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Linux 4.15.6
[linux/fpc-iii.git] / sound / usb / mixer_us16x08.c
blob26ed23b18b7774fd495f7ce90e51ec6dc8022e2d
1 /*
2 * Tascam US-16x08 ALSA driver
3 *
4 * Copyright (c) 2016 by Detlef Urban (onkel@paraair.de)
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 */
17
18 #include <linux/slab.h>
19 #include <linux/usb.h>
20 #include <linux/usb/audio-v2.h>
21
22 #include <sound/core.h>
23 #include <sound/control.h>
24
25 #include "usbaudio.h"
26 #include "mixer.h"
27 #include "helper.h"
28
29 #include "mixer_us16x08.h"
30
31 /* USB control message templates */
32 static const char route_msg[] = {
33 0x61,
34 0x02,
35 0x03, /* input from master (0x02) or input from computer bus (0x03) */
36 0x62,
37 0x02,
38 0x01, /* input index (0x01/0x02 eq. left/right) or bus (0x01-0x08) */
39 0x41,
40 0x01,
41 0x61,
42 0x02,
43 0x01,
44 0x62,
45 0x02,
46 0x01, /* output index (0x01-0x08) */
47 0x42,
48 0x01,
49 0x43,
50 0x01,
51 0x00,
52 0x00
53 };
54
55 static const char mix_init_msg1[] = {
56 0x71, 0x01, 0x00, 0x00
57 };
58
59 static const char mix_init_msg2[] = {
60 0x62, 0x02, 0x00, 0x61, 0x02, 0x04, 0xb1, 0x01, 0x00, 0x00
61 };
62
63 static const char mix_msg_in[] = {
64 /* default message head, equal to all mixers */
65 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
66 0x81, /* 0x06: Controller ID */
67 0x02, /* 0x07: */
68 0x00, /* 0x08: Value of common mixer */
69 0x00,
70 0x00
71 };
72
73 static const char mix_msg_out[] = {
74 /* default message head, equal to all mixers */
75 0x61, 0x02, 0x02, 0x62, 0x02, 0x01,
76 0x81, /* 0x06: Controller ID */
77 0x02, /* 0x07: */
78 0x00, /* 0x08: Value of common mixer */
79 0x00,
80 0x00
81 };
82
83 static const char bypass_msg_out[] = {
84 0x45,
85 0x02,
86 0x01, /* on/off flag */
87 0x00,
88 0x00
89 };
90
91 static const char bus_msg_out[] = {
92 0x44,
93 0x02,
94 0x01, /* on/off flag */
95 0x00,
96 0x00
97 };
98
99 static const char comp_msg[] = {
100 /* default message head, equal to all mixers */
101 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
102 0x91,
103 0x02,
104 0xf0, /* 0x08: Threshold db (8) (e0 ... 00) (+-0dB -- -32dB) x-32 */
105 0x92,
106 0x02,
107 0x0a, /* 0x0b: Ratio (0a,0b,0d,0f,11,14,19,1e,23,28,32,3c,50,a0,ff) */
108 0x93,
109 0x02,
110 0x02, /* 0x0e: Attack (0x02 ... 0xc0) (2ms ... 200ms) */
111 0x94,
112 0x02,
113 0x01, /* 0x11: Release (0x01 ... 0x64) (10ms ... 1000ms) x*10 */
114 0x95,
115 0x02,
116 0x03, /* 0x14: gain (0 ... 20) (0dB .. 20dB) */
117 0x96,
118 0x02,
119 0x01,
120 0x97,
121 0x02,
122 0x01, /* 0x1a: main Comp switch (0 ... 1) (off ... on)) */
123 0x00,
124 0x00
125 };
126
127 static const char eqs_msq[] = {
128 /* default message head, equal to all mixers */
129 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
130 0x51, /* 0x06: Controller ID */
131 0x02,
132 0x04, /* 0x08: EQ set num (0x01..0x04) (LOW, LOWMID, HIGHMID, HIGH)) */
133 0x52,
134 0x02,
135 0x0c, /* 0x0b: value dB (0 ... 12) (-12db .. +12db) x-6 */
136 0x53,
137 0x02,
138 0x0f, /* 0x0e: value freq (32-47) (1.7kHz..18kHz) */
139 0x54,
140 0x02,
141 0x02, /* 0x11: band width (0-6) (Q16-Q0.25) 2^x/4 (EQ xxMID only) */
142 0x55,
143 0x02,
144 0x01, /* 0x14: main EQ switch (0 ... 1) (off ... on)) */
145 0x00,
146 0x00
147 };
148
149 /* compressor ratio map */
150 static const char ratio_map[] = {
151 0x0a, 0x0b, 0x0d, 0x0f, 0x11, 0x14, 0x19, 0x1e,
152 0x23, 0x28, 0x32, 0x3c, 0x50, 0xa0, 0xff
153 };
154
155 /* route enumeration names */
156 static const char *const route_names[] = {
157 "Master Left", "Master Right", "Output 1", "Output 2", "Output 3",
158 "Output 4", "Output 5", "Output 6", "Output 7", "Output 8",
159 };
160
161 static int snd_us16x08_recv_urb(struct snd_usb_audio *chip,
162 unsigned char *buf, int size)
163 {
164
165 mutex_lock(&chip->mutex);
166 snd_usb_ctl_msg(chip->dev,
167 usb_rcvctrlpipe(chip->dev, 0),
168 SND_US16X08_URB_METER_REQUEST,
169 SND_US16X08_URB_METER_REQUESTTYPE, 0, 0, buf, size);
170 mutex_unlock(&chip->mutex);
171 return 0;
172 }
173
174 /* wrapper function to send prepared URB buffer to usb device. Return an error
175 * code if something went wrong
176 */
177 static int snd_us16x08_send_urb(struct snd_usb_audio *chip, char *buf, int size)
178 {
179 return snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0),
180 SND_US16X08_URB_REQUEST, SND_US16X08_URB_REQUESTTYPE,
181 0, 0, buf, size);
182 }
183
184 static int snd_us16x08_route_info(struct snd_kcontrol *kcontrol,
185 struct snd_ctl_elem_info *uinfo)
186 {
187 return snd_ctl_enum_info(uinfo, 1, 10, route_names);
188 }
189
190 static int snd_us16x08_route_get(struct snd_kcontrol *kcontrol,
191 struct snd_ctl_elem_value *ucontrol)
192 {
193 struct usb_mixer_elem_info *elem = kcontrol->private_data;
194 int index = ucontrol->id.index;
195
196 /* route has no bias */
197 ucontrol->value.enumerated.item[0] = elem->cache_val[index];
198
199 return 0;
200 }
201
202 static int snd_us16x08_route_put(struct snd_kcontrol *kcontrol,
203 struct snd_ctl_elem_value *ucontrol)
204 {
205 struct usb_mixer_elem_info *elem = kcontrol->private_data;
