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ALSA: usb-audio: Use SNDRV_DEV_CODEC for mixer objects
[deliverable/linux.git] / sound / usb / quirks.c
CommitLineData
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;
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) {
e5779998
DM		 138 snd_printk(KERN_ERR "cannot memdup\n");
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:
467 snd_printk(KERN_ERR "unknown sample rate\n");
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 {
539 snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
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) {
558 snd_printdd("sending Extigy boot sequence...\n");
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);
e5779998
DM		 562 if (err < 0) snd_printdd("error sending boot message: %d\n", err);
563 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
564 &dev->descriptor, sizeof(dev->descriptor));
565 config = dev->actconfig;
566 if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
567 err = usb_reset_configuration(dev);
568 if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
569 snd_printdd("extigy_boot: new boot length = %d\n",
570 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
571 return -ENODEV; /* quit this anyway */
572 }
573 return 0;
574}
575
576static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
577{
578 u8 buf = 1;
579
580 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
581 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
17d900c4 582 0, 0, &buf, 1);
e5779998
DM		 583 if (buf == 0) {
584 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
585 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
17d900c4 586 1, 2000, NULL, 0);
e5779998
DM		 587 return -ENODEV;
588 }
589 return 0;
590}
591
0f5733b0
GP		 592static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
593{
594 int err;
595
596 if (dev->actconfig->desc.bConfigurationValue == 1) {
597 snd_printk(KERN_INFO "usb-audio: "
598 "Fast Track Pro switching to config #2\n");
599 /* This function has to be available by the usb core module.
600 * if it is not avialable the boot quirk has to be left out
601 * and the configuration has to be set by udev or hotplug
602 * rules
603 */
604 err = usb_driver_set_configuration(dev, 2);
b98ae272 605 if (err < 0)
0f5733b0
GP		 606 snd_printdd("error usb_driver_set_configuration: %d\n",
607 err);
b98ae272
DH		 608 /* Always return an error, so that we stop creating a device
609 that will just be destroyed and recreated with a new
610 configuration */
611 return -ENODEV;
0f5733b0
GP		 612 } else
613 snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n");
614
615 return 0;
616}
617
e5779998
DM		 618/*
619 * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
620 * documented in the device's data sheet.
621 */
622static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
623{
624 u8 buf[4];
625 buf[0] = 0x20;
626 buf[1] = value & 0xff;
627 buf[2] = (value >> 8) & 0xff;
628 buf[3] = reg;
629 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
630 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
17d900c4 631 0, 0, &buf, 4);
e5779998
DM		 632}
633
634static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
635{
636 /*
637 * Enable line-out driver mode, set headphone source to front
638 * channels, enable stereo mic.
639 */
640 return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
641}
642
643/*
644 * C-Media CM6206 is based on CM106 with two additional
645 * registers that are not documented in the data sheet.
646 * Values here are chosen based on sniffing USB traffic
647 * under Windows.
648 */
649static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
650{
dac8f847 651 int err = 0, reg;
157186bc 652 int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
e5779998
DM		 653
654 for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
655 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
656 if (err < 0)
657 return err;
658 }
659
660 return err;
661}
662
19570d74
TI		 663/* quirk for Plantronics GameCom 780 with CM6302 chip */
664static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev)
665{
666 /* set the initial volume and don't change; other values are either
667 * too loud or silent due to firmware bug (bko#65251)
668 */
669 u8 buf[2] = { 0x74, 0xdc };
670 return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
671 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
672 UAC_FU_VOLUME << 8, 9 << 8, buf, 2);
673}
674
5e212332
MH		 675/*
676 * Novation Twitch DJ controller
11e424e8 677 * Focusrite Novation Saffire 6 USB audio card
5e212332 678 */
11e424e8 679static int snd_usb_novation_boot_quirk(struct usb_device *dev)
5e212332
MH		 680{
681 /* preemptively set up the device because otherwise the
682 * raw MIDI endpoints are not active */
683 usb_set_interface(dev, 0, 1);
684 return 0;
685}
686
e5779998
DM		 687/*
688 * This call will put the synth in "USB send" mode, i.e it will send MIDI
689 * messages through USB (this is disabled at startup). The synth will
690 * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
691 * sign on its LCD. Values here are chosen based on sniffing USB traffic
692 * under Windows.
