cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
[linux/fpc-iii.git] / sound / usb / quirks.c
blob8a945ece98690d96b580da4121657c60a0d9b118
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.
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.
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
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>
23 #include <sound/control.h>
24 #include <sound/core.h>
25 #include <sound/info.h>
26 #include <sound/pcm.h>
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"
41 * handle the quirks for the contained interfaces
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)
48 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
49 const struct snd_usb_audio_quirk *quirk;
50 int err;
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;
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);
73 return 0;
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)
81 return 0;
86 * Allow alignment on audio sub-slot (channel samples) rather than
87 * on audio slots (audio frames)
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)
94 chip->txfr_quirk = 1;
95 return 1; /* Continue with creating streams and mixer */
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)
103 return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
107 * create a stream for an interface with proper descriptors
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)
114 struct usb_host_interface *alts;
115 struct usb_interface_descriptor *altsd;
116 int err;
118 if (chip->usb_id == USB_ID(0x1686, 0x00dd)) /* Zoom R16/24 */
119 chip->tx_length_quirk = 1;
121 alts = &iface->altsetting[0];
122 altsd = get_iface_desc(alts);
123 err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
124 if (err < 0) {
125 usb_audio_err(chip, "cannot setup if %d: error %d\n",
126 altsd->bInterfaceNumber, err);
127 return err;
129 /* reset the current interface */
130 usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
131 return 0;
135 * create a stream for an endpoint/altsetting without proper descriptors
137 static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
138 struct usb_interface *iface,
139 struct usb_driver *driver,
140 const struct snd_usb_audio_quirk *quirk)
142 struct audioformat *fp;
143 struct usb_host_interface *alts;
144 struct usb_interface_descriptor *altsd;
145 int stream, err;
146 unsigned *rate_table = NULL;
148 fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
149 if (!fp)
150 return -ENOMEM;
152 INIT_LIST_HEAD(&fp->list);
153 if (fp->nr_rates > MAX_NR_RATES) {
154 kfree(fp);
155 return -EINVAL;
157 if (fp->nr_rates > 0) {
158 rate_table = kmemdup(fp->rate_table,
159 sizeof(int) * fp->nr_rates, GFP_KERNEL);
160 if (!rate_table) {
161 kfree(fp);
162 return -ENOMEM;
164 fp->rate_table = rate_table;
167 stream = (fp->endpoint & USB_DIR_IN)
168 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
169 err = snd_usb_add_audio_stream(chip, stream, fp);
170 if (err < 0)
171 goto error;
172 if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
173 fp->altset_idx >= iface->num_altsetting) {
174 err = -EINVAL;
175 goto error;
177 alts = &iface->altsetting[fp->altset_idx];
178 altsd = get_iface_desc(alts);
179 if (altsd->bNumEndpoints < 1) {
180 err = -EINVAL;
181 goto error;
184 fp->protocol = altsd->bInterfaceProtocol;
186 if (fp->datainterval == 0)
187 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
188 if (fp->maxpacksize == 0)
189 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
190 usb_set_interface(chip->dev, fp->iface, 0);
191 snd_usb_init_pitch(chip, fp->iface, alts, fp);
192 snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
193 return 0;
195 error:
196 list_del(&fp->list); /* unlink for avoiding double-free */
197 kfree(fp);
198 kfree(rate_table);
199 return err;
202 static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
203 struct usb_interface *iface,
204 struct usb_driver *driver)
206 struct usb_host_interface *alts;
207 struct usb_interface_descriptor *altsd;
208 struct usb_endpoint_descriptor *epd;
209 struct uac1_as_header_descriptor *ashd;
210 struct uac_format_type_i_discrete_descriptor *fmtd;
213 * Most Roland/Yamaha audio streaming interfaces have more or less
214 * standard descriptors, but older devices might lack descriptors, and
215 * future ones might change, so ensure that we fail silently if the
216 * interface doesn't look exactly right.
