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  *
  13  *   This program is free software; you can redistribute it and/or modify
  14  *   it under the terms of the GNU General Public License as published by
  15  *   the Free Software Foundation; either version 2 of the License, or
  16  *   (at your option) any later version.
  17  *
  18  *   This program is distributed in the hope that it will be useful,
  19  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *   GNU General Public License for more details.
  22  *
  23  *   You should have received a copy of the GNU General Public License
  24  *   along with this program; if not, write to the Free Software
  25  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26  */
  27
  28 #include <linux/init.h>
  29 #include <linux/slab.h>
  30 #include <linux/usb.h>
  31 #include <linux/usb/audio.h>
  32
  33 #include <sound/core.h>
  34 #include <sound/control.h>
  35 #include <sound/hwdep.h>
  36 #include <sound/info.h>
  37 #include <sound/tlv.h>
  38
  39 #include "usbaudio.h"
  40 #include "mixer.h"
  41 #include "mixer_quirks.h"
  42 #include "helper.h"
  43
  44 extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl;
  45
  46 /*
  47  * Sound Blaster remote control configuration
  48  *
  49  * format of remote control data:
  50  * Extigy:       xx 00
  51  * Audigy 2 NX:  06 80 xx 00 00 00
  52  * Live! 24-bit: 06 80 xx yy 22 83
  53  */
  54 static const struct rc_config {
  55         u32 usb_id;
  56         u8  offset;
  57         u8  length;
  58         u8  packet_length;
  59         u8  min_packet_length; /* minimum accepted length of the URB result */
  60         u8  mute_mixer_id;
  61         u32 mute_code;
  62 } rc_configs[] = {
  63         { USB_ID(0x041e, 0x3000), 0, 1, 2, 1,  18, 0x0013 }, /* Extigy       */
  64         { USB_ID(0x041e, 0x3020), 2, 1, 6, 6,  18, 0x0013 }, /* Audigy 2 NX  */
  65         { USB_ID(0x041e, 0x3040), 2, 2, 6, 6,  2,  0x6e91 }, /* Live! 24-bit */
  66         { USB_ID(0x041e, 0x3042), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 */
  67         { USB_ID(0x041e, 0x30df), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
  68         { USB_ID(0x041e, 0x3237), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
  69         { USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */
  70 };
  71
  72 static void snd_usb_soundblaster_remote_complete(struct urb *urb)
  73 {
  74         struct usb_mixer_interface *mixer = urb->context;
  75         const struct rc_config *rc = mixer->rc_cfg;
  76         u32 code;
  77
  78         if (urb->status < 0 || urb->actual_length < rc->min_packet_length)
  79                 return;
  80
  81         code = mixer->rc_buffer[rc->offset];
  82         if (rc->length == 2)
  83                 code |= mixer->rc_buffer[rc->offset + 1] << 8;
  84
  85         /* the Mute button actually changes the mixer control */
  86         if (code == rc->mute_code)
  87                 snd_usb_mixer_notify_id(mixer, rc->mute_mixer_id);
  88         mixer->rc_code = code;
  89         wmb();
  90         wake_up(&mixer->rc_waitq);
  91 }
  92
  93 static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
  94                                      long count, loff_t *offset)
  95 {
  96         struct usb_mixer_interface *mixer = hw->private_data;
  97         int err;
  98         u32 rc_code;
  99
 100         if (count != 1 && count != 4)
 101                 return -EINVAL;
 102         err = wait_event_interruptible(mixer->rc_waitq,
 103                                        (rc_code = xchg(&mixer->rc_code, 0)) != 0);
 104         if (err == 0) {
 105                 if (count == 1)
 106                         err = put_user(rc_code, buf);
 107                 else
 108                         err = put_user(rc_code, (u32 __user *)buf);
 109         }
 110         return err < 0 ? err : count;
 111 }
 112
 113 static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file,
 114                                             poll_table *wait)
 115 {
 116         struct usb_mixer_interface *mixer = hw->private_data;
 117
 118         poll_wait(file, &mixer->rc_waitq, wait);
 119         return mixer->rc_code ? POLLIN | POLLRDNORM : 0;
 120 }
 121
 122 static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
 123 {