206 struct snd_usb_audio *chip = elem->head.mixer->chip;
207 int index = ucontrol->id.index;
208 char buf[sizeof(route_msg)];
209 int val, val_org, err;
210
211 /* get the new value (no bias for routes) */
212 val = ucontrol->value.enumerated.item[0];
213
214 /* sanity check */
215 if (val < 0 || val > 9)
216 return -EINVAL;
217
218 /* prepare the message buffer from template */
219 memcpy(buf, route_msg, sizeof(route_msg));
220
221 if (val < 2) {
222 /* input comes from a master channel */
223 val_org = val;
224 buf[2] = 0x02;
225 } else {
226 /* input comes from a computer channel */
227 buf[2] = 0x03;
228 val_org = val - 2;
229 }
230
231 /* place new route selection in URB message */
232 buf[5] = (unsigned char) (val_org & 0x0f) + 1;
233 /* place route selector in URB message */
234 buf[13] = index + 1;
235
236 err = snd_us16x08_send_urb(chip, buf, sizeof(route_msg));
237
238 if (err > 0) {
239 elem->cached |= 1 << index;
240 elem->cache_val[index] = val;
241 } else {
242 usb_audio_dbg(chip, "Failed to set routing, err:%d\n", err);
243 }
244
245 return err > 0 ? 1 : 0;
246 }
247
248 static int snd_us16x08_master_info(struct snd_kcontrol *kcontrol,
249 struct snd_ctl_elem_info *uinfo)
250 {
251 uinfo->count = 1;
252 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
253 uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
254 uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
255 uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
256 return 0;
257 }
258
259 static int snd_us16x08_master_get(struct snd_kcontrol *kcontrol,
260 struct snd_ctl_elem_value *ucontrol)
261 {
262 struct usb_mixer_elem_info *elem = kcontrol->private_data;
263 int index = ucontrol->id.index;
264
265 ucontrol->value.integer.value[0] = elem->cache_val[index];
266
267 return 0;
268 }
269
270 static int snd_us16x08_master_put(struct snd_kcontrol *kcontrol,
271 struct snd_ctl_elem_value *ucontrol)
272 {
273 struct usb_mixer_elem_info *elem = kcontrol->private_data;
274 struct snd_usb_audio *chip = elem->head.mixer->chip;
275 char buf[sizeof(mix_msg_out)];
276 int val, err;
277 int index = ucontrol->id.index;
278
279 /* new control value incl. bias*/
280 val = ucontrol->value.integer.value[0];
281
282 /* sanity check */
283 if (val < SND_US16X08_KCMIN(kcontrol)
284 || val > SND_US16X08_KCMAX(kcontrol))
285 return -EINVAL;
286
287 /* prepare the message buffer from template */
288 memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
289
290 buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
291 buf[6] = elem->head.id;
292
293 /* place channel selector in URB message */
294 buf[5] = index + 1;
295 err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
296
297 if (err > 0) {
298 elem->cached |= 1 << index;
299 elem->cache_val[index] = val;
300 } else {
301 usb_audio_dbg(chip, "Failed to set master, err:%d\n", err);
302 }
303
304 return err > 0 ? 1 : 0;
305 }
306
307 static int snd_us16x08_bus_put(struct snd_kcontrol *kcontrol,
308 struct snd_ctl_elem_value *ucontrol)
309 {
310 struct usb_mixer_elem_info *elem = kcontrol->private_data;
311 struct snd_usb_audio *chip = elem->head.mixer->chip;
312 char buf[sizeof(mix_msg_out)];
313 int val, err = 0;
314
315 val = ucontrol->value.integer.value[0];
316
317 /* prepare the message buffer from template */
318 switch (elem->head.id) {
319 case SND_US16X08_ID_BYPASS:
320 memcpy(buf, bypass_msg_out, sizeof(bypass_msg_out));
321 buf[2] = val;
322 err = snd_us16x08_send_urb(chip, buf, sizeof(bypass_msg_out));
323 break;
324 case SND_US16X08_ID_BUSS_OUT:
325 memcpy(buf, bus_msg_out, sizeof(bus_msg_out));
326 buf[2] = val;
327 err = snd_us16x08_send_urb(chip, buf, sizeof(bus_msg_out));
328 break;
329 case SND_US16X08_ID_MUTE:
330 memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
331 buf[8] = val;
332 buf[6] = elem->head.id;
333 buf[5] = 1;
334 err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
335 break;
336 }
337
338 if (err > 0) {
339 elem->cached |= 1;
340 elem->cache_val[0] = val;
341 } else {
342 usb_audio_dbg(chip, "Failed to set buss param, err:%d\n", err);
343 }
344
345 return err > 0 ? 1 : 0;
346 }
347
348 static int snd_us16x08_bus_get(struct snd_kcontrol *kcontrol,
349 struct snd_ctl_elem_value *ucontrol)
350 {
351 struct usb_mixer_elem_info *elem = kcontrol->private_data;
352
353 switch (elem->head.id) {
354 case SND_US16X08_ID_BUSS_OUT:
355 ucontrol->value.integer.value[0] = elem->cache_val[0];
356 break;
357 case SND_US16X08_ID_BYPASS:
358 ucontrol->value.integer.value[0] = elem->cache_val[0];
359 break;
360 case SND_US16X08_ID_MUTE:
361 ucontrol->value.integer.value[0] = elem->cache_val[0];
362 break;
363 }
364
365 return 0;
366 }
367
368 /* gets a current mixer value from common store */
369 static int snd_us16x08_channel_get(struct snd_kcontrol *kcontrol,
370 struct snd_ctl_elem_value *ucontrol)
371 {
372 struct usb_mixer_elem_info *elem = kcontrol->private_data;
373 int index = ucontrol->id.index;
374
375 ucontrol->value.integer.value[0] = elem->cache_val[index];
376
377 return 0;
378 }
379
380 static int snd_us16x08_channel_put(struct snd_kcontrol *kcontrol,
