/** Node-type: CAN bus * * @file * @author Niklas Eiling * @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that 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. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ /** * @addtogroup can CAN bus Node Type * @ingroup node * @{ */ #pragma once #include #include /* Forward declarations */ struct vnode; union signal_data; struct can_signal { uint32_t id; int offset; int size; }; struct can { /* Settings */ char *interface_name; double *sample_rate; struct can_signal *in; struct can_signal *out; /* States */ int socket; union signal_data *sample_buf; size_t sample_buf_num; struct timespec start_time; }; /** @see node_type::init */ int can_init(struct vnode *n); /** @see node_type::destroy */ int can_destroy(struct vnode *n); /** @see node_type::parse */ int can_parse(struct vnode *n, json_t *json); /** @see node_type::print */ char * can_print(struct vnode *n); /** @see node_type::check */ int can_check(); /** @see node_type::prepare */ int can_prepare(); /** @see node_type::start */ int can_start(struct vnode *n); /** @see node_type::stop */ int can_stop(struct vnode *n); /** @see node_type::write */ int can_write(struct vnode *n, struct sample * const smps[], unsigned cnt); /** @see node_type::read */ int can_read(struct vnode *n, struct sample * const smps[], unsigned cnt); /** @see node_type::poll_fds */ int can_poll_fds(struct vnode *n, int fds[]); /** @} */