Improved checking of EEPROM data while reading.
/******************************************************************************
*
* $Id$
*
* Copyright (C) 2006 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
* as published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* 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 right to use EtherCAT Technology is granted and comes free of
* charge under condition of compatibility of product made by
* Licensee. People intending to distribute/sell products based on the
* code, have to sign an agreement to guarantee that products using
* software based on IgH EtherCAT master stay compatible with the actual
* EtherCAT specification (which are released themselves as an open
* standard) as the (only) precondition to have the right to use EtherCAT
* Technology, IP and trade marks.
*
*****************************************************************************/
/**
\file
EtherCAT domain structure.
*/
/*****************************************************************************/
#ifndef _EC_DOMAIN_H_
#define _EC_DOMAIN_H_
#include <linux/list.h>
#include <linux/kobject.h>
#include "globals.h"
#include "datagram.h"
#include "master.h"
/*****************************************************************************/
/**
EtherCAT domain.
Handles the process data and the therefore needed datagrams of a certain
group of slaves.
*/
struct ec_domain
{
struct kobject kobj; /**< kobject */
struct list_head list; /**< list item */
unsigned int index; /**< domain index (just a number) */
ec_master_t *master; /**< EtherCAT master owning the domain */
size_t data_size; /**< size of the process data */
struct list_head datagrams; /**< process data datagrams */
uint32_t base_address; /**< logical offset address of the process data */
unsigned int response_count; /**< number of responding slaves */
unsigned int state; /**< domain error state */
struct list_head data_regs; /**< PDO data registrations */
unsigned int working_counter_changes; /**< working counter changes
since last notification */
unsigned long notify_jiffies; /**< time of last notification */
};
/*****************************************************************************/
int ec_domain_init(ec_domain_t *, ec_master_t *, unsigned int);
void ec_domain_destroy(ec_domain_t *);
int ec_domain_alloc(ec_domain_t *, uint32_t);
/*****************************************************************************/
#endif