xref: /openbmc/linux/sound/usb/quirks.c (revision 0545810f)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  */
4 
5 #include <linux/init.h>
6 #include <linux/slab.h>
7 #include <linux/usb.h>
8 #include <linux/usb/audio.h>
9 #include <linux/usb/midi.h>
10 #include <linux/bits.h>
11 
12 #include <sound/control.h>
13 #include <sound/core.h>
14 #include <sound/info.h>
15 #include <sound/pcm.h>
16 
17 #include "usbaudio.h"
18 #include "card.h"
19 #include "mixer.h"
20 #include "mixer_quirks.h"
21 #include "midi.h"
22 #include "quirks.h"
23 #include "helper.h"
24 #include "endpoint.h"
25 #include "pcm.h"
26 #include "clock.h"
27 #include "stream.h"
28 
29 /*
30  * handle the quirks for the contained interfaces
31  */
32 static int create_composite_quirk(struct snd_usb_audio *chip,
33 				  struct usb_interface *iface,
34 				  struct usb_driver *driver,
35 				  const struct snd_usb_audio_quirk *quirk_comp)
36 {
37 	int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
38 	const struct snd_usb_audio_quirk *quirk;
39 	int err;
40 
41 	for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) {
42 		iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
43 		if (!iface)
44 			continue;
45 		if (quirk->ifnum != probed_ifnum &&
46 		    usb_interface_claimed(iface))
47 			continue;
48 		err = snd_usb_create_quirk(chip, iface, driver, quirk);
49 		if (err < 0)
50 			return err;
51 	}
52 
53 	for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) {
54 		iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
55 		if (!iface)
56 			continue;
57 		if (quirk->ifnum != probed_ifnum &&
58 		    !usb_interface_claimed(iface)) {
59 			err = usb_driver_claim_interface(driver, iface,
60 							 USB_AUDIO_IFACE_UNUSED);
61 			if (err < 0)
62 				return err;
63 		}
64 	}
65 
66 	return 0;
67 }
68 
69 static int ignore_interface_quirk(struct snd_usb_audio *chip,
70 				  struct usb_interface *iface,
71 				  struct usb_driver *driver,
72 				  const struct snd_usb_audio_quirk *quirk)
73 {
74 	return 0;
75 }
76 
77 
78 static int create_any_midi_quirk(struct snd_usb_audio *chip,
79 				 struct usb_interface *intf,
80 				 struct usb_driver *driver,
81 				 const struct snd_usb_audio_quirk *quirk)
82 {
83 	return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
84 }
85 
86 /*
87  * create a stream for an interface with proper descriptors
88  */
89 static int create_standard_audio_quirk(struct snd_usb_audio *chip,
90 				       struct usb_interface *iface,
91 				       struct usb_driver *driver,
92 				       const struct snd_usb_audio_quirk *quirk)
93 {
94 	struct usb_host_interface *alts;
95 	struct usb_interface_descriptor *altsd;
96 	int err;
97 
98 	alts = &iface->altsetting[0];
99 	altsd = get_iface_desc(alts);
100 	err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
101 	if (err < 0) {
102 		usb_audio_err(chip, "cannot setup if %d: error %d\n",
103 			   altsd->bInterfaceNumber, err);
104 		return err;
105 	}
106 	/* reset the current interface */
107 	usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
108 	return 0;
109 }
110 
111 /* create the audio stream and the corresponding endpoints from the fixed
112  * audioformat object; this is used for quirks with the fixed EPs
113  */
114 static int add_audio_stream_from_fixed_fmt(struct snd_usb_audio *chip,
115 					   struct audioformat *fp)
116 {
117 	int stream, err;
118 
119 	stream = (fp->endpoint & USB_DIR_IN) ?
120 		SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
121 
122 	snd_usb_audioformat_set_sync_ep(chip, fp);
123 
124 	err = snd_usb_add_audio_stream(chip, stream, fp);
125 	if (err < 0)
126 		return err;
127 
128 	err = snd_usb_add_endpoint(chip, fp->endpoint,
129 				   SND_USB_ENDPOINT_TYPE_DATA);
130 	if (err < 0)
131 		return err;
132 
133 	if (fp->sync_ep) {
134 		err = snd_usb_add_endpoint(chip, fp->sync_ep,
135 					   fp->implicit_fb ?
136 					   SND_USB_ENDPOINT_TYPE_DATA :
137 					   SND_USB_ENDPOINT_TYPE_SYNC);
138 		if (err < 0)
139 			return err;
140 	}
141 
142 	return 0;
143 }
144 
145 /*
146  * create a stream for an endpoint/altsetting without proper descriptors
147  */
148 static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
149 				     struct usb_interface *iface,
150 				     struct usb_driver *driver,
151 				     const struct snd_usb_audio_quirk *quirk)
152 {
153 	struct audioformat *fp;
154 	struct usb_host_interface *alts;
155 	struct usb_interface_descriptor *altsd;
156 	unsigned *rate_table = NULL;
157 	int err;
158 
159 	fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
160 	if (!fp)
161 		return -ENOMEM;
162 
163 	INIT_LIST_HEAD(&fp->list);
164 	if (fp->nr_rates > MAX_NR_RATES) {
165 		kfree(fp);
166 		return -EINVAL;
167 	}
168 	if (fp->nr_rates > 0) {
169 		rate_table = kmemdup(fp->rate_table,
170 				     sizeof(int) * fp->nr_rates, GFP_KERNEL);
171 		if (!rate_table) {
172 			kfree(fp);
173 			return -ENOMEM;
174 		}
175 		fp->rate_table = rate_table;
176 	}
177 
178 	if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
179 	    fp->altset_idx >= iface->num_altsetting) {
180 		err = -EINVAL;
181 		goto error;
182 	}
183 	alts = &iface->altsetting[fp->altset_idx];
184 	altsd = get_iface_desc(alts);
185 	if (altsd->bNumEndpoints <= fp->ep_idx) {
186 		err = -EINVAL;
187 		goto error;
188 	}
189 
190 	fp->protocol = altsd->bInterfaceProtocol;
191 
192 	if (fp->datainterval == 0)
193 		fp->datainterval = snd_usb_parse_datainterval(chip, alts);
194 	if (fp->maxpacksize == 0)
195 		fp->maxpacksize = le16_to_cpu(get_endpoint(alts, fp->ep_idx)->wMaxPacketSize);
196 	if (!fp->fmt_type)
197 		fp->fmt_type = UAC_FORMAT_TYPE_I;
198 
199 	err = add_audio_stream_from_fixed_fmt(chip, fp);
200 	if (err < 0)
201 		goto error;
202 
203 	usb_set_interface(chip->dev, fp->iface, 0);
204 	snd_usb_init_pitch(chip, fp);
205 	snd_usb_init_sample_rate(chip, fp, fp->rate_max);
206 	return 0;
207 
208  error:
209 	list_del(&fp->list); /* unlink for avoiding double-free */
210 	kfree(fp);
211 	kfree(rate_table);
212 	return err;
213 }
214 
215 static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
216 				 struct usb_interface *iface,
217 				 struct usb_driver *driver)
218 {
219 	struct usb_host_interface *alts;
220 	struct usb_interface_descriptor *altsd;
221 	struct usb_endpoint_descriptor *epd;
222 	struct uac1_as_header_descriptor *ashd;
223 	struct uac_format_type_i_discrete_descriptor *fmtd;
224 
225 	/*
226 	 * Most Roland/Yamaha audio streaming interfaces have more or less
227 	 * standard descriptors, but older devices might lack descriptors, and
228 	 * future ones might change, so ensure that we fail silently if the
229 	 * interface doesn't look exactly right.
230 	 */
231 
232 	/* must have a non-zero altsetting for streaming */
233 	if (iface->num_altsetting < 2)
234 		return -ENODEV;
235 	alts = &iface->altsetting[1];
236 	altsd = get_iface_desc(alts);
237 
238 	/* must have an isochronous endpoint for streaming */
239 	if (altsd->bNumEndpoints < 1)
240 		return -ENODEV;
241 	epd = get_endpoint(alts, 0);
242 	if (!usb_endpoint_xfer_isoc(epd))
243 		return -ENODEV;
244 
245 	/* must have format descriptors */
246 	ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
247 				       UAC_AS_GENERAL);
248 	fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
249 				       UAC_FORMAT_TYPE);
250 	if (!ashd || ashd->bLength < 7 ||
251 	    !fmtd || fmtd->bLength < 8)
252 		return -ENODEV;
253 
254 	return create_standard_audio_quirk(chip, iface, driver, NULL);
255 }
256 
257 static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
258 				    struct usb_interface *iface,
259 				    struct usb_driver *driver,
260 				    struct usb_host_interface *alts)
261 {
262 	static const struct snd_usb_audio_quirk yamaha_midi_quirk = {
263 		.type = QUIRK_MIDI_YAMAHA
264 	};
265 	struct usb_midi_in_jack_descriptor *injd;
266 	struct usb_midi_out_jack_descriptor *outjd;
267 
268 	/* must have some valid jack descriptors */
269 	injd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
270 				       NULL, USB_MS_MIDI_IN_JACK);
271 	outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
272 					NULL, USB_MS_MIDI_OUT_JACK);
273 	if (!injd && !outjd)
274 		return -ENODEV;
275 	if ((injd && !snd_usb_validate_midi_desc(injd)) ||
276 	    (outjd && !snd_usb_validate_midi_desc(outjd)))
277 		return -ENODEV;
278 	if (injd && (injd->bLength < 5 ||
279 		     (injd->bJackType != USB_MS_EMBEDDED &&
280 		      injd->bJackType != USB_MS_EXTERNAL)))
281 		return -ENODEV;
282 	if (outjd && (outjd->bLength < 6 ||
283 		      (outjd->bJackType != USB_MS_EMBEDDED &&
284 		       outjd->bJackType != USB_MS_EXTERNAL)))
285 		return -ENODEV;
286 	return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk);
287 }
288 
289 static int create_roland_midi_quirk(struct snd_usb_audio *chip,
290 				    struct usb_interface *iface,
291 				    struct usb_driver *driver,
292 				    struct usb_host_interface *alts)
293 {
294 	static const struct snd_usb_audio_quirk roland_midi_quirk = {
295 		.type = QUIRK_MIDI_ROLAND
296 	};
297 	u8 *roland_desc = NULL;
298 
299 	/* might have a vendor-specific descriptor <06 24 F1 02 ...> */
300 	for (;;) {
301 		roland_desc = snd_usb_find_csint_desc(alts->extra,
302 						      alts->extralen,
303 						      roland_desc, 0xf1);
304 		if (!roland_desc)
305 			return -ENODEV;
306 		if (roland_desc[0] < 6 || roland_desc[3] != 2)
307 			continue;
308 		return create_any_midi_quirk(chip, iface, driver,
309 					     &roland_midi_quirk);
310 	}
311 }
312 
313 static int create_std_midi_quirk(struct snd_usb_audio *chip,
314 				 struct usb_interface *iface,
315 				 struct usb_driver *driver,
316 				 struct usb_host_interface *alts)
317 {
318 	struct usb_ms_header_descriptor *mshd;
319 	struct usb_ms_endpoint_descriptor *msepd;
320 
321 	/* must have the MIDIStreaming interface header descriptor*/
322 	mshd = (struct usb_ms_header_descriptor *)alts->extra;
323 	if (alts->extralen < 7 ||
324 	    mshd->bLength < 7 ||
325 	    mshd->bDescriptorType != USB_DT_CS_INTERFACE ||
326 	    mshd->bDescriptorSubtype != USB_MS_HEADER)
327 		return -ENODEV;
328 	/* must have the MIDIStreaming endpoint descriptor*/
329 	msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra;
330 	if (alts->endpoint[0].extralen < 4 ||
331 	    msepd->bLength < 4 ||
332 	    msepd->bDescriptorType != USB_DT_CS_ENDPOINT ||
333 	    msepd->bDescriptorSubtype != UAC_MS_GENERAL ||
334 	    msepd->bNumEmbMIDIJack < 1 ||
335 	    msepd->bNumEmbMIDIJack > 16)
336 		return -ENODEV;
337 
338 	return create_any_midi_quirk(chip, iface, driver, NULL);
339 }
340 
341 static int create_auto_midi_quirk(struct snd_usb_audio *chip,
342 				  struct usb_interface *iface,
343 				  struct usb_driver *driver)
344 {
345 	struct usb_host_interface *alts;
346 	struct usb_interface_descriptor *altsd;
347 	struct usb_endpoint_descriptor *epd;
348 	int err;
349 
350 	alts = &iface->altsetting[0];
351 	altsd = get_iface_desc(alts);
352 
353 	/* must have at least one bulk/interrupt endpoint for streaming */
354 	if (altsd->bNumEndpoints < 1)
355 		return -ENODEV;
356 	epd = get_endpoint(alts, 0);
357 	if (!usb_endpoint_xfer_bulk(epd) &&
358 	    !usb_endpoint_xfer_int(epd))
359 		return -ENODEV;
360 
361 	switch (USB_ID_VENDOR(chip->usb_id)) {
362 	case 0x0499: /* Yamaha */
363 		err = create_yamaha_midi_quirk(chip, iface, driver, alts);
364 		if (err != -ENODEV)
365 			return err;
366 		break;
367 	case 0x0582: /* Roland */
368 		err = create_roland_midi_quirk(chip, iface, driver, alts);
369 		if (err != -ENODEV)
370 			return err;
371 		break;
372 	}
373 
374 	return create_std_midi_quirk(chip, iface, driver, alts);
375 }
376 
377 static int create_autodetect_quirk(struct snd_usb_audio *chip,
378 				   struct usb_interface *iface,
379 				   struct usb_driver *driver,
380 				   const struct snd_usb_audio_quirk *quirk)
381 {
382 	int err;
383 
384 	err = create_auto_pcm_quirk(chip, iface, driver);
385 	if (err == -ENODEV)
386 		err = create_auto_midi_quirk(chip, iface, driver);
387 	return err;
388 }
389 
390 /*
391  * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
392  * The only way to detect the sample rate is by looking at wMaxPacketSize.
