etherlabmaster: master/fsm_change.c@399ef727bf62 (annotated)

434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	1	/******************************************************************************
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	2	*
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	3	* $Id$
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	4	*
1685 399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	5	* Copyright (C) 2006-2008 Florian Pose, Ingenieurgemeinschaft IgH
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	6	*
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	7	* This file is part of the IgH EtherCAT Master.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	8	*
1685 399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	9	* The IgH EtherCAT Master is free software; you can redistribute it and/or
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	10	* modify it under the terms of the GNU General Public License version 2, as
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	11	* published by the Free Software Foundation.
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	12	*
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	13	* The IgH EtherCAT Master is distributed in the hope that it will be useful,
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	16	* Public License for more details.
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	17	*
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	18	* You should have received a copy of the GNU General Public License along
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	19	* with the IgH EtherCAT Master; if not, write to the Free Software
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	20	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	21	*
1685 399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	22	* Using the EtherCAT technology and brand is permitted in compliance with
399ef727bf62 Changed licence headers to avoid conflicts with the GPL; restricted licence to GPLv2 only. Florian Pose <fp@igh-essen.com> parents: 986 diff changeset	23	* the industrial property and similar rights of Beckhoff Automation GmbH.
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	24	*
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	25	*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	26
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	27	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	28	\file
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	29	EtherCAT state change FSM.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	30	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	31
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	32	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	33
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	34	#include "globals.h"
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	35	#include "master.h"
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	36	#include "fsm_change.h"
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	37
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	38	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	39
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	40	void ec_fsm_change_state_start(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	41	void ec_fsm_change_state_check(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	42	void ec_fsm_change_state_status(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	43	void ec_fsm_change_state_code(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	44	void ec_fsm_change_state_start_ack(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	45	void ec_fsm_change_state_ack(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	46	void ec_fsm_change_state_check_ack(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	47	void ec_fsm_change_state_end(ec_fsm_change_t *);
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	48	void ec_fsm_change_state_error(ec_fsm_change_t *);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	49
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	50	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	51
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	52	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	53	Constructor.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	54	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	55
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	56	void ec_fsm_change_init(ec_fsm_change_t fsm, /< finite state machine /
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	57	ec_datagram_t datagram /< datagram /
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	58	)
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	59	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	60	fsm->state = NULL;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	61	fsm->datagram = datagram;
738 880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	62	fsm->spontaneous_change = 0;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	63	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	64
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	65	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	66
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	67	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	68	Destructor.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	69	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	70
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	71	void ec_fsm_change_clear(ec_fsm_change_t fsm /< finite state machine /)
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	72	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	73	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	74
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	75	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	76
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	77	/**
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	78	Starts the change state machine.
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	79	*/
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	80
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	81	void ec_fsm_change_start(ec_fsm_change_t fsm, /< finite state machine /
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	82	ec_slave_t slave, /< EtherCAT slave /
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	83	ec_slave_state_t state /*< requested state /
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	84	)
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	85	{
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	86	fsm->mode = EC_FSM_CHANGE_MODE_FULL;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	87	fsm->slave = slave;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	88	fsm->requested_state = state;
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	89	fsm->state = ec_fsm_change_state_start;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	90	}
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	91
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	92	/*****************************************************************************/
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	93
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	94	/**
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	95	Starts the change state machine to only acknowlegde a slave's state.
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	96	*/
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	97
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	98	void ec_fsm_change_ack(ec_fsm_change_t fsm, /< finite state machine /
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	99	ec_slave_t slave /< EtherCAT slave /
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	100	)
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	101	{
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	102	fsm->mode = EC_FSM_CHANGE_MODE_ACK_ONLY;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	103	fsm->slave = slave;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	104	fsm->requested_state = EC_SLAVE_STATE_UNKNOWN;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	105	fsm->state = ec_fsm_change_state_start_ack;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	106	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	107
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	108	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	109
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	110	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	111	Executes the current state of the state machine.
