fp@1744: /******************************************************************************
fp@1744:  *
fp@1744:  *  $Id$
fp@1744:  *
fp@1744:  *  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH
fp@1744:  *
fp@1744:  *  This file is part of the IgH EtherCAT Master.
fp@1744:  *
fp@1744:  *  The IgH EtherCAT Master is free software; you can redistribute it
fp@1744:  *  and/or modify it under the terms of the GNU General Public License
fp@1744:  *  as published by the Free Software Foundation; either version 2 of the
fp@1744:  *  License, or (at your option) any later version.
fp@1744:  *
fp@1744:  *  The IgH EtherCAT Master is distributed in the hope that it will be
fp@1744:  *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
fp@1744:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
fp@1744:  *  GNU General Public License for more details.
fp@1744:  *
fp@1744:  *  You should have received a copy of the GNU General Public License
fp@1744:  *  along with the IgH EtherCAT Master; if not, write to the Free Software
fp@1744:  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
fp@1744:  *
fp@1744:  *  The right to use EtherCAT Technology is granted and comes free of
fp@1744:  *  charge under condition of compatibility of product made by
fp@1744:  *  Licensee. People intending to distribute/sell products based on the
fp@1744:  *  code, have to sign an agreement to guarantee that products using
fp@1744:  *  software based on IgH EtherCAT master stay compatible with the actual
fp@1744:  *  EtherCAT specification (which are released themselves as an open
fp@1744:  *  standard) as the (only) precondition to have the right to use EtherCAT
fp@1744:  *  Technology, IP and trade marks.
fp@1744:  *
fp@1744:  *****************************************************************************/
fp@1744: 
fp@1744: /**
fp@1744:    \file
fp@1744:    Dummy EtherCAT master driver module.
fp@1744: */
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: #include <linux/module.h>
fp@1744: //#include <linux/kernel.h>
fp@1744: //#include <linux/init.h>
fp@1744: 
fp@1744: #include "../master/globals.h"
fp@1744: #include "../include/ecrt.h"
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: int __init ec_init_module(void);
fp@1744: void __exit ec_cleanup_module(void);
fp@1744: 
fp@1744: char *ec_master_version_str = EC_MASTER_VERSION;
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: /** \cond */
fp@1744: 
fp@1744: MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
fp@1744: MODULE_DESCRIPTION("DUMMY EtherCAT master driver module");
fp@1744: MODULE_LICENSE("GPL");
fp@1744: MODULE_VERSION(EC_MASTER_VERSION);
fp@1744: 
fp@1744: /** \endcond */
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: #define DUMMY_SIZE (PAGE_SIZE * 8)
fp@1744: 
fp@1744: uint8_t dummy_data[DUMMY_SIZE];
fp@1744: off_t dummy_off = 0;
fp@1744: 
fp@1744: uint8_t *get_dummy_data(void)
fp@1744: {
fp@1744:     off_t cur = dummy_off;
fp@1744: 
fp@1744:     dummy_off += 64;
fp@1744:     dummy_off %= DUMMY_SIZE;
fp@1744: 
fp@1744:     return dummy_data + cur;
fp@1744: }
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: /**
fp@1744:  * Module initialization.
fp@1744:  * Initializes \a ec_master_count masters.
fp@1744:  * \return 0 on success, else < 0
fp@1744:  */
fp@1744: 
fp@1744: int __init ec_init_module(void)
fp@1744: {
fp@1744:     EC_INFO("Master DUMMY driver %s\n", EC_MASTER_VERSION);
fp@1744: 
fp@1744:     memset(dummy_data, 0x00, DUMMY_SIZE);
fp@1744: 
fp@1744:     return 0;
fp@1744: }
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: /**
fp@1744:    Module cleanup.
fp@1744:    Clears all master instances.
fp@1744: */
fp@1744: 
fp@1744: void __exit ec_cleanup_module(void)
fp@1744: {
fp@1744:     EC_INFO("Master DUMMY module cleaned up.\n");
fp@1744: }
fp@1744: 
fp@1744: /******************************************************************************
fp@1744:  *  Realtime interface
fp@1744:  *****************************************************************************/
fp@1744: 
fp@1744: unsigned int ecrt_version_magic(void)
fp@1744: {
fp@1744:     return ECRT_VERSION_MAGIC;
fp@1744: }
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: ec_master_t *ecrt_request_master(unsigned int master_index
fp@1744:                                  /**< master index */
fp@1744:                                  )
fp@1744: {
fp@1744:     EC_INFO("Requesting DUMMY master %u...\n", master_index);
fp@1744:     return (void *) master_index + 1;
fp@1744: }
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: /**
fp@1744:    Releases a reserved EtherCAT master.
fp@1744:    \ingroup RealtimeInterface
fp@1744: */
fp@1744: 
fp@1744: void ecrt_release_master(ec_master_t *master /**< EtherCAT master */)
fp@1744: {
fp@1744:     EC_INFO("Released DUMMY master %u.\n", (unsigned int) master - 1);
fp@1744: }
fp@1744: 
fp@1744: /*****************************************************************************/
fp@1744: 
fp@1744: /** \cond */
fp@1744: 
fp@1744: module_init(ec_init_module);
fp@1744: module_exit(ec_cleanup_module);
fp@1744: 
fp@1744: EXPORT_SYMBOL(ecrt_request_master);
fp@1744: EXPORT_SYMBOL(ecrt_release_master);
fp@1744: EXPORT_SYMBOL(ecrt_version_magic);
fp@1744: 
fp@1744: /** \endcond */
fp@1744: 
fp@1744: /*****************************************************************************/