diff -r 60b2aad9d40b -r 1cc865ba17c2 master/fsm_change.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/master/fsm_change.h Tue Nov 07 12:13:30 2006 +0000 @@ -0,0 +1,95 @@ +/****************************************************************************** + * + * $Id$ + * + * 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 state change FSM. +*/ + +/*****************************************************************************/ + +#ifndef __EC_FSM_CHANGE__ +#define __EC_FSM_CHANGE__ + +#include "globals.h" +#include "../include/ecrt.h" +#include "datagram.h" +#include "slave.h" + +/*****************************************************************************/ + +/** + Mode of the change state machine. +*/ + +typedef enum { + EC_FSM_CHANGE_MODE_FULL, /**< full state change */ + EC_FSM_CHANGE_MODE_ACK_ONLY /**< only state acknowledgement */ +} +ec_fsm_change_mode_t; + +/*****************************************************************************/ + +typedef struct ec_fsm_change ec_fsm_change_t; /**< \see ec_fsm_change */ + +/** + EtherCAT state change FSM. +*/ + +struct ec_fsm_change +{ + ec_slave_t *slave; /**< slave the FSM runs on */ + ec_datagram_t *datagram; /**< datagram used in the state machine */ + + void (*state)(ec_fsm_change_t *); /**< slave state change state function */ + ec_fsm_change_mode_t mode; /**< full state change, or ack only. */ + ec_slave_state_t requested_state; /**< input: state */ + ec_slave_state_t old_state; /**< prior slave state */ + unsigned long jiffies_start; /**< change timer */ + uint8_t take_time; /**< take sending timestamp */ +}; + +/*****************************************************************************/ + +void ec_fsm_change_init(ec_fsm_change_t *, ec_datagram_t *); +void ec_fsm_change_clear(ec_fsm_change_t *); + +void ec_fsm_change_start(ec_fsm_change_t *, ec_slave_t *, ec_slave_state_t); +void ec_fsm_change_ack(ec_fsm_change_t *, ec_slave_t *); + +int ec_fsm_change_exec(ec_fsm_change_t *); +int ec_fsm_change_success(ec_fsm_change_t *); + +/*****************************************************************************/ + +#endif