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30#include <linux/bitops.h>
31#include <linux/init.h>
32#include <linux/list.h>
33#include <linux/log2.h>
34#include <linux/slab.h>
35#include <linux/string.h>
36#include <linux/usb.h>
37#include <linux/usb/audio.h>
38#include <linux/usb/audio-v2.h>
39#include <linux/usb/audio-v3.h>
40
41#include <sound/core.h>
42#include <sound/control.h>
43#include <sound/hwdep.h>
44#include <sound/info.h>
45#include <sound/tlv.h>
46
47#include "usbaudio.h"
48#include "mixer.h"
49#include "helper.h"
50#include "mixer_quirks.h"
51#include "power.h"
52
53#define MAX_ID_ELEMS 256
54
55struct usb_audio_term {
56 int id;
57 int type;
58 int channels;
59 unsigned int chconfig;
60 int name;
61};
62
63struct usbmix_name_map;
64
65struct mixer_build {
66 struct snd_usb_audio *chip;
67 struct usb_mixer_interface *mixer;
68 unsigned char *buffer;
69 unsigned int buflen;
70 DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS);
71 struct usb_audio_term oterm;
72 const struct usbmix_name_map *map;
73 const struct usbmix_selector_map *selector_map;
74};
75
76
77enum {
78 USB_XU_CLOCK_RATE = 0xe301,
79 USB_XU_CLOCK_SOURCE = 0xe302,
80 USB_XU_DIGITAL_IO_STATUS = 0xe303,
81 USB_XU_DEVICE_OPTIONS = 0xe304,
82 USB_XU_DIRECT_MONITORING = 0xe305,
83 USB_XU_METERING = 0xe306
84};
85enum {
86 USB_XU_CLOCK_SOURCE_SELECTOR = 0x02,
87 USB_XU_CLOCK_RATE_SELECTOR = 0x03,
88 USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01,
89 USB_XU_SOFT_LIMIT_SELECTOR = 0x03
90};
91
92
93
94
95
96
97#include "mixer_maps.c"
98
99static const struct usbmix_name_map *
100find_map(const struct usbmix_name_map *p, int unitid, int control)
101{
102 if (!p)
103 return NULL;
104
105 for (; p->id; p++) {
106 if (p->id == unitid &&
107 (!control || !p->control || control == p->control))
108 return p;
109 }
110 return NULL;
111}
112
113
114static int
115check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen)
116{
117 if (!p || !p->name)
118 return 0;
119
120 buflen--;
121 return strlcpy(buf, p->name, buflen);
122}
123
124
125#define filter_error(cval, err) \
126 ((cval)->head.mixer->ignore_ctl_error ? 0 : (err))
127
128
129static inline int
130check_ignored_ctl(const struct usbmix_name_map *p)
131{
132 if (!p || p->name || p->dB)
133 return 0;
134 return 1;
135}
136
137
138static inline void check_mapped_dB(const struct usbmix_name_map *p,
139 struct usb_mixer_elem_info *cval)
140{
141 if (p && p->dB) {
142 cval->dBmin = p->dB->min;
143 cval->dBmax = p->dB->max;
144 cval->initialized = 1;
145 }
146}
147
148
149static int check_mapped_selector_name(struct mixer_build *state, int unitid,
150 int index, char *buf, int buflen)
151{
152 const struct usbmix_selector_map *p;
153
154 if (!state->selector_map)
155 return 0;
156 for (p = state->selector_map; p->id; p++) {
157 if (p->id == unitid && index < p->count)
158 return strlcpy(buf, p->names[index], buflen);
159 }
160 return 0;
161}
162
163
164
165
166static void *find_audio_control_unit(struct mixer_build *state,
167 unsigned char unit)
168{
169
170 struct uac_feature_unit_descriptor *hdr = NULL;
171
172 while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr,
173 USB_DT_CS_INTERFACE)) != NULL) {
174 if (hdr->bLength >= 4 &&
175 hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL &&
176 hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER &&
177 hdr->bUnitID == unit)
178 return hdr;
179 }
180
181 return NULL;
182}
183
184
185
186
187static int snd_usb_copy_string_desc(struct snd_usb_audio *chip,
188 int index, char *buf, int maxlen)
189{
190 int len = usb_string(chip->dev, index, buf, maxlen - 1);
191
192 if (len < 0)
193 return 0;
194
195 buf[len] = 0;
196 return len;
197}
198
199
200
201
202static int convert_signed_value(struct usb_mixer_elem_info *cval, int val)
203{
204 switch (cval->val_type) {
205 case USB_MIXER_BOOLEAN:
206 return !!val;
207 case USB_MIXER_INV_BOOLEAN:
208 return !val;
209 case USB_MIXER_U8:
210 val &= 0xff;
211 break;
212 case USB_MIXER_S8:
213 val &= 0xff;
214 if (val >= 0x80)
215 val -= 0x100;
216 break;
217 case USB_MIXER_U16:
218 val &= 0xffff;
219 break;
220 case USB_MIXER_S16:
221 val &= 0xffff;
222 if (val >= 0x8000)
223 val -= 0x10000;
224 break;
225 }
226 return val;
227}
228
229
230
231
232static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val)
233{
234 switch (cval->val_type) {
235 case USB_MIXER_BOOLEAN:
236 return !!val;
237 case USB_MIXER_INV_BOOLEAN:
238 return !val;
239 case USB_MIXER_S8:
240 case USB_MIXER_U8:
241 return val & 0xff;
242 case USB_MIXER_S16:
243 case USB_MIXER_U16:
244 return val & 0xffff;
245 }
246 return 0;
247}
248
249static int get_relative_value(struct usb_mixer_elem_info *cval, int val)
250{
251 if (!cval->res)
252 cval->res = 1;
253 if (val < cval->min)
254 return 0;
255 else if (val >= cval->max)
256 return (cval->max - cval->min + cval->res - 1) / cval->res;
257 else
258 return (val - cval->min) / cval->res;
259}
260
261static int get_abs_value(struct usb_mixer_elem_info *cval, int val)
262{
263 if (val < 0)
264 return cval->min;
265 if (!cval->res)
266 cval->res = 1;
267 val *= cval->res;
268 val += cval->min;
269 if (val > cval->max)
270 return cval->max;
271 return val;
272}
273
274static int uac2_ctl_value_size(int val_type)
275{
276 switch (val_type) {
277 case USB_MIXER_S32:
278 case USB_MIXER_U32:
279 return 4;
280 case USB_MIXER_S16:
281 case USB_MIXER_U16:
282 return 2;
283 default:
284 return 1;
285 }
286 return 0;
287}
288
289
290
291
292
293
294static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request,
295 int validx, int *value_ret)
296{
297 struct snd_usb_audio *chip = cval->head.mixer->chip;
298 unsigned char buf[2];
299 int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
300 int timeout = 10;
301 int idx = 0, err;
302
303 err = snd_usb_lock_shutdown(chip);
304 if (err < 0)
305 return -EIO;
306
307 while (timeout-- > 0) {
308 idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
309 err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request,
310 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
311 validx, idx, buf, val_len);
312 if (err >= val_len) {
313 *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len));
314 err = 0;
315 goto out;
316 } else if (err == -ETIMEDOUT) {
317 goto out;
318 }
319 }
320 usb_audio_dbg(chip,
321 "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
322 request, validx, idx, cval->val_type);
323 err = -EINVAL;
324
325 out:
326 snd_usb_unlock_shutdown(chip);
327 return err;
328}
329
330static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request,
331 int validx, int *value_ret)
332{
333 struct snd_usb_audio *chip = cval->head.mixer->chip;
334
335 unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)];
336 unsigned char *val;
337 int idx = 0, ret, val_size, size;
338 __u8 bRequest;
339
340 val_size = uac2_ctl_value_size(cval->val_type);
341
342 if (request == UAC_GET_CUR) {
343 bRequest = UAC2_CS_CUR;
344 size = val_size;
345 } else {
346 bRequest = UAC2_CS_RANGE;
347 size = sizeof(__u16) + 3 * val_size;
348 }
349
350 memset(buf, 0, sizeof(buf));
351
352 ret = snd_usb_lock_shutdown(chip) ? -EIO : 0;
353 if (ret)
354 goto error;
355
356 idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
357 ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest,
358 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
359 validx, idx, buf, size);
360 snd_usb_unlock_shutdown(chip);
361
362 if (ret < 0) {
363error:
364 usb_audio_err(chip,
365 "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
366 request, validx, idx, cval->val_type);
367 return ret;
368 }
369
370
371
372 switch (request) {
373 case UAC_GET_CUR:
374 val = buf;
375 break;
376 case UAC_GET_MIN:
377 val = buf + sizeof(__u16);
378 break;
379 case UAC_GET_MAX:
380 val = buf + sizeof(__u16) + val_size;
381 break;
382 case UAC_GET_RES:
383 val = buf + sizeof(__u16) + val_size * 2;
384 break;
385 default:
386 return -EINVAL;
387 }
388
389 *value_ret = convert_signed_value(cval,
390 snd_usb_combine_bytes(val, val_size));
391
392 return 0;
393}
394
395static int get_ctl_value(struct usb_mixer_elem_info *cval, int request,
396 int validx, int *value_ret)
397{
398 validx += cval->idx_off;
399
400 return (cval->head.mixer->protocol == UAC_VERSION_1) ?
401 get_ctl_value_v1(cval, request, validx, value_ret) :
402 get_ctl_value_v2(cval, request, validx, value_ret);
403}
404
405static int get_cur_ctl_value(struct usb_mixer_elem_info *cval,
406 int validx, int *value)
407{
408 return get_ctl_value(cval, UAC_GET_CUR, validx, value);
409}
410
411
412static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval,
413 int channel, int *value)
414{
415 return get_ctl_value(cval, UAC_GET_CUR,
416 (cval->control << 8) | channel,
417 value);
418}
419
420int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
421 int channel, int index, int *value)
422{
423 int err;
424
425 if (cval->cached & (1 << channel)) {
426 *value = cval->cache_val[index];
427 return 0;
428 }
429 err = get_cur_mix_raw(cval, channel, value);
430 if (err < 0) {
431 if (!cval->head.mixer->ignore_ctl_error)
432 usb_audio_dbg(cval->head.mixer->chip,
433 "cannot get current value for control %d ch %d: err = %d\n",
434 cval->control, channel, err);
435 return err;
436 }
437 cval->cached |= 1 << channel;
438 cval->cache_val[index] = *value;
439 return 0;
440}
441
442
443
444
445
446int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
447 int request, int validx, int value_set)
448{
449 struct snd_usb_audio *chip = cval->head.mixer->chip;
450 unsigned char buf[4];
451 int idx = 0, val_len, err, timeout = 10;
452
453 validx += cval->idx_off;
454
455
456 if (cval->head.mixer->protocol == UAC_VERSION_1) {
457 val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
458 } else {
459 val_len = uac2_ctl_value_size(cval->val_type);
460
461
462 if (request != UAC_SET_CUR) {
463 usb_audio_dbg(chip, "RANGE setting not yet supported\n");
464 return -EINVAL;
465 }
466
467 request = UAC2_CS_CUR;
468 }
469
470 value_set = convert_bytes_value(cval, value_set);
471 buf[0] = value_set & 0xff;
472 buf[1] = (value_set >> 8) & 0xff;
473 buf[2] = (value_set >> 16) & 0xff;
474 buf[3] = (value_set >> 24) & 0xff;
475
476 err = snd_usb_lock_shutdown(chip);
477 if (err < 0)
478 return -EIO;
479
480 while (timeout-- > 0) {
481 idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
482 err = snd_usb_ctl_msg(chip->dev,
483 usb_sndctrlpipe(chip->dev, 0), request,
484 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
485 validx, idx, buf, val_len);
486 if (err >= 0) {
487 err = 0;
488 goto out;
489 } else if (err == -ETIMEDOUT) {
490 goto out;
491 }
492 }
493 usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n",
494 request, validx, idx, cval->val_type, buf[0], buf[1]);
495 err = -EINVAL;
496
497 out:
498 snd_usb_unlock_shutdown(chip);
499 return err;
500}
501
502static int set_cur_ctl_value(struct usb_mixer_elem_info *cval,
503 int validx, int value)
504{
505 return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value);
506}
507
508int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
509 int index, int value)
510{
511 int err;
512 unsigned int read_only = (channel == 0) ?
