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ALSA: hda - Keep halting ALC5505 DSP
[linux-2.6-block.git] / sound / usb / quirks.c
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e5779998
DM		 1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15 */
16
17#include <linux/init.h>
36db0456 18#include <linux/slab.h>
e5779998
DM		 19#include <linux/usb.h>
20#include <linux/usb/audio.h>
aafe77cc 21#include <linux/usb/midi.h>
e5779998 22
9e38658f 23#include <sound/control.h>
e5779998
DM		 24#include <sound/core.h>
25#include <sound/info.h>
26#include <sound/pcm.h>
27
28#include "usbaudio.h"
29#include "card.h"
f0b5e634 30#include "mixer.h"
7b1eda22 31#include "mixer_quirks.h"
e5779998
DM		 32#include "midi.h"
33#include "quirks.h"
34#include "helper.h"
35#include "endpoint.h"
36#include "pcm.h"
3d8d4dcf 37#include "clock.h"
e8e8babf 38#include "stream.h"
e5779998
DM		 39
40/*
41 * handle the quirks for the contained interfaces
42 */
43static int create_composite_quirk(struct snd_usb_audio *chip,
44 struct usb_interface *iface,
45 struct usb_driver *driver,
46 const struct snd_usb_audio_quirk *quirk)
47{
48 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
49 int err;
50
51 for (quirk = quirk->data; quirk->ifnum >= 0; ++quirk) {
52 iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
53 if (!iface)
54 continue;
55 if (quirk->ifnum != probed_ifnum &&
56 usb_interface_claimed(iface))
57 continue;
58 err = snd_usb_create_quirk(chip, iface, driver, quirk);
59 if (err < 0)
60 return err;
61 if (quirk->ifnum != probed_ifnum)
62 usb_driver_claim_interface(driver, iface, (void *)-1L);
63 }
64 return 0;
65}
66
67static int ignore_interface_quirk(struct snd_usb_audio *chip,
68 struct usb_interface *iface,
69 struct usb_driver *driver,
70 const struct snd_usb_audio_quirk *quirk)
71{
72 return 0;
73}
74
75
76/*
77 * Allow alignment on audio sub-slot (channel samples) rather than
78 * on audio slots (audio frames)
79 */
80static int create_align_transfer_quirk(struct snd_usb_audio *chip,
81 struct usb_interface *iface,
82 struct usb_driver *driver,
83 const struct snd_usb_audio_quirk *quirk)
84{
85 chip->txfr_quirk = 1;
86 return 1; /* Continue with creating streams and mixer */
87}
88
89static int create_any_midi_quirk(struct snd_usb_audio *chip,
90 struct usb_interface *intf,
91 struct usb_driver *driver,
92 const struct snd_usb_audio_quirk *quirk)
93{
94 return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
95}
96
97/*
98 * create a stream for an interface with proper descriptors
99 */
100static int create_standard_audio_quirk(struct snd_usb_audio *chip,
101 struct usb_interface *iface,
102 struct usb_driver *driver,
103 const struct snd_usb_audio_quirk *quirk)
104{
105 struct usb_host_interface *alts;
106 struct usb_interface_descriptor *altsd;
107 int err;
108
109 alts = &iface->altsetting[0];
110 altsd = get_iface_desc(alts);
e8e8babf 111 err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
e5779998
DM		 112 if (err < 0) {
113 snd_printk(KERN_ERR "cannot setup if %d: error %d\n",
114 altsd->bInterfaceNumber, err);
115 return err;
116 }
117 /* reset the current interface */
118 usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
119 return 0;
120}
121
122/*
123 * create a stream for an endpoint/altsetting without proper descriptors
124 */
125static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
126 struct usb_interface *iface,
127 struct usb_driver *driver,
128 const struct snd_usb_audio_quirk *quirk)
129{
130 struct audioformat *fp;
131 struct usb_host_interface *alts;
132 int stream, err;
133 unsigned *rate_table = NULL;
134
135 fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
8866f405 136 if (!fp) {
e5779998
DM		 137 snd_printk(KERN_ERR "cannot memdup\n");
138 return -ENOMEM;
139 }
8866f405
XW		 140 if (fp->nr_rates > MAX_NR_RATES) {
141 kfree(fp);
142 return -EINVAL;
143 }
e5779998 144 if (fp->nr_rates > 0) {
43df2a57
TM		 145 rate_table = kmemdup(fp->rate_table,
146 sizeof(int) * fp->nr_rates, GFP_KERNEL);
e5779998
DM		 147 if (!rate_table) {
148 kfree(fp);
149 return -ENOMEM;
150 }
e5779998
DM		 151 fp->rate_table = rate_table;
152 }
153
154 stream = (fp->endpoint & USB_DIR_IN)
155 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
e8e8babf 156 err = snd_usb_add_audio_stream(chip, stream, fp);
e5779998
DM		 157 if (err < 0) {
158 kfree(fp);
159 kfree(rate_table);
160 return err;
161 }
162 if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
163 fp->altset_idx >= iface->num_altsetting) {
164 kfree(fp);
165 kfree(rate_table);
166 return -EINVAL;
167 }
168 alts = &iface->altsetting[fp->altset_idx];
59ea586f
MH		 169 if (fp->datainterval == 0)
170 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
171 if (fp->maxpacksize == 0)
172 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
e5779998 173 usb_set_interface(chip->dev, fp->iface, 0);
767d75ad
DM		 174 snd_usb_init_pitch(chip, fp->iface, alts, fp);
175 snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
e5779998
DM		 176 return 0;
177}
178
aafe77cc
CL		 179static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
180 struct usb_interface *iface,
181 struct usb_driver *driver)
182{
183 struct usb_host_interface *alts;
184 struct usb_interface_descriptor *altsd;
185 struct usb_endpoint_descriptor *epd;
186 struct uac1_as_header_descriptor *ashd;
187 struct uac_format_type_i_discrete_descriptor *fmtd;
188
189 /*
190 * Most Roland/Yamaha audio streaming interfaces have more or less
191 * standard descriptors, but older devices might lack descriptors, and
192 * future ones might change, so ensure that we fail silently if the
193 * interface doesn't look exactly right.
