1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License as published by 4 * the Free Software Foundation; either version 2 of the License, or 5 * (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 15 */ 16 17 #include <linux/init.h> 18 #include <linux/slab.h> 19 #include <linux/usb.h> 20 #include <linux/usb/audio.h> 21 #include <linux/usb/midi.h> 22 23 #include <sound/control.h> 24 #include <sound/core.h> 25 #include <sound/info.h> 26 #include <sound/pcm.h> 27 28 #include "usbaudio.h" 29 #include "card.h" 30 #include "mixer.h" 31 #include "mixer_quirks.h" 32 #include "midi.h" 33 #include "quirks.h" 34 #include "helper.h" 35 #include "endpoint.h" 36 #include "pcm.h" 37 #include "clock.h" 38 #include "stream.h" 39 40 /* 41 * handle the quirks for the contained interfaces 42 */ 43 static int create_composite_quirk(struct snd_usb_audio *chip, 44 struct usb_interface *iface, 45 struct usb_driver *driver, 46 const struct snd_usb_audio_quirk *quirk_comp) 47 { 48 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber; 49 const struct snd_usb_audio_quirk *quirk; 50 int err; 51 52 for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) { 53 iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); 54 if (!iface) 55 continue; 56 if (quirk->ifnum != probed_ifnum && 57 usb_interface_claimed(iface)) 58 continue; 59 err = snd_usb_create_quirk(chip, iface, driver, quirk); 60 if (err < 0) 61 return err; 62 } 63 64 for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) { 65 iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); 66 if (!iface) 67 continue; 68 if (quirk->ifnum != probed_ifnum && 69 !usb_interface_claimed(iface)) 70 usb_driver_claim_interface(driver, iface, (void *)-1L); 71 } 72 73 return 0; 74 } 75 76 static int ignore_interface_quirk(struct snd_usb_audio *chip, 77 struct usb_interface *iface, 78 struct usb_driver *driver, 79 const struct snd_usb_audio_quirk *quirk) 80 { 81 return 0; 82 } 83 84 85 /* 86 * Allow alignment on audio sub-slot (channel samples) rather than 87 * on audio slots (audio frames) 88 */ 89 static int create_align_transfer_quirk(struct snd_usb_audio *chip, 90 struct usb_interface *iface, 91 struct usb_driver *driver, 92 const struct snd_usb_audio_quirk *quirk) 93 { 94 chip->txfr_quirk = 1; 95 return 1; /* Continue with creating streams and mixer */ 96 } 97 98 static int create_any_midi_quirk(struct snd_usb_audio *chip, 99 struct usb_interface *intf, 100 struct usb_driver *driver, 101 const struct snd_usb_audio_quirk *quirk) 102 { 103 return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk); 104 } 105 106 /* 107 * create a stream for an interface with proper descriptors 108 */ 109 static int create_standard_audio_quirk(struct snd_usb_audio *chip, 110 struct usb_interface *iface, 111 struct usb_driver *driver, 112 const struct snd_usb_audio_quirk *quirk) 113 { 114 struct usb_host_interface *alts; 115 struct usb_interface_descriptor *altsd; 116 int err; 117 118 alts = &iface->altsetting[0]; 119 altsd = get_iface_desc(alts); 120 err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber); 121 if (err < 0) { 122 usb_audio_err(chip, "cannot setup if %d: error %d\n", 123 altsd->bInterfaceNumber, err); 124 return err; 125 } 126 /* reset the current interface */ 127 usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); 128 return 0; 129 } 130 131 /* 132 * create a stream for an endpoint/altsetting without proper descriptors 133 */ 134 static int create_fixed_stream_quirk(struct snd_usb_audio *chip, 135 struct usb_interface *iface, 136 struct usb_driver *driver, 137 const struct snd_usb_audio_quirk *quirk) 138 { 139 struct audioformat *fp; 140 struct usb_host_interface *alts; 141 struct usb_interface_descriptor *altsd; 142 int stream, err; 143 unsigned *rate_table = NULL; 144 145 fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL); 146 if (!fp) { 147 usb_audio_err(chip, "cannot memdup\n"); 148 return -ENOMEM; 149 } 150 if (fp->nr_rates > MAX_NR_RATES) { 151 kfree(fp); 152 return -EINVAL; 153 } 154 if (fp->nr_rates > 0) { 155 rate_table = kmemdup(fp->rate_table, 156 sizeof(int) * fp->nr_rates, GFP_KERNEL); 157 if (!rate_table) { 158 kfree(fp); 159 return -ENOMEM; 160 } 161 fp->rate_table = rate_table; 162 } 163 164 stream = (fp->endpoint & USB_DIR_IN) 165 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; 166 err = snd_usb_add_audio_stream(chip, stream, fp); 167 if (err < 0) { 168 kfree(fp); 169 kfree(rate_table); 170 return err; 171 } 172 if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || 173 fp->altset_idx >= iface->num_altsetting) { 174 kfree(fp); 175 kfree(rate_table); 176 return -EINVAL; 177 } 178 alts = &iface->altsetting[fp->altset_idx]; 179 altsd = get_iface_desc(alts); 180 fp->protocol = altsd->bInterfaceProtocol; 181 182 if (fp->datainterval == 0) 183 fp->datainterval = snd_usb_parse_datainterval(chip, alts); 184 if (fp->maxpacksize == 0) 185 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); 186 usb_set_interface(chip->dev, fp->iface, 0); 187 snd_usb_init_pitch(chip, fp->iface, alts, fp); 188 snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max); 189 return 0; 190 } 191 192 static int create_auto_pcm_quirk(struct snd_usb_audio *chip, 193 struct usb_interface *iface, 194 struct usb_driver *driver) 195 { 196 struct usb_host_interface *alts; 197 struct usb_interface_descriptor *altsd; 198 struct usb_endpoint_descriptor *epd; 199 struct uac1_as_header_descriptor *ashd; 200 struct uac_format_type_i_discrete_descriptor *fmtd; 201 202 /* 203 * Most Roland/Yamaha audio streaming interfaces have more or less 204 * standard descriptors, but older devices might lack descriptors, and 205 * future ones might change, so ensure that we fail silently if the 206 * interface doesn't look exactly right. 