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 struct oxygen *chip = ctl->private_data;
32 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
34 info->value.integer.min = chip->model->dac_minimum_volume;
35 info->value.integer.max = 0xff;
39 static int dac_volume_get(struct snd_kcontrol *ctl,
40 struct snd_ctl_elem_value *value)
42 struct oxygen *chip = ctl->private_data;
45 mutex_lock(&chip->mutex);
46 for (i = 0; i < 8; ++i)
47 value->value.integer.value[i] = chip->dac_volume[i];
48 mutex_unlock(&chip->mutex);
52 static int dac_volume_put(struct snd_kcontrol *ctl,
53 struct snd_ctl_elem_value *value)
55 struct oxygen *chip = ctl->private_data;
60 mutex_lock(&chip->mutex);
61 for (i = 0; i < 8; ++i)
62 if (value->value.integer.value[i] != chip->dac_volume[i]) {
63 chip->dac_volume[i] = value->value.integer.value[i];
67 chip->model->update_dac_volume(chip);
68 mutex_unlock(&chip->mutex);
72 static int dac_mute_get(struct snd_kcontrol *ctl,
73 struct snd_ctl_elem_value *value)
75 struct oxygen *chip = ctl->private_data;
77 mutex_lock(&chip->mutex);
78 value->value.integer.value[0] = !chip->dac_mute;
79 mutex_unlock(&chip->mutex);
83 static int dac_mute_put(struct snd_kcontrol *ctl,
84 struct snd_ctl_elem_value *value)
86 struct oxygen *chip = ctl->private_data;
89 mutex_lock(&chip->mutex);
90 changed = !value->value.integer.value[0] != chip->dac_mute;
92 chip->dac_mute = !value->value.integer.value[0];
93 chip->model->update_dac_mute(chip);
95 mutex_unlock(&chip->mutex);
99 static int upmix_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
101 static const char *const names[3] = {
102 "Front", "Front+Rear", "Front+Rear+Side"
104 info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
106 info->value.enumerated.items = 3;
107 if (info->value.enumerated.item > 2)
108 info->value.enumerated.item = 2;
109 strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
113 static int upmix_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
115 struct oxygen *chip = ctl->private_data;
117 mutex_lock(&chip->mutex);
118 value->value.enumerated.item[0] = chip->dac_routing;
119 mutex_unlock(&chip->mutex);
123 void oxygen_update_dac_routing(struct oxygen *chip)
126 * hardware channel order: front, side, center/lfe, rear
127 * ALSA channel order: front, rear, center/lfe, side
129 static const unsigned int reg_values[3] = {
130 0x6c00, 0x2c00, 0x2000
132 unsigned int reg_value;
134 if ((oxygen_read8(chip, OXYGEN_PLAY_CHANNELS) &
135 OXYGEN_PLAY_CHANNELS_MASK) == OXYGEN_PLAY_CHANNELS_2)
136 reg_value = reg_values[chip->dac_routing];
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 int ac97_switch_put(struct snd_kcontrol *ctl,
404 struct snd_ctl_elem_value *value)
406 struct oxygen *chip = ctl->private_data;
407 unsigned int index = ctl->private_value & 0xff;
408 unsigned int bitnr = (ctl->private_value >> 8) & 0xff;
409 int invert = ctl->private_value & (1 << 16);
413 mutex_lock(&chip->mutex);
414 oldreg = oxygen_read_ac97(chip, 0, index);
416 if (!value->value.integer.value[0] ^ !invert)
417 newreg |= 1 << bitnr;
419 newreg &= ~(1 << bitnr);
420 change = newreg != oldreg;
422 oxygen_write_ac97(chip, 0, index, newreg);
423 if (index == AC97_LINE)
424 oxygen_write_ac97_masked(chip, 0, 0x72,
425 !!(newreg & 0x8000), 0x0001);
427 mutex_unlock(&chip->mutex);
431 static int ac97_volume_info(struct snd_kcontrol *ctl,
432 struct snd_ctl_elem_info *info)
434 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
436 info->value.integer.min = 0;
437 info->value.integer.max = 0x1f;
441 static int ac97_volume_get(struct snd_kcontrol *ctl,
442 struct snd_ctl_elem_value *value)
444 struct oxygen *chip = ctl->private_data;
445 unsigned int index = ctl->private_value;
448 mutex_lock(&chip->mutex);
449 reg = oxygen_read_ac97(chip, 0, index);
450 mutex_unlock(&chip->mutex);
451 value->value.integer.value[0] = 31 - (reg & 0x1f);
452 value->value.integer.value[1] = 31 - ((reg >> 8) & 0x1f);
456 static int ac97_volume_put(struct snd_kcontrol *ctl,
457 struct snd_ctl_elem_value *value)
459 struct oxygen *chip = ctl->private_data;
460 unsigned int index = ctl->private_value;
464 mutex_lock(&chip->mutex);
465 oldreg = oxygen_read_ac97(chip, 0, index);
467 newreg = (newreg & ~0x1f) |