194 */
195
196 /* must have a non-zero altsetting for streaming */
197 if (iface->num_altsetting < 2)
198 return -ENODEV;
199 alts = &iface->altsetting[1];
200 altsd = get_iface_desc(alts);
201
202 /* must have an isochronous endpoint for streaming */
203 if (altsd->bNumEndpoints < 1)
204 return -ENODEV;
205 epd = get_endpoint(alts, 0);
206 if (!usb_endpoint_xfer_isoc(epd))
207 return -ENODEV;
208
209 /* must have format descriptors */
210 ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
211 UAC_AS_GENERAL);
212 fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
213 UAC_FORMAT_TYPE);
214 if (!ashd || ashd->bLength < 7 ||
215 !fmtd || fmtd->bLength < 8)
216 return -ENODEV;
217
218 return create_standard_audio_quirk(chip, iface, driver, NULL);
219}
220
221static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
222 struct usb_interface *iface,
223 struct usb_driver *driver,
224 struct usb_host_interface *alts)
225{
226 static const struct snd_usb_audio_quirk yamaha_midi_quirk = {
227 .type = QUIRK_MIDI_YAMAHA
228 };
229 struct usb_midi_in_jack_descriptor *injd;
230 struct usb_midi_out_jack_descriptor *outjd;
231
232 /* must have some valid jack descriptors */
233 injd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
234 NULL, USB_MS_MIDI_IN_JACK);
235 outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
236 NULL, USB_MS_MIDI_OUT_JACK);
237 if (!injd && !outjd)
238 return -ENODEV;
239 if (injd && (injd->bLength < 5 ||
240 (injd->bJackType != USB_MS_EMBEDDED &&
241 injd->bJackType != USB_MS_EXTERNAL)))
242 return -ENODEV;
243 if (outjd && (outjd->bLength < 6 ||
244 (outjd->bJackType != USB_MS_EMBEDDED &&
245 outjd->bJackType != USB_MS_EXTERNAL)))
246 return -ENODEV;
247 return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk);
248}
249
250static int create_roland_midi_quirk(struct snd_usb_audio *chip,
251 struct usb_interface *iface,
252 struct usb_driver *driver,
253 struct usb_host_interface *alts)
254{
255 static const struct snd_usb_audio_quirk roland_midi_quirk = {
256 .type = QUIRK_MIDI_ROLAND
257 };
258 u8 *roland_desc = NULL;
259
260 /* might have a vendor-specific descriptor <06 24 F1 02 ...> */
261 for (;;) {
262 roland_desc = snd_usb_find_csint_desc(alts->extra,
263 alts->extralen,
264 roland_desc, 0xf1);
265 if (!roland_desc)
266 return -ENODEV;
267 if (roland_desc[0] < 6 || roland_desc[3] != 2)
268 continue;
269 return create_any_midi_quirk(chip, iface, driver,
270 &roland_midi_quirk);
271 }
272}
273
274static int create_std_midi_quirk(struct snd_usb_audio *chip,
275 struct usb_interface *iface,
276 struct usb_driver *driver,
277 struct usb_host_interface *alts)
278{
279 struct usb_ms_header_descriptor *mshd;
280 struct usb_ms_endpoint_descriptor *msepd;
281
282 /* must have the MIDIStreaming interface header descriptor*/
283 mshd = (struct usb_ms_header_descriptor *)alts->extra;
284 if (alts->extralen < 7 ||
285 mshd->bLength < 7 ||
286 mshd->bDescriptorType != USB_DT_CS_INTERFACE ||
287 mshd->bDescriptorSubtype != USB_MS_HEADER)
288 return -ENODEV;
