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 <linux/usb/audio.h>
37 #include <sound/core.h>
38 #include <sound/control.h>
39 #include <sound/hwdep.h>
40 #include <sound/info.h>
41 #include <sound/tlv.h>
49 /* ignore error from controls - for debugging */
50 /* #define IGNORE_CTL_ERROR */
53 * Sound Blaster remote control configuration
55 * format of remote control data:
57 * Audigy 2 NX: 06 80 xx 00 00 00
58 * Live! 24-bit: 06 80 xx yy 22 83
60 static const struct rc_config
{
65 u8 min_packet_length
; /* minimum accepted length of the URB result */
69 { USB_ID(0x041e, 0x3000), 0, 1, 2, 1, 18, 0x0013 }, /* Extigy */
70 { USB_ID(0x041e, 0x3020), 2, 1, 6, 6, 18, 0x0013 }, /* Audigy 2 NX */
71 { USB_ID(0x041e, 0x3040), 2, 2, 6, 6, 2, 0x6e91 }, /* Live! 24-bit */
72 { USB_ID(0x041e, 0x3048), 2, 2, 6, 6, 2, 0x6e91 }, /* Toshiba SB0500 */
75 #define MAX_ID_ELEMS 256
77 struct usb_mixer_interface
{
78 struct snd_usb_audio
*chip
;
80 struct list_head list
;
81 unsigned int ignore_ctl_error
;
83 /* array[MAX_ID_ELEMS], indexed by unit id */
84 struct usb_mixer_elem_info
**id_elems
;
86 /* Sound Blaster remote control stuff */
87 const struct rc_config
*rc_cfg
;
89 wait_queue_head_t rc_waitq
;
91 struct usb_ctrlrequest
*rc_setup_packet
;
99 struct usb_audio_term
{
103 unsigned int chconfig
;
107 struct usbmix_name_map
;
110 struct snd_usb_audio
*chip
;
111 struct usb_mixer_interface
*mixer
;
112 unsigned char *buffer
;
114 DECLARE_BITMAP(unitbitmap
, MAX_ID_ELEMS
);
115 struct usb_audio_term oterm
;
116 const struct usbmix_name_map
*map
;
117 const struct usbmix_selector_map
*selector_map
;
120 #define MAX_CHANNELS 10 /* max logical channels */
122 struct usb_mixer_elem_info
{
123 struct usb_mixer_interface
*mixer
;
124 struct usb_mixer_elem_info
*next_id_elem
; /* list of controls with same id */
125 struct snd_ctl_elem_id
*elem_id
;
127 unsigned int control
; /* CS or ICN (high byte) */
128 unsigned int cmask
; /* channel mask bitmap: 0 = master */
134 int cache_val
[MAX_CHANNELS
];
140 USB_FEATURE_NONE
= 0,
141 USB_FEATURE_MUTE
= 1,
149 USB_FEATURE_BASSBOOST
,
155 USB_MIXER_INV_BOOLEAN
,
164 USB_PROC_UPDOWN_SWITCH
= 1,
165 USB_PROC_UPDOWN_MODE_SEL
= 2,
167 USB_PROC_PROLOGIC
= 2,
168 USB_PROC_PROLOGIC_SWITCH
= 1,
169 USB_PROC_PROLOGIC_MODE_SEL
= 2,
172 USB_PROC_3DENH_SWITCH
= 1,
173 USB_PROC_3DENH_SPACE
= 2,
176 USB_PROC_REVERB_SWITCH
= 1,
177 USB_PROC_REVERB_LEVEL
= 2,
178 USB_PROC_REVERB_TIME
= 3,
179 USB_PROC_REVERB_DELAY
= 4,
182 USB_PROC_CHORUS_SWITCH
= 1,
183 USB_PROC_CHORUS_LEVEL
= 2,
184 USB_PROC_CHORUS_RATE
= 3,
185 USB_PROC_CHORUS_DEPTH
= 4,
188 USB_PROC_DCR_SWITCH
= 1,
189 USB_PROC_DCR_RATIO
= 2,
190 USB_PROC_DCR_MAX_AMP
= 3,
191 USB_PROC_DCR_THRESHOLD
= 4,
192 USB_PROC_DCR_ATTACK
= 5,
193 USB_PROC_DCR_RELEASE
= 6,
196 /*E-mu 0202(0404) eXtension Unit(XU) control*/
198 USB_XU_CLOCK_RATE
= 0xe301,
199 USB_XU_CLOCK_SOURCE
= 0xe302,
200 USB_XU_DIGITAL_IO_STATUS
= 0xe303,
201 USB_XU_DEVICE_OPTIONS
= 0xe304,
202 USB_XU_DIRECT_MONITORING
= 0xe305,
203 USB_XU_METERING
= 0xe306
206 USB_XU_CLOCK_SOURCE_SELECTOR
= 0x02, /* clock source*/
207 USB_XU_CLOCK_RATE_SELECTOR
= 0x03, /* clock rate */
208 USB_XU_DIGITAL_FORMAT_SELECTOR
= 0x01, /* the spdif format */
209 USB_XU_SOFT_LIMIT_SELECTOR
= 0x03 /* soft limiter */
213 * manual mapping of mixer names
214 * if the mixer topology is too complicated and the parsed names are
215 * ambiguous, add the entries in usbmixer_maps.c.
217 #include "usbmixer_maps.c"
219 static const struct usbmix_name_map
*
220 find_map(struct mixer_build
*state
, int unitid
, int control
)
222 const struct usbmix_name_map
*p
= state
->map
;
227 for (p
= state
->map
; p
->id
; p
++) {
228 if (p
->id
== unitid
&&
229 (!control
|| !p
->control
|| control
== p
->control
))
235 /* get the mapped name if the unit matches */
237 check_mapped_name(const struct usbmix_name_map
*p
, char *buf
, int buflen
)
243 return strlcpy(buf
, p
->name
, buflen
);
246 /* check whether the control should be ignored */
248 check_ignored_ctl(const struct usbmix_name_map
*p
)
250 if (!p
|| p
->name
|| p
->dB
)
256 static inline void check_mapped_dB(const struct usbmix_name_map
*p
,
257 struct usb_mixer_elem_info
*cval
)
260 cval
->dBmin
= p
->dB
->min
;
261 cval
->dBmax
= p
->dB
->max
;
265 /* get the mapped selector source name */
266 static int check_mapped_selector_name(struct mixer_build
*state
, int unitid
,
267 int index
, char *buf
, int buflen
)
269 const struct usbmix_selector_map
*p
;
271 if (! state
->selector_map
)
273 for (p
= state
->selector_map
; p
->id
; p
++) {
274 if (p
->id
== unitid
&& index
< p
->count
)
275 return strlcpy(buf
, p
->names
[index
], buflen
);
281 * find an audio control unit with the given unit id
283 static void *find_audio_control_unit(struct mixer_build
*state
, unsigned char unit
)
288 while ((p
= snd_usb_find_desc(state
->buffer
, state
->buflen
, p
,
289 USB_DT_CS_INTERFACE
)) != NULL
) {
290 if (p
[0] >= 4 && p
[2] >= UAC_INPUT_TERMINAL
&& p
[2] <= UAC_EXTENSION_UNIT_V1
&& p
[3] == unit
)
298 * copy a string with the given id
300 static int snd_usb_copy_string_desc(struct mixer_build
*state
, int index
, char *buf
, int maxlen
)
302 int len
= usb_string(state
->chip
->dev
, index
, buf
, maxlen
- 1);
308 * convert from the byte/word on usb descriptor to the zero-based integer
310 static int convert_signed_value(struct usb_mixer_elem_info
*cval
, int val
)
312 switch (cval
->val_type
) {
313 case USB_MIXER_BOOLEAN
:
315 case USB_MIXER_INV_BOOLEAN
:
338 * convert from the zero-based int to the byte/word for usb descriptor
340 static int convert_bytes_value(struct usb_mixer_elem_info
*cval
, int val
)
342 switch (cval
->val_type
) {
343 case USB_MIXER_BOOLEAN
:
345 case USB_MIXER_INV_BOOLEAN
:
354 return 0; /* not reached */
357 static int get_relative_value(struct usb_mixer_elem_info
*cval
, int val
)
363 else if (val
>= cval
->max
)
364 return (cval
->max
- cval
->min
+ cval
->res
- 1) / cval
->res
;
366 return (val
- cval
->min
) / cval
->res
;
369 static int get_abs_value(struct usb_mixer_elem_info
*cval
, int val
)
384 * retrieve a mixer value
387 static int get_ctl_value(struct usb_mixer_elem_info
*cval
, int request
, int validx
, int *value_ret
)
389 unsigned char buf
[2];
390 int val_len
= cval
->val_type
>= USB_MIXER_S16
? 2 : 1;
393 while (timeout
