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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 DECLARE_BITMAP(termbitmap, MAX_ID_ELEMS);
72 struct usb_audio_term oterm;
73 const struct usbmix_name_map *map;
74 const struct usbmix_selector_map *selector_map;
75};
76
77
78enum {
79 USB_XU_CLOCK_RATE = 0xe301,
80 USB_XU_CLOCK_SOURCE = 0xe302,
81 USB_XU_DIGITAL_IO_STATUS = 0xe303,
82 USB_XU_DEVICE_OPTIONS = 0xe304,
83 USB_XU_DIRECT_MONITORING = 0xe305,
84 USB_XU_METERING = 0xe306
85};
86enum {
87 USB_XU_CLOCK_SOURCE_SELECTOR = 0x02,
88 USB_XU_CLOCK_RATE_SELECTOR = 0x03,
89 USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01,
90 USB_XU_SOFT_LIMIT_SELECTOR = 0x03
91};
92
93
94
95
96
97
98#include "mixer_maps.c"
99
100static const struct usbmix_name_map *
101find_map(const struct usbmix_name_map *p, int unitid, int control)
102{
103 if (!p)
104 return NULL;
105
106 for (; p->id; p++) {
107 if (p->id == unitid &&
108 (!control || !p->control || control == p->control))
109 return p;
110 }
111 return NULL;
112}
113
114
115static int
116check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen)
117{
118 int len;
119
120 if (!p || !p->name)
121 return 0;
122
123 buflen--;
124 len = strscpy(buf, p->name, buflen);
125 return len < 0 ? buflen : len;
126}
127
128
129#define filter_error(cval, err) \
130 ((cval)->head.mixer->ignore_ctl_error ? 0 : (err))
131
132
133static inline int
134check_ignored_ctl(const struct usbmix_name_map *p)
135{
136 if (!p || p->name || p->dB)
137 return 0;
138 return 1;
139}
140
141
142static inline void check_mapped_dB(const struct usbmix_name_map *p,
143 struct usb_mixer_elem_info *cval)
144{
145 if (p && p->dB) {
146 cval->dBmin = p->dB->min;
147 cval->dBmax = p->dB->max;
148 cval->initialized = 1;
149 }
150}
151
152
153static int check_mapped_selector_name(struct mixer_build *state, int unitid,
154 int index, char *buf, int buflen)
155{
156 const struct usbmix_selector_map *p;
157 int len;
158
159 if (!state->selector_map)
160 return 0;
161 for (p = state->selector_map; p->id; p++) {
162 if (p->id == unitid && index < p->count) {
163 len = strscpy(buf, p->names[index], buflen);
164 return len < 0 ? buflen : len;
165 }
166 }
167 return 0;
168}
169
170
171
172
173static void *find_audio_control_unit(struct mixer_build *state,
174 unsigned char unit)
175{
176
177 struct uac_feature_unit_descriptor *hdr = NULL;
178
179 while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr,
180 USB_DT_CS_INTERFACE)) != NULL) {
181 if (hdr->bLength >= 4 &&
182 hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL &&
183 hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER &&
184 hdr->bUnitID == unit)
185 return hdr;
186 }
187
188 return NULL;
189}
190
191
192
193
194static int snd_usb_copy_string_desc(struct snd_usb_audio *chip,
195 int index, char *buf, int maxlen)
196{
197 int len = usb_string(chip->dev, index, buf, maxlen - 1);
198
199 if (len < 0)
200 return 0;
201
202 buf[len] = 0;
203 return len;
204}
205
206
207
208
209static int convert_signed_value(struct usb_mixer_elem_info *cval, int val)
210{
211 switch (cval->val_type) {
212 case USB_MIXER_BOOLEAN:
213 return !!val;
214 case USB_MIXER_INV_BOOLEAN:
215 return !val;
216 case USB_MIXER_U8:
217 val &= 0xff;
218 break;
219 case USB_MIXER_S8:
220 val &= 0xff;
221 if (val >= 0x80)
222 val -= 0x100;
223 break;
224 case USB_MIXER_U16:
225 val &= 0xffff;
226 break;
227 case USB_MIXER_S16:
228 val &= 0xffff;
229 if (val >= 0x8000)
230 val -= 0x10000;
231 break;
232 }
233 return val;
234}
235
236
237
238
239static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val)
240{
241 switch (cval->val_type) {
242 case USB_MIXER_BOOLEAN:
243 return !!val;
244 case USB_MIXER_INV_BOOLEAN:
245 return !val;
246 case USB_MIXER_S8:
247 case USB_MIXER_U8:
248 return val & 0xff;
249 case USB_MIXER_S16:
250 case USB_MIXER_U16:
251 return val & 0xffff;
252 }
253 return 0;
254}
255
256static int get_relative_value(struct usb_mixer_elem_info *cval, int val)
257{
258 if (!cval->res)
259 cval->res = 1;
260 if (val < cval->min)
261 return 0;
262 else if (val >= cval->max)
263 return DIV_ROUND_UP(cval->max - cval->min, cval->res);
264 else
265 return (val - cval->min) / cval->res;
266}
267
268static int get_abs_value(struct usb_mixer_elem_info *cval, int val)
269{
270 if (val < 0)
271 return cval->min;
272 if (!cval->res)
273 cval->res = 1;
274 val *= cval->res;
275 val += cval->min;
276 if (val > cval->max)
277 return cval->max;
278 return val;
279}
280
281static int uac2_ctl_value_size(int val_type)
282{
283 switch (val_type) {
284 case USB_MIXER_S32:
285 case USB_MIXER_U32:
286 return 4;
287 case USB_MIXER_S16:
288 case USB_MIXER_U16:
289 return 2;
290 default:
291 return 1;
292 }
293 return 0;
294}
295
296
297
298
299
300
301static inline int mixer_ctrl_intf(struct usb_mixer_interface *mixer)
302{
303 return get_iface_desc(mixer->hostif)->bInterfaceNumber;
304}
305
306static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request,
307 int validx, int *value_ret)
308{
309 struct snd_usb_audio *chip = cval->head.mixer->chip;
310 unsigned char buf[2];
311 int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
312 int timeout = 10;
313 int idx = 0, err;
314
315 err = snd_usb_lock_shutdown(chip);
316 if (err < 0)
317 return -EIO;
318
319 while (timeout-- > 0) {
320 idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8);
321 err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request,
322 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
323 validx, idx, buf, val_len);
324 if (err >= val_len) {
325 *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len));
326 err = 0;
327 goto out;
328 } else if (err == -ETIMEDOUT) {
329 goto out;
330 }
331 }
332 usb_audio_dbg(chip,
333 "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
334 request, validx, idx, cval->val_type);
335 err = -EINVAL;
336
337 out:
338 snd_usb_unlock_shutdown(chip);
339 return err;
340}
341
342static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request,
343 int validx, int *value_ret)
344{
345 struct snd_usb_audio *chip = cval->head.mixer->chip;
346
347 unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)];
348 unsigned char *val;
349 int idx = 0, ret, val_size, size;
350 __u8 bRequest;
351
352 val_size = uac2_ctl_value_size(cval->val_type);
353
354 if (request == UAC_GET_CUR) {
355 bRequest = UAC2_CS_CUR;
356 size = val_size;
357 } else {
358 bRequest = UAC2_CS_RANGE;
359 size = sizeof(__u16) + 3 * val_size;
360 }
361
362 memset(buf, 0, sizeof(buf));
363
364 ret = snd_usb_lock_shutdown(chip) ? -EIO : 0;
365 if (ret)
366 goto error;
367
368 idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8);
369 ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest,
370 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
371 validx, idx, buf, size);
372 snd_usb_unlock_shutdown(chip);
373
374 if (ret < 0) {
375error:
376 usb_audio_err(chip,
377 "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
378 request, validx, idx, cval->val_type);
379 return ret;
380 }
381
382
383
384 switch (request) {
385 case UAC_GET_CUR:
386 val = buf;
387 break;
388 case UAC_GET_MIN:
389 val = buf + sizeof(__u16);
390 break;
391 case UAC_GET_MAX:
392 val = buf + sizeof(__u16) + val_size;
393 break;
394 case UAC_GET_RES:
395 val = buf + sizeof(__u16) + val_size * 2;
396 break;
397 default:
398 return -EINVAL;
399 }
400
401 *value_ret = convert_signed_value(cval,
402 snd_usb_combine_bytes(val, val_size));
403
404 return 0;
405}
406
407static int get_ctl_value(struct usb_mixer_elem_info *cval, int request,
408 int validx, int *value_ret)
409{
410 validx += cval->idx_off;
411
412 return (cval->head.mixer->protocol == UAC_VERSION_1) ?
413 get_ctl_value_v1(cval, request, validx, value_ret) :
414 get_ctl_value_v2(cval, request, validx, value_ret);
415}
416
417static int get_cur_ctl_value(struct usb_mixer_elem_info *cval,
418 int validx, int *value)
419{
420 return get_ctl_value(cval, UAC_GET_CUR, validx, value);
421}
422
423
424static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval,
425 int channel, int *value)
426{
427 return get_ctl_value(cval, UAC_GET_CUR,
428 (cval->control << 8) | channel,
429 value);
430}
431
432int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
433 int channel, int index, int *value)
434{
435 int err;
436
437 if (cval->cached & (1 << channel)) {
438 *value = cval->cache_val[index];
439 return 0;
440 }
441 err = get_cur_mix_raw(cval, channel, value);
442 if (err < 0) {
443 if (!cval->head.mixer->ignore_ctl_error)
444 usb_audio_dbg(cval->head.mixer->chip,
445 "cannot get current value for control %d ch %d: err = %d\n",
446 cval->control, channel, err);
447 return err;
448 }
449 cval->cached |= 1 << channel;
450 cval->cache_val[index] = *value;
451 return 0;
452}
453
454
455
456
457
458int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
459 int request, int validx, int value_set)
460{
461 struct snd_usb_audio *chip = cval->head.mixer->chip;
462 unsigned char buf[4];
463 int idx = 0, val_len, err, timeout = 10;
464
465 validx += cval->idx_off;
466
467
468 if (cval->head.mixer->protocol == UAC_VERSION_1) {
469 val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1;
470 } else {
471 val_len = uac2_ctl_value_size(cval->val_type);
472
473
474 if (request != UAC_SET_CUR) {
475 usb_audio_dbg(chip, "RANGE setting not yet supported\n");
476 return -EINVAL;
477 }
478
479 request = UAC2_CS_CUR;
480 }
481
482 value_set = convert_bytes_value(cval, value_set);
483 buf[0] = value_set & 0xff;
484 buf[1] = (value_set >> 8) & 0xff;
485 buf[2] = (value_set >> 16) & 0xff;
486 buf[3] = (value_set >> 24) & 0xff;
487
488 err = snd_usb_lock_shutdown(chip);
489 if (err < 0)
490 return -EIO;
491
492 while (timeout-- > 0) {
493 idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8);
494 err = snd_usb_ctl_msg(chip->dev,
495 usb_sndctrlpipe(chip->dev, 0), request,
496 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
497 validx, idx, buf, val_len);
498 if (err >= 0) {
499 err = 0;
500 goto out;
501 } else if (err == -ETIMEDOUT) {
502 goto out;
503 }
504 }
505 usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n",
506 request, validx, idx, cval->val_type, buf[0], buf[1]);
507 err = -EINVAL;
508
509 out:
510 snd_usb_unlock_shutdown(chip);
511 return err;
512}
513
514static int set_cur_ctl_value(struct usb_mixer_elem_info *cval,
515 int validx, int value)
516{
517 return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value);
518}
519
520int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
521 int index, int value)
522{
523 int err;
524 unsigned int read_only = (channel == 0) ?
