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ALSA: hda - Add mute LED control for Lenovo Ideapad Z560
[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 112 if (err < 0) {
0ba41d91 113 usb_audio_err(chip, "cannot setup if %d: error %d\n",
e5779998
DM		 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;
42d4ab83 132 struct usb_interface_descriptor *altsd;
e5779998
DM		 133 int stream, err;
134 unsigned *rate_table = NULL;
135
136 fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
8866f405 137 if (!fp) {
0ba41d91 138 usb_audio_err(chip, "cannot memdup\n");
e5779998
DM		 139 return -ENOMEM;
140 }
8866f405
XW		 141 if (fp->nr_rates > MAX_NR_RATES) {
142 kfree(fp);
143 return -EINVAL;
144 }
e5779998 145 if (fp->nr_rates > 0) {
43df2a57
TM		 146 rate_table = kmemdup(fp->rate_table,
147 sizeof(int) * fp->nr_rates, GFP_KERNEL);
e5779998
DM		 148 if (!rate_table) {
149 kfree(fp);
150 return -ENOMEM;
151 }
e5779998
DM		 152 fp->rate_table = rate_table;
153 }
154
155 stream = (fp->endpoint & USB_DIR_IN)
156 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
e8e8babf 157 err = snd_usb_add_audio_stream(chip, stream, fp);
e5779998
DM		 158 if (err < 0) {
159 kfree(fp);
160 kfree(rate_table);
161 return err;
162 }
163 if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
164 fp->altset_idx >= iface->num_altsetting) {
165 kfree(fp);
166 kfree(rate_table);
167 return -EINVAL;
168 }
169 alts = &iface->altsetting[fp->altset_idx];
42d4ab83
EZ		 170 altsd = get_iface_desc(alts);
171 fp->protocol = altsd->bInterfaceProtocol;
172
59ea586f
MH		 173 if (fp->datainterval == 0)
174 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
175 if (fp->maxpacksize == 0)
176 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
e5779998 177 usb_set_interface(chip->dev, fp->iface, 0);
767d75ad
DM		 178 snd_usb_init_pitch(chip, fp->iface, alts, fp);
179 snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
e5779998
DM		 180 return 0;
181}
182
aafe77cc
CL		 183static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
184 struct usb_interface *iface,
185 struct usb_driver *driver)
186{
187 struct usb_host_interface *alts;
188 struct usb_interface_descriptor *altsd;
189 struct usb_endpoint_descriptor *epd;
190 struct uac1_as_header_descriptor *ashd;
191 struct uac_format_type_i_discrete_descriptor *fmtd;
192
193 /*
194 * Most Roland/Yamaha audio streaming interfaces have more or less
195 * standard descriptors, but older devices might lack descriptors, and
196 * future ones might change, so ensure that we fail silently if the
197 * interface doesn't look exactly right.
198 */
199
200 /* must have a non-zero altsetting for streaming */
201 if (iface->num_altsetting < 2)
202 return -ENODEV;
203 alts = &iface->altsetting[1];
204 altsd = get_iface_desc(alts);
205
206 /* must have an isochronous endpoint for streaming */
207 if (altsd->bNumEndpoints < 1)
208 return -ENODEV;
209 epd = get_endpoint(alts, 0);
210 if (!usb_endpoint_xfer_isoc(epd))
211 return -ENODEV;
212
213 /* must have format descriptors */
214 ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
215 UAC_AS_GENERAL);
216 fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
217 UAC_FORMAT_TYPE);
218 if (!ashd || ashd->bLength < 7 ||
219 !fmtd || fmtd->bLength < 8)
220 return -ENODEV;
221
222 return create_standard_audio_quirk(chip, iface, driver, NULL);
223}
224
225static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
226 struct usb_interface *iface,
227 struct usb_driver *driver,
228 struct usb_host_interface *alts)
229{
230 static const struct snd_usb_audio_quirk yamaha_midi_quirk = {
231 .type = QUIRK_MIDI_YAMAHA
232 };
233 struct usb_midi_in_jack_descriptor *injd;
234 struct usb_midi_out_jack_descriptor *outjd;
235
236 /* must have some valid jack descriptors */
237 injd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
238 NULL, USB_MS_MIDI_IN_JACK);
239 outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen,
240 NULL, USB_MS_MIDI_OUT_JACK);
241 if (!injd && !outjd)
242 return -ENODEV;