513 cval->master_readonly :
514 cval->ch_readonly & (1 << (channel - 1));
515
516 if (read_only) {
517 usb_audio_dbg(cval->head.mixer->chip,
518 "%s(): channel %d of control %d is read_only\n",
519 __func__, channel, cval->control);
520 return 0;
521 }
522
523 err = snd_usb_mixer_set_ctl_value(cval,
524 UAC_SET_CUR, (cval->control << 8) | channel,
525 value);
526 if (err < 0)
527 return err;
528 cval->cached |= 1 << channel;
529 cval->cache_val[index] = value;
530 return 0;
531}
532
533
534
535
536int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
537 unsigned int size, unsigned int __user *_tlv)
538{
539 struct usb_mixer_elem_info *cval = kcontrol->private_data;
540 DECLARE_TLV_DB_MINMAX(scale, 0, 0);
541
542 if (size < sizeof(scale))
543 return -ENOMEM;
544 if (cval->min_mute)
545 scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE;
546 scale[2] = cval->dBmin;
547 scale[3] = cval->dBmax;
548 if (copy_to_user(_tlv, scale, sizeof(scale)))
549 return -EFAULT;
550 return 0;
551}
552
553
554
555
556
557static int parse_audio_unit(struct mixer_build *state, int unitid);
558
559
560
561
562
563
564static int check_matrix_bitmap(unsigned char *bmap,
565 int ich, int och, int num_outs)
566{
567 int idx = ich * num_outs + och;
568 return bmap[idx >> 3] & (0x80 >> (idx & 7));
569}
570
571
572
573
574
575
576
577
578int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list,
579 struct snd_kcontrol *kctl)
580{
581 struct usb_mixer_interface *mixer = list->mixer;
582 int err;
583
584 while (snd_ctl_find_id(mixer->chip->card, &kctl->id))
585 kctl->id.index++;
586 err = snd_ctl_add(mixer->chip->card, kctl);
587 if (err < 0) {
588 usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n",
589 err);
590 return err;
591 }
592 list->kctl = kctl;
593 list->next_id_elem = mixer->id_elems[list->id];
594 mixer->id_elems[list->id] = list;
595 return 0;
596}
597
598
599
600
601
602static struct iterm_name_combo {
603 int type;
604 char *name;
605} iterm_names[] = {
606 { 0x0300, "Output" },
607 { 0x0301, "Speaker" },
608 { 0x0302, "Headphone" },
609 { 0x0303, "HMD Audio" },
610 { 0x0304, "Desktop Speaker" },
611 { 0x0305, "Room Speaker" },
612 { 0x0306, "Com Speaker" },
613 { 0x0307, "LFE" },
614 { 0x0600, "External In" },
615 { 0x0601, "Analog In" },
616 { 0x0602, "Digital In" },
617 { 0x0603, "Line" },
618 { 0x0604, "Legacy In" },
619 { 0x0605, "IEC958 In" },
620 { 0x0606, "1394 DA Stream" },
621 { 0x0607, "1394 DV Stream" },
622 { 0x0700, "Embedded" },
623 { 0x0701, "Noise Source" },
624 { 0x0702, "Equalization Noise" },
625 { 0x0703, "CD" },
626 { 0x0704, "DAT" },
627 { 0x0705, "DCC" },
628 { 0x0706, "MiniDisk" },
629 { 0x0707, "Analog Tape" },
630 { 0x0708, "Phonograph" },
631 { 0x0709, "VCR Audio" },
632 { 0x070a, "Video Disk Audio" },
633 { 0x070b, "DVD Audio" },
634 { 0x070c, "TV Tuner Audio" },
635 { 0x070d, "Satellite Rec Audio" },
636 { 0x070e, "Cable Tuner Audio" },
637 { 0x070f, "DSS Audio" },
638 { 0x0710, "Radio Receiver" },
639 { 0x0711, "Radio Transmitter" },
640 { 0x0712, "Multi-Track Recorder" },
641 { 0x0713, "Synthesizer" },
642 { 0 },
643};
644
645static int get_term_name(struct snd_usb_audio *chip, struct usb_audio_term *iterm,
646 unsigned char *name, int maxlen, int term_only)
647{
648 struct iterm_name_combo *names;
649 int len;
650
651 if (iterm->name) {
652 len = snd_usb_copy_string_desc(chip, iterm->name,
653 name, maxlen);
654 if (len)
655 return len;
656 }
657
658
659 if (iterm->type >> 16) {
660 if (term_only)
661 return 0;
662 switch (iterm->type >> 16) {
663 case UAC3_SELECTOR_UNIT:
664 strcpy(name, "Selector");
665 return 8;
666 case UAC3_PROCESSING_UNIT:
667 strcpy(name, "Process Unit");
668 return 12;
669 case UAC3_EXTENSION_UNIT:
670 strcpy(name, "Ext Unit");
671 return 8;
672 case UAC3_MIXER_UNIT:
673 strcpy(name, "Mixer");
674 return 5;
675 default:
676 return sprintf(name, "Unit %d", iterm->id);
677 }
678 }
679
680 switch (iterm->type & 0xff00) {
681 case 0x0100:
682 strcpy(name, "PCM");
683 return 3;
684 case 0x0200:
685 strcpy(name, "Mic");
686 return 3;
687 case 0x0400:
688 strcpy(name, "Headset");
689 return 7;
690 case 0x0500:
691 strcpy(name, "Phone");
692 return 5;
693 }
694
695 for (names = iterm_names; names->type; names++) {
696 if (names->type == iterm->type) {
697 strcpy(name, names->name);
698 return strlen(names->name);
699 }
700 }
701
702 return 0;
703}
704
705
706
707
708static int get_cluster_channels_v3(struct mixer_build *state, unsigned int cluster_id)
709{
710 struct uac3_cluster_header_descriptor c_header;
711 int err;
712
713 err = snd_usb_ctl_msg(state->chip->dev,
714 usb_rcvctrlpipe(state->chip->dev, 0),
715 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
716 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
717 cluster_id,
718 snd_usb_ctrl_intf(state->chip),
719 &c_header, sizeof(c_header));
720 if (err < 0)
721 goto error;
722 if (err != sizeof(c_header)) {
723 err = -EIO;
724 goto error;
725 }
726
727 return c_header.bNrChannels;
728
729error:
730 usb_audio_err(state->chip, "cannot request logical cluster ID: %d (err: %d)\n", cluster_id, err);
731 return err;
732}
733
734
735
736
737static int uac_mixer_unit_get_channels(struct mixer_build *state,
738 struct uac_mixer_unit_descriptor *desc)
739{
740 int mu_channels;
741 void *c;
742
743 if (desc->bLength < sizeof(*desc))
744 return -EINVAL;
745 if (!desc->bNrInPins)
746 return -EINVAL;
747
748 switch (state->mixer->protocol) {
749 case UAC_VERSION_1:
750 case UAC_VERSION_2:
751 default:
752 if (desc->bLength < sizeof(*desc) + desc->bNrInPins + 1)
753 return 0;
754 mu_channels = uac_mixer_unit_bNrChannels(desc);
755 break;
756 case UAC_VERSION_3:
757 mu_channels = get_cluster_channels_v3(state,
758 uac3_mixer_unit_wClusterDescrID(desc));
759 break;
760 }
761
762 if (!mu_channels)
763 return 0;
764
765 c = uac_mixer_unit_bmControls(desc, state->mixer->protocol);
766 if (c - (void *)desc + (mu_channels - 1) / 8 >= desc->bLength)
767 return 0;
768
769 return mu_channels;
770}
771
772
773
774
775
776static int check_input_term(struct mixer_build *state, int id,
777 struct usb_audio_term *term)
778{
779 int protocol = state->mixer->protocol;
780 int err;
781 void *p1;
782
783 memset(term, 0, sizeof(*term));
784 while ((p1 = find_audio_control_unit(state, id)) != NULL) {
785 unsigned char *hdr = p1;
786 term->id = id;
787
788 if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) {
789 switch (hdr[2]) {
790 case UAC_INPUT_TERMINAL:
791 if (protocol == UAC_VERSION_1) {
792 struct uac_input_terminal_descriptor *d = p1;
793
794 term->type = le16_to_cpu(d->wTerminalType);
795 term->channels = d->bNrChannels;
796 term->chconfig = le16_to_cpu(d->wChannelConfig);
797 term->name = d->iTerminal;
798 } else {
799 struct uac2_input_terminal_descriptor *d = p1;
800
801
802
803 err = check_input_term(state, d->bCSourceID, term);
804 if (err < 0)
805 return err;
806
807
808
809
810 term->id = id;
811 term->type = le16_to_cpu(d->wTerminalType);
812 term->channels = d->bNrChannels;
813 term->chconfig = le32_to_cpu(d->bmChannelConfig);
814 term->name = d->iTerminal;
815 }
816 return 0;
817 case UAC_FEATURE_UNIT: {
818
819 struct uac_feature_unit_descriptor *d = p1;
820
821 id = d->bSourceID;
822 break;
823 }
824 case UAC_MIXER_UNIT: {
825 struct uac_mixer_unit_descriptor *d = p1;
826
827 term->type = UAC3_MIXER_UNIT << 16;
828 term->channels = uac_mixer_unit_bNrChannels(d);
829 term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol);
830 term->name = uac_mixer_unit_iMixer(d);
831 return 0;
832 }
833 case UAC_SELECTOR_UNIT:
834 case UAC2_CLOCK_SELECTOR: {
835 struct uac_selector_unit_descriptor *d = p1;
836
837 err = check_input_term(state, d->baSourceID[0], term);
838 if (err < 0)
839 return err;
840 term->type = UAC3_SELECTOR_UNIT << 16;
841 term->id = id;
842 term->name = uac_selector_unit_iSelector(d);
843 return 0;
844 }
845 case UAC1_PROCESSING_UNIT:
846
847 if (protocol == UAC_VERSION_1)
848 term->type = UAC3_PROCESSING_UNIT << 16;
849 else
850 term->type = UAC3_EFFECT_UNIT << 16;
851
852 case UAC1_EXTENSION_UNIT:
853
854 if (protocol == UAC_VERSION_1 && !term->type)
855 term->type = UAC3_EXTENSION_UNIT << 16;
856 else if (protocol == UAC_VERSION_2 && !term->type)
857 term->type = UAC3_PROCESSING_UNIT << 16;
858
859 case UAC2_EXTENSION_UNIT_V2: {
860 struct uac_processing_unit_descriptor *d = p1;
861
862 if (protocol == UAC_VERSION_2 &&
863 hdr[2] == UAC2_EFFECT_UNIT) {
864
865
866
867 return 0;
868 }
869
870 if (d->bNrInPins) {
871 id = d->baSourceID[0];
872 break;
873 }
874 if (!term->type)
875 term->type = UAC3_EXTENSION_UNIT << 16;
876
877 term->channels = uac_processing_unit_bNrChannels(d);
878 term->chconfig = uac_processing_unit_wChannelConfig(d, protocol);
879 term->name = uac_processing_unit_iProcessing(d, protocol);
880 return 0;
881 }
882 case UAC2_CLOCK_SOURCE: {
883 struct uac_clock_source_descriptor *d = p1;
884
885 term->type = UAC3_CLOCK_SOURCE << 16;
886 term->id = id;
887 term->name = d->iClockSource;
888 return 0;
889 }
890 default:
891 return -ENODEV;
892 }
893 } else {
894 switch (hdr[2]) {
895 case UAC_INPUT_TERMINAL: {
896 struct uac3_input_terminal_descriptor *d = p1;
897
898
899
900 err = check_input_term(state, d->bCSourceID, term);
901 if (err < 0)
902 return err;
903
904
905
906
907 term->id = id;
908 term->type = le16_to_cpu(d->wTerminalType);
909
910 err = get_cluster_channels_v3(state, le16_to_cpu(d->wClusterDescrID));
911 if (err < 0)
912 return err;
913 term->channels = err;
914
915
916 term->chconfig = 0;
917
918 term->name = le16_to_cpu(d->wTerminalDescrStr);
919 return 0;
920 }
921 case UAC3_FEATURE_UNIT: {
922 struct uac3_feature_unit_descriptor *d = p1;
923
924 id = d->bSourceID;
925 break;
926 }
927 case UAC3_CLOCK_SOURCE: {
928 struct uac3_clock_source_descriptor *d = p1;
929
930 term->type = UAC3_CLOCK_SOURCE << 16;
931 term->id = id;
932 term->name = le16_to_cpu(d->wClockSourceStr);
933 return 0;
934 }
935 case UAC3_MIXER_UNIT: {
936 struct uac_mixer_unit_descriptor *d = p1;
937
938 err = uac_mixer_unit_get_channels(state, d);
939 if (err <= 0)
940 return err;
941
942 term->channels = err;
943 term->type = UAC3_MIXER_UNIT << 16;
944
945 return 0;
946 }
947 case UAC3_SELECTOR_UNIT:
948 case UAC3_CLOCK_SELECTOR: {
949 struct uac_selector_unit_descriptor *d = p1;
950
951 err = check_input_term(state, d->baSourceID[0], term);
952 if (err < 0)
953 return err;
954 term->type = UAC3_SELECTOR_UNIT << 16;
955 term->id = id;
956 term->name = 0;
957
958 return 0;
959 }
960 case UAC3_PROCESSING_UNIT: {
961 struct uac_processing_unit_descriptor *d = p1;
962
963 if (!d->bNrInPins)
964 return -EINVAL;
965
966
967 err = check_input_term(state, d->baSourceID[0], term);
968 if (err < 0)
969 return err;
970
971 term->type = UAC3_PROCESSING_UNIT << 16;
972 term->id = id;
973 term->name = 0;
974
975 return 0;
976 }
977 default:
978 return -ENODEV;
979 }
980 }
981 }
982 return -ENODEV;
983}
984
985
986
987
988
989
990struct usb_feature_control_info {
991 int control;
992 const char *name;
993 int type;
994 int type_uac2;
995};
996
997static struct usb_feature_control_info audio_feature_info[] = {
998 { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 },
999 { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 },
1000 { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 },
1001 { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 },
1002 { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 },
1003 { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 },
1004 { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 },
1005 { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 },
1006 { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 },
1007 { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 },
1008
1009 { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 },
1010 { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 },
1011 { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 },
1012};
1013
1014
1015void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl)
1016{
1017 kfree(kctl->private_data);
1018 kctl->private_data = NULL;
1019}
1020
1021
1022
1023
1024
1025
1026static void volume_control_quirks(struct usb_mixer_elem_info *cval,
1027 struct snd_kcontrol *kctl)
1028{
1029 struct snd_usb_audio *chip = cval->head.mixer->chip;
1030 switch (chip->usb_id) {
1031 case USB_ID(0x0763, 0x2030):
1032 case USB_ID(0x0763, 0x2031):
1033 if (strcmp(kctl->id.name, "Effect Duration") == 0) {
1034 cval->min = 0x0000;
1035 cval->max = 0xffff;
1036 cval->res = 0x00e6;
1037 break;
1038 }
1039 if (strcmp(kctl->id.name, "Effect Volume") == 0 ||
1040 strcmp(kctl->id.name, "Effect Feedback Volume") == 0) {
1041 cval->min = 0x00;
1042 cval->max = 0xff;
1043 break;
1044 }
1045 if (strstr(kctl->id.name, "Effect Return") != NULL) {
1046 cval->min = 0xb706;
1047 cval->max = 0xff7b;
1048 cval->res = 0x0073;
1049 break;
1050 }
1051 if ((strstr(kctl->id.name, "Playback Volume") != NULL) ||
1052 (strstr(kctl->id.name, "Effect Send") != NULL)) {
1053 cval->min = 0xb5fb;
1054 cval->max = 0xfcfe;
1055 cval->res = 0x0073;
