Pdo configuration.
/******************************************************************************
*
* $Id$
*
* 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
Dummy EtherCAT master driver module.
*/
/*****************************************************************************/
#include <linux/module.h>
//#include <linux/kernel.h>
//#include <linux/init.h>
#include "../master/globals.h"
#include "../include/ecrt.h"
/*****************************************************************************/
int __init ec_init_module(void);
void __exit ec_cleanup_module(void);
char *ec_master_version_str = EC_MASTER_VERSION;
/*****************************************************************************/
/** \cond */
MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
MODULE_DESCRIPTION("DUMMY EtherCAT master driver module");
MODULE_LICENSE("GPL");
MODULE_VERSION(EC_MASTER_VERSION);
/** \endcond */
/*****************************************************************************/
#define DUMMY_SIZE (PAGE_SIZE * 8)
uint8_t dummy_data[DUMMY_SIZE];
off_t dummy_off = 0;
uint8_t *get_dummy_data(void)
{
off_t cur = dummy_off;
dummy_off += 64;
dummy_off %= DUMMY_SIZE;
return dummy_data + cur;
}
/*****************************************************************************/
/**
* Module initialization.
* Initializes \a ec_master_count masters.
* \return 0 on success, else < 0
*/
int __init ec_init_module(void)
{
EC_INFO("Master DUMMY driver %s\n", EC_MASTER_VERSION);
memset(dummy_data, 0x00, DUMMY_SIZE);
return 0;
}
/*****************************************************************************/
/**
Module cleanup.
Clears all master instances.
*/
void __exit ec_cleanup_module(void)
{
EC_INFO("Master DUMMY module cleaned up.\n");
}
/******************************************************************************
* Realtime interface
*****************************************************************************/
unsigned int ecrt_version_magic(void)
{
return ECRT_VERSION_MAGIC;
}
/*****************************************************************************/
ec_master_t *ecrt_request_master(unsigned int master_index
/**< master index */
)
{
EC_INFO("Requesting DUMMY master %u...\n", master_index);
return (void *) master_index + 1;
}
/*****************************************************************************/
/**
Releases a reserved EtherCAT master.
\ingroup RealtimeInterface
*/
void ecrt_release_master(ec_master_t *master /**< EtherCAT master */)
{
EC_INFO("Released DUMMY master %u.\n", (unsigned int) master - 1);
}
/*****************************************************************************/
/** \cond */
module_init(ec_init_module);
module_exit(ec_cleanup_module);
EXPORT_SYMBOL(ecrt_request_master);
EXPORT_SYMBOL(ecrt_release_master);
EXPORT_SYMBOL(ecrt_version_magic);
/** \endcond */
/*****************************************************************************/