289 /* must have the MIDIStreaming endpoint descriptor*/
290 msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra;
291 if (alts->endpoint[0].extralen < 4 ||
292 msepd->bLength < 4 ||
293 msepd->bDescriptorType != USB_DT_CS_ENDPOINT ||
294 msepd->bDescriptorSubtype != UAC_MS_GENERAL ||
295 msepd->bNumEmbMIDIJack < 1 ||
296 msepd->bNumEmbMIDIJack > 16)
297 return -ENODEV;
298
299 return create_any_midi_quirk(chip, iface, driver, NULL);
300}
301
302static int create_auto_midi_quirk(struct snd_usb_audio *chip,
303 struct usb_interface *iface,
304 struct usb_driver *driver)
305{
306 struct usb_host_interface *alts;
307 struct usb_interface_descriptor *altsd;
308 struct usb_endpoint_descriptor *epd;
309 int err;
310
311 alts = &iface->altsetting[0];
312 altsd = get_iface_desc(alts);
313
314 /* must have at least one bulk/interrupt endpoint for streaming */
315 if (altsd->bNumEndpoints < 1)
316 return -ENODEV;
317 epd = get_endpoint(alts, 0);
318 if (!usb_endpoint_xfer_bulk(epd) ||
319 !usb_endpoint_xfer_int(epd))
320 return -ENODEV;
321
322 switch (USB_ID_VENDOR(chip->usb_id)) {
323 case 0x0499: /* Yamaha */
324 err = create_yamaha_midi_quirk(chip, iface, driver, alts);
325 if (err < 0 && err != -ENODEV)
326 return err;
327 break;
328 case 0x0582: /* Roland */
329 err = create_roland_midi_quirk(chip, iface, driver, alts);
330 if (err < 0 && err != -ENODEV)
331 return err;
332 break;
333 }
334
335 return create_std_midi_quirk(chip, iface, driver, alts);
336}
337
338static int create_autodetect_quirk(struct snd_usb_audio *chip,
339 struct usb_interface *iface,
b1ce7ba6 340 struct usb_driver *driver)
aafe77cc
CL		 341{
342 int err;
343
344 err = create_auto_pcm_quirk(chip, iface, driver);
345 if (err == -ENODEV)
346 err = create_auto_midi_quirk(chip, iface, driver);
347 return err;
348}
349
b1ce7ba6
CL		 350static int create_autodetect_quirks(struct snd_usb_audio *chip,
351 struct usb_interface *iface,
352 struct usb_driver *driver,
353 const struct snd_usb_audio_quirk *quirk)
354{
355 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
356 int ifcount, ifnum, err;
357
358 err = create_autodetect_quirk(chip, iface, driver);
359 if (err < 0)
360 return err;
361
362 /*
363 * ALSA PCM playback/capture devices cannot be registered in two steps,
364 * so we have to claim the other corresponding interface here.
365 */
366 ifcount = chip->dev->actconfig->desc.bNumInterfaces;
367 for (ifnum = 0; ifnum < ifcount; ifnum++) {
368 if (ifnum == probed_ifnum || quirk->ifnum >= 0)
369 continue;
370 iface = usb_ifnum_to_if(chip->dev, ifnum);
371 if (!iface ||
372 usb_interface_claimed(iface) ||
373 get_iface_desc(iface->altsetting)->bInterfaceClass !=
374 USB_CLASS_VENDOR_SPEC)
375 continue;
376
377 err = create_autodetect_quirk(chip, iface, driver);
378 if (err >= 0)
379 usb_driver_claim_interface(driver, iface, (void *)-1L);
380 }
381
382 return 0;
383}
384
e5779998
DM		 385/*
386 * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
387 * The only way to detect the sample rate is by looking at wMaxPacketSize.