393  */
394 static int create_uaxx_quirk(struct snd_usb_audio *chip,
395 			     struct usb_interface *iface,
396 			     struct usb_driver *driver,
397 			     const struct snd_usb_audio_quirk *quirk)
398 {
399 	static const struct audioformat ua_format = {
400 		.formats = SNDRV_PCM_FMTBIT_S24_3LE,
401 		.channels = 2,
402 		.fmt_type = UAC_FORMAT_TYPE_I,
403 		.altsetting = 1,
404 		.altset_idx = 1,
405 		.rates = SNDRV_PCM_RATE_CONTINUOUS,
406 	};
407 	struct usb_host_interface *alts;
408 	struct usb_interface_descriptor *altsd;
409 	struct audioformat *fp;
410 	int err;
411 
412 	/* both PCM and MIDI interfaces have 2 or more altsettings */
413 	if (iface->num_altsetting < 2)
414 		return -ENXIO;
415 	alts = &iface->altsetting[1];
416 	altsd = get_iface_desc(alts);
417 
418 	if (altsd->bNumEndpoints == 2) {
419 		static const struct snd_usb_midi_endpoint_info ua700_ep = {
420 			.out_cables = 0x0003,
421 			.in_cables  = 0x0003
422 		};
423 		static const struct snd_usb_audio_quirk ua700_quirk = {
424 			.type = QUIRK_MIDI_FIXED_ENDPOINT,
425 			.data = &ua700_ep
426 		};
427 		static const struct snd_usb_midi_endpoint_info uaxx_ep = {
428 			.out_cables = 0x0001,
429 			.in_cables  = 0x0001
430 		};
431 		static const struct snd_usb_audio_quirk uaxx_quirk = {
432 			.type = QUIRK_MIDI_FIXED_ENDPOINT,
433 			.data = &uaxx_ep
434 		};
435 		const struct snd_usb_audio_quirk *quirk =
436 			chip->usb_id == USB_ID(0x0582, 0x002b)
437 			? &ua700_quirk : &uaxx_quirk;
438 		return __snd_usbmidi_create(chip->card, iface,
439 					  &chip->midi_list, quirk,
440 					  chip->usb_id);
441 	}
442 
443 	if (altsd->bNumEndpoints != 1)
444 		return -ENXIO;
445 
446 	fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
447 	if (!fp)
448 		return -ENOMEM;
449 
450 	fp->iface = altsd->bInterfaceNumber;
451 	fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
452 	fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
453 	fp->datainterval = 0;
454 	fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
455 	INIT_LIST_HEAD(&fp->list);
456 
457 	switch (fp->maxpacksize) {
458 	case 0x120:
459 		fp->rate_max = fp->rate_min = 44100;
460 		break;
461 	case 0x138:
462 	case 0x140:
463 		fp->rate_max = fp->rate_min = 48000;
464 		break;
465 	case 0x258:
466 	case 0x260:
467 		fp->rate_max = fp->rate_min = 96000;
468 		break;
469 	default:
470 		usb_audio_err(chip, "unknown sample rate\n");
471 		kfree(fp);
472 		return -ENXIO;
473 	}
474 
475 	err = add_audio_stream_from_fixed_fmt(chip, fp);
476 	if (err < 0) {
477 		list_del(&fp->list); /* unlink for avoiding double-free */
478 		kfree(fp);
479 		return err;
480 	}
481 	usb_set_interface(chip->dev, fp->iface, 0);
482 	return 0;
483 }
484 
485 /*
486  * Create a standard mixer for the specified interface.
487  */
488 static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
489 				       struct usb_interface *iface,
490 				       struct usb_driver *driver,
491 				       const struct snd_usb_audio_quirk *quirk)
492 {
493 	if (quirk->ifnum < 0)
494 		return 0;
495 
496 	return snd_usb_create_mixer(chip, quirk->ifnum);
497 }
498 
499 /*
500  * audio-interface quirks
501  *
502  * returns zero if no standard audio/MIDI parsing is needed.
503  * returns a positive value if standard audio/midi interfaces are parsed
504  * after this.
505  * returns a negative value at error.
506  */
507 int snd_usb_create_quirk(struct snd_usb_audio *chip,
508 			 struct usb_interface *iface,
509 			 struct usb_driver *driver,
510 			 const struct snd_usb_audio_quirk *quirk)
511 {
512 	typedef int (*quirk_func_t)(struct snd_usb_audio *,
513 				    struct usb_interface *,
514 				    struct usb_driver *,
515 				    const struct snd_usb_audio_quirk *);
516 	static const quirk_func_t quirk_funcs[] = {
517 		[QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
518 		[QUIRK_COMPOSITE] = create_composite_quirk,
519 		[QUIRK_AUTODETECT] = create_autodetect_quirk,
520 		[QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
521 		[QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
522 		[QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
523 		[QUIRK_MIDI_ROLAND] = create_any_midi_quirk,
524 		[QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
525 		[QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
526 		[QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
527 		[QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
528 		[QUIRK_MIDI_CME] = create_any_midi_quirk,
529 		[QUIRK_MIDI_AKAI] = create_any_midi_quirk,
530 		[QUIRK_MIDI_FTDI] = create_any_midi_quirk,
531 		[QUIRK_MIDI_CH345] = create_any_midi_quirk,
532 		[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
533 		[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
534 		[QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
535 		[QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
536 	};
537 
538 	if (quirk->type < QUIRK_TYPE_COUNT) {
539 		return quirk_funcs[quirk->type](chip, iface, driver, quirk);
540 	} else {
541 		usb_audio_err(chip, "invalid quirk type %d\n", quirk->type);
542 		return -ENXIO;
543 	}
544 }
545 
546 /*
547  * boot quirks
548  */
549 
550 #define EXTIGY_FIRMWARE_SIZE_OLD 794
551 #define EXTIGY_FIRMWARE_SIZE_NEW 483
552 
553 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
554 {
555 	struct usb_host_config *config = dev->actconfig;
556 	int err;
557 
558 	if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
559 	    le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
560 		dev_dbg(&dev->dev, "sending Extigy boot sequence...\n");
561 		/* Send message to force it to reconnect with full interface. */
562 		err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
563 				      0x10, 0x43, 0x0001, 0x000a, NULL, 0);
564 		if (err < 0)
565 			dev_dbg(&dev->dev, "error sending boot message: %d\n", err);
566 		err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
567 				&dev->descriptor, sizeof(dev->descriptor));
568 		config = dev->actconfig;
569 		if (err < 0)
570 			dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
571 		err = usb_reset_configuration(dev);
572 		if (err < 0)
573 			dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
574 		dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n",
575 			    le16_to_cpu(get_cfg_desc(config)->wTotalLength));
576 		return -ENODEV; /* quit this anyway */
577 	}
578 	return 0;
579 }
580 
581 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
582 {
583 	u8 buf = 1;
584 
585 	snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
586 			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
587 			0, 0, &buf, 1);
588 	if (buf == 0) {
589 		snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
590 				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
591 				1, 2000, NULL, 0);
592 		return -ENODEV;
593 	}
594 	return 0;
595 }
596 
597 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
598 {
599 	int err;
600 
601 	if (dev->actconfig->desc.bConfigurationValue == 1) {
602 		dev_info(&dev->dev,
603 			   "Fast Track Pro switching to config #2\n");
604 		/* This function has to be available by the usb core module.
605 		 * if it is not avialable the boot quirk has to be left out
606 		 * and the configuration has to be set by udev or hotplug
607 		 * rules
608 		 */
609 		err = usb_driver_set_configuration(dev, 2);
610 		if (err < 0)
611 			dev_dbg(&dev->dev,
612 				"error usb_driver_set_configuration: %d\n",
613 				err);
614 		/* Always return an error, so that we stop creating a device
615 		   that will just be destroyed and recreated with a new
616 		   configuration */
617 		return -ENODEV;
618 	} else
619 		dev_info(&dev->dev, "Fast Track Pro config OK\n");
620 
621 	return 0;
622 }
623 
624 /*
625  * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
626  * documented in the device's data sheet.
627  */
628 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
629 {
630 	u8 buf[4];
631 	buf[0] = 0x20;
632 	buf[1] = value & 0xff;
633 	buf[2] = (value >> 8) & 0xff;
634 	buf[3] = reg;
635 	return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
636 			       USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
637 			       0, 0, &buf, 4);
638 }
639 
640 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
641 {
642 	/*
643 	 * Enable line-out driver mode, set headphone source to front
644 	 * channels, enable stereo mic.
