You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.5 KiB
72 lines
2.5 KiB
/* snd_utils.h
|
|
**
|
|
** Copyright (c) 2019, The Linux Foundation. All rights reserved.
|
|
**
|
|
** Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions are
|
|
** met:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above
|
|
** copyright notice, this list of conditions and the following
|
|
** disclaimer in the documentation and/or other materials provided
|
|
** with the distribution.
|
|
** * Neither the name of The Linux Foundation nor the names of its
|
|
** contributors may be used to endorse or promote products derived
|
|
** from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
|
|
** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
|
|
** BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
|
|
** IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
**/
|
|
|
|
#ifndef __SND_CARD_UTILS_H__
|
|
#define __SND_CARD_UTILS_H__
|
|
|
|
#include <dlfcn.h>
|
|
|
|
struct snd_node {
|
|
void *card_node;
|
|
void *dev_node;
|
|
void *dl_hdl;
|
|
|
|
void* (*get_card) (unsigned int card);
|
|
void (*put_card) (void *card);
|
|
void* (*get_node) (void *card, unsigned int id,
|
|
int type);
|
|
int (*get_int) (void *node, const char *prop, int *val);
|
|
int (*get_str) (void *node, const char *prop, char **val);
|
|
};
|
|
|
|
enum {
|
|
NODE_PCM,
|
|
NODE_MIXER,
|
|
};
|
|
|
|
enum snd_node_type {
|
|
SND_NODE_TYPE_HW = 0,
|
|
SND_NODE_TYPE_PLUGIN,
|
|
SND_NODE_TYPE_INVALID,
|
|
};
|
|
|
|
struct snd_node *snd_utils_get_dev_node(unsigned int card,
|
|
unsigned int device, int dev_type);
|
|
|
|
void snd_utils_put_dev_node(struct snd_node *node);
|
|
|
|
enum snd_node_type snd_utils_get_node_type(struct snd_node *node);
|
|
|
|
int snd_utils_get_int(struct snd_node *node, const char *prop, int *val);
|
|
|
|
int snd_utils_get_str(struct snd_node *node, const char *prop, char **val);
|
|
|
|
#endif /* end of __SND_CARD_UTILS_H__ */
|