693 */
694static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
695{
696 int err, actual_length;
697
698 /* "midi send" enable */
699 static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
700
701 void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
702 if (!buf)
703 return -ENOMEM;
704 err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
705 ARRAY_SIZE(seq), &actual_length, 1000);
706 kfree(buf);
707 if (err < 0)
708 return err;
709
710 return 0;
711}
712
54a8c500
DM		 713/*
714 * Some sound cards from Native Instruments are in fact compliant to the USB
715 * audio standard of version 2 and other approved USB standards, even though
716 * they come up as vendor-specific device when first connected.
717 *
718 * However, they can be told to come up with a new set of descriptors
719 * upon their next enumeration, and the interfaces announced by the new
720 * descriptors will then be handled by the kernel's class drivers. As the
721 * product ID will also change, no further checks are required.
722 */
723
724static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
725{
726 int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
727 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
889d6684 728 1, 0, NULL, 0, 1000);
54a8c500
DM		 729
730 if (ret < 0)
731 return ret;
732
733 usb_reset_device(dev);
734
735 /* return -EAGAIN, so the creation of an audio interface for this
736 * temporary device is aborted. The device will reconnect with a
737 * new product ID */
738 return -EAGAIN;
739}
740
cb99864d
DZ		 741static void mbox2_setup_48_24_magic(struct usb_device *dev)
742{
743 u8 srate[3];
744 u8 temp[12];
745
746 /* Choose 48000Hz permanently */
747 srate[0] = 0x80;
748 srate[1] = 0xbb;
749 srate[2] = 0x00;
750
751 /* Send the magic! */
752 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
753 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
754 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
755 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
756 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
757 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
758 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
759 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
760 return;
761}
762
763/* Digidesign Mbox 2 needs to load firmware onboard
764 * and driver must wait a few seconds for initialisation.
765 */
766
767#define MBOX2_FIRMWARE_SIZE 646
768#define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */
769#define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */
770
b7b435e8 771static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
cb99864d
DZ		 772{
773 struct usb_host_config *config = dev->actconfig;
774 int err;
4909a0ca 775 u8 bootresponse[0x12];
cb99864d
DZ		 776 int fwsize;
777 int count;
778
779 fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
780
781 if (fwsize != MBOX2_FIRMWARE_SIZE) {
782 snd_printk(KERN_ERR "usb-audio: Invalid firmware size=%d.\n", fwsize);
783 return -ENODEV;
784 }
785
786 snd_printd("usb-audio: Sending Digidesign Mbox 2 boot sequence...\n");
787
788 count = 0;
b7b435e8
DZ		 789 bootresponse[0] = MBOX2_BOOT_LOADING;
790 while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
cb99864d
DZ		 791 msleep(500); /* 0.5 second delay */
792 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
793 /* Control magic - load onboard firmware */
794 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
b7b435e8 795 if (bootresponse[0] == MBOX2_BOOT_READY)
cb99864d
DZ		 796 break;
797 snd_printd("usb-audio: device not ready, resending boot sequence...\n");
798 count++;
799 }
800
b7b435e8
DZ		 801 if (bootresponse[0] != MBOX2_BOOT_READY) {
802 snd_printk(KERN_ERR "usb-audio: Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
cb99864d
DZ		 803 return -ENODEV;
804 }
805
806 snd_printdd("usb-audio: device initialised!\n");
807
808 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
809 &dev->descriptor, sizeof(dev->descriptor));
810 config = dev->actconfig;
811 if (err < 0)
812 snd_printd("error usb_get_descriptor: %d\n", err);
813
814 err = usb_reset_configuration(dev);
815 if (err < 0)
816 snd_printd("error usb_reset_configuration: %d\n", err);
817 snd_printdd("mbox2_boot: new boot length = %d\n",
818 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
819
820 mbox2_setup_48_24_magic(dev);
821
822 snd_printk(KERN_INFO "usb-audio: Digidesign Mbox 2: 24bit 48kHz");
823
824 return 0; /* Successful boot */
825}
826
e5779998
DM		 827/*
828 * Setup quirks
829 */
0f5733b0
GP		 830#define MAUDIO_SET 0x01 /* parse device_setup */
831#define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */
832#define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */
833#define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
834#define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */
835#define MAUDIO_SET_DI 0x10 /* enable Digital Input */
836#define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */
837#define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */
838#define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
839#define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */
840#define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
841
842static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
843 int iface, int altno)
844{
845 /* Reset ALL ifaces to 0 altsetting.
