2 * (Tentative) USB Audio Driver for ALSA
6 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
8 * Many codes borrowed from audio.c by
9 * Alan Cox (alan@lxorguk.ukuu.org.uk)
10 * Thomas Sailer (sailer@ife.ee.ethz.ch)
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 #include <linux/bitops.h>
30 #include <linux/init.h>
31 #include <linux/list.h>
32 #include <linux/slab.h>
33 #include <linux/string.h>
34 #include <linux/usb.h>
35 #include <sound/core.h>
36 #include <sound/control.h>
37 #include <sound/hwdep.h>
38 #include <sound/info.h>
39 #include <sound/tlv.h>
46 /* ignore error from controls - for debugging */
47 /* #define IGNORE_CTL_ERROR */
50 * Sound Blaster remote control configuration
52 * format of remote control data:
54 * Audigy 2 NX: 06 80 xx 00 00 00
55 * Live! 24-bit: 06 80 xx yy 22 83
57 static const struct rc_config
{
62 u8 min_packet_length
; /* minimum accepted length of the URB result */
66 { USB_ID(0x041e, 0x3000), 0, 1, 2, 1, 18, 0x0013 }, /* Extigy */
67 { USB_ID(0x041e, 0x3020), 2, 1, 6, 6, 18, 0x0013 }, /* Audigy 2 NX */
68 { USB_ID(0x041e, 0x3040), 2, 2, 6, 6, 2, 0x6e91 }, /* Live! 24-bit */
69 { USB_ID(0x041e, 0x3048), 2, 2, 6, 6, 2, 0x6e91 }, /* Toshiba SB0500 */
72 struct usb_mixer_interface
{
73 struct snd_usb_audio
*chip
;
75 struct list_head list
;
76 unsigned int ignore_ctl_error
;
78 struct usb_mixer_elem_info
**id_elems
; /* array[256], indexed by unit id */
80 /* Sound Blaster remote control stuff */
81 const struct rc_config
*rc_cfg
;
83 wait_queue_head_t rc_waitq
;
85 struct usb_ctrlrequest
*rc_setup_packet
;
93 struct usb_audio_term
{
97 unsigned int chconfig
;
101 struct usbmix_name_map
;
104 struct snd_usb_audio
*chip
;
105 struct usb_mixer_interface
*mixer
;
106 unsigned char *buffer
;
108 DECLARE_BITMAP(unitbitmap
, 256);
109 struct usb_audio_term oterm
;
110 const struct usbmix_name_map
*map
;
111 const struct usbmix_selector_map
*selector_map
;
114 #define MAX_CHANNELS 10 /* max logical channels */
116 struct usb_mixer_elem_info
{
117 struct usb_mixer_interface
*mixer
;
118 struct usb_mixer_elem_info
*next_id_elem
; /* list of controls with same id */
119 struct snd_ctl_elem_id
*elem_id
;
121 unsigned int control
; /* CS or ICN (high byte) */
122 unsigned int cmask
; /* channel mask bitmap: 0 = master */
128 int cache_val
[MAX_CHANNELS
];
134 USB_FEATURE_NONE
= 0,
135 USB_FEATURE_MUTE
= 1,
143 USB_FEATURE_BASSBOOST
,
149 USB_MIXER_INV_BOOLEAN
,
158 USB_PROC_UPDOWN_SWITCH
= 1,
159 USB_PROC_UPDOWN_MODE_SEL
= 2,
161 USB_PROC_PROLOGIC
= 2,
162 USB_PROC_PROLOGIC_SWITCH
= 1,
163 USB_PROC_PROLOGIC_MODE_SEL
= 2,
166 USB_PROC_3DENH_SWITCH
= 1,
167 USB_PROC_3DENH_SPACE
= 2,
170 USB_PROC_REVERB_SWITCH
= 1,
171 USB_PROC_REVERB_LEVEL
= 2,
172 USB_PROC_REVERB_TIME
= 3,
173 USB_PROC_REVERB_DELAY
= 4,
176 USB_PROC_CHORUS_SWITCH
= 1,
177 USB_PROC_CHORUS_LEVEL
= 2,
178 USB_PROC_CHORUS_RATE
= 3,
179 USB_PROC_CHORUS_DEPTH
= 4,
182 USB_PROC_DCR_SWITCH
= 1,
183 USB_PROC_DCR_RATIO
= 2,
184 USB_PROC_DCR_MAX_AMP
= 3,
185 USB_PROC_DCR_THRESHOLD
= 4,
186 USB_PROC_DCR_ATTACK
= 5,
187 USB_PROC_DCR_RELEASE
= 6,
190 /*E-mu 0202(0404) eXtension Unit(XU) control*/
192 USB_XU_CLOCK_RATE
= 0xe301,
193 USB_XU_CLOCK_SOURCE
= 0xe302,
194 USB_XU_DIGITAL_IO_STATUS
= 0xe303,
195 USB_XU_DEVICE_OPTIONS
= 0xe304,
196 USB_XU_DIRECT_MONITORING
= 0xe305,
197 USB_XU_METERING
= 0xe306
200 USB_XU_CLOCK_SOURCE_SELECTOR
= 0x02, /* clock source*/
201 USB_XU_CLOCK_RATE_SELECTOR
= 0x03, /* clock rate */
202 USB_XU_DIGITAL_FORMAT_SELECTOR
= 0x01, /* the spdif format */
203 USB_XU_SOFT_LIMIT_SELECTOR
= 0x03 /* soft limiter */
207 * manual mapping of mixer names
208 * if the mixer topology is too complicated and the parsed names are
209 * ambiguous, add the entries in usbmixer_maps.c.
211 #include "usbmixer_maps.c"
213 static const struct usbmix_name_map
*
214 find_map(struct mixer_build
*state
, int unitid
, int control
)
216 const struct usbmix_name_map
*p
= state
->map
;
221 for (p
= state
->map
; p
->id
; p
++) {
222 if (p
->id
== unitid
&&
223 (!control
|| !p
->control
|| control
== p
->control
))
229 /* get the mapped name if the unit matches */
231 check_mapped_name(const struct usbmix_name_map
*p
, char *buf
, int buflen
)
237 return strlcpy(buf
, p
->name
, buflen
);
240 /* check whether the control should be ignored */
242 check_ignored_ctl(const struct usbmix_name_map
*p
)
244 if (!p
|| p
->name
|| p
->dB
)
250 static inline void check_mapped_dB(const struct usbmix_name_map
*p
,
251 struct usb_mixer_elem_info
*cval
)
254 cval
->dBmin
= p
->dB
->min
;
255 cval
->dBmax
= p
->dB
->max
;
259 /* get the mapped selector source name */
260 static int check_mapped_selector_name(struct mixer_build
*state
, int unitid
,
261 int index
, char *buf
, int buflen
)
263 const struct usbmix_selector_map
*p
;
265 if (! state
->selector_map
)
267 for (p
= state
->selector_map
; p
->id
; p
++) {
268 if (p
->id
== unitid
&& index
< p
->count
)
269 return strlcpy(buf
, p
->names
[index
], buflen
);
275 * find an audio control unit with the given unit id
277 static void *find_audio_control_unit(struct mixer_build
*state
, unsigned char unit
)
282 while ((p
= snd_usb_find_desc(state
->buffer
, state
->buflen
, p
,
283 USB_DT_CS_INTERFACE
)) != NULL
) {
284 if (p
[0] >= 4 && p
[2] >= INPUT_TERMINAL
&& p
[2] <= EXTENSION_UNIT
&& p
[3] == unit
)
292 * copy a string with the given id
294 static int snd_usb_copy_string_desc(struct mixer_build
*state
, int index
, char *buf
, int maxlen
)
296 int len
= usb_string(state
->chip
->dev
, index
, buf
, maxlen
- 1);
302 * convert from the byte/word on usb descriptor to the zero-based integer
304 static int convert_signed_value(struct usb_mixer_elem_info
*cval
, int val
)
306 switch (cval
->val_type
) {
307 case USB_MIXER_BOOLEAN
:
309 case USB_MIXER_INV_BOOLEAN
:
332 * convert from the zero-based int to the byte/word for usb descriptor
334 static int convert_bytes_value(struct usb_mixer_elem_info
*cval
, int val
)
336 switch (cval
->val_type
) {
337 case USB_MIXER_BOOLEAN
:
339 case USB_MIXER_INV_BOOLEAN
:
348 return 0; /* not reached */
351 static int get_relative_value(struct usb_mixer_elem_info
*cval
, int val
)
357 else if (val
>= cval
->max
)
358 return (cval
->max
- cval
->min
+ cval
->res
- 1) / cval
->res
;
360 return (val
- cval
->min
) / cval
->res
;
363 static int get_abs_value(struct usb_mixer_elem_info
*cval
, int val
)
378 * retrieve a mixer value
