1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Tascam US-16x08 ALSA driver
4 *
5 * Copyright (c) 2016 by Detlef Urban (onkel@paraair.de)
6 */
7
8 #include <linux/slab.h>
9 #include <linux/usb.h>
10 #include <linux/usb/audio-v2.h>
11
12 #include <sound/core.h>
13 #include <sound/control.h>
14
15 #include "usbaudio.h"
16 #include "mixer.h"
17 #include "helper.h"
18
19 #include "mixer_us16x08.h"
20
21 /* USB control message templates */
22 static const char route_msg[] = {
23 0x61,
24 0x02,
25 0x03, /* input from master (0x02) or input from computer bus (0x03) */
26 0x62,
27 0x02,
28 0x01, /* input index (0x01/0x02 eq. left/right) or bus (0x01-0x08) */
29 0x41,
30 0x01,
31 0x61,
32 0x02,
33 0x01,
34 0x62,
35 0x02,
36 0x01, /* output index (0x01-0x08) */
37 0x42,
38 0x01,
39 0x43,
40 0x01,
41 0x00,
42 0x00
43 };
44
45 static const char mix_init_msg1[] = {
46 0x71, 0x01, 0x00, 0x00
47 };
48
49 static const char mix_init_msg2[] = {
50 0x62, 0x02, 0x00, 0x61, 0x02, 0x04, 0xb1, 0x01, 0x00, 0x00
51 };
52
53 static const char mix_msg_in[] = {
54 /* default message head, equal to all mixers */
55 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
56 0x81, /* 0x06: Controller ID */
57 0x02, /* 0x07: */
58 0x00, /* 0x08: Value of common mixer */
59 0x00,
60 0x00
61 };
62
63 static const char mix_msg_out[] = {
64 /* default message head, equal to all mixers */
65 0x61, 0x02, 0x02, 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 bypass_msg_out[] = {
74 0x45,
75 0x02,
76 0x01, /* on/off flag */
77 0x00,
78 0x00
79 };
80
81 static const char bus_msg_out[] = {
82 0x44,
83 0x02,
84 0x01, /* on/off flag */
85 0x00,
86 0x00
87 };
88
89 static const char comp_msg[] = {
90 /* default message head, equal to all mixers */
91 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
92 0x91,
93 0x02,
94 0xf0, /* 0x08: Threshold db (8) (e0 ... 00) (+-0dB -- -32dB) x-32 */
95 0x92,
96 0x02,
97 0x0a, /* 0x0b: Ratio (0a,0b,0d,0f,11,14,19,1e,23,28,32,3c,50,a0,ff) */
98 0x93,
99 0x02,
100 0x02, /* 0x0e: Attack (0x02 ... 0xc0) (2ms ... 200ms) */
101 0x94,
102 0x02,
103 0x01, /* 0x11: Release (0x01 ... 0x64) (10ms ... 1000ms) x*10 */
104 0x95,
105 0x02,
106 0x03, /* 0x14: gain (0 ... 20) (0dB .. 20dB) */
107 0x96,
108 0x02,
109 0x01,
110 0x97,
111 0x02,
112 0x01, /* 0x1a: main Comp switch (0 ... 1) (off ... on)) */
113 0x00,
114 0x00
115 };
116
117 static const char eqs_msq[] = {
118 /* default message head, equal to all mixers */
119 0x61, 0x02, 0x04, 0x62, 0x02, 0x01,
120 0x51, /* 0x06: Controller ID */
121 0x02,
122 0x04, /* 0x08: EQ set num (0x01..0x04) (LOW, LOWMID, HIGHMID, HIGH)) */
123 0x52,
124 0x02,
125 0x0c, /* 0x0b: value dB (0 ... 12) (-12db .. +12db) x-6 */
126 0x53,
127 0x02,
128 0x0f, /* 0x0e: value freq (32-47) (1.7kHz..18kHz) */
129 0x54,
130 0x02,
131 0x02, /* 0x11: band width (0-6) (Q16-Q0.25) 2^x/4 (EQ xxMID only) */
132 0x55,
133 0x02,
134 0x01, /* 0x14: main EQ switch (0 ... 1) (off ... on)) */
135 0x00,
136 0x00
137 };
138
139 /* compressor ratio map */
140 static const char ratio_map[] = {
141 0x0a, 0x0b, 0x0d, 0x0f, 0x11, 0x14, 0x19, 0x1e,
142 0x23, 0x28, 0x32, 0x3c, 0x50, 0xa0, 0xff
143 };
144
145 /* route enumeration names */
146 static const char *const route_names[] = {
147 "Master Left", "Master Right", "Output 1", "Output 2", "Output 3",
148 "Output 4", "Output 5", "Output 6", "Output 7", "Output 8",
149 };
150
151 static int snd_us16x08_recv_urb(struct snd_usb_audio *chip,
152 unsigned char *buf, int size)
153 {
154
155 mutex_lock(&chip->mutex);
156 snd_usb_ctl_msg(chip->dev,
157 usb_rcvctrlpipe(chip->dev, 0),
158 SND_US16X08_URB_METER_REQUEST,
159 SND_US16X08_URB_METER_REQUESTTYPE, 0, 0, buf, size);
160 mutex_unlock(&chip->mutex);
161 return 0;
162 }
163
164 /* wrapper function to send prepared URB buffer to usb device. Return an error
165 * code if something went wrong
166 */
167 static int snd_us16x08_send_urb(struct snd_usb_audio *chip, char *buf, int size)
168 {
169 return snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0),
170 SND_US16X08_URB_REQUEST, SND_US16X08_URB_REQUESTTYPE,
171 0, 0, buf, size);
172 }
173
174 static int snd_us16x08_route_info(struct snd_kcontrol *kcontrol,
175 struct snd_ctl_elem_info *uinfo)
176 {
177 return snd_ctl_enum_info(uinfo, 1, 10, route_names);
178 }
179
180 static int snd_us16x08_route_get(struct snd_kcontrol *kcontrol,
181 struct snd_ctl_elem_value *ucontrol)
182 {
183 struct usb_mixer_elem_info *elem = kcontrol->private_data;
184 int index = ucontrol->id.index;
185
186 /* route has no bias */
187 ucontrol->value.enumerated.item[0] = elem->cache_val[index];
188
189 return 0;
190 }
191
192 static int snd_us16x08_route_put(struct snd_kcontrol *kcontrol,
193 struct snd_ctl_elem_value *ucontrol)
194 {
195 struct usb_mixer_elem_info *elem = kcontrol->private_data;
196 struct snd_usb_audio *chip = elem->head.mixer->chip;
197 int index = ucontrol->id.index;
198 char buf[sizeof(route_msg)];
199 int val, val_org, err;
200
201 /* get the new value (no bias for routes) */