388 */
389static int create_uaxx_quirk(struct snd_usb_audio *chip,
390 struct usb_interface *iface,
391 struct usb_driver *driver,
392 const struct snd_usb_audio_quirk *quirk)
393{
394 static const struct audioformat ua_format = {
015eb0b0 395 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
e5779998
DM		 396 .channels = 2,
397 .fmt_type = UAC_FORMAT_TYPE_I,
398 .altsetting = 1,
399 .altset_idx = 1,
400 .rates = SNDRV_PCM_RATE_CONTINUOUS,
401 };
402 struct usb_host_interface *alts;
403 struct usb_interface_descriptor *altsd;
404 struct audioformat *fp;
405 int stream, err;
406
407 /* both PCM and MIDI interfaces have 2 or more altsettings */
408 if (iface->num_altsetting < 2)
409 return -ENXIO;
410 alts = &iface->altsetting[1];
411 altsd = get_iface_desc(alts);
412
413 if (altsd->bNumEndpoints == 2) {
414 static const struct snd_usb_midi_endpoint_info ua700_ep = {
415 .out_cables = 0x0003,
416 .in_cables = 0x0003
417 };
418 static const struct snd_usb_audio_quirk ua700_quirk = {
419 .type = QUIRK_MIDI_FIXED_ENDPOINT,
420 .data = &ua700_ep
421 };
422 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
423 .out_cables = 0x0001,
424 .in_cables = 0x0001
425 };
426 static const struct snd_usb_audio_quirk uaxx_quirk = {
427 .type = QUIRK_MIDI_FIXED_ENDPOINT,
428 .data = &uaxx_ep
429 };
430 const struct snd_usb_audio_quirk *quirk =
431 chip->usb_id == USB_ID(0x0582, 0x002b)
432 ? &ua700_quirk : &uaxx_quirk;
433 return snd_usbmidi_create(chip->card, iface,
434 &chip->midi_list, quirk);
435 }
436
437 if (altsd->bNumEndpoints != 1)
438 return -ENXIO;
439
43df2a57 440 fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
e5779998
DM		 441 if (!fp)
442 return -ENOMEM;
e5779998
DM		 443
444 fp->iface = altsd->bInterfaceNumber;
445 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
446 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
447 fp->datainterval = 0;
448 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
449
450 switch (fp->maxpacksize) {
451 case 0x120:
452 fp->rate_max = fp->rate_min = 44100;
453 break;
454 case 0x138:
455 case 0x140:
456 fp->rate_max = fp->rate_min = 48000;
457 break;
458 case 0x258:
459 case 0x260:
460 fp->rate_max = fp->rate_min = 96000;
461 break;
462 default:
463 snd_printk(KERN_ERR "unknown sample rate\n");
464 kfree(fp);
465 return -ENXIO;
466 }
467
468 stream = (fp->endpoint & USB_DIR_IN)
469 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
e8e8babf 470 err = snd_usb_add_audio_stream(chip, stream, fp);
e5779998
DM		 471 if (err < 0) {
472 kfree(fp);
473 return err;
474 }
475 usb_set_interface(chip->dev, fp->iface, 0);
476 return 0;
477}
478
014950b0
DM		 479/*
480 * Create a standard mixer for the specified interface.
481 */
482static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
483 struct usb_interface *iface,
484 struct usb_driver *driver,
485 const struct snd_usb_audio_quirk *quirk)
486{
487 if (quirk->ifnum < 0)
488 return 0;
489
490 return snd_usb_create_mixer(chip, quirk->ifnum, 0);
491}
492
e5779998
DM		 493/*
494 * audio-interface quirks
495 *
496 * returns zero if no standard audio/MIDI parsing is needed.
25985edc 497 * returns a positive value if standard audio/midi interfaces are parsed
e5779998
DM		 498 * after this.
499 * returns a negative value at error.
500 */
501int snd_usb_create_quirk(struct snd_usb_audio *chip,
502 struct usb_interface *iface,
503 struct usb_driver *driver,
504 const struct snd_usb_audio_quirk *quirk)
505{
506 typedef int (*quirk_func_t)(struct snd_usb_audio *,
507 struct usb_interface *,
508 struct usb_driver *,
509 const struct snd_usb_audio_quirk *);
510 static const quirk_func_t quirk_funcs[] = {
511 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
512 [QUIRK_COMPOSITE] = create_composite_quirk,
b1ce7ba6 513 [QUIRK_AUTODETECT] = create_autodetect_quirks,
e5779998
DM		 514 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
515 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
516 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
aafe77cc 517 [QUIRK_MIDI_ROLAND] = create_any_midi_quirk,
e5779998
DM		 518 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
519 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
c7f57216 520 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
e5779998
DM		 521 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
522 [QUIRK_MIDI_CME] = create_any_midi_quirk,
4434ade8 523 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
1ef0e0a0 524 [QUIRK_MIDI_FTDI] = create_any_midi_quirk,
e5779998
DM		 525 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
526 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
527 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
014950b0
DM		 528 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
529 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
e5779998
DM		 530 };
531
532 if (quirk->type < QUIRK_TYPE_COUNT) {
533 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
534 } else {
535 snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
536 return -ENXIO;
537 }
538}
539
540/*
541 * boot quirks
542 */
543
544#define EXTIGY_FIRMWARE_SIZE_OLD 794
545#define EXTIGY_FIRMWARE_SIZE_NEW 483
546
547static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
548{
549 struct usb_host_config *config = dev->actconfig;
550 int err;
551
552 if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
553 le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
554 snd_printdd("sending Extigy boot sequence...\n");
555 /* Send message to force it to reconnect with full interface. */
556 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
17d900c4 557 0x10, 0x43, 0x0001, 0x000a, NULL, 0);
e5779998
DM		 558 if (err < 0) snd_printdd("error sending boot message: %d\n", err);
559 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
560 &dev->descriptor, sizeof(dev->descriptor));
561 config = dev->actconfig;
562 if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
563 err = usb_reset_configuration(dev);
564 if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
565 snd_printdd("extigy_boot: new boot length = %d\n",
566 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
567 return -ENODEV; /* quit this anyway */
568 }
569 return 0;
570}
571
572static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
573{
574 u8 buf = 1;
575
576 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
577 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
17d900c4 578 0, 0, &buf, 1);
e5779998
DM		 579 if (buf == 0) {
580 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
581 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
17d900c4 582 1, 2000, NULL, 0);
e5779998
DM		 583 return -ENODEV;
584 }
585 return 0;
586}
587
0f5733b0
GP		 588static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
589{
590 int err;
591
592 if (dev->actconfig->desc.bConfigurationValue == 1) {
593 snd_printk(KERN_INFO "usb-audio: "
594 "Fast Track Pro switching to config #2\n");
595 /* This function has to be available by the usb core module.