381 static int get_ctl_value(struct usb_mixer_elem_info
*cval
, int request
, int validx
, int *value_ret
)
383 unsigned char buf
[2];
384 int val_len
= cval
->val_type
>= USB_MIXER_S16
? 2 : 1;
387 while (timeout
-- > 0) {
388 if (snd_usb_ctl_msg(cval
->mixer
->chip
->dev
,
389 usb_rcvctrlpipe(cval
->mixer
->chip
->dev
, 0),
391 USB_RECIP_INTERFACE
| USB_TYPE_CLASS
| USB_DIR_IN
,
392 validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8),
393 buf
, val_len
, 100) >= val_len
) {
394 *value_ret
= convert_signed_value(cval
, snd_usb_combine_bytes(buf
, val_len
));
398 snd_printdd(KERN_ERR
"cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
399 request
, validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8), cval
->val_type
);
403 static int get_cur_ctl_value(struct usb_mixer_elem_info
*cval
, int validx
, int *value
)
405 return get_ctl_value(cval
, GET_CUR
, validx
, value
);
408 /* channel = 0: master, 1 = first channel */
409 static inline int get_cur_mix_raw(struct usb_mixer_elem_info
*cval
,
410 int channel
, int *value
)
412 return get_ctl_value(cval
, GET_CUR
, (cval
->control
<< 8) | channel
, value
);
415 static int get_cur_mix_value(struct usb_mixer_elem_info
*cval
,
416 int channel
, int index
, int *value
)
420 if (cval
->cached
& (1 << channel
)) {
421 *value
= cval
->cache_val
[index
];
424 err
= get_cur_mix_raw(cval
, channel
, value
);
426 if (!cval
->mixer
->ignore_ctl_error
)
427 snd_printd(KERN_ERR
"cannot get current value for "
428 "control %d ch %d: err = %d\n",
429 cval
->control
, channel
, err
);
432 cval
->cached
|= 1 << channel
;
433 cval
->cache_val
[index
] = *value
;
442 static int set_ctl_value(struct usb_mixer_elem_info
*cval
, int request
, int validx
, int value_set
)
444 unsigned char buf
[2];
445 int val_len
= cval
->val_type
>= USB_MIXER_S16
? 2 : 1;
448 value_set
= convert_bytes_value(cval
, value_set
);
449 buf
[0] = value_set
& 0xff;
450 buf
[1] = (value_set
>> 8) & 0xff;
451 while (timeout
-- > 0)
452 if (snd_usb_ctl_msg(cval
->mixer
->chip
->dev
,
453 usb_sndctrlpipe(cval
->mixer
->chip
->dev
, 0),
455 USB_RECIP_INTERFACE
| USB_TYPE_CLASS
| USB_DIR_OUT
,
456 validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8),
457 buf
, val_len
, 100) >= 0)
459 snd_printdd(KERN_ERR
"cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n",
460 request
, validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8), cval
->val_type
, buf
[0], buf
[1]);
464 static int set_cur_ctl_value(struct usb_mixer_elem_info
*cval
, int validx
, int value
)
466 return set_ctl_value(cval
, SET_CUR
, validx
, value
);
469 static int set_cur_mix_value(struct usb_mixer_elem_info
*cval
, int channel
,
470 int index
, int value
)
473 err
= set_ctl_value(cval
, SET_CUR
, (cval
->control
<< 8) | channel
,
477 cval
->cached
|= 1 << channel
;
478 cval
->cache_val
[index
] = value
;
483 * TLV callback for mixer volume controls
485 static int mixer_vol_tlv(struct snd_kcontrol
*kcontrol
, int op_flag
,
486 unsigned int size
, unsigned int __user
*_tlv
)
488 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
489 DECLARE_TLV_DB_MINMAX(scale
, 0, 0);
491 if (size
< sizeof(scale
))
493 scale
[2] = cval
->dBmin
;
494 scale
[3] = cval
->dBmax
;
495 if (copy_to_user(_tlv
, scale
, sizeof(scale
)))
501 * parser routines begin here...
504 static int parse_audio_unit(struct mixer_build
*state
, int unitid
);
508 * check if the input/output channel routing is enabled on the given bitmap.
509 * used for mixer unit parser
511 static int check_matrix_bitmap(unsigned char *bmap
, int ich
, int och
, int num_outs
)
513 int idx
= ich
* num_outs
+ och
;
514 return bmap
[idx
>> 3] & (0x80 >> (idx
& 7));
519 * add an alsa control element
520 * search and increment the index until an empty slot is found.
522 * if failed, give up and free the control instance.
525 static int add_control_to_empty(struct mixer_build
*state
, struct snd_kcontrol
*kctl
)
527 struct usb_mixer_elem_info
*cval
= kctl
->private_data
;
530 while (snd_ctl_find_id(state
->chip
->card
, &kctl
->id
))
532 if ((err
= snd_ctl_add(state
->chip
->card
, kctl
)) < 0) {
533 snd_printd(KERN_ERR
"cannot add control (err = %d)\n", err
);
536 cval
->elem_id
= &kctl
->id
;
537 cval
->next_id_elem
= state
->mixer
->id_elems
[cval
->id
];
538 state
->mixer
->id_elems
[cval
->id
] = cval
;
544 * get a terminal name string
547 static struct iterm_name_combo
{
551 { 0x0300, "Output" },
552 { 0x0301, "Speaker" },
553 { 0x0302, "Headphone" },
554 { 0x0303, "HMD Audio" },
555 { 0x0304, "Desktop Speaker" },
556 { 0x0305, "Room Speaker" },
557 { 0x0306, "Com Speaker" },
559 { 0x0600, "External In" },
560 { 0x0601, "Analog In" },
561 { 0x0602, "Digital In" },
563 { 0x0604, "Legacy In" },
564 { 0x0605, "IEC958 In" },
565 { 0x0606, "1394 DA Stream" },
566 { 0x0607, "1394 DV Stream" },
567 { 0x0700, "Embedded" },
568 { 0x0701, "Noise Source" },
569 { 0x0702, "Equalization Noise" },
573 { 0x0706, "MiniDisk" },
574 { 0x0707, "Analog Tape" },
575 { 0x0708, "Phonograph" },
576 { 0x0709, "VCR Audio" },
577 { 0x070a, "Video Disk Audio" },
578 { 0x070b, "DVD Audio" },
579 { 0x070c, "TV Tuner Audio" },
580 { 0x070d, "Satellite Rec Audio" },
581 { 0x070e, "Cable Tuner Audio" },
582 { 0x070f, "DSS Audio" },
583 { 0x0710, "Radio Receiver" },
584 { 0x0711, "Radio Transmitter" },
585 { 0x0712, "Multi-Track Recorder" },
586 { 0x0713, "Synthesizer" },
590 static int get_term_name(struct mixer_build
*state
, struct usb_audio_term
*iterm
,
591 unsigned char *name
, int maxlen
, int term_only
)
593 struct iterm_name_combo
*names
;
596 return snd_usb_copy_string_desc(state
, iterm
->name
, name
, maxlen
);
598 /* virtual type - not a real terminal */
599 if (iterm
->type
>> 16) {
602 switch (iterm
->type
>> 16) {
604 strcpy(name
, "Selector"); return 8;
605 case PROCESSING_UNIT
:
606 strcpy(name
, "Process Unit"); return 12;
608 strcpy(name
, "Ext Unit"); return 8;
610 strcpy(name
, "Mixer"); return 5;
612 return sprintf(name
, "Unit %d", iterm
->id
);
616 switch (iterm
->type
& 0xff00) {
618 strcpy(name
, "PCM"); return 3;
620 strcpy(name
, "Mic"); return 3;
622 strcpy(name
, "Headset"); return 7;
624 strcpy(name
, "Phone"); return 5;
627 for (names
= iterm_names
; names
->type
; names
++)
628 if (names
->type
== iterm
->type
) {
629 strcpy(name
, names
->name
);
630 return strlen(names
->name
);
637 * parse the source unit recursively until it reaches to a terminal
638 * or a branched unit.