202 val = ucontrol->value.enumerated.item[0];
203
204 /* sanity check */
205 if (val < 0 || val > 9)
206 return -EINVAL;
207
208 /* prepare the message buffer from template */
209 memcpy(buf, route_msg, sizeof(route_msg));
210
211 if (val < 2) {
212 /* input comes from a master channel */
213 val_org = val;
214 buf[2] = 0x02;
215 } else {
216 /* input comes from a computer channel */
217 buf[2] = 0x03;
218 val_org = val - 2;
219 }
220
221 /* place new route selection in URB message */
222 buf[5] = (unsigned char) (val_org & 0x0f) + 1;
223 /* place route selector in URB message */
224 buf[13] = index + 1;
225
226 err = snd_us16x08_send_urb(chip, buf, sizeof(route_msg));
227
228 if (err > 0) {
229 elem->cached |= 1 << index;
230 elem->cache_val[index] = val;
231 } else {
232 usb_audio_dbg(chip, "Failed to set routing, err:%d\n", err);
233 }
234
235 return err > 0 ? 1 : 0;
236 }
237
238 static int snd_us16x08_master_info(struct snd_kcontrol *kcontrol,
239 struct snd_ctl_elem_info *uinfo)
240 {
241 uinfo->count = 1;
242 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
243 uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
244 uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
245 uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
246 return 0;
247 }
248
249 static int snd_us16x08_master_get(struct snd_kcontrol *kcontrol,
250 struct snd_ctl_elem_value *ucontrol)
251 {
252 struct usb_mixer_elem_info *elem = kcontrol->private_data;
253 int index = ucontrol->id.index;
254
255 ucontrol->value.integer.value[0] = elem->cache_val[index];
256
257 return 0;
258 }
259
260 static int snd_us16x08_master_put(struct snd_kcontrol *kcontrol,
261 struct snd_ctl_elem_value *ucontrol)
262 {
263 struct usb_mixer_elem_info *elem = kcontrol->private_data;
264 struct snd_usb_audio *chip = elem->head.mixer->chip;
265 char buf[sizeof(mix_msg_out)];
266 int val, err;
267 int index = ucontrol->id.index;
268
269 /* new control value incl. bias*/
270 val = ucontrol->value.integer.value[0];
271
272 /* sanity check */
273 if (val < SND_US16X08_KCMIN(kcontrol)
274 || val > SND_US16X08_KCMAX(kcontrol))
275 return -EINVAL;
276
277 /* prepare the message buffer from template */
278 memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
279
280 buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
281 buf[6] = elem->head.id;
282
283 /* place channel selector in URB message */
284 buf[5] = index + 1;
285 err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
286
287 if (err > 0) {
288 elem->cached |= 1 << index;
289 elem->cache_val[index] = val;
290 } else {
291 usb_audio_dbg(chip, "Failed to set master, err:%d\n", err);
292 }
293
294 return err > 0 ? 1 : 0;
295 }
296
297 static int snd_us16x08_bus_put(struct snd_kcontrol *kcontrol,
298 struct snd_ctl_elem_value *ucontrol)
299 {
300 struct usb_mixer_elem_info *elem = kcontrol->private_data;
301 struct snd_usb_audio *chip = elem->head.mixer->chip;
302 char buf[sizeof(mix_msg_out)];
303 int val, err = 0;
304
305 val = ucontrol->value.integer.value[0];
306
307 /* prepare the message buffer from template */
308 switch (elem->head.id) {
309 case SND_US16X08_ID_BYPASS:
310 memcpy(buf, bypass_msg_out, sizeof(bypass_msg_out));
311 buf[2] = val;
312 err = snd_us16x08_send_urb(chip, buf, sizeof(bypass_msg_out));
313 break;
314 case SND_US16X08_ID_BUSS_OUT:
315 memcpy(buf, bus_msg_out, sizeof(bus_msg_out));
316 buf[2] = val;
317 err = snd_us16x08_send_urb(chip, buf, sizeof(bus_msg_out));
318 break;
319 case SND_US16X08_ID_MUTE:
320 memcpy(buf, mix_msg_out, sizeof(mix_msg_out));
321 buf[8] = val;
322 buf[6] = elem->head.id;
323 buf[5] = 1;
324 err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out));
325 break;
326 }
327
328 if (err > 0) {
329 elem->cached |= 1;
330 elem->cache_val[0] = val;
331 } else {
332 usb_audio_dbg(chip, "Failed to set bus parameter, err:%d\n", err);
333 }
334
335 return err > 0 ? 1 : 0;
336 }
337
338 static int snd_us16x08_bus_get(struct snd_kcontrol *kcontrol,
339 struct snd_ctl_elem_value *ucontrol)
340 {
341 struct usb_mixer_elem_info *elem = kcontrol->private_data;
342
343 switch (elem->head.id) {
344 case SND_US16X08_ID_BUSS_OUT:
345 ucontrol->value.integer.value[0] = elem->cache_val[0];
346 break;
347 case SND_US16X08_ID_BYPASS:
348 ucontrol->value.integer.value[0] = elem->cache_val[0];
349 break;
350 case SND_US16X08_ID_MUTE:
351 ucontrol->value.integer.value[0] = elem->cache_val[0];
352 break;
353 }
354
355 return 0;
356 }
357
358 /* gets a current mixer value from common store */
359 static int snd_us16x08_channel_get(struct snd_kcontrol *kcontrol,
360 struct snd_ctl_elem_value *ucontrol)
361 {
362 struct usb_mixer_elem_info *elem = kcontrol->private_data;
363 int index = ucontrol->id.index;
364
365 ucontrol->value.integer.value[0] = elem->cache_val[index];
366
367 return 0;
368 }
369
370 static int snd_us16x08_channel_put(struct snd_kcontrol *kcontrol,
371 struct snd_ctl_elem_value *ucontrol)
372 {
373 struct usb_mixer_elem_info *elem = kcontrol->private_data;