-- > 0) {
394 if (snd_usb_ctl_msg(cval
->mixer
->chip
->dev
,
395 usb_rcvctrlpipe(cval
->mixer
->chip
->dev
, 0),
397 USB_RECIP_INTERFACE
| USB_TYPE_CLASS
| USB_DIR_IN
,
398 validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8),
399 buf
, val_len
, 100) >= val_len
) {
400 *value_ret
= convert_signed_value(cval
, snd_usb_combine_bytes(buf
, val_len
));
404 snd_printdd(KERN_ERR
"cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
405 request
, validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8), cval
->val_type
);
409 static int get_cur_ctl_value(struct usb_mixer_elem_info
*cval
, int validx
, int *value
)
411 return get_ctl_value(cval
, UAC_GET_CUR
, validx
, value
);
414 /* channel = 0: master, 1 = first channel */
415 static inline int get_cur_mix_raw(struct usb_mixer_elem_info
*cval
,
416 int channel
, int *value
)
418 return get_ctl_value(cval
, UAC_GET_CUR
, (cval
->control
<< 8) | channel
, value
);
421 static int get_cur_mix_value(struct usb_mixer_elem_info
*cval
,
422 int channel
, int index
, int *value
)
426 if (cval
->cached
& (1 << channel
)) {
427 *value
= cval
->cache_val
[index
];
430 err
= get_cur_mix_raw(cval
, channel
, value
);
432 if (!cval
->mixer
->ignore_ctl_error
)
433 snd_printd(KERN_ERR
"cannot get current value for "
434 "control %d ch %d: err = %d\n",
435 cval
->control
, channel
, err
);
438 cval
->cached
|= 1 << channel
;
439 cval
->cache_val
[index
] = *value
;
448 static int set_ctl_value(struct usb_mixer_elem_info
*cval
, int request
, int validx
, int value_set
)
450 unsigned char buf
[2];
451 int val_len
= cval
->val_type
>= USB_MIXER_S16
? 2 : 1;
454 value_set
= convert_bytes_value(cval
, value_set
);
455 buf
[0] = value_set
& 0xff;
456 buf
[1] = (value_set
>> 8) & 0xff;
457 while (timeout
-- > 0)
458 if (snd_usb_ctl_msg(cval
->mixer
->chip
->dev
,
459 usb_sndctrlpipe(cval
->mixer
->chip
->dev
, 0),
461 USB_RECIP_INTERFACE
| USB_TYPE_CLASS
| USB_DIR_OUT
,
462 validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8),
463 buf
, val_len
, 100) >= 0)
465 snd_printdd(KERN_ERR
"cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n",
466 request
, validx
, cval
->mixer
->ctrlif
| (cval
->id
<< 8), cval
->val_type
, buf
[0], buf
[1]);
470 static int set_cur_ctl_value(struct usb_mixer_elem_info
*cval
, int validx
, int value
)
472 return set_ctl_value(cval
, UAC_SET_CUR
, validx
, value
);
475 static int set_cur_mix_value(struct usb_mixer_elem_info
*cval
, int channel
,
476 int index
, int value
)
479 err
= set_ctl_value(cval
, UAC_SET_CUR
, (cval
->control
<< 8) | channel
,
483 cval
->cached
|= 1 << channel
;
484 cval
->cache_val
[index
] = value
;
489 * TLV callback for mixer volume controls
491 static int mixer_vol_tlv(struct snd_kcontrol
*kcontrol
, int op_flag
,
492 unsigned int size
, unsigned int __user
*_tlv
)
494 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
495 DECLARE_TLV_DB_MINMAX(scale
, 0, 0);
497 if (size
< sizeof(scale
))
499 scale
[2] = cval
->dBmin
;
500 scale
[3] = cval
->dBmax
;
501 if (copy_to_user(_tlv
, scale
, sizeof(scale
)))
507 * parser routines begin here...
510 static int parse_audio_unit(struct mixer_build
*state
, int unitid
);
514 * check if the input/output channel routing is enabled on the given bitmap.
515 * used for mixer unit parser
517 static int check_matrix_bitmap(unsigned char *bmap
, int ich
, int och
, int num_outs
)
519 int idx
= ich
* num_outs
+ och
;
520 return bmap
[idx
>> 3] & (0x80 >> (idx
& 7));
525 * add an alsa control element
526 * search and increment the index until an empty slot is found.
528 * if failed, give up and free the control instance.
531 static int add_control_to_empty(struct mixer_build
*state
, struct snd_kcontrol
*kctl
)
533 struct usb_mixer_elem_info
*cval
= kctl
->private_data
;
536 while (snd_ctl_find_id(state
->chip
->card
, &kctl
->id
))
538 if ((err
= snd_ctl_add(state
->chip
->card
, kctl
)) < 0) {
539 snd_printd(KERN_ERR
"cannot add control (err = %d)\n", err
);
542 cval
->elem_id
= &kctl
->id
;
543 cval
->next_id_elem
= state
->mixer
->id_elems
[cval
->id
];
544 state
->mixer
->id_elems
[cval
->id
] = cval
;
550 * get a terminal name string
553 static struct iterm_name_combo
{
557 { 0x0300, "Output" },
558 { 0x0301, "Speaker" },
559 { 0x0302, "Headphone" },
560 { 0x0303, "HMD Audio" },
561 { 0x0304, "Desktop Speaker" },
562 { 0x0305, "Room Speaker" },
563 { 0x0306, "Com Speaker" },
565 { 0x0600, "External In" },
566 { 0x0601, "Analog In" },
567 { 0x0602, "Digital In" },
569 { 0x0604, "Legacy In" },
570 { 0x0605, "IEC958 In" },
571 { 0x0606, "1394 DA Stream" },
572 { 0x0607, "1394 DV Stream" },
573 { 0x0700, "Embedded" },
574 { 0x0701, "Noise Source" },
575 { 0x0702, "Equalization Noise" },
579 { 0x0706, "MiniDisk" },
580 { 0x0707, "Analog Tape" },
581 { 0x0708, "Phonograph" },
582 { 0x0709, "VCR Audio" },
583 { 0x070a, "Video Disk Audio" },
584 { 0x070b, "DVD Audio" },
585 { 0x070c, "TV Tuner Audio" },
586 { 0x070d, "Satellite Rec Audio" },
587 { 0x070e, "Cable Tuner Audio" },
588 { 0x070f, "DSS Audio" },
589 { 0x0710, "Radio Receiver" },
590 { 0x0711, "Radio Transmitter" },
591 { 0x0712, "Multi-Track Recorder" },
592 { 0x0713, "Synthesizer" },
596 static int get_term_name(struct mixer_build
*state
, struct usb_audio_term
*iterm
,
597 unsigned char *name
, int maxlen
, int term_only
)
599 struct iterm_name_combo
*names
;
602 return snd_usb_copy_string_desc(state
, iterm
->name
, name
, maxlen
);
604 /* virtual type - not a real terminal */
605 if (iterm
->type
>> 16) {
608 switch (iterm
->type
>> 16) {
609 case UAC_SELECTOR_UNIT
:
610 strcpy(name
, "Selector"); return 8;
611 case UAC_PROCESSING_UNIT_V1
:
612 strcpy(name
, "Process Unit"); return 12;
613 case UAC_EXTENSION_UNIT_V1
:
614 strcpy(name
, "Ext Unit"); return 8;
616 strcpy(name
, "Mixer"); return 5;
618 return sprintf(name
, "Unit %d", iterm
->id
);
622 switch (iterm
->type
& 0xff00) {
624 strcpy(name
, "PCM"); return 3;
626 strcpy(name
, "Mic"); return 3;
628 strcpy(name
, "Headset"); return 7;
630 strcpy(name
, "Phone"); return 5;
633 for (names
= iterm_names
; names
->type
; names
++)
634 if (names
->type
== iterm
->type
) {
635 strcpy(name
, names
->name
);
636 return strlen(names
->name
);
643 * parse the source unit recursively until it reaches to a terminal
644 * or a branched unit.
