blob: a7cf1007fbb07478fa6a81280174aa919ac8ec4e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
#ifndef __USBMIXER_H
#define __USBMIXER_H
struct usb_mixer_interface {
struct snd_usb_audio *chip;
unsigned int ctrlif;
struct list_head list;
unsigned int ignore_ctl_error;
struct urb *urb;
/* array[MAX_ID_ELEMS], indexed by unit id */
struct usb_mixer_elem_info **id_elems;
/* the usb audio specification version this interface complies to */
int protocol;
/* Sound Blaster remote control stuff */
const struct rc_config *rc_cfg;
u32 rc_code;
wait_queue_head_t rc_waitq;
struct urb *rc_urb;
struct usb_ctrlrequest *rc_setup_packet;
u8 rc_buffer[6];
u8 audigy2nx_leds[3];
u8 xonar_u1_status;
};
#define MAX_CHANNELS 10 /* max logical channels */
struct usb_mixer_elem_info {
struct usb_mixer_interface *mixer;
struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */
struct snd_ctl_elem_id *elem_id;
unsigned int id;
unsigned int control; /* CS or ICN (high byte) */
unsigned int cmask; /* channel mask bitmap: 0 = master */
unsigned int ch_readonly;
unsigned int master_readonly;
int channels;
int val_type;
int min, max, res;
int dBmin, dBmax;
int cached;
int cache_val[MAX_CHANNELS];
u8 initialized;
};
int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
int ignore_error);
void snd_usb_mixer_disconnect(struct list_head *p);
void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
int request, int validx, int value_set);
#endif /* __USBMIXER_H */
|
