sound/usb/quirks.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  */
   4
   5 #include <linux/init.h>
   6 #include <linux/slab.h>
   7 #include <linux/usb.h>
   8 #include <linux/usb/audio.h>
   9 #include <linux/usb/midi.h>
  10 #include <linux/bits.h>
  11
  12 #include <sound/control.h>
  13 #include <sound/core.h>
  14 #include <sound/info.h>
  15 #include <sound/pcm.h>
  16
  17 #include "usbaudio.h"
  18 #include "card.h"
  19 #include "mixer.h"
  20 #include "mixer_quirks.h"
  21 #include "midi.h"
  22 #include "quirks.h"
  23 #include "helper.h"
  24 #include "endpoint.h"
  25 #include "pcm.h"
  26 #include "clock.h"
  27 #include "stream.h"
  28
  29 /*
  30  * handle the quirks for the contained interfaces
  31  */
  32 static int create_composite_quirk(struct snd_usb_audio *chip,
  33                                   struct usb_interface *iface,
  34                                   struct usb_driver *driver,
  35                                   const struct snd_usb_audio_quirk *quirk_comp)
  36 {
  37         int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
  38         const struct snd_usb_audio_quirk *quirk;
  39         int err;
  40
  41         for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) {
  42                 iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
  43                 if (!iface)
  44                         continue;
  45                 if (quirk->ifnum != probed_ifnum &&
  46                     usb_interface_claimed(iface))
  47                         continue;
  48                 err = snd_usb_create_quirk(chip, iface, driver, quirk);
  49                 if (err < 0)
  50                         return err;
  51         }
  52
  53         for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) {
  54                 iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
  55                 if (!iface)
  56                         continue;
  57                 if (quirk->ifnum != probed_ifnum &&
  58                     !usb_interface_claimed(iface)) {
  59                         err = usb_driver_claim_interface(driver, iface,
  60                                                          USB_AUDIO_IFACE_UNUSED);
  61                         if (err < 0)
  62                                 return err;
  63                 }
  64         }
  65
  66         return 0;
  67 }
  68
  69 static int ignore_interface_quirk(struct snd_usb_audio *chip,
  70                                   struct usb_interface *iface,
  71                                   struct usb_driver *driver,
  72                                   const struct snd_usb_audio_quirk *quirk)
  73 {
  74         return 0;
  75 }
  76
  77
  78 /*
  79  * Allow alignment on audio sub-slot (channel samples) rather than
  80  * on audio slots (audio frames)
  81  */
  82 static int create_align_transfer_quirk(struct snd_usb_audio *chip,
  83                                        struct usb_interface *iface,
  84                                        struct usb_driver *driver,
  85                                        const struct snd_usb_audio_quirk *quirk)
  86 {
  87         chip->txfr_quirk = 1;
  88         return 1;       /* Continue with creating streams and mixer */
  89 }
  90
  91 static int create_any_midi_quirk(struct snd_usb_audio *chip,
  92                                  struct usb_interface *intf,
  93                                  struct usb_driver *driver,
  94                                  const struct snd_usb_audio_quirk *quirk)
  95 {
  96         return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
  97 }
  98
  99 /*
 100  * create a stream for an interface with proper descriptors
 101  */
 102 static int create_standard_audio_quirk(struct snd_usb_audio *chip,
 103                                        struct usb_interface *iface,
 104                                        struct usb_driver *driver,
 105                                        const struct snd_usb_audio_quirk *quirk)
 106 {
 107         struct usb_host_interface *alts;
 108         struct usb_interface_descriptor *altsd;
 109         int err;
 110
 111         if (chip->usb_id == USB_ID(0x1686, 0x00dd)) /* Zoom R16/24 */
 112                 chip->tx_length_quirk = 1;
 113
 114         alts = &iface->altsetting[0];
 115         altsd = get_iface_desc(alts);
 116         err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
 117         if (err < 0) {
 118                 usb_audio_err(chip, "cannot setup if %d: error %d\n",
 119                            altsd->bInterfaceNumber, err);
 120                 return err;
 121         }
 122         /* reset the current interface */
 123         usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
 124         return 0;
 125 }
 126
 127 /*
 128  * create a stream for an endpoint/altsetting without proper descriptors
 129  */
 130 static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
 131                                      struct usb_interface *iface,
 132                                      struct usb_driver *driver,
 133                                      const struct snd_usb_audio_quirk *quirk)
 134 {
 135         struct audioformat *fp;
 136         struct usb_host_interface *alts;
 137         struct usb_interface_descriptor *altsd;
 138         int stream, err;
 139         unsigned *rate_table = NULL;
 140
 141         fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
 142         if (!fp)
 143                 return -ENOMEM;
 144
 145         INIT_LIST_HEAD(&fp->list);
 146         if (fp->nr_rates > MAX_NR_RATES) {
 147                 kfree(fp);
 148                 return -EINVAL;
 149         }
 150         if (fp->nr_rates > 0) {
 151                 rate_table = kmemdup(fp->rate_table,
 152                                      sizeof(int) * fp->nr_rates, GFP_KERNEL);
 153                 if (!rate_table) {
 154                         kfree(fp);
 155                         return -ENOMEM;
 156                 }
 157                 fp->rate_table = rate_table;
 158         }
 159
 160         stream = (fp->endpoint & USB_DIR_IN)
 161                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 162         err = snd_usb_add_audio_stream(chip, stream, fp);
 163         if (err < 0)
 164                 goto error;
 165         if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
 166             fp->altset_idx >= iface->num_altsetting) {
 167                 err = -EINVAL;
 168                 goto error;
 169         }
 170         alts = &iface->altsetting[fp->altset_idx];
 171         altsd = get_iface_desc(alts);
 172         if (altsd->bNumEndpoints < 1) {
 173                 err = -EINVAL;
 174                 goto error;
 175         }
 176
 177         fp->protocol = altsd->bInterfaceProtocol;
 178
 179         if (fp->datainterval == 0)
 180                 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
 181         if (fp->maxpacksize == 0)
 182                 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 183         usb_set_interface(chip->dev, fp->iface, 0);
 184         snd_usb_init_pitch(chip, fp->iface, alts, fp);
 185         snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
 186         return 0;
 187
 188  error:
 189         list_del(&fp->list); /* unlink for avoiding double-free */
 190         kfree(fp);
 191         kfree(rate_table);
 192         return err;
 193 }
 194
 195 static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
 196                                  struct usb_interface *iface,
 197                                  struct usb_driver *driver)
 198 {
 199         struct usb_host_interface *alts;
 200         struct usb_interface_descriptor *altsd;
 201         struct usb_endpoint_descriptor *epd;
 202         struct uac1_as_header_descriptor *ashd;
 203         struct uac_format_type_i_discrete_descriptor *fmtd;
 204
 205         /*
 206          * Most Roland/Yamaha audio streaming interfaces have more or less
 207          * standard descriptors, but older devices might lack descriptors, and
 208          * future ones might change, so ensure that we fail silently if the
 209          * interface doesn't look exactly right.
