master/pdo_entry.h
author Knud Baastrup <kba@deif.com>
Tue, 14 Apr 2015 13:12:24 -0400
changeset 2629 a2701af27fde
parent 1363 11c0b2caa253
permissions -rw-r--r--
Internal SDO requests now synchronized with external requests.
Internal SDO requests are managed by master FSM and can conflict with
external requests managed by slave FSM. The internal SDO requests
includes SDO requests created by an application and external request are
typical created by EtherCAT Tool for SDO upload/download or a directory
fetch initiated with ethercat sdos command. The conflict will cause a
FPWR from an external request to be overwritten by a FPWR from an
internal SDO request (or oppersite) in the same "train" of datagrams.
/******************************************************************************
 *
 *  $Id$
 *
 *  Copyright (C) 2006-2008  Florian Pose, Ingenieurgemeinschaft IgH
 *
 *  This file is part of the IgH EtherCAT Master.
 *
 *  The IgH EtherCAT Master is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License version 2, as
 *  published by the Free Software Foundation.
 *
 *  The IgH EtherCAT Master 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 the IgH EtherCAT Master; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  ---
 *
 *  The license mentioned above concerns the source code only. Using the
 *  EtherCAT technology and brand is only permitted in compliance with the
 *  industrial property and similar rights of Beckhoff Automation GmbH.
 *
 *****************************************************************************/

/**
   \file
   EtherCAT Process data object structure.
*/

/*****************************************************************************/

#ifndef __EC_PDO_ENTRY_H__
#define __EC_PDO_ENTRY_H__

#include <linux/list.h>

#include "globals.h"

/*****************************************************************************/

/** PDO entry description.
 */
typedef struct {
    struct list_head list; /**< list item */
    uint16_t index; /**< PDO entry index */
    uint8_t subindex; /**< PDO entry subindex */
    char *name; /**< entry name */
    uint8_t bit_length; /**< entry length in bit */
} ec_pdo_entry_t;

/*****************************************************************************/

void ec_pdo_entry_init(ec_pdo_entry_t *);
int ec_pdo_entry_init_copy(ec_pdo_entry_t *, const ec_pdo_entry_t *);
void ec_pdo_entry_clear(ec_pdo_entry_t *);
int ec_pdo_entry_set_name(ec_pdo_entry_t *, const char *);
int ec_pdo_entry_equal(const ec_pdo_entry_t *, const ec_pdo_entry_t *);

/*****************************************************************************/

#endif