xref: /openbmc/linux/sound/drivers/vx/vx_mixer.c (revision e9246c87)
1 /*
2  * Driver for Digigram VX soundcards
3  *
4  * Common mixer part
5  *
6  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
7  *
8  *   This program is free software; you can redistribute it and/or modify
9  *   it under the terms of the GNU General Public License as published by
10  *   the Free Software Foundation; either version 2 of the License, or
11  *   (at your option) any later version.
12  *
13  *   This program is distributed in the hope that it will be useful,
14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *   GNU General Public License for more details.
17  *
18  *   You should have received a copy of the GNU General Public License
19  *   along with this program; if not, write to the Free Software
20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21  */
22 
23 #include <sound/core.h>
24 #include <sound/control.h>
25 #include <sound/tlv.h>
26 #include <sound/vx_core.h>
27 #include "vx_cmd.h"
28 
29 
30 /*
31  * write a codec data (24bit)
32  */
33 static void vx_write_codec_reg(struct vx_core *chip, int codec, unsigned int data)
34 {
35 	if (snd_BUG_ON(!chip->ops->write_codec))
36 		return;
37 
38 	if (chip->chip_status & VX_STAT_IS_STALE)
39 		return;
40 
41 	mutex_lock(&chip->lock);
42 	chip->ops->write_codec(chip, codec, data);
43 	mutex_unlock(&chip->lock);
44 }
45 
46 /*
47  * Data type used to access the Codec
48  */
49 union vx_codec_data {
50 	u32 l;
51 #ifdef SNDRV_BIG_ENDIAN
52 	struct w {
53 		u16 h;
54 		u16 l;
55 	} w;
56 	struct b {
57 		u8 hh;
58 		u8 mh;
59 		u8 ml;
60 		u8 ll;
61 	} b;
62 #else /* LITTLE_ENDIAN */
63 	struct w {
64 		u16 l;
65 		u16 h;
66 	} w;
67 	struct b {
68 		u8 ll;
69 		u8 ml;
70 		u8 mh;
71 		u8 hh;
72 	} b;
73 #endif
74 };
75 
76 #define SET_CDC_DATA_SEL(di,s)          ((di).b.mh = (u8) (s))
77 #define SET_CDC_DATA_REG(di,r)          ((di).b.ml = (u8) (r))
78 #define SET_CDC_DATA_VAL(di,d)          ((di).b.ll = (u8) (d))
79 #define SET_CDC_DATA_INIT(di)           ((di).l = 0L, SET_CDC_DATA_SEL(di,XX_CODEC_SELECTOR))
80 
81 /*
82  * set up codec register and write the value
83  * @codec: the codec id, 0 or 1
84  * @reg: register index
85  * @val: data value
86  */
87 static void vx_set_codec_reg(struct vx_core *chip, int codec, int reg, int val)
88 {
89 	union vx_codec_data data;
90 	/* DAC control register */
91 	SET_CDC_DATA_INIT(data);
92 	SET_CDC_DATA_REG(data, reg);
93 	SET_CDC_DATA_VAL(data, val);
94 	vx_write_codec_reg(chip, codec, data.l);
95 }
96 
97 
98 /*
99  * vx_set_analog_output_level - set the output attenuation level
100  * @codec: the output codec, 0 or 1.  (1 for VXP440 only)
101  * @left: left output level, 0 = mute
102  * @right: right output level
103  */
104 static void vx_set_analog_output_level(struct vx_core *chip, int codec, int left, int right)
105 {
106 	left  = chip->hw->output_level_max - left;
107 	right = chip->hw->output_level_max - right;
108 
109 	if (chip->ops->akm_write) {
110 		chip->ops->akm_write(chip, XX_CODEC_LEVEL_LEFT_REGISTER, left);
111 		chip->ops->akm_write(chip, XX_CODEC_LEVEL_RIGHT_REGISTER, right);
112 	} else {
113 		/* convert to attenuation level: 0 = 0dB (max), 0xe3 = -113.5 dB (min) */
114 		vx_set_codec_reg(chip, codec, XX_CODEC_LEVEL_LEFT_REGISTER, left);
115 		vx_set_codec_reg(chip, codec, XX_CODEC_LEVEL_RIGHT_REGISTER, right);
116 	}
117 }
118 
119 
120 /*
121  * vx_toggle_dac_mute -  mute/unmute DAC
122  * @mute: 0 = unmute, 1 = mute
123  */
124 
125 #define DAC_ATTEN_MIN	0x08
126 #define DAC_ATTEN_MAX	0x38
127 
128 void vx_toggle_dac_mute(struct vx_core *chip, int mute)
129 {
130 	unsigned int i;
