sound/usb/mixer_us16x08.c

   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         char tmp[sizeof(mix_init_msg2)] = {0};
 702
 703         switch (kcontrol->private_value) {
 704         case 0:
 705                 snd_us16x08_send_urb(chip, (char *)mix_init_msg1,
 706                                      sizeof(mix_init_msg1));
 707                 snd_us16x08_recv_urb(chip, meter_urb,
 708                         sizeof(meter_urb));
 709                 kcontrol->private_value++;
 710                 break;
 711         case 1:
 712                 snd_us16x08_recv_urb(chip, meter_urb,
 713                         sizeof(meter_urb));
 714                 kcontrol->private_value++;
 715                 break;
 716         case 2:
 717                 snd_us16x08_recv_urb(chip, meter_urb,
 718                         sizeof(meter_urb));
 719                 kcontrol->private_value++;
 720                 break;
 721         case 3:
 722                 memcpy(tmp, mix_init_msg2, sizeof(mix_init_msg2));
 723                 tmp[2] = snd_get_meter_comp_index(store);
 724                 snd_us16x08_send_urb(chip, tmp, sizeof(mix_init_msg2));
 725                 snd_us16x08_recv_urb(chip, meter_urb,
 726                         sizeof(meter_urb));
 727                 kcontrol->private_value = 0;
 728                 break;
 729         }
 730
 731         for (set = 0; set < 6; set++)
 732                 get_meter_levels_from_urb(set, store, meter_urb);
 733
 734         for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
 735                 ucontrol->value.integer.value[i] =
 736                         store ? store->meter_level[i] : 0;
 737         }
 738
 739         ucontrol->value.integer.value[i++] = store ? store->master_level[0] : 0;
 740         ucontrol->value.integer.value[i++] = store ? store->master_level[1] : 0;
 741
 742         for (i = 2; i < SND_US16X08_MAX_CHANNELS + 2; i++)
 743                 ucontrol->value.integer.value[i + SND_US16X08_MAX_CHANNELS] =
 744                 store ? store->comp_level[i - 2] : 0;
 745
 746         return 1;
 747 }
 748
 749 static int snd_us16x08_meter_put(struct snd_kcontrol *kcontrol,
 750         struct snd_ctl_elem_value *ucontrol)
 751 {
 752         struct usb_mixer_elem_info *elem = kcontrol->private_data;
 753         struct snd_us16x08_meter_store *store = elem->private_data;
 754         int val;
 755
 756         val = ucontrol->value.integer.value[0];
 757
 758         /* sanity check */
 759         if (val < 0 || val >= SND_US16X08_MAX_CHANNELS)
 760                 return -EINVAL;
 761
 762         store->comp_active_index = val;
 763         store->comp_index = val;
 764
 765         return 1;
 766 }
 767
 768 static struct snd_kcontrol_new snd_us16x08_ch_boolean_ctl = {
 769         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 770         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 771         .count = 16,
 772         .info = snd_us16x08_switch_info,
 773         .get = snd_us16x08_channel_get,
 774         .put = snd_us16x08_channel_put,
 775         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
 776 };
 777
 778 static struct snd_kcontrol_new snd_us16x08_ch_int_ctl = {
 779         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 780         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 781         .count = 16,
 782         .info = snd_us16x08_mix_info,
 783         .get = snd_us16x08_channel_get,
 784         .put = snd_us16x08_channel_put,
 785         .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
 786 };
 787
 788 static struct snd_kcontrol_new snd_us16x08_pan_int_ctl = {
 789         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 790         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 791         .count = 16,
 792         .info = snd_us16x08_mix_info,
 793         .get = snd_us16x08_channel_get,
 794         .put = snd_us16x08_channel_put,
 795         .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 255)
 796 };
 797
 798 static struct snd_kcontrol_new snd_us16x08_master_ctl = {
 799         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 800         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 801         .count = 1,
 802         .info = snd_us16x08_master_info,
 803         .get = snd_us16x08_master_get,