640 static int check_input_term(struct mixer_build
*state
, int id
, struct usb_audio_term
*term
)
644 memset(term
, 0, sizeof(*term
));
645 while ((p1
= find_audio_control_unit(state
, id
)) != NULL
) {
649 term
->type
= combine_word(p1
+ 4);
650 term
->channels
= p1
[7];
651 term
->chconfig
= combine_word(p1
+ 8);
656 break; /* continue to parse */
658 term
->type
= p1
[2] << 16; /* virtual type */
659 term
->channels
= p1
[5 + p1
[4]];
660 term
->chconfig
= combine_word(p1
+ 6 + p1
[4]);
661 term
->name
= p1
[p1
[0] - 1];
664 /* call recursively to retrieve the channel info */
665 if (check_input_term(state
, p1
[5], term
) < 0)
667 term
->type
= p1
[2] << 16; /* virtual type */
669 term
->name
= p1
[9 + p1
[0] - 1];
671 case PROCESSING_UNIT
:
675 break; /* continue to parse */
677 term
->type
= p1
[2] << 16; /* virtual type */
678 term
->channels
= p1
[7 + p1
[6]];
679 term
->chconfig
= combine_word(p1
+ 8 + p1
[6]);
680 term
->name
= p1
[12 + p1
[6] + p1
[11 + p1
[6]]];
694 /* feature unit control information */
695 struct usb_feature_control_info
{
697 unsigned int type
; /* control type (mute, volume, etc.) */
700 static struct usb_feature_control_info audio_feature_info
[] = {
701 { "Mute", USB_MIXER_INV_BOOLEAN
},
702 { "Volume", USB_MIXER_S16
},
703 { "Tone Control - Bass", USB_MIXER_S8
},
704 { "Tone Control - Mid", USB_MIXER_S8
},
705 { "Tone Control - Treble", USB_MIXER_S8
},
706 { "Graphic Equalizer", USB_MIXER_S8
}, /* FIXME: not implemeted yet */
707 { "Auto Gain Control", USB_MIXER_BOOLEAN
},
708 { "Delay Control", USB_MIXER_U16
},
709 { "Bass Boost", USB_MIXER_BOOLEAN
},
710 { "Loudness", USB_MIXER_BOOLEAN
},
714 /* private_free callback */
715 static void usb_mixer_elem_free(struct snd_kcontrol
*kctl
)
717 kfree(kctl
->private_data
);
718 kctl
->private_data
= NULL
;
723 * interface to ALSA control for feature/mixer units
727 * retrieve the minimum and maximum values for the specified control
729 static int get_min_max(struct usb_mixer_elem_info
*cval
, int default_min
)
732 cval
->min
= default_min
;
733 cval
->max
= cval
->min
+ 1;
735 cval
->dBmin
= cval
->dBmax
= 0;
737 if (cval
->val_type
== USB_MIXER_BOOLEAN
||
738 cval
->val_type
== USB_MIXER_INV_BOOLEAN
) {
739 cval
->initialized
= 1;
744 for (i
= 0; i
< MAX_CHANNELS
; i
++)
745 if (cval
->cmask
& (1 << i
)) {
750 if (get_ctl_value(cval
, GET_MAX
, (cval
->control
<< 8) | minchn
, &cval
->max
) < 0 ||
751 get_ctl_value(cval
, GET_MIN
, (cval
->control
<< 8) | minchn
, &cval
->min
) < 0) {
752 snd_printd(KERN_ERR
"%d:%d: cannot get min/max values for control %d (id %d)\n",
753 cval
->id
, cval
->mixer
->ctrlif
, cval
->control
, cval
->id
);
756 if (get_ctl_value(cval
, GET_RES
, (cval
->control
<< 8) | minchn
, &cval
->res
) < 0) {
759 int last_valid_res
= cval
->res
;
761 while (cval
->res
> 1) {
762 if (set_ctl_value(cval
, SET_RES
, (cval
->control
<< 8) | minchn
, cval
->res
/ 2) < 0)
766 if (get_ctl_value(cval
, GET_RES
, (cval
->control
<< 8) | minchn
, &cval
->res
) < 0)
767 cval
->res
= last_valid_res
;
772 /* Additional checks for the proper resolution
774 * Some devices report smaller resolutions than actually
775 * reacting. They don't return errors but simply clip
776 * to the lower aligned value.
778 if (cval
->min
+ cval
->res
< cval
->max
) {
779 int last_valid_res
= cval
->res
;
780 int saved
, test
, check
;
781 get_cur_mix_raw(cval
, minchn
, &saved
);
784 if (test
< cval
->max
)
788 if (test
< cval
->min
|| test
> cval
->max
||
789 set_cur_mix_value(cval
, minchn
, 0, test
) ||
790 get_cur_mix_raw(cval
, minchn
, &check
)) {
791 cval
->res
= last_valid_res
;
798 set_cur_mix_value(cval
, minchn
, 0, saved
);
801 cval
->initialized
= 1;
804 /* USB descriptions contain the dB scale in 1/256 dB unit
805 * while ALSA TLV contains in 1/100 dB unit
807 cval
->dBmin
= (convert_signed_value(cval
, cval
->min
) * 100) / 256;
808 cval
->dBmax
= (convert_signed_value(cval
, cval
->max
) * 100) / 256;
809 if (cval
->dBmin
> cval
->dBmax
) {
810 /* something is wrong; assume it's either from/to 0dB */
813 else if (cval
->dBmin
> 0)
815 if (cval
->dBmin
> cval
->dBmax
) {
816 /* totally crap, return an error */
825 /* get a feature/mixer unit info */
826 static int mixer_ctl_feature_info(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_info
*uinfo
)
828 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
830 if (cval
->val_type
== USB_MIXER_BOOLEAN
||
831 cval
->val_type
== USB_MIXER_INV_BOOLEAN
)
832 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_BOOLEAN
;
834 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
835 uinfo
->count
= cval
->channels
;
836 if (cval
->val_type
== USB_MIXER_BOOLEAN
||
837 cval
->val_type
== USB_MIXER_INV_BOOLEAN
) {
838 uinfo
->value
.integer
.min
= 0;
839 uinfo
->value
.integer
.max
= 1;
841 if (! cval
->initialized
)
842 get_min_max(cval
, 0);
843 uinfo
->value
.integer
.min
= 0;
844 uinfo
->value
.integer
.max
=
845 (cval
->max
- cval
->min
+ cval
->res
- 1) / cval
->res
;
850 /* get the current value from feature/mixer unit */
851 static int mixer_ctl_feature_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
853 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
854 int c
, cnt
, val
, err
;
856 ucontrol
->value
.integer
.value
[0] = cval
->min
;
859 for (c
= 0; c
< MAX_CHANNELS
; c
++) {
860 if (!(cval
->cmask
& (1 << c
)))
862 err
= get_cur_mix_value(cval
, c
+ 1, cnt
, &val
);
864 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
865 val
= get_relative_value(cval
, val
);
866 ucontrol
->value
.integer
.value
[cnt
] = val
;
872 err
= get_cur_mix_value(cval
, 0, 0, &val
);
874 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
875 val
= get_relative_value(cval
, val
);
876 ucontrol
->value
.integer
.value
[0] = val
;
881 /* put the current value to feature/mixer unit */
882 static int mixer_ctl_feature_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
884 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
885 int c
, cnt
, val
, oval
, err
;
890 for (c
= 0; c
< MAX_CHANNELS
; c
++) {
891 if (!(cval
->cmask
& (1 << c
)))
893 err
= get_cur_mix_value(cval
, c
+ 1, cnt
, &oval
);
895 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
896 val
= ucontrol
->value
.integer
.value
[cnt
];
897 val
= get_abs_value(cval
, val
);
899 set_cur_mix_value(cval
, c
+ 1, cnt
, val
);
906 err
= get_cur_mix_value(cval
, 0, 0, &oval
);
908 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
909 val
= ucontrol
->value
.integer
.value
[0];
910 val
= get_abs_value(cval
, val
);
912 set_cur_mix_value(cval
, 0, 0, val
);
919 static struct snd_kcontrol_new usb_feature_unit_ctl
= {
920 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
921 .name
= "", /* will be filled later manually */
922 .info
= mixer_ctl_feature_info
,
923 .get
= mixer_ctl_feature_get
,
924 .put
= mixer_ctl_feature_put
,
929 * build a feature control
932 static size_t append_ctl_name(struct snd_kcontrol
*kctl
, const char *str
)
934 return strlcat(kctl
->id
.name
, str
, sizeof(kctl
->id
.name
));
937 static void build_feature_ctl(struct mixer_build
*state
, unsigned char *desc
,
938 unsigned int ctl_mask
, int control
,
939 struct usb_audio_term
*iterm
, int unitid
)
941 unsigned int len
= 0;
943 int nameid
= desc
[desc
[0] - 1];
944 struct snd_kcontrol
*kctl
;
945 struct usb_mixer_elem_info
*cval
;
946 const struct usbmix_name_map
*map
;
948 control
++; /* change from zero-based to 1-based value */
950 if (control
== USB_FEATURE_GEQ
) {
951 /* FIXME: not supported yet */
955 map
= find_map(state
, unitid
, control
);
956 if (check_ignored_ctl(map
))
959 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
961 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
964 cval
->mixer
= state
->mixer
;
966 cval
->control
= control
;
967 cval
->cmask
= ctl_mask
;
968 cval
->val_type
= audio_feature_info
[control
-1].type
;
970 cval
->channels
= 1; /* master channel */
973 for (i
= 0; i
< 16; i
++)
974 if (ctl_mask
& (1 << i
))
979 /* get min/max values */
980 get_min_max(cval
, 0);
982 kctl
= snd_ctl_new1(&usb_feature_unit_ctl
, cval
);
984 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
988 kctl
->private_free
= usb_mixer_elem_free
;
990 len
= check_mapped_name(map
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
991 mapped_name
= len
!= 0;
993 len
= snd_usb_copy_string_desc(state
, nameid
,
994 kctl
->id
.name
, sizeof(kctl
->id
.name
));
997 case USB_FEATURE_MUTE
:
998 case USB_FEATURE_VOLUME
:
999 /* determine the control name. the rule is:
1000 * - if a name id is given in descriptor, use it.