131 	for (i = 0; i < chip->hw->num_codecs; i++) {
132 		if (chip->ops->akm_write)
133 			chip->ops->akm_write(chip, XX_CODEC_DAC_CONTROL_REGISTER, mute); /* XXX */
134 		else
135 			vx_set_codec_reg(chip, i, XX_CODEC_DAC_CONTROL_REGISTER,
136 					 mute ? DAC_ATTEN_MAX : DAC_ATTEN_MIN);
137 	}
138 }
139 
140 /*
141  * vx_reset_codec - reset and initialize the codecs
142  */
143 void vx_reset_codec(struct vx_core *chip, int cold_reset)
144 {
145 	unsigned int i;
146 	int port = chip->type >= VX_TYPE_VXPOCKET ? 0x75 : 0x65;
147 
148 	chip->ops->reset_codec(chip);
149 
150 	/* AKM codecs should be initialized in reset_codec callback */
151 	if (! chip->ops->akm_write) {
152 		/* initialize old codecs */
153 		for (i = 0; i < chip->hw->num_codecs; i++) {
154 			/* DAC control register (change level when zero crossing + mute) */
155 			vx_set_codec_reg(chip, i, XX_CODEC_DAC_CONTROL_REGISTER, DAC_ATTEN_MAX);
156 			/* ADC control register */
157 			vx_set_codec_reg(chip, i, XX_CODEC_ADC_CONTROL_REGISTER, 0x00);
158 			/* Port mode register */
159 			vx_set_codec_reg(chip, i, XX_CODEC_PORT_MODE_REGISTER, port);
160 			/* Clock control register */
161 			vx_set_codec_reg(chip, i, XX_CODEC_CLOCK_CONTROL_REGISTER, 0x00);
162 		}
163 	}
164 
165 	/* mute analog output */
166 	for (i = 0; i < chip->hw->num_codecs; i++) {
167 		chip->output_level[i][0] = 0;
168 		chip->output_level[i][1] = 0;
169 		vx_set_analog_output_level(chip, i, 0, 0);
170 	}
171 }
172 
173 /*
174  * change the audio input source
175  * @src: the target source (VX_AUDIO_SRC_XXX)
176  */
177 static void vx_change_audio_source(struct vx_core *chip, int src)
178 {
179 	if (chip->chip_status & VX_STAT_IS_STALE)
180 		return;
181 
182 	mutex_lock(&chip->lock);
183 	chip->ops->change_audio_source(chip, src);
184 	mutex_unlock(&chip->lock);
185 }
186 
187 
188 /*
189  * change the audio source if necessary and possible
190  * returns 1 if the source is actually changed.
191  */
192 int vx_sync_audio_source(struct vx_core *chip)
193 {
194 	if (chip->audio_source_target == chip->audio_source ||
195 	    chip->pcm_running)
196 		return 0;
197 	vx_change_audio_source(chip, chip->audio_source_target);
198 	chip->audio_source = chip->audio_source_target;
199 	return 1;
200 }
201 
202 
203 /*
204  * audio level, mute, monitoring
205  */
206 struct vx_audio_level {
207 	unsigned int has_level: 1;
208 	unsigned int has_monitor_level: 1;
209 	unsigned int has_mute: 1;
210 	unsigned int has_monitor_mute: 1;
211 	unsigned int mute;
212 	unsigned int monitor_mute;
213 	short level;
214 	short monitor_level;
215 };
216 
217 static int vx_adjust_audio_level(struct vx_core *chip, int audio, int capture,
218 				 struct vx_audio_level *info)
219 {
220 	struct vx_rmh rmh;
221 
222 	if (chip->chip_status & VX_STAT_IS_STALE)
223 		return -EBUSY;
224 
225         vx_init_rmh(&rmh, CMD_AUDIO_LEVEL_ADJUST);
226 	if (capture)
227 		rmh.Cmd[0] |= COMMAND_RECORD_MASK;
228 	/* Add Audio IO mask */
229 	rmh.Cmd[1] = 1 << audio;
230 	rmh.Cmd[2] = 0;
231 	if (info->has_level) {
232 		rmh.Cmd[0] |=  VALID_AUDIO_IO_DIGITAL_LEVEL;
233 		rmh.Cmd[2] |= info->level;
234         }
235 	if (info->has_monitor_level) {
236 		rmh.Cmd[0] |=  VALID_AUDIO_IO_MONITORING_LEVEL;
237 		rmh.Cmd[2] |= ((unsigned int)info->monitor_level << 10);
238         }
239 	if (info->has_mute) {
240 		rmh.Cmd[0] |= VALID_AUDIO_IO_MUTE_LEVEL;
241 		if (info->mute)
242 			rmh.Cmd[2] |= AUDIO_IO_HAS_MUTE_LEVEL;
243 	}
244 	if (info->has_monitor_mute) {
245 		/* validate flag for M2 at least to unmute it */
246 		rmh.Cmd[0] |=  VALID_AUDIO_IO_MUTE_MONITORING_1 | VALID_AUDIO_IO_MUTE_MONITORING_2;
247 		if (info->monitor_mute)