596 * if it is not avialable the boot quirk has to be left out
597 * and the configuration has to be set by udev or hotplug
598 * rules
599 */
600 err = usb_driver_set_configuration(dev, 2);
b98ae272 601 if (err < 0)
0f5733b0
GP		 602 snd_printdd("error usb_driver_set_configuration: %d\n",
603 err);
b98ae272
DH		 604 /* Always return an error, so that we stop creating a device
605 that will just be destroyed and recreated with a new
606 configuration */
607 return -ENODEV;
0f5733b0
GP		 608 } else
609 snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n");
610
611 return 0;
612}
613
e5779998
DM		 614/*
615 * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
616 * documented in the device's data sheet.
617 */
618static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
619{
620 u8 buf[4];
621 buf[0] = 0x20;
622 buf[1] = value & 0xff;
623 buf[2] = (value >> 8) & 0xff;
624 buf[3] = reg;
625 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
626 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
17d900c4 627 0, 0, &buf, 4);
e5779998
DM		 628}
629
630static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
631{
632 /*
633 * Enable line-out driver mode, set headphone source to front
634 * channels, enable stereo mic.
635 */
636 return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
637}
638
639/*
640 * C-Media CM6206 is based on CM106 with two additional
641 * registers that are not documented in the data sheet.
642 * Values here are chosen based on sniffing USB traffic
643 * under Windows.
644 */
645static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
646{
dac8f847 647 int err = 0, reg;
157186bc 648 int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
e5779998
DM		 649
650 for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
651 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
652 if (err < 0)
653 return err;
654 }
655
656 return err;
657}
658
5e212332
MH		 659/*
660 * Novation Twitch DJ controller
661 */
662static int snd_usb_twitch_boot_quirk(struct usb_device *dev)
663{
664 /* preemptively set up the device because otherwise the
665 * raw MIDI endpoints are not active */
666 usb_set_interface(dev, 0, 1);
667 return 0;
668}
669
e5779998
DM		 670/*
671 * This call will put the synth in "USB send" mode, i.e it will send MIDI
672 * messages through USB (this is disabled at startup). The synth will
673 * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
674 * sign on its LCD. Values here are chosen based on sniffing USB traffic
675 * under Windows.
676 */
677static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
678{
679 int err, actual_length;
680
681 /* "midi send" enable */
682 static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
683
684 void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
685 if (!buf)
686 return -ENOMEM;
687 err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
688 ARRAY_SIZE(seq), &actual_length, 1000);
689 kfree(buf);
690 if (err < 0)
691 return err;
692
693 return 0;
694}
695
54a8c500
DM		 696/*
697 * Some sound cards from Native Instruments are in fact compliant to the USB
698 * audio standard of version 2 and other approved USB standards, even though
699 * they come up as vendor-specific device when first connected.
700 *
701 * However, they can be told to come up with a new set of descriptors
702 * upon their next enumeration, and the interfaces announced by the new
703 * descriptors will then be handled by the kernel's class drivers. As the
704 * product ID will also change, no further checks are required.
705 */
706
707static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
708{
709 int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
710 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
889d6684 711 1, 0, NULL, 0, 1000);
54a8c500
DM		 712
713 if (ret < 0)
714 return ret;
715
716 usb_reset_device(dev);
717
718 /* return -EAGAIN, so the creation of an audio interface for this
719 * temporary device is aborted. The device will reconnect with a
720 * new product ID */
721 return -EAGAIN;
722}
723
cb99864d
DZ		 724static void mbox2_setup_48_24_magic(struct usb_device *dev)
725{
726 u8 srate[3];
727 u8 temp[12];
728
729 /* Choose 48000Hz permanently */
730 srate[0] = 0x80;
731 srate[1] = 0xbb;
732 srate[2] = 0x00;
733
734 /* Send the magic! */
735 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
736 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
737 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
738 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
739 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
740 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
741 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
742 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
743 return;
744}
745
746/* Digidesign Mbox 2 needs to load firmware onboard
747 * and driver must wait a few seconds for initialisation.