243 if (injd && (injd->bLength < 5 ||
244 (injd->bJackType != USB_MS_EMBEDDED &&
245 injd->bJackType != USB_MS_EXTERNAL)))
246 return -ENODEV;
247 if (outjd && (outjd->bLength < 6 ||
248 (outjd->bJackType != USB_MS_EMBEDDED &&
249 outjd->bJackType != USB_MS_EXTERNAL)))
250 return -ENODEV;
251 return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk);
252}
253
254static int create_roland_midi_quirk(struct snd_usb_audio *chip,
255 struct usb_interface *iface,
256 struct usb_driver *driver,
257 struct usb_host_interface *alts)
258{
259 static const struct snd_usb_audio_quirk roland_midi_quirk = {
260 .type = QUIRK_MIDI_ROLAND
261 };
262 u8 *roland_desc = NULL;
263
264 /* might have a vendor-specific descriptor <06 24 F1 02 ...> */
265 for (;;) {
266 roland_desc = snd_usb_find_csint_desc(alts->extra,
267 alts->extralen,
268 roland_desc, 0xf1);
269 if (!roland_desc)
270 return -ENODEV;
271 if (roland_desc[0] < 6 || roland_desc[3] != 2)
272 continue;
273 return create_any_midi_quirk(chip, iface, driver,
274 &roland_midi_quirk);
275 }
276}
277
278static int create_std_midi_quirk(struct snd_usb_audio *chip,
279 struct usb_interface *iface,
280 struct usb_driver *driver,
281 struct usb_host_interface *alts)
282{
283 struct usb_ms_header_descriptor *mshd;
284 struct usb_ms_endpoint_descriptor *msepd;
285
286 /* must have the MIDIStreaming interface header descriptor*/
287 mshd = (struct usb_ms_header_descriptor *)alts->extra;
288 if (alts->extralen < 7 ||
289 mshd->bLength < 7 ||
290 mshd->bDescriptorType != USB_DT_CS_INTERFACE ||
291 mshd->bDescriptorSubtype != USB_MS_HEADER)
292 return -ENODEV;
293 /* must have the MIDIStreaming endpoint descriptor*/
294 msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra;
295 if (alts->endpoint[0].extralen < 4 ||
296 msepd->bLength < 4 ||
297 msepd->bDescriptorType != USB_DT_CS_ENDPOINT ||
298 msepd->bDescriptorSubtype != UAC_MS_GENERAL ||
299 msepd->bNumEmbMIDIJack < 1 ||
300 msepd->bNumEmbMIDIJack > 16)
301 return -ENODEV;
302
303 return create_any_midi_quirk(chip, iface, driver, NULL);
304}
305
306static int create_auto_midi_quirk(struct snd_usb_audio *chip,
307 struct usb_interface *iface,
308 struct usb_driver *driver)
309{
310 struct usb_host_interface *alts;
311 struct usb_interface_descriptor *altsd;
312 struct usb_endpoint_descriptor *epd;
313 int err;
314
315 alts = &iface->altsetting[0];
316 altsd = get_iface_desc(alts);
317
318 /* must have at least one bulk/interrupt endpoint for streaming */
319 if (altsd->bNumEndpoints < 1)
320 return -ENODEV;
321 epd = get_endpoint(alts, 0);
aa773bfe 322 if (!usb_endpoint_xfer_bulk(epd) &&
aafe77cc
CL		 323 !usb_endpoint_xfer_int(epd))
324 return -ENODEV;
325
326 switch (USB_ID_VENDOR(chip->usb_id)) {
327 case 0x0499: /* Yamaha */
328 err = create_yamaha_midi_quirk(chip, iface, driver, alts);
aa773bfe 329 if (err != -ENODEV)
aafe77cc
CL		 330 return err;
331 break;
332 case 0x0582: /* Roland */
333 err = create_roland_midi_quirk(chip, iface, driver, alts);
aa773bfe 334 if (err != -ENODEV)
aafe77cc
CL		 335 return err;
336 break;
337 }
338
339 return create_std_midi_quirk(chip, iface, driver, alts);
340}
341
342static int create_autodetect_quirk(struct snd_usb_audio *chip,
343 struct usb_interface *iface,
b1ce7ba6 344 struct usb_driver *driver)
aafe77cc
CL		 345{
346 int err;
347
348 err = create_auto_pcm_quirk(chip, iface, driver);
349 if (err == -ENODEV)
350 err = create_auto_midi_quirk(chip, iface, driver);
351 return err;
352}
353
b1ce7ba6
CL		 354static int create_autodetect_quirks(struct snd_usb_audio *chip,
355 struct usb_interface *iface,
356 struct usb_driver *driver,
357 const struct snd_usb_audio_quirk *quirk)
358{
359 int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
360 int ifcount, ifnum, err;
361
362 err = create_autodetect_quirk(chip, iface, driver);
363 if (err < 0)
364 return err;
365
366 /*
367 * ALSA PCM playback/capture devices cannot be registered in two steps,
368 * so we have to claim the other corresponding interface here.
