sound/usb/mixer_quirks.c

   1 /*
   2  *   USB Audio Driver for ALSA
   3  *
   4  *   Quirks and vendor-specific extensions for mixer interfaces
   5  *
   6  *   Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   7  *
   8  *   Many codes borrowed from audio.c by
   9  *          Alan Cox (alan@lxorguk.ukuu.org.uk)
  10  *          Thomas Sailer (sailer@ife.ee.ethz.ch)
  11  *
  12  *   Audio Advantage Micro II support added by:
  13  *          Przemek Rudy (prudy1@o2.pl)
  14  *
  15  *   This program is free software; you can redistribute it and/or modify
  16  *   it under the terms of the GNU General Public License as published by
  17  *   the Free Software Foundation; either version 2 of the License, or
  18  *   (at your option) any later version.
  19  *
  20  *   This program is distributed in the hope that it will be useful,
  21  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *   GNU General Public License for more details.
  24  *
  25  *   You should have received a copy of the GNU General Public License
  26  *   along with this program; if not, write to the Free Software
  27  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  28  */
  29
  30 #include <linux/init.h>
  31 #include <linux/slab.h>
  32 #include <linux/usb.h>
  33 #include <linux/usb/audio.h>
  34
  35 #include <sound/asoundef.h>
  36 #include <sound/core.h>
  37 #include <sound/control.h>
  38 #include <sound/hwdep.h>
  39 #include <sound/info.h>
  40 #include <sound/tlv.h>
  41
  42 #include "usbaudio.h"
  43 #include "mixer.h"
  44 #include "mixer_quirks.h"
  45 #include "mixer_scarlett.h"
  46 #include "helper.h"
  47
  48 extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl;
  49
  50 struct std_mono_table {
  51         unsigned int unitid, control, cmask;
  52         int val_type;
  53         const char *name;
  54         snd_kcontrol_tlv_rw_t *tlv_callback;
  55 };
  56
  57 /* This function allows for the creation of standard UAC controls.
  58  * See the quirks for M-Audio FTUs or Ebox-44.
  59  * If you don't want to set a TLV callback pass NULL.
  60  *
  61  * Since there doesn't seem to be a devices that needs a multichannel
  62  * version, we keep it mono for simplicity.
  63  */
  64 static int snd_create_std_mono_ctl_offset(struct usb_mixer_interface *mixer,
  65                                 unsigned int unitid,
  66                                 unsigned int control,
  67                                 unsigned int cmask,
  68                                 int val_type,
  69                                 unsigned int idx_off,
  70                                 const char *name,
  71                                 snd_kcontrol_tlv_rw_t *tlv_callback)
  72 {
  73         struct usb_mixer_elem_info *cval;
  74         struct snd_kcontrol *kctl;
  75
  76         cval = kzalloc(sizeof(*cval), GFP_KERNEL);
  77         if (!cval)
  78                 return -ENOMEM;
  79
  80         snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid);
  81         cval->val_type = val_type;
  82         cval->channels = 1;
  83         cval->control = control;
  84         cval->cmask = cmask;
  85         cval->idx_off = idx_off;
  86
  87         /* get_min_max() is called only for integer volumes later,
  88          * so provide a short-cut for booleans */
  89         cval->min = 0;
  90         cval->max = 1;
  91         cval->res = 0;
  92         cval->dBmin = 0;
  93         cval->dBmax = 0;
  94
  95         /* Create control */
  96         kctl = snd_ctl_new1(snd_usb_feature_unit_ctl, cval);
  97         if (!kctl) {
  98                 kfree(cval);
  99                 return -ENOMEM;
 100         }
 101
 102         /* Set name */
 103         snprintf(kctl->id.name, sizeof(kctl->id.name), name);
 104         kctl->private_free = snd_usb_mixer_elem_free;
 105
 106         /* set TLV */
 107         if (tlv_callback) {
 108                 kctl->tlv.c = tlv_callback;
 109                 kctl->vd[0].access |=
 110                         SNDRV_CTL_ELEM_ACCESS_TLV_READ |
 111                         SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
 112         }
 113         /* Add control to mixer */
 114         return snd_usb_mixer_add_control(&cval->head, kctl);
 115 }
 116
 117 static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer,
 118                                 unsigned int unitid,
 119                                 unsigned int control,
 120                                 unsigned int cmask,
 121                                 int val_type,
 122                                 const char *name,
 123                                 snd_kcontrol_tlv_rw_t *tlv_callback)
 124 {
 125         return snd_create_std_mono_ctl_offset(mixer, unitid, control, cmask,
 126                 val_type, 0 /* Offset */, name, tlv_callback);
 127 }
 128
 129 /*
 130  * Create a set of standard UAC controls from a table
 131  */
 132 static int snd_create_std_mono_table(struct usb_mixer_interface *mixer,
 133                                 struct std_mono_table *t)
 134 {
 135         int err;
 136
 137         while (t->name != NULL) {
 138                 err = snd_create_std_mono_ctl(mixer, t->unitid, t->control,
 139                                 t->cmask, t->val_type, t->name, t->tlv_callback);
 140                 if (err < 0)
 141                         return err;
 142                 t++;
 143         }
 144
 145         return 0;
 146 }
 147
 148 static int add_single_ctl_with_resume(struct usb_mixer_interface *mixer,
 149                                       int id,
 150                                       usb_mixer_elem_resume_func_t resume,
 151                                       const struct snd_kcontrol_new *knew,
 152                                       struct usb_mixer_elem_list **listp)
 153 {
 154         struct usb_mixer_elem_list *list;
 155         struct snd_kcontrol *kctl;
 156
 157         list = kzalloc(sizeof(*list), GFP_KERNEL);
 158         if (!list)
 159                 return -ENOMEM;
 160         if (listp)
 161                 *listp = list;
 162         list->mixer = mixer;
 163         list->id = id;
 164         list->resume = resume;
 165         kctl = snd_ctl_new1(knew, list);
 166         if (!kctl) {
 167                 kfree(list);
 168                 return -ENOMEM;
 169         }
 170         kctl->private_free = snd_usb_mixer_elem_free;
 171         return snd_usb_mixer_add_control(list, kctl);
 172 }
 173
 174 /*
 175  * Sound Blaster remote control configuration
 176  *
 177  * format of remote control data:
 178  * Extigy:       xx 00
 179  * Audigy 2 NX:  06 80 xx 00 00 00
 180  * Live! 24-bit: 06 80 xx yy 22 83
 181  */
 182 static const struct rc_config {
 183         u32 usb_id;
 184         u8  offset;
 185         u8  length;
 186         u8  packet_length;
 187         u8  min_packet_length; /* minimum accepted length of the URB result */
 188         u8  mute_mixer_id;
 189         u32 mute_code;
 190 } rc_configs[] = {
 191         { USB_ID(0x041e, 0x3000), 0, 1, 2, 1,  18, 0x0013 }, /* Extigy       */
 192         { USB_ID(0x041e, 0x3020), 2, 1, 6, 6,  18, 0x0013 }, /* Audigy 2 NX  */
 193         { USB_ID(0x041e, 0x3040), 2, 2, 6, 6,  2,  0x6e91 }, /* Live! 24-bit */
 194         { USB_ID(0x041e, 0x3042), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 */
 195         { USB_ID(0x041e, 0x30df), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
 196         { USB_ID(0x041e, 0x3237), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
 197         { USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */
 198 };
 199
 200 static void snd_usb_soundblaster_remote_complete(struct urb *urb)
 201 {
 202         struct usb_mixer_interface *mixer = urb->context;
 203         const struct rc_config *rc = mixer->rc_cfg;
 204         u32 code;
 205
 206         if (urb->status < 0 || urb->actual_length < rc->min_packet_length)
 207                 return;
 208
 209         code = mixer->rc_buffer[rc->offset];
 210         if (rc->length == 2)
 211                 code |= mixer->rc_buffer[rc->offset + 1] << 8;
 212
 213         /* the Mute button actually changes the mixer control */
 214         if (code == rc->mute_code)
 215                 snd_usb_mixer_notify_id(mixer, rc->mute_mixer_id);
 216         mixer->rc_code = code;
 217         wmb();
 218         wake_up(&mixer->rc_waitq);
 219 }
 220
 221 static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
 222                                      long count, loff_t *offset)
 223 {
 224         struct usb_mixer_interface *mixer = hw->private_data;
 225         int err;
 226         u32 rc_code;
 227
 228         if (count != 1 && count != 4)
