xref: /linux/sound/usb/mixer_quirks.c (revision b7019ac550eb3916f34d79db583e9b7ea2524afa)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   USB Audio Driver for ALSA
4  *
5  *   Quirks and vendor-specific extensions for mixer interfaces
6  *
7  *   Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
8  *
9  *   Many codes borrowed from audio.c by
10  *	    Alan Cox (alan@lxorguk.ukuu.org.uk)
11  *	    Thomas Sailer (sailer@ife.ee.ethz.ch)
12  *
13  *   Audio Advantage Micro II support added by:
14  *	    Przemek Rudy (prudy1@o2.pl)
15  */
16 
17 #include <linux/hid.h>
18 #include <linux/init.h>
19 #include <linux/math64.h>
20 #include <linux/slab.h>
21 #include <linux/usb.h>
22 #include <linux/usb/audio.h>
23 
24 #include <sound/asoundef.h>
25 #include <sound/core.h>
26 #include <sound/control.h>
27 #include <sound/hwdep.h>
28 #include <sound/info.h>
29 #include <sound/tlv.h>
30 
31 #include "usbaudio.h"
32 #include "mixer.h"
33 #include "mixer_quirks.h"
34 #include "mixer_scarlett.h"
35 #include "mixer_us16x08.h"
36 #include "helper.h"
37 
38 struct std_mono_table {
39 	unsigned int unitid, control, cmask;
40 	int val_type;
41 	const char *name;
42 	snd_kcontrol_tlv_rw_t *tlv_callback;
43 };
44 
45 /* This function allows for the creation of standard UAC controls.
46  * See the quirks for M-Audio FTUs or Ebox-44.
47  * If you don't want to set a TLV callback pass NULL.
48  *
49  * Since there doesn't seem to be a devices that needs a multichannel
50  * version, we keep it mono for simplicity.
51  */
52 static int snd_create_std_mono_ctl_offset(struct usb_mixer_interface *mixer,
53 				unsigned int unitid,
54 				unsigned int control,
55 				unsigned int cmask,
56 				int val_type,
57 				unsigned int idx_off,
58 				const char *name,
59 				snd_kcontrol_tlv_rw_t *tlv_callback)
60 {
61 	struct usb_mixer_elem_info *cval;
62 	struct snd_kcontrol *kctl;
63 
64 	cval = kzalloc(sizeof(*cval), GFP_KERNEL);
65 	if (!cval)
66 		return -ENOMEM;
67 
68 	snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid);
69 	cval->val_type = val_type;
70 	cval->channels = 1;
71 	cval->control = control;
72 	cval->cmask = cmask;
73 	cval->idx_off = idx_off;
74 
75 	/* get_min_max() is called only for integer volumes later,
76 	 * so provide a short-cut for booleans */
77 	cval->min = 0;
78 	cval->max = 1;
79 	cval->res = 0;
80 	cval->dBmin = 0;
81 	cval->dBmax = 0;
82 
83 	/* Create control */
84 	kctl = snd_ctl_new1(snd_usb_feature_unit_ctl, cval);
85 	if (!kctl) {
86 		kfree(cval);
87 		return -ENOMEM;
88 	}
89 
90 	/* Set name */
91 	snprintf(kctl->id.name, sizeof(kctl->id.name), name);
92 	kctl->private_free = snd_usb_mixer_elem_free;
93 
94 	/* set TLV */
95 	if (tlv_callback) {
96 		kctl->tlv.c = tlv_callback;
97 		kctl->vd[0].access |=
98 			SNDRV_CTL_ELEM_ACCESS_TLV_READ |
99 			SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
100 	}
101 	/* Add control to mixer */
102 	return snd_usb_mixer_add_control(&cval->head, kctl);
103 }
104 
105 static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer,
106 				unsigned int unitid,
107 				unsigned int control,
108 				unsigned int cmask,
109 				int val_type,
110 				const char *name,
111 				snd_kcontrol_tlv_rw_t *tlv_callback)
112 {
113 	return snd_create_std_mono_ctl_offset(mixer, unitid, control, cmask,
114 		val_type, 0 /* Offset */, name, tlv_callback);
115 }
116 
117 /*
118  * Create a set of standard UAC controls from a table
119  */
120 static int snd_create_std_mono_table(struct usb_mixer_interface *mixer,
121 				struct std_mono_table *t)
122 {
123 	int err;
124 
125 	while (t->name != NULL) {
126 		err = snd_create_std_mono_ctl(mixer, t->unitid, t->control,
127 				t->cmask, t->val_type, t->name, t->tlv_callback);
128 		if (err < 0)
129 			return err;
130 		t++;
131 	}
132 
133 	return 0;
134 }
135 
136 static int add_single_ctl_with_resume(struct usb_mixer_interface *mixer,
137 				      int id,
138 				      usb_mixer_elem_resume_func_t resume,
139 				      const struct snd_kcontrol_new *knew,
140 				      struct usb_mixer_elem_list **listp)
141 {
142 	struct usb_mixer_elem_list *list;
143 	struct snd_kcontrol *kctl;
144 
145 	list = kzalloc(sizeof(*list), GFP_KERNEL);
146 	if (!list)
147 		return -ENOMEM;
148 	if (listp)
149 		*listp = list;
150 	list->mixer = mixer;
151 	list->id = id;
152 	list->resume = resume;
153 	kctl = snd_ctl_new1(knew, list);
154 	if (!kctl) {
155 		kfree(list);
156 		return -ENOMEM;
157 	}
158 	kctl->private_free = snd_usb_mixer_elem_free;
159 	return snd_usb_mixer_add_control(list, kctl);
160 }
161 
162 /*
163  * Sound Blaster remote control configuration
164  *
165  * format of remote control data:
166  * Extigy:       xx 00
167  * Audigy 2 NX:  06 80 xx 00 00 00
168  * Live! 24-bit: 06 80 xx yy 22 83
169  */
170 static const struct rc_config {
171 	u32 usb_id;
172 	u8  offset;
173 	u8  length;
174 	u8  packet_length;
175 	u8  min_packet_length; /* minimum accepted length of the URB result */
176 	u8  mute_mixer_id;
177 	u32 mute_code;
178 } rc_configs[] = {
179 	{ USB_ID(0x041e, 0x3000), 0, 1, 2, 1,  18, 0x0013 }, /* Extigy       */
180 	{ USB_ID(0x041e, 0x3020), 2, 1, 6, 6,  18, 0x0013 }, /* Audigy 2 NX  */
181 	{ USB_ID(0x041e, 0x3040), 2, 2, 6, 6,  2,  0x6e91 }, /* Live! 24-bit */
182 	{ USB_ID(0x041e, 0x3042), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 */
183 	{ USB_ID(0x041e, 0x30df), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
184 	{ USB_ID(0x041e, 0x3237), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
185 	{ USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */
186 };
187 
188 static void snd_usb_soundblaster_remote_complete(struct urb *urb)
189 {
190 	struct usb_mixer_interface *mixer = urb->context;
191 	const struct rc_config *rc = mixer->rc_cfg;
192 	u32 code;
193 
194 	if (urb->status < 0 || urb->actual_length < rc->min_packet_length)
195 		return;
196 
197 	code = mixer->rc_buffer[rc->offset];
198 	if (rc->length == 2)
199 		code |= mixer->rc_buffer[rc->offset + 1] << 8;
200 
201 	/* the Mute button actually changes the mixer control */
202 	if (code == rc->mute_code)
203 		snd_usb_mixer_notify_id(mixer, rc->mute_mixer_id);
204 	mixer->rc_code = code;
205 	wmb();
206 	wake_up(&mixer->rc_waitq);
207 }
208 
209 static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
210 				     long count, loff_t *offset)
211 {
212 	struct usb_mixer_interface *mixer = hw->private_data;
213 	int err;
214 	u32 rc_code;
215 
216 	if (count != 1 && count != 4)
217 		return -EINVAL;
218 	err = wait_event_interruptible(mixer->rc_waitq,
219 				       (rc_code = xchg(&mixer->rc_code, 0)) != 0);
220 	if (err == 0) {
221 		if (count == 1)
222 			err = put_user(rc_code, buf);
223 		else
224 			err = put_user(rc_code, (u32 __user *)buf);
225 	}
226 	return err < 0 ? err : count;
227 }
228 
229 static __poll_t snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file,
230 					    poll_table *wait)
231 {
232 	struct usb_mixer_interface *mixer = hw->private_data;
233 
234 	poll_wait(file, &mixer->rc_waitq, wait);
235 	return mixer->rc_code ? EPOLLIN | EPOLLRDNORM : 0;
236 }
237 
238 static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
239 {
240 	struct snd_hwdep *hwdep;
241 	int err, len, i;
242 
243 	for (i = 0; i < ARRAY_SIZE(rc_configs); ++i)
244 		if (rc_configs[i].usb_id == mixer->chip->usb_id)
245 			break;
246 	if (i >= ARRAY_SIZE(rc_configs))
247 		return 0;
248 	mixer->rc_cfg = &rc_configs[i];
249 
250 	len = mixer->rc_cfg->packet_length;
251 
252 	init_waitqueue_head(&mixer->rc_waitq);
253 	err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep);
254 	if (err < 0)
255 		return err;
256 	snprintf(hwdep->name, sizeof(hwdep->name),
257 		 "%s remote control", mixer->chip->card->shortname);
258 	hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC;
259 	hwdep->private_data = mixer;
260 	hwdep->ops.read = snd_usb_sbrc_hwdep_read;
261 	hwdep->ops.poll = snd_usb_sbrc_hwdep_poll;
262 	hwdep->exclusive = 1;
263 
264 	mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL);
265 	if (!mixer->rc_urb)
266 		return -ENOMEM;
267 	mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL);
268 	if (!mixer->rc_setup_packet) {
269 		usb_free_urb(mixer->rc_urb);
270 		mixer->rc_urb = NULL;
271 		return -ENOMEM;
272 	}
273 	mixer->rc_setup_packet->bRequestType =
274 		USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
275 	mixer->rc_setup_packet->bRequest = UAC_GET_MEM;
276 	mixer->rc_setup_packet->wValue = cpu_to_le16(0);
277 	mixer->rc_setup_packet->wIndex = cpu_to_le16(0);
278 	mixer->rc_setup_packet->wLength = cpu_to_le16(len);
279 	usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev,
280 			     usb_rcvctrlpipe(mixer->chip->dev, 0),
281 			     (u8*)mixer->rc_setup_packet, mixer->rc_buffer, len,
282 			     snd_usb_soundblaster_remote_complete, mixer);
283 	return 0;
284 }
285 
286 #define snd_audigy2nx_led_info		snd_ctl_boolean_mono_info
287 
288 static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
289 {
290 	ucontrol->value.integer.value[0] = kcontrol->private_value >> 8;
291 	return 0;
292 }
293 
294 static int snd_audigy2nx_led_update(struct usb_mixer_interface *mixer,
295 				    int value, int index)
296 {
297 	struct snd_usb_audio *chip = mixer->chip;
298 	int err;
299 
300 	err = snd_usb_lock_shutdown(chip);
301 	if (err < 0)
302 		return err;
303 
304 	if (chip->usb_id == USB_ID(0x041e, 0x3042))
305 		err = snd_usb_ctl_msg(chip->dev,
306 			      usb_sndctrlpipe(chip->dev, 0), 0x24,
307 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
308 			      !value, 0, NULL, 0);
309 	/* USB X-Fi S51 Pro */
310 	if (chip->usb_id == USB_ID(0x041e, 0x30df))
311 		err = snd_usb_ctl_msg(chip->dev,
312 			      usb_sndctrlpipe(chip->dev, 0), 0x24,
313 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
314 			      !value, 0, NULL, 0);
315 	else
316 		err = snd_usb_ctl_msg(chip->dev,
317 			      usb_sndctrlpipe(chip->dev, 0), 0x24,
318 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
319 			      value, index + 2, NULL, 0);