 210          */
 211
 212         /* must have a non-zero altsetting for streaming */
 213         if (iface->num_altsetting < 2)
 214                 return -ENODEV;
 215         alts = &iface->altsetting[1];
 216         altsd = get_iface_desc(alts);
 217
 218         /* must have an isochronous endpoint for streaming */
 219         if (altsd->bNumEndpoints < 1)
 220                 return -ENODEV;
 221         epd = get_endpoint(alts, 0);
 222         if (!usb_endpoint_xfer_isoc(epd))
 223                 return -ENODEV;
 224
 225         /* must have format descriptors */
 226         ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
 227                                        UAC_AS_GENERAL);
 228         fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
 229                                        UAC_FORMAT_TYPE);
 230         if (!ashd || ashd->bLength < 7 ||
 231             !fmtd || fmtd->bLength < 8)
 232                 return -ENODEV;
 233
 234         return create_standard_audio_quirk(chip, iface, driver, NULL);
 235 }
 236
 237 static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
 238                                     struct usb_interface *iface,
 239                                     struct usb_driver *driver,
 240                                     struct usb_host_interface *alts)
 241 {
 242         static const struct snd_usb_audio_quirk yamaha_midi_quirk = {
 243                 .type = QUIRK_MIDI_YAMAHA
 244         };
 245         struct usb_midi_in_jack_descriptor *injd;
 246         struct usb_midi_out_jack_descriptor *outjd;
 247
 248         /* must have some valid jack descriptors */
 249         injd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
 250                                        NULL, USB_MS_MIDI_IN_JACK);
 251         outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
 252                                         NULL, USB_MS_MIDI_OUT_JACK);
 253         if (!injd && !outjd)
 254                 return -ENODEV;
 255         if ((injd && !snd_usb_validate_midi_desc(injd)) ||
 256             (outjd && !snd_usb_validate_midi_desc(outjd)))
 257                 return -ENODEV;
 258         if (injd && (injd->bLength < 5 ||
 259                      (injd->bJackType != USB_MS_EMBEDDED &&
 260                       injd->bJackType != USB_MS_EXTERNAL)))
 261                 return -ENODEV;
 262         if (outjd && (outjd->bLength < 6 ||
 263                       (outjd->bJackType != USB_MS_EMBEDDED &&
 264                        outjd->bJackType != USB_MS_EXTERNAL)))
 265                 return -ENODEV;
 266         return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk);
 267 }
 268
 269 static int create_roland_midi_quirk(struct snd_usb_audio *chip,
 270                                     struct usb_interface *iface,
 271                                     struct usb_driver *driver,
 272                                     struct usb_host_interface *alts)
 273 {
 274         static const struct snd_usb_audio_quirk roland_midi_quirk = {
 275                 .type = QUIRK_MIDI_ROLAND
 276         };
 277         u8 *roland_desc = NULL;
 278
 279         /* might have a vendor-specific descriptor <06 24 F1 02 ...> */
 280         for (;;) {
 281                 roland_desc = snd_usb_find_csint_desc(alts->extra,
 282                                                       alts->extralen,
 283                                                       roland_desc, 0xf1);
 284                 if (!roland_desc)
 285                         return -ENODEV;
 286                 if (roland_desc[0] < 6 || roland_desc[3] != 2)
 287                         continue;
 288                 return create_any_midi_quirk(chip, iface, driver,
 289                                              &roland_midi_quirk);
 290         }
 291 }
 292
 293 static int create_std_midi_quirk(struct snd_usb_audio *chip,
 294                                  struct usb_interface *iface,
 295                                  struct usb_driver *driver,
 296                                  struct usb_host_interface *alts)
 297 {
 298         struct usb_ms_header_descriptor *mshd;
 299         struct usb_ms_endpoint_descriptor *msepd;
 300
 301         /* must have the MIDIStreaming interface header descriptor*/
 302         mshd = (struct usb_ms_header_descriptor *)alts->extra;
 303         if (alts->extralen < 7 ||
 304             mshd->bLength < 7 ||
 305             mshd->bDescriptorType != USB_DT_CS_INTERFACE ||
 306             mshd->bDescriptorSubtype != USB_MS_HEADER)
 307                 return -ENODEV;
 308         /* must have the MIDIStreaming endpoint descriptor*/
 309         msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra;
 310         if (alts->endpoint[0].extralen < 4 ||
 311             msepd->bLength < 4 ||
 312             msepd->bDescriptorType != USB_DT_CS_ENDPOINT ||
 313             msepd->bDescriptorSubtype != UAC_MS_GENERAL ||
 314             msepd->bNumEmbMIDIJack < 1 ||
 315             msepd->bNumEmbMIDIJack > 16)
 316                 return -ENODEV;
 317
 318         return create_any_midi_quirk(chip, iface, driver, NULL);
 319 }
 320
 321 static int create_auto_midi_quirk(struct snd_usb_audio *chip,
 322                                   struct usb_interface *iface,
 323                                   struct usb_driver *driver)
 324 {
 325         struct usb_host_interface *alts;
 326         struct usb_interface_descriptor *altsd;
 327         struct usb_endpoint_descriptor *epd;
 328         int err;
 329
 330         alts = &iface->altsetting[0];
 331         altsd = get_iface_desc(alts);
 332
 333         /* must have at least one bulk/interrupt endpoint for streaming */
 334         if (altsd->bNumEndpoints < 1)
 335                 return -ENODEV;
 336         epd = get_endpoint(alts, 0);
 337         if (!usb_endpoint_xfer_bulk(epd) &&
 338             !usb_endpoint_xfer_int(epd))
 339                 return -ENODEV;
 340
 341         switch (USB_ID_VENDOR(chip->usb_id)) {
 342         case 0x0499: /* Yamaha */
 343                 err = create_yamaha_midi_quirk(chip, iface, driver, alts);
 344                 if (err != -ENODEV)
 345                         return err;
 346                 break;
 347         case 0x0582: /* Roland */
 348                 err = create_roland_midi_quirk(chip, iface, driver, alts);
 349                 if (err != -ENODEV)
 350                         return err;
 351                 break;
 352         }
 353
 354         return create_std_midi_quirk(chip, iface, driver, alts);
 355 }
 356
 357 static int create_autodetect_quirk(struct snd_usb_audio *chip,
 358                                    struct usb_interface *iface,
 359                                    struct usb_driver *driver)
 360 {
 361         int err;
 362
 363         err = create_auto_pcm_quirk(chip, iface, driver);
 364         if (err == -ENODEV)
 365                 err = create_auto_midi_quirk(chip, iface, driver);
 366         return err;
 367 }
 368
 369 static int create_autodetect_quirks(struct snd_usb_audio *chip,
 370                                     struct usb_interface *iface,
 371                                     struct usb_driver *driver,
 372                                     const struct snd_usb_audio_quirk *quirk)
 373 {
 374         int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
 375         int ifcount, ifnum, err;
 376
 377         err = create_autodetect_quirk(chip, iface, driver);
 378         if (err < 0)
 379                 return err;
 380
 381         /*
 382          * ALSA PCM playback/capture devices cannot be registered in two steps,
 383          * so we have to claim the other corresponding interface here.
 384          */
 385         ifcount = chip->dev->actconfig->desc.bNumInterfaces;
 386         for (ifnum = 0; ifnum < ifcount; ifnum++) {
 387                 if (ifnum == probed_ifnum || quirk->ifnum >= 0)
 388                         continue;
 389                 iface = usb_ifnum_to_if(chip->dev, ifnum);
 390                 if (!iface ||
 391                     usb_interface_claimed(iface) ||
 392                     get_iface_desc(iface->altsetting)->bInterfaceClass !=
 393                                                         USB_CLASS_VENDOR_SPEC)
 394                         continue;
 395
 396                 err = create_autodetect_quirk(chip, iface, driver);
 397                 if (err >= 0) {
 398                         err = usb_driver_claim_interface(driver, iface,
 399                                                          USB_AUDIO_IFACE_UNUSED);
 400                         if (err < 0)
 401                                 return err;
 402                 }
 403         }
 404
 405         return 0;
 406 }
 407
 408 /*
 409  * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
 410  * The only way to detect the sample rate is by looking at wMaxPacketSize.
 411  */
 412 static int create_uaxx_quirk(struct snd_usb_audio *chip,
 413                              struct usb_interface *iface,
 414                              struct usb_driver *driver,
 415                              const struct snd_usb_audio_quirk *quirk)
 416 {
 417         static const struct audioformat ua_format = {
 418                 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
 419                 .channels = 2,
 420                 .fmt_type = UAC_FORMAT_TYPE_I,
 421                 .altsetting = 1,
 422                 .altset_idx = 1,
 423                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
 424         };
 425         struct usb_host_interface *alts;
 426         struct usb_interface_descriptor *altsd;
 427         struct audioformat *fp;
 428         int stream, err;
 429
 430         /* both PCM and MIDI interfaces have 2 or more altsettings */
 431         if (iface->num_altsetting < 2)
 432                 return -ENXIO;
 433         alts = &iface->altsetting[1];
 434         altsd = get_iface_desc(alts);
 435
 436         if (altsd->bNumEndpoints == 2) {
 437                 static const struct snd_usb_midi_endpoint_info ua700_ep = {
 438                         .out_cables = 0x0003,
 439                         .in_cables  = 0x0003
 440                 };
 441                 static const struct snd_usb_audio_quirk ua700_quirk = {
 442                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 443                         .data = &ua700_ep
 444                 };
 445                 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
 446                         .out_cables = 0x0001,
 447                         .in_cables  = 0x0001
 448                 };
 449                 static const struct snd_usb_audio_quirk uaxx_quirk = {
 450                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 451                         .data = &uaxx_ep
 452                 };
 453                 const struct snd_usb_audio_quirk *quirk =
 454                         chip->usb_id == USB_ID(0x0582, 0x002b)
 455                         ? &ua700_quirk : &uaxx_quirk;
 456                 return __snd_usbmidi_create(chip->card, iface,
 457                                           &chip->midi_list, quirk,
 458                                           chip->usb_id);
 459         }
 460
 461         if (altsd->bNumEndpoints != 1)
 462                 return -ENXIO;
 463
 464         fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
 465         if (!fp)
 466                 return -ENOMEM;
 467
 468         fp->iface = altsd->bInterfaceNumber;
 469         fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
 470         fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
 471         fp->datainterval = 0;
 472         fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 473         INIT_LIST_HEAD(&fp->list);
 474
 475         switch (fp->maxpacksize) {
 476         case 0x120:
 477                 fp->rate_max = fp->rate_min = 44100;
 478                 break;
 479         case 0x138:
 480         case 0x140:
 481                 fp->rate_max = fp->rate_min = 48000;
 482                 break;
 483         case 0x258:
 484         case 0x260:
 485                 fp->rate_max = fp->rate_min = 96000;
 486                 break;
 487         default:
 488                 usb_audio_err(chip, "unknown sample rate\n");
 489                 kfree(fp);
 490                 return -ENXIO;
 491         }
 492
 493         stream = (fp->endpoint & USB_DIR_IN)
 494                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 495         err = snd_usb_add_audio_stream(chip, stream, fp);
 496         if (err < 0) {
 497                 list_del(&fp->list); /* unlink for avoiding double-free */
 498                 kfree(fp);
 499                 return err;
 500         }
 501         usb_set_interface(chip->dev, fp->iface, 0);
 502         return 0;
 503 }
 504
 505 /*
 506  * Create a standard mixer for the specified interface.