646 static int check_input_term(struct mixer_build
*state
, int id
, struct usb_audio_term
*term
)
650 memset(term
, 0, sizeof(*term
));
651 while ((p1
= find_audio_control_unit(state
, id
)) != NULL
) {
654 case UAC_INPUT_TERMINAL
:
655 term
->type
= combine_word(p1
+ 4);
656 term
->channels
= p1
[7];
657 term
->chconfig
= combine_word(p1
+ 8);
660 case UAC_FEATURE_UNIT
:
662 break; /* continue to parse */
664 term
->type
= p1
[2] << 16; /* virtual type */
665 term
->channels
= p1
[5 + p1
[4]];
666 term
->chconfig
= combine_word(p1
+ 6 + p1
[4]);
667 term
->name
= p1
[p1
[0] - 1];
669 case UAC_SELECTOR_UNIT
:
670 /* call recursively to retrieve the channel info */
671 if (check_input_term(state
, p1
[5], term
) < 0)
673 term
->type
= p1
[2] << 16; /* virtual type */
675 term
->name
= p1
[9 + p1
[0] - 1];
677 case UAC_PROCESSING_UNIT_V1
:
678 case UAC_EXTENSION_UNIT_V1
:
681 break; /* continue to parse */
683 term
->type
= p1
[2] << 16; /* virtual type */
684 term
->channels
= p1
[7 + p1
[6]];
685 term
->chconfig
= combine_word(p1
+ 8 + p1
[6]);
686 term
->name
= p1
[12 + p1
[6] + p1
[11 + p1
[6]]];
700 /* feature unit control information */
701 struct usb_feature_control_info
{
703 unsigned int type
; /* control type (mute, volume, etc.) */
706 static struct usb_feature_control_info audio_feature_info
[] = {
707 { "Mute", USB_MIXER_INV_BOOLEAN
},
708 { "Volume", USB_MIXER_S16
},
709 { "Tone Control - Bass", USB_MIXER_S8
},
710 { "Tone Control - Mid", USB_MIXER_S8
},
711 { "Tone Control - Treble", USB_MIXER_S8
},
712 { "Graphic Equalizer", USB_MIXER_S8
}, /* FIXME: not implemeted yet */
713 { "Auto Gain Control", USB_MIXER_BOOLEAN
},
714 { "Delay Control", USB_MIXER_U16
},
715 { "Bass Boost", USB_MIXER_BOOLEAN
},
716 { "Loudness", USB_MIXER_BOOLEAN
},
720 /* private_free callback */
721 static void usb_mixer_elem_free(struct snd_kcontrol
*kctl
)
723 kfree(kctl
->private_data
);
724 kctl
->private_data
= NULL
;
729 * interface to ALSA control for feature/mixer units
733 * retrieve the minimum and maximum values for the specified control
735 static int get_min_max(struct usb_mixer_elem_info
*cval
, int default_min
)
738 cval
->min
= default_min
;
739 cval
->max
= cval
->min
+ 1;
741 cval
->dBmin
= cval
->dBmax
= 0;
743 if (cval
->val_type
== USB_MIXER_BOOLEAN
||
744 cval
->val_type
== USB_MIXER_INV_BOOLEAN
) {
745 cval
->initialized
= 1;
750 for (i
= 0; i
< MAX_CHANNELS
; i
++)
751 if (cval
->cmask
& (1 << i
)) {
756 if (get_ctl_value(cval
, UAC_GET_MAX
, (cval
->control
<< 8) | minchn
, &cval
->max
) < 0 ||
757 get_ctl_value(cval
, UAC_GET_MIN
, (cval
->control
<< 8) | minchn
, &cval
->min
) < 0) {
758 snd_printd(KERN_ERR
"%d:%d: cannot get min/max values for control %d (id %d)\n",
759 cval
->id
, cval
->mixer
->ctrlif
, cval
->control
, cval
->id
);
762 if (get_ctl_value(cval
, UAC_GET_RES
, (cval
->control
<< 8) | minchn
, &cval
->res
) < 0) {
765 int last_valid_res
= cval
->res
;
767 while (cval
->res
> 1) {
768 if (set_ctl_value(cval
, UAC_SET_RES
, (cval
->control
<< 8) | minchn
, cval
->res
/ 2) < 0)
772 if (get_ctl_value(cval
, UAC_GET_RES
, (cval
->control
<< 8) | minchn
, &cval
->res
) < 0)
773 cval
->res
= last_valid_res
;
778 /* Additional checks for the proper resolution
780 * Some devices report smaller resolutions than actually
781 * reacting. They don't return errors but simply clip
782 * to the lower aligned value.
784 if (cval
->min
+ cval
->res
< cval
->max
) {
785 int last_valid_res
= cval
->res
;
786 int saved
, test
, check
;
787 get_cur_mix_raw(cval
, minchn
, &saved
);
790 if (test
< cval
->max
)
794 if (test
< cval
->min
|| test
> cval
->max
||
795 set_cur_mix_value(cval
, minchn
, 0, test
) ||
796 get_cur_mix_raw(cval
, minchn
, &check
)) {
797 cval
->res
= last_valid_res
;
804 set_cur_mix_value(cval
, minchn
, 0, saved
);
807 cval
->initialized
= 1;
810 /* USB descriptions contain the dB scale in 1/256 dB unit
811 * while ALSA TLV contains in 1/100 dB unit
813 cval
->dBmin
= (convert_signed_value(cval
, cval
->min
) * 100) / 256;
814 cval
->dBmax
= (convert_signed_value(cval
, cval
->max
) * 100) / 256;
815 if (cval
->dBmin
> cval
->dBmax
) {
816 /* something is wrong; assume it's either from/to 0dB */
819 else if (cval
->dBmin
> 0)
821 if (cval
->dBmin
> cval
->dBmax
) {
822 /* totally crap, return an error */
831 /* get a feature/mixer unit info */
832 static int mixer_ctl_feature_info(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_info
*uinfo
)
834 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
836 if (cval
->val_type
== USB_MIXER_BOOLEAN
||
837 cval
->val_type
== USB_MIXER_INV_BOOLEAN
)
838 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_BOOLEAN
;
840 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
841 uinfo
->count
= cval
->channels
;
842 if (cval
->val_type
== USB_MIXER_BOOLEAN
||
843 cval
->val_type
== USB_MIXER_INV_BOOLEAN
) {
844 uinfo
->value
.integer
.min
= 0;
845 uinfo
->value
.integer
.max
= 1;
847 if (! cval
->initialized
)
848 get_min_max(cval
, 0);
849 uinfo
->value
.integer
.min
= 0;
850 uinfo
->value
.integer
.max
=
851 (cval
->max
- cval
->min
+ cval
->res
- 1) / cval
->res
;
856 /* get the current value from feature/mixer unit */
857 static int mixer_ctl_feature_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
859 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
860 int c
, cnt
, val
, err
;
862 ucontrol
->value
.integer
.value
[0] = cval
->min
;
865 for (c
= 0; c
< MAX_CHANNELS
; c
++) {
866 if (!(cval
->cmask
& (1 << c
)))
868 err
= get_cur_mix_value(cval
, c
+ 1, cnt
, &val
);
870 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
871 val
= get_relative_value(cval
, val
);
872 ucontrol
->value
.integer
.value
[cnt
] = val
;
878 err
= get_cur_mix_value(cval
, 0, 0, &val
);
880 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
881 val
= get_relative_value(cval
, val
);
882 ucontrol
->value
.integer
.value
[0] = val
;
887 /* put the current value to feature/mixer unit */
888 static int mixer_ctl_feature_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
890 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
891 int c
, cnt
, val
, oval
, err
;
896 for (c
= 0; c
< MAX_CHANNELS
; c
++) {
897 if (!(cval
->cmask
& (1 << c
)))
899 err
= get_cur_mix_value(cval
, c
+ 1, cnt
, &oval
);
901 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
902 val
= ucontrol
->value
.integer
.value
[cnt
];
903 val
= get_abs_value(cval
, val
);
905 set_cur_mix_value(cval
, c
+ 1, cnt
, val
);
912 err
= get_cur_mix_value(cval
, 0, 0, &oval
);
914 return cval
->mixer
->ignore_ctl_error
? 0 : err
;
915 val
= ucontrol
->value
.integer
.value
[0];
916 val
= get_abs_value(cval
, val
);
918 set_cur_mix_value(cval
, 0, 0, val
);
925 static struct snd_kcontrol_new usb_feature_unit_ctl
= {
926 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
927 .name
= "", /* will be filled later manually */
928 .info
= mixer_ctl_feature_info
,
929 .get
= mixer_ctl_feature_get
,
930 .put
= mixer_ctl_feature_put
,
935 * build a feature control
938 static size_t append_ctl_name(struct snd_kcontrol
*kctl
, const char *str
)
940 return strlcat(kctl
->id
.name
, str
, sizeof(kctl
->id
.name
));
943 static void build_feature_ctl(struct mixer_build
*state
, unsigned char *desc
,
944 unsigned int ctl_mask
, int control
,
945 struct usb_audio_term
*iterm
, int unitid
)
947 unsigned int len
= 0;
949 int nameid
= desc
[desc
[0] - 1];
950 struct snd_kcontrol
*kctl
;
951 struct usb_mixer_elem_info
*cval
;
952 const struct usbmix_name_map
*map
;
954 control
++; /* change from zero-based to 1-based value */
956 if (control
== USB_FEATURE_GEQ
) {
957 /* FIXME: not supported yet */
961 map
= find_map(state
, unitid
, control
);
962 if (check_ignored_ctl(map
))
965 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
967 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
970 cval
->mixer
= state
->mixer
;
972 cval
->control
= control
;
973 cval
->cmask
= ctl_mask
;
974 cval
->val_type
= audio_feature_info
[control
-1].type
;
976 cval
->channels
= 1; /* master channel */
979 for (i
= 0; i
< 16; i
++)
980 if (ctl_mask
& (1 << i
))
985 /* get min/max values */
986 get_min_max(cval
, 0);
988 kctl
= snd_ctl_new1(&usb_feature_unit_ctl
, cval
);
990 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
994 kctl
->private_free
= usb_mixer_elem_free
;
996 len
= check_mapped_name(map
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
997 mapped_name
= len
!= 0;
999 len
= snd_usb_copy_string_desc(state
, nameid
,
1000 kctl
->id
.name
, sizeof(kctl
->id
.name
));
1003 case USB_FEATURE_MUTE
:
1004 case USB_FEATURE_VOLUME
:
1005 /* determine the control name. the rule is:
1006 * - if a name id is given in descriptor, use it.
1007 * - if the connected input can be determined, then use the name
1009 * - if the connected output can be determined, use it.
1010 * - otherwise, anonymous name.