219 /* must have a non-zero altsetting for streaming */
220 if (iface->num_altsetting < 2)
221 return -ENODEV;
222 alts = &iface->altsetting[1];
223 altsd = get_iface_desc(alts);
225 /* must have an isochronous endpoint for streaming */
226 if (altsd->bNumEndpoints < 1)
227 return -ENODEV;
228 epd = get_endpoint(alts, 0);
229 if (!usb_endpoint_xfer_isoc(epd))
230 return -ENODEV;
232 /* must have format descriptors */
233 ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
234 UAC_AS_GENERAL);
235 fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
236 UAC_FORMAT_TYPE);
237 if (!ashd || ashd->bLength < 7 ||
238 !fmtd || fmtd->bLength < 8)
239 return -ENODEV;
241 return create_standard_audio_quirk(chip, iface, driver, NULL);
244 static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
245 struct usb_interface *iface,
246 struct usb_driver *driver,
247 struct usb_host_interface *alts)
249 static const struct snd_usb_audio_quirk yamaha_midi_quirk = {
250 .type = QUIRK_MIDI_YAMAHA
252 struct usb_midi_in_jack_descriptor *injd;
253 struct usb_midi_out_jack_descriptor *outjd;
255 /* must have some valid jack descriptors */
256 injd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
257 NULL, USB_MS_MIDI_IN_JACK);
258 outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
259 NULL, USB_MS_MIDI_OUT_JACK);
260 if (!injd && !outjd)
261 return -ENODEV;
262 if (injd && (injd->bLength < 5 ||
263 (injd->bJackType != USB_MS_EMBEDDED &&
264 injd->bJackType != USB_MS_EXTERNAL)))
265 return -ENODEV;
266 if (outjd && (outjd->bLength < 6 ||
267 (outjd->bJackType != USB_MS_EMBEDDED &&
268 outjd->bJackType != USB_MS_EXTERNAL)))
269 return -ENODEV;
270 return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk);
273 static int create_roland_midi_quirk(struct snd_usb_audio *chip,
274 struct usb_interface *iface,
275 struct usb_driver *driver,
276 struct usb_host_interface *alts)
278 static const struct snd_usb_audio_quirk roland_midi_quirk = {
279 .type = QUIRK_MIDI_ROLAND
281 u8 *roland_desc = NULL;
283 /* might have a vendor-specific descriptor <06 24 F1 02 ...> */
284 for (;;) {
285 roland_desc = snd_usb_find_csint_desc(alts->extra,
286 alts->extralen,
287 roland_desc, 0xf1);
288 if (!roland_desc)
289 return -ENODEV;
290 if (roland_desc[0] < 6 || roland_desc[3] != 2)
291 continue;
292 return create_any_midi_quirk(chip, iface, driver,
293 &roland_midi_quirk);
297 static int create_std_midi_quirk(struct snd_usb_audio *chip,
298 struct usb_interface *iface,
299 struct usb_driver *driver,
300 struct usb_host_interface *alts)
302 struct usb_ms_header_descriptor *mshd;
303 struct usb_ms_endpoint_descriptor *msepd;
305 /* must have the MIDIStreaming interface header descriptor*/
306 mshd = (struct usb_ms_header_descriptor *)alts->extra;
307 if (alts->extralen < 7 ||
308 mshd->bLength < 7 ||
309 mshd->bDescriptorType != USB_DT_CS_INTERFACE ||
310 mshd->bDescriptorSubtype != USB_MS_HEADER)
311 return -ENODEV;
312 /* must have the MIDIStreaming endpoint descriptor*/
313 msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra;
314 if (alts->endpoint[0].extralen < 4 ||
315 msepd->bLength < 4 ||
316 msepd->bDescriptorType != USB_DT_CS_ENDPOINT ||
317 msepd->bDescriptorSubtype != UAC_MS_GENERAL ||
318 msepd->bNumEmbMIDIJack < 1 ||
319 msepd->bNumEmbMIDIJack > 16)
320 return -ENODEV;
322 return create_any_midi_quirk(chip, iface, driver, NULL);
325 static int create_auto_midi_quirk(struct snd_usb_audio *chip,
326 struct usb_interface *iface,
327 struct usb_driver *driver)
329 struct usb_host_interface *alts;
330 struct usb_interface_descriptor *altsd;
331 struct usb_endpoint_descriptor *epd;
332 int err;
334 alts = &iface->altsetting[0];
335 altsd = get_iface_desc(alts);
337 /* must have at least one bulk/interrupt endpoint for streaming */
338 if (altsd->bNumEndpoints < 1)
339 return -ENODEV;
340 epd = get_endpoint(alts, 0);
341 if (!usb_endpoint_xfer_bulk(epd) &&
342 !usb_endpoint_xfer_int(epd))
343 return -ENODEV;
345 switch (USB_ID_VENDOR(chip->usb_id)) {
346 case 0x0499: /* Yamaha */
347 err = create_yamaha_midi_quirk(chip, iface, driver, alts);
348 if (err != -ENODEV)
349 return err;
350 break;
351 case 0x0582: /* Roland */
352 err = create_roland_midi_quirk(chip, iface, driver, alts);
353 if (err != -ENODEV)
354 return err;
355 break;
358 return create_std_midi_quirk(chip, iface, driver, alts);
361 static int create_autodetect_quirk(struct snd_usb_audio *chip,
362 struct usb_interface *iface,
363 struct usb_driver *driver)
365 int err;
367 err = create_auto_pcm_quirk(chip, iface, driver);
368 if (err == -ENODEV)
369 err = create_auto_midi_quirk(chip, iface, driver);
370 return err;
373 static int create_autodetect_quirks(struct snd_usb_audio *chip,
374 struct usb_interface *iface,
375 struct usb_driver *driver,
376 const struct snd_usb_audio_quirk *quirk)
378 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
379 int ifcount, ifnum, err;
381 err = create_autodetect_quirk(chip, iface, driver);
382 if (err < 0)
383 return err;
386 * ALSA PCM playback/capture devices cannot be registered in two steps,
387 * so we have to claim the other corresponding interface here.