1056 }
1057 break;
1058
1059 case USB_ID(0x0763, 0x2081):
1060 case USB_ID(0x0763, 0x2080):
1061 if (strcmp(kctl->id.name, "Effect Duration") == 0) {
1062 usb_audio_info(chip,
1063 "set quirk for FTU Effect Duration\n");
1064 cval->min = 0x0000;
1065 cval->max = 0x7f00;
1066 cval->res = 0x0100;
1067 break;
1068 }
1069 if (strcmp(kctl->id.name, "Effect Volume") == 0 ||
1070 strcmp(kctl->id.name, "Effect Feedback Volume") == 0) {
1071 usb_audio_info(chip,
1072 "set quirks for FTU Effect Feedback/Volume\n");
1073 cval->min = 0x00;
1074 cval->max = 0x7f;
1075 break;
1076 }
1077 break;
1078
1079 case USB_ID(0x0d8c, 0x0103):
1080 if (!strcmp(kctl->id.name, "PCM Playback Volume")) {
1081 usb_audio_info(chip,
1082 "set volume quirk for CM102-A+/102S+\n");
1083 cval->min = -256;
1084 }
1085 break;
1086
1087 case USB_ID(0x0471, 0x0101):
1088 case USB_ID(0x0471, 0x0104):
1089 case USB_ID(0x0471, 0x0105):
1090 case USB_ID(0x0672, 0x1041):
1091
1092
1093
1094
1095
1096 if (!strcmp(kctl->id.name, "PCM Playback Volume") &&
1097 cval->min == -15616) {
1098 usb_audio_info(chip,
1099 "set volume quirk for UDA1321/N101 chip\n");
1100 cval->max = -256;
1101 }
1102 break;
1103
1104 case USB_ID(0x046d, 0x09a4):
1105 if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
1106 usb_audio_info(chip,
1107 "set volume quirk for QuickCam E3500\n");
1108 cval->min = 6080;
1109 cval->max = 8768;
1110 cval->res = 192;
1111 }
1112 break;
1113
1114 case USB_ID(0x046d, 0x0807):
1115 case USB_ID(0x046d, 0x0808):
1116 case USB_ID(0x046d, 0x0809):
1117 case USB_ID(0x046d, 0x0819):
1118 case USB_ID(0x046d, 0x081b):
1119 case USB_ID(0x046d, 0x081d):
1120 case USB_ID(0x046d, 0x0825):
1121 case USB_ID(0x046d, 0x0826):
1122 case USB_ID(0x046d, 0x08ca):
1123 case USB_ID(0x046d, 0x0991):
1124 case USB_ID(0x046d, 0x09a2):
1125
1126
1127
1128
1129 if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
1130 usb_audio_info(chip,
1131 "set resolution quirk: cval->res = 384\n");
1132 cval->res = 384;
1133 }
1134 break;
1135 }
1136}
1137
1138
1139
1140
1141static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval,
1142 int default_min, struct snd_kcontrol *kctl)
1143{
1144
1145 cval->min = default_min;
1146 cval->max = cval->min + 1;
1147 cval->res = 1;
1148 cval->dBmin = cval->dBmax = 0;
1149
1150 if (cval->val_type == USB_MIXER_BOOLEAN ||
1151 cval->val_type == USB_MIXER_INV_BOOLEAN) {
1152 cval->initialized = 1;
1153 } else {
1154 int minchn = 0;
1155 if (cval->cmask) {
1156 int i;
1157 for (i = 0; i < MAX_CHANNELS; i++)
1158 if (cval->cmask & (1 << i)) {
1159 minchn = i + 1;
1160 break;
1161 }
1162 }
1163 if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 ||
1164 get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) {
1165 usb_audio_err(cval->head.mixer->chip,
1166 "%d:%d: cannot get min/max values for control %d (id %d)\n",
1167 cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip),
1168 cval->control, cval->head.id);
1169 return -EINVAL;
1170 }
1171 if (get_ctl_value(cval, UAC_GET_RES,
1172 (cval->control << 8) | minchn,
1173 &cval->res) < 0) {
1174 cval->res = 1;
1175 } else {
1176 int last_valid_res = cval->res;
1177
1178 while (cval->res > 1) {
1179 if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES,
1180 (cval->control << 8) | minchn,
1181 cval->res / 2) < 0)
1182 break;
1183 cval->res /= 2;
1184 }
1185 if (get_ctl_value(cval, UAC_GET_RES,
1186 (cval->control << 8) | minchn, &cval->res) < 0)
1187 cval->res = last_valid_res;
1188 }
1189 if (cval->res == 0)
1190 cval->res = 1;
1191
1192
1193
1194
1195
1196
1197
1198 if (cval->min + cval->res < cval->max) {
1199 int last_valid_res = cval->res;
1200 int saved, test, check;
1201 get_cur_mix_raw(cval, minchn, &saved);
1202 for (;;) {
1203 test = saved;
1204 if (test < cval->max)
1205 test += cval->res;
1206 else
1207 test -= cval->res;
1208 if (test < cval->min || test > cval->max ||
1209 snd_usb_set_cur_mix_value(cval, minchn, 0, test) ||
1210 get_cur_mix_raw(cval, minchn, &check)) {
1211 cval->res = last_valid_res;
1212 break;
1213 }
1214 if (test == check)
1215 break;
1216 cval->res *= 2;
1217 }
1218 snd_usb_set_cur_mix_value(cval, minchn, 0, saved);
1219 }
1220
1221 cval->initialized = 1;
1222 }
1223
1224 if (kctl)
1225 volume_control_quirks(cval, kctl);
1226
1227
1228
1229
1230 cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256;
1231 cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256;
1232 if (cval->dBmin > cval->dBmax) {
1233
1234 if (cval->dBmin < 0)
1235 cval->dBmax = 0;
1236 else if (cval->dBmin > 0)
1237 cval->dBmin = 0;
1238 if (cval->dBmin > cval->dBmax) {
1239
1240 return -EINVAL;
1241 }
1242 }
1243
1244 return 0;
1245}
1246
1247#define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL)
1248
1249
1250static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol,
1251 struct snd_ctl_elem_info *uinfo)
1252{
1253 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1254
1255 if (cval->val_type == USB_MIXER_BOOLEAN ||
1256 cval->val_type == USB_MIXER_INV_BOOLEAN)
1257 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1258 else
1259 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1260 uinfo->count = cval->channels;
1261 if (cval->val_type == USB_MIXER_BOOLEAN ||
1262 cval->val_type == USB_MIXER_INV_BOOLEAN) {
1263 uinfo->value.integer.min = 0;
1264 uinfo->value.integer.max = 1;
1265 } else {
1266 if (!cval->initialized) {
1267 get_min_max_with_quirks(cval, 0, kcontrol);
1268 if (cval->initialized && cval->dBmin >= cval->dBmax) {
1269 kcontrol->vd[0].access &=
1270 ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1271 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK);
1272 snd_ctl_notify(cval->head.mixer->chip->card,
1273 SNDRV_CTL_EVENT_MASK_INFO,
1274 &kcontrol->id);
1275 }
1276 }
1277 uinfo->value.integer.min = 0;
1278 uinfo->value.integer.max =
1279 (cval->max - cval->min + cval->res - 1) / cval->res;
1280 }
1281 return 0;
1282}
1283
1284
1285static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol,
1286 struct snd_ctl_elem_value *ucontrol)
1287{
1288 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1289 int c, cnt, val, err;
1290
1291 ucontrol->value.integer.value[0] = cval->min;
1292 if (cval->cmask) {
1293 cnt = 0;
1294 for (c = 0; c < MAX_CHANNELS; c++) {
1295 if (!(cval->cmask & (1 << c)))
1296 continue;
1297 err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val);
1298 if (err < 0)
1299 return filter_error(cval, err);
1300 val = get_relative_value(cval, val);
1301 ucontrol->value.integer.value[cnt] = val;
1302 cnt++;
1303 }
1304 return 0;
1305 } else {
1306
1307 err = snd_usb_get_cur_mix_value(cval, 0, 0, &val);
1308 if (err < 0)
1309 return filter_error(cval, err);
1310 val = get_relative_value(cval, val);
1311 ucontrol->value.integer.value[0] = val;
1312 }
1313 return 0;
1314}
1315
1316
1317static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol,
1318 struct snd_ctl_elem_value *ucontrol)
1319{
1320 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1321 int c, cnt, val, oval, err;
1322 int changed = 0;
1323
1324 if (cval->cmask) {
1325 cnt = 0;
1326 for (c = 0; c < MAX_CHANNELS; c++) {
1327 if (!(cval->cmask & (1 << c)))
1328 continue;
1329 err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval);
1330 if (err < 0)
1331 return filter_error(cval, err);
1332 val = ucontrol->value.integer.value[cnt];
1333 val = get_abs_value(cval, val);
1334 if (oval != val) {
1335 snd_usb_set_cur_mix_value(cval, c + 1, cnt, val);
1336 changed = 1;
1337 }
1338 cnt++;
1339 }
1340 } else {
1341
1342 err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval);
1343 if (err < 0)
1344 return filter_error(cval, err);
1345 val = ucontrol->value.integer.value[0];
1346 val = get_abs_value(cval, val);
1347 if (val != oval) {
1348 snd_usb_set_cur_mix_value(cval, 0, 0, val);
1349 changed = 1;
1350 }
1351 }
1352 return changed;
1353}
1354
1355
1356static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol,
1357 struct snd_ctl_elem_value *ucontrol)
1358{
1359 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1360 int val, err;
1361
1362 err = snd_usb_get_cur_mix_value(cval, 0, 0, &val);
1363 if (err < 0)
1364 return filter_error(cval, err);
1365 val = (val != 0);
1366 ucontrol->value.integer.value[0] = val;
1367 return 0;
1368}
1369
1370
1371static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol,
1372 struct snd_ctl_elem_value *ucontrol)
1373{
1374 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1375 struct snd_usb_audio *chip = cval->head.mixer->chip;
1376 int idx = 0, validx, ret, val;
1377
1378 validx = cval->control << 8 | 0;
1379
1380 ret = snd_usb_lock_shutdown(chip) ? -EIO : 0;
1381 if (ret)
1382 goto error;
1383
1384 idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8);
1385 if (cval->head.mixer->protocol == UAC_VERSION_2) {
1386 struct uac2_connectors_ctl_blk uac2_conn;
1387
1388 ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR,
1389 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
1390 validx, idx, &uac2_conn, sizeof(uac2_conn));
1391 val = !!uac2_conn.bNrChannels;
1392 } else {
1393 struct uac3_insertion_ctl_blk uac3_conn;
1394
1395 ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR,
1396 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
1397 validx, idx, &uac3_conn, sizeof(uac3_conn));
1398 val = !!uac3_conn.bmConInserted;
1399 }
1400
1401 snd_usb_unlock_shutdown(chip);
1402
1403 if (ret < 0) {
1404error:
1405 usb_audio_err(chip,
1406 "cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
1407 UAC_GET_CUR, validx, idx, cval->val_type);
1408 return ret;
1409 }
1410
1411 ucontrol->value.integer.value[0] = val;
1412 return 0;
1413}
1414
1415static struct snd_kcontrol_new usb_feature_unit_ctl = {
1416 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1417 .name = "",
1418 .info = mixer_ctl_feature_info,
1419 .get = mixer_ctl_feature_get,
1420 .put = mixer_ctl_feature_put,
1421};
1422
1423
1424static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = {
1425 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1426 .name = "",
1427 .info = mixer_ctl_feature_info,
1428 .get = mixer_ctl_feature_get,
1429 .put = NULL,
1430};
1431
1432
1433
1434
1435
1436static struct snd_kcontrol_new usb_bool_master_control_ctl_ro = {
1437 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1438 .name = "",
1439 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1440 .info = snd_ctl_boolean_mono_info,
1441 .get = mixer_ctl_master_bool_get,
1442 .put = NULL,
1443};
1444
1445static const struct snd_kcontrol_new usb_connector_ctl_ro = {
1446 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1447 .name = "",
1448 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1449 .info = snd_ctl_boolean_mono_info,
1450 .get = mixer_ctl_connector_get,
1451 .put = NULL,
1452};
1453
1454
1455
1456
1457
1458struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl;
1459
1460
1461
1462
1463static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str)
1464{
1465 return strlcat(kctl->id.name, str, sizeof(kctl->id.name));
1466}
1467
1468
1469
1470
1471
1472
1473static void check_no_speaker_on_headset(struct snd_kcontrol *kctl,
1474 struct snd_card *card)
1475{
1476 const char *names_to_check[] = {
1477 "Headset", "headset", "Headphone", "headphone", NULL};
1478 const char **s;
1479 bool found = false;
1480
1481 if (strcmp("Speaker", kctl->id.name))
1482 return;
1483
1484 for (s = names_to_check; *s; s++)
1485 if (strstr(card->shortname, *s)) {
1486 found = true;
1487 break;
1488 }
1489
1490 if (!found)
1491 return;
1492
1493 strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name));
1494}
1495
1496static struct usb_feature_control_info *get_feature_control_info(int control)
1497{
1498 int i;
1499
1500 for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) {
1501 if (audio_feature_info[i].control == control)
1502 return &audio_feature_info[i];
1503 }
1504 return NULL;
1505}
1506
1507static void __build_feature_ctl(struct usb_mixer_interface *mixer,
1508 const struct usbmix_name_map *imap,
1509 unsigned int ctl_mask, int control,
1510 struct usb_audio_term *iterm,
1511 struct usb_audio_term *oterm,
1512 int unitid, int nameid, int readonly_mask)
1513{
1514 struct usb_feature_control_info *ctl_info;
1515 unsigned int len = 0;
1516 int mapped_name = 0;
1517 struct snd_kcontrol *kctl;
1518 struct usb_mixer_elem_info *cval;
1519 const struct usbmix_name_map *map;
1520 unsigned int range;
1521
1522 if (control == UAC_FU_GRAPHIC_EQUALIZER) {
1523
1524 return;
1525 }
1526
1527 map = find_map(imap, unitid, control);
1528 if (check_ignored_ctl(map))
1529 return;
1530
1531 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
1532 if (!cval)
1533 return;
1534 snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid);
1535 cval->control = control;
1536 cval->cmask = ctl_mask;
1537
1538 ctl_info = get_feature_control_info(control);
1539 if (!ctl_info) {
1540 kfree(cval);
1541 return;
1542 }
1543 if (mixer->protocol == UAC_VERSION_1)
1544 cval->val_type = ctl_info->type;
1545 else
1546 cval->val_type = ctl_info->type_uac2 >= 0 ?