248 			rmh.Cmd[2] |= AUDIO_IO_HAS_MUTE_MONITORING_1;
249 	}
250 
251 	return vx_send_msg(chip, &rmh);
252 }
253 
254 
255 #if 0 // not used
256 static int vx_read_audio_level(struct vx_core *chip, int audio, int capture,
257 			       struct vx_audio_level *info)
258 {
259 	int err;
260 	struct vx_rmh rmh;
261 
262 	memset(info, 0, sizeof(*info));
263         vx_init_rmh(&rmh, CMD_GET_AUDIO_LEVELS);
264 	if (capture)
265 		rmh.Cmd[0] |= COMMAND_RECORD_MASK;
266 	/* Add Audio IO mask */
267 	rmh.Cmd[1] = 1 << audio;
268 	err = vx_send_msg(chip, &rmh);
269 	if (err < 0)
270 		return err;
271 	info.level = rmh.Stat[0] & MASK_DSP_WORD_LEVEL;
272 	info.monitor_level = (rmh.Stat[0] >> 10) & MASK_DSP_WORD_LEVEL;
273 	info.mute = (rmh.Stat[i] & AUDIO_IO_HAS_MUTE_LEVEL) ? 1 : 0;
274 	info.monitor_mute = (rmh.Stat[i] & AUDIO_IO_HAS_MUTE_MONITORING_1) ? 1 : 0;
275 	return 0;
276 }
277 #endif // not used
278 
279 /*
280  * set the monitoring level and mute state of the given audio
281  * no more static, because must be called from vx_pcm to demute monitoring
282  */
283 int vx_set_monitor_level(struct vx_core *chip, int audio, int level, int active)
284 {
285 	struct vx_audio_level info;
286 
287 	memset(&info, 0, sizeof(info));
288 	info.has_monitor_level = 1;
289 	info.monitor_level = level;
290 	info.has_monitor_mute = 1;
291 	info.monitor_mute = !active;
292 	chip->audio_monitor[audio] = level;
293 	chip->audio_monitor_active[audio] = active;
294 	return vx_adjust_audio_level(chip, audio, 0, &info); /* playback only */
295 }
296 
297 
298 /*
299  * set the mute status of the given audio
300  */
301 static int vx_set_audio_switch(struct vx_core *chip, int audio, int active)
302 {
303 	struct vx_audio_level info;
304 
305 	memset(&info, 0, sizeof(info));
306 	info.has_mute = 1;
307 	info.mute = !active;
308 	chip->audio_active[audio] = active;
309 	return vx_adjust_audio_level(chip, audio, 0, &info); /* playback only */
310 }
311 
312 /*
313  * set the mute status of the given audio
314  */
315 static int vx_set_audio_gain(struct vx_core *chip, int audio, int capture, int level)
316 {
317 	struct vx_audio_level info;
318 
319 	memset(&info, 0, sizeof(info));
320 	info.has_level = 1;
321 	info.level = level;
322 	chip->audio_gain[capture][audio] = level;
323 	return vx_adjust_audio_level(chip, audio, capture, &info);
324 }
325 
326 /*
327  * reset all audio levels
328  */
329 static void vx_reset_audio_levels(struct vx_core *chip)
330 {
331 	unsigned int i, c;
332 	struct vx_audio_level info;
333 
334 	memset(chip->audio_gain, 0, sizeof(chip->audio_gain));
335 	memset(chip->audio_active, 0, sizeof(chip->audio_active));
336 	memset(chip->audio_monitor, 0, sizeof(chip->audio_monitor));
337 	memset(chip->audio_monitor_active, 0, sizeof(chip->audio_monitor_active));
338 
339 	for (c = 0; c < 2; c++) {
340 		for (i = 0; i < chip->hw->num_ins * 2; i++) {
341 			memset(&info, 0, sizeof(info));
342 			if (c == 0) {
343 				info.has_monitor_level = 1;
344 				info.has_mute = 1;
345 				info.has_monitor_mute = 1;
346 			}
347 			info.has_level = 1;
348 			info.level = CVAL_0DB; /* default: 0dB */
349 			vx_adjust_audio_level(chip, i, c, &info);
350 			chip->audio_gain[c][i] = CVAL_0DB;
351 			chip->audio_monitor[i] = CVAL_0DB;
352 		}
353 	}
354 }
355 
356 
357 /*
358  * VU, peak meter record
359  */
360 
361 #define VU_METER_CHANNELS	2
362 
363 struct vx_vu_meter {
364 	int saturated;
365 	int vu_level;
366 	int peak_level;
367 };
368 
369 /*
370  * get the VU and peak meter values
371  * @audio: the audio index
372  * @capture: 0 = playback, 1 = capture operation
373  * @info: the array of vx_vu_meter records (size = 2).