389 ifcount = chip->dev->actconfig->desc.bNumInterfaces;
390 for (ifnum = 0; ifnum < ifcount; ifnum++) {
391 if (ifnum == probed_ifnum || quirk->ifnum >= 0)
392 continue;
393 iface = usb_ifnum_to_if(chip->dev, ifnum);
394 if (!iface ||
395 usb_interface_claimed(iface) ||
396 get_iface_desc(iface->altsetting)->bInterfaceClass !=
397 USB_CLASS_VENDOR_SPEC)
398 continue;
400 err = create_autodetect_quirk(chip, iface, driver);
401 if (err >= 0)
402 usb_driver_claim_interface(driver, iface, (void *)-1L);
405 return 0;
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.
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)
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,
425 struct usb_host_interface *alts;
426 struct usb_interface_descriptor *altsd;
427 struct audioformat *fp;
428 int stream, err;
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);
436 if (altsd->bNumEndpoints == 2) {
437 static const struct snd_usb_midi_endpoint_info ua700_ep = {
438 .out_cables = 0x0003,
439 .in_cables = 0x0003
441 static const struct snd_usb_audio_quirk ua700_quirk = {
442 .type = QUIRK_MIDI_FIXED_ENDPOINT,
443 .data = &ua700_ep
445 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
446 .out_cables = 0x0001,
447 .in_cables = 0x0001
449 static const struct snd_usb_audio_quirk uaxx_quirk = {
450 .type = QUIRK_MIDI_FIXED_ENDPOINT,
451 .data = &uaxx_ep
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);
461 if (altsd->bNumEndpoints != 1)
462 return -ENXIO;
464 fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
465 if (!fp)
466 return -ENOMEM;
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);
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;
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;
501 usb_set_interface(chip->dev, fp->iface, 0);
502 return 0;
506 * Create a standard mixer for the specified interface.
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)
513 if (quirk->ifnum < 0)
514 return 0;
516 return snd_usb_create_mixer(chip, quirk->ifnum, 0);
520 * audio-interface quirks
522 * returns zero if no standard audio/MIDI parsing is needed.
523 * returns a positive value if standard audio/midi interfaces are parsed
524 * after this.
525 * returns a negative value at error.
527 int snd_usb_create_quirk(struct snd_usb_audio *chip,
528 struct usb_interface *iface,
529 struct usb_driver *driver,
530 const struct snd_usb_audio_quirk *quirk)
532 typedef int (*quirk_func_t)(struct snd_usb_audio *,
533 struct usb_interface *,
534 struct usb_driver *,
535 const struct snd_usb_audio_quirk *);
536 static const quirk_func_t quirk_funcs[] = {
537 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
538 [QUIRK_COMPOSITE] = create_composite_quirk,
539 [QUIRK_AUTODETECT] = create_autodetect_quirks,
540 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
541 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
542 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
543 [QUIRK_MIDI_ROLAND] = create_any_midi_quirk,
544 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
545 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
546 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
547 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
548 [QUIRK_MIDI_CME] = create_any_midi_quirk,
549 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
550 [QUIRK_MIDI_FTDI] = create_any_midi_quirk,
551 [QUIRK_MIDI_CH345] = create_any_midi_quirk,
552 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
553 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
554 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
555 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
556 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
559 if (quirk->type < QUIRK_TYPE_COUNT) {
560 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
561 } else {
562 usb_audio_err(chip, "invalid quirk type %d\n", quirk->type);
563 return -ENXIO;
568 * boot quirks
571 #define EXTIGY_FIRMWARE_SIZE_OLD 794
572 #define EXTIGY_FIRMWARE_SIZE_NEW 483
574 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
576 struct usb_host_config *config = dev->actconfig;
577 int err;
579 if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
580 le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
581 dev_dbg(&dev->dev, "sending Extigy boot sequence...\n");
582 /* Send message to force it to reconnect with full interface. */
583 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
584 0x10, 0x43, 0x0001, 0x000a, NULL, 0);
585 if (err < 0)
586 dev_dbg(&dev->dev, "error sending boot message: %d\n", err);
587 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
588 &dev->descriptor, sizeof(dev->descriptor));
589 config = dev->actconfig;
590 if (err < 0)
591 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
592 err = usb_reset_configuration(dev);
593 if (err < 0)
594 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
595 dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n",
596 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
597 return -ENODEV; /* quit this anyway */
599 return 0;
602 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
604 u8 buf = 1;
606 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
607 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
608 0, 0, &buf, 1);
609 if (buf == 0) {
610 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
611 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
612 1, 2000, NULL, 0);
613 return -ENODEV;
615 return 0;
618 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
620 int err;
622 if (dev->actconfig->desc.bConfigurationValue == 1) {
623 dev_info(&dev->dev,
624 "Fast Track Pro switching to config #2\n");
625 /* This function has to be available by the usb core module.