748 */
749
750#define MBOX2_FIRMWARE_SIZE 646
751#define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */
752#define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */
753
b7b435e8 754static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
cb99864d
DZ		 755{
756 struct usb_host_config *config = dev->actconfig;
757 int err;
4909a0ca 758 u8 bootresponse[0x12];
cb99864d
DZ		 759 int fwsize;
760 int count;
761
762 fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
763
764 if (fwsize != MBOX2_FIRMWARE_SIZE) {
765 snd_printk(KERN_ERR "usb-audio: Invalid firmware size=%d.\n", fwsize);
766 return -ENODEV;
767 }
768
769 snd_printd("usb-audio: Sending Digidesign Mbox 2 boot sequence...\n");
770
771 count = 0;
b7b435e8
DZ		 772 bootresponse[0] = MBOX2_BOOT_LOADING;
773 while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
cb99864d
DZ		 774 msleep(500); /* 0.5 second delay */
775 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
776 /* Control magic - load onboard firmware */
777 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
b7b435e8 778 if (bootresponse[0] == MBOX2_BOOT_READY)
cb99864d
DZ		 779 break;
780 snd_printd("usb-audio: device not ready, resending boot sequence...\n");
781 count++;
782 }
783
b7b435e8
DZ		 784 if (bootresponse[0] != MBOX2_BOOT_READY) {
785 snd_printk(KERN_ERR "usb-audio: Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
cb99864d
DZ		 786 return -ENODEV;
787 }
788
789 snd_printdd("usb-audio: device initialised!\n");
790
791 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
792 &dev->descriptor, sizeof(dev->descriptor));
793 config = dev->actconfig;
794 if (err < 0)
795 snd_printd("error usb_get_descriptor: %d\n", err);
796
797 err = usb_reset_configuration(dev);
798 if (err < 0)
799 snd_printd("error usb_reset_configuration: %d\n", err);
800 snd_printdd("mbox2_boot: new boot length = %d\n",
801 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
802
803 mbox2_setup_48_24_magic(dev);
804
805 snd_printk(KERN_INFO "usb-audio: Digidesign Mbox 2: 24bit 48kHz");
806
807 return 0; /* Successful boot */
808}
809
e5779998
DM		 810/*
811 * Setup quirks
812 */
0f5733b0
GP		 813#define MAUDIO_SET 0x01 /* parse device_setup */
814#define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */
815#define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */
816#define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
817#define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */
818#define MAUDIO_SET_DI 0x10 /* enable Digital Input */
819#define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */
820#define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */
821#define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
822#define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */
823#define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
824
825static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
826 int iface, int altno)
827{
828 /* Reset ALL ifaces to 0 altsetting.
829 * Call it for every possible altsetting of every interface.
830 */
831 usb_set_interface(chip->dev, iface, 0);
832 if (chip->setup & MAUDIO_SET) {
833 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
834 if (iface != 1 && iface != 2)
835 return 1; /* skip all interfaces but 1 and 2 */
836 } else {
837 unsigned int mask;
838 if (iface == 1 || iface == 2)
839 return 1; /* skip interfaces 1 and 2 */
840 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
841 return 1; /* skip this altsetting */
842 mask = chip->setup & MAUDIO_SET_MASK;
843 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
844 return 1; /* skip this altsetting */
845 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
846 return 1; /* skip this altsetting */
847 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
848 return 1; /* skip this altsetting */
849 }
850 }
851 snd_printdd(KERN_INFO
852 "using altsetting %d for interface %d config %d\n",
853 altno, iface, chip->setup);
854 return 0; /* keep this altsetting */
855}
e5779998
DM		 856
857static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
858 int iface,
859 int altno)
860{
861 /* Reset ALL ifaces to 0 altsetting.
862 * Call it for every possible altsetting of every interface.
863 */
864 usb_set_interface(chip->dev, iface, 0);
865
0f5733b0
GP		 866 if (chip->setup & MAUDIO_SET) {
867 unsigned int mask;
868 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
e5779998 869 return 1; /* skip this altsetting */
0f5733b0 870 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
e5779998 871 return 1; /* skip this altsetting */
0f5733b0
GP		 872 mask = chip->setup & MAUDIO_SET_MASK;
873 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
e5779998 874 return 1; /* skip this altsetting */
0f5733b0 875 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
e5779998 876 return 1; /* skip this altsetting */
0f5733b0 877 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
e5779998 878 return 1; /* skip this altsetting */
0f5733b0 879 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
e5779998
DM		 880 return 1; /* skip this altsetting */
881 }
882
883 return 0; /* keep this altsetting */
884}
885
0f5733b0
GP		 886static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
887 int iface, int altno)
888{
889 /* Reset ALL ifaces to 0 altsetting.