 507  */
 508 static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
 509                                        struct usb_interface *iface,
 510                                        struct usb_driver *driver,
 511                                        const struct snd_usb_audio_quirk *quirk)
 512 {
 513         if (quirk->ifnum < 0)
 514                 return 0;
 515
 516         return snd_usb_create_mixer(chip, quirk->ifnum, 0);
 517 }
 518
 519
 520 static int setup_fmt_after_resume_quirk(struct snd_usb_audio *chip,
 521                                        struct usb_interface *iface,
 522                                        struct usb_driver *driver,
 523                                        const struct snd_usb_audio_quirk *quirk)
 524 {
 525         chip->setup_fmt_after_resume_quirk = 1;
 526         return 1;       /* Continue with creating streams and mixer */
 527 }
 528
 529 /*
 530  * audio-interface quirks
 531  *
 532  * returns zero if no standard audio/MIDI parsing is needed.
 533  * returns a positive value if standard audio/midi interfaces are parsed
 534  * after this.
 535  * returns a negative value at error.
 536  */
 537 int snd_usb_create_quirk(struct snd_usb_audio *chip,
 538                          struct usb_interface *iface,
 539                          struct usb_driver *driver,
 540                          const struct snd_usb_audio_quirk *quirk)
 541 {
 542         typedef int (*quirk_func_t)(struct snd_usb_audio *,
 543                                     struct usb_interface *,
 544                                     struct usb_driver *,
 545                                     const struct snd_usb_audio_quirk *);
 546         static const quirk_func_t quirk_funcs[] = {
 547                 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
 548                 [QUIRK_COMPOSITE] = create_composite_quirk,
 549                 [QUIRK_AUTODETECT] = create_autodetect_quirks,
 550                 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
 551                 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
 552                 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
 553                 [QUIRK_MIDI_ROLAND] = create_any_midi_quirk,
 554                 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
 555                 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
 556                 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
 557                 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
 558                 [QUIRK_MIDI_CME] = create_any_midi_quirk,
 559                 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
 560                 [QUIRK_MIDI_FTDI] = create_any_midi_quirk,
 561                 [QUIRK_MIDI_CH345] = create_any_midi_quirk,
 562                 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
 563                 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
 564                 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
 565                 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
 566                 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
 567                 [QUIRK_SETUP_FMT_AFTER_RESUME] = setup_fmt_after_resume_quirk,
 568         };
 569
 570         if (quirk->type < QUIRK_TYPE_COUNT) {
 571                 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
 572         } else {
 573                 usb_audio_err(chip, "invalid quirk type %d\n", quirk->type);
 574                 return -ENXIO;
 575         }
 576 }
 577
 578 /*
 579  * boot quirks
 580  */
 581
 582 #define EXTIGY_FIRMWARE_SIZE_OLD 794
 583 #define EXTIGY_FIRMWARE_SIZE_NEW 483
 584
 585 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
 586 {
 587         struct usb_host_config *config = dev->actconfig;
 588         int err;
 589
 590         if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
 591             le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
 592                 dev_dbg(&dev->dev, "sending Extigy boot sequence...\n");
 593                 /* Send message to force it to reconnect with full interface. */
 594                 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
 595                                       0x10, 0x43, 0x0001, 0x000a, NULL, 0);
 596                 if (err < 0)
 597                         dev_dbg(&dev->dev, "error sending boot message: %d\n", err);
 598                 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 599                                 &dev->descriptor, sizeof(dev->descriptor));
 600                 config = dev->actconfig;
 601                 if (err < 0)
 602                         dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
 603                 err = usb_reset_configuration(dev);
 604                 if (err < 0)
 605                         dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
 606                 dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n",
 607                             le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 608                 return -ENODEV; /* quit this anyway */
 609         }
 610         return 0;
 611 }
 612
 613 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
 614 {
 615         u8 buf = 1;
 616
 617         snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
 618                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 619                         0, 0, &buf, 1);
 620         if (buf == 0) {
 621                 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
 622                                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 623                                 1, 2000, NULL, 0);
 624                 return -ENODEV;
 625         }
 626         return 0;
 627 }
 628
 629 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
 630 {
 631         int err;
 632
 633         if (dev->actconfig->desc.bConfigurationValue == 1) {
 634                 dev_info(&dev->dev,
 635                            "Fast Track Pro switching to config #2\n");
 636                 /* This function has to be available by the usb core module.
 637                  * if it is not avialable the boot quirk has to be left out
 638                  * and the configuration has to be set by udev or hotplug
 639                  * rules
 640                  */
 641                 err = usb_driver_set_configuration(dev, 2);
 642                 if (err < 0)
 643                         dev_dbg(&dev->dev,
 644                                 "error usb_driver_set_configuration: %d\n",
 645                                 err);
 646                 /* Always return an error, so that we stop creating a device
 647                    that will just be destroyed and recreated with a new
 648                    configuration */
 649                 return -ENODEV;
 650         } else
 651                 dev_info(&dev->dev, "Fast Track Pro config OK\n");
 652
 653         return 0;
 654 }
 655
 656 /*
 657  * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
 658  * documented in the device's data sheet.
 659  */
 660 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
 661 {
 662         u8 buf[4];
 663         buf[0] = 0x20;
 664         buf[1] = value & 0xff;
 665         buf[2] = (value >> 8) & 0xff;
 666         buf[3] = reg;
 667         return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
 668                                USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
 669                                0, 0, &buf, 4);
 670 }
 671
 672 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
 673 {
 674         /*
 675          * Enable line-out driver mode, set headphone source to front
 676          * channels, enable stereo mic.
