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https://github.com/alsa-project/alsa-utils
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5b6b5fd14b
For multichannel mixer controls, add the channel name to each screen control. Also make some other small changes. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
38 lines
967 B
C
38 lines
967 B
C
#ifndef MIXER_CONTROLS_H_INCLUDED
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#define MIXER_CONTROLS_H_INCLUDED
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#include <alsa/asoundlib.h>
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struct control {
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snd_mixer_elem_t *elem;
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char *name;
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unsigned int flags;
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#define TYPE_PVOLUME (1u << 4)
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#define TYPE_CVOLUME (1u << 5)
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#define TYPE_PSWITCH (1u << 6)
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#define TYPE_CSWITCH (1u << 7)
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#define TYPE_ENUM (1u << 8)
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#define HAS_VOLUME_0 (1u << 9)
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#define HAS_VOLUME_1 (1u << 10)
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#define HAS_PSWITCH_0 (1u << 11)
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#define HAS_PSWITCH_1 (1u << 12)
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#define HAS_CSWITCH_0 (1u << 13)
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#define HAS_CSWITCH_1 (1u << 14)
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#define IS_MULTICH (1u << 15)
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#define IS_ACTIVE (1u << 16)
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#define MULTICH_MASK (0x0000f)
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snd_mixer_selem_channel_id_t volume_channels[2];
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snd_mixer_selem_channel_id_t pswitch_channels[2];
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snd_mixer_selem_channel_id_t cswitch_channels[2];
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unsigned int enum_channel_bits;
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};
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extern struct control *controls;
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extern unsigned int controls_count;
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bool are_there_any_controls(void);
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void create_controls(void);
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void free_controls(void);
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#endif
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