1547 ctl_info->type_uac2 : ctl_info->type;
1548
1549 if (ctl_mask == 0) {
1550 cval->channels = 1;
1551 cval->master_readonly = readonly_mask;
1552 } else {
1553 int i, c = 0;
1554 for (i = 0; i < 16; i++)
1555 if (ctl_mask & (1 << i))
1556 c++;
1557 cval->channels = c;
1558 cval->ch_readonly = readonly_mask;
1559 }
1560
1561
1562
1563
1564
1565
1566 if (cval->channels == readonly_mask)
1567 kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval);
1568 else
1569 kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
1570
1571 if (!kctl) {
1572 usb_audio_err(mixer->chip, "cannot malloc kcontrol\n");
1573 kfree(cval);
1574 return;
1575 }
1576 kctl->private_free = snd_usb_mixer_elem_free;
1577
1578 len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
1579 mapped_name = len != 0;
1580 if (!len && nameid)
1581 len = snd_usb_copy_string_desc(mixer->chip, nameid,
1582 kctl->id.name, sizeof(kctl->id.name));
1583
1584 switch (control) {
1585 case UAC_FU_MUTE:
1586 case UAC_FU_VOLUME:
1587
1588
1589
1590
1591
1592
1593
1594
1595 if (!len) {
1596 if (iterm)
1597 len = get_term_name(mixer->chip, iterm,
1598 kctl->id.name,
1599 sizeof(kctl->id.name), 1);
1600 if (!len && oterm)
1601 len = get_term_name(mixer->chip, oterm,
1602 kctl->id.name,
1603 sizeof(kctl->id.name), 1);
1604 if (!len)
1605 snprintf(kctl->id.name, sizeof(kctl->id.name),
1606 "Feature %d", unitid);
1607 }
1608
1609 if (!mapped_name)
1610 check_no_speaker_on_headset(kctl, mixer->chip->card);
1611
1612
1613
1614
1615
1616
1617 if (!mapped_name && oterm && !(oterm->type >> 16)) {
1618 if ((oterm->type & 0xff00) == 0x0100)
1619 append_ctl_name(kctl, " Capture");
1620 else
1621 append_ctl_name(kctl, " Playback");
1622 }
1623 append_ctl_name(kctl, control == UAC_FU_MUTE ?
1624 " Switch" : " Volume");
1625 break;
1626 default:
1627 if (!len)
1628 strlcpy(kctl->id.name, audio_feature_info[control-1].name,
1629 sizeof(kctl->id.name));
1630 break;
1631 }
1632
1633
1634 get_min_max_with_quirks(cval, 0, kctl);
1635
1636 if (control == UAC_FU_VOLUME) {
1637 check_mapped_dB(map, cval);
1638 if (cval->dBmin < cval->dBmax || !cval->initialized) {
1639 kctl->tlv.c = snd_usb_mixer_vol_tlv;
1640 kctl->vd[0].access |=
1641 SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1642 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
1643 }
1644 }
1645
1646 snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl);
1647
1648 range = (cval->max - cval->min) / cval->res;
1649
1650
1651
1652
1653
1654 if (range > 384) {
1655 usb_audio_warn(mixer->chip,
1656 "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.",
1657 range);
1658 usb_audio_warn(mixer->chip,
1659 "[%d] FU [%s] ch = %d, val = %d/%d/%d",
1660 cval->head.id, kctl->id.name, cval->channels,
1661 cval->min, cval->max, cval->res);
1662 }
1663
1664 usb_audio_dbg(mixer->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
1665 cval->head.id, kctl->id.name, cval->channels,
1666 cval->min, cval->max, cval->res);
1667 snd_usb_mixer_add_control(&cval->head, kctl);
1668}
1669
1670static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
1671 unsigned int ctl_mask, int control,
1672 struct usb_audio_term *iterm, int unitid,
1673 int readonly_mask)
1674{
1675 struct uac_feature_unit_descriptor *desc = raw_desc;
1676 int nameid = uac_feature_unit_iFeature(desc);
1677
1678 __build_feature_ctl(state->mixer, state->map, ctl_mask, control,
1679 iterm, &state->oterm, unitid, nameid, readonly_mask);
1680}
1681
1682static void build_feature_ctl_badd(struct usb_mixer_interface *mixer,
1683 unsigned int ctl_mask, int control, int unitid,
1684 const struct usbmix_name_map *badd_map)
1685{
1686 __build_feature_ctl(mixer, badd_map, ctl_mask, control,
1687 NULL, NULL, unitid, 0, 0);
1688}
1689
1690static void get_connector_control_name(struct usb_mixer_interface *mixer,
1691 struct usb_audio_term *term,
1692 bool is_input, char *name, int name_size)
1693{
1694 int name_len = get_term_name(mixer->chip, term, name, name_size, 0);
1695
1696 if (name_len == 0)
1697 strlcpy(name, "Unknown", name_size);
1698
1699
1700
1701
1702
1703
1704 if (is_input)
1705 strlcat(name, " - Input Jack", name_size);
1706 else
1707 strlcat(name, " - Output Jack", name_size);
1708}
1709
1710
1711static void build_connector_control(struct usb_mixer_interface *mixer,
1712 struct usb_audio_term *term, bool is_input)
1713{
1714 struct snd_kcontrol *kctl;
1715 struct usb_mixer_elem_info *cval;
1716
1717 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
1718 if (!cval)
1719 return;
1720 snd_usb_mixer_elem_init_std(&cval->head, mixer, term->id);
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731 if (mixer->protocol == UAC_VERSION_2)
1732 cval->control = UAC2_TE_CONNECTOR;
1733 else
1734 cval->control = UAC3_TE_INSERTION;
1735
1736 cval->val_type = USB_MIXER_BOOLEAN;
1737 cval->channels = 1;
1738 cval->min = 0;
1739 cval->max = 1;
1740 kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval);
1741 if (!kctl) {
1742 usb_audio_err(mixer->chip, "cannot malloc kcontrol\n");
1743 kfree(cval);
1744 return;
1745 }
1746 get_connector_control_name(mixer, term, is_input, kctl->id.name,
1747 sizeof(kctl->id.name));
1748 kctl->private_free = snd_usb_mixer_elem_free;
1749 snd_usb_mixer_add_control(&cval->head, kctl);
1750}
1751
1752static int parse_clock_source_unit(struct mixer_build *state, int unitid,
1753 void *_ftr)
1754{
1755 struct uac_clock_source_descriptor *hdr = _ftr;
1756 struct usb_mixer_elem_info *cval;
1757 struct snd_kcontrol *kctl;
1758 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1759 int ret;
1760
1761 if (state->mixer->protocol != UAC_VERSION_2)
1762 return -EINVAL;
1763
1764 if (hdr->bLength != sizeof(*hdr)) {
1765 usb_audio_dbg(state->chip,
1766 "Bogus clock source descriptor length of %d, ignoring.\n",
1767 hdr->bLength);
1768 return 0;
1769 }
1770
1771
1772
1773
1774
1775 if (!uac_v2v3_control_is_readable(hdr->bmControls,
1776 UAC2_CS_CONTROL_CLOCK_VALID))
1777 return 0;
1778
1779 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
1780 if (!cval)
1781 return -ENOMEM;
1782
1783 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID);
1784
1785 cval->min = 0;
1786 cval->max = 1;
1787 cval->channels = 1;
1788 cval->val_type = USB_MIXER_BOOLEAN;
1789 cval->control = UAC2_CS_CONTROL_CLOCK_VALID;
1790
1791 cval->master_readonly = 1;
1792
1793 kctl = snd_ctl_new1(&usb_bool_master_control_ctl_ro, cval);
1794
1795 if (!kctl) {
1796 kfree(cval);
1797 return -ENOMEM;
1798 }
1799
1800 kctl->private_free = snd_usb_mixer_elem_free;
1801 ret = snd_usb_copy_string_desc(state->chip, hdr->iClockSource,
1802 name, sizeof(name));
1803 if (ret > 0)
1804 snprintf(kctl->id.name, sizeof(kctl->id.name),
1805 "%s Validity", name);
1806 else
1807 snprintf(kctl->id.name, sizeof(kctl->id.name),
1808 "Clock Source %d Validity", hdr->bClockID);
1809
1810 return snd_usb_mixer_add_control(&cval->head, kctl);
1811}
1812
1813
1814
1815
1816
1817
1818static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
1819 void *_ftr)
1820{
1821 int channels, i, j;
1822 struct usb_audio_term iterm;
1823 unsigned int master_bits;
1824 int err, csize;
1825 struct uac_feature_unit_descriptor *hdr = _ftr;
1826 __u8 *bmaControls;
1827
1828 if (state->mixer->protocol == UAC_VERSION_1) {
1829 if (hdr->bLength < 7) {
1830 usb_audio_err(state->chip,
1831 "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
1832 unitid);
1833 return -EINVAL;
1834 }
1835 csize = hdr->bControlSize;
1836 if (!csize) {
1837 usb_audio_dbg(state->chip,
1838 "unit %u: invalid bControlSize == 0\n",
1839 unitid);
1840 return -EINVAL;
1841 }
1842 channels = (hdr->bLength - 7) / csize - 1;
1843 bmaControls = hdr->bmaControls;
1844 if (hdr->bLength < 7 + csize) {
1845 usb_audio_err(state->chip,
1846 "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
1847 unitid);
1848 return -EINVAL;
1849 }
1850 } else if (state->mixer->protocol == UAC_VERSION_2) {
1851 struct uac2_feature_unit_descriptor *ftr = _ftr;
1852 if (hdr->bLength < 6) {
1853 usb_audio_err(state->chip,
1854 "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
1855 unitid);
1856 return -EINVAL;
1857 }
1858 csize = 4;
1859 channels = (hdr->bLength - 6) / 4 - 1;
1860 bmaControls = ftr->bmaControls;
1861 if (hdr->bLength < 6 + csize) {
1862 usb_audio_err(state->chip,
1863 "unit %u: invalid UAC_FEATURE_UNIT descriptor\n",
1864 unitid);
1865 return -EINVAL;
1866 }
1867 } else {
1868 struct uac3_feature_unit_descriptor *ftr = _ftr;
1869
1870 if (hdr->bLength < 7) {
1871 usb_audio_err(state->chip,
1872 "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n",
1873 unitid);
1874 return -EINVAL;
1875 }
1876 csize = 4;
1877 channels = (ftr->bLength - 7) / 4 - 1;
1878 bmaControls = ftr->bmaControls;
1879 if (hdr->bLength < 7 + csize) {
1880 usb_audio_err(state->chip,
1881 "unit %u: invalid UAC3_FEATURE_UNIT descriptor\n",
1882 unitid);
1883 return -EINVAL;
1884 }
1885 }
1886
1887
1888 err = parse_audio_unit(state, hdr->bSourceID);
1889 if (err < 0)
1890 return err;
1891
1892
1893 err = check_input_term(state, hdr->bSourceID, &iterm);
1894 if (err < 0)
1895 return err;
1896
1897 master_bits = snd_usb_combine_bytes(bmaControls, csize);
1898
1899 switch (state->chip->usb_id) {
1900 case USB_ID(0x08bb, 0x2702):
1901 usb_audio_info(state->chip,
1902 "usbmixer: master volume quirk for PCM2702 chip\n");
1903
1904 master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME);
1905 break;
1906 case USB_ID(0x1130, 0xf211):
1907 usb_audio_info(state->chip,
1908 "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n");
1909
1910 channels = 0;
1911 break;
1912
1913 }
1914
1915 if (state->mixer->protocol == UAC_VERSION_1) {
1916
1917 for (i = 0; i < 10; i++) {
1918 unsigned int ch_bits = 0;
1919 int control = audio_feature_info[i].control;
1920
1921 for (j = 0; j < channels; j++) {
1922 unsigned int mask;
1923
1924 mask = snd_usb_combine_bytes(bmaControls +
1925 csize * (j+1), csize);
1926 if (mask & (1 << i))
1927 ch_bits |= (1 << j);
1928 }
1929
1930
1931
1932
1933
1934
1935 if (ch_bits & 1)
1936 build_feature_ctl(state, _ftr, ch_bits, control,
1937 &iterm, unitid, 0);
1938 if (master_bits & (1 << i))
1939 build_feature_ctl(state, _ftr, 0, control,
1940 &iterm, unitid, 0);
1941 }
1942 } else {
1943 for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) {
1944 unsigned int ch_bits = 0;
1945 unsigned int ch_read_only = 0;
1946 int control = audio_feature_info[i].control;
1947
1948 for (j = 0; j < channels; j++) {
1949 unsigned int mask;
1950
1951 mask = snd_usb_combine_bytes(bmaControls +
1952 csize * (j+1), csize);
1953 if (uac_v2v3_control_is_readable(mask, control)) {
1954 ch_bits |= (1 << j);
1955 if (!uac_v2v3_control_is_writeable(mask, control))
1956 ch_read_only |= (1 << j);
1957 }
1958 }
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973 if (ch_bits & 1)
1974 build_feature_ctl(state, _ftr, ch_bits, control,
1975 &iterm, unitid, ch_read_only);
1976 if (uac_v2v3_control_is_readable(master_bits, control))