320 	snd_usb_unlock_shutdown(chip);
321 	return err;
322 }
323 
324 static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol,
325 				 struct snd_ctl_elem_value *ucontrol)
326 {
327 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
328 	struct usb_mixer_interface *mixer = list->mixer;
329 	int index = kcontrol->private_value & 0xff;
330 	unsigned int value = ucontrol->value.integer.value[0];
331 	int old_value = kcontrol->private_value >> 8;
332 	int err;
333 
334 	if (value > 1)
335 		return -EINVAL;
336 	if (value == old_value)
337 		return 0;
338 	kcontrol->private_value = (value << 8) | index;
339 	err = snd_audigy2nx_led_update(mixer, value, index);
340 	return err < 0 ? err : 1;
341 }
342 
343 static int snd_audigy2nx_led_resume(struct usb_mixer_elem_list *list)
344 {
345 	int priv_value = list->kctl->private_value;
346 
347 	return snd_audigy2nx_led_update(list->mixer, priv_value >> 8,
348 					priv_value & 0xff);
349 }
350 
351 /* name and private_value are set dynamically */
352 static const struct snd_kcontrol_new snd_audigy2nx_control = {
353 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
354 	.info = snd_audigy2nx_led_info,
355 	.get = snd_audigy2nx_led_get,
356 	.put = snd_audigy2nx_led_put,
357 };
358 
359 static const char * const snd_audigy2nx_led_names[] = {
360 	"CMSS LED Switch",
361 	"Power LED Switch",
362 	"Dolby Digital LED Switch",
363 };
364 
365 static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
366 {
367 	int i, err;
368 
369 	for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_led_names); ++i) {
370 		struct snd_kcontrol_new knew;
371 
372 		/* USB X-Fi S51 doesn't have a CMSS LED */
373 		if ((mixer->chip->usb_id == USB_ID(0x041e, 0x3042)) && i == 0)
374 			continue;
375 		/* USB X-Fi S51 Pro doesn't have one either */
376 		if ((mixer->chip->usb_id == USB_ID(0x041e, 0x30df)) && i == 0)
377 			continue;
378 		if (i > 1 && /* Live24ext has 2 LEDs only */
379 			(mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
380 			 mixer->chip->usb_id == USB_ID(0x041e, 0x3042) ||
381 			 mixer->chip->usb_id == USB_ID(0x041e, 0x30df) ||
382 			 mixer->chip->usb_id == USB_ID(0x041e, 0x3048)))
383 			break;
384 
385 		knew = snd_audigy2nx_control;
386 		knew.name = snd_audigy2nx_led_names[i];
387 		knew.private_value = (1 << 8) | i; /* LED on as default */
388 		err = add_single_ctl_with_resume(mixer, 0,
389 						 snd_audigy2nx_led_resume,
390 						 &knew, NULL);
391 		if (err < 0)
392 			return err;
393 	}
394 	return 0;
395 }
396 
397 static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
398 				    struct snd_info_buffer *buffer)
399 {
400 	static const struct sb_jack {
401 		int unitid;
402 		const char *name;
403 	}  jacks_audigy2nx[] = {
404 		{4,  "dig in "},
405 		{7,  "line in"},
406 		{19, "spk out"},
407 		{20, "hph out"},
408 		{-1, NULL}
409 	}, jacks_live24ext[] = {
410 		{4,  "line in"}, /* &1=Line, &2=Mic*/
411 		{3,  "hph out"}, /* headphones */
412 		{0,  "RC     "}, /* last command, 6 bytes see rc_config above */
413 		{-1, NULL}
414 	};
415 	const struct sb_jack *jacks;
416 	struct usb_mixer_interface *mixer = entry->private_data;
417 	int i, err;
418 	u8 buf[3];
419 
420 	snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname);
421 	if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020))
422 		jacks = jacks_audigy2nx;
423 	else if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
424 		 mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
425 		jacks = jacks_live24ext;
426 	else
427 		return;
428 
429 	for (i = 0; jacks[i].name; ++i) {
430 		snd_iprintf(buffer, "%s: ", jacks[i].name);
431 		err = snd_usb_lock_shutdown(mixer->chip);
432 		if (err < 0)
433 			return;
434 		err = snd_usb_ctl_msg(mixer->chip->dev,
435 				      usb_rcvctrlpipe(mixer->chip->dev, 0),
436 				      UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
437 				      USB_RECIP_INTERFACE, 0,
438 				      jacks[i].unitid << 8, buf, 3);
439 		snd_usb_unlock_shutdown(mixer->chip);
440 		if (err == 3 && (buf[0] == 3 || buf[0] == 6))
441 			snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]);
442 		else
443 			snd_iprintf(buffer, "?\n");
444 	}
445 }
446 
447 /* EMU0204 */
448 static int snd_emu0204_ch_switch_info(struct snd_kcontrol *kcontrol,
449 				      struct snd_ctl_elem_info *uinfo)
450 {
451 	static const char * const texts[2] = {"1/2", "3/4"};
452 
453 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
454 }
455 
456 static int snd_emu0204_ch_switch_get(struct snd_kcontrol *kcontrol,
457 				     struct snd_ctl_elem_value *ucontrol)
458 {
459 	ucontrol->value.enumerated.item[0] = kcontrol->private_value;
460 	return 0;
461 }
462 
463 static int snd_emu0204_ch_switch_update(struct usb_mixer_interface *mixer,
464 					int value)
465 {
466 	struct snd_usb_audio *chip = mixer->chip;
467 	int err;
468 	unsigned char buf[2];
469 
470 	err = snd_usb_lock_shutdown(chip);
471 	if (err < 0)
472 		return err;
473 
474 	buf[0] = 0x01;
475 	buf[1] = value ? 0x02 : 0x01;
476 	err = snd_usb_ctl_msg(chip->dev,
477 		      usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR,
478 		      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
479 		      0x0400, 0x0e00, buf, 2);
480 	snd_usb_unlock_shutdown(chip);
481 	return err;
482 }
483 
484 static int snd_emu0204_ch_switch_put(struct snd_kcontrol *kcontrol,
485 				     struct snd_ctl_elem_value *ucontrol)
486 {
487 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
488 	struct usb_mixer_interface *mixer = list->mixer;
489 	unsigned int value = ucontrol->value.enumerated.item[0];
490 	int err;
491 
492 	if (value > 1)
493 		return -EINVAL;
494 
495 	if (value == kcontrol->private_value)
496 		return 0;
497 
498 	kcontrol->private_value = value;
499 	err = snd_emu0204_ch_switch_update(mixer, value);
500 	return err < 0 ? err : 1;
501 }
502 
503 static int snd_emu0204_ch_switch_resume(struct usb_mixer_elem_list *list)
504 {
505 	return snd_emu0204_ch_switch_update(list->mixer,
506 					    list->kctl->private_value);
507 }
508 
509 static struct snd_kcontrol_new snd_emu0204_control = {
510 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
511 	.name = "Front Jack Channels",
512 	.info = snd_emu0204_ch_switch_info,
513 	.get = snd_emu0204_ch_switch_get,
514 	.put = snd_emu0204_ch_switch_put,
515 	.private_value = 0,
516 };
517 
518 static int snd_emu0204_controls_create(struct usb_mixer_interface *mixer)
519 {
520 	return add_single_ctl_with_resume(mixer, 0,
521 					  snd_emu0204_ch_switch_resume,
522 					  &snd_emu0204_control, NULL);
523 }
524 
525 /* ASUS Xonar U1 / U3 controls */
526 
527 static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
528 				   struct snd_ctl_elem_value *ucontrol)
529 {
530 	ucontrol->value.integer.value[0] = !!(kcontrol->private_value & 0x02);
531 	return 0;
532 }
533 
534 static int snd_xonar_u1_switch_update(struct usb_mixer_interface *mixer,
535 				      unsigned char status)
536 {
537 	struct snd_usb_audio *chip = mixer->chip;
538 	int err;
539 
540 	err = snd_usb_lock_shutdown(chip);
541 	if (err < 0)
542 		return err;
543 	err = snd_usb_ctl_msg(chip->dev,
544 			      usb_sndctrlpipe(chip->dev, 0), 0x08,
545 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
546 			      50, 0, &status, 1);
547 	snd_usb_unlock_shutdown(chip);
548 	return err;
549 }
550 
551 static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol,
552 				   struct snd_ctl_elem_value *ucontrol)
553 {
554 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
555 	u8 old_status, new_status;
556 	int err;
557 
558 	old_status = kcontrol->private_value;
559 	if (ucontrol->value.integer.value[0])
560 		new_status = old_status | 0x02;
561 	else
562 		new_status = old_status & ~0x02;
563 	if (new_status == old_status)
564 		return 0;
565 
566 	kcontrol->private_value = new_status;
567 	err = snd_xonar_u1_switch_update(list->mixer, new_status);
568 	return err < 0 ? err : 1;
569 }
570 
571 static int snd_xonar_u1_switch_resume(struct usb_mixer_elem_list *list)
572 {
573 	return snd_xonar_u1_switch_update(list->mixer,
574 					  list->kctl->private_value);
575 }
576 
577 static struct snd_kcontrol_new snd_xonar_u1_output_switch = {
578 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
579 	.name = "Digital Playback Switch",
580 	.info = snd_ctl_boolean_mono_info,
581 	.get = snd_xonar_u1_switch_get,
582 	.put = snd_xonar_u1_switch_put,
583 	.private_value = 0x05,
584 };
585 
586 static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer)
587 {
588 	return add_single_ctl_with_resume(mixer, 0,
589 					  snd_xonar_u1_switch_resume,
590 					  &snd_xonar_u1_output_switch, NULL);
591 }
592 
593 /* Digidesign Mbox 1 clock source switch (internal/spdif) */
594 
595 static int snd_mbox1_switch_get(struct snd_kcontrol *kctl,
596 				struct snd_ctl_elem_value *ucontrol)
597 {
598 	ucontrol->value.enumerated.item[0] = kctl->private_value;
599 	return 0;
600 }
601 
602 static int snd_mbox1_switch_update(struct usb_mixer_interface *mixer, int val)
603 {
604 	struct snd_usb_audio *chip = mixer->chip;
605 	int err;
606 	unsigned char buff[3];
607 
608 	err = snd_usb_lock_shutdown(chip);
609 	if (err < 0)
610 		return err;
611 
612 	/* Prepare for magic command to toggle clock source */
613 	err = snd_usb_ctl_msg(chip->dev,
614 				usb_rcvctrlpipe(chip->dev, 0), 0x81,
615 				USB_DIR_IN |
616 				USB_TYPE_CLASS |
617 				USB_RECIP_INTERFACE, 0x00, 0x500, buff, 1);
618 	if (err < 0)
619 		goto err;
620 	err = snd_usb_ctl_msg(chip->dev,
621 				usb_rcvctrlpipe(chip->dev, 0), 0x81,
622 				USB_DIR_IN |
623 				USB_TYPE_CLASS |
624 				USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
625 	if (err < 0)
626 		goto err;
627 
628 	/* 2 possibilities:	Internal    -> send sample rate
629 	 *			S/PDIF sync -> send zeroes
630 	 * NB: Sample rate locked to 48kHz on purpose to
631 	 *     prevent user from resetting the sample rate
632 	 *     while S/PDIF sync is enabled and confusing
633 	 *     this configuration.
