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/*
* Copyright (C) 2018 "IoT.bzh"
* Author Jonathan Aillet <jonathan.aillet@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 _INTERNALS_HAL_ALSACORE_LINK_INCLUDE_
#define _INTERNALS_HAL_ALSACORE_LINK_INCLUDE_
#include <stdio.h>
#include <string.h>
#include <wrap-json.h>
#include <alsa/asoundlib.h>
#include <afb/afb-binding.h>
#include <ctl-config.h>
#include "4a-hal-utilities-alsa-data.h"
#include "4a-hal-utilities-data.h"
#define ALSACORE_API "alsacore"
#define ALSACORE_API_NAME_LENGTH strlen(ALSACORE_API)
#define ALSACORE_SUBSCRIBE_VERB "subscribe"
#define ALSACORE_UNSUBSCRIBE_VERB "unsubscribe"
#define ALSACORE_GETINFO_VERB "infoget"
#define ALSACORE_CTLGET_VERB "ctlget"
#define ALSACORE_CTLSET_VERB "ctlset"
#define ALSACORE_ADDCTL_VERB "addcustomctl"
#define ALSACORE_REMOVECTL_VERB "removecustomctl"
#define ALSACORE_CARD_CONTROL_EVENT_NAME "controls"
#define ALSACORE_EVENT_NAME_BEGIN (ALSACORE_API_NAME_LENGTH + 1)
#define ALSACORE_CARD_CONTROL_EVENT_NAME_PREFIX "hw:"
#define ALSACORE_CARD_CONTROL_EVENT_NAME_PREFIX_LENGTH strlen(ALSACORE_CARD_CONTROL_EVENT_NAME_PREFIX)
#define ALSACORE_CARD_CONTROL_EVENT_BEGIN (ALSACORE_EVENT_NAME_BEGIN + ALSACORE_CARD_CONTROL_EVENT_NAME_PREFIX_LENGTH)
// Enum for handled alsacore events
enum aslacoreEventType {
ALSACORE_EVENT_CARD_CONTROL_CHANGE = 0,
ALSACORE_UNRECOGNIZED_EVENT = 1
};
// Enum for the type of subscription/unsubscription to do with alsacore
enum AlsacoreSubscribeUnsubscribeType {
ALSACORE_SUBSCRIPTION = 0,
ALSACORE_UNSUBSCRIPTION = 1
};
// Alsa control types map from string function
snd_ctl_elem_type_t InternalHalMapsAlsaTypeToEnum(const char *label);
// Internals HAL alsacore events handler function
int InternalHalHandleAlsaCoreEvents(afb_api_t apiHandle,
const char *evtLabel,
json_object *eventJ,
struct HalData *currentHalData);
// Internals HAL alsacore calls funtions
int InternalHalGetCardInfo(afb_api_t apiHandle, json_object *requestJ, json_object **responseJ);
int InternalHalSubscribeToAlsacoreCardEvent(afb_api_t apiHandle, char *cardId);
int InternalHalUnsubscribeFromAlsacoreCardEvent(afb_api_t apiHandle, char *cardId);
int InternalHalUpdateAlsaCtlProperties(afb_api_t apiHandle, char *cardId, struct InternalHalAlsaCtl *currentAlsaCtl);
int InternalHalSetAlsaCtlValue(afb_api_t apiHandle, char *cardId, int ctlId, json_object *valuesJ);
int InternalHalCreateAlsaCtl(afb_api_t apiHandle, char *cardId, struct InternalHalAlsaCtl *alsaCtlToCreate);
int InternalHalDeleteAlsaCtl(afb_api_t apiHandle, char *cardId, struct InternalHalAlsaCtl *alsaCtlToDelete);
// Internals HAL alsacore controls request callback
void InternalHalActionOnAlsaCtl(afb_req_t request);
#endif /* _INTERNALS_HAL_ALSACORE_LINK_INCLUDE_ */
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