1001 * - if the connected input can be determined, then use the name
1003 * - if the connected output can be determined, use it.
1004 * - otherwise, anonymous name.
1007 len
= get_term_name(state
, iterm
, kctl
->id
.name
, sizeof(kctl
->id
.name
), 1);
1009 len
= get_term_name(state
, &state
->oterm
, kctl
->id
.name
, sizeof(kctl
->id
.name
), 1);
1011 len
= snprintf(kctl
->id
.name
, sizeof(kctl
->id
.name
),
1012 "Feature %d", unitid
);
1014 /* determine the stream direction:
1015 * if the connected output is USB stream, then it's likely a
1016 * capture stream. otherwise it should be playback (hopefully :)
1018 if (! mapped_name
&& ! (state
->oterm
.type
>> 16)) {
1019 if ((state
->oterm
.type
& 0xff00) == 0x0100) {
1020 len
= append_ctl_name(kctl
, " Capture");
1022 len
= append_ctl_name(kctl
, " Playback");
1025 append_ctl_name(kctl
, control
== USB_FEATURE_MUTE
?
1026 " Switch" : " Volume");
1027 if (control
== USB_FEATURE_VOLUME
) {
1028 kctl
->tlv
.c
= mixer_vol_tlv
;
1029 kctl
->vd
[0].access
|=
1030 SNDRV_CTL_ELEM_ACCESS_TLV_READ
|
1031 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK
;
1032 check_mapped_dB(map
, cval
);
1038 strlcpy(kctl
->id
.name
, audio_feature_info
[control
-1].name
,
1039 sizeof(kctl
->id
.name
));
1043 /* volume control quirks */
1044 switch (state
->chip
->usb_id
) {
1045 case USB_ID(0x0471, 0x0101):
1046 case USB_ID(0x0471, 0x0104):
1047 case USB_ID(0x0471, 0x0105):
1048 case USB_ID(0x0672, 0x1041):
1049 /* quirk for UDA1321/N101.
1050 * note that detection between firmware 2.1.1.7 (N101)
1051 * and later 2.1.1.21 is not very clear from datasheets.
1052 * I hope that the min value is -15360 for newer firmware --jk
1054 if (!strcmp(kctl
->id
.name
, "PCM Playback Volume") &&
1055 cval
->min
== -15616) {
1056 snd_printk(KERN_INFO
1057 "set volume quirk for UDA1321/N101 chip\n");
1062 case USB_ID(0x046d, 0x09a4):
1063 if (!strcmp(kctl
->id
.name
, "Mic Capture Volume")) {
1064 snd_printk(KERN_INFO
1065 "set volume quirk for QuickCam E3500\n");
1074 snd_printdd(KERN_INFO
"[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
1075 cval
->id
, kctl
->id
.name
, cval
->channels
, cval
->min
, cval
->max
, cval
->res
);
1076 add_control_to_empty(state
, kctl
);
1082 * parse a feature unit
1084 * most of controlls are defined here.
1086 static int parse_audio_feature_unit(struct mixer_build
*state
, int unitid
, unsigned char *ftr
)
1089 struct usb_audio_term iterm
;
1090 unsigned int master_bits
, first_ch_bits
;
1093 if (ftr
[0] < 7 || ! (csize
= ftr
[5]) || ftr
[0] < 7 + csize
) {
1094 snd_printk(KERN_ERR
"usbaudio: unit %u: invalid FEATURE_UNIT descriptor\n", unitid
);
1098 /* parse the source unit */
1099 if ((err
= parse_audio_unit(state
, ftr
[4])) < 0)
1102 /* determine the input source type and name */
1103 if (check_input_term(state
, ftr
[4], &iterm
) < 0)
1106 channels
= (ftr
[0] - 7) / csize
- 1;
1108 master_bits
= snd_usb_combine_bytes(ftr
+ 6, csize
);
1109 /* master configuration quirks */
1110 switch (state
->chip
->usb_id
) {
1111 case USB_ID(0x08bb, 0x2702):
1112 snd_printk(KERN_INFO
1113 "usbmixer: master volume quirk for PCM2702 chip\n");
1114 /* disable non-functional volume control */
1115 master_bits
&= ~(1 << (USB_FEATURE_VOLUME
- 1));
1119 first_ch_bits
= snd_usb_combine_bytes(ftr
+ 6 + csize
, csize
);
1122 /* check all control types */
1123 for (i
= 0; i
< 10; i
++) {
1124 unsigned int ch_bits
= 0;
1125 for (j
= 0; j
< channels
; j
++) {
1126 unsigned int mask
= snd_usb_combine_bytes(ftr
+ 6 + csize
* (j
+1), csize
);
1127 if (mask
& (1 << i
))
1128 ch_bits
|= (1 << j
);
1130 if (ch_bits
& 1) /* the first channel must be set (for ease of programming) */
1131 build_feature_ctl(state
, ftr
, ch_bits
, i
, &iterm
, unitid
);
1132 if (master_bits
& (1 << i
))
1133 build_feature_ctl(state
, ftr
, 0, i
, &iterm
, unitid
);
1145 * build a mixer unit control
1147 * the callbacks are identical with feature unit.
1148 * input channel number (zero based) is given in control field instead.
1151 static void build_mixer_unit_ctl(struct mixer_build
*state
, unsigned char *desc
,
1152 int in_pin
, int in_ch
, int unitid
,
1153 struct usb_audio_term
*iterm
)
1155 struct usb_mixer_elem_info
*cval
;
1156 unsigned int input_pins
= desc
[4];
1157 unsigned int num_outs
= desc
[5 + input_pins
];
1158 unsigned int i
, len
;
1159 struct snd_kcontrol
*kctl
;
1160 const struct usbmix_name_map
*map
;
1162 map
= find_map(state
, unitid
, 0);
1163 if (check_ignored_ctl(map
))
1166 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
1170 cval
->mixer
= state
->mixer
;
1172 cval
->control
= in_ch
+ 1; /* based on 1 */
1173 cval
->val_type
= USB_MIXER_S16
;
1174 for (i
= 0; i
< num_outs
; i
++) {
1175 if (check_matrix_bitmap(desc
+ 9 + input_pins
, in_ch
, i
, num_outs
)) {
1176 cval
->cmask
|= (1 << i
);
1181 /* get min/max values */
1182 get_min_max(cval
, 0);
1184 kctl
= snd_ctl_new1(&usb_feature_unit_ctl
, cval
);
1186 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1190 kctl
->private_free
= usb_mixer_elem_free
;
1192 len
= check_mapped_name(map
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1194 len
= get_term_name(state
, iterm
, kctl
->id
.name
, sizeof(kctl
->id
.name
), 0);
1196 len
= sprintf(kctl
->id
.name
, "Mixer Source %d", in_ch
+ 1);
1197 append_ctl_name(kctl
, " Volume");
1199 snd_printdd(KERN_INFO
"[%d] MU [%s] ch = %d, val = %d/%d\n",
1200 cval
->id
, kctl
->id
.name
, cval
->channels
, cval
->min
, cval
->max
);
1201 add_control_to_empty(state
, kctl
);
1206 * parse a mixer unit
1208 static int parse_audio_mixer_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1210 struct usb_audio_term iterm
;
1211 int input_pins
, num_ins
, num_outs
;
1214 if (desc
[0] < 11 || ! (input_pins
= desc
[4]) || ! (num_outs
= desc
[5 + input_pins
])) {
1215 snd_printk(KERN_ERR
"invalid MIXER UNIT descriptor %d\n", unitid
);
1218 /* no bmControls field (e.g. Maya44) -> ignore */
1219 if (desc
[0] <= 10 + input_pins
) {
1220 snd_printdd(KERN_INFO
"MU %d has no bmControls field\n", unitid
);
1226 for (pin
= 0; pin
< input_pins
; pin
++) {
1227 err
= parse_audio_unit(state
, desc
[5 + pin
]);
1230 err
= check_input_term(state
, desc
[5 + pin
], &iterm
);
1233 num_ins
+= iterm
.channels
;
1234 for (; ich
< num_ins
; ++ich
) {
1235 int och
, ich_has_controls
= 0;
1237 for (och
= 0; och
< num_outs
; ++och
) {
1238 if (check_matrix_bitmap(desc
+ 9 + input_pins
,
1239 ich
, och
, num_outs
)) {
1240 ich_has_controls
= 1;
1244 if (ich_has_controls
)
1245 build_mixer_unit_ctl(state
, desc
, pin
, ich
,
1254 * Processing Unit / Extension Unit
1257 /* get callback for processing/extension unit */
1258 static int mixer_ctl_procunit_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1260 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1263 err
