xref: /openbmc/linux/sound/usb/quirks.c (revision ac3cb6de)
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 "midi2.h"
23 #include "quirks.h"
24 #include "helper.h"
25 #include "endpoint.h"
26 #include "pcm.h"
27 #include "clock.h"
28 #include "stream.h"
29 
30 /*
31  * handle the quirks for the contained interfaces
32  */
33 static int create_composite_quirk(struct snd_usb_audio *chip,
34 				  struct usb_interface *iface,
35 				  struct usb_driver *driver,
36 				  const struct snd_usb_audio_quirk *quirk_comp)
37 {
38 	int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
39 	const struct snd_usb_audio_quirk *quirk;
40 	int err;
41 
42 	for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) {
43 		iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
44 		if (!iface)
45 			continue;
46 		if (quirk->ifnum != probed_ifnum &&
47 		    usb_interface_claimed(iface))
48 			continue;
49 		err = snd_usb_create_quirk(chip, iface, driver, quirk);
50 		if (err < 0)
51 			return err;
52 	}
53 
54 	for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) {
55 		iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
56 		if (!iface)
57 			continue;
58 		if (quirk->ifnum != probed_ifnum &&
59 		    !usb_interface_claimed(iface)) {
60 			err = usb_driver_claim_interface(driver, iface,
61 							 USB_AUDIO_IFACE_UNUSED);
62 			if (err < 0)
63 				return err;
64 		}
65 	}
66 
67 	return 0;
68 }
69 
70 static int ignore_interface_quirk(struct snd_usb_audio *chip,
71 				  struct usb_interface *iface,
72 				  struct usb_driver *driver,
73 				  const struct snd_usb_audio_quirk *quirk)
74 {
75 	return 0;
76 }
77 
78 
79 static int create_any_midi_quirk(struct snd_usb_audio *chip,
80 				 struct usb_interface *intf,
81 				 struct usb_driver *driver,
82 				 const struct snd_usb_audio_quirk *quirk)
83 {
84 	return snd_usb_midi_v2_create(chip, intf, quirk, 0);
85 }
86 
87 /*
88  * create a stream for an interface with proper descriptors
89  */
90 static int create_standard_audio_quirk(struct snd_usb_audio *chip,
91 				       struct usb_interface *iface,
92 				       struct usb_driver *driver,
93 				       const struct snd_usb_audio_quirk *quirk)
94 {
95 	struct usb_host_interface *alts;
96 	struct usb_interface_descriptor *altsd;
97 	int err;
98 
99 	alts = &iface->altsetting[0];
100 	altsd = get_iface_desc(alts);
101 	err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
102 	if (err < 0) {
103 		usb_audio_err(chip, "cannot setup if %d: error %d\n",
104 			   altsd->bInterfaceNumber, err);
105 		return err;
106 	}
107 	/* reset the current interface */
108 	usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
109 	return 0;
110 }
111 
112 /* create the audio stream and the corresponding endpoints from the fixed
113  * audioformat object; this is used for quirks with the fixed EPs
114  */
115 static int add_audio_stream_from_fixed_fmt(struct snd_usb_audio *chip,
116 					   struct audioformat *fp)
117 {
118 	int stream, err;
119 
120 	stream = (fp->endpoint & USB_DIR_IN) ?
121 		SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
122 
123 	snd_usb_audioformat_set_sync_ep(chip, fp);
124 
125 	err = snd_usb_add_audio_stream(chip, stream, fp);
126 	if (err < 0)
127 		return err;
128 
129 	err = snd_usb_add_endpoint(chip, fp->endpoint,
130 				   SND_USB_ENDPOINT_TYPE_DATA);
131 	if (err < 0)
132 		return err;
133 
134 	if (fp->sync_ep) {
135 		err = snd_usb_add_endpoint(chip, fp->sync_ep,
136 					   fp->implicit_fb ?
137 					   SND_USB_ENDPOINT_TYPE_DATA :
138 					   SND_USB_ENDPOINT_TYPE_SYNC);
139 		if (err < 0)
140 			return err;
141 	}
142 
143 	return 0;
144 }
145 
146 /*
147  * create a stream for an endpoint/altsetting without proper descriptors
148  */
149 static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
150 				     struct usb_interface *iface,
151 				     struct usb_driver *driver,
152 				     const struct snd_usb_audio_quirk *quirk)
153 {
154 	struct audioformat *fp;
155 	struct usb_host_interface *alts;
156 	struct usb_interface_descriptor *altsd;
157 	unsigned *rate_table = NULL;
158 	int err;
159 
160 	fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
161 	if (!fp)
162 		return -ENOMEM;
163 
164 	INIT_LIST_HEAD(&fp->list);
165 	if (fp->nr_rates > MAX_NR_RATES) {
166 		kfree(fp);
167 		return -EINVAL;
168 	}
169 	if (fp->nr_rates > 0) {
170 		rate_table = kmemdup(fp->rate_table,
171 				     sizeof(int) * fp->nr_rates, GFP_KERNEL);
172 		if (!rate_table) {
173 			kfree(fp);
174 			return -ENOMEM;
175 		}
176 		fp->rate_table = rate_table;
177 	}
178 
179 	if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
180 	    fp->altset_idx >= iface->num_altsetting) {
181 		err = -EINVAL;
182 		goto error;
183 	}
184 	alts = &iface->altsetting[fp->altset_idx];
185 	altsd = get_iface_desc(alts);
186 	if (altsd->bNumEndpoints <= fp->ep_idx) {
187 		err = -EINVAL;
188 		goto error;
189 	}
190 
191 	fp->protocol = altsd->bInterfaceProtocol;
192 
193 	if (fp->datainterval == 0)
194 		fp->datainterval = snd_usb_parse_datainterval(chip, alts);
195 	if (fp->maxpacksize == 0)
196 		fp->maxpacksize = le16_to_cpu(get_endpoint(alts, fp->ep_idx)->wMaxPacketSize);
197 	if (!fp->fmt_type)
198 		fp->fmt_type = UAC_FORMAT_TYPE_I;
199 
200 	err = add_audio_stream_from_fixed_fmt(chip, fp);
201 	if (err < 0)
202 		goto error;
203 
204 	usb_set_interface(chip->dev, fp->iface, 0);
205 	snd_usb_init_pitch(chip, fp);
206 	snd_usb_init_sample_rate(chip, fp, fp->rate_max);
207 	return 0;
208 
209  error:
210 	list_del(&fp->list); /* unlink for avoiding double-free */
211 	kfree(fp);
212 	kfree(rate_table);
213 	return err;
214 }
215 
216 static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
217 				 struct usb_interface *iface,
218 				 struct usb_driver *driver)
219 {
220 	struct usb_host_interface *alts;
221 	struct usb_interface_descriptor *altsd;
222 	struct usb_endpoint_descriptor *epd;
223 	struct uac1_as_header_descriptor *ashd;
224 	struct uac_format_type_i_discrete_descriptor *fmtd;
225 
226 	/*
227 	 * Most Roland/Yamaha audio streaming interfaces have more or less
228 	 * standard descriptors, but older devices might lack descriptors, and
229 	 * future ones might change, so ensure that we fail silently if the
230 	 * interface doesn't look exactly right.
231 	 */
232 
233 	/* must have a non-zero altsetting for streaming */
234 	if (iface->num_altsetting < 2)
235 		return -ENODEV;
236 	alts = &iface->altsetting[1];
237 	altsd = get_iface_desc(alts);
238 
239 	/* must have an isochronous endpoint for streaming */
240 	if (altsd->bNumEndpoints < 1)
241 		return -ENODEV;
242 	epd = get_endpoint(alts, 0);
243 	if (!usb_endpoint_xfer_isoc(epd))
244 		return -ENODEV;
245 
246 	/* must have format descriptors */
247 	ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
248 				       UAC_AS_GENERAL);
249 	fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
250 				       UAC_FORMAT_TYPE);
251 	if (!ashd || ashd->bLength < 7 ||
252 	    !fmtd || fmtd->bLength < 8)
253 		return -ENODEV;
254 
255 	return create_standard_audio_quirk(chip, iface, driver, NULL);
256 }
257 
258 static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
259 				    struct usb_interface *iface,
260 				    struct usb_driver *driver,
261 				    struct usb_host_interface *alts)
262 {
263 	static const struct snd_usb_audio_quirk yamaha_midi_quirk = {
264 		.type = QUIRK_MIDI_YAMAHA
265 	};
266 	struct usb_midi_in_jack_descriptor *injd;
267 	struct usb_midi_out_jack_descriptor *outjd;
268 
269 	/* must have some valid jack descriptors */
270 	injd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
271 				       NULL, USB_MS_MIDI_IN_JACK);
272 	outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
273 					NULL, USB_MS_MIDI_OUT_JACK);
274 	if (!injd && !outjd)
275 		return -ENODEV;
276 	if ((injd && !snd_usb_validate_midi_desc(injd)) ||
277 	    (outjd && !snd_usb_validate_midi_desc(outjd)))
278 		return -ENODEV;
279 	if (injd && (injd->bLength < 5 ||
280 		     (injd->bJackType != USB_MS_EMBEDDED &&
281 		      injd->bJackType != USB_MS_EXTERNAL)))
282 		return -ENODEV;
283 	if (outjd && (outjd->bLength < 6 ||
284 		      (outjd->bJackType != USB_MS_EMBEDDED &&
285 		       outjd->bJackType != USB_MS_EXTERNAL)))
286 		return -ENODEV;
287 	return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk);
288 }
289 
290 static int create_roland_midi_quirk(struct snd_usb_audio *chip,
291 				    struct usb_interface *iface,
292 				    struct usb_driver *driver,
293 				    struct usb_host_interface *alts)
294 {
295 	static const struct snd_usb_audio_quirk roland_midi_quirk = {
296 		.type = QUIRK_MIDI_ROLAND
297 	};
298 	u8 *roland_desc = NULL;
299 
300 	/* might have a vendor-specific descriptor <06 24 F1 02 ...> */
301 	for (;;) {
302 		roland_desc = snd_usb_find_csint_desc(alts->extra,
303 						      alts->extralen,
304 						      roland_desc, 0xf1);
305 		if (!roland_desc)
306 			return -ENODEV;
307 		if (roland_desc[0] < 6 || roland_desc[3] != 2)
308 			continue;
309 		return create_any_midi_quirk(chip, iface, driver,
310 					     &roland_midi_quirk);
311 	}
312 }
313 
314 static int create_std_midi_quirk(struct snd_usb_audio *chip,
315 				 struct usb_interface *iface,
316 				 struct usb_driver *driver,
317 				 struct usb_host_interface *alts)
318 {
319 	struct usb_ms_header_descriptor *mshd;
320 	struct usb_ms_endpoint_descriptor *msepd;
321 
322 	/* must have the MIDIStreaming interface header descriptor*/
323 	mshd = (struct usb_ms_header_descriptor *)alts->extra;
324 	if (alts->extralen < 7 ||
325 	    mshd->bLength < 7 ||
326 	    mshd->bDescriptorType != USB_DT_CS_INTERFACE ||
327 	    mshd->bDescriptorSubtype != USB_MS_HEADER)
328 		return -ENODEV;
329 	/* must have the MIDIStreaming endpoint descriptor*/
330 	msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra;
331 	if (alts->endpoint[0].extralen < 4 ||
332 	    msepd->bLength < 4 ||
333 	    msepd->bDescriptorType != USB_DT_CS_ENDPOINT ||
334 	    msepd->bDescriptorSubtype != UAC_MS_GENERAL ||
335 	    msepd->bNumEmbMIDIJack < 1 ||
336 	    msepd->bNumEmbMIDIJack > 16)
337 		return -ENODEV;
338 
339 	return create_any_midi_quirk(chip, iface, driver, NULL);
340 }
341 
342 static int create_auto_midi_quirk(struct snd_usb_audio *chip,
343 				  struct usb_interface *iface,
344 				  struct usb_driver *driver)
345 {
346 	struct usb_host_interface *alts;
347 	struct usb_interface_descriptor *altsd;
348 	struct usb_endpoint_descriptor *epd;
349 	int err;
350 
351 	alts = &iface->altsetting[0];
352 	altsd = get_iface_desc(alts);
353 
354 	/* must have at least one bulk/interrupt endpoint for streaming */
355 	if (altsd->bNumEndpoints < 1)
356 		return -ENODEV;
357 	epd = get_endpoint(alts, 0);
358 	if (!usb_endpoint_xfer_bulk(epd) &&
359 	    !usb_endpoint_xfer_int(epd))
360 		return -ENODEV;
361 
362 	switch (USB_ID_VENDOR(chip->usb_id)) {
363 	case 0x0499: /* Yamaha */
364 		err = create_yamaha_midi_quirk(chip, iface, driver, alts);
365 		if (err != -ENODEV)
366 			return err;
367 		break;
368 	case 0x0582: /* Roland */
369 		err = create_roland_midi_quirk(chip, iface, driver, alts);
370 		if (err != -ENODEV)
371 			return err;
372 		break;
373 	}
374 
375 	return create_std_midi_quirk(chip, iface, driver, alts);
376 }
377 
378 static int create_autodetect_quirk(struct snd_usb_audio *chip,
379 				   struct usb_interface *iface,
380 				   struct usb_driver *driver,
381 				   const struct snd_usb_audio_quirk *quirk)
382 {
383 	int err;
384 
385 	err = create_auto_pcm_quirk(chip, iface, driver);
386 	if (err == -ENODEV)
387 		err = create_auto_midi_quirk(chip, iface, driver);
388 	return err;
389 }
390 
391 /*
392  * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
393  * The only way to detect the sample rate is by looking at wMaxPacketSize.