626 * if it is not avialable the boot quirk has to be left out
627 * and the configuration has to be set by udev or hotplug
628 * rules
630 err = usb_driver_set_configuration(dev, 2);
631 if (err < 0)
632 dev_dbg(&dev->dev,
633 "error usb_driver_set_configuration: %d\n",
634 err);
635 /* Always return an error, so that we stop creating a device
636 that will just be destroyed and recreated with a new
637 configuration */
638 return -ENODEV;
639 } else
640 dev_info(&dev->dev, "Fast Track Pro config OK\n");
642 return 0;
646 * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
647 * documented in the device's data sheet.
649 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
651 u8 buf[4];
652 buf[0] = 0x20;
653 buf[1] = value & 0xff;
654 buf[2] = (value >> 8) & 0xff;
655 buf[3] = reg;
656 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
657 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
658 0, 0, &buf, 4);
661 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
664 * Enable line-out driver mode, set headphone source to front
665 * channels, enable stereo mic.
667 return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
671 * C-Media CM6206 is based on CM106 with two additional
672 * registers that are not documented in the data sheet.
673 * Values here are chosen based on sniffing USB traffic
674 * under Windows.
676 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
678 int err = 0, reg;
679 int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
681 for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
682 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
683 if (err < 0)
684 return err;
687 return err;
690 /* quirk for Plantronics GameCom 780 with CM6302 chip */
691 static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
693 /* set the initial volume and don't change; other values are either
694 * too loud or silent due to firmware bug (bko#65251)
696 u8 buf[2] = { 0x74, 0xe3 };
697 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
698 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
699 UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
703 * Novation Twitch DJ controller
704 * Focusrite Novation Saffire 6 USB audio card
706 static int snd_usb_novation_boot_quirk(struct usb_device *dev)
708 /* preemptively set up the device because otherwise the
709 * raw MIDI endpoints are not active */
710 usb_set_interface(dev, 0, 1);
711 return 0;
715 * This call will put the synth in "USB send" mode, i.e it will send MIDI
716 * messages through USB (this is disabled at startup). The synth will
717 * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
718 * sign on its LCD. Values here are chosen based on sniffing USB traffic
719 * under Windows.
721 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
723 int err, actual_length;
725 /* "midi send" enable */
726 static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
728 void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
729 if (!buf)
730 return -ENOMEM;
731 err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
732 ARRAY_SIZE(seq), &actual_length, 1000);
733 kfree(buf);
734 if (err < 0)
735 return err;
737 return 0;
741 * Some sound cards from Native Instruments are in fact compliant to the USB
742 * audio standard of version 2 and other approved USB standards, even though
743 * they come up as vendor-specific device when first connected.
745 * However, they can be told to come up with a new set of descriptors
746 * upon their next enumeration, and the interfaces announced by the new
747 * descriptors will then be handled by the kernel's class drivers. As the
748 * product ID will also change, no further checks are required.
751 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
753 int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
754 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
755 1, 0, NULL, 0, 1000);
757 if (ret < 0)
758 return ret;
760 usb_reset_device(dev);
762 /* return -EAGAIN, so the creation of an audio interface for this
763 * temporary device is aborted. The device will reconnect with a
764 * new product ID */
765 return -EAGAIN;
768 static void mbox2_setup_48_24_magic(struct usb_device *dev)
770 u8 srate[3];
771 u8 temp[12];
773 /* Choose 48000Hz permanently */
774 srate[0] = 0x80;
775 srate[1] = 0xbb;
776 srate[2] = 0x00;
778 /* Send the magic! */
779 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
780 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
781 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
782 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
783 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
784 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
785 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
786 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
787 return;
790 /* Digidesign Mbox 2 needs to load firmware onboard
791 * and driver must wait a few seconds for initialisation.