525 cval->master_readonly :
526 cval->ch_readonly & (1 << (channel - 1));
527
528 if (read_only) {
529 usb_audio_dbg(cval->head.mixer->chip,
530 "%s(): channel %d of control %d is read_only\n",
531 __func__, channel, cval->control);
532 return 0;
533 }
534
535 err = snd_usb_mixer_set_ctl_value(cval,
536 UAC_SET_CUR, (cval->control << 8) | channel,
537 value);
538 if (err < 0)
539 return err;
540 cval->cached |= 1 << channel;
541 cval->cache_val[index] = value;
542 return 0;
543}
544
545
546
547
548int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
549 unsigned int size, unsigned int __user *_tlv)
550{
551 struct usb_mixer_elem_info *cval = kcontrol->private_data;
552 DECLARE_TLV_DB_MINMAX(scale, 0, 0);
553
554 if (size < sizeof(scale))
555 return -ENOMEM;
556 if (cval->min_mute)
557 scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE;
558 scale[2] = cval->dBmin;
559 scale[3] = cval->dBmax;
560 if (copy_to_user(_tlv, scale, sizeof(scale)))
561 return -EFAULT;
562 return 0;
563}
564
565
566
567
568
569static int parse_audio_unit(struct mixer_build *state, int unitid);
570
571
572
573
574
575
576static int check_matrix_bitmap(unsigned char *bmap,
577 int ich, int och, int num_outs)
578{
579 int idx = ich * num_outs + och;
580 return bmap[idx >> 3] & (0x80 >> (idx & 7));
581}
582
583
584
585
586
587
588
589
590int snd_usb_mixer_add_list(struct usb_mixer_elem_list *list,
591 struct snd_kcontrol *kctl,
592 bool is_std_info)
593{
594 struct usb_mixer_interface *mixer = list->mixer;
595 int err;
596
597 while (snd_ctl_find_id(mixer->chip->card, &kctl->id))
598 kctl->id.index++;
599 err = snd_ctl_add(mixer->chip->card, kctl);
600 if (err < 0) {
601 usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n",
602 err);
603 return err;
604 }
605 list->kctl = kctl;
606 list->is_std_info = is_std_info;
607 list->next_id_elem = mixer->id_elems[list->id];
608 mixer->id_elems[list->id] = list;
609 return 0;
610}
611
612
613
614
615
616static struct iterm_name_combo {
617 int type;
618 char *name;
619} iterm_names[] = {
620 { 0x0300, "Output" },
621 { 0x0301, "Speaker" },
622 { 0x0302, "Headphone" },
623 { 0x0303, "HMD Audio" },
624 { 0x0304, "Desktop Speaker" },
625 { 0x0305, "Room Speaker" },
626 { 0x0306, "Com Speaker" },
627 { 0x0307, "LFE" },
628 { 0x0600, "External In" },
629 { 0x0601, "Analog In" },
630 { 0x0602, "Digital In" },
631 { 0x0603, "Line" },
632 { 0x0604, "Legacy In" },
633 { 0x0605, "IEC958 In" },
634 { 0x0606, "1394 DA Stream" },
635 { 0x0607, "1394 DV Stream" },
636 { 0x0700, "Embedded" },
637 { 0x0701, "Noise Source" },
638 { 0x0702, "Equalization Noise" },
639 { 0x0703, "CD" },
640 { 0x0704, "DAT" },
641 { 0x0705, "DCC" },
642 { 0x0706, "MiniDisk" },
643 { 0x0707, "Analog Tape" },
644 { 0x0708, "Phonograph" },
645 { 0x0709, "VCR Audio" },
646 { 0x070a, "Video Disk Audio" },
647 { 0x070b, "DVD Audio" },
648 { 0x070c, "TV Tuner Audio" },
649 { 0x070d, "Satellite Rec Audio" },
650 { 0x070e, "Cable Tuner Audio" },
651 { 0x070f, "DSS Audio" },
652 { 0x0710, "Radio Receiver" },
653 { 0x0711, "Radio Transmitter" },
654 { 0x0712, "Multi-Track Recorder" },
655 { 0x0713, "Synthesizer" },
656 { 0 },
657};
658
659static int get_term_name(struct snd_usb_audio *chip, struct usb_audio_term *iterm,
660 unsigned char *name, int maxlen, int term_only)
661{
662 struct iterm_name_combo *names;
663 int len;
664
665 if (iterm->name) {
666 len = snd_usb_copy_string_desc(chip, iterm->name,
667 name, maxlen);
668 if (len)
669 return len;
670 }
671
672
673 if (iterm->type >> 16) {
674 if (term_only)
675 return 0;
676 switch (iterm->type >> 16) {
677 case UAC3_SELECTOR_UNIT:
678 strcpy(name, "Selector");
679 return 8;
680 case UAC3_PROCESSING_UNIT:
681 strcpy(name, "Process Unit");
682 return 12;
683 case UAC3_EXTENSION_UNIT:
684 strcpy(name, "Ext Unit");
685 return 8;
686 case UAC3_MIXER_UNIT:
687 strcpy(name, "Mixer");
688 return 5;
689 default:
690 return sprintf(name, "Unit %d", iterm->id);
691 }
692 }
693
694 switch (iterm->type & 0xff00) {
695 case 0x0100:
696 strcpy(name, "PCM");
697 return 3;
698 case 0x0200:
699 strcpy(name, "Mic");
700 return 3;
701 case 0x0400:
702 strcpy(name, "Headset");
703 return 7;
704 case 0x0500:
705 strcpy(name, "Phone");
706 return 5;
707 }
708
709 for (names = iterm_names; names->type; names++) {
710 if (names->type == iterm->type) {
711 strcpy(name, names->name);
712 return strlen(names->name);
713 }
714 }
715
716 return 0;
717}
718
719
720
721
722static int get_cluster_channels_v3(struct mixer_build *state, unsigned int cluster_id)
723{
724 struct uac3_cluster_header_descriptor c_header;
725 int err;
726
727 err = snd_usb_ctl_msg(state->chip->dev,
728 usb_rcvctrlpipe(state->chip->dev, 0),
729 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
730 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
731 cluster_id,
732 snd_usb_ctrl_intf(state->chip),
733 &c_header, sizeof(c_header));
734 if (err < 0)
735 goto error;
736 if (err != sizeof(c_header)) {
737 err = -EIO;
738 goto error;
739 }
740
741 return c_header.bNrChannels;
742
743error:
744 usb_audio_err(state->chip, "cannot request logical cluster ID: %d (err: %d)\n", cluster_id, err);
745 return err;
746}
747
748
749
750
751static int uac_mixer_unit_get_channels(struct mixer_build *state,
752 struct uac_mixer_unit_descriptor *desc)
753{
754 int mu_channels;
755
756 switch (state->mixer->protocol) {
757 case UAC_VERSION_1:
758 case UAC_VERSION_2:
759 default:
760 if (desc->bLength < sizeof(*desc) + desc->bNrInPins + 1)
761 return 0;
762 mu_channels = uac_mixer_unit_bNrChannels(desc);
763 break;
764 case UAC_VERSION_3:
765 mu_channels = get_cluster_channels_v3(state,
766 uac3_mixer_unit_wClusterDescrID(desc));
767 break;
768 }
769
770 return mu_channels;
771}
772
773
774
775
776static int __check_input_term(struct mixer_build *state, int id,
777 struct usb_audio_term *term);
778
779static int parse_term_uac1_iterm_unit(struct mixer_build *state,
780 struct usb_audio_term *term,
781 void *p1, int id)
782{
783 struct uac_input_terminal_descriptor *d = p1;
784
785 term->type = le16_to_cpu(d->wTerminalType);
786 term->channels = d->bNrChannels;
787 term->chconfig = le16_to_cpu(d->wChannelConfig);
788 term->name = d->iTerminal;
789 return 0;
790}
791
792static int parse_term_uac2_iterm_unit(struct mixer_build *state,
793 struct usb_audio_term *term,
794 void *p1, int id)
795{
796 struct uac2_input_terminal_descriptor *d = p1;
797 int err;
798
799
800 err = __check_input_term(state, d->bCSourceID, term);
801 if (err < 0)
802 return err;
803
804
805
806
807 term->id = id;
808 term->type = le16_to_cpu(d->wTerminalType);
809 term->channels = d->bNrChannels;
810 term->chconfig = le32_to_cpu(d->bmChannelConfig);
811 term->name = d->iTerminal;
812 return 0;
813}
814
815static int parse_term_uac3_iterm_unit(struct mixer_build *state,
816 struct usb_audio_term *term,
817 void *p1, int id)
818{
819 struct uac3_input_terminal_descriptor *d = p1;
820 int err;
821
822
823 err = __check_input_term(state, d->bCSourceID, term);
824 if (err < 0)
825 return err;
826
827
828
829
830 term->id = id;
831 term->type = le16_to_cpu(d->wTerminalType);
832
833 err = get_cluster_channels_v3(state, le16_to_cpu(d->wClusterDescrID));
834 if (err < 0)
835 return err;
836 term->channels = err;
837
838
839 term->chconfig = 0;
840
841 term->name = le16_to_cpu(d->wTerminalDescrStr);
842 return 0;
843}
844
845static int parse_term_mixer_unit(struct mixer_build *state,
846 struct usb_audio_term *term,
847 void *p1, int id)
848{
849 struct uac_mixer_unit_descriptor *d = p1;
850 int protocol = state->mixer->protocol;
851 int err;
852
853 err = uac_mixer_unit_get_channels(state, d);
854 if (err <= 0)
855 return err;
856
857 term->type = UAC3_MIXER_UNIT << 16;
858 term->channels = err;
859 if (protocol != UAC_VERSION_3) {
860 term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol);
861 term->name = uac_mixer_unit_iMixer(d);
862 }
863 return 0;
864}
865
866static int parse_term_selector_unit(struct mixer_build *state,
867 struct usb_audio_term *term,
868 void *p1, int id)
869{
870 struct uac_selector_unit_descriptor *d = p1;
871 int err;
872
873
874 err = __check_input_term(state, d->baSourceID[0], term);
875 if (err < 0)
876 return err;
877 term->type = UAC3_SELECTOR_UNIT << 16;
878 term->id = id;
879 if (state->mixer->protocol != UAC_VERSION_3)
880 term->name = uac_selector_unit_iSelector(d);
881 return 0;
882}
883
884static int parse_term_proc_unit(struct mixer_build *state,
885 struct usb_audio_term *term,
886 void *p1, int id, int vtype)
887{
888 struct uac_processing_unit_descriptor *d = p1;
889 int protocol = state->mixer->protocol;
890 int err;
891
892 if (d->bNrInPins) {
893
894 err = __check_input_term(state, d->baSourceID[0], term);
895 if (err < 0)
896 return err;
897 }
898
899 term->type = vtype << 16;
900 term->id = id;
901
902 if (protocol == UAC_VERSION_3)
903 return 0;
904
905 if (!term->channels) {
906 term->channels = uac_processing_unit_bNrChannels(d);
907 term->chconfig = uac_processing_unit_wChannelConfig(d, protocol);
908 }
909 term->name = uac_processing_unit_iProcessing(d, protocol);
910 return 0;
911}
912
913static int parse_term_effect_unit(struct mixer_build *state,
914 struct usb_audio_term *term,
915 void *p1, int id)
916{
917 struct uac2_effect_unit_descriptor *d = p1;
918 int err;
919
920 err = __check_input_term(state, d->bSourceID, term);
921 if (err < 0)
922 return err;
923 term->type = UAC3_EFFECT_UNIT << 16;
924 term->id = id;
925 return 0;
926}
927
928static int parse_term_uac2_clock_source(struct mixer_build *state,
929 struct usb_audio_term *term,
930 void *p1, int id)
931{
932 struct uac_clock_source_descriptor *d = p1;
933
934 term->type = UAC3_CLOCK_SOURCE << 16;
935 term->id = id;
936 term->name = d->iClockSource;
937 return 0;
938}
939
940static int parse_term_uac3_clock_source(struct mixer_build *state,
941 struct usb_audio_term *term,
942 void *p1, int id)
943{
944 struct uac3_clock_source_descriptor *d = p1;
945
946 term->type = UAC3_CLOCK_SOURCE << 16;
947 term->id = id;
948 term->name = le16_to_cpu(d->wClockSourceStr);
949 return 0;
950}
951
952#define PTYPE(a, b) ((a) << 8 | (b))
953
954
955
956
957
958static int __check_input_term(struct mixer_build *state, int id,
959 struct usb_audio_term *term)
960{
961 int protocol = state->mixer->protocol;
962 void *p1;
963 unsigned char *hdr;
964
965 for (;;) {
966
967 if (test_and_set_bit(id, state->termbitmap))
968 return -EINVAL;
969
970 p1 = find_audio_control_unit(state, id);
971 if (!p1)
972 break;
973 if (!snd_usb_validate_audio_desc(p1, protocol))
974 break;
975
976 hdr = p1;
977 term->id = id;
978
979 switch (PTYPE(protocol, hdr[2])) {
980 case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT):
981 case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT):
982 case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): {
983
984 struct uac_feature_unit_descriptor *d = p1;
985
986 id = d->bSourceID;
987 break;
988 }
989 case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL):
990 return parse_term_uac1_iterm_unit(state, term, p1, id);
991 case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL):
992 return parse_term_uac2_iterm_unit(state, term, p1, id);
993 case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL):
994 return parse_term_uac3_iterm_unit(state, term, p1, id);
995 case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT):
996 case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT):
997 case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT):
998 return parse_term_mixer_unit(state, term, p1, id);
999 case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT):
1000 case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT):
1001 case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR):
1002 case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT):
1003 case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR):
1004 return parse_term_selector_unit(state, term, p1, id);
1005 case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT):
1006 case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2):
1007 case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT):
1008 return parse_term_proc_unit(state, term, p1, id,
1009 UAC3_PROCESSING_UNIT);
1010 case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT):
1011 case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT):
1012 return parse_term_effect_unit(state, term, p1, id);
1013 case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT):
1014 case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2):
1015 case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT):
1016 return parse_term_proc_unit(state, term, p1, id,
1017 UAC3_EXTENSION_UNIT);
1018 case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE):
1019 return parse_term_uac2_clock_source(state, term, p1, id);
1020 case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE):