435 779a18d12e6c Removed state machine running() methods. Florian Pose <fp@igh-essen.com> parents: 434 diff changeset	112	\return false, if the state machine has terminated
779a18d12e6c Removed state machine running() methods. Florian Pose <fp@igh-essen.com> parents: 434 diff changeset	113	*/
779a18d12e6c Removed state machine running() methods. Florian Pose <fp@igh-essen.com> parents: 434 diff changeset	114
779a18d12e6c Removed state machine running() methods. Florian Pose <fp@igh-essen.com> parents: 434 diff changeset	115	int ec_fsm_change_exec(ec_fsm_change_t fsm /< finite state machine /)
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	116	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	117	fsm->state(fsm);
435 779a18d12e6c Removed state machine running() methods. Florian Pose <fp@igh-essen.com> parents: 434 diff changeset	118
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	119	return fsm->state != ec_fsm_change_state_end
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	120	&& fsm->state != ec_fsm_change_state_error;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	121	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	122
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	123	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	124
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	125	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	126	Returns, if the state machine terminated with success.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	127	\return non-zero if successful.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	128	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	129
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	130	int ec_fsm_change_success(ec_fsm_change_t fsm /< Finite state machine /)
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	131	{
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	132	return fsm->state == ec_fsm_change_state_end;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	133	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	134
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	135	/******************************************************************************
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	136	* state change state machine
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	137	*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	138
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	139	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	140	Change state: START.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	141	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	142
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	143	void ec_fsm_change_state_start(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	144	/*< finite state machine /)
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	145	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	146	ec_datagram_t *datagram = fsm->datagram;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	147	ec_slave_t *slave = fsm->slave;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	148
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	149	fsm->take_time = 1;
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	150	fsm->old_state = fsm->slave->current_state;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	151
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	152	// write new state to slave
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	153	ec_datagram_fpwr(datagram, slave->station_address, 0x0120, 2);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	154	EC_WRITE_U16(datagram->data, fsm->requested_state);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	155	fsm->retries = EC_FSM_RETRIES;
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	156	fsm->state = ec_fsm_change_state_check;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	157	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	158
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	159	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	160
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	161	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	162	Change state: CHECK.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	163	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	164
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	165	void ec_fsm_change_state_check(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	166	/*< finite state machine /)
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	167	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	168	ec_datagram_t *datagram = fsm->datagram;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	169	ec_slave_t *slave = fsm->slave;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	170
637 d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	171	if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--)
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	172	return;
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	173
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	174	if (datagram->state != EC_DATAGRAM_RECEIVED) {
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	175	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	176	EC_ERR("Failed to receive state datagram from slave %u"
a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	177	" (datagram state %u)!\n",
594 07dd2a7df66e Added datagram state to "Failed to receive..." messages. Florian Pose <fp@igh-essen.com> parents: 505 diff changeset	178	fsm->slave->ring_position, datagram->state);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	179	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	180	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	181
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	182	if (fsm->take_time) {
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	183	fsm->take_time = 0;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	184	fsm->jiffies_start = datagram->jiffies_sent;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	185	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	186
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	187	if (datagram->working_counter == 0) {
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	188	if (datagram->jiffies_received - fsm->jiffies_start >= 3 * HZ) {
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	189	char state_str[EC_STATE_STRING_SIZE];
64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	190	ec_state_string(fsm->requested_state, state_str);
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	191	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	192	EC_ERR("Failed to set state %s on slave %u: ",
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	193	state_str, fsm->slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	194	ec_datagram_print_wc_error(datagram);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	195	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	196	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	197
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	198	// repeat writing new state to slave
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	199	ec_datagram_fpwr(datagram, slave->station_address, 0x0120, 2);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	200	EC_WRITE_U16(datagram->data, fsm->requested_state);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	201	fsm->retries = EC_FSM_RETRIES;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	202	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	203	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	204
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	205	if (unlikely(datagram->working_counter > 1)) {
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	206	char state_str[EC_STATE_STRING_SIZE];
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	207	ec_state_string(fsm->requested_state, state_str);
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	208	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	209	EC_ERR("Failed to set state %s on slave %u: ",
