fp@145: /******************************************************************************
fp@145:  *
fp@145:  *  $Id$
fp@145:  *
fp@197:  *  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH
fp@197:  *
fp@197:  *  This file is part of the IgH EtherCAT Master.
fp@197:  *
fp@197:  *  The IgH EtherCAT Master is free software; you can redistribute it
fp@197:  *  and/or modify it under the terms of the GNU General Public License
fp@197:  *  as published by the Free Software Foundation; version 2 of the License.
fp@197:  *
fp@197:  *  The IgH EtherCAT Master is distributed in the hope that it will be
fp@197:  *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
fp@197:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
fp@197:  *  GNU General Public License for more details.
fp@197:  *
fp@197:  *  You should have received a copy of the GNU General Public License
fp@197:  *  along with the IgH EtherCAT Master; if not, write to the Free Software
fp@197:  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
fp@197:  *
fp@145:  *****************************************************************************/
fp@145: 
fp@199: /**
fp@199:    \file
fp@199:    Ethernet-over-EtherCAT (EoE)
fp@199: */
fp@199: 
fp@199: /*****************************************************************************/
fp@199: 
fp@145: #include <linux/list.h>
fp@203: #include <linux/netdevice.h>
fp@145: 
fp@145: #include "../include/ecrt.h"
fp@145: #include "globals.h"
fp@145: #include "slave.h"
fp@145: #include "command.h"
fp@145: 
fp@145: /*****************************************************************************/
fp@145: 
fp@197: /**
fp@197:    State of an EoE object.
fp@197: */
fp@197: 
fp@145: typedef enum
fp@145: {
fp@197:     EC_EOE_IDLE,     /**< Idle. The next step ist to check for data. */
fp@197:     EC_EOE_CHECKING, /**< Checking frame was sent. */
fp@197:     EC_EOE_FETCHING  /**< There is new data. Fetching frame was sent. */
fp@145: }
fp@145: ec_eoe_state_t;
fp@145: 
fp@145: /*****************************************************************************/
fp@145: 
fp@197: /**
fp@197:    Ethernet-over-EtherCAT (EoE) Object.
fp@197:    The master creates one of these objects for each slave that supports the
fp@197:    EoE protocol.
fp@197: */
fp@197: 
fp@145: typedef struct
fp@145: {
fp@197:     struct list_head list; /**< list item */
fp@197:     ec_slave_t *slave; /**< pointer to the corresponding slave */
fp@197:     ec_eoe_state_t rx_state; /**< state of the state machine */
fp@203:     struct net_device *dev; /**< net_device for virtual ethernet device */
fp@210:     uint8_t opened; /**< net_device is opened */
fp@145: }
fp@145: ec_eoe_t;
fp@145: 
fp@145: /*****************************************************************************/
fp@145: 
fp@203: int ec_eoe_init(ec_eoe_t *, ec_slave_t *);
fp@145: void ec_eoe_clear(ec_eoe_t *);
fp@145: void ec_eoe_run(ec_eoe_t *);
fp@145: void ec_eoe_print(const ec_eoe_t *);
fp@145: 
fp@145: /*****************************************************************************/