374 struct snd_usb_audio *chip = elem->head.mixer->chip;
375 char buf[sizeof(mix_msg_in)];
376 int val, err;
377 int index = ucontrol->id.index;
378
379 val = ucontrol->value.integer.value[0];
380
381 /* sanity check */
382 if (val < SND_US16X08_KCMIN(kcontrol)
383 || val > SND_US16X08_KCMAX(kcontrol))
384 return -EINVAL;
385
386 /* prepare URB message from template */
387 memcpy(buf, mix_msg_in, sizeof(mix_msg_in));
388
389 /* add the bias to the new value */
390 buf[8] = val - SND_US16X08_KCBIAS(kcontrol);
391 buf[6] = elem->head.id;
392 buf[5] = index + 1;
393
394 err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_in));
395
396 if (err > 0) {
397 elem->cached |= 1 << index;
398 elem->cache_val[index] = val;
399 } else {
400 usb_audio_dbg(chip, "Failed to set channel, err:%d\n", err);
401 }
402
403 return err > 0 ? 1 : 0;
404 }
405
406 static int snd_us16x08_mix_info(struct snd_kcontrol *kcontrol,
407 struct snd_ctl_elem_info *uinfo)
408 {
409 uinfo->count = 1;
410 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
411 uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol);
412 uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol);
413 uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol);
414 return 0;
415 }
416
417 static int snd_us16x08_comp_get(struct snd_kcontrol *kcontrol,
418 struct snd_ctl_elem_value *ucontrol)
419 {
420 struct usb_mixer_elem_info *elem = kcontrol->private_data;
421 struct snd_us16x08_comp_store *store = elem->private_data;
422 int index = ucontrol->id.index;
423 int val_idx = COMP_STORE_IDX(elem->head.id);
424
425 ucontrol->value.integer.value[0] = store->val[val_idx][index];
426
427 return 0;
428 }
429
430 static int snd_us16x08_comp_put(struct snd_kcontrol *kcontrol,
431 struct snd_ctl_elem_value *ucontrol)
432 {
433 struct usb_mixer_elem_info *elem = kcontrol->private_data;
434 struct snd_usb_audio *chip = elem->head.mixer->chip;
435 struct snd_us16x08_comp_store *store = elem->private_data;
436 int index = ucontrol->id.index;
437 char buf[sizeof(comp_msg)];
438 int val_idx, val;
439 int err;
440
441 val = ucontrol->value.integer.value[0];
442
443 /* sanity check */
444 if (val < SND_US16X08_KCMIN(kcontrol)
445 || val > SND_US16X08_KCMAX(kcontrol))
446 return -EINVAL;
447
448 /* new control value incl. bias*/
449 val_idx = elem->head.id - SND_US16X08_ID_COMP_BASE;
450
451 store->val[val_idx][index] = ucontrol->value.integer.value[0];
452
453 /* prepare compressor URB message from template */
454 memcpy(buf, comp_msg, sizeof(comp_msg));
455
456 /* place comp values in message buffer watch bias! */
457 buf[8] = store->val[
458 COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][index]
459 - SND_US16X08_COMP_THRESHOLD_BIAS;
460 buf[11] = ratio_map[store->val[
461 COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][index]];
462 buf[14] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][index]
463 + SND_US16X08_COMP_ATTACK_BIAS;
464 buf[17] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][index]
465 + SND_US16X08_COMP_RELEASE_BIAS;
466 buf[20] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][index];
467 buf[26] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][index];
468
469 /* place channel selector in message buffer */
470 buf[5] = index + 1;
471
472 err = snd_us16x08_send_urb(chip, buf, sizeof(comp_msg));
473
474 if (err > 0) {
475 elem->cached |= 1 << index;
476 elem->cache_val[index] = val;
477 } else {
478 usb_audio_dbg(chip, "Failed to set compressor, err:%d\n", err);
479 }
480
481 return 1;
482 }
483
484 static int snd_us16x08_eqswitch_get(struct snd_kcontrol *kcontrol,
485 struct snd_ctl_elem_value *ucontrol)
486 {
487 int val;
488 struct usb_mixer_elem_info *elem = kcontrol->private_data;
489 struct snd_us16x08_eq_store *store = elem->private_data;
490 int index = ucontrol->id.index;
491
492 /* get low switch from cache is enough, cause all bands are together */
493 val = store->val[EQ_STORE_BAND_IDX(elem->head.id)]
494 [EQ_STORE_PARAM_IDX(elem->head.id)][index];
495 ucontrol->value.integer.value[0] = val;
496
497 return 0;
498 }
499
500 static int snd_us16x08_eqswitch_put(struct snd_kcontrol *kcontrol,
501 struct snd_ctl_elem_value *ucontrol)
502 {
503 struct usb_mixer_elem_info *elem = kcontrol->private_data;
504 struct snd_usb_audio *chip = elem->head.mixer->chip;
505 struct snd_us16x08_eq_store *store = elem->private_data;
506 int index = ucontrol->id.index;
507 char buf[sizeof(eqs_msq)];
508 int val, err = 0;
509 int b_idx;
510
511 /* new control value incl. bias*/
512 val = ucontrol->value.integer.value[0] + SND_US16X08_KCBIAS(kcontrol);
513
514 /* prepare URB message from EQ template */
515 memcpy(buf, eqs_msq, sizeof(eqs_msq));
516
517 /* place channel index in URB message */
518 buf[5] = index + 1;
519 for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
520 /* all four EQ bands have to be enabled/disabled in once */
521 buf[20] = val;
522 buf[17] = store->val[b_idx][2][index];
523 buf[14] = store->val[b_idx][1][index];
524 buf[11] = store->val[b_idx][0][index];