1021 return parse_term_uac3_clock_source(state, term, p1, id);
1022 default:
1023 return -ENODEV;
1024 }
1025 }
1026 return -ENODEV;
1027}
1028
1029
1030static int check_input_term(struct mixer_build *state, int id,
1031 struct usb_audio_term *term)
1032{
1033 memset(term, 0, sizeof(*term));
1034 memset(state->termbitmap, 0, sizeof(state->termbitmap));
1035 return __check_input_term(state, id, term);
1036}
1037
1038
1039
1040
1041
1042
1043struct usb_feature_control_info {
1044 int control;
1045 const char *name;
1046 int type;
1047 int type_uac2;
1048};
1049
1050static const struct usb_feature_control_info audio_feature_info[] = {
1051 { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 },
1052 { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 },
1053 { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 },
1054 { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 },
1055 { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 },
1056 { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 },
1057 { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 },
1058 { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 },
1059 { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 },
1060 { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 },
1061
1062 { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 },
1063 { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 },
1064 { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 },
1065};
1066
1067static void usb_mixer_elem_info_free(struct usb_mixer_elem_info *cval)
1068{
1069 kfree(cval);
1070}
1071
1072
1073void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl)
1074{
1075 usb_mixer_elem_info_free(kctl->private_data);
1076 kctl->private_data = NULL;
1077}
1078
1079
1080
1081
1082
1083
1084static void volume_control_quirks(struct usb_mixer_elem_info *cval,
1085 struct snd_kcontrol *kctl)
1086{
1087 struct snd_usb_audio *chip = cval->head.mixer->chip;
1088 switch (chip->usb_id) {
1089 case USB_ID(0x0763, 0x2030):
1090 case USB_ID(0x0763, 0x2031):
1091 if (strcmp(kctl->id.name, "Effect Duration") == 0) {
1092 cval->min = 0x0000;
1093 cval->max = 0xffff;
1094 cval->res = 0x00e6;
1095 break;
1096 }
1097 if (strcmp(kctl->id.name, "Effect Volume") == 0 ||
1098 strcmp(kctl->id.name, "Effect Feedback Volume") == 0) {
1099 cval->min = 0x00;
1100 cval->max = 0xff;
1101 break;
1102 }
1103 if (strstr(kctl->id.name, "Effect Return") != NULL) {
1104 cval->min = 0xb706;
1105 cval->max = 0xff7b;
1106 cval->res = 0x0073;
1107 break;
1108 }
1109 if ((strstr(kctl->id.name, "Playback Volume") != NULL) ||
1110 (strstr(kctl->id.name, "Effect Send") != NULL)) {
1111 cval->min = 0xb5fb;
1112 cval->max = 0xfcfe;
1113 cval->res = 0x0073;
1114 }
1115 break;
1116
1117 case USB_ID(0x0763, 0x2081):
1118 case USB_ID(0x0763, 0x2080):
1119 if (strcmp(kctl->id.name, "Effect Duration") == 0) {
1120 usb_audio_info(chip,
1121 "set quirk for FTU Effect Duration\n");
1122 cval->min = 0x0000;
1123 cval->max = 0x7f00;
1124 cval->res = 0x0100;
1125 break;
1126 }
1127 if (strcmp(kctl->id.name, "Effect Volume") == 0 ||
1128 strcmp(kctl->id.name, "Effect Feedback Volume") == 0) {
1129 usb_audio_info(chip,
1130 "set quirks for FTU Effect Feedback/Volume\n");
1131 cval->min = 0x00;
1132 cval->max = 0x7f;
1133 break;
1134 }
1135 break;
1136
1137 case USB_ID(0x0d8c, 0x0103):
1138 if (!strcmp(kctl->id.name, "PCM Playback Volume")) {
1139 usb_audio_info(chip,
1140 "set volume quirk for CM102-A+/102S+\n");
1141 cval->min = -256;
1142 }
1143 break;
1144
1145 case USB_ID(0x0471, 0x0101):
1146 case USB_ID(0x0471, 0x0104):
1147 case USB_ID(0x0471, 0x0105):
1148 case USB_ID(0x0672, 0x1041):
1149
1150
1151
1152
1153
1154 if (!strcmp(kctl->id.name, "PCM Playback Volume") &&
1155 cval->min == -15616) {
1156 usb_audio_info(chip,
1157 "set volume quirk for UDA1321/N101 chip\n");
1158 cval->max = -256;
1159 }
1160 break;
1161
1162 case USB_ID(0x046d, 0x09a4):
1163 if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
1164 usb_audio_info(chip,
1165 "set volume quirk for QuickCam E3500\n");
1166 cval->min = 6080;
1167 cval->max = 8768;
1168 cval->res = 192;
1169 }
1170 break;
1171
1172 case USB_ID(0x046d, 0x0807):
1173 case USB_ID(0x046d, 0x0808):
1174 case USB_ID(0x046d, 0x0809):
1175 case USB_ID(0x046d, 0x0819):
1176 case USB_ID(0x046d, 0x081b):
1177 case USB_ID(0x046d, 0x081d):
1178 case USB_ID(0x046d, 0x0825):
1179 case USB_ID(0x046d, 0x0826):
1180 case USB_ID(0x046d, 0x08ca):
1181 case USB_ID(0x046d, 0x0991):
1182 case USB_ID(0x046d, 0x09a2):
1183
1184
1185
1186
1187 if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
1188 usb_audio_info(chip,
1189 "set resolution quirk: cval->res = 384\n");
1190 cval->res = 384;
1191 }
1192 break;
1193 case USB_ID(0x0495, 0x3042):
1194 if ((strstr(kctl->id.name, "Playback Volume") != NULL) ||
1195 strstr(kctl->id.name, "Capture Volume") != NULL) {
1196 cval->min >>= 8;
1197 cval->max = 0;
1198 cval->res = 1;
1199 }
1200 break;
1201 case USB_ID(0x1224, 0x2a25):
1202 if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
1203 usb_audio_info(chip,
1204 "set resolution quirk: cval->res = 16\n");
1205 cval->res = 16;
1206 }
1207 break;
1208 }
1209}
1210
1211
1212
1213
1214static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval,
1215 int default_min, struct snd_kcontrol *kctl)
1216{
1217
1218 cval->min = default_min;
1219 cval->max = cval->min + 1;
1220 cval->res = 1;
1221 cval->dBmin = cval->dBmax = 0;
1222
1223 if (cval->val_type == USB_MIXER_BOOLEAN ||
1224 cval->val_type == USB_MIXER_INV_BOOLEAN) {
1225 cval->initialized = 1;
1226 } else {
1227 int minchn = 0;
1228 if (cval->cmask) {
1229 int i;
1230 for (i = 0; i < MAX_CHANNELS; i++)
1231 if (cval->cmask & (1 << i)) {
1232 minchn = i + 1;
1233 break;
1234 }
1235 }
1236 if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 ||
1237 get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) {
1238 usb_audio_err(cval->head.mixer->chip,
1239 "%d:%d: cannot get min/max values for control %d (id %d)\n",
1240 cval->head.id, mixer_ctrl_intf(cval->head.mixer),
1241 cval->control, cval->head.id);
1242 return -EINVAL;
1243 }
1244 if (get_ctl_value(cval, UAC_GET_RES,
1245 (cval->control << 8) | minchn,
1246 &cval->res) < 0) {
1247 cval->res = 1;
1248 } else if (cval->head.mixer->protocol == UAC_VERSION_1) {
1249 int last_valid_res = cval->res;
1250
1251 while (cval->res > 1) {
1252 if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES,
1253 (cval->control << 8) | minchn,
1254 cval->res / 2) < 0)
1255 break;
1256 cval->res /= 2;
1257 }
1258 if (get_ctl_value(cval, UAC_GET_RES,
1259 (cval->control << 8) | minchn, &cval->res) < 0)
1260 cval->res = last_valid_res;
1261 }
1262 if (cval->res == 0)
1263 cval->res = 1;
1264
1265
1266
1267
1268
1269
1270
1271 if (cval->min + cval->res < cval->max) {
1272 int last_valid_res = cval->res;
1273 int saved, test, check;
1274 if (get_cur_mix_raw(cval, minchn, &saved) < 0)
1275 goto no_res_check;
1276 for (;;) {
1277 test = saved;
1278 if (test < cval->max)
1279 test += cval->res;
1280 else
1281 test -= cval->res;
1282 if (test < cval->min || test > cval->max ||
1283 snd_usb_set_cur_mix_value(cval, minchn, 0, test) ||
1284 get_cur_mix_raw(cval, minchn, &check)) {
1285 cval->res = last_valid_res;
1286 break;
1287 }
1288 if (test == check)
1289 break;
1290 cval->res *= 2;
1291 }
1292 snd_usb_set_cur_mix_value(cval, minchn, 0, saved);
1293 }
1294
1295no_res_check:
1296 cval->initialized = 1;
1297 }
1298
1299 if (kctl)
1300 volume_control_quirks(cval, kctl);
1301
1302
1303
1304
1305 cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256;
1306 cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256;
1307 if (cval->dBmin > cval->dBmax) {
1308
1309 if (cval->dBmin < 0)
1310 cval->dBmax = 0;
1311 else if (cval->dBmin > 0)
1312 cval->dBmin = 0;
1313 if (cval->dBmin > cval->dBmax) {
1314
1315 return -EINVAL;
1316 }
1317 } else {
1318
1319
1320
1321 if (cval->dBmax <= -9600) {
1322 usb_audio_info(cval->head.mixer->chip,
1323 "%d:%d: bogus dB values (%d/%d), disabling dB reporting\n",
1324 cval->head.id, mixer_ctrl_intf(cval->head.mixer),
1325 cval->dBmin, cval->dBmax);
1326 cval->dBmin = cval->dBmax = 0;
1327 }
1328 }
1329
1330 return 0;
1331}
1332
1333#define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL)
1334
1335
1336static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol,
1337 struct snd_ctl_elem_info *uinfo)
1338{
1339 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1340
1341 if (cval->val_type == USB_MIXER_BOOLEAN ||
1342 cval->val_type == USB_MIXER_INV_BOOLEAN)
1343 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1344 else
1345 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1346 uinfo->count = cval->channels;
1347 if (cval->val_type == USB_MIXER_BOOLEAN ||
1348 cval->val_type == USB_MIXER_INV_BOOLEAN) {
1349 uinfo->value.integer.min = 0;
1350 uinfo->value.integer.max = 1;
1351 } else {
1352 if (!cval->initialized) {
1353 get_min_max_with_quirks(cval, 0, kcontrol);
1354 if (cval->initialized && cval->dBmin >= cval->dBmax) {
1355 kcontrol->vd[0].access &=
1356 ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1357 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK);
1358 snd_ctl_notify(cval->head.mixer->chip->card,
1359 SNDRV_CTL_EVENT_MASK_INFO,
1360 &kcontrol->id);
1361 }
1362 }
1363 uinfo->value.integer.min = 0;
1364 uinfo->value.integer.max =
1365 DIV_ROUND_UP(cval->max - cval->min, cval->res);
1366 }
1367 return 0;
1368}
1369
1370
1371static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol,
1372 struct snd_ctl_elem_value *ucontrol)
1373{
1374 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1375 int c, cnt, val, err;
1376
1377 ucontrol->value.integer.value[0] = cval->min;
1378 if (cval->cmask) {
1379 cnt = 0;
1380 for (c = 0; c < MAX_CHANNELS; c++) {
1381 if (!(cval->cmask & (1 << c)))
1382 continue;
1383 err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val);
1384 if (err < 0)
1385 return filter_error(cval, err);
1386 val = get_relative_value(cval, val);
1387 ucontrol->value.integer.value[cnt] = val;
1388 cnt++;
1389 }
1390 return 0;
1391 } else {
1392
1393 err = snd_usb_get_cur_mix_value(cval, 0, 0, &val);
1394 if (err < 0)
1395 return filter_error(cval, err);
1396 val = get_relative_value(cval, val);
1397 ucontrol->value.integer.value[0] = val;
1398 }
1399 return 0;
1400}
1401
1402
1403static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol,
1404 struct snd_ctl_elem_value *ucontrol)
1405{
1406 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1407 int c, cnt, val, oval, err;
1408 int changed = 0;
1409
1410 if (cval->cmask) {
1411 cnt = 0;
1412 for (c = 0; c < MAX_CHANNELS; c++) {
1413 if (!(cval->cmask & (1 << c)))
1414 continue;
1415 err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval);
1416 if (err < 0)
1417 return filter_error(cval, err);
1418 val = ucontrol->value.integer.value[cnt];
1419 val = get_abs_value(cval, val);
1420 if (oval != val) {
1421 snd_usb_set_cur_mix_value(cval, c + 1, cnt, val);
1422 changed = 1;
1423 }
1424 cnt++;
1425 }
1426 } else {
1427
1428 err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval);
1429 if (err < 0)
1430 return filter_error(cval, err);
1431 val = ucontrol->value.integer.value[0];
1432 val = get_abs_value(cval, val);
1433 if (val != oval) {
1434 snd_usb_set_cur_mix_value(cval, 0, 0, val);
1435 changed = 1;
1436 }
1437 }
1438 return changed;
1439}
1440
1441
1442static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol,
1443 struct snd_ctl_elem_value *ucontrol)
1444{
1445 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1446 int val, err;
1447
1448 err = snd_usb_get_cur_mix_value(cval, 0, 0, &val);
1449 if (err < 0)
1450 return filter_error(cval, err);
1451 val = (val != 0);
1452 ucontrol->value.integer.value[0] = val;
1453 return 0;
1454}
1455
1456static int get_connector_value(struct usb_mixer_elem_info *cval,
1457 char *name, int *val)
1458{
1459 struct snd_usb_audio *chip = cval->head.mixer->chip;
1460 int idx = 0, validx, ret;
1461
1462 validx = cval->control << 8 | 0;
1463
1464 ret = snd_usb_lock_shutdown(chip) ? -EIO : 0;
1465 if (ret)
1466 goto error;
1467
1468 idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8);
1469 if (cval->head.mixer->protocol == UAC_VERSION_2) {
1470 struct uac2_connectors_ctl_blk uac2_conn;
1471
1472 ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR,
1473 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
1474 validx, idx, &uac2_conn, sizeof(uac2_conn));
1475 if (val)
1476 *val = !!uac2_conn.bNrChannels;
1477 } else {
1478 struct uac3_insertion_ctl_blk uac3_conn;
1479
1480 ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR,
1481 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
1482 validx, idx, &uac3_conn, sizeof(uac3_conn));
1483 if (val)
1484 *val = !!uac3_conn.bmConInserted;
1485 }
1486
1487 snd_usb_unlock_shutdown(chip);
1488
1489 if (ret < 0) {