634 	 */
635 	if (val == 0) {
636 		buff[0] = 0x80;
637 		buff[1] = 0xbb;
638 		buff[2] = 0x00;
639 	} else {
640 		buff[0] = buff[1] = buff[2] = 0x00;
641 	}
642 
643 	/* Send the magic command to toggle the clock source */
644 	err = snd_usb_ctl_msg(chip->dev,
645 				usb_sndctrlpipe(chip->dev, 0), 0x1,
646 				USB_TYPE_CLASS |
647 				USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
648 	if (err < 0)
649 		goto err;
650 	err = snd_usb_ctl_msg(chip->dev,
651 				usb_rcvctrlpipe(chip->dev, 0), 0x81,
652 				USB_DIR_IN |
653 				USB_TYPE_CLASS |
654 				USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3);
655 	if (err < 0)
656 		goto err;
657 	err = snd_usb_ctl_msg(chip->dev,
658 				usb_rcvctrlpipe(chip->dev, 0), 0x81,
659 				USB_DIR_IN |
660 				USB_TYPE_CLASS |
661 				USB_RECIP_ENDPOINT, 0x100, 0x2, buff, 3);
662 	if (err < 0)
663 		goto err;
664 
665 err:
666 	snd_usb_unlock_shutdown(chip);
667 	return err;
668 }
669 
670 static int snd_mbox1_switch_put(struct snd_kcontrol *kctl,
671 				struct snd_ctl_elem_value *ucontrol)
672 {
673 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
674 	struct usb_mixer_interface *mixer = list->mixer;
675 	int err;
676 	bool cur_val, new_val;
677 
678 	cur_val = kctl->private_value;
679 	new_val = ucontrol->value.enumerated.item[0];
680 	if (cur_val == new_val)
681 		return 0;
682 
683 	kctl->private_value = new_val;
684 	err = snd_mbox1_switch_update(mixer, new_val);
685 	return err < 0 ? err : 1;
686 }
687 
688 static int snd_mbox1_switch_info(struct snd_kcontrol *kcontrol,
689 				 struct snd_ctl_elem_info *uinfo)
690 {
691 	static const char *const texts[2] = {
692 		"Internal",
693 		"S/PDIF"
694 	};
695 
696 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
697 }
698 
699 static int snd_mbox1_switch_resume(struct usb_mixer_elem_list *list)
700 {
701 	return snd_mbox1_switch_update(list->mixer, list->kctl->private_value);
702 }
703 
704 static struct snd_kcontrol_new snd_mbox1_switch = {
705 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
706 	.name = "Clock Source",
707 	.index = 0,
708 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
709 	.info = snd_mbox1_switch_info,
710 	.get = snd_mbox1_switch_get,
711 	.put = snd_mbox1_switch_put,
712 	.private_value = 0
713 };
714 
715 static int snd_mbox1_create_sync_switch(struct usb_mixer_interface *mixer)
716 {
717 	return add_single_ctl_with_resume(mixer, 0,
718 					  snd_mbox1_switch_resume,
719 					  &snd_mbox1_switch, NULL);
720 }
721 
722 /* Native Instruments device quirks */
723 
724 #define _MAKE_NI_CONTROL(bRequest,wIndex) ((bRequest) << 16 | (wIndex))
725 
726 static int snd_ni_control_init_val(struct usb_mixer_interface *mixer,
727 				   struct snd_kcontrol *kctl)
728 {
729 	struct usb_device *dev = mixer->chip->dev;
730 	unsigned int pval = kctl->private_value;
731 	u8 value;
732 	int err;
733 
734 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
735 			      (pval >> 16) & 0xff,
736 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
737 			      0, pval & 0xffff, &value, 1);
738 	if (err < 0) {
739 		dev_err(&dev->dev,
740 			"unable to issue vendor read request (ret = %d)", err);
741 		return err;
742 	}
743 
744 	kctl->private_value |= (value << 24);
745 	return 0;
746 }
747 
748 static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol,
749 					     struct snd_ctl_elem_value *ucontrol)
750 {
751 	ucontrol->value.integer.value[0] = kcontrol->private_value >> 24;
752 	return 0;
753 }
754 
755 static int snd_ni_update_cur_val(struct usb_mixer_elem_list *list)
756 {
757 	struct snd_usb_audio *chip = list->mixer->chip;
758 	unsigned int pval = list->kctl->private_value;
759 	int err;
760 
761 	err = snd_usb_lock_shutdown(chip);
762 	if (err < 0)
763 		return err;
764 	err = usb_control_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0),
765 			      (pval >> 16) & 0xff,
766 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
767 			      pval >> 24, pval & 0xffff, NULL, 0, 1000);
768 	snd_usb_unlock_shutdown(chip);
769 	return err;
770 }
771 
772 static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
773 					     struct snd_ctl_elem_value *ucontrol)
774 {
775 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
776 	u8 oldval = (kcontrol->private_value >> 24) & 0xff;
777 	u8 newval = ucontrol->value.integer.value[0];
778 	int err;
779 
780 	if (oldval == newval)
781 		return 0;
782 
783 	kcontrol->private_value &= ~(0xff << 24);
784 	kcontrol->private_value |= (unsigned int)newval << 24;
785 	err = snd_ni_update_cur_val(list);
786 	return err < 0 ? err : 1;
787 }
788 
789 static struct snd_kcontrol_new snd_nativeinstruments_ta6_mixers[] = {
790 	{
791 		.name = "Direct Thru Channel A",
792 		.private_value = _MAKE_NI_CONTROL(0x01, 0x03),
793 	},
794 	{
795 		.name = "Direct Thru Channel B",
796 		.private_value = _MAKE_NI_CONTROL(0x01, 0x05),
797 	},
798 	{
799 		.name = "Phono Input Channel A",
800 		.private_value = _MAKE_NI_CONTROL(0x02, 0x03),
801 	},
802 	{
803 		.name = "Phono Input Channel B",
804 		.private_value = _MAKE_NI_CONTROL(0x02, 0x05),
805 	},
806 };
807 
808 static struct snd_kcontrol_new snd_nativeinstruments_ta10_mixers[] = {
809 	{
810 		.name = "Direct Thru Channel A",
811 		.private_value = _MAKE_NI_CONTROL(0x01, 0x03),
812 	},
813 	{
814 		.name = "Direct Thru Channel B",
815 		.private_value = _MAKE_NI_CONTROL(0x01, 0x05),
816 	},
817 	{
818 		.name = "Direct Thru Channel C",
819 		.private_value = _MAKE_NI_CONTROL(0x01, 0x07),
820 	},
821 	{
822 		.name = "Direct Thru Channel D",
823 		.private_value = _MAKE_NI_CONTROL(0x01, 0x09),
824 	},
825 	{
826 		.name = "Phono Input Channel A",
827 		.private_value = _MAKE_NI_CONTROL(0x02, 0x03),
828 	},
829 	{
830 		.name = "Phono Input Channel B",
831 		.private_value = _MAKE_NI_CONTROL(0x02, 0x05),
832 	},
833 	{
834 		.name = "Phono Input Channel C",
835 		.private_value = _MAKE_NI_CONTROL(0x02, 0x07),
836 	},
837 	{
838 		.name = "Phono Input Channel D",
839 		.private_value = _MAKE_NI_CONTROL(0x02, 0x09),
840 	},
841 };
842 
843 static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer,
844 					      const struct snd_kcontrol_new *kc,
845 					      unsigned int count)
846 {
847 	int i, err = 0;
848 	struct snd_kcontrol_new template = {
849 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
850 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
851 		.get = snd_nativeinstruments_control_get,
852 		.put = snd_nativeinstruments_control_put,
853 		.info = snd_ctl_boolean_mono_info,
854 	};
855 
856 	for (i = 0; i < count; i++) {
857 		struct usb_mixer_elem_list *list;
858 
859 		template.name = kc[i].name;
860 		template.private_value = kc[i].private_value;
861 
862 		err = add_single_ctl_with_resume(mixer, 0,
863 						 snd_ni_update_cur_val,
864 						 &template, &list);
865 		if (err < 0)
866 			break;
867 		snd_ni_control_init_val(mixer, list->kctl);
868 	}
869 
870 	return err;
871 }
872 
873 /* M-Audio FastTrack Ultra quirks */
874 /* FTU Effect switch (also used by C400/C600) */
875 static int snd_ftu_eff_switch_info(struct snd_kcontrol *kcontrol,
876 					struct snd_ctl_elem_info *uinfo)
877 {
878 	static const char *const texts[8] = {
879 		"Room 1", "Room 2", "Room 3", "Hall 1",
880 		"Hall 2", "Plate", "Delay", "Echo"
881 	};
882 
883 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
884 }
885 
886 static int snd_ftu_eff_switch_init(struct usb_mixer_interface *mixer,
887 				   struct snd_kcontrol *kctl)
888 {
889 	struct usb_device *dev = mixer->chip->dev;
890 	unsigned int pval = kctl->private_value;
891 	int err;
892 	unsigned char value[2];
893 
894 	value[0] = 0x00;
895 	value[1] = 0x00;
896 
897 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR,
898 			      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
899 			      pval & 0xff00,
900 			      snd_usb_ctrl_intf(mixer->chip) | ((pval & 0xff) << 8),
901 			      value, 2);
902 	if (err < 0)
903 		return err;
904 
905 	kctl->private_value |= value[0] << 24;
906 	return 0;
907 }
908 
909 static int snd_ftu_eff_switch_get(struct snd_kcontrol *kctl,
910 					struct snd_ctl_elem_value *ucontrol)
911 {
912 	ucontrol->value.enumerated.item[0] = kctl->private_value >> 24;
913 	return 0;
914 }
915 
916 static int snd_ftu_eff_switch_update(struct usb_mixer_elem_list *list)
917 {
918 	struct snd_usb_audio *chip = list->mixer->chip;
919 	unsigned int pval = list->kctl->private_value;
920 	unsigned char value[2];
921 	int err;
922 
923 	value[0] = pval >> 24;
924 	value[1] = 0;
925 
926 	err = snd_usb_lock_shutdown(chip);
927 	if (err < 0)
928 		return err;
929 	err = snd_usb_ctl_msg(chip->dev,