 229                 return -EINVAL;
 230         err = wait_event_interruptible(mixer->rc_waitq,
 231                                        (rc_code = xchg(&mixer->rc_code, 0)) != 0);
 232         if (err == 0) {
 233                 if (count == 1)
 234                         err = put_user(rc_code, buf);
 235                 else
 236                         err = put_user(rc_code, (u32 __user *)buf);
 237         }
 238         return err < 0 ? err : count;
 239 }
 240
 241 static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file,
 242                                             poll_table *wait)
 243 {
 244         struct usb_mixer_interface *mixer = hw->private_data;
 245
 246         poll_wait(file, &mixer->rc_waitq, wait);
 247         return mixer->rc_code ? POLLIN | POLLRDNORM : 0;
 248 }
 249
 250 static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
 251 {
 252         struct snd_hwdep *hwdep;
 253         int err, len, i;
 254
 255         for (i = 0; i < ARRAY_SIZE(rc_configs); ++i)
 256                 if (rc_configs[i].usb_id == mixer->chip->usb_id)
 257                         break;
 258         if (i >= ARRAY_SIZE(rc_configs))
 259                 return 0;
 260         mixer->rc_cfg = &rc_configs[i];
 261
 262         len = mixer->rc_cfg->packet_length;
 263
 264         init_waitqueue_head(&mixer->rc_waitq);
 265         err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep);
 266         if (err < 0)
 267                 return err;
 268         snprintf(hwdep->name, sizeof(hwdep->name),
 269                  "%s remote control", mixer->chip->card->shortname);
 270         hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC;
 271         hwdep->private_data = mixer;
 272         hwdep->ops.read = snd_usb_sbrc_hwdep_read;
 273         hwdep->ops.poll = snd_usb_sbrc_hwdep_poll;
 274         hwdep->exclusive = 1;
 275
 276         mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL);
 277         if (!mixer->rc_urb)
 278                 return -ENOMEM;
 279         mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL);
 280         if (!mixer->rc_setup_packet) {
 281                 usb_free_urb(mixer->rc_urb);
 282                 mixer->rc_urb = NULL;
 283                 return -ENOMEM;
 284         }
 285         mixer->rc_setup_packet->bRequestType =
 286                 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
 287         mixer->rc_setup_packet->bRequest = UAC_GET_MEM;
 288         mixer->rc_setup_packet->wValue = cpu_to_le16(0);
 289         mixer->rc_setup_packet->wIndex = cpu_to_le16(0);
 290         mixer->rc_setup_packet->wLength = cpu_to_le16(len);
 291         usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev,
 292                              usb_rcvctrlpipe(mixer->chip->dev, 0),
 293                              (u8*)mixer->rc_setup_packet, mixer->rc_buffer, len,
 294                              snd_usb_soundblaster_remote_complete, mixer);
 295         return 0;
 296 }
 297
 298 #define snd_audigy2nx_led_info          snd_ctl_boolean_mono_info
 299
 300 static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 301 {
 302         ucontrol->value.integer.value[0] = kcontrol->private_value >> 8;
 303         return 0;
 304 }
 305
 306 static int snd_audigy2nx_led_update(struct usb_mixer_interface *mixer,
 307                                     int value, int index)
 308 {
 309         struct snd_usb_audio *chip = mixer->chip;
 310         int err;
 311
 312         err = snd_usb_lock_shutdown(chip);
 313         if (err < 0)
 314                 return err;
 315
 316         if (chip->usb_id == USB_ID(0x041e, 0x3042))
 317                 err = snd_usb_ctl_msg(chip->dev,
 318                               usb_sndctrlpipe(chip->dev, 0), 0x24,
 319                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 320                               !value, 0, NULL, 0);
 321         /* USB X-Fi S51 Pro */
 322         if (chip->usb_id == USB_ID(0x041e, 0x30df))
 323                 err = snd_usb_ctl_msg(chip->dev,
 324                               usb_sndctrlpipe(chip->dev, 0), 0x24,
 325                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 326                               !value, 0, NULL, 0);
 327         else
 328                 err = snd_usb_ctl_msg(chip->dev,
 329                               usb_sndctrlpipe(chip->dev, 0), 0x24,
 330                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 331                               value, index + 2, NULL, 0);
 332         snd_usb_unlock_shutdown(chip);
 333         return err;
 334 }
 335
 336 static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol,
 337                                  struct snd_ctl_elem_value *ucontrol)
 338 {
 339         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
 340         struct usb_mixer_interface *mixer = list->mixer;
 341         int index = kcontrol->private_value & 0xff;
 342         unsigned int value = ucontrol->value.integer.value[0];
 343         int old_value = kcontrol->private_value >> 8;
 344         int err;
 345
 346         if (value > 1)
 347                 return -EINVAL;
 348         if (value == old_value)
 349                 return 0;
 350         kcontrol->private_value = (value << 8) | index;
 351         err = snd_audigy2nx_led_update(mixer, value, index);
 352         return err < 0 ? err : 1;
 353 }
 354
 355 static int snd_audigy2nx_led_resume(struct usb_mixer_elem_list *list)
 356 {
 357         int priv_value = list->kctl->private_value;
 358
 359         return snd_audigy2nx_led_update(list->mixer, priv_value >> 8,
 360                                         priv_value & 0xff);
 361 }
 362
 363 /* name and private_value are set dynamically */
 364 static struct snd_kcontrol_new snd_audigy2nx_control = {
 365         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 366         .info = snd_audigy2nx_led_info,
 367         .get = snd_audigy2nx_led_get,
 368         .put = snd_audigy2nx_led_put,
 369 };
 370
 371 static const char * const snd_audigy2nx_led_names[] = {
 372         "CMSS LED Switch",
 373         "Power LED Switch",
 374         "Dolby Digital LED Switch",
 375 };
 376
 377 static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
 378 {
 379         int i, err;
 380
 381         for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_led_names); ++i) {
 382                 struct snd_kcontrol_new knew;
 383
 384                 /* USB X-Fi S51 doesn't have a CMSS LED */
 385                 if ((mixer->chip->usb_id == USB_ID(0x041e, 0x3042)) && i == 0)
 386                         continue;
 387                 /* USB X-Fi S51 Pro doesn't have one either */
 388                 if ((mixer->chip->usb_id == USB_ID(0x041e, 0x30df)) && i == 0)
 389                         continue;
 390                 if (i > 1 && /* Live24ext has 2 LEDs only */
 391                         (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 392                          mixer->chip->usb_id == USB_ID(0x041e, 0x3042) ||
 393                          mixer->chip->usb_id == USB_ID(0x041e, 0x30df) ||
 394                          mixer->chip->usb_id == USB_ID(0x041e, 0x3048)))
 395                         break;
 396
 397                 knew = snd_audigy2nx_control;
 398                 knew.name = snd_audigy2nx_led_names[i];
 399                 knew.private_value = (1 << 8) | i; /* LED on as default */
 400                 err = add_single_ctl_with_resume(mixer, 0,
 401                                                  snd_audigy2nx_led_resume,
 402                                                  &knew, NULL);
 403                 if (err < 0)
 404                         return err;
 405         }
 406         return 0;
 407 }
 408
 409 static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
 410                                     struct snd_info_buffer *buffer)
 411 {
 412         static const struct sb_jack {
 413                 int unitid;
 414                 const char *name;
 415         }  jacks_audigy2nx[] = {
 416                 {4,  "dig in "},
 417                 {7,  "line in"},
 418                 {19, "spk out"},
 419                 {20, "hph out"},
 420                 {-1, NULL}
 421         }, jacks_live24ext[] = {
 422                 {4,  "line in"}, /* &1=Line, &2=Mic*/
 423                 {3,  "hph out"}, /* headphones */
 424                 {0,  "RC     "}, /* last command, 6 bytes see rc_config above */
 425                 {-1, NULL}
 426         };
 427         const struct sb_jack *jacks;
 428         struct usb_mixer_interface *mixer = entry->private_data;
 429         int i, err;
 430         u8 buf[3];
 431
 432         snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname);