846 * Call it for every possible altsetting of every interface.
847 */
848 usb_set_interface(chip->dev, iface, 0);
849 if (chip->setup & MAUDIO_SET) {
850 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
851 if (iface != 1 && iface != 2)
852 return 1; /* skip all interfaces but 1 and 2 */
853 } else {
854 unsigned int mask;
855 if (iface == 1 || iface == 2)
856 return 1; /* skip interfaces 1 and 2 */
857 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
858 return 1; /* skip this altsetting */
859 mask = chip->setup & MAUDIO_SET_MASK;
860 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
861 return 1; /* skip this altsetting */
862 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
863 return 1; /* skip this altsetting */
864 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
865 return 1; /* skip this altsetting */
866 }
867 }
868 snd_printdd(KERN_INFO
869 "using altsetting %d for interface %d config %d\n",
870 altno, iface, chip->setup);
871 return 0; /* keep this altsetting */
872}
e5779998
DM		 873
874static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
875 int iface,
876 int altno)
877{
878 /* Reset ALL ifaces to 0 altsetting.
879 * Call it for every possible altsetting of every interface.
880 */
881 usb_set_interface(chip->dev, iface, 0);
882
0f5733b0
GP		 883 if (chip->setup & MAUDIO_SET) {
884 unsigned int mask;
885 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
e5779998 886 return 1; /* skip this altsetting */
0f5733b0 887 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
e5779998 888 return 1; /* skip this altsetting */
0f5733b0
GP		 889 mask = chip->setup & MAUDIO_SET_MASK;
890 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
e5779998 891 return 1; /* skip this altsetting */
0f5733b0 892 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
e5779998 893 return 1; /* skip this altsetting */
0f5733b0 894 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
e5779998 895 return 1; /* skip this altsetting */
0f5733b0 896 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
e5779998
DM		 897 return 1; /* skip this altsetting */
898 }
899
900 return 0; /* keep this altsetting */
901}
902
0f5733b0
GP		 903static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
904 int iface, int altno)
905{
906 /* Reset ALL ifaces to 0 altsetting.
907 * Call it for every possible altsetting of every interface.
908 */
909 usb_set_interface(chip->dev, iface, 0);
910
911 /* possible configuration where both inputs and only one output is
912 *used is not supported by the current setup
913 */
914 if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
915 if (chip->setup & MAUDIO_SET_96K) {
916 if (altno != 3 && altno != 6)
917 return 1;
918 } else if (chip->setup & MAUDIO_SET_DI) {
919 if (iface == 4)
920 return 1; /* no analog input */
921 if (altno != 2 && altno != 5)
922 return 1; /* enable only altsets 2 and 5 */
923 } else {
924 if (iface == 5)
925 return 1; /* disable digialt input */
926 if (altno != 2 && altno != 5)
927 return 1; /* enalbe only altsets 2 and 5 */
928 }
929 } else {
930 /* keep only 16-Bit mode */
931 if (altno != 1)
932 return 1;
933 }
934
935 snd_printdd(KERN_INFO
936 "using altsetting %d for interface %d config %d\n",
937 altno, iface, chip->setup);
938 return 0; /* keep this altsetting */
939}
940
e5779998
DM		 941int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
942 int iface,
943 int altno)
944{
945 /* audiophile usb: skip altsets incompatible with device_setup */
946 if (chip->usb_id == USB_ID(0x0763, 0x2003))
947 return audiophile_skip_setting_quirk(chip, iface, altno);