 804         .put = snd_us16x08_master_put,
 805         .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133)
 806 };
 807
 808 static struct snd_kcontrol_new snd_us16x08_route_ctl = {
 809         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 810         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 811         .count = 8,
 812         .info = snd_us16x08_route_info,
 813         .get = snd_us16x08_route_get,
 814         .put = snd_us16x08_route_put,
 815         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 9)
 816 };
 817
 818 static struct snd_kcontrol_new snd_us16x08_bus_ctl = {
 819         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 820         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 821         .count = 1,
 822         .info = snd_us16x08_switch_info,
 823         .get = snd_us16x08_bus_get,
 824         .put = snd_us16x08_bus_put,
 825         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
 826 };
 827
 828 static struct snd_kcontrol_new snd_us16x08_compswitch_ctl = {
 829         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 830         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 831         .count = 16,
 832         .info = snd_us16x08_switch_info,
 833         .get = snd_us16x08_comp_get,
 834         .put = snd_us16x08_comp_put,
 835         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
 836 };
 837
 838 static struct snd_kcontrol_new snd_us16x08_comp_threshold_ctl = {
 839         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 840         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 841         .count = 16,
 842         .info = snd_us16x08_mix_info,
 843         .get = snd_us16x08_comp_get,
 844         .put = snd_us16x08_comp_put,
 845         .private_value = SND_US16X08_KCSET(SND_US16X08_COMP_THRESHOLD_BIAS, 1,
 846         0, 0x20)
 847 };
 848
 849 static struct snd_kcontrol_new snd_us16x08_comp_ratio_ctl = {
 850         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 851         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 852         .count = 16,
 853         .info = snd_us16x08_mix_info,
 854         .get = snd_us16x08_comp_get,
 855         .put = snd_us16x08_comp_put,
 856         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0,
 857         sizeof(ratio_map) - 1), /*max*/
 858 };
 859
 860 static struct snd_kcontrol_new snd_us16x08_comp_gain_ctl = {
 861         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 862         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 863         .count = 16,
 864         .info = snd_us16x08_mix_info,
 865         .get = snd_us16x08_comp_get,
 866         .put = snd_us16x08_comp_put,
 867         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x14)
 868 };
 869
 870 static struct snd_kcontrol_new snd_us16x08_comp_attack_ctl = {
 871         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 872         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 873         .count = 16,
 874         .info = snd_us16x08_mix_info,
 875         .get = snd_us16x08_comp_get,
 876         .put = snd_us16x08_comp_put,
 877         .private_value =
 878         SND_US16X08_KCSET(SND_US16X08_COMP_ATTACK_BIAS, 1, 0, 0xc6),
 879 };
 880
 881 static struct snd_kcontrol_new snd_us16x08_comp_release_ctl = {
 882         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 883         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 884         .count = 16,
 885         .info = snd_us16x08_mix_info,
 886         .get = snd_us16x08_comp_get,
 887         .put = snd_us16x08_comp_put,
 888         .private_value =
 889         SND_US16X08_KCSET(SND_US16X08_COMP_RELEASE_BIAS, 1, 0, 0x63),
 890 };
 891
 892 static struct snd_kcontrol_new snd_us16x08_eq_gain_ctl = {
 893         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 894         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 895         .count = 16,
 896         .info = snd_us16x08_mix_info,
 897         .get = snd_us16x08_eq_get,
 898         .put = snd_us16x08_eq_put,
 899         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 24),
 900 };
 901
 902 static struct snd_kcontrol_new snd_us16x08_eq_low_freq_ctl = {
 903         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 904         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 905         .count = 16,
