ethernet.h

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/******************************************************************************
 *
 *  $Id: ethernet.h 490 2006-08-02 12:25:25Z fp $
 *
 *  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.
 *
 *****************************************************************************/

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

#include <linux/list.h>
#include <linux/netdevice.h>

#include "../include/ecrt.h"
#include "globals.h"
#include "slave.h"
#include "datagram.h"

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

typedef struct
{
    struct list_head queue; 
    struct sk_buff *skb; 
}
ec_eoe_frame_t;

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

typedef struct ec_eoe ec_eoe_t; 
struct ec_eoe
{
    struct list_head list; 
    ec_slave_t *slave; 
    ec_datagram_t datagram; 
    void (*state)(ec_eoe_t *); 
    struct net_device *dev; 
    struct net_device_stats stats; 
    unsigned int opened; 
    struct sk_buff *rx_skb; 
    off_t rx_skb_offset; 
    size_t rx_skb_size; 
    uint8_t rx_expected_fragment; 
    struct list_head tx_queue; 
    unsigned int tx_queue_active; 
    unsigned int tx_queued_frames; 
    spinlock_t tx_queue_lock; 
    ec_eoe_frame_t *tx_frame; 
    uint8_t tx_frame_number; 
    uint8_t tx_fragment_number; 
    size_t tx_offset; 
};

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

int ec_eoe_init(ec_eoe_t *);
void ec_eoe_clear(ec_eoe_t *);
void ec_eoe_run(ec_eoe_t *);
unsigned int ec_eoe_active(const ec_eoe_t *);
void ec_eoe_print(const ec_eoe_t *);

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

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