645 	 */
646 	return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
647 }
648 
649 /*
650  * CM6206 registers from the CM6206 datasheet rev 2.1
651  */
652 #define CM6206_REG0_DMA_MASTER BIT(15)
653 #define CM6206_REG0_SPDIFO_RATE_48K (2 << 12)
654 #define CM6206_REG0_SPDIFO_RATE_96K (7 << 12)
655 /* Bit 4 thru 11 is the S/PDIF category code */
656 #define CM6206_REG0_SPDIFO_CAT_CODE_GENERAL (0 << 4)
657 #define CM6206_REG0_SPDIFO_EMPHASIS_CD BIT(3)
658 #define CM6206_REG0_SPDIFO_COPYRIGHT_NA BIT(2)
659 #define CM6206_REG0_SPDIFO_NON_AUDIO BIT(1)
660 #define CM6206_REG0_SPDIFO_PRO_FORMAT BIT(0)
661 
662 #define CM6206_REG1_TEST_SEL_CLK BIT(14)
663 #define CM6206_REG1_PLLBIN_EN BIT(13)
664 #define CM6206_REG1_SOFT_MUTE_EN BIT(12)
665 #define CM6206_REG1_GPIO4_OUT BIT(11)
666 #define CM6206_REG1_GPIO4_OE BIT(10)
667 #define CM6206_REG1_GPIO3_OUT BIT(9)
668 #define CM6206_REG1_GPIO3_OE BIT(8)
669 #define CM6206_REG1_GPIO2_OUT BIT(7)
670 #define CM6206_REG1_GPIO2_OE BIT(6)
671 #define CM6206_REG1_GPIO1_OUT BIT(5)
672 #define CM6206_REG1_GPIO1_OE BIT(4)
673 #define CM6206_REG1_SPDIFO_INVALID BIT(3)
674 #define CM6206_REG1_SPDIF_LOOP_EN BIT(2)
675 #define CM6206_REG1_SPDIFO_DIS BIT(1)
676 #define CM6206_REG1_SPDIFI_MIX BIT(0)
677 
678 #define CM6206_REG2_DRIVER_ON BIT(15)
679 #define CM6206_REG2_HEADP_SEL_SIDE_CHANNELS (0 << 13)
680 #define CM6206_REG2_HEADP_SEL_SURROUND_CHANNELS (1 << 13)
681 #define CM6206_REG2_HEADP_SEL_CENTER_SUBW (2 << 13)
682 #define CM6206_REG2_HEADP_SEL_FRONT_CHANNELS (3 << 13)
683 #define CM6206_REG2_MUTE_HEADPHONE_RIGHT BIT(12)
684 #define CM6206_REG2_MUTE_HEADPHONE_LEFT BIT(11)
685 #define CM6206_REG2_MUTE_REAR_SURROUND_RIGHT BIT(10)
686 #define CM6206_REG2_MUTE_REAR_SURROUND_LEFT BIT(9)
687 #define CM6206_REG2_MUTE_SIDE_SURROUND_RIGHT BIT(8)
688 #define CM6206_REG2_MUTE_SIDE_SURROUND_LEFT BIT(7)
689 #define CM6206_REG2_MUTE_SUBWOOFER BIT(6)
690 #define CM6206_REG2_MUTE_CENTER BIT(5)
691 #define CM6206_REG2_MUTE_RIGHT_FRONT BIT(3)
692 #define CM6206_REG2_MUTE_LEFT_FRONT BIT(3)
693 #define CM6206_REG2_EN_BTL BIT(2)
694 #define CM6206_REG2_MCUCLKSEL_1_5_MHZ (0)
695 #define CM6206_REG2_MCUCLKSEL_3_MHZ (1)
696 #define CM6206_REG2_MCUCLKSEL_6_MHZ (2)
697 #define CM6206_REG2_MCUCLKSEL_12_MHZ (3)
698 
699 /* Bit 11..13 sets the sensitivity to FLY tuner volume control VP/VD signal */
700 #define CM6206_REG3_FLYSPEED_DEFAULT (2 << 11)
701 #define CM6206_REG3_VRAP25EN BIT(10)
702 #define CM6206_REG3_MSEL1 BIT(9)
703 #define CM6206_REG3_SPDIFI_RATE_44_1K BIT(0 << 7)
704 #define CM6206_REG3_SPDIFI_RATE_48K BIT(2 << 7)
705 #define CM6206_REG3_SPDIFI_RATE_32K BIT(3 << 7)
706 #define CM6206_REG3_PINSEL BIT(6)
707 #define CM6206_REG3_FOE BIT(5)
708 #define CM6206_REG3_ROE BIT(4)
709 #define CM6206_REG3_CBOE BIT(3)
710 #define CM6206_REG3_LOSE BIT(2)
711 #define CM6206_REG3_HPOE BIT(1)
712 #define CM6206_REG3_SPDIFI_CANREC BIT(0)
713 
714 #define CM6206_REG5_DA_RSTN BIT(13)
715 #define CM6206_REG5_AD_RSTN BIT(12)
716 #define CM6206_REG5_SPDIFO_AD2SPDO BIT(12)
717 #define CM6206_REG5_SPDIFO_SEL_FRONT (0 << 9)
718 #define CM6206_REG5_SPDIFO_SEL_SIDE_SUR (1 << 9)
719 #define CM6206_REG5_SPDIFO_SEL_CEN_LFE (2 << 9)
720 #define CM6206_REG5_SPDIFO_SEL_REAR_SUR (3 << 9)
721 #define CM6206_REG5_CODECM BIT(8)
722 #define CM6206_REG5_EN_HPF BIT(7)
723 #define CM6206_REG5_T_SEL_DSDA4 BIT(6)
724 #define CM6206_REG5_T_SEL_DSDA3 BIT(5)
725 #define CM6206_REG5_T_SEL_DSDA2 BIT(4)
726 #define CM6206_REG5_T_SEL_DSDA1 BIT(3)
727 #define CM6206_REG5_T_SEL_DSDAD_NORMAL 0
728 #define CM6206_REG5_T_SEL_DSDAD_FRONT 4
729 #define CM6206_REG5_T_SEL_DSDAD_S_SURROUND 5
730 #define CM6206_REG5_T_SEL_DSDAD_CEN_LFE 6
731 #define CM6206_REG5_T_SEL_DSDAD_R_SURROUND 7
732 
733 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
734 {
735 	int err  = 0, reg;
736 	int val[] = {
737 		/*
738 		 * Values here are chosen based on sniffing USB traffic
739 		 * under Windows.
740 		 *
741 		 * REG0: DAC is master, sample rate 48kHz, no copyright
742 		 */
743 		CM6206_REG0_SPDIFO_RATE_48K |
744 		CM6206_REG0_SPDIFO_COPYRIGHT_NA,
745 		/*
746 		 * REG1: PLL binary search enable, soft mute enable.
747 		 */
748 		CM6206_REG1_PLLBIN_EN |
749 		CM6206_REG1_SOFT_MUTE_EN,
750 		/*
751 		 * REG2: enable output drivers,
752 		 * select front channels to the headphone output,
753 		 * then mute the headphone channels, run the MCU
754 		 * at 1.5 MHz.
755 		 */
756 		CM6206_REG2_DRIVER_ON |
757 		CM6206_REG2_HEADP_SEL_FRONT_CHANNELS |
758 		CM6206_REG2_MUTE_HEADPHONE_RIGHT |
759 		CM6206_REG2_MUTE_HEADPHONE_LEFT,
760 		/*
761 		 * REG3: default flyspeed, set 2.5V mic bias
762 		 * enable all line out ports and enable SPDIF
763 		 */
764 		CM6206_REG3_FLYSPEED_DEFAULT |
765 		CM6206_REG3_VRAP25EN |
766 		CM6206_REG3_FOE |
767 		CM6206_REG3_ROE |
768 		CM6206_REG3_CBOE |
769 		CM6206_REG3_LOSE |
770 		CM6206_REG3_HPOE |
771 		CM6206_REG3_SPDIFI_CANREC,
772 		/* REG4 is just a bunch of GPIO lines */
773 		0x0000,
774 		/* REG5: de-assert AD/DA reset signals */
775 		CM6206_REG5_DA_RSTN |
776 		CM6206_REG5_AD_RSTN };
777 
778 	for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
779 		err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
780 		if (err < 0)
781 			return err;
782 	}
783 
784 	return err;
785 }
786 
787 /* quirk for Plantronics GameCom 780 with CM6302 chip */
788 static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
789 {
790 	/* set the initial volume and don't change; other values are either
791 	 * too loud or silent due to firmware bug (bko#65251)
792 	 */
793 	u8 buf[2] = { 0x74, 0xe3 };
794 	return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
795 			USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
796 			UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
797 }
798 
799 /*
800  * Novation Twitch DJ controller
801  * Focusrite Novation Saffire 6 USB audio card
802  */
803 static int snd_usb_novation_boot_quirk(struct usb_device *dev)
804 {
805 	/* preemptively set up the device because otherwise the
806 	 * raw MIDI endpoints are not active */
807 	usb_set_interface(dev, 0, 1);
808 	return 0;
809 }
810 
811 /*
812  * This call will put the synth in "USB send" mode, i.e it will send MIDI
813  * messages through USB (this is disabled at startup). The synth will
814  * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
815  * sign on its LCD. Values here are chosen based on sniffing USB traffic
816  * under Windows.
817  */
818 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
819 {
820 	int err, actual_length;
821 	/* "midi send" enable */
822 	static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
823 	void *buf;
824 
825 	if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x05)))
826 		return -EINVAL;
827 	buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
828 	if (!buf)
829 		return -ENOMEM;
830 	err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
831 			ARRAY_SIZE(seq), &actual_length, 1000);
832 	kfree(buf);
833 	if (err < 0)
834 		return err;
835 
836 	return 0;
837 }
838 
839 /*
840  * Some sound cards from Native Instruments are in fact compliant to the USB
841  * audio standard of version 2 and other approved USB standards, even though
842  * they come up as vendor-specific device when first connected.
843  *
844  * However, they can be told to come up with a new set of descriptors
845  * upon their next enumeration, and the interfaces announced by the new
846  * descriptors will then be handled by the kernel's class drivers. As the
847  * product ID will also change, no further checks are required.
848  */
849 
850 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
851 {
852 	int ret;
853 
854 	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
855 				  0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
856 				  1, 0, NULL, 0, 1000);
857 
858 	if (ret < 0)
859 		return ret;
860 
861 	usb_reset_device(dev);
862 
863 	/* return -EAGAIN, so the creation of an audio interface for this
864 	 * temporary device is aborted. The device will reconnect with a
865 	 * new product ID */
866 	return -EAGAIN;
867 }
868 
869 static void mbox2_setup_48_24_magic(struct usb_device *dev)
870 {
871 	u8 srate[3];
872 	u8 temp[12];
873 
874 	/* Choose 48000Hz permanently */
875 	srate[0] = 0x80;
876 	srate[1] = 0xbb;
877 	srate[2] = 0x00;
878 
879 	/* Send the magic! */
880 	snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
881 		0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
882 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
883 		0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
884 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
885 		0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
886 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
887 		0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
888 	return;
889 }
890 
891 /* Digidesign Mbox 2 needs to load firmware onboard
892  * and driver must wait a few seconds for initialisation.