374  */
375 static int vx_get_audio_vu_meter(struct vx_core *chip, int audio, int capture, struct vx_vu_meter *info)
376 {
377 	struct vx_rmh rmh;
378 	int i, err;
379 
380 	if (chip->chip_status & VX_STAT_IS_STALE)
381 		return -EBUSY;
382 
383 	vx_init_rmh(&rmh, CMD_AUDIO_VU_PIC_METER);
384 	rmh.LgStat += 2 * VU_METER_CHANNELS;
385 	if (capture)
386 		rmh.Cmd[0] |= COMMAND_RECORD_MASK;
387 
388         /* Add Audio IO mask */
389 	rmh.Cmd[1] = 0;
390 	for (i = 0; i < VU_METER_CHANNELS; i++)
391 		rmh.Cmd[1] |= 1 << (audio + i);
392 	err = vx_send_msg(chip, &rmh);
393 	if (err < 0)
394 		return err;
395 	/* Read response */
396 	for (i = 0; i < 2 * VU_METER_CHANNELS; i +=2) {
397 		info->saturated = (rmh.Stat[0] & (1 << (audio + i))) ? 1 : 0;
398 		info->vu_level = rmh.Stat[i + 1];
399 		info->peak_level = rmh.Stat[i + 2];
400 		info++;
401 	}
402 	return 0;
403 }
404 
405 
406 /*
407  * control API entries
408  */
409 
410 /*
411  * output level control
412  */
413 static int vx_output_level_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
414 {
415 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
416 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
417 	uinfo->count = 2;
418 	uinfo->value.integer.min = 0;
419 	uinfo->value.integer.max = chip->hw->output_level_max;
420 	return 0;
421 }
422 
423 static int vx_output_level_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
424 {
425 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
426 	int codec = kcontrol->id.index;
427 	mutex_lock(&chip->mixer_mutex);
428 	ucontrol->value.integer.value[0] = chip->output_level[codec][0];
429 	ucontrol->value.integer.value[1] = chip->output_level[codec][1];
430 	mutex_unlock(&chip->mixer_mutex);
431 	return 0;
432 }
433 
434 static int vx_output_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
435 {
436 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
437 	int codec = kcontrol->id.index;
438 	unsigned int val[2], vmax;
439 
440 	vmax = chip->hw->output_level_max;
441 	val[0] = ucontrol->value.integer.value[0];
442 	val[1] = ucontrol->value.integer.value[1];
443 	if (val[0] > vmax || val[1] > vmax)
444 		return -EINVAL;
445 	mutex_lock(&chip->mixer_mutex);
446 	if (val[0] != chip->output_level[codec][0] ||
447 	    val[1] != chip->output_level[codec][1]) {
448 		vx_set_analog_output_level(chip, codec, val[0], val[1]);
449 		chip->output_level[codec][0] = val[0];
450 		chip->output_level[codec][1] = val[1];
451 		mutex_unlock(&chip->mixer_mutex);
452 		return 1;
453 	}
454 	mutex_unlock(&chip->mixer_mutex);
455 	return 0;
456 }
457 
458 static struct snd_kcontrol_new vx_control_output_level = {
459 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
460 	.access =	(SNDRV_CTL_ELEM_ACCESS_READWRITE |
461 			 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
462 	.name =		"Master Playback Volume",
463 	.info =		vx_output_level_info,
464 	.get =		vx_output_level_get,
465 	.put =		vx_output_level_put,
466 	/* tlv will be filled later */
467 };
468 
469 /*
470  * audio source select
471  */
472 static int vx_audio_src_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
473 {
474 	static char *texts_mic[3] = {
475 		"Digital", "Line", "Mic"
476 	};
477 	static char *texts_vx2[2] = {
478 		"Digital", "Analog"
479 	};
480 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
481 
482 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
483 	uinfo->count = 1;
484 	if (chip->type >= VX_TYPE_VXPOCKET) {
485 		uinfo->value.enumerated.items = 3;
486 		if (uinfo->value.enumerated.item > 2)
487 			uinfo->value.enumerated.item = 2;
488 		strcpy(uinfo->value.enumerated.name,
489 		       texts_mic[uinfo->value.enumerated.item]);
490 	} else {
491 		uinfo->value.enumerated.items = 2;
492 		if (uinfo->value.enumerated.item > 1)
493 			uinfo->value.enumerated.item = 1;
494 		strcpy(uinfo->value.enumerated.name,
495 		       texts_vx2[uinfo->value.enumerated.item]);
496 	}
497 	return 0;
498 }
499 
500 static int vx_audio_src_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
501 {
502 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
503 	ucontrol->value.enumerated.item[0] = chip->audio_source_target;
504 	return 0;
505 }
506 
507 static int vx_audio_src_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
508 {
509 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
510 
511 	if (chip->type >= VX_TYPE_VXPOCKET) {