0f5733b0
GP		 948 /* quattro usb: skip altsets incompatible with device_setup */
949 if (chip->usb_id == USB_ID(0x0763, 0x2001))
950 return quattro_skip_setting_quirk(chip, iface, altno);
951 /* fasttrackpro usb: skip altsets incompatible with device_setup */
952 if (chip->usb_id == USB_ID(0x0763, 0x2012))
953 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
e5779998
DM		 954
955 return 0;
956}
957
958int snd_usb_apply_boot_quirk(struct usb_device *dev,
959 struct usb_interface *intf,
960 const struct snd_usb_audio_quirk *quirk)
961{
962 u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
963 le16_to_cpu(dev->descriptor.idProduct));
964
3347b26c
DM		 965 switch (id) {
966 case USB_ID(0x041e, 0x3000):
967 /* SB Extigy needs special boot-up sequence */
968 /* if more models come, this will go to the quirk list. */
e5779998
DM		 969 return snd_usb_extigy_boot_quirk(dev, intf);
970
3347b26c
DM		 971 case USB_ID(0x041e, 0x3020):
972 /* SB Audigy 2 NX needs its own boot-up magic, too */
e5779998
DM		 973 return snd_usb_audigy2nx_boot_quirk(dev);
974
3347b26c
DM		 975 case USB_ID(0x10f5, 0x0200):
976 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
e5779998
DM		 977 return snd_usb_cm106_boot_quirk(dev);
978
3347b26c
DM		 979 case USB_ID(0x0d8c, 0x0102):
980 /* C-Media CM6206 / CM106-Like Sound Device */
8129e79e 981 case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
e5779998
DM		 982 return snd_usb_cm6206_boot_quirk(dev);
983
cb99864d
DZ		 984 case USB_ID(0x0dba, 0x3000):
985 /* Digidesign Mbox 2 */
986 return snd_usb_mbox2_boot_quirk(dev);
987
11e424e8
EG		 988 case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */
989 case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */
990 return snd_usb_novation_boot_quirk(dev);
5e212332 991
3347b26c
DM		 992 case USB_ID(0x133e, 0x0815):
993 /* Access Music VirusTI Desktop */
e5779998
DM		 994 return snd_usb_accessmusic_boot_quirk(dev);
995
759e890f 996 case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
3347b26c
DM		 997 case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
998 case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
54a8c500 999 return snd_usb_nativeinstruments_boot_quirk(dev);
0f5733b0
GP		 1000 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
1001 return snd_usb_fasttrackpro_boot_quirk(dev);
19570d74
TI		 1002 case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */
1003 return snd_usb_gamecon780_boot_quirk(dev);
3347b26c 1004 }
54a8c500 1005
e5779998
DM		 1006 return 0;
1007}
1008
1009/*
1010 * check if the device uses big-endian samples
1011 */
1012int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
1013{
48fc7f7e 1014 /* it depends on altsetting whether the device is big-endian or not */
e5779998
DM		 1015 switch (chip->usb_id) {
1016 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
0f5733b0
GP		 1017 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1018 fp->altsetting == 5 || fp->altsetting == 6)
e5779998
DM		 1019 return 1;
1020 break;
1021 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
1022 if (chip->setup == 0x00 ||
0f5733b0
GP		 1023 fp->altsetting == 1 || fp->altsetting == 2 ||
1024 fp->altsetting == 3)
1025 return 1;
1026 break;
1027 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
1028 if (fp->altsetting == 2 || fp->altsetting == 3 ||
1029 fp->altsetting == 5 || fp->altsetting == 6)
e5779998 1030 return 1;
0f5733b0 1031 break;
e5779998
DM		 1032 }
1033 return 0;
1034}
1035
1036/*
1cdfa9f3 1037 * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
e5779998
DM		 1038 * not for interface.