381 struct snd_ctl_elem_value *ucontrol)
382 {
383 struct usb_mixer_elem_info *elem = kcontrol->private_data;
384 struct snd_usb_audio *chip = elem->head.mixer->chip;
385 char buf[sizeof(mix_msg_in)];
386 int val, err;
387 int index = ucontrol->id.index;
388
389 val = ucontrol->value.integer.value[0];
390
391 /* sanity check */
392 if (val < SND_US16X08_KCMIN(kcontrol)
393 || val > SND_US16X08_KCMAX(kcontrol))
394 return -EINVAL;
395
396 /* prepare URB message from template */
397 memcpy(buf, mix_msg_in, sizeof(mix_msg_in));
398
399 /* add the bias to the new value */
400 buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
401 buf[6] = elem->head.id;
402 buf[5] = index + 1;
403
404 err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_in));
405
406 if (err > 0) {
407 elem->cached |= 1 << index;
408 elem->cache_val[index] = val;
409 } else {
410 usb_audio_dbg(chip, "Failed to set channel, err:%d\n", err);
411 }
412
413 return err > 0 ? 1 : 0;
414 }
415
416 static int snd_us16x08_mix_info(struct snd_kcontrol *kcontrol,
417 struct snd_ctl_elem_info *uinfo)
418 {
419 uinfo->count = 1;
420 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
421 uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
422 uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
423 uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
424 return 0;
425 }
426
427 static int snd_us16x08_comp_get(struct snd_kcontrol *kcontrol,
428 struct snd_ctl_elem_value *ucontrol)
429 {
430 struct usb_mixer_elem_info *elem = kcontrol->private_data;
431 struct snd_us16x08_comp_store *store = elem->private_data;
432 int index = ucontrol->id.index;
433 int val_idx = COMP_STORE_IDX(elem->head.id);
434
435 ucontrol->value.integer.value[0] = store->val[val_idx][index];
436
437 return 0;
438 }
439
440 static int snd_us16x08_comp_put(struct snd_kcontrol *kcontrol,
441 struct snd_ctl_elem_value *ucontrol)
442 {
443 struct usb_mixer_elem_info *elem = kcontrol->private_data;
444 struct snd_usb_audio *chip = elem->head.mixer->chip;
445 struct snd_us16x08_comp_store *store = elem->private_data;
446 int index = ucontrol->id.index;
447 char buf[sizeof(comp_msg)];
448 int val_idx, val;
449 int err;
450
451 val = ucontrol->value.integer.value[0];
452
453 /* sanity check */
454 if (val < SND_US16X08_KCMIN(kcontrol)
455 || val > SND_US16X08_KCMAX(kcontrol))
456 return -EINVAL;
457
458 /* new control value incl. bias*/
459 val_idx = elem->head.id - SND_US16X08_ID_COMP_BASE;
460
461 store->val[val_idx][index] = ucontrol->value.integer.value[0];
462
463 /* prepare compressor URB message from template */
464 memcpy(buf, comp_msg, sizeof(comp_msg));
465
466 /* place comp values in message buffer watch bias! */
467 buf[8] = store->val[
468 COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][index]
469 - SND_US16X08_COMP_THRESHOLD_BIAS;
470 buf[11] = ratio_map[store->val[
471 COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][index]];
472 buf[14] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][index]
473 + SND_US16X08_COMP_ATTACK_BIAS;
474 buf[17] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][index]
475 + SND_US16X08_COMP_RELEASE_BIAS;
476 buf[20] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][index];
477 buf[26] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][index];
478
479 /* place channel selector in message buffer */
480 buf[5] = index + 1;
481
482 err = snd_us16x08_send_urb(chip, buf, sizeof(comp_msg));
483
484 if (err > 0) {
485 elem->cached |= 1 << index;
486 elem->cache_val[index] = val;
487 } else {
488 usb_audio_dbg(chip, "Failed to set compressor, err:%d\n", err);
489 }
490
491 return 1;
492 }
493
494 static int snd_us16x08_eqswitch_get(struct snd_kcontrol *kcontrol,
495 struct snd_ctl_elem_value *ucontrol)
496 {
497 int val;
498 struct usb_mixer_elem_info *elem = kcontrol->private_data;
499 struct snd_us16x08_eq_store *store = elem->private_data;
500 int index = ucontrol->id.index;
501
502 /* get low switch from cache is enough, cause all bands are together */
503 val = store->val[EQ_STORE_BAND_IDX(elem->head.id)]
504 [EQ_STORE_PARAM_IDX(elem->head.id)][index];
505 ucontrol->value.integer.value[0] = val;
506
507 return 0;
508 }
509
510 static int snd_us16x08_eqswitch_put(struct snd_kcontrol *kcontrol,
511 struct snd_ctl_elem_value *ucontrol)
512 {
513 struct usb_mixer_elem_info *elem = kcontrol->private_data;
514 struct snd_usb_audio *chip = elem->head.mixer->chip;
515 struct snd_us16x08_eq_store *store = elem->private_data;
516 int index = ucontrol->id.index;
517 char buf[sizeof(eqs_msq)];
518 int val, err = 0;
519 int b_idx;
520
521 /* new control value incl. bias*/
522 val = ucontrol->value.integer.value[0] + SND_US16X08_KCBIAS(kcontrol);
523
524 /* prepare URB message from EQ template */
525 memcpy(buf, eqs_msq, sizeof(eqs_msq));
526
527 /* place channel index in URB message */
528 buf[5] = index + 1;
529 for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
530 /* all four EQ bands have to be enabled/disabled in once */
531 buf[20] = val;
532 buf[17] = store->val[b_idx][2][index];