207 */ 208 209 /* must have a non-zero altsetting for streaming */ 210 if (iface->num_altsetting < 2) 211 return -ENODEV; 212 alts = &iface->altsetting[1]; 213 altsd = get_iface_desc(alts); 214 215 /* must have an isochronous endpoint for streaming */ 216 if (altsd->bNumEndpoints < 1) 217 return -ENODEV; 218 epd = get_endpoint(alts, 0); 219 if (!usb_endpoint_xfer_isoc(epd)) 220 return -ENODEV; 221 222 /* must have format descriptors */ 223 ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, 224 UAC_AS_GENERAL); 225 fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, 226 UAC_FORMAT_TYPE); 227 if (!ashd || ashd->bLength < 7 || 228 !fmtd || fmtd->bLength < 8) 229 return -ENODEV; 230 231 return create_standard_audio_quirk(chip, iface, driver, NULL); 232 } 233 234 static int create_yamaha_midi_quirk(struct snd_usb_audio *chip, 235 struct usb_interface *iface, 236 struct usb_driver *driver, 237 struct usb_host_interface *alts) 238 { 239 static const struct snd_usb_audio_quirk yamaha_midi_quirk = { 240 .type = QUIRK_MIDI_YAMAHA 241 }; 242 struct usb_midi_in_jack_descriptor *injd; 243 struct usb_midi_out_jack_descriptor *outjd; 244 245 /* must have some valid jack descriptors */ 246 injd = snd_usb_find_csint_desc(alts->extra, alts->extralen, 247 NULL, USB_MS_MIDI_IN_JACK); 248 outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen, 249 NULL, USB_MS_MIDI_OUT_JACK); 250 if (!injd && !outjd) 251 return -ENODEV; 252 if (injd && (injd->bLength < 5 || 253 (injd->bJackType != USB_MS_EMBEDDED && 254 injd->bJackType != USB_MS_EXTERNAL))) 255 return -ENODEV; 256 if (outjd && (outjd->bLength < 6 || 257 (outjd->bJackType != USB_MS_EMBEDDED && 258 outjd->bJackType != USB_MS_EXTERNAL))) 259 return -ENODEV; 260 return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk); 261 } 262 263 static int create_roland_midi_quirk(struct snd_usb_audio *chip, 264 struct usb_interface *iface, 265 struct usb_driver *driver, 266 struct usb_host_interface *alts) 267 { 268 static const struct snd_usb_audio_quirk roland_midi_quirk = { 269 .type = QUIRK_MIDI_ROLAND 270 }; 271 u8 *roland_desc = NULL; 272 273 /* might have a vendor-specific descriptor <06 24 F1 02 ...> */ 274 for (;;) { 275 roland_desc = snd_usb_find_csint_desc(alts->extra, 276 alts->extralen, 277 roland_desc, 0xf1); 278 if (!roland_desc) 279 return -ENODEV; 280 if (roland_desc[0] < 6 || roland_desc[3] != 2) 281 continue; 282 return create_any_midi_quirk(chip, iface, driver, 283 &roland_midi_quirk); 284 } 285 } 286 287 static int create_std_midi_quirk(struct snd_usb_audio *chip, 288 struct usb_interface *iface, 289 struct usb_driver *driver, 290 struct usb_host_interface *alts) 291 { 292 struct usb_ms_header_descriptor *mshd; 293 struct usb_ms_endpoint_descriptor *msepd; 294 295 /* must have the MIDIStreaming interface header descriptor*/ 296 mshd = (struct usb_ms_header_descriptor *)alts->extra; 297 if (alts->extralen < 7 || 298 mshd->bLength < 7 || 299 mshd->bDescriptorType != USB_DT_CS_INTERFACE || 300 mshd->bDescriptorSubtype != USB_MS_HEADER) 301 return -ENODEV; 302 /* must have the MIDIStreaming endpoint descriptor*/ 303 msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra; 304 if (alts->endpoint[0].extralen < 4 || 305 msepd->bLength < 4 || 306 msepd->bDescriptorType != USB_DT_CS_ENDPOINT || 307 msepd->bDescriptorSubtype != UAC_MS_GENERAL || 308 msepd->bNumEmbMIDIJack < 1 || 309 msepd->bNumEmbMIDIJack > 16) 310 return -ENODEV; 311 312 return create_any_midi_quirk(chip, iface, driver, NULL); 313 } 314 315 static int create_auto_midi_quirk(struct snd_usb_audio *chip, 316 struct usb_interface *iface, 317 struct usb_driver *driver) 318 { 319 struct usb_host_interface *alts; 320 struct usb_interface_descriptor *altsd; 321 struct usb_endpoint_descriptor *epd; 322 int err; 323 324 alts = &iface->altsetting[0]; 325 altsd = get_iface_desc(alts); 326 327 /* must have at least one bulk/interrupt endpoint for streaming */ 328 if (altsd->bNumEndpoints < 1) 329 return -ENODEV; 330 epd = get_endpoint(alts, 0); 331 if (!usb_endpoint_xfer_bulk(epd) && 332 !usb_endpoint_xfer_int(epd)) 333 return -ENODEV; 334 335 switch (USB_ID_VENDOR(chip->usb_id)) { 336 case 0x0499: /* Yamaha */ 337 err = create_yamaha_midi_quirk(chip, iface, driver, alts); 338 if (err != -ENODEV) 339 return err; 340 break; 341 case 0x0582: /* Roland */ 342 err = create_roland_midi_quirk(chip, iface, driver, alts); 343 if (err != -ENODEV) 344 return err; 345 break; 346 } 347 348 return