1039 */
1040
1041enum {
1042 EMU_QUIRK_SR_44100HZ = 0,
1043 EMU_QUIRK_SR_48000HZ,
1044 EMU_QUIRK_SR_88200HZ,
1045 EMU_QUIRK_SR_96000HZ,
1046 EMU_QUIRK_SR_176400HZ,
1047 EMU_QUIRK_SR_192000HZ
1048};
1049
1050static void set_format_emu_quirk(struct snd_usb_substream *subs,
1051 struct audioformat *fmt)
1052{
1053 unsigned char emu_samplerate_id = 0;
1054
1055 /* When capture is active
1056 * sample rate shouldn't be changed
1057 * by playback substream
1058 */
1059 if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
1060 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
1061 return;
1062 }
1063
1064 switch (fmt->rate_min) {
1065 case 48000:
1066 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
1067 break;
1068 case 88200:
1069 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
1070 break;
1071 case 96000:
1072 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
1073 break;
1074 case 176400:
1075 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
1076 break;
1077 case 192000:
1078 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
1079 break;
1080 default:
1081 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
1082 break;
1083 }
1084 snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
1539d4f8 1085 subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
e5779998
DM		 1086}
1087
1088void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
1089 struct audioformat *fmt)
1090{
1091 switch (subs->stream->chip->usb_id) {
1092 case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
1093 case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
1094 case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
1cdfa9f3 1095 case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
e5779998
DM		 1096 set_format_emu_quirk(subs, fmt);
1097 break;
1098 }
1099}
1100
2b58fd5b
DM		 1101void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
1102{
1103 /*
1104 * "Playback Design" products send bogus feedback data at the start
1105 * of the stream. Ignore them.
1106 */
1107 if ((le16_to_cpu(ep->chip->dev->descriptor.idVendor) == 0x23ba) &&
1108 ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
1109 ep->skip_packets = 4;
83e3acd4
EZ		 1110
1111 /*
e9a25e04
MG		 1112 * M-Audio Fast Track C400/C600 - when packets are not skipped, real
1113 * world latency varies by approx. +/- 50 frames (at 96KHz) each time
1114 * the stream is (re)started. When skipping packets 16 at endpoint
1115 * start up, the real world latency is stable within +/- 1 frame (also
83e3acd4
EZ		 1116 * across power cycles).
1117 */
e9a25e04
MG		 1118 if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
1119 ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
83e3acd4
EZ		 1120 ep->type == SND_USB_ENDPOINT_TYPE_DATA)
1121 ep->skip_packets = 16;
2b58fd5b
DM		 1122}
1123
21bb5aaf
DM		 1124void snd_usb_set_interface_quirk(struct usb_device *dev)
1125{
1126 /*
1127 * "Playback Design" products need a 50ms delay after setting the
1128 * USB interface.
1129 */
1130 if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
1131 mdelay(50);
1132}
1133
2b58fd5b
DM		 1134void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
1135 __u8 request, __u8 requesttype, __u16 value,
1136 __u16 index, void *data, __u16 size)
1137{
1138 /*
1139 * "Playback Design" products need a 20ms delay after each
1140 * class compliant request
1141 */
1142 if ((le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) &&
1143 (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
1144 mdelay(20);
1145}
1146
126825e7
DM		 1147/*
1148 * snd_usb_interface_dsd_format_quirks() is called from format.c to
1149 * augment the PCM format bit-field for DSD types. The UAC standards
1150 * don't have a designated bit field to denote DSD-capable interfaces,
1151 * hence all hardware that is known to support this format has to be
1152 * listed here.
1153 */
1154u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
1155 struct audioformat *fp,
1156 unsigned int sample_bytes)
1157{
1158 /* Playback Designs */
1159 if (le16_to_cpu(chip->dev->descriptor.idVendor) == 0x23ba) {
1160 switch (fp->altsetting) {
1161 case 1:
1162 fp->dsd_dop = true;
1163 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1164 case 2:
1165 fp->dsd_bitrev = true;
1166 return SNDRV_PCM_FMTBIT_DSD_U8;
1167 case 3:
1168 fp->dsd_bitrev = true;
1169 return SNDRV_PCM_FMTBIT_DSD_U16_LE;
1170 }
1171 }
1172
1173 return 0;
1174}
Linux kernel - Deliverables
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