369 */
370 ifcount = chip->dev->actconfig->desc.bNumInterfaces;
371 for (ifnum = 0; ifnum < ifcount; ifnum++) {
372 if (ifnum == probed_ifnum || quirk->ifnum >= 0)
373 continue;
374 iface = usb_ifnum_to_if(chip->dev, ifnum);
375 if (!iface ||
376 usb_interface_claimed(iface) ||
377 get_iface_desc(iface->altsetting)->bInterfaceClass !=
378 USB_CLASS_VENDOR_SPEC)
379 continue;
380
381 err = create_autodetect_quirk(chip, iface, driver);
382 if (err >= 0)
383 usb_driver_claim_interface(driver, iface, (void *)-1L);
384 }
385
386 return 0;
387}
388
e5779998
DM		 389/*
390 * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
391 * The only way to detect the sample rate is by looking at wMaxPacketSize.
392 */
393static int create_uaxx_quirk(struct snd_usb_audio *chip,
394 struct usb_interface *iface,
395 struct usb_driver *driver,
396 const struct snd_usb_audio_quirk *quirk)
397{
398 static const struct audioformat ua_format = {
015eb0b0 399 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
e5779998
DM		 400 .channels = 2,
401 .fmt_type = UAC_FORMAT_TYPE_I,
402 .altsetting = 1,
403 .altset_idx = 1,
404 .rates = SNDRV_PCM_RATE_CONTINUOUS,
405 };
406 struct usb_host_interface *alts;
407 struct usb_interface_descriptor *altsd;
408 struct audioformat *fp;
409 int stream, err;
410
411 /* both PCM and MIDI interfaces have 2 or more altsettings */
412 if (iface->num_altsetting < 2)
413 return -ENXIO;
414 alts = &iface->altsetting[1];
415 altsd = get_iface_desc(alts);
416
417 if (altsd->bNumEndpoints == 2) {
418 static const struct snd_usb_midi_endpoint_info ua700_ep = {
419 .out_cables = 0x0003,
420 .in_cables = 0x0003
421 };
422 static const struct snd_usb_audio_quirk ua700_quirk = {
423 .type = QUIRK_MIDI_FIXED_ENDPOINT,
424 .data = &ua700_ep
425 };
426 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
427 .out_cables = 0x0001,
428 .in_cables = 0x0001
429 };
430 static const struct snd_usb_audio_quirk uaxx_quirk = {
431 .type = QUIRK_MIDI_FIXED_ENDPOINT,
432 .data = &uaxx_ep
433 };
434 const struct snd_usb_audio_quirk *quirk =
435 chip->usb_id == USB_ID(0x0582, 0x002b)
436 ? &ua700_quirk : &uaxx_quirk;
437 return snd_usbmidi_create(chip->card, iface,
438 &chip->midi_list, quirk);
439 }
440
441 if (altsd->bNumEndpoints != 1)
442 return -ENXIO;
443
43df2a57 444 fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
e5779998
DM		 445 if (!fp)
446 return -ENOMEM;
e5779998
DM		 447
448 fp->iface = altsd->bInterfaceNumber;
449 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
450 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
451 fp->datainterval = 0;
452 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
453
454 switch (fp->maxpacksize) {
455 case 0x120:
456 fp->rate_max = fp->rate_min = 44100;
457 break;
458 case 0x138:
459 case 0x140:
460 fp->rate_max = fp->rate_min = 48000;
461 break;
462 case 0x258:
463 case 0x260:
464 fp->rate_max = fp->rate_min = 96000;
465 break;
466 default:
0ba41d91 467 usb_audio_err(chip, "unknown sample rate\n");
e5779998
DM		 468 kfree(fp);
469 return -ENXIO;
470 }
471
472 stream = (fp->endpoint & USB_DIR_IN)
473 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
e8e8babf 474 err = snd_usb_add_audio_stream(chip, stream, fp);
e5779998
DM		 475 if (err < 0) {
476 kfree(fp);
477 return err;
478 }
479 usb_set_interface(chip->dev, fp->iface, 0);
480 return 0;
481}
482
014950b0
DM		 483/*
484 * Create a standard mixer for the specified interface.