930 			      usb_sndctrlpipe(chip->dev, 0),
931 			      UAC_SET_CUR,
932 			      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
933 			      pval & 0xff00,
934 			      snd_usb_ctrl_intf(chip) | ((pval & 0xff) << 8),
935 			      value, 2);
936 	snd_usb_unlock_shutdown(chip);
937 	return err;
938 }
939 
940 static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl,
941 					struct snd_ctl_elem_value *ucontrol)
942 {
943 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl);
944 	unsigned int pval = list->kctl->private_value;
945 	int cur_val, err, new_val;
946 
947 	cur_val = pval >> 24;
948 	new_val = ucontrol->value.enumerated.item[0];
949 	if (cur_val == new_val)
950 		return 0;
951 
952 	kctl->private_value &= ~(0xff << 24);
953 	kctl->private_value |= new_val << 24;
954 	err = snd_ftu_eff_switch_update(list);
955 	return err < 0 ? err : 1;
956 }
957 
958 static int snd_ftu_create_effect_switch(struct usb_mixer_interface *mixer,
959 	int validx, int bUnitID)
960 {
961 	static struct snd_kcontrol_new template = {
962 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
963 		.name = "Effect Program Switch",
964 		.index = 0,
965 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
966 		.info = snd_ftu_eff_switch_info,
967 		.get = snd_ftu_eff_switch_get,
968 		.put = snd_ftu_eff_switch_put
969 	};
970 	struct usb_mixer_elem_list *list;
971 	int err;
972 
973 	err = add_single_ctl_with_resume(mixer, bUnitID,
974 					 snd_ftu_eff_switch_update,
975 					 &template, &list);
976 	if (err < 0)
977 		return err;
978 	list->kctl->private_value = (validx << 8) | bUnitID;
979 	snd_ftu_eff_switch_init(mixer, list->kctl);
980 	return 0;
981 }
982 
983 /* Create volume controls for FTU devices*/
984 static int snd_ftu_create_volume_ctls(struct usb_mixer_interface *mixer)
985 {
986 	char name[64];
987 	unsigned int control, cmask;
988 	int in, out, err;
989 
990 	const unsigned int id = 5;
991 	const int val_type = USB_MIXER_S16;
992 
993 	for (out = 0; out < 8; out++) {
994 		control = out + 1;
995 		for (in = 0; in < 8; in++) {
996 			cmask = 1 << in;
997 			snprintf(name, sizeof(name),
998 				"AIn%d - Out%d Capture Volume",
999 				in  + 1, out + 1);
1000 			err = snd_create_std_mono_ctl(mixer, id, control,
1001 							cmask, val_type, name,
1002 							&snd_usb_mixer_vol_tlv);
1003 			if (err < 0)
1004 				return err;
1005 		}
1006 		for (in = 8; in < 16; in++) {
1007 			cmask = 1 << in;
1008 			snprintf(name, sizeof(name),
1009 				"DIn%d - Out%d Playback Volume",
1010 				in - 7, out + 1);
1011 			err = snd_create_std_mono_ctl(mixer, id, control,
1012 							cmask, val_type, name,
1013 							&snd_usb_mixer_vol_tlv);
1014 			if (err < 0)
1015 				return err;
1016 		}
1017 	}
1018 
1019 	return 0;
1020 }
1021 
1022 /* This control needs a volume quirk, see mixer.c */
1023 static int snd_ftu_create_effect_volume_ctl(struct usb_mixer_interface *mixer)
1024 {
1025 	static const char name[] = "Effect Volume";
1026 	const unsigned int id = 6;
1027 	const int val_type = USB_MIXER_U8;
1028 	const unsigned int control = 2;
1029 	const unsigned int cmask = 0;
1030 
1031 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1032 					name, snd_usb_mixer_vol_tlv);
1033 }
1034 
1035 /* This control needs a volume quirk, see mixer.c */
1036 static int snd_ftu_create_effect_duration_ctl(struct usb_mixer_interface *mixer)
1037 {
1038 	static const char name[] = "Effect Duration";
1039 	const unsigned int id = 6;
1040 	const int val_type = USB_MIXER_S16;
1041 	const unsigned int control = 3;
1042 	const unsigned int cmask = 0;
1043 
1044 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1045 					name, snd_usb_mixer_vol_tlv);
1046 }
1047 
1048 /* This control needs a volume quirk, see mixer.c */
1049 static int snd_ftu_create_effect_feedback_ctl(struct usb_mixer_interface *mixer)
1050 {
1051 	static const char name[] = "Effect Feedback Volume";
1052 	const unsigned int id = 6;
1053 	const int val_type = USB_MIXER_U8;
1054 	const unsigned int control = 4;
1055 	const unsigned int cmask = 0;
1056 
1057 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1058 					name, NULL);
1059 }
1060 
1061 static int snd_ftu_create_effect_return_ctls(struct usb_mixer_interface *mixer)
1062 {
1063 	unsigned int cmask;
1064 	int err, ch;
1065 	char name[48];
1066 
1067 	const unsigned int id = 7;
1068 	const int val_type = USB_MIXER_S16;
1069 	const unsigned int control = 7;
1070 
1071 	for (ch = 0; ch < 4; ++ch) {
1072 		cmask = 1 << ch;
1073 		snprintf(name, sizeof(name),
1074 			"Effect Return %d Volume", ch + 1);
1075 		err = snd_create_std_mono_ctl(mixer, id, control,
1076 						cmask, val_type, name,
1077 						snd_usb_mixer_vol_tlv);
1078 		if (err < 0)
1079 			return err;
1080 	}
1081 
1082 	return 0;
1083 }
1084 
1085 static int snd_ftu_create_effect_send_ctls(struct usb_mixer_interface *mixer)
1086 {
1087 	unsigned int  cmask;
1088 	int err, ch;
1089 	char name[48];
1090 
1091 	const unsigned int id = 5;
1092 	const int val_type = USB_MIXER_S16;
1093 	const unsigned int control = 9;
1094 
1095 	for (ch = 0; ch < 8; ++ch) {
1096 		cmask = 1 << ch;
1097 		snprintf(name, sizeof(name),
1098 			"Effect Send AIn%d Volume", ch + 1);
1099 		err = snd_create_std_mono_ctl(mixer, id, control, cmask,
1100 						val_type, name,
1101 						snd_usb_mixer_vol_tlv);
1102 		if (err < 0)
1103 			return err;
1104 	}
1105 	for (ch = 8; ch < 16; ++ch) {
1106 		cmask = 1 << ch;
1107 		snprintf(name, sizeof(name),
1108 			"Effect Send DIn%d Volume", ch - 7);
1109 		err = snd_create_std_mono_ctl(mixer, id, control, cmask,
1110 						val_type, name,
1111 						snd_usb_mixer_vol_tlv);
1112 		if (err < 0)
1113 			return err;
1114 	}
1115 	return 0;
1116 }
1117 
1118 static int snd_ftu_create_mixer(struct usb_mixer_interface *mixer)
1119 {
1120 	int err;
1121 
1122 	err = snd_ftu_create_volume_ctls(mixer);
1123 	if (err < 0)
1124 		return err;
1125 
1126 	err = snd_ftu_create_effect_switch(mixer, 1, 6);
1127 	if (err < 0)
1128 		return err;
1129 
1130 	err = snd_ftu_create_effect_volume_ctl(mixer);
1131 	if (err < 0)
1132 		return err;
1133 
1134 	err = snd_ftu_create_effect_duration_ctl(mixer);
1135 	if (err < 0)
1136 		return err;
1137 
1138 	err = snd_ftu_create_effect_feedback_ctl(mixer);
1139 	if (err < 0)
1140 		return err;
1141 
1142 	err = snd_ftu_create_effect_return_ctls(mixer);
1143 	if (err < 0)
1144 		return err;
1145 
1146 	err = snd_ftu_create_effect_send_ctls(mixer);
1147 	if (err < 0)
1148 		return err;
1149 
1150 	return 0;
1151 }
1152 
1153 void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
1154 			       unsigned char samplerate_id)
1155 {
1156 	struct usb_mixer_interface *mixer;
1157 	struct usb_mixer_elem_info *cval;
1158 	int unitid = 12; /* SamleRate ExtensionUnit ID */
1159 
1160 	list_for_each_entry(mixer, &chip->mixer_list, list) {
1161 		cval = mixer_elem_list_to_info(mixer->id_elems[unitid]);
1162 		if (cval) {
1163 			snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR,
1164 						    cval->control << 8,
1165 						    samplerate_id);
1166 			snd_usb_mixer_notify_id(mixer, unitid);
1167 		}
1168 		break;
1169 	}
1170 }
1171 
1172 /* M-Audio Fast Track C400/C600 */
1173 /* C400/C600 volume controls, this control needs a volume quirk, see mixer.c */
1174 static int snd_c400_create_vol_ctls(struct usb_mixer_interface *mixer)
1175 {
1176 	char name[64];
1177 	unsigned int cmask, offset;
1178 	int out, chan, err;
1179 	int num_outs = 0;
1180 	int num_ins = 0;
1181 
1182 	const unsigned int id = 0x40;
1183 	const int val_type = USB_MIXER_S16;
1184 	const int control = 1;
1185 
1186 	switch (mixer->chip->usb_id) {
1187 	case USB_ID(0x0763, 0x2030):
1188 		num_outs = 6;
1189 		num_ins = 4;
1190 		break;
1191 	case USB_ID(0x0763, 0x2031):
1192 		num_outs = 8;
1193 		num_ins = 6;
1194 		break;
1195 	}
1196 
1197 	for (chan = 0; chan < num_outs + num_ins; chan++) {
1198 		for (out = 0; out < num_outs; out++) {
1199 			if (chan < num_outs) {
1200 				snprintf(name, sizeof(name),
1201 					"PCM%d-Out%d Playback Volume",
1202 					chan + 1, out + 1);
1203 			} else {
1204 				snprintf(name, sizeof(name),
1205 					"In%d-Out%d Playback Volume",
1206 					chan - num_outs + 1, out + 1);
1207 			}
1208 
1209 			cmask = (out == 0) ? 0 : 1 << (out - 1);
1210 			offset = chan * num_outs;
1211 			err = snd_create_std_mono_ctl_offset(mixer, id, control,
1212 						cmask, val_type, offset, name,
1213 						&snd_usb_mixer_vol_tlv);
1214 			if (err < 0)
1215 				return err;
1216 		}
1217 	}
1218 
1219 	return 0;
1220 }
1221 
1222 /* This control needs a volume quirk, see mixer.c */