1490 if (name && strstr(name, "Speaker")) {
1491 if (val)
1492 *val = 1;
1493 return 0;
1494 }
1495error:
1496 usb_audio_err(chip,
1497 "cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
1498 UAC_GET_CUR, validx, idx, cval->val_type);
1499 return filter_error(cval, ret);
1500 }
1501
1502 return ret;
1503}
1504
1505
1506static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol,
1507 struct snd_ctl_elem_value *ucontrol)
1508{
1509 struct usb_mixer_elem_info *cval = kcontrol->private_data;
1510 int ret, val;
1511
1512 ret = get_connector_value(cval, kcontrol->id.name, &val);
1513
1514 if (ret < 0)
1515 return ret;
1516
1517 ucontrol->value.integer.value[0] = val;
1518 return 0;
1519}
1520
1521static const struct snd_kcontrol_new usb_feature_unit_ctl = {
1522 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1523 .name = "",
1524 .info = mixer_ctl_feature_info,
1525 .get = mixer_ctl_feature_get,
1526 .put = mixer_ctl_feature_put,
1527};
1528
1529
1530static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = {
1531 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1532 .name = "",
1533 .info = mixer_ctl_feature_info,
1534 .get = mixer_ctl_feature_get,
1535 .put = NULL,
1536};
1537
1538
1539
1540
1541
1542static const struct snd_kcontrol_new usb_bool_master_control_ctl_ro = {
1543 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1544 .name = "",
1545 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1546 .info = snd_ctl_boolean_mono_info,
1547 .get = mixer_ctl_master_bool_get,
1548 .put = NULL,
1549};
1550
1551static const struct snd_kcontrol_new usb_connector_ctl_ro = {
1552 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1553 .name = "",
1554 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1555 .info = snd_ctl_boolean_mono_info,
1556 .get = mixer_ctl_connector_get,
1557 .put = NULL,
1558};
1559
1560
1561
1562
1563
1564const struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl;
1565
1566
1567
1568
1569static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str)
1570{
1571 return strlcat(kctl->id.name, str, sizeof(kctl->id.name));
1572}
1573
1574
1575
1576
1577
1578
1579static void check_no_speaker_on_headset(struct snd_kcontrol *kctl,
1580 struct snd_card *card)
1581{
1582 static const char * const names_to_check[] = {
1583 "Headset", "headset", "Headphone", "headphone", NULL};
1584 const char * const *s;
1585 bool found = false;
1586
1587 if (strcmp("Speaker", kctl->id.name))
1588 return;
1589
1590 for (s = names_to_check; *s; s++)
1591 if (strstr(card->shortname, *s)) {
1592 found = true;
1593 break;
1594 }
1595
1596 if (!found)
1597 return;
1598
1599 strscpy(kctl->id.name, "Headphone", sizeof(kctl->id.name));
1600}
1601
1602static const struct usb_feature_control_info *get_feature_control_info(int control)
1603{
1604 int i;
1605
1606 for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) {
1607 if (audio_feature_info[i].control == control)
1608 return &audio_feature_info[i];
1609 }
1610 return NULL;
1611}
1612
1613static void __build_feature_ctl(struct usb_mixer_interface *mixer,
1614 const struct usbmix_name_map *imap,
1615 unsigned int ctl_mask, int control,
1616 struct usb_audio_term *iterm,
1617 struct usb_audio_term *oterm,
1618 int unitid, int nameid, int readonly_mask)
1619{
1620 const struct usb_feature_control_info *ctl_info;
1621 unsigned int len = 0;
1622 int mapped_name = 0;
1623 struct snd_kcontrol *kctl;
1624 struct usb_mixer_elem_info *cval;
1625 const struct usbmix_name_map *map;
1626 unsigned int range;
1627
1628 if (control == UAC_FU_GRAPHIC_EQUALIZER) {
1629
1630 return;
1631 }
1632
1633 map = find_map(imap, unitid, control);
1634 if (check_ignored_ctl(map))
1635 return;
1636
1637 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
1638 if (!cval)
1639 return;
1640 snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid);
1641 cval->control = control;
1642 cval->cmask = ctl_mask;
1643
1644 ctl_info = get_feature_control_info(control);
1645 if (!ctl_info) {
1646 usb_mixer_elem_info_free(cval);
1647 return;
1648 }
1649 if (mixer->protocol == UAC_VERSION_1)
1650 cval->val_type = ctl_info->type;
1651 else
1652 cval->val_type = ctl_info->type_uac2 >= 0 ?
1653 ctl_info->type_uac2 : ctl_info->type;
1654
1655 if (ctl_mask == 0) {
1656 cval->channels = 1;
1657 cval->master_readonly = readonly_mask;
1658 } else {
1659 int i, c = 0;
1660 for (i = 0; i < 16; i++)
1661 if (ctl_mask & (1 << i))
1662 c++;
1663 cval->channels = c;
1664 cval->ch_readonly = readonly_mask;
1665 }
1666
1667
1668
1669
1670
1671
1672 if (cval->channels == readonly_mask)
1673 kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval);
1674 else
1675 kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
1676
1677 if (!kctl) {
1678 usb_audio_err(mixer->chip, "cannot malloc kcontrol\n");
1679 usb_mixer_elem_info_free(cval);
1680 return;
1681 }
1682 kctl->private_free = snd_usb_mixer_elem_free;
1683
1684 len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
1685 mapped_name = len != 0;
1686 if (!len && nameid)
1687 len = snd_usb_copy_string_desc(mixer->chip, nameid,
1688 kctl->id.name, sizeof(kctl->id.name));
1689
1690 switch (control) {
1691 case UAC_FU_MUTE:
1692 case UAC_FU_VOLUME:
1693
1694
1695
1696
1697
1698
1699
1700
1701 if (!len) {
1702 if (iterm)
1703 len = get_term_name(mixer->chip, iterm,
1704 kctl->id.name,
1705 sizeof(kctl->id.name), 1);
1706 if (!len && oterm)
1707 len = get_term_name(mixer->chip, oterm,
1708 kctl->id.name,
1709 sizeof(kctl->id.name), 1);
1710 if (!len)
1711 snprintf(kctl->id.name, sizeof(kctl->id.name),
1712 "Feature %d", unitid);
1713 }
1714
1715 if (!mapped_name)
1716 check_no_speaker_on_headset(kctl, mixer->chip->card);
1717
1718
1719
1720
1721
1722
1723 if (!mapped_name && oterm && !(oterm->type >> 16)) {
1724 if ((oterm->type & 0xff00) == 0x0100)
1725 append_ctl_name(kctl, " Capture");
1726 else
1727 append_ctl_name(kctl, " Playback");
1728 }
1729 append_ctl_name(kctl, control == UAC_FU_MUTE ?
1730 " Switch" : " Volume");
1731 break;
1732 default:
1733 if (!len)
1734 strscpy(kctl->id.name, audio_feature_info[control-1].name,
1735 sizeof(kctl->id.name));
1736 break;
1737 }
1738
1739
1740 get_min_max_with_quirks(cval, 0, kctl);
1741
1742
1743 if (cval->max <= cval->min) {
1744 usb_audio_dbg(mixer->chip,
1745 "[%d] FU [%s] skipped due to invalid volume\n",
1746 cval->head.id, kctl->id.name);
1747 snd_ctl_free_one(kctl);
1748 return;
1749 }
1750
1751
1752 if (control == UAC_FU_VOLUME) {
1753 check_mapped_dB(map, cval);
1754 if (cval->dBmin < cval->dBmax || !cval->initialized) {
1755 kctl->tlv.c = snd_usb_mixer_vol_tlv;
1756 kctl->vd[0].access |=
1757 SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1758 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
1759 }
1760 }
1761
1762 snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl);
1763
1764 range = (cval->max - cval->min) / cval->res;
1765
1766
1767
1768
1769
1770 if (range > 384) {
1771 usb_audio_warn(mixer->chip,
1772 "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.",
1773 range);
1774 usb_audio_warn(mixer->chip,
1775 "[%d] FU [%s] ch = %d, val = %d/%d/%d",
1776 cval->head.id, kctl->id.name, cval->channels,
1777 cval->min, cval->max, cval->res);
1778 }
1779
1780 usb_audio_dbg(mixer->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
1781 cval->head.id, kctl->id.name, cval->channels,
1782 cval->min, cval->max, cval->res);
1783 snd_usb_mixer_add_control(&cval->head, kctl);
1784}
1785
1786static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
1787 unsigned int ctl_mask, int control,
1788 struct usb_audio_term *iterm, int unitid,
1789 int readonly_mask)
1790{
1791 struct uac_feature_unit_descriptor *desc = raw_desc;
1792 int nameid = uac_feature_unit_iFeature(desc);
1793
1794 __build_feature_ctl(state->mixer, state->map, ctl_mask, control,
1795 iterm, &state->oterm, unitid, nameid, readonly_mask);
1796}
1797
1798static void build_feature_ctl_badd(struct usb_mixer_interface *mixer,
1799 unsigned int ctl_mask, int control, int unitid,
1800 const struct usbmix_name_map *badd_map)
1801{
1802 __build_feature_ctl(mixer, badd_map, ctl_mask, control,
1803 NULL, NULL, unitid, 0, 0);
1804}
1805
1806static void get_connector_control_name(struct usb_mixer_interface *mixer,
1807 struct usb_audio_term *term,
1808 bool is_input, char *name, int name_size)
1809{
1810 int name_len = get_term_name(mixer->chip, term, name, name_size, 0);
1811
1812 if (name_len == 0)
1813 strscpy(name, "Unknown", name_size);
1814
1815
1816
1817
1818
1819
1820 if (is_input)
1821 strlcat(name, " - Input Jack", name_size);
1822 else
1823 strlcat(name, " - Output Jack", name_size);
1824}
1825
1826
1827static int connector_mixer_resume(struct usb_mixer_elem_list *list)
1828{
1829 struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
1830
1831 get_connector_value(cval, NULL, NULL);
1832 return 0;
1833}
1834
1835
1836static void build_connector_control(struct usb_mixer_interface *mixer,
1837 const struct usbmix_name_map *imap,
1838 struct usb_audio_term *term, bool is_input)
1839{
1840 struct snd_kcontrol *kctl;
1841 struct usb_mixer_elem_info *cval;
1842 const struct usbmix_name_map *map;
1843
1844 map = find_map(imap, term->id, 0);
1845 if (check_ignored_ctl(map))
1846 return;
1847
1848 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
1849 if (!cval)
1850 return;
1851 snd_usb_mixer_elem_init_std(&cval->head, mixer, term->id);
1852
1853
1854 cval->head.resume = connector_mixer_resume;
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866 if (mixer->protocol == UAC_VERSION_2)
1867 cval->control = UAC2_TE_CONNECTOR;
1868 else
1869 cval->control = UAC3_TE_INSERTION;
1870
1871 cval->val_type = USB_MIXER_BOOLEAN;
1872 cval->channels = 1;
1873 cval->min = 0;
1874 cval->max = 1;
1875 kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval);
1876 if (!kctl) {
1877 usb_audio_err(mixer->chip, "cannot malloc kcontrol\n");
1878 usb_mixer_elem_info_free(cval);
1879 return;
1880 }
1881
1882 if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)))
1883 strlcat(kctl->id.name, " Jack", sizeof(kctl->id.name));
1884 else
1885 get_connector_control_name(mixer, term, is_input, kctl->id.name,
1886 sizeof(kctl->id.name));
1887 kctl->private_free = snd_usb_mixer_elem_free;
1888 snd_usb_mixer_add_control(&cval->head, kctl);
1889}
1890
1891static int parse_clock_source_unit(struct mixer_build *state, int unitid,
1892 void *_ftr)
1893{
1894 struct uac_clock_source_descriptor *hdr = _ftr;
1895 struct usb_mixer_elem_info *cval;
1896 struct snd_kcontrol *kctl;
1897 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1898 int ret;
1899
1900 if (state->mixer->protocol != UAC_VERSION_2)
1901 return -EINVAL;
1902
1903
1904
1905
1906
1907 if (!uac_v2v3_control_is_readable(hdr->bmControls,
1908 UAC2_CS_CONTROL_CLOCK_VALID))
1909 return 0;
1910
1911 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
1912 if (!cval)
1913 return -ENOMEM;
1914
1915 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID);
1916
1917 cval->min = 0;
1918 cval->max = 1;
1919 cval->channels = 1;
1920 cval->val_type = USB_MIXER_BOOLEAN;
1921 cval->control = UAC2_CS_CONTROL_CLOCK_VALID;
1922
1923 cval->master_readonly = 1;
1924
1925 kctl = snd_ctl_new1(&usb_bool_master_control_ctl_ro, cval);
1926
1927 if (!kctl) {
1928 usb_mixer_elem_info_free(cval);
1929 return -ENOMEM;
1930 }
1931
1932 kctl->private_free = snd_usb_mixer_elem_free;
1933 ret = snd_usb_copy_string_desc(state->chip, hdr->iClockSource,
1934 name, sizeof(name));
1935 if (ret > 0)
1936 snprintf(kctl->id.name, sizeof(kctl->id.name),
1937 "%s Validity", name);
1938 else
1939 snprintf(kctl->id.name, sizeof(kctl->id.name),
1940 "Clock Source %d Validity", hdr->bClockID);
1941
1942 return snd_usb_mixer_add_control(&cval->head, kctl);
1943}
1944
1945
1946
1947
1948
1949
1950static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
1951 void *_ftr)
1952{
1953 int channels, i, j;
1954 struct usb_audio_term iterm;
1955 unsigned int master_bits;
1956 int err, csize;
1957 struct uac_feature_unit_descriptor *hdr = _ftr;
1958 __u8 *bmaControls;
1959
1960 if (state->mixer->protocol == UAC_VERSION_1) {
1961 csize = hdr->bControlSize;
1962 channels = (hdr->bLength - 7) / csize - 1;
1963 bmaControls = hdr->bmaControls;
1964 } else if (state->mixer->protocol == UAC_VERSION_2) {
1965 struct uac2_feature_unit_descriptor *ftr = _ftr;
1966 csize = 4;
1967 channels = (hdr->bLength - 6) / 4 - 1;
1968 bmaControls = ftr->bmaControls;
1969 } else {
1970 struct uac3_feature_unit_descriptor *ftr = _ftr;
1971
1972 csize = 4;
1973 channels = (ftr->bLength - 7) / 4 - 1;
1974 bmaControls = ftr->bmaControls;
1975 }
1976
1977
1978 err = parse_audio_unit(state, hdr->bSourceID);
1979 if (err < 0)
1980 return err;
1981
1982
1983 err = check_input_term(state, hdr->bSourceID, &iterm);
1984 if (err < 0)
1985 return err;
1986
1987 master_bits = snd_usb_combine_bytes(bmaControls, csize);
1988