1013 len
= get_term_name(state
, iterm
, kctl
->id
.name
, sizeof(kctl
->id
.name
), 1);
1015 len
= get_term_name(state
, &state
->oterm
, kctl
->id
.name
, sizeof(kctl
->id
.name
), 1);
1017 len
= snprintf(kctl
->id
.name
, sizeof(kctl
->id
.name
),
1018 "Feature %d", unitid
);
1020 /* determine the stream direction:
1021 * if the connected output is USB stream, then it's likely a
1022 * capture stream. otherwise it should be playback (hopefully :)
1024 if (! mapped_name
&& ! (state
->oterm
.type
>> 16)) {
1025 if ((state
->oterm
.type
& 0xff00) == 0x0100) {
1026 len
= append_ctl_name(kctl
, " Capture");
1028 len
= append_ctl_name(kctl
, " Playback");
1031 append_ctl_name(kctl
, control
== USB_FEATURE_MUTE
?
1032 " Switch" : " Volume");
1033 if (control
== USB_FEATURE_VOLUME
) {
1034 kctl
->tlv
.c
= mixer_vol_tlv
;
1035 kctl
->vd
[0].access
|=
1036 SNDRV_CTL_ELEM_ACCESS_TLV_READ
|
1037 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK
;
1038 check_mapped_dB(map
, cval
);
1044 strlcpy(kctl
->id
.name
, audio_feature_info
[control
-1].name
,
1045 sizeof(kctl
->id
.name
));
1049 /* volume control quirks */
1050 switch (state
->chip
->usb_id
) {
1051 case USB_ID(0x0471, 0x0101):
1052 case USB_ID(0x0471, 0x0104):
1053 case USB_ID(0x0471, 0x0105):
1054 case USB_ID(0x0672, 0x1041):
1055 /* quirk for UDA1321/N101.
1056 * note that detection between firmware 2.1.1.7 (N101)
1057 * and later 2.1.1.21 is not very clear from datasheets.
1058 * I hope that the min value is -15360 for newer firmware --jk
1060 if (!strcmp(kctl
->id
.name
, "PCM Playback Volume") &&
1061 cval
->min
== -15616) {
1062 snd_printk(KERN_INFO
1063 "set volume quirk for UDA1321/N101 chip\n");
1068 case USB_ID(0x046d, 0x09a4):
1069 if (!strcmp(kctl
->id
.name
, "Mic Capture Volume")) {
1070 snd_printk(KERN_INFO
1071 "set volume quirk for QuickCam E3500\n");
1080 snd_printdd(KERN_INFO
"[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
1081 cval
->id
, kctl
->id
.name
, cval
->channels
, cval
->min
, cval
->max
, cval
->res
);
1082 add_control_to_empty(state
, kctl
);
1088 * parse a feature unit
1090 * most of controlls are defined here.
1092 static int parse_audio_feature_unit(struct mixer_build
*state
, int unitid
, void *_ftr
)
1095 struct usb_audio_term iterm
;
1096 unsigned int master_bits
, first_ch_bits
;
1098 struct uac_feature_unit_descriptor
*ftr
= _ftr
;
1100 if (ftr
->bLength
< 7 || ! (csize
= ftr
->bControlSize
) || ftr
->bLength
< 7 + csize
) {
1101 snd_printk(KERN_ERR
"usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid
);
1105 /* parse the source unit */
1106 if ((err
= parse_audio_unit(state
, ftr
->bSourceID
)) < 0)
1109 /* determine the input source type and name */
1110 if (check_input_term(state
, ftr
->bSourceID
, &iterm
) < 0)
1113 channels
= (ftr
->bLength
- 7) / csize
- 1;
1115 master_bits
= snd_usb_combine_bytes(ftr
->controls
, csize
);
1116 /* master configuration quirks */
1117 switch (state
->chip
->usb_id
) {
1118 case USB_ID(0x08bb, 0x2702):
1119 snd_printk(KERN_INFO
1120 "usbmixer: master volume quirk for PCM2702 chip\n");
1121 /* disable non-functional volume control */
1122 master_bits
&= ~(1 << (USB_FEATURE_VOLUME
- 1));
1126 first_ch_bits
= snd_usb_combine_bytes(ftr
->controls
+ csize
, csize
);
1129 /* check all control types */
1130 for (i
= 0; i
< 10; i
++) {
1131 unsigned int ch_bits
= 0;
1132 for (j
= 0; j
< channels
; j
++) {
1133 unsigned int mask
= snd_usb_combine_bytes(ftr
->controls
+ csize
* (j
+1), csize
);
1134 if (mask
& (1 << i
))
1135 ch_bits
|= (1 << j
);
1137 if (ch_bits
& 1) /* the first channel must be set (for ease of programming) */
1138 build_feature_ctl(state
, _ftr
, ch_bits
, i
, &iterm
, unitid
);
1139 if (master_bits
& (1 << i
))
1140 build_feature_ctl(state
, _ftr
, 0, i
, &iterm
, unitid
);
1152 * build a mixer unit control
1154 * the callbacks are identical with feature unit.
1155 * input channel number (zero based) is given in control field instead.
1158 static void build_mixer_unit_ctl(struct mixer_build
*state
, unsigned char *desc
,
1159 int in_pin
, int in_ch
, int unitid
,
1160 struct usb_audio_term
*iterm
)
1162 struct usb_mixer_elem_info
*cval
;
1163 unsigned int input_pins
= desc
[4];
1164 unsigned int num_outs
= desc
[5 + input_pins
];
1165 unsigned int i
, len
;
1166 struct snd_kcontrol
*kctl
;
1167 const struct usbmix_name_map
*map
;
1169 map
= find_map(state
, unitid
, 0);
1170 if (check_ignored_ctl(map
))
1173 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
1177 cval
->mixer
= state
->mixer
;
1179 cval
->control
= in_ch
+ 1; /* based on 1 */
1180 cval
->val_type
= USB_MIXER_S16
;
1181 for (i
= 0; i
< num_outs
; i
++) {
1182 if (check_matrix_bitmap(desc
+ 9 + input_pins
, in_ch
, i
, num_outs
)) {
1183 cval
->cmask
|= (1 << i
);
1188 /* get min/max values */
1189 get_min_max(cval
, 0);
1191 kctl
= snd_ctl_new1(&usb_feature_unit_ctl
, cval
);
1193 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1197 kctl
->private_free
= usb_mixer_elem_free
;
1199 len
= check_mapped_name(map
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1201 len
= get_term_name(state
, iterm
, kctl
->id
.name
, sizeof(kctl
->id
.name
), 0);
1203 len
= sprintf(kctl
->id
.name
, "Mixer Source %d", in_ch
+ 1);
1204 append_ctl_name(kctl
, " Volume");
1206 snd_printdd(KERN_INFO
"[%d] MU [%s] ch = %d, val = %d/%d\n",
1207 cval
->id
, kctl
->id
.name
, cval
->channels
, cval
->min
, cval
->max
);
1208 add_control_to_empty(state
, kctl
);
1213 * parse a mixer unit
1215 static int parse_audio_mixer_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1217 struct usb_audio_term iterm
;
1218 int input_pins
, num_ins
, num_outs
;
1221 if (desc
[0] < 11 || ! (input_pins
= desc
[4]) || ! (num_outs
= desc
[5 + input_pins
])) {
1222 snd_printk(KERN_ERR
"invalid MIXER UNIT descriptor %d\n", unitid
);
1225 /* no bmControls field (e.g. Maya44) -> ignore */
1226 if (desc
[0] <= 10 + input_pins
) {
1227 snd_printdd(KERN_INFO
"MU %d has no bmControls field\n", unitid
);
1233 for (pin
= 0; pin
< input_pins
; pin
++) {
1234 err
= parse_audio_unit(state
, desc
[5 + pin
]);
1237 err
= check_input_term(state
, desc
[5 + pin
], &iterm
);
1240 num_ins
+= iterm
.channels
;
1241 for (; ich
< num_ins
; ++ich
) {
1242 int och
, ich_has_controls
= 0;
1244 for (och
= 0; och
< num_outs
; ++och
) {
1245 if (check_matrix_bitmap(desc
+ 9 + input_pins
,
1246 ich
, och
, num_outs
)) {
1247 ich_has_controls
= 1;
1251 if (ich_has_controls
)
1252 build_mixer_unit_ctl(state
, desc
, pin
, ich
,
1261 * Processing Unit / Extension Unit
1264 /* get callback for processing/extension unit */
1265 static int mixer_ctl_procunit_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1267 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1270 err
= get_cur_ctl_value(cval
, cval
->control
<< 8, &val
);
1271 if (err
< 0 && cval
->mixer
->ignore_ctl_error
) {
1272 ucontrol
->value
.integer
.value
[0] = cval
->min
;
1277 val
= get_relative_value(cval
, val
);
1278 ucontrol
->value
.integer
.value
[0] = val
;
1282 /* put callback for processing/extension unit */
1283 static int mixer_ctl_procunit_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1285 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1288 err
= get_cur_ctl_value(cval
, cval
->control
<< 8, &oval
);
1290 if (cval
->mixer
->ignore_ctl_error
)
1294 val
= ucontrol
->value
.integer
.value
[0];
1295 val
= get_abs_value(cval
, val
);
1297 set_cur_ctl_value(cval
, cval
->control
<< 8, val
);
1303 /* alsa control interface for processing/extension unit */
1304 static struct snd_kcontrol_new mixer_procunit_ctl
= {
1305 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1306 .name
= "", /* will be filled later */
1307 .info
= mixer_ctl_feature_info
,
1308 .get
= mixer_ctl_procunit_get
,
1309 .put
= mixer_ctl_procunit_put
,
1314 * predefined data for processing units
1316 struct procunit_value_info
{
1323 struct procunit_info
{
1326 struct procunit_value_info
*values
;
1329 static struct procunit_value_info updown_proc_info