533 buf[14] = store->val[b_idx][1][index];
534 buf[11] = store->val[b_idx][0][index];
535 buf[8] = b_idx + 1;
536 err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
537 if (err < 0)
538 break;
539 store->val[b_idx][3][index] = val;
540 msleep(15);
541 }
542
543 if (err > 0) {
544 elem->cached |= 1 << index;
545 elem->cache_val[index] = val;
546 } else {
547 usb_audio_dbg(chip, "Failed to set eq switch, err:%d\n", err);
548 }
549
550 return 1;
551 }
552
553 static int snd_us16x08_eq_get(struct snd_kcontrol *kcontrol,
554 struct snd_ctl_elem_value *ucontrol)
555 {
556 int val;
557 struct usb_mixer_elem_info *elem = kcontrol->private_data;
558 struct snd_us16x08_eq_store *store = elem->private_data;
559 int index = ucontrol->id.index;
560 int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
561 int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
562
563 val = store->val[b_idx][p_idx][index];
564
565 ucontrol->value.integer.value[0] = val;
566
567 return 0;
568 }
569
570 static int snd_us16x08_eq_put(struct snd_kcontrol *kcontrol,
571 struct snd_ctl_elem_value *ucontrol)
572 {
573 struct usb_mixer_elem_info *elem = kcontrol->private_data;
574 struct snd_usb_audio *chip = elem->head.mixer->chip;
575 struct snd_us16x08_eq_store *store = elem->private_data;
576 int index = ucontrol->id.index;
577 char buf[sizeof(eqs_msq)];
578 int val, err;
579 int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
580 int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
581
582 val = ucontrol->value.integer.value[0];
583
584 /* sanity check */
585 if (val < SND_US16X08_KCMIN(kcontrol)
586 || val > SND_US16X08_KCMAX(kcontrol))
587 return -EINVAL;
588
589 /* copy URB buffer from EQ template */
590 memcpy(buf, eqs_msq, sizeof(eqs_msq));
591
592 store->val[b_idx][p_idx][index] = val;
593 buf[20] = store->val[b_idx][3][index];
594 buf[17] = store->val[b_idx][2][index];
595 buf[14] = store->val[b_idx][1][index];
596 buf[11] = store->val[b_idx][0][index];
597
598 /* place channel index in URB buffer */
599 buf[5] = index + 1;
600
601 /* place EQ band in URB buffer */
602 buf[8] = b_idx + 1;
603
604 err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
605
606 if (err > 0) {
607 /* store new value in EQ band cache */
608 elem->cached |= 1 << index;
609 elem->cache_val[index] = val;
610 } else {
611 usb_audio_dbg(chip, "Failed to set eq param, err:%d\n", err);
612 }
613
614 return 1;
615 }
616
617 static int snd_us16x08_meter_info(struct snd_kcontrol *kcontrol,
618 struct snd_ctl_elem_info *uinfo)
619 {
620 uinfo->count = 1;
621 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
622 uinfo->value.integer.max = 0x7FFF;
623 uinfo->value.integer.min = 0;
624
625 return 0;
626 }
627
628 /* calculate compressor index for reduction level request */
629 static int snd_get_meter_comp_index(struct snd_us16x08_meter_store *store)
630 {
631 int ret;
632
633 /* any channel active */
634 if (store->comp_active_index) {
635 /* check for stereo link */
636 if (store->comp_active_index & 0x20) {
637 /* reset comp_index to left channel*/
638 if (store->comp_index -
639 store->comp_active_index > 1)
640 store->comp_index =
641 store->comp_active_index;
642
643 ret = store->comp_index++ & 0x1F;
644 } else {
645 /* no stereo link */
646 ret = store->comp_active_index;
647 }
648 } else {
649 /* skip channels with no compressor active */
650 while (!store->comp_store->val[
651 COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)]
652 [store->comp_index - 1]
653 && store->comp_index <= SND_US16X08_MAX_CHANNELS) {
654 store->comp_index++;
655 }
656 ret = store->comp_index++;
657 if (store->comp_index > SND_US16X08_MAX_CHANNELS)
658 store->comp_index = 1;
659 }
660 return ret;
661 }
662
663 /* retrieve the meter level values from URB message */
664 static void get_meter_levels_from_urb(int s,
665 struct snd_us16x08_meter_store *store,
666 u8 *meter_urb)
667 {
668 int val = MUC2(meter_urb, s) + (MUC3(meter_urb, s) << 8);
669
670 if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
671 MUA2(meter_urb, s) == 0x04 && MUB0(meter_urb, s) == 0x62) {
672 if (MUC0(meter_urb, s) == 0x72)
673 store->meter_level[MUB2(meter_urb, s) - 1] = val;
674 if (MUC0(meter_urb, s) == 0xb2)
675 store->comp_level[MUB2(meter_urb, s) - 1] = val;
676 }
677 if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
678 MUA2(meter_urb, s) == 0x02 && MUB0(meter_urb, s) == 0x62)
679 store->master_level[MUB2(meter_urb, s) - 1] = val;
680 }
681
682 /* Function to retrieve current meter values from the device.
683 *
684 * The device needs to be polled for meter values with an initial
685 * requests. It will return with a sequence of different meter value
686 * packages. The first request (case 0:) initiate this meter response sequence.
687 * After the third response, an additional request can be placed,
688 * to retrieve compressor reduction level value for given channel. This round
689 * trip channel selector will skip all inactive compressors.
690 * A mixer can interrupt this round-trip by selecting one ore two (stereo-link)
691 * specific channels.
