Internal SDO requests now synchronized with external requests.
Internal SDO requests are managed by master FSM and can conflict with
external requests managed by slave FSM. The internal SDO requests
includes SDO requests created by an application and external request are
typical created by EtherCAT Tool for SDO upload/download or a directory
fetch initiated with ethercat sdos command. The conflict will cause a
FPWR from an external request to be overwritten by a FPWR from an
internal SDO request (or oppersite) in the same "train" of datagrams.
/******************************************************************************
*
* $Id$
*
* Copyright (C) 2006-2008 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 version 2, as
* published by the Free Software Foundation.
*
* 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 license mentioned above concerns the source code only. Using the
* EtherCAT technology and brand is only permitted in compliance with the
* industrial property and similar rights of Beckhoff Automation GmbH.
*
*****************************************************************************/
/** \file
*
* EtherCAT interface for EtherCAT device drivers.
*
* \defgroup DeviceInterface EtherCAT Device Interface
*
* Master interface for EtherCAT-capable network device drivers. Through the
* EtherCAT device interface, EtherCAT-capable network device drivers are able
* to connect their device(s) to the master, pass received frames and notify
* the master about status changes. The master on his part, can send his
* frames through connected devices.
*/
/*****************************************************************************/
#ifndef __ECDEV_H__
#define __ECDEV_H__
#include <linux/netdevice.h>
/*****************************************************************************/
struct ec_device;
typedef struct ec_device ec_device_t; /**< \see ec_device */
/** Device poll function type.
*/
typedef void (*ec_pollfunc_t)(struct net_device *);
/******************************************************************************
* Offering/withdrawal functions
*****************************************************************************/
ec_device_t *ecdev_offer(struct net_device *net_dev, ec_pollfunc_t poll,
struct module *module);
void ecdev_withdraw(ec_device_t *device);
/******************************************************************************
* Device methods
*****************************************************************************/
int ecdev_open(ec_device_t *device);
void ecdev_close(ec_device_t *device);
void ecdev_receive(ec_device_t *device, const void *data, size_t size);
void ecdev_set_link(ec_device_t *device, uint8_t state);
uint8_t ecdev_get_link(const ec_device_t *device);
/*****************************************************************************/
#endif