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1 /****************************************************************************** |
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2 * |
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3 * $Id$ |
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4 * |
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5 * Copyright (C) 2006-2012 Florian Pose, Ingenieurgemeinschaft IgH |
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6 * |
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7 * This file is part of the IgH EtherCAT Master. |
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8 * |
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9 * The IgH EtherCAT Master is free software; you can redistribute it and/or |
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10 * modify it under the terms of the GNU General Public License version 2, as |
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11 * published by the Free Software Foundation. |
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12 * |
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13 * The IgH EtherCAT Master is distributed in the hope that it will be useful, |
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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16 * Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU General Public License along |
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19 * with the IgH EtherCAT Master; if not, write to the Free Software |
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20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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21 * |
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22 * --- |
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23 * |
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24 * The license mentioned above concerns the source code only. Using the |
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25 * EtherCAT technology and brand is only permitted in compliance with the |
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26 * industrial property and similar rights of Beckhoff Automation GmbH. |
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27 * |
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28 *****************************************************************************/ |
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29 |
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30 /** |
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31 \file |
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32 EtherCAT datagram pair structure. |
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33 */ |
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34 |
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35 /*****************************************************************************/ |
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36 |
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37 #ifndef __EC_DATAGRAM_PAIR_H__ |
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38 #define __EC_DATAGRAM_PAIR_H__ |
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39 |
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40 #include <linux/list.h> |
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41 |
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42 #include "globals.h" |
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43 #include "datagram.h" |
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44 |
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45 /*****************************************************************************/ |
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46 |
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47 /** Domain datagram pair. |
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48 */ |
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49 typedef struct { |
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50 struct list_head list; /**< List header. */ |
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51 ec_domain_t *domain; /**< Parent domain. */ |
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52 ec_datagram_t datagrams[EC_MAX_NUM_DEVICES]; /**< Datagrams. */ |
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53 #if EC_MAX_NUM_DEVICES > 1 |
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54 uint8_t *send_buffer; |
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55 #endif |
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56 unsigned int expected_working_counter; /**< Expectord working conter. */ |
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57 } ec_datagram_pair_t; |
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58 |
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59 /*****************************************************************************/ |
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60 |
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61 int ec_datagram_pair_init(ec_datagram_pair_t *, ec_domain_t *, uint32_t, |
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62 uint8_t *, size_t, const unsigned int []); |
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63 void ec_datagram_pair_clear(ec_datagram_pair_t *); |
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64 |
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65 uint16_t ec_datagram_pair_process(ec_datagram_pair_t *, uint16_t[]); |
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66 |
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67 /*****************************************************************************/ |
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68 |
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69 #endif |