IgH EtherCAT Master: reg_request.h Source File

00001 /******************************************************************************
00002  *
00003  *  $Id$
00004  *
00005  *  Copyright (C) 2012  Florian Pose, Ingenieurgemeinschaft IgH
00006  *
00007  *  This file is part of the IgH EtherCAT Master.
00008  *
00009  *  The IgH EtherCAT Master is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License version 2, as
00011  *  published by the Free Software Foundation.
00012  *
00013  *  The IgH EtherCAT Master is distributed in the hope that it will be useful,
00014  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
00016  *  Public License for more details.
00017  *
00018  *  You should have received a copy of the GNU General Public License along
00019  *  with the IgH EtherCAT Master; if not, write to the Free Software
00020  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00021  *
00022  *  ---
00023  *
00024  *  The license mentioned above concerns the source code only. Using the
00025  *  EtherCAT technology and brand is only permitted in compliance with the
00026  *  industrial property and similar rights of Beckhoff Automation GmbH.
00027  *
00028  *****************************************************************************/
00029 
00035 /*****************************************************************************/
00036 
00037 #ifndef __EC_REG_REQUEST_H__
00038 #define __EC_REG_REQUEST_H__
00039 
00040 #include <linux/list.h>
00041 
00042 #include "globals.h"
00043 
00044 /*****************************************************************************/
00045 
00048 struct ec_reg_request {
00049     struct list_head list; 
00050     size_t mem_size; 
00051     uint8_t *data; 
00052     ec_direction_t dir; 
00054     uint16_t address; 
00055     size_t transfer_size; 
00056     ec_internal_request_state_t state; 
00057     uint16_t ring_position; 
00058 };
00059 
00060 /*****************************************************************************/
00061 
00062 int ec_reg_request_init(ec_reg_request_t *, size_t);
00063 void ec_reg_request_clear(ec_reg_request_t *);
00064 
00065 /*****************************************************************************/
00066 
00067 #endif