1977 build_feature_ctl(state, _ftr, 0, control,
1978 &iterm, unitid,
1979 !uac_v2v3_control_is_writeable(master_bits,
1980 control));
1981 }
1982 }
1983
1984 return 0;
1985}
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997static void build_mixer_unit_ctl(struct mixer_build *state,
1998 struct uac_mixer_unit_descriptor *desc,
1999 int in_pin, int in_ch, int num_outs,
2000 int unitid, struct usb_audio_term *iterm)
2001{
2002 struct usb_mixer_elem_info *cval;
2003 unsigned int i, len;
2004 struct snd_kcontrol *kctl;
2005 const struct usbmix_name_map *map;
2006
2007 map = find_map(state->map, unitid, 0);
2008 if (check_ignored_ctl(map))
2009 return;
2010
2011 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
2012 if (!cval)
2013 return;
2014
2015 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid);
2016 cval->control = in_ch + 1;
2017 cval->val_type = USB_MIXER_S16;
2018 for (i = 0; i < num_outs; i++) {
2019 __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol);
2020
2021 if (check_matrix_bitmap(c, in_ch, i, num_outs)) {
2022 cval->cmask |= (1 << i);
2023 cval->channels++;
2024 }
2025 }
2026
2027
2028 get_min_max(cval, 0);
2029
2030 kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
2031 if (!kctl) {
2032 usb_audio_err(state->chip, "cannot malloc kcontrol\n");
2033 kfree(cval);
2034 return;
2035 }
2036 kctl->private_free = snd_usb_mixer_elem_free;
2037
2038 len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
2039 if (!len)
2040 len = get_term_name(state->chip, iterm, kctl->id.name,
2041 sizeof(kctl->id.name), 0);
2042 if (!len)
2043 len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1);
2044 append_ctl_name(kctl, " Volume");
2045
2046 usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n",
2047 cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max);
2048 snd_usb_mixer_add_control(&cval->head, kctl);
2049}
2050
2051static int parse_audio_input_terminal(struct mixer_build *state, int unitid,
2052 void *raw_desc)
2053{
2054 struct usb_audio_term iterm;
2055 unsigned int control, bmctls, term_id;
2056
2057 if (state->mixer->protocol == UAC_VERSION_2) {
2058 struct uac2_input_terminal_descriptor *d_v2 = raw_desc;
2059 if (d_v2->bLength < sizeof(*d_v2))
2060 return -EINVAL;
2061 control = UAC2_TE_CONNECTOR;
2062 term_id = d_v2->bTerminalID;
2063 bmctls = le16_to_cpu(d_v2->bmControls);
2064 } else if (state->mixer->protocol == UAC_VERSION_3) {
2065 struct uac3_input_terminal_descriptor *d_v3 = raw_desc;
2066 if (d_v3->bLength < sizeof(*d_v3))
2067 return -EINVAL;
2068 control = UAC3_TE_INSERTION;
2069 term_id = d_v3->bTerminalID;
2070 bmctls = le32_to_cpu(d_v3->bmControls);
2071 } else {
2072 return 0;
2073 }
2074
2075 check_input_term(state, term_id, &iterm);
2076
2077
2078 if (uac_v2v3_control_is_readable(bmctls, control))
2079 build_connector_control(state->mixer, &iterm, true);
2080
2081 return 0;
2082}
2083
2084
2085
2086
2087static int parse_audio_mixer_unit(struct mixer_build *state, int unitid,
2088 void *raw_desc)
2089{
2090 struct uac_mixer_unit_descriptor *desc = raw_desc;
2091 struct usb_audio_term iterm;
2092 int input_pins, num_ins, num_outs;
2093 int pin, ich, err;
2094
2095 err = uac_mixer_unit_get_channels(state, desc);
2096 if (err < 0) {
2097 usb_audio_err(state->chip,
2098 "invalid MIXER UNIT descriptor %d\n",
2099 unitid);
2100 return err;
2101 }
2102
2103 num_outs = err;
2104 input_pins = desc->bNrInPins;
2105
2106 num_ins = 0;
2107 ich = 0;
2108 for (pin = 0; pin < input_pins; pin++) {
2109 err = parse_audio_unit(state, desc->baSourceID[pin]);
2110 if (err < 0)
2111 continue;
2112
2113 if (!num_outs)
2114 continue;
2115 err = check_input_term(state, desc->baSourceID[pin], &iterm);
2116 if (err < 0)
2117 return err;
2118 num_ins += iterm.channels;
2119 for (; ich < num_ins; ich++) {
2120 int och, ich_has_controls = 0;
2121
2122 for (och = 0; och < num_outs; och++) {
2123 __u8 *c = uac_mixer_unit_bmControls(desc,
2124 state->mixer->protocol);
2125
2126 if (check_matrix_bitmap(c, ich, och, num_outs)) {
2127 ich_has_controls = 1;
2128 break;
2129 }
2130 }
2131 if (ich_has_controls)
2132 build_mixer_unit_ctl(state, desc, pin, ich, num_outs,
2133 unitid, &iterm);
2134 }
2135 }
2136 return 0;
2137}
2138
2139
2140
2141
2142
2143
2144static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol,
2145 struct snd_ctl_elem_value *ucontrol)
2146{
2147 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2148 int err, val;
2149
2150 err = get_cur_ctl_value(cval, cval->control << 8, &val);
2151 if (err < 0) {
2152 ucontrol->value.integer.value[0] = cval->min;
2153 return filter_error(cval, err);
2154 }
2155 val = get_relative_value(cval, val);
2156 ucontrol->value.integer.value[0] = val;
2157 return 0;
2158}
2159
2160
2161static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol,
2162 struct snd_ctl_elem_value *ucontrol)
2163{
2164 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2165 int val, oval, err;
2166
2167 err = get_cur_ctl_value(cval, cval->control << 8, &oval);
2168 if (err < 0)
2169 return filter_error(cval, err);
2170 val = ucontrol->value.integer.value[0];
2171 val = get_abs_value(cval, val);
2172 if (val != oval) {
2173 set_cur_ctl_value(cval, cval->control << 8, val);
2174 return 1;
2175 }
2176 return 0;
2177}
2178
2179
2180static const struct snd_kcontrol_new mixer_procunit_ctl = {
2181 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2182 .name = "",
2183 .info = mixer_ctl_feature_info,
2184 .get = mixer_ctl_procunit_get,
2185 .put = mixer_ctl_procunit_put,
2186};
2187
2188
2189
2190
2191struct procunit_value_info {
2192 int control;
2193 char *suffix;
2194 int val_type;
2195 int min_value;
2196};
2197
2198struct procunit_info {
2199 int type;
2200 char *name;
2201 struct procunit_value_info *values;
2202};
2203
2204static struct procunit_value_info undefined_proc_info[] = {
2205 { 0x00, "Control Undefined", 0 },
2206 { 0 }
2207};
2208
2209static struct procunit_value_info updown_proc_info[] = {
2210 { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2211 { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
2212 { 0 }
2213};
2214static struct procunit_value_info prologic_proc_info[] = {
2215 { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2216 { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
2217 { 0 }
2218};
2219static struct procunit_value_info threed_enh_proc_info[] = {
2220 { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2221 { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 },
2222 { 0 }
2223};
2224static struct procunit_value_info reverb_proc_info[] = {
2225 { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2226 { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 },
2227 { UAC_REVERB_TIME, "Time", USB_MIXER_U16 },
2228 { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 },
2229 { 0 }
2230};
2231static struct procunit_value_info chorus_proc_info[] = {
2232 { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2233 { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 },
2234 { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 },
2235 { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 },
2236 { 0 }
2237};
2238static struct procunit_value_info dcr_proc_info[] = {
2239 { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2240 { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 },
2241 { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 },
2242 { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 },
2243 { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 },
2244 { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 },
2245 { 0 }
2246};
2247
2248static struct procunit_info procunits[] = {
2249 { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info },
2250 { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info },
2251 { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info },
2252 { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info },
2253 { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info },
2254 { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info },
2255 { 0 },
2256};
2257
2258static struct procunit_value_info uac3_updown_proc_info[] = {
2259 { UAC3_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
2260 { 0 }
2261};
2262static struct procunit_value_info uac3_stereo_ext_proc_info[] = {
2263 { UAC3_EXT_WIDTH_CONTROL, "Width Control", USB_MIXER_U8 },
2264 { 0 }
2265};
2266
2267static struct procunit_info uac3_procunits[] = {
2268 { UAC3_PROCESS_UP_DOWNMIX, "Up Down", uac3_updown_proc_info },
2269 { UAC3_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", uac3_stereo_ext_proc_info },
2270 { UAC3_PROCESS_MULTI_FUNCTION, "Multi-Function", undefined_proc_info },
2271 { 0 },
2272};
2273
2274
2275
2276
2277static struct procunit_value_info clock_rate_xu_info[] = {
2278 { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 },
2279 { 0 }
2280};
2281static struct procunit_value_info clock_source_xu_info[] = {
2282 { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN },
2283 { 0 }
2284};
2285static struct procunit_value_info spdif_format_xu_info[] = {
2286 { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN },
2287 { 0 }
2288};
2289static struct procunit_value_info soft_limit_xu_info[] = {
2290 { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN },
2291 { 0 }
2292};
2293static struct procunit_info extunits[] = {
2294 { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info },
2295 { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info },
2296 { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info },
2297 { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info },
2298 { 0 }
2299};
2300
2301
2302
2303
2304static int build_audio_procunit(struct mixer_build *state, int unitid,
2305 void *raw_desc, struct procunit_info *list,
2306 char *name)
2307{
2308 struct uac_processing_unit_descriptor *desc = raw_desc;
2309 int num_ins;
2310 struct usb_mixer_elem_info *cval;
2311 struct snd_kcontrol *kctl;
2312 int i, err, nameid, type, len;
2313 struct procunit_info *info;
2314 struct procunit_value_info *valinfo;
2315 const struct usbmix_name_map *map;
2316 static struct procunit_value_info default_value_info[] = {
2317 { 0x01, "Switch", USB_MIXER_BOOLEAN },
2318 { 0 }
2319 };
2320 static struct procunit_info default_info = {
2321 0, NULL, default_value_info
2322 };
2323
2324 if (desc->bLength < 13) {
2325 usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid);
2326 return -EINVAL;
2327 }
2328
2329 num_ins = desc->bNrInPins;
2330 if (desc->bLength < 13 + num_ins ||
2331 desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) {
2332 usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid);
2333 return -EINVAL;
2334 }
2335
2336 for (i = 0; i < num_ins; i++) {
2337 err = parse_audio_unit(state, desc->baSourceID[i]);
2338 if (err < 0)
2339 return err;
2340 }
2341
2342 type = le16_to_cpu(desc->wProcessType);
2343 for (info = list; info && info->type; info++)