794 #define MBOX2_FIRMWARE_SIZE 646
795 #define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */
796 #define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */
798 static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
800 struct usb_host_config *config = dev->actconfig;
801 int err;
802 u8 bootresponse[0x12];
803 int fwsize;
804 int count;
806 fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
808 if (fwsize != MBOX2_FIRMWARE_SIZE) {
809 dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize);
810 return -ENODEV;
813 dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n");
815 count = 0;
816 bootresponse[0] = MBOX2_BOOT_LOADING;
817 while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
818 msleep(500); /* 0.5 second delay */
819 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
820 /* Control magic - load onboard firmware */
821 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
822 if (bootresponse[0] == MBOX2_BOOT_READY)
823 break;
824 dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n");
825 count++;
828 if (bootresponse[0] != MBOX2_BOOT_READY) {
829 dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
830 return -ENODEV;
833 dev_dbg(&dev->dev, "device initialised!\n");
835 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
836 &dev->descriptor, sizeof(dev->descriptor));
837 config = dev->actconfig;
838 if (err < 0)
839 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
841 err = usb_reset_configuration(dev);
842 if (err < 0)
843 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
844 dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n",
845 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
847 mbox2_setup_48_24_magic(dev);
849 dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz");
851 return 0; /* Successful boot */
854 static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)
856 int err;
858 dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n");
860 /* If the Axe-Fx III has not fully booted, it will timeout when trying
861 * to enable the audio streaming interface. A more generous timeout is
862 * used here to detect when the Axe-Fx III has finished booting as the
863 * set interface message will be acked once it has
865 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
866 USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,
867 1, 1, NULL, 0, 120000);
868 if (err < 0) {
869 dev_err(&dev->dev,
870 "failed waiting for Axe-Fx III to boot: %d\n", err);
871 return err;
874 dev_dbg(&dev->dev, "Axe-Fx III is now ready\n");
876 err = usb_set_interface(dev, 1, 0);
877 if (err < 0)
878 dev_dbg(&dev->dev,
879 "error stopping Axe-Fx III interface: %d\n", err);
881 return 0;
885 * Setup quirks
887 #define MAUDIO_SET 0x01 /* parse device_setup */
888 #define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */
889 #define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */
890 #define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
891 #define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */
892 #define MAUDIO_SET_DI 0x10 /* enable Digital Input */
893 #define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */
894 #define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */
895 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
896 #define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */
897 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
899 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
900 int iface, int altno)
902 /* Reset ALL ifaces to 0 altsetting.
903 * Call it for every possible altsetting of every interface.
905 usb_set_interface(chip->dev, iface, 0);
906 if (chip->setup & MAUDIO_SET) {
907 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
908 if (iface != 1 && iface != 2)
909 return 1; /* skip all interfaces but 1 and 2 */
910 } else {
911 unsigned int mask;
912 if (iface == 1 || iface == 2)
913 return 1; /* skip interfaces 1 and 2 */
914 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
915 return 1; /* skip this altsetting */
916 mask = chip->setup & MAUDIO_SET_MASK;
917 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
918 return 1; /* skip this altsetting */
919 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
920 return 1; /* skip this altsetting */
921 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
922 return 1; /* skip this altsetting */
925 usb_audio_dbg(chip,
926 "using altsetting %d for interface %d config %d\n",
927 altno, iface, chip->setup);
928 return 0; /* keep this altsetting */
931 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
932 int iface,
933 int altno)
935 /* Reset ALL ifaces to 0 altsetting.
936 * Call it for every possible altsetting of every interface.
938 usb_set_interface(chip->dev, iface, 0);
940 if (chip->setup & MAUDIO_SET) {
941 unsigned int mask;
942 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
943 return 1; /* skip this altsetting */
944 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
945 return 1; /* skip this altsetting */
946 mask = chip->setup & MAUDIO_SET_MASK;
947 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
948 return 1; /* skip this altsetting */
949 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
950 return 1; /* skip this altsetting */
951 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
952 return 1; /* skip this altsetting */
953 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
954 return 1; /* skip this altsetting */
957 return 0; /* keep this altsetting */
960 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
961 int iface, int altno)
963 /* Reset ALL ifaces to 0 altsetting.
964 * Call it for every possible altsetting of every interface.
966 usb_set_interface(chip->dev, iface, 0);
968 /* possible configuration where both inputs and only one output is