394  */
395 static int create_uaxx_quirk(struct snd_usb_audio *chip,
396 			     struct usb_interface *iface,
397 			     struct usb_driver *driver,
398 			     const struct snd_usb_audio_quirk *quirk)
399 {
400 	static const struct audioformat ua_format = {
401 		.formats = SNDRV_PCM_FMTBIT_S24_3LE,
402 		.channels = 2,
403 		.fmt_type = UAC_FORMAT_TYPE_I,
404 		.altsetting = 1,
405 		.altset_idx = 1,
406 		.rates = SNDRV_PCM_RATE_CONTINUOUS,
407 	};
408 	struct usb_host_interface *alts;
409 	struct usb_interface_descriptor *altsd;
410 	struct audioformat *fp;
411 	int err;
412 
413 	/* both PCM and MIDI interfaces have 2 or more altsettings */
414 	if (iface->num_altsetting < 2)
415 		return -ENXIO;
416 	alts = &iface->altsetting[1];
417 	altsd = get_iface_desc(alts);
418 
419 	if (altsd->bNumEndpoints == 2) {
420 		static const struct snd_usb_midi_endpoint_info ua700_ep = {
421 			.out_cables = 0x0003,
422 			.in_cables  = 0x0003
423 		};
424 		static const struct snd_usb_audio_quirk ua700_quirk = {
425 			.type = QUIRK_MIDI_FIXED_ENDPOINT,
426 			.data = &ua700_ep
427 		};
428 		static const struct snd_usb_midi_endpoint_info uaxx_ep = {
429 			.out_cables = 0x0001,
430 			.in_cables  = 0x0001
431 		};
432 		static const struct snd_usb_audio_quirk uaxx_quirk = {
433 			.type = QUIRK_MIDI_FIXED_ENDPOINT,
434 			.data = &uaxx_ep
435 		};
436 		const struct snd_usb_audio_quirk *quirk =
437 			chip->usb_id == USB_ID(0x0582, 0x002b)
438 			? &ua700_quirk : &uaxx_quirk;
439 		return __snd_usbmidi_create(chip->card, iface,
440 					    &chip->midi_list, quirk,
441 					    chip->usb_id,
442 					    &chip->num_rawmidis);
443 	}
444 
445 	if (altsd->bNumEndpoints != 1)
446 		return -ENXIO;
447 
448 	fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
449 	if (!fp)
450 		return -ENOMEM;
451 
452 	fp->iface = altsd->bInterfaceNumber;
453 	fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
454 	fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
455 	fp->datainterval = 0;
456 	fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
457 	INIT_LIST_HEAD(&fp->list);
458 
459 	switch (fp->maxpacksize) {
460 	case 0x120:
461 		fp->rate_max = fp->rate_min = 44100;
462 		break;
463 	case 0x138:
464 	case 0x140:
465 		fp->rate_max = fp->rate_min = 48000;
466 		break;
467 	case 0x258:
468 	case 0x260:
469 		fp->rate_max = fp->rate_min = 96000;
470 		break;
471 	default:
472 		usb_audio_err(chip, "unknown sample rate\n");
473 		kfree(fp);
474 		return -ENXIO;
475 	}
476 
477 	err = add_audio_stream_from_fixed_fmt(chip, fp);
478 	if (err < 0) {
479 		list_del(&fp->list); /* unlink for avoiding double-free */
480 		kfree(fp);
481 		return err;
482 	}
483 	usb_set_interface(chip->dev, fp->iface, 0);
484 	return 0;
485 }
486 
487 /*
488  * Create a standard mixer for the specified interface.
489  */
490 static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
491 				       struct usb_interface *iface,
492 				       struct usb_driver *driver,
493 				       const struct snd_usb_audio_quirk *quirk)
494 {
495 	if (quirk->ifnum < 0)
496 		return 0;
497 
498 	return snd_usb_create_mixer(chip, quirk->ifnum);
499 }
500 
501 /*
502  * audio-interface quirks
503  *
504  * returns zero if no standard audio/MIDI parsing is needed.
505  * returns a positive value if standard audio/midi interfaces are parsed
506  * after this.
507  * returns a negative value at error.
508  */
509 int snd_usb_create_quirk(struct snd_usb_audio *chip,
510 			 struct usb_interface *iface,
511 			 struct usb_driver *driver,
512 			 const struct snd_usb_audio_quirk *quirk)
513 {
514 	typedef int (*quirk_func_t)(struct snd_usb_audio *,
515 				    struct usb_interface *,
516 				    struct usb_driver *,
517 				    const struct snd_usb_audio_quirk *);
518 	static const quirk_func_t quirk_funcs[] = {
519 		[QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
520 		[QUIRK_COMPOSITE] = create_composite_quirk,
521 		[QUIRK_AUTODETECT] = create_autodetect_quirk,
522 		[QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
523 		[QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
524 		[QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
525 		[QUIRK_MIDI_ROLAND] = create_any_midi_quirk,
526 		[QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
527 		[QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
528 		[QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
529 		[QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
530 		[QUIRK_MIDI_CME] = create_any_midi_quirk,
531 		[QUIRK_MIDI_AKAI] = create_any_midi_quirk,
532 		[QUIRK_MIDI_FTDI] = create_any_midi_quirk,
533 		[QUIRK_MIDI_CH345] = create_any_midi_quirk,
534 		[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
535 		[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
536 		[QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
537 		[QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
538 	};
539 
540 	if (quirk->type < QUIRK_TYPE_COUNT) {
541 		return quirk_funcs[quirk->type](chip, iface, driver, quirk);
542 	} else {
543 		usb_audio_err(chip, "invalid quirk type %d\n", quirk->type);
544 		return -ENXIO;
545 	}
546 }
547 
548 /*
549  * boot quirks
550  */
551 
552 #define EXTIGY_FIRMWARE_SIZE_OLD 794
553 #define EXTIGY_FIRMWARE_SIZE_NEW 483
554 
555 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
556 {
557 	struct usb_host_config *config = dev->actconfig;
558 	int err;
559 
560 	if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
561 	    le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
562 		dev_dbg(&dev->dev, "sending Extigy boot sequence...\n");
563 		/* Send message to force it to reconnect with full interface. */
564 		err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
565 				      0x10, 0x43, 0x0001, 0x000a, NULL, 0);
566 		if (err < 0)
567 			dev_dbg(&dev->dev, "error sending boot message: %d\n", err);
568 		err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
569 				&dev->descriptor, sizeof(dev->descriptor));
570 		config = dev->actconfig;
571 		if (err < 0)
572 			dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
573 		err = usb_reset_configuration(dev);
574 		if (err < 0)
575 			dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
576 		dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n",
577 			    le16_to_cpu(get_cfg_desc(config)->wTotalLength));
578 		return -ENODEV; /* quit this anyway */
579 	}
580 	return 0;
581 }
582 
583 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
584 {
585 	u8 buf = 1;
586 
587 	snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
588 			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
589 			0, 0, &buf, 1);
590 	if (buf == 0) {
591 		snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
592 				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
593 				1, 2000, NULL, 0);
594 		return -ENODEV;
595 	}
596 	return 0;
597 }
598 
599 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
600 {
601 	int err;
602 
603 	if (dev->actconfig->desc.bConfigurationValue == 1) {
604 		dev_info(&dev->dev,
605 			   "Fast Track Pro switching to config #2\n");
606 		/* This function has to be available by the usb core module.
607 		 * if it is not avialable the boot quirk has to be left out
608 		 * and the configuration has to be set by udev or hotplug
609 		 * rules
610 		 */
611 		err = usb_driver_set_configuration(dev, 2);
612 		if (err < 0)
613 			dev_dbg(&dev->dev,
614 				"error usb_driver_set_configuration: %d\n",
615 				err);
616 		/* Always return an error, so that we stop creating a device
617 		   that will just be destroyed and recreated with a new
618 		   configuration */
619 		return -ENODEV;
620 	} else
621 		dev_info(&dev->dev, "Fast Track Pro config OK\n");
622 
623 	return 0;
624 }
625 
626 /*
627  * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
628  * documented in the device's data sheet.
629  */
630 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
631 {
632 	u8 buf[4];
633 	buf[0] = 0x20;
634 	buf[1] = value & 0xff;
635 	buf[2] = (value >> 8) & 0xff;
636 	buf[3] = reg;
637 	return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
638 			       USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
639 			       0, 0, &buf, 4);
640 }
641 
642 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
643 {
644 	/*
645 	 * Enable line-out driver mode, set headphone source to front
646 	 * channels, enable stereo mic.
