Take ref clock address from dc_ref_clock pointer.
/******************************************************************************
*
* $Id$
*
* Copyright (C) 2006-2008 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 version 2, as
* published by the Free Software Foundation.
*
* 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 license mentioned above concerns the source code only. Using the
* EtherCAT technology and brand is only permitted in compliance with the
* industrial property and similar rights of Beckhoff Automation GmbH.
*
*****************************************************************************/
/**
\file
EtherCAT master state machine.
*/
/*****************************************************************************/
#ifndef __EC_FSM_MASTER_H__
#define __EC_FSM_MASTER_H__
#include "globals.h"
#include "datagram.h"
#include "foe_request.h"
#include "sdo_request.h"
#include "fsm_slave_config.h"
#include "fsm_slave_scan.h"
#include "fsm_pdo.h"
#include "fsm_foe.h"
/*****************************************************************************/
/** SII write request.
*/
typedef struct {
struct list_head list; /**< List head. */
ec_slave_t *slave; /**< EtherCAT slave. */
uint16_t offset; /**< SII word offset. */
size_t nwords; /**< Number of words. */
const uint16_t *words; /**< Pointer to the data words. */
ec_internal_request_state_t state; /**< State of the request. */
} ec_sii_write_request_t;
/*****************************************************************************/
/** Register request.
*/
typedef struct {
struct list_head list; /**< List head. */
ec_slave_t *slave; /**< EtherCAT slave. */
ec_direction_t dir; /**< Direction. */
uint16_t offset; /**< Register address. */
size_t length; /**< Number of bytes. */
uint8_t *data; /**< Data to write / memory for read data. */
ec_internal_request_state_t state; /**< State of the request. */
} ec_reg_request_t;
/*****************************************************************************/
/** Slave/SDO request record for master's SDO request list.
*/
typedef struct {
struct list_head list; /**< List element. */
ec_slave_t *slave; /**< Slave. */
ec_sdo_request_t req; /**< SDO request. */
} ec_master_sdo_request_t;
/*****************************************************************************/
/** FoE write request.
*/
typedef struct {
struct list_head list; /**< List head. */
ec_slave_t *slave; /**< EtherCAT slave. */
ec_foe_request_t req; /**< FoE request. */
} ec_master_foe_request_t;
/*****************************************************************************/
typedef struct ec_fsm_master ec_fsm_master_t; /**< \see ec_fsm_master */
/** Finite state machine of an EtherCAT master.
*/
struct ec_fsm_master {
ec_master_t *master; /**< master the FSM runs on */
ec_datagram_t *datagram; /**< datagram used in the state machine */
unsigned int retries; /**< retries on datagram timeout. */
void (*state)(ec_fsm_master_t *); /**< master state function */
int idle; /**< state machine is in idle phase */
unsigned long scan_jiffies; /**< beginning of slave scanning */
uint8_t link_state; /**< Last main device link state. */
unsigned int slaves_responding; /**< number of responding slaves */
unsigned int topology_change_pending; /**< bus topology changed */
ec_slave_state_t slave_states; /**< states of responding slaves */
ec_slave_t *slave; /**< current slave */
ec_sii_write_request_t *sii_request; /**< SII write request */
off_t sii_index; /**< index to SII write request data */
ec_sdo_request_t *sdo_request; /**< SDO request to process. */
ec_reg_request_t *reg_request; /**< Register request to process. */
ec_foe_request_t *foe_request; /**< FoE request to process. */
off_t foe_index; /**< index to FoE write request data */
ec_fsm_coe_t fsm_coe; /**< CoE state machine */
ec_fsm_pdo_t fsm_pdo; /**< PDO configuration state machine. */
ec_fsm_change_t fsm_change; /**< State change state machine */
ec_fsm_slave_config_t fsm_slave_config; /**< slave state machine */
ec_fsm_slave_scan_t fsm_slave_scan; /**< slave state machine */
ec_fsm_sii_t fsm_sii; /**< SII state machine */
ec_fsm_foe_t fsm_foe; /**< FoE state machine */
};
/*****************************************************************************/
void ec_fsm_master_init(ec_fsm_master_t *, ec_master_t *, ec_datagram_t *);
void ec_fsm_master_clear(ec_fsm_master_t *);
void ec_fsm_master_exec(ec_fsm_master_t *);
int ec_fsm_master_idle(const ec_fsm_master_t *);
/*****************************************************************************/
#endif