969 *used is not supported by the current setup
971 if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
972 if (chip->setup & MAUDIO_SET_96K) {
973 if (altno != 3 && altno != 6)
974 return 1;
975 } else if (chip->setup & MAUDIO_SET_DI) {
976 if (iface == 4)
977 return 1; /* no analog input */
978 if (altno != 2 && altno != 5)
979 return 1; /* enable only altsets 2 and 5 */
980 } else {
981 if (iface == 5)
982 return 1; /* disable digialt input */
983 if (altno != 2 && altno != 5)
984 return 1; /* enalbe only altsets 2 and 5 */
986 } else {
987 /* keep only 16-Bit mode */
988 if (altno != 1)
989 return 1;
992 usb_audio_dbg(chip,
993 "using altsetting %d for interface %d config %d\n",
994 altno, iface, chip->setup);
995 return 0; /* keep this altsetting */
998 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
999 int iface,
1000 int altno)
1002 /* audiophile usb: skip altsets incompatible with device_setup */
1003 if (chip->usb_id == USB_ID(0x0763, 0x2003))
1004 return audiophile_skip_setting_quirk(chip, iface, altno);
1005 /* quattro usb: skip altsets incompatible with device_setup */
1006 if (chip->usb_id == USB_ID(0x0763, 0x2001))
1007 return quattro_skip_setting_quirk(chip, iface, altno);
1008 /* fasttrackpro usb: skip altsets incompatible with device_setup */
1009 if (chip->usb_id == USB_ID(0x0763, 0x2012))
1010 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
1012 return 0;
1015 int snd_usb_apply_boot_quirk(struct usb_device *dev,
1016 struct usb_interface *intf,
1017 const struct snd_usb_audio_quirk *quirk,
1018 unsigned int id)
1020 switch (id) {
1021 case USB_ID(0x041e, 0x3000):
1022 /* SB Extigy needs special boot-up sequence */
1023 /* if more models come, this will go to the quirk list. */
1024 return snd_usb_extigy_boot_quirk(dev, intf);
1026 case USB_ID(0x041e, 0x3020):
1027 /* SB Audigy 2 NX needs its own boot-up magic, too */
1028 return snd_usb_audigy2nx_boot_quirk(dev);
1030 case USB_ID(0x10f5, 0x0200):
1031 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
1032 return snd_usb_cm106_boot_quirk(dev);
1034 case USB_ID(0x0d8c, 0x0102):
1035 /* C-Media CM6206 / CM106-Like Sound Device */
1036 case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
1037 return snd_usb_cm6206_boot_quirk(dev);
1039 case USB_ID(0x0dba, 0x3000):
1040 /* Digidesign Mbox 2 */
1041 return snd_usb_mbox2_boot_quirk(dev);
1043 case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
1044 case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
1045 return snd_usb_novation_boot_quirk(dev);
1047 case USB_ID(0x133e, 0x0815):
1048 /* Access Music VirusTI Desktop */
1049 return snd_usb_accessmusic_boot_quirk(dev);
1051 case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
1052 case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
1053 case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
1054 return snd_usb_nativeinstruments_boot_quirk(dev);
1055 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
1056 return snd_usb_fasttrackpro_boot_quirk(dev);
1057 case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
1058 return snd_usb_gamecon780_boot_quirk(dev);
1059 case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */
1060 return snd_usb_axefx3_boot_quirk(dev);
1063 return 0;
1067 * check if the device uses big-endian samples
1069 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
1071 /* it depends on altsetting whether the device is big-endian or not */
1072 switch (chip->usb_id) {
1073 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
1074 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1075 fp->altsetting == 5 || fp->altsetting == 6)
1076 return 1;
1077 break;
1078 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1079 if (chip->setup == 0x00 ||
1080 fp->altsetting == 1 || fp->altsetting == 2 ||
1081 fp->altsetting == 3)
1082 return 1;
1083 break;
1084 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1085 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1086 fp->altsetting == 5 || fp->altsetting == 6)
1087 return 1;
1088 break;
1090 return 0;
1094 * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
1095 * not for interface.
1098 enum {
1099 EMU_QUIRK_SR_44100HZ = 0,
1100 EMU_QUIRK_SR_48000HZ,
1101 EMU_QUIRK_SR_88200HZ,
1102 EMU_QUIRK_SR_96000HZ,
1103 EMU_QUIRK_SR_176400HZ,
1104 EMU_QUIRK_SR_192000HZ
1107 static void set_format_emu_quirk(struct snd_usb_substream *subs,
1108 struct audioformat *fmt)
1110 unsigned char emu_samplerate_id = 0;
1112 /* When capture is active
1113 * sample rate shouldn't be changed
1114 * by playback substream
1116 if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1117 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
1118 return;
1121 switch (fmt->rate_min) {
1122 case 48000:
1123 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1124 break;
1125 case 88200:
1126 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1127 break;
1128 case 96000:
1129 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1130 break;
1131 case 176400:
1132 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1133 break;
1134 case 192000:
1135 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1136 break;
1137 default:
1138 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1139 break;
1141 snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1142 subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
1145 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1146 struct audioformat *fmt)
1148 switch (subs->stream->chip->usb_id) {
1149 case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1150 case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1151 case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1152 case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
1153 set_format_emu_quirk(subs, fmt);
1154 break;
