/******************************************************************************
 *
 *  $Id$
 *
 *  Copyright (C) 2006  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
 *  as published by the Free Software Foundation; either version 2 of the
 *  License, or (at your option) any later version.
 *
 *  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 right to use EtherCAT Technology is granted and comes free of
 *  charge under condition of compatibility of product made by
 *  Licensee. People intending to distribute/sell products based on the
 *  code, have to sign an agreement to guarantee that products using
 *  software based on IgH EtherCAT master stay compatible with the actual
 *  EtherCAT specification (which are released themselves as an open
 *  standard) as the (only) precondition to have the right to use EtherCAT
 *  Technology, IP and trade marks.
 *
 *****************************************************************************/

/** \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 _ETHERCAT_DEVICE_H_
#define _ETHERCAT_DEVICE_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

int ecdev_offer(struct net_device *net_dev, ec_pollfunc_t poll,
        struct module *module, ec_device_t **);
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(ec_device_t *device);

/*****************************************************************************/

#endif