1223 static int snd_c400_create_effect_volume_ctl(struct usb_mixer_interface *mixer)
1224 {
1225 	static const char name[] = "Effect Volume";
1226 	const unsigned int id = 0x43;
1227 	const int val_type = USB_MIXER_U8;
1228 	const unsigned int control = 3;
1229 	const unsigned int cmask = 0;
1230 
1231 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1232 					name, snd_usb_mixer_vol_tlv);
1233 }
1234 
1235 /* This control needs a volume quirk, see mixer.c */
1236 static int snd_c400_create_effect_duration_ctl(struct usb_mixer_interface *mixer)
1237 {
1238 	static const char name[] = "Effect Duration";
1239 	const unsigned int id = 0x43;
1240 	const int val_type = USB_MIXER_S16;
1241 	const unsigned int control = 4;
1242 	const unsigned int cmask = 0;
1243 
1244 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1245 					name, snd_usb_mixer_vol_tlv);
1246 }
1247 
1248 /* This control needs a volume quirk, see mixer.c */
1249 static int snd_c400_create_effect_feedback_ctl(struct usb_mixer_interface *mixer)
1250 {
1251 	static const char name[] = "Effect Feedback Volume";
1252 	const unsigned int id = 0x43;
1253 	const int val_type = USB_MIXER_U8;
1254 	const unsigned int control = 5;
1255 	const unsigned int cmask = 0;
1256 
1257 	return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type,
1258 					name, NULL);
1259 }
1260 
1261 static int snd_c400_create_effect_vol_ctls(struct usb_mixer_interface *mixer)
1262 {
1263 	char name[64];
1264 	unsigned int cmask;
1265 	int chan, err;
1266 	int num_outs = 0;
1267 	int num_ins = 0;
1268 
1269 	const unsigned int id = 0x42;
1270 	const int val_type = USB_MIXER_S16;
1271 	const int control = 1;
1272 
1273 	switch (mixer->chip->usb_id) {
1274 	case USB_ID(0x0763, 0x2030):
1275 		num_outs = 6;
1276 		num_ins = 4;
1277 		break;
1278 	case USB_ID(0x0763, 0x2031):
1279 		num_outs = 8;
1280 		num_ins = 6;
1281 		break;
1282 	}
1283 
1284 	for (chan = 0; chan < num_outs + num_ins; chan++) {
1285 		if (chan < num_outs) {
1286 			snprintf(name, sizeof(name),
1287 				"Effect Send DOut%d",
1288 				chan + 1);
1289 		} else {
1290 			snprintf(name, sizeof(name),
1291 				"Effect Send AIn%d",
1292 				chan - num_outs + 1);
1293 		}
1294 
1295 		cmask = (chan == 0) ? 0 : 1 << (chan - 1);
1296 		err = snd_create_std_mono_ctl(mixer, id, control,
1297 						cmask, val_type, name,
1298 						&snd_usb_mixer_vol_tlv);
1299 		if (err < 0)
1300 			return err;
1301 	}
1302 
1303 	return 0;
1304 }
1305 
1306 static int snd_c400_create_effect_ret_vol_ctls(struct usb_mixer_interface *mixer)
1307 {
1308 	char name[64];
1309 	unsigned int cmask;
1310 	int chan, err;
1311 	int num_outs = 0;
1312 	int offset = 0;
1313 
1314 	const unsigned int id = 0x40;
1315 	const int val_type = USB_MIXER_S16;
1316 	const int control = 1;
1317 
1318 	switch (mixer->chip->usb_id) {
1319 	case USB_ID(0x0763, 0x2030):
1320 		num_outs = 6;
1321 		offset = 0x3c;
1322 		/* { 0x3c, 0x43, 0x3e, 0x45, 0x40, 0x47 } */
1323 		break;
1324 	case USB_ID(0x0763, 0x2031):
1325 		num_outs = 8;
1326 		offset = 0x70;
1327 		/* { 0x70, 0x79, 0x72, 0x7b, 0x74, 0x7d, 0x76, 0x7f } */
1328 		break;
1329 	}
1330 
1331 	for (chan = 0; chan < num_outs; chan++) {
1332 		snprintf(name, sizeof(name),
1333 			"Effect Return %d",
1334 			chan + 1);
1335 
1336 		cmask = (chan == 0) ? 0 :
1337 			1 << (chan + (chan % 2) * num_outs - 1);
1338 		err = snd_create_std_mono_ctl_offset(mixer, id, control,
1339 						cmask, val_type, offset, name,
1340 						&snd_usb_mixer_vol_tlv);
1341 		if (err < 0)
1342 			return err;
1343 	}
1344 
1345 	return 0;
1346 }
1347 
1348 static int snd_c400_create_mixer(struct usb_mixer_interface *mixer)
1349 {
1350 	int err;
1351 
1352 	err = snd_c400_create_vol_ctls(mixer);
1353 	if (err < 0)
1354 		return err;
1355 
1356 	err = snd_c400_create_effect_vol_ctls(mixer);
1357 	if (err < 0)
1358 		return err;
1359 
1360 	err = snd_c400_create_effect_ret_vol_ctls(mixer);
1361 	if (err < 0)
1362 		return err;
1363 
1364 	err = snd_ftu_create_effect_switch(mixer, 2, 0x43);
1365 	if (err < 0)
1366 		return err;
1367 
1368 	err = snd_c400_create_effect_volume_ctl(mixer);
1369 	if (err < 0)
1370 		return err;
1371 
1372 	err = snd_c400_create_effect_duration_ctl(mixer);
1373 	if (err < 0)
1374 		return err;
1375 
1376 	err = snd_c400_create_effect_feedback_ctl(mixer);
1377 	if (err < 0)
1378 		return err;
1379 
1380 	return 0;
1381 }
1382 
1383 /*
1384  * The mixer units for Ebox-44 are corrupt, and even where they
1385  * are valid they presents mono controls as L and R channels of
1386  * stereo. So we provide a good mixer here.
1387  */
1388 static struct std_mono_table ebox44_table[] = {
1389 	{
1390 		.unitid = 4,
1391 		.control = 1,
1392 		.cmask = 0x0,
1393 		.val_type = USB_MIXER_INV_BOOLEAN,
1394 		.name = "Headphone Playback Switch"
1395 	},
1396 	{
1397 		.unitid = 4,
1398 		.control = 2,
1399 		.cmask = 0x1,
1400 		.val_type = USB_MIXER_S16,
1401 		.name = "Headphone A Mix Playback Volume"
1402 	},
1403 	{
1404 		.unitid = 4,
1405 		.control = 2,
1406 		.cmask = 0x2,
1407 		.val_type = USB_MIXER_S16,
1408 		.name = "Headphone B Mix Playback Volume"
1409 	},
1410 
1411 	{
1412 		.unitid = 7,
1413 		.control = 1,
1414 		.cmask = 0x0,
1415 		.val_type = USB_MIXER_INV_BOOLEAN,
1416 		.name = "Output Playback Switch"
1417 	},
1418 	{
1419 		.unitid = 7,
1420 		.control = 2,
1421 		.cmask = 0x1,
1422 		.val_type = USB_MIXER_S16,
1423 		.name = "Output A Playback Volume"
1424 	},
1425 	{
1426 		.unitid = 7,
1427 		.control = 2,
1428 		.cmask = 0x2,
1429 		.val_type = USB_MIXER_S16,
1430 		.name = "Output B Playback Volume"
1431 	},
1432 
1433 	{
1434 		.unitid = 10,
1435 		.control = 1,
1436 		.cmask = 0x0,
1437 		.val_type = USB_MIXER_INV_BOOLEAN,
1438 		.name = "Input Capture Switch"
1439 	},
1440 	{
1441 		.unitid = 10,
1442 		.control = 2,
1443 		.cmask = 0x1,
1444 		.val_type = USB_MIXER_S16,
1445 		.name = "Input A Capture Volume"
1446 	},
1447 	{
1448 		.unitid = 10,
1449 		.control = 2,
1450 		.cmask = 0x2,
1451 		.val_type = USB_MIXER_S16,
1452 		.name = "Input B Capture Volume"
1453 	},
1454 
1455 	{}
1456 };
1457 
1458 /* Audio Advantage Micro II findings:
1459  *
1460  * Mapping spdif AES bits to vendor register.bit:
1461  * AES0: [0 0 0 0 2.3 2.2 2.1 2.0] - default 0x00
1462  * AES1: [3.3 3.2.3.1.3.0 2.7 2.6 2.5 2.4] - default: 0x01
1463  * AES2: [0 0 0 0 0 0 0 0]
1464  * AES3: [0 0 0 0 0 0 x 0] - 'x' bit is set basing on standard usb request
1465  *                           (UAC_EP_CS_ATTR_SAMPLE_RATE) for Audio Devices
1466  *
1467  * power on values:
1468  * r2: 0x10
1469  * r3: 0x20 (b7 is zeroed just before playback (except IEC61937) and set
1470  *           just after it to 0xa0, presumably it disables/mutes some analog
1471  *           parts when there is no audio.)
1472  * r9: 0x28
1473  *
1474  * Optical transmitter on/off:
1475  * vendor register.bit: 9.1
1476  * 0 - on (0x28 register value)
1477  * 1 - off (0x2a register value)
1478  *
1479  */
1480 static int snd_microii_spdif_info(struct snd_kcontrol *kcontrol,
1481 	struct snd_ctl_elem_info *uinfo)
1482 {
1483 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1484 	uinfo->count = 1;
1485 	return 0;
1486 }
1487 
1488 static int snd_microii_spdif_default_get(struct snd_kcontrol *kcontrol,
1489 	struct snd_ctl_elem_value *ucontrol)
1490 {
1491 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1492 	struct snd_usb_audio *chip = list->mixer->chip;
1493 	int err;
1494 	struct usb_interface *iface;
1495 	struct usb_host_interface *alts;
1496 	unsigned int ep;
1497 	unsigned char data[3];
1498 	int rate;
1499 
1500 	err = snd_usb_lock_shutdown(chip);
1501 	if (err < 0)
1502 		return err;
1503 
1504 	ucontrol->value.iec958.status[0] = kcontrol->private_value & 0xff;
1505 	ucontrol->value.iec958.status[1] = (kcontrol->private_value >> 8) & 0xff;
1506 	ucontrol->value.iec958.status[2] = 0x00;
1507 
1508 	/* use known values for that card: interface#1 altsetting#1 */
1509 	iface = usb_ifnum_to_if(chip->dev, 1);
1510 	if (!iface || iface->num_altsetting < 2)
1511 		return -EINVAL;
1512 	alts = &iface->altsetting[1];
1513 	if (get_iface_desc(alts)->bNumEndpoints < 1)
1514 		return -EINVAL;
1515 	ep = get_endpoint(alts, 0)->bEndpointAddress;
1516 
1517 	err = snd_usb_ctl_msg(chip->dev,
1518 			usb_rcvctrlpipe(chip->dev, 0),
1519 			UAC_GET_CUR,
1520 			USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN,
1521 			UAC_EP_CS_ATTR_SAMPLE_RATE << 8,
1522 			ep,
1523 			data,
1524 			sizeof(data));
1525 	if (err < 0)
1526 		goto end;
1527 
1528 	rate = data[0] | (data[1] << 8) | (data[2] << 16);
1529 	ucontrol->value.iec958.status[3] = (rate == 48000) ?