485 */
486static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
487 struct usb_interface *iface,
488 struct usb_driver *driver,
489 const struct snd_usb_audio_quirk *quirk)
490{
491 if (quirk->ifnum < 0)
492 return 0;
493
494 return snd_usb_create_mixer(chip, quirk->ifnum, 0);
495}
496
e5779998
DM		 497/*
498 * audio-interface quirks
499 *
500 * returns zero if no standard audio/MIDI parsing is needed.
25985edc 501 * returns a positive value if standard audio/midi interfaces are parsed
e5779998
DM		 502 * after this.
503 * returns a negative value at error.
504 */
505int snd_usb_create_quirk(struct snd_usb_audio *chip,
506 struct usb_interface *iface,
507 struct usb_driver *driver,
508 const struct snd_usb_audio_quirk *quirk)
509{
510 typedef int (*quirk_func_t)(struct snd_usb_audio *,
511 struct usb_interface *,
512 struct usb_driver *,
513 const struct snd_usb_audio_quirk *);
514 static const quirk_func_t quirk_funcs[] = {
515 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
516 [QUIRK_COMPOSITE] = create_composite_quirk,
b1ce7ba6 517 [QUIRK_AUTODETECT] = create_autodetect_quirks,
e5779998
DM		 518 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
519 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
520 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
aafe77cc 521 [QUIRK_MIDI_ROLAND] = create_any_midi_quirk,
e5779998
DM		 522 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
523 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
c7f57216 524 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
e5779998
DM		 525 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
526 [QUIRK_MIDI_CME] = create_any_midi_quirk,
4434ade8 527 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
1ef0e0a0 528 [QUIRK_MIDI_FTDI] = create_any_midi_quirk,
e5779998
DM		 529 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
530 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
531 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
014950b0
DM		 532 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
533 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
e5779998
DM		 534 };
535
536 if (quirk->type < QUIRK_TYPE_COUNT) {
537 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
538 } else {
0ba41d91 539 usb_audio_err(chip, "invalid quirk type %d\n", quirk->type);
e5779998
DM		 540 return -ENXIO;
541 }
542}
543
544/*
545 * boot quirks
546 */
547
548#define EXTIGY_FIRMWARE_SIZE_OLD 794
549#define EXTIGY_FIRMWARE_SIZE_NEW 483
550
551static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
552{
553 struct usb_host_config *config = dev->actconfig;
554 int err;
555
556 if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
557 le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
0ba41d91 558 dev_dbg(&dev->dev, "sending Extigy boot sequence...\n");
e5779998
DM		 559 /* Send message to force it to reconnect with full interface. */
560 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
17d900c4 561 0x10, 0x43, 0x0001, 0x000a, NULL, 0);
0ba41d91
TI		 562 if (err < 0)
563 dev_dbg(&dev->dev, "error sending boot message: %d\n", err);
e5779998
DM		 564 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
565 &dev->descriptor, sizeof(dev->descriptor));
566 config = dev->actconfig;
0ba41d91
TI		 567 if (err < 0)
568 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
e5779998 569 err = usb_reset_configuration(dev);
0ba41d91
TI		 570 if (err < 0)
571 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
572 dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n",
e5779998
DM		 573 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
574 return -ENODEV; /* quit this anyway */
575 }
576 return 0;
577}
578
579static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
580{
581 u8 buf = 1;
582
583 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
584 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
17d900c4 585 0, 0, &buf, 1);
e5779998
DM		 586 if (buf == 0) {
587 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
588 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
17d900c4 589 1, 2000, NULL, 0);
e5779998
DM		 590 return -ENODEV;
591 }
592 return 0;
593}
594
0f5733b0
GP		 595static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
596{
597 int err;
598
599 if (dev->actconfig->desc.bConfigurationValue == 1) {
0ba41d91 600 dev_info(&dev->dev,
0f5733b0
GP		 601 "Fast Track Pro switching to config #2\n");
602 /* This function has to be available by the usb core module.
603 * if it is not avialable the boot quirk has to be left out
604 * and the configuration has to be set by udev or hotplug
605 * rules
606 */
607 err = usb_driver_set_configuration(dev, 2);
b98ae272 608 if (err < 0)
0ba41d91
TI		 609 dev_dbg(&dev->dev,
610 "error usb_driver_set_configuration: %d\n",
611 err);
b98ae272
DH		 612 /* Always return an error, so that we stop creating a device
613 that will just be destroyed and recreated with a new
614 configuration */
615 return -ENODEV;
0f5733b0 616 } else
0ba41d91 617 dev_info(&dev->dev, "Fast Track Pro config OK\n");
0f5733b0
GP		 618
619 return 0;
620}
621
e5779998
DM		 622/*
623 * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
624 * documented in the device's data sheet.