512 		if (ucontrol->value.enumerated.item[0] > 2)
513 			return -EINVAL;
514 	} else {
515 		if (ucontrol->value.enumerated.item[0] > 1)
516 			return -EINVAL;
517 	}
518 	mutex_lock(&chip->mixer_mutex);
519 	if (chip->audio_source_target != ucontrol->value.enumerated.item[0]) {
520 		chip->audio_source_target = ucontrol->value.enumerated.item[0];
521 		vx_sync_audio_source(chip);
522 		mutex_unlock(&chip->mixer_mutex);
523 		return 1;
524 	}
525 	mutex_unlock(&chip->mixer_mutex);
526 	return 0;
527 }
528 
529 static struct snd_kcontrol_new vx_control_audio_src = {
530 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
531 	.name =		"Capture Source",
532 	.info =		vx_audio_src_info,
533 	.get =		vx_audio_src_get,
534 	.put =		vx_audio_src_put,
535 };
536 
537 /*
538  * clock mode selection
539  */
540 static int vx_clock_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
541 {
542 	static char *texts[3] = {
543 		"Auto", "Internal", "External"
544 	};
545 
546 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
547 	uinfo->count = 1;
548 	uinfo->value.enumerated.items = 3;
549 	if (uinfo->value.enumerated.item > 2)
550 		uinfo->value.enumerated.item = 2;
551 	strcpy(uinfo->value.enumerated.name,
552 	       texts[uinfo->value.enumerated.item]);
553 	return 0;
554 }
555 
556 static int vx_clock_mode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
557 {
558 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
559 	ucontrol->value.enumerated.item[0] = chip->clock_mode;
560 	return 0;
561 }
562 
563 static int vx_clock_mode_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
564 {
565 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
566 
567 	if (ucontrol->value.enumerated.item[0] > 2)
568 		return -EINVAL;
569 	mutex_lock(&chip->mixer_mutex);
570 	if (chip->clock_mode != ucontrol->value.enumerated.item[0]) {
571 		chip->clock_mode = ucontrol->value.enumerated.item[0];
572 		vx_set_clock(chip, chip->freq);
573 		mutex_unlock(&chip->mixer_mutex);
574 		return 1;
575 	}
576 	mutex_unlock(&chip->mixer_mutex);
577 	return 0;
578 }
579 
580 static struct snd_kcontrol_new vx_control_clock_mode = {
581 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
582 	.name =		"Clock Mode",
583 	.info =		vx_clock_mode_info,
584 	.get =		vx_clock_mode_get,
585 	.put =		vx_clock_mode_put,
586 };
587 
588 /*
589  * Audio Gain
590  */
591 static int vx_audio_gain_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
592 {
593 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
594 	uinfo->count = 2;
595 	uinfo->value.integer.min = 0;
596 	uinfo->value.integer.max = CVAL_MAX;
597 	return 0;
598 }
599 
600 static int vx_audio_gain_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
601 {
602 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
603 	int audio = kcontrol->private_value & 0xff;
604 	int capture = (kcontrol->private_value >> 8) & 1;
605 
606 	mutex_lock(&chip->mixer_mutex);
607 	ucontrol->value.integer.value[0] = chip->audio_gain[capture][audio];
608 	ucontrol->value.integer.value[1] = chip->audio_gain[capture][audio+1];
609 	mutex_unlock(&chip->mixer_mutex);
610 	return 0;
611 }
612 
613 static int vx_audio_gain_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
614 {
615 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
616 	int audio = kcontrol->private_value & 0xff;
617 	int capture = (kcontrol->private_value >> 8) & 1;
618 	unsigned int val[2];
619 
620 	val[0] = ucontrol->value.integer.value[0];
621 	val[1] = ucontrol->value.integer.value[1];
622 	if (val[0] > CVAL_MAX || val[1] > CVAL_MAX)
623 		return -EINVAL;
624 	mutex_lock(&chip->mixer_mutex);
625 	if (val[0] != chip->audio_gain[capture][audio] ||
626 	    val[1] != chip->audio_gain[capture][audio+1]) {
627 		vx_set_audio_gain(chip, audio, capture, val[0]);
628 		vx_set_audio_gain(chip, audio+1, capture, val[1]);
629 		mutex_unlock(&chip->mixer_mutex);
630 		return 1;
631 	}
632 	mutex_unlock(&chip->mixer_mutex);
633 	return 0;
634 }
635 
636 static int vx_audio_monitor_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
637 {
638 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
639 	int audio = kcontrol->private_value & 0xff;
640 
641 	mutex_lock(&chip->mixer_mutex);
642 	ucontrol->value.integer.value[0] = chip->audio_monitor[audio];
643 	ucontrol->value.integer.value[1] = chip->audio_monitor[audio+1];
644 	mutex_unlock(&chip->mixer_mutex);