= get_cur_ctl_value(cval
, cval
->control
<< 8, &val
);
1264 if (err
< 0 && cval
->mixer
->ignore_ctl_error
) {
1265 ucontrol
->value
.integer
.value
[0] = cval
->min
;
1270 val
= get_relative_value(cval
, val
);
1271 ucontrol
->value
.integer
.value
[0] = val
;
1275 /* put callback for processing/extension unit */
1276 static int mixer_ctl_procunit_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1278 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1281 err
= get_cur_ctl_value(cval
, cval
->control
<< 8, &oval
);
1283 if (cval
->mixer
->ignore_ctl_error
)
1287 val
= ucontrol
->value
.integer
.value
[0];
1288 val
= get_abs_value(cval
, val
);
1290 set_cur_ctl_value(cval
, cval
->control
<< 8, val
);
1296 /* alsa control interface for processing/extension unit */
1297 static struct snd_kcontrol_new mixer_procunit_ctl
= {
1298 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1299 .name
= "", /* will be filled later */
1300 .info
= mixer_ctl_feature_info
,
1301 .get
= mixer_ctl_procunit_get
,
1302 .put
= mixer_ctl_procunit_put
,
1307 * predefined data for processing units
1309 struct procunit_value_info
{
1316 struct procunit_info
{
1319 struct procunit_value_info
*values
;
1322 static struct procunit_value_info updown_proc_info
[] = {
1323 { USB_PROC_UPDOWN_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1324 { USB_PROC_UPDOWN_MODE_SEL
, "Mode Select", USB_MIXER_U8
, 1 },
1327 static struct procunit_value_info prologic_proc_info
[] = {
1328 { USB_PROC_PROLOGIC_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1329 { USB_PROC_PROLOGIC_MODE_SEL
, "Mode Select", USB_MIXER_U8
, 1 },
1332 static struct procunit_value_info threed_enh_proc_info
[] = {
1333 { USB_PROC_3DENH_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1334 { USB_PROC_3DENH_SPACE
, "Spaciousness", USB_MIXER_U8
},
1337 static struct procunit_value_info reverb_proc_info
[] = {
1338 { USB_PROC_REVERB_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1339 { USB_PROC_REVERB_LEVEL
, "Level", USB_MIXER_U8
},
1340 { USB_PROC_REVERB_TIME
, "Time", USB_MIXER_U16
},
1341 { USB_PROC_REVERB_DELAY
, "Delay", USB_MIXER_U8
},
1344 static struct procunit_value_info chorus_proc_info
[] = {
1345 { USB_PROC_CHORUS_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1346 { USB_PROC_CHORUS_LEVEL
, "Level", USB_MIXER_U8
},
1347 { USB_PROC_CHORUS_RATE
, "Rate", USB_MIXER_U16
},
1348 { USB_PROC_CHORUS_DEPTH
, "Depth", USB_MIXER_U16
},
1351 static struct procunit_value_info dcr_proc_info
[] = {
1352 { USB_PROC_DCR_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1353 { USB_PROC_DCR_RATIO
, "Ratio", USB_MIXER_U16
},
1354 { USB_PROC_DCR_MAX_AMP
, "Max Amp", USB_MIXER_S16
},
1355 { USB_PROC_DCR_THRESHOLD
, "Threshold", USB_MIXER_S16
},
1356 { USB_PROC_DCR_ATTACK
, "Attack Time", USB_MIXER_U16
},
1357 { USB_PROC_DCR_RELEASE
, "Release Time", USB_MIXER_U16
},
1361 static struct procunit_info procunits
[] = {
1362 { USB_PROC_UPDOWN
, "Up Down", updown_proc_info
},
1363 { USB_PROC_PROLOGIC
, "Dolby Prologic", prologic_proc_info
},
1364 { USB_PROC_3DENH
, "3D Stereo Extender", threed_enh_proc_info
},
1365 { USB_PROC_REVERB
, "Reverb", reverb_proc_info
},
1366 { USB_PROC_CHORUS
, "Chorus", chorus_proc_info
},
1367 { USB_PROC_DCR
, "DCR", dcr_proc_info
},
1371 * predefined data for extension units
1373 static struct procunit_value_info clock_rate_xu_info
[] = {
1374 { USB_XU_CLOCK_RATE_SELECTOR
, "Selector", USB_MIXER_U8
, 0 },
1377 static struct procunit_value_info clock_source_xu_info
[] = {
1378 { USB_XU_CLOCK_SOURCE_SELECTOR
, "External", USB_MIXER_BOOLEAN
},
1381 static struct procunit_value_info spdif_format_xu_info
[] = {
1382 { USB_XU_DIGITAL_FORMAT_SELECTOR
, "SPDIF/AC3", USB_MIXER_BOOLEAN
},
1385 static struct procunit_value_info soft_limit_xu_info
[] = {
1386 { USB_XU_SOFT_LIMIT_SELECTOR
, " ", USB_MIXER_BOOLEAN
},
1389 static struct procunit_info extunits
[] = {
1390 { USB_XU_CLOCK_RATE
, "Clock rate", clock_rate_xu_info
},
1391 { USB_XU_CLOCK_SOURCE
, "DigitalIn CLK source", clock_source_xu_info
},
1392 { USB_XU_DIGITAL_IO_STATUS
, "DigitalOut format:", spdif_format_xu_info
},
1393 { USB_XU_DEVICE_OPTIONS
, "AnalogueIn Soft Limit", soft_limit_xu_info
},
1397 * build a processing/extension unit
1399 static int build_audio_procunit(struct mixer_build
*state
, int unitid
, unsigned char *dsc
, struct procunit_info
*list
, char *name
)
1401 int num_ins
= dsc
[6];
1402 struct usb_mixer_elem_info
*cval
;
1403 struct snd_kcontrol
*kctl
;
1404 int i
, err
, nameid
, type
, len
;
1405 struct procunit_info
*info
;
1406 struct procunit_value_info
*valinfo
;
1407 const struct usbmix_name_map
*map
;
1408 static struct procunit_value_info default_value_info
[] = {
1409 { 0x01, "Switch", USB_MIXER_BOOLEAN
},
1412 static struct procunit_info default_info
= {
1413 0, NULL
, default_value_info
1416 if (dsc
[0] < 13 || dsc
[0] < 13 + num_ins
|| dsc
[0] < num_ins
+ dsc
[11 + num_ins
]) {
1417 snd_printk(KERN_ERR
"invalid %s descriptor (id %d)\n", name
, unitid
);
1421 for (i
= 0; i
< num_ins
; i
++) {
1422 if ((err
= parse_audio_unit(state
, dsc
[7 + i
])) < 0)
1426 type
= combine_word(&dsc
[4]);
1427 for (info
= list
; info
&& info
->type
; info
++)
1428 if (info
->type
== type
)
1430 if (! info
|| ! info
->type
)
1431 info
= &default_info
;
1433 for (valinfo
= info
->values
; valinfo
->control
; valinfo
++) {
1434 /* FIXME: bitmap might be longer than 8bit */
1435 if (! (dsc
[12 + num_ins
] & (1 << (valinfo
->control
- 1))))
1437 map
= find_map(state
, unitid
, valinfo
->control
);
1438 if (check_ignored_ctl(map
))
1440 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
1442 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1445 cval
->mixer
= state
->mixer
;
1447 cval
->control
= valinfo
->control
;
1448 cval
->val_type
= valinfo
->val_type
;
1451 /* get min/max values */
1452 if (type
== USB_PROC_UPDOWN
&& cval
->control
== USB_PROC_UPDOWN_MODE_SEL
) {
1453 /* FIXME: hard-coded */
1455 cval
->max
= dsc
[15];
1457 cval
->initialized
= 1;
1459 if (type
== USB_XU_CLOCK_RATE
) {
1460 /* E-Mu USB 0404/0202/TrackerPre
1461 * samplerate control quirk
1466 cval
->initialized
= 1;
1468 get_min_max(cval
, valinfo
->min_value
);
1471 kctl
= snd_ctl_new1(&mixer_procunit_ctl
, cval
);
1473 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1477 kctl
->private_free
= usb_mixer_elem_free
;
1479 if (check_mapped_name(map
, kctl
->id
.name
,
1480 sizeof(kctl
->id
.name
)))
1482 else if (info
->name
)
1483 strlcpy(kctl
->id
.name
, info
->name
, sizeof(kctl
->id
.name
));
1485 nameid
= dsc
[12 + num_ins
+ dsc
[11 + num_ins
]];
1488 len
= snd_usb_copy_string_desc(state
, nameid
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1490 strlcpy(kctl
->id
.name
, name
, sizeof(kctl
->id
.name
));
1492 append_ctl_name(kctl