 124         struct snd_hwdep *hwdep;
 125         int err, len, i;
 126
 127         for (i = 0; i < ARRAY_SIZE(rc_configs); ++i)
 128                 if (rc_configs[i].usb_id == mixer->chip->usb_id)
 129                         break;
 130         if (i >= ARRAY_SIZE(rc_configs))
 131                 return 0;
 132         mixer->rc_cfg = &rc_configs[i];
 133
 134         len = mixer->rc_cfg->packet_length;
 135
 136         init_waitqueue_head(&mixer->rc_waitq);
 137         err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep);
 138         if (err < 0)
 139                 return err;
 140         snprintf(hwdep->name, sizeof(hwdep->name),
 141                  "%s remote control", mixer->chip->card->shortname);
 142         hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC;
 143         hwdep->private_data = mixer;
 144         hwdep->ops.read = snd_usb_sbrc_hwdep_read;
 145         hwdep->ops.poll = snd_usb_sbrc_hwdep_poll;
 146         hwdep->exclusive = 1;
 147
 148         mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL);
 149         if (!mixer->rc_urb)
 150                 return -ENOMEM;
 151         mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL);
 152         if (!mixer->rc_setup_packet) {
 153                 usb_free_urb(mixer->rc_urb);
 154                 mixer->rc_urb = NULL;
 155                 return -ENOMEM;
 156         }
 157         mixer->rc_setup_packet->bRequestType =
 158                 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
 159         mixer->rc_setup_packet->bRequest = UAC_GET_MEM;
 160         mixer->rc_setup_packet->wValue = cpu_to_le16(0);
 161         mixer->rc_setup_packet->wIndex = cpu_to_le16(0);
 162         mixer->rc_setup_packet->wLength = cpu_to_le16(len);
 163         usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev,
 164                              usb_rcvctrlpipe(mixer->chip->dev, 0),
 165                              (u8*)mixer->rc_setup_packet, mixer->rc_buffer, len,
 166                              snd_usb_soundblaster_remote_complete, mixer);
 167         return 0;
 168 }
 169
 170 #define snd_audigy2nx_led_info          snd_ctl_boolean_mono_info
 171
 172 static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 173 {
 174         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 175         int index = kcontrol->private_value;
 176
 177         ucontrol->value.integer.value[0] = mixer->audigy2nx_leds[index];
 178         return 0;
 179 }
 180
 181 static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 182 {
 183         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 184         int index = kcontrol->private_value;
 185         int value = ucontrol->value.integer.value[0];
 186         int err, changed;
 187
 188         if (value > 1)
 189                 return -EINVAL;
 190         changed = value != mixer->audigy2nx_leds[index];
 191         down_read(&mixer->chip->shutdown_rwsem);
 192         if (mixer->chip->shutdown) {
 193                 err = -ENODEV;
 194                 goto out;
 195         }
 196         if (mixer->chip->usb_id == USB_ID(0x041e, 0x3042))
 197                 err = snd_usb_ctl_msg(mixer->chip->dev,
 198                               usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
 199                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 200                               !value, 0, NULL, 0);
 201         /* USB X-Fi S51 Pro */
 202         if (mixer->chip->usb_id == USB_ID(0x041e, 0x30df))
 203                 err = snd_usb_ctl_msg(mixer->chip->dev,
 204                               usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
 205                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 206                               !value, 0, NULL, 0);
 207         else
 208                 err = snd_usb_ctl_msg(mixer->chip->dev,
 209                               usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
 210                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 211                               value, index + 2, NULL, 0);
 212  out:
 213         up_read(&mixer->chip->shutdown_rwsem);
 214         if (err < 0)
 215                 return err;
 216         mixer->audigy2nx_leds[index] = value;
 217         return changed;
 218 }
 219
 220 static struct snd_kcontrol_new snd_audigy2nx_controls[] = {
