Convert trailing spaces and periods in path components
[linux/fpc-iii.git] / sound / usb / quirks.c
blob825b6f2efada5a439096cec889c5d855d2bd2db0
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 */
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>
12 #include <sound/control.h>
13 #include <sound/core.h>
14 #include <sound/info.h>
15 #include <sound/pcm.h>
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"
30 * handle the quirks for the contained interfaces
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)
37 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
38 const struct snd_usb_audio_quirk *quirk;
39 int err;
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;
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 usb_driver_claim_interface(driver, iface, (void *)-1L);
62 return 0;
65 static int ignore_interface_quirk(struct snd_usb_audio *chip,
66 struct usb_interface *iface,
67 struct usb_driver *driver,
68 const struct snd_usb_audio_quirk *quirk)
70 return 0;
75 * Allow alignment on audio sub-slot (channel samples) rather than
76 * on audio slots (audio frames)
78 static int create_align_transfer_quirk(struct snd_usb_audio *chip,
79 struct usb_interface *iface,
80 struct usb_driver *driver,
81 const struct snd_usb_audio_quirk *quirk)
83 chip->txfr_quirk = 1;
84 return 1; /* Continue with creating streams and mixer */
87 static int create_any_midi_quirk(struct snd_usb_audio *chip,
88 struct usb_interface *intf,
89 struct usb_driver *driver,
90 const struct snd_usb_audio_quirk *quirk)
92 return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
96 * create a stream for an interface with proper descriptors
98 static int create_standard_audio_quirk(struct snd_usb_audio *chip,
99 struct usb_interface *iface,
100 struct usb_driver *driver,
101 const struct snd_usb_audio_quirk *quirk)
103 struct usb_host_interface *alts;
104 struct usb_interface_descriptor *altsd;
105 int err;
107 if (chip->usb_id == USB_ID(0x1686, 0x00dd)) /* Zoom R16/24 */
108 chip->tx_length_quirk = 1;
110 alts = &iface->altsetting[0];
111 altsd = get_iface_desc(alts);
112 err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
113 if (err < 0) {
114 usb_audio_err(chip, "cannot setup if %d: error %d\n",
115 altsd->bInterfaceNumber, err);
116 return err;
118 /* reset the current interface */
119 usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
120 return 0;
124 * create a stream for an endpoint/altsetting without proper descriptors
126 static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
127 struct usb_interface *iface,
128 struct usb_driver *driver,
129 const struct snd_usb_audio_quirk *quirk)
131 struct audioformat *fp;
132 struct usb_host_interface *alts;
133 struct usb_interface_descriptor *altsd;
134 int stream, err;
135 unsigned *rate_table = NULL;
137 fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
138 if (!fp)
139 return -ENOMEM;
141 INIT_LIST_HEAD(&fp->list);
142 if (fp->nr_rates > MAX_NR_RATES) {
143 kfree(fp);
144 return -EINVAL;
146 if (fp->nr_rates > 0) {
147 rate_table = kmemdup(fp->rate_table,
148 sizeof(int) * fp->nr_rates, GFP_KERNEL);
149 if (!rate_table) {
150 kfree(fp);
151 return -ENOMEM;
153 fp->rate_table = rate_table;
156 stream = (fp->endpoint & USB_DIR_IN)
157 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
158 err = snd_usb_add_audio_stream(chip, stream, fp);
159 if (err < 0)
160 goto error;
161 if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
162 fp->altset_idx >= iface->num_altsetting) {
163 err = -EINVAL;
164 goto error;
166 alts = &iface->altsetting[fp->altset_idx];
167 altsd = get_iface_desc(alts);
168 if (altsd->bNumEndpoints < 1) {
169 err = -EINVAL;
170 goto error;
173 fp->protocol = altsd->bInterfaceProtocol;
175 if (fp->datainterval == 0)
176 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
177 if (fp->maxpacksize == 0)
178 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
179 usb_set_interface(chip->dev, fp->iface, 0);
180 snd_usb_init_pitch(chip, fp->iface, alts, fp);
181 snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
182 return 0;
184 error:
185 list_del(&fp->list); /* unlink for avoiding double-free */
186 kfree(fp);
187 kfree(rate_table);
188 return err;
191 static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
192 struct usb_interface *iface,
193 struct usb_driver *driver)
195 struct usb_host_interface *alts;
196 struct usb_interface_descriptor *altsd;
197 struct usb_endpoint_descriptor *epd;
198 struct uac1_as_header_descriptor *ashd;
199 struct uac_format_type_i_discrete_descriptor *fmtd;
202 * Most Roland/Yamaha audio streaming interfaces have more or less
203 * standard descriptors, but older devices might lack descriptors, and
204 * future ones might change, so ensure that we fail silently if the
205 * interface doesn't look exactly right.
208 /* must have a non-zero altsetting for streaming */
209 if (iface->num_altsetting < 2)
210 return -ENODEV;
211 alts = &iface->altsetting[1];
212 altsd = get_iface_desc(alts);
214 /* must have an isochronous endpoint for streaming */
215 if (altsd->bNumEndpoints < 1)
216 return -ENODEV;
217 epd = get_endpoint(alts, 0);
218 if (!usb_endpoint_xfer_isoc(epd))
219 return -ENODEV;
221 /* must have format descriptors */
222 ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
223 UAC_AS_GENERAL);
224 fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
225 UAC_FORMAT_TYPE);
226 if (!ashd || ashd->bLength < 7 ||
227 !fmtd || fmtd->bLength < 8)
228 return -ENODEV;
230 return create_standard_audio_quirk(chip, iface, driver, NULL);
233 static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
234 struct usb_interface *iface,
235 struct usb_driver *driver,
236 struct usb_host_interface *alts)
238 static const struct snd_usb_audio_quirk yamaha_midi_quirk = {
239 .type = QUIRK_MIDI_YAMAHA
241 struct usb_midi_in_jack_descriptor *injd;
242 struct usb_midi_out_jack_descriptor *outjd;
244 /* must have some valid jack descriptors */
245 injd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
246 NULL, USB_MS_MIDI_IN_JACK);
247 outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
248 NULL, USB_MS_MIDI_OUT_JACK);
249 if (!injd && !outjd)
250 return -ENODEV;
251 if ((injd && !snd_usb_validate_midi_desc(injd)) ||
252 (outjd && !snd_usb_validate_midi_desc(outjd)))
253 return -ENODEV;
254 if (injd && (injd->bLength < 5 ||
255 (injd->bJackType != USB_MS_EMBEDDED &&
256 injd->bJackType != USB_MS_EXTERNAL)))
257 return -ENODEV;
258 if (outjd && (outjd->bLength < 6 ||
259 (outjd->bJackType != USB_MS_EMBEDDED &&
260 outjd->bJackType != USB_MS_EXTERNAL)))
261 return -ENODEV;
262 return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk);