create_std_midi_quirk(chip, iface, driver, alts); 349 } 350 351 static int create_autodetect_quirk(struct snd_usb_audio *chip, 352 struct usb_interface *iface, 353 struct usb_driver *driver) 354 { 355 int err; 356 357 err = create_auto_pcm_quirk(chip, iface, driver); 358 if (err == -ENODEV) 359 err = create_auto_midi_quirk(chip, iface, driver); 360 return err; 361 } 362 363 static int create_autodetect_quirks(struct snd_usb_audio *chip, 364 struct usb_interface *iface, 365 struct usb_driver *driver, 366 const struct snd_usb_audio_quirk *quirk) 367 { 368 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber; 369 int ifcount, ifnum, err; 370 371 err = create_autodetect_quirk(chip, iface, driver); 372 if (err < 0) 373 return err; 374 375 /* 376 * ALSA PCM playback/capture devices cannot be registered in two steps, 377 * so we have to claim the other corresponding interface here. 378 */ 379 ifcount = chip->dev->actconfig->desc.bNumInterfaces; 380 for (ifnum = 0; ifnum < ifcount; ifnum++) { 381 if (ifnum == probed_ifnum || quirk->ifnum >= 0) 382 continue; 383 iface = usb_ifnum_to_if(chip->dev, ifnum); 384 if (!iface || 385 usb_interface_claimed(iface) || 386 get_iface_desc(iface->altsetting)->bInterfaceClass != 387 USB_CLASS_VENDOR_SPEC) 388 continue; 389 390 err = create_autodetect_quirk(chip, iface, driver); 391 if (err >= 0) 392 usb_driver_claim_interface(driver, iface, (void *)-1L); 393 } 394 395 return 0; 396 } 397 398 /* 399 * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface. 400 * The only way to detect the sample rate is by looking at wMaxPacketSize. 401 */ 402 static int create_uaxx_quirk(struct snd_usb_audio *chip, 403 struct usb_interface *iface, 404 struct usb_driver *driver, 405 const struct snd_usb_audio_quirk *quirk) 406 { 407 static const struct audioformat ua_format = { 408 .formats = SNDRV_PCM_FMTBIT_S24_3LE, 409 .channels = 2, 410 .fmt_type = UAC_FORMAT_TYPE_I, 411 .altsetting = 1, 412 .altset_idx = 1, 413 .rates = SNDRV_PCM_RATE_CONTINUOUS, 414 }; 415 struct usb_host_interface *alts; 416 struct usb_interface_descriptor *altsd; 417 struct audioformat *fp; 418 int stream, err; 419 420 /* both PCM and MIDI interfaces have 2 or more altsettings */ 421 if (iface->num_altsetting < 2) 422 return -ENXIO; 423 alts = &iface->altsetting[1]; 424 altsd = get_iface_desc(alts); 425 426 if (altsd->bNumEndpoints == 2) { 427 static const struct snd_usb_midi_endpoint_info ua700_ep = { 428 .out_cables = 0x0003, 429 .in_cables = 0x0003 430 }; 431 static const struct snd_usb_audio_quirk ua700_quirk = { 432 .type = QUIRK_MIDI_FIXED_ENDPOINT, 433 .data = &ua700_ep 434 }; 435 static const struct snd_usb_midi_endpoint_info uaxx_ep = { 436 .out_cables = 0x0001, 437 .in_cables = 0x0001 438 }; 439 static const struct snd_usb_audio_quirk uaxx_quirk = { 440 .type = QUIRK_MIDI_FIXED_ENDPOINT, 441 .data = &uaxx_ep 442 }; 443 const struct snd_usb_audio_quirk *quirk = 444 chip->usb_id == USB_ID(0x0582, 0x002b) 445 ? &ua700_quirk : &uaxx_quirk; 446 return snd_usbmidi_create(chip->card, iface, 447 &chip->midi_list, quirk); 448 } 449 450 if (altsd->bNumEndpoints != 1) 451 return -ENXIO; 452 453 fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL); 454 if (!fp) 455 return -ENOMEM; 456 457 fp->iface = altsd->bInterfaceNumber; 458 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; 459 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; 460 fp->datainterval = 0; 461 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); 462 463 switch (fp->maxpacksize) { 464 case 0x120: 465 fp->rate_max = fp->rate_min = 44100; 466 break; 467 case 0x138: 468 case 0x140: 469 fp->rate_max = fp->rate_min = 48000; 470 break; 471 case 0x258: 472 case 0x260: 473 fp->rate_max = fp->rate_min = 96000; 474 break; 475 default: 476 usb_audio_err(chip, "unknown sample rate\n"); 477 kfree(fp); 478 return -ENXIO; 479 } 480 481 stream = (fp->endpoint & USB_DIR_IN) 482 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; 483 err = snd_usb_add_audio_stream(chip, stream, fp); 484 if (err < 0) { 485 kfree(fp); 486 return err; 487 } 488 usb_set_interface(chip->dev, fp->iface, 0); 489 return 0; 490 } 491 492 /* 493 * Create a standard mixer for the specified interface. 494 */ 495 static int create_standard_mixer_quirk(struct snd_usb_audio *chip, 496 struct usb_interface *iface, 497 struct usb_driver *driver, 498 const struct snd_usb_audio_quirk *quirk) 499 { 500 if (quirk->ifnum < 0) 501 return 0; 502 503 return snd_usb_create_mixer(chip, quirk->ifnum, 0); 504 } 505 506 /* 507 * audio-interface quirks 508 * 509 * returns zero if no standard audio/MIDI parsing is needed. 510 * returns a positive value if standard audio/midi interfaces are parsed 511 * after this. 512 * returns a negative value at error. 