468 (31 - (value->value.integer.value[0] & 0x1f));
469 newreg = (newreg & ~0x1f00) |
470 ((31 - (value->value.integer.value[0] & 0x1f)) << 8);
471 change = newreg != oldreg;
473 oxygen_write_ac97(chip, 0, index, newreg);
474 mutex_unlock(&chip->mutex);
478 #define AC97_SWITCH(xname, index, bitnr, invert) { \
479 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
481 .info = snd_ctl_boolean_mono_info, \
482 .get = ac97_switch_get, \
483 .put = ac97_switch_put, \
484 .private_value = ((invert) << 16) | ((bitnr) << 8) | (index), \
486 #define AC97_VOLUME(xname, index) { \
487 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
489 .info = ac97_volume_info, \
490 .get = ac97_volume_get, \
491 .put = ac97_volume_put, \
492 .tlv = { .p = ac97_db_scale, }, \
493 .private_value = (index), \
496 static DECLARE_TLV_DB_SCALE(ac97_db_scale, -3450, 150, 0);
498 static const struct snd_kcontrol_new controls[] = {
500 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
501 .name = "PCM Playback Volume",
502 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
503 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
504 .info = dac_volume_info,
505 .get = dac_volume_get,
506 .put = dac_volume_put,
508 .p = NULL, /* set later */
512 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
513 .name = "PCM Playback Switch",
514 .info = snd_ctl_boolean_mono_info,
519 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
520 .name = "Stereo Upmixing",
526 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
527 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
528 .info = snd_ctl_boolean_mono_info,
529 .get = spdif_switch_get,
530 .put = spdif_switch_put,
533 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
535 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
537 .get = spdif_default_get,
538 .put = spdif_default_put,
541 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
543 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
544 .access = SNDRV_CTL_ELEM_ACCESS_READ,
546 .get = spdif_mask_get,
549 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
551 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
552 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
553 SNDRV_CTL_ELEM_ACCESS_INACTIVE,
555 .get = spdif_pcm_get,
556 .put = spdif_pcm_put,
559 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
561 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
562 .access = SNDRV_CTL_ELEM_ACCESS_READ,
564 .get = spdif_input_mask_get,
567 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
569 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
570 .access = SNDRV_CTL_ELEM_ACCESS_READ,
572 .get = spdif_input_default_get,
574 AC97_VOLUME("Mic Capture Volume", AC97_MIC),
575 AC97_SWITCH("Mic Capture Switch", AC97_MIC, 15, 1),
576 AC97_SWITCH("Mic Boost (+20dB)", AC97_MIC, 6, 0),
577 AC97_SWITCH("Line Capture Switch", AC97_LINE, 15, 1),
578 AC97_VOLUME("CD Capture Volume", AC97_CD),
579 AC97_SWITCH("CD Capture Switch", AC97_CD, 15, 1),
580 AC97_VOLUME("Aux Capture Volume", AC97_AUX),
581 AC97_SWITCH("Aux Capture Switch", AC97_AUX, 15, 1),
584 static void oxygen_any_ctl_free(struct snd_kcontrol *ctl)
586 struct oxygen *chip = ctl->private_data;
588 /* I'm too lazy to write a function for each control :-) */
589 chip->spdif_pcm_ctl = NULL;
590 chip->spdif_input_bits_ctl = NULL;
593 int oxygen_mixer_init(struct oxygen *chip)
596 struct snd_kcontrol *ctl;
599 for (i = 0; i < ARRAY_SIZE(controls); ++i) {
600 ctl = snd_ctl_new1(&controls[i], chip);
603 if (!strcmp(ctl->id.name, "PCM Playback Volume"))
604 ctl->tlv.p = chip->model->dac_tlv;
605 else if (chip->model->cd_in_from_video_in &&
606 !strncmp(ctl->id.name, "CD Capture ", 11))
607 ctl->private_value ^= AC97_CD ^ AC97_VIDEO;
608 err = snd_ctl_add(chip->card, ctl);
611 if (!strcmp(ctl->id.name,
612 SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM))) {
613 chip->spdif_pcm_ctl = ctl;
614 ctl->private_free = oxygen_any_ctl_free;
615 } else if (!strcmp(ctl->id.name,
616 SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT))) {
617 chip->spdif_input_bits_ctl = ctl;
618 ctl->private_free = oxygen_any_ctl_free;
621 return chip->model->mixer_init ? chip->model->mixer_init(chip) : 0;