 433         if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020))
 434                 jacks = jacks_audigy2nx;
 435         else if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 436                  mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
 437                 jacks = jacks_live24ext;
 438         else
 439                 return;
 440
 441         for (i = 0; jacks[i].name; ++i) {
 442                 snd_iprintf(buffer, "%s: ", jacks[i].name);
 443                 err = snd_usb_lock_shutdown(mixer->chip);
 444                 if (err < 0)
 445                         return;
 446                 err = snd_usb_ctl_msg(mixer->chip->dev,
 447                                       usb_rcvctrlpipe(mixer->chip->dev, 0),
 448                                       UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
 449                                       USB_RECIP_INTERFACE, 0,
 450                                       jacks[i].unitid << 8, buf, 3);
 451                 snd_usb_unlock_shutdown(mixer->chip);
 452                 if (err == 3 && (buf[0] == 3 || buf[0] == 6))
 453                         snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]);
 454                 else
 455                         snd_iprintf(buffer, "?\n");
 456         }
 457 }
 458
 459 /* EMU0204 */
 460 static int snd_emu0204_ch_switch_info(struct snd_kcontrol *kcontrol,
 461                                       struct snd_ctl_elem_info *uinfo)
 462 {
 463         static const char * const texts[2] = {"1/2", "3/4"};
 464
 465         return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
 466 }
 467
 468 static int snd_emu0204_ch_switch_get(struct snd_kcontrol *kcontrol,
 469                                      struct snd_ctl_elem_value *ucontrol)
 470 {
 471         ucontrol->value.enumerated.item[0] = kcontrol->private_value;
 472         return 0;
 473 }
 474
 475 static int snd_emu0204_ch_switch_update(struct usb_mixer_interface *mixer,
 476                                         int value)
 477 {
 478         struct snd_usb_audio *chip = mixer->chip;
 479         int err;
 480         unsigned char buf[2];
 481
 482         err = snd_usb_lock_shutdown(chip);
 483         if (err < 0)
 484                 return err;
 485
 486         buf[0] = 0x01;
 487         buf[1] = value ? 0x02 : 0x01;
 488         err = snd_usb_ctl_msg(chip->dev,
 489                       usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR,
 490                       USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
 491                       0x0400, 0x0e00, buf, 2);
 492         snd_usb_unlock_shutdown(chip);
 493         return err;
 494 }
 495
 496 static int snd_emu0204_ch_switch_put(struct snd_kcontrol *kcontrol,
 497                                      struct snd_ctl_elem_value *ucontrol)
 498 {
 499         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
 500         struct usb_mixer_interface *mixer = list->mixer;
 501         unsigned int value = ucontrol->value.enumerated.item[0];
 502         int err;
 503
 504         if (value > 1)
 505                 return -EINVAL;
 506
 507         if (value == kcontrol->private_value)
 508                 return 0;
 509
 510         kcontrol->private_value = value;
 511         err = snd_emu0204_ch_switch_update(mixer, value);
 512         return err < 0 ? err : 1;
 513 }
 514
 515 static int snd_emu0204_ch_switch_resume(struct usb_mixer_elem_list *list)
 516 {
 517         return snd_emu0204_ch_switch_update(list->mixer,
 518                                             list->kctl->private_value);
 519 }
 520
 521 static struct snd_kcontrol_new snd_emu0204_control = {
 522         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 523         .name = "Front Jack Channels",
 524         .info = snd_emu0204_ch_switch_info,
 525         .get = snd_emu0204_ch_switch_get,
 526         .put = snd_emu0204_ch_switch_put,
 527         .private_value = 0,
 528 };
 529
 530 static int snd_emu0204_controls_create(struct usb_mixer_interface *mixer)
 531 {
 532         return add_single_ctl_with_resume(mixer, 0,
 533                                           snd_emu0204_ch_switch_resume,
 534                                           &snd_emu0204_control, NULL);
 535 }
 536
 537 /* ASUS Xonar U1 / U3 controls */
 538
 539 static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
 540                                    struct snd_ctl_elem_value *ucontrol)
 541 {
 542         ucontrol->value.integer.value[0] = !!(kcontrol->private_value & 0x02);
 543         return 0;
 544 }
 545
 546 static int snd_xonar_u1_switch_update(struct usb_mixer_interface *mixer,
 547                                       unsigned char status)
 548 {
 549         struct snd_usb_audio *chip = mixer->chip;
 550         int err;
 551
 552         err = snd_usb_lock_shutdown(chip);
 553         if (err < 0)
 554                 return err;
 555         err = snd_usb_ctl_msg(chip->dev,
 556                               usb_sndctrlpipe(chip->dev, 0), 0x08,
 557                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 558                               50, 0, &status, 1);
 559         snd_usb_unlock_shutdown(chip);
 560         return err;
 561 }
 562
 563 static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol,
 564                                    struct snd_ctl_elem_value *ucontrol)
 565 {
 566         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
 567         u8 old_status, new_status;
 568         int err;
 569
 570         old_status = kcontrol->private_value;
 571         if (ucontrol->value.integer.value[0])
 572                 new_status = old_status | 0x02;
 573         else
 574                 new_status = old_status & ~0x02;
 575         if (new_status == old_status)
 576                 return 0;
 577
 578         kcontrol->private_value = new_status;
 579         err = snd_xonar_u1_switch_update(list->mixer, new_status);
 580         return err < 0 ? err : 1;
 581 }
 582
 583 static int snd_xonar_u1_switch_resume(struct usb_mixer_elem_list *list)
 584 {
 585         return snd_xonar_u1_switch_update(list->mixer,
 586                                           list->kctl->private_value);
 587 }
 588
 589 static struct snd_kcontrol_new snd_xonar_u1_output_switch = {
 590         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 591         .name = "Digital Playback Switch",
 592         .info = snd_ctl_boolean_mono_info,
 593         .get = snd_xonar_u1_switch_get,
 594         .put = snd_xonar_u1_switch_put,
 595         .private_value = 0x05,
 596 };
 597
 598 static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer)
 599 {
 600         return add_single_ctl_with_resume(mixer, 0,
 601                                           snd_xonar_u1_switch_resume,
 602                                           &snd_xonar_u1_output_switch, NULL);
 603 }
 604
 605 /* Digidesign Mbox 1 clock source switch (internal/spdif) */
 606
 607 static int snd_mbox1_switch_get(struct snd_kcontrol *kctl,
 608                                 struct snd_ctl_elem_value *ucontrol)
 609 {
 610         ucontrol->value.enumerated.item[0] = kctl->private_value;
 611         return 0;
 612 }
 613
 614 static int snd_mbox1_switch_update(struct usb_mixer_interface *mixer, int val)
 615 {
 616         struct snd_usb_audio *chip = mixer->chip;
 617         int err;
 618         unsigned char buff[3];
 619
 620         err = snd_usb_lock_shutdown(chip);
 621         if (err < 0)
 622                 return err;
 623
 624         /* Prepare for magic command to toggle clock source */
 625         err = snd_usb_ctl_msg(chip->dev,
 626                                 usb_rcvctrlpipe(chip->dev, 0), 0x81,
 627                                 USB_DIR_IN |
 628                                 USB_TYPE_CLASS |
 629                                 USB_RECIP_INTERFACE, 0x00, 0x500, buff, 1);
 630         if (err < 0)
 631                 goto err;
 632         err = snd_usb_ctl_msg(chip->dev,
 633                                 usb_rcvctrlpipe(chip->dev, 0), 0x81,
 634                                 USB_DIR_IN |
 635                                 USB_TYPE_CLASS |
 636                                 USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
 637         if (err < 0)
 638                 goto err;
 639
 640         /* 2 possibilities:     Internal    -> send sample rate
 641          *                      S/PDIF sync -> send zeroes
 642          * NB: Sample rate locked to 48kHz on purpose to
 643          *     prevent user from resetting the sample rate
 644          *     while S/PDIF sync is enabled and confusing
 645          *     this configuration.