, " ");
1493 append_ctl_name(kctl
, valinfo
->suffix
);
1495 snd_printdd(KERN_INFO
"[%d] PU [%s] ch = %d, val = %d/%d\n",
1496 cval
->id
, kctl
->id
.name
, cval
->channels
, cval
->min
, cval
->max
);
1497 if ((err
= add_control_to_empty(state
, kctl
)) < 0)
1504 static int parse_audio_processing_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1506 return build_audio_procunit(state
, unitid
, desc
, procunits
, "Processing Unit");
1509 static int parse_audio_extension_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1511 return build_audio_procunit(state
, unitid
, desc
, extunits
, "Extension Unit");
1519 /* info callback for selector unit
1520 * use an enumerator type for routing
1522 static int mixer_ctl_selector_info(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_info
*uinfo
)
1524 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1525 char **itemlist
= (char **)kcontrol
->private_value
;
1527 if (snd_BUG_ON(!itemlist
))
1529 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
1531 uinfo
->value
.enumerated
.items
= cval
->max
;
1532 if ((int)uinfo
->value
.enumerated
.item
>= cval
->max
)
1533 uinfo
->value
.enumerated
.item
= cval
->max
- 1;
1534 strcpy(uinfo
->value
.enumerated
.name
, itemlist
[uinfo
->value
.enumerated
.item
]);
1538 /* get callback for selector unit */
1539 static int mixer_ctl_selector_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1541 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1544 err
= get_cur_ctl_value(cval
, 0, &val
);
1546 if (cval
->mixer
->ignore_ctl_error
) {
1547 ucontrol
->value
.enumerated
.item
[0] = 0;
1552 val
= get_relative_value(cval
, val
);
1553 ucontrol
->value
.enumerated
.item
[0] = val
;
1557 /* put callback for selector unit */
1558 static int mixer_ctl_selector_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1560 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1563 err
= get_cur_ctl_value(cval
, 0, &oval
);
1565 if (cval
->mixer
->ignore_ctl_error
)
1569 val
= ucontrol
->value
.enumerated
.item
[0];
1570 val
= get_abs_value(cval
, val
);
1572 set_cur_ctl_value(cval
, 0, val
);
1578 /* alsa control interface for selector unit */
1579 static struct snd_kcontrol_new mixer_selectunit_ctl
= {
1580 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1581 .name
= "", /* will be filled later */
1582 .info
= mixer_ctl_selector_info
,
1583 .get
= mixer_ctl_selector_get
,
1584 .put
= mixer_ctl_selector_put
,
1588 /* private free callback.
1589 * free both private_data and private_value
1591 static void usb_mixer_selector_elem_free(struct snd_kcontrol
*kctl
)
1595 if (kctl
->private_data
) {
1596 struct usb_mixer_elem_info
*cval
= kctl
->private_data
;
1597 num_ins
= cval
->max
;
1599 kctl
->private_data
= NULL
;
1601 if (kctl
->private_value
) {
1602 char **itemlist
= (char **)kctl
->private_value
;
1603 for (i
= 0; i
< num_ins
; i
++)
1606 kctl
->private_value
= 0;
1611 * parse a selector unit
1613 static int parse_audio_selector_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1615 unsigned int num_ins
= desc
[4];
1616 unsigned int i
, nameid
, len
;
1618 struct usb_mixer_elem_info
*cval
;
1619 struct snd_kcontrol
*kctl
;
1620 const struct usbmix_name_map
*map
;
1623 if (! num_ins
|| desc
[0] < 5 + num_ins
) {
1624 snd_printk(KERN_ERR
"invalid SELECTOR UNIT descriptor %d\n", unitid
);
1628 for (i
= 0; i
< num_ins
; i
++) {
1629 if ((err
= parse_audio_unit(state
, desc
[5 + i
])) < 0)
1633 if (num_ins
== 1) /* only one ? nonsense! */
1636 map
= find_map(state
, unitid
, 0);
1637 if (check_ignored_ctl(map
))
1640 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
1642 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1645 cval
->mixer
= state
->mixer
;
1647 cval
->val_type
= USB_MIXER_U8
;
1650 cval
->max
= num_ins
;
1652 cval
->initialized
= 1;
1654 namelist
= kmalloc(sizeof(char *) * num_ins
, GFP_KERNEL
);
1656 snd_printk(KERN_ERR
"cannot malloc\n");
1660 #define MAX_ITEM_NAME_LEN 64
1661 for (i
= 0; i
< num_ins
; i
++) {
1662 struct usb_audio_term iterm
;
1664 namelist
[i
] = kmalloc(MAX_ITEM_NAME_LEN
, GFP_KERNEL
);
1665 if (! namelist
[i
]) {
1666 snd_printk(KERN_ERR
"cannot malloc\n");
1673 len
= check_mapped_selector_name(state
, unitid
, i
, namelist
[i
],
1675 if (! len
&& check_input_term(state
, desc
[5 + i
], &iterm
) >= 0)
1676 len
= get_term_name(state
, &iterm
, namelist
[i
], MAX_ITEM_NAME_LEN
, 0);
1678 sprintf(namelist
[i
], "Input %d", i
);
1681 kctl
= snd_ctl_new1(&mixer_selectunit_ctl
, cval
);
1683 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1688 kctl
->private_value
= (unsigned long)namelist
;
1689 kctl
->private_free
= usb_mixer_selector_elem_free
;
1691 nameid
= desc
[desc
[0] - 1];
1692 len
= check_mapped_name(map
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1696 snd_usb_copy_string_desc(state
, nameid
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1698 len
= get_term_name(state
, &state
->oterm
,
1699 kctl
->id
.name
, sizeof(kctl
->id
.name
), 0);
1701 strlcpy(kctl
->id
.name
, "USB", sizeof(kctl
->id
.name
));
1703 if ((state
->oterm
.type
& 0xff00) == 0x0100)
1704 append_ctl_name(kctl
, " Capture Source");
1706 append_ctl_name(kctl
, " Playback Source");
1709 snd_printdd(KERN_INFO
"[%d] SU [%s] items = %d\n",
1710 cval
->id
, kctl
->id
.name
, num_ins
);
1711 if ((err
= add_control_to_empty(state
, kctl
)) < 0)
1719 * parse an audio unit recursively
1722 static int parse_audio_unit(struct mixer_build
*state
, int unitid
)
1726 if (test_and_set_bit(unitid
, state
->unitbitmap
))
1727 return 0; /* the unit already visited */
1729 p1
= find_audio_control_unit(state
, unitid
);
1731 snd_printk(KERN_ERR
"usbaudio: unit %d not found!\n", unitid
);
1736 case INPUT_TERMINAL
:
1739 return parse_audio_mixer_unit(state
, unitid
, p1
);
1741 return parse_audio_selector_unit(state
, unitid
, p1
);
1743 return parse_audio_feature_unit(state
, unitid
, p1
);
1744 case PROCESSING_UNIT
:
1745 return parse_audio_processing_unit(state
, unitid
, p1
);
1746 case EXTENSION_UNIT
:
1747 return parse_audio_extension_unit(state
, unitid
, p1
);
1749 snd_printk(KERN_ERR
"usbaudio: unit %u: unexpected type 0x%02x\n", unitid
, p1
[2]);
1754 static void snd_usb_mixer_free(struct usb_mixer_interface
*mixer
)
1756 kfree(mixer
->id_elems
);
1758 kfree(mixer
->urb
->transfer_buffer
);
1759 usb_free_urb(mixer
->urb
);
1761 usb_free_urb(mixer
->rc_urb
);
1762 kfree(mixer
->rc_setup_packet
);
1766 static int snd_usb_mixer_dev_free(struct snd_device
*device
)
1768 struct usb_mixer_interface
*mixer
= device
->device_data
;
1769 snd_usb_mixer_free(mixer
);
1774 * create mixer controls
1776 * walk through all OUTPUT_TERMINAL descriptors to search for mixers
1778 static int snd_usb_mixer_controls(struct usb_mixer_interface
*mixer
)
1780 unsigned char *desc
;