647 	 */
648 	return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
649 }
650 
651 /*
652  * CM6206 registers from the CM6206 datasheet rev 2.1
653  */
654 #define CM6206_REG0_DMA_MASTER BIT(15)
655 #define CM6206_REG0_SPDIFO_RATE_48K (2 << 12)
656 #define CM6206_REG0_SPDIFO_RATE_96K (7 << 12)
657 /* Bit 4 thru 11 is the S/PDIF category code */
658 #define CM6206_REG0_SPDIFO_CAT_CODE_GENERAL (0 << 4)
659 #define CM6206_REG0_SPDIFO_EMPHASIS_CD BIT(3)
660 #define CM6206_REG0_SPDIFO_COPYRIGHT_NA BIT(2)
661 #define CM6206_REG0_SPDIFO_NON_AUDIO BIT(1)
662 #define CM6206_REG0_SPDIFO_PRO_FORMAT BIT(0)
663 
664 #define CM6206_REG1_TEST_SEL_CLK BIT(14)
665 #define CM6206_REG1_PLLBIN_EN BIT(13)
666 #define CM6206_REG1_SOFT_MUTE_EN BIT(12)
667 #define CM6206_REG1_GPIO4_OUT BIT(11)
668 #define CM6206_REG1_GPIO4_OE BIT(10)
669 #define CM6206_REG1_GPIO3_OUT BIT(9)
670 #define CM6206_REG1_GPIO3_OE BIT(8)
671 #define CM6206_REG1_GPIO2_OUT BIT(7)
672 #define CM6206_REG1_GPIO2_OE BIT(6)
673 #define CM6206_REG1_GPIO1_OUT BIT(5)
674 #define CM6206_REG1_GPIO1_OE BIT(4)
675 #define CM6206_REG1_SPDIFO_INVALID BIT(3)
676 #define CM6206_REG1_SPDIF_LOOP_EN BIT(2)
677 #define CM6206_REG1_SPDIFO_DIS BIT(1)
678 #define CM6206_REG1_SPDIFI_MIX BIT(0)
679 
680 #define CM6206_REG2_DRIVER_ON BIT(15)
681 #define CM6206_REG2_HEADP_SEL_SIDE_CHANNELS (0 << 13)
682 #define CM6206_REG2_HEADP_SEL_SURROUND_CHANNELS (1 << 13)
683 #define CM6206_REG2_HEADP_SEL_CENTER_SUBW (2 << 13)
684 #define CM6206_REG2_HEADP_SEL_FRONT_CHANNELS (3 << 13)
685 #define CM6206_REG2_MUTE_HEADPHONE_RIGHT BIT(12)
686 #define CM6206_REG2_MUTE_HEADPHONE_LEFT BIT(11)
687 #define CM6206_REG2_MUTE_REAR_SURROUND_RIGHT BIT(10)
688 #define CM6206_REG2_MUTE_REAR_SURROUND_LEFT BIT(9)
689 #define CM6206_REG2_MUTE_SIDE_SURROUND_RIGHT BIT(8)
690 #define CM6206_REG2_MUTE_SIDE_SURROUND_LEFT BIT(7)
691 #define CM6206_REG2_MUTE_SUBWOOFER BIT(6)
692 #define CM6206_REG2_MUTE_CENTER BIT(5)
693 #define CM6206_REG2_MUTE_RIGHT_FRONT BIT(3)
694 #define CM6206_REG2_MUTE_LEFT_FRONT BIT(3)
695 #define CM6206_REG2_EN_BTL BIT(2)
696 #define CM6206_REG2_MCUCLKSEL_1_5_MHZ (0)
697 #define CM6206_REG2_MCUCLKSEL_3_MHZ (1)
698 #define CM6206_REG2_MCUCLKSEL_6_MHZ (2)
699 #define CM6206_REG2_MCUCLKSEL_12_MHZ (3)
700 
701 /* Bit 11..13 sets the sensitivity to FLY tuner volume control VP/VD signal */
702 #define CM6206_REG3_FLYSPEED_DEFAULT (2 << 11)
703 #define CM6206_REG3_VRAP25EN BIT(10)
704 #define CM6206_REG3_MSEL1 BIT(9)
705 #define CM6206_REG3_SPDIFI_RATE_44_1K BIT(0 << 7)
706 #define CM6206_REG3_SPDIFI_RATE_48K BIT(2 << 7)
707 #define CM6206_REG3_SPDIFI_RATE_32K BIT(3 << 7)
708 #define CM6206_REG3_PINSEL BIT(6)
709 #define CM6206_REG3_FOE BIT(5)
710 #define CM6206_REG3_ROE BIT(4)
711 #define CM6206_REG3_CBOE BIT(3)
712 #define CM6206_REG3_LOSE BIT(2)
713 #define CM6206_REG3_HPOE BIT(1)
714 #define CM6206_REG3_SPDIFI_CANREC BIT(0)
715 
716 #define CM6206_REG5_DA_RSTN BIT(13)
717 #define CM6206_REG5_AD_RSTN BIT(12)
718 #define CM6206_REG5_SPDIFO_AD2SPDO BIT(12)
719 #define CM6206_REG5_SPDIFO_SEL_FRONT (0 << 9)
720 #define CM6206_REG5_SPDIFO_SEL_SIDE_SUR (1 << 9)
721 #define CM6206_REG5_SPDIFO_SEL_CEN_LFE (2 << 9)
722 #define CM6206_REG5_SPDIFO_SEL_REAR_SUR (3 << 9)
723 #define CM6206_REG5_CODECM BIT(8)
724 #define CM6206_REG5_EN_HPF BIT(7)
725 #define CM6206_REG5_T_SEL_DSDA4 BIT(6)
726 #define CM6206_REG5_T_SEL_DSDA3 BIT(5)
727 #define CM6206_REG5_T_SEL_DSDA2 BIT(4)
728 #define CM6206_REG5_T_SEL_DSDA1 BIT(3)
729 #define CM6206_REG5_T_SEL_DSDAD_NORMAL 0
730 #define CM6206_REG5_T_SEL_DSDAD_FRONT 4
731 #define CM6206_REG5_T_SEL_DSDAD_S_SURROUND 5
732 #define CM6206_REG5_T_SEL_DSDAD_CEN_LFE 6
733 #define CM6206_REG5_T_SEL_DSDAD_R_SURROUND 7
734 
735 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
736 {
737 	int err  = 0, reg;
738 	int val[] = {
739 		/*
740 		 * Values here are chosen based on sniffing USB traffic
741 		 * under Windows.
742 		 *
743 		 * REG0: DAC is master, sample rate 48kHz, no copyright
744 		 */
745 		CM6206_REG0_SPDIFO_RATE_48K |
746 		CM6206_REG0_SPDIFO_COPYRIGHT_NA,
747 		/*
748 		 * REG1: PLL binary search enable, soft mute enable.
749 		 */
750 		CM6206_REG1_PLLBIN_EN |
751 		CM6206_REG1_SOFT_MUTE_EN,
752 		/*
753 		 * REG2: enable output drivers,
754 		 * select front channels to the headphone output,
755 		 * then mute the headphone channels, run the MCU
756 		 * at 1.5 MHz.
757 		 */
758 		CM6206_REG2_DRIVER_ON |
759 		CM6206_REG2_HEADP_SEL_FRONT_CHANNELS |
760 		CM6206_REG2_MUTE_HEADPHONE_RIGHT |
761 		CM6206_REG2_MUTE_HEADPHONE_LEFT,
762 		/*
763 		 * REG3: default flyspeed, set 2.5V mic bias
764 		 * enable all line out ports and enable SPDIF
765 		 */
766 		CM6206_REG3_FLYSPEED_DEFAULT |
767 		CM6206_REG3_VRAP25EN |
768 		CM6206_REG3_FOE |
769 		CM6206_REG3_ROE |
770 		CM6206_REG3_CBOE |
771 		CM6206_REG3_LOSE |
772 		CM6206_REG3_HPOE |
773 		CM6206_REG3_SPDIFI_CANREC,
774 		/* REG4 is just a bunch of GPIO lines */
775 		0x0000,
776 		/* REG5: de-assert AD/DA reset signals */
777 		CM6206_REG5_DA_RSTN |
778 		CM6206_REG5_AD_RSTN };
779 
780 	for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
781 		err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
782 		if (err < 0)
783 			return err;
784 	}
785 
786 	return err;
787 }
788 
789 /* quirk for Plantronics GameCom 780 with CM6302 chip */
790 static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
791 {
792 	/* set the initial volume and don't change; other values are either
793 	 * too loud or silent due to firmware bug (bko#65251)
794 	 */
795 	u8 buf[2] = { 0x74, 0xe3 };
796 	return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
797 			USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
798 			UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
799 }
800 
801 /*
802  * Novation Twitch DJ controller
803  * Focusrite Novation Saffire 6 USB audio card
804  */
805 static int snd_usb_novation_boot_quirk(struct usb_device *dev)
806 {
807 	/* preemptively set up the device because otherwise the
808 	 * raw MIDI endpoints are not active */
809 	usb_set_interface(dev, 0, 1);
810 	return 0;
811 }
812 
813 /*
814  * This call will put the synth in "USB send" mode, i.e it will send MIDI
815  * messages through USB (this is disabled at startup). The synth will
816  * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
817  * sign on its LCD. Values here are chosen based on sniffing USB traffic
818  * under Windows.
819  */
820 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
821 {
822 	int err, actual_length;
823 	/* "midi send" enable */
824 	static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
825 	void *buf;
826 
827 	if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x05)))
828 		return -EINVAL;
829 	buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
830 	if (!buf)
831 		return -ENOMEM;
832 	err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
833 			ARRAY_SIZE(seq), &actual_length, 1000);
834 	kfree(buf);
835 	if (err < 0)
836 		return err;
837 
838 	return 0;
839 }
840 
841 /*
842  * Some sound cards from Native Instruments are in fact compliant to the USB
843  * audio standard of version 2 and other approved USB standards, even though
844  * they come up as vendor-specific device when first connected.
845  *
846  * However, they can be told to come up with a new set of descriptors
847  * upon their next enumeration, and the interfaces announced by the new
848  * descriptors will then be handled by the kernel's class drivers. As the
849  * product ID will also change, no further checks are required.
850  */
851 
852 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
853 {
854 	int ret;
855 
856 	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
857 				  0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
858 				  1, 0, NULL, 0, 1000);
859 
860 	if (ret < 0)
861 		return ret;
862 
863 	usb_reset_device(dev);
864 
865 	/* return -EAGAIN, so the creation of an audio interface for this
866 	 * temporary device is aborted. The device will reconnect with a
867 	 * new product ID */
868 	return -EAGAIN;
869 }
870 
871 static void mbox2_setup_48_24_magic(struct usb_device *dev)
872 {
873 	u8 srate[3];
874 	u8 temp[12];
875 
876 	/* Choose 48000Hz permanently */
877 	srate[0] = 0x80;
878 	srate[1] = 0xbb;
879 	srate[2] = 0x00;
880 
881 	/* Send the magic! */
882 	snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
883 		0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
884 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
885 		0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
886 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
887 		0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
888 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
889 		0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
890 	return;
891 }
892 
893 /* Digidesign Mbox 2 needs to load firmware onboard
894  * and driver must wait a few seconds for initialisation.