1989 switch (state->chip->usb_id) {
1990 case USB_ID(0x08bb, 0x2702):
1991 usb_audio_info(state->chip,
1992 "usbmixer: master volume quirk for PCM2702 chip\n");
1993
1994 master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME);
1995 break;
1996 case USB_ID(0x1130, 0xf211):
1997 usb_audio_info(state->chip,
1998 "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n");
1999
2000 channels = 0;
2001 break;
2002
2003 }
2004
2005 if (state->mixer->protocol == UAC_VERSION_1) {
2006
2007 for (i = 0; i < 10; i++) {
2008 unsigned int ch_bits = 0;
2009 int control = audio_feature_info[i].control;
2010
2011 for (j = 0; j < channels; j++) {
2012 unsigned int mask;
2013
2014 mask = snd_usb_combine_bytes(bmaControls +
2015 csize * (j+1), csize);
2016 if (mask & (1 << i))
2017 ch_bits |= (1 << j);
2018 }
2019
2020
2021
2022
2023
2024
2025 if (ch_bits & 1)
2026 build_feature_ctl(state, _ftr, ch_bits, control,
2027 &iterm, unitid, 0);
2028 if (master_bits & (1 << i))
2029 build_feature_ctl(state, _ftr, 0, control,
2030 &iterm, unitid, 0);
2031 }
2032 } else {
2033 for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) {
2034 unsigned int ch_bits = 0;
2035 unsigned int ch_read_only = 0;
2036 int control = audio_feature_info[i].control;
2037
2038 for (j = 0; j < channels; j++) {
2039 unsigned int mask;
2040
2041 mask = snd_usb_combine_bytes(bmaControls +
2042 csize * (j+1), csize);
2043 if (uac_v2v3_control_is_readable(mask, control)) {
2044 ch_bits |= (1 << j);
2045 if (!uac_v2v3_control_is_writeable(mask, control))
2046 ch_read_only |= (1 << j);
2047 }
2048 }
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063 if (ch_bits & 1)
2064 build_feature_ctl(state, _ftr, ch_bits, control,
2065 &iterm, unitid, ch_read_only);
2066 if (uac_v2v3_control_is_readable(master_bits, control))
2067 build_feature_ctl(state, _ftr, 0, control,
2068 &iterm, unitid,
2069 !uac_v2v3_control_is_writeable(master_bits,
2070 control));
2071 }
2072 }
2073
2074 return 0;
2075}
2076
2077
2078
2079
2080
2081
2082static bool mixer_bitmap_overflow(struct uac_mixer_unit_descriptor *desc,
2083 int protocol, int num_ins, int num_outs)
2084{
2085 u8 *hdr = (u8 *)desc;
2086 u8 *c = uac_mixer_unit_bmControls(desc, protocol);
2087 size_t rest;
2088
2089 switch (protocol) {
2090 case UAC_VERSION_1:
2091 default:
2092 rest = 1;
2093 break;
2094 case UAC_VERSION_2:
2095 rest = 2;
2096 break;
2097 case UAC_VERSION_3:
2098 rest = 6;
2099 break;
2100 }
2101
2102
2103 return c + (num_ins * num_outs + 7) / 8 + rest > hdr + hdr[0];
2104}
2105
2106
2107
2108
2109
2110
2111
2112static void build_mixer_unit_ctl(struct mixer_build *state,
2113 struct uac_mixer_unit_descriptor *desc,
2114 int in_pin, int in_ch, int num_outs,
2115 int unitid, struct usb_audio_term *iterm)
2116{
2117 struct usb_mixer_elem_info *cval;
2118 unsigned int i, len;
2119 struct snd_kcontrol *kctl;
2120 const struct usbmix_name_map *map;
2121
2122 map = find_map(state->map, unitid, 0);
2123 if (check_ignored_ctl(map))
2124 return;
2125
2126 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
2127 if (!cval)
2128 return;
2129
2130 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid);
2131 cval->control = in_ch + 1;
2132 cval->val_type = USB_MIXER_S16;
2133 for (i = 0; i < num_outs; i++) {
2134 __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol);
2135
2136 if (check_matrix_bitmap(c, in_ch, i, num_outs)) {
2137 cval->cmask |= (1 << i);
2138 cval->channels++;
2139 }
2140 }
2141
2142
2143 get_min_max(cval, 0);
2144
2145 kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval);
2146 if (!kctl) {
2147 usb_audio_err(state->chip, "cannot malloc kcontrol\n");
2148 usb_mixer_elem_info_free(cval);
2149 return;
2150 }
2151 kctl->private_free = snd_usb_mixer_elem_free;
2152
2153 len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
2154 if (!len)
2155 len = get_term_name(state->chip, iterm, kctl->id.name,
2156 sizeof(kctl->id.name), 0);
2157 if (!len)
2158 len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1);
2159 append_ctl_name(kctl, " Volume");
2160
2161 usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n",
2162 cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max);
2163 snd_usb_mixer_add_control(&cval->head, kctl);
2164}
2165
2166static int parse_audio_input_terminal(struct mixer_build *state, int unitid,
2167 void *raw_desc)
2168{
2169 struct usb_audio_term iterm;
2170 unsigned int control, bmctls, term_id;
2171
2172 if (state->mixer->protocol == UAC_VERSION_2) {
2173 struct uac2_input_terminal_descriptor *d_v2 = raw_desc;
2174 control = UAC2_TE_CONNECTOR;
2175 term_id = d_v2->bTerminalID;
2176 bmctls = le16_to_cpu(d_v2->bmControls);
2177 } else if (state->mixer->protocol == UAC_VERSION_3) {
2178 struct uac3_input_terminal_descriptor *d_v3 = raw_desc;
2179 control = UAC3_TE_INSERTION;
2180 term_id = d_v3->bTerminalID;
2181 bmctls = le32_to_cpu(d_v3->bmControls);
2182 } else {
2183 return 0;
2184 }
2185
2186 check_input_term(state, term_id, &iterm);
2187
2188
2189 if ((iterm.type & 0xff00) != 0x0100 &&
2190 uac_v2v3_control_is_readable(bmctls, control))
2191 build_connector_control(state->mixer, state->map, &iterm, true);
2192
2193 return 0;
2194}
2195
2196
2197
2198
2199static int parse_audio_mixer_unit(struct mixer_build *state, int unitid,
2200 void *raw_desc)
2201{
2202 struct uac_mixer_unit_descriptor *desc = raw_desc;
2203 struct usb_audio_term iterm;
2204 int input_pins, num_ins, num_outs;
2205 int pin, ich, err;
2206
2207 err = uac_mixer_unit_get_channels(state, desc);
2208 if (err < 0) {
2209 usb_audio_err(state->chip,
2210 "invalid MIXER UNIT descriptor %d\n",
2211 unitid);
2212 return err;
2213 }
2214
2215 num_outs = err;
2216 input_pins = desc->bNrInPins;
2217
2218 num_ins = 0;
2219 ich = 0;
2220 for (pin = 0; pin < input_pins; pin++) {
2221 err = parse_audio_unit(state, desc->baSourceID[pin]);
2222 if (err < 0)
2223 continue;
2224
2225 if (!num_outs)
2226 continue;
2227 err = check_input_term(state, desc->baSourceID[pin], &iterm);
2228 if (err < 0)
2229 return err;
2230 num_ins += iterm.channels;
2231 if (mixer_bitmap_overflow(desc, state->mixer->protocol,
2232 num_ins, num_outs))
2233 break;
2234 for (; ich < num_ins; ich++) {
2235 int och, ich_has_controls = 0;
2236
2237 for (och = 0; och < num_outs; och++) {
2238 __u8 *c = uac_mixer_unit_bmControls(desc,
2239 state->mixer->protocol);
2240
2241 if (check_matrix_bitmap(c, ich, och, num_outs)) {
2242 ich_has_controls = 1;
2243 break;
2244 }
2245 }
2246 if (ich_has_controls)
2247 build_mixer_unit_ctl(state, desc, pin, ich, num_outs,
2248 unitid, &iterm);
2249 }
2250 }
2251 return 0;
2252}
2253
2254
2255
2256
2257
2258
2259static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol,
2260 struct snd_ctl_elem_value *ucontrol)
2261{
2262 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2263 int err, val;
2264
2265 err = get_cur_ctl_value(cval, cval->control << 8, &val);
2266 if (err < 0) {
2267 ucontrol->value.integer.value[0] = cval->min;
2268 return filter_error(cval, err);
2269 }
2270 val = get_relative_value(cval, val);
2271 ucontrol->value.integer.value[0] = val;
2272 return 0;
2273}
2274
2275
2276static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol,
2277 struct snd_ctl_elem_value *ucontrol)
2278{
2279 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2280 int val, oval, err;
2281
2282 err = get_cur_ctl_value(cval, cval->control << 8, &oval);
2283 if (err < 0)
2284 return filter_error(cval, err);
2285 val = ucontrol->value.integer.value[0];
2286 val = get_abs_value(cval, val);
2287 if (val != oval) {
2288 set_cur_ctl_value(cval, cval->control << 8, val);
2289 return 1;
2290 }
2291 return 0;
2292}
2293
2294
2295static const struct snd_kcontrol_new mixer_procunit_ctl = {
2296 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2297 .name = "",
2298 .info = mixer_ctl_feature_info,
2299 .get = mixer_ctl_procunit_get,
2300 .put = mixer_ctl_procunit_put,
2301};
2302
2303
2304
2305
2306struct procunit_value_info {
2307 int control;
2308 const char *suffix;
2309 int val_type;
2310 int min_value;
2311};
2312
2313struct procunit_info {
2314 int type;
2315 char *name;
2316 const struct procunit_value_info *values;
2317};
2318
2319static const struct procunit_value_info undefined_proc_info[] = {
2320 { 0x00, "Control Undefined", 0 },
2321 { 0 }
2322};
2323
2324static const struct procunit_value_info updown_proc_info[] = {
2325 { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2326 { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
2327 { 0 }
2328};
2329static const struct procunit_value_info prologic_proc_info[] = {
2330 { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2331 { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
2332 { 0 }
2333};
2334static const struct procunit_value_info threed_enh_proc_info[] = {
2335 { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2336 { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 },
2337 { 0 }
2338};
2339static const struct procunit_value_info reverb_proc_info[] = {
2340 { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2341 { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 },
2342 { UAC_REVERB_TIME, "Time", USB_MIXER_U16 },
2343 { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 },
2344 { 0 }
2345};
2346static const struct procunit_value_info chorus_proc_info[] = {
2347 { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2348 { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 },
2349 { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 },
2350 { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 },
2351 { 0 }
2352};
2353static const struct procunit_value_info dcr_proc_info[] = {
2354 { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN },
2355 { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 },
2356 { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 },
2357 { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 },
2358 { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 },
2359 { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 },
2360 { 0 }
2361};
2362
2363static const struct procunit_info procunits[] = {
2364 { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info },
2365 { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info },
2366 { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info },
2367 { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info },
2368 { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info },
2369 { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info },
2370 { 0 },
2371};
2372
2373static const struct procunit_value_info uac3_updown_proc_info[] = {
2374 { UAC3_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 },
2375 { 0 }
2376};
2377static const struct procunit_value_info uac3_stereo_ext_proc_info[] = {
2378 { UAC3_EXT_WIDTH_CONTROL, "Width Control", USB_MIXER_U8 },
2379 { 0 }
2380};
2381
2382static const struct procunit_info uac3_procunits[] = {
2383 { UAC3_PROCESS_UP_DOWNMIX, "Up Down", uac3_updown_proc_info },
2384 { UAC3_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", uac3_stereo_ext_proc_info },
2385 { UAC3_PROCESS_MULTI_FUNCTION, "Multi-Function", undefined_proc_info },
2386 { 0 },
2387};
2388
2389
2390
2391
2392static const struct procunit_value_info clock_rate_xu_info[] = {
2393 { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 },
2394 { 0 }
2395};
2396static const struct procunit_value_info clock_source_xu_info[] = {
2397 { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN },
2398 { 0 }
2399};
2400static const struct procunit_value_info spdif_format_xu_info[] = {
2401 { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN },
2402 { 0 }
2403};
2404static const struct procunit_value_info soft_limit_xu_info[] = {
2405 { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN },
2406 { 0 }
2407};
2408static const struct procunit_info extunits[] = {
2409 { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info },
2410 { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info },
2411 { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info },
2412 { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info },
2413 { 0 }
2414};
2415
2416
2417
2418
2419static int build_audio_procunit(struct mixer_build *state, int unitid,
2420 void *raw_desc, const struct procunit_info *list,
2421 bool extension_unit)
2422{
2423 struct uac_processing_unit_descriptor *desc = raw_desc;
2424 int num_ins;
2425 struct usb_mixer_elem_info *cval;
2426 struct snd_kcontrol *kctl;
2427 int i, err, nameid, type, len, val;
2428 const struct procunit_info *info;
2429 const struct procunit_value_info *valinfo;
2430 const struct usbmix_name_map *map;
2431 static const struct procunit_value_info default_value_info[] = {
2432 { 0x01, "Switch", USB_MIXER_BOOLEAN },
2433 { 0 }
2434 };
2435 static const struct procunit_info default_info = {
2436 0, NULL, default_value_info
2437 };
2438 const char *name = extension_unit ?