513 */ 514 int snd_usb_create_quirk(struct snd_usb_audio *chip, 515 struct usb_interface *iface, 516 struct usb_driver *driver, 517 const struct snd_usb_audio_quirk *quirk) 518 { 519 typedef int (*quirk_func_t)(struct snd_usb_audio *, 520 struct usb_interface *, 521 struct usb_driver *, 522 const struct snd_usb_audio_quirk *); 523 static const quirk_func_t quirk_funcs[] = { 524 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk, 525 [QUIRK_COMPOSITE] = create_composite_quirk, 526 [QUIRK_AUTODETECT] = create_autodetect_quirks, 527 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk, 528 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk, 529 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk, 530 [QUIRK_MIDI_ROLAND] = create_any_midi_quirk, 531 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk, 532 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk, 533 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk, 534 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk, 535 [QUIRK_MIDI_CME] = create_any_midi_quirk, 536 [QUIRK_MIDI_AKAI] = create_any_midi_quirk, 537 [QUIRK_MIDI_FTDI] = create_any_midi_quirk, 538 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk, 539 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk, 540 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk, 541 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk, 542 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk, 543 }; 544 545 if (quirk->type < QUIRK_TYPE_COUNT) { 546 return quirk_funcs[quirk->type](chip, iface, driver, quirk); 547 } else { 548 usb_audio_err(chip, "invalid quirk type %d\n", quirk->type); 549 return -ENXIO; 550 } 551 } 552 553 /* 554 * boot quirks 555 */ 556 557 #define EXTIGY_FIRMWARE_SIZE_OLD 794 558 #define EXTIGY_FIRMWARE_SIZE_NEW 483 559 560 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf) 561 { 562 struct usb_host_config *config = dev->actconfig; 563 int err; 564 565 if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD || 566 le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) { 567 dev_dbg(&dev->dev, "sending Extigy boot sequence...\n"); 568 /* Send message to force it to reconnect with full interface. */ 569 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0), 570 0x10, 0x43, 0x0001, 0x000a, NULL, 0); 571 if (err < 0) 572 dev_dbg(&dev->dev, "error sending boot message: %d\n", err); 573 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, 574 &dev->descriptor, sizeof(dev->descriptor)); 575 config = dev->actconfig; 576 if (err < 0) 577 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); 578 err = usb_reset_configuration(dev); 579 if (err < 0) 580 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); 581 dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n", 582 le16_to_cpu(get_cfg_desc(config)->wTotalLength)); 583 return -ENODEV; /* quit this anyway */ 584 } 585 return 0; 586 } 587 588 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev) 589 { 590 u8 buf = 1; 591 592 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a, 593 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, 594 0, 0, &buf, 1); 595 if (buf == 0) { 596 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29, 597 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, 598 1, 2000, NULL, 0); 599 return -ENODEV; 600 } 601 return 0; 602 } 603 604 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev) 605 { 606 int err; 607 608 if (dev->actconfig->desc.bConfigurationValue == 1) { 609 dev_info(&dev->dev, 610 "Fast Track Pro switching to config #2\n"); 611 /* This function has to be available by the usb core module. 612 * if it is not avialable the boot quirk has to be left out 613 * and the configuration has to be set by udev or hotplug 614 * rules 615 */ 616 err = usb_driver_set_configuration(dev, 2); 617 if (err < 0) 618 dev_dbg(&dev->dev, 619 "error usb_driver_set_configuration: %d\n", 620 err); 621 /* Always return an error, so that we stop creating a device 622 that will just be destroyed and recreated with a new 623 configuration */ 624 return -ENODEV; 625 } else 626 dev_info(&dev->dev, "Fast Track Pro config OK\n"); 627 628 return 0; 629 } 630 631 /* 632 * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely 633 * documented in the device's data sheet. 634 */ 635 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value) 636 { 637 u8 buf[4]; 638 buf[0] = 0x20; 639 buf[1] = value & 0xff; 640 buf[2] = (value >> 8) & 0xff; 641 buf[3] = reg; 642 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION, 643 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, 644 0, 0, &buf, 4); 645 } 646 647 static int snd_usb_cm106_boot_quirk(struct usb_device *dev) 648 { 649 /* 650 * Enable line-out driver mode, set headphone source to front 651 * channels, enable stereo mic. 652 */ 653 return snd_usb_cm106_write_int_reg(dev, 2, 0x8004); 654 } 655 656 /* 657 * C-Media CM6206 is based on CM106 with two additional 658 * registers that are not documented in the data sheet. 659 * Values here are chosen based on sniffing USB traffic 660 * under Windows. 