 221         {
 222                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 223                 .name = "CMSS LED Switch",
 224                 .info = snd_audigy2nx_led_info,
 225                 .get = snd_audigy2nx_led_get,
 226                 .put = snd_audigy2nx_led_put,
 227                 .private_value = 0,
 228         },
 229         {
 230                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 231                 .name = "Power LED Switch",
 232                 .info = snd_audigy2nx_led_info,
 233                 .get = snd_audigy2nx_led_get,
 234                 .put = snd_audigy2nx_led_put,
 235                 .private_value = 1,
 236         },
 237         {
 238                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 239                 .name = "Dolby Digital LED Switch",
 240                 .info = snd_audigy2nx_led_info,
 241                 .get = snd_audigy2nx_led_get,
 242                 .put = snd_audigy2nx_led_put,
 243                 .private_value = 2,
 244         },
 245 };
 246
 247 static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
 248 {
 249         int i, err;
 250
 251         for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_controls); ++i) {
 252                 /* USB X-Fi S51 doesn't have a CMSS LED */
 253                 if ((mixer->chip->usb_id == USB_ID(0x041e, 0x3042)) && i == 0)
 254                         continue;
 255                 /* USB X-Fi S51 Pro doesn't have one either */
 256                 if ((mixer->chip->usb_id == USB_ID(0x041e, 0x30df)) && i == 0)
 257                         continue;
 258                 if (i > 1 && /* Live24ext has 2 LEDs only */
 259                         (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 260                          mixer->chip->usb_id == USB_ID(0x041e, 0x3042) ||
 261                          mixer->chip->usb_id == USB_ID(0x041e, 0x30df) ||
 262                          mixer->chip->usb_id == USB_ID(0x041e, 0x3048)))
 263                         break;
 264                 err = snd_ctl_add(mixer->chip->card,
 265                                   snd_ctl_new1(&snd_audigy2nx_controls[i], mixer));
 266                 if (err < 0)
 267                         return err;
 268         }
 269         mixer->audigy2nx_leds[1] = 1; /* Power LED is on by default */
 270         return 0;
 271 }
 272
 273 static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
 274                                     struct snd_info_buffer *buffer)
 275 {
 276         static const struct sb_jack {
 277                 int unitid;
 278                 const char *name;
 279         }  jacks_audigy2nx[] = {
 280                 {4,  "dig in "},
 281                 {7,  "line in"},
 282                 {19, "spk out"},
 283                 {20, "hph out"},
 284                 {-1, NULL}
 285         }, jacks_live24ext[] = {
 286                 {4,  "line in"}, /* &1=Line, &2=Mic*/
 287                 {3,  "hph out"}, /* headphones */
 288                 {0,  "RC     "}, /* last command, 6 bytes see rc_config above */
 289                 {-1, NULL}
 290         };
 291         const struct sb_jack *jacks;
 292         struct usb_mixer_interface *mixer = entry->private_data;
 293         int i, err;
 294         u8 buf[3];
 295
 296         snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname);
 297         if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020))
 298                 jacks = jacks_audigy2nx;
 299         else if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 300                  mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
 301                 jacks = jacks_live24ext;
 302         else
 303                 return;
 304
 305         for (i = 0; jacks[i].name; ++i) {
 306                 snd_iprintf(buffer, "%s: ", jacks[i].name);
 307                 down_read(&mixer->chip->shutdown_rwsem);
 308                 if (mixer->chip->shutdown)
 309                         err = 0;
 310                 else
 311                         err = snd_usb_ctl_msg(mixer->chip->dev,
 312                                       usb_rcvctrlpipe(mixer->chip->dev, 0),
 313                                       UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
 314                                       USB_RECIP_INTERFACE, 0,