1158 bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
1160 /* devices which do not support reading the sample rate. */
1161 switch (chip->usb_id) {
1162 case USB_ID(0x041E, 0x4080): /* Creative Live Cam VF0610 */
1163 case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
1164 case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
1165 case USB_ID(0x05A3, 0x9420): /* ELP HD USB Camera */
1166 case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
1167 case USB_ID(0x1395, 0x740a): /* Sennheiser DECT */
1168 case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
1169 case USB_ID(0x21B4, 0x0081): /* AudioQuest DragonFly */
1170 return true;
1173 /* devices of these vendors don't support reading rate, either */
1174 switch (USB_ID_VENDOR(chip->usb_id)) {
1175 case 0x045E: /* MS Lifecam */
1176 case 0x047F: /* Plantronics */
1177 case 0x1de7: /* Phoenix Audio */
1178 return true;
1181 return false;
1184 /* ITF-USB DSD based DACs need a vendor cmd to switch
1185 * between PCM and native DSD mode
1187 static bool is_itf_usb_dsd_dac(unsigned int id)
1189 switch (id) {
1190 case USB_ID(0x154e, 0x1003): /* Denon DA-300USB */
1191 case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */
1192 case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */
1193 case USB_ID(0x1852, 0x5065): /* Luxman DA-06 */
1194 case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-501V2/UD-503/NT-503 */
1195 case USB_ID(0x0644, 0x8044): /* Esoteric D-05X */
1196 case USB_ID(0x0644, 0x804a): /* TEAC UD-301 */
1197 return true;
1199 return false;
1202 int snd_usb_select_mode_quirk(struct snd_usb_substream *subs,
1203 struct audioformat *fmt)
1205 struct usb_device *dev = subs->dev;
1206 int err;
1208 if (is_itf_usb_dsd_dac(subs->stream->chip->usb_id)) {
1209 /* First switch to alt set 0, otherwise the mode switch cmd
1210 * will not be accepted by the DAC
1212 err = usb_set_interface(dev, fmt->iface, 0);
1213 if (err < 0)
1214 return err;
1216 msleep(20); /* Delay needed after setting the interface */
1218 /* Vendor mode switch cmd is required. */
1219 if (fmt->formats & SNDRV_PCM_FMTBIT_DSD_U32_BE) {
1220 /* DSD mode (DSD_U32) requested */
1221 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1222 USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1223 1, 1, NULL, 0);
1224 if (err < 0)
1225 return err;
1227 } else {
1228 /* PCM or DOP mode (S32) requested */
1229 /* PCM mode (S16) requested */
1230 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1231 USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1232 0, 1, NULL, 0);
1233 if (err < 0)
1234 return err;
1237 msleep(20);
1239 return 0;
1242 void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1245 * "Playback Design" products send bogus feedback data at the start
1246 * of the stream. Ignore them.
1248 if (USB_ID_VENDOR(ep->chip->usb_id) == 0x23ba &&
1249 ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1250 ep->skip_packets = 4;
1253 * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1254 * world latency varies by approx. +/- 50 frames (at 96KHz) each time
1255 * the stream is (re)started. When skipping packets 16 at endpoint
1256 * start up, the real world latency is stable within +/- 1 frame (also
1257 * across power cycles).
1259 if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1260 ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
1261 ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1262 ep->skip_packets = 16;
1264 /* Work around devices that report unreasonable feedback data */
1265 if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) || /* TEAC UD-H01 */
1266 ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
1267 ep->syncmaxsize == 4)
1268 ep->tenor_fb_quirk = 1;
1271 void snd_usb_set_interface_quirk(struct usb_device *dev)
1273 struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1275 if (!chip)
1276 return;
1278 * "Playback Design" products need a 50ms delay after setting the
1279 * USB interface.
1281 switch (USB_ID_VENDOR(chip->usb_id)) {
1282 case 0x23ba: /* Playback Design */
1283 case 0x0644: /* TEAC Corp. */
1284 msleep(50);
1285 break;
1289 /* quirk applied after snd_usb_ctl_msg(); not applied during boot quirks */
1290 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1291 __u8 request, __u8 requesttype, __u16 value,
1292 __u16 index, void *data, __u16 size)
1294 struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1296 if (!chip)
1297 return;
1299 * "Playback Design" products need a 20ms delay after each
1300 * class compliant request
1302 if (USB_ID_VENDOR(chip->usb_id) == 0x23ba &&
1303 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1304 msleep(20);
1307 * "TEAC Corp." products need a 20ms delay after each
1308 * class compliant request
1310 if (USB_ID_VENDOR(chip->usb_id) == 0x0644 &&
1311 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1312 msleep(20);
1314 /* ITF-USB DSD based DACs functionality need a delay
1315 * after each class compliant request
1317 if (is_itf_usb_dsd_dac(chip->usb_id)
1318 && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1319 msleep(20);
1321 /* Zoom R16/24, Logitech H650e, Jabra 550a needs a tiny delay here,
1322 * otherwise requests like get/set frequency return as failed despite
1323 * actually succeeding.
1325 if ((chip->usb_id == USB_ID(0x1686, 0x00dd) ||
1326 chip->usb_id == USB_ID(0x046d, 0x0a46) ||
1327 chip->usb_id == USB_ID(0x0b0e, 0x0349)) &&
1328 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1329 usleep_range(1000, 2000);
1333 * snd_usb_interface_dsd_format_quirks() is called from format.c to
1334 * augment the PCM format bit-field for DSD types. The UAC standards
1335 * don't have a designated bit field to denote DSD-capable interfaces,
1336 * hence all hardware that is known to support this format has to be
1337 * listed here.
