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/*
* Mixer Interface - simple abstact module - base library
* Copyright (c) 2005 by Jaroslav Kysela <perex@perex.cz>
*
*
* 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
*
*/
#ifndef __SMIXER_BASE_H
#include "list.h"
#define MAX_CHANNEL 6
#define SID_MASTER 0
#define SID_HEADPHONE 1
#define SID_FRONT 2
#define SID_PCM 3
#define SID_CD 4
struct melem_sids {
unsigned short sid;
const char *sname;
unsigned short sindex;
unsigned short weight;
unsigned int chanmap[2];
struct sm_elem_ops *sops;
};
#define PURPOSE_VOLUME 0
#define PURPOSE_SWITCH 1
#define PURPOSE_ENUMLIST 2
struct helem_selector {
snd_ctl_elem_iface_t iface;
const char *name;
unsigned short index;
unsigned short sid;
unsigned short purpose;
unsigned short caps;
};
struct helem_base {
struct list_head list;
snd_hctl_elem_t *helem;
unsigned short purpose;
unsigned int caps;
unsigned int inactive: 1;
long min, max;
unsigned int count;
};
struct selem_base {
sm_selem_t selem;
struct list_head helems;
unsigned short sid;
struct {
unsigned int chanmap;
unsigned int forced_range: 1;
long min, max;
long vol[MAX_CHANNEL];
} dir[2];
};
struct bclass_selector {
struct list_head list;
struct helem_selector *selectors;
unsigned int count;
};
struct bclass_sid {
struct list_head list;
struct melem_sids *sids;
unsigned int count;
};
typedef struct bclass_base_ops {
int (*event)(snd_mixer_class_t *class, unsigned int mask,
snd_hctl_elem_t *helem, snd_mixer_elem_t *melem);
int (*selreg)(snd_mixer_class_t *class,
struct helem_selector *selectors,
unsigned int count);
int (*sidreg)(snd_mixer_class_t *class,
struct melem_sids *sids,
unsigned int count);
} bclass_base_ops_t;
struct bclass_private {
struct list_head selectors;
struct list_head sids;
void *dl_sbase;
bclass_base_ops_t ops;
};
int mixer_simple_basic_dlopen(snd_mixer_class_t *class,
bclass_base_ops_t **ops);
#endif /* __SMIXER_BASE_H */
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