645 	return 0;
646 }
647 
648 static int vx_audio_monitor_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
649 {
650 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
651 	int audio = kcontrol->private_value & 0xff;
652 	unsigned int val[2];
653 
654 	val[0] = ucontrol->value.integer.value[0];
655 	val[1] = ucontrol->value.integer.value[1];
656 	if (val[0] > CVAL_MAX || val[1] > CVAL_MAX)
657 		return -EINVAL;
658 
659 	mutex_lock(&chip->mixer_mutex);
660 	if (val[0] != chip->audio_monitor[audio] ||
661 	    val[1] != chip->audio_monitor[audio+1]) {
662 		vx_set_monitor_level(chip, audio, val[0],
663 				     chip->audio_monitor_active[audio]);
664 		vx_set_monitor_level(chip, audio+1, val[1],
665 				     chip->audio_monitor_active[audio+1]);
666 		mutex_unlock(&chip->mixer_mutex);
667 		return 1;
668 	}
669 	mutex_unlock(&chip->mixer_mutex);
670 	return 0;
671 }
672 
673 #define vx_audio_sw_info	snd_ctl_boolean_stereo_info
674 
675 static int vx_audio_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
676 {
677 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
678 	int audio = kcontrol->private_value & 0xff;
679 
680 	mutex_lock(&chip->mixer_mutex);
681 	ucontrol->value.integer.value[0] = chip->audio_active[audio];
682 	ucontrol->value.integer.value[1] = chip->audio_active[audio+1];
683 	mutex_unlock(&chip->mixer_mutex);
684 	return 0;
685 }
686 
687 static int vx_audio_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
688 {
689 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
690 	int audio = kcontrol->private_value & 0xff;
691 
692 	mutex_lock(&chip->mixer_mutex);
693 	if (ucontrol->value.integer.value[0] != chip->audio_active[audio] ||
694 	    ucontrol->value.integer.value[1] != chip->audio_active[audio+1]) {
695 		vx_set_audio_switch(chip, audio,
696 				    !!ucontrol->value.integer.value[0]);
697 		vx_set_audio_switch(chip, audio+1,
698 				    !!ucontrol->value.integer.value[1]);
699 		mutex_unlock(&chip->mixer_mutex);
700 		return 1;
701 	}
702 	mutex_unlock(&chip->mixer_mutex);
703 	return 0;
704 }
705 
706 static int vx_monitor_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
707 {
708 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
709 	int audio = kcontrol->private_value & 0xff;
710 
711 	mutex_lock(&chip->mixer_mutex);
712 	ucontrol->value.integer.value[0] = chip->audio_monitor_active[audio];
713 	ucontrol->value.integer.value[1] = chip->audio_monitor_active[audio+1];
714 	mutex_unlock(&chip->mixer_mutex);
715 	return 0;
716 }
717 
718 static int vx_monitor_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
719 {
720 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
721 	int audio = kcontrol->private_value & 0xff;
722 
723 	mutex_lock(&chip->mixer_mutex);
724 	if (ucontrol->value.integer.value[0] != chip->audio_monitor_active[audio] ||
725 	    ucontrol->value.integer.value[1] != chip->audio_monitor_active[audio+1]) {
726 		vx_set_monitor_level(chip, audio, chip->audio_monitor[audio],
727 				     !!ucontrol->value.integer.value[0]);
728 		vx_set_monitor_level(chip, audio+1, chip->audio_monitor[audio+1],
729 				     !!ucontrol->value.integer.value[1]);
730 		mutex_unlock(&chip->mixer_mutex);
731 		return 1;
732 	}
733 	mutex_unlock(&chip->mixer_mutex);
734 	return 0;
735 }
736 
737 static const DECLARE_TLV_DB_SCALE(db_scale_audio_gain, -10975, 25, 0);
738 
739 static struct snd_kcontrol_new vx_control_audio_gain = {
740 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
741 	.access =	(SNDRV_CTL_ELEM_ACCESS_READWRITE |
742 			 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
743 	/* name will be filled later */
744 	.info =         vx_audio_gain_info,
745 	.get =          vx_audio_gain_get,
746 	.put =          vx_audio_gain_put,
747 	.tlv = { .p = db_scale_audio_gain },
748 };
749 static struct snd_kcontrol_new vx_control_output_switch = {
750 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
751 	.name =         "PCM Playback Switch",
752 	.info =         vx_audio_sw_info,
753 	.get =          vx_audio_sw_get,
754 	.put =          vx_audio_sw_put
755 };
756 static struct snd_kcontrol_new vx_control_monitor_gain = {
757 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
758 	.name =         "Monitoring Volume",
759 	.access =	(SNDRV_CTL_ELEM_ACCESS_READWRITE |
760 			 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