2344 if (info->type == type)
2345 break;
2346 if (!info || !info->type)
2347 info = &default_info;
2348
2349 for (valinfo = info->values; valinfo->control; valinfo++) {
2350 __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol);
2351
2352 if (state->mixer->protocol == UAC_VERSION_1) {
2353 if (!(controls[valinfo->control / 8] &
2354 (1 << ((valinfo->control % 8) - 1))))
2355 continue;
2356 } else {
2357 if (!uac_v2v3_control_is_readable(controls[valinfo->control / 8],
2358 valinfo->control))
2359 continue;
2360 }
2361
2362 map = find_map(state->map, unitid, valinfo->control);
2363 if (check_ignored_ctl(map))
2364 continue;
2365 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
2366 if (!cval)
2367 return -ENOMEM;
2368 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid);
2369 cval->control = valinfo->control;
2370 cval->val_type = valinfo->val_type;
2371 cval->channels = 1;
2372
2373 if (state->mixer->protocol > UAC_VERSION_1 &&
2374 !uac_v2v3_control_is_writeable(controls[valinfo->control / 8],
2375 valinfo->control))
2376 cval->master_readonly = 1;
2377
2378
2379 switch (type) {
2380 case UAC_PROCESS_UP_DOWNMIX: {
2381 bool mode_sel = false;
2382
2383 switch (state->mixer->protocol) {
2384 case UAC_VERSION_1:
2385 case UAC_VERSION_2:
2386 default:
2387 if (cval->control == UAC_UD_MODE_SELECT)
2388 mode_sel = true;
2389 break;
2390 case UAC_VERSION_3:
2391 if (cval->control == UAC3_UD_MODE_SELECT)
2392 mode_sel = true;
2393 break;
2394 }
2395
2396 if (mode_sel) {
2397 __u8 *control_spec = uac_processing_unit_specific(desc,
2398 state->mixer->protocol);
2399 cval->min = 1;
2400 cval->max = control_spec[0];
2401 cval->res = 1;
2402 cval->initialized = 1;
2403 break;
2404 }
2405
2406 get_min_max(cval, valinfo->min_value);
2407 break;
2408 }
2409 case USB_XU_CLOCK_RATE:
2410
2411
2412
2413
2414 cval->min = 0;
2415 cval->max = 5;
2416 cval->res = 1;
2417 cval->initialized = 1;
2418 break;
2419 default:
2420 get_min_max(cval, valinfo->min_value);
2421 break;
2422 }
2423
2424 kctl = snd_ctl_new1(&mixer_procunit_ctl, cval);
2425 if (!kctl) {
2426 kfree(cval);
2427 return -ENOMEM;
2428 }
2429 kctl->private_free = snd_usb_mixer_elem_free;
2430
2431 if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) {
2432 ;
2433 } else if (info->name) {
2434 strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name));
2435 } else {
2436 nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol);
2437 len = 0;
2438 if (nameid)
2439 len = snd_usb_copy_string_desc(state->chip,
2440 nameid,
2441 kctl->id.name,
2442 sizeof(kctl->id.name));
2443 if (!len)
2444 strlcpy(kctl->id.name, name, sizeof(kctl->id.name));
2445 }
2446 append_ctl_name(kctl, " ");
2447 append_ctl_name(kctl, valinfo->suffix);
2448
2449 usb_audio_dbg(state->chip,
2450 "[%d] PU [%s] ch = %d, val = %d/%d\n",
2451 cval->head.id, kctl->id.name, cval->channels,
2452 cval->min, cval->max);
2453
2454 err = snd_usb_mixer_add_control(&cval->head, kctl);
2455 if (err < 0)
2456 return err;
2457 }
2458 return 0;
2459}
2460
2461static int parse_audio_processing_unit(struct mixer_build *state, int unitid,
2462 void *raw_desc)
2463{
2464 switch (state->mixer->protocol) {
2465 case UAC_VERSION_1:
2466 case UAC_VERSION_2:
2467 default:
2468 return build_audio_procunit(state, unitid, raw_desc,
2469 procunits, "Processing Unit");
2470 case UAC_VERSION_3:
2471 return build_audio_procunit(state, unitid, raw_desc,
2472 uac3_procunits, "Processing Unit");
2473 }
2474}
2475
2476static int parse_audio_extension_unit(struct mixer_build *state, int unitid,
2477 void *raw_desc)
2478{
2479
2480
2481
2482
2483 return build_audio_procunit(state, unitid, raw_desc,
2484 extunits, "Extension Unit");
2485}
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol,
2496 struct snd_ctl_elem_info *uinfo)
2497{
2498 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2499 const char **itemlist = (const char **)kcontrol->private_value;
2500
2501 if (snd_BUG_ON(!itemlist))
2502 return -EINVAL;
2503 return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist);
2504}
2505
2506
2507static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol,
2508 struct snd_ctl_elem_value *ucontrol)
2509{
2510 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2511 int val, err;
2512
2513 err = get_cur_ctl_value(cval, cval->control << 8, &val);
2514 if (err < 0) {
2515 ucontrol->value.enumerated.item[0] = 0;
2516 return filter_error(cval, err);
2517 }
2518 val = get_relative_value(cval, val);
2519 ucontrol->value.enumerated.item[0] = val;
2520 return 0;
2521}
2522
2523
2524static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol,
2525 struct snd_ctl_elem_value *ucontrol)
2526{
2527 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2528 int val, oval, err;
2529
2530 err = get_cur_ctl_value(cval, cval->control << 8, &oval);
2531 if (err < 0)
2532 return filter_error(cval, err);
2533 val = ucontrol->value.enumerated.item[0];
2534 val = get_abs_value(cval, val);
2535 if (val != oval) {
2536 set_cur_ctl_value(cval, cval->control << 8, val);
2537 return 1;
2538 }
2539 return 0;
2540}
2541
2542
2543static const struct snd_kcontrol_new mixer_selectunit_ctl = {
2544 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2545 .name = "",
2546 .info = mixer_ctl_selector_info,
2547 .get = mixer_ctl_selector_get,
2548 .put = mixer_ctl_selector_put,
2549};
2550
2551
2552
2553
2554
2555static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl)
2556{
2557 int i, num_ins = 0;
2558
2559 if (kctl->private_data) {
2560 struct usb_mixer_elem_info *cval = kctl->private_data;
2561 num_ins = cval->max;
2562 kfree(cval);
2563 kctl->private_data = NULL;
2564 }
2565 if (kctl->private_value) {
2566 char **itemlist = (char **)kctl->private_value;
2567 for (i = 0; i < num_ins; i++)
2568 kfree(itemlist[i]);
2569 kfree(itemlist);
2570 kctl->private_value = 0;
2571 }
2572}
2573
2574
2575
2576
2577static int parse_audio_selector_unit(struct mixer_build *state, int unitid,
2578 void *raw_desc)
2579{
2580 struct uac_selector_unit_descriptor *desc = raw_desc;
2581 unsigned int i, nameid, len;
2582 int err;
2583 struct usb_mixer_elem_info *cval;
2584 struct snd_kcontrol *kctl;
2585 const struct usbmix_name_map *map;
2586 char **namelist;
2587
2588 if (desc->bLength < 5 || !desc->bNrInPins ||
2589 desc->bLength < 5 + desc->bNrInPins) {
2590 usb_audio_err(state->chip,
2591 "invalid SELECTOR UNIT descriptor %d\n", unitid);
2592 return -EINVAL;
2593 }
2594
2595 for (i = 0; i < desc->bNrInPins; i++) {
2596 err = parse_audio_unit(state, desc->baSourceID[i]);
2597 if (err < 0)
2598 return err;
2599 }
2600
2601 if (desc->bNrInPins == 1)
2602 return 0;
2603
2604 map = find_map(state->map, unitid, 0);
2605 if (check_ignored_ctl(map))
2606 return 0;
2607
2608 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
2609 if (!cval)
2610 return -ENOMEM;
2611 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid);
2612 cval->val_type = USB_MIXER_U8;
2613 cval->channels = 1;
2614 cval->min = 1;
2615 cval->max = desc->bNrInPins;
2616 cval->res = 1;
2617 cval->initialized = 1;
2618
2619 switch (state->mixer->protocol) {
2620 case UAC_VERSION_1:
2621 default:
2622 cval->control = 0;
2623 break;
2624 case UAC_VERSION_2:
2625 case UAC_VERSION_3:
2626 if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR ||
2627 desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR)
2628 cval->control = UAC2_CX_CLOCK_SELECTOR;
2629 else
2630 cval->control = UAC2_SU_SELECTOR;
2631 break;
2632 }
2633
2634 namelist = kmalloc_array(desc->bNrInPins, sizeof(char *), GFP_KERNEL);
2635 if (!namelist) {
2636 kfree(cval);
2637 return -ENOMEM;
2638 }
2639#define MAX_ITEM_NAME_LEN 64
2640 for (i = 0; i < desc->bNrInPins; i++) {
2641 struct usb_audio_term iterm;
2642 len = 0;
2643 namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL);
2644 if (!namelist[i]) {
2645 while (i--)
2646 kfree(namelist[i]);
2647 kfree(namelist);
2648 kfree(cval);
2649 return -ENOMEM;
2650 }
2651 len = check_mapped_selector_name(state, unitid, i, namelist[i],
2652 MAX_ITEM_NAME_LEN);
2653 if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0)
2654 len = get_term_name(state->chip, &iterm, namelist[i],
2655 MAX_ITEM_NAME_LEN, 0);
2656 if (! len)
2657 sprintf(namelist[i], "Input %u", i);
2658 }
2659
2660 kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval);
2661 if (! kctl) {
2662 usb_audio_err(state->chip, "cannot malloc kcontrol\n");
2663 for (i = 0; i < desc->bNrInPins; i++)
2664 kfree(namelist[i]);
2665 kfree(namelist);
2666 kfree(cval);
2667 return -ENOMEM;
2668 }
2669 kctl->private_value = (unsigned long)namelist;
2670 kctl->private_free = usb_mixer_selector_elem_free;
2671
2672
2673 len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
2674 if (!len) {
2675
2676 switch (state->mixer->protocol) {
2677 case UAC_VERSION_1:
2678 case UAC_VERSION_2:
2679 default:
2680
2681 nameid = uac_selector_unit_iSelector(desc);
2682 if (nameid)
2683 len = snd_usb_copy_string_desc(state->chip,
2684 nameid, kctl->id.name,
2685 sizeof(kctl->id.name));
2686 break;
2687 case UAC_VERSION_3:
2688
2689 break;
2690 }
2691
2692
2693 if (!len)
2694 len = get_term_name(state->chip, &state->oterm,
2695 kctl->id.name, sizeof(kctl->id.name), 0);
2696
2697 if (!len)
2698 strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name));
2699
2700
2701 if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR ||
2702 desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR)
2703 append_ctl_name(kctl, " Clock Source");
2704 else if ((state->oterm.type & 0xff00) == 0x0100)
2705 append_ctl_name(kctl, " Capture Source");
2706 else
2707 append_ctl_name(kctl, " Playback Source");
2708 }
2709
2710 usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n",
2711 cval->head.id, kctl->id.name, desc->bNrInPins);
2712 return snd_usb_mixer_add_control(&cval->head, kctl);
2713}
2714
2715
2716
2717
2718
2719static int parse_audio_unit(struct mixer_build *state, int unitid)
2720{
2721 unsigned char *p1;
2722 int protocol = state->mixer->protocol;
2723
2724 if (test_and_set_bit(unitid, state->unitbitmap))
2725 return 0;
2726
2727 p1 = find_audio_control_unit(state, unitid);
2728 if (!p1) {
2729 usb_audio_err(state->chip, "unit %d not found!\n", unitid);
2730 return -EINVAL;
2731 }
2732
2733 if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) {
2734 switch (p1[2]) {
2735 case UAC_INPUT_TERMINAL:
2736 return parse_audio_input_terminal(state, unitid, p1);
2737 case UAC_MIXER_UNIT:
2738 return parse_audio_mixer_unit(state, unitid, p1);
2739 case UAC2_CLOCK_SOURCE:
2740 return parse_clock_source_unit(state, unitid, p1);
2741 case UAC_SELECTOR_UNIT:
2742 case UAC2_CLOCK_SELECTOR:
2743 return parse_audio_selector_unit(state, unitid, p1);
2744 case UAC_FEATURE_UNIT:
2745 return parse_audio_feature_unit(state, unitid, p1);
2746 case UAC1_PROCESSING_UNIT:
2747
2748 if (protocol == UAC_VERSION_1)
2749 return parse_audio_processing_unit(state, unitid, p1);
2750 else
2751 return 0;