[] = {
1330 { USB_PROC_UPDOWN_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1331 { USB_PROC_UPDOWN_MODE_SEL
, "Mode Select", USB_MIXER_U8
, 1 },
1334 static struct procunit_value_info prologic_proc_info
[] = {
1335 { USB_PROC_PROLOGIC_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1336 { USB_PROC_PROLOGIC_MODE_SEL
, "Mode Select", USB_MIXER_U8
, 1 },
1339 static struct procunit_value_info threed_enh_proc_info
[] = {
1340 { USB_PROC_3DENH_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1341 { USB_PROC_3DENH_SPACE
, "Spaciousness", USB_MIXER_U8
},
1344 static struct procunit_value_info reverb_proc_info
[] = {
1345 { USB_PROC_REVERB_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1346 { USB_PROC_REVERB_LEVEL
, "Level", USB_MIXER_U8
},
1347 { USB_PROC_REVERB_TIME
, "Time", USB_MIXER_U16
},
1348 { USB_PROC_REVERB_DELAY
, "Delay", USB_MIXER_U8
},
1351 static struct procunit_value_info chorus_proc_info
[] = {
1352 { USB_PROC_CHORUS_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1353 { USB_PROC_CHORUS_LEVEL
, "Level", USB_MIXER_U8
},
1354 { USB_PROC_CHORUS_RATE
, "Rate", USB_MIXER_U16
},
1355 { USB_PROC_CHORUS_DEPTH
, "Depth", USB_MIXER_U16
},
1358 static struct procunit_value_info dcr_proc_info
[] = {
1359 { USB_PROC_DCR_SWITCH
, "Switch", USB_MIXER_BOOLEAN
},
1360 { USB_PROC_DCR_RATIO
, "Ratio", USB_MIXER_U16
},
1361 { USB_PROC_DCR_MAX_AMP
, "Max Amp", USB_MIXER_S16
},
1362 { USB_PROC_DCR_THRESHOLD
, "Threshold", USB_MIXER_S16
},
1363 { USB_PROC_DCR_ATTACK
, "Attack Time", USB_MIXER_U16
},
1364 { USB_PROC_DCR_RELEASE
, "Release Time", USB_MIXER_U16
},
1368 static struct procunit_info procunits
[] = {
1369 { USB_PROC_UPDOWN
, "Up Down", updown_proc_info
},
1370 { USB_PROC_PROLOGIC
, "Dolby Prologic", prologic_proc_info
},
1371 { USB_PROC_3DENH
, "3D Stereo Extender", threed_enh_proc_info
},
1372 { USB_PROC_REVERB
, "Reverb", reverb_proc_info
},
1373 { USB_PROC_CHORUS
, "Chorus", chorus_proc_info
},
1374 { USB_PROC_DCR
, "DCR", dcr_proc_info
},
1378 * predefined data for extension units
1380 static struct procunit_value_info clock_rate_xu_info
[] = {
1381 { USB_XU_CLOCK_RATE_SELECTOR
, "Selector", USB_MIXER_U8
, 0 },
1384 static struct procunit_value_info clock_source_xu_info
[] = {
1385 { USB_XU_CLOCK_SOURCE_SELECTOR
, "External", USB_MIXER_BOOLEAN
},
1388 static struct procunit_value_info spdif_format_xu_info
[] = {
1389 { USB_XU_DIGITAL_FORMAT_SELECTOR
, "SPDIF/AC3", USB_MIXER_BOOLEAN
},
1392 static struct procunit_value_info soft_limit_xu_info
[] = {
1393 { USB_XU_SOFT_LIMIT_SELECTOR
, " ", USB_MIXER_BOOLEAN
},
1396 static struct procunit_info extunits
[] = {
1397 { USB_XU_CLOCK_RATE
, "Clock rate", clock_rate_xu_info
},
1398 { USB_XU_CLOCK_SOURCE
, "DigitalIn CLK source", clock_source_xu_info
},
1399 { USB_XU_DIGITAL_IO_STATUS
, "DigitalOut format:", spdif_format_xu_info
},
1400 { USB_XU_DEVICE_OPTIONS
, "AnalogueIn Soft Limit", soft_limit_xu_info
},
1404 * build a processing/extension unit
1406 static int build_audio_procunit(struct mixer_build
*state
, int unitid
, unsigned char *dsc
, struct procunit_info
*list
, char *name
)
1408 int num_ins
= dsc
[6];
1409 struct usb_mixer_elem_info
*cval
;
1410 struct snd_kcontrol
*kctl
;
1411 int i
, err
, nameid
, type
, len
;
1412 struct procunit_info
*info
;
1413 struct procunit_value_info
*valinfo
;
1414 const struct usbmix_name_map
*map
;
1415 static struct procunit_value_info default_value_info
[] = {
1416 { 0x01, "Switch", USB_MIXER_BOOLEAN
},
1419 static struct procunit_info default_info
= {
1420 0, NULL
, default_value_info
1423 if (dsc
[0] < 13 || dsc
[0] < 13 + num_ins
|| dsc
[0] < num_ins
+ dsc
[11 + num_ins
]) {
1424 snd_printk(KERN_ERR
"invalid %s descriptor (id %d)\n", name
, unitid
);
1428 for (i
= 0; i
< num_ins
; i
++) {
1429 if ((err
= parse_audio_unit(state
, dsc
[7 + i
])) < 0)
1433 type
= combine_word(&dsc
[4]);
1434 for (info
= list
; info
&& info
->type
; info
++)
1435 if (info
->type
== type
)
1437 if (! info
|| ! info
->type
)
1438 info
= &default_info
;
1440 for (valinfo
= info
->values
; valinfo
->control
; valinfo
++) {
1441 /* FIXME: bitmap might be longer than 8bit */
1442 if (! (dsc
[12 + num_ins
] & (1 << (valinfo
->control
- 1))))
1444 map
= find_map(state
, unitid
, valinfo
->control
);
1445 if (check_ignored_ctl(map
))
1447 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
1449 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1452 cval
->mixer
= state
->mixer
;
1454 cval
->control
= valinfo
->control
;
1455 cval
->val_type
= valinfo
->val_type
;
1458 /* get min/max values */
1459 if (type
== USB_PROC_UPDOWN
&& cval
->control
== USB_PROC_UPDOWN_MODE_SEL
) {
1460 /* FIXME: hard-coded */
1462 cval
->max
= dsc
[15];
1464 cval
->initialized
= 1;
1466 if (type
== USB_XU_CLOCK_RATE
) {
1467 /* E-Mu USB 0404/0202/TrackerPre
1468 * samplerate control quirk
1473 cval
->initialized
= 1;
1475 get_min_max(cval
, valinfo
->min_value
);
1478 kctl
= snd_ctl_new1(&mixer_procunit_ctl
, cval
);
1480 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1484 kctl
->private_free
= usb_mixer_elem_free
;
1486 if (check_mapped_name(map
, kctl
->id
.name
,
1487 sizeof(kctl
->id
.name
)))
1489 else if (info
->name
)
1490 strlcpy(kctl
->id
.name
, info
->name
, sizeof(kctl
->id
.name
));
1492 nameid
= dsc
[12 + num_ins
+ dsc
[11 + num_ins
]];
1495 len
= snd_usb_copy_string_desc(state
, nameid
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1497 strlcpy(kctl
->id
.name
, name
, sizeof(kctl
->id
.name
));
1499 append_ctl_name(kctl
, " ");
1500 append_ctl_name(kctl
, valinfo
->suffix
);
1502 snd_printdd(KERN_INFO
"[%d] PU [%s] ch = %d, val = %d/%d\n",
1503 cval
->id
, kctl
->id
.name
, cval
->channels
, cval
->min
, cval
->max
);
1504 if ((err
= add_control_to_empty(state
, kctl
)) < 0)
1511 static int parse_audio_processing_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1513 return build_audio_procunit(state
, unitid
, desc
, procunits
, "Processing Unit");
1516 static int parse_audio_extension_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1518 return build_audio_procunit(state
, unitid
, desc
, extunits
, "Extension Unit");
1526 /* info callback for selector unit
1527 * use an enumerator type for routing
1529 static int mixer_ctl_selector_info(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_info
*uinfo
)
1531 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1532 char **itemlist
= (char **)kcontrol
->private_value
;
1534 if (snd_BUG_ON(!itemlist
))
1536 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
1538 uinfo
->value
.enumerated
.items
= cval
->max
;
1539 if ((int)uinfo
->value
.enumerated
.item
>= cval
->max
)
1540 uinfo
->value
.enumerated
.item
= cval
->max
- 1;
1541 strcpy(uinfo
->value
.enumerated
.name
, itemlist
[uinfo
->value
.enumerated
.item
]);
1545 /* get callback for selector unit */
1546 static int mixer_ctl_selector_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1548 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1551 err
= get_cur_ctl_value(cval
, 0, &val
);
1553 if (cval
->mixer
->ignore_ctl_error
) {
1554 ucontrol
->value
.enumerated
.item
[0] = 0;
1559 val
= get_relative_value(cval
, val
);
1560 ucontrol
->value
.enumerated
.item
[0] = val
;
1564 /* put callback for selector unit */
1565 static int mixer_ctl_selector_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
1567 struct usb_mixer_elem_info
*cval
= kcontrol
->private_data
;
1570 err
= get_cur_ctl_value(cval
, 0, &oval
);
1572 if (cval
->mixer
->ignore_ctl_error
)
1576 val
= ucontrol
->value
.enumerated
.item
[0];
1577 val
= get_abs_value(cval
, val
);
1579 set_cur_ctl_value(cval
, 0, val
);
1585 /* alsa control interface for selector unit */
1586 static struct snd_kcontrol_new mixer_selectunit_ctl
= {
1587 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1588 .name
= "", /* will be filled later */
1589 .info
= mixer_ctl_selector_info
,
1590 .get
= mixer_ctl_selector_get
,
1591 .put
= mixer_ctl_selector_put
,
1595 /* private free callback.