 677          */
 678         return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
 679 }
 680
 681 /*
 682  * CM6206 registers from the CM6206 datasheet rev 2.1
 683  */
 684 #define CM6206_REG0_DMA_MASTER BIT(15)
 685 #define CM6206_REG0_SPDIFO_RATE_48K (2 << 12)
 686 #define CM6206_REG0_SPDIFO_RATE_96K (7 << 12)
 687 /* Bit 4 thru 11 is the S/PDIF category code */
 688 #define CM6206_REG0_SPDIFO_CAT_CODE_GENERAL (0 << 4)
 689 #define CM6206_REG0_SPDIFO_EMPHASIS_CD BIT(3)
 690 #define CM6206_REG0_SPDIFO_COPYRIGHT_NA BIT(2)
 691 #define CM6206_REG0_SPDIFO_NON_AUDIO BIT(1)
 692 #define CM6206_REG0_SPDIFO_PRO_FORMAT BIT(0)
 693
 694 #define CM6206_REG1_TEST_SEL_CLK BIT(14)
 695 #define CM6206_REG1_PLLBIN_EN BIT(13)
 696 #define CM6206_REG1_SOFT_MUTE_EN BIT(12)
 697 #define CM6206_REG1_GPIO4_OUT BIT(11)
 698 #define CM6206_REG1_GPIO4_OE BIT(10)
 699 #define CM6206_REG1_GPIO3_OUT BIT(9)
 700 #define CM6206_REG1_GPIO3_OE BIT(8)
 701 #define CM6206_REG1_GPIO2_OUT BIT(7)
 702 #define CM6206_REG1_GPIO2_OE BIT(6)
 703 #define CM6206_REG1_GPIO1_OUT BIT(5)
 704 #define CM6206_REG1_GPIO1_OE BIT(4)
 705 #define CM6206_REG1_SPDIFO_INVALID BIT(3)
 706 #define CM6206_REG1_SPDIF_LOOP_EN BIT(2)
 707 #define CM6206_REG1_SPDIFO_DIS BIT(1)
 708 #define CM6206_REG1_SPDIFI_MIX BIT(0)
 709
 710 #define CM6206_REG2_DRIVER_ON BIT(15)
 711 #define CM6206_REG2_HEADP_SEL_SIDE_CHANNELS (0 << 13)
 712 #define CM6206_REG2_HEADP_SEL_SURROUND_CHANNELS (1 << 13)
 713 #define CM6206_REG2_HEADP_SEL_CENTER_SUBW (2 << 13)
 714 #define CM6206_REG2_HEADP_SEL_FRONT_CHANNELS (3 << 13)
 715 #define CM6206_REG2_MUTE_HEADPHONE_RIGHT BIT(12)
 716 #define CM6206_REG2_MUTE_HEADPHONE_LEFT BIT(11)
 717 #define CM6206_REG2_MUTE_REAR_SURROUND_RIGHT BIT(10)
 718 #define CM6206_REG2_MUTE_REAR_SURROUND_LEFT BIT(9)
 719 #define CM6206_REG2_MUTE_SIDE_SURROUND_RIGHT BIT(8)
 720 #define CM6206_REG2_MUTE_SIDE_SURROUND_LEFT BIT(7)
 721 #define CM6206_REG2_MUTE_SUBWOOFER BIT(6)
 722 #define CM6206_REG2_MUTE_CENTER BIT(5)
 723 #define CM6206_REG2_MUTE_RIGHT_FRONT BIT(3)
 724 #define CM6206_REG2_MUTE_LEFT_FRONT BIT(3)
 725 #define CM6206_REG2_EN_BTL BIT(2)
 726 #define CM6206_REG2_MCUCLKSEL_1_5_MHZ (0)
 727 #define CM6206_REG2_MCUCLKSEL_3_MHZ (1)
 728 #define CM6206_REG2_MCUCLKSEL_6_MHZ (2)
 729 #define CM6206_REG2_MCUCLKSEL_12_MHZ (3)
 730
 731 /* Bit 11..13 sets the sensitivity to FLY tuner volume control VP/VD signal */
 732 #define CM6206_REG3_FLYSPEED_DEFAULT (2 << 11)
 733 #define CM6206_REG3_VRAP25EN BIT(10)
 734 #define CM6206_REG3_MSEL1 BIT(9)
 735 #define CM6206_REG3_SPDIFI_RATE_44_1K BIT(0 << 7)
 736 #define CM6206_REG3_SPDIFI_RATE_48K BIT(2 << 7)
 737 #define CM6206_REG3_SPDIFI_RATE_32K BIT(3 << 7)
 738 #define CM6206_REG3_PINSEL BIT(6)
 739 #define CM6206_REG3_FOE BIT(5)
 740 #define CM6206_REG3_ROE BIT(4)
 741 #define CM6206_REG3_CBOE BIT(3)
 742 #define CM6206_REG3_LOSE BIT(2)
 743 #define CM6206_REG3_HPOE BIT(1)
 744 #define CM6206_REG3_SPDIFI_CANREC BIT(0)
 745
 746 #define CM6206_REG5_DA_RSTN BIT(13)
 747 #define CM6206_REG5_AD_RSTN BIT(12)
 748 #define CM6206_REG5_SPDIFO_AD2SPDO BIT(12)
 749 #define CM6206_REG5_SPDIFO_SEL_FRONT (0 << 9)
 750 #define CM6206_REG5_SPDIFO_SEL_SIDE_SUR (1 << 9)
 751 #define CM6206_REG5_SPDIFO_SEL_CEN_LFE (2 << 9)
 752 #define CM6206_REG5_SPDIFO_SEL_REAR_SUR (3 << 9)
 753 #define CM6206_REG5_CODECM BIT(8)
 754 #define CM6206_REG5_EN_HPF BIT(7)
 755 #define CM6206_REG5_T_SEL_DSDA4 BIT(6)
 756 #define CM6206_REG5_T_SEL_DSDA3 BIT(5)
 757 #define CM6206_REG5_T_SEL_DSDA2 BIT(4)
 758 #define CM6206_REG5_T_SEL_DSDA1 BIT(3)
 759 #define CM6206_REG5_T_SEL_DSDAD_NORMAL 0
 760 #define CM6206_REG5_T_SEL_DSDAD_FRONT 4
 761 #define CM6206_REG5_T_SEL_DSDAD_S_SURROUND 5
 762 #define CM6206_REG5_T_SEL_DSDAD_CEN_LFE 6
 763 #define CM6206_REG5_T_SEL_DSDAD_R_SURROUND 7
 764
 765 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
 766 {
 767         int err  = 0, reg;
 768         int val[] = {
 769                 /*
 770                  * Values here are chosen based on sniffing USB traffic
 771                  * under Windows.
 772                  *
 773                  * REG0: DAC is master, sample rate 48kHz, no copyright
 774                  */
 775                 CM6206_REG0_SPDIFO_RATE_48K |
 776                 CM6206_REG0_SPDIFO_COPYRIGHT_NA,
 777                 /*
 778                  * REG1: PLL binary search enable, soft mute enable.
 779                  */
 780                 CM6206_REG1_PLLBIN_EN |
 781                 CM6206_REG1_SOFT_MUTE_EN,
 782                 /*
 783                  * REG2: enable output drivers,
 784                  * select front channels to the headphone output,
 785                  * then mute the headphone channels, run the MCU
 786                  * at 1.5 MHz.
 787                  */
 788                 CM6206_REG2_DRIVER_ON |
 789                 CM6206_REG2_HEADP_SEL_FRONT_CHANNELS |
 790                 CM6206_REG2_MUTE_HEADPHONE_RIGHT |
 791                 CM6206_REG2_MUTE_HEADPHONE_LEFT,
 792                 /*
 793                  * REG3: default flyspeed, set 2.5V mic bias
 794                  * enable all line out ports and enable SPDIF
 795                  */
 796                 CM6206_REG3_FLYSPEED_DEFAULT |
 797                 CM6206_REG3_VRAP25EN |
 798                 CM6206_REG3_FOE |
 799                 CM6206_REG3_ROE |
 800                 CM6206_REG3_CBOE |
 801                 CM6206_REG3_LOSE |
 802                 CM6206_REG3_HPOE |
 803                 CM6206_REG3_SPDIFI_CANREC,
 804                 /* REG4 is just a bunch of GPIO lines */
 805                 0x0000,
 806                 /* REG5: de-assert AD/DA reset signals */
 807                 CM6206_REG5_DA_RSTN |
 808                 CM6206_REG5_AD_RSTN };
 809
 810         for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
 811                 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
 812                 if (err < 0)
 813                         return err;
 814         }
 815
 816         return err;
 817 }
 818
 819 /* quirk for Plantronics GameCom 780 with CM6302 chip */
 820 static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
 821 {
 822         /* set the initial volume and don't change; other values are either
 823          * too loud or silent due to firmware bug (bko#65251)
 824          */
 825         u8 buf[2] = { 0x74, 0xe3 };
 826         return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
 827                         USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
 828                         UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
 829 }
 830
 831 /*
 832  * Novation Twitch DJ controller
 833  * Focusrite Novation Saffire 6 USB audio card
 834  */
 835 static int snd_usb_novation_boot_quirk(struct usb_device *dev)
 836 {
 837         /* preemptively set up the device because otherwise the
 838          * raw MIDI endpoints are not active */
 839         usb_set_interface(dev, 0, 1);
 840         return 0;
 841 }
 842
 843 /*
 844  * This call will put the synth in "USB send" mode, i.e it will send MIDI
 845  * messages through USB (this is disabled at startup). The synth will
 846  * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
 847  * sign on its LCD. Values here are chosen based on sniffing USB traffic
 848  * under Windows.
 849  */
 850 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
 851 {
 852         int err, actual_length;
 853         /* "midi send" enable */
 854         static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
 855         void *buf;
 856
 857         if (snd_usb_pipe_sanity_check(dev, usb_sndintpipe(dev, 0x05)))
 858                 return -EINVAL;
 859         buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
 860         if (!buf)
 861                 return -ENOMEM;
 862         err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
 863                         ARRAY_SIZE(seq), &actual_length, 1000);
 864         kfree(buf);
 865         if (err < 0)
 866                 return err;
 867
 868         return 0;
 869 }
 870
 871 /*
 872  * Some sound cards from Native Instruments are in fact compliant to the USB
 873  * audio standard of version 2 and other approved USB standards, even though
 874  * they come up as vendor-specific device when first connected.
 875  *
 876  * However, they can be told to come up with a new set of descriptors
 877  * upon their next enumeration, and the interfaces announced by the new
 878  * descriptors will then be handled by the kernel's class drivers. As the
 879  * product ID will also change, no further checks are required.