265 static int create_roland_midi_quirk(struct snd_usb_audio *chip,
266 struct usb_interface *iface,
267 struct usb_driver *driver,
268 struct usb_host_interface *alts)
270 static const struct snd_usb_audio_quirk roland_midi_quirk = {
271 .type = QUIRK_MIDI_ROLAND
273 u8 *roland_desc = NULL;
275 /* might have a vendor-specific descriptor <06 24 F1 02 ...> */
276 for (;;) {
277 roland_desc = snd_usb_find_csint_desc(alts->extra,
278 alts->extralen,
279 roland_desc, 0xf1);
280 if (!roland_desc)
281 return -ENODEV;
282 if (roland_desc[0] < 6 || roland_desc[3] != 2)
283 continue;
284 return create_any_midi_quirk(chip, iface, driver,
285 &roland_midi_quirk);
289 static int create_std_midi_quirk(struct snd_usb_audio *chip,
290 struct usb_interface *iface,
291 struct usb_driver *driver,
292 struct usb_host_interface *alts)
294 struct usb_ms_header_descriptor *mshd;
295 struct usb_ms_endpoint_descriptor *msepd;
297 /* must have the MIDIStreaming interface header descriptor*/
298 mshd = (struct usb_ms_header_descriptor *)alts->extra;
299 if (alts->extralen < 7 ||
300 mshd->bLength < 7 ||
301 mshd->bDescriptorType != USB_DT_CS_INTERFACE ||
302 mshd->bDescriptorSubtype != USB_MS_HEADER)
303 return -ENODEV;
304 /* must have the MIDIStreaming endpoint descriptor*/
305 msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra;
306 if (alts->endpoint[0].extralen < 4 ||
307 msepd->bLength < 4 ||
308 msepd->bDescriptorType != USB_DT_CS_ENDPOINT ||
309 msepd->bDescriptorSubtype != UAC_MS_GENERAL ||
310 msepd->bNumEmbMIDIJack < 1 ||
311 msepd->bNumEmbMIDIJack > 16)
312 return -ENODEV;
314 return create_any_midi_quirk(chip, iface, driver, NULL);
317 static int create_auto_midi_quirk(struct snd_usb_audio *chip,
318 struct usb_interface *iface,
319 struct usb_driver *driver)
321 struct usb_host_interface *alts;
322 struct usb_interface_descriptor *altsd;
323 struct usb_endpoint_descriptor *epd;
324 int err;
326 alts = &iface->altsetting[0];
327 altsd = get_iface_desc(alts);
329 /* must have at least one bulk/interrupt endpoint for streaming */
330 if (altsd->bNumEndpoints < 1)
331 return -ENODEV;
332 epd = get_endpoint(alts, 0);
333 if (!usb_endpoint_xfer_bulk(epd) &&
334 !usb_endpoint_xfer_int(epd))
335 return -ENODEV;
337 switch (USB_ID_VENDOR(chip->usb_id)) {
338 case 0x0499: /* Yamaha */
339 err = create_yamaha_midi_quirk(chip, iface, driver, alts);
340 if (err != -ENODEV)
341 return err;
342 break;
343 case 0x0582: /* Roland */
344 err = create_roland_midi_quirk(chip, iface, driver, alts);
345 if (err != -ENODEV)
346 return err;
347 break;
350 return create_std_midi_quirk(chip, iface, driver, alts);
353 static int create_autodetect_quirk(struct snd_usb_audio *chip,
354 struct usb_interface *iface,
355 struct usb_driver *driver)
357 int err;
359 err = create_auto_pcm_quirk(chip, iface, driver);
360 if (err == -ENODEV)
361 err = create_auto_midi_quirk(chip, iface, driver);
362 return err;
365 static int create_autodetect_quirks(struct snd_usb_audio *chip,
366 struct usb_interface *iface,
367 struct usb_driver *driver,
368 const struct snd_usb_audio_quirk *quirk)
370 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
371 int ifcount, ifnum, err;
373 err = create_autodetect_quirk(chip, iface, driver);
374 if (err < 0)
375 return err;
378 * ALSA PCM playback/capture devices cannot be registered in two steps,
379 * so we have to claim the other corresponding interface here.
381 ifcount = chip->dev->actconfig->desc.bNumInterfaces;
382 for (ifnum = 0; ifnum < ifcount; ifnum++) {
383 if (ifnum == probed_ifnum || quirk->ifnum >= 0)
384 continue;
385 iface = usb_ifnum_to_if(chip->dev, ifnum);
386 if (!iface ||
387 usb_interface_claimed(iface) ||
388 get_iface_desc(iface->altsetting)->bInterfaceClass !=
389 USB_CLASS_VENDOR_SPEC)
390 continue;
392 err = create_autodetect_quirk(chip, iface, driver);
393 if (err >= 0)
394 usb_driver_claim_interface(driver, iface, (void *)-1L);
397 return 0;
401 * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
402 * The only way to detect the sample rate is by looking at wMaxPacketSize.
404 static int create_uaxx_quirk(struct snd_usb_audio *chip,
405 struct usb_interface *iface,
406 struct usb_driver *driver,
407 const struct snd_usb_audio_quirk *quirk)
409 static const struct audioformat ua_format = {
410 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
411 .channels = 2,
412 .fmt_type = UAC_FORMAT_TYPE_I,
413 .altsetting = 1,
414 .altset_idx = 1,
415 .rates = SNDRV_PCM_RATE_CONTINUOUS,
417 struct usb_host_interface *alts;
418 struct usb_interface_descriptor *altsd;
419 struct audioformat *fp;
420 int stream, err;
422 /* both PCM and MIDI interfaces have 2 or more altsettings */
423 if (iface->num_altsetting < 2)
424 return -ENXIO;
425 alts = &iface->altsetting[1];
426 altsd = get_iface_desc(alts);
428 if (altsd->bNumEndpoints == 2) {
429 static const struct snd_usb_midi_endpoint_info ua700_ep = {
430 .out_cables = 0x0003,
431 .in_cables = 0x0003
433 static const struct snd_usb_audio_quirk ua700_quirk = {
434 .type = QUIRK_MIDI_FIXED_ENDPOINT,
435 .data = &ua700_ep
437 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
438 .out_cables = 0x0001,
439 .in_cables = 0x0001
441 static const struct snd_usb_audio_quirk uaxx_quirk = {
442 .type = QUIRK_MIDI_FIXED_ENDPOINT,
443 .data = &uaxx_ep
445 const struct snd_usb_audio_quirk *quirk =
446 chip->usb_id == USB_ID(0x0582, 0x002b)
447 ? &ua700_quirk : &uaxx_quirk;
448 return __snd_usbmidi_create(chip->card, iface,
449 &chip->midi_list, quirk,
450 chip->usb_id);
453 if (altsd->bNumEndpoints != 1)
454 return -ENXIO;
456 fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
457 if (!fp)
458 return -ENOMEM;
460 fp->iface = altsd->bInterfaceNumber;
461 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
462 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
463 fp->datainterval = 0;
464 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
465 INIT_LIST_HEAD(&fp->list);
467 switch (fp->maxpacksize) {
468 case 0x120:
469 fp->rate_max = fp->rate_min = 44100;
470 break;
471 case 0x138:
472 case 0x140:
473 fp->rate_max = fp->rate_min = 48000;
474 break;
475 case 0x258:
476 case 0x260:
477 fp->rate_max = fp->rate_min = 96000;
478 break;
479 default:
480 usb_audio_err(chip, "unknown sample rate\n");
481 kfree(fp);
482 return -ENXIO;
485 stream = (fp->endpoint & USB_DIR_IN)
486 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
487 err = snd_usb_add_audio_stream(chip, stream, fp);
488 if (err < 0) {
489 list_del(&fp->list); /* unlink for avoiding double-free */
490 kfree(fp);
491 return err;
493 usb_set_interface(chip->dev, fp->iface, 0);
494 return 0;
498 * Create a standard mixer for the specified interface.