 646          */
 647         if (val == 0) {
 648                 buff[0] = 0x80;
 649                 buff[1] = 0xbb;
 650                 buff[2] = 0x00;
 651         } else {
 652                 buff[0] = buff[1] = buff[2] = 0x00;
 653         }
 654
 655         /* Send the magic command to toggle the clock source */
 656         err = snd_usb_ctl_msg(chip->dev,
 657                                 usb_sndctrlpipe(chip->dev, 0), 0x1,
 658                                 USB_TYPE_CLASS |
 659                                 USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
 660         if (err < 0)
 661                 goto err;
 662         err = snd_usb_ctl_msg(chip->dev,
 663                                 usb_rcvctrlpipe(chip->dev, 0), 0x81,
 664                                 USB_DIR_IN |
 665                                 USB_TYPE_CLASS |
 666                                 USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
 667         if (err < 0)
 668                 goto err;
 669         err = snd_usb_ctl_msg(chip->dev,
 670                                 usb_rcvctrlpipe(chip->dev, 0), 0x81,
 671                                 USB_DIR_IN |
 672                                 USB_TYPE_CLASS |
 673                                 USB_RECIP_ENDPOINT, 0x100, 0x2, buff, 3);
 674         if (err < 0)
 675                 goto err;
 676
 677 err:
 678         snd_usb_unlock_shutdown(chip);
 679         return err;
 680 }
 681
 682 static int snd_mbox1_switch_put(struct snd_kcontrol *kctl,
 683                                 struct snd_ctl_elem_value *ucontrol)
 684 {
 685         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
 686         struct usb_mixer_interface *mixer = list->mixer;
 687         int err;
 688         bool cur_val, new_val;
 689
 690         cur_val = kctl->private_value;
 691         new_val = ucontrol->value.enumerated.item[0];
 692         if (cur_val == new_val)
 693                 return 0;
 694
 695         kctl->private_value = new_val;
 696         err = snd_mbox1_switch_update(mixer, new_val);
 697         return err < 0 ? err : 1;
 698 }
 699
 700 static int snd_mbox1_switch_info(struct snd_kcontrol *kcontrol,
 701                                  struct snd_ctl_elem_info *uinfo)
 702 {
 703         static const char *const texts[2] = {
 704                 "Internal",
 705                 "S/PDIF"
 706         };
 707
 708         return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
 709 }
 710
 711 static int snd_mbox1_switch_resume(struct usb_mixer_elem_list *list)
 712 {
 713         return snd_mbox1_switch_update(list->mixer, list->kctl->private_value);
 714 }
 715
 716 static struct snd_kcontrol_new snd_mbox1_switch = {
 717         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 718         .name = "Clock Source",
 719         .index = 0,
 720         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 721         .info = snd_mbox1_switch_info,
 722         .get = snd_mbox1_switch_get,
 723         .put = snd_mbox1_switch_put,
 724         .private_value = 0
 725 };
 726
 727 static int snd_mbox1_create_sync_switch(struct usb_mixer_interface *mixer)
 728 {
 729         return add_single_ctl_with_resume(mixer, 0,
 730                                           snd_mbox1_switch_resume,
 731                                           &snd_mbox1_switch, NULL);
 732 }
 733
 734 /* Native Instruments device quirks */
 735
 736 #define _MAKE_NI_CONTROL(bRequest,wIndex) ((bRequest) << 16 | (wIndex))
 737
 738 static int snd_ni_control_init_val(struct usb_mixer_interface *mixer,
 739                                    struct snd_kcontrol *kctl)
 740 {
 741         struct usb_device *dev = mixer->chip->dev;
 742         unsigned int pval = kctl->private_value;
 743         u8 value;
 744         int err;
 745
 746         err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
 747                               (pval >> 16) & 0xff,
 748                               USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 749                               0, pval & 0xffff, &value, 1);
 750         if (err < 0) {
 751                 dev_err(&dev->dev,
 752                         "unable to issue vendor read request (ret = %d)", err);
 753                 return err;
 754         }
 755
 756         kctl->private_value |= ((unsigned int)value << 24);
 757         return 0;
 758 }
 759
 760 static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol,
 761                                              struct snd_ctl_elem_value *ucontrol)
 762 {
 763         ucontrol->value.integer.value[0] = kcontrol->private_value >> 24;
 764         return 0;
 765 }
 766
 767 static int snd_ni_update_cur_val(struct usb_mixer_elem_list *list)
 768 {
 769         struct snd_usb_audio *chip = list->mixer->chip;
 770         unsigned int pval = list->kctl->private_value;
 771         int err;
 772
 773         err = snd_usb_lock_shutdown(chip);
 774         if (err < 0)
 775                 return err;
 776         err = usb_control_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0),
 777                               (pval >> 16) & 0xff,
 778                               USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 779                               pval >> 24, pval & 0xffff, NULL, 0, 1000);
 780         snd_usb_unlock_shutdown(chip);
 781         return err;
 782 }
 783
 784 static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
 785                                              struct snd_ctl_elem_value *ucontrol)
 786 {
 787         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
 788         u8 oldval = (kcontrol->private_value >> 24) & 0xff;
 789         u8 newval = ucontrol->value.integer.value[0];
 790         int err;
 791
 792         if (oldval == newval)
 793                 return 0;
 794
 795         kcontrol->private_value &= ~(0xff << 24);
 796         kcontrol->private_value |= (unsigned int)newval << 24;
 797         err = snd_ni_update_cur_val(list);
 798         return err < 0 ? err : 1;
 799 }
 800
 801 static struct snd_kcontrol_new snd_nativeinstruments_ta6_mixers[] = {
 802         {
 803                 .name = "Direct Thru Channel A",
 804                 .private_value = _MAKE_NI_CONTROL(0x01, 0x03),
 805         },
 806         {
 807                 .name = "Direct Thru Channel B",
 808                 .private_value = _MAKE_NI_CONTROL(0x01, 0x05),
 809         },
 810         {
 811                 .name = "Phono Input Channel A",
 812                 .private_value = _MAKE_NI_CONTROL(0x02, 0x03),
 813         },
 814         {
 815                 .name = "Phono Input Channel B",
 816                 .private_value = _MAKE_NI_CONTROL(0x02, 0x05),
 817         },
 818 };
 819
 820 static struct snd_kcontrol_new snd_nativeinstruments_ta10_mixers[] = {
 821         {
 822                 .name = "Direct Thru Channel A",
 823                 .private_value = _MAKE_NI_CONTROL(0x01, 0x03),
 824         },
 825         {
 826                 .name = "Direct Thru Channel B",
 827                 .private_value = _MAKE_NI_CONTROL(0x01, 0x05),
 828         },
 829         {
 830                 .name = "Direct Thru Channel C",
 831                 .private_value = _MAKE_NI_CONTROL(0x01, 0x07),
 832         },
 833         {
 834                 .name = "Direct Thru Channel D",
 835                 .private_value = _MAKE_NI_CONTROL(0x01, 0x09),
 836         },
 837         {
 838                 .name = "Phono Input Channel A",
 839                 .private_value = _MAKE_NI_CONTROL(0x02, 0x03),
 840         },
 841         {
 842                 .name = "Phono Input Channel B",
 843                 .private_value = _MAKE_NI_CONTROL(0x02, 0x05),
 844         },
 845         {
 846                 .name = "Phono Input Channel C",
 847                 .private_value = _MAKE_NI_CONTROL(0x02, 0x07),
 848         },
 849         {
 850                 .name = "Phono Input Channel D",
 851                 .private_value = _MAKE_NI_CONTROL(0x02, 0x09),
 852         },
 853 };
 854
 855 static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer,
 856                                               const struct snd_kcontrol_new *kc,
 857                                               unsigned int count)
 858 {
 859         int i, err = 0;
 860         struct snd_kcontrol_new template = {
 861                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 862                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 863                 .get = snd_nativeinstruments_control_get,
 864                 .put = snd_nativeinstruments_control_put,
 865                 .info = snd_ctl_boolean_mono_info,
 866         };
 867
 868         for (i = 0; i < count; i++) {
 869                 struct usb_mixer_elem_list *list;
 870
 871                 template.name = kc[i].name;
 872                 template.private_value = kc[i].private_value;
 873
 874                 err = add_single_ctl_with_resume(mixer, 0,
 875                                                  snd_ni_update_cur_val,
 876                                                  &template, &list);
 877                 if (err < 0)
 878                         break;
 879                 snd_ni_control_init_val(mixer, list->kctl);
 880         }
 881
 882         return err;
 883 }
 884
 885 /* M-Audio FastTrack Ultra quirks */
 886 /* FTU Effect switch (also used by C400/C600) */
 887 static int snd_ftu_eff_switch_info(struct snd_kcontrol *kcontrol,
 888                                         struct snd_ctl_elem_info *uinfo)
 889 {
 890         static const char *const texts[8] = {
 891                 "Room 1", "Room 2", "Room 3", "Hall 1",
 892                 "Hall 2", "Plate", "Delay", "Echo"
 893         };
 894
 895         return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
 896 }
 897
 898 static int snd_ftu_eff_switch_init(struct usb_mixer_interface *mixer,
 899                                    struct snd_kcontrol *kctl)
 900 {
 901         struct usb_device *dev = mixer->chip->dev;
 902         unsigned int pval = kctl->private_value;
 903         int err;
 904         unsigned char value[2];
 905
 906         value[0] = 0x00;
 907         value[1] = 0x00;
 908
 909         err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR,
 910                               USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
 911                               pval & 0xff00,
 912                               snd_usb_ctrl_intf(mixer->chip) | ((pval & 0xff) << 8),
 913                               value, 2);
 914         if (err < 0)
 915                 return err;
 916
 917         kctl->private_value |= (unsigned int)value[0] << 24;