2752 case UAC1_EXTENSION_UNIT:
2753
2754 if (protocol == UAC_VERSION_1)
2755 return parse_audio_extension_unit(state, unitid, p1);
2756 else
2757 return parse_audio_processing_unit(state, unitid, p1);
2758 case UAC2_EXTENSION_UNIT_V2:
2759 return parse_audio_extension_unit(state, unitid, p1);
2760 default:
2761 usb_audio_err(state->chip,
2762 "unit %u: unexpected type 0x%02x\n", unitid, p1[2]);
2763 return -EINVAL;
2764 }
2765 } else {
2766 switch (p1[2]) {
2767 case UAC_INPUT_TERMINAL:
2768 return parse_audio_input_terminal(state, unitid, p1);
2769 case UAC3_MIXER_UNIT:
2770 return parse_audio_mixer_unit(state, unitid, p1);
2771 case UAC3_CLOCK_SOURCE:
2772 return parse_clock_source_unit(state, unitid, p1);
2773 case UAC3_SELECTOR_UNIT:
2774 case UAC3_CLOCK_SELECTOR:
2775 return parse_audio_selector_unit(state, unitid, p1);
2776 case UAC3_FEATURE_UNIT:
2777 return parse_audio_feature_unit(state, unitid, p1);
2778 case UAC3_EFFECT_UNIT:
2779 return 0;
2780 case UAC3_PROCESSING_UNIT:
2781 return parse_audio_processing_unit(state, unitid, p1);
2782 case UAC3_EXTENSION_UNIT:
2783 return parse_audio_extension_unit(state, unitid, p1);
2784 default:
2785 usb_audio_err(state->chip,
2786 "unit %u: unexpected type 0x%02x\n", unitid, p1[2]);
2787 return -EINVAL;
2788 }
2789 }
2790}
2791
2792static void snd_usb_mixer_free(struct usb_mixer_interface *mixer)
2793{
2794
2795 snd_usb_mixer_disconnect(mixer);
2796
2797 kfree(mixer->id_elems);
2798 if (mixer->urb) {
2799 kfree(mixer->urb->transfer_buffer);
2800 usb_free_urb(mixer->urb);
2801 }
2802 usb_free_urb(mixer->rc_urb);
2803 kfree(mixer->rc_setup_packet);
2804 kfree(mixer);
2805}
2806
2807static int snd_usb_mixer_dev_free(struct snd_device *device)
2808{
2809 struct usb_mixer_interface *mixer = device->device_data;
2810 snd_usb_mixer_free(mixer);
2811 return 0;
2812}
2813
2814
2815struct uac3_badd_profile {
2816 int subclass;
2817 const char *name;
2818 int c_chmask;
2819 int p_chmask;
2820 int st_chmask;
2821};
2822
2823static struct uac3_badd_profile uac3_badd_profiles[] = {
2824 {
2825
2826
2827
2828
2829
2830 .subclass = UAC3_FUNCTION_SUBCLASS_GENERIC_IO,
2831 .name = "GENERIC IO",
2832 .c_chmask = -1,
2833 .p_chmask = -1,
2834 },
2835 {
2836
2837 .subclass = UAC3_FUNCTION_SUBCLASS_HEADPHONE,
2838 .name = "HEADPHONE",
2839 .p_chmask = 3,
2840 },
2841 {
2842
2843 .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKER,
2844 .name = "SPEAKER",
2845 .p_chmask = -1,
2846 },
2847 {
2848
2849 .subclass = UAC3_FUNCTION_SUBCLASS_MICROPHONE,
2850 .name = "MICROPHONE",
2851 .c_chmask = -1,
2852 },
2853 {
2854
2855
2856
2857
2858
2859 .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET,
2860 .name = "HEADSET",
2861 .c_chmask = 1,
2862 .p_chmask = -1,
2863 .st_chmask = 1,
2864 },
2865 {
2866
2867 .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER,
2868 .name = "HEADSET ADAPTER",
2869 .c_chmask = 1,
2870 .p_chmask = 3,
2871 .st_chmask = 1,
2872 },
2873 {
2874
2875 .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE,
2876 .name = "SPEAKERPHONE",
2877 .c_chmask = 1,
2878 .p_chmask = 1,
2879 },
2880 { 0 }
2881};
2882
2883static bool uac3_badd_func_has_valid_channels(struct usb_mixer_interface *mixer,
2884 struct uac3_badd_profile *f,
2885 int c_chmask, int p_chmask)
2886{
2887
2888
2889
2890
2891 if (f->c_chmask < 0 && f->p_chmask < 0) {
2892 if (!c_chmask && !p_chmask) {
2893 usb_audio_warn(mixer->chip, "BAAD %s: no channels?",
2894 f->name);
2895 return false;
2896 }
2897 return true;
2898 }
2899
2900 if ((f->c_chmask < 0 && !c_chmask) ||
2901 (f->c_chmask >= 0 && f->c_chmask != c_chmask)) {
2902 usb_audio_warn(mixer->chip, "BAAD %s c_chmask mismatch",
2903 f->name);
2904 return false;
2905 }
2906 if ((f->p_chmask < 0 && !p_chmask) ||
2907 (f->p_chmask >= 0 && f->p_chmask != p_chmask)) {
2908 usb_audio_warn(mixer->chip, "BAAD %s p_chmask mismatch",
2909 f->name);
2910 return false;
2911 }
2912 return true;
2913}
2914
2915
2916
2917
2918
2919
2920
2921
2922static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer,
2923 int ctrlif)
2924{
2925 struct usb_device *dev = mixer->chip->dev;
2926 struct usb_interface_assoc_descriptor *assoc;
2927 int badd_profile = mixer->chip->badd_profile;
2928 struct uac3_badd_profile *f;
2929 const struct usbmix_ctl_map *map;
2930 int p_chmask = 0, c_chmask = 0, st_chmask = 0;
2931 int i;
2932
2933 assoc = usb_ifnum_to_if(dev, ctrlif)->intf_assoc;
2934
2935
2936 for (i = 0; i < assoc->bInterfaceCount; i++) {
2937 int intf = assoc->bFirstInterface + i;
2938
2939 struct usb_interface *iface;
2940 struct usb_host_interface *alts;
2941 struct usb_interface_descriptor *altsd;
2942 unsigned int maxpacksize;
2943 char dir_in;
2944 int chmask, num;
2945
2946 if (intf == ctrlif)
2947 continue;
2948
2949 iface = usb_ifnum_to_if(dev, intf);
2950 num = iface->num_altsetting;
2951
2952 if (num < 2)
2953 return -EINVAL;
2954
2955
2956
2957
2958
2959
2960
2961
2962 alts = &iface->altsetting[1];
2963 altsd = get_iface_desc(alts);
2964
2965 if (altsd->bNumEndpoints < 1)
2966 return -EINVAL;
2967
2968
2969 dir_in = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN);
2970 maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
2971
2972 switch (maxpacksize) {
2973 default:
2974 usb_audio_err(mixer->chip,
2975 "incorrect wMaxPacketSize 0x%x for BADD profile\n",
2976 maxpacksize);
2977 return -EINVAL;
2978 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16:
2979 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16:
2980 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24:
2981 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24:
2982 chmask = 1;
2983 break;
2984 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16:
2985 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16:
2986 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24:
2987 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24:
2988 chmask = 3;
2989 break;
2990 }
2991
2992 if (dir_in)
2993 c_chmask = chmask;
2994 else
2995 p_chmask = chmask;
2996 }
2997
2998 usb_audio_dbg(mixer->chip,
2999 "UAC3 BADD profile 0x%x: detected c_chmask=%d p_chmask=%d\n",
3000 badd_profile, c_chmask, p_chmask);
3001
3002
3003 for (map = uac3_badd_usbmix_ctl_maps; map->id; map++) {
3004 if (map->id == badd_profile)
3005 break;
3006 }
3007
3008 if (!map->id)
3009 return -EINVAL;
3010
3011 for (f = uac3_badd_profiles; f->name; f++) {
3012 if (badd_profile == f->subclass)
3013 break;
3014 }
3015 if (!f->name)
3016 return -EINVAL;
3017 if (!uac3_badd_func_has_valid_channels(mixer, f, c_chmask, p_chmask))
3018 return -EINVAL;
3019 st_chmask = f->st_chmask;
3020
3021
3022 if (p_chmask) {
3023
3024 build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE,
3025 UAC3_BADD_FU_ID2, map->map);
3026
3027 build_feature_ctl_badd(mixer, p_chmask, UAC_FU_VOLUME,
3028 UAC3_BADD_FU_ID2, map->map);
3029 }
3030
3031
3032 if (c_chmask) {
3033
3034 build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE,
3035 UAC3_BADD_FU_ID5, map->map);
3036
3037 build_feature_ctl_badd(mixer, c_chmask, UAC_FU_VOLUME,
3038 UAC3_BADD_FU_ID5, map->map);
3039 }
3040
3041
3042 if (st_chmask) {
3043
3044 build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE,
3045 UAC3_BADD_FU_ID7, map->map);
3046
3047 build_feature_ctl_badd(mixer, 1, UAC_FU_VOLUME,
3048 UAC3_BADD_FU_ID7, map->map);
3049 }
3050
3051
3052 if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) {
3053 struct usb_audio_term iterm, oterm;
3054
3055
3056 memset(&iterm, 0, sizeof(iterm));
3057 iterm.id = UAC3_BADD_IT_ID4;
3058 iterm.type = UAC_BIDIR_TERMINAL_HEADSET;
3059 build_connector_control(mixer, &iterm, true);
3060
3061
3062 memset(&oterm, 0, sizeof(oterm));
3063 oterm.id = UAC3_BADD_OT_ID3;
3064 oterm.type = UAC_BIDIR_TERMINAL_HEADSET;
3065 build_connector_control(mixer, &oterm, false);
3066 }
3067
3068 return 0;
3069}
3070
3071
3072
3073
3074
3075
3076static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
3077{
3078 struct mixer_build state;
3079 int err;
3080 const struct usbmix_ctl_map *map;
3081 void *p;
3082
3083 memset(&state, 0, sizeof(state));
3084 state.chip = mixer->chip;
3085 state.mixer = mixer;
3086 state.buffer = mixer->hostif->extra;
3087 state.buflen = mixer->hostif->extralen;
3088
3089
3090 for (map = usbmix_ctl_maps; map->id; map++) {
3091 if (map->id == state.chip->usb_id) {
3092 state.map = map->map;
3093 state.selector_map = map->selector_map;
3094 mixer->ignore_ctl_error = map->ignore_ctl_error;
3095 break;
3096 }
3097 }
3098
3099 p = NULL;
3100 while ((p = snd_usb_find_csint_desc(mixer->hostif->extra,
3101 mixer->hostif->extralen,
3102 p, UAC_OUTPUT_TERMINAL)) != NULL) {
3103 if (mixer->protocol == UAC_VERSION_1) {
3104 struct uac1_output_terminal_descriptor *desc = p;
3105
3106 if (desc->bLength < sizeof(*desc))
3107 continue;
3108
3109 set_bit(desc->bTerminalID, state.unitbitmap);
3110 state.oterm.id = desc->bTerminalID;
3111 state.oterm.type = le16_to_cpu(desc->wTerminalType);
3112 state.oterm.name = desc->iTerminal;
3113 err = parse_audio_unit(&state, desc->bSourceID);
3114 if (err < 0 && err != -EINVAL)
3115 return err;
3116 } else if (mixer->protocol == UAC_VERSION_2) {
3117 struct uac2_output_terminal_descriptor *desc = p;
3118
3119 if (desc->bLength < sizeof(*desc))
3120 continue;
3121
3122 set_bit(desc->bTerminalID, state.unitbitmap);
3123 state.oterm.id = desc->bTerminalID;
3124 state.oterm.type = le16_to_cpu(desc->wTerminalType);
3125 state.oterm.name = desc->iTerminal;
3126 err = parse_audio_unit(&state, desc->bSourceID);
3127 if (err < 0 && err != -EINVAL)
3128 return err;
3129
3130
3131
3132
3133
3134 err = parse_audio_unit(&state, desc->bCSourceID);
3135 if (err < 0 && err != -EINVAL)
3136 return err;
3137
3138 if (uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls),
3139 UAC2_TE_CONNECTOR)) {
3140 build_connector_control(state.mixer, &state.oterm,
3141 false);
3142 }
3143 } else {
3144 struct uac3_output_terminal_descriptor *desc = p;
3145
3146 if (desc->bLength < sizeof(*desc))
3147 continue;
3148
3149 set_bit(desc->bTerminalID, state.unitbitmap);
3150 state.oterm.id = desc->bTerminalID;
3151 state.oterm.type = le16_to_cpu(desc->wTerminalType);
3152 state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr);
3153 err = parse_audio_unit(&state, desc->bSourceID);
3154 if (err < 0 && err != -EINVAL)
3155 return err;
3156
3157
3158
3159
3160
3161 err = parse_audio_unit(&state, desc->bCSourceID);
3162 if (err < 0 && err != -EINVAL)
3163 return err;
3164
3165 if (uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls),
3166 UAC3_TE_INSERTION)) {
3167 build_connector_control(state.mixer, &state.oterm,
3168 false);
3169 }
3170 }
3171 }
3172
3173 return 0;
3174}
3175
3176void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid)
3177{
3178 struct usb_mixer_elem_list *list;
3179
3180 for_each_mixer_elem(list, mixer, unitid) {
3181 struct usb_mixer_elem_info *info =
3182 mixer_elem_list_to_info(list);
3183
3184 info->cached = 0;
