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

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 *

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 *  $Id$

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 *

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 *  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH

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 *

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 *  This file is part of the IgH EtherCAT Master.

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 *

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 *  The IgH EtherCAT Master is free software; you can redistribute it

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 *  and/or modify it under the terms of the GNU General Public License

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 *  as published by the Free Software Foundation; either version 2 of the

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 *  License, or (at your option) any later version.

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 *

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 *  The IgH EtherCAT Master is distributed in the hope that it will be

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 *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of

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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 *  GNU General Public License for more details.

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 *

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 *  You should have received a copy of the GNU General Public License

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 *  along with the IgH EtherCAT Master; if not, write to the Free Software

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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

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 *

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 *  The right to use EtherCAT Technology is granted and comes free of

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 *  charge under condition of compatibility of product made by

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 *  Licensee. People intending to distribute/sell products based on the

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 *  code, have to sign an agreement to guarantee that products using

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 *  software based on IgH EtherCAT master stay compatible with the actual

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 *  EtherCAT specification (which are released themselves as an open

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 *  standard) as the (only) precondition to have the right to use EtherCAT

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 *  Technology, IP and trade marks.

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 *

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

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/**

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   \file

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   EtherCAT sync manager.

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*/

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

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#ifndef _EC_SYNC_H_

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#define _EC_SYNC_H_

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#include <linux/list.h>

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#include "../include/ecrt.h"

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#include "globals.h"

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

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/** size of a sync manager configuration page */

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#define EC_SYNC_SIZE 8

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

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/**

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 * Sync manager.

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 */

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typedef struct

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{

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    ec_slave_t *slave; /**< slave, the sync manager belongs to */

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    unsigned int index; /**< sync manager index */

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    uint16_t physical_start_address; /**< physical start address */

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    uint16_t length; /**< data length in bytes */

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    uint8_t control_register; /**< control register value */

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    uint8_t enable; /**< enable bit */

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    uint16_t est_length; /**< used to calculate the length via PDO ranges */

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    struct list_head pdos; /**< list of mapped PDOs */

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    unsigned int alt_mapping; /**< alternative mapping configured */

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}

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ec_sync_t;

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

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void ec_sync_init(ec_sync_t *, ec_slave_t *, unsigned int);

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void ec_sync_clear(ec_sync_t *);

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uint16_t ec_sync_size(const ec_sync_t *);

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void ec_sync_config(const ec_sync_t *, uint8_t *);

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int ec_sync_add_pdo(ec_sync_t *, const ec_pdo_t *);

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void ec_sync_clear_pdos(ec_sync_t *);

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

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#endif