625 */
626static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
627{
628 u8 buf[4];
629 buf[0] = 0x20;
630 buf[1] = value & 0xff;
631 buf[2] = (value >> 8) & 0xff;
632 buf[3] = reg;
633 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
634 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
17d900c4 635 0, 0, &buf, 4);
e5779998
DM		 636}
637
638static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
639{
640 /*
641 * Enable line-out driver mode, set headphone source to front
642 * channels, enable stereo mic.
643 */
644 return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
645}
646
647/*
648 * C-Media CM6206 is based on CM106 with two additional
649 * registers that are not documented in the data sheet.
650 * Values here are chosen based on sniffing USB traffic
651 * under Windows.
652 */
653static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
654{
dac8f847 655 int err = 0, reg;
157186bc 656 int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
e5779998
DM		 657
658 for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
659 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
660 if (err < 0)
661 return err;
662 }
663
664 return err;
665}
666
19570d74
TI		 667/* quirk for Plantronics GameCom 780 with CM6302 chip */
668static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
669{
670 /* set the initial volume and don't change; other values are either
671 * too loud or silent due to firmware bug (bko#65251)
672 */
542baf94 673 u8 buf[2] = { 0x74, 0xe3 };
19570d74
TI		 674 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
675 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
676 UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
677}
678
5e212332
MH		 679/*
680 * Novation Twitch DJ controller
11e424e8 681 * Focusrite Novation Saffire 6 USB audio card
5e212332 682 */
11e424e8 683static int snd_usb_novation_boot_quirk(struct usb_device *dev)
5e212332
MH		 684{
685 /* preemptively set up the device because otherwise the
686 * raw MIDI endpoints are not active */
687 usb_set_interface(dev, 0, 1);
688 return 0;
689}
690
e5779998
DM		 691/*
692 * This call will put the synth in "USB send" mode, i.e it will send MIDI
693 * messages through USB (this is disabled at startup). The synth will
694 * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
695 * sign on its LCD. Values here are chosen based on sniffing USB traffic
696 * under Windows.
697 */
698static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
699{
700 int err, actual_length;
701
702 /* "midi send" enable */
703 static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
704
705 void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
706 if (!buf)
707 return -ENOMEM;
708 err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
709 ARRAY_SIZE(seq), &actual_length, 1000);
710 kfree(buf);
711 if (err < 0)
712 return err;
713
714 return 0;
715}
716
54a8c500
DM		 717/*
718 * Some sound cards from Native Instruments are in fact compliant to the USB
719 * audio standard of version 2 and other approved USB standards, even though
720 * they come up as vendor-specific device when first connected.
721 *
722 * However, they can be told to come up with a new set of descriptors
723 * upon their next enumeration, and the interfaces announced by the new
724 * descriptors will then be handled by the kernel's class drivers. As the
725 * product ID will also change, no further checks are required.
726 */
727
728static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
729{
730 int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
731 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
889d6684 732 1, 0, NULL, 0, 1000);
54a8c500
DM		 733
734 if (ret < 0)
735 return ret;
736
737 usb_reset_device(dev);
738
739 /* return -EAGAIN, so the creation of an audio interface for this
740 * temporary device is aborted. The device will reconnect with a
741 * new product ID */
742 return -EAGAIN;
743}
744
cb99864d
DZ		 745static void mbox2_setup_48_24_magic(struct usb_device *dev)
746{
747 u8 srate[3];
748 u8 temp[12];
749
750 /* Choose 48000Hz permanently */
751 srate[0] = 0x80;
752 srate[1] = 0xbb;
753 srate[2] = 0x00;
754
755 /* Send the magic! */
756 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
757 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
758 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
759 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
760 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
761 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
762 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
763 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
764 return;
765}
766
767/* Digidesign Mbox 2 needs to load firmware onboard
768 * and driver must wait a few seconds for initialisation.