1596 * free both private_data and private_value
1598 static void usb_mixer_selector_elem_free(struct snd_kcontrol
*kctl
)
1602 if (kctl
->private_data
) {
1603 struct usb_mixer_elem_info
*cval
= kctl
->private_data
;
1604 num_ins
= cval
->max
;
1606 kctl
->private_data
= NULL
;
1608 if (kctl
->private_value
) {
1609 char **itemlist
= (char **)kctl
->private_value
;
1610 for (i
= 0; i
< num_ins
; i
++)
1613 kctl
->private_value
= 0;
1618 * parse a selector unit
1620 static int parse_audio_selector_unit(struct mixer_build
*state
, int unitid
, unsigned char *desc
)
1622 unsigned int num_ins
= desc
[4];
1623 unsigned int i
, nameid
, len
;
1625 struct usb_mixer_elem_info
*cval
;
1626 struct snd_kcontrol
*kctl
;
1627 const struct usbmix_name_map
*map
;
1630 if (! num_ins
|| desc
[0] < 5 + num_ins
) {
1631 snd_printk(KERN_ERR
"invalid SELECTOR UNIT descriptor %d\n", unitid
);
1635 for (i
= 0; i
< num_ins
; i
++) {
1636 if ((err
= parse_audio_unit(state
, desc
[5 + i
])) < 0)
1640 if (num_ins
== 1) /* only one ? nonsense! */
1643 map
= find_map(state
, unitid
, 0);
1644 if (check_ignored_ctl(map
))
1647 cval
= kzalloc(sizeof(*cval
), GFP_KERNEL
);
1649 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1652 cval
->mixer
= state
->mixer
;
1654 cval
->val_type
= USB_MIXER_U8
;
1657 cval
->max
= num_ins
;
1659 cval
->initialized
= 1;
1661 namelist
= kmalloc(sizeof(char *) * num_ins
, GFP_KERNEL
);
1663 snd_printk(KERN_ERR
"cannot malloc\n");
1667 #define MAX_ITEM_NAME_LEN 64
1668 for (i
= 0; i
< num_ins
; i
++) {
1669 struct usb_audio_term iterm
;
1671 namelist
[i
] = kmalloc(MAX_ITEM_NAME_LEN
, GFP_KERNEL
);
1672 if (! namelist
[i
]) {
1673 snd_printk(KERN_ERR
"cannot malloc\n");
1680 len
= check_mapped_selector_name(state
, unitid
, i
, namelist
[i
],
1682 if (! len
&& check_input_term(state
, desc
[5 + i
], &iterm
) >= 0)
1683 len
= get_term_name(state
, &iterm
, namelist
[i
], MAX_ITEM_NAME_LEN
, 0);
1685 sprintf(namelist
[i
], "Input %d", i
);
1688 kctl
= snd_ctl_new1(&mixer_selectunit_ctl
, cval
);
1690 snd_printk(KERN_ERR
"cannot malloc kcontrol\n");
1695 kctl
->private_value
= (unsigned long)namelist
;
1696 kctl
->private_free
= usb_mixer_selector_elem_free
;
1698 nameid
= desc
[desc
[0] - 1];
1699 len
= check_mapped_name(map
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1703 snd_usb_copy_string_desc(state
, nameid
, kctl
->id
.name
, sizeof(kctl
->id
.name
));
1705 len
= get_term_name(state
, &state
->oterm
,
1706 kctl
->id
.name
, sizeof(kctl
->id
.name
), 0);
1708 strlcpy(kctl
->id
.name
, "USB", sizeof(kctl
->id
.name
));
1710 if ((state
->oterm
.type
& 0xff00) == 0x0100)
1711 append_ctl_name(kctl
, " Capture Source");
1713 append_ctl_name(kctl
, " Playback Source");
1716 snd_printdd(KERN_INFO
"[%d] SU [%s] items = %d\n",
1717 cval
->id
, kctl
->id
.name
, num_ins
);
1718 if ((err
= add_control_to_empty(state
, kctl
)) < 0)
1726 * parse an audio unit recursively
1729 static int parse_audio_unit(struct mixer_build
*state
, int unitid
)
1733 if (test_and_set_bit(unitid
, state
->unitbitmap
))
1734 return 0; /* the unit already visited */
1736 p1
= find_audio_control_unit(state
, unitid
);
1738 snd_printk(KERN_ERR
"usbaudio: unit %d not found!\n", unitid
);
1743 case UAC_INPUT_TERMINAL
:
1745 case UAC_MIXER_UNIT
:
1746 return parse_audio_mixer_unit(state
, unitid
, p1
);
1747 case UAC_SELECTOR_UNIT
:
1748 return parse_audio_selector_unit(state
, unitid
, p1
);
1749 case UAC_FEATURE_UNIT
:
1750 return parse_audio_feature_unit(state
, unitid
, p1
);
1751 case UAC_PROCESSING_UNIT_V1
:
1752 return parse_audio_processing_unit(state
, unitid
, p1
);
1753 case UAC_EXTENSION_UNIT_V1
:
1754 return parse_audio_extension_unit(state
, unitid
, p1
);
1756 snd_printk(KERN_ERR
"usbaudio: unit %u: unexpected type 0x%02x\n", unitid
, p1
[2]);
1761 static void snd_usb_mixer_free(struct usb_mixer_interface
*mixer
)
1763 kfree(mixer
->id_elems
);
1765 kfree(mixer
->urb
->transfer_buffer
);
1766 usb_free_urb(mixer
->urb
);
1768 usb_free_urb(mixer
->rc_urb
);
1769 kfree(mixer
->rc_setup_packet
);
1773 static int snd_usb_mixer_dev_free(struct snd_device
*device
)
1775 struct usb_mixer_interface
*mixer
= device
->device_data
;
1776 snd_usb_mixer_free(mixer
);
1781 * create mixer controls
1783 * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers
1785 static int snd_usb_mixer_controls(struct usb_mixer_interface
*mixer
)
1787 struct uac_output_terminal_descriptor_v1
*desc
;
1788 struct mixer_build state
;
1790 const struct usbmix_ctl_map
*map
;
1791 struct usb_host_interface
*hostif
;
1793 hostif
= &usb_ifnum_to_if(mixer
->chip
->dev
, mixer
->ctrlif
)->altsetting
[0];
1794 memset(&state
, 0, sizeof(state
));
1795 state
.chip
= mixer
->chip
;
1796 state
.mixer
= mixer
;
1797 state
.buffer
= hostif
->extra
;
1798 state
.buflen
= hostif
->extralen
;
1800 /* check the mapping table */
1801 for (map
= usbmix_ctl_maps
; map
->id
; map
++) {
1802 if (map
->id
== state
.chip
->usb_id
) {
1803 state
.map
= map
->map
;
1804 state
.selector_map
= map
->selector_map
;
1805 mixer
->ignore_ctl_error
= map
->ignore_ctl_error
;
1811 while ((desc
= snd_usb_find_csint_desc(hostif
->extra
, hostif
->extralen
, desc
, UAC_OUTPUT_TERMINAL
)) != NULL
) {
1812 if (desc
->bLength
< 9)
1813 continue; /* invalid descriptor? */
1814 set_bit(desc
->bTerminalID
, state
.unitbitmap
); /* mark terminal ID as visited */
1815 state
.oterm
.id
= desc
->bTerminalID
;
1816 state
.oterm
.type
= le16_to_cpu(desc
->wTerminalType
);
1817 state
.oterm
.name
= desc
->iTerminal
;
1818 err
= parse_audio_unit(&state
, desc
->bSourceID
);
1825 static void snd_usb_mixer_notify_id(struct usb_mixer_interface
*mixer
,
1828 struct usb_mixer_elem_info
*info
;
1830 for (info
= mixer
->id_elems
[unitid
]; info
; info
= info
->next_id_elem
)
1831 snd_ctl_notify(mixer
->chip
->card
, SNDRV_CTL_EVENT_MASK_VALUE
,
1835 static void snd_usb_mixer_dump_cval(struct snd_info_buffer
*buffer
,
1837 struct usb_mixer_elem_info
*cval
)
1839 static char *val_types
[] = {"BOOLEAN", "INV_BOOLEAN",
1840 "S8", "U8", "S16", "U16"};
1841 snd_iprintf(buffer
, " Unit: %i\n", unitid
);
1843 snd_iprintf(buffer
, " Control: name=\"%s\", index=%i\n",
1844 cval
->elem_id
->name
, cval
->elem_id
->index
);
1845 snd_iprintf(buffer
, " Info: id=%i, control=%i, cmask=0x%x, "
1846 "channels=%i, type=\"%s\"\n", cval
->id
,
1847 cval
->control
, cval
->cmask
, cval
->channels
,
1848 val_types
[cval
->val_type
]);
1849 snd_iprintf(buffer
, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n",
1850 cval
->min
, cval
->max
, cval
->dBmin
, cval
->dBmax
);
1853 static void snd_usb_mixer_proc_read(struct snd_info_entry
*entry
,
1854 struct snd_info_buffer