 880  */
 881
 882 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
 883 {
 884         int ret;
 885
 886         if (snd_usb_pipe_sanity_check(dev, usb_sndctrlpipe(dev, 0)))
 887                 return -EINVAL;
 888         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 889                                   0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 890                                   1, 0, NULL, 0, 1000);
 891
 892         if (ret < 0)
 893                 return ret;
 894
 895         usb_reset_device(dev);
 896
 897         /* return -EAGAIN, so the creation of an audio interface for this
 898          * temporary device is aborted. The device will reconnect with a
 899          * new product ID */
 900         return -EAGAIN;
 901 }
 902
 903 static void mbox2_setup_48_24_magic(struct usb_device *dev)
 904 {
 905         u8 srate[3];
 906         u8 temp[12];
 907
 908         /* Choose 48000Hz permanently */
 909         srate[0] = 0x80;
 910         srate[1] = 0xbb;
 911         srate[2] = 0x00;
 912
 913         /* Send the magic! */
 914         snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
 915                 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
 916         snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
 917                 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
 918         snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
 919                 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
 920         snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
 921                 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
 922         return;
 923 }
 924
 925 /* Digidesign Mbox 2 needs to load firmware onboard
 926  * and driver must wait a few seconds for initialisation.
 927  */
 928
 929 #define MBOX2_FIRMWARE_SIZE    646
 930 #define MBOX2_BOOT_LOADING     0x01 /* Hard coded into the device */
 931 #define MBOX2_BOOT_READY       0x02 /* Hard coded into the device */
 932
 933 static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
 934 {
 935         struct usb_host_config *config = dev->actconfig;
 936         int err;
 937         u8 bootresponse[0x12];
 938         int fwsize;
 939         int count;
 940
 941         fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
 942
 943         if (fwsize != MBOX2_FIRMWARE_SIZE) {
 944                 dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize);
 945                 return -ENODEV;
 946         }
 947
 948         dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n");
 949
 950         count = 0;
 951         bootresponse[0] = MBOX2_BOOT_LOADING;
 952         while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
 953                 msleep(500); /* 0.5 second delay */
 954                 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
 955                         /* Control magic - load onboard firmware */
 956                         0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
 957                 if (bootresponse[0] == MBOX2_BOOT_READY)
 958                         break;
 959                 dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n");
 960                 count++;
 961         }
 962
 963         if (bootresponse[0] != MBOX2_BOOT_READY) {
 964                 dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
 965                 return -ENODEV;
 966         }
 967
 968         dev_dbg(&dev->dev, "device initialised!\n");
 969
 970         err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 971                 &dev->descriptor, sizeof(dev->descriptor));
 972         config = dev->actconfig;
 973         if (err < 0)
 974                 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
 975
 976         err = usb_reset_configuration(dev);
 977         if (err < 0)
 978                 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
 979         dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n",
 980                 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 981
 982         mbox2_setup_48_24_magic(dev);
 983
 984         dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz");
 985
 986         return 0; /* Successful boot */
 987 }
 988
 989 static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)
 990 {
 991         int err;
 992
 993         dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n");
 994
 995         if (snd_usb_pipe_sanity_check(dev, usb_sndctrlpipe(dev, 0)))
 996                 return -EINVAL;
 997         /* If the Axe-Fx III has not fully booted, it will timeout when trying
 998          * to enable the audio streaming interface. A more generous timeout is
 999          * used here to detect when the Axe-Fx III has finished booting as the
1000          * set interface message will be acked once it has
1001          */
1002         err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1003                                 USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,
1004                                 1, 1, NULL, 0, 120000);
1005         if (err < 0) {
1006                 dev_err(&dev->dev,
1007                         "failed waiting for Axe-Fx III to boot: %d\n", err);
1008                 return err;
1009         }
1010
1011         dev_dbg(&dev->dev, "Axe-Fx III is now ready\n");
1012
1013         err = usb_set_interface(dev, 1, 0);
1014         if (err < 0)
1015                 dev_dbg(&dev->dev,
1016                         "error stopping Axe-Fx III interface: %d\n", err);
1017
1018         return 0;
1019 }
1020
1021
1022 #define MICROBOOK_BUF_SIZE 128
1023
1024 static int snd_usb_motu_microbookii_communicate(struct usb_device *dev, u8 *buf,
1025                                                 int buf_size, int *length)
1026 {
1027         int err, actual_length;
1028
1029         if (snd_usb_pipe_sanity_check(dev, usb_sndintpipe(dev, 0x01)))
1030                 return -EINVAL;
1031         err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x01), buf, *length,
1032                                 &actual_length, 1000);
1033         if (err < 0)
1034                 return err;
1035
1036         print_hex_dump(KERN_DEBUG, "MicroBookII snd: ", DUMP_PREFIX_NONE, 16, 1,
1037                        buf, actual_length, false);
1038
1039         memset(buf, 0, buf_size);
1040
1041         if (snd_usb_pipe_sanity_check(dev, usb_rcvintpipe(dev, 0x82)))
1042                 return -EINVAL;
1043         err = usb_interrupt_msg(dev, usb_rcvintpipe(dev, 0x82), buf, buf_size,
1044                                 &actual_length, 1000);
1045         if (err < 0)
1046                 return err;
1047
1048         print_hex_dump(KERN_DEBUG, "MicroBookII rcv: ", DUMP_PREFIX_NONE, 16, 1,
1049                        buf, actual_length, false);
1050
1051         *length = actual_length;
1052         return 0;
1053 }
1054
1055 static int snd_usb_motu_microbookii_boot_quirk(struct usb_device *dev)
1056 {
1057         int err, actual_length, poll_attempts = 0;
1058         static const u8 set_samplerate_seq[] = { 0x00, 0x00, 0x00, 0x00,
1059                                                  0x00, 0x00, 0x0b, 0x14,
1060                                                  0x00, 0x00, 0x00, 0x01 };
1061         static const u8 poll_ready_seq[] = { 0x00, 0x04, 0x00, 0x00,
1062                                              0x00, 0x00, 0x0b, 0x18 };
1063         u8 *buf = kzalloc(MICROBOOK_BUF_SIZE, GFP_KERNEL);
1064
1065         if (!buf)
1066                 return -ENOMEM;
1067
1068         dev_info(&dev->dev, "Waiting for MOTU Microbook II to boot up...\n");
1069
1070         /* First we tell the device which sample rate to use. */
1071         memcpy(buf, set_samplerate_seq, sizeof(set_samplerate_seq));
1072         actual_length = sizeof(set_samplerate_seq);
1073         err = snd_usb_motu_microbookii_communicate(dev, buf, MICROBOOK_BUF_SIZE,
1074                                                    &actual_length);
1075
1076         if (err < 0) {
1077                 dev_err(&dev->dev,
1078                         "failed setting the sample rate for Motu MicroBook II: %d\n",
1079                         err);
1080                 goto free_buf;
1081         }
1082
1083         /* Then we poll every 100 ms until the device informs of its readiness. */
1084         while (true) {
1085                 if (++poll_attempts > 100) {
1086                         dev_err(&dev->dev,
1087                                 "failed booting Motu MicroBook II: timeout\n");
1088                         err = -ENODEV;
1089                         goto free_buf;
1090                 }
1091
1092                 memset(buf, 0, MICROBOOK_BUF_SIZE);
1093                 memcpy(buf, poll_ready_seq, sizeof(poll_ready_seq));
1094
1095                 actual_length = sizeof(poll_ready_seq);
1096                 err = snd_usb_motu_microbookii_communicate(
1097                         dev, buf, MICROBOOK_BUF_SIZE, &actual_length);
1098                 if (err < 0) {
1099                         dev_err(&dev->dev,
1100                                 "failed booting Motu MicroBook II: communication error %d\n",
1101                                 err);
1102                         goto free_buf;
1103                 }
1104
1105                 /* the device signals its readiness through a message of the
1106                  * form
1107                  *           XX 06 00 00 00 00 0b 18  00 00 00 01
1108                  * If the device is not yet ready to accept audio data, the
1109                  * last byte of that sequence is 00.