692 */
693 static int snd_us16x08_meter_get(struct snd_kcontrol *kcontrol,
694 struct snd_ctl_elem_value *ucontrol)
695 {
696 int i, set;
697 struct usb_mixer_elem_info *elem = kcontrol->private_data;
698 struct snd_usb_audio *chip = elem->head.mixer->chip;
699 struct snd_us16x08_meter_store *store = elem->private_data;
700 u8 meter_urb[64];
701
702 switch (kcontrol->private_value) {
703 case 0: {
704 char tmp[sizeof(mix_init_msg1)];
705
706 memcpy(tmp, mix_init_msg1, sizeof(mix_init_msg1));
707 snd_us16x08_send_urb(chip, tmp, 4);
708 snd_us16x08_recv_urb(chip, meter_urb,
709 sizeof(meter_urb));
710 kcontrol->private_value++;
711 break;
712 }
713 case 1:
714 snd_us16x08_recv_urb(chip, meter_urb,
715 sizeof(meter_urb));
716 kcontrol->private_value++;
717 break;
718 case 2:
719 snd_us16x08_recv_urb(chip, meter_urb,
720 sizeof(meter_urb));
721 kcontrol->private_value++;
722 break;
723 case 3: {
724 char tmp[sizeof(mix_init_msg2)];
725
726 memcpy(tmp, mix_init_msg2, sizeof(mix_init_msg2));
727 tmp[2] = snd_get_meter_comp_index(store);
728 snd_us16x08_send_urb(chip, tmp, 10);
729 snd_us16x08_recv_urb(chip, meter_urb,
730 sizeof(meter_urb));
731 kcontrol->private_value = 0;
732 break;
733 }
734 }
735
736 for (set = 0; set < 6; set++)
737 get_meter_levels_from_urb(set, store, meter_urb);
738
739 for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
740 ucontrol->value.integer.value[i] =
741 store ? store->meter_level[i] : 0;
742 }
743
744 ucontrol->value.integer.value[i++] = store ? store->master_level[0] : 0;
745 ucontrol->value.integer.value[i++] = store ? store->master_level[1] : 0;
746
747 for (i = 2; i < SND_US16X08_MAX_CHANNELS + 2; i++)
748 ucontrol->value.integer.value[i + SND_US16X08_MAX_CHANNELS] =
749 store ? store->comp_level[i - 2] : 0;
750
751 return 1;
752 }
753
754 static int snd_us16x08_meter_put(struct snd_kcontrol *kcontrol,
755 struct snd_ctl_elem_value *ucontrol)
756 {
757 struct usb_mixer_elem_info *elem = kcontrol->private_data;
758 struct snd_us16x08_meter_store *store = elem->private_data;
759 int val;
760
761 val = ucontrol->value.integer.value[0];
762
763 /* sanity check */
764 if (val < 0 || val >= SND_US16X08_MAX_CHANNELS)
765 return -EINVAL;
766
767 store->comp_active_index = val;
768 store->comp_index = val;
769
770 return 1;
771 }
772
773 static struct snd_kcontrol_new snd_us16x08_ch_boolean_ctl = {
774 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
775 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
776 .count = 16,
777 .info = snd_us16x08_switch_info,
778 .get = snd_us16x08_channel_get,
779 .put = snd_us16x08_channel_put,
780 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
781 };
782
783 static struct snd_kcontrol_new snd_us16x08_ch_int_ctl = {
784 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
785 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
786 .count = 16,
787 .info = snd_us16x08_mix_info,
788 .get = snd_us16x08_channel_get,
789 .put = snd_us16x08_channel_put,
790 .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
791 };
792
793 static struct snd_kcontrol_new snd_us16x08_pan_int_ctl = {
794 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
795 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
796 .count = 16,
797 .info = snd_us16x08_mix_info,
798 .get = snd_us16x08_channel_get,
799 .put = snd_us16x08_channel_put,
800 .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 255)
801 };
802
803 static struct snd_kcontrol_new snd_us16x08_master_ctl = {
804 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
805 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
806 .count = 1,
807 .info = snd_us16x08_master_info,
808 .get = snd_us16x08_master_get,
809 .put = snd_us16x08_master_put,
810 .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
811 };
812
813 static struct snd_kcontrol_new snd_us16x08_route_ctl = {
814 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
815 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
816 .count = 8,
817 .info = snd_us16x08_route_info,
818 .get = snd_us16x08_route_get,
819 .put = snd_us16x08_route_put,
820 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 9)
821 };
822
823 static struct snd_kcontrol_new snd_us16x08_bus_ctl = {
824 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
825 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
826 .count = 1,
827 .info = snd_us16x08_switch_info,
828 .get = snd_us16x08_bus_get,
829 .put = snd_us16x08_bus_put,
830 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
831 };
832
833 static struct snd_kcontrol_new snd_us16x08_compswitch_ctl = {
834 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
835 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
836 .count = 16,
837 .info = snd_us16x08_switch_info,
838 .get = snd_us16x08_comp_get,
839 .put = snd_us16x08_comp_put,
840 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
841 };
842
843 static struct snd_kcontrol_new snd_us16x08_comp_threshold_ctl = {
844 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
845 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
846 .count = 16,
847 .info = snd_us16x08_mix_info,
848 .get = snd_us16x08_comp_get,
849 .put = snd_us16x08_comp_put,
850 .private_value = SND_US16X08_KCSET(SND_US16X08_COMP_THRESHOLD_BIAS, 1,
851 0, 0x20)
852 };
853
854 static struct snd_kcontrol_new snd_us16x08_comp_ratio_ctl = {
855 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
856 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
857 .count = 16,
858 .info = snd_us16x08_mix_info,
859 .get = snd_us16x08_comp_get,
860 .put = snd_us16x08_comp_put,
861 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0,