 315                                       jacks[i].unitid << 8, buf, 3);
 316                 up_read(&mixer->chip->shutdown_rwsem);
 317                 if (err == 3 && (buf[0] == 3 || buf[0] == 6))
 318                         snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]);
 319                 else
 320                         snd_iprintf(buffer, "?\n");
 321         }
 322 }
 323
 324 static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
 325                                    struct snd_ctl_elem_value *ucontrol)
 326 {
 327         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 328
 329         ucontrol->value.integer.value[0] = !!(mixer->xonar_u1_status & 0x02);
 330         return 0;
 331 }
 332
 333 static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol,
 334                                    struct snd_ctl_elem_value *ucontrol)
 335 {
 336         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 337         u8 old_status, new_status;
 338         int err, changed;
 339
 340         old_status = mixer->xonar_u1_status;
 341         if (ucontrol->value.integer.value[0])
 342                 new_status = old_status | 0x02;
 343         else
 344                 new_status = old_status & ~0x02;
 345         changed = new_status != old_status;
 346         down_read(&mixer->chip->shutdown_rwsem);
 347         if (mixer->chip->shutdown)
 348                 err = -ENODEV;
 349         else
 350                 err = snd_usb_ctl_msg(mixer->chip->dev,
 351                               usb_sndctrlpipe(mixer->chip->dev, 0), 0x08,
 352                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 353                               50, 0, &new_status, 1);
 354         up_read(&mixer->chip->shutdown_rwsem);
 355         if (err < 0)
 356                 return err;
 357         mixer->xonar_u1_status = new_status;
 358         return changed;
 359 }
 360
 361 static struct snd_kcontrol_new snd_xonar_u1_output_switch = {
 362         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 363         .name = "Digital Playback Switch",
 364         .info = snd_ctl_boolean_mono_info,
 365         .get = snd_xonar_u1_switch_get,
 366         .put = snd_xonar_u1_switch_put,
 367 };
 368
 369 static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer)
 370 {
 371         int err;
 372
 373         err = snd_ctl_add(mixer->chip->card,
 374                           snd_ctl_new1(&snd_xonar_u1_output_switch, mixer));
 375         if (err < 0)
 376                 return err;
 377         mixer->xonar_u1_status = 0x05;
 378         return 0;
 379 }
 380
 381 /* Native Instruments device quirks */
 382
 383 #define _MAKE_NI_CONTROL(bRequest,wIndex) ((bRequest) << 16 | (wIndex))
 384
 385 static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol,
 386                                              struct snd_ctl_elem_value *ucontrol)
 387 {
 388         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 389         struct usb_device *dev = mixer->chip->dev;
 390         u8 bRequest = (kcontrol->private_value >> 16) & 0xff;
 391         u16 wIndex = kcontrol->private_value & 0xffff;
 392         u8 tmp;
 393         int ret;
 394
 395         down_read(&mixer->chip->shutdown_rwsem);
 396         if (mixer->chip->shutdown)
 397                 ret = -ENODEV;
 398         else
 399                 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), bRequest,
 400                                   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 401                                   0, wIndex,
 402                                   &tmp, sizeof(tmp), 1000);
 403         up_read(&mixer->chip->shutdown_rwsem);
 404
 405         if (ret < 0) {
 406                 snd_printk(KERN_ERR
 407                            "unable to issue vendor read request (ret = %d)", ret);
 408                 return ret;
 409         }
 410
 411         ucontrol->value.integer.value[0] = tmp;
 412
 413         return 0;
 414 }
 415
 416 static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
 417                                              struct snd_ctl_elem_value *ucontrol)
 418 {
 419         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 420         struct usb_device *dev = mixer->chip->dev;
 421         u8 bRequest = (kcontrol->private_value >> 16) & 0xff;
