nfsd4: typo logical vs bitwise negate for want_mask
[linux-btrfs-devel.git] / sound / usb / mixer.h
blobae1a14dcfe82cf51753da7265bcdaf6ce95969f4
1 #ifndef __USBMIXER_H
2 #define __USBMIXER_H
4 struct usb_mixer_interface {
5 struct snd_usb_audio *chip;
6 struct list_head list;
7 unsigned int ignore_ctl_error;
8 struct urb *urb;
9 /* array[MAX_ID_ELEMS], indexed by unit id */
10 struct usb_mixer_elem_info **id_elems;
12 /* the usb audio specification version this interface complies to */
13 int protocol;
15 /* Sound Blaster remote control stuff */
16 const struct rc_config *rc_cfg;
17 u32 rc_code;
18 wait_queue_head_t rc_waitq;
19 struct urb *rc_urb;
20 struct usb_ctrlrequest *rc_setup_packet;
21 u8 rc_buffer[6];
23 u8 audigy2nx_leds[3];
24 u8 xonar_u1_status;
27 #define MAX_CHANNELS 16 /* max logical channels */
29 enum {
30 USB_MIXER_BOOLEAN,
31 USB_MIXER_INV_BOOLEAN,
32 USB_MIXER_S8,
33 USB_MIXER_U8,
34 USB_MIXER_S16,
35 USB_MIXER_U16,
38 struct usb_mixer_elem_info {
39 struct usb_mixer_interface *mixer;
40 struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */
41 struct snd_ctl_elem_id *elem_id;
42 unsigned int id;
43 unsigned int control; /* CS or ICN (high byte) */
44 unsigned int cmask; /* channel mask bitmap: 0 = master */
45 unsigned int ch_readonly;
46 unsigned int master_readonly;
47 int channels;
48 int val_type;
49 int min, max, res;
50 int dBmin, dBmax;
51 int cached;
52 int cache_val[MAX_CHANNELS];
53 u8 initialized;
56 int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
57 int ignore_error);
58 void snd_usb_mixer_disconnect(struct list_head *p);
60 void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
62 int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
63 int request, int validx, int value_set);
64 void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer);
65 int snd_usb_mixer_activate(struct usb_mixer_interface *mixer);
67 int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
68 struct snd_kcontrol *kctl);
70 #endif /* __USBMIXER_H */