500 static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
501 struct usb_interface *iface,
502 struct usb_driver *driver,
503 const struct snd_usb_audio_quirk *quirk)
505 if (quirk->ifnum < 0)
506 return 0;
508 return snd_usb_create_mixer(chip, quirk->ifnum, 0);
512 static int setup_fmt_after_resume_quirk(struct snd_usb_audio *chip,
513 struct usb_interface *iface,
514 struct usb_driver *driver,
515 const struct snd_usb_audio_quirk *quirk)
517 chip->setup_fmt_after_resume_quirk = 1;
518 return 1; /* Continue with creating streams and mixer */
522 * audio-interface quirks
524 * returns zero if no standard audio/MIDI parsing is needed.
525 * returns a positive value if standard audio/midi interfaces are parsed
526 * after this.
527 * returns a negative value at error.
529 int snd_usb_create_quirk(struct snd_usb_audio *chip,
530 struct usb_interface *iface,
531 struct usb_driver *driver,
532 const struct snd_usb_audio_quirk *quirk)
534 typedef int (*quirk_func_t)(struct snd_usb_audio *,
535 struct usb_interface *,
536 struct usb_driver *,
537 const struct snd_usb_audio_quirk *);
538 static const quirk_func_t quirk_funcs[] = {
539 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
540 [QUIRK_COMPOSITE] = create_composite_quirk,
541 [QUIRK_AUTODETECT] = create_autodetect_quirks,
542 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
543 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
544 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
545 [QUIRK_MIDI_ROLAND] = create_any_midi_quirk,
546 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
547 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
548 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
549 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
550 [QUIRK_MIDI_CME] = create_any_midi_quirk,
551 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
552 [QUIRK_MIDI_FTDI] = create_any_midi_quirk,
553 [QUIRK_MIDI_CH345] = create_any_midi_quirk,
554 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
555 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
556 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
557 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
558 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
559 [QUIRK_SETUP_FMT_AFTER_RESUME] = setup_fmt_after_resume_quirk,
562 if (quirk->type < QUIRK_TYPE_COUNT) {
563 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
564 } else {
565 usb_audio_err(chip, "invalid quirk type %d\n", quirk->type);
566 return -ENXIO;
571 * boot quirks
574 #define EXTIGY_FIRMWARE_SIZE_OLD 794
575 #define EXTIGY_FIRMWARE_SIZE_NEW 483
577 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
579 struct usb_host_config *config = dev->actconfig;
580 int err;
582 if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
583 le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
584 dev_dbg(&dev->dev, "sending Extigy boot sequence...\n");
585 /* Send message to force it to reconnect with full interface. */
586 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
587 0x10, 0x43, 0x0001, 0x000a, NULL, 0);
588 if (err < 0)
589 dev_dbg(&dev->dev, "error sending boot message: %d\n", err);
590 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
591 &dev->descriptor, sizeof(dev->descriptor));
592 config = dev->actconfig;
593 if (err < 0)
594 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
595 err = usb_reset_configuration(dev);
596 if (err < 0)
597 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
598 dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n",
599 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
600 return -ENODEV; /* quit this anyway */
602 return 0;
605 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
607 u8 buf = 1;
609 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
610 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
611 0, 0, &buf, 1);
612 if (buf == 0) {
613 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
614 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
615 1, 2000, NULL, 0);
616 return -ENODEV;
618 return 0;
621 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
623 int err;
625 if (dev->actconfig->desc.bConfigurationValue == 1) {
626 dev_info(&dev->dev,
627 "Fast Track Pro switching to config #2\n");
628 /* This function has to be available by the usb core module.
629 * if it is not avialable the boot quirk has to be left out
630 * and the configuration has to be set by udev or hotplug
631 * rules
633 err = usb_driver_set_configuration(dev, 2);
634 if (err < 0)
635 dev_dbg(&dev->dev,
636 "error usb_driver_set_configuration: %d\n",
637 err);
638 /* Always return an error, so that we stop creating a device
639 that will just be destroyed and recreated with a new
640 configuration */
641 return -ENODEV;
642 } else
643 dev_info(&dev->dev, "Fast Track Pro config OK\n");
645 return 0;
649 * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
650 * documented in the device's data sheet.
652 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
654 u8 buf[4];
655 buf[0] = 0x20;
656 buf[1] = value & 0xff;
657 buf[2] = (value >> 8) & 0xff;
658 buf[3] = reg;
659 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
660 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
661 0, 0, &buf, 4);
664 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
667 * Enable line-out driver mode, set headphone source to front
668 * channels, enable stereo mic.
670 return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
674 * CM6206 registers from the CM6206 datasheet rev 2.1
676 #define CM6206_REG0_DMA_MASTER BIT(15)
677 #define CM6206_REG0_SPDIFO_RATE_48K (2 << 12)
678 #define CM6206_REG0_SPDIFO_RATE_96K (7 << 12)
679 /* Bit 4 thru 11 is the S/PDIF category code */
680 #define CM6206_REG0_SPDIFO_CAT_CODE_GENERAL (0 << 4)
681 #define CM6206_REG0_SPDIFO_EMPHASIS_CD BIT(3)
682 #define CM6206_REG0_SPDIFO_COPYRIGHT_NA BIT(2)
683 #define CM6206_REG0_SPDIFO_NON_AUDIO BIT(1)
684 #define CM6206_REG0_SPDIFO_PRO_FORMAT BIT(0)
686 #define CM6206_REG1_TEST_SEL_CLK BIT(14)
687 #define CM6206_REG1_PLLBIN_EN BIT(13)
688 #define CM6206_REG1_SOFT_MUTE_EN BIT(12)
689 #define CM6206_REG1_GPIO4_OUT BIT(11)
690 #define CM6206_REG1_GPIO4_OE BIT(10)
691 #define CM6206_REG1_GPIO3_OUT BIT(9)
692 #define CM6206_REG1_GPIO3_OE BIT(8)