661 */ 662 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev) 663 { 664 int err = 0, reg; 665 int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000}; 666 667 for (reg = 0; reg < ARRAY_SIZE(val); reg++) { 668 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]); 669 if (err < 0) 670 return err; 671 } 672 673 return err; 674 } 675 676 /* quirk for Plantronics GameCom 780 with CM6302 chip */ 677 static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev) 678 { 679 /* set the initial volume and don't change; other values are either 680 * too loud or silent due to firmware bug (bko#65251) 681 */ 682 u8 buf[2] = { 0x74, 0xe3 }; 683 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, 684 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, 685 UAC_FU_VOLUME << 8, 9 << 8, buf, 2); 686 } 687 688 /* 689 * Novation Twitch DJ controller 690 * Focusrite Novation Saffire 6 USB audio card 691 */ 692 static int snd_usb_novation_boot_quirk(struct usb_device *dev) 693 { 694 /* preemptively set up the device because otherwise the 695 * raw MIDI endpoints are not active */ 696 usb_set_interface(dev, 0, 1); 697 return 0; 698 } 699 700 /* 701 * This call will put the synth in "USB send" mode, i.e it will send MIDI 702 * messages through USB (this is disabled at startup). The synth will 703 * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB 704 * sign on its LCD. Values here are chosen based on sniffing USB traffic 705 * under Windows. 706 */ 707 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev) 708 { 709 int err, actual_length; 710 711 /* "midi send" enable */ 712 static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 }; 713 714 void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL); 715 if (!buf) 716 return -ENOMEM; 717 err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf, 718 ARRAY_SIZE(seq), &actual_length, 1000); 719 kfree(buf); 720 if (err < 0) 721 return err; 722 723 return 0; 724 } 725 726 /* 727 * Some sound cards from Native Instruments are in fact compliant to the USB 728 * audio standard of version 2 and other approved USB standards, even though 729 * they come up as vendor-specific device when first connected. 730 * 731 * However, they can be told to come up with a new set of descriptors 732 * upon their next enumeration, and the interfaces announced by the new 733 * descriptors will then be handled by the kernel's class drivers. As the 734 * product ID will also change, no further checks are required. 735 */ 736 737 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev) 738 { 739 int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 740 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE, 741 1, 0, NULL, 0, 1000); 742 743 if (ret < 0) 744 return ret; 745 746 usb_reset_device(dev); 747 748 /* return -EAGAIN, so the creation of an audio interface for this 749 * temporary device is aborted. The device will reconnect with a 750 * new product ID */ 751 return -EAGAIN; 752 } 753 754 static void mbox2_setup_48_24_magic(struct usb_device *dev) 755 { 756 u8 srate[3]; 757 u8 temp[12]; 758 759 /* Choose 48000Hz permanently */ 760 srate[0] = 0x80; 761 srate[1] = 0xbb; 762 srate[2] = 0x00; 763 764 /* Send the magic! */ 765 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 766 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003); 767 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 768 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003); 769 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 770 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003); 771 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 772 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003); 773 return; 774 } 775 776 /* Digidesign Mbox 2 needs to load firmware onboard 777 * and driver must wait a few seconds for initialisation. 778 */ 779 780 #define MBOX2_FIRMWARE_SIZE 646 781 #define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */ 782 #define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */ 783 784 static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) 785 { 786 struct usb_host_config *config = dev->actconfig; 787 int err; 788 u8 bootresponse[0x12]; 789 int fwsize; 790 int count; 791 792 fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength); 793 794 if (fwsize != MBOX2_FIRMWARE_SIZE) { 795 dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize); 796 return -ENODEV; 797 } 798 799 dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n"); 800 801 count = 0; 802 bootresponse[0] = MBOX2_BOOT_LOADING; 803 while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) { 804 msleep(500); /* 0.5 second delay */ 805 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 806 /* Control magic - load onboard firmware */ 807 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012); 808 if (bootresponse[0] == MBOX2_BOOT_READY) 809 break; 810 dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n"); 811 count++; 812 } 813 814 if (bootresponse[0] != MBOX2_BOOT_READY) { 815 dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]); 816 return -ENODEV; 817 } 818 819 dev_dbg(&dev->dev, "device initialised!