alsa-utils/alsamixer/mixer_controls.h

38 lines
967 B
C
Raw Normal View History

#ifndef MIXER_CONTROLS_H_INCLUDED
#define MIXER_CONTROLS_H_INCLUDED
#include <alsa/asoundlib.h>
struct control {
snd_mixer_elem_t *elem;
char *name;
unsigned int flags;
#define TYPE_PVOLUME (1u << 4)
#define TYPE_CVOLUME (1u << 5)
#define TYPE_PSWITCH (1u << 6)
#define TYPE_CSWITCH (1u << 7)
#define TYPE_ENUM (1u << 8)
#define HAS_VOLUME_0 (1u << 9)
#define HAS_VOLUME_1 (1u << 10)
#define HAS_PSWITCH_0 (1u << 11)
#define HAS_PSWITCH_1 (1u << 12)
#define HAS_CSWITCH_0 (1u << 13)
#define HAS_CSWITCH_1 (1u << 14)
#define IS_MULTICH (1u << 15)
#define IS_ACTIVE (1u << 16)
#define MULTICH_MASK (0x0000f)
snd_mixer_selem_channel_id_t volume_channels[2];
snd_mixer_selem_channel_id_t pswitch_channels[2];
snd_mixer_selem_channel_id_t cswitch_channels[2];
unsigned int enum_channel_bits;
};
extern struct control *controls;
extern unsigned int controls_count;
bool are_there_any_controls(void);
void create_controls(void);
void free_controls(void);
#endif