761 	.info =         vx_audio_gain_info,	/* shared */
762 	.get =          vx_audio_monitor_get,
763 	.put =          vx_audio_monitor_put,
764 	.tlv = { .p = db_scale_audio_gain },
765 };
766 static struct snd_kcontrol_new vx_control_monitor_switch = {
767 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
768 	.name =         "Monitoring Switch",
769 	.info =         vx_audio_sw_info,	/* shared */
770 	.get =          vx_monitor_sw_get,
771 	.put =          vx_monitor_sw_put
772 };
773 
774 
775 /*
776  * IEC958 status bits
777  */
778 static int vx_iec958_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
779 {
780 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
781 	uinfo->count = 1;
782 	return 0;
783 }
784 
785 static int vx_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
786 {
787 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
788 
789 	mutex_lock(&chip->mixer_mutex);
790 	ucontrol->value.iec958.status[0] = (chip->uer_bits >> 0) & 0xff;
791 	ucontrol->value.iec958.status[1] = (chip->uer_bits >> 8) & 0xff;
792 	ucontrol->value.iec958.status[2] = (chip->uer_bits >> 16) & 0xff;
793 	ucontrol->value.iec958.status[3] = (chip->uer_bits >> 24) & 0xff;
794 	mutex_unlock(&chip->mixer_mutex);
795         return 0;
796 }
797 
798 static int vx_iec958_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
799 {
800 	ucontrol->value.iec958.status[0] = 0xff;
801 	ucontrol->value.iec958.status[1] = 0xff;
802 	ucontrol->value.iec958.status[2] = 0xff;
803 	ucontrol->value.iec958.status[3] = 0xff;
804         return 0;
805 }
806 
807 static int vx_iec958_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
808 {
809 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
810 	unsigned int val;
811 
812 	val = (ucontrol->value.iec958.status[0] << 0) |
813 	      (ucontrol->value.iec958.status[1] << 8) |
814 	      (ucontrol->value.iec958.status[2] << 16) |
815 	      (ucontrol->value.iec958.status[3] << 24);
816 	mutex_lock(&chip->mixer_mutex);
817 	if (chip->uer_bits != val) {
818 		chip->uer_bits = val;
819 		vx_set_iec958_status(chip, val);
820 		mutex_unlock(&chip->mixer_mutex);
821 		return 1;
822 	}
823 	mutex_unlock(&chip->mixer_mutex);
824 	return 0;
825 }
826 
827 static struct snd_kcontrol_new vx_control_iec958_mask = {
828 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
829 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
830 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
831 	.info =		vx_iec958_info,	/* shared */
832 	.get =		vx_iec958_mask_get,
833 };
834 
835 static struct snd_kcontrol_new vx_control_iec958 = {
836 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
837 	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
838 	.info =         vx_iec958_info,
839 	.get =          vx_iec958_get,
840 	.put =          vx_iec958_put
841 };
842 
843 
844 /*
845  * VU meter
846  */
847 
848 #define METER_MAX	0xff
849 #define METER_SHIFT	16
850 
851 static int vx_vu_meter_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
852 {
853 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
854 	uinfo->count = 2;
855 	uinfo->value.integer.min = 0;
856 	uinfo->value.integer.max = METER_MAX;
857 	return 0;
858 }
859 
860 static int vx_vu_meter_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
861 {
862 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
863 	struct vx_vu_meter meter[2];
864 	int audio = kcontrol->private_value & 0xff;
865 	int capture = (kcontrol->private_value >> 8) & 1;
866 
867 	vx_get_audio_vu_meter(chip, audio, capture, meter);
868 	ucontrol->value.integer.value[0] = meter[0].vu_level >> METER_SHIFT;
869 	ucontrol->value.integer.value[1] = meter[1].vu_level >> METER_SHIFT;
870 	return 0;
871 }
872 
873 static int vx_peak_meter_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
874 {
875 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
876 	struct vx_vu_meter meter[2];
877 	int audio = kcontrol->private_value & 0xff;
878 	int capture = (kcontrol->private_value >> 8) & 1;
879 
880 	vx_get_audio_vu_meter(chip, audio, capture, meter);
881 	ucontrol->value.integer.value[0] = meter[0].peak_level >> METER_SHIFT;
882 	ucontrol->value.integer.value[1] = meter[1].peak_level >> METER_SHIFT;
883 	return 0;
884 }
885 
886 #define vx_saturation_info	snd_ctl_boolean_stereo_info
887 
888 static int vx_saturation_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
889 {