1110                  */
1111                 if (actual_length == 12 && buf[actual_length - 1] == 1)
1112                         break;
1113
1114                 msleep(100);
1115         }
1116
1117         dev_info(&dev->dev, "MOTU MicroBook II ready\n");
1118
1119 free_buf:
1120         kfree(buf);
1121         return err;
1122 }
1123
1124 static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev)
1125 {
1126         int ret;
1127
1128         if (snd_usb_pipe_sanity_check(dev, usb_sndctrlpipe(dev, 0)))
1129                 return -EINVAL;
1130         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1131                               1, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1132                               0x0, 0, NULL, 0, 1000);
1133
1134         if (ret < 0)
1135                 return ret;
1136
1137         msleep(2000);
1138
1139         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1140                               1, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1141                               0x20, 0, NULL, 0, 1000);
1142
1143         if (ret < 0)
1144                 return ret;
1145
1146         return 0;
1147 }
1148
1149 /*
1150  * Setup quirks
1151  */
1152 #define MAUDIO_SET              0x01 /* parse device_setup */
1153 #define MAUDIO_SET_COMPATIBLE   0x80 /* use only "win-compatible" interfaces */
1154 #define MAUDIO_SET_DTS          0x02 /* enable DTS Digital Output */
1155 #define MAUDIO_SET_96K          0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
1156 #define MAUDIO_SET_24B          0x08 /* 24bits sample if set, 16bits otherwise */
1157 #define MAUDIO_SET_DI           0x10 /* enable Digital Input */
1158 #define MAUDIO_SET_MASK         0x1f /* bit mask for setup value */
1159 #define MAUDIO_SET_24B_48K_DI    0x19 /* 24bits+48KHz+Digital Input */
1160 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
1161 #define MAUDIO_SET_16B_48K_DI    0x11 /* 16bits+48KHz+Digital Input */
1162 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
1163
1164 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
1165                                       int iface, int altno)
1166 {
1167         /* Reset ALL ifaces to 0 altsetting.
1168          * Call it for every possible altsetting of every interface.
1169          */
1170         usb_set_interface(chip->dev, iface, 0);
1171         if (chip->setup & MAUDIO_SET) {
1172                 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
1173                         if (iface != 1 && iface != 2)
1174                                 return 1; /* skip all interfaces but 1 and 2 */
1175                 } else {
1176                         unsigned int mask;
1177                         if (iface == 1 || iface == 2)
1178                                 return 1; /* skip interfaces 1 and 2 */
1179                         if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1180                                 return 1; /* skip this altsetting */
1181                         mask = chip->setup & MAUDIO_SET_MASK;
1182                         if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1183                                 return 1; /* skip this altsetting */
1184                         if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1185                                 return 1; /* skip this altsetting */
1186                         if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
1187                                 return 1; /* skip this altsetting */
1188                 }
1189         }
1190         usb_audio_dbg(chip,
1191                     "using altsetting %d for interface %d config %d\n",
1192                     altno, iface, chip->setup);
1193         return 0; /* keep this altsetting */
1194 }
1195
1196 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
1197                                          int iface,
1198                                          int altno)
1199 {
1200         /* Reset ALL ifaces to 0 altsetting.
1201          * Call it for every possible altsetting of every interface.
1202          */
1203         usb_set_interface(chip->dev, iface, 0);
1204
1205         if (chip->setup & MAUDIO_SET) {
1206                 unsigned int mask;
1207                 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
1208                         return 1; /* skip this altsetting */
1209                 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1210                         return 1; /* skip this altsetting */
1211                 mask = chip->setup & MAUDIO_SET_MASK;
1212                 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1213                         return 1; /* skip this altsetting */
1214                 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1215                         return 1; /* skip this altsetting */
1216                 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
1217                         return 1; /* skip this altsetting */
1218                 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
1219                         return 1; /* skip this altsetting */
1220         }
1221
1222         return 0; /* keep this altsetting */
1223 }
1224
1225 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
1226                                            int iface, int altno)
1227 {
1228         /* Reset ALL ifaces to 0 altsetting.
1229          * Call it for every possible altsetting of every interface.
1230          */
1231         usb_set_interface(chip->dev, iface, 0);
1232
1233         /* possible configuration where both inputs and only one output is
1234          *used is not supported by the current setup
1235          */
1236         if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
1237                 if (chip->setup & MAUDIO_SET_96K) {
1238                         if (altno != 3 && altno != 6)
1239                                 return 1;
1240                 } else if (chip->setup & MAUDIO_SET_DI) {
1241                         if (iface == 4)
1242                                 return 1; /* no analog input */
1243                         if (altno != 2 && altno != 5)
1244                                 return 1; /* enable only altsets 2 and 5 */
1245                 } else {
1246                         if (iface == 5)
1247                                 return 1; /* disable digialt input */
1248                         if (altno != 2 && altno != 5)
1249                                 return 1; /* enalbe only altsets 2 and 5 */
1250                 }
1251         } else {
1252                 /* keep only 16-Bit mode */
1253                 if (altno != 1)
1254                         return 1;
1255         }
1256
1257         usb_audio_dbg(chip,
1258                     "using altsetting %d for interface %d config %d\n",
1259                     altno, iface, chip->setup);
1260         return 0; /* keep this altsetting */
1261 }
1262
1263 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
1264                                   int iface,
1265                                   int altno)
1266 {
1267         /* audiophile usb: skip altsets incompatible with device_setup */
1268         if (chip->usb_id == USB_ID(0x0763, 0x2003))
1269                 return audiophile_skip_setting_quirk(chip, iface, altno);
1270         /* quattro usb: skip altsets incompatible with device_setup */
1271         if (chip->usb_id == USB_ID(0x0763, 0x2001))
1272                 return quattro_skip_setting_quirk(chip, iface, altno);
1273         /* fasttrackpro usb: skip altsets incompatible with device_setup */
1274         if (chip->usb_id == USB_ID(0x0763, 0x2012))
1275                 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
1276
1277         return 0;
1278 }
1279
1280 int snd_usb_apply_boot_quirk(struct usb_device *dev,
1281                              struct usb_interface *intf,
1282                              const struct snd_usb_audio_quirk *quirk,
1283                              unsigned int id)
1284 {
1285         switch (id) {
1286         case USB_ID(0x041e, 0x3000):
1287                 /* SB Extigy needs special boot-up sequence */
1288                 /* if more models come, this will go to the quirk list. */
1289                 return snd_usb_extigy_boot_quirk(dev, intf);
1290
1291         case USB_ID(0x041e, 0x3020):
1292                 /* SB Audigy 2 NX needs its own boot-up magic, too */
1293                 return snd_usb_audigy2nx_boot_quirk(dev);
1294
1295         case USB_ID(0x10f5, 0x0200):
1296                 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
1297                 return snd_usb_cm106_boot_quirk(dev);
1298
1299         case USB_ID(0x0d8c, 0x0102):
1300                 /* C-Media CM6206 / CM106-Like Sound Device */
1301         case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
1302                 return snd_usb_cm6206_boot_quirk(dev);
1303
1304         case USB_ID(0x0dba, 0x3000):
1305                 /* Digidesign Mbox 2 */
1306                 return snd_usb_mbox2_boot_quirk(dev);
1307
1308         case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
1309         case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
1310                 return snd_usb_novation_boot_quirk(dev);
1311
1312         case USB_ID(0x133e, 0x0815):
1313                 /* Access Music VirusTI Desktop */
1314                 return snd_usb_accessmusic_boot_quirk(dev);
1315
1316         case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
1317         case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
1318         case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
1319                 return snd_usb_nativeinstruments_boot_quirk(dev);
1320         case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
1321                 return snd_usb_fasttrackpro_boot_quirk(dev);
1322         case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
1323                 return snd_usb_gamecon780_boot_quirk(dev);
1324         case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */
1325                 return snd_usb_axefx3_boot_quirk(dev);
1326         case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook II */
1327                 /*
1328                  * For some reason interface 3 with vendor-spec class is
1329                  * detected on MicroBook IIc.
1330                  */
1331                 if (get_iface_desc(intf->altsetting)->bInterfaceClass ==
1332                     USB_CLASS_VENDOR_SPEC &&
1333                     get_iface_desc(intf->altsetting)->bInterfaceNumber < 3)
1334                         return snd_usb_motu_microbookii_boot_quirk(dev);
1335                 break;
1336         }
1337
1338         return 0;
1339 }
1340
1341 int snd_usb_apply_boot_quirk_once(struct usb_device *dev,
1342                                   struct usb_interface *intf,
1343                                   const struct snd_usb_audio_quirk *quirk,
1344                                   unsigned int id)
1345 {
1346         switch (id) {
1347         case USB_ID(0x07fd, 0x0008): /* MOTU M Series */
1348                 return snd_usb_motu_m_series_boot_quirk(dev);
1349         }
1350
1351         return 0;
1352 }
1353
1354 /*
1355  * check if the device uses big-endian samples
1356  */
1357 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
1358 {
1359         /* it depends on altsetting whether the device is big-endian or not */
1360         switch (chip->usb_id) {
1361         case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
1362                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1363                         fp->altsetting == 5 || fp->altsetting == 6)
1364                         return 1;
1365                 break;
1366         case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1367                 if (chip->setup == 0x00 ||
1368                         fp->altsetting == 1 || fp->altsetting == 2 ||
1369                         fp->altsetting == 3)
1370                         return 1;
1371                 break;
1372         case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1373                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1374                         fp->altsetting == 5 || fp->altsetting == 6)
1375                         return 1;
1376                 break;
1377         }
1378         return 0;
1379 }
1380
1381 /*
1382  * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
1383  * not for interface.