895  */
896 
897 #define MBOX2_FIRMWARE_SIZE    646
898 #define MBOX2_BOOT_LOADING     0x01 /* Hard coded into the device */
899 #define MBOX2_BOOT_READY       0x02 /* Hard coded into the device */
900 
901 static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
902 {
903 	struct usb_host_config *config = dev->actconfig;
904 	int err;
905 	u8 bootresponse[0x12];
906 	int fwsize;
907 	int count;
908 
909 	fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
910 
911 	if (fwsize != MBOX2_FIRMWARE_SIZE) {
912 		dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize);
913 		return -ENODEV;
914 	}
915 
916 	dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n");
917 
918 	count = 0;
919 	bootresponse[0] = MBOX2_BOOT_LOADING;
920 	while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
921 		msleep(500); /* 0.5 second delay */
922 		snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
923 			/* Control magic - load onboard firmware */
924 			0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
925 		if (bootresponse[0] == MBOX2_BOOT_READY)
926 			break;
927 		dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n");
928 		count++;
929 	}
930 
931 	if (bootresponse[0] != MBOX2_BOOT_READY) {
932 		dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
933 		return -ENODEV;
934 	}
935 
936 	dev_dbg(&dev->dev, "device initialised!\n");
937 
938 	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
939 		&dev->descriptor, sizeof(dev->descriptor));
940 	config = dev->actconfig;
941 	if (err < 0)
942 		dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
943 
944 	err = usb_reset_configuration(dev);
945 	if (err < 0)
946 		dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
947 	dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n",
948 		le16_to_cpu(get_cfg_desc(config)->wTotalLength));
949 
950 	mbox2_setup_48_24_magic(dev);
951 
952 	dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz");
953 
954 	return 0; /* Successful boot */
955 }
956 
957 static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)
958 {
959 	int err;
960 
961 	dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n");
962 
963 	/* If the Axe-Fx III has not fully booted, it will timeout when trying
964 	 * to enable the audio streaming interface. A more generous timeout is
965 	 * used here to detect when the Axe-Fx III has finished booting as the
966 	 * set interface message will be acked once it has
967 	 */
968 	err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
969 				USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,
970 				1, 1, NULL, 0, 120000);
971 	if (err < 0) {
972 		dev_err(&dev->dev,
973 			"failed waiting for Axe-Fx III to boot: %d\n", err);
974 		return err;
975 	}
976 
977 	dev_dbg(&dev->dev, "Axe-Fx III is now ready\n");
978 
979 	err = usb_set_interface(dev, 1, 0);
980 	if (err < 0)
981 		dev_dbg(&dev->dev,
982 			"error stopping Axe-Fx III interface: %d\n", err);
983 
984 	return 0;
985 }
986 
987 static void mbox3_setup_48_24_magic(struct usb_device *dev)
988 {
989 	/* The Mbox 3 is "little endian" */
990 	/* max volume is: 0x0000. */
991 	/* min volume is: 0x0080 (shown in little endian form) */
992 
993 
994 	/* Load 48000Hz rate into buffer */
995 	u8 com_buff[4] = {0x80, 0xbb, 0x00, 0x00};
996 
997 	/* Set 48000Hz sample rate */
998 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
999 			0x01, 0x21, 0x0100, 0x0001, &com_buff, 4);  //Is this really needed?
1000 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1001 			0x01, 0x21, 0x0100, 0x8101, &com_buff, 4);
1002 
1003 	/* Deactivate Tuner */
1004 	/* on  = 0x01*/
1005 	/* off = 0x00*/
1006 	com_buff[0] = 0x00;
1007 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1008 		0x01, 0x21, 0x0003, 0x2001, &com_buff, 1);
1009 
1010 	/* Set clock source to Internal (as opposed to S/PDIF) */
1011 	com_buff[0] = 0x01;
1012 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1013 			1, 0x21, 0x0100, 0x8001, &com_buff, 1);
1014 
1015 	/* Mute the hardware loopbacks to start the device in a known state. */
1016 	com_buff[0] = 0x00;
1017 	com_buff[1] = 0x80;
1018 	/* Analogue input 1 left channel: */
1019 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1020 			1, 0x21, 0x0110, 0x4001, &com_buff, 2);
1021 	/* Analogue input 1 right channel: */
1022 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1023 			1, 0x21, 0x0111, 0x4001, &com_buff, 2);
1024 	/* Analogue input 2 left channel: */
1025 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1026 			1, 0x21, 0x0114, 0x4001, &com_buff, 2);
1027 	/* Analogue input 2 right channel: */
1028 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1029 			1, 0x21, 0x0115, 0x4001, &com_buff, 2);
1030 	/* Analogue input 3 left channel: */
1031 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1032 			1, 0x21, 0x0118, 0x4001, &com_buff, 2);
1033 	/* Analogue input 3 right channel: */
1034 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1035 			1, 0x21, 0x0119, 0x4001, &com_buff, 2);
1036 	/* Analogue input 4 left channel: */
1037 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1038 			1, 0x21, 0x011c, 0x4001, &com_buff, 2);
1039 	/* Analogue input 4 right channel: */
1040 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1041 			1, 0x21, 0x011d, 0x4001, &com_buff, 2);
1042 
1043 	/* Set software sends to output */
1044 	com_buff[0] = 0x00;
1045 	com_buff[1] = 0x00;
1046 	/* Analogue software return 1 left channel: */
1047 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1048 			1, 0x21, 0x0100, 0x4001, &com_buff, 2);
1049 	com_buff[0] = 0x00;
1050 	com_buff[1] = 0x80;
1051 	/* Analogue software return 1 right channel: */
1052 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1053 			1, 0x21, 0x0101, 0x4001, &com_buff, 2);
1054 	com_buff[0] = 0x00;
1055 	com_buff[1] = 0x80;
1056 	/* Analogue software return 2 left channel: */
1057 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1058 			1, 0x21, 0x0104, 0x4001, &com_buff, 2);
1059 	com_buff[0] = 0x00;
1060 	com_buff[1] = 0x00;
1061 	/* Analogue software return 2 right channel: */
1062 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1063 			1, 0x21, 0x0105, 0x4001, &com_buff, 2);
1064 
1065 	com_buff[0] = 0x00;
1066 	com_buff[1] = 0x80;
1067 	/* Analogue software return 3 left channel: */
1068 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1069 			1, 0x21, 0x0108, 0x4001, &com_buff, 2);
1070 	/* Analogue software return 3 right channel: */
1071 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1072 			1, 0x21, 0x0109, 0x4001, &com_buff, 2);
1073 	/* Analogue software return 4 left channel: */
1074 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1075 			1, 0x21, 0x010c, 0x4001, &com_buff, 2);
1076 	/* Analogue software return 4 right channel: */
1077 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1078 			1, 0x21, 0x010d, 0x4001, &com_buff, 2);
1079 
1080 	/* Return to muting sends */
1081 	com_buff[0] = 0x00;
1082 	com_buff[1] = 0x80;
1083 	/* Analogue fx return left channel: */
1084 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1085 			1, 0x21, 0x0120, 0x4001, &com_buff, 2);
1086 	/* Analogue fx return right channel: */
1087 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1088 			1, 0x21, 0x0121, 0x4001, &com_buff, 2);
1089 
1090 	/* Analogue software input 1 fx send: */
1091 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1092 			1, 0x21, 0x0100, 0x4201, &com_buff, 2);
1093 	/* Analogue software input 2 fx send: */
1094 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1095 			1, 0x21, 0x0101, 0x4201, &com_buff, 2);
1096 	/* Analogue software input 3 fx send: */
1097 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1098 			1, 0x21, 0x0102, 0x4201, &com_buff, 2);
1099 	/* Analogue software input 4 fx send: */
1100 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1101 			1, 0x21, 0x0103, 0x4201, &com_buff, 2);
1102 	/* Analogue input 1 fx send: */
1103 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1104 			1, 0x21, 0x0104, 0x4201, &com_buff, 2);
1105 	/* Analogue input 2 fx send: */
1106 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1107 			1, 0x21, 0x0105, 0x4201, &com_buff, 2);
1108 	/* Analogue input 3 fx send: */
1109 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1110 			1, 0x21, 0x0106, 0x4201, &com_buff, 2);
1111 	/* Analogue input 4 fx send: */
1112 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1113 			1, 0x21, 0x0107, 0x4201, &com_buff, 2);
1114 
1115 	/* Toggle allowing host control */
1116 	com_buff[0] = 0x02;
1117 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1118 			3, 0x21, 0x0000, 0x2001, &com_buff, 1);
1119 
1120 	/* Do not dim fx returns */
1121 	com_buff[0] = 0x00;
1122 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1123 			3, 0x21, 0x0002, 0x2001, &com_buff, 1);
1124 
1125 	/* Do not set fx returns to mono */
1126 	com_buff[0] = 0x00;
1127 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1128 			3, 0x21, 0x0001, 0x2001, &com_buff, 1);
1129 
1130 	/* Mute the S/PDIF hardware loopback
1131 	 * same odd volume logic here as above
1132 	 */
1133 	com_buff[0] = 0x00;
1134 	com_buff[1] = 0x80;
1135 	/* S/PDIF hardware input 1 left channel */
1136 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1137 			1, 0x21, 0x0112, 0x4001, &com_buff, 2);
1138 	/* S/PDIF hardware input 1 right channel */
1139 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1140 			1, 0x21, 0x0113, 0x4001, &com_buff, 2);
1141 	/* S/PDIF hardware input 2 left channel */
1142 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1143 			1, 0x21, 0x0116, 0x4001, &com_buff, 2);
1144 	/* S/PDIF hardware input 2 right channel */
1145 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1146 			1, 0x21, 0x0117, 0x4001, &com_buff, 2);
1147 	/* S/PDIF hardware input 3 left channel */
1148 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1149 			1, 0x21, 0x011a, 0x4001, &com_buff, 2);
1150 	/* S/PDIF hardware input 3 right channel */
1151 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1152 			1, 0x21, 0x011b, 0x4001, &com_buff, 2);
1153 	/* S/PDIF hardware input 4 left channel */
1154 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1155 			1, 0x21, 0x011e, 0x4001, &com_buff, 2);
1156 	/* S/PDIF hardware input 4 right channel */
1157 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1158 			1, 0x21, 0x011f, 0x4001, &com_buff, 2);
1159 	/* S/PDIF software return 1 left channel */
1160 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1161 			1, 0x21, 0x0102, 0x4001, &com_buff, 2);
1162 	/* S/PDIF software return 1 right channel */
1163 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1164 			1, 0x21, 0x0103, 0x4001, &com_buff, 2);
1165 	/* S/PDIF software return 2 left channel */
1166 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1167 			1, 0x21, 0x0106, 0x4001, &com_buff, 2);
