mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
/** Node type: comedi
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*
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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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#include <string.h>
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#include <villas/plugin.h>
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#include <villas/nodes/comedi.h>
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#include <villas/utils.h>
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#include <villas/io_format.h>
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int comedi_parse(struct node *n, json_t *cfg)
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{
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int ret;
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struct comedi *c = (struct comedi *) n->_vd;
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ret = json_unpack_ex(cfg, &err, 0, "{ s?: o, s?: o, s?: s }",
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"publish", &json_pub,
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"subscribe", &json_sub,
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"format", &format
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);
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if (ret)
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jerror(&err, "Failed to parse configuration of node %s", node_name(n));
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return 0;
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}
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char * comedi_print(struct node *n)
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{
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struct comedi *c = (struct comedi *) n->_vd;
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char *buf = NULL;
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return buf;
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}
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int comedi_start(struct node *n)
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{
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int ret;
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struct comedi *c = (struct comedi *) n->_vd;
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return 0;
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}
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int comedi_stop(struct node *n)
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{
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int ret;
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struct comedi *c = (struct comedi *) n->_vd;
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return 0;
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}
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int comedi_deinit()
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{
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return 0;
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}
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int comedi_read(struct node *n, struct sample *smps[], unsigned cnt)
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{
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struct comedi *c = (struct comedi *) n->_vd;
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return -1;
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}
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int comedi_write(struct node *n, struct sample *smps[], unsigned cnt)
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{
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int ret;
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struct comedi *c = (struct comedi *) n->_vd;
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return cnt;
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}
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int comedi_fd(struct node *n)
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{
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int ret;
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struct comedi *c = (struct comedi *) n->_vd;
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return fd;
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}
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static struct plugin p = {
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.name = "comedi",
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.description = "Comedi-compatible DAQ/ADC cards",
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.type = PLUGIN_TYPE_NODE,
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.node = {
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.vectorize = 0,
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.size = sizeof(struct comedi),
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.parse = comedi_parse,
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.print = comedi_print,
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.start = comedi_start,
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.stop = comedi_stop,
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.deinit = comedi_deinit,
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.read = comedi_read,
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.write = comedi_write,
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.fd = comedi_fd
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}
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};
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REGISTER_PLUGIN(&p)
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LIST_INIT_STATIC(&p.node.instances)
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