1339 u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1340 struct audioformat *fp,
1341 unsigned int sample_bytes)
1343 struct usb_interface *iface;
1345 /* Playback Designs */
1346 if (USB_ID_VENDOR(chip->usb_id) == 0x23ba) {
1347 switch (fp->altsetting) {
1348 case 1:
1349 fp->dsd_dop = true;
1350 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1351 case 2:
1352 fp->dsd_bitrev = true;
1353 return SNDRV_PCM_FMTBIT_DSD_U8;
1354 case 3:
1355 fp->dsd_bitrev = true;
1356 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1360 /* XMOS based USB DACs */
1361 switch (chip->usb_id) {
1362 case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */
1363 case USB_ID(0x20b1, 0x0002): /* Wyred 4 Sound DAC-2 DSD */
1364 case USB_ID(0x20b1, 0x2004): /* Matrix Audio X-SPDIF 2 */
1365 case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */
1366 case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */
1367 case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */
1368 case USB_ID(0x22d9, 0x0436): /* OPPO Sonica */
1369 case USB_ID(0x22d9, 0x0461): /* OPPO UDP-205 */
1370 case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */
1371 case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
1372 if (fp->altsetting == 2)
1373 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1374 break;
1376 case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */
1377 case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
1378 case USB_ID(0x16b0, 0x06b2): /* NuPrime DAC-10 */
1379 case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */
1380 case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */
1381 case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */
1382 case USB_ID(0x20b1, 0x000a): /* Gustard DAC-X20U */
1383 case USB_ID(0x20b1, 0x2005): /* Denafrips Ares DAC */
1384 case USB_ID(0x20b1, 0x2009): /* DIYINHK DSD DXD 384kHz USB to I2S/DSD */
1385 case USB_ID(0x20b1, 0x2023): /* JLsounds I2SoverUSB */
1386 case USB_ID(0x20b1, 0x3021): /* Eastern El. MiniMax Tube DAC Supreme */
1387 case USB_ID(0x20b1, 0x3023): /* Aune X1S 32BIT/384 DSD DAC */
1388 case USB_ID(0x20b1, 0x302d): /* Unison Research Unico CD Due */
1389 case USB_ID(0x20b1, 0x307b): /* CH Precision C1 DAC */
1390 case USB_ID(0x20b1, 0x3086): /* Singxer F-1 converter board */
1391 case USB_ID(0x22d9, 0x0426): /* OPPO HA-2 */
1392 case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */
1393 case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */
1394 case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
1395 case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */
1396 case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */
1397 case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */
1398 case USB_ID(0x6b42, 0x0042): /* MSB Technology */
1399 if (fp->altsetting == 3)
1400 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1401 break;
1403 /* Amanero Combo384 USB based DACs with native DSD support */
1404 case USB_ID(0x16d0, 0x071a): /* Amanero - Combo384 */
1405 case USB_ID(0x2ab6, 0x0004): /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */
1406 case USB_ID(0x2ab6, 0x0005): /* T+A USB HD Audio 1 */
1407 case USB_ID(0x2ab6, 0x0006): /* T+A USB HD Audio 2 */
1408 if (fp->altsetting == 2) {
1409 switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
1410 case 0x199:
1411 return SNDRV_PCM_FMTBIT_DSD_U32_LE;
1412 case 0x19b:
1413 case 0x203:
1414 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1415 default:
1416 break;
1419 break;
1420 case USB_ID(0x16d0, 0x0a23):
1421 if (fp->altsetting == 2)
1422 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1423 break;
1425 default:
1426 break;
1429 /* ITF-USB DSD based DACs */
1430 if (is_itf_usb_dsd_dac(chip->usb_id)) {
1431 iface = usb_ifnum_to_if(chip->dev, fp->iface);
1433 /* Altsetting 2 support native DSD if the num of altsets is
1434 * three (0-2),
1435 * Altsetting 3 support native DSD if the num of altsets is
1436 * four (0-3).
1438 if (fp->altsetting == iface->num_altsetting - 1)
1439 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1442 /* Mostly generic method to detect many DSD-capable implementations -
1443 * from XMOS/Thesycon
1445 switch (USB_ID_VENDOR(chip->usb_id)) {
1446 case 0x20b1: /* XMOS based devices */
1447 case 0x152a: /* Thesycon devices */
1448 case 0x25ce: /* Mytek devices */
1449 if (fp->dsd_raw)
1450 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1451 break;
1452 default:
1453 break;
1457 return 0;
1460 void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
1461 struct audioformat *fp,
1462 int stream)
1464 switch (chip->usb_id) {
1465 case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
1466 /* Optoplay sets the sample rate attribute although
1467 * it seems not supporting it in fact.
1469 fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
1470 break;
1471 case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
1472 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1473 /* doesn't set the sample rate attribute, but supports it */
1474 fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
1475 break;
1476 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro USB */
1477 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
1478 case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
1479 case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
1480 an older model 77d:223) */
1482 * plantronics headset and Griffin iMic have set adaptive-in
1483 * although it's really not...
1485 fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
1486 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
1487 fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
1488 else
1489 fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
1490 break;