1384  */
1385
1386 enum {
1387         EMU_QUIRK_SR_44100HZ = 0,
1388         EMU_QUIRK_SR_48000HZ,
1389         EMU_QUIRK_SR_88200HZ,
1390         EMU_QUIRK_SR_96000HZ,
1391         EMU_QUIRK_SR_176400HZ,
1392         EMU_QUIRK_SR_192000HZ
1393 };
1394
1395 static void set_format_emu_quirk(struct snd_usb_substream *subs,
1396                                  struct audioformat *fmt)
1397 {
1398         unsigned char emu_samplerate_id = 0;
1399
1400         /* When capture is active
1401          * sample rate shouldn't be changed
1402          * by playback substream
1403          */
1404         if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1405                 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
1406                         return;
1407         }
1408
1409         switch (fmt->rate_min) {
1410         case 48000:
1411                 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1412                 break;
1413         case 88200:
1414                 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1415                 break;
1416         case 96000:
1417                 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1418                 break;
1419         case 176400:
1420                 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1421                 break;
1422         case 192000:
1423                 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1424                 break;
1425         default:
1426                 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1427                 break;
1428         }
1429         snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1430         subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
1431 }
1432
1433 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1434                               struct audioformat *fmt)
1435 {
1436         switch (subs->stream->chip->usb_id) {
1437         case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1438         case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1439         case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1440         case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
1441                 set_format_emu_quirk(subs, fmt);
1442                 break;
1443         case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */
1444                 subs->stream_offset_adj = 2;
1445                 break;
1446         }
1447 }
1448
1449 bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
1450 {
1451         /* devices which do not support reading the sample rate. */
1452         switch (chip->usb_id) {
1453         case USB_ID(0x041E, 0x4080): /* Creative Live Cam VF0610 */
1454         case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
1455         case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
1456         case USB_ID(0x05A3, 0x9420): /* ELP HD USB Camera */
1457         case USB_ID(0x05a7, 0x1020): /* Bose Companion 5 */
1458         case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
1459         case USB_ID(0x1395, 0x740a): /* Sennheiser DECT */
1460         case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
1461         case USB_ID(0x21B4, 0x0081): /* AudioQuest DragonFly */
1462         case USB_ID(0x2912, 0x30c8): /* Audioengine D1 */
1463         case USB_ID(0x413c, 0xa506): /* Dell AE515 sound bar */
1464         case USB_ID(0x046d, 0x084c): /* Logitech ConferenceCam Connect */
1465                 return true;
1466         }
1467
1468         /* devices of these vendors don't support reading rate, either */
1469         switch (USB_ID_VENDOR(chip->usb_id)) {
1470         case 0x045E: /* MS Lifecam */
1471         case 0x047F: /* Plantronics */
1472         case 0x1de7: /* Phoenix Audio */
1473                 return true;
1474         }
1475
1476         return false;
1477 }
1478
1479 /* ITF-USB DSD based DACs need a vendor cmd to switch
1480  * between PCM and native DSD mode
1481  */
1482 static bool is_itf_usb_dsd_dac(unsigned int id)
1483 {
1484         switch (id) {
1485         case USB_ID(0x154e, 0x1002): /* Denon DCD-1500RE */
1486         case USB_ID(0x154e, 0x1003): /* Denon DA-300USB */
1487         case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */
1488         case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */
1489         case USB_ID(0x1852, 0x5065): /* Luxman DA-06 */
1490         case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-501V2/UD-503/NT-503 */
1491         case USB_ID(0x0644, 0x8044): /* Esoteric D-05X */
1492         case USB_ID(0x0644, 0x804a): /* TEAC UD-301 */
1493                 return true;
1494         }
1495         return false;
1496 }
1497
1498 int snd_usb_select_mode_quirk(struct snd_usb_substream *subs,
1499                               struct audioformat *fmt)
1500 {
1501         struct usb_device *dev = subs->dev;
1502         int err;
1503
1504         if (is_itf_usb_dsd_dac(subs->stream->chip->usb_id)) {
1505                 /* First switch to alt set 0, otherwise the mode switch cmd
1506                  * will not be accepted by the DAC
1507                  */
1508                 err = usb_set_interface(dev, fmt->iface, 0);
1509                 if (err < 0)
1510                         return err;
1511
1512                 msleep(20); /* Delay needed after setting the interface */
1513
1514                 /* Vendor mode switch cmd is required. */
1515                 if (fmt->formats & SNDRV_PCM_FMTBIT_DSD_U32_BE) {
1516                         /* DSD mode (DSD_U32) requested */
1517                         err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1518                                               USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1519                                               1, 1, NULL, 0);
1520                         if (err < 0)
1521                                 return err;
1522
1523                 } else {
1524                         /* PCM or DOP mode (S32) requested */
1525                         /* PCM mode (S16) requested */
1526                         err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1527                                               USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1528                                               0, 1, NULL, 0);
1529                         if (err < 0)
1530                                 return err;
1531
1532                 }
1533                 msleep(20);
1534         }
1535         return 0;
1536 }
1537
1538 void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1539 {
1540         /*
1541          * "Playback Design" products send bogus feedback data at the start
1542          * of the stream. Ignore them.
1543          */
1544         if (USB_ID_VENDOR(ep->chip->usb_id) == 0x23ba &&
1545             ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1546                 ep->skip_packets = 4;
1547
1548         /*
1549          * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1550          * world latency varies by approx. +/- 50 frames (at 96KHz) each time
1551          * the stream is (re)started. When skipping packets 16 at endpoint
1552          * start up, the real world latency is stable within +/- 1 frame (also
1553          * across power cycles).
1554          */
1555         if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1556              ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
1557             ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1558                 ep->skip_packets = 16;
1559
1560         /* Work around devices that report unreasonable feedback data */
1561         if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) ||  /* TEAC UD-H01 */
1562              ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
1563             ep->syncmaxsize == 4)
1564                 ep->tenor_fb_quirk = 1;
1565 }
1566
1567 void snd_usb_set_interface_quirk(struct usb_device *dev)
1568 {
1569         struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1570
1571         if (!chip)
1572                 return;
1573         /*
1574          * "Playback Design" products need a 50ms delay after setting the
1575          * USB interface.
1576          */
1577         switch (USB_ID_VENDOR(chip->usb_id)) {
1578         case 0x23ba: /* Playback Design */
1579         case 0x0644: /* TEAC Corp. */
1580                 msleep(50);
1581                 break;
1582         }
1583 }
1584
1585 /* quirk applied after snd_usb_ctl_msg(); not applied during boot quirks */
1586 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1587                            __u8 request, __u8 requesttype, __u16 value,
1588                            __u16 index, void *data, __u16 size)
1589 {
1590         struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1591
1592         if (!chip)
1593                 return;
1594         /*
1595          * "Playback Design" products need a 20ms delay after each
1596          * class compliant request
1597          */
1598         if (USB_ID_VENDOR(chip->usb_id) == 0x23ba &&
1599             (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1600                 msleep(20);
1601
1602         /*
1603          * "TEAC Corp." products need a 20ms delay after each
1604          * class compliant request
1605          */
1606         if (USB_ID_VENDOR(chip->usb_id) == 0x0644 &&
1607             (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1608                 msleep(20);
1609
1610         /* ITF-USB DSD based DACs functionality need a delay
1611          * after each class compliant request
1612          */
1613         if (is_itf_usb_dsd_dac(chip->usb_id)
1614             && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1615                 msleep(20);
1616
1617         /*
1618          * Plantronics headsets (C320, C320-M, etc) need a delay to avoid
1619          * random microhpone failures.
1620          */
1621         if (USB_ID_VENDOR(chip->usb_id) == 0x047f &&
1622             (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1623                 msleep(20);
1624
1625         /* Zoom R16/24, many Logitech(at least H650e/H570e/BCC950),
1626          * Jabra 550a, Kingston HyperX needs a tiny delay here,
1627          * otherwise requests like get/set frequency return
1628          * as failed despite actually succeeding.
1629          */
1630         if ((chip->usb_id == USB_ID(0x1686, 0x00dd) ||
1631              USB_ID_VENDOR(chip->usb_id) == 0x046d  || /* Logitech */
1632              chip->usb_id == USB_ID(0x0b0e, 0x0349) ||
1633              chip->usb_id == USB_ID(0x0951, 0x16ad)) &&
1634             (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1635                 usleep_range(1000, 2000);
1636
1637         /*
1638          * Samsung USBC Headset (AKG) need a tiny delay after each
1639          * class compliant request. (Model number: AAM625R or AAM627R)
1640          */
1641         if (chip->usb_id == USB_ID(0x04e8, 0xa051) &&
1642             (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1643                 usleep_range(5000, 6000);
1644 }
1645
1646 /*
1647  * snd_usb_interface_dsd_format_quirks() is called from format.c to
1648  * augment the PCM format bit-field for DSD types. The UAC standards
1649  * don't have a designated bit field to denote DSD-capable interfaces,
1650  * hence all hardware that is known to support this format has to be
1651  * listed here.