862 sizeof(ratio_map) - 1), /*max*/
863 };
864
865 static struct snd_kcontrol_new snd_us16x08_comp_gain_ctl = {
866 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
867 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
868 .count = 16,
869 .info = snd_us16x08_mix_info,
870 .get = snd_us16x08_comp_get,
871 .put = snd_us16x08_comp_put,
872 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x14)
873 };
874
875 static struct snd_kcontrol_new snd_us16x08_comp_attack_ctl = {
876 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
877 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
878 .count = 16,
879 .info = snd_us16x08_mix_info,
880 .get = snd_us16x08_comp_get,
881 .put = snd_us16x08_comp_put,
882 .private_value =
883 SND_US16X08_KCSET(SND_US16X08_COMP_ATTACK_BIAS, 1, 0, 0xc6),
884 };
885
886 static struct snd_kcontrol_new snd_us16x08_comp_release_ctl = {
887 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
888 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
889 .count = 16,
890 .info = snd_us16x08_mix_info,
891 .get = snd_us16x08_comp_get,
892 .put = snd_us16x08_comp_put,
893 .private_value =
894 SND_US16X08_KCSET(SND_US16X08_COMP_RELEASE_BIAS, 1, 0, 0x63),
895 };
896
897 static struct snd_kcontrol_new snd_us16x08_eq_gain_ctl = {
898 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
899 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
900 .count = 16,
901 .info = snd_us16x08_mix_info,
902 .get = snd_us16x08_eq_get,
903 .put = snd_us16x08_eq_put,
904 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 24),
905 };
906
907 static struct snd_kcontrol_new snd_us16x08_eq_low_freq_ctl = {
908 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
909 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
910 .count = 16,
911 .info = snd_us16x08_mix_info,
912 .get = snd_us16x08_eq_get,
913 .put = snd_us16x08_eq_put,
914 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x1F),
915 };
916
917 static struct snd_kcontrol_new snd_us16x08_eq_mid_freq_ctl = {
918 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
919 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
920 .count = 16,
921 .info = snd_us16x08_mix_info,
922 .get = snd_us16x08_eq_get,
923 .put = snd_us16x08_eq_put,
924 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x3F)
925 };
926
927 static struct snd_kcontrol_new snd_us16x08_eq_mid_width_ctl = {
928 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
929 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
930 .count = 16,
931 .info = snd_us16x08_mix_info,
932 .get = snd_us16x08_eq_get,
933 .put = snd_us16x08_eq_put,
934 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x06)
935 };
936
937 static struct snd_kcontrol_new snd_us16x08_eq_high_freq_ctl = {
938 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
939 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
940 .count = 16,
941 .info = snd_us16x08_mix_info,
942 .get = snd_us16x08_eq_get,
943 .put = snd_us16x08_eq_put,
944 .private_value =
945 SND_US16X08_KCSET(SND_US16X08_EQ_HIGHFREQ_BIAS, 1, 0, 0x1F)
946 };
947
948 static struct snd_kcontrol_new snd_us16x08_eq_switch_ctl = {
949 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
950 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
951 .count = 16,
952 .info = snd_us16x08_switch_info,
953 .get = snd_us16x08_eqswitch_get,
954 .put = snd_us16x08_eqswitch_put,
955 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
956 };
957
958 static struct snd_kcontrol_new snd_us16x08_meter_ctl = {
959 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
960 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
961 .count = 1,
962 .info = snd_us16x08_meter_info,
963 .get = snd_us16x08_meter_get,
964 .put = snd_us16x08_meter_put
965 };
966
967 /* control store preparation */
968
969 /* setup compressor store and assign default value */
970 static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void)
971 {
972 int i;
973 struct snd_us16x08_comp_store *tmp;
974
975 tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
976 if (!tmp)
977 return NULL;
978
979 for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
980 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][i]
981 = 0x20;
982 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][i] = 0x00;
983 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][i] = 0x00;
984 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][i] = 0x00;
985 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][i] = 0x00;
986 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][i] = 0x00;
987 }
988 return tmp;
989 }
990
991 /* setup EQ store and assign default values */
992 static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(void)
993 {
994 int i, b_idx;
995 struct snd_us16x08_eq_store *tmp;
996
997 tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
998 if (!tmp)
999 return NULL;
1000
1001 for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
1002 for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
1003 tmp->val[b_idx][0][i] = 0x0c;
1004 tmp->val[b_idx][3][i] = 0x00;
1005 switch (b_idx) {
1006 case 0: /* EQ Low */
1007 tmp->val[b_idx][1][i] = 0x05;
1008 tmp->val[b_idx][2][i] = 0xff;
1009 break;
1010 case 1: /* EQ Mid low */
1011 tmp->val[b_idx][1][i] = 0x0e;
1012 tmp->val[b_idx][2][i] = 0x02;
1013 break;
1014 case 2: /* EQ Mid High */
1015 tmp->val[b_idx][1][i] = 0x1b;
1016 tmp->val[b_idx][2][i] = 0x02;
1017 break;
1018 case 3: /* EQ High */
1019 tmp->val[b_idx][1][i] = 0x2f
1020 - SND_US16X08_EQ_HIGHFREQ_BIAS;
1021 tmp->val[b_idx][2][i] = 0xff;
1022 break;
1023 }
1024 }
1025 }
1026 return tmp;
1027 }
1028