890 	struct vx_core *chip = snd_kcontrol_chip(kcontrol);
891 	struct vx_vu_meter meter[2];
892 	int audio = kcontrol->private_value & 0xff;
893 
894 	vx_get_audio_vu_meter(chip, audio, 1, meter); /* capture only */
895 	ucontrol->value.integer.value[0] = meter[0].saturated;
896 	ucontrol->value.integer.value[1] = meter[1].saturated;
897 	return 0;
898 }
899 
900 static struct snd_kcontrol_new vx_control_vu_meter = {
901 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
902 	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
903 	/* name will be filled later */
904 	.info =		vx_vu_meter_info,
905 	.get =		vx_vu_meter_get,
906 };
907 
908 static struct snd_kcontrol_new vx_control_peak_meter = {
909 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
910 	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
911 	/* name will be filled later */
912 	.info =		vx_vu_meter_info,	/* shared */
913 	.get =		vx_peak_meter_get,
914 };
915 
916 static struct snd_kcontrol_new vx_control_saturation = {
917 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
918 	.name =		"Input Saturation",
919 	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
920 	.info =		vx_saturation_info,
921 	.get =		vx_saturation_get,
922 };
923 
924 
925 
926 /*
927  *
928  */
929 
930 int snd_vx_mixer_new(struct vx_core *chip)
931 {
932 	unsigned int i, c;
933 	int err;
934 	struct snd_kcontrol_new temp;
935 	struct snd_card *card = chip->card;
936 	char name[32];
937 
938 	strcpy(card->mixername, card->driver);
939 
940 	/* output level controls */
941 	for (i = 0; i < chip->hw->num_outs; i++) {
942 		temp = vx_control_output_level;
943 		temp.index = i;
944 		temp.tlv.p = chip->hw->output_level_db_scale;
945 		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
946 			return err;
947 	}
948 
949 	/* PCM volumes, switches, monitoring */
950 	for (i = 0; i < chip->hw->num_outs; i++) {
951 		int val = i * 2;
952 		temp = vx_control_audio_gain;
953 		temp.index = i;
954 		temp.name = "PCM Playback Volume";
955 		temp.private_value = val;
956 		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
957 			return err;
958 		temp = vx_control_output_switch;
959 		temp.index = i;
960 		temp.private_value = val;
961 		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
962 			return err;
963 		temp = vx_control_monitor_gain;
964 		temp.index = i;
965 		temp.private_value = val;
966 		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
967 			return err;
968 		temp = vx_control_monitor_switch;
969 		temp.index = i;
970 		temp.private_value = val;
971 		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
972 			return err;
973 	}
974 	for (i = 0; i < chip->hw->num_outs; i++) {
975 		temp = vx_control_audio_gain;
976 		temp.index = i;
977 		temp.name = "PCM Capture Volume";
978 		temp.private_value = (i * 2) | (1 << 8);
979 		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
980 			return err;
981 	}
982 
983 	/* Audio source */
984 	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_audio_src, chip))) < 0)
985 		return err;
986 	/* clock mode */
987 	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_clock_mode, chip))) < 0)
988 		return err;
989 	/* IEC958 controls */
990 	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958_mask, chip))) < 0)
991 		return err;
992 	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958, chip))) < 0)
993 		return err;
994 	/* VU, peak, saturation meters */
995 	for (c = 0; c < 2; c++) {
996 		static char *dir[2] = { "Output", "Input" };
997 		for (i = 0; i < chip->hw->num_ins; i++) {
998 			int val = (i * 2) | (c << 8);
999 			if (c == 1) {
1000 				temp = vx_control_saturation;
1001 				temp.index = i;
1002 				temp.private_value = val;
1003 				if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
1004 					return err;
1005 			}
1006 			sprintf(name, "%s VU Meter", dir[c]);
1007 			temp = vx_control_vu_meter;
1008 			temp.index = i;
1009 			temp.name = name;
1010 			temp.private_value = val;
1011 			if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
1012 				return err;
1013 			sprintf(name, "%s Peak Meter", dir[c]);
1014 			temp = vx_control_peak_meter;
1015 			temp.index = i;
1016 			temp.name = name;
1017 			temp.private_value = val;
1018 			if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
1019 				return err;
1020 		}
1021 	}
1022 	vx_reset_audio_levels(chip);
1023 	return 0;
1024 }
1025