893  */
894 
895 #define MBOX2_FIRMWARE_SIZE    646
896 #define MBOX2_BOOT_LOADING     0x01 /* Hard coded into the device */
897 #define MBOX2_BOOT_READY       0x02 /* Hard coded into the device */
898 
899 static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
900 {
901 	struct usb_host_config *config = dev->actconfig;
902 	int err;
903 	u8 bootresponse[0x12];
904 	int fwsize;
905 	int count;
906 
907 	fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
908 
909 	if (fwsize != MBOX2_FIRMWARE_SIZE) {
910 		dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize);
911 		return -ENODEV;
912 	}
913 
914 	dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n");
915 
916 	count = 0;
917 	bootresponse[0] = MBOX2_BOOT_LOADING;
918 	while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
919 		msleep(500); /* 0.5 second delay */
920 		snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
921 			/* Control magic - load onboard firmware */
922 			0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
923 		if (bootresponse[0] == MBOX2_BOOT_READY)
924 			break;
925 		dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n");
926 		count++;
927 	}
928 
929 	if (bootresponse[0] != MBOX2_BOOT_READY) {
930 		dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
931 		return -ENODEV;
932 	}
933 
934 	dev_dbg(&dev->dev, "device initialised!\n");
935 
936 	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
937 		&dev->descriptor, sizeof(dev->descriptor));
938 	config = dev->actconfig;
939 	if (err < 0)
940 		dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
941 
942 	err = usb_reset_configuration(dev);
943 	if (err < 0)
944 		dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
945 	dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n",
946 		le16_to_cpu(get_cfg_desc(config)->wTotalLength));
947 
948 	mbox2_setup_48_24_magic(dev);
949 
950 	dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz");
951 
952 	return 0; /* Successful boot */
953 }
954 
955 static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)
956 {
957 	int err;
958 
959 	dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n");
960 
961 	/* If the Axe-Fx III has not fully booted, it will timeout when trying
962 	 * to enable the audio streaming interface. A more generous timeout is
963 	 * used here to detect when the Axe-Fx III has finished booting as the
964 	 * set interface message will be acked once it has
965 	 */
966 	err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
967 				USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,
968 				1, 1, NULL, 0, 120000);
969 	if (err < 0) {
970 		dev_err(&dev->dev,
971 			"failed waiting for Axe-Fx III to boot: %d\n", err);
972 		return err;
973 	}
974 
975 	dev_dbg(&dev->dev, "Axe-Fx III is now ready\n");
976 
977 	err = usb_set_interface(dev, 1, 0);
978 	if (err < 0)
979 		dev_dbg(&dev->dev,
980 			"error stopping Axe-Fx III interface: %d\n", err);
981 
982 	return 0;
983 }
984 
985 static void mbox3_setup_48_24_magic(struct usb_device *dev)
986 {
987 	/* The Mbox 3 is "little endian" */
988 	/* max volume is: 0x0000. */
989 	/* min volume is: 0x0080 (shown in little endian form) */
990 
991 
992 	/* Load 48000Hz rate into buffer */
993 	u8 com_buff[4] = {0x80, 0xbb, 0x00, 0x00};
994 
995 	/* Set 48000Hz sample rate */
996 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
997 			0x01, 0x21, 0x0100, 0x0001, &com_buff, 4);  //Is this really needed?
998 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
999 			0x01, 0x21, 0x0100, 0x8101, &com_buff, 4);
1000 
1001 	/* Deactivate Tuner */
1002 	/* on  = 0x01*/
1003 	/* off = 0x00*/
1004 	com_buff[0] = 0x00;
1005 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1006 		0x01, 0x21, 0x0003, 0x2001, &com_buff, 1);
1007 
1008 	/* Set clock source to Internal (as opposed to S/PDIF) */
1009 	com_buff[0] = 0x01;
1010 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1011 			1, 0x21, 0x0100, 0x8001, &com_buff, 1);
1012 
1013 	/* Mute the hardware loopbacks to start the device in a known state. */
1014 	com_buff[0] = 0x00;
1015 	com_buff[1] = 0x80;
1016 	/* Analogue input 1 left channel: */
1017 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1018 			1, 0x21, 0x0110, 0x4001, &com_buff, 2);
1019 	/* Analogue input 1 right channel: */
1020 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1021 			1, 0x21, 0x0111, 0x4001, &com_buff, 2);
1022 	/* Analogue input 2 left channel: */
1023 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1024 			1, 0x21, 0x0114, 0x4001, &com_buff, 2);
1025 	/* Analogue input 2 right channel: */
1026 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1027 			1, 0x21, 0x0115, 0x4001, &com_buff, 2);
1028 	/* Analogue input 3 left channel: */
1029 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1030 			1, 0x21, 0x0118, 0x4001, &com_buff, 2);
1031 	/* Analogue input 3 right channel: */
1032 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1033 			1, 0x21, 0x0119, 0x4001, &com_buff, 2);
1034 	/* Analogue input 4 left channel: */
1035 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1036 			1, 0x21, 0x011c, 0x4001, &com_buff, 2);
1037 	/* Analogue input 4 right channel: */
1038 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1039 			1, 0x21, 0x011d, 0x4001, &com_buff, 2);
1040 
1041 	/* Set software sends to output */
1042 	com_buff[0] = 0x00;
1043 	com_buff[1] = 0x00;
1044 	/* Analogue software return 1 left channel: */
1045 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1046 			1, 0x21, 0x0100, 0x4001, &com_buff, 2);
1047 	com_buff[0] = 0x00;
1048 	com_buff[1] = 0x80;
1049 	/* Analogue software return 1 right channel: */
1050 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1051 			1, 0x21, 0x0101, 0x4001, &com_buff, 2);
1052 	com_buff[0] = 0x00;
1053 	com_buff[1] = 0x80;
1054 	/* Analogue software return 2 left channel: */
1055 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1056 			1, 0x21, 0x0104, 0x4001, &com_buff, 2);
1057 	com_buff[0] = 0x00;
1058 	com_buff[1] = 0x00;
1059 	/* Analogue software return 2 right channel: */
1060 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1061 			1, 0x21, 0x0105, 0x4001, &com_buff, 2);
1062 
1063 	com_buff[0] = 0x00;
1064 	com_buff[1] = 0x80;
1065 	/* Analogue software return 3 left channel: */
1066 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1067 			1, 0x21, 0x0108, 0x4001, &com_buff, 2);
1068 	/* Analogue software return 3 right channel: */
1069 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1070 			1, 0x21, 0x0109, 0x4001, &com_buff, 2);
1071 	/* Analogue software return 4 left channel: */
1072 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1073 			1, 0x21, 0x010c, 0x4001, &com_buff, 2);
1074 	/* Analogue software return 4 right channel: */
1075 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1076 			1, 0x21, 0x010d, 0x4001, &com_buff, 2);
1077 
1078 	/* Return to muting sends */
1079 	com_buff[0] = 0x00;
1080 	com_buff[1] = 0x80;
1081 	/* Analogue fx return left channel: */
1082 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1083 			1, 0x21, 0x0120, 0x4001, &com_buff, 2);
1084 	/* Analogue fx return right channel: */
1085 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1086 			1, 0x21, 0x0121, 0x4001, &com_buff, 2);
1087 
1088 	/* Analogue software input 1 fx send: */
1089 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1090 			1, 0x21, 0x0100, 0x4201, &com_buff, 2);
1091 	/* Analogue software input 2 fx send: */
1092 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1093 			1, 0x21, 0x0101, 0x4201, &com_buff, 2);
1094 	/* Analogue software input 3 fx send: */
1095 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1096 			1, 0x21, 0x0102, 0x4201, &com_buff, 2);
1097 	/* Analogue software input 4 fx send: */
1098 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1099 			1, 0x21, 0x0103, 0x4201, &com_buff, 2);
1100 	/* Analogue input 1 fx send: */
1101 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1102 			1, 0x21, 0x0104, 0x4201, &com_buff, 2);
1103 	/* Analogue input 2 fx send: */
1104 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1105 			1, 0x21, 0x0105, 0x4201, &com_buff, 2);
1106 	/* Analogue input 3 fx send: */
1107 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1108 			1, 0x21, 0x0106, 0x4201, &com_buff, 2);
1109 	/* Analogue input 4 fx send: */
1110 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1111 			1, 0x21, 0x0107, 0x4201, &com_buff, 2);
1112 
1113 	/* Toggle allowing host control */
1114 	com_buff[0] = 0x02;
1115 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1116 			3, 0x21, 0x0000, 0x2001, &com_buff, 1);
1117 
1118 	/* Do not dim fx returns */
1119 	com_buff[0] = 0x00;
1120 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1121 			3, 0x21, 0x0002, 0x2001, &com_buff, 1);
1122 
1123 	/* Do not set fx returns to mono */
1124 	com_buff[0] = 0x00;
1125 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1126 			3, 0x21, 0x0001, 0x2001, &com_buff, 1);
1127 
1128 	/* Mute the S/PDIF hardware loopback
1129 	 * same odd volume logic here as above
1130 	 */
1131 	com_buff[0] = 0x00;
1132 	com_buff[1] = 0x80;
1133 	/* S/PDIF hardware input 1 left channel */
1134 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1135 			1, 0x21, 0x0112, 0x4001, &com_buff, 2);
1136 	/* S/PDIF hardware input 1 right channel */
1137 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1138 			1, 0x21, 0x0113, 0x4001, &com_buff, 2);
1139 	/* S/PDIF hardware input 2 left channel */
1140 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1141 			1, 0x21, 0x0116, 0x4001, &com_buff, 2);
1142 	/* S/PDIF hardware input 2 right channel */
1143 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1144 			1, 0x21, 0x0117, 0x4001, &com_buff, 2);
1145 	/* S/PDIF hardware input 3 left channel */
1146 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1147 			1, 0x21, 0x011a, 0x4001, &com_buff, 2);
1148 	/* S/PDIF hardware input 3 right channel */
1149 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1150 			1, 0x21, 0x011b, 0x4001, &com_buff, 2);
1151 	/* S/PDIF hardware input 4 left channel */
1152 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1153 			1, 0x21, 0x011e, 0x4001, &com_buff, 2);
1154 	/* S/PDIF hardware input 4 right channel */