1168 	/* S/PDIF software return 2 right channel */
1169 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1170 			1, 0x21, 0x0107, 0x4001, &com_buff, 2);
1171 
1172 	com_buff[0] = 0x00;
1173 	com_buff[1] = 0x00;
1174 	/* S/PDIF software return 3 left channel */
1175 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1176 			1, 0x21, 0x010a, 0x4001, &com_buff, 2);
1177 
1178 	com_buff[0] = 0x00;
1179 	com_buff[1] = 0x80;
1180 	/* S/PDIF software return 3 right channel */
1181 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1182 			1, 0x21, 0x010b, 0x4001, &com_buff, 2);
1183 	/* S/PDIF software return 4 left channel */
1184 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1185 			1, 0x21, 0x010e, 0x4001, &com_buff, 2);
1186 
1187 	com_buff[0] = 0x00;
1188 	com_buff[1] = 0x00;
1189 	/* S/PDIF software return 4 right channel */
1190 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1191 			1, 0x21, 0x010f, 0x4001, &com_buff, 2);
1192 
1193 	com_buff[0] = 0x00;
1194 	com_buff[1] = 0x80;
1195 	/* S/PDIF fx returns left channel */
1196 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1197 			1, 0x21, 0x0122, 0x4001, &com_buff, 2);
1198 	/* S/PDIF fx returns right channel */
1199 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1200 			1, 0x21, 0x0123, 0x4001, &com_buff, 2);
1201 
1202 	/* Set the dropdown "Effect" to the first option */
1203 	/* Room1  = 0x00 */
1204 	/* Room2  = 0x01 */
1205 	/* Room3  = 0x02 */
1206 	/* Hall 1 = 0x03 */
1207 	/* Hall 2 = 0x04 */
1208 	/* Plate  = 0x05 */
1209 	/* Delay  = 0x06 */
1210 	/* Echo   = 0x07 */
1211 	com_buff[0] = 0x00;
1212 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1213 			1, 0x21, 0x0200, 0x4301, &com_buff, 1);	/* max is 0xff */
1214 	/* min is 0x00 */
1215 
1216 
1217 	/* Set the effect duration to 0 */
1218 	/* max is 0xffff */
1219 	/* min is 0x0000 */
1220 	com_buff[0] = 0x00;
1221 	com_buff[1] = 0x00;
1222 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1223 			1, 0x21, 0x0400, 0x4301, &com_buff, 2);
1224 
1225 	/* Set the effect volume and feedback to 0 */
1226 	/* max is 0xff */
1227 	/* min is 0x00 */
1228 	com_buff[0] = 0x00;
1229 	/* feedback: */
1230 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1231 			1, 0x21, 0x0500, 0x4301, &com_buff, 1);
1232 	/* volume: */
1233 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1234 			1, 0x21, 0x0300, 0x4301, &com_buff, 1);
1235 
1236 	/* Set soft button hold duration */
1237 	/* 0x03 = 250ms */
1238 	/* 0x05 = 500ms DEFAULT */
1239 	/* 0x08 = 750ms */
1240 	/* 0x0a = 1sec */
1241 	com_buff[0] = 0x05;
1242 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1243 			3, 0x21, 0x0005, 0x2001, &com_buff, 1);
1244 
1245 	/* Use dim LEDs for button of state */
1246 	com_buff[0] = 0x00;
1247 	snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
1248 			3, 0x21, 0x0004, 0x2001, &com_buff, 1);
1249 }
1250 
1251 #define MBOX3_DESCRIPTOR_SIZE	464
1252 
1253 static int snd_usb_mbox3_boot_quirk(struct usb_device *dev)
1254 {
1255 	struct usb_host_config *config = dev->actconfig;
1256 	int err;
1257 	int descriptor_size;
1258 
1259 	descriptor_size = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
1260 
1261 	if (descriptor_size != MBOX3_DESCRIPTOR_SIZE) {
1262 		dev_err(&dev->dev, "Invalid descriptor size=%d.\n", descriptor_size);
1263 		return -ENODEV;
1264 	}
1265 
1266 	dev_dbg(&dev->dev, "device initialised!\n");
1267 
1268 	err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
1269 		&dev->descriptor, sizeof(dev->descriptor));
1270 	config = dev->actconfig;
1271 	if (err < 0)
1272 		dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
1273 
1274 	err = usb_reset_configuration(dev);
1275 	if (err < 0)
1276 		dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
1277 	dev_dbg(&dev->dev, "mbox3_boot: new boot length = %d\n",
1278 		le16_to_cpu(get_cfg_desc(config)->wTotalLength));
1279 
1280 	mbox3_setup_48_24_magic(dev);
1281 	dev_info(&dev->dev, "Digidesign Mbox 3: 24bit 48kHz");
1282 
1283 	return 0; /* Successful boot */
1284 }
1285 
1286 #define MICROBOOK_BUF_SIZE 128
1287 
1288 static int snd_usb_motu_microbookii_communicate(struct usb_device *dev, u8 *buf,
1289 						int buf_size, int *length)
1290 {
1291 	int err, actual_length;
1292 
1293 	if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x01)))
1294 		return -EINVAL;
1295 	err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x01), buf, *length,
1296 				&actual_length, 1000);
1297 	if (err < 0)
1298 		return err;
1299 
1300 	print_hex_dump(KERN_DEBUG, "MicroBookII snd: ", DUMP_PREFIX_NONE, 16, 1,
1301 		       buf, actual_length, false);
1302 
1303 	memset(buf, 0, buf_size);
1304 
1305 	if (usb_pipe_type_check(dev, usb_rcvintpipe(dev, 0x82)))
1306 		return -EINVAL;
1307 	err = usb_interrupt_msg(dev, usb_rcvintpipe(dev, 0x82), buf, buf_size,
1308 				&actual_length, 1000);
1309 	if (err < 0)
1310 		return err;
1311 
1312 	print_hex_dump(KERN_DEBUG, "MicroBookII rcv: ", DUMP_PREFIX_NONE, 16, 1,
1313 		       buf, actual_length, false);
1314 
1315 	*length = actual_length;
1316 	return 0;
1317 }
1318 
1319 static int snd_usb_motu_microbookii_boot_quirk(struct usb_device *dev)
1320 {
1321 	int err, actual_length, poll_attempts = 0;
1322 	static const u8 set_samplerate_seq[] = { 0x00, 0x00, 0x00, 0x00,
1323 						 0x00, 0x00, 0x0b, 0x14,
1324 						 0x00, 0x00, 0x00, 0x01 };
1325 	static const u8 poll_ready_seq[] = { 0x00, 0x04, 0x00, 0x00,
1326 					     0x00, 0x00, 0x0b, 0x18 };
1327 	u8 *buf = kzalloc(MICROBOOK_BUF_SIZE, GFP_KERNEL);
1328 
1329 	if (!buf)
1330 		return -ENOMEM;
1331 
1332 	dev_info(&dev->dev, "Waiting for MOTU Microbook II to boot up...\n");
1333 
1334 	/* First we tell the device which sample rate to use. */
1335 	memcpy(buf, set_samplerate_seq, sizeof(set_samplerate_seq));
1336 	actual_length = sizeof(set_samplerate_seq);
1337 	err = snd_usb_motu_microbookii_communicate(dev, buf, MICROBOOK_BUF_SIZE,
1338 						   &actual_length);
1339 
1340 	if (err < 0) {
1341 		dev_err(&dev->dev,
1342 			"failed setting the sample rate for Motu MicroBook II: %d\n",
1343 			err);
1344 		goto free_buf;
1345 	}
1346 
1347 	/* Then we poll every 100 ms until the device informs of its readiness. */
1348 	while (true) {
1349 		if (++poll_attempts > 100) {
1350 			dev_err(&dev->dev,
1351 				"failed booting Motu MicroBook II: timeout\n");
1352 			err = -ENODEV;
1353 			goto free_buf;
1354 		}
1355 
1356 		memset(buf, 0, MICROBOOK_BUF_SIZE);
1357 		memcpy(buf, poll_ready_seq, sizeof(poll_ready_seq));
1358 
1359 		actual_length = sizeof(poll_ready_seq);
1360 		err = snd_usb_motu_microbookii_communicate(
1361 			dev, buf, MICROBOOK_BUF_SIZE, &actual_length);
1362 		if (err < 0) {
1363 			dev_err(&dev->dev,
1364 				"failed booting Motu MicroBook II: communication error %d\n",
1365 				err);
1366 			goto free_buf;
1367 		}
1368 
1369 		/* the device signals its readiness through a message of the
1370 		 * form
1371 		 *           XX 06 00 00 00 00 0b 18  00 00 00 01
1372 		 * If the device is not yet ready to accept audio data, the
1373 		 * last byte of that sequence is 00.
1374 		 */
1375 		if (actual_length == 12 && buf[actual_length - 1] == 1)
1376 			break;
1377 
1378 		msleep(100);
1379 	}
1380 
1381 	dev_info(&dev->dev, "MOTU MicroBook II ready\n");
1382 
1383 free_buf:
1384 	kfree(buf);
1385 	return err;
1386 }
1387 
1388 static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev)
1389 {
1390 	msleep(2000);
1391 
1392 	return 0;
1393 }
1394 
1395 /*
1396  * Setup quirks
1397  */
1398 #define MAUDIO_SET		0x01 /* parse device_setup */
1399 #define MAUDIO_SET_COMPATIBLE	0x80 /* use only "win-compatible" interfaces */
1400 #define MAUDIO_SET_DTS		0x02 /* enable DTS Digital Output */
1401 #define MAUDIO_SET_96K		0x04 /* 48-96kHz rate if set, 8-48kHz otherwise */
1402 #define MAUDIO_SET_24B		0x08 /* 24bits sample if set, 16bits otherwise */
1403 #define MAUDIO_SET_DI		0x10 /* enable Digital Input */
1404 #define MAUDIO_SET_MASK		0x1f /* bit mask for setup value */
1405 #define MAUDIO_SET_24B_48K_DI	 0x19 /* 24bits+48kHz+Digital Input */
1406 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48kHz+No Digital Input */
1407 #define MAUDIO_SET_16B_48K_DI	 0x11 /* 16bits+48kHz+Digital Input */
1408 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48kHz+No Digital Input */
1409 
1410 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
1411 				      int iface, int altno)
1412 {
1413 	/* Reset ALL ifaces to 0 altsetting.
1414 	 * Call it for every possible altsetting of every interface.
1415 	 */
1416 	usb_set_interface(chip->dev, iface, 0);
1417 	if (chip->setup & MAUDIO_SET) {
1418 		if (chip->setup & MAUDIO_SET_COMPATIBLE) {
1419 			if (iface != 1 && iface != 2)
1420 				return 1; /* skip all interfaces but 1 and 2 */
1421 		} else {
1422 			unsigned int mask;
1423 			if (iface == 1 || iface == 2)
1424 				return 1; /* skip interfaces 1 and 2 */
1425 			if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1426 				return 1; /* skip this altsetting */
1427 			mask = chip->setup & MAUDIO_SET_MASK;
1428 			if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1429 				return 1; /* skip this altsetting */
1430 			if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1431 				return 1; /* skip this altsetting */
1432 			if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
1433 				return 1; /* skip this altsetting */
1434 		}
1435 	}
1436 	usb_audio_dbg(chip,
1437 		    "using altsetting %d for interface %d config %d\n",
1438 		    altno, iface, chip->setup);
1439 	return 0; /* keep this altsetting */
1440 }
1441 
1442 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
1443 					 int iface,
1444 					 int altno)
1445 {
1446 	/* Reset ALL ifaces to 0 altsetting.
1447 	 * Call it for every possible altsetting of every interface.
1448 	 */
1449 	usb_set_interface(chip->dev, iface, 0);
1450 
1451 	if (chip->setup & MAUDIO_SET) {
1452 		unsigned int mask;
1453 		if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
1454 			return 1; /* skip this altsetting */
1455 		if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
1456 			return 1; /* skip this altsetting */
1457 		mask = chip->setup & MAUDIO_SET_MASK;
1458 		if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
1459 			return 1; /* skip this altsetting */
1460 		if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
1461 			return 1; /* skip this altsetting */
1462 		if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
1463 			return 1; /* skip this altsetting */
1464 		if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
1465 			return 1; /* skip this altsetting */
1466 	}
1467 
1468 	return 0; /* keep this altsetting */
1469 }
1470 
1471 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
1472 					   int iface, int altno)
1473 {
1474 	/* Reset ALL ifaces to 0 altsetting.