 906         .info = snd_us16x08_mix_info,
 907         .get = snd_us16x08_eq_get,
 908         .put = snd_us16x08_eq_put,
 909         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x1F),
 910 };
 911
 912 static struct snd_kcontrol_new snd_us16x08_eq_mid_freq_ctl = {
 913         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 914         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 915         .count = 16,
 916         .info = snd_us16x08_mix_info,
 917         .get = snd_us16x08_eq_get,
 918         .put = snd_us16x08_eq_put,
 919         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x3F)
 920 };
 921
 922 static struct snd_kcontrol_new snd_us16x08_eq_mid_width_ctl = {
 923         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 924         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 925         .count = 16,
 926         .info = snd_us16x08_mix_info,
 927         .get = snd_us16x08_eq_get,
 928         .put = snd_us16x08_eq_put,
 929         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x06)
 930 };
 931
 932 static struct snd_kcontrol_new snd_us16x08_eq_high_freq_ctl = {
 933         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 934         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 935         .count = 16,
 936         .info = snd_us16x08_mix_info,
 937         .get = snd_us16x08_eq_get,
 938         .put = snd_us16x08_eq_put,
 939         .private_value =
 940         SND_US16X08_KCSET(SND_US16X08_EQ_HIGHFREQ_BIAS, 1, 0, 0x1F)
 941 };
 942
 943 static struct snd_kcontrol_new snd_us16x08_eq_switch_ctl = {
 944         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 945         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 946         .count = 16,
 947         .info = snd_us16x08_switch_info,
 948         .get = snd_us16x08_eqswitch_get,
 949         .put = snd_us16x08_eqswitch_put,
 950         .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1)
 951 };
 952
 953 static struct snd_kcontrol_new snd_us16x08_meter_ctl = {
 954         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 955         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 956         .count = 1,
 957         .info = snd_us16x08_meter_info,
 958         .get = snd_us16x08_meter_get,
 959         .put = snd_us16x08_meter_put
 960 };
 961
 962 /* control store preparation */
 963
 964 /* setup compressor store and assign default value */
 965 static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void)
 966 {
 967         int i;
 968         struct snd_us16x08_comp_store *tmp;
 969
 970         tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
 971         if (!tmp)
 972                 return NULL;
 973
 974         for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
 975                 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][i]
 976                         = 0x20;
 977                 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][i] = 0x00;
 978                 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][i] = 0x00;
 979                 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][i] = 0x00;
 980                 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][i] = 0x00;
 981                 tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][i] = 0x00;
 982         }
 983         return tmp;
 984 }
 985
 986 /* setup EQ store and assign default values */
 987 static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(void)
 988 {
 989         int i, b_idx;
 990         struct snd_us16x08_eq_store *tmp;
 991
 992         tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
 993         if (!tmp)
 994                 return NULL;
 995
 996         for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) {
 997                 for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) {
 998                         tmp->val[b_idx][0][i] = 0x0c;
 999                         tmp->val[b_idx][3][i] = 0x00;
1000                         switch (b_idx) {
1001                         case 0: /* EQ Low */
1002                                 tmp->val[b_idx][1][i] = 0x05;
1003                                 tmp->val[b_idx][2][i] = 0xff;
1004                                 break;
1005                         case 1: /* EQ Mid low */