1155 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1156 			1, 0x21, 0x011f, 0x4001, &com_buff, 2);
1157 	/* S/PDIF software return 1 left channel */
1158 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1159 			1, 0x21, 0x0102, 0x4001, &com_buff, 2);
1160 	/* S/PDIF software return 1 right channel */
1161 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1162 			1, 0x21, 0x0103, 0x4001, &com_buff, 2);
1163 	/* S/PDIF software return 2 left channel */
1164 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1165 			1, 0x21, 0x0106, 0x4001, &com_buff, 2);
1166 	/* S/PDIF software return 2 right channel */
1167 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1168 			1, 0x21, 0x0107, 0x4001, &com_buff, 2);
1169 
1170 	com_buff[0] = 0x00;
1171 	com_buff[1] = 0x00;
1172 	/* S/PDIF software return 3 left channel */
1173 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1174 			1, 0x21, 0x010a, 0x4001, &com_buff, 2);
1175 
1176 	com_buff[0] = 0x00;
1177 	com_buff[1] = 0x80;
1178 	/* S/PDIF software return 3 right channel */
1179 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1180 			1, 0x21, 0x010b, 0x4001, &com_buff, 2);
1181 	/* S/PDIF software return 4 left channel */
1182 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1183 			1, 0x21, 0x010e, 0x4001, &com_buff, 2);
1184 
1185 	com_buff[0] = 0x00;
1186 	com_buff[1] = 0x00;
1187 	/* S/PDIF software return 4 right channel */
1188 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1189 			1, 0x21, 0x010f, 0x4001, &com_buff, 2);
1190 
1191 	com_buff[0] = 0x00;
1192 	com_buff[1] = 0x80;
1193 	/* S/PDIF fx returns left channel */
1194 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1195 			1, 0x21, 0x0122, 0x4001, &com_buff, 2);
1196 	/* S/PDIF fx returns right channel */
1197 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1198 			1, 0x21, 0x0123, 0x4001, &com_buff, 2);
1199 
1200 	/* Set the dropdown "Effect" to the first option */
1201 	/* Room1  = 0x00 */
1202 	/* Room2  = 0x01 */
1203 	/* Room3  = 0x02 */
1204 	/* Hall 1 = 0x03 */
1205 	/* Hall 2 = 0x04 */
1206 	/* Plate  = 0x05 */
1207 	/* Delay  = 0x06 */
1208 	/* Echo   = 0x07 */
1209 	com_buff[0] = 0x00;
1210 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1211 			1, 0x21, 0x0200, 0x4301, &com_buff, 1);	/* max is 0xff */
1212 	/* min is 0x00 */
1213 
1214 
1215 	/* Set the effect duration to 0 */
1216 	/* max is 0xffff */
1217 	/* min is 0x0000 */
1218 	com_buff[0] = 0x00;
1219 	com_buff[1] = 0x00;
1220 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1221 			1, 0x21, 0x0400, 0x4301, &com_buff, 2);
1222 
1223 	/* Set the effect volume and feedback to 0 */
1224 	/* max is 0xff */
1225 	/* min is 0x00 */
1226 	com_buff[0] = 0x00;
1227 	/* feedback: */
1228 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1229 			1, 0x21, 0x0500, 0x4301, &com_buff, 1);
1230 	/* volume: */
1231 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1232 			1, 0x21, 0x0300, 0x4301, &com_buff, 1);
1233 
1234 	/* Set soft button hold duration */
1235 	/* 0x03 = 250ms */
1236 	/* 0x05 = 500ms DEFAULT */
1237 	/* 0x08 = 750ms */
1238 	/* 0x0a = 1sec */
1239 	com_buff[0] = 0x05;
1240 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1241 			3, 0x21, 0x0005, 0x2001, &com_buff, 1);
1242 
1243 	/* Use dim LEDs for button of state */
1244 	com_buff[0] = 0x00;
1245 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1246 			3, 0x21, 0x0004, 0x2001, &com_buff, 1);
1247 }
1248 
1249 #define MBOX3_DESCRIPTOR_SIZE	464
1250 
1251 static int snd_usb_mbox3_boot_quirk(struct usb_device *dev)
1252 {
1253 	struct usb_host_config *config = dev->actconfig;
1254 	int err;
1255 	int descriptor_size;
1256 
1257 	descriptor_size = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
1258 
1259 	if (descriptor_size != MBOX3_DESCRIPTOR_SIZE) {
1260 		dev_err(&dev->dev, "Invalid descriptor size=%d.\n", descriptor_size);
1261 		return -ENODEV;
1262 	}
1263 
1264 	dev_dbg(&dev->dev, "device initialised!\n");
1265 
1266 	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
1267 		&dev->descriptor, sizeof(dev->descriptor));
1268 	config = dev->actconfig;
1269 	if (err < 0)
1270 		dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
1271 
1272 	err = usb_reset_configuration(dev);
1273 	if (err < 0)
1274 		dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
1275 	dev_dbg(&dev->dev, "mbox3_boot: new boot length = %d\n",
1276 		le16_to_cpu(get_cfg_desc(config)->wTotalLength));
1277 
1278 	mbox3_setup_48_24_magic(dev);
1279 	dev_info(&dev->dev, "Digidesign Mbox 3: 24bit 48kHz");
1280 
1281 	return 0; /* Successful boot */
1282 }
1283 
1284 #define MICROBOOK_BUF_SIZE 128
1285 
1286 static int snd_usb_motu_microbookii_communicate(struct usb_device *dev, u8 *buf,
1287 						int buf_size, int *length)
1288 {
1289 	int err, actual_length;
1290 
1291 	if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x01)))
1292 		return -EINVAL;
1293 	err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x01), buf, *length,
1294 				&actual_length, 1000);
1295 	if (err < 0)
1296 		return err;
1297 
1298 	print_hex_dump(KERN_DEBUG, "MicroBookII snd: ", DUMP_PREFIX_NONE, 16, 1,
1299 		       buf, actual_length, false);
1300 
1301 	memset(buf, 0, buf_size);
1302 
1303 	if (usb_pipe_type_check(dev, usb_rcvintpipe(dev, 0x82)))
1304 		return -EINVAL;
1305 	err = usb_interrupt_msg(dev, usb_rcvintpipe(dev, 0x82), buf, buf_size,
1306 				&actual_length, 1000);
1307 	if (err < 0)
1308 		return err;
1309 
1310 	print_hex_dump(KERN_DEBUG, "MicroBookII rcv: ", DUMP_PREFIX_NONE, 16, 1,
1311 		       buf, actual_length, false);
1312 
1313 	*length = actual_length;
1314 	return 0;
1315 }
1316 
1317 static int snd_usb_motu_microbookii_boot_quirk(struct usb_device *dev)
1318 {
1319 	int err, actual_length, poll_attempts = 0;
1320 	static const u8 set_samplerate_seq[] = { 0x00, 0x00, 0x00, 0x00,
1321 						 0x00, 0x00, 0x0b, 0x14,
1322 						 0x00, 0x00, 0x00, 0x01 };
1323 	static const u8 poll_ready_seq[] = { 0x00, 0x04, 0x00, 0x00,
1324 					     0x00, 0x00, 0x0b, 0x18 };
1325 	u8 *buf = kzalloc(MICROBOOK_BUF_SIZE, GFP_KERNEL);
1326 
1327 	if (!buf)
1328 		return -ENOMEM;
1329 
1330 	dev_info(&dev->dev, "Waiting for MOTU Microbook II to boot up...\n");
1331 
1332 	/* First we tell the device which sample rate to use. */
1333 	memcpy(buf, set_samplerate_seq, sizeof(set_samplerate_seq));
1334 	actual_length = sizeof(set_samplerate_seq);
1335 	err = snd_usb_motu_microbookii_communicate(dev, buf, MICROBOOK_BUF_SIZE,
1336 						   &actual_length);
1337 
1338 	if (err < 0) {
1339 		dev_err(&dev->dev,
1340 			"failed setting the sample rate for Motu MicroBook II: %d\n",
1341 			err);
1342 		goto free_buf;
1343 	}
1344 
1345 	/* Then we poll every 100 ms until the device informs of its readiness. */
1346 	while (true) {
1347 		if (++poll_attempts > 100) {
1348 			dev_err(&dev->dev,
1349 				"failed booting Motu MicroBook II: timeout\n");
1350 			err = -ENODEV;
1351 			goto free_buf;
1352 		}
1353 
1354 		memset(buf, 0, MICROBOOK_BUF_SIZE);
1355 		memcpy(buf, poll_ready_seq, sizeof(poll_ready_seq));
1356 
1357 		actual_length = sizeof(poll_ready_seq);
1358 		err = snd_usb_motu_microbookii_communicate(
1359 			dev, buf, MICROBOOK_BUF_SIZE, &actual_length);
1360 		if (err < 0) {
1361 			dev_err(&dev->dev,
1362 				"failed booting Motu MicroBook II: communication error %d\n",
1363 				err);
1364 			goto free_buf;
1365 		}
1366 
1367 		/* the device signals its readiness through a message of the
1368 		 * form
1369 		 *           XX 06 00 00 00 00 0b 18  00 00 00 01
1370 		 * If the device is not yet ready to accept audio data, the
1371 		 * last byte of that sequence is 00.
1372 		 */
1373 		if (actual_length == 12 && buf[actual_length - 1] == 1)
1374 			break;
1375 
1376 		msleep(100);
1377 	}
1378 
1379 	dev_info(&dev->dev, "MOTU MicroBook II ready\n");
1380 
1381 free_buf:
1382 	kfree(buf);
1383 	return err;
1384 }
1385 
1386 static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev)
1387 {
1388 	msleep(2000);
1389 
1390 	return 0;
1391 }
1392 
1393 /*
1394  * Setup quirks
1395  */
1396 #define MAUDIO_SET		0x01 /* parse device_setup */
1397 #define MAUDIO_SET_COMPATIBLE	0x80 /* use only "win-compatible" interfaces */
1398 #define MAUDIO_SET_DTS		0x02 /* enable DTS Digital Output */
1399 #define MAUDIO_SET_96K		0x04 /* 48-96kHz rate if set, 8-48kHz otherwise */
1400 #define MAUDIO_SET_24B		0x08 /* 24bits sample if set, 16bits otherwise */
1401 #define MAUDIO_SET_DI		0x10 /* enable Digital Input */
1402 #define MAUDIO_SET_MASK		0x1f /* bit mask for setup value */
1403 #define MAUDIO_SET_24B_48K_DI	 0x19 /* 24bits+48kHz+Digital Input */
1404 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48kHz+No Digital Input */
1405 #define MAUDIO_SET_16B_48K_DI	 0x11 /* 16bits+48kHz+Digital Input */
1406 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48kHz+No Digital Input */
1407 
1408 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
1409 				      int iface, int altno)
1410 {
1411 	/* Reset ALL ifaces to 0 altsetting.
1412 	 * Call it for every possible altsetting of every interface.
1413 	 */
1414 	usb_set_interface(chip->dev, iface, 0);
1415 	if (chip->setup & MAUDIO_SET) {
1416 		if (chip->setup & MAUDIO_SET_COMPATIBLE) {
1417 			if (iface != 1 && iface != 2)
1418 				return 1; /* skip all interfaces but 1 and 2 */
1419 		} else {
1420 			unsigned int mask;
1421 			if (iface == 1 || iface == 2)
1422 				return 1; /* skip interfaces 1 and 2 */
1423 			if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1424 				return 1; /* skip this altsetting */
1425 			mask = chip->setup & MAUDIO_SET_MASK;
1426 			if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1427 				return 1; /* skip this altsetting */
1428 			if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1429 				return 1; /* skip this altsetting */
1430 			if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
1431 				return 1; /* skip this altsetting */
1432 		}
1433 	}
1434 	usb_audio_dbg(chip,
1435 		    "using altsetting %d for interface %d config %d\n",
1436 		    altno, iface, chip->setup);
1437 	return 0; /* keep this altsetting */
1438 }
1439 
1440 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
1441 					 int iface,
1442 					 int altno)
1443 {
1444 	/* Reset ALL ifaces to 0 altsetting.
1445 	 * Call it for every possible altsetting of every interface.