\n"); 820 821 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, 822 &dev->descriptor, sizeof(dev->descriptor)); 823 config = dev->actconfig; 824 if (err < 0) 825 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); 826 827 err = usb_reset_configuration(dev); 828 if (err < 0) 829 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); 830 dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n", 831 le16_to_cpu(get_cfg_desc(config)->wTotalLength)); 832 833 mbox2_setup_48_24_magic(dev); 834 835 dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz"); 836 837 return 0; /* Successful boot */ 838 } 839 840 /* 841 * Setup quirks 842 */ 843 #define MAUDIO_SET 0x01 /* parse device_setup */ 844 #define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */ 845 #define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */ 846 #define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */ 847 #define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */ 848 #define MAUDIO_SET_DI 0x10 /* enable Digital Input */ 849 #define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */ 850 #define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */ 851 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */ 852 #define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */ 853 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */ 854 855 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip, 856 int iface, int altno) 857 { 858 /* Reset ALL ifaces to 0 altsetting. 859 * Call it for every possible altsetting of every interface. 860 */ 861 usb_set_interface(chip->dev, iface, 0); 862 if (chip->setup & MAUDIO_SET) { 863 if (chip->setup & MAUDIO_SET_COMPATIBLE) { 864 if (iface != 1 && iface != 2) 865 return 1; /* skip all interfaces but 1 and 2 */ 866 } else { 867 unsigned int mask; 868 if (iface == 1 || iface == 2) 869 return 1; /* skip interfaces 1 and 2 */ 870 if ((chip->setup & MAUDIO_SET_96K) && altno != 1) 871 return 1; /* skip this altsetting */ 872 mask = chip->setup & MAUDIO_SET_MASK; 873 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) 874 return 1; /* skip this altsetting */ 875 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) 876 return 1; /* skip this altsetting */ 877 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4) 878 return 1; /* skip this altsetting */ 879 } 880 } 881 usb_audio_dbg(chip, 882 "using altsetting %d for interface %d config %d\n", 883 altno, iface, chip->setup); 884 return 0; /* keep this altsetting */ 885 } 886 887 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip, 888 int iface, 889 int altno) 890 { 891 /* Reset ALL ifaces to 0 altsetting. 892 * Call it for every possible altsetting of every interface. 893 */ 894 usb_set_interface(chip->dev, iface, 0); 895 896 if (chip->setup & MAUDIO_SET) { 897 unsigned int mask; 898 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6) 899 return 1; /* skip this altsetting */ 900 if ((chip->setup & MAUDIO_SET_96K) && altno != 1) 901 return 1; /* skip this altsetting */ 902 mask = chip->setup & MAUDIO_SET_MASK; 903 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) 904 return 1; /* skip this altsetting */ 905 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) 906 return 1; /* skip this altsetting */ 907 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4) 908 return 1; /* skip this altsetting */ 909 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5) 910 return 1; /* skip this altsetting */ 911 } 912 913 return 0; /* keep this altsetting */ 914 } 915 916 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip, 917 int iface, int altno) 918 { 919 /* Reset ALL ifaces to 0 altsetting. 920 * Call it for every possible altsetting of every interface. 921 */ 922 usb_set_interface(chip->dev, iface, 0); 923 924 /* possible configuration where both inputs and only one output is 925 *used is not supported by the current setup 926 */ 927 if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) { 928 if (chip->setup & MAUDIO_SET_96K) { 929 if (altno != 3 && altno != 6) 930 return 1; 931 } else if (chip->setup & MAUDIO_SET_DI) { 932 if (iface == 4) 933 return 1; /* no analog input */ 934 if (altno != 2 && altno != 5) 935 return 1; /* enable only altsets 2 and 5 */ 936 } else { 937 if (iface == 5) 938 return 1; /* disable digialt input */ 939 if (altno != 2 && altno != 5) 940 return 1; /* enalbe only altsets 2 and 5 */ 941 } 942 } else { 943 /* keep only 16-Bit mode */ 944 if (altno != 1) 945 return 1; 946 } 947 948 usb_audio_dbg(chip, 949 "using altsetting %d for interface %d config %d\n", 950 altno, iface, chip->setup); 951 return 0; /* keep this altsetting */ 952 } 953 954 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip, 955 int iface, 956 int altno) 957 { 958 /* audiophile usb: skip altsets incompatible with device_setup */ 959 if (chip->usb_id == USB_ID(0x0763, 0x2003)) 960 return audiophile_skip_setting_quirk(chip, iface, altno); 961 /* quattro usb: skip altsets incompatible with device_setup */ 962 if (chip->usb_id == USB_ID(0x0763, 0x2001)) 963 return quattro_skip_setting_quirk(chip, iface, altno); 964 /* fasttrackpro usb: skip altsets incompatible with device_setup */ 965 if (chip->usb_id == USB_ID(0x0763, 0x2012)) 966 return fasttrackpro_skip_setting_quirk(chip, iface, altno); 967 968 return 0; 969 } 970 971 int snd_usb_apply_boot_quirk(struct usb_device *dev, 972 struct usb_interface *intf, 973 const struct snd_usb_audio_quirk *quirk) 974 { 975 u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), 