1475 	 * Call it for every possible altsetting of every interface.
1476 	 */
1477 	usb_set_interface(chip->dev, iface, 0);
1478 
1479 	/* possible configuration where both inputs and only one output is
1480 	 *used is not supported by the current setup
1481 	 */
1482 	if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
1483 		if (chip->setup & MAUDIO_SET_96K) {
1484 			if (altno != 3 && altno != 6)
1485 				return 1;
1486 		} else if (chip->setup & MAUDIO_SET_DI) {
1487 			if (iface == 4)
1488 				return 1; /* no analog input */
1489 			if (altno != 2 && altno != 5)
1490 				return 1; /* enable only altsets 2 and 5 */
1491 		} else {
1492 			if (iface == 5)
1493 				return 1; /* disable digialt input */
1494 			if (altno != 2 && altno != 5)
1495 				return 1; /* enalbe only altsets 2 and 5 */
1496 		}
1497 	} else {
1498 		/* keep only 16-Bit mode */
1499 		if (altno != 1)
1500 			return 1;
1501 	}
1502 
1503 	usb_audio_dbg(chip,
1504 		    "using altsetting %d for interface %d config %d\n",
1505 		    altno, iface, chip->setup);
1506 	return 0; /* keep this altsetting */
1507 }
1508 
1509 static int s1810c_skip_setting_quirk(struct snd_usb_audio *chip,
1510 					   int iface, int altno)
1511 {
1512 	/*
1513 	 * Altno settings:
1514 	 *
1515 	 * Playback (Interface 1):
1516 	 * 1: 6 Analog + 2 S/PDIF
1517 	 * 2: 6 Analog + 2 S/PDIF
1518 	 * 3: 6 Analog
1519 	 *
1520 	 * Capture (Interface 2):
1521 	 * 1: 8 Analog + 2 S/PDIF + 8 ADAT
1522 	 * 2: 8 Analog + 2 S/PDIF + 4 ADAT
1523 	 * 3: 8 Analog
1524 	 */
1525 
1526 	/*
1527 	 * I'll leave 2 as the default one and
1528 	 * use device_setup to switch to the
1529 	 * other two.
1530 	 */
1531 	if ((chip->setup == 0 || chip->setup > 2) && altno != 2)
1532 		return 1;
1533 	else if (chip->setup == 1 && altno != 1)
1534 		return 1;
1535 	else if (chip->setup == 2 && altno != 3)
1536 		return 1;
1537 
1538 	return 0;
1539 }
1540 
1541 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
1542 				  int iface,
1543 				  int altno)
1544 {
1545 	/* audiophile usb: skip altsets incompatible with device_setup */
1546 	if (chip->usb_id == USB_ID(0x0763, 0x2003))
1547 		return audiophile_skip_setting_quirk(chip, iface, altno);
1548 	/* quattro usb: skip altsets incompatible with device_setup */
1549 	if (chip->usb_id == USB_ID(0x0763, 0x2001))
1550 		return quattro_skip_setting_quirk(chip, iface, altno);
1551 	/* fasttrackpro usb: skip altsets incompatible with device_setup */
1552 	if (chip->usb_id == USB_ID(0x0763, 0x2012))
1553 		return fasttrackpro_skip_setting_quirk(chip, iface, altno);
1554 	/* presonus studio 1810c: skip altsets incompatible with device_setup */
1555 	if (chip->usb_id == USB_ID(0x194f, 0x010c))
1556 		return s1810c_skip_setting_quirk(chip, iface, altno);
1557 
1558 
1559 	return 0;
1560 }
1561 
1562 int snd_usb_apply_boot_quirk(struct usb_device *dev,
1563 			     struct usb_interface *intf,
1564 			     const struct snd_usb_audio_quirk *quirk,
1565 			     unsigned int id)
1566 {
1567 	switch (id) {
1568 	case USB_ID(0x041e, 0x3000):
1569 		/* SB Extigy needs special boot-up sequence */
1570 		/* if more models come, this will go to the quirk list. */
1571 		return snd_usb_extigy_boot_quirk(dev, intf);
1572 
1573 	case USB_ID(0x041e, 0x3020):
1574 		/* SB Audigy 2 NX needs its own boot-up magic, too */
1575 		return snd_usb_audigy2nx_boot_quirk(dev);
1576 
1577 	case USB_ID(0x10f5, 0x0200):
1578 		/* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
1579 		return snd_usb_cm106_boot_quirk(dev);
1580 
1581 	case USB_ID(0x0d8c, 0x0102):
1582 		/* C-Media CM6206 / CM106-Like Sound Device */
1583 	case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
1584 		return snd_usb_cm6206_boot_quirk(dev);
1585 
1586 	case USB_ID(0x0dba, 0x3000):
1587 		/* Digidesign Mbox 2 */
1588 		return snd_usb_mbox2_boot_quirk(dev);
1589 	case USB_ID(0x0dba, 0x5000):
1590 		/* Digidesign Mbox 3 */
1591 		return snd_usb_mbox3_boot_quirk(dev);
1592 
1593 
1594 	case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
1595 	case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
1596 		return snd_usb_novation_boot_quirk(dev);
1597 
1598 	case USB_ID(0x133e, 0x0815):
1599 		/* Access Music VirusTI Desktop */
1600 		return snd_usb_accessmusic_boot_quirk(dev);
1601 
1602 	case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
1603 	case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
1604 	case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
1605 		return snd_usb_nativeinstruments_boot_quirk(dev);
1606 	case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
1607 		return snd_usb_fasttrackpro_boot_quirk(dev);
1608 	case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
1609 		return snd_usb_gamecon780_boot_quirk(dev);
1610 	case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */
1611 		return snd_usb_axefx3_boot_quirk(dev);
1612 	case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook II */
1613 		/*
1614 		 * For some reason interface 3 with vendor-spec class is
1615 		 * detected on MicroBook IIc.
1616 		 */
1617 		if (get_iface_desc(intf->altsetting)->bInterfaceClass ==
1618 		    USB_CLASS_VENDOR_SPEC &&
1619 		    get_iface_desc(intf->altsetting)->bInterfaceNumber < 3)
1620 			return snd_usb_motu_microbookii_boot_quirk(dev);
1621 		break;
1622 	}
1623 
1624 	return 0;
1625 }
1626 
1627 int snd_usb_apply_boot_quirk_once(struct usb_device *dev,
1628 				  struct usb_interface *intf,
1629 				  const struct snd_usb_audio_quirk *quirk,
1630 				  unsigned int id)
1631 {
1632 	switch (id) {
1633 	case USB_ID(0x07fd, 0x0008): /* MOTU M Series */
1634 		return snd_usb_motu_m_series_boot_quirk(dev);
1635 	}
1636 
1637 	return 0;
1638 }
1639 
1640 /*
1641  * check if the device uses big-endian samples
1642  */
1643 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip,
1644 				 const struct audioformat *fp)
1645 {
1646 	/* it depends on altsetting whether the device is big-endian or not */
1647 	switch (chip->usb_id) {
1648 	case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
1649 		if (fp->altsetting == 2 || fp->altsetting == 3 ||
1650 			fp->altsetting == 5 || fp->altsetting == 6)
1651 			return 1;
1652 		break;
1653 	case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1654 		if (chip->setup == 0x00 ||
1655 			fp->altsetting == 1 || fp->altsetting == 2 ||
1656 			fp->altsetting == 3)
1657 			return 1;
1658 		break;
1659 	case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1660 		if (fp->altsetting == 2 || fp->altsetting == 3 ||
1661 			fp->altsetting == 5 || fp->altsetting == 6)
1662 			return 1;
1663 		break;
1664 	}
1665 	return 0;
1666 }
1667 
1668 /*
1669  * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
1670  * not for interface.
1671  */
1672 
1673 enum {
1674 	EMU_QUIRK_SR_44100HZ = 0,
1675 	EMU_QUIRK_SR_48000HZ,
1676 	EMU_QUIRK_SR_88200HZ,
1677 	EMU_QUIRK_SR_96000HZ,
1678 	EMU_QUIRK_SR_176400HZ,
1679 	EMU_QUIRK_SR_192000HZ
1680 };
1681 
1682 static void set_format_emu_quirk(struct snd_usb_substream *subs,
1683 				 const struct audioformat *fmt)
1684 {
1685 	unsigned char emu_samplerate_id = 0;
1686 
1687 	/* When capture is active
1688 	 * sample rate shouldn't be changed
1689 	 * by playback substream
1690 	 */
1691 	if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1692 		if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].cur_audiofmt)
1693 			return;
1694 	}
1695 
1696 	switch (fmt->rate_min) {
1697 	case 48000:
1698 		emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1699 		break;
1700 	case 88200:
1701 		emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1702 		break;
1703 	case 96000:
1704 		emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1705 		break;
1706 	case 176400:
1707 		emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1708 		break;
1709 	case 192000:
1710 		emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1711 		break;
1712 	default:
1713 		emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1714 		break;
1715 	}
1716 	snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1717 	subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
1718 }
1719 
1720 static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs,
1721 					u16 windex)
1722 {
1723 	unsigned int cur_rate = subs->data_endpoint->cur_rate;
1724 	u8 sr[3];
1725 	// Convert to little endian
1726 	sr[0] = cur_rate & 0xff;
1727 	sr[1] = (cur_rate >> 8) & 0xff;
1728 	sr[2] = (cur_rate >> 16) & 0xff;
1729 	usb_set_interface(subs->dev, 0, 1);
1730 	// we should derive windex from fmt-sync_ep but it's not set
1731 	snd_usb_ctl_msg(subs->stream->chip->dev,
1732 		usb_sndctrlpipe(subs->stream->chip->dev, 0),
1733 		0x01, 0x22, 0x0100, windex, &sr, 0x0003);
1734 	return 0;
1735 }
1736 
1737 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1738 			      const struct audioformat *fmt)
1739 {
1740 	switch (subs->stream->chip->usb_id) {
1741 	case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1742 	case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1743 	case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1744 	case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
1745 		set_format_emu_quirk(subs, fmt);
1746 		break;
1747 	case USB_ID(0x534d, 0x0021): /* MacroSilicon MS2100/MS2106 */
1748 	case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */
1749 		subs->stream_offset_adj = 2;
1750 		break;
1751 	case USB_ID(0x2b73, 0x0013): /* Pioneer DJM-450 */
1752 		pioneer_djm_set_format_quirk(subs, 0x0082);
1753 		break;
1754 	case USB_ID(0x08e4, 0x017f): /* Pioneer DJM-750 */
1755 	case USB_ID(0x08e4, 0x0163): /* Pioneer DJM-850 */
1756 		pioneer_djm_set_format_quirk(subs, 0x0086);
1757 		break;
1758 	}
1759 }
1760 
1761 int snd_usb_select_mode_quirk(struct snd_usb_audio *chip,
1762 			      const struct audioformat *fmt)
1763 {
1764 	struct usb_device *dev = chip->dev;
1765 	int err;
1766 
1767 	if (chip->quirk_flags & QUIRK_FLAG_ITF_USB_DSD_DAC) {
1768 		/* First switch to alt set 0, otherwise the mode switch cmd
1769 		 * will not be accepted by the DAC
1770 		 */
1771 		err = usb_set_interface(dev, fmt->iface, 0);
1772 		if (err < 0)
1773 			return err;
1774 
1775 		msleep(20); /* Delay needed after setting the interface */
1776 
1777 		/* Vendor mode switch cmd is required. */
1778 		if (fmt->formats & SNDRV_PCM_FMTBIT_DSD_U32_BE) {
1779 			/* DSD mode (DSD_U32) requested */
1780 			err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1781 					      USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1782 					      1, 1, NULL, 0);
1783 			if (err < 0)
1784 				return err;
1785 
1786 		} else {
1787 			/* PCM or DOP mode (S32) requested */
1788 			/* PCM mode (S16) requested */
1789 			err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
1790 					      USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
1791 					      0, 1, NULL, 0);
1792 			if (err < 0)
1793 				return err;
1794 
1795 		}
1796 		msleep(20);
1797 	}
1798 	return 0;
1799 }
1800 
1801 void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1802 {
1803 	/*
1804 	 * "Playback Design" products send bogus feedback data at the start
1805 	 * of the stream. Ignore them.