769 */
770
771#define MBOX2_FIRMWARE_SIZE 646
772#define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */
773#define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */
774
b7b435e8 775static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
cb99864d
DZ		 776{
777 struct usb_host_config *config = dev->actconfig;
778 int err;
4909a0ca 779 u8 bootresponse[0x12];
cb99864d
DZ		 780 int fwsize;
781 int count;
782
783 fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
784
785 if (fwsize != MBOX2_FIRMWARE_SIZE) {
0ba41d91 786 dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize);
cb99864d
DZ		 787 return -ENODEV;
788 }
789
0ba41d91 790 dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n");
cb99864d
DZ		 791
792 count = 0;
b7b435e8
DZ		 793 bootresponse[0] = MBOX2_BOOT_LOADING;
794 while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
cb99864d
DZ		 795 msleep(500); /* 0.5 second delay */
796 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
797 /* Control magic - load onboard firmware */
798 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
b7b435e8 799 if (bootresponse[0] == MBOX2_BOOT_READY)
cb99864d 800 break;
0ba41d91 801 dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n");
cb99864d
DZ		 802 count++;
803 }
804
b7b435e8 805 if (bootresponse[0] != MBOX2_BOOT_READY) {
0ba41d91 806 dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
cb99864d
DZ		 807 return -ENODEV;
808 }
809
0ba41d91 810 dev_dbg(&dev->dev, "device initialised!\n");
cb99864d
DZ		 811
812 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
813 &dev->descriptor, sizeof(dev->descriptor));
814 config = dev->actconfig;
815 if (err < 0)
0ba41d91 816 dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err);
cb99864d
DZ		 817
818 err = usb_reset_configuration(dev);
819 if (err < 0)
0ba41d91
TI		 820 dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err);
821 dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n",
cb99864d
DZ		 822 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
823
824 mbox2_setup_48_24_magic(dev);
825
0ba41d91 826 dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz");
cb99864d
DZ		 827
828 return 0; /* Successful boot */
829}
830
e5779998
DM		 831/*
832 * Setup quirks
833 */
0f5733b0
GP		 834#define MAUDIO_SET 0x01 /* parse device_setup */
835#define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */
836#define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */
837#define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
838#define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */
839#define MAUDIO_SET_DI 0x10 /* enable Digital Input */
840#define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */
841#define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */
842#define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
843#define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */
844#define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
845
846static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
847 int iface, int altno)
848{
849 /* Reset ALL ifaces to 0 altsetting.
850 * Call it for every possible altsetting of every interface.
851 */
852 usb_set_interface(chip->dev, iface, 0);
853 if (chip->setup & MAUDIO_SET) {
854 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
855 if (iface != 1 && iface != 2)
856 return 1; /* skip all interfaces but 1 and 2 */
857 } else {
858 unsigned int mask;
859 if (iface == 1 || iface == 2)
860 return 1; /* skip interfaces 1 and 2 */
861 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
862 return 1; /* skip this altsetting */
863 mask = chip->setup & MAUDIO_SET_MASK;
864 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
865 return 1; /* skip this altsetting */
866 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
867 return 1; /* skip this altsetting */
868 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
869 return 1; /* skip this altsetting */
870 }
871 }
0ba41d91 872 usb_audio_dbg(chip,
0f5733b0
GP		 873 "using altsetting %d for interface %d config %d\n",
874 altno, iface, chip->setup);
875 return 0; /* keep this altsetting */
876}
e5779998
DM		 877
878static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
879 int iface,
880 int altno)
881{
882 /* Reset ALL ifaces to 0 altsetting.
883 * Call it for every possible altsetting of every interface.
884 */
885 usb_set_interface(chip->dev, iface, 0);
886
0f5733b0
GP		 887 if (chip->setup & MAUDIO_SET) {
888 unsigned int mask;
889 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
e5779998 890 return 1; /* skip this altsetting */
0f5733b0 891 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
e5779998 892 return 1; /* skip this altsetting */
0f5733b0
GP		 893 mask = chip->setup & MAUDIO_SET_MASK;
894 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
e5779998 895 return 1; /* skip this altsetting */
0f5733b0 896 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
e5779998 897 return 1; /* skip this altsetting */
0f5733b0 898 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
e5779998 899 return 1; /* skip this altsetting */
0f5733b0 900 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
e5779998
DM		 901 return 1; /* skip this altsetting */
902 }
903
904 return 0; /* keep this altsetting */
905}
906
0f5733b0
GP		 907static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
908 int iface, int altno)
909{
910 /* Reset ALL ifaces to 0 altsetting.
911 * Call it for every possible altsetting of every interface.