1652  */
1653 u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1654                                         struct audioformat *fp,
1655                                         unsigned int sample_bytes)
1656 {
1657         struct usb_interface *iface;
1658
1659         /* Playback Designs */
1660         if (USB_ID_VENDOR(chip->usb_id) == 0x23ba &&
1661             USB_ID_PRODUCT(chip->usb_id) < 0x0110) {
1662                 switch (fp->altsetting) {
1663                 case 1:
1664                         fp->dsd_dop = true;
1665                         return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1666                 case 2:
1667                         fp->dsd_bitrev = true;
1668                         return SNDRV_PCM_FMTBIT_DSD_U8;
1669                 case 3:
1670                         fp->dsd_bitrev = true;
1671                         return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1672                 }
1673         }
1674
1675         /* XMOS based USB DACs */
1676         switch (chip->usb_id) {
1677         case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */
1678         case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */
1679         case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
1680                 if (fp->altsetting == 2)
1681                         return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1682                 break;
1683
1684         case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
1685         case USB_ID(0x10cb, 0x0103): /* The Bit Opus #3; with fp->dsd_raw */
1686         case USB_ID(0x16d0, 0x06b2): /* NuPrime DAC-10 */
1687         case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */
1688         case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */
1689         case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */
1690         case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */
1691         case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */
1692         case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */
1693         case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
1694         case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */
1695         case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */
1696         case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */
1697         case USB_ID(0x6b42, 0x0042): /* MSB Technology */
1698                 if (fp->altsetting == 3)
1699                         return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1700                 break;
1701
1702         /* Amanero Combo384 USB based DACs with native DSD support */
1703         case USB_ID(0x16d0, 0x071a):  /* Amanero - Combo384 */
1704         case USB_ID(0x2ab6, 0x0004):  /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */
1705         case USB_ID(0x2ab6, 0x0005):  /* T+A USB HD Audio 1 */
1706         case USB_ID(0x2ab6, 0x0006):  /* T+A USB HD Audio 2 */
1707                 if (fp->altsetting == 2) {
1708                         switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
1709                         case 0x199:
1710                                 return SNDRV_PCM_FMTBIT_DSD_U32_LE;
1711                         case 0x19b:
1712                         case 0x203:
1713                                 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1714                         default:
1715                                 break;
1716                         }
1717                 }
1718                 break;
1719         case USB_ID(0x16d0, 0x0a23):
1720                 if (fp->altsetting == 2)
1721                         return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1722                 break;
1723
1724         default:
1725                 break;
1726         }
1727
1728         /* ITF-USB DSD based DACs */
1729         if (is_itf_usb_dsd_dac(chip->usb_id)) {
1730                 iface = usb_ifnum_to_if(chip->dev, fp->iface);
1731
1732                 /* Altsetting 2 support native DSD if the num of altsets is
1733                  * three (0-2),
1734                  * Altsetting 3 support native DSD if the num of altsets is
1735                  * four (0-3).
1736                  */
1737                 if (fp->altsetting == iface->num_altsetting - 1)
1738                         return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1739         }
1740
1741         /* Mostly generic method to detect many DSD-capable implementations -
1742          * from XMOS/Thesycon
1743          */
1744         switch (USB_ID_VENDOR(chip->usb_id)) {
1745         case 0x152a:  /* Thesycon devices */
1746         case 0x20b1:  /* XMOS based devices */
1747         case 0x22d9:  /* Oppo */
1748         case 0x23ba:  /* Playback Designs */
1749         case 0x25ce:  /* Mytek devices */
1750         case 0x278b:  /* Rotel? */
1751         case 0x292b:  /* Gustard/Ess based devices */
1752         case 0x2972:  /* FiiO devices */
1753         case 0x2ab6:  /* T+A devices */
1754         case 0x3353:  /* Khadas devices */
1755         case 0x3842:  /* EVGA */
1756         case 0xc502:  /* HiBy devices */
1757                 if (fp->dsd_raw)
1758                         return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1759                 break;
1760         default:
1761                 break;
1762
1763         }
1764
1765         return 0;
1766 }
1767
1768 void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
1769                                           struct audioformat *fp,
1770                                           int stream)
1771 {
1772         switch (chip->usb_id) {
1773         case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
1774                 /* Optoplay sets the sample rate attribute although
1775                  * it seems not supporting it in fact.
1776                  */
1777                 fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
1778                 break;
1779         case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
1780         case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1781                 /* doesn't set the sample rate attribute, but supports it */
1782                 fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
1783                 break;
1784         case USB_ID(0x0763, 0x2001):  /* M-Audio Quattro USB */
1785         case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
1786         case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
1787         case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
1788                                         an older model 77d:223) */
1789         /*
1790          * plantronics headset and Griffin iMic have set adaptive-in
1791          * although it's really not...
1792          */
1793                 fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
1794                 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
1795                         fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
1796                 else
1797                         fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
1798                 break;
1799         case USB_ID(0x07fd, 0x0004):  /* MOTU MicroBook IIc */
1800                 /*
1801                  * MaxPacketsOnly attribute is erroneously set in endpoint
1802                  * descriptors. As a result this card produces noise with
1803                  * all sample rates other than 96 KHz.
1804                  */
1805                 fp->attributes &= ~UAC_EP_CS_ATTR_FILL_MAX;
1806                 break;
1807         case USB_ID(0x1235, 0x8202):  /* Focusrite Scarlett 2i2 2nd gen */
1808         case USB_ID(0x1235, 0x8205):  /* Focusrite Scarlett Solo 2nd gen */
1809                 /*
1810                  * Reports that playback should use Synch: Synchronous
1811                  * while still providing a feedback endpoint.
1812                  * Synchronous causes snapping on some sample rates.
1813                  * Force it to use Synch: Asynchronous.
1814                  */
1815                 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1816                         fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
1817                         fp->ep_attr |= USB_ENDPOINT_SYNC_ASYNC;
1818                 }
1819                 break;
1820         }
1821 }
1822
1823 /*
1824  * registration quirk:
1825  * the registration is skipped if a device matches with the given ID,
1826  * unless the interface reaches to the defined one.  This is for delaying
1827  * the registration until the last known interface, so that the card and
1828  * devices appear at the same time.
1829  */
1830
1831 struct registration_quirk {
1832         unsigned int usb_id;    /* composed via USB_ID() */
1833         unsigned int interface; /* the interface to trigger register */
1834 };
1835
1836 #define REG_QUIRK_ENTRY(vendor, product, iface) \
1837         { .usb_id = USB_ID(vendor, product), .interface = (iface) }
1838
1839 static const struct registration_quirk registration_quirks[] = {
1840         REG_QUIRK_ENTRY(0x0951, 0x16d8, 2),     /* Kingston HyperX AMP */
1841         REG_QUIRK_ENTRY(0x0951, 0x16ed, 2),     /* Kingston HyperX Cloud Alpha S */
1842         REG_QUIRK_ENTRY(0x0951, 0x16ea, 2),     /* Kingston HyperX Cloud Flight S */
1843         REG_QUIRK_ENTRY(0x0ecb, 0x1f46, 2),     /* JBL Quantum 600 */
1844         REG_QUIRK_ENTRY(0x0ecb, 0x1f47, 2),     /* JBL Quantum 800 */
1845         REG_QUIRK_ENTRY(0x0ecb, 0x1f4c, 2),     /* JBL Quantum 400 */
1846         REG_QUIRK_ENTRY(0x0ecb, 0x2039, 2),     /* JBL Quantum 400 */
1847         REG_QUIRK_ENTRY(0x0ecb, 0x203c, 2),     /* JBL Quantum 600 */
1848         REG_QUIRK_ENTRY(0x0ecb, 0x203e, 2),     /* JBL Quantum 800 */
1849         { 0 }                                   /* terminator */
1850 };
1851
1852 /* return true if skipping registration */
1853 bool snd_usb_registration_quirk(struct snd_usb_audio *chip, int iface)
1854 {
1855         const struct registration_quirk *q;
1856
1857         for (q = registration_quirks; q->usb_id; q++)
1858                 if (chip->usb_id == q->usb_id)
1859                         return iface != q->interface;
1860
1861         /* Register as normal */
1862         return false;
1863 }