2439 "Extension Unit" : "Processing Unit";
2440
2441 num_ins = desc->bNrInPins;
2442 for (i = 0; i < num_ins; i++) {
2443 err = parse_audio_unit(state, desc->baSourceID[i]);
2444 if (err < 0)
2445 return err;
2446 }
2447
2448 type = le16_to_cpu(desc->wProcessType);
2449 for (info = list; info && info->type; info++)
2450 if (info->type == type)
2451 break;
2452 if (!info || !info->type)
2453 info = &default_info;
2454
2455 for (valinfo = info->values; valinfo->control; valinfo++) {
2456 __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol);
2457
2458 if (state->mixer->protocol == UAC_VERSION_1) {
2459 if (!(controls[valinfo->control / 8] &
2460 (1 << ((valinfo->control % 8) - 1))))
2461 continue;
2462 } else {
2463 if (!uac_v2v3_control_is_readable(controls[valinfo->control / 8],
2464 valinfo->control))
2465 continue;
2466 }
2467
2468 map = find_map(state->map, unitid, valinfo->control);
2469 if (check_ignored_ctl(map))
2470 continue;
2471 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
2472 if (!cval)
2473 return -ENOMEM;
2474 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid);
2475 cval->control = valinfo->control;
2476 cval->val_type = valinfo->val_type;
2477 cval->channels = 1;
2478
2479 if (state->mixer->protocol > UAC_VERSION_1 &&
2480 !uac_v2v3_control_is_writeable(controls[valinfo->control / 8],
2481 valinfo->control))
2482 cval->master_readonly = 1;
2483
2484
2485 switch (type) {
2486 case UAC_PROCESS_UP_DOWNMIX: {
2487 bool mode_sel = false;
2488
2489 switch (state->mixer->protocol) {
2490 case UAC_VERSION_1:
2491 case UAC_VERSION_2:
2492 default:
2493 if (cval->control == UAC_UD_MODE_SELECT)
2494 mode_sel = true;
2495 break;
2496 case UAC_VERSION_3:
2497 if (cval->control == UAC3_UD_MODE_SELECT)
2498 mode_sel = true;
2499 break;
2500 }
2501
2502 if (mode_sel) {
2503 __u8 *control_spec = uac_processing_unit_specific(desc,
2504 state->mixer->protocol);
2505 cval->min = 1;
2506 cval->max = control_spec[0];
2507 cval->res = 1;
2508 cval->initialized = 1;
2509 break;
2510 }
2511
2512 get_min_max(cval, valinfo->min_value);
2513 break;
2514 }
2515 case USB_XU_CLOCK_RATE:
2516
2517
2518
2519
2520 cval->min = 0;
2521 cval->max = 5;
2522 cval->res = 1;
2523 cval->initialized = 1;
2524 break;
2525 default:
2526 get_min_max(cval, valinfo->min_value);
2527 break;
2528 }
2529
2530 err = get_cur_ctl_value(cval, cval->control << 8, &val);
2531 if (err < 0) {
2532 usb_mixer_elem_info_free(cval);
2533 return -EINVAL;
2534 }
2535
2536 kctl = snd_ctl_new1(&mixer_procunit_ctl, cval);
2537 if (!kctl) {
2538 usb_mixer_elem_info_free(cval);
2539 return -ENOMEM;
2540 }
2541 kctl->private_free = snd_usb_mixer_elem_free;
2542
2543 if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) {
2544 ;
2545 } else if (info->name) {
2546 strscpy(kctl->id.name, info->name, sizeof(kctl->id.name));
2547 } else {
2548 if (extension_unit)
2549 nameid = uac_extension_unit_iExtension(desc, state->mixer->protocol);
2550 else
2551 nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol);
2552 len = 0;
2553 if (nameid)
2554 len = snd_usb_copy_string_desc(state->chip,
2555 nameid,
2556 kctl->id.name,
2557 sizeof(kctl->id.name));
2558 if (!len)
2559 strscpy(kctl->id.name, name, sizeof(kctl->id.name));
2560 }
2561 append_ctl_name(kctl, " ");
2562 append_ctl_name(kctl, valinfo->suffix);
2563
2564 usb_audio_dbg(state->chip,
2565 "[%d] PU [%s] ch = %d, val = %d/%d\n",
2566 cval->head.id, kctl->id.name, cval->channels,
2567 cval->min, cval->max);
2568
2569 err = snd_usb_mixer_add_control(&cval->head, kctl);
2570 if (err < 0)
2571 return err;
2572 }
2573 return 0;
2574}
2575
2576static int parse_audio_processing_unit(struct mixer_build *state, int unitid,
2577 void *raw_desc)
2578{
2579 switch (state->mixer->protocol) {
2580 case UAC_VERSION_1:
2581 case UAC_VERSION_2:
2582 default:
2583 return build_audio_procunit(state, unitid, raw_desc,
2584 procunits, false);
2585 case UAC_VERSION_3:
2586 return build_audio_procunit(state, unitid, raw_desc,
2587 uac3_procunits, false);
2588 }
2589}
2590
2591static int parse_audio_extension_unit(struct mixer_build *state, int unitid,
2592 void *raw_desc)
2593{
2594
2595
2596
2597
2598 return build_audio_procunit(state, unitid, raw_desc, extunits, true);
2599}
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol,
2610 struct snd_ctl_elem_info *uinfo)
2611{
2612 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2613 const char **itemlist = (const char **)kcontrol->private_value;
2614
2615 if (snd_BUG_ON(!itemlist))
2616 return -EINVAL;
2617 return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist);
2618}
2619
2620
2621static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol,
2622 struct snd_ctl_elem_value *ucontrol)
2623{
2624 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2625 int val, err;
2626
2627 err = get_cur_ctl_value(cval, cval->control << 8, &val);
2628 if (err < 0) {
2629 ucontrol->value.enumerated.item[0] = 0;
2630 return filter_error(cval, err);
2631 }
2632 val = get_relative_value(cval, val);
2633 ucontrol->value.enumerated.item[0] = val;
2634 return 0;
2635}
2636
2637
2638static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol,
2639 struct snd_ctl_elem_value *ucontrol)
2640{
2641 struct usb_mixer_elem_info *cval = kcontrol->private_data;
2642 int val, oval, err;
2643
2644 err = get_cur_ctl_value(cval, cval->control << 8, &oval);
2645 if (err < 0)
2646 return filter_error(cval, err);
2647 val = ucontrol->value.enumerated.item[0];
2648 val = get_abs_value(cval, val);
2649 if (val != oval) {
2650 set_cur_ctl_value(cval, cval->control << 8, val);
2651 return 1;
2652 }
2653 return 0;
2654}
2655
2656
2657static const struct snd_kcontrol_new mixer_selectunit_ctl = {
2658 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2659 .name = "",
2660 .info = mixer_ctl_selector_info,
2661 .get = mixer_ctl_selector_get,
2662 .put = mixer_ctl_selector_put,
2663};
2664
2665
2666
2667
2668
2669static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl)
2670{
2671 int i, num_ins = 0;
2672
2673 if (kctl->private_data) {
2674 struct usb_mixer_elem_info *cval = kctl->private_data;
2675 num_ins = cval->max;
2676 usb_mixer_elem_info_free(cval);
2677 kctl->private_data = NULL;
2678 }
2679 if (kctl->private_value) {
2680 char **itemlist = (char **)kctl->private_value;
2681 for (i = 0; i < num_ins; i++)
2682 kfree(itemlist[i]);
2683 kfree(itemlist);
2684 kctl->private_value = 0;
2685 }
2686}
2687
2688
2689
2690
2691static int parse_audio_selector_unit(struct mixer_build *state, int unitid,
2692 void *raw_desc)
2693{
2694 struct uac_selector_unit_descriptor *desc = raw_desc;
2695 unsigned int i, nameid, len;
2696 int err;
2697 struct usb_mixer_elem_info *cval;
2698 struct snd_kcontrol *kctl;
2699 const struct usbmix_name_map *map;
2700 char **namelist;
2701
2702 for (i = 0; i < desc->bNrInPins; i++) {
2703 err = parse_audio_unit(state, desc->baSourceID[i]);
2704 if (err < 0)
2705 return err;
2706 }
2707
2708 if (desc->bNrInPins == 1)
2709 return 0;
2710
2711 map = find_map(state->map, unitid, 0);
2712 if (check_ignored_ctl(map))
2713 return 0;
2714
2715 cval = kzalloc(sizeof(*cval), GFP_KERNEL);
2716 if (!cval)
2717 return -ENOMEM;
2718 snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid);
2719 cval->val_type = USB_MIXER_U8;
2720 cval->channels = 1;
2721 cval->min = 1;
2722 cval->max = desc->bNrInPins;
2723 cval->res = 1;
2724 cval->initialized = 1;
2725
2726 switch (state->mixer->protocol) {
2727 case UAC_VERSION_1:
2728 default:
2729 cval->control = 0;
2730 break;
2731 case UAC_VERSION_2:
2732 case UAC_VERSION_3:
2733 if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR ||
2734 desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR)
2735 cval->control = UAC2_CX_CLOCK_SELECTOR;
2736 else
2737 cval->control = UAC2_SU_SELECTOR;
2738 break;
2739 }
2740
2741 namelist = kcalloc(desc->bNrInPins, sizeof(char *), GFP_KERNEL);
2742 if (!namelist) {
2743 err = -ENOMEM;
2744 goto error_cval;
2745 }
2746#define MAX_ITEM_NAME_LEN 64
2747 for (i = 0; i < desc->bNrInPins; i++) {
2748 struct usb_audio_term iterm;
2749 namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL);
2750 if (!namelist[i]) {
2751 err = -ENOMEM;
2752 goto error_name;
2753 }
2754 len = check_mapped_selector_name(state, unitid, i, namelist[i],
2755 MAX_ITEM_NAME_LEN);
2756 if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0)
2757 len = get_term_name(state->chip, &iterm, namelist[i],
2758 MAX_ITEM_NAME_LEN, 0);
2759 if (! len)
2760 sprintf(namelist[i], "Input %u", i);
2761 }
2762
2763 kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval);
2764 if (! kctl) {
2765 usb_audio_err(state->chip, "cannot malloc kcontrol\n");
2766 err = -ENOMEM;
2767 goto error_name;
2768 }
2769 kctl->private_value = (unsigned long)namelist;
2770 kctl->private_free = usb_mixer_selector_elem_free;
2771
2772
2773 len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
2774 if (!len) {
2775
2776 switch (state->mixer->protocol) {
2777 case UAC_VERSION_1:
2778 case UAC_VERSION_2:
2779 default:
2780
2781 nameid = uac_selector_unit_iSelector(desc);
2782 if (nameid)
2783 len = snd_usb_copy_string_desc(state->chip,
2784 nameid, kctl->id.name,
2785 sizeof(kctl->id.name));
2786 break;
2787 case UAC_VERSION_3:
2788
2789 break;
2790 }
2791
2792
2793 if (!len)
2794 len = get_term_name(state->chip, &state->oterm,
2795 kctl->id.name, sizeof(kctl->id.name), 0);
2796
2797 if (!len)
2798 strscpy(kctl->id.name, "USB", sizeof(kctl->id.name));
2799
2800
2801 if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR ||
2802 desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR)
2803 append_ctl_name(kctl, " Clock Source");
2804 else if ((state->oterm.type & 0xff00) == 0x0100)
2805 append_ctl_name(kctl, " Capture Source");
2806 else
2807 append_ctl_name(kctl, " Playback Source");
2808 }
2809
2810 usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n",
2811 cval->head.id, kctl->id.name, desc->bNrInPins);
2812 return snd_usb_mixer_add_control(&cval->head, kctl);
2813
2814 error_name:
2815 for (i = 0; i < desc->bNrInPins; i++)
2816 kfree(namelist[i]);
2817 kfree(namelist);
2818 error_cval:
2819 usb_mixer_elem_info_free(cval);
2820 return err;
2821}
2822
2823
2824
2825
2826
2827static int parse_audio_unit(struct mixer_build *state, int unitid)
2828{
2829 unsigned char *p1;
2830 int protocol = state->mixer->protocol;
2831
2832 if (test_and_set_bit(unitid, state->unitbitmap))
2833 return 0;
2834
2835 p1 = find_audio_control_unit(state, unitid);
2836 if (!p1) {
2837 usb_audio_err(state->chip, "unit %d not found!\n", unitid);
2838 return -EINVAL;
2839 }
2840
2841 if (!snd_usb_validate_audio_desc(p1, protocol)) {
2842 usb_audio_dbg(state->chip, "invalid unit %d\n", unitid);
2843 return 0;
2844 }
2845
2846 switch (PTYPE(protocol, p1[2])) {
2847 case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL):
2848 case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL):
2849 case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL):
2850 return parse_audio_input_terminal(state, unitid, p1);
2851 case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT):
2852 case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT):