693 #define CM6206_REG1_GPIO2_OUT BIT(7)
694 #define CM6206_REG1_GPIO2_OE BIT(6)
695 #define CM6206_REG1_GPIO1_OUT BIT(5)
696 #define CM6206_REG1_GPIO1_OE BIT(4)
697 #define CM6206_REG1_SPDIFO_INVALID BIT(3)
698 #define CM6206_REG1_SPDIF_LOOP_EN BIT(2)
699 #define CM6206_REG1_SPDIFO_DIS BIT(1)
700 #define CM6206_REG1_SPDIFI_MIX BIT(0)
702 #define CM6206_REG2_DRIVER_ON BIT(15)
703 #define CM6206_REG2_HEADP_SEL_SIDE_CHANNELS (0 << 13)
704 #define CM6206_REG2_HEADP_SEL_SURROUND_CHANNELS (1 << 13)
705 #define CM6206_REG2_HEADP_SEL_CENTER_SUBW (2 << 13)
706 #define CM6206_REG2_HEADP_SEL_FRONT_CHANNELS (3 << 13)
707 #define CM6206_REG2_MUTE_HEADPHONE_RIGHT BIT(12)
708 #define CM6206_REG2_MUTE_HEADPHONE_LEFT BIT(11)
709 #define CM6206_REG2_MUTE_REAR_SURROUND_RIGHT BIT(10)
710 #define CM6206_REG2_MUTE_REAR_SURROUND_LEFT BIT(9)
711 #define CM6206_REG2_MUTE_SIDE_SURROUND_RIGHT BIT(8)
712 #define CM6206_REG2_MUTE_SIDE_SURROUND_LEFT BIT(7)
713 #define CM6206_REG2_MUTE_SUBWOOFER BIT(6)
714 #define CM6206_REG2_MUTE_CENTER BIT(5)
715 #define CM6206_REG2_MUTE_RIGHT_FRONT BIT(3)
716 #define CM6206_REG2_MUTE_LEFT_FRONT BIT(3)
717 #define CM6206_REG2_EN_BTL BIT(2)
718 #define CM6206_REG2_MCUCLKSEL_1_5_MHZ (0)
719 #define CM6206_REG2_MCUCLKSEL_3_MHZ (1)
720 #define CM6206_REG2_MCUCLKSEL_6_MHZ (2)
721 #define CM6206_REG2_MCUCLKSEL_12_MHZ (3)
723 /* Bit 11..13 sets the sensitivity to FLY tuner volume control VP/VD signal */
724 #define CM6206_REG3_FLYSPEED_DEFAULT (2 << 11)
725 #define CM6206_REG3_VRAP25EN BIT(10)
726 #define CM6206_REG3_MSEL1 BIT(9)
727 #define CM6206_REG3_SPDIFI_RATE_44_1K BIT(0 << 7)
728 #define CM6206_REG3_SPDIFI_RATE_48K BIT(2 << 7)
729 #define CM6206_REG3_SPDIFI_RATE_32K BIT(3 << 7)
730 #define CM6206_REG3_PINSEL BIT(6)
731 #define CM6206_REG3_FOE BIT(5)
732 #define CM6206_REG3_ROE BIT(4)
733 #define CM6206_REG3_CBOE BIT(3)
734 #define CM6206_REG3_LOSE BIT(2)
735 #define CM6206_REG3_HPOE BIT(1)
736 #define CM6206_REG3_SPDIFI_CANREC BIT(0)
738 #define CM6206_REG5_DA_RSTN BIT(13)
739 #define CM6206_REG5_AD_RSTN BIT(12)
740 #define CM6206_REG5_SPDIFO_AD2SPDO BIT(12)
741 #define CM6206_REG5_SPDIFO_SEL_FRONT (0 << 9)
742 #define CM6206_REG5_SPDIFO_SEL_SIDE_SUR (1 << 9)
743 #define CM6206_REG5_SPDIFO_SEL_CEN_LFE (2 << 9)
744 #define CM6206_REG5_SPDIFO_SEL_REAR_SUR (3 << 9)
745 #define CM6206_REG5_CODECM BIT(8)
746 #define CM6206_REG5_EN_HPF BIT(7)
747 #define CM6206_REG5_T_SEL_DSDA4 BIT(6)
748 #define CM6206_REG5_T_SEL_DSDA3 BIT(5)
749 #define CM6206_REG5_T_SEL_DSDA2 BIT(4)
750 #define CM6206_REG5_T_SEL_DSDA1 BIT(3)
751 #define CM6206_REG5_T_SEL_DSDAD_NORMAL 0
752 #define CM6206_REG5_T_SEL_DSDAD_FRONT 4
753 #define CM6206_REG5_T_SEL_DSDAD_S_SURROUND 5
754 #define CM6206_REG5_T_SEL_DSDAD_CEN_LFE 6
755 #define CM6206_REG5_T_SEL_DSDAD_R_SURROUND 7
757 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
759 int err = 0, reg;
760 int val[] = {
762 * Values here are chosen based on sniffing USB traffic
763 * under Windows.
765 * REG0: DAC is master, sample rate 48kHz, no copyright
767 CM6206_REG0_SPDIFO_RATE_48K |
768 CM6206_REG0_SPDIFO_COPYRIGHT_NA,
770 * REG1: PLL binary search enable, soft mute enable.
772 CM6206_REG1_PLLBIN_EN |
773 CM6206_REG1_SOFT_MUTE_EN,
775 * REG2: enable output drivers,
776 * select front channels to the headphone output,
777 * then mute the headphone channels, run the MCU
778 * at 1.5 MHz.
780 CM6206_REG2_DRIVER_ON |
781 CM6206_REG2_HEADP_SEL_FRONT_CHANNELS |
782 CM6206_REG2_MUTE_HEADPHONE_RIGHT |
783 CM6206_REG2_MUTE_HEADPHONE_LEFT,
785 * REG3: default flyspeed, set 2.5V mic bias
786 * enable all line out ports and enable SPDIF
788 CM6206_REG3_FLYSPEED_DEFAULT |
789 CM6206_REG3_VRAP25EN |
790 CM6206_REG3_FOE |
791 CM6206_REG3_ROE |
792 CM6206_REG3_CBOE |
793 CM6206_REG3_LOSE |
794 CM6206_REG3_HPOE |
795 CM6206_REG3_SPDIFI_CANREC,
796 /* REG4 is just a bunch of GPIO lines */
797 0x0000,
798 /* REG5: de-assert AD/DA reset signals */
799 CM6206_REG5_DA_RSTN |
800 CM6206_REG5_AD_RSTN };
802 for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
803 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
804 if (err < 0)
805 return err;
808 return err;
811 /* quirk for Plantronics GameCom 780 with CM6302 chip */
812 static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
814 /* set the initial volume and don't change; other values are either
815 * too loud or silent due to firmware bug (bko#65251)
817 u8 buf[2] = { 0x74, 0xe3 };
818 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
819 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
820 UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
824 * Novation Twitch DJ controller
825 * Focusrite Novation Saffire 6 USB audio card
827 static int snd_usb_novation_boot_quirk(struct usb_device *dev)
829 /* preemptively set up the device because otherwise the
830 * raw MIDI endpoints are not active */
831 usb_set_interface(dev, 0, 1);
832 return 0;
836 * This call will put the synth in "USB send" mode, i.e it will send MIDI
837 * messages through USB (this is disabled at startup). The synth will
838 * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
839 * sign on its LCD. Values here are chosen based on sniffing USB traffic
840 * under Windows.
842 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
844 int err, actual_length;
845 /* "midi send" enable */
846 static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
847 void *buf;
849 if (snd_usb_pipe_sanity_check(dev, usb_sndintpipe(dev, 0x05)))
850 return -EINVAL;
851 buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
852 if (!buf)
853 return -ENOMEM;
854 err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
855 ARRAY_SIZE(seq), &actual_length, 1000);
856 kfree(buf);
857 if (err < 0)
858 return err;
860 return 0;
864 * Some sound cards from Native Instruments are in fact compliant to the USB
865 * audio standard of version 2 and other approved USB standards, even though
866 * they come up as vendor-specific device when first connected.
868 * However, they can be told to come up with a new set of descriptors
869 * upon their next enumeration, and the interfaces announced by the new
870 * descriptors will then be handled by the kernel's class drivers. As the
871 * product ID will also change, no further checks are required.