*buffer
)
1856 struct snd_usb_audio
*chip
= entry
->private_data
;
1857 struct usb_mixer_interface
*mixer
;
1858 struct usb_mixer_elem_info
*cval
;
1861 list_for_each_entry(mixer
, &chip
->mixer_list
, list
) {
1863 "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n",
1864 chip
->usb_id
, mixer
->ctrlif
,
1865 mixer
->ignore_ctl_error
);
1866 snd_iprintf(buffer
, "Card: %s\n", chip
->card
->longname
);
1867 for (unitid
= 0; unitid
< MAX_ID_ELEMS
; unitid
++) {
1868 for (cval
= mixer
->id_elems
[unitid
]; cval
;
1869 cval
= cval
->next_id_elem
)
1870 snd_usb_mixer_dump_cval(buffer
, unitid
, cval
);
1875 static void snd_usb_mixer_memory_change(struct usb_mixer_interface
*mixer
,
1880 /* unit ids specific to Extigy/Audigy 2 NX: */
1882 case 0: /* remote control */
1883 mixer
->rc_urb
->dev
= mixer
->chip
->dev
;
1884 usb_submit_urb(mixer
->rc_urb
, GFP_ATOMIC
);
1886 case 4: /* digital in jack */
1887 case 7: /* line in jacks */
1888 case 19: /* speaker out jacks */
1889 case 20: /* headphones out jack */
1891 /* live24ext: 4 = line-in jack */
1892 case 3: /* hp-out jack (may actuate Mute) */
1893 if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
1894 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048))
1895 snd_usb_mixer_notify_id(mixer
, mixer
->rc_cfg
->mute_mixer_id
);
1898 snd_printd(KERN_DEBUG
"memory change in unknown unit %d\n", unitid
);
1903 static void snd_usb_mixer_status_complete(struct urb
*urb
)
1905 struct usb_mixer_interface
*mixer
= urb
->context
;
1907 if (urb
->status
== 0) {
1908 u8
*buf
= urb
->transfer_buffer
;
1911 for (i
= urb
->actual_length
; i
>= 2; buf
+= 2, i
-= 2) {
1912 snd_printd(KERN_DEBUG
"status interrupt: %02x %02x\n",
1914 /* ignore any notifications not from the control interface */
1915 if ((buf
[0] & 0x0f) != 0)
1917 if (!(buf
[0] & 0x40))
1918 snd_usb_mixer_notify_id(mixer
, buf
[1]);
1920 snd_usb_mixer_memory_change(mixer
, buf
[1]);
1923 if (urb
->status
!= -ENOENT
&& urb
->status
!= -ECONNRESET
) {
1924 urb
->dev
= mixer
->chip
->dev
;
1925 usb_submit_urb(urb
, GFP_ATOMIC
);
1929 /* create the handler for the optional status interrupt endpoint */
1930 static int snd_usb_mixer_status_create(struct usb_mixer_interface
*mixer
)
1932 struct usb_host_interface
*hostif
;
1933 struct usb_endpoint_descriptor
*ep
;
1934 void *transfer_buffer
;
1938 hostif
= &usb_ifnum_to_if(mixer
->chip
->dev
, mixer
->ctrlif
)->altsetting
[0];
1939 /* we need one interrupt input endpoint */
1940 if (get_iface_desc(hostif
)->bNumEndpoints
< 1)
1942 ep
= get_endpoint(hostif
, 0);
1943 if (!usb_endpoint_dir_in(ep
) || !usb_endpoint_xfer_int(ep
))
1946 epnum
= usb_endpoint_num(ep
);
1947 buffer_length
= le16_to_cpu(ep
->wMaxPacketSize
);
1948 transfer_buffer
= kmalloc(buffer_length
, GFP_KERNEL
);
1949 if (!transfer_buffer
)
1951 mixer
->urb
= usb_alloc_urb(0, GFP_KERNEL
);
1953 kfree(transfer_buffer
);
1956 usb_fill_int_urb(mixer
->urb
, mixer
->chip
->dev
,
1957 usb_rcvintpipe(mixer
->chip
->dev
, epnum
),
1958 transfer_buffer
, buffer_length
,
1959 snd_usb_mixer_status_complete
, mixer
, ep
->bInterval
);
1960 usb_submit_urb(mixer
->urb
, GFP_KERNEL
);
1964 static void snd_usb_soundblaster_remote_complete(struct urb
*urb
)
1966 struct usb_mixer_interface
*mixer
= urb
->context
;
1967 const struct rc_config
*rc
= mixer
->rc_cfg
;
1970 if (urb
->status
< 0 || urb
->actual_length
< rc
->min_packet_length
)
1973 code
= mixer
->rc_buffer
[rc
->offset
];
1974 if (rc
->length
== 2)
1975 code
|= mixer
->rc_buffer
[rc
->offset
+ 1] << 8;
1977 /* the Mute button actually changes the mixer control */
1978 if (code
== rc
->mute_code
)
1979 snd_usb_mixer_notify_id(mixer
, rc
->mute_mixer_id
);
1980 mixer
->rc_code
= code
;
1982 wake_up(&mixer
->rc_waitq
);
1985 static long snd_usb_sbrc_hwdep_read(struct snd_hwdep
*hw
, char __user
*buf
,
1986 long count
, loff_t
*offset
)
1988 struct usb_mixer_interface
*mixer
= hw
->private_data
;
1992 if (count
!= 1 && count
!= 4)
1994 err
= wait_event_interruptible(mixer
->rc_waitq
,
1995 (rc_code
= xchg(&mixer
->rc_code
, 0)) != 0);
1998 err
= put_user(rc_code
, buf
);
2000 err
= put_user(rc_code
, (u32 __user
*)buf
);
2002 return err
< 0 ? err
: count
;
2005 static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep
*hw
, struct file
*file
,
2008 struct usb_mixer_interface
*mixer
= hw
->private_data
;
2010 poll_wait(file
, &mixer
->rc_waitq
, wait
);
2011 return mixer
->rc_code
? POLLIN
| POLLRDNORM
: 0;
2014 static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface
*mixer
)
2016 struct snd_hwdep
*hwdep
;
2019 for (i
= 0; i
< ARRAY_SIZE(rc_configs
); ++i
)
2020 if (rc_configs
[i
].usb_id
== mixer
->chip
->usb_id
)
2022 if (i
>= ARRAY_SIZE(rc_configs
))
2024 mixer
->rc_cfg
= &rc_configs
[i
];
2026 len
= mixer
->rc_cfg
->packet_length
;
2028 init_waitqueue_head(&mixer
->rc_waitq
);
2029 err
= snd_hwdep_new(mixer
->chip
->card
, "SB remote control", 0, &hwdep
);
2032 snprintf(hwdep
->name
, sizeof(hwdep
->name
),
2033 "%s remote control", mixer
->chip
->card
->shortname
);
2034 hwdep
->iface
= SNDRV_HWDEP_IFACE_SB_RC
;
2035 hwdep
->private_data
= mixer
;
2036 hwdep
->ops
.read
= snd_usb_sbrc_hwdep_read
;
2037 hwdep
->ops
.poll
= snd_usb_sbrc_hwdep_poll
;
2038 hwdep
->exclusive
= 1;
2040 mixer
->rc_urb
= usb_alloc_urb(0, GFP_KERNEL
);
2043 mixer
->rc_setup_packet
= kmalloc(sizeof(*mixer
->rc_setup_packet
), GFP_KERNEL
);
2044 if (!mixer
->rc_setup_packet
) {
2045 usb_free_urb(mixer
->rc_urb
);
2046 mixer
->rc_urb
= NULL
;
2049 mixer
->rc_setup_packet
->bRequestType
=
2050 USB_DIR_IN
| USB_TYPE_CLASS
| USB_RECIP_INTERFACE
;
2051 mixer
->rc_setup_packet
->bRequest
= UAC_GET_MEM
;
2052 mixer
->rc_setup_packet
->wValue
= cpu_to_le16(0);
2053 mixer
->rc_setup_packet
->wIndex
= cpu_to_le16(0);
2054 mixer
->rc_setup_packet
->wLength
= cpu_to_le16(len
);
2055 usb_fill_control_urb(mixer
->rc_urb
, mixer
->chip
->dev
,
2056 usb_rcvctrlpipe(mixer
->chip
->dev
, 0),
2057 (u8
*)mixer
->rc_setup_packet
, mixer
->rc_buffer
, len
,
2058 snd_usb_soundblaster_remote_complete
, mixer
);
2062 #define snd_audigy2nx_led_info snd_ctl_boolean_mono_info
2064 static int snd_audigy2nx_led_get(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
2066 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2067 int index
= kcontrol
->private_value
;
2069 ucontrol
->value
.integer
.value
[0] = mixer
->audigy2nx_leds
[index
];
2073 static int snd_audigy2nx_led_put(struct snd_kcontrol
*kcontrol
, struct snd_ctl_elem_value
*ucontrol
)
2075 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2076 int index
= kcontrol
->private_value
;
2077 int value
= ucontrol
->value
.integer
.value
[0];
2082 changed
= value
!= mixer
->audigy2nx_leds