2853 case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT):
2854 return parse_audio_mixer_unit(state, unitid, p1);
2855 case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE):
2856 case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE):
2857 return parse_clock_source_unit(state, unitid, p1);
2858 case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT):
2859 case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT):
2860 case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT):
2861 case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR):
2862 case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR):
2863 return parse_audio_selector_unit(state, unitid, p1);
2864 case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT):
2865 case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT):
2866 case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT):
2867 return parse_audio_feature_unit(state, unitid, p1);
2868 case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT):
2869 case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2):
2870 case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT):
2871 return parse_audio_processing_unit(state, unitid, p1);
2872 case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT):
2873 case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2):
2874 case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT):
2875 return parse_audio_extension_unit(state, unitid, p1);
2876 case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT):
2877 case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT):
2878 return 0;
2879 default:
2880 usb_audio_err(state->chip,
2881 "unit %u: unexpected type 0x%02x\n",
2882 unitid, p1[2]);
2883 return -EINVAL;
2884 }
2885}
2886
2887static void snd_usb_mixer_free(struct usb_mixer_interface *mixer)
2888{
2889
2890 snd_usb_mixer_disconnect(mixer);
2891
2892 kfree(mixer->id_elems);
2893 if (mixer->urb) {
2894 kfree(mixer->urb->transfer_buffer);
2895 usb_free_urb(mixer->urb);
2896 }
2897 usb_free_urb(mixer->rc_urb);
2898 kfree(mixer->rc_setup_packet);
2899 kfree(mixer);
2900}
2901
2902static int snd_usb_mixer_dev_free(struct snd_device *device)
2903{
2904 struct usb_mixer_interface *mixer = device->device_data;
2905 snd_usb_mixer_free(mixer);
2906 return 0;
2907}
2908
2909
2910struct uac3_badd_profile {
2911 int subclass;
2912 const char *name;
2913 int c_chmask;
2914 int p_chmask;
2915 int st_chmask;
2916};
2917
2918static const struct uac3_badd_profile uac3_badd_profiles[] = {
2919 {
2920
2921
2922
2923
2924
2925 .subclass = UAC3_FUNCTION_SUBCLASS_GENERIC_IO,
2926 .name = "GENERIC IO",
2927 .c_chmask = -1,
2928 .p_chmask = -1,
2929 },
2930 {
2931
2932 .subclass = UAC3_FUNCTION_SUBCLASS_HEADPHONE,
2933 .name = "HEADPHONE",
2934 .p_chmask = 3,
2935 },
2936 {
2937
2938 .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKER,
2939 .name = "SPEAKER",
2940 .p_chmask = -1,
2941 },
2942 {
2943
2944 .subclass = UAC3_FUNCTION_SUBCLASS_MICROPHONE,
2945 .name = "MICROPHONE",
2946 .c_chmask = -1,
2947 },
2948 {
2949
2950
2951
2952
2953
2954 .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET,
2955 .name = "HEADSET",
2956 .c_chmask = 1,
2957 .p_chmask = -1,
2958 .st_chmask = 1,
2959 },
2960 {
2961
2962 .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER,
2963 .name = "HEADSET ADAPTER",
2964 .c_chmask = 1,
2965 .p_chmask = 3,
2966 .st_chmask = 1,
2967 },
2968 {
2969
2970 .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE,
2971 .name = "SPEAKERPHONE",
2972 .c_chmask = 1,
2973 .p_chmask = 1,
2974 },
2975 { 0 }
2976};
2977
2978static bool uac3_badd_func_has_valid_channels(struct usb_mixer_interface *mixer,
2979 const struct uac3_badd_profile *f,
2980 int c_chmask, int p_chmask)
2981{
2982
2983
2984
2985
2986 if (f->c_chmask < 0 && f->p_chmask < 0) {
2987 if (!c_chmask && !p_chmask) {
2988 usb_audio_warn(mixer->chip, "BAAD %s: no channels?",
2989 f->name);
2990 return false;
2991 }
2992 return true;
2993 }
2994
2995 if ((f->c_chmask < 0 && !c_chmask) ||
2996 (f->c_chmask >= 0 && f->c_chmask != c_chmask)) {
2997 usb_audio_warn(mixer->chip, "BAAD %s c_chmask mismatch",
2998 f->name);
2999 return false;
3000 }
3001 if ((f->p_chmask < 0 && !p_chmask) ||
3002 (f->p_chmask >= 0 && f->p_chmask != p_chmask)) {
3003 usb_audio_warn(mixer->chip, "BAAD %s p_chmask mismatch",
3004 f->name);
3005 return false;
3006 }
3007 return true;
3008}
3009
3010
3011
3012
3013
3014
3015
3016
3017static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer,
3018 int ctrlif)
3019{
3020 struct usb_device *dev = mixer->chip->dev;
3021 struct usb_interface_assoc_descriptor *assoc;
3022 int badd_profile = mixer->chip->badd_profile;
3023 const struct uac3_badd_profile *f;
3024 const struct usbmix_ctl_map *map;
3025 int p_chmask = 0, c_chmask = 0, st_chmask = 0;
3026 int i;
3027
3028 assoc = usb_ifnum_to_if(dev, ctrlif)->intf_assoc;
3029
3030
3031 for (i = 0; i < assoc->bInterfaceCount; i++) {
3032 int intf = assoc->bFirstInterface + i;
3033
3034 struct usb_interface *iface;
3035 struct usb_host_interface *alts;
3036 struct usb_interface_descriptor *altsd;
3037 unsigned int maxpacksize;
3038 char dir_in;
3039 int chmask, num;
3040
3041 if (intf == ctrlif)
3042 continue;
3043
3044 iface = usb_ifnum_to_if(dev, intf);
3045 if (!iface)
3046 continue;
3047
3048 num = iface->num_altsetting;
3049
3050 if (num < 2)
3051 return -EINVAL;
3052
3053
3054
3055
3056
3057
3058
3059
3060 alts = &iface->altsetting[1];
3061 altsd = get_iface_desc(alts);
3062
3063 if (altsd->bNumEndpoints < 1)
3064 return -EINVAL;
3065
3066
3067 dir_in = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN);
3068 maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
3069
3070 switch (maxpacksize) {
3071 default:
3072 usb_audio_err(mixer->chip,
3073 "incorrect wMaxPacketSize 0x%x for BADD profile\n",
3074 maxpacksize);
3075 return -EINVAL;
3076 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16:
3077 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16:
3078 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24:
3079 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24:
3080 chmask = 1;
3081 break;
3082 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16:
3083 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16:
3084 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24:
3085 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24:
3086 chmask = 3;
3087 break;
3088 }
3089
3090 if (dir_in)
3091 c_chmask = chmask;
3092 else
3093 p_chmask = chmask;
3094 }
3095
3096 usb_audio_dbg(mixer->chip,
3097 "UAC3 BADD profile 0x%x: detected c_chmask=%d p_chmask=%d\n",
3098 badd_profile, c_chmask, p_chmask);
3099
3100
3101 for (map = uac3_badd_usbmix_ctl_maps; map->id; map++) {
3102 if (map->id == badd_profile)
3103 break;
3104 }
3105
3106 if (!map->id)
3107 return -EINVAL;
3108
3109 for (f = uac3_badd_profiles; f->name; f++) {
3110 if (badd_profile == f->subclass)
3111 break;
3112 }
3113 if (!f->name)
3114 return -EINVAL;
3115 if (!uac3_badd_func_has_valid_channels(mixer, f, c_chmask, p_chmask))
3116 return -EINVAL;
3117 st_chmask = f->st_chmask;
3118
3119
3120 if (p_chmask) {
3121
3122 build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE,
3123 UAC3_BADD_FU_ID2, map->map);
3124
3125 build_feature_ctl_badd(mixer, p_chmask, UAC_FU_VOLUME,
3126 UAC3_BADD_FU_ID2, map->map);
3127 }
3128
3129
3130 if (c_chmask) {
3131
3132 build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE,
3133 UAC3_BADD_FU_ID5, map->map);
3134
3135 build_feature_ctl_badd(mixer, c_chmask, UAC_FU_VOLUME,
3136 UAC3_BADD_FU_ID5, map->map);
3137 }
3138
3139
3140 if (st_chmask) {
3141
3142 build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE,
3143 UAC3_BADD_FU_ID7, map->map);
3144
3145 build_feature_ctl_badd(mixer, 1, UAC_FU_VOLUME,
3146 UAC3_BADD_FU_ID7, map->map);
3147 }
3148
3149
3150 if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) {
3151 struct usb_audio_term iterm, oterm;
3152
3153
3154 memset(&iterm, 0, sizeof(iterm));
3155 iterm.id = UAC3_BADD_IT_ID4;
3156 iterm.type = UAC_BIDIR_TERMINAL_HEADSET;
3157 build_connector_control(mixer, map->map, &iterm, true);
3158
3159
3160 memset(&oterm, 0, sizeof(oterm));
3161 oterm.id = UAC3_BADD_OT_ID3;
3162 oterm.type = UAC_BIDIR_TERMINAL_HEADSET;
3163 build_connector_control(mixer, map->map, &oterm, false);
3164 }
3165
3166 return 0;
3167}
3168
3169
3170
3171
3172
3173
3174static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
3175{
3176 struct mixer_build state;
3177 int err;
3178 const struct usbmix_ctl_map *map;
3179 void *p;
3180
3181 memset(&state, 0, sizeof(state));
3182 state.chip = mixer->chip;
3183 state.mixer = mixer;
3184 state.buffer = mixer->hostif->extra;
3185 state.buflen = mixer->hostif->extralen;
3186
3187
3188 for (map = usbmix_ctl_maps; map->id; map++) {
3189 if (map->id == state.chip->usb_id) {
3190 state.map = map->map;
3191 state.selector_map = map->selector_map;
3192 mixer->connector_map = map->connector_map;
3193 break;
3194 }
3195 }
3196
3197 p = NULL;
3198 while ((p = snd_usb_find_csint_desc(mixer->hostif->extra,
3199 mixer->hostif->extralen,
3200 p, UAC_OUTPUT_TERMINAL)) != NULL) {
3201 if (!snd_usb_validate_audio_desc(p, mixer->protocol))
3202 continue;
3203
3204 if (mixer->protocol == UAC_VERSION_1) {
3205 struct uac1_output_terminal_descriptor *desc = p;
3206
3207
3208 set_bit(desc->bTerminalID, state.unitbitmap);
3209 state.oterm.id = desc->bTerminalID;
3210 state.oterm.type = le16_to_cpu(desc->wTerminalType);
3211 state.oterm.name = desc->iTerminal;
3212 err = parse_audio_unit(&state, desc->bSourceID);
3213 if (err < 0 && err != -EINVAL)
3214 return err;
3215 } else if (mixer->protocol == UAC_VERSION_2) {
3216 struct uac2_output_terminal_descriptor *desc = p;
3217
3218
3219 set_bit(desc->bTerminalID, state.unitbitmap);
3220 state.oterm.id = desc->bTerminalID;
3221 state.oterm.type = le16_to_cpu(desc->wTerminalType);
3222 state.oterm.name = desc->iTerminal;
3223 err = parse_audio_unit(&state, desc->bSourceID);
3224 if (err < 0 && err != -EINVAL)
3225 return err;
3226
3227
3228
3229
3230
3231 err = parse_audio_unit(&state, desc->bCSourceID);
3232 if (err < 0 && err != -EINVAL)
3233 return err;
3234
3235 if ((state.oterm.type & 0xff00) != 0x0100 &&
3236 uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls),
3237 UAC2_TE_CONNECTOR)) {
3238 build_connector_control(state.mixer, state.map,
3239 &state.oterm, false);
3240 }
3241 } else {
3242 struct uac3_output_terminal_descriptor *desc = p;
3243
3244
3245 set_bit(desc->bTerminalID, state.unitbitmap);
3246 state.oterm.id = desc->bTerminalID;
3247 state.oterm.type = le16_to_cpu(desc->wTerminalType);
3248 state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr);
3249 err = parse_audio_unit(&state, desc->bSourceID);
3250 if (err < 0 && err != -EINVAL)
3251 return err;
3252
3253
3254
3255
3256
3257 err = parse_audio_unit(&state, desc->bCSourceID);
3258 if (err < 0 && err != -EINVAL)
3259 return err;
3260
3261 if ((state.oterm.type & 0xff00) != 0x0100 &&
3262 uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls),
3263 UAC3_TE_INSERTION)) {
3264 build_connector_control(state.mixer, state.map,