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	210	state_str, fsm->slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	211	ec_datagram_print_wc_error(datagram);
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	212	return;
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	213	}
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	214
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	215	fsm->take_time = 1;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	216
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	217	// read AL status from slave
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	218	ec_datagram_fprd(datagram, slave->station_address, 0x0130, 2);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	219	fsm->retries = EC_FSM_RETRIES;
738 880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	220	fsm->spontaneous_change = 0;
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	221	fsm->state = ec_fsm_change_state_status;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	222	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	223
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	224	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	225
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	226	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	227	Change state: STATUS.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	228	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	229
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	230	void ec_fsm_change_state_status(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	231	/*< finite state machine /)
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	232	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	233	ec_datagram_t *datagram = fsm->datagram;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	234	ec_slave_t *slave = fsm->slave;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	235
637 d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	236	if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--)
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	237	return;
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	238
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	239	if (datagram->state != EC_DATAGRAM_RECEIVED) {
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	240	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	241	EC_ERR("Failed to receive state checking datagram from slave %u"
a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	242	" (datagram state %u).\n",
594 07dd2a7df66e Added datagram state to "Failed to receive..." messages. Florian Pose <fp@igh-essen.com> parents: 505 diff changeset	243	slave->ring_position, datagram->state);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	244	return;
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	245	}
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	246
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	247	if (datagram->working_counter != 1) {
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	248	char req_state[EC_STATE_STRING_SIZE];
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	249	ec_state_string(fsm->requested_state, req_state);
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	250	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	251	EC_ERR("Failed to check state %s on slave %u: ",
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	252	req_state, slave->ring_position);
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	253	ec_datagram_print_wc_error(datagram);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	254	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	255	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	256
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	257	if (fsm->take_time) {
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	258	fsm->take_time = 0;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	259	fsm->jiffies_start = datagram->jiffies_sent;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	260	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	261
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	262	slave->current_state = EC_READ_U8(datagram->data);
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	263
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	264	if (slave->current_state == fsm->requested_state) {
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	265	// state has been set successfully
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	266	fsm->state = ec_fsm_change_state_end;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	267	return;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	268	}
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	269
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	270	if (slave->current_state != fsm->old_state) { // state changed
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	271	char req_state[EC_STATE_STRING_SIZE], cur_state[EC_STATE_STRING_SIZE];
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	272
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	273	ec_state_string(slave->current_state, cur_state);
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	274
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	275	if ((slave->current_state & 0x0F) != (fsm->old_state & 0x0F)) {
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	276	// Slave spontaneously changed its state just before the new state
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	277	// was written. Accept current state as old state and wait for
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	278	// state change
738 880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	279	fsm->spontaneous_change = 1;
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	280	fsm->old_state = slave->current_state;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	281	EC_WARN("Slave %u changed to %s in the meantime.\n",
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	282	slave->ring_position, cur_state);
738 880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	283	goto check_again;
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	284	}
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	285
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	286	// state change error
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	287
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	288	slave->error_flag = 1;
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	289	ec_state_string(fsm->requested_state, req_state);
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	290
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	291	EC_ERR("Failed to set %s state, slave %u refused state change (%s).\n",
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	292	req_state, slave->ring_position, cur_state);
a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	293	// fetch AL status error code
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	294	ec_datagram_fprd(datagram, slave->station_address, 0x0134, 2);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	295	fsm->retries = EC_FSM_RETRIES;
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	296	fsm->state = ec_fsm_change_state_code;
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	297	return;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	298	}
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	299
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	300	// still old state
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	301
439 0f5a3d983908 Increased state change checking timeout to 1s. Florian Pose <fp@igh-essen.com> parents: 438 diff changeset	302	if (datagram->jiffies_received - fsm->jiffies_start >= HZ) { // 1s
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	303	// timeout while checking
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	304	char state_str[EC_STATE_STRING_SIZE];
64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	305	ec_state_string(fsm->requested_state, state_str);
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	306	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	307	EC_ERR("Timeout while setting state %s on slave %u.\n",