525 buf[8] = b_idx + 1;
526 err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
527 if (err < 0)
528 break;
529 store->val[b_idx][3][index] = val;
530 msleep(15);
531 }
532
533 if (err > 0) {
534 elem->cached |= 1 << index;
535 elem->cache_val[index] = val;
536 } else {
537 usb_audio_dbg(chip, "Failed to set eq switch, err:%d\n", err);
538 }
539
540 return 1;
541 }
542
543 static int snd_us16x08_eq_get(struct snd_kcontrol *kcontrol,
544 struct snd_ctl_elem_value *ucontrol)
545 {
546 int val;
547 struct usb_mixer_elem_info *elem = kcontrol->private_data;
548 struct snd_us16x08_eq_store *store = elem->private_data;
549 int index = ucontrol->id.index;
550 int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
551 int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
552
553 val = store->val[b_idx][p_idx][index];
554
555 ucontrol->value.integer.value[0] = val;
556
557 return 0;
558 }
559
560 static int snd_us16x08_eq_put(struct snd_kcontrol *kcontrol,
561 struct snd_ctl_elem_value *ucontrol)
562 {
563 struct usb_mixer_elem_info *elem = kcontrol->private_data;
564 struct snd_usb_audio *chip = elem->head.mixer->chip;
565 struct snd_us16x08_eq_store *store = elem->private_data;
566 int index = ucontrol->id.index;
567 char buf[sizeof(eqs_msq)];
568 int val, err;
569 int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1;
570 int p_idx = EQ_STORE_PARAM_IDX(elem->head.id);
571
572 val = ucontrol->value.integer.value[0];
573
574 /* sanity check */
575 if (val < SND_US16X08_KCMIN(kcontrol)
576 || val > SND_US16X08_KCMAX(kcontrol))
577 return -EINVAL;
578
579 /* copy URB buffer from EQ template */
580 memcpy(buf, eqs_msq, sizeof(eqs_msq));
581
582 store->val[b_idx][p_idx][index] = val;
583 buf[20] = store->val[b_idx][3][index];
584 buf[17] = store->val[b_idx][2][index];
585 buf[14] = store->val[b_idx][1][index];
586 buf[11] = store->val[b_idx][0][index];
587
588 /* place channel index in URB buffer */
589 buf[5] = index + 1;
590
591 /* place EQ band in URB buffer */
592 buf[8] = b_idx + 1;
593
594 err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq));
595
596 if (err > 0) {
597 /* store new value in EQ band cache */
598 elem->cached |= 1 << index;
599 elem->cache_val[index] = val;
600 } else {
601 usb_audio_dbg(chip, "Failed to set eq param, err:%d\n", err);
602 }
603
604 return 1;
605 }
606
607 static int snd_us16x08_meter_info(struct snd_kcontrol *kcontrol,
608 struct snd_ctl_elem_info *uinfo)
609 {
610 uinfo->count = 34;
611 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
612 uinfo->value.integer.max = 0x7FFF;
613 uinfo->value.integer.min = 0;
614
615 return 0;
616 }
617
618 /* calculate compressor index for reduction level request */
619 static int snd_get_meter_comp_index(struct snd_us16x08_meter_store *store)
620 {
621 int ret;
622
623 /* any channel active */
624 if (store->comp_active_index) {
625 /* check for stereo link */
626 if (store->comp_active_index & 0x20) {
627 /* reset comp_index to left channel*/
628 if (store->comp_index -
629 store->comp_active_index > 1)
630 store->comp_index =
631 store->comp_active_index;
632
633 ret = store->comp_index++ & 0x1F;
634 } else {
635 /* no stereo link */
636 ret = store->comp_active_index;
637 }
638 } else {
639 /* skip channels with no compressor active */
640 while (store->comp_index <= SND_US16X08_MAX_CHANNELS
641 && !store->comp_store->val[
642 COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)]
643 [store->comp_index - 1]) {
644 store->comp_index++;
645 }
646 ret = store->comp_index++;
647 if (store->comp_index > SND_US16X08_MAX_CHANNELS)
648 store->comp_index = 1;
649 }
650 return ret;
651 }
652
653 /* retrieve the meter level values from URB message */
654 static void get_meter_levels_from_urb(int s,
655 struct snd_us16x08_meter_store *store,
656 u8 *meter_urb)
657 {
658 int val = MUC2(meter_urb, s) + (MUC3(meter_urb, s) << 8);
659
660 if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
661 MUA2(meter_urb, s) == 0x04 && MUB0(meter_urb, s) == 0x62) {
662 if (MUC0(meter_urb, s) == 0x72)
663 store->meter_level[MUB2(meter_urb, s) - 1] = val;
664 if (MUC0(meter_urb, s) == 0xb2)
665 store->comp_level[MUB2(meter_urb, s) - 1] = val;
666 }
667 if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 &&
668 MUA2(meter_urb, s) == 0x02 && MUB0(meter_urb, s) == 0x62)
669 store->master_level[MUB2(meter_urb, s) - 1] = val;
670 }
671
672 /* Function to retrieve current meter values from the device.
673 *
674 * The device needs to be polled for meter values with an initial
675 * requests. It will return with a sequence of different meter value
676 * packages. The first request (case 0:) initiate this meter response sequence.
677 * After the third response, an additional request can be placed,
678 * to retrieve compressor reduction level value for given channel. This round
679 * trip channel selector will skip all inactive compressors.
680 * A mixer can interrupt this round-trip by selecting one ore two (stereo-link)
681 * specific channels.