1530 			IEC958_AES3_CON_FS_48000 : IEC958_AES3_CON_FS_44100;
1531 
1532 	err = 0;
1533  end:
1534 	snd_usb_unlock_shutdown(chip);
1535 	return err;
1536 }
1537 
1538 static int snd_microii_spdif_default_update(struct usb_mixer_elem_list *list)
1539 {
1540 	struct snd_usb_audio *chip = list->mixer->chip;
1541 	unsigned int pval = list->kctl->private_value;
1542 	u8 reg;
1543 	int err;
1544 
1545 	err = snd_usb_lock_shutdown(chip);
1546 	if (err < 0)
1547 		return err;
1548 
1549 	reg = ((pval >> 4) & 0xf0) | (pval & 0x0f);
1550 	err = snd_usb_ctl_msg(chip->dev,
1551 			usb_sndctrlpipe(chip->dev, 0),
1552 			UAC_SET_CUR,
1553 			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
1554 			reg,
1555 			2,
1556 			NULL,
1557 			0);
1558 	if (err < 0)
1559 		goto end;
1560 
1561 	reg = (pval & IEC958_AES0_NONAUDIO) ? 0xa0 : 0x20;
1562 	reg |= (pval >> 12) & 0x0f;
1563 	err = snd_usb_ctl_msg(chip->dev,
1564 			usb_sndctrlpipe(chip->dev, 0),
1565 			UAC_SET_CUR,
1566 			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
1567 			reg,
1568 			3,
1569 			NULL,
1570 			0);
1571 	if (err < 0)
1572 		goto end;
1573 
1574  end:
1575 	snd_usb_unlock_shutdown(chip);
1576 	return err;
1577 }
1578 
1579 static int snd_microii_spdif_default_put(struct snd_kcontrol *kcontrol,
1580 	struct snd_ctl_elem_value *ucontrol)
1581 {
1582 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1583 	unsigned int pval, pval_old;
1584 	int err;
1585 
1586 	pval = pval_old = kcontrol->private_value;
1587 	pval &= 0xfffff0f0;
1588 	pval |= (ucontrol->value.iec958.status[1] & 0x0f) << 8;
1589 	pval |= (ucontrol->value.iec958.status[0] & 0x0f);
1590 
1591 	pval &= 0xffff0fff;
1592 	pval |= (ucontrol->value.iec958.status[1] & 0xf0) << 8;
1593 
1594 	/* The frequency bits in AES3 cannot be set via register access. */
1595 
1596 	/* Silently ignore any bits from the request that cannot be set. */
1597 
1598 	if (pval == pval_old)
1599 		return 0;
1600 
1601 	kcontrol->private_value = pval;
1602 	err = snd_microii_spdif_default_update(list);
1603 	return err < 0 ? err : 1;
1604 }
1605 
1606 static int snd_microii_spdif_mask_get(struct snd_kcontrol *kcontrol,
1607 	struct snd_ctl_elem_value *ucontrol)
1608 {
1609 	ucontrol->value.iec958.status[0] = 0x0f;
1610 	ucontrol->value.iec958.status[1] = 0xff;
1611 	ucontrol->value.iec958.status[2] = 0x00;
1612 	ucontrol->value.iec958.status[3] = 0x00;
1613 
1614 	return 0;
1615 }
1616 
1617 static int snd_microii_spdif_switch_get(struct snd_kcontrol *kcontrol,
1618 	struct snd_ctl_elem_value *ucontrol)
1619 {
1620 	ucontrol->value.integer.value[0] = !(kcontrol->private_value & 0x02);
1621 
1622 	return 0;
1623 }
1624 
1625 static int snd_microii_spdif_switch_update(struct usb_mixer_elem_list *list)
1626 {
1627 	struct snd_usb_audio *chip = list->mixer->chip;
1628 	u8 reg = list->kctl->private_value;
1629 	int err;
1630 
1631 	err = snd_usb_lock_shutdown(chip);
1632 	if (err < 0)
1633 		return err;
1634 
1635 	err = snd_usb_ctl_msg(chip->dev,
1636 			usb_sndctrlpipe(chip->dev, 0),
1637 			UAC_SET_CUR,
1638 			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
1639 			reg,
1640 			9,
1641 			NULL,
1642 			0);
1643 
1644 	snd_usb_unlock_shutdown(chip);
1645 	return err;
1646 }
1647 
1648 static int snd_microii_spdif_switch_put(struct snd_kcontrol *kcontrol,
1649 	struct snd_ctl_elem_value *ucontrol)
1650 {
1651 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1652 	u8 reg;
1653 	int err;
1654 
1655 	reg = ucontrol->value.integer.value[0] ? 0x28 : 0x2a;
1656 	if (reg != list->kctl->private_value)
1657 		return 0;
1658 
1659 	kcontrol->private_value = reg;
1660 	err = snd_microii_spdif_switch_update(list);
1661 	return err < 0 ? err : 1;
1662 }
1663 
1664 static struct snd_kcontrol_new snd_microii_mixer_spdif[] = {
1665 	{
1666 		.iface =    SNDRV_CTL_ELEM_IFACE_PCM,
1667 		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1668 		.info =     snd_microii_spdif_info,
1669 		.get =      snd_microii_spdif_default_get,
1670 		.put =      snd_microii_spdif_default_put,
1671 		.private_value = 0x00000100UL,/* reset value */
1672 	},
1673 	{
1674 		.access =   SNDRV_CTL_ELEM_ACCESS_READ,
1675 		.iface =    SNDRV_CTL_ELEM_IFACE_PCM,
1676 		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
1677 		.info =     snd_microii_spdif_info,
1678 		.get =      snd_microii_spdif_mask_get,
1679 	},
1680 	{
1681 		.iface =    SNDRV_CTL_ELEM_IFACE_MIXER,
1682 		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
1683 		.info =     snd_ctl_boolean_mono_info,
1684 		.get =      snd_microii_spdif_switch_get,
1685 		.put =      snd_microii_spdif_switch_put,
1686 		.private_value = 0x00000028UL,/* reset value */
1687 	}
1688 };
1689 
1690 static int snd_microii_controls_create(struct usb_mixer_interface *mixer)
1691 {
1692 	int err, i;
1693 	static usb_mixer_elem_resume_func_t resume_funcs[] = {
1694 		snd_microii_spdif_default_update,
1695 		NULL,
1696 		snd_microii_spdif_switch_update
1697 	};
1698 
1699 	for (i = 0; i < ARRAY_SIZE(snd_microii_mixer_spdif); ++i) {
1700 		err = add_single_ctl_with_resume(mixer, 0,
1701 						 resume_funcs[i],
1702 						 &snd_microii_mixer_spdif[i],
1703 						 NULL);
1704 		if (err < 0)
1705 			return err;
1706 	}
1707 
1708 	return 0;
1709 }
1710 
1711 /* Creative Sound Blaster E1 */
1712 
1713 static int snd_soundblaster_e1_switch_get(struct snd_kcontrol *kcontrol,
1714 					  struct snd_ctl_elem_value *ucontrol)
1715 {
1716 	ucontrol->value.integer.value[0] = kcontrol->private_value;
1717 	return 0;
1718 }
1719 
1720 static int snd_soundblaster_e1_switch_update(struct usb_mixer_interface *mixer,
1721 					     unsigned char state)
1722 {
1723 	struct snd_usb_audio *chip = mixer->chip;
1724 	int err;
1725 	unsigned char buff[2];
1726 
1727 	buff[0] = 0x02;
1728 	buff[1] = state ? 0x02 : 0x00;
1729 
1730 	err = snd_usb_lock_shutdown(chip);
1731 	if (err < 0)
1732 		return err;
1733 	err = snd_usb_ctl_msg(chip->dev,
1734 			usb_sndctrlpipe(chip->dev, 0), HID_REQ_SET_REPORT,
1735 			USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
1736 			0x0202, 3, buff, 2);
1737 	snd_usb_unlock_shutdown(chip);
1738 	return err;
1739 }
1740 
1741 static int snd_soundblaster_e1_switch_put(struct snd_kcontrol *kcontrol,
1742 					  struct snd_ctl_elem_value *ucontrol)
1743 {
1744 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1745 	unsigned char value = !!ucontrol->value.integer.value[0];
1746 	int err;
1747 
1748 	if (kcontrol->private_value == value)
1749 		return 0;
1750 	kcontrol->private_value = value;
1751 	err = snd_soundblaster_e1_switch_update(list->mixer, value);
1752 	return err < 0 ? err : 1;
1753 }
1754 
1755 static int snd_soundblaster_e1_switch_resume(struct usb_mixer_elem_list *list)
1756 {
1757 	return snd_soundblaster_e1_switch_update(list->mixer,
1758 						 list->kctl->private_value);
1759 }
1760 
1761 static int snd_soundblaster_e1_switch_info(struct snd_kcontrol *kcontrol,
1762 					   struct snd_ctl_elem_info *uinfo)
1763 {
1764 	static const char *const texts[2] = {
1765 		"Mic", "Aux"
1766 	};
1767 
1768 	return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
1769 }
1770 
1771 static struct snd_kcontrol_new snd_soundblaster_e1_input_switch = {
1772 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1773 	.name = "Input Source",
1774 	.info = snd_soundblaster_e1_switch_info,
1775 	.get = snd_soundblaster_e1_switch_get,
1776 	.put = snd_soundblaster_e1_switch_put,
1777 	.private_value = 0,
1778 };
1779 
1780 static int snd_soundblaster_e1_switch_create(struct usb_mixer_interface *mixer)
1781 {
1782 	return add_single_ctl_with_resume(mixer, 0,
1783 					  snd_soundblaster_e1_switch_resume,
1784 					  &snd_soundblaster_e1_input_switch,
1785 					  NULL);
1786 }
1787 
1788 static void dell_dock_init_vol(struct snd_usb_audio *chip, int ch, int id)
1789 {
1790 	u16 buf = 0;
1791 
1792 	snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR,
1793 			USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
1794 			ch, snd_usb_ctrl_intf(chip) | (id << 8),
1795 			&buf, 2);
1796 }
1797 
1798 static int dell_dock_mixer_init(struct usb_mixer_interface *mixer)
1799 {
1800 	/* fix to 0dB playback volumes */
1801 	dell_dock_init_vol(mixer->chip, 1, 16);
1802 	dell_dock_init_vol(mixer->chip, 2, 16);
1803 	dell_dock_init_vol(mixer->chip, 1, 19);
1804 	dell_dock_init_vol(mixer->chip, 2, 19);
1805 	return 0;
1806 }
1807 
1808 /* RME Class Compliant device quirks */
1809 
1810 #define SND_RME_GET_STATUS1			23
1811 #define SND_RME_GET_CURRENT_FREQ		17
1812 #define SND_RME_CLK_SYSTEM_SHIFT		16
1813 #define SND_RME_CLK_SYSTEM_MASK			0x1f
1814 #define SND_RME_CLK_AES_SHIFT			8
1815 #define SND_RME_CLK_SPDIF_SHIFT			12
1816 #define SND_RME_CLK_AES_SPDIF_MASK		0xf
1817 #define SND_RME_CLK_SYNC_SHIFT			6
1818 #define SND_RME_CLK_SYNC_MASK			0x3
1819 #define SND_RME_CLK_FREQMUL_SHIFT		18
1820 #define SND_RME_CLK_FREQMUL_MASK		0x7