874 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
876 int ret;
878 if (snd_usb_pipe_sanity_check(dev, usb_sndctrlpipe(dev, 0)))
879 return -EINVAL;
880 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
881 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
882 1, 0, NULL, 0, 1000);
884 if (ret < 0)
885 return ret;
887 usb_reset_device(dev);
889 /* return -EAGAIN, so the creation of an audio interface for this
890 * temporary device is aborted. The device will reconnect with a
891 * new product ID */
892 return -EAGAIN;
895 static void mbox2_setup_48_24_magic(struct usb_device *dev)
897 u8 srate[3];
898 u8 temp[12];
900 /* Choose 48000Hz permanently */
901 srate[0] = 0x80;
902 srate[1] = 0xbb;
903 srate[2] = 0x00;
905 /* Send the magic! */
906 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
907 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
908 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
909 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
910 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
911 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
912 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
913 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
914 return;
917 /* Digidesign Mbox 2 needs to load firmware onboard
918 * and driver must wait a few seconds for initialisation.
921 #define MBOX2_FIRMWARE_SIZE 646
922 #define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */
923 #define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */
925 static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
927 struct usb_host_config *config = dev->actconfig;
928 int err;
929 u8 bootresponse[0x12];
930 int fwsize;
931 int count;
933 fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
935 if (fwsize != MBOX2_FIRMWARE_SIZE) {
936 dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize);
937 return -ENODEV;
940 dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n");
942 count = 0;
943 bootresponse[0] = MBOX2_BOOT_LOADING;
944 while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
945 msleep(500); /* 0.5 second delay */
946 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
947 /* Control magic - load onboard firmware */
948 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
949 if (bootresponse[0] == MBOX2_BOOT_READY)
950 break;
951 dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n");
952 count++;
955 if (bootresponse[0] != MBOX2_BOOT_READY) {
956 dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
957 return -ENODEV;
960 dev_dbg(&dev->dev, "device initialised!\n");
962 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
963 &dev->descriptor, sizeof(dev->descriptor));
964 config = dev->actconfig;
965 if (err < 0)
966 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
968 err = usb_reset_configuration(dev);
969 if (err < 0)
970 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
971 dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n",
972 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
974 mbox2_setup_48_24_magic(dev);
976 dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz");
978 return 0; /* Successful boot */
981 static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)
983 int err;
985 dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n");
987 if (snd_usb_pipe_sanity_check(dev, usb_sndctrlpipe(dev, 0)))
988 return -EINVAL;
989 /* If the Axe-Fx III has not fully booted, it will timeout when trying
990 * to enable the audio streaming interface. A more generous timeout is
991 * used here to detect when the Axe-Fx III has finished booting as the
992 * set interface message will be acked once it has
994 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
995 USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,
996 1, 1, NULL, 0, 120000);
997 if (err < 0) {
998 dev_err(&dev->dev,
999 "failed waiting for Axe-Fx III to boot: %d\n", err);
1000 return err;
1003 dev_dbg(&dev->dev, "Axe-Fx III is now ready\n");
1005 err = usb_set_interface(dev, 1, 0);
1006 if (err < 0)
1007 dev_dbg(&dev->dev,
1008 "error stopping Axe-Fx III interface: %d\n", err);
1010 return 0;
1014 #define MICROBOOK_BUF_SIZE 128
1016 static int snd_usb_motu_microbookii_communicate(struct usb_device *dev, u8 *buf,
1017 int buf_size, int *length)
1019 int err, actual_length;
1021 if (snd_usb_pipe_sanity_check(dev, usb_sndintpipe(dev, 0x01)))
1022 return -EINVAL;
1023 err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x01), buf, *length,
1024 &actual_length, 1000);
1025 if (err < 0)
1026 return err;
1028 print_hex_dump(KERN_DEBUG, "MicroBookII snd: ", DUMP_PREFIX_NONE, 16, 1,
1029 buf, actual_length, false);
1031 memset(buf, 0, buf_size);
1033 if (snd_usb_pipe_sanity_check(dev, usb_rcvintpipe(dev, 0x82)))
1034 return -EINVAL;
1035 err = usb_interrupt_msg(dev, usb_rcvintpipe(dev, 0x82), buf, buf_size,
1036 &actual_length, 1000);
1037 if (err < 0)
1038 return err;
1040 print_hex_dump(KERN_DEBUG, "MicroBookII rcv: ", DUMP_PREFIX_NONE, 16, 1,
1041 buf, actual_length, false);
1043 *length = actual_length;
1044 return 0;
1047 static int snd_usb_motu_microbookii_boot_quirk(struct usb_device *dev)
1049 int err, actual_length, poll_attempts = 0;
1050 static const u8 set_samplerate_seq[] = { 0x00, 0x00, 0x00, 0x00,
1051 0x00, 0x00, 0x0b, 0x14,
1052 0x00, 0x00, 0x00, 0x01 };
1053 static const u8 poll_ready_seq[] = { 0x00, 0x04, 0x00, 0x00,
1054 0x00, 0x00, 0x0b, 0x18 };
1055 u8 *buf = kzalloc(MICROBOOK_BUF_SIZE, GFP_KERNEL);
1057 if (!buf)
1058 return -ENOMEM;
1060 dev_info(&dev->dev, "Waiting for MOTU Microbook II to boot up...\n");
1062 /* First we tell the device which sample rate to use. */
1063 memcpy(buf, set_samplerate_seq, sizeof(set_samplerate_seq));
1064 actual_length = sizeof(set_samplerate_seq);
1065 err = snd_usb_motu_microbookii_communicate(dev, buf, MICROBOOK_BUF_SIZE,
1066 &actual_length);
1068 if (err < 0) {
1069 dev_err(&dev->dev,
1070 "failed setting the sample rate for Motu MicroBook II: %d\n",
1071 err);
1072 goto free_buf;
1075 /* Then we poll every 100 ms until the device informs of its readiness. */
1076 while (true) {
1077 if (++poll_attempts > 100) {
1078 dev_err(&dev->dev,
1079 "failed booting Motu MicroBook II: timeout\n");
1080 err = -ENODEV;
1081 goto free_buf;
1084 memset(buf, 0, MICROBOOK_BUF_SIZE);
1085 memcpy(buf, poll_ready_seq, sizeof(poll_ready_seq));
1087 actual_length = sizeof(poll_ready_seq);
1088 err = snd_usb_motu_microbookii_communicate(
1089 dev, buf, MICROBOOK_BUF_SIZE, &actual_length);
1090 if (err < 0) {
1091 dev_err(&dev->dev,
1092 "failed booting Motu MicroBook II: communication error %d\n",
1093 err);
1094 goto free_buf;
1097 /* the device signals its readiness through a message of the
1098 * form
1099 * XX 06 00 00 00 00 0b 18 00 00 00 01
1100 * If the device is not yet ready to accept audio data, the
1101 * last byte of that sequence is 00.