1781 struct mixer_build state
;
1783 const struct usbmix_ctl_map
*map
;
1784 struct usb_host_interface
*hostif
;
1786 hostif
= &usb_ifnum_to_if(mixer
->chip
->dev
, mixer
->ctrlif
)->altsetting
[0];
1787 memset(&state
, 0, sizeof(state
));
1788 state
.chip
= mixer
->chip
;
1789 state
.mixer
= mixer
;
1790 state
.buffer
= hostif
->extra
;
1791 state
.buflen
= hostif
->extralen
;
1793 /* check the mapping table */
1794 for (map
= usbmix_ctl_maps
; map
->id
; map
++) {
1795 if (map
->id
== state
.chip
->usb_id
) {
1796 state
.map
= map
->map
;
1797 state
.selector_map
= map
->selector_map
;
1798 mixer
->ignore_ctl_error
= map
->ignore_ctl_error
;
1804 while ((desc
= snd_usb_find_csint_desc(hostif
->extra
, hostif
->extralen
, desc
, OUTPUT_TERMINAL
)) != NULL
) {
1806 continue; /* invalid descriptor? */
1807 set_bit(desc
[3], state
.unitbitmap
); /* mark terminal ID as visited */
1808 state
.oterm
.id
= desc
[3];
1809 state
.oterm
.type
= combine_word(&desc
[4]);
1810 state
.oterm
.name
= desc
[8];
1811 err
= parse_audio_unit(&state
, desc
[7]);
1818 static void snd_usb_mixer_notify_id(struct usb_mixer_interface
*mixer
,
1821 struct usb_mixer_elem_info
*info
;
1823 for (info
= mixer
->id_elems
[unitid
]; info
; info
= info
->next_id_elem
)
1824 snd_ctl_notify(mixer
->chip
->card
, SNDRV_CTL_EVENT_MASK_VALUE
,
1828 static void snd_usb_mixer_memory_change(struct usb_mixer_interface
*mixer
,
1833 /* unit ids specific to Extigy/Audigy 2 NX: */
1835 case 0: /* remote control */
1836 mixer
->rc_urb
->dev
= mixer
->chip
->dev
;
1837 usb_submit_urb(mixer
->rc_urb
, GFP_ATOMIC
);
1839 case 4: /* digital in jack */
1840 case 7: /* line in jacks */
1841 case 19: /* speaker out jacks */
1842 case 20: /* headphones out jack */
1844 /* live24ext: 4 = line-in jack */
1845 case 3: /* hp-out jack (may actuate Mute) */
1846 if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
1847 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048))
1848 snd_usb_mixer_notify_id(mixer
, mixer
->rc_cfg
->mute_mixer_id
);
1851 snd_printd(KERN_DEBUG
"memory change in unknown unit %d\n", unitid
);
1856 static void snd_usb_mixer_status_complete(struct urb
*urb
)
1858 struct usb_mixer_interface
*mixer
= urb
->context
;
1860 if (urb
->status
== 0) {
1861 u8
*buf
= urb
->transfer_buffer
;
1864 for (i
= urb
->actual_length
; i
>= 2; buf
+= 2, i
-= 2) {
1865 snd_printd(KERN_DEBUG
"status interrupt: %02x %02x\n",
1867 /* ignore any notifications not from the control interface */
1868 if ((buf
[0] & 0x0f) != 0)
1870 if (!(buf
[0] & 0x40))
1871 snd_usb_mixer_notify_id(mixer
, buf
[1]);
1873 snd_usb_mixer_memory_change(mixer
, buf
[1]);
1876 if (urb
->status
!= -ENOENT
&& urb
->status
!= -ECONNRESET
) {
1877 urb
->dev
= mixer
->chip
->dev
;
1878 usb_submit_urb(urb
, GFP_ATOMIC
);
1882 /* create the handler for the optional status interrupt endpoint */
1883 static int snd_usb_mixer_status_create(struct usb_mixer_interface
*mixer
)
1885 struct usb_host_interface
*hostif
;
1886 struct usb_endpoint_descriptor
*ep
;
1887 void *transfer_buffer
;
1891 hostif
= &usb_ifnum_to_if(mixer
->chip
->dev
, mixer
->ctrlif
)->altsetting
[0];
1892 /* we need one interrupt input endpoint */
1893 if (get_iface_desc(hostif
)->bNumEndpoints
< 1)
1895 ep
= get_endpoint(hostif
, 0);
1896 if (!usb_endpoint_dir_in(ep
) || !usb_endpoint_xfer_int(ep
))
1899 epnum
= usb_endpoint_num(ep
);
1900 buffer_length
= le16_to_cpu(ep
->wMaxPacketSize
);
1901 transfer_buffer
= kmalloc(buffer_length
, GFP_KERNEL
);
1902 if (!transfer_buffer
)
1904 mixer
->urb
= usb_alloc_urb(0, GFP_KERNEL
);
1906 kfree(transfer_buffer
);
1909 usb_fill_int_urb(mixer
->urb
, mixer
->chip
->dev
,
1910 usb_rcvintpipe(mixer
->chip
->dev
, epnum
),
1911 transfer_buffer
, buffer_length
,
1912 snd_usb_mixer_status_complete
, mixer
, ep
->bInterval
);
1913 usb_submit_urb(mixer
->urb
, GFP_KERNEL
);
1917 static void snd_usb_soundblaster_remote_complete(struct urb
*urb
)
1919 struct usb_mixer_interface
*mixer
= urb
->context
;
1920 const struct rc_config
*rc
= mixer
->rc_cfg
;
1923 if (urb
->status
< 0 || urb
->actual_length
< rc
->min_packet_length
)
1926 code
= mixer
->rc_buffer
[rc
->offset
];
1927 if (rc
->length
== 2)
1928 code
|= mixer
->rc_buffer
[rc
->offset
+ 1] << 8;
1930 /* the Mute button actually changes the mixer control */
1931 if (code
== rc
->mute_code
)
1932 snd_usb_mixer_notify_id(mixer
, rc
->mute_mixer_id
);
1933 mixer
->rc_code
= code
;
1935 wake_up(&mixer
->rc_waitq
);
1938 static long snd_usb_sbrc_hwdep_read(struct snd_hwdep
*hw
, char __user
*buf
,
1939 long count
, loff_t
*offset
)
1941 struct usb_mixer_interface
*mixer
= hw
->private_data
;
1945 if (count
!= 1 && count
!= 4)
1947 err
= wait_event_interruptible(mixer
->rc_waitq
,
1948 (rc_code
= xchg(&mixer
->rc_code
, 0)) != 0);
1951 err
= put_user(rc_code
, buf
);
1953 err
= put_user(rc_code
, (u32 __user
*)buf
);
1955 return err
< 0 ? err
: count
;
1958 static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep
*hw
, struct file
*file
,
1961 struct usb_mixer_interface
*mixer
= hw
->private_data
;
1963 poll_wait(file
, &mixer
->rc_waitq
, wait
);
1964 return mixer
->rc_code
? POLLIN
| POLLRDNORM
: 0;
1967 static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface
*mixer
)
1969 struct snd_hwdep
*hwdep
;
1972 for (i
= 0; i
< ARRAY_SIZE(rc_configs
); ++i
)
1973 if (rc_configs
[i
].usb_id
== mixer
->chip
->usb_id
)
1975 if (i
>= ARRAY_SIZE(rc_configs
))
1977 mixer
->rc_cfg
= &rc_configs
[i
];
1979 len
= mixer
->rc_cfg
->packet_length
;
1981 init_waitqueue_head(&mixer
->rc_waitq
);
1982 err
= snd_hwdep_new(mixer
->chip
->card
, "SB remote control", 0, &hwdep
);
1985 snprintf(hwdep
->name
, sizeof(hwdep
->name
),
1986 "%s remote control", mixer
->chip
->card
->shortname
);
1987 hwdep
->iface
= SNDRV_HWDEP_IFACE_SB_RC
;
1988 hwdep
->private_data
= mixer
;
1989 hwdep
->ops
.read
= snd_usb_sbrc_hwdep_read
;
1990 hwdep
->ops
.poll
= snd_usb_sbrc_hwdep_poll
;
1991 hwdep
->exclusive
= 1;
1993 mixer
->rc_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1996 mixer
->rc_setup_packet
= kmalloc(sizeof(*mixer
->rc_setup_packet
), GFP_KERNEL
);
1997 if (!mixer
->rc_setup_packet
) {
1998 usb_free_urb(mixer
->rc_urb
);
1999 mixer
->rc_urb
= NULL
;
2002 mixer
->rc_setup_packet
->bRequestType
=
2003 USB_DIR_IN
| USB_TYPE_CLASS
| USB_RECIP_INTERFACE
;
2004 mixer
->rc_setup_packet
->bRequest
= GET_MEM
;
2005 mixer
->rc_setup_packet
->wValue
= cpu_to_le16(0);
2006 mixer
->rc_setup_packet
->wIndex
= cpu_to_le16(0);
2007 mixer
->rc_setup_packet
->wLength
= cpu_to_le16(len
);
2008 usb_fill_control_urb(mixer
->rc_urb
, mixer
->chip
->dev
,
2009 usb_rcvctrlpipe(mixer
->chip
->dev
, 0),
2010 (u8
*)mixer
->rc_setup_packet
, mixer
->rc_buffer
, len
,
2011 snd_usb_soundblaster_remote_complete
, mixer
);