1446 	 */
1447 	usb_set_interface(chip->dev, iface, 0);
1448 
1449 	if (chip->setup & MAUDIO_SET) {
1450 		unsigned int mask;
1451 		if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
1452 			return 1; /* skip this altsetting */
1453 		if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1454 			return 1; /* skip this altsetting */
1455 		mask = chip->setup & MAUDIO_SET_MASK;
1456 		if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1457 			return 1; /* skip this altsetting */
1458 		if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1459 			return 1; /* skip this altsetting */
1460 		if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
1461 			return 1; /* skip this altsetting */
1462 		if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
1463 			return 1; /* skip this altsetting */
1464 	}
1465 
1466 	return 0; /* keep this altsetting */
1467 }
1468 
1469 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
1470 					   int iface, int altno)
1471 {
1472 	/* Reset ALL ifaces to 0 altsetting.
1473 	 * Call it for every possible altsetting of every interface.
1474 	 */
1475 	usb_set_interface(chip->dev, iface, 0);
1476 
1477 	/* possible configuration where both inputs and only one output is
1478 	 *used is not supported by the current setup
1479 	 */
1480 	if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
1481 		if (chip->setup & MAUDIO_SET_96K) {
1482 			if (altno != 3 && altno != 6)
1483 				return 1;
1484 		} else if (chip->setup & MAUDIO_SET_DI) {
1485 			if (iface == 4)
1486 				return 1; /* no analog input */
1487 			if (altno != 2 && altno != 5)
1488 				return 1; /* enable only altsets 2 and 5 */
1489 		} else {
1490 			if (iface == 5)
1491 				return 1; /* disable digialt input */
1492 			if (altno != 2 && altno != 5)
1493 				return 1; /* enalbe only altsets 2 and 5 */
1494 		}
1495 	} else {
1496 		/* keep only 16-Bit mode */
1497 		if (altno != 1)
1498 			return 1;
1499 	}
1500 
1501 	usb_audio_dbg(chip,
1502 		    "using altsetting %d for interface %d config %d\n",
1503 		    altno, iface, chip->setup);
1504 	return 0; /* keep this altsetting */
1505 }
1506 
1507 static int s1810c_skip_setting_quirk(struct snd_usb_audio *chip,
1508 					   int iface, int altno)
1509 {
1510 	/*
1511 	 * Altno settings:
1512 	 *
1513 	 * Playback (Interface 1):
1514 	 * 1: 6 Analog + 2 S/PDIF
1515 	 * 2: 6 Analog + 2 S/PDIF
1516 	 * 3: 6 Analog
1517 	 *
1518 	 * Capture (Interface 2):
1519 	 * 1: 8 Analog + 2 S/PDIF + 8 ADAT
1520 	 * 2: 8 Analog + 2 S/PDIF + 4 ADAT
1521 	 * 3: 8 Analog
1522 	 */
1523 
1524 	/*
1525 	 * I'll leave 2 as the default one and
1526 	 * use device_setup to switch to the
1527 	 * other two.
1528 	 */
1529 	if ((chip->setup == 0 || chip->setup > 2) && altno != 2)
1530 		return 1;
1531 	else if (chip->setup == 1 && altno != 1)
1532 		return 1;
1533 	else if (chip->setup == 2 && altno != 3)
1534 		return 1;
1535 
1536 	return 0;
1537 }
1538 
1539 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
1540 				  int iface,
1541 				  int altno)
1542 {
1543 	/* audiophile usb: skip altsets incompatible with device_setup */
1544 	if (chip->usb_id == USB_ID(0x0763, 0x2003))
1545 		return audiophile_skip_setting_quirk(chip, iface, altno);
1546 	/* quattro usb: skip altsets incompatible with device_setup */
1547 	if (chip->usb_id == USB_ID(0x0763, 0x2001))
1548 		return quattro_skip_setting_quirk(chip, iface, altno);
1549 	/* fasttrackpro usb: skip altsets incompatible with device_setup */
1550 	if (chip->usb_id == USB_ID(0x0763, 0x2012))
1551 		return fasttrackpro_skip_setting_quirk(chip, iface, altno);
1552 	/* presonus studio 1810c: skip altsets incompatible with device_setup */
1553 	if (chip->usb_id == USB_ID(0x194f, 0x010c))
1554 		return s1810c_skip_setting_quirk(chip, iface, altno);
1555 
1556 
1557 	return 0;
1558 }
1559 
1560 int snd_usb_apply_boot_quirk(struct usb_device *dev,
1561 			     struct usb_interface *intf,
1562 			     const struct snd_usb_audio_quirk *quirk,
1563 			     unsigned int id)
1564 {
1565 	switch (id) {
1566 	case USB_ID(0x041e, 0x3000):
1567 		/* SB Extigy needs special boot-up sequence */
1568 		/* if more models come, this will go to the quirk list. */
1569 		return snd_usb_extigy_boot_quirk(dev, intf);
1570 
1571 	case USB_ID(0x041e, 0x3020):
1572 		/* SB Audigy 2 NX needs its own boot-up magic, too */
1573 		return snd_usb_audigy2nx_boot_quirk(dev);
1574 
1575 	case USB_ID(0x10f5, 0x0200):
1576 		/* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
1577 		return snd_usb_cm106_boot_quirk(dev);
1578 
1579 	case USB_ID(0x0d8c, 0x0102):
1580 		/* C-Media CM6206 / CM106-Like Sound Device */
1581 	case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
1582 		return snd_usb_cm6206_boot_quirk(dev);
1583 
1584 	case USB_ID(0x0dba, 0x3000):
1585 		/* Digidesign Mbox 2 */
1586 		return snd_usb_mbox2_boot_quirk(dev);
1587 	case USB_ID(0x0dba, 0x5000):
1588 		/* Digidesign Mbox 3 */
1589 		return snd_usb_mbox3_boot_quirk(dev);
1590 
1591 
1592 	case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
1593 	case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
1594 		return snd_usb_novation_boot_quirk(dev);
1595 
1596 	case USB_ID(0x133e, 0x0815):
1597 		/* Access Music VirusTI Desktop */
1598 		return snd_usb_accessmusic_boot_quirk(dev);
1599 
1600 	case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
1601 	case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
1602 	case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
1603 		return snd_usb_nativeinstruments_boot_quirk(dev);
1604 	case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
1605 		return snd_usb_fasttrackpro_boot_quirk(dev);
1606 	case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
1607 		return snd_usb_gamecon780_boot_quirk(dev);
1608 	case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */
1609 		return snd_usb_axefx3_boot_quirk(dev);
1610 	case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook II */
1611 		/*
1612 		 * For some reason interface 3 with vendor-spec class is
1613 		 * detected on MicroBook IIc.
1614 		 */
1615 		if (get_iface_desc(intf->altsetting)->bInterfaceClass ==
1616 		    USB_CLASS_VENDOR_SPEC &&
1617 		    get_iface_desc(intf->altsetting)->bInterfaceNumber < 3)
1618 			return snd_usb_motu_microbookii_boot_quirk(dev);
1619 		break;
1620 	}
1621 
1622 	return 0;
1623 }
1624 
1625 int snd_usb_apply_boot_quirk_once(struct usb_device *dev,
1626 				  struct usb_interface *intf,
1627 				  const struct snd_usb_audio_quirk *quirk,
1628 				  unsigned int id)
1629 {
1630 	switch (id) {
1631 	case USB_ID(0x07fd, 0x0008): /* MOTU M Series */
1632 		return snd_usb_motu_m_series_boot_quirk(dev);
1633 	}
1634 
1635 	return 0;
1636 }
1637 
1638 /*
1639  * check if the device uses big-endian samples
1640  */
1641 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip,
1642 				 const struct audioformat *fp)
1643 {
1644 	/* it depends on altsetting whether the device is big-endian or not */
1645 	switch (chip->usb_id) {
1646 	case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
1647 		if (fp->altsetting == 2 || fp->altsetting == 3 ||
1648 			fp->altsetting == 5 || fp->altsetting == 6)
1649 			return 1;
1650 		break;
1651 	case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1652 		if (chip->setup == 0x00 ||
1653 			fp->altsetting == 1 || fp->altsetting == 2 ||
1654 			fp->altsetting == 3)
1655 			return 1;
1656 		break;
1657 	case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1658 		if (fp->altsetting == 2 || fp->altsetting == 3 ||
1659 			fp->altsetting == 5 || fp->altsetting == 6)
1660 			return 1;
1661 		break;
1662 	}
1663 	return 0;
1664 }
1665 
1666 /*
1667  * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
1668  * not for interface.
1669  */
1670 
1671 enum {
1672 	EMU_QUIRK_SR_44100HZ = 0,
1673 	EMU_QUIRK_SR_48000HZ,
1674 	EMU_QUIRK_SR_88200HZ,
1675 	EMU_QUIRK_SR_96000HZ,
1676 	EMU_QUIRK_SR_176400HZ,
1677 	EMU_QUIRK_SR_192000HZ
1678 };
1679 
1680 static void set_format_emu_quirk(struct snd_usb_substream *subs,
1681 				 const struct audioformat *fmt)
1682 {
1683 	unsigned char emu_samplerate_id = 0;
1684 
1685 	/* When capture is active
1686 	 * sample rate shouldn't be changed
1687 	 * by playback substream
1688 	 */
1689 	if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1690 		if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].cur_audiofmt)
1691 			return;
1692 	}
1693 
1694 	switch (fmt->rate_min) {
1695 	case 48000:
1696 		emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1697 		break;
1698 	case 88200:
1699 		emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1700 		break;
1701 	case 96000:
1702 		emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1703 		break;
1704 	case 176400:
1705 		emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1706 		break;
1707 	case 192000:
1708 		emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1709 		break;
1710 	default:
1711 		emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1712 		break;
1713 	}
1714 	snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1715 	subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
1716 }
1717 
1718 static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs,
1719 					u16 windex)
1720 {
1721 	unsigned int cur_rate = subs->data_endpoint->cur_rate;
1722 	u8 sr[3];
1723 	// Convert to little endian
1724 	sr[0] = cur_rate & 0xff;
1725 	sr[1] = (cur_rate >> 8) & 0xff;
1726 	sr[2] = (cur_rate >> 16) & 0xff;
1727 	usb_set_interface(subs->dev, 0, 1);
1728 	// we should derive windex from fmt-sync_ep but it's not set
1729 	snd_usb_ctl_msg(subs->stream->chip->dev,
1730 		usb_sndctrlpipe(subs->stream->chip->dev, 0),
1731 		0x01, 0x22, 0x0100, windex, &sr, 0x0003);
1732 	return 0;
1733 }
1734 
1735 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1736 			      const struct audioformat *fmt)
1737 {
1738 	switch (subs->stream->chip->usb_id) {
1739 	case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1740 	case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1741 	case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1742 	case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
1743 		set_format_emu_quirk(subs, fmt);
1744 		break;
1745 	case USB_ID(0x534d, 0x0021): /* MacroSilicon MS2100/MS2106 */
1746 	case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */
1747 		subs->stream_offset_adj = 2;
1748 		break;
1749 	case USB_ID(0x2b73, 0x0013): /* Pioneer DJM-450 */
1750 		pioneer_djm_set_format_quirk(subs, 0x0082);
1751 		break;
1752 	case USB_ID(0x08e4, 0x017f): /* Pioneer DJM-750 */
1753 	case USB_ID(0x08e4, 0x0163): /* Pioneer DJM-850 */
1754 		pioneer_djm_set_format_quirk(subs, 0x0086);
1755 		break;
1756 	}
1757 }
1758 
1759 int snd_usb_select_mode_quirk(struct snd_usb_audio *chip,
1760 			      const struct audioformat *fmt)
1761 {
1762 	struct usb_device *dev = chip->dev;
1763 	int err;
1764 
1765 	if (chip->quirk_flags & QUIRK_FLAG_ITF_USB_DSD_DAC) {
1766 		/* First switch to alt set 0, otherwise the mode switch cmd
1767 		 * will not be accepted by the DAC
1768 		 */
1769 		err = usb_set_interface(dev, fmt->iface, 0);
1770 		if (err < 0)
1771 			return err;
1772 
1773 		msleep(20); /* Delay needed after setting the interface */
1774 
1775 		/* Vendor mode switch cmd is required. */
1776 		if (fmt->formats & SNDRV_PCM_FMTBIT_DSD_U32_BE) {
1777 			/* DSD mode (DSD_U32) requested */
1778 			err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1779 					      USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1780 					      1, 1, NULL, 0);
1781 			if (err < 0)
1782 				return err;
1783 
1784 		} else {
1785 			/* PCM or DOP mode (S32) requested */
1786 			/* PCM mode (S16) requested */
1787 			err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1788 					      USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1789 					      0, 1, NULL, 0);
1790 			if (err < 0)
1791 				return err;
1792 
1793 		}
1794 		msleep(20);
1795 	}
1796 	return 0;
1797 }
1798 
1799 void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1800 {
1801 	/*
1802 	 * "Playback Design" products send bogus feedback data at the start
1803 	 * of the stream. Ignore them.