1006                                 tmp->val[b_idx][1][i] = 0x0e;
1007                                 tmp->val[b_idx][2][i] = 0x02;
1008                                 break;
1009                         case 2: /* EQ Mid High */
1010                                 tmp->val[b_idx][1][i] = 0x1b;
1011                                 tmp->val[b_idx][2][i] = 0x02;
1012                                 break;
1013                         case 3: /* EQ High */
1014                                 tmp->val[b_idx][1][i] = 0x2f
1015                                         - SND_US16X08_EQ_HIGHFREQ_BIAS;
1016                                 tmp->val[b_idx][2][i] = 0xff;
1017                                 break;
1018                         }
1019                 }
1020         }
1021         return tmp;
1022 }
1023
1024 static struct snd_us16x08_meter_store *snd_us16x08_create_meter_store(void)
1025 {
1026         struct snd_us16x08_meter_store *tmp;
1027
1028         tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1029         if (!tmp)
1030                 return NULL;
1031         tmp->comp_index = 1;
1032         tmp->comp_active_index = 0;
1033         return tmp;
1034 }
1035
1036 /* release elem->private_free as well; called only once for each *_store */
1037 static void elem_private_free(struct snd_kcontrol *kctl)
1038 {
1039         struct usb_mixer_elem_info *elem = kctl->private_data;
1040
1041         if (elem)
1042                 kfree(elem->private_data);
1043         kfree(elem);
1044         kctl->private_data = NULL;
1045 }
1046
1047 static int add_new_ctl(struct usb_mixer_interface *mixer,
1048         const struct snd_kcontrol_new *ncontrol,
1049         int index, int val_type, int channels,
1050         const char *name, void *opt,
1051         bool do_private_free,
1052         struct usb_mixer_elem_info **elem_ret)
1053 {
1054         struct snd_kcontrol *kctl;
1055         struct usb_mixer_elem_info *elem;
1056         int err;
1057
1058         usb_audio_dbg(mixer->chip, "us16x08 add mixer %s\n", name);
1059
1060         elem = kzalloc(sizeof(*elem), GFP_KERNEL);
1061         if (!elem)
1062                 return -ENOMEM;
1063
1064         elem->head.mixer = mixer;
1065         elem->head.resume = NULL;
1066         elem->control = 0;
1067         elem->idx_off = 0;
1068         elem->head.id = index;
1069         elem->val_type = val_type;
1070         elem->channels = channels;
1071         elem->private_data = opt;
1072
1073         kctl = snd_ctl_new1(ncontrol, elem);
1074         if (!kctl) {
1075                 kfree(elem);
1076                 return -ENOMEM;
1077         }
1078
1079         if (do_private_free)
1080                 kctl->private_free = elem_private_free;
1081         else
1082                 kctl->private_free = snd_usb_mixer_elem_free;
1083
1084         strlcpy(kctl->id.name, name, sizeof(kctl->id.name));
1085
1086         err = snd_usb_mixer_add_control(&elem->head, kctl);
1087         if (err < 0)
1088                 return err;
1089
1090         if (elem_ret)
1091                 *elem_ret = elem;
1092
1093         return 0;
1094 }
1095
1096 /* table of EQ controls */
1097 static const struct snd_us16x08_control_params eq_controls[] = {
1098         { /* EQ switch */
1099                 .kcontrol_new = &snd_us16x08_eq_switch_ctl,
1100                 .control_id = SND_US16X08_ID_EQENABLE,
1101                 .type = USB_MIXER_BOOLEAN,
1102                 .num_channels = 16,
1103                 .name = "EQ Switch",
1104         },
1105         { /* EQ low gain */
1106                 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1107                 .control_id = SND_US16X08_ID_EQLOWLEVEL,
1108                 .type = USB_MIXER_U8,
1109                 .num_channels = 16,
1110                 .name = "EQ Low Volume",
1111         },
1112         { /* EQ low freq */
1113                 .kcontrol_new = &snd_us16x08_eq_low_freq_ctl,
1114                 .control_id = SND_US16X08_ID_EQLOWFREQ,
1115                 .type = USB_MIXER_U8,
1116                 .num_channels = 16,
1117                 .name = "EQ Low Frequence",
1118         },
1119         { /* EQ mid low gain */
1120                 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1121                 .control_id = SND_US16X08_ID_EQLOWMIDLEVEL,
1122                 .type = USB_MIXER_U8,
