put,
532 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
533 .name = "Master Playback Switch",
534 .info = snd_ctl_boolean_mono_info,
539 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
540 .name = "Stereo Upmixing",
546 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
547 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
548 .info = snd_ctl_boolean_mono_info,
549 .get = spdif_switch_get,
550 .put = spdif_switch_put,
553 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
555 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
557 .get = spdif_default_get,
558 .put = spdif_default_put,
561 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
563 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
564 .access = SNDRV_CTL_ELEM_ACCESS_READ,
566 .get = spdif_mask_get,
569 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
571 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
572 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
573 SNDRV_CTL_ELEM_ACCESS_INACTIVE,
575 .get = spdif_pcm_get,
576 .put = spdif_pcm_put,
579 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
581 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
582 .access = SNDRV_CTL_ELEM_ACCESS_READ,
584 .get = spdif_input_mask_get,
587 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
589 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
590 .access = SNDRV_CTL_ELEM_ACCESS_READ,
592 .get = spdif_input_default_get,
596 static const struct snd_kcontrol_new ac97_controls[] = {
597 AC97_VOLUME("Mic Capture Volume", AC97_MIC),
598 AC97_SWITCH("Mic Capture Switch", AC97_MIC, 15, 1),
599 AC97_SWITCH("Mic Boost (+20dB)", AC97_MIC, 6, 0),
600 AC97_SWITCH("Line Capture Switch", AC97_LINE, 15, 1),
601 AC97_VOLUME("CD Capture Volume", AC97_CD),
602 AC97_SWITCH("CD Capture Switch", AC97_CD, 15, 1),
603 AC97_VOLUME("Aux Capture Volume", AC97_AUX),
604 AC97_SWITCH("Aux Capture Switch", AC97_AUX, 15, 1),
607 static void oxygen_any_ctl_free(struct snd_kcontrol *ctl)
609 struct oxygen *chip = ctl->private_data;
612 /* I'm too lazy to write a function for each control :-) */
613 for (i = 0; i < ARRAY_SIZE(chip->controls); ++i)
614 chip->controls[i] = NULL;
617 static int add_controls(struct oxygen *chip,
618 const struct snd_kcontrol_new controls[],
621 static const char *const known_ctl_names[CONTROL_COUNT] = {
622 [CONTROL_SPDIF_PCM] =
623 SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
624 [CONTROL_SPDIF_INPUT_BITS] =
625 SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
626 [CONTROL_MIC_CAPTURE_SWITCH] = "Mic Capture Switch",
627 [CONTROL_LINE_CAPTURE_SWITCH] = "Line Capture Switch",
628 [CONTROL_CD_CAPTURE_SWITCH] = "CD Capture Switch",
629 [CONTROL_AUX_CAPTURE_SWITCH] = "Aux Capture Switch",
632 struct snd_kcontrol_new template;
633 struct snd_kcontrol *ctl;
636 for (i = 0; i < count; ++i) {
637 template = controls[i];
638 err = chip->model->control_filter(&template);
641 ctl = snd_ctl_new1(&controls[i], chip);
644 err = snd_ctl_add(chip->card, ctl);
647 for (j = 0; j < CONTROL_COUNT; ++j)
648 if (!strcmp(ctl->id.name, known_ctl_names[j])) {
649 chip->controls[j] = ctl;
650 ctl->private_free = oxygen_any_ctl_free;
656 int oxygen_mixer_init(struct oxygen *chip)
660 err = add_controls(chip, controls, ARRAY_SIZE(controls));
663 if (chip->has_ac97_0) {
664 err = add_controls(chip, ac97_controls,
665 ARRAY_SIZE(ac97_controls));
669 return chip->model->mixer_init ? chip->model->mixer_init(chip) : 0;