682 */
683 static int snd_us16x08_meter_get(struct snd_kcontrol *kcontrol,
684 struct snd_ctl_elem_value *ucontrol)
685 {
686 int i, set;
687 struct usb_mixer_elem_info *elem = kcontrol->private_data;
688 struct snd_usb_audio *chip = elem->head.mixer->chip;
689 struct snd_us16x08_meter_store *store = elem->private_data;
690 u8 meter_urb[64];
691
692 switch (kcontrol->private_value) {
693 case 0: {
694 char tmp[sizeof(mix_init_msg1)];
695
696 memcpy(tmp, mix_init_msg1, sizeof(mix_init_msg1));
697 snd_us16x08_send_urb(chip, tmp, 4);
698 snd_us16x08_recv_urb(chip, meter_urb,
699 sizeof(meter_urb));
700 kcontrol->private_value++;
701 break;
702 }
703 case 1:
704 snd_us16x08_recv_urb(chip, meter_urb,
705 sizeof(meter_urb));
706 kcontrol->private_value++;
707 break;
708 case 2:
709 snd_us16x08_recv_urb(chip, meter_urb,
710 sizeof(meter_urb));
711 kcontrol->private_value++;
712 break;
713 case 3: {
714 char tmp[sizeof(mix_init_msg2)];
715
716 memcpy(tmp, mix_init_msg2, sizeof(mix_init_msg2));
717 tmp[2] = snd_get_meter_comp_index(store);
718 snd_us16x08_send_urb(chip, tmp, 10);
719 snd_us16x08_recv_urb(chip, meter_urb,
720 sizeof(meter_urb));
721 kcontrol->private_value = 0;
722 break;
723 }
724 }
725
726 for (set = 0; set < 6; set++)
727 get_meter_levels_from_urb(set, store, meter_urb);
728
729 for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
730 ucontrol->value.integer.value[i] =
731 store ? store->meter_level[i] : 0;
732 }
733
734 ucontrol->value.integer.value[i++] = store ? store->master_level[0] : 0;
735 ucontrol->value.integer.value[i++] = store ? store->master_level[1] : 0;
736
737 for (i = 2; i < SND_US16X08_MAX_CHANNELS + 2; i++)
738 ucontrol->value.integer.value[i + SND_US16X08_MAX_CHANNELS] =
739 store ? store->comp_level[i - 2] : 0;
740
741 return 1;
742 }
743
744 static int snd_us16x08_meter_put(struct snd_kcontrol *kcontrol,
745 struct snd_ctl_elem_value *ucontrol)
746 {
747 struct usb_mixer_elem_info *elem = kcontrol->private_data;
748 struct snd_us16x08_meter_store *store = elem->private_data;
749 int val;
750
751 val = ucontrol->value.integer.value[0];
752
753 /* sanity check */
754 if (val < 0 || val >= SND_US16X08_MAX_CHANNELS)
755 return -EINVAL;
756
757 store->comp_active_index = val;
758 store->comp_index = val;
759
760 return 1;
761 }
762
763 static const struct snd_kcontrol_new snd_us16x08_ch_boolean_ctl = {
764 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
765 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
766 .count = 16,
767 .info = snd_us16x08_switch_info,
768 .get = snd_us16x08_channel_get,
769 .put = snd_us16x08_channel_put,
770 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
771 };
772
773 static const struct snd_kcontrol_new snd_us16x08_ch_int_ctl = {
774 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
775 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
776 .count = 16,
777 .info = snd_us16x08_mix_info,
778 .get = snd_us16x08_channel_get,
779 .put = snd_us16x08_channel_put,
780 .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
781 };
782
783 static const struct snd_kcontrol_new snd_us16x08_pan_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, 255)
791 };
792
793 static const struct snd_kcontrol_new snd_us16x08_master_ctl = {
794 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
795 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
796 .count = 1,
797 .info = snd_us16x08_master_info,
798 .get = snd_us16x08_master_get,
799 .put = snd_us16x08_master_put,
800 .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
801 };
802
803 static const struct snd_kcontrol_new snd_us16x08_route_ctl = {
804 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
805 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
806 .count = 8,
807 .info = snd_us16x08_route_info,
808 .get = snd_us16x08_route_get,
809 .put = snd_us16x08_route_put,
810 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 9)
811 };
812
813 static const struct snd_kcontrol_new snd_us16x08_bus_ctl = {
814 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
815 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
816 .count = 1,
817 .info = snd_us16x08_switch_info,
818 .get = snd_us16x08_bus_get,
819 .put = snd_us16x08_bus_put,
820 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
821 };
822
823 static const struct snd_kcontrol_new snd_us16x08_compswitch_ctl = {
824 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
825 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
826 .count = 16,
827 .info = snd_us16x08_switch_info,
828 .get = snd_us16x08_comp_get,
829 .put = snd_us16x08_comp_put,
830 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
831 };
832
833 static const struct snd_kcontrol_new snd_us16x08_comp_threshold_ctl = {
834 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
835 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
836 .count = 16,
837 .info = snd_us16x08_mix_info,
838 .get = snd_us16x08_comp_get,
839 .put = snd_us16x08_comp_put,
840 .private_value = SND_US16X08_KCSET(SND_US16X08_COMP_THRESHOLD_BIAS, 1,
841 0, 0x20)
842 };
843
844 static const struct snd_kcontrol_new snd_us16x08_comp_ratio_ctl = {
845 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
846 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
847 .count = 16,
848 .info = snd_us16x08_mix_info,
849 .get = snd_us16x08_comp_get,
