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Completed control and mixer API

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This commit is contained in:
Abramo Bagnara 2001-02-09 11:20:31 +00:00
parent c709b0a627
commit fea0c73cdb
23 changed files with 1988 additions and 1251 deletions
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111
src/mixer/mixer_local.h
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@ -1,6 +1,7 @@
/*
* Mixer Interface - local header file
* Copyright (c) 2000 by Jaroslav Kysela <perex@suse.cz>
* Copyright (c) 2001 by Abramo Bagnara <abramo@alsa-project.org>
*
*
* This library is free software; you can redistribute it and/or modify
@ -19,72 +20,62 @@
*
*/
#include "local.h"
//#include "../control/control_local.h"
#include "list.h"
#include "local.h"
typedef struct _mixer_simple mixer_simple_t;
typedef struct _mixer_simple_hctl_element_private mixer_simple_hctl_element_private_t;
typedef struct _snd_hctl_bag {
void *root;
void *private;
} snd_hctl_bag_t;
typedef int (mixer_simple_get_t) (snd_mixer_t *handle, mixer_simple_t *simple, snd_mixer_simple_element_t *control);
typedef int (mixer_simple_put_t) (snd_mixer_t *handle, mixer_simple_t *simple, snd_mixer_simple_element_t *control);
typedef int (mixer_simple_event_add_t) (snd_mixer_t *handle, snd_hctl_element_t *helem);
int snd_hctl_bag_destroy(snd_hctl_bag_t *bag);
int snd_hctl_bag_add(snd_hctl_bag_t *bag, snd_hctl_elem_t *helem);
int snd_hctl_bag_del(snd_hctl_bag_t *bag, snd_hctl_elem_t *helem);
snd_hctl_elem_t *snd_hctl_bag_find(snd_hctl_bag_t *bag, snd_ctl_elem_id_t *id);
int snd_hctl_bag_empty(snd_hctl_bag_t *bag);
#define MIXER_PRESENT_SINGLE_SWITCH (1<<0)
#define MIXER_PRESENT_SINGLE_VOLUME (1<<1)
#define MIXER_PRESENT_GLOBAL_SWITCH (1<<2)
#define MIXER_PRESENT_GLOBAL_VOLUME (1<<3)
#define MIXER_PRESENT_GLOBAL_ROUTE (1<<4)
#define MIXER_PRESENT_PLAYBACK_SWITCH (1<<5)
#define MIXER_PRESENT_PLAYBACK_VOLUME (1<<6)
#define MIXER_PRESENT_PLAYBACK_ROUTE (1<<7)
#define MIXER_PRESENT_CAPTURE_SWITCH (1<<8)
#define MIXER_PRESENT_CAPTURE_VOLUME (1<<9)
#define MIXER_PRESENT_CAPTURE_ROUTE (1<<10)
#define MIXER_PRESENT_CAPTURE_SOURCE (1<<11)
struct _mixer_simple {
/* this may be moved to a private area */
unsigned int present; /* present controls */
unsigned int global_values;
unsigned int gswitch_values;
unsigned int pswitch_values;
unsigned int cswitch_values;
unsigned int gvolume_values;
unsigned int pvolume_values;
unsigned int cvolume_values;
unsigned int groute_values;
unsigned int proute_values;
unsigned int croute_values;
unsigned int ccapture_values;
unsigned int capture_item;
unsigned int caps;
long min;
long max;
int voices;
/* -- */
int refs; /* number of references */
int change; /* simple control was changed */
snd_mixer_sid_t sid;
mixer_simple_get_t *get;
mixer_simple_put_t *put;
mixer_simple_event_add_t *event_add;
struct list_head list;
void *helems; /* bag of associated helems */
unsigned long private_value;
struct _snd_mixer_elem {
snd_mixer_elem_type_t type;
struct list_head list; /* links for list of all elems */
void *private;
void (*private_free)(snd_mixer_elem_t *elem);
snd_mixer_elem_callback_t callback;
void *callback_private;
snd_mixer_t *mixer;
};
struct _mixer_simple_hctl_element_private {
void *simples; /* list of associated helems */
};
struct _snd_mixer {
snd_ctl_t *ctl_handle;
int simple_valid;
int simple_changes; /* total number of changes */
int simple_count;
struct list_head simples; /* list of all simple controls */
snd_mixer_simple_callbacks_t *callbacks;
snd_ctl_t *ctl;
struct list_head elems; /* list of all elemss */
unsigned int count;
snd_mixer_callback_t callback;
void *callback_private;
};
int snd_mixer_simple_build(snd_mixer_t *handle);
int snd_mixer_simple_destroy(snd_mixer_t *handle);
#define SND_MIXER_SCTCAP_VOLUME (1<<0)
#define SND_MIXER_SCTCAP_JOIN_VOLUME (1<<1)
#define SND_MIXER_SCTCAP_MUTE (1<<2)
#define SND_MIXER_SCTCAP_JOIN_MUTE (1<<3)
#define SND_MIXER_SCTCAP_CAPTURE (1<<4)
#define SND_MIXER_SCTCAP_JOIN_CAPTURE (1<<5)
#define SND_MIXER_SCTCAP_EXCL_CAPTURE (1<<6)
struct _snd_mixer_selem_id {
unsigned char name[60];
unsigned int index;
};
struct _snd_mixer_selem {
unsigned int caps; /* RO: capabilities */
unsigned int channels; /* RO: bitmap of active channels */
unsigned int mute; /* RW: bitmap of muted channels */
unsigned int capture; /* RW: bitmap of capture channels */
int capture_group; /* RO: capture group (for exclusive capture) */
long min; /* RO: minimum value */
long max; /* RO: maximum value */
long volume[32];
};
snd_mixer_elem_t *snd_mixer_elem_add(snd_mixer_t *mixer);
void snd_mixer_free(snd_mixer_t *mixer);