1821 #define SND_RME_CLK_SYSTEM(x) \
1822 	((x >> SND_RME_CLK_SYSTEM_SHIFT) & SND_RME_CLK_SYSTEM_MASK)
1823 #define SND_RME_CLK_AES(x) \
1824 	((x >> SND_RME_CLK_AES_SHIFT) & SND_RME_CLK_AES_SPDIF_MASK)
1825 #define SND_RME_CLK_SPDIF(x) \
1826 	((x >> SND_RME_CLK_SPDIF_SHIFT) & SND_RME_CLK_AES_SPDIF_MASK)
1827 #define SND_RME_CLK_SYNC(x) \
1828 	((x >> SND_RME_CLK_SYNC_SHIFT) & SND_RME_CLK_SYNC_MASK)
1829 #define SND_RME_CLK_FREQMUL(x) \
1830 	((x >> SND_RME_CLK_FREQMUL_SHIFT) & SND_RME_CLK_FREQMUL_MASK)
1831 #define SND_RME_CLK_AES_LOCK			0x1
1832 #define SND_RME_CLK_AES_SYNC			0x4
1833 #define SND_RME_CLK_SPDIF_LOCK			0x2
1834 #define SND_RME_CLK_SPDIF_SYNC			0x8
1835 #define SND_RME_SPDIF_IF_SHIFT			4
1836 #define SND_RME_SPDIF_FORMAT_SHIFT		5
1837 #define SND_RME_BINARY_MASK			0x1
1838 #define SND_RME_SPDIF_IF(x) \
1839 	((x >> SND_RME_SPDIF_IF_SHIFT) & SND_RME_BINARY_MASK)
1840 #define SND_RME_SPDIF_FORMAT(x) \
1841 	((x >> SND_RME_SPDIF_FORMAT_SHIFT) & SND_RME_BINARY_MASK)
1842 
1843 static const u32 snd_rme_rate_table[] = {
1844 	32000, 44100, 48000, 50000,
1845 	64000, 88200, 96000, 100000,
1846 	128000, 176400, 192000, 200000,
1847 	256000,	352800, 384000, 400000,
1848 	512000, 705600, 768000, 800000
1849 };
1850 /* maximum number of items for AES and S/PDIF rates for above table */
1851 #define SND_RME_RATE_IDX_AES_SPDIF_NUM		12
1852 
1853 enum snd_rme_domain {
1854 	SND_RME_DOMAIN_SYSTEM,
1855 	SND_RME_DOMAIN_AES,
1856 	SND_RME_DOMAIN_SPDIF
1857 };
1858 
1859 enum snd_rme_clock_status {
1860 	SND_RME_CLOCK_NOLOCK,
1861 	SND_RME_CLOCK_LOCK,
1862 	SND_RME_CLOCK_SYNC
1863 };
1864 
1865 static int snd_rme_read_value(struct snd_usb_audio *chip,
1866 			      unsigned int item,
1867 			      u32 *value)
1868 {
1869 	struct usb_device *dev = chip->dev;
1870 	int err;
1871 
1872 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
1873 			      item,
1874 			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1875 			      0, 0,
1876 			      value, sizeof(*value));
1877 	if (err < 0)
1878 		dev_err(&dev->dev,
1879 			"unable to issue vendor read request %d (ret = %d)",
1880 			item, err);
1881 	return err;
1882 }
1883 
1884 static int snd_rme_get_status1(struct snd_kcontrol *kcontrol,
1885 			       u32 *status1)
1886 {
1887 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
1888 	struct snd_usb_audio *chip = list->mixer->chip;
1889 	int err;
1890 
1891 	err = snd_usb_lock_shutdown(chip);
1892 	if (err < 0)
1893 		return err;
1894 	err = snd_rme_read_value(chip, SND_RME_GET_STATUS1, status1);
1895 	snd_usb_unlock_shutdown(chip);
1896 	return err;
1897 }
1898 
1899 static int snd_rme_rate_get(struct snd_kcontrol *kcontrol,
1900 			    struct snd_ctl_elem_value *ucontrol)
1901 {
1902 	u32 status1;
1903 	u32 rate = 0;
1904 	int idx;
1905 	int err;
1906 
1907 	err = snd_rme_get_status1(kcontrol, &status1);
1908 	if (err < 0)
1909 		return err;
1910 	switch (kcontrol->private_value) {
1911 	case SND_RME_DOMAIN_SYSTEM:
1912 		idx = SND_RME_CLK_SYSTEM(status1);
1913 		if (idx < ARRAY_SIZE(snd_rme_rate_table))
1914 			rate = snd_rme_rate_table[idx];
1915 		break;
1916 	case SND_RME_DOMAIN_AES:
1917 		idx = SND_RME_CLK_AES(status1);
1918 		if (idx < SND_RME_RATE_IDX_AES_SPDIF_NUM)
1919 			rate = snd_rme_rate_table[idx];
1920 		break;
1921 	case SND_RME_DOMAIN_SPDIF:
1922 		idx = SND_RME_CLK_SPDIF(status1);
1923 		if (idx < SND_RME_RATE_IDX_AES_SPDIF_NUM)
1924 			rate = snd_rme_rate_table[idx];
1925 		break;
1926 	default:
1927 		return -EINVAL;
1928 	}
1929 	ucontrol->value.integer.value[0] = rate;
1930 	return 0;
1931 }
1932 
1933 static int snd_rme_sync_state_get(struct snd_kcontrol *kcontrol,
1934 				  struct snd_ctl_elem_value *ucontrol)
1935 {
1936 	u32 status1;
1937 	int idx = SND_RME_CLOCK_NOLOCK;
1938 	int err;
1939 
1940 	err = snd_rme_get_status1(kcontrol, &status1);
1941 	if (err < 0)
1942 		return err;
1943 	switch (kcontrol->private_value) {
1944 	case SND_RME_DOMAIN_AES:  /* AES */
1945 		if (status1 & SND_RME_CLK_AES_SYNC)
1946 			idx = SND_RME_CLOCK_SYNC;
1947 		else if (status1 & SND_RME_CLK_AES_LOCK)
1948 			idx = SND_RME_CLOCK_LOCK;
1949 		break;
1950 	case SND_RME_DOMAIN_SPDIF:  /* SPDIF */
1951 		if (status1 & SND_RME_CLK_SPDIF_SYNC)
1952 			idx = SND_RME_CLOCK_SYNC;
1953 		else if (status1 & SND_RME_CLK_SPDIF_LOCK)
1954 			idx = SND_RME_CLOCK_LOCK;
1955 		break;
1956 	default:
1957 		return -EINVAL;
1958 	}
1959 	ucontrol->value.enumerated.item[0] = idx;
1960 	return 0;
1961 }
1962 
1963 static int snd_rme_spdif_if_get(struct snd_kcontrol *kcontrol,
1964 				struct snd_ctl_elem_value *ucontrol)
1965 {
1966 	u32 status1;
1967 	int err;
1968 
1969 	err = snd_rme_get_status1(kcontrol, &status1);
1970 	if (err < 0)
1971 		return err;
1972 	ucontrol->value.enumerated.item[0] = SND_RME_SPDIF_IF(status1);
1973 	return 0;
1974 }
1975 
1976 static int snd_rme_spdif_format_get(struct snd_kcontrol *kcontrol,
1977 				    struct snd_ctl_elem_value *ucontrol)
1978 {
1979 	u32 status1;
1980 	int err;
1981 
1982 	err = snd_rme_get_status1(kcontrol, &status1);
1983 	if (err < 0)
1984 		return err;
1985 	ucontrol->value.enumerated.item[0] = SND_RME_SPDIF_FORMAT(status1);
1986 	return 0;
1987 }
1988 
1989 static int snd_rme_sync_source_get(struct snd_kcontrol *kcontrol,
1990 				   struct snd_ctl_elem_value *ucontrol)
1991 {
1992 	u32 status1;
1993 	int err;
1994 
1995 	err = snd_rme_get_status1(kcontrol, &status1);
1996 	if (err < 0)
1997 		return err;
1998 	ucontrol->value.enumerated.item[0] = SND_RME_CLK_SYNC(status1);
1999 	return 0;
2000 }
2001 
2002 static int snd_rme_current_freq_get(struct snd_kcontrol *kcontrol,
2003 				    struct snd_ctl_elem_value *ucontrol)
2004 {
2005 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
2006 	struct snd_usb_audio *chip = list->mixer->chip;
2007 	u32 status1;
2008 	const u64 num = 104857600000000ULL;
2009 	u32 den;
2010 	unsigned int freq;
2011 	int err;
2012 
2013 	err = snd_usb_lock_shutdown(chip);
2014 	if (err < 0)
2015 		return err;
2016 	err = snd_rme_read_value(chip, SND_RME_GET_STATUS1, &status1);
2017 	if (err < 0)
2018 		goto end;
2019 	err = snd_rme_read_value(chip, SND_RME_GET_CURRENT_FREQ, &den);
2020 	if (err < 0)
2021 		goto end;
2022 	freq = (den == 0) ? 0 : div64_u64(num, den);
2023 	freq <<= SND_RME_CLK_FREQMUL(status1);
2024 	ucontrol->value.integer.value[0] = freq;
2025 
2026 end:
2027 	snd_usb_unlock_shutdown(chip);
2028 	return err;
2029 }
2030 
2031 static int snd_rme_rate_info(struct snd_kcontrol *kcontrol,
2032 			     struct snd_ctl_elem_info *uinfo)
2033 {
2034 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2035 	uinfo->count = 1;
2036 	switch (kcontrol->private_value) {
2037 	case SND_RME_DOMAIN_SYSTEM:
2038 		uinfo->value.integer.min = 32000;
2039 		uinfo->value.integer.max = 800000;
2040 		break;
2041 	case SND_RME_DOMAIN_AES:
2042 	case SND_RME_DOMAIN_SPDIF:
2043 	default:
2044 		uinfo->value.integer.min = 0;
2045 		uinfo->value.integer.max = 200000;
2046 	}
2047 	uinfo->value.integer.step = 0;
2048 	return 0;
2049 }
2050 
2051 static int snd_rme_sync_state_info(struct snd_kcontrol *kcontrol,
2052 				   struct snd_ctl_elem_info *uinfo)
2053 {
2054 	static const char *const sync_states[] = {
2055 		"No Lock", "Lock", "Sync"
2056 	};
2057 
2058 	return snd_ctl_enum_info(uinfo, 1,
2059 				 ARRAY_SIZE(sync_states), sync_states);
2060 }
2061 
2062 static int snd_rme_spdif_if_info(struct snd_kcontrol *kcontrol,
2063 				 struct snd_ctl_elem_info *uinfo)
2064 {
2065 	static const char *const spdif_if[] = {
2066 		"Coaxial", "Optical"
2067 	};
2068 
2069 	return snd_ctl_enum_info(uinfo, 1,
2070 				 ARRAY_SIZE(spdif_if), spdif_if);
2071 }
2072 
2073 static int snd_rme_spdif_format_info(struct snd_kcontrol *kcontrol,
2074 				     struct snd_ctl_elem_info *uinfo)
2075 {
2076 	static const char *const optical_type[] = {
2077 		"Consumer", "Professional"
2078 	};
2079 
2080 	return snd_ctl_enum_info(uinfo, 1,
2081 				 ARRAY_SIZE(optical_type), optical_type);
2082 }
2083 
2084 static int snd_rme_sync_source_info(struct snd_kcontrol *kcontrol,
2085 				    struct snd_ctl_elem_info *uinfo)
2086 {
2087 	static const char *const sync_sources[] = {
2088 		"Internal", "AES", "SPDIF", "Internal"
2089 	};
2090 
2091 	return snd_ctl_enum_info(uinfo, 1,
2092 				 ARRAY_SIZE(sync_sources), sync_sources);
2093 }
2094 
2095 static struct snd_kcontrol_new snd_rme_controls[] = {
2096 	{
2097 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2098 		.name = "AES Rate",
2099 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2100 		.info = snd_rme_rate_info,
2101 		.get = snd_rme_rate_get,
2102 		.private_value = SND_RME_DOMAIN_AES
2103 	},
2104 	{
2105 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2106 		.name = "AES Sync",
2107 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2108 		.info = snd_rme_sync_state_info,
2109 		.get = snd_rme_sync_state_get,
2110 		.private_value = SND_RME_DOMAIN_AES