[index
];
2083 err
= snd_usb_ctl_msg(mixer
->chip
->dev
,
2084 usb_sndctrlpipe(mixer
->chip
->dev
, 0), 0x24,
2085 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_OTHER
,
2086 value
, index
+ 2, NULL
, 0, 100);
2089 mixer
->audigy2nx_leds
[index
] = value
;
2093 static struct snd_kcontrol_new snd_audigy2nx_controls
[] = {
2095 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2096 .name
= "CMSS LED Switch",
2097 .info
= snd_audigy2nx_led_info
,
2098 .get
= snd_audigy2nx_led_get
,
2099 .put
= snd_audigy2nx_led_put
,
2103 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2104 .name
= "Power LED Switch",
2105 .info
= snd_audigy2nx_led_info
,
2106 .get
= snd_audigy2nx_led_get
,
2107 .put
= snd_audigy2nx_led_put
,
2111 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2112 .name
= "Dolby Digital LED Switch",
2113 .info
= snd_audigy2nx_led_info
,
2114 .get
= snd_audigy2nx_led_get
,
2115 .put
= snd_audigy2nx_led_put
,
2120 static int snd_audigy2nx_controls_create(struct usb_mixer_interface
*mixer
)
2124 for (i
= 0; i
< ARRAY_SIZE(snd_audigy2nx_controls
); ++i
) {
2125 if (i
> 1 && /* Live24ext has 2 LEDs only */
2126 (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
2127 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048)))
2129 err
= snd_ctl_add(mixer
->chip
->card
,
2130 snd_ctl_new1(&snd_audigy2nx_controls
[i
], mixer
));
2134 mixer
->audigy2nx_leds
[1] = 1; /* Power LED is on by default */
2138 static void snd_audigy2nx_proc_read(struct snd_info_entry
*entry
,
2139 struct snd_info_buffer
*buffer
)
2141 static const struct sb_jack
{
2144 } jacks_audigy2nx
[] = {
2150 }, jacks_live24ext
[] = {
2151 {4, "line in"}, /* &1=Line, &2=Mic*/
2152 {3, "hph out"}, /* headphones */
2153 {0, "RC "}, /* last command, 6 bytes see rc_config above */
2156 const struct sb_jack
*jacks
;
2157 struct usb_mixer_interface
*mixer
= entry
->private_data
;
2161 snd_iprintf(buffer
, "%s jacks\n\n", mixer
->chip
->card
->shortname
);
2162 if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3020))
2163 jacks
= jacks_audigy2nx
;
2164 else if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
2165 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048))
2166 jacks
= jacks_live24ext
;
2170 for (i
= 0; jacks
[i
].name
; ++i
) {
2171 snd_iprintf(buffer
, "%s: ", jacks
[i
].name
);
2172 err
= snd_usb_ctl_msg(mixer
->chip
->dev
,
2173 usb_rcvctrlpipe(mixer
->chip
->dev
, 0),
2174 UAC_GET_MEM
, USB_DIR_IN
| USB_TYPE_CLASS
|
2175 USB_RECIP_INTERFACE
, 0,
2176 jacks
[i
].unitid
<< 8, buf
, 3, 100);
2177 if (err
== 3 && (buf
[0] == 3 || buf
[0] == 6))
2178 snd_iprintf(buffer
, "%02x %02x\n", buf
[1], buf
[2]);
2180 snd_iprintf(buffer
, "?\n");
2184 static int snd_xonar_u1_switch_get(struct snd_kcontrol
*kcontrol
,
2185 struct snd_ctl_elem_value
*ucontrol
)
2187 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2189 ucontrol
->value
.integer
.value
[0] = !!(mixer
->xonar_u1_status
& 0x02);
2193 static int snd_xonar_u1_switch_put(struct snd_kcontrol
*kcontrol
,
2194 struct snd_ctl_elem_value
*ucontrol
)
2196 struct usb_mixer_interface
*mixer
= snd_kcontrol_chip(kcontrol
);
2197 u8 old_status
, new_status
;
2200 old_status
= mixer
->xonar_u1_status
;
2201 if (ucontrol
->value
.integer
.value
[0])
2202 new_status
= old_status
| 0x02;
2204 new_status
= old_status
& ~0x02;
2205 changed
= new_status
!= old_status
;
2206 err
= snd_usb_ctl_msg(mixer
->chip
->dev
,
2207 usb_sndctrlpipe(mixer
->chip
->dev
, 0), 0x08,
2208 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_OTHER
,
2209 50, 0, &new_status
, 1, 100);
2212 mixer
->xonar_u1_status
= new_status
;
2216 static struct snd_kcontrol_new snd_xonar_u1_output_switch
= {
2217 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
2218 .name
= "Digital Playback Switch",
2219 .info
= snd_ctl_boolean_mono_info
,
2220 .get
= snd_xonar_u1_switch_get
,
2221 .put
= snd_xonar_u1_switch_put
,
2224 static int snd_xonar_u1_controls_create(struct usb_mixer_interface
*mixer
)
2228 err
= snd_ctl_add(mixer
->chip
->card
,
2229 snd_ctl_new1(&snd_xonar_u1_output_switch
, mixer
));
2232 mixer
->xonar_u1_status
= 0x05;
2236 void snd_emuusb_set_samplerate(struct snd_usb_audio
*chip
,
2237 unsigned char samplerate_id
)
2239 struct usb_mixer_interface
*mixer
;
2240 struct usb_mixer_elem_info
*cval
;
2241 int unitid
= 12; /* SamleRate ExtensionUnit ID */
2243 list_for_each_entry(mixer
, &chip
->mixer_list
, list
) {
2244 cval
= mixer
->id_elems
[unitid
];
2246 set_cur_ctl_value(cval
, cval
->control
<< 8,
2248 snd_usb_mixer_notify_id(mixer
, unitid
);
2254 int snd_usb_create_mixer(struct snd_usb_audio
*chip
, int ctrlif
,
2257 static struct snd_device_ops dev_ops
= {
2258 .dev_free
= snd_usb_mixer_dev_free
2260 struct usb_mixer_interface
*mixer
;
2261 struct snd_info_entry
*entry
;
2262 struct usb_host_interface
*host_iface
;
2265 strcpy(chip
->card
->mixername
, "USB Mixer");
2267 mixer
= kzalloc(sizeof(*mixer
), GFP_KERNEL
);
2271 mixer
->ctrlif
= ctrlif
;
2272 mixer
->ignore_ctl_error
= ignore_error
;
2273 mixer
->id_elems
= kcalloc(MAX_ID_ELEMS
, sizeof(*mixer
->id_elems
),
2275 if (!mixer
->id_elems
) {
2280 host_iface
= &usb_ifnum_to_if(chip
->dev
, ctrlif
)->altsetting
[0];
2281 protocol
= host_iface
->desc
.bInterfaceProtocol
;
2284 if (protocol
!= UAC_VERSION_1
) {
2285 snd_printk(KERN_WARNING
"mixer interface protocol 0x%02x not yet supported\n",
2290 if ((err
= snd_usb_mixer_controls(mixer
)) < 0 ||
2291 (err
= snd_usb_mixer_status_create(mixer
)) < 0)
2294 if ((err
= snd_usb_soundblaster_remote_init(mixer
)) < 0)
2297 if (mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3020) ||
2298 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3040) ||
2299 mixer
->chip
->usb_id
== USB_ID(0x041e, 0x3048)) {
2300 if ((err
= snd_audigy2nx_controls_create(mixer
)) < 0)
2302 if (!snd_card_proc_new(chip
->card
, "audigy2nx", &entry
))
2303 snd_info_set_text_ops(entry
, mixer
,
2304 snd_audigy2nx_proc_read
);
2307 if (mixer
->chip
->usb_id
== USB_ID(0x0b05, 0x1739) ||
2308 mixer
->chip
->usb_id
== USB_ID(0x0b05, 0x1743)) {
2309 err
= snd_xonar_u1_controls_create(mixer
);
2314 err
= snd_device_new(chip
->card
, SNDRV_DEV_LOWLEVEL
, mixer
, &dev_ops
);
2318 if (list_empty(&chip
->mixer_list
) &&
2319 !snd_card_proc_new(chip
->card
, "usbmixer", &entry
))
2320 snd_info_set_text_ops(entry
, chip
, snd_usb_mixer_proc_read
);
2322 list_add(&mixer
->list
, &chip
->mixer_list
);
2326 snd_usb_mixer_free(mixer
);
2330 void snd_usb_mixer_disconnect(struct list_head
*p
)
2332 struct usb_mixer_interface
*mixer
;
2334 mixer
= list_entry(p
, struct usb_mixer_interface
, list
);
2335 usb_kill_urb(mixer
->urb
);
2336 usb_kill_urb(mixer
->rc_urb
);