 918         return 0;
 919 }
 920
 921 static int snd_ftu_eff_switch_get(struct snd_kcontrol *kctl,
 922                                         struct snd_ctl_elem_value *ucontrol)
 923 {
 924         ucontrol->value.enumerated.item[0] = kctl->private_value >> 24;
 925         return 0;
 926 }
 927
 928 static int snd_ftu_eff_switch_update(struct usb_mixer_elem_list *list)
 929 {
 930         struct snd_usb_audio *chip = list->mixer->chip;
 931         unsigned int pval = list->kctl->private_value;
 932         unsigned char value[2];
 933         int err;
 934
 935         value[0] = pval >> 24;
 936         value[1] = 0;
 937
 938         err = snd_usb_lock_shutdown(chip);
 939         if (err < 0)
 940                 return err;
 941         err = snd_usb_ctl_msg(chip->dev,
 942                               usb_sndctrlpipe(chip->dev, 0),
 943                               UAC_SET_CUR,
 944                               USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
 945                               pval & 0xff00,
 946                               snd_usb_ctrl_intf(chip) | ((pval & 0xff) << 8),
 947                               value, 2);
 948         snd_usb_unlock_shutdown(chip);
 949         return err;
 950 }
 951
 952 static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl,
 953                                         struct snd_ctl_elem_value *ucontrol)
 954 {
 955         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
 956         unsigned int pval = list->kctl->private_value;
 957         int cur_val, err, new_val;
 958
 959         cur_val = pval >> 24;
 960         new_val = ucontrol->value.enumerated.item[0];
 961         if (cur_val == new_val)
 962                 return 0;
 963
 964         kctl->private_value &= ~(0xff << 24);
 965         kctl->private_value |= new_val << 24;
 966         err = snd_ftu_eff_switch_update(list);
 967         return err < 0 ? err : 1;
 968 }
 969
 970 static int snd_ftu_create_effect_switch(struct usb_mixer_interface *mixer,
 971         int validx, int bUnitID)
 972 {
 973         static struct snd_kcontrol_new template = {
 974                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 975                 .name = "Effect Program Switch",
 976                 .index = 0,
 977                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 978                 .info = snd_ftu_eff_switch_info,
 979                 .get = snd_ftu_eff_switch_get,
 980                 .put = snd_ftu_eff_switch_put
 981         };
 982         struct usb_mixer_elem_list *list;
 983         int err;
 984
 985         err = add_single_ctl_with_resume(mixer, bUnitID,
 986                                          snd_ftu_eff_switch_update,
 987                                          &template, &list);
 988         if (err < 0)
 989                 return err;
 990         list->kctl->private_value = (validx << 8) | bUnitID;
 991         snd_ftu_eff_switch_init(mixer, list->kctl);
 992         return 0;
 993 }
 994
 995 /* Create volume controls for FTU devices*/
 996 static int snd_ftu_create_volume_ctls(struct usb_mixer_interface *mixer)
 997 {
 998         char name[64];
 999         unsigned int control, cmask;
1000         int in, out, err;
1001
1002         const unsigned int id = 5;
1003         const int val_type = USB_MIXER_S16;
1004
1005         for (out = 0; out < 8; out++) {
1006                 control = out + 1;
1007                 for (in = 0; in < 8; in++) {
1008                         cmask = 1 << in;
1009                         snprintf(name, sizeof(name),
1010                                 "AIn%d - Out%d Capture Volume",
1011                                 in  + 1, out + 1);
1012                         err = snd_create_std_mono_ctl(mixer, id, control,
1013                                                         cmask, val_type, name,
1014                                                         &snd_usb_mixer_vol_tlv);
1015                         if (err < 0)
1016                                 return err;
1017                 }
1018                 for (in = 8; in < 16; in++) {
1019                         cmask = 1 << in;
1020                         snprintf(name, sizeof(name),
1021                                 "DIn%d - Out%d Playback Volume",
1022                                 in - 7, out + 1);
1023                         err = snd_create_std_mono_ctl(mixer, id, control,
1024                                                         cmask, val_type, name,
1025                                                         &snd_usb_mixer_vol_tlv);
1026                         if (err < 0)
1027                                 return err;
1028                 }
1029         }
1030
1031         return 0;
1032 }
1033
1034 /* This control needs a volume quirk, see mixer.c */
1035 static int snd_ftu_create_effect_volume_ctl(struct usb_mixer_interface *mixer)
1036 {
1037         static const char name[] = "Effect Volume";
1038         const unsigned int id = 6;
1039         const int val_type = USB_MIXER_U8;
1040         const unsigned int control = 2;
1041         const unsigned int cmask = 0;
1042
1043         return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1044                                         name, snd_usb_mixer_vol_tlv);
1045 }
1046
1047 /* This control needs a volume quirk, see mixer.c */
1048 static int snd_ftu_create_effect_duration_ctl(struct usb_mixer_interface *mixer)
1049 {
1050         static const char name[] = "Effect Duration";
1051         const unsigned int id = 6;
1052         const int val_type = USB_MIXER_S16;
1053         const unsigned int control = 3;
1054         const unsigned int cmask = 0;
1055
1056         return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1057                                         name, snd_usb_mixer_vol_tlv);
1058 }
1059
1060 /* This control needs a volume quirk, see mixer.c */
1061 static int snd_ftu_create_effect_feedback_ctl(struct usb_mixer_interface *mixer)
1062 {
1063         static const char name[] = "Effect Feedback Volume";
1064         const unsigned int id = 6;
1065         const int val_type = USB_MIXER_U8;
1066         const unsigned int control = 4;
1067         const unsigned int cmask = 0;
1068
1069         return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1070                                         name, NULL);
1071 }
1072
1073 static int snd_ftu_create_effect_return_ctls(struct usb_mixer_interface *mixer)
1074 {
1075         unsigned int cmask;
1076         int err, ch;
1077         char name[48];
1078
1079         const unsigned int id = 7;
1080         const int val_type = USB_MIXER_S16;
1081         const unsigned int control = 7;
1082
1083         for (ch = 0; ch < 4; ++ch) {
1084                 cmask = 1 << ch;
1085                 snprintf(name, sizeof(name),
1086                         "Effect Return %d Volume", ch + 1);
1087                 err = snd_create_std_mono_ctl(mixer, id, control,
1088                                                 cmask, val_type, name,
1089                                                 snd_usb_mixer_vol_tlv);
1090                 if (err < 0)
1091                         return err;
1092         }
1093
1094         return 0;
1095 }
1096
1097 static int snd_ftu_create_effect_send_ctls(struct usb_mixer_interface *mixer)
1098 {
1099         unsigned int  cmask;
1100         int err, ch;
1101         char name[48];
1102
1103         const unsigned int id = 5;
1104         const int val_type = USB_MIXER_S16;
1105         const unsigned int control = 9;
1106
1107         for (ch = 0; ch < 8; ++ch) {
1108                 cmask = 1 << ch;
1109                 snprintf(name, sizeof(name),
1110                         "Effect Send AIn%d Volume", ch + 1);
1111                 err = snd_create_std_mono_ctl(mixer, id, control, cmask,
1112                                                 val_type, name,
1113                                                 snd_usb_mixer_vol_tlv);
1114                 if (err < 0)
1115                         return err;
1116         }
1117         for (ch = 8; ch < 16; ++ch) {
1118                 cmask = 1 << ch;
1119                 snprintf(name, sizeof(name),
1120                         "Effect Send DIn%d Volume", ch - 7);
1121                 err = snd_create_std_mono_ctl(mixer, id, control, cmask,
1122                                                 val_type, name,
1123                                                 snd_usb_mixer_vol_tlv);
1124                 if (err < 0)
1125                         return err;
1126         }
1127         return 0;
1128 }
1129
1130 static int snd_ftu_create_mixer(struct usb_mixer_interface *mixer)
1131 {
1132         int err;
1133
1134         err = snd_ftu_create_volume_ctls(mixer);
1135         if (err < 0)
1136                 return err;
1137
1138         err = snd_ftu_create_effect_switch(mixer, 1, 6);
1139         if (err < 0)
1140                 return err;
1141
1142         err = snd_ftu_create_effect_volume_ctl(mixer);
1143         if (err < 0)
1144                 return err;
1145
1146         err = snd_ftu_create_effect_duration_ctl(mixer);
1147         if (err < 0)
1148                 return err;
1149
1150         err = snd_ftu_create_effect_feedback_ctl(mixer);
1151         if (err < 0)
1152                 return err;
1153
1154         err = snd_ftu_create_effect_return_ctls(mixer);
1155         if (err < 0)
1156                 return err;
1157
1158         err = snd_ftu_create_effect_send_ctls(mixer);
1159         if (err < 0)
1160                 return err;
1161
1162         return 0;
1163 }
1164
1165 void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
1166                                unsigned char samplerate_id)
1167 {
1168         struct usb_mixer_interface *mixer;
1169         struct usb_mixer_elem_info *cval;
1170         int unitid = 12; /* SamleRate ExtensionUnit ID */
1171
1172         list_for_each_entry(mixer, &chip->mixer_list, list) {
1173                 cval = (struct usb_mixer_elem_info *)mixer->id_elems[unitid];
1174                 if (cval) {
1175                         snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR,
1176                                                     cval->control << 8,
1177                                                     samplerate_id);
1178                         snd_usb_mixer_notify_id(mixer, unitid);
1179                 }
1180                 break;
1181         }
1182 }
1183
1184 /* M-Audio Fast Track C400/C600 */
1185 /* C400/C600 volume controls, this control needs a volume quirk, see mixer.c */
1186 static int snd_c400_create_vol_ctls(struct usb_mixer_interface *mixer)
1187 {
1188         char name[64];
1189         unsigned int cmask, offset;