850 .put = snd_us16x08_comp_put,
851 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0,
852 sizeof(ratio_map) - 1), /*max*/
853 };
854
855 static const struct snd_kcontrol_new snd_us16x08_comp_gain_ctl = {
856 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
857 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
858 .count = 16,
859 .info = snd_us16x08_mix_info,
860 .get = snd_us16x08_comp_get,
861 .put = snd_us16x08_comp_put,
862 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x14)
863 };
864
865 static const struct snd_kcontrol_new snd_us16x08_comp_attack_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 =
873 SND_US16X08_KCSET(SND_US16X08_COMP_ATTACK_BIAS, 1, 0, 0xc6),
874 };
875
876 static const struct snd_kcontrol_new snd_us16x08_comp_release_ctl = {
877 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
878 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
879 .count = 16,
880 .info = snd_us16x08_mix_info,
881 .get = snd_us16x08_comp_get,
882 .put = snd_us16x08_comp_put,
883 .private_value =
884 SND_US16X08_KCSET(SND_US16X08_COMP_RELEASE_BIAS, 1, 0, 0x63),
885 };
886
887 static const struct snd_kcontrol_new snd_us16x08_eq_gain_ctl = {
888 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
889 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
890 .count = 16,
891 .info = snd_us16x08_mix_info,
892 .get = snd_us16x08_eq_get,
893 .put = snd_us16x08_eq_put,
894 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 24),
895 };
896
897 static const struct snd_kcontrol_new snd_us16x08_eq_low_freq_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, 0x1F),
905 };
906
907 static const struct snd_kcontrol_new snd_us16x08_eq_mid_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, 0x3F)
915 };
916
917 static const struct snd_kcontrol_new snd_us16x08_eq_mid_width_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, 0x06)
925 };
926
927 static const struct snd_kcontrol_new snd_us16x08_eq_high_freq_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 =
935 SND_US16X08_KCSET(SND_US16X08_EQ_HIGHFREQ_BIAS, 1, 0, 0x1F)
936 };
937
938 static const struct snd_kcontrol_new snd_us16x08_eq_switch_ctl = {
939 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
940 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
941 .count = 16,
942 .info = snd_us16x08_switch_info,
943 .get = snd_us16x08_eqswitch_get,
944 .put = snd_us16x08_eqswitch_put,
945 .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
946 };
947
948 static const struct snd_kcontrol_new snd_us16x08_meter_ctl = {
949 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
950 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
951 .count = 1,
952 .info = snd_us16x08_meter_info,
953 .get = snd_us16x08_meter_get,
954 .put = snd_us16x08_meter_put
955 };
956
957 /* control store preparation */
958
959 /* setup compressor store and assign default value */
960 static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void)
961 {
962 int i;
963 struct snd_us16x08_comp_store *tmp;
964
965 tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
966 if (!tmp)
967 return NULL;
968
969 for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
970 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][i]
971 = 0x20;
972 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][i] = 0x00;
973 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][i] = 0x00;
974 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][i] = 0x00;
975 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][i] = 0x00;
976 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][i] = 0x00;
977 }
978 return tmp;
979 }
980
981 /* setup EQ store and assign default values */
982 static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(void)
983 {
984 int i, b_idx;
985 struct snd_us16x08_eq_store *tmp;
986
987 tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
988 if (!tmp)
989 return NULL;
990
991 for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
992 for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
993 tmp->val[b_idx][0][i] = 0x0c;
994 tmp->val[b_idx][3][i] = 0x00;
995 switch (b_idx) {
996 case 0: /* EQ Low */
997 tmp->val[b_idx][1][i] = 0x05;
998 tmp->val[b_idx][2][i] = 0xff;
999 break;
1000 case 1: /* EQ Mid low */
1001 tmp->val[b_idx][1][i] = 0x0e;
1002 tmp->val[b_idx][2][i] = 0x02;
1003 break;
1004 case 2: /* EQ Mid High */
1005 tmp->val[b_idx][1][i] = 0x1b;
1006 tmp->val[b_idx][2][i] = 0x02;
1007 break;
1008 case 3: /* EQ High */
1009 tmp->val[b_idx][1][i] = 0x2f
1010 - SND_US16X08_EQ_HIGHFREQ_BIAS;
1011 tmp->val[b_idx][2][i] = 0xff;
1012 break;
1013 }
1014 }
1015 }
1016 return tmp;
1017 }
1018
1019 static struct snd_us16x08_meter_store *snd_us16x08_create_meter_store(void)
1020 {
1021 struct snd_us16x08_meter_store *tmp;
1022
1023 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1024 if (!tmp)
1025 return NULL;
1026 tmp->comp_index = 1;
1027 tmp->comp_active_index = 0;
1028 return tmp;
1029 }
1030
1031 /* release elem->private_free as well; called only once for each *_store */
1032 static void elem_private_free(struct snd_kcontrol *kctl)
1033 {
1034 struct usb_mixer_elem_info *elem = kctl->private_data;
1035
1036 if (elem)
1037 kfree(elem->private_data);
1038 kfree(elem);
1039 kctl->private_data = NULL;
1040 }
1041
1042 static int add_new_ctl(struct usb_mixer_interface *mixer,
