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/*
* Support for Intel Camera Imaging ISP subsystem.
* Copyright (c) 2015, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#ifndef __EVENT_FIFO_PUBLIC_H
#define __EVENT_FIFO_PUBLIC_H
#include <type_support.h>
#include "system_types.h"
/*! Blocking read from an event source EVENT[ID]
\param ID[in] EVENT identifier
\return none, dequeue(event_queue[ID])
*/
STORAGE_CLASS_EVENT_H void event_wait_for(
const event_ID_t ID);
/*! Conditional blocking wait for an event source EVENT[ID]
\param ID[in] EVENT identifier
\param cnd[in] predicate
\return none, if(cnd) dequeue(event_queue[ID])
*/
STORAGE_CLASS_EVENT_H void cnd_event_wait_for(
const event_ID_t ID,
const bool cnd);
/*! Blocking read from an event source EVENT[ID]
\param ID[in] EVENT identifier
\return dequeue(event_queue[ID])
*/
STORAGE_CLASS_EVENT_H hrt_data event_receive_token(
const event_ID_t ID);
/*! Blocking write to an event sink EVENT[ID]
\param ID[in] EVENT identifier
\param token[in] token to be written on the event
\return none, enqueue(event_queue[ID])
*/
STORAGE_CLASS_EVENT_H void event_send_token(
const event_ID_t ID,
const hrt_data token);
/*! Query an event source EVENT[ID]
\param ID[in] EVENT identifier
\return !isempty(event_queue[ID])
*/
STORAGE_CLASS_EVENT_H bool is_event_pending(
const event_ID_t ID);
/*! Query an event sink EVENT[ID]
\param ID[in] EVENT identifier
\return !isfull(event_queue[ID])
*/
STORAGE_CLASS_EVENT_H bool can_event_send_token(
const event_ID_t ID);
#endif /* __EVENT_FIFO_PUBLIC_H */
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