2111 	},
2112 	{
2113 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2114 		.name = "SPDIF Rate",
2115 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2116 		.info = snd_rme_rate_info,
2117 		.get = snd_rme_rate_get,
2118 		.private_value = SND_RME_DOMAIN_SPDIF
2119 	},
2120 	{
2121 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2122 		.name = "SPDIF Sync",
2123 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2124 		.info = snd_rme_sync_state_info,
2125 		.get = snd_rme_sync_state_get,
2126 		.private_value = SND_RME_DOMAIN_SPDIF
2127 	},
2128 	{
2129 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2130 		.name = "SPDIF Interface",
2131 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2132 		.info = snd_rme_spdif_if_info,
2133 		.get = snd_rme_spdif_if_get,
2134 	},
2135 	{
2136 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2137 		.name = "SPDIF Format",
2138 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2139 		.info = snd_rme_spdif_format_info,
2140 		.get = snd_rme_spdif_format_get,
2141 	},
2142 	{
2143 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2144 		.name = "Sync Source",
2145 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2146 		.info = snd_rme_sync_source_info,
2147 		.get = snd_rme_sync_source_get
2148 	},
2149 	{
2150 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2151 		.name = "System Rate",
2152 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2153 		.info = snd_rme_rate_info,
2154 		.get = snd_rme_rate_get,
2155 		.private_value = SND_RME_DOMAIN_SYSTEM
2156 	},
2157 	{
2158 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2159 		.name = "Current Frequency",
2160 		.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
2161 		.info = snd_rme_rate_info,
2162 		.get = snd_rme_current_freq_get
2163 	}
2164 };
2165 
2166 static int snd_rme_controls_create(struct usb_mixer_interface *mixer)
2167 {
2168 	int err, i;
2169 
2170 	for (i = 0; i < ARRAY_SIZE(snd_rme_controls); ++i) {
2171 		err = add_single_ctl_with_resume(mixer, 0,
2172 						 NULL,
2173 						 &snd_rme_controls[i],
2174 						 NULL);
2175 		if (err < 0)
2176 			return err;
2177 	}
2178 
2179 	return 0;
2180 }
2181 
2182 int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
2183 {
2184 	int err = 0;
2185 
2186 	err = snd_usb_soundblaster_remote_init(mixer);
2187 	if (err < 0)
2188 		return err;
2189 
2190 	switch (mixer->chip->usb_id) {
2191 	/* Tascam US-16x08 */
2192 	case USB_ID(0x0644, 0x8047):
2193 		err = snd_us16x08_controls_create(mixer);
2194 		break;
2195 	case USB_ID(0x041e, 0x3020):
2196 	case USB_ID(0x041e, 0x3040):
2197 	case USB_ID(0x041e, 0x3042):
2198 	case USB_ID(0x041e, 0x30df):
2199 	case USB_ID(0x041e, 0x3048):
2200 		err = snd_audigy2nx_controls_create(mixer);
2201 		if (err < 0)
2202 			break;
2203 		snd_card_ro_proc_new(mixer->chip->card, "audigy2nx",
2204 				     mixer, snd_audigy2nx_proc_read);
2205 		break;
2206 
2207 	/* EMU0204 */
2208 	case USB_ID(0x041e, 0x3f19):
2209 		err = snd_emu0204_controls_create(mixer);
2210 		break;
2211 
2212 	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */
2213 	case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C400 */
2214 		err = snd_c400_create_mixer(mixer);
2215 		break;
2216 
2217 	case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
2218 	case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
2219 		err = snd_ftu_create_mixer(mixer);
2220 		break;
2221 
2222 	case USB_ID(0x0b05, 0x1739): /* ASUS Xonar U1 */
2223 	case USB_ID(0x0b05, 0x1743): /* ASUS Xonar U1 (2) */
2224 	case USB_ID(0x0b05, 0x17a0): /* ASUS Xonar U3 */
2225 		err = snd_xonar_u1_controls_create(mixer);
2226 		break;
2227 
2228 	case USB_ID(0x0d8c, 0x0103): /* Audio Advantage Micro II */
2229 		err = snd_microii_controls_create(mixer);
2230 		break;
2231 
2232 	case USB_ID(0x0dba, 0x1000): /* Digidesign Mbox 1 */
2233 		err = snd_mbox1_create_sync_switch(mixer);
2234 		break;
2235 
2236 	case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */
2237 		err = snd_nativeinstruments_create_mixer(mixer,
2238 				snd_nativeinstruments_ta6_mixers,
2239 				ARRAY_SIZE(snd_nativeinstruments_ta6_mixers));
2240 		break;
2241 
2242 	case USB_ID(0x17cc, 0x1021): /* Traktor Audio 10 */
2243 		err = snd_nativeinstruments_create_mixer(mixer,
2244 				snd_nativeinstruments_ta10_mixers,
2245 				ARRAY_SIZE(snd_nativeinstruments_ta10_mixers));
2246 		break;
2247 
2248 	case USB_ID(0x200c, 0x1018): /* Electrix Ebox-44 */
2249 		/* detection is disabled in mixer_maps.c */
2250 		err = snd_create_std_mono_table(mixer, ebox44_table);
2251 		break;
2252 
2253 	case USB_ID(0x1235, 0x8012): /* Focusrite Scarlett 6i6 */
2254 	case USB_ID(0x1235, 0x8002): /* Focusrite Scarlett 8i6 */
2255 	case USB_ID(0x1235, 0x8004): /* Focusrite Scarlett 18i6 */
2256 	case USB_ID(0x1235, 0x8014): /* Focusrite Scarlett 18i8 */
2257 	case USB_ID(0x1235, 0x800c): /* Focusrite Scarlett 18i20 */
2258 		err = snd_scarlett_controls_create(mixer);
2259 		break;
2260 
2261 	case USB_ID(0x041e, 0x323b): /* Creative Sound Blaster E1 */
2262 		err = snd_soundblaster_e1_switch_create(mixer);
2263 		break;
2264 	case USB_ID(0x0bda, 0x4014): /* Dell WD15 dock */
2265 		err = dell_dock_mixer_init(mixer);
2266 		break;
2267 
2268 	case USB_ID(0x2a39, 0x3fd2): /* RME ADI-2 Pro */
2269 	case USB_ID(0x2a39, 0x3fd3): /* RME ADI-2 DAC */
2270 	case USB_ID(0x2a39, 0x3fd4): /* RME */
2271 		err = snd_rme_controls_create(mixer);
2272 		break;
2273 	}
2274 
2275 	return err;
2276 }
2277 
2278 #ifdef CONFIG_PM
2279 void snd_usb_mixer_resume_quirk(struct usb_mixer_interface *mixer)
2280 {
2281 	switch (mixer->chip->usb_id) {
2282 	case USB_ID(0x0bda, 0x4014): /* Dell WD15 dock */
2283 		dell_dock_mixer_init(mixer);
2284 		break;
2285 	}
2286 }
2287 #endif
2288 
2289 void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
2290 				    int unitid)
2291 {
2292 	if (!mixer->rc_cfg)
2293 		return;
2294 	/* unit ids specific to Extigy/Audigy 2 NX: */
2295 	switch (unitid) {
2296 	case 0: /* remote control */
2297 		mixer->rc_urb->dev = mixer->chip->dev;
2298 		usb_submit_urb(mixer->rc_urb, GFP_ATOMIC);
2299 		break;
2300 	case 4: /* digital in jack */
2301 	case 7: /* line in jacks */
2302 	case 19: /* speaker out jacks */
2303 	case 20: /* headphones out jack */
2304 		break;
2305 	/* live24ext: 4 = line-in jack */
2306 	case 3:	/* hp-out jack (may actuate Mute) */
2307 		if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
2308 		    mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
2309 			snd_usb_mixer_notify_id(mixer, mixer->rc_cfg->mute_mixer_id);
2310 		break;
2311 	default:
2312 		usb_audio_dbg(mixer->chip, "memory change in unknown unit %d\n", unitid);
2313 		break;
2314 	}
2315 }
2316 
2317 static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer,
2318 					 struct usb_mixer_elem_info *cval,
2319 					 struct snd_kcontrol *kctl)
2320 {
2321 	/* Approximation using 10 ranges based on output measurement on hw v1.2.
2322 	 * This seems close to the cubic mapping e.g. alsamixer uses. */
2323 	static const DECLARE_TLV_DB_RANGE(scale,
2324 		 0,  1, TLV_DB_MINMAX_ITEM(-5300, -4970),
2325 		 2,  5, TLV_DB_MINMAX_ITEM(-4710, -4160),
2326 		 6,  7, TLV_DB_MINMAX_ITEM(-3884, -3710),
2327 		 8, 14, TLV_DB_MINMAX_ITEM(-3443, -2560),
2328 		15, 16, TLV_DB_MINMAX_ITEM(-2475, -2324),
2329 		17, 19, TLV_DB_MINMAX_ITEM(-2228, -2031),
2330 		20, 26, TLV_DB_MINMAX_ITEM(-1910, -1393),
2331 		27, 31, TLV_DB_MINMAX_ITEM(-1322, -1032),
2332 		32, 40, TLV_DB_MINMAX_ITEM(-968, -490),
2333 		41, 50, TLV_DB_MINMAX_ITEM(-441, 0),
2334 	);
2335 
2336 	if (cval->min == 0 && cval->max == 50) {
2337 		usb_audio_info(mixer->chip, "applying DragonFly dB scale quirk (0-50 variant)\n");
2338 		kctl->tlv.p = scale;
2339 		kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
2340 		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
2341 
2342 	} else if (cval->min == 0 && cval->max <= 1000) {
2343 		/* Some other clearly broken DragonFly variant.
2344 		 * At least a 0..53 variant (hw v1.0) exists.
2345 		 */
2346 		usb_audio_info(mixer->chip, "ignoring too narrow dB range on a DragonFly device");
2347 		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
2348 	}
2349 }
2350 
2351 void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
2352 				  struct usb_mixer_elem_info *cval, int unitid,
2353 				  struct snd_kcontrol *kctl)
2354 {
2355 	switch (mixer->chip->usb_id) {
2356 	case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */
2357 		if (unitid == 7 && cval->control == UAC_FU_VOLUME)
2358 			snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
2359 		break;
2360 	/* lowest playback value is muted on C-Media devices */
2361 	case USB_ID(0x0d8c, 0x000c):
2362 	case USB_ID(0x0d8c, 0x0014):
2363 		if (strstr(kctl->id.name, "Playback"))
2364 			cval->min_mute = 1;
2365 		break;
2366 	}
2367 }
2368 
2369