1043 const struct snd_kcontrol_new *ncontrol,
1044 int index, int val_type, int channels,
1045 const char *name, void *opt,
1046 bool do_private_free,
1047 struct usb_mixer_elem_info **elem_ret)
1048 {
1049 struct snd_kcontrol *kctl;
1050 struct usb_mixer_elem_info *elem;
1051 int err;
1052
1053 usb_audio_dbg(mixer->chip, "us16x08 add mixer %s\n", name);
1054
1055 elem = kzalloc(sizeof(*elem), GFP_KERNEL);
1056 if (!elem)
1057 return -ENOMEM;
1058
1059 elem->head.mixer = mixer;
1060 elem->head.resume = NULL;
1061 elem->control = 0;
1062 elem->idx_off = 0;
1063 elem->head.id = index;
1064 elem->val_type = val_type;
1065 elem->channels = channels;
1066 elem->private_data = opt;
1067
1068 kctl = snd_ctl_new1(ncontrol, elem);
1069 if (!kctl) {
1070 kfree(elem);
1071 return -ENOMEM;
1072 }
1073
1074 if (do_private_free)
1075 kctl->private_free = elem_private_free;
1076 else
1077 kctl->private_free = snd_usb_mixer_elem_free;
1078
1079 strscpy(kctl->id.name, name, sizeof(kctl->id.name));
1080
1081 err = snd_usb_mixer_add_control(&elem->head, kctl);
1082 if (err < 0)
1083 return err;
1084
1085 if (elem_ret)
1086 *elem_ret = elem;
1087
1088 return 0;
1089 }
1090
1091 /* table of EQ controls */
1092 static const struct snd_us16x08_control_params eq_controls[] = {
1093 { /* EQ switch */
1094 .kcontrol_new = &snd_us16x08_eq_switch_ctl,
1095 .control_id = SND_US16X08_ID_EQENABLE,
1096 .type = USB_MIXER_BOOLEAN,
1097 .num_channels = 16,
1098 .name = "EQ Switch",
1099 },
1100 { /* EQ low gain */
1101 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1102 .control_id = SND_US16X08_ID_EQLOWLEVEL,
1103 .type = USB_MIXER_U8,
1104 .num_channels = 16,
1105 .name = "EQ Low Volume",
1106 },
1107 { /* EQ low freq */
1108 .kcontrol_new = &snd_us16x08_eq_low_freq_ctl,
1109 .control_id = SND_US16X08_ID_EQLOWFREQ,
1110 .type = USB_MIXER_U8,
1111 .num_channels = 16,
1112 .name = "EQ Low Frequency",
1113 },
1114 { /* EQ mid low gain */
1115 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1116 .control_id = SND_US16X08_ID_EQLOWMIDLEVEL,
1117 .type = USB_MIXER_U8,
1118 .num_channels = 16,
1119 .name = "EQ MidLow Volume",
1120 },
1121 { /* EQ mid low freq */
1122 .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
1123 .control_id = SND_US16X08_ID_EQLOWMIDFREQ,
1124 .type = USB_MIXER_U8,
1125 .num_channels = 16,
1126 .name = "EQ MidLow Frequency",
1127 },
1128 { /* EQ mid low Q */
1129 .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
1130 .control_id = SND_US16X08_ID_EQLOWMIDWIDTH,
1131 .type = USB_MIXER_U8,
1132 .num_channels = 16,
1133 .name = "EQ MidLow Q",
1134 },
1135 { /* EQ mid high gain */
1136 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1137 .control_id = SND_US16X08_ID_EQHIGHMIDLEVEL,
1138 .type = USB_MIXER_U8,
1139 .num_channels = 16,
1140 .name = "EQ MidHigh Volume",
1141 },
1142 { /* EQ mid high freq */
1143 .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
1144 .control_id = SND_US16X08_ID_EQHIGHMIDFREQ,
1145 .type = USB_MIXER_U8,
1146 .num_channels = 16,
1147 .name = "EQ MidHigh Frequency",
1148 },
1149 { /* EQ mid high Q */
1150 .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
1151 .control_id = SND_US16X08_ID_EQHIGHMIDWIDTH,
1152 .type = USB_MIXER_U8,
1153 .num_channels = 16,
1154 .name = "EQ MidHigh Q",
1155 },
1156 { /* EQ high gain */
1157 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1158 .control_id = SND_US16X08_ID_EQHIGHLEVEL,
1159 .type = USB_MIXER_U8,
1160 .num_channels = 16,
1161 .name = "EQ High Volume",
1162 },
1163 { /* EQ low freq */
1164 .kcontrol_new = &snd_us16x08_eq_high_freq_ctl,
1165 .control_id = SND_US16X08_ID_EQHIGHFREQ,
1166 .type = USB_MIXER_U8,
1167 .num_channels = 16,
1168 .name = "EQ High Frequency",
1169 },
1170 };
1171
1172 /* table of compressor controls */
1173 static const struct snd_us16x08_control_params comp_controls[] = {
1174 { /* Comp enable */
1175 .kcontrol_new = &snd_us16x08_compswitch_ctl,
1176 .control_id = SND_US16X08_ID_COMP_SWITCH,
1177 .type = USB_MIXER_BOOLEAN,
1178 .num_channels = 16,
1179 .name = "Compressor Switch",
1180 },
1181 { /* Comp threshold */
1182 .kcontrol_new = &snd_us16x08_comp_threshold_ctl,
1183 .control_id = SND_US16X08_ID_COMP_THRESHOLD,
1184 .type = USB_MIXER_U8,
1185 .num_channels = 16,
1186 .name = "Compressor Threshold Volume",
1187 },
1188 { /* Comp ratio */
1189 .kcontrol_new = &snd_us16x08_comp_ratio_ctl,
1190 .control_id = SND_US16X08_ID_COMP_RATIO,
1191 .type = USB_MIXER_U8,
1192 .num_channels = 16,
1193 .name = "Compressor Ratio",
1194 },
1195 { /* Comp attack */
1196 .kcontrol_new = &snd_us16x08_comp_attack_ctl,
1197 .control_id = SND_US16X08_ID_COMP_ATTACK,
1198 .type = USB_MIXER_U8,
1199 .num_channels = 16,
1200 .name = "Compressor Attack",
1201 },
1202 { /* Comp release */
1203 .kcontrol_new = &snd_us16x08_comp_release_ctl,
1204 .control_id = SND_US16X08_ID_COMP_RELEASE,
1205 .type = USB_MIXER_U8,
1206 .num_channels = 16,
1207 .name = "Compressor Release",
1208 },
1209 { /* Comp gain */
1210 .kcontrol_new = &snd_us16x08_comp_gain_ctl,
1211 .control_id = SND_US16X08_ID_COMP_GAIN,
1212 .type = USB_MIXER_U8,
1213 .num_channels = 16,
1214 .name = "Compressor Volume",
1215 },
1216 };
1217
1218 /* table of channel controls */
1219 static const struct snd_us16x08_control_params channel_controls[] = {
1220 { /* Phase */