3185 snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3186 &list->kctl->id);
3187 }
3188}
3189
3190static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer,
3191 struct usb_mixer_elem_list *list)
3192{
3193 struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
3194 static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN",
3195 "S8", "U8", "S16", "U16"};
3196 snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, "
3197 "channels=%i, type=\"%s\"\n", cval->head.id,
3198 cval->control, cval->cmask, cval->channels,
3199 val_types[cval->val_type]);
3200 snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n",
3201 cval->min, cval->max, cval->dBmin, cval->dBmax);
3202}
3203
3204static void snd_usb_mixer_proc_read(struct snd_info_entry *entry,
3205 struct snd_info_buffer *buffer)
3206{
3207 struct snd_usb_audio *chip = entry->private_data;
3208 struct usb_mixer_interface *mixer;
3209 struct usb_mixer_elem_list *list;
3210 int unitid;
3211
3212 list_for_each_entry(mixer, &chip->mixer_list, list) {
3213 snd_iprintf(buffer,
3214 "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n",
3215 chip->usb_id, snd_usb_ctrl_intf(chip),
3216 mixer->ignore_ctl_error);
3217 snd_iprintf(buffer, "Card: %s\n", chip->card->longname);
3218 for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) {
3219 for_each_mixer_elem(list, mixer, unitid) {
3220 snd_iprintf(buffer, " Unit: %i\n", list->id);
3221 if (list->kctl)
3222 snd_iprintf(buffer,
3223 " Control: name=\"%s\", index=%i\n",
3224 list->kctl->id.name,
3225 list->kctl->id.index);
3226 if (list->dump)
3227 list->dump(buffer, list);
3228 }
3229 }
3230 }
3231}
3232
3233static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer,
3234 int attribute, int value, int index)
3235{
3236 struct usb_mixer_elem_list *list;
3237 __u8 unitid = (index >> 8) & 0xff;
3238 __u8 control = (value >> 8) & 0xff;
3239 __u8 channel = value & 0xff;
3240 unsigned int count = 0;
3241
3242 if (channel >= MAX_CHANNELS) {
3243 usb_audio_dbg(mixer->chip,
3244 "%s(): bogus channel number %d\n",
3245 __func__, channel);
3246 return;
3247 }
3248
3249 for_each_mixer_elem(list, mixer, unitid)
3250 count++;
3251
3252 if (count == 0)
3253 return;
3254
3255 for_each_mixer_elem(list, mixer, unitid) {
3256 struct usb_mixer_elem_info *info;
3257
3258 if (!list->kctl)
3259 continue;
3260
3261 info = mixer_elem_list_to_info(list);
3262 if (count > 1 && info->control != control)
3263 continue;
3264
3265 switch (attribute) {
3266 case UAC2_CS_CUR:
3267
3268 if (channel)
3269 info->cached &= ~(1 << channel);
3270 else
3271 info->cached = 0;
3272
3273 snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3274 &info->head.kctl->id);
3275 break;
3276
3277 case UAC2_CS_RANGE:
3278
3279 break;
3280
3281 case UAC2_CS_MEM:
3282
3283 break;
3284
3285 default:
3286 usb_audio_dbg(mixer->chip,
3287 "unknown attribute %d in interrupt\n",
3288 attribute);
3289 break;
3290 }
3291 }
3292}
3293
3294static void snd_usb_mixer_interrupt(struct urb *urb)
3295{
3296 struct usb_mixer_interface *mixer = urb->context;
3297 int len = urb->actual_length;
3298 int ustatus = urb->status;
3299
3300 if (ustatus != 0)
3301 goto requeue;
3302
3303 if (mixer->protocol == UAC_VERSION_1) {
3304 struct uac1_status_word *status;
3305
3306 for (status = urb->transfer_buffer;
3307 len >= sizeof(*status);
3308 len -= sizeof(*status), status++) {
3309 dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n",
3310 status->bStatusType,
3311 status->bOriginator);
3312
3313
3314 if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) !=
3315 UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF)
3316 continue;
3317
3318 if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED)
3319 snd_usb_mixer_rc_memory_change(mixer, status->bOriginator);
3320 else
3321 snd_usb_mixer_notify_id(mixer, status->bOriginator);
3322 }
3323 } else {
3324 struct uac2_interrupt_data_msg *msg;
3325
3326 for (msg = urb->transfer_buffer;
3327 len >= sizeof(*msg);
3328 len -= sizeof(*msg), msg++) {
3329
3330 if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) ||
3331 (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP))
3332 continue;
3333
3334 snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute,
3335 le16_to_cpu(msg->wValue),
3336 le16_to_cpu(msg->wIndex));
3337 }
3338 }
3339
3340requeue:
3341 if (ustatus != -ENOENT &&
3342 ustatus != -ECONNRESET &&
3343 ustatus != -ESHUTDOWN) {
3344 urb->dev = mixer->chip->dev;
3345 usb_submit_urb(urb, GFP_ATOMIC);
3346 }
3347}
3348
3349
3350static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer)
3351{
3352 struct usb_endpoint_descriptor *ep;
3353 void *transfer_buffer;
3354 int buffer_length;
3355 unsigned int epnum;
3356
3357
3358 if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1)
3359 return 0;
3360 ep = get_endpoint(mixer->hostif, 0);
3361 if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep))
3362 return 0;
3363
3364 epnum = usb_endpoint_num(ep);
3365 buffer_length = le16_to_cpu(ep->wMaxPacketSize);
3366 transfer_buffer = kmalloc(buffer_length, GFP_KERNEL);
3367 if (!transfer_buffer)
3368 return -ENOMEM;
3369 mixer->urb = usb_alloc_urb(0, GFP_KERNEL);
3370 if (!mixer->urb) {
3371 kfree(transfer_buffer);
3372 return -ENOMEM;
3373 }
3374 usb_fill_int_urb(mixer->urb, mixer->chip->dev,
3375 usb_rcvintpipe(mixer->chip->dev, epnum),
3376 transfer_buffer, buffer_length,
3377 snd_usb_mixer_interrupt, mixer, ep->bInterval);
3378 usb_submit_urb(mixer->urb, GFP_KERNEL);
3379 return 0;
3380}
3381
3382static int keep_iface_ctl_get(struct snd_kcontrol *kcontrol,
3383 struct snd_ctl_elem_value *ucontrol)
3384{
3385 struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
3386
3387 ucontrol->value.integer.value[0] = mixer->chip->keep_iface;
3388 return 0;
3389}
3390
3391static int keep_iface_ctl_put(struct snd_kcontrol *kcontrol,
3392 struct snd_ctl_elem_value *ucontrol)
3393{
3394 struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
3395 bool keep_iface = !!ucontrol->value.integer.value[0];
3396
3397 if (mixer->chip->keep_iface == keep_iface)
3398 return 0;
3399 mixer->chip->keep_iface = keep_iface;
3400 return 1;
3401}
3402
3403static const struct snd_kcontrol_new keep_iface_ctl = {
3404 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
3405 .name = "Keep Interface",
3406 .info = snd_ctl_boolean_mono_info,
3407 .get = keep_iface_ctl_get,
3408 .put = keep_iface_ctl_put,
3409};
3410
3411static int create_keep_iface_ctl(struct usb_mixer_interface *mixer)
3412{
3413 struct snd_kcontrol *kctl = snd_ctl_new1(&keep_iface_ctl, mixer);
3414
3415
3416 if (snd_ctl_find_id(mixer->chip->card, &kctl->id)) {
3417 snd_ctl_free_one(kctl);
3418 return 0;
3419 }
3420
3421 return snd_ctl_add(mixer->chip->card, kctl);
3422}
3423
3424int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
3425 int ignore_error)
3426{
3427 static struct snd_device_ops dev_ops = {
3428 .dev_free = snd_usb_mixer_dev_free
3429 };
3430 struct usb_mixer_interface *mixer;
3431 int err;
3432
3433 strcpy(chip->card->mixername, "USB Mixer");
3434
3435 mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
3436 if (!mixer)
3437 return -ENOMEM;
3438 mixer->chip = chip;
3439 mixer->ignore_ctl_error = ignore_error;
3440 mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems),
3441 GFP_KERNEL);
3442 if (!mixer->id_elems) {
3443 kfree(mixer);
3444 return -ENOMEM;
3445 }
3446
3447 mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0];
3448 switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) {
3449 case UAC_VERSION_1:
3450 default:
3451 mixer->protocol = UAC_VERSION_1;
3452 break;
3453 case UAC_VERSION_2:
3454 mixer->protocol = UAC_VERSION_2;
3455 break;
3456 case UAC_VERSION_3:
3457 mixer->protocol = UAC_VERSION_3;
3458 break;
3459 }
3460
3461 if (mixer->protocol == UAC_VERSION_3 &&
3462 chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
3463 err = snd_usb_mixer_controls_badd(mixer, ctrlif);
3464 if (err < 0)
3465 goto _error;
3466 } else {
3467 err = snd_usb_mixer_controls(mixer);
3468 if (err < 0)
3469 goto _error;
3470 }
3471
3472 err = snd_usb_mixer_status_create(mixer);
3473 if (err < 0)
3474 goto _error;
3475
3476 err = create_keep_iface_ctl(mixer);
3477 if (err < 0)
3478 goto _error;
3479
3480 err = snd_usb_mixer_apply_create_quirk(mixer);
3481 if (err < 0)
3482 goto _error;
3483
3484 err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops);
3485 if (err < 0)
3486 goto _error;
3487
3488 if (list_empty(&chip->mixer_list))
3489 snd_card_ro_proc_new(chip->card, "usbmixer", chip,
3490 snd_usb_mixer_proc_read);
3491
3492 list_add(&mixer->list, &chip->mixer_list);
3493 return 0;
3494
3495_error:
3496 snd_usb_mixer_free(mixer);
3497 return err;
3498}
3499
3500void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer)
3501{
3502 if (mixer->disconnected)
3503 return;
3504 if (mixer->urb)
3505 usb_kill_urb(mixer->urb);
3506 if (mixer->rc_urb)
3507 usb_kill_urb(mixer->rc_urb);
3508 mixer->disconnected = true;
3509}
3510
3511#ifdef CONFIG_PM
3512
3513static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer)
3514{
3515 usb_kill_urb(mixer->urb);
3516 usb_kill_urb(mixer->rc_urb);
3517}
3518
3519static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer)
3520{
3521 int err;
3522
3523 if (mixer->urb) {
3524 err = usb_submit_urb(mixer->urb, GFP_NOIO);
3525 if (err < 0)
3526 return err;
3527 }
3528
3529 return 0;
3530}
3531
3532int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer)
3533{
3534 snd_usb_mixer_inactivate(mixer);
3535 return 0;
3536}
3537
3538static int restore_mixer_value(struct usb_mixer_elem_list *list)
3539{
3540 struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
3541 int c, err, idx;
3542
3543 if (cval->cmask) {
3544 idx = 0;
3545 for (c = 0; c < MAX_CHANNELS; c++) {
3546 if (!(cval->cmask & (1 << c)))
3547 continue;
3548 if (cval->cached & (1 << (c + 1))) {
3549 err = snd_usb_set_cur_mix_value(cval, c + 1, idx,
3550 cval->cache_val[idx]);
3551 if (err < 0)
3552 return err;
3553 }
3554 idx++;
3555 }
3556 } else {
3557
3558 if (cval->cached) {
3559 err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val);
3560 if (err < 0)
3561 return err;
3562 }
3563 }
3564
3565 return 0;
3566}
3567
3568int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume)
3569{
3570 struct usb_mixer_elem_list *list;
3571 int id, err;
3572
3573 if (reset_resume) {
3574
3575 for (id = 0; id < MAX_ID_ELEMS; id++) {
3576 for_each_mixer_elem(list, mixer, id) {
3577 if (list->resume) {
3578 err = list->resume(list);
3579 if (err < 0)
3580 return err;
3581 }
3582 }
3583 }
3584 }
3585
3586 snd_usb_mixer_resume_quirk(mixer);
3587
3588 return snd_usb_mixer_activate(mixer);
3589}
3590#endif
3591
3592void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
3593 struct usb_mixer_interface *mixer,
3594 int unitid)
3595{
3596 list->mixer = mixer;
3597 list->id = unitid;
3598 list->dump = snd_usb_mixer_dump_cval;
3599#ifdef CONFIG_PM
3600 list->resume = restore_mixer_value;
3601#endif
3602}
3603