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71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/*****************************************************************************
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*
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* Copyright (C) 2012 Florian Pose, Ingenieurgemeinschaft IgH
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*
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* This file is part of the IgH EtherCAT Master.
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*
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* The IgH EtherCAT Master is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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* The IgH EtherCAT Master 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 GNU General
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* 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 along
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* with the IgH EtherCAT Master; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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****************************************************************************/
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/**
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\file
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EtherCAT CoE emergency ring buffer structure.
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*/
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/****************************************************************************/
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#ifndef __EC_COE_EMERG_RING_H__
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#define __EC_COE_EMERG_RING_H__
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#include "globals.h"
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/****************************************************************************/
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/** EtherCAT CoE emergency message record.
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*/
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typedef struct {
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u8 data[EC_COE_EMERGENCY_MSG_SIZE]; /**< Message data. */
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} ec_coe_emerg_msg_t;
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/****************************************************************************/
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/** EtherCAT CoE emergency ring buffer.
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*/
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typedef struct {
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ec_slave_config_t *sc; /**< Slave configuration owning the ring. */
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ec_coe_emerg_msg_t *msgs; /**< Message ring. */
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size_t size; /**< Ring size. */
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unsigned int read_index; /**< Read index. */
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unsigned int write_index; /**< Write index. */
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unsigned int overruns; /**< Number of overruns since last reset. */
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} ec_coe_emerg_ring_t;
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/****************************************************************************/
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void ec_coe_emerg_ring_init(ec_coe_emerg_ring_t *, ec_slave_config_t *);
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void ec_coe_emerg_ring_clear(ec_coe_emerg_ring_t *);
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int ec_coe_emerg_ring_size(ec_coe_emerg_ring_t *, size_t);
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void ec_coe_emerg_ring_push(ec_coe_emerg_ring_t *, const u8 *);
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int ec_coe_emerg_ring_pop(ec_coe_emerg_ring_t *, u8 *);
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int ec_coe_emerg_ring_clear_ring(ec_coe_emerg_ring_t *);
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int ec_coe_emerg_ring_overruns(const ec_coe_emerg_ring_t *);
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/****************************************************************************/
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#endif
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