1221 .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
1222 .control_id = SND_US16X08_ID_PHASE,
1223 .type = USB_MIXER_BOOLEAN,
1224 .num_channels = 16,
1225 .name = "Phase Switch",
1226 .default_val = 0
1227 },
1228 { /* Fader */
1229 .kcontrol_new = &snd_us16x08_ch_int_ctl,
1230 .control_id = SND_US16X08_ID_FADER,
1231 .type = USB_MIXER_U8,
1232 .num_channels = 16,
1233 .name = "Line Volume",
1234 .default_val = 127
1235 },
1236 { /* Mute */
1237 .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
1238 .control_id = SND_US16X08_ID_MUTE,
1239 .type = USB_MIXER_BOOLEAN,
1240 .num_channels = 16,
1241 .name = "Mute Switch",
1242 .default_val = 0
1243 },
1244 { /* Pan */
1245 .kcontrol_new = &snd_us16x08_pan_int_ctl,
1246 .control_id = SND_US16X08_ID_PAN,
1247 .type = USB_MIXER_U16,
1248 .num_channels = 16,
1249 .name = "Pan Left-Right Volume",
1250 .default_val = 127
1251 },
1252 };
1253
1254 /* table of master controls */
1255 static const struct snd_us16x08_control_params master_controls[] = {
1256 { /* Master */
1257 .kcontrol_new = &snd_us16x08_master_ctl,
1258 .control_id = SND_US16X08_ID_FADER,
1259 .type = USB_MIXER_U8,
1260 .num_channels = 16,
1261 .name = "Master Volume",
1262 .default_val = 127
1263 },
1264 { /* Bypass */
1265 .kcontrol_new = &snd_us16x08_bus_ctl,
1266 .control_id = SND_US16X08_ID_BYPASS,
1267 .type = USB_MIXER_BOOLEAN,
1268 .num_channels = 16,
1269 .name = "DSP Bypass Switch",
1270 .default_val = 0
1271 },
1272 { /* Buss out */
1273 .kcontrol_new = &snd_us16x08_bus_ctl,
1274 .control_id = SND_US16X08_ID_BUSS_OUT,
1275 .type = USB_MIXER_BOOLEAN,
1276 .num_channels = 16,
1277 .name = "Buss Out Switch",
1278 .default_val = 0
1279 },
1280 { /* Master mute */
1281 .kcontrol_new = &snd_us16x08_bus_ctl,
1282 .control_id = SND_US16X08_ID_MUTE,
1283 .type = USB_MIXER_BOOLEAN,
1284 .num_channels = 16,
1285 .name = "Master Mute Switch",
1286 .default_val = 0
1287 },
1288
1289 };
1290
1291 int snd_us16x08_controls_create(struct usb_mixer_interface *mixer)
1292 {
1293 int i, j;
1294 int err;
1295 struct usb_mixer_elem_info *elem;
1296 struct snd_us16x08_comp_store *comp_store;
1297 struct snd_us16x08_meter_store *meter_store;
1298 struct snd_us16x08_eq_store *eq_store;
1299
1300 /* just check for non-MIDI interface */
1301 if (mixer->hostif->desc.bInterfaceNumber == 3) {
1302
1303 /* add routing control */
1304 err = add_new_ctl(mixer, &snd_us16x08_route_ctl,
1305 SND_US16X08_ID_ROUTE, USB_MIXER_U8, 8, "Line Out Route",
1306 NULL, false, &elem);
1307 if (err < 0) {
1308 usb_audio_dbg(mixer->chip,
1309 "Failed to create route control, err:%d\n",
1310 err);
1311 return err;
1312 }
1313 for (i = 0; i < 8; i++)
1314 elem->cache_val[i] = i < 2 ? i : i + 2;
1315 elem->cached = 0xff;
1316
1317 /* create compressor mixer elements */
1318 comp_store = snd_us16x08_create_comp_store();
1319 if (!comp_store)
1320 return -ENOMEM;
1321
1322 /* add master controls */
1323 for (i = 0; i < ARRAY_SIZE(master_controls); i++) {
1324
1325 err = add_new_ctl(mixer,
1326 master_controls[i].kcontrol_new,
1327 master_controls[i].control_id,
1328 master_controls[i].type,
1329 master_controls[i].num_channels,
1330 master_controls[i].name,
1331 comp_store,
1332 i == 0, /* release comp_store only once */
1333 &elem);
1334 if (err < 0)
1335 return err;
1336 elem->cache_val[0] = master_controls[i].default_val;
1337 elem->cached = 1;
1338 }
1339
1340 /* add channel controls */
1341 for (i = 0; i < ARRAY_SIZE(channel_controls); i++) {
1342
1343 err = add_new_ctl(mixer,
1344 channel_controls[i].kcontrol_new,
1345 channel_controls[i].control_id,
1346 channel_controls[i].type,
1347 channel_controls[i].num_channels,
1348 channel_controls[i].name,
1349 comp_store,
1350 false, &elem);
1351 if (err < 0)
1352 return err;
1353 for (j = 0; j < SND_US16X08_MAX_CHANNELS; j++) {
1354 elem->cache_val[j] =
1355 channel_controls[i].default_val;
1356 }
1357 elem->cached = 0xffff;
1358 }
1359
1360 /* create eq store */
1361 eq_store = snd_us16x08_create_eq_store();
1362 if (!eq_store)
1363 return -ENOMEM;
1364
1365 /* add EQ controls */
1366 for (i = 0; i < ARRAY_SIZE(eq_controls); i++) {
1367
1368 err = add_new_ctl(mixer,
1369 eq_controls[i].kcontrol_new,
1370 eq_controls[i].control_id,
1371 eq_controls[i].type,
1372 eq_controls[i].num_channels,
1373 eq_controls[i].name,
1374 eq_store,
1375 i == 0, /* release eq_store only once */
1376 NULL);
1377 if (err < 0)
1378 return err;
1379 }
1380
1381 /* add compressor controls */
1382 for (i = 0; i < ARRAY_SIZE(comp_controls); i++) {
1383
1384 err = add_new_ctl(mixer,
1385 comp_controls[i].kcontrol_new,
1386 comp_controls[i].control_id,
1387 comp_controls[i].type,
1388 comp_controls[i].num_channels,
1389 comp_controls[i].name,
1390 comp_store,
1391 false, NULL);
1392 if (err < 0)
1393 return err;
1394 }
1395
1396 /* create meters store */
1397 meter_store = snd_us16x08_create_meter_store();
1398 if (!meter_store)
1399 return -ENOMEM;
1400
1401 /* meter function 'get' must access to compressor store
1402 * so place a reference here
1403 */
1404 meter_store->comp_store = comp_store;
1405 err = add_new_ctl(mixer, &snd_us16x08_meter_ctl,
1406 SND_US16X08_ID_METER, USB_MIXER_U16, 0, "Level Meter",
1407 meter_store, true, NULL);
1408 if (err < 0)
1409 return err;
1410 }
1411
1412 return 0;
1413 }
1414
1415
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