2015 #define snd_audigy2nx_led_info snd_ctl_boolean_mono_info
2017 static int snd_audigy2nx_led_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
2019 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2020 int index
= kcontrol
->private_value
;
2022 ucontrol
->value
.integer
.value
[0] = mixer
->audigy2nx_leds
[index
];
2026 static int snd_audigy2nx_led_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
2028 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2029 int index
= kcontrol
->private_value
;
2030 int value
= ucontrol
->value
.integer
.value
[0];
2035 changed
= value
!= mixer
->audigy2nx_leds
[index
];
2036 err
= snd_usb_ctl_msg(mixer
->chip
->dev
,
2037 usb_sndctrlpipe(mixer
->chip
->dev
, 0), 0x24,
2038 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_OTHER
,
2039 value
, index
+ 2, NULL
, 0, 100);
2042 mixer
->audigy2nx_leds
[index
] = value
;
2046 static struct snd_kcontrol_new snd_audigy2nx_controls
[] = {
2048 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2049 .name
= "CMSS LED Switch",
2050 .info
= snd_audigy2nx_led_info
,
2051 .get
= snd_audigy2nx_led_get
,
2052 .put
= snd_audigy2nx_led_put
,
2056 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2057 .name
= "Power LED Switch",
2058 .info
= snd_audigy2nx_led_info
,
2059 .get
= snd_audigy2nx_led_get
,
2060 .put
= snd_audigy2nx_led_put
,
2064 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2065 .name
= "Dolby Digital LED Switch",
2066 .info
= snd_audigy2nx_led_info
,
2067 .get
= snd_audigy2nx_led_get
,
2068 .put
= snd_audigy2nx_led_put
,
2073 static int snd_audigy2nx_controls_create(struct usb_mixer_interface
*mixer
)
2077 for (i
= 0; i
< ARRAY_SIZE(snd_audigy2nx_controls
); ++i
) {
2078 if (i
> 1 && /* Live24ext has 2 LEDs only */
2079 (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
2080 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048)))
2082 err
= snd_ctl_add(mixer
->chip
->card
,
2083 snd_ctl_new1(&snd_audigy2nx_controls
[i
], mixer
));
2087 mixer
->audigy2nx_leds
[1] = 1; /* Power LED is on by default */
2091 static void snd_audigy2nx_proc_read(struct snd_info_entry
*entry
,
2092 struct snd_info_buffer
*buffer
)
2094 static const struct sb_jack
{
2097 } jacks_audigy2nx
[] = {
2103 }, jacks_live24ext
[] = {
2104 {4, "line in"}, /* &1=Line, &2=Mic*/
2105 {3, "hph out"}, /* headphones */
2106 {0, "RC "}, /* last command, 6 bytes see rc_config above */
2109 const struct sb_jack
*jacks
;
2110 struct usb_mixer_interface
*mixer
= entry
->private_data
;
2114 snd_iprintf(buffer
, "%s jacks\n\n", mixer
->chip
->card
->shortname
);
2115 if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3020))
2116 jacks
= jacks_audigy2nx
;
2117 else if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
2118 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048))
2119 jacks
= jacks_live24ext
;
2123 for (i
= 0; jacks
[i
].name
; ++i
) {
2124 snd_iprintf(buffer
, "%s: ", jacks
[i
].name
);
2125 err
= snd_usb_ctl_msg(mixer
->chip
->dev
,
2126 usb_rcvctrlpipe(mixer
->chip
->dev
, 0),
2127 GET_MEM
, USB_DIR_IN
| USB_TYPE_CLASS
|
2128 USB_RECIP_INTERFACE
, 0,
2129 jacks
[i
].unitid
<< 8, buf
, 3, 100);
2130 if (err
== 3 && (buf
[0] == 3 || buf
[0] == 6))
2131 snd_iprintf(buffer
, "%02x %02x\n", buf
[1], buf
[2]);
2133 snd_iprintf(buffer
, "?\n");
2137 static int snd_xonar_u1_switch_get(struct snd_kcontrol
*kcontrol
,
2138 struct snd_ctl_elem_value
*ucontrol
)
2140 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2142 ucontrol
->value
.integer
.value
[0] = !!(mixer
->xonar_u1_status
& 0x02);
2146 static int snd_xonar_u1_switch_put(struct snd_kcontrol
*kcontrol
,
2147 struct snd_ctl_elem_value
*ucontrol
)
2149 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2150 u8 old_status
, new_status
;
2153 old_status
= mixer
->xonar_u1_status
;
2154 if (ucontrol
->value
.integer
.value
[0])
2155 new_status
= old_status
| 0x02;
2157 new_status
= old_status
& ~0x02;
2158 changed
= new_status
!= old_status
;
2159 err
= snd_usb_ctl_msg(mixer
->chip
->dev
,
2160 usb_sndctrlpipe(mixer
->chip
->dev
, 0), 0x08,
2161 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_OTHER
,
2162 50, 0, &new_status
, 1, 100);
2165 mixer
->xonar_u1_status
= new_status
;
2169 static struct snd_kcontrol_new snd_xonar_u1_output_switch
= {
2170 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2171 .name
= "Digital Playback Switch",
2172 .info
= snd_ctl_boolean_mono_info
,
2173 .get
= snd_xonar_u1_switch_get
,
2174 .put
= snd_xonar_u1_switch_put
,
2177 static int snd_xonar_u1_controls_create(struct usb_mixer_interface
*mixer
)
2181 err
= snd_ctl_add(mixer
->chip
->card
,
2182 snd_ctl_new1(&snd_xonar_u1_output_switch
, mixer
));
2185 mixer
->xonar_u1_status
= 0x05;
2189 void snd_emuusb_set_samplerate(struct snd_usb_audio
*chip
,
2190 unsigned char samplerate_id
)
2192 struct usb_mixer_interface
*mixer
;
2193 struct usb_mixer_elem_info
*cval
;
2194 int unitid
= 12; /* SamleRate ExtensionUnit ID */
2196 list_for_each_entry(mixer
, &chip
->mixer_list
, list
) {
2197 cval
= mixer
->id_elems
[unitid
];
2199 set_cur_ctl_value(cval
, cval
->control
<< 8, samplerate_id
);
2200 snd_usb_mixer_notify_id(mixer
, unitid
);
2206 int snd_usb_create_mixer(struct snd_usb_audio
*chip
, int ctrlif
,
2209 static struct snd_device_ops dev_ops
= {
2210 .dev_free
= snd_usb_mixer_dev_free
2212 struct usb_mixer_interface
*mixer
;
2215 strcpy(chip
->card
->mixername
, "USB Mixer");
2217 mixer
= kzalloc(sizeof(*mixer
), GFP_KERNEL
);
2221 mixer
->ctrlif
= ctrlif
;
2222 mixer
->ignore_ctl_error
= ignore_error
;
2223 mixer
->id_elems
= kcalloc(256, sizeof(*mixer
->id_elems
), GFP_KERNEL
);
2224 if (!mixer
->id_elems
) {
2229 if ((err
= snd_usb_mixer_controls(mixer
)) < 0 ||
2230 (err
= snd_usb_mixer_status_create(mixer
)) < 0)
2233 if ((err
= snd_usb_soundblaster_remote_init(mixer
)) < 0)
2236 if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3020) ||
2237 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
2238 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048)) {
2239 struct snd_info_entry
*entry
;
2241 if ((err
= snd_audigy2nx_controls_create(mixer
)) < 0)
2243 if (!snd_card_proc_new(chip
->card
, "audigy2nx", &entry
))
2244 snd_info_set_text_ops(entry
, mixer
,
2245 snd_audigy2nx_proc_read
);
2248 if (mixer
->chip
->usb_id
== USB_ID(0x0b05, 0x1739) ||
2249 mixer
->chip
->usb_id
== USB_ID(0x0b05, 0x1743)) {
2250 err
= snd_xonar_u1_controls_create(mixer
);
2255 err
= snd_device_new(chip
->card
, SNDRV_DEV_LOWLEVEL
, mixer
, &dev_ops
);
2258 list_add(&mixer
->list
, &chip
->mixer_list
);
2262 snd_usb_mixer_free(mixer
);
2266 void snd_usb_mixer_disconnect(struct list_head
*p
)
2268 struct usb_mixer_interface
*mixer
;
2270 mixer
= list_entry(p
, struct usb_mixer_interface
, list
);
2271 usb_kill_urb(mixer
->urb
);
2272 usb_kill_urb(mixer
->rc_urb
);