890 * Call it for every possible altsetting of every interface.
891 */
892 usb_set_interface(chip->dev, iface, 0);
893
894 /* possible configuration where both inputs and only one output is
895 *used is not supported by the current setup
896 */
897 if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
898 if (chip->setup & MAUDIO_SET_96K) {
899 if (altno != 3 && altno != 6)
900 return 1;
901 } else if (chip->setup & MAUDIO_SET_DI) {
902 if (iface == 4)
903 return 1; /* no analog input */
904 if (altno != 2 && altno != 5)
905 return 1; /* enable only altsets 2 and 5 */
906 } else {
907 if (iface == 5)
908 return 1; /* disable digialt input */
909 if (altno != 2 && altno != 5)
910 return 1; /* enalbe only altsets 2 and 5 */
911 }
912 } else {
913 /* keep only 16-Bit mode */
914 if (altno != 1)
915 return 1;
916 }
917
918 snd_printdd(KERN_INFO
919 "using altsetting %d for interface %d config %d\n",
920 altno, iface, chip->setup);
921 return 0; /* keep this altsetting */
922}
923
e5779998
DM		 924int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
925 int iface,
926 int altno)
927{
928 /* audiophile usb: skip altsets incompatible with device_setup */
929 if (chip->usb_id == USB_ID(0x0763, 0x2003))
930 return audiophile_skip_setting_quirk(chip, iface, altno);
0f5733b0
GP		 931 /* quattro usb: skip altsets incompatible with device_setup */
932 if (chip->usb_id == USB_ID(0x0763, 0x2001))
933 return quattro_skip_setting_quirk(chip, iface, altno);
934 /* fasttrackpro usb: skip altsets incompatible with device_setup */
935 if (chip->usb_id == USB_ID(0x0763, 0x2012))
936 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
e5779998
DM		 937
938 return 0;
939}
940
941int snd_usb_apply_boot_quirk(struct usb_device *dev,
942 struct usb_interface *intf,
943 const struct snd_usb_audio_quirk *quirk)
944{
945 u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
946 le16_to_cpu(dev->descriptor.idProduct));
947
3347b26c
DM		 948 switch (id) {
949 case USB_ID(0x041e, 0x3000):
950 /* SB Extigy needs special boot-up sequence */
951 /* if more models come, this will go to the quirk list. */
e5779998
DM		 952 return snd_usb_extigy_boot_quirk(dev, intf);
953
3347b26c
DM		 954 case USB_ID(0x041e, 0x3020):
955 /* SB Audigy 2 NX needs its own boot-up magic, too */
e5779998
DM		 956 return snd_usb_audigy2nx_boot_quirk(dev);
957
3347b26c
DM		 958 case USB_ID(0x10f5, 0x0200):
959 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
e5779998
DM		 960 return snd_usb_cm106_boot_quirk(dev);
961
3347b26c
DM		 962 case USB_ID(0x0d8c, 0x0102):
963 /* C-Media CM6206 / CM106-Like Sound Device */
8129e79e 964 case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
e5779998
DM		 965 return snd_usb_cm6206_boot_quirk(dev);
966
cb99864d
DZ		 967 case USB_ID(0x0dba, 0x3000):
968 /* Digidesign Mbox 2 */
969 return snd_usb_mbox2_boot_quirk(dev);
970
5e212332
MH		 971 case USB_ID(0x1235, 0x0018):
972 /* Focusrite Novation Twitch */
973 return snd_usb_twitch_boot_quirk(dev);
974
3347b26c
DM		 975 case USB_ID(0x133e, 0x0815):
976 /* Access Music VirusTI Desktop */
e5779998
DM		 977 return snd_usb_accessmusic_boot_quirk(dev);
978
759e890f 979 case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
3347b26c
DM		 980 case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
981 case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
54a8c500 982 return snd_usb_nativeinstruments_boot_quirk(dev);
0f5733b0
GP		 983 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
984 return snd_usb_fasttrackpro_boot_quirk(dev);
3347b26c 985 }
54a8c500 986
e5779998
DM		 987 return 0;
988}
989
990/*
991 * check if the device uses big-endian samples
992 */
993int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
994{
48fc7f7e 995 /* it depends on altsetting whether the device is big-endian or not */
e5779998
DM		 996 switch (chip->usb_id) {
997 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
0f5733b0
GP		 998 if (fp->altsetting == 2 || fp->altsetting == 3 ||
999 fp->altsetting == 5 || fp->altsetting == 6)
e5779998
DM		 1000 return 1;
1001 break;
1002 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1003 if (chip->setup == 0x00 ||
0f5733b0
GP		 1004 fp->altsetting == 1 || fp->altsetting == 2 ||
1005 fp->altsetting == 3)
1006 return 1;
1007 break;
1008 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1009 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1010 fp->altsetting == 5 || fp->altsetting == 6)
e5779998 1011 return 1;
0f5733b0 1012 break;
e5779998
DM		 1013 }
1014 return 0;
1015}
1016
1017/*
1cdfa9f3 1018 * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
e5779998
DM		 1019 * not for interface.