1190         int out, chan, err;
1191         int num_outs = 0;
1192         int num_ins = 0;
1193
1194         const unsigned int id = 0x40;
1195         const int val_type = USB_MIXER_S16;
1196         const int control = 1;
1197
1198         switch (mixer->chip->usb_id) {
1199         case USB_ID(0x0763, 0x2030):
1200                 num_outs = 6;
1201                 num_ins = 4;
1202                 break;
1203         case USB_ID(0x0763, 0x2031):
1204                 num_outs = 8;
1205                 num_ins = 6;
1206                 break;
1207         }
1208
1209         for (chan = 0; chan < num_outs + num_ins; chan++) {
1210                 for (out = 0; out < num_outs; out++) {
1211                         if (chan < num_outs) {
1212                                 snprintf(name, sizeof(name),
1213                                         "PCM%d-Out%d Playback Volume",
1214                                         chan + 1, out + 1);
1215                         } else {
1216                                 snprintf(name, sizeof(name),
1217                                         "In%d-Out%d Playback Volume",
1218                                         chan - num_outs + 1, out + 1);
1219                         }
1220
1221                         cmask = (out == 0) ? 0 : 1 << (out - 1);
1222                         offset = chan * num_outs;
1223                         err = snd_create_std_mono_ctl_offset(mixer, id, control,
1224                                                 cmask, val_type, offset, name,
1225                                                 &snd_usb_mixer_vol_tlv);
1226                         if (err < 0)
1227                                 return err;
1228                 }
1229         }
1230
1231         return 0;
1232 }
1233
1234 /* This control needs a volume quirk, see mixer.c */
1235 static int snd_c400_create_effect_volume_ctl(struct usb_mixer_interface *mixer)
1236 {
1237         static const char name[] = "Effect Volume";
1238         const unsigned int id = 0x43;
1239         const int val_type = USB_MIXER_U8;
1240         const unsigned int control = 3;
1241         const unsigned int cmask = 0;
1242
1243         return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1244                                         name, snd_usb_mixer_vol_tlv);
1245 }
1246
1247 /* This control needs a volume quirk, see mixer.c */
1248 static int snd_c400_create_effect_duration_ctl(struct usb_mixer_interface *mixer)
1249 {
1250         static const char name[] = "Effect Duration";
1251         const unsigned int id = 0x43;
1252         const int val_type = USB_MIXER_S16;
1253         const unsigned int control = 4;
1254         const unsigned int cmask = 0;
1255
1256         return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1257                                         name, snd_usb_mixer_vol_tlv);
1258 }
1259
1260 /* This control needs a volume quirk, see mixer.c */
1261 static int snd_c400_create_effect_feedback_ctl(struct usb_mixer_interface *mixer)
1262 {
1263         static const char name[] = "Effect Feedback Volume";
1264         const unsigned int id = 0x43;
1265         const int val_type = USB_MIXER_U8;
1266         const unsigned int control = 5;
1267         const unsigned int cmask = 0;
1268
1269         return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1270                                         name, NULL);
1271 }
1272
1273 static int snd_c400_create_effect_vol_ctls(struct usb_mixer_interface *mixer)
1274 {
1275         char name[64];
1276         unsigned int cmask;
1277         int chan, err;
1278         int num_outs = 0;
1279         int num_ins = 0;
1280
1281         const unsigned int id = 0x42;
1282         const int val_type = USB_MIXER_S16;
1283         const int control = 1;
1284
1285         switch (mixer->chip->usb_id) {
1286         case USB_ID(0x0763, 0x2030):
1287                 num_outs = 6;
1288                 num_ins = 4;
1289                 break;
1290         case USB_ID(0x0763, 0x2031):
1291                 num_outs = 8;
1292                 num_ins = 6;
1293                 break;
1294         }
1295
1296         for (chan = 0; chan < num_outs + num_ins; chan++) {
1297                 if (chan < num_outs) {
1298                         snprintf(name, sizeof(name),
1299                                 "Effect Send DOut%d",
1300                                 chan + 1);
1301                 } else {
1302                         snprintf(name, sizeof(name),
1303                                 "Effect Send AIn%d",
1304                                 chan - num_outs + 1);
1305                 }
1306
1307                 cmask = (chan == 0) ? 0 : 1 << (chan - 1);
1308                 err = snd_create_std_mono_ctl(mixer, id, control,
1309                                                 cmask, val_type, name,
1310                                                 &snd_usb_mixer_vol_tlv);
1311                 if (err < 0)
1312                         return err;
1313         }
1314
1315         return 0;
1316 }
1317
1318 static int snd_c400_create_effect_ret_vol_ctls(struct usb_mixer_interface *mixer)
1319 {
1320         char name[64];
1321         unsigned int cmask;
1322         int chan, err;
1323         int num_outs = 0;
1324         int offset = 0;
1325
1326         const unsigned int id = 0x40;
1327         const int val_type = USB_MIXER_S16;
1328         const int control = 1;
1329
1330         switch (mixer->chip->usb_id) {
1331         case USB_ID(0x0763, 0x2030):
1332                 num_outs = 6;
1333                 offset = 0x3c;
1334                 /* { 0x3c, 0x43, 0x3e, 0x45, 0x40, 0x47 } */
1335                 break;
1336         case USB_ID(0x0763, 0x2031):
1337                 num_outs = 8;
1338                 offset = 0x70;
1339                 /* { 0x70, 0x79, 0x72, 0x7b, 0x74, 0x7d, 0x76, 0x7f } */
1340                 break;
1341         }
1342
1343         for (chan = 0; chan < num_outs; chan++) {
1344                 snprintf(name, sizeof(name),
1345                         "Effect Return %d",
1346                         chan + 1);
1347
1348                 cmask = (chan == 0) ? 0 :
1349                         1 << (chan + (chan % 2) * num_outs - 1);
1350                 err = snd_create_std_mono_ctl_offset(mixer, id, control,
1351                                                 cmask, val_type, offset, name,
1352                                                 &snd_usb_mixer_vol_tlv);
1353                 if (err < 0)
1354                         return err;
1355         }
1356
1357         return 0;
1358 }
1359
1360 static int snd_c400_create_mixer(struct usb_mixer_interface *mixer)
1361 {
1362         int err;
1363
1364         err = snd_c400_create_vol_ctls(mixer);
1365         if (err < 0)
1366                 return err;
1367
1368         err = snd_c400_create_effect_vol_ctls(mixer);
1369         if (err < 0)
1370                 return err;
1371
1372         err = snd_c400_create_effect_ret_vol_ctls(mixer);
1373         if (err < 0)
1374                 return err;
1375
1376         err = snd_ftu_create_effect_switch(mixer, 2, 0x43);
1377         if (err < 0)
1378                 return err;
1379
1380         err = snd_c400_create_effect_volume_ctl(mixer);
1381         if (err < 0)
1382                 return err;
1383
1384         err = snd_c400_create_effect_duration_ctl(mixer);
1385         if (err < 0)
1386                 return err;
1387
1388         err = snd_c400_create_effect_feedback_ctl(mixer);
1389         if (err < 0)
1390                 return err;
1391
1392         return 0;
1393 }
1394
1395 /*
1396  * The mixer units for Ebox-44 are corrupt, and even where they
1397  * are valid they presents mono controls as L and R channels of
1398  * stereo. So we provide a good mixer here.
1399  */
1400 static struct std_mono_table ebox44_table[] = {
1401         {
1402                 .unitid = 4,
1403                 .control = 1,
1404                 .cmask = 0x0,
1405                 .val_type = USB_MIXER_INV_BOOLEAN,
1406                 .name = "Headphone Playback Switch"
1407         },
1408         {
1409                 .unitid = 4,
1410                 .control = 2,
1411                 .cmask = 0x1,
1412                 .val_type = USB_MIXER_S16,
1413                 .name = "Headphone A Mix Playback Volume"
1414         },
1415         {
1416                 .unitid = 4,
1417                 .control = 2,
1418                 .cmask = 0x2,
1419                 .val_type = USB_MIXER_S16,
1420                 .name = "Headphone B Mix Playback Volume"
1421         },
1422
1423         {
1424                 .unitid = 7,
1425                 .control = 1,
1426                 .cmask = 0x0,
1427                 .val_type = USB_MIXER_INV_BOOLEAN,
1428                 .name = "Output Playback Switch"
1429         },
1430         {
1431                 .unitid = 7,
1432                 .control = 2,
1433                 .cmask = 0x1,
1434                 .val_type = USB_MIXER_S16,
1435                 .name = "Output A Playback Volume"
1436         },
1437         {
1438                 .unitid = 7,
1439                 .control = 2,
1440                 .cmask = 0x2,
1441                 .val_type = USB_MIXER_S16,
1442                 .name = "Output B Playback Volume"
1443         },
1444
1445         {
1446                 .unitid = 10,
1447                 .control = 1,
1448                 .cmask = 0x0,
1449                 .val_type = USB_MIXER_INV_BOOLEAN,
1450                 .name = "Input Capture Switch"
1451         },
1452         {
1453                 .unitid = 10,
1454                 .control = 2,
1455                 .cmask = 0x1,
1456                 .val_type = USB_MIXER_S16,
1457                 .name = "Input A Capture Volume"
1458         },
1459         {
1460                 .unitid = 10,
1461                 .control = 2,
1462                 .cmask = 0x2,
1463                 .val_type = USB_MIXER_S16,
1464                 .name = "Input B Capture Volume"
1465         },
1466
1467         {}
1468 };
1469
1470 /* Audio Advantage Micro II findings:
1471  *
1472  * Mapping spdif AES bits to vendor register.bit:
1473  * AES0: [0 0 0 0 2.3 2.2 2.1 2.0] - default 0x00
1474  * AES1: [3.3 3.2.3.1.3.0 2.7 2.6 2.5 2.4] - default: 0x01
1475  * AES2: [0 0 0 0 0 0 0 0]
1476  * AES3: [0 0 0 0 0 0 x 0] - 'x' bit is set basing on standard usb request
1477  *                           (UAC_EP_CS_ATTR_SAMPLE_RATE) for Audio Devices
1478  *
1479  * power on values:
1480  * r2: 0x10
1481  * r3: 0x20 (b7 is zeroed just before playback (except IEC61937) and set
1482  *           just after it to 0xa0, presumably it disables/mutes some analog
1483  *           parts when there is no audio.)