1103 if (actual_length == 12 && buf[actual_length - 1] == 1)
1104 break;
1106 msleep(100);
1109 dev_info(&dev->dev, "MOTU MicroBook II ready\n");
1111 free_buf:
1112 kfree(buf);
1113 return err;
1116 static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev)
1118 int ret;
1120 if (snd_usb_pipe_sanity_check(dev, usb_sndctrlpipe(dev, 0)))
1121 return -EINVAL;
1122 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1123 1, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1124 0x0, 0, NULL, 0, 1000);
1126 if (ret < 0)
1127 return ret;
1129 msleep(2000);
1131 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1132 1, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1133 0x20, 0, NULL, 0, 1000);
1135 if (ret < 0)
1136 return ret;
1138 return 0;
1142 * Setup quirks
1144 #define MAUDIO_SET 0x01 /* parse device_setup */
1145 #define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */
1146 #define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */
1147 #define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
1148 #define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */
1149 #define MAUDIO_SET_DI 0x10 /* enable Digital Input */
1150 #define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */
1151 #define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */
1152 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
1153 #define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */
1154 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
1156 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
1157 int iface, int altno)
1159 /* Reset ALL ifaces to 0 altsetting.
1160 * Call it for every possible altsetting of every interface.
1162 usb_set_interface(chip->dev, iface, 0);
1163 if (chip->setup & MAUDIO_SET) {
1164 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
1165 if (iface != 1 && iface != 2)
1166 return 1; /* skip all interfaces but 1 and 2 */
1167 } else {
1168 unsigned int mask;
1169 if (iface == 1 || iface == 2)
1170 return 1; /* skip interfaces 1 and 2 */
1171 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1172 return 1; /* skip this altsetting */
1173 mask = chip->setup & MAUDIO_SET_MASK;
1174 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1175 return 1; /* skip this altsetting */
1176 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1177 return 1; /* skip this altsetting */
1178 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
1179 return 1; /* skip this altsetting */
1182 usb_audio_dbg(chip,
1183 "using altsetting %d for interface %d config %d\n",
1184 altno, iface, chip->setup);
1185 return 0; /* keep this altsetting */
1188 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
1189 int iface,
1190 int altno)
1192 /* Reset ALL ifaces to 0 altsetting.
1193 * Call it for every possible altsetting of every interface.
1195 usb_set_interface(chip->dev, iface, 0);
1197 if (chip->setup & MAUDIO_SET) {
1198 unsigned int mask;
1199 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
1200 return 1; /* skip this altsetting */
1201 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1202 return 1; /* skip this altsetting */
1203 mask = chip->setup & MAUDIO_SET_MASK;
1204 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1205 return 1; /* skip this altsetting */
1206 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1207 return 1; /* skip this altsetting */
1208 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
1209 return 1; /* skip this altsetting */
1210 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
1211 return 1; /* skip this altsetting */
1214 return 0; /* keep this altsetting */
1217 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
1218 int iface, int altno)
1220 /* Reset ALL ifaces to 0 altsetting.
1221 * Call it for every possible altsetting of every interface.
1223 usb_set_interface(chip->dev, iface, 0);
1225 /* possible configuration where both inputs and only one output is
1226 *used is not supported by the current setup
1228 if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
1229 if (chip->setup & MAUDIO_SET_96K) {
1230 if (altno != 3 && altno != 6)
1231 return 1;
1232 } else if (chip->setup & MAUDIO_SET_DI) {
1233 if (iface == 4)
1234 return 1; /* no analog input */
1235 if (altno != 2 && altno != 5)
1236 return 1; /* enable only altsets 2 and 5 */
1237 } else {
1238 if (iface == 5)
1239 return 1; /* disable digialt input */
1240 if (altno != 2 && altno != 5)
1241 return 1; /* enalbe only altsets 2 and 5 */
1243 } else {
1244 /* keep only 16-Bit mode */
1245 if (altno != 1)
1246 return 1;
1249 usb_audio_dbg(chip,
1250 "using altsetting %d for interface %d config %d\n",
1251 altno, iface, chip->setup);
1252 return 0; /* keep this altsetting */
1255 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
1256 int iface,
1257 int altno)
1259 /* audiophile usb: skip altsets incompatible with device_setup */
1260 if (chip->usb_id == USB_ID(0x0763, 0x2003))
1261 return audiophile_skip_setting_quirk(chip, iface, altno);
1262 /* quattro usb: skip altsets incompatible with device_setup */
1263 if (chip->usb_id == USB_ID(0x0763, 0x2001))
1264 return quattro_skip_setting_quirk(chip, iface, altno);
1265 /* fasttrackpro usb: skip altsets incompatible with device_setup */
1266 if (chip->usb_id == USB_ID(0x0763, 0x2012))
1267 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
1269 return 0;
1272 int snd_usb_apply_boot_quirk(struct usb_device *dev,
1273 struct usb_interface *intf,
1274 const struct snd_usb_audio_quirk *quirk,
1275 unsigned int id)
1277 switch (id) {
1278 case USB_ID(0x041e, 0x3000):
1279 /* SB Extigy needs special boot-up sequence */
1280 /* if more models come, this will go to the quirk list. */
1281 return snd_usb_extigy_boot_quirk(dev, intf);
1283 case USB_ID(0x041e, 0x3020):
1284 /* SB Audigy 2 NX needs its own boot-up magic, too */
1285 return snd_usb_audigy2nx_boot_quirk(dev);
1287 case USB_ID(0x10f5, 0x0200):
1288 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
1289 return snd_usb_cm106_boot_quirk(dev);
1291 case USB_ID(0x0d8c, 0x0102):
1292 /* C-Media CM6206 / CM106-Like Sound Device */
1293 case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
1294 return snd_usb_cm6206_boot_quirk(dev);
1296 case USB_ID(0x0dba, 0x3000):
1297 /* Digidesign Mbox 2 */
1298 return snd_usb_mbox2_boot_quirk(dev);
1300 case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
1301 case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
1302 return snd_usb_novation_boot_quirk(dev);
1304 case USB_ID(0x133e, 0x0815):
1305 /* Access Music VirusTI Desktop */
1306 return snd_usb_accessmusic_boot_quirk(dev);
1308 case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
1309 case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
1310 case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
1311 return snd_usb_nativeinstruments_boot_quirk(dev);
1312 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
1313 return snd_usb_fasttrackpro_boot_quirk(dev);
1314 case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
1315 return snd_usb_gamecon780_boot_quirk(dev);
1316 case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */
1317 return snd_usb_axefx3_boot_quirk(dev);
1318 case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook II */
1320 * For some reason interface 3 with vendor-spec class is
1321 * detected on MicroBook IIc.
1323 if (get_iface_desc(intf->altsetting)->bInterfaceClass ==
1324 USB_CLASS_VENDOR_SPEC &&
1325 get_iface_desc(intf->altsetting)->bInterfaceNumber < 3)
1326 return snd_usb_motu_microbookii_boot_quirk(dev);
1327 break;
1330 return 0;
1333 int snd_usb_apply_boot_quirk_once(struct usb_device *dev,
1334 struct usb_interface *intf,
1335 const struct snd_usb_audio_quirk *quirk,
1336 unsigned int id)
1338 switch (id) {
1339 case USB_ID(0x07fd, 0x0008): /* MOTU M Series */
1340 return snd_usb_motu_m_series_boot_quirk(dev);
1343 return 0;
1347 * check if the device uses big-endian samples
1349 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
1351 /* it depends on altsetting whether the device is big-endian or not */
1352 switch (chip->usb_id) {
1353 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
1354 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1355 fp->altsetting == 5 || fp->altsetting == 6)
1356 return 1;
1357 break;
1358 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1359 if (chip->setup == 0x00 ||
1360 fp->altsetting == 1 || fp->altsetting == 2 ||
1361 fp->altsetting == 3)
1362 return 1;
1363 break;
1364 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1365 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1366 fp->altsetting == 5 || fp->altsetting == 6)
1367 return 1;
1368 break;
1370 return 0;
1374 * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
1375 * not for interface.