976 le16_to_cpu(dev->descriptor.idProduct)); 977 978 switch (id) { 979 case USB_ID(0x041e, 0x3000): 980 /* SB Extigy needs special boot-up sequence */ 981 /* if more models come, this will go to the quirk list. */ 982 return snd_usb_extigy_boot_quirk(dev, intf); 983 984 case USB_ID(0x041e, 0x3020): 985 /* SB Audigy 2 NX needs its own boot-up magic, too */ 986 return snd_usb_audigy2nx_boot_quirk(dev); 987 988 case USB_ID(0x10f5, 0x0200): 989 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */ 990 return snd_usb_cm106_boot_quirk(dev); 991 992 case USB_ID(0x0d8c, 0x0102): 993 /* C-Media CM6206 / CM106-Like Sound Device */ 994 case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */ 995 return snd_usb_cm6206_boot_quirk(dev); 996 997 case USB_ID(0x0dba, 0x3000): 998 /* Digidesign Mbox 2 */ 999 return snd_usb_mbox2_boot_quirk(dev); 1000 1001 case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */ 1002 case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */ 1003 return snd_usb_novation_boot_quirk(dev); 1004 1005 case USB_ID(0x133e, 0x0815): 1006 /* Access Music VirusTI Desktop */ 1007 return snd_usb_accessmusic_boot_quirk(dev); 1008 1009 case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */ 1010 case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */ 1011 case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */ 1012 return snd_usb_nativeinstruments_boot_quirk(dev); 1013 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */ 1014 return snd_usb_fasttrackpro_boot_quirk(dev); 1015 case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */ 1016 return snd_usb_gamecon780_boot_quirk(dev); 1017 } 1018 1019 return 0; 1020 } 1021 1022 /* 1023 * check if the device uses big-endian samples 1024 */ 1025 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp) 1026 { 1027 /* it depends on altsetting whether the device is big-endian or not */ 1028 switch (chip->usb_id) { 1029 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */ 1030 if (fp->altsetting == 2 || fp->altsetting == 3 || 1031 fp->altsetting == 5 || fp->altsetting == 6) 1032 return 1; 1033 break; 1034 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ 1035 if (chip->setup == 0x00 || 1036 fp->altsetting == 1 || fp->altsetting == 2 || 1037 fp->altsetting == 3) 1038 return 1; 1039 break; 1040 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */ 1041 if (fp->altsetting == 2 || fp->altsetting == 3 || 1042 fp->altsetting == 5 || fp->altsetting == 6) 1043 return 1; 1044 break; 1045 } 1046 return 0; 1047 } 1048 1049 /* 1050 * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device, 1051 * not for interface. 1052 */ 1053 1054 enum { 1055 EMU_QUIRK_SR_44100HZ = 0, 1056 EMU_QUIRK_SR_48000HZ, 1057 EMU_QUIRK_SR_88200HZ, 1058 EMU_QUIRK_SR_96000HZ, 1059 EMU_QUIRK_SR_176400HZ, 1060 EMU_QUIRK_SR_192000HZ 1061 }; 1062 1063 static void set_format_emu_quirk(struct snd_usb_substream *subs, 1064 struct audioformat *fmt) 1065 { 1066 unsigned char emu_samplerate_id = 0; 1067 1068 /* When capture is active 1069 * sample rate shouldn't be changed 1070 * by playback substream 1071 */ 1072 if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { 1073 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1) 1074 return; 1075 } 1076 1077 switch (fmt->rate_min) { 1078 case 48000: 1079 emu_samplerate_id = EMU_QUIRK_SR_48000HZ; 1080 break; 1081 case 88200: 1082 emu_samplerate_id = EMU_QUIRK_SR_88200HZ; 1083 break; 1084 case 96000: 1085 emu_samplerate_id = EMU_QUIRK_SR_96000HZ; 1086 break; 1087 case 176400: 1088 emu_samplerate_id = EMU_QUIRK_SR_176400HZ; 1089 break; 1090 case 192000: 1091 emu_samplerate_id = EMU_QUIRK_SR_192000HZ; 1092 break; 1093 default: 1094 emu_samplerate_id = EMU_QUIRK_SR_44100HZ; 1095 break; 1096 } 1097 snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id); 1098 subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0; 1099 } 1100 1101 void snd_usb_set_format_quirk(struct snd_usb_substream *subs, 1102 struct audioformat *fmt) 1103 { 1104 switch (subs->stream->chip->usb_id) { 1105 case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ 1106 case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ 1107 case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */ 1108 case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */ 1109 set_format_emu_quirk(subs, fmt); 1110 break; 1111 } 1112 } 1113 1114 bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip) 1115 { 1116 /* devices which do not support reading the sample rate. */ 1117 switch (chip->usb_id) { 1118 case USB_ID(0x045E, 0x075D): /* MS Lifecam Cinema */ 1119 case USB_ID(0x045E, 0x076D): /* MS Lifecam HD-5000 */ 1120 case USB_ID(0x045E, 0x0772): /* MS Lifecam Studio */ 1121 case USB_ID(0x045E, 0x0779): /* MS Lifecam HD-3000 */ 1122 case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */ 1123 case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */ 1124 return true; 1125 } 1126 return false; 1127 } 1128 1129 /* Marantz/Denon USB DACs need a vendor cmd to switch 1130 * between PCM and native DSD mode 1131 */ 1132 static bool is_marantz_denon_dac(unsigned int id) 1133 { 