 422         u16 wIndex = kcontrol->private_value & 0xffff;
 423         u16 wValue = ucontrol->value.integer.value[0];
 424         int ret;
 425
 426         down_read(&mixer->chip->shutdown_rwsem);
 427         if (mixer->chip->shutdown)
 428                 ret = -ENODEV;
 429         else
 430                 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), bRequest,
 431                                   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 432                                   wValue, wIndex,
 433                                   NULL, 0, 1000);
 434         up_read(&mixer->chip->shutdown_rwsem);
 435
 436         if (ret < 0) {
 437                 snd_printk(KERN_ERR
 438                            "unable to issue vendor write request (ret = %d)", ret);
 439                 return ret;
 440         }
 441
 442         return 0;
 443 }
 444
 445 static struct snd_kcontrol_new snd_nativeinstruments_ta6_mixers[] = {
 446         {
 447                 .name = "Direct Thru Channel A",
 448                 .private_value = _MAKE_NI_CONTROL(0x01, 0x03),
 449         },
 450         {
 451                 .name = "Direct Thru Channel B",
 452                 .private_value = _MAKE_NI_CONTROL(0x01, 0x05),
 453         },
 454         {
 455                 .name = "Phono Input Channel A",
 456                 .private_value = _MAKE_NI_CONTROL(0x02, 0x03),
 457         },
 458         {
 459                 .name = "Phono Input Channel B",
 460                 .private_value = _MAKE_NI_CONTROL(0x02, 0x05),
 461         },
 462 };
 463
 464 static struct snd_kcontrol_new snd_nativeinstruments_ta10_mixers[] = {
 465         {
 466                 .name = "Direct Thru Channel A",
 467                 .private_value = _MAKE_NI_CONTROL(0x01, 0x03),
 468         },
 469         {
 470                 .name = "Direct Thru Channel B",
 471                 .private_value = _MAKE_NI_CONTROL(0x01, 0x05),
 472         },
 473         {
 474                 .name = "Direct Thru Channel C",
 475                 .private_value = _MAKE_NI_CONTROL(0x01, 0x07),
 476         },
 477         {
 478                 .name = "Direct Thru Channel D",
 479                 .private_value = _MAKE_NI_CONTROL(0x01, 0x09),
 480         },
 481         {
 482                 .name = "Phono Input Channel A",
 483                 .private_value = _MAKE_NI_CONTROL(0x02, 0x03),
 484         },
 485         {
 486                 .name = "Phono Input Channel B",
 487                 .private_value = _MAKE_NI_CONTROL(0x02, 0x05),
 488         },
 489         {
 490                 .name = "Phono Input Channel C",
 491                 .private_value = _MAKE_NI_CONTROL(0x02, 0x07),
 492         },
 493         {
 494                 .name = "Phono Input Channel D",
 495                 .private_value = _MAKE_NI_CONTROL(0x02, 0x09),
 496         },
 497 };
 498
 499 static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer,
 500                                               const struct snd_kcontrol_new *kc,
 501                                               unsigned int count)
 502 {
 503         int i, err = 0;
 504         struct snd_kcontrol_new template = {
 505                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 506                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 507                 .get = snd_nativeinstruments_control_get,
 508                 .put = snd_nativeinstruments_control_put,
 509                 .info = snd_ctl_boolean_mono_info,
 510         };
 511
 512         for (i = 0; i < count; i++) {
 513                 struct snd_kcontrol *c;
 514
 515                 template.name = kc[i].name;
 516                 template.private_value = kc[i].private_value;
 517
 518                 c = snd_ctl_new1(&template, mixer);
 519                 err = snd_ctl_add(mixer->chip->card, c);
 520
 521                 if (err < 0)
 522                         break;
 523         }
 524
 525         return err;
 526 }
 527
 528 /* M-Audio FastTrack Ultra quirks */
 529
 530 /* private_free callback */
 531 static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
 532 {
 533         kfree(kctl->private_data);
 534         kctl->private_data = NULL;
 535 }
 536
 537 static int snd_maudio_ftu_create_ctl(struct usb_mixer_interface *mixer,