3265 &state.oterm, false);
3266 }
3267 }
3268 }
3269
3270 return 0;
3271}
3272
3273static int delegate_notify(struct usb_mixer_interface *mixer, int unitid,
3274 u8 *control, u8 *channel)
3275{
3276 const struct usbmix_connector_map *map = mixer->connector_map;
3277
3278 if (!map)
3279 return unitid;
3280
3281 for (; map->id; map++) {
3282 if (map->id == unitid) {
3283 if (control && map->control)
3284 *control = map->control;
3285 if (channel && map->channel)
3286 *channel = map->channel;
3287 return map->delegated_id;
3288 }
3289 }
3290 return unitid;
3291}
3292
3293void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid)
3294{
3295 struct usb_mixer_elem_list *list;
3296
3297 unitid = delegate_notify(mixer, unitid, NULL, NULL);
3298
3299 for_each_mixer_elem(list, mixer, unitid) {
3300 struct usb_mixer_elem_info *info;
3301
3302 if (!list->is_std_info)
3303 continue;
3304 info = mixer_elem_list_to_info(list);
3305
3306 info->cached = 0;
3307 snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3308 &list->kctl->id);
3309 }
3310}
3311
3312static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer,
3313 struct usb_mixer_elem_list *list)
3314{
3315 struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
3316 static const char * const val_types[] = {
3317 [USB_MIXER_BOOLEAN] = "BOOLEAN",
3318 [USB_MIXER_INV_BOOLEAN] = "INV_BOOLEAN",
3319 [USB_MIXER_S8] = "S8",
3320 [USB_MIXER_U8] = "U8",
3321 [USB_MIXER_S16] = "S16",
3322 [USB_MIXER_U16] = "U16",
3323 [USB_MIXER_S32] = "S32",
3324 [USB_MIXER_U32] = "U32",
3325 [USB_MIXER_BESPOKEN] = "BESPOKEN",
3326 };
3327 snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, "
3328 "channels=%i, type=\"%s\"\n", cval->head.id,
3329 cval->control, cval->cmask, cval->channels,
3330 val_types[cval->val_type]);
3331 snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n",
3332 cval->min, cval->max, cval->dBmin, cval->dBmax);
3333}
3334
3335static void snd_usb_mixer_proc_read(struct snd_info_entry *entry,
3336 struct snd_info_buffer *buffer)
3337{
3338 struct snd_usb_audio *chip = entry->private_data;
3339 struct usb_mixer_interface *mixer;
3340 struct usb_mixer_elem_list *list;
3341 int unitid;
3342
3343 list_for_each_entry(mixer, &chip->mixer_list, list) {
3344 snd_iprintf(buffer,
3345 "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n",
3346 chip->usb_id, mixer_ctrl_intf(mixer),
3347 mixer->ignore_ctl_error);
3348 snd_iprintf(buffer, "Card: %s\n", chip->card->longname);
3349 for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) {
3350 for_each_mixer_elem(list, mixer, unitid) {
3351 snd_iprintf(buffer, " Unit: %i\n", list->id);
3352 if (list->kctl)
3353 snd_iprintf(buffer,
3354 " Control: name=\"%s\", index=%i\n",
3355 list->kctl->id.name,
3356 list->kctl->id.index);
3357 if (list->dump)
3358 list->dump(buffer, list);
3359 }
3360 }
3361 }
3362}
3363
3364static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer,
3365 int attribute, int value, int index)
3366{
3367 struct usb_mixer_elem_list *list;
3368 __u8 unitid = (index >> 8) & 0xff;
3369 __u8 control = (value >> 8) & 0xff;
3370 __u8 channel = value & 0xff;
3371 unsigned int count = 0;
3372
3373 if (channel >= MAX_CHANNELS) {
3374 usb_audio_dbg(mixer->chip,
3375 "%s(): bogus channel number %d\n",
3376 __func__, channel);
3377 return;
3378 }
3379
3380 unitid = delegate_notify(mixer, unitid, &control, &channel);
3381
3382 for_each_mixer_elem(list, mixer, unitid)
3383 count++;
3384
3385 if (count == 0)
3386 return;
3387
3388 for_each_mixer_elem(list, mixer, unitid) {
3389 struct usb_mixer_elem_info *info;
3390
3391 if (!list->kctl)
3392 continue;
3393 if (!list->is_std_info)
3394 continue;
3395
3396 info = mixer_elem_list_to_info(list);
3397 if (count > 1 && info->control != control)
3398 continue;
3399
3400 switch (attribute) {
3401 case UAC2_CS_CUR:
3402
3403 if (channel)
3404 info->cached &= ~(1 << channel);
3405 else
3406 info->cached = 0;
3407
3408 snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
3409 &info->head.kctl->id);
3410 break;
3411
3412 case UAC2_CS_RANGE:
3413
3414 break;
3415
3416 case UAC2_CS_MEM:
3417
3418 break;
3419
3420 default:
3421 usb_audio_dbg(mixer->chip,
3422 "unknown attribute %d in interrupt\n",
3423 attribute);
3424 break;
3425 }
3426 }
3427}
3428
3429static void snd_usb_mixer_interrupt(struct urb *urb)
3430{
3431 struct usb_mixer_interface *mixer = urb->context;
3432 int len = urb->actual_length;
3433 int ustatus = urb->status;
3434
3435 if (ustatus != 0)
3436 goto requeue;
3437
3438 if (mixer->protocol == UAC_VERSION_1) {
3439 struct uac1_status_word *status;
3440
3441 for (status = urb->transfer_buffer;
3442 len >= sizeof(*status);
3443 len -= sizeof(*status), status++) {
3444 dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n",
3445 status->bStatusType,
3446 status->bOriginator);
3447
3448
3449 if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) !=
3450 UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF)
3451 continue;
3452
3453 if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED)
3454 snd_usb_mixer_rc_memory_change(mixer, status->bOriginator);
3455 else
3456 snd_usb_mixer_notify_id(mixer, status->bOriginator);
3457 }
3458 } else {
3459 struct uac2_interrupt_data_msg *msg;
3460
3461 for (msg = urb->transfer_buffer;
3462 len >= sizeof(*msg);
3463 len -= sizeof(*msg), msg++) {
3464
3465 if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) ||
3466 (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP))
3467 continue;
3468
3469 snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute,
3470 le16_to_cpu(msg->wValue),
3471 le16_to_cpu(msg->wIndex));
3472 }
3473 }
3474
3475requeue:
3476 if (ustatus != -ENOENT &&
3477 ustatus != -ECONNRESET &&
3478 ustatus != -ESHUTDOWN) {
3479 urb->dev = mixer->chip->dev;
3480 usb_submit_urb(urb, GFP_ATOMIC);
3481 }
3482}
3483
3484
3485static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer)
3486{
3487 struct usb_endpoint_descriptor *ep;
3488 void *transfer_buffer;
3489 int buffer_length;
3490 unsigned int epnum;
3491
3492
3493 if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1)
3494 return 0;
3495 ep = get_endpoint(mixer->hostif, 0);
3496 if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep))
3497 return 0;
3498
3499 epnum = usb_endpoint_num(ep);
3500 buffer_length = le16_to_cpu(ep->wMaxPacketSize);
3501 transfer_buffer = kmalloc(buffer_length, GFP_KERNEL);
3502 if (!transfer_buffer)
3503 return -ENOMEM;
3504 mixer->urb = usb_alloc_urb(0, GFP_KERNEL);
3505 if (!mixer->urb) {
3506 kfree(transfer_buffer);
3507 return -ENOMEM;
3508 }
3509 usb_fill_int_urb(mixer->urb, mixer->chip->dev,
3510 usb_rcvintpipe(mixer->chip->dev, epnum),
3511 transfer_buffer, buffer_length,
3512 snd_usb_mixer_interrupt, mixer, ep->bInterval);
3513 usb_submit_urb(mixer->urb, GFP_KERNEL);
3514 return 0;
3515}
3516
3517int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif)
3518{
3519 static const struct snd_device_ops dev_ops = {
3520 .dev_free = snd_usb_mixer_dev_free
3521 };
3522 struct usb_mixer_interface *mixer;
3523 int err;
3524
3525 strcpy(chip->card->mixername, "USB Mixer");
3526
3527 mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
3528 if (!mixer)
3529 return -ENOMEM;
3530 mixer->chip = chip;
3531 mixer->ignore_ctl_error = !!(chip->quirk_flags & QUIRK_FLAG_IGNORE_CTL_ERROR);
3532 mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems),
3533 GFP_KERNEL);
3534 if (!mixer->id_elems) {
3535 kfree(mixer);
3536 return -ENOMEM;
3537 }
3538
3539 mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0];
3540 switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) {
3541 case UAC_VERSION_1:
3542 default:
3543 mixer->protocol = UAC_VERSION_1;
3544 break;
3545 case UAC_VERSION_2:
3546 mixer->protocol = UAC_VERSION_2;
3547 break;
3548 case UAC_VERSION_3:
3549 mixer->protocol = UAC_VERSION_3;
3550 break;
3551 }
3552
3553 if (mixer->protocol == UAC_VERSION_3 &&
3554 chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
3555 err = snd_usb_mixer_controls_badd(mixer, ctrlif);
3556 if (err < 0)
3557 goto _error;
3558 } else {
3559 err = snd_usb_mixer_controls(mixer);
3560 if (err < 0)
3561 goto _error;
3562 }
3563
3564 err = snd_usb_mixer_status_create(mixer);
3565 if (err < 0)
3566 goto _error;
3567
3568 err = snd_usb_mixer_apply_create_quirk(mixer);
3569 if (err < 0)
3570 goto _error;
3571
3572 err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops);
3573 if (err < 0)
3574 goto _error;
3575
3576 if (list_empty(&chip->mixer_list))
3577 snd_card_ro_proc_new(chip->card, "usbmixer", chip,
3578 snd_usb_mixer_proc_read);
3579
3580 list_add(&mixer->list, &chip->mixer_list);
3581 return 0;
3582
3583_error:
3584 snd_usb_mixer_free(mixer);
3585 return err;
3586}
3587
3588void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer)
3589{
3590 if (mixer->disconnected)
3591 return;
3592 if (mixer->urb)
3593 usb_kill_urb(mixer->urb);
3594 if (mixer->rc_urb)
3595 usb_kill_urb(mixer->rc_urb);
3596 if (mixer->private_free)
3597 mixer->private_free(mixer);
3598 mixer->disconnected = true;
3599}
3600
3601#ifdef CONFIG_PM
3602
3603static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer)
3604{
3605 usb_kill_urb(mixer->urb);
3606 usb_kill_urb(mixer->rc_urb);
3607}
3608
3609static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer)
3610{
3611 int err;
3612
3613 if (mixer->urb) {
3614 err = usb_submit_urb(mixer->urb, GFP_NOIO);
3615 if (err < 0)
3616 return err;
3617 }
3618
3619 return 0;
3620}
3621
3622int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer)
3623{
3624 snd_usb_mixer_inactivate(mixer);
3625 if (mixer->private_suspend)
3626 mixer->private_suspend(mixer);
3627 return 0;
3628}
3629
3630static int restore_mixer_value(struct usb_mixer_elem_list *list)
3631{
3632 struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
3633 int c, err, idx;
3634
3635 if (cval->val_type == USB_MIXER_BESPOKEN)
3636 return 0;
3637
3638 if (cval->cmask) {
3639 idx = 0;
3640 for (c = 0; c < MAX_CHANNELS; c++) {
3641 if (!(cval->cmask & (1 << c)))
3642 continue;
3643 if (cval->cached & (1 << (c + 1))) {
3644 err = snd_usb_set_cur_mix_value(cval, c + 1, idx,
3645 cval->cache_val[idx]);
3646 if (err < 0)
3647 return err;
3648 }
3649 idx++;
3650 }
3651 } else {
3652
3653 if (cval->cached) {
3654 err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val);
3655 if (err < 0)
3656 return err;
3657 }
3658 }
3659
3660 return 0;
3661}
3662
3663int snd_usb_mixer_resume(struct usb_mixer_interface *mixer)
3664{
3665 struct usb_mixer_elem_list *list;
3666 int id, err;
3667
3668
3669 for (id = 0; id < MAX_ID_ELEMS; id++) {
3670 for_each_mixer_elem(list, mixer, id) {
3671 if (list->resume) {
3672 err = list->resume(list);
3673 if (err < 0)
3674 return err;
3675 }
3676 }
3677 }
3678
3679 snd_usb_mixer_resume_quirk(mixer);
3680
3681 return snd_usb_mixer_activate(mixer);
3682}
3683#endif
3684
3685void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
3686 struct usb_mixer_interface *mixer,
3687 int unitid)
3688{
3689 list->mixer = mixer;
3690 list->id = unitid;
3691 list->dump = snd_usb_mixer_dump_cval;
3692#ifdef CONFIG_PM
3693 list->resume = restore_mixer_value;
3694#endif
3695}
3696