1123                 .num_channels = 16,
1124                 .name = "EQ MidLow Volume",
1125         },
1126         { /* EQ mid low freq */
1127                 .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
1128                 .control_id = SND_US16X08_ID_EQLOWMIDFREQ,
1129                 .type = USB_MIXER_U8,
1130                 .num_channels = 16,
1131                 .name = "EQ MidLow Frequence",
1132         },
1133         { /* EQ mid low Q */
1134                 .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
1135                 .control_id = SND_US16X08_ID_EQLOWMIDWIDTH,
1136                 .type = USB_MIXER_U8,
1137                 .num_channels = 16,
1138                 .name = "EQ MidQLow Q",
1139         },
1140         { /* EQ mid high gain */
1141                 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1142                 .control_id = SND_US16X08_ID_EQHIGHMIDLEVEL,
1143                 .type = USB_MIXER_U8,
1144                 .num_channels = 16,
1145                 .name = "EQ MidHigh Volume",
1146         },
1147         { /* EQ mid high freq */
1148                 .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl,
1149                 .control_id = SND_US16X08_ID_EQHIGHMIDFREQ,
1150                 .type = USB_MIXER_U8,
1151                 .num_channels = 16,
1152                 .name = "EQ MidHigh Frequence",
1153         },
1154         { /* EQ mid high Q */
1155                 .kcontrol_new = &snd_us16x08_eq_mid_width_ctl,
1156                 .control_id = SND_US16X08_ID_EQHIGHMIDWIDTH,
1157                 .type = USB_MIXER_U8,
1158                 .num_channels = 16,
1159                 .name = "EQ MidHigh Q",
1160         },
1161         { /* EQ high gain */
1162                 .kcontrol_new = &snd_us16x08_eq_gain_ctl,
1163                 .control_id = SND_US16X08_ID_EQHIGHLEVEL,
1164                 .type = USB_MIXER_U8,
1165                 .num_channels = 16,
1166                 .name = "EQ High Volume",
1167         },
1168         { /* EQ low freq */
1169                 .kcontrol_new = &snd_us16x08_eq_high_freq_ctl,
1170                 .control_id = SND_US16X08_ID_EQHIGHFREQ,
1171                 .type = USB_MIXER_U8,
1172                 .num_channels = 16,
1173                 .name = "EQ High Frequence",
1174         },
1175 };
1176
1177 /* table of compressor controls */
1178 static const struct snd_us16x08_control_params comp_controls[] = {
1179         { /* Comp enable */
1180                 .kcontrol_new = &snd_us16x08_compswitch_ctl,
1181                 .control_id = SND_US16X08_ID_COMP_SWITCH,
1182                 .type = USB_MIXER_BOOLEAN,
1183                 .num_channels = 16,
1184                 .name = "Compressor Switch",
1185         },
1186         { /* Comp threshold */
1187                 .kcontrol_new = &snd_us16x08_comp_threshold_ctl,
1188                 .control_id = SND_US16X08_ID_COMP_THRESHOLD,
1189                 .type = USB_MIXER_U8,
1190                 .num_channels = 16,
1191                 .name = "Compressor Threshold Volume",
1192         },
1193         { /* Comp ratio */
1194                 .kcontrol_new = &snd_us16x08_comp_ratio_ctl,
1195                 .control_id = SND_US16X08_ID_COMP_RATIO,
1196                 .type = USB_MIXER_U8,
1197                 .num_channels = 16,
1198                 .name = "Compressor Ratio",
1199         },
1200         { /* Comp attack */
1201                 .kcontrol_new = &snd_us16x08_comp_attack_ctl,
1202                 .control_id = SND_US16X08_ID_COMP_ATTACK,
1203                 .type = USB_MIXER_U8,
1204                 .num_channels = 16,
1205                 .name = "Compressor Attack",
1206         },
1207         { /* Comp release */
1208                 .kcontrol_new = &snd_us16x08_comp_release_ctl,
1209                 .control_id = SND_US16X08_ID_COMP_RELEASE,
1210                 .type = USB_MIXER_U8,
1211                 .num_channels = 16,
1212                 .name = "Compressor Release",
1213         },
1214         { /* Comp gain */
1215                 .kcontrol_new = &snd_us16x08_comp_gain_ctl,
1216                 .control_id = SND_US16X08_ID_COMP_GAIN,
1217                 .type = USB_MIXER_U8,
1218                 .num_channels = 16,
1219                 .name = "Compressor Volume",
1220         },