738 880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	308	state_str, slave->ring_position);
880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	309	return;
880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	310	}
880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	311
880c6153101f Improved handling for spontaneous AL state changes. Florian Pose <fp@igh-essen.com> parents: 713 diff changeset	312	check_again:
469 a9c7991dca6b Fixed state change FSM again. Florian Pose <fp@igh-essen.com> parents: 454 diff changeset	313	// no timeout yet. check again
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	314	ec_datagram_fprd(datagram, slave->station_address, 0x0130, 2);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	315	fsm->retries = EC_FSM_RETRIES;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	316	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	317
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	318	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	319
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	320	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	321	Application layer status messages.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	322	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	323
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	324	const ec_code_msg_t al_status_messages[] = {
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	325	{0x0001, "Unspecified error"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	326	{0x0011, "Invalud requested state change"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	327	{0x0012, "Unknown requested state"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	328	{0x0013, "Bootstrap not supported"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	329	{0x0014, "No valid firmware"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	330	{0x0015, "Invalid mailbox configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	331	{0x0016, "Invalid mailbox configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	332	{0x0017, "Invalid sync manager configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	333	{0x0018, "No valid inputs available"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	334	{0x0019, "No valid outputs"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	335	{0x001A, "Synchronisation error"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	336	{0x001B, "Sync manager watchdog"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	337	{0x001C, "Invalid sync manager types"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	338	{0x001D, "Invalid output configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	339	{0x001E, "Invalid input configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	340	{0x001F, "Invalid watchdog configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	341	{0x0020, "Slave needs cold start"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	342	{0x0021, "Slave needs INIT"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	343	{0x0022, "Slave needs PREOP"},
813 bfc3f1ab52de Fixed typo SAVEOP -> SAFEOP. Florian Pose <fp@igh-essen.com> parents: 798 diff changeset	344	{0x0023, "Slave needs SAFEOP"},
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	345	{0x0030, "Invalid DC SYNCH configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	346	{0x0031, "Invalid DC latch configuration"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	347	{0x0032, "PLL error"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	348	{0x0033, "Invalid DC IO error"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	349	{0x0034, "Invalid DC timeout error"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	350	{0x0042, "MBOX EOE"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	351	{0x0043, "MBOX COE"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	352	{0x0044, "MBOX FOE"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	353	{0x0045, "MBOX SOE"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	354	{0x004F, "MBOX VOE"},
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	355	{}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	356	};
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	357
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	358	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	359
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	360	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	361	Change state: CODE.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	362	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	363
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	364	void ec_fsm_change_state_code(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	365	/*< finite state machine /)
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	366	{
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	367	ec_datagram_t *datagram = fsm->datagram;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	368	uint32_t code;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	369	const ec_code_msg_t *al_msg;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	370
637 d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	371	if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--)
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	372	return;
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	373
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	374	if (datagram->state != EC_DATAGRAM_RECEIVED) {
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	375	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	376	EC_ERR("Failed to receive AL status code datagram from slave %u"
a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	377	" (datagram state %u).\n",
594 07dd2a7df66e Added datagram state to "Failed to receive..." messages. Florian Pose <fp@igh-essen.com> parents: 505 diff changeset	378	fsm->slave->ring_position, datagram->state);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	379	return;
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	380	}
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	381
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	382	if (datagram->working_counter != 1) {
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	383	EC_WARN("Reception of AL status code datagram failed: ");
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	384	ec_datagram_print_wc_error(datagram);
798 5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	385	} else {
5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	386	code = EC_READ_U16(datagram->data);
5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	387	for (al_msg = al_status_messages; al_msg->code; al_msg++) {
5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	388	if (al_msg->code != code) continue;
5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	389	EC_ERR("AL status message 0x%04X: \"%s\".\n",
5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	390	al_msg->code, al_msg->message);
5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	391	break;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	392	}
798 5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	393	if (!al_msg->code)
5a58606726f3 Output AL status code zero. Florian Pose <fp@igh-essen.com> parents: 738 diff changeset	394	EC_ERR("Unknown AL status code 0x%04X.\n", code);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	395	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	396
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	397	// acknowledge "old" slave state
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	398	ec_fsm_change_state_start_ack(fsm); // execute immediately
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	399	}
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	400
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	401	/*****************************************************************************/
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	402
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	403	/**
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	404	Change state: START ACK.