 538                                      int in, int out, const char *name)
 539 {
 540         struct usb_mixer_elem_info *cval;
 541         struct snd_kcontrol *kctl;
 542
 543         cval = kzalloc(sizeof(*cval), GFP_KERNEL);
 544         if (!cval)
 545                 return -ENOMEM;
 546
 547         cval->id = 5;
 548         cval->mixer = mixer;
 549         cval->val_type = USB_MIXER_S16;
 550         cval->channels = 1;
 551         cval->control = out + 1;
 552         cval->cmask = 1 << in;
 553
 554         kctl = snd_ctl_new1(snd_usb_feature_unit_ctl, cval);
 555         if (!kctl) {
 556                 kfree(cval);
 557                 return -ENOMEM;
 558         }
 559
 560         snprintf(kctl->id.name, sizeof(kctl->id.name), name);
 561         kctl->private_free = usb_mixer_elem_free;
 562         return snd_usb_mixer_add_control(mixer, kctl);
 563 }
 564
 565 static int snd_maudio_ftu_create_mixer(struct usb_mixer_interface *mixer)
 566 {
 567         char name[64];
 568         int in, out, err;
 569
 570         for (out = 0; out < 8; out++) {
 571                 for (in = 0; in < 8; in++) {
 572                         snprintf(name, sizeof(name),
 573                                  "AIn%d - Out%d Capture Volume", in  + 1, out + 1);
 574                         err = snd_maudio_ftu_create_ctl(mixer, in, out, name);
 575                         if (err < 0)
 576                                 return err;
 577                 }
 578
 579                 for (in = 8; in < 16; in++) {
 580                         snprintf(name, sizeof(name),
 581                                  "DIn%d - Out%d Playback Volume", in - 7, out + 1);
 582                         err = snd_maudio_ftu_create_ctl(mixer, in, out, name);
 583                         if (err < 0)
 584                                 return err;
 585                 }
 586         }
 587
 588         return 0;
 589 }
 590
 591 void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
 592                                unsigned char samplerate_id)
 593 {
 594         struct usb_mixer_interface *mixer;
 595         struct usb_mixer_elem_info *cval;
 596         int unitid = 12; /* SamleRate ExtensionUnit ID */
 597
 598         list_for_each_entry(mixer, &chip->mixer_list, list) {
 599                 cval = mixer->id_elems[unitid];
 600                 if (cval) {
 601                         snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR,
 602                                                     cval->control << 8,
 603                                                     samplerate_id);
 604                         snd_usb_mixer_notify_id(mixer, unitid);
 605                 }
 606                 break;
 607         }
 608 }
 609
 610 int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 611 {
 612         int err = 0;
 613         struct snd_info_entry *entry;
 614
 615         if ((err = snd_usb_soundblaster_remote_init(mixer)) < 0)
 616                 return err;
 617
 618         switch (mixer->chip->usb_id) {
 619         case USB_ID(0x041e, 0x3020):
 620         case USB_ID(0x041e, 0x3040):
 621         case USB_ID(0x041e, 0x3042):
 622         case USB_ID(0x041e, 0x30df):
 623         case USB_ID(0x041e, 0x3048):
 624                 err = snd_audigy2nx_controls_create(mixer);
 625                 if (err < 0)
 626                         break;
 627                 if (!snd_card_proc_new(mixer->chip->card, "audigy2nx", &entry))
 628                         snd_info_set_text_ops(entry, mixer,
 629                                               snd_audigy2nx_proc_read);
 630                 break;
 631
 632         case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
 633         case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
 634                 err = snd_maudio_ftu_create_mixer(mixer);
 635                 break;
 636
 637         case USB_ID(0x0b05, 0x1739):
 638         case USB_ID(0x0b05, 0x1743):
 639                 err = snd_xonar_u1_controls_create(mixer);
 640                 break;
 641
 642         case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */
 643                 err = snd_nativeinstruments_create_mixer(mixer,
 644                                 snd_nativeinstruments_ta6_mixers,
 645                                 ARRAY_SIZE(snd_nativeinstruments_ta6_mixers));