1378 enum {
1379 EMU_QUIRK_SR_44100HZ = 0,
1380 EMU_QUIRK_SR_48000HZ,
1381 EMU_QUIRK_SR_88200HZ,
1382 EMU_QUIRK_SR_96000HZ,
1383 EMU_QUIRK_SR_176400HZ,
1384 EMU_QUIRK_SR_192000HZ
1387 static void set_format_emu_quirk(struct snd_usb_substream *subs,
1388 struct audioformat *fmt)
1390 unsigned char emu_samplerate_id = 0;
1392 /* When capture is active
1393 * sample rate shouldn't be changed
1394 * by playback substream
1396 if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1397 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
1398 return;
1401 switch (fmt->rate_min) {
1402 case 48000:
1403 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1404 break;
1405 case 88200:
1406 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1407 break;
1408 case 96000:
1409 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1410 break;
1411 case 176400:
1412 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1413 break;
1414 case 192000:
1415 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1416 break;
1417 default:
1418 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1419 break;
1421 snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1422 subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
1425 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1426 struct audioformat *fmt)
1428 switch (subs->stream->chip->usb_id) {
1429 case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1430 case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1431 case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1432 case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
1433 set_format_emu_quirk(subs, fmt);
1434 break;
1435 case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */
1436 subs->stream_offset_adj = 2;
1437 break;
1441 bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
1443 /* devices which do not support reading the sample rate. */
1444 switch (chip->usb_id) {
1445 case USB_ID(0x041E, 0x4080): /* Creative Live Cam VF0610 */
1446 case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
1447 case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
1448 case USB_ID(0x05A3, 0x9420): /* ELP HD USB Camera */
1449 case USB_ID(0x05a7, 0x1020): /* Bose Companion 5 */
1450 case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
1451 case USB_ID(0x1395, 0x740a): /* Sennheiser DECT */
1452 case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
1453 case USB_ID(0x21B4, 0x0081): /* AudioQuest DragonFly */
1454 case USB_ID(0x2912, 0x30c8): /* Audioengine D1 */
1455 return true;
1458 /* devices of these vendors don't support reading rate, either */
1459 switch (USB_ID_VENDOR(chip->usb_id)) {
1460 case 0x045E: /* MS Lifecam */
1461 case 0x047F: /* Plantronics */
1462 case 0x1de7: /* Phoenix Audio */
1463 return true;
1466 return false;
1469 /* ITF-USB DSD based DACs need a vendor cmd to switch
1470 * between PCM and native DSD mode
1472 static bool is_itf_usb_dsd_dac(unsigned int id)
1474 switch (id) {
1475 case USB_ID(0x154e, 0x1002): /* Denon DCD-1500RE */
1476 case USB_ID(0x154e, 0x1003): /* Denon DA-300USB */
1477 case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */
1478 case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */
1479 case USB_ID(0x1852, 0x5065): /* Luxman DA-06 */
1480 case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-501V2/UD-503/NT-503 */
1481 case USB_ID(0x0644, 0x8044): /* Esoteric D-05X */
1482 case USB_ID(0x0644, 0x804a): /* TEAC UD-301 */
1483 return true;
1485 return false;
1488 int snd_usb_select_mode_quirk(struct snd_usb_substream *subs,
1489 struct audioformat *fmt)
1491 struct usb_device *dev = subs->dev;
1492 int err;
1494 if (is_itf_usb_dsd_dac(subs->stream->chip->usb_id)) {
1495 /* First switch to alt set 0, otherwise the mode switch cmd
1496 * will not be accepted by the DAC
1498 err = usb_set_interface(dev, fmt->iface, 0);
1499 if (err < 0)
1500 return err;
1502 msleep(20); /* Delay needed after setting the interface */
1504 /* Vendor mode switch cmd is required. */
1505 if (fmt->formats & SNDRV_PCM_FMTBIT_DSD_U32_BE) {
1506 /* DSD mode (DSD_U32) requested */
1507 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1508 USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1509 1, 1, NULL, 0);
1510 if (err < 0)
1511 return err;
1513 } else {
1514 /* PCM or DOP mode (S32) requested */
1515 /* PCM mode (S16) requested */
1516 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1517 USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1518 0, 1, NULL, 0);
1519 if (err < 0)
1520 return err;
1523 msleep(20);
1525 return 0;
1528 void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1531 * "Playback Design" products send bogus feedback data at the start
1532 * of the stream. Ignore them.
1534 if (USB_ID_VENDOR(ep->chip->usb_id) == 0x23ba &&
1535 ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1536 ep->skip_packets = 4;
1539 * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1540 * world latency varies by approx. +/- 50 frames (at 96KHz) each time
1541 * the stream is (re)started. When skipping packets 16 at endpoint
1542 * start up, the real world latency is stable within +/- 1 frame (also
1543 * across power cycles).
1545 if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1546 ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
1547 ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1548 ep->skip_packets = 16;
1550 /* Work around devices that report unreasonable feedback data */
1551 if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) || /* TEAC UD-H01 */
1552 ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
1553 ep->syncmaxsize == 4)
1554 ep->tenor_fb_quirk = 1;
1557 void snd_usb_set_interface_quirk(struct usb_device *dev)
1559 struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1561 if (!chip)
1562 return;
1564 * "Playback Design" products need a 50ms delay after setting the
1565 * USB interface.
1567 switch (USB_ID_VENDOR(chip->usb_id)) {
1568 case 0x23ba: /* Playback Design */
1569 case 0x0644: /* TEAC Corp. */
1570 msleep(50);
1571 break;
1575 /* quirk applied after snd_usb_ctl_msg(); not applied during boot quirks */
1576 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1577 __u8 request, __u8 requesttype, __u16 value,
1578 __u16 index, void *data, __u16 size)
1580 struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1582 if (!chip)
1583 return;
1585 * "Playback Design" products need a 20ms delay after each
1586 * class compliant request
1588 if (USB_ID_VENDOR(chip->usb_id) == 0x23ba &&
1589 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1590 msleep(20);
1593 * "TEAC Corp." products need a 20ms delay after each
1594 * class compliant request
1596 if (USB_ID_VENDOR(chip->usb_id) == 0x0644 &&
1597 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1598 msleep(20);
1600 /* ITF-USB DSD based DACs functionality need a delay
1601 * after each class compliant request
1603 if (is_itf_usb_dsd_dac(chip->usb_id)
1604 && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1605 msleep(20);
1607 /* Zoom R16/24, Logitech H650e/H570e, Jabra 550a, Kingston HyperX
1608 * needs a tiny delay here, otherwise requests like get/set
1609 * frequency return as failed despite actually succeeding.