912 */
913 usb_set_interface(chip->dev, iface, 0);
914
915 /* possible configuration where both inputs and only one output is
916 *used is not supported by the current setup
917 */
918 if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
919 if (chip->setup & MAUDIO_SET_96K) {
920 if (altno != 3 && altno != 6)
921 return 1;
922 } else if (chip->setup & MAUDIO_SET_DI) {
923 if (iface == 4)
924 return 1; /* no analog input */
925 if (altno != 2 && altno != 5)
926 return 1; /* enable only altsets 2 and 5 */
927 } else {
928 if (iface == 5)
929 return 1; /* disable digialt input */
930 if (altno != 2 && altno != 5)
931 return 1; /* enalbe only altsets 2 and 5 */
932 }
933 } else {
934 /* keep only 16-Bit mode */
935 if (altno != 1)
936 return 1;
937 }
938
0ba41d91 939 usb_audio_dbg(chip,
0f5733b0
GP		 940 "using altsetting %d for interface %d config %d\n",
941 altno, iface, chip->setup);
942 return 0; /* keep this altsetting */
943}
944
e5779998
DM		 945int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
946 int iface,
947 int altno)
948{
949 /* audiophile usb: skip altsets incompatible with device_setup */
950 if (chip->usb_id == USB_ID(0x0763, 0x2003))
951 return audiophile_skip_setting_quirk(chip, iface, altno);
0f5733b0
GP		 952 /* quattro usb: skip altsets incompatible with device_setup */
953 if (chip->usb_id == USB_ID(0x0763, 0x2001))
954 return quattro_skip_setting_quirk(chip, iface, altno);
955 /* fasttrackpro usb: skip altsets incompatible with device_setup */
956 if (chip->usb_id == USB_ID(0x0763, 0x2012))
957 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
e5779998
DM		 958
959 return 0;
960}
961
962int snd_usb_apply_boot_quirk(struct usb_device *dev,
963 struct usb_interface *intf,
964 const struct snd_usb_audio_quirk *quirk)
965{
966 u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
967 le16_to_cpu(dev->descriptor.idProduct));
968
3347b26c
DM		 969 switch (id) {
970 case USB_ID(0x041e, 0x3000):
971 /* SB Extigy needs special boot-up sequence */
972 /* if more models come, this will go to the quirk list. */
e5779998
DM		 973 return snd_usb_extigy_boot_quirk(dev, intf);
974
3347b26c
DM		 975 case USB_ID(0x041e, 0x3020):
976 /* SB Audigy 2 NX needs its own boot-up magic, too */
e5779998
DM		 977 return snd_usb_audigy2nx_boot_quirk(dev);
978
3347b26c
DM		 979 case USB_ID(0x10f5, 0x0200):
980 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
e5779998
DM		 981 return snd_usb_cm106_boot_quirk(dev);
982
3347b26c
DM		 983 case USB_ID(0x0d8c, 0x0102):
984 /* C-Media CM6206 / CM106-Like Sound Device */
8129e79e 985 case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
e5779998
DM		 986 return snd_usb_cm6206_boot_quirk(dev);
987
cb99864d
DZ		 988 case USB_ID(0x0dba, 0x3000):
989 /* Digidesign Mbox 2 */
990 return snd_usb_mbox2_boot_quirk(dev);
991
11e424e8
EG		 992 case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
993 case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
994 return snd_usb_novation_boot_quirk(dev);
5e212332 995
3347b26c
DM		 996 case USB_ID(0x133e, 0x0815):
997 /* Access Music VirusTI Desktop */
e5779998
DM		 998 return snd_usb_accessmusic_boot_quirk(dev);
999
759e890f 1000 case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
3347b26c
DM		 1001 case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
1002 case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
54a8c500 1003 return snd_usb_nativeinstruments_boot_quirk(dev);
0f5733b0
GP		 1004 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
1005 return snd_usb_fasttrackpro_boot_quirk(dev);
19570d74
TI		 1006 case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
1007 return snd_usb_gamecon780_boot_quirk(dev);
3347b26c 1008 }
54a8c500 1009
e5779998
DM		 1010 return 0;
1011}
1012
1013/*
1014 * check if the device uses big-endian samples
1015 */
1016int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
1017{
48fc7f7e 1018 /* it depends on altsetting whether the device is big-endian or not */
e5779998
DM		 1019 switch (chip->usb_id) {
1020 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
0f5733b0
GP		 1021 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1022 fp->altsetting == 5 || fp->altsetting == 6)
e5779998
DM		 1023 return 1;
1024 break;
1025 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1026 if (chip->setup == 0x00 ||
0f5733b0
GP		 1027 fp->altsetting == 1 || fp->altsetting == 2 ||
1028 fp->altsetting == 3)
1029 return 1;
1030 break;
1031 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1032 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1033 fp->altsetting == 5 || fp->altsetting == 6)
e5779998 1034 return 1;
0f5733b0 1035 break;
e5779998
DM		 1036 }
1037 return 0;
1038}
1039
1040/*
1cdfa9f3 1041 * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
e5779998
DM		 1042 * not for interface.