 646                 break;
 647
 648         case USB_ID(0x17cc, 0x1021): /* Traktor Audio 10 */
 649                 err = snd_nativeinstruments_create_mixer(mixer,
 650                                 snd_nativeinstruments_ta10_mixers,
 651                                 ARRAY_SIZE(snd_nativeinstruments_ta10_mixers));
 652                 break;
 653         }
 654
 655         return err;
 656 }
 657
 658 void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
 659                                     int unitid)
 660 {
 661         if (!mixer->rc_cfg)
 662                 return;
 663         /* unit ids specific to Extigy/Audigy 2 NX: */
 664         switch (unitid) {
 665         case 0: /* remote control */
 666                 mixer->rc_urb->dev = mixer->chip->dev;
 667                 usb_submit_urb(mixer->rc_urb, GFP_ATOMIC);
 668                 break;
 669         case 4: /* digital in jack */
 670         case 7: /* line in jacks */
 671         case 19: /* speaker out jacks */
 672         case 20: /* headphones out jack */
 673                 break;
 674         /* live24ext: 4 = line-in jack */
 675         case 3: /* hp-out jack (may actuate Mute) */
 676                 if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 677                     mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
 678                         snd_usb_mixer_notify_id(mixer, mixer->rc_cfg->mute_mixer_id);
 679                 break;
 680         default:
 681                 snd_printd(KERN_DEBUG "memory change in unknown unit %d\n", unitid);
 682                 break;
 683         }
 684 }
 685
 686 static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer,
 687                                          struct usb_mixer_elem_info *cval,
 688                                          struct snd_kcontrol *kctl)
 689 {
 690         /* Approximation using 10 ranges based on output measurement on hw v1.2.
 691          * This seems close to the cubic mapping e.g. alsamixer uses. */
 692         static const DECLARE_TLV_DB_RANGE(scale,
 693                  0,  1, TLV_DB_MINMAX_ITEM(-5300, -4970),
 694                  2,  5, TLV_DB_MINMAX_ITEM(-4710, -4160),
 695                  6,  7, TLV_DB_MINMAX_ITEM(-3884, -3710),
 696                  8, 14, TLV_DB_MINMAX_ITEM(-3443, -2560),
 697                 15, 16, TLV_DB_MINMAX_ITEM(-2475, -2324),
 698                 17, 19, TLV_DB_MINMAX_ITEM(-2228, -2031),
 699                 20, 26, TLV_DB_MINMAX_ITEM(-1910, -1393),
 700                 27, 31, TLV_DB_MINMAX_ITEM(-1322, -1032),
 701                 32, 40, TLV_DB_MINMAX_ITEM(-968, -490),
 702                 41, 50, TLV_DB_MINMAX_ITEM(-441, 0),
 703         );
 704
 705         if (cval->min == 0 && cval->max == 50) {
 706                 dev_info(&mixer->chip->dev->dev, "applying DragonFly dB scale quirk (0-50 variant)\n");
 707                 kctl->tlv.p = scale;
 708                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 709                 kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
 710
 711         } else if (cval->min == 0 && cval->max <= 1000) {
 712                 /* Some other clearly broken DragonFly variant.
 713                  * At least a 0..53 variant (hw v1.0) exists.
 714                  */
 715                 dev_info(&mixer->chip->dev->dev, "ignoring too narrow dB range on a DragonFly device");
 716                 kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
 717         }
 718 }
 719
 720 void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
 721                                   struct usb_mixer_elem_info *cval, int unitid,
 722                                   struct snd_kcontrol *kctl)
 723 {
 724         switch (mixer->chip->usb_id) {
 725         case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */
 726                 if (unitid == 7 && cval->control == UAC_FU_VOLUME)
 727                         snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
 728                 break;
 729         /* lowest playback value is muted on C-Media devices */
 730         case USB_ID(0x0d8c, 0x000c):
 731         case USB_ID(0x0d8c, 0x0014):
 732                 if (strstr(kctl->id.name, "Playback"))
 733                         cval->min_mute = 1;
 734                 break;
 735         }
 736 }
 737