1484  * r9: 0x28
1485  *
1486  * Optical transmitter on/off:
1487  * vendor register.bit: 9.1
1488  * 0 - on (0x28 register value)
1489  * 1 - off (0x2a register value)
1490  *
1491  */
1492 static int snd_microii_spdif_info(struct snd_kcontrol *kcontrol,
1493         struct snd_ctl_elem_info *uinfo)
1494 {
1495         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1496         uinfo->count = 1;
1497         return 0;
1498 }
1499
1500 static int snd_microii_spdif_default_get(struct snd_kcontrol *kcontrol,
1501         struct snd_ctl_elem_value *ucontrol)
1502 {
1503         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1504         struct snd_usb_audio *chip = list->mixer->chip;
1505         int err;
1506         struct usb_interface *iface;
1507         struct usb_host_interface *alts;
1508         unsigned int ep;
1509         unsigned char data[3];
1510         int rate;
1511
1512         err = snd_usb_lock_shutdown(chip);
1513         if (err < 0)
1514                 return err;
1515
1516         ucontrol->value.iec958.status[0] = kcontrol->private_value & 0xff;
1517         ucontrol->value.iec958.status[1] = (kcontrol->private_value >> 8) & 0xff;
1518         ucontrol->value.iec958.status[2] = 0x00;
1519
1520         /* use known values for that card: interface#1 altsetting#1 */
1521         iface = usb_ifnum_to_if(chip->dev, 1);
1522         if (!iface || iface->num_altsetting < 2) {
1523                 err = -EINVAL;
1524                 goto end;
1525         }
1526         alts = &iface->altsetting[1];
1527         if (get_iface_desc(alts)->bNumEndpoints < 1) {
1528                 err = -EINVAL;
1529                 goto end;
1530         }
1531         ep = get_endpoint(alts, 0)->bEndpointAddress;
1532
1533         err = snd_usb_ctl_msg(chip->dev,
1534                         usb_rcvctrlpipe(chip->dev, 0),
1535                         UAC_GET_CUR,
1536                         USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN,
1537                         UAC_EP_CS_ATTR_SAMPLE_RATE << 8,
1538                         ep,
1539                         data,
1540                         sizeof(data));
1541         if (err < 0)
1542                 goto end;
1543
1544         rate = data[0] | (data[1] << 8) | (data[2] << 16);
1545         ucontrol->value.iec958.status[3] = (rate == 48000) ?
1546                         IEC958_AES3_CON_FS_48000 : IEC958_AES3_CON_FS_44100;
1547
1548         err = 0;
1549  end:
1550         snd_usb_unlock_shutdown(chip);
1551         return err;
1552 }
1553
1554 static int snd_microii_spdif_default_update(struct usb_mixer_elem_list *list)
1555 {
1556         struct snd_usb_audio *chip = list->mixer->chip;
1557         unsigned int pval = list->kctl->private_value;
1558         u8 reg;
1559         int err;
1560
1561         err = snd_usb_lock_shutdown(chip);
1562         if (err < 0)
1563                 return err;
1564
1565         reg = ((pval >> 4) & 0xf0) | (pval & 0x0f);
1566         err = snd_usb_ctl_msg(chip->dev,
1567                         usb_sndctrlpipe(chip->dev, 0),
1568                         UAC_SET_CUR,
1569                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
1570                         reg,
1571                         2,
1572                         NULL,
1573                         0);
1574         if (err < 0)
1575                 goto end;
1576
1577         reg = (pval & IEC958_AES0_NONAUDIO) ? 0xa0 : 0x20;
1578         reg |= (pval >> 12) & 0x0f;
1579         err = snd_usb_ctl_msg(chip->dev,
1580                         usb_sndctrlpipe(chip->dev, 0),
1581                         UAC_SET_CUR,
1582                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
1583                         reg,
1584                         3,
1585                         NULL,
1586                         0);
1587         if (err < 0)
1588                 goto end;
1589
1590  end:
1591         snd_usb_unlock_shutdown(chip);
1592         return err;
1593 }
1594
1595 static int snd_microii_spdif_default_put(struct snd_kcontrol *kcontrol,
1596         struct snd_ctl_elem_value *ucontrol)
1597 {
1598         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1599         unsigned int pval, pval_old;
1600         int err;
1601
1602         pval = pval_old = kcontrol->private_value;
1603         pval &= 0xfffff0f0;
1604         pval |= (ucontrol->value.iec958.status[1] & 0x0f) << 8;
1605         pval |= (ucontrol->value.iec958.status[0] & 0x0f);
1606
1607         pval &= 0xffff0fff;
1608         pval |= (ucontrol->value.iec958.status[1] & 0xf0) << 8;
1609
1610         /* The frequency bits in AES3 cannot be set via register access. */
1611
1612         /* Silently ignore any bits from the request that cannot be set. */
1613
1614         if (pval == pval_old)
1615                 return 0;
1616
1617         kcontrol->private_value = pval;
1618         err = snd_microii_spdif_default_update(list);
1619         return err < 0 ? err : 1;
1620 }
1621
1622 static int snd_microii_spdif_mask_get(struct snd_kcontrol *kcontrol,
1623         struct snd_ctl_elem_value *ucontrol)
1624 {
1625         ucontrol->value.iec958.status[0] = 0x0f;
1626         ucontrol->value.iec958.status[1] = 0xff;
1627         ucontrol->value.iec958.status[2] = 0x00;
1628         ucontrol->value.iec958.status[3] = 0x00;
1629
1630         return 0;
1631 }
1632
1633 static int snd_microii_spdif_switch_get(struct snd_kcontrol *kcontrol,
1634         struct snd_ctl_elem_value *ucontrol)
1635 {
1636         ucontrol->value.integer.value[0] = !(kcontrol->private_value & 0x02);
1637
1638         return 0;
1639 }
1640
1641 static int snd_microii_spdif_switch_update(struct usb_mixer_elem_list *list)
1642 {
1643         struct snd_usb_audio *chip = list->mixer->chip;
1644         u8 reg = list->kctl->private_value;
1645         int err;
1646
1647         err = snd_usb_lock_shutdown(chip);
1648         if (err < 0)
1649                 return err;
1650
1651         err = snd_usb_ctl_msg(chip->dev,
1652                         usb_sndctrlpipe(chip->dev, 0),
1653                         UAC_SET_CUR,
1654                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
1655                         reg,
1656                         9,
1657                         NULL,
1658                         0);
1659
1660         snd_usb_unlock_shutdown(chip);
1661         return err;
1662 }
1663
1664 static int snd_microii_spdif_switch_put(struct snd_kcontrol *kcontrol,
1665         struct snd_ctl_elem_value *ucontrol)
1666 {
1667         struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1668         u8 reg;
1669         int err;
1670
1671         reg = ucontrol->value.integer.value[0] ? 0x28 : 0x2a;
1672         if (reg != list->kctl->private_value)
1673                 return 0;
1674
1675         kcontrol->private_value = reg;
1676         err = snd_microii_spdif_switch_update(list);
1677         return err < 0 ? err : 1;
1678 }
1679
1680 static struct snd_kcontrol_new snd_microii_mixer_spdif[] = {
1681         {
1682                 .iface =    SNDRV_CTL_ELEM_IFACE_PCM,
1683                 .name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1684                 .info =     snd_microii_spdif_info,
1685                 .get =      snd_microii_spdif_default_get,
1686                 .put =      snd_microii_spdif_default_put,
1687                 .private_value = 0x00000100UL,/* reset value */
1688         },
1689         {
1690                 .access =   SNDRV_CTL_ELEM_ACCESS_READ,
1691                 .iface =    SNDRV_CTL_ELEM_IFACE_PCM,
1692                 .name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
1693                 .info =     snd_microii_spdif_info,
1694                 .get =      snd_microii_spdif_mask_get,
1695         },
1696         {
1697                 .iface =    SNDRV_CTL_ELEM_IFACE_MIXER,
1698                 .name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
1699                 .info =     snd_ctl_boolean_mono_info,
1700                 .get =      snd_microii_spdif_switch_get,
1701                 .put =      snd_microii_spdif_switch_put,
1702                 .private_value = 0x00000028UL,/* reset value */
1703         }
1704 };
1705
1706 static int snd_microii_controls_create(struct usb_mixer_interface *mixer)