1806 	 */
1807 	if (USB_ID_VENDOR(ep->chip->usb_id) == 0x23ba &&
1808 	    ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1809 		ep->skip_packets = 4;
1810 
1811 	/*
1812 	 * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1813 	 * world latency varies by approx. +/- 50 frames (at 96kHz) each time
1814 	 * the stream is (re)started. When skipping packets 16 at endpoint
1815 	 * start up, the real world latency is stable within +/- 1 frame (also
1816 	 * across power cycles).
1817 	 */
1818 	if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1819 	     ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
1820 	    ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1821 		ep->skip_packets = 16;
1822 
1823 	/* Work around devices that report unreasonable feedback data */
1824 	if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) ||  /* TEAC UD-H01 */
1825 	     ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
1826 	    ep->syncmaxsize == 4)
1827 		ep->tenor_fb_quirk = 1;
1828 }
1829 
1830 /* quirk applied after snd_usb_ctl_msg(); not applied during boot quirks */
1831 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1832 			   __u8 request, __u8 requesttype, __u16 value,
1833 			   __u16 index, void *data, __u16 size)
1834 {
1835 	struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev);
1836 
1837 	if (!chip || (requesttype & USB_TYPE_MASK) != USB_TYPE_CLASS)
1838 		return;
1839 
1840 	if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY)
1841 		msleep(20);
1842 	else if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY_1M)
1843 		usleep_range(1000, 2000);
1844 	else if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY_5M)
1845 		usleep_range(5000, 6000);
1846 }
1847 
1848 /*
1849  * snd_usb_interface_dsd_format_quirks() is called from format.c to
1850  * augment the PCM format bit-field for DSD types. The UAC standards
1851  * don't have a designated bit field to denote DSD-capable interfaces,
1852  * hence all hardware that is known to support this format has to be
1853  * listed here.
1854  */
1855 u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1856 					struct audioformat *fp,
1857 					unsigned int sample_bytes)
1858 {
1859 	struct usb_interface *iface;
1860 
1861 	/* Playback Designs */
1862 	if (USB_ID_VENDOR(chip->usb_id) == 0x23ba &&
1863 	    USB_ID_PRODUCT(chip->usb_id) < 0x0110) {
1864 		switch (fp->altsetting) {
1865 		case 1:
1866 			fp->dsd_dop = true;
1867 			return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1868 		case 2:
1869 			fp->dsd_bitrev = true;
1870 			return SNDRV_PCM_FMTBIT_DSD_U8;
1871 		case 3:
1872 			fp->dsd_bitrev = true;
1873 			return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1874 		}
1875 	}
1876 
1877 	/* XMOS based USB DACs */
1878 	switch (chip->usb_id) {
1879 	case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */
1880 	case USB_ID(0x21ed, 0xd75a): /* Accuphase DAC-60 option card */
1881 	case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */
1882 	case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
1883 		if (fp->altsetting == 2)
1884 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1885 		break;
1886 
1887 	case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
1888 	case USB_ID(0x10cb, 0x0103): /* The Bit Opus #3; with fp->dsd_raw */
1889 	case USB_ID(0x16d0, 0x06b2): /* NuPrime DAC-10 */
1890 	case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */
1891 	case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */
1892 	case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */
1893 	case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */
1894 	case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */
1895 	case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */
1896 	case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
1897 	case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */
1898 	case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */
1899 	case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */
1900 	case USB_ID(0x6b42, 0x0042): /* MSB Technology */
1901 		if (fp->altsetting == 3)
1902 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1903 		break;
1904 
1905 	/* Amanero Combo384 USB based DACs with native DSD support */
1906 	case USB_ID(0x16d0, 0x071a):  /* Amanero - Combo384 */
1907 	case USB_ID(0x2ab6, 0x0004):  /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */
1908 	case USB_ID(0x2ab6, 0x0005):  /* T+A USB HD Audio 1 */
1909 	case USB_ID(0x2ab6, 0x0006):  /* T+A USB HD Audio 2 */
1910 		if (fp->altsetting == 2) {
1911 			switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) {
1912 			case 0x199:
1913 				return SNDRV_PCM_FMTBIT_DSD_U32_LE;
1914 			case 0x19b:
1915 			case 0x203:
1916 				return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1917 			default:
1918 				break;
1919 			}
1920 		}
1921 		break;
1922 	case USB_ID(0x16d0, 0x0a23):
1923 		if (fp->altsetting == 2)
1924 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1925 		break;
1926 
1927 	default:
1928 		break;
1929 	}
1930 
1931 	/* ITF-USB DSD based DACs */
1932 	if (chip->quirk_flags & QUIRK_FLAG_ITF_USB_DSD_DAC) {
1933 		iface = usb_ifnum_to_if(chip->dev, fp->iface);
1934 
1935 		/* Altsetting 2 support native DSD if the num of altsets is
1936 		 * three (0-2),
1937 		 * Altsetting 3 support native DSD if the num of altsets is
1938 		 * four (0-3).
1939 		 */
1940 		if (fp->altsetting == iface->num_altsetting - 1)
1941 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1942 	}
1943 
1944 	/* Mostly generic method to detect many DSD-capable implementations */
1945 	if ((chip->quirk_flags & QUIRK_FLAG_DSD_RAW) && fp->dsd_raw)
1946 		return SNDRV_PCM_FMTBIT_DSD_U32_BE;
1947 
1948 	return 0;
1949 }
1950 
1951 void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
1952 					  struct audioformat *fp,
1953 					  int stream)
1954 {
1955 	switch (chip->usb_id) {
1956 	case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
1957 		/* Optoplay sets the sample rate attribute although
1958 		 * it seems not supporting it in fact.
1959 		 */
1960 		fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
1961 		break;
1962 	case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
1963 	case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1964 		/* doesn't set the sample rate attribute, but supports it */
1965 		fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
1966 		break;
1967 	case USB_ID(0x0763, 0x2001):  /* M-Audio Quattro USB */
1968 	case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
1969 	case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
1970 	case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
1971 					an older model 77d:223) */
1972 	/*
1973 	 * plantronics headset and Griffin iMic have set adaptive-in
1974 	 * although it's really not...
1975 	 */
1976 		fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
1977 		if (stream == SNDRV_PCM_STREAM_PLAYBACK)
1978 			fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
1979 		else
1980 			fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
1981 		break;
1982 	case USB_ID(0x07fd, 0x0004):  /* MOTU MicroBook IIc */
1983 		/*
1984 		 * MaxPacketsOnly attribute is erroneously set in endpoint
1985 		 * descriptors. As a result this card produces noise with
1986 		 * all sample rates other than 96 kHz.