1020 */
1021
1022enum {
1023 EMU_QUIRK_SR_44100HZ = 0,
1024 EMU_QUIRK_SR_48000HZ,
1025 EMU_QUIRK_SR_88200HZ,
1026 EMU_QUIRK_SR_96000HZ,
1027 EMU_QUIRK_SR_176400HZ,
1028 EMU_QUIRK_SR_192000HZ
1029};
1030
1031static void set_format_emu_quirk(struct snd_usb_substream *subs,
1032 struct audioformat *fmt)
1033{
1034 unsigned char emu_samplerate_id = 0;
1035
1036 /* When capture is active
1037 * sample rate shouldn't be changed
1038 * by playback substream
1039 */
1040 if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1041 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
1042 return;
1043 }
1044
1045 switch (fmt->rate_min) {
1046 case 48000:
1047 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1048 break;
1049 case 88200:
1050 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1051 break;
1052 case 96000:
1053 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1054 break;
1055 case 176400:
1056 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1057 break;
1058 case 192000:
1059 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1060 break;
1061 default:
1062 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1063 break;
1064 }
1065 snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1539d4f8 1066 subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
e5779998
DM		 1067}
1068
1069void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1070 struct audioformat *fmt)
1071{
1072 switch (subs->stream->chip->usb_id) {
1073 case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1074 case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1075 case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1cdfa9f3 1076 case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
e5779998
DM		 1077 set_format_emu_quirk(subs, fmt);
1078 break;
1079 }
1080}
1081
2b58fd5b
DM		 1082void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1083{
1084 /*
1085 * "Playback Design" products send bogus feedback data at the start
1086 * of the stream. Ignore them.
1087 */
1088 if ((le16_to_cpu(ep->chip->dev->descriptor.idVendor) == 0x23ba) &&
1089 ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1090 ep->skip_packets = 4;
83e3acd4
EZ		 1091
1092 /*
e9a25e04
MG		 1093 * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1094 * world latency varies by approx. +/- 50 frames (at 96KHz) each time
1095 * the stream is (re)started. When skipping packets 16 at endpoint
1096 * start up, the real world latency is stable within +/- 1 frame (also
83e3acd4
EZ		 1097 * across power cycles).
1098 */
e9a25e04
MG		 1099 if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1100 ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
83e3acd4
EZ		 1101 ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1102 ep->skip_packets = 16;
2b58fd5b
DM		 1103}
1104
21bb5aaf
DM		 1105void snd_usb_set_interface_quirk(struct usb_device *dev)
1106{
1107 /*
1108 * "Playback Design" products need a 50ms delay after setting the
1109 * USB interface.
1110 */
1111 if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
1112 mdelay(50);
1113}
1114
2b58fd5b
DM		 1115void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1116 __u8 request, __u8 requesttype, __u16 value,
1117 __u16 index, void *data, __u16 size)
1118{
1119 /*
1120 * "Playback Design" products need a 20ms delay after each
1121 * class compliant request
1122 */
1123 if ((le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) &&
1124 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1125 mdelay(20);
1126}
1127
126825e7
DM		 1128/*
1129 * snd_usb_interface_dsd_format_quirks() is called from format.c to
1130 * augment the PCM format bit-field for DSD types. The UAC standards
1131 * don't have a designated bit field to denote DSD-capable interfaces,
1132 * hence all hardware that is known to support this format has to be
1133 * listed here.
1134 */
1135u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1136 struct audioformat *fp,
1137 unsigned int sample_bytes)
1138{
1139 /* Playback Designs */
1140 if (le16_to_cpu(chip->dev->descriptor.idVendor) == 0x23ba) {
1141 switch (fp->altsetting) {
1142 case 1:
1143 fp->dsd_dop = true;
1144 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1145 case 2:
1146 fp->dsd_bitrev = true;
1147 return SNDRV_PCM_FMTBIT_DSD_U8;
1148 case 3:
1149 fp->dsd_bitrev = true;
1150 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1151 }
1152 }
1153
1154 return 0;
1155}
Linux 6.x block layer and io_uring tree(s)