author | Florian Pose <fp@igh-essen.com> |
Thu, 20 Sep 2007 12:58:35 +0000 | |
changeset 749 | c8f1395f818a |
parent 666 | 825ead3e0559 |
permissions | -rw-r--r-- |
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/****************************************************************************** |
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* |
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* $Id$ |
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* |
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* Copyright (C) 2006 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 |
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* and/or modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 of the |
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* License, or (at your option) any later version. |
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* |
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* The IgH EtherCAT Master is distributed in the hope that it will be |
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General 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 |
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* along 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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* The right to use EtherCAT Technology is granted and comes free of |
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* charge under condition of compatibility of product made by |
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* Licensee. People intending to distribute/sell products based on the |
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* code, have to sign an agreement to guarantee that products using |
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* software based on IgH EtherCAT master stay compatible with the actual |
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* EtherCAT specification (which are released themselves as an open |
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* standard) as the (only) precondition to have the right to use EtherCAT |
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* Technology, IP and trade marks. |
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* |
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*****************************************************************************/ |
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/** |
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\file |
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Dummy EtherCAT master driver module. |
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*/ |
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/*****************************************************************************/ |
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#include <linux/module.h> |
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//#include <linux/kernel.h> |
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//#include <linux/init.h> |
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#include "../master/globals.h" |
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#include "../include/ecrt.h" |
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/*****************************************************************************/ |
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int __init ec_init_module(void); |
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void __exit ec_cleanup_module(void); |
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char *ec_master_version_str = EC_MASTER_VERSION; |
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/*****************************************************************************/ |
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/** \cond */ |
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MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>"); |
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MODULE_DESCRIPTION("DUMMY EtherCAT master driver module"); |
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MODULE_LICENSE("GPL"); |
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MODULE_VERSION(EC_MASTER_VERSION); |
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/** \endcond */ |
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/*****************************************************************************/ |
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#define DUMMY_SIZE (PAGE_SIZE * 8) |
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uint8_t dummy_data[DUMMY_SIZE]; |
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off_t dummy_off = 0; |
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uint8_t *get_dummy_data(void) |
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{ |
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off_t cur = dummy_off; |
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dummy_off += 64; |
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dummy_off %= DUMMY_SIZE; |
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return dummy_data + cur; |
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} |
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/*****************************************************************************/ |
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/** |
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* Module initialization. |
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* Initializes \a ec_master_count masters. |
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* \return 0 on success, else < 0 |
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*/ |
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int __init ec_init_module(void) |
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{ |
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EC_INFO("Master DUMMY driver %s\n", EC_MASTER_VERSION); |
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memset(dummy_data, 0x00, DUMMY_SIZE); |
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return 0; |
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} |
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/*****************************************************************************/ |
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/** |
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Module cleanup. |
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Clears all master instances. |
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*/ |
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void __exit ec_cleanup_module(void) |
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{ |
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EC_INFO("Master DUMMY module cleaned up.\n"); |
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} |
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/****************************************************************************** |
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* Realtime interface |
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*****************************************************************************/ |
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unsigned int ecrt_version_magic(void) |
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{ |
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return ECRT_VERSION_MAGIC; |
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} |
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/*****************************************************************************/ |
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ec_master_t *ecrt_request_master(unsigned int master_index |
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/**< master index */ |
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) |
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{ |
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EC_INFO("Requesting DUMMY master %u...\n", master_index); |
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return (void *) master_index + 1; |
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} |
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/*****************************************************************************/ |
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/** |
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Releases a reserved EtherCAT master. |
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\ingroup RealtimeInterface |
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*/ |
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void ecrt_release_master(ec_master_t *master /**< EtherCAT master */) |
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{ |
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EC_INFO("Released DUMMY master %u.\n", (unsigned int) master - 1); |
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} |
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/*****************************************************************************/ |
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/** \cond */ |
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module_init(ec_init_module); |
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module_exit(ec_cleanup_module); |
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EXPORT_SYMBOL(ecrt_request_master); |
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EXPORT_SYMBOL(ecrt_release_master); |
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EXPORT_SYMBOL(ecrt_version_magic); |
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|
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/** \endcond */ |
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/*****************************************************************************/ |