1221 };
1222
1223 /* table of channel controls */
1224 static const struct snd_us16x08_control_params channel_controls[] = {
1225         { /* Phase */
1226                 .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
1227                 .control_id = SND_US16X08_ID_PHASE,
1228                 .type = USB_MIXER_BOOLEAN,
1229                 .num_channels = 16,
1230                 .name = "Phase Switch",
1231                 .default_val = 0
1232         },
1233         { /* Fader */
1234                 .kcontrol_new = &snd_us16x08_ch_int_ctl,
1235                 .control_id = SND_US16X08_ID_FADER,
1236                 .type = USB_MIXER_U8,
1237                 .num_channels = 16,
1238                 .name = "Line Volume",
1239                 .default_val = 127
1240         },
1241         { /* Mute */
1242                 .kcontrol_new = &snd_us16x08_ch_boolean_ctl,
1243                 .control_id = SND_US16X08_ID_MUTE,
1244                 .type = USB_MIXER_BOOLEAN,
1245                 .num_channels = 16,
1246                 .name = "Mute Switch",
1247                 .default_val = 0
1248         },
1249         { /* Pan */
1250                 .kcontrol_new = &snd_us16x08_pan_int_ctl,
1251                 .control_id = SND_US16X08_ID_PAN,
1252                 .type = USB_MIXER_U16,
1253                 .num_channels = 16,
1254                 .name = "Pan Left-Right Volume",
1255                 .default_val = 127
1256         },
1257 };
1258
1259 /* table of master controls */
1260 static const struct snd_us16x08_control_params master_controls[] = {
1261         { /* Master */
1262                 .kcontrol_new = &snd_us16x08_master_ctl,
1263                 .control_id = SND_US16X08_ID_FADER,
1264                 .type = USB_MIXER_U8,
1265                 .num_channels = 16,
1266                 .name = "Master Volume",
1267                 .default_val = 127
1268         },
1269         { /* Bypass */
1270                 .kcontrol_new = &snd_us16x08_bus_ctl,
1271                 .control_id = SND_US16X08_ID_BYPASS,
1272                 .type = USB_MIXER_BOOLEAN,
1273                 .num_channels = 16,
1274                 .name = "DSP Bypass Switch",
1275                 .default_val = 0
1276         },
1277         { /* Buss out */
1278                 .kcontrol_new = &snd_us16x08_bus_ctl,
1279                 .control_id = SND_US16X08_ID_BUSS_OUT,
1280                 .type = USB_MIXER_BOOLEAN,
1281                 .num_channels = 16,
1282                 .name = "Buss Out Switch",
1283                 .default_val = 0
1284         },
1285         { /* Master mute */
1286                 .kcontrol_new = &snd_us16x08_bus_ctl,
1287                 .control_id = SND_US16X08_ID_MUTE,
1288                 .type = USB_MIXER_BOOLEAN,
1289                 .num_channels = 16,
1290                 .name = "Master Mute Switch",
1291                 .default_val = 0
1292         },
1293
1294 };
1295
1296 int snd_us16x08_controls_create(struct usb_mixer_interface *mixer)
1297 {
1298         int i, j;
1299         int err;
1300         struct usb_mixer_elem_info *elem;
1301         struct snd_us16x08_comp_store *comp_store;
1302         struct snd_us16x08_meter_store *meter_store;
1303         struct snd_us16x08_eq_store *eq_store;
1304
1305         /* just check for non-MIDI interface */
1306         if (mixer->hostif->desc.bInterfaceNumber == 3) {
1307
1308                 /* add routing control */
1309                 err = add_new_ctl(mixer, &snd_us16x08_route_ctl,
1310                         SND_US16X08_ID_ROUTE, USB_MIXER_U8, 8, "Line Out Route",
1311                         NULL, false, &elem);
1312                 if (err < 0) {
1313                         usb_audio_dbg(mixer->chip,
1314                                 "Failed to create route control, err:%d\n",
1315                                 err);
1316                         return err;
1317                 }
1318                 for (i = 0; i < 8; i++)
1319                         elem->cache_val[i] = i < 2 ? i : i + 2;
1320                 elem->cached = 0xff;
1321
1322                 /* create compressor mixer elements */
1323                 comp_store = snd_us16x08_create_comp_store();
1324                 if (!comp_store)
1325                         return -ENOMEM;
1326
1327                 /* add master controls */
