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/*
* 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
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "local.h"
typedef struct _bag1 {
void *ptr;
struct list_head list;
} bag1_t;
typedef struct list_head bag_t;
int bag_new(bag_t **bag);
void bag_free(bag_t *bag);
int bag_add(bag_t *bag, void *ptr);
int bag_del(bag_t *bag, void *ptr);
int bag_empty(bag_t *bag);
void bag_del_all(bag_t *bag);
typedef struct list_head *bag_iterator_t;
#define bag_iterator_entry(i) (list_entry((i), bag1_t, list)->ptr)
#define bag_for_each(pos, bag) list_for_each(pos, bag)
#define bag_for_each_safe(pos, next, bag) list_for_each_safe(pos, next, bag)
struct _snd_mixer_class {
struct list_head list;
snd_mixer_t *mixer;
snd_mixer_event_t event;
void *private_data;
void (*private_free)(snd_mixer_class_t *class);
snd_mixer_compare_t compare;
};
struct _snd_mixer_elem {
snd_mixer_elem_type_t type;
struct list_head list; /* links for list of all elems */
snd_mixer_class_t *class;
void *private_data;
void (*private_free)(snd_mixer_elem_t *elem);
snd_mixer_elem_callback_t callback;
void *callback_private;
bag_t helems;
int compare_weight; /* compare weight (reversed) */
};
struct _snd_mixer {
struct list_head slaves; /* list of all slaves */
struct list_head classes; /* list of all elem classes */
struct list_head elems; /* list of all elems */
snd_mixer_elem_t **pelems; /* array of all elems */
unsigned int count;
unsigned int alloc;
unsigned int events;
snd_mixer_callback_t callback;
void *callback_private;
snd_mixer_compare_t compare;
};
struct _snd_mixer_selem_id {
char name[60];
unsigned int index;
};
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