1987 		 */
1988 		fp->attributes &= ~UAC_EP_CS_ATTR_FILL_MAX;
1989 		break;
1990 	case USB_ID(0x1224, 0x2a25):  /* Jieli Technology USB PHY 2.0 */
1991 		/* mic works only when ep packet size is set to wMaxPacketSize */
1992 		fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX;
1993 		break;
1994 
1995 	}
1996 }
1997 
1998 /*
1999  * driver behavior quirk flags
2000  */
2001 struct usb_audio_quirk_flags_table {
2002 	u32 id;
2003 	u32 flags;
2004 };
2005 
2006 #define DEVICE_FLG(vid, pid, _flags) \
2007 	{ .id = USB_ID(vid, pid), .flags = (_flags) }
2008 #define VENDOR_FLG(vid, _flags) DEVICE_FLG(vid, 0, _flags)
2009 
2010 static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
2011 	/* Device matches */
2012 	DEVICE_FLG(0x041e, 0x3000, /* Creative SB Extigy */
2013 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2014 	DEVICE_FLG(0x041e, 0x4080, /* Creative Live Cam VF0610 */
2015 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2016 	DEVICE_FLG(0x046d, 0x084c, /* Logitech ConferenceCam Connect */
2017 		   QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY_1M),
2018 	DEVICE_FLG(0x046d, 0x0991, /* Logitech QuickCam Pro */
2019 		   QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_IGNORE_CTL_ERROR),
2020 	DEVICE_FLG(0x046d, 0x09a4, /* Logitech QuickCam E 3500 */
2021 		   QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_IGNORE_CTL_ERROR),
2022 	DEVICE_FLG(0x0499, 0x1509, /* Steinberg UR22 */
2023 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2024 	DEVICE_FLG(0x04d8, 0xfeea, /* Benchmark DAC1 Pre */
2025 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2026 	DEVICE_FLG(0x04e8, 0xa051, /* Samsung USBC Headset (AKG) */
2027 		   QUIRK_FLAG_SKIP_CLOCK_SELECTOR | QUIRK_FLAG_CTL_MSG_DELAY_5M),
2028 	DEVICE_FLG(0x054c, 0x0b8c, /* Sony WALKMAN NW-A45 DAC */
2029 		   QUIRK_FLAG_SET_IFACE_FIRST),
2030 	DEVICE_FLG(0x0556, 0x0014, /* Phoenix Audio TMX320VC */
2031 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2032 	DEVICE_FLG(0x05a3, 0x9420, /* ELP HD USB Camera */
2033 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2034 	DEVICE_FLG(0x05a7, 0x1020, /* Bose Companion 5 */
2035 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2036 	DEVICE_FLG(0x05e1, 0x0408, /* Syntek STK1160 */
2037 		   QUIRK_FLAG_ALIGN_TRANSFER),
2038 	DEVICE_FLG(0x05e1, 0x0480, /* Hauppauge Woodbury */
2039 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2040 	DEVICE_FLG(0x0644, 0x8043, /* TEAC UD-501/UD-501V2/UD-503/NT-503 */
2041 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY |
2042 		   QUIRK_FLAG_IFACE_DELAY),
2043 	DEVICE_FLG(0x0644, 0x8044, /* Esoteric D-05X */
2044 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY |
2045 		   QUIRK_FLAG_IFACE_DELAY),
2046 	DEVICE_FLG(0x0644, 0x804a, /* TEAC UD-301 */
2047 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY |
2048 		   QUIRK_FLAG_IFACE_DELAY),
2049 	DEVICE_FLG(0x0644, 0x805f, /* TEAC Model 12 */
2050 		   QUIRK_FLAG_FORCE_IFACE_RESET),
2051 	DEVICE_FLG(0x06f8, 0xb000, /* Hercules DJ Console (Windows Edition) */
2052 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2053 	DEVICE_FLG(0x06f8, 0xd002, /* Hercules DJ Console (Macintosh Edition) */
2054 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2055 	DEVICE_FLG(0x0711, 0x5800, /* MCT Trigger 5 USB-to-HDMI */
2056 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2057 	DEVICE_FLG(0x074d, 0x3553, /* Outlaw RR2150 (Micronas UAC3553B) */
2058 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2059 	DEVICE_FLG(0x0763, 0x2030, /* M-Audio Fast Track C400 */
2060 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2061 	DEVICE_FLG(0x0763, 0x2031, /* M-Audio Fast Track C600 */
2062 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2063 	DEVICE_FLG(0x08bb, 0x2702, /* LineX FM Transmitter */
2064 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2065 	DEVICE_FLG(0x0951, 0x16ad, /* Kingston HyperX */
2066 		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
2067 	DEVICE_FLG(0x0b0e, 0x0349, /* Jabra 550a */
2068 		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
2069 	DEVICE_FLG(0x0fd9, 0x0008, /* Hauppauge HVR-950Q */
2070 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2071 	DEVICE_FLG(0x1395, 0x740a, /* Sennheiser DECT */
2072 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2073 	DEVICE_FLG(0x1397, 0x0507, /* Behringer UMC202HD */
2074 		   QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2075 	DEVICE_FLG(0x1397, 0x0508, /* Behringer UMC204HD */
2076 		   QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2077 	DEVICE_FLG(0x1397, 0x0509, /* Behringer UMC404HD */
2078 		   QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2079 	DEVICE_FLG(0x13e5, 0x0001, /* Serato Phono */
2080 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2081 	DEVICE_FLG(0x154e, 0x1002, /* Denon DCD-1500RE */
2082 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2083 	DEVICE_FLG(0x154e, 0x1003, /* Denon DA-300USB */
2084 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2085 	DEVICE_FLG(0x154e, 0x3005, /* Marantz HD-DAC1 */
2086 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2087 	DEVICE_FLG(0x154e, 0x3006, /* Marantz SA-14S1 */
2088 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2089 	DEVICE_FLG(0x154e, 0x500e, /* Denon DN-X1600 */
2090 		   QUIRK_FLAG_IGNORE_CLOCK_SOURCE),
2091 	DEVICE_FLG(0x1686, 0x00dd, /* Zoom R16/24 */
2092 		   QUIRK_FLAG_TX_LENGTH | QUIRK_FLAG_CTL_MSG_DELAY_1M),
2093 	DEVICE_FLG(0x17aa, 0x1046, /* Lenovo ThinkStation P620 Rear Line-in, Line-out and Microphone */
2094 		   QUIRK_FLAG_DISABLE_AUTOSUSPEND),
2095 	DEVICE_FLG(0x17aa, 0x104d, /* Lenovo ThinkStation P620 Internal Speaker + Front Headset */
2096 		   QUIRK_FLAG_DISABLE_AUTOSUSPEND),
2097 	DEVICE_FLG(0x1852, 0x5065, /* Luxman DA-06 */
2098 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
2099 	DEVICE_FLG(0x1901, 0x0191, /* GE B850V3 CP2114 audio interface */
2100 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2101 	DEVICE_FLG(0x2040, 0x7200, /* Hauppauge HVR-950Q */
2102 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2103 	DEVICE_FLG(0x2040, 0x7201, /* Hauppauge HVR-950Q-MXL */
2104 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2105 	DEVICE_FLG(0x2040, 0x7210, /* Hauppauge HVR-950Q */
2106 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2107 	DEVICE_FLG(0x2040, 0x7211, /* Hauppauge HVR-950Q-MXL */
2108 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2109 	DEVICE_FLG(0x2040, 0x7213, /* Hauppauge HVR-950Q */
2110 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2111 	DEVICE_FLG(0x2040, 0x7217, /* Hauppauge HVR-950Q */
2112 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2113 	DEVICE_FLG(0x2040, 0x721b, /* Hauppauge HVR-950Q */
2114 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2115 	DEVICE_FLG(0x2040, 0x721e, /* Hauppauge HVR-950Q */
2116 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2117 	DEVICE_FLG(0x2040, 0x721f, /* Hauppauge HVR-950Q */
2118 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2119 	DEVICE_FLG(0x2040, 0x7240, /* Hauppauge HVR-850 */
2120 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2121 	DEVICE_FLG(0x2040, 0x7260, /* Hauppauge HVR-950Q */
2122 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2123 	DEVICE_FLG(0x2040, 0x7270, /* Hauppauge HVR-950Q */
2124 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2125 	DEVICE_FLG(0x2040, 0x7280, /* Hauppauge HVR-950Q */
2126 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2127 	DEVICE_FLG(0x2040, 0x7281, /* Hauppauge HVR-950Q-MXL */
2128 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2129 	DEVICE_FLG(0x2040, 0x8200, /* Hauppauge Woodbury */
2130 		   QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER),
2131 	DEVICE_FLG(0x21b4, 0x0081, /* AudioQuest DragonFly */
2132 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2133 	DEVICE_FLG(0x2522, 0x0007, /* LH Labs Geek Out HD Audio 1V5 */
2134 		   QUIRK_FLAG_SET_IFACE_FIRST),
2135 	DEVICE_FLG(0x2708, 0x0002, /* Audient iD14 */
2136 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2137 	DEVICE_FLG(0x2912, 0x30c8, /* Audioengine D1 */
2138 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2139 	DEVICE_FLG(0x30be, 0x0101, /* Schiit Hel */
2140 		   QUIRK_FLAG_IGNORE_CTL_ERROR),
2141 	DEVICE_FLG(0x413c, 0xa506, /* Dell AE515 sound bar */
2142 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2143 	DEVICE_FLG(0x534d, 0x0021, /* MacroSilicon MS2100/MS2106 */
2144 		   QUIRK_FLAG_ALIGN_TRANSFER),
2145 	DEVICE_FLG(0x534d, 0x2109, /* MacroSilicon MS2109 */
2146 		   QUIRK_FLAG_ALIGN_TRANSFER),
2147 	DEVICE_FLG(0x1224, 0x2a25, /* Jieli Technology USB PHY 2.0 */
2148 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2149 	DEVICE_FLG(0x2b53, 0x0023, /* Fiero SC-01 (firmware v1.0.0 @ 48 kHz) */
2150 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2151 	DEVICE_FLG(0x2b53, 0x0024, /* Fiero SC-01 (firmware v1.0.0 @ 96 kHz) */
2152 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2153 	DEVICE_FLG(0x2b53, 0x0031, /* Fiero SC-01 (firmware v1.1.0) */
2154 		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
2155 	DEVICE_FLG(0x0525, 0xa4ad, /* Hamedal C20 usb camero */
2156 		   QUIRK_FLAG_IFACE_SKIP_CLOSE),
2157 	DEVICE_FLG(0x0ecb, 0x205c, /* JBL Quantum610 Wireless */
2158 		   QUIRK_FLAG_FIXED_RATE),
2159 	DEVICE_FLG(0x0ecb, 0x2069, /* JBL Quantum810 Wireless */
2160 		   QUIRK_FLAG_FIXED_RATE),
2161 
2162 	/* Vendor matches */
2163 	VENDOR_FLG(0x045e, /* MS Lifecam */
2164 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2165 	VENDOR_FLG(0x046d, /* Logitech */
2166 		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
2167 	VENDOR_FLG(0x047f, /* Plantronics */
2168 		   QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY),
2169 	VENDOR_FLG(0x0644, /* TEAC Corp. */
2170 		   QUIRK_FLAG_CTL_MSG_DELAY | QUIRK_FLAG_IFACE_DELAY),
2171 	VENDOR_FLG(0x07fd, /* MOTU */
2172 		   QUIRK_FLAG_VALIDATE_RATES),
2173 	VENDOR_FLG(0x1235, /* Focusrite Novation */
2174 		   QUIRK_FLAG_VALIDATE_RATES),
2175 	VENDOR_FLG(0x152a, /* Thesycon devices */
2176 		   QUIRK_FLAG_DSD_RAW),
2177 	VENDOR_FLG(0x1de7, /* Phoenix Audio */
2178 		   QUIRK_FLAG_GET_SAMPLE_RATE),
2179 	VENDOR_FLG(0x20b1, /* XMOS based devices */
2180 		   QUIRK_FLAG_DSD_RAW),
2181 	VENDOR_FLG(0x22d9, /* Oppo */
2182 		   QUIRK_FLAG_DSD_RAW),
2183 	VENDOR_FLG(0x23ba, /* Playback Design */
2184 		   QUIRK_FLAG_CTL_MSG_DELAY | QUIRK_FLAG_IFACE_DELAY |
2185 		   QUIRK_FLAG_DSD_RAW),
2186 	VENDOR_FLG(0x25ce, /* Mytek devices */
2187 		   QUIRK_FLAG_DSD_RAW),
2188 	VENDOR_FLG(0x278b, /* Rotel? */
2189 		   QUIRK_FLAG_DSD_RAW),
2190 	VENDOR_FLG(0x292b, /* Gustard/Ess based devices */
2191 		   QUIRK_FLAG_DSD_RAW),
2192 	VENDOR_FLG(0x2972, /* FiiO devices */
2193 		   QUIRK_FLAG_DSD_RAW),
2194 	VENDOR_FLG(0x2ab6, /* T+A devices */
2195 		   QUIRK_FLAG_DSD_RAW),
2196 	VENDOR_FLG(0x3336, /* HEM devices */
2197 		   QUIRK_FLAG_DSD_RAW),
2198 	VENDOR_FLG(0x3353, /* Khadas devices */
2199 		   QUIRK_FLAG_DSD_RAW),
2200 	VENDOR_FLG(0x3842, /* EVGA */
2201 		   QUIRK_FLAG_DSD_RAW),
2202 	VENDOR_FLG(0xc502, /* HiBy devices */
2203 		   QUIRK_FLAG_DSD_RAW),
2204 
2205 	{} /* terminator */
2206 };
2207 
2208 void snd_usb_init_quirk_flags(struct snd_usb_audio *chip)
2209 {
2210 	const struct usb_audio_quirk_flags_table *p;
2211 
2212 	for (p = quirk_flags_table; p->id; p++) {
2213 		if (chip->usb_id == p->id ||
2214 		    (!USB_ID_PRODUCT(p->id) &&
2215 		     USB_ID_VENDOR(chip->usb_id) == USB_ID_VENDOR(p->id))) {
2216 			usb_audio_dbg(chip,
2217 				      "Set quirk_flags 0x%x for device %04x:%04x\n",
2218 				      p->flags, USB_ID_VENDOR(chip->usb_id),
2219 				      USB_ID_PRODUCT(chip->usb_id));
2220 			chip->quirk_flags |= p->flags;
2221 			return;
2222 		}
2223 	}
2224 }
2225