1611 if ((chip->usb_id == USB_ID(0x1686, 0x00dd) ||
1612 chip->usb_id == USB_ID(0x046d, 0x0a46) ||
1613 chip->usb_id == USB_ID(0x046d, 0x0a56) ||
1614 chip->usb_id == USB_ID(0x0b0e, 0x0349) ||
1615 chip->usb_id == USB_ID(0x0951, 0x16ad)) &&
1616 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1617 usleep_range(1000, 2000);
1620 * Samsung USBC Headset (AKG) need a tiny delay after each
1621 * class compliant request. (Model number: AAM625R or AAM627R)
1623 if (chip->usb_id == USB_ID(0x04e8, 0xa051) &&
1624 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1625 usleep_range(5000, 6000);
1629 * snd_usb_interface_dsd_format_quirks() is called from format.c to
1630 * augment the PCM format bit-field for DSD types. The UAC standards
1631 * don't have a designated bit field to denote DSD-capable interfaces,
1632 * hence all hardware that is known to support this format has to be
1633 * listed here.
1635 u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1636 struct audioformat *fp,
1637 unsigned int sample_bytes)
1639 struct usb_interface *iface;
1641 /* Playback Designs */
1642 if (USB_ID_VENDOR(chip->usb_id) == 0x23ba &&
1643 USB_ID_PRODUCT(chip->usb_id) < 0x0110) {
1644 switch (fp->altsetting) {
1645 case 1:
1646 fp->dsd_dop = true;
1647 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1648 case 2:
1649 fp->dsd_bitrev = true;
1650 return SNDRV_PCM_FMTBIT_DSD_U8;
1651 case 3:
1652 fp->dsd_bitrev = true;
1653 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1657 /* XMOS based USB DACs */
1658 switch (chip->usb_id) {
1659 case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */
1660 case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */
1661 case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
1662 if (fp->altsetting == 2)
1663 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1664 break;
1666 case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
1667 case USB_ID(0x10cb, 0x0103): /* The Bit Opus #3; with fp->dsd_raw */
1668 case USB_ID(0x16d0, 0x06b2): /* NuPrime DAC-10 */
1669 case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */
1670 case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */
1671 case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */
1672 case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */
1673 case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */
1674 case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */
1675 case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
1676 case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */
1677 case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */
1678 case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */
1679 case USB_ID(0x6b42, 0x0042): /* MSB Technology */
1680 if (fp->altsetting == 3)
1681 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1682 break;
1684 /* Amanero Combo384 USB based DACs with native DSD support */
1685 case USB_ID(0x16d0, 0x071a): /* Amanero - Combo384 */
1686 case USB_ID(0x2ab6, 0x0004): /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */
1687 case USB_ID(0x2ab6, 0x0005): /* T+A USB HD Audio 1 */
1688 case USB_ID(0x2ab6, 0x0006): /* T+A USB HD Audio 2 */
1689 if (fp->altsetting == 2) {
1690 switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
1691 case 0x199:
1692 return SNDRV_PCM_FMTBIT_DSD_U32_LE;
1693 case 0x19b:
1694 case 0x203:
1695 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1696 default:
1697 break;
1700 break;
1701 case USB_ID(0x16d0, 0x0a23):
1702 if (fp->altsetting == 2)
1703 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1704 break;
1706 default:
1707 break;
1710 /* ITF-USB DSD based DACs */
1711 if (is_itf_usb_dsd_dac(chip->usb_id)) {
1712 iface = usb_ifnum_to_if(chip->dev, fp->iface);
1714 /* Altsetting 2 support native DSD if the num of altsets is
1715 * three (0-2),
1716 * Altsetting 3 support native DSD if the num of altsets is
1717 * four (0-3).
1719 if (fp->altsetting == iface->num_altsetting - 1)
1720 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1723 /* Mostly generic method to detect many DSD-capable implementations -
1724 * from XMOS/Thesycon
1726 switch (USB_ID_VENDOR(chip->usb_id)) {
1727 case 0x152a: /* Thesycon devices */
1728 case 0x20b1: /* XMOS based devices */
1729 case 0x22d9: /* Oppo */
1730 case 0x23ba: /* Playback Designs */
1731 case 0x25ce: /* Mytek devices */
1732 case 0x278b: /* Rotel? */
1733 case 0x292b: /* Gustard/Ess based devices */
1734 case 0x2ab6: /* T+A devices */
1735 case 0x3353: /* Khadas devices */
1736 case 0x3842: /* EVGA */
1737 case 0xc502: /* HiBy devices */
1738 if (fp->dsd_raw)
1739 return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1740 break;
1741 default:
1742 break;
1746 return 0;
1749 void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
1750 struct audioformat *fp,
1751 int stream)
1753 switch (chip->usb_id) {
1754 case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
1755 /* Optoplay sets the sample rate attribute although
1756 * it seems not supporting it in fact.
1758 fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
1759 break;
1760 case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
1761 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1762 /* doesn't set the sample rate attribute, but supports it */
1763 fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
1764 break;
1765 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro USB */
1766 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
1767 case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
1768 case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
1769 an older model 77d:223) */
1771 * plantronics headset and Griffin iMic have set adaptive-in
1772 * although it's really not...
1774 fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
1775 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
1776 fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
1777 else
1778 fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
1779 break;
1780 case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook IIc */
1782 * MaxPacketsOnly attribute is erroneously set in endpoint
1783 * descriptors. As a result this card produces noise with
1784 * all sample rates other than 96 KHz.
1786 fp->attributes &= ~UAC_EP_CS_ATTR_FILL_MAX;
1787 break;
1788 case USB_ID(0x1235, 0x8202): /* Focusrite Scarlett 2i2 2nd gen */
1789 case USB_ID(0x1235, 0x8205): /* Focusrite Scarlett Solo 2nd gen */
1791 * Reports that playback should use Synch: Synchronous
1792 * while still providing a feedback endpoint.
1793 * Synchronous causes snapping on some sample rates.
1794 * Force it to use Synch: Asynchronous.
1796 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1797 fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
1798 fp->ep_attr |= USB_ENDPOINT_SYNC_ASYNC;
1800 break;
1805 * registration quirk:
1806 * the registration is skipped if a device matches with the given ID,
1807 * unless the interface reaches to the defined one. This is for delaying
1808 * the registration until the last known interface, so that the card and
1809 * devices appear at the same time.
1812 struct registration_quirk {
1813 unsigned int usb_id; /* composed via USB_ID() */
1814 unsigned int interface; /* the interface to trigger register */
1817 #define REG_QUIRK_ENTRY(vendor, product, iface) \
1818 { .usb_id = USB_ID(vendor, product), .interface = (iface) }
1820 static const struct registration_quirk registration_quirks[] = {
1821 REG_QUIRK_ENTRY(0x0951, 0x16d8, 2), /* Kingston HyperX AMP */
1822 REG_QUIRK_ENTRY(0x0951, 0x16ed, 2), /* Kingston HyperX Cloud Alpha S */
1823 REG_QUIRK_ENTRY(0x0951, 0x16ea, 2), /* Kingston HyperX Cloud Flight S */
1824 { 0 } /* terminator */
1827 /* return true if skipping registration */
1828 bool snd_usb_registration_quirk(struct snd_usb_audio *chip, int iface)
1830 const struct registration_quirk *q;
1832 for (q = registration_quirks; q->usb_id; q++)
1833 if (chip->usb_id == q->usb_id)
1834 return iface != q->interface;
1836 /* Register as normal */
1837 return false;