author | Florian Pose <fp@igh-essen.com> |
Wed, 02 Aug 2006 23:16:10 +0000 | |
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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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EtherCAT domain structure. |
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*/ |
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/*****************************************************************************/ |
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#ifndef _EC_DOMAIN_H_ |
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#define _EC_DOMAIN_H_ |
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#include <linux/list.h> |
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#include <linux/kobject.h> |
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#include "globals.h" |
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#include "slave.h" |
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#include "datagram.h" |
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/*****************************************************************************/ |
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/** |
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Data field registration type. |
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*/ |
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typedef struct |
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{ |
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struct list_head list; /**< list item */ |
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ec_slave_t *slave; /**< slave */ |
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const ec_sync_t *sync; /**< sync manager */ |
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uint32_t field_offset; /**< data field offset */ |
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void **data_ptr; /**< pointer to process data pointer(s) */ |
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} |
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ec_field_reg_t; |
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/*****************************************************************************/ |
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/** |
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EtherCAT domain. |
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Handles the process data and the therefore needed datagrams of a certain |
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group of slaves. |
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*/ |
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struct ec_domain |
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{ |
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struct kobject kobj; /**< kobject */ |
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struct list_head list; /**< list item */ |
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unsigned int index; /**< domain index (just a number) */ |
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ec_master_t *master; /**< EtherCAT master owning the domain */ |
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size_t data_size; /**< size of the process data */ |
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struct list_head datagrams; /**< process data datagrams */ |
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uint32_t base_address; /**< logical offset address of the process data */ |
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unsigned int response_count; /**< number of responding slaves */ |
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struct list_head field_regs; /**< data field registrations */ |
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}; |
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/*****************************************************************************/ |
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int ec_domain_init(ec_domain_t *, ec_master_t *, unsigned int); |
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void ec_domain_clear(struct kobject *); |
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int ec_domain_alloc(ec_domain_t *, uint32_t); |
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/*****************************************************************************/ |
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#endif |