1328                 for (i = 0; i < ARRAY_SIZE(master_controls); i++) {
1329
1330                         err = add_new_ctl(mixer,
1331                                 master_controls[i].kcontrol_new,
1332                                 master_controls[i].control_id,
1333                                 master_controls[i].type,
1334                                 master_controls[i].num_channels,
1335                                 master_controls[i].name,
1336                                 comp_store,
1337                                 i == 0, /* release comp_store only once */
1338                                 &elem);
1339                         if (err < 0)
1340                                 return err;
1341                         elem->cache_val[0] = master_controls[i].default_val;
1342                         elem->cached = 1;
1343                 }
1344
1345                 /* add channel controls */
1346                 for (i = 0; i < ARRAY_SIZE(channel_controls); i++) {
1347
1348                         err = add_new_ctl(mixer,
1349                                 channel_controls[i].kcontrol_new,
1350                                 channel_controls[i].control_id,
1351                                 channel_controls[i].type,
1352                                 channel_controls[i].num_channels,
1353                                 channel_controls[i].name,
1354                                 comp_store,
1355                                 false, &elem);
1356                         if (err < 0)
1357                                 return err;
1358                         for (j = 0; j < SND_US16X08_MAX_CHANNELS; j++) {
1359                                 elem->cache_val[j] =
1360                                         channel_controls[i].default_val;
1361                         }
1362                         elem->cached = 0xffff;
1363                 }
1364
1365                 /* create eq store */
1366                 eq_store = snd_us16x08_create_eq_store();
1367                 if (!eq_store)
1368                         return -ENOMEM;
1369
1370                 /* add EQ controls */
1371                 for (i = 0; i < ARRAY_SIZE(eq_controls); i++) {
1372
1373                         err = add_new_ctl(mixer,
1374                                 eq_controls[i].kcontrol_new,
1375                                 eq_controls[i].control_id,
1376                                 eq_controls[i].type,
1377                                 eq_controls[i].num_channels,
1378                                 eq_controls[i].name,
1379                                 eq_store,
1380                                 i == 0, /* release eq_store only once */
1381                                 NULL);
1382                         if (err < 0)
1383                                 return err;
1384                 }
1385
1386                 /* add compressor controls */
1387                 for (i = 0; i < ARRAY_SIZE(comp_controls); i++) {
1388
1389                         err = add_new_ctl(mixer,
1390                                 comp_controls[i].kcontrol_new,
1391                                 comp_controls[i].control_id,
1392                                 comp_controls[i].type,
1393                                 comp_controls[i].num_channels,
1394                                 comp_controls[i].name,
1395                                 comp_store,
1396                                 false, NULL);
1397                         if (err < 0)
1398                                 return err;
1399                 }
1400
1401                 /* create meters store */
1402                 meter_store = snd_us16x08_create_meter_store();
1403                 if (!meter_store)
1404                         return -ENOMEM;
1405
1406                 /* meter function 'get' must access to compressor store
1407                  * so place a reference here
1408                  */
1409                 meter_store->comp_store = comp_store;
1410                 err = add_new_ctl(mixer, &snd_us16x08_meter_ctl,
1411                         SND_US16X08_ID_METER, USB_MIXER_U16, 0, "Level Meter",
1412                         meter_store, true, NULL);
1413                 if (err < 0)
1414                         return err;
1415         }
1416
1417         return 0;
1418 }
1419