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	405	*/
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	406
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	407	void ec_fsm_change_state_start_ack(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	408	/*< finite state machine /)
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	409	{
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	410	ec_slave_t *slave = fsm->slave;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	411	ec_datagram_t *datagram = fsm->datagram;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	412
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	413	ec_datagram_fpwr(datagram, slave->station_address, 0x0120, 2);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	414	EC_WRITE_U16(datagram->data, slave->current_state);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	415	fsm->retries = EC_FSM_RETRIES;
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	416	fsm->state = ec_fsm_change_state_ack;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	417	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	418
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	419	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	420
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	421	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	422	Change state: ACK.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	423	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	424
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	425	void ec_fsm_change_state_ack(ec_fsm_change_t fsm /< finite state machine /)
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	426	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	427	ec_datagram_t *datagram = fsm->datagram;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	428	ec_slave_t *slave = fsm->slave;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	429
637 d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	430	if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--)
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	431	return;
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	432
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	433	if (datagram->state != EC_DATAGRAM_RECEIVED) {
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	434	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	435	EC_ERR("Failed to receive state ack datagram for slave %u"
a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	436	" (datagram state %u).\n",
594 07dd2a7df66e Added datagram state to "Failed to receive..." messages. Florian Pose <fp@igh-essen.com> parents: 505 diff changeset	437	slave->ring_position, datagram->state);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	438	return;
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	439	}
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	440
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	441	if (datagram->working_counter != 1) {
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	442	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	443	EC_ERR("Reception of state ack datagram failed on slave %u: ",
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	444	slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	445	ec_datagram_print_wc_error(datagram);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	446	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	447	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	448
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	449	fsm->take_time = 1;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	450
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	451	// read new AL status
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	452	ec_datagram_fprd(datagram, slave->station_address, 0x0130, 2);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	453	fsm->retries = EC_FSM_RETRIES;
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	454	fsm->state = ec_fsm_change_state_check_ack;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	455	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	456
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	457	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	458
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	459	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	460	Change state: CHECK ACK.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	461	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	462
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	463	void ec_fsm_change_state_check_ack(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	464	/*< finite state machine /)
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	465	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	466	ec_datagram_t *datagram = fsm->datagram;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	467	ec_slave_t *slave = fsm->slave;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	468
637 d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	469	if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--)
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state Florian Pose <fp@igh-essen.com> parents: 594 diff changeset	470	return;
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	471
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	472	if (datagram->state != EC_DATAGRAM_RECEIVED) {
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	473	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	474	EC_ERR("Failed to receive state ack check datagram from slave %u"
a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	475	" (datagram state %u).\n",
594 07dd2a7df66e Added datagram state to "Failed to receive..." messages. Florian Pose <fp@igh-essen.com> parents: 505 diff changeset	476	slave->ring_position, datagram->state);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	477	return;
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	478	}
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	479
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	480	if (datagram->working_counter != 1) {
bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	481	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	482	EC_ERR("Reception of state ack check datagram failed on slave %u: ",
713 ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	483	slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced Florian Pose <fp@igh-essen.com> parents: 637 diff changeset	484	ec_datagram_print_wc_error(datagram);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	485	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	486	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	487
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	488	if (fsm->take_time) {
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	489	fsm->take_time = 0;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	490	fsm->jiffies_start = datagram->jiffies_sent;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	491	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	492
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	493	slave->current_state = EC_READ_U8(datagram->data);
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	494
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	495	if (!(slave->current_state & EC_SLAVE_STATE_ACK_ERR)) {
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	496	char state_str[EC_STATE_STRING_SIZE];
64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	497	ec_state_string(slave->current_state, state_str);
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	498	if (fsm->mode == EC_FSM_CHANGE_MODE_FULL) {
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	499	fsm->state = ec_fsm_change_state_error;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	500	}
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	501	else { // EC_FSM_CHANGE_MODE_ACK_ONLY
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	502	fsm->state = ec_fsm_change_state_end;
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	503	}
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	504	EC_INFO("Acknowledged state %s on slave %u.\n",
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	505	state_str, slave->ring_position);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	506	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	507	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	508
443 0746236dd032 Fixes in state change FSM. Florian Pose <fp@igh-essen.com> parents: 439 diff changeset	509	if (datagram->jiffies_received - fsm->jiffies_start >= HZ) { // 1s
0746236dd032 Fixes in state change FSM. Florian Pose <fp@igh-essen.com> parents: 439 diff changeset	510	// timeout while checking
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	511	char state_str[EC_STATE_STRING_SIZE];
443 0746236dd032 Fixes in state change FSM. Florian Pose <fp@igh-essen.com> parents: 439 diff changeset	512	ec_state_string(slave->current_state, state_str);
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	513	fsm->state = ec_fsm_change_state_error;
986 a486591ba86b Replaced misleading %i by %u. Florian Pose <fp@igh-essen.com> parents: 815 diff changeset	514	EC_ERR("Timeout while acknowledging state %s on slave %u.\n",
438 64edce89fe9b Output state names instead of codes in change FSM. Florian Pose <fp@igh-essen.com> parents: 435 diff changeset	515	state_str, slave->ring_position);
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	516	return;
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	517	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	518
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	519	// reread new AL status
815 002fe9ec778f Implemented missing datagram types. Florian Pose <fp@igh-essen.com> parents: 813 diff changeset	520	ec_datagram_fprd(datagram, slave->station_address, 0x0130, 2);
505 bc443ca0077f State machines re-send datagrams on timeout. Florian Pose <fp@igh-essen.com> parents: 469 diff changeset	521	fsm->retries = EC_FSM_RETRIES;
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	522	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	523
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	