mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/** Node type: ethercat
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*
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* @file
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* @author Niklas Eiling <niklas.eiling@eonerc.rwth-aachen.de>
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2018, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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/**
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* @addtogroup ethercats WebSockets node type
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* @ingroup node
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* @{
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*/
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#pragma once
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#include <villas/node.h>
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#include <villas/pool.h>
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#include <villas/queue_signalled.h>
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#include <villas/common.h>
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#include <villas/io.h>
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#include <villas/config.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define DEFAULT_ETHERCAT_QUEUE_LENGTH (DEFAULT_QUEUE_LENGTH * 64)
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#define DEFAULT_ETHERCAT_SAMPLE_LENGTH DEFAULT_SAMPLE_LENGTH
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/* Forward declaration */
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struct lws;
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/** Internal data per ethercat node */
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struct ethercat {
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struct pool pool;
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struct queue_signalled queue; /**< For samples which are received from WebSockets */
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};
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/* Internal datastructures */
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/** @see node_type::type_start */
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int ethercat_type_start(struct super_node *sn);
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/** @see node_type::type_stop */
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int ethercat_type_stop();
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/** @see node_type::open */
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int ethercat_start(struct node *n);
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/** @see node_type::close */
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int ethercat_stop(struct node *n);
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/** @see node_type::close */
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int ethercat_destroy(struct node *n);
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/** @see node_type::read */
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int ethercat_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *release);
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/** @see node_type::write */
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int ethercat_write(struct node *n, struct sample *smps[], unsigned cnt, unsigned *release);
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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