1134 switch (id) { 1135 case USB_ID(0x154e, 0x1003): /* Denon DA-300USB */ 1136 case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */ 1137 case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */ 1138 return true; 1139 } 1140 return false; 1141 } 1142 1143 int snd_usb_select_mode_quirk(struct snd_usb_substream *subs, 1144 struct audioformat *fmt) 1145 { 1146 struct usb_device *dev = subs->dev; 1147 int err; 1148 1149 if (is_marantz_denon_dac(subs->stream->chip->usb_id)) { 1150 /* First switch to alt set 0, otherwise the mode switch cmd 1151 * will not be accepted by the DAC 1152 */ 1153 err = usb_set_interface(dev, fmt->iface, 0); 1154 if (err < 0) 1155 return err; 1156 1157 mdelay(20); /* Delay needed after setting the interface */ 1158 1159 switch (fmt->altsetting) { 1160 case 2: /* DSD mode requested */ 1161 case 1: /* PCM mode requested */ 1162 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0, 1163 USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, 1164 fmt->altsetting - 1, 1, NULL, 0); 1165 if (err < 0) 1166 return err; 1167 break; 1168 } 1169 mdelay(20); 1170 } 1171 return 0; 1172 } 1173 1174 void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep) 1175 { 1176 /* 1177 * "Playback Design" products send bogus feedback data at the start 1178 * of the stream. Ignore them. 1179 */ 1180 if ((le16_to_cpu(ep->chip->dev->descriptor.idVendor) == 0x23ba) && 1181 ep->type == SND_USB_ENDPOINT_TYPE_SYNC) 1182 ep->skip_packets = 4; 1183 1184 /* 1185 * M-Audio Fast Track C400/C600 - when packets are not skipped, real 1186 * world latency varies by approx. +/- 50 frames (at 96KHz) each time 1187 * the stream is (re)started. When skipping packets 16 at endpoint 1188 * start up, the real world latency is stable within +/- 1 frame (also 1189 * across power cycles). 1190 */ 1191 if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) || 1192 ep->chip->usb_id == USB_ID(0x0763, 0x2031)) && 1193 ep->type == SND_USB_ENDPOINT_TYPE_DATA) 1194 ep->skip_packets = 16; 1195 } 1196 1197 void snd_usb_set_interface_quirk(struct usb_device *dev) 1198 { 1199 /* 1200 * "Playback Design" products need a 50ms delay after setting the 1201 * USB interface. 1202 */ 1203 if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) 1204 mdelay(50); 1205 } 1206 1207 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, 1208 __u8 request, __u8 requesttype, __u16 value, 1209 __u16 index, void *data, __u16 size) 1210 { 1211 /* 1212 * "Playback Design" products need a 20ms delay after each 1213 * class compliant request 1214 */ 1215 if ((le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) && 1216 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) 1217 mdelay(20); 1218 1219 /* Marantz/Denon devices with USB DAC functionality need a delay 1220 * after each class compliant request 1221 */ 1222 if (is_marantz_denon_dac(USB_ID(le16_to_cpu(dev->descriptor.idVendor), 1223 le16_to_cpu(dev->descriptor.idProduct))) 1224 && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) 1225 mdelay(20); 1226 1227 /* Zoom R16/24 needs a tiny delay here, otherwise requests like 1228 * get/set frequency return as failed despite actually succeeding. 1229 */ 1230 if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1686) && 1231 (le16_to_cpu(dev->descriptor.idProduct) == 0x00dd) && 1232 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) 1233 mdelay(1); 1234 } 1235 1236 /* 1237 * snd_usb_interface_dsd_format_quirks() is called from format.c to 1238 * augment the PCM format bit-field for DSD types. The UAC standards 1239 * don't have a designated bit field to denote DSD-capable interfaces, 1240 * hence all hardware that is known to support this format has to be 1241 * listed here. 1242 */ 1243 u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip, 1244 struct audioformat *fp, 1245 unsigned int sample_bytes) 1246 { 1247 /* Playback Designs */ 1248 if (le16_to_cpu(chip->dev->descriptor.idVendor) == 0x23ba) { 1249 switch (fp->altsetting) { 1250 case 1: 1251 fp->dsd_dop = true; 1252 return SNDRV_PCM_FMTBIT_DSD_U16_LE; 1253 case 2: 1254 fp->dsd_bitrev = true; 1255 return SNDRV_PCM_FMTBIT_DSD_U8; 1256 case 3: 1257 fp->dsd_bitrev = true; 1258 return SNDRV_PCM_FMTBIT_DSD_U16_LE; 1259 } 1260 } 1261 1262 /* XMOS based USB DACs */ 1263 switch (chip->usb_id) { 1264 case USB_ID(0x20b1, 0x3008): /* iFi Audio micro/nano iDSD */ 1265 case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */ 1266 case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */ 1267 if (fp->altsetting == 2) 1268 return SNDRV_PCM_FMTBIT_DSD_U32_BE; 1269 break; 1270 1271 case USB_ID(0x20b1, 0x000a): /* Gustard DAC-X20U */ 1272 case USB_ID(0x20b1, 0x2009): /* DIYINHK DSD DXD 384kHz USB to I2S/DSD */ 1273 case USB_ID(0x20b1, 0x2023): /* JLsounds I2SoverUSB */ 1274 if (fp->altsetting == 3) 1275 return SNDRV_PCM_FMTBIT_DSD_U32_BE; 1276 break; 1277 default: 1278 break; 1279 } 1280 1281 /* Denon/Marantz devices with USB DAC functionality */ 1282 if (is_marantz_denon_dac(chip->usb_id)) { 1283 if (fp->altsetting == 2) 1284 return SNDRV_PCM_FMTBIT_DSD_U32_BE; 1285 } 1286 1287 return 0; 1288 } 1289