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/*
* AlsaLibMapping -- provide low level interface with AUDIO lib (extracted from alsa-json-gateway code)
* Copyright (C) 2015,2016,2017, Fulup Ar Foll fulup@iot.bzh
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SHAREHALLIB_H
#define SHAREHALLIB_H
#include <stdio.h>
#include <alsa/asoundlib.h>
#include "audio-interface.h"
typedef struct {
halCtlsEnumT control;
char* name;
int numid;
halGroupEnumT group;
int values;
int minval;
int maxval;
int step;
snd_ctl_elem_type_t type;
halAclEnumT acl;
} alsaHalCtlMapT;
// avoid compiler warning [Jose does not like typedef :) ]
typedef struct afb_service alsaHalServiceT;
// static value for HAL sound card API prefix
extern const char sndCardApiPrefix[];
typedef struct {
struct json_object* (*callback)(alsaHalCtlMapT *control, void* handle);
void* handle;
} alsaHalCbMapT;
typedef struct {
alsaHalCtlMapT alsa;
alsaHalCbMapT cb;
char* info;
} alsaHalMapT;
typedef const struct {
const char *name;
const char *info;
alsaHalMapT *ctls;
int (*initCB) (void);
} alsaHalSndCardT;
PUBLIC alsaHalSndCardT alsaHalSndCard;
#endif /* SHAREHALLIB_H */
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