1707 {
1708         int err, i;
1709         static usb_mixer_elem_resume_func_t resume_funcs[] = {
1710                 snd_microii_spdif_default_update,
1711                 NULL,
1712                 snd_microii_spdif_switch_update
1713         };
1714
1715         for (i = 0; i < ARRAY_SIZE(snd_microii_mixer_spdif); ++i) {
1716                 err = add_single_ctl_with_resume(mixer, 0,
1717                                                  resume_funcs[i],
1718                                                  &snd_microii_mixer_spdif[i],
1719                                                  NULL);
1720                 if (err < 0)
1721                         return err;
1722         }
1723
1724         return 0;
1725 }
1726
1727 int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
1728 {
1729         int err = 0;
1730         struct snd_info_entry *entry;
1731
1732         if ((err = snd_usb_soundblaster_remote_init(mixer)) < 0)
1733                 return err;
1734
1735         switch (mixer->chip->usb_id) {
1736         case USB_ID(0x041e, 0x3020):
1737         case USB_ID(0x041e, 0x3040):
1738         case USB_ID(0x041e, 0x3042):
1739         case USB_ID(0x041e, 0x30df):
1740         case USB_ID(0x041e, 0x3048):
1741                 err = snd_audigy2nx_controls_create(mixer);
1742                 if (err < 0)
1743                         break;
1744                 if (!snd_card_proc_new(mixer->chip->card, "audigy2nx", &entry))
1745                         snd_info_set_text_ops(entry, mixer,
1746                                               snd_audigy2nx_proc_read);
1747                 break;
1748
1749         /* EMU0204 */
1750         case USB_ID(0x041e, 0x3f19):
1751                 err = snd_emu0204_controls_create(mixer);
1752                 if (err < 0)
1753                         break;
1754                 break;
1755
1756         case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */
1757         case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C400 */
1758                 err = snd_c400_create_mixer(mixer);
1759                 break;
1760
1761         case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
1762         case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
1763                 err = snd_ftu_create_mixer(mixer);
1764                 break;
1765
1766         case USB_ID(0x0b05, 0x1739): /* ASUS Xonar U1 */
1767         case USB_ID(0x0b05, 0x1743): /* ASUS Xonar U1 (2) */
1768         case USB_ID(0x0b05, 0x17a0): /* ASUS Xonar U3 */
1769                 err = snd_xonar_u1_controls_create(mixer);
1770                 break;
1771
1772         case USB_ID(0x0d8c, 0x0103): /* Audio Advantage Micro II */
1773                 err = snd_microii_controls_create(mixer);
1774                 break;
1775
1776         case USB_ID(0x0dba, 0x1000): /* Digidesign Mbox 1 */
1777                 err = snd_mbox1_create_sync_switch(mixer);
1778                 break;
1779
1780         case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */
1781                 err = snd_nativeinstruments_create_mixer(mixer,
1782                                 snd_nativeinstruments_ta6_mixers,
1783                                 ARRAY_SIZE(snd_nativeinstruments_ta6_mixers));
1784                 break;
1785
1786         case USB_ID(0x17cc, 0x1021): /* Traktor Audio 10 */
1787                 err = snd_nativeinstruments_create_mixer(mixer,
1788                                 snd_nativeinstruments_ta10_mixers,
1789                                 ARRAY_SIZE(snd_nativeinstruments_ta10_mixers));
1790                 break;
1791
1792         case USB_ID(0x200c, 0x1018): /* Electrix Ebox-44 */
1793                 /* detection is disabled in mixer_maps.c */
1794                 err = snd_create_std_mono_table(mixer, ebox44_table);
1795                 break;
1796
1797         case USB_ID(0x1235, 0x8012): /* Focusrite Scarlett 6i6 */
1798         case USB_ID(0x1235, 0x8002): /* Focusrite Scarlett 8i6 */
1799         case USB_ID(0x1235, 0x8004): /* Focusrite Scarlett 18i6 */
1800         case USB_ID(0x1235, 0x8014): /* Focusrite Scarlett 18i8 */
1801         case USB_ID(0x1235, 0x800c): /* Focusrite Scarlett 18i20 */
1802                 err = snd_scarlett_controls_create(mixer);
1803                 break;
1804         }
1805
1806         return err;
1807 }
1808
1809 void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
1810                                     int unitid)
1811 {
1812         if (!mixer->rc_cfg)
1813                 return;
1814         /* unit ids specific to Extigy/Audigy 2 NX: */
1815         switch (unitid) {
1816         case 0: /* remote control */
1817                 mixer->rc_urb->dev = mixer->chip->dev;
1818                 usb_submit_urb(mixer->rc_urb, GFP_ATOMIC);
1819                 break;
1820         case 4: /* digital in jack */
1821         case 7: /* line in jacks */
1822         case 19: /* speaker out jacks */
1823         case 20: /* headphones out jack */
1824                 break;
1825         /* live24ext: 4 = line-in jack */
1826         case 3: /* hp-out jack (may actuate Mute) */
1827                 if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
1828                     mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
1829                         snd_usb_mixer_notify_id(mixer, mixer->rc_cfg->mute_mixer_id);
1830                 break;
1831         default:
1832                 usb_audio_dbg(mixer->chip, "memory change in unknown unit %d\n", unitid);
1833                 break;
1834         }
1835 }
1836
1837 static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer,
1838                                          struct usb_mixer_elem_info *cval,
1839                                          struct snd_kcontrol *kctl)
1840 {
1841         /* Approximation using 10 ranges based on output measurement on hw v1.2.
1842          * This seems close to the cubic mapping e.g. alsamixer uses. */
1843         static const DECLARE_TLV_DB_RANGE(scale,
1844                  0,  1, TLV_DB_MINMAX_ITEM(-5300, -4970),
1845                  2,  5, TLV_DB_MINMAX_ITEM(-4710, -4160),
1846                  6,  7, TLV_DB_MINMAX_ITEM(-3884, -3710),
1847                  8, 14, TLV_DB_MINMAX_ITEM(-3443, -2560),
1848                 15, 16, TLV_DB_MINMAX_ITEM(-2475, -2324),
1849                 17, 19, TLV_DB_MINMAX_ITEM(-2228, -2031),
1850                 20, 26, TLV_DB_MINMAX_ITEM(-1910, -1393),
1851                 27, 31, TLV_DB_MINMAX_ITEM(-1322, -1032),
1852                 32, 40, TLV_DB_MINMAX_ITEM(-968, -490),
1853                 41, 50, TLV_DB_MINMAX_ITEM(-441, 0),
1854         );
1855
1856         if (cval->min == 0 && cval->max == 50) {
1857                 usb_audio_info(mixer->chip, "applying DragonFly dB scale quirk (0-50 variant)\n");
1858                 kctl->tlv.p = scale;
1859                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1860                 kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
1861
1862         } else if (cval->min == 0 && cval->max <= 1000) {
1863                 /* Some other clearly broken DragonFly variant.
1864                  * At least a 0..53 variant (hw v1.0) exists.
1865                  */
1866                 usb_audio_info(mixer->chip, "ignoring too narrow dB range on a DragonFly device");
1867                 kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
1868         }
1869 }
1870
1871 void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
1872                                   struct usb_mixer_elem_info *cval, int unitid,
1873                                   struct snd_kcontrol *kctl)
1874 {
1875         switch (mixer->chip->usb_id) {
1876         case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */
1877                 if (unitid == 7 && cval->control == UAC_FU_VOLUME)
1878                         snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
1879                 break;
1880         /* lowest playback value is muted on C-Media devices */
1881         case USB_ID(0x0d8c, 0x000c):
1882         case USB_ID(0x0d8c, 0x0014):
1883                 if (strstr(kctl->id.name, "Playback"))
1884                         cval->min_mute = 1;
1885                 break;
1886         }
1887 }
1888