1029 static struct snd_us16x08_meter_store *snd_us16x08_create_meter_store(void)
1030 {
1031 struct snd_us16x08_meter_store *tmp;
1032
1033 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1034 if (!tmp)
1035 return NULL;
1036 tmp->comp_index = 1;
1037 tmp->comp_active_index = 0;
1038 return tmp;
1039 }
1040
1041 /* release elem->private_free as well; called only once for each *_store */
1042 static void elem_private_free(struct snd_kcontrol *kctl)
1043 {
1044 struct usb_mixer_elem_info *elem = kctl->private_data;
1045
1046 if (elem)
1047 kfree(elem->private_data);
1048 kfree(elem);
1049 kctl->private_data = NULL;
1050 }
1051
1052 static int add_new_ctl(struct usb_mixer_interface *mixer,
1053 const struct snd_kcontrol_new *ncontrol,
1054 int index, int val_type, int channels,
1055 const char *name, void *opt,
1056 bool do_private_free,
1057 struct usb_mixer_elem_info **elem_ret)
1058 {
1059 struct snd_kcontrol *kctl;
1060 struct usb_mixer_elem_info *elem;
1061 int err;
1062
1063 usb_audio_dbg(mixer->chip, "us16x08 add mixer %s\n", name);
1064
1065 elem = kzalloc(sizeof(*elem), GFP_KERNEL);
1066 if (!elem)
1067 return -ENOMEM;
1068
1069 elem->head.mixer = mixer;
1070 elem->head.resume = NULL;
1071 elem->control = 0;
1072 elem->idx_off = 0;
1073 elem->head.id = index;
1074 elem->val_type = val_type;
1075 elem->channels = channels;
1076 elem->private_data = opt;
1077
1078 kctl = snd_ctl_new1(ncontrol, elem);
1079 if (!kctl) {
1080 kfree(elem);
1081 return -ENOMEM;
1082 }
1083
1084 if (do_private_free)
1085 kctl->private_free = elem_private_free;
1086 else
1087 kctl->private_free = snd_usb_mixer_elem_free;
1088
1089 strlcpy(kctl->id.name, name, sizeof(kctl->id.name));
1090
1091 err = snd_usb_mixer_add_control(&elem->head, kctl);
1092 if (err < 0)
1093 return err;
1094
1095 if (elem_ret)
1096 *elem_ret = elem;
1097
1098 return 0;
1099 }
1100
1101 /* table of EQ controls */
1102 static const struct snd_us16x08_control_params eq_controls[] = {
1103 { /* EQ switch */
1104 .kcontrol_new = &snd_us16x08_eq_switch_ctl,
1105 .control_id = SND_US16X08_ID_EQENABLE,
1106 .type = USB_MIXER_BOOLEAN,
1107 .num_channels = 16,
1108 .name = "EQ Switch",
1109 },
1110 { /* EQ low gain */
1111 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1112 .control_id = SND_US16X08_ID_EQLOWLEVEL,
1113 .type = USB_MIXER_U8,
1114 .num_channels = 16,
1115 .name = "EQ Low Volume",
1116 },
1117 { /* EQ low freq */
1118 .kcontrol_new = &snd_us16x08_eq_low_freq_ctl,
1119 .control_id = SND_US16X08_ID_EQLOWFREQ,
1120 .type = USB_MIXER_U8,
1121 .num_channels = 16,
1122 .name = "EQ Low Frequence",
1123 },
1124 { /* EQ mid low gain */
1125 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1126 .control_id = SND_US16X08_ID_EQLOWMIDLEVEL,
1127 .type = USB_MIXER_U8,
1128 .num_channels = 16,
1129 .name = "EQ MidLow Volume",
1130 },
1131 { /* EQ mid low freq */
1132 .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
1133 .control_id = SND_US16X08_ID_EQLOWMIDFREQ,
1134 .type = USB_MIXER_U8,
1135 .num_channels = 16,
1136 .name = "EQ MidLow Frequence",
1137 },
1138 { /* EQ mid low Q */
1139 .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
1140 .control_id = SND_US16X08_ID_EQLOWMIDWIDTH,
1141 .type = USB_MIXER_U8,
1142 .num_channels = 16,
1143 .name = "EQ MidLow Q",
1144 },
1145 { /* EQ mid high gain */
1146 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1147 .control_id = SND_US16X08_ID_EQHIGHMIDLEVEL,
1148 .type = USB_MIXER_U8,
1149 .num_channels = 16,
1150 .name = "EQ MidHigh Volume",
1151 },
1152 { /* EQ mid high freq */
1153 .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
1154 .control_id = SND_US16X08_ID_EQHIGHMIDFREQ,
1155 .type = USB_MIXER_U8,
1156 .num_channels = 16,
1157 .name = "EQ MidHigh Frequence",
1158 },
1159 { /* EQ mid high Q */
1160 .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
1161 .control_id = SND_US16X08_ID_EQHIGHMIDWIDTH,
1162 .type = USB_MIXER_U8,
1163 .num_channels = 16,
1164 .name = "EQ MidHigh Q",
1165 },
1166 { /* EQ high gain */
1167 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1168 .control_id = SND_US16X08_ID_EQHIGHLEVEL,
1169 .type = USB_MIXER_U8,
1170 .num_channels = 16,
1171 .name = "EQ High Volume",
1172 },
1173 { /* EQ low freq */
1174 .kcontrol_new = &snd_us16x08_eq_high_freq_ctl,
1175 .control_id = SND_US16X08_ID_EQHIGHFREQ,
1176 .type = USB_MIXER_U8,
1177 .num_channels = 16,
1178 .name = "EQ High Frequence",
1179 },
1180 };
1181
1182 /* table of compressor controls */
1183 static const struct snd_us16x08_control_params comp_controls[] = {
1184 { /* Comp enable */
1185 .kcontrol_new = &snd_us16x08_compswitch_ctl,
1186 .control_id = SND_US16X08_ID_COMP_SWITCH,
1187 .type = USB_MIXER_BOOLEAN,
1188 .num_channels = 16,
1189 .name = "Compressor Switch",
1190 },
1191 { /* Comp threshold */
1192 .kcontrol_new = &snd_us16x08_comp_threshold_ctl,
1193 .control_id = SND_US16X08_ID_COMP_THRESHOLD,
1194 .type = USB_MIXER_U8,
1195 .num_channels = 16,
1196 .name = "Compressor Threshold Volume",
1197 },
1198 { /* Comp ratio */
1199 .kcontrol_new = &snd_us16x08_comp_ratio_ctl,
1200 .control_id = SND_US16X08_ID_COMP_RATIO,
1201 .type = USB_MIXER_U8,
1202 .num_channels = 16,
1203 .name = "Compressor Ratio",
1204 },
1205 { /* Comp attack */
1206 .kcontrol_new = &snd_us16x08_comp_attack_ctl,
1207 .control_id = SND_US16X08_ID_COMP_ATTACK,
1208 .type = USB_MIXER_U8,
1209 .num_channels = 16,
1210 .name = "Compressor Attack",
1211 },
1212 { /* Comp release */
1213 .kcontrol_new = &snd_us16x08_comp_release_ctl,
1214 .control_id = SND_US16X08_ID_COMP_RELEASE,
1215 .type = USB_MIXER_U8,
1216 .num_channels = 16,
1217 .name = "Compressor Release",
1218 },
1219 { /* Comp gain */