1804 	 */
1805 	if (USB_ID_VENDOR(ep->chip->usb_id) == 0x23ba &&
1806 	    ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1807 		ep->skip_packets = 4;
1808 
1809 	/*
1810 	 * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1811 	 * world latency varies by approx. +/- 50 frames (at 96kHz) each time
1812 	 * the stream is (re)started. When skipping packets 16 at endpoint
1813 	 * start up, the real world latency is stable within +/- 1 frame (also
1814 	 * across power cycles).
1815 	 */
1816 	if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1817 	     ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
1818 	    ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1819 		ep->skip_packets = 16;
1820 
1821 	/* Work around devices that report unreasonable feedback data */
1822 	if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) ||  /* TEAC UD-H01 */
1823 	     ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
1824 	    ep->syncmaxsize == 4)
1825 		ep->tenor_fb_quirk = 1;
1826 }
1827 
1828 /* quirk applied after snd_usb_ctl_msg(); not applied during boot quirks */
1829 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1830 			   __u8 request, __u8 requesttype, __u16 value,
1831 			   __u16 index, void *data, __u16 size)
1832 {
1833 	struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1834 
1835 	if (!chip || (requesttype & USB_TYPE_MASK) != USB_TYPE_CLASS)
1836 		return;
1837 
1838 	if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY)
1839 		msleep(20);
1840 	else if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY_1M)
1841 		usleep_range(1000, 2000);
1842 	else if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY_5M)
1843 		usleep_range(5000, 6000);
1844 }
1845 
1846 /*
1847  * snd_usb_interface_dsd_format_quirks() is called from format.c to
1848  * augment the PCM format bit-field for DSD types. The UAC standards
1849  * don't have a designated bit field to denote DSD-capable interfaces,
1850  * hence all hardware that is known to support this format has to be
1851  * listed here.
1852  */
1853 u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1854 					struct audioformat *fp,
1855 					unsigned int sample_bytes)
1856 {
1857 	struct usb_interface *iface;
1858 
1859 	/* Playback Designs */
1860 	if (USB_ID_VENDOR(chip->usb_id) == 0x23ba &&
1861 	    USB_ID_PRODUCT(chip->usb_id) < 0x0110) {
1862 		switch (fp->altsetting) {
1863 		case 1:
1864 			fp->dsd_dop = true;
1865 			return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1866 		case 2:
1867 			fp->dsd_bitrev = true;
1868 			return SNDRV_PCM_FMTBIT_DSD_U8;
1869 		case 3:
1870 			fp->dsd_bitrev = true;
1871 			return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1872 		}
1873 	}
1874 
1875 	/* XMOS based USB DACs */
1876 	switch (chip->usb_id) {
1877 	case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */
1878 	case USB_ID(0x21ed, 0xd75a): /* Accuphase DAC-60 option card */
1879 	case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */
1880 	case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
1881 		if (fp->altsetting == 2)
1882 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1883 		break;
1884 
1885 	case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
1886 	case USB_ID(0x10cb, 0x0103): /* The Bit Opus #3; with fp->dsd_raw */
1887 	case USB_ID(0x16d0, 0x06b2): /* NuPrime DAC-10 */
1888 	case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */
1889 	case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */
1890 	case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */
1891 	case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */
1892 	case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */
1893 	case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */
1894 	case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
1895 	case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */
1896 	case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */
1897 	case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */
1898 	case USB_ID(0x6b42, 0x0042): /* MSB Technology */
1899 		if (fp->altsetting == 3)
1900 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1901 		break;
1902 
1903 	/* Amanero Combo384 USB based DACs with native DSD support */
1904 	case USB_ID(0x16d0, 0x071a):  /* Amanero - Combo384 */
1905 	case USB_ID(0x2ab6, 0x0004):  /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */
1906 	case USB_ID(0x2ab6, 0x0005):  /* T+A USB HD Audio 1 */
1907 	case USB_ID(0x2ab6, 0x0006):  /* T+A USB HD Audio 2 */
1908 		if (fp->altsetting == 2) {
1909 			switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
1910 			case 0x199:
1911 				return SNDRV_PCM_FMTBIT_DSD_U32_LE;
1912 			case 0x19b:
1913 			case 0x203:
1914 				return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1915 			default:
1916 				break;
1917 			}
1918 		}
1919 		break;
1920 	case USB_ID(0x16d0, 0x0a23):
1921 		if (fp->altsetting == 2)
1922 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1923 		break;
1924 
1925 	default:
1926 		break;
1927 	}
1928 
1929 	/* ITF-USB DSD based DACs */
1930 	if (chip->quirk_flags & QUIRK_FLAG_ITF_USB_DSD_DAC) {
1931 		iface = usb_ifnum_to_if(chip->dev, fp->iface);
1932 
1933 		/* Altsetting 2 support native DSD if the num of altsets is
1934 		 * three (0-2),
1935 		 * Altsetting 3 support native DSD if the num of altsets is
1936 		 * four (0-3).
1937 		 */
1938 		if (fp->altsetting == iface->num_altsetting - 1)
1939 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1940 	}
1941 
1942 	/* Mostly generic method to detect many DSD-capable implementations */
1943 	if ((chip->quirk_flags & QUIRK_FLAG_DSD_RAW) && fp->dsd_raw)
1944 		return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1945 
1946 	return 0;
1947 }
1948 
1949 void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
1950 					  struct audioformat *fp,
1951 					  int stream)
1952 {
1953 	switch (chip->usb_id) {
1954 	case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
1955 		/* Optoplay sets the sample rate attribute although
1956 		 * it seems not supporting it in fact.
1957 		 */
1958 		fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
1959 		break;
1960 	case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
1961 	case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1962 		/* doesn't set the sample rate attribute, but supports it */
1963 		fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
1964 		break;
1965 	case USB_ID(0x0763, 0x2001):  /* M-Audio Quattro USB */
1966 	case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
1967 	case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
1968 	case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
1969 					an older model 77d:223) */
1970 	/*
1971 	 * plantronics headset and Griffin iMic have set adaptive-in
1972 	 * although it's really not...
1973 	 */
1974 		fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
1975 		if (stream == SNDRV_PCM_STREAM_PLAYBACK)
1976 			fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
1977 		else
1978 			fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
1979 		break;
1980 	case USB_ID(0x07fd, 0x0004):  /* MOTU MicroBook IIc */
1981 		/*
1982 		 * MaxPacketsOnly attribute is erroneously set in endpoint
1983 		 * descriptors. As a result this card produces noise with
1984 		 * all sample rates other than 96 kHz.