1043 */
1044
1045enum {
1046 EMU_QUIRK_SR_44100HZ = 0,
1047 EMU_QUIRK_SR_48000HZ,
1048 EMU_QUIRK_SR_88200HZ,
1049 EMU_QUIRK_SR_96000HZ,
1050 EMU_QUIRK_SR_176400HZ,
1051 EMU_QUIRK_SR_192000HZ
1052};
1053
1054static void set_format_emu_quirk(struct snd_usb_substream *subs,
1055 struct audioformat *fmt)
1056{
1057 unsigned char emu_samplerate_id = 0;
1058
1059 /* When capture is active
1060 * sample rate shouldn't be changed
1061 * by playback substream
1062 */
1063 if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1064 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
1065 return;
1066 }
1067
1068 switch (fmt->rate_min) {
1069 case 48000:
1070 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1071 break;
1072 case 88200:
1073 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1074 break;
1075 case 96000:
1076 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1077 break;
1078 case 176400:
1079 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1080 break;
1081 case 192000:
1082 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1083 break;
1084 default:
1085 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1086 break;
1087 }
1088 snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1539d4f8 1089 subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
e5779998
DM		 1090}
1091
1092void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1093 struct audioformat *fmt)
1094{
1095 switch (subs->stream->chip->usb_id) {
1096 case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1097 case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1098 case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1cdfa9f3 1099 case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
e5779998
DM		 1100 set_format_emu_quirk(subs, fmt);
1101 break;
1102 }
1103}
1104
2b58fd5b
DM		 1105void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1106{
1107 /*
1108 * "Playback Design" products send bogus feedback data at the start
1109 * of the stream. Ignore them.
1110 */
1111 if ((le16_to_cpu(ep->chip->dev->descriptor.idVendor) == 0x23ba) &&
1112 ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1113 ep->skip_packets = 4;
83e3acd4
EZ		 1114
1115 /*
e9a25e04
MG		 1116 * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1117 * world latency varies by approx. +/- 50 frames (at 96KHz) each time
1118 * the stream is (re)started. When skipping packets 16 at endpoint
1119 * start up, the real world latency is stable within +/- 1 frame (also
83e3acd4
EZ		 1120 * across power cycles).
1121 */
e9a25e04
MG		 1122 if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1123 ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
83e3acd4
EZ		 1124 ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1125 ep->skip_packets = 16;
2b58fd5b
DM		 1126}
1127
21bb5aaf
DM		 1128void snd_usb_set_interface_quirk(struct usb_device *dev)
1129{
1130 /*
1131 * "Playback Design" products need a 50ms delay after setting the
1132 * USB interface.
1133 */
1134 if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
1135 mdelay(50);
1136}
1137
2b58fd5b
DM		 1138void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1139 __u8 request, __u8 requesttype, __u16 value,
1140 __u16 index, void *data, __u16 size)
1141{
1142 /*
1143 * "Playback Design" products need a 20ms delay after each
1144 * class compliant request
1145 */
1146 if ((le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) &&
1147 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1148 mdelay(20);
1149}
1150
126825e7
DM		 1151/*
1152 * snd_usb_interface_dsd_format_quirks() is called from format.c to
1153 * augment the PCM format bit-field for DSD types. The UAC standards
1154 * don't have a designated bit field to denote DSD-capable interfaces,
1155 * hence all hardware that is known to support this format has to be
1156 * listed here.
1157 */
1158u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1159 struct audioformat *fp,
1160 unsigned int sample_bytes)
1161{
1162 /* Playback Designs */
1163 if (le16_to_cpu(chip->dev->descriptor.idVendor) == 0x23ba) {
1164 switch (fp->altsetting) {
1165 case 1:
1166 fp->dsd_dop = true;
1167 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1168 case 2:
1169 fp->dsd_bitrev = true;
1170 return SNDRV_PCM_FMTBIT_DSD_U8;
1171 case 3:
1172 fp->dsd_bitrev = true;
1173 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1174 }
1175 }
1176
848f3a82
JK		 1177 /* XMOS based USB DACs */
1178 switch (chip->usb_id) {
1179 /* iFi Audio micro/nano iDSD */
1180 case USB_ID(0x20b1, 0x3008):
1181 if (fp->altsetting == 2)
1182 return SNDRV_PCM_FMTBIT_DSD_U32_LE;
1183 break;
1184 /* DIYINHK DSD DXD 384kHz USB to I2S/DSD */
1185 case USB_ID(0x20b1, 0x2009):
1186 if (fp->altsetting == 3)
1187 return SNDRV_PCM_FMTBIT_DSD_U32_LE;
1188 break;
1189 default:
1190 break;
1191 }
1192
126825e7
DM		 1193 return 0;
1194}
Linux 6.x block layer and io_uring tree(s)