1220 .kcontrol_new = &snd_us16x08_comp_gain_ctl,
1221 .control_id = SND_US16X08_ID_COMP_GAIN,
1222 .type = USB_MIXER_U8,
1223 .num_channels = 16,
1224 .name = "Compressor Volume",
1225 },
1226 };
1227
1228 /* table of channel controls */
1229 static const struct snd_us16x08_control_params channel_controls[] = {
1230 { /* Phase */
1231 .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
1232 .control_id = SND_US16X08_ID_PHASE,
1233 .type = USB_MIXER_BOOLEAN,
1234 .num_channels = 16,
1235 .name = "Phase Switch",
1236 .default_val = 0
1237 },
1238 { /* Fader */
1239 .kcontrol_new = &snd_us16x08_ch_int_ctl,
1240 .control_id = SND_US16X08_ID_FADER,
1241 .type = USB_MIXER_U8,
1242 .num_channels = 16,
1243 .name = "Line Volume",
1244 .default_val = 127
1245 },
1246 { /* Mute */
1247 .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
1248 .control_id = SND_US16X08_ID_MUTE,
1249 .type = USB_MIXER_BOOLEAN,
1250 .num_channels = 16,
1251 .name = "Mute Switch",
1252 .default_val = 0
1253 },
1254 { /* Pan */
1255 .kcontrol_new = &snd_us16x08_pan_int_ctl,
1256 .control_id = SND_US16X08_ID_PAN,
1257 .type = USB_MIXER_U16,
1258 .num_channels = 16,
1259 .name = "Pan Left-Right Volume",
1260 .default_val = 127
1261 },
1262 };
1263
1264 /* table of master controls */
1265 static const struct snd_us16x08_control_params master_controls[] = {
1266 { /* Master */
1267 .kcontrol_new = &snd_us16x08_master_ctl,
1268 .control_id = SND_US16X08_ID_FADER,
1269 .type = USB_MIXER_U8,
1270 .num_channels = 16,
1271 .name = "Master Volume",
1272 .default_val = 127
1273 },
1274 { /* Bypass */
1275 .kcontrol_new = &snd_us16x08_bus_ctl,
1276 .control_id = SND_US16X08_ID_BYPASS,
1277 .type = USB_MIXER_BOOLEAN,
1278 .num_channels = 16,
1279 .name = "DSP Bypass Switch",
1280 .default_val = 0
1281 },
1282 { /* Buss out */
1283 .kcontrol_new = &snd_us16x08_bus_ctl,
1284 .control_id = SND_US16X08_ID_BUSS_OUT,
1285 .type = USB_MIXER_BOOLEAN,
1286 .num_channels = 16,
1287 .name = "Buss Out Switch",
1288 .default_val = 0
1289 },
1290 { /* Master mute */
1291 .kcontrol_new = &snd_us16x08_bus_ctl,
1292 .control_id = SND_US16X08_ID_MUTE,
1293 .type = USB_MIXER_BOOLEAN,
1294 .num_channels = 16,
1295 .name = "Master Mute Switch",
1296 .default_val = 0
1297 },
1298
1299 };
1300
1301 int snd_us16x08_controls_create(struct usb_mixer_interface *mixer)
1302 {
1303 int i, j;
1304 int err;
1305 struct usb_mixer_elem_info *elem;
1306 struct snd_us16x08_comp_store *comp_store;
1307 struct snd_us16x08_meter_store *meter_store;
1308 struct snd_us16x08_eq_store *eq_store;
1309
1310 /* just check for non-MIDI interface */
1311 if (mixer->hostif->desc.bInterfaceNumber == 3) {
1312
1313 /* add routing control */
1314 err = add_new_ctl(mixer, &snd_us16x08_route_ctl,
1315 SND_US16X08_ID_ROUTE, USB_MIXER_U8, 8, "Line Out Route",
1316 NULL, false, &elem);
1317 if (err < 0) {
1318 usb_audio_dbg(mixer->chip,
1319 "Failed to create route control, err:%d\n",
1320 err);
1321 return err;
1322 }
1323 for (i = 0; i < 8; i++)
1324 elem->cache_val[i] = i < 2 ? i : i + 2;
1325 elem->cached = 0xff;
1326
1327 /* create compressor mixer elements */
1328 comp_store = snd_us16x08_create_comp_store();
1329 if (!comp_store)
1330 return -ENOMEM;
1331
1332 /* add master controls */
1333 for (i = 0; i < ARRAY_SIZE(master_controls); i++) {
1334
1335 err = add_new_ctl(mixer,
1336 master_controls[i].kcontrol_new,
1337 master_controls[i].control_id,
1338 master_controls[i].type,
1339 master_controls[i].num_channels,
1340 master_controls[i].name,
1341 comp_store,
1342 i == 0, /* release comp_store only once */
1343 &elem);
1344 if (err < 0)
1345 return err;
1346 elem->cache_val[0] = master_controls[i].default_val;
1347 elem->cached = 1;
1348 }
1349
1350 /* add channel controls */
1351 for (i = 0; i < ARRAY_SIZE(channel_controls); i++) {
1352
1353 err = add_new_ctl(mixer,
1354 channel_controls[i].kcontrol_new,
1355 channel_controls[i].control_id,
1356 channel_controls[i].type,
1357 channel_controls[i].num_channels,
1358 channel_controls[i].name,
1359 comp_store,
1360 false, &elem);
1361 if (err < 0)
1362 return err;
1363 for (j = 0; j < SND_US16X08_MAX_CHANNELS; j++) {
1364 elem->cache_val[j] =
1365 channel_controls[i].default_val;
1366 }
1367 elem->cached = 0xffff;
1368 }
1369
1370 /* create eq store */
1371 eq_store = snd_us16x08_create_eq_store();
1372 if (!eq_store)
1373 return -ENOMEM;
1374
1375 /* add EQ controls */
1376 for (i = 0; i < ARRAY_SIZE(eq_controls); i++) {
1377
1378 err = add_new_ctl(mixer,
1379 eq_controls[i].kcontrol_new,
1380 eq_controls[i].control_id,
1381 eq_controls[i].type,
1382 eq_controls[i].num_channels,
1383 eq_controls[i].name,
1384 eq_store,
1385 i == 0, /* release eq_store only once */
1386 NULL);
1387 if (err < 0)
1388 return err;
1389 }
1390
1391 /* add compressor controls */
1392 for (i = 0; i < ARRAY_SIZE(comp_controls); i++) {
1393
1394 err = add_new_ctl(mixer,
1395 comp_controls[i].kcontrol_new,
1396 comp_controls[i].control_id,
1397 comp_controls[i].type,
1398 comp_controls[i].num_channels,
1399 comp_controls[i].name,
1400 comp_store,
1401 false, NULL);
1402 if (err < 0)
1403 return err;
1404 }
1405
1406 /* create meters store */
1407 meter_store = snd_us16x08_create_meter_store();
1408 if (!meter_store)
1409 return -ENOMEM;
1410
1411 /* meter function 'get' must access to compressor store
1412 * so place a reference here
1413 */
1414 meter_store->comp_store = comp_store;
1415 err = add_new_ctl(mixer, &snd_us16x08_meter_ctl,
1416 SND_US16X08_ID_METER, USB_MIXER_U16, 0, "Level Meter",
1417 meter_store, true, NULL);
1418 if (err < 0)
1419 return err;
1420 }
1421
1422 return 0;
1423 }
1424
Linux with added FPC-III support