1985 		 */
1986 		fp->attributes &= ~UAC_EP_CS_ATTR_FILL_MAX;
1987 		break;
1988 	case USB_ID(0x1224, 0x2a25):  /* Jieli Technology USB PHY 2.0 */
1989 		/* mic works only when ep packet size is set to wMaxPacketSize */
1990 		fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX;
1991 		break;
1992 
1993 	}
1994 }
1995 
1996 /*
1997  * driver behavior quirk flags
1998  */
1999 struct usb_audio_quirk_flags_table {
2000 	u32 id;
2001 	u32 flags;
2002 };
2003 
2004 #define DEVICE_FLG(vid, pid, _flags) \
2005 	{ .id = USB_ID(vid, pid), .flags = (_flags) }
2006 #define VENDOR_FLG(vid, _flags) DEVICE_FLG(vid, 0, _flags)
2007 
2008 static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
2009 	/* Device matches */
2010 	DEVICE_FLG(0x041e, 0x3000, /* Creative SB Extigy */
2011 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2012 	DEVICE_FLG(0x041e, 0x4080, /* Creative Live Cam VF0610 */
2013 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2014 	DEVICE_FLG(0x046d, 0x084c, /* Logitech ConferenceCam Connect */
2015 		   QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY_1M),
2016 	DEVICE_FLG(0x046d, 0x0991, /* Logitech QuickCam Pro */
2017 		   QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_IGNORE_CTL_ERROR),
2018 	DEVICE_FLG(0x046d, 0x09a4, /* Logitech QuickCam E 3500 */
2019 		   QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_IGNORE_CTL_ERROR),
2020 	DEVICE_FLG(0x0499, 0x1509, /* Steinberg UR22 */
2021 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2022 	DEVICE_FLG(0x04d8, 0xfeea, /* Benchmark DAC1 Pre */
2023 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2024 	DEVICE_FLG(0x04e8, 0xa051, /* Samsung USBC Headset (AKG) */
2025 		   QUIRK_FLAG_SKIP_CLOCK_SELECTOR | QUIRK_FLAG_CTL_MSG_DELAY_5M),
2026 	DEVICE_FLG(0x054c, 0x0b8c, /* Sony WALKMAN NW-A45 DAC */
2027 		   QUIRK_FLAG_SET_IFACE_FIRST),
2028 	DEVICE_FLG(0x0556, 0x0014, /* Phoenix Audio TMX320VC */
2029 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2030 	DEVICE_FLG(0x05a3, 0x9420, /* ELP HD USB Camera */
2031 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2032 	DEVICE_FLG(0x05a7, 0x1020, /* Bose Companion 5 */
2033 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2034 	DEVICE_FLG(0x05e1, 0x0408, /* Syntek STK1160 */
2035 		   QUIRK_FLAG_ALIGN_TRANSFER),
2036 	DEVICE_FLG(0x05e1, 0x0480, /* Hauppauge Woodbury */
2037 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2038 	DEVICE_FLG(0x0644, 0x8043, /* TEAC UD-501/UD-501V2/UD-503/NT-503 */
2039 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY |
2040 		   QUIRK_FLAG_IFACE_DELAY),
2041 	DEVICE_FLG(0x0644, 0x8044, /* Esoteric D-05X */
2042 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY |
2043 		   QUIRK_FLAG_IFACE_DELAY),
2044 	DEVICE_FLG(0x0644, 0x804a, /* TEAC UD-301 */
2045 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY |
2046 		   QUIRK_FLAG_IFACE_DELAY),
2047 	DEVICE_FLG(0x0644, 0x805f, /* TEAC Model 12 */
2048 		   QUIRK_FLAG_FORCE_IFACE_RESET),
2049 	DEVICE_FLG(0x06f8, 0xb000, /* Hercules DJ Console (Windows Edition) */
2050 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2051 	DEVICE_FLG(0x06f8, 0xd002, /* Hercules DJ Console (Macintosh Edition) */
2052 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2053 	DEVICE_FLG(0x0711, 0x5800, /* MCT Trigger 5 USB-to-HDMI */
2054 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2055 	DEVICE_FLG(0x074d, 0x3553, /* Outlaw RR2150 (Micronas UAC3553B) */
2056 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2057 	DEVICE_FLG(0x0763, 0x2030, /* M-Audio Fast Track C400 */
2058 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2059 	DEVICE_FLG(0x0763, 0x2031, /* M-Audio Fast Track C600 */
2060 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2061 	DEVICE_FLG(0x08bb, 0x2702, /* LineX FM Transmitter */
2062 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2063 	DEVICE_FLG(0x0951, 0x16ad, /* Kingston HyperX */
2064 		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
2065 	DEVICE_FLG(0x0b0e, 0x0349, /* Jabra 550a */
2066 		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
2067 	DEVICE_FLG(0x0fd9, 0x0008, /* Hauppauge HVR-950Q */
2068 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2069 	DEVICE_FLG(0x1395, 0x740a, /* Sennheiser DECT */
2070 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2071 	DEVICE_FLG(0x1397, 0x0507, /* Behringer UMC202HD */
2072 		   QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2073 	DEVICE_FLG(0x1397, 0x0508, /* Behringer UMC204HD */
2074 		   QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2075 	DEVICE_FLG(0x1397, 0x0509, /* Behringer UMC404HD */
2076 		   QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2077 	DEVICE_FLG(0x13e5, 0x0001, /* Serato Phono */
2078 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2079 	DEVICE_FLG(0x154e, 0x1002, /* Denon DCD-1500RE */
2080 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2081 	DEVICE_FLG(0x154e, 0x1003, /* Denon DA-300USB */
2082 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2083 	DEVICE_FLG(0x154e, 0x3005, /* Marantz HD-DAC1 */
2084 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2085 	DEVICE_FLG(0x154e, 0x3006, /* Marantz SA-14S1 */
2086 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2087 	DEVICE_FLG(0x154e, 0x500e, /* Denon DN-X1600 */
2088 		   QUIRK_FLAG_IGNORE_CLOCK_SOURCE),
2089 	DEVICE_FLG(0x1686, 0x00dd, /* Zoom R16/24 */
2090 		   QUIRK_FLAG_TX_LENGTH | QUIRK_FLAG_CTL_MSG_DELAY_1M),
2091 	DEVICE_FLG(0x17aa, 0x1046, /* Lenovo ThinkStation P620 Rear Line-in, Line-out and Microphone */
2092 		   QUIRK_FLAG_DISABLE_AUTOSUSPEND),
2093 	DEVICE_FLG(0x17aa, 0x104d, /* Lenovo ThinkStation P620 Internal Speaker + Front Headset */
2094 		   QUIRK_FLAG_DISABLE_AUTOSUSPEND),
2095 	DEVICE_FLG(0x1852, 0x5065, /* Luxman DA-06 */
2096 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2097 	DEVICE_FLG(0x1901, 0x0191, /* GE B850V3 CP2114 audio interface */
2098 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2099 	DEVICE_FLG(0x2040, 0x7200, /* Hauppauge HVR-950Q */
2100 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2101 	DEVICE_FLG(0x2040, 0x7201, /* Hauppauge HVR-950Q-MXL */
2102 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2103 	DEVICE_FLG(0x2040, 0x7210, /* Hauppauge HVR-950Q */
2104 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2105 	DEVICE_FLG(0x2040, 0x7211, /* Hauppauge HVR-950Q-MXL */
2106 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2107 	DEVICE_FLG(0x2040, 0x7213, /* Hauppauge HVR-950Q */
2108 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2109 	DEVICE_FLG(0x2040, 0x7217, /* Hauppauge HVR-950Q */
2110 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2111 	DEVICE_FLG(0x2040, 0x721b, /* Hauppauge HVR-950Q */
2112 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2113 	DEVICE_FLG(0x2040, 0x721e, /* Hauppauge HVR-950Q */
2114 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2115 	DEVICE_FLG(0x2040, 0x721f, /* Hauppauge HVR-950Q */
2116 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2117 	DEVICE_FLG(0x2040, 0x7240, /* Hauppauge HVR-850 */
2118 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2119 	DEVICE_FLG(0x2040, 0x7260, /* Hauppauge HVR-950Q */
2120 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2121 	DEVICE_FLG(0x2040, 0x7270, /* Hauppauge HVR-950Q */
2122 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2123 	DEVICE_FLG(0x2040, 0x7280, /* Hauppauge HVR-950Q */
2124 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2125 	DEVICE_FLG(0x2040, 0x7281, /* Hauppauge HVR-950Q-MXL */
2126 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2127 	DEVICE_FLG(0x2040, 0x8200, /* Hauppauge Woodbury */
2128 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2129 	DEVICE_FLG(0x21b4, 0x0081, /* AudioQuest DragonFly */
2130 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2131 	DEVICE_FLG(0x2522, 0x0007, /* LH Labs Geek Out HD Audio 1V5 */
2132 		   QUIRK_FLAG_SET_IFACE_FIRST),
2133 	DEVICE_FLG(0x2708, 0x0002, /* Audient iD14 */
2134 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2135 	DEVICE_FLG(0x2912, 0x30c8, /* Audioengine D1 */
2136 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2137 	DEVICE_FLG(0x30be, 0x0101, /* Schiit Hel */
2138 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2139 	DEVICE_FLG(0x413c, 0xa506, /* Dell AE515 sound bar */
2140 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2141 	DEVICE_FLG(0x534d, 0x0021, /* MacroSilicon MS2100/MS2106 */
2142 		   QUIRK_FLAG_ALIGN_TRANSFER),
2143 	DEVICE_FLG(0x534d, 0x2109, /* MacroSilicon MS2109 */
2144 		   QUIRK_FLAG_ALIGN_TRANSFER),
2145 	DEVICE_FLG(0x1224, 0x2a25, /* Jieli Technology USB PHY 2.0 */
2146 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2147 	DEVICE_FLG(0x2b53, 0x0023, /* Fiero SC-01 (firmware v1.0.0 @ 48 kHz) */
2148 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2149 	DEVICE_FLG(0x2b53, 0x0024, /* Fiero SC-01 (firmware v1.0.0 @ 96 kHz) */
2150 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2151 	DEVICE_FLG(0x2b53, 0x0031, /* Fiero SC-01 (firmware v1.1.0) */
2152 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2153 	DEVICE_FLG(0x0525, 0xa4ad, /* Hamedal C20 usb camero */
2154 		   QUIRK_FLAG_IFACE_SKIP_CLOSE),
2155 	DEVICE_FLG(0x0ecb, 0x205c, /* JBL Quantum610 Wireless */
2156 		   QUIRK_FLAG_FIXED_RATE),
2157 	DEVICE_FLG(0x0ecb, 0x2069, /* JBL Quantum810 Wireless */
2158 		   QUIRK_FLAG_FIXED_RATE),
2159 
2160 	/* Vendor matches */
2161 	VENDOR_FLG(0x045e, /* MS Lifecam */
2162 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2163 	VENDOR_FLG(0x046d, /* Logitech */
2164 		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
2165 	VENDOR_FLG(0x047f, /* Plantronics */
2166 		   QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY),
2167 	VENDOR_FLG(0x0644, /* TEAC Corp. */
2168 		   QUIRK_FLAG_CTL_MSG_DELAY | QUIRK_FLAG_IFACE_DELAY),
2169 	VENDOR_FLG(0x07fd, /* MOTU */
2170 		   QUIRK_FLAG_VALIDATE_RATES),
2171 	VENDOR_FLG(0x1235, /* Focusrite Novation */
2172 		   QUIRK_FLAG_VALIDATE_RATES),
2173 	VENDOR_FLG(0x152a, /* Thesycon devices */
2174 		   QUIRK_FLAG_DSD_RAW),
2175 	VENDOR_FLG(0x1de7, /* Phoenix Audio */
2176 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2177 	VENDOR_FLG(0x20b1, /* XMOS based devices */
2178 		   QUIRK_FLAG_DSD_RAW),
2179 	VENDOR_FLG(0x22d9, /* Oppo */
2180 		   QUIRK_FLAG_DSD_RAW),
2181 	VENDOR_FLG(0x23ba, /* Playback Design */
2182 		   QUIRK_FLAG_CTL_MSG_DELAY | QUIRK_FLAG_IFACE_DELAY |
2183 		   QUIRK_FLAG_DSD_RAW),
2184 	VENDOR_FLG(0x25ce, /* Mytek devices */
2185 		   QUIRK_FLAG_DSD_RAW),
2186 	VENDOR_FLG(0x278b, /* Rotel? */
2187 		   QUIRK_FLAG_DSD_RAW),
2188 	VENDOR_FLG(0x292b, /* Gustard/Ess based devices */
2189 		   QUIRK_FLAG_DSD_RAW),
2190 	VENDOR_FLG(0x2972, /* FiiO devices */
2191 		   QUIRK_FLAG_DSD_RAW),
2192 	VENDOR_FLG(0x2ab6, /* T+A devices */
2193 		   QUIRK_FLAG_DSD_RAW),
2194 	VENDOR_FLG(0x3353, /* Khadas devices */
2195 		   QUIRK_FLAG_DSD_RAW),
2196 	VENDOR_FLG(0x3842, /* EVGA */
2197 		   QUIRK_FLAG_DSD_RAW),
2198 	VENDOR_FLG(0xc502, /* HiBy devices */
2199 		   QUIRK_FLAG_DSD_RAW),
2200 
2201 	{} /* terminator */
2202 };
2203 
2204 void snd_usb_init_quirk_flags(struct snd_usb_audio *chip)
2205 {
2206 	const struct usb_audio_quirk_flags_table *p;
2207 
2208 	for (p = quirk_flags_table; p->id; p++) {
2209 		if (chip->usb_id == p->id ||
2210 		    (!USB_ID_PRODUCT(p->id) &&
2211 		     USB_ID_VENDOR(chip->usb_id) == USB_ID_VENDOR(p->id))) {
2212 			usb_audio_dbg(chip,
2213 				      "Set quirk_flags 0x%x for device %04x:%04x\n",
2214 				      p->flags, USB_ID_VENDOR(chip->usb_id),
2215 				      USB_ID_PRODUCT(chip->usb_id));
2216 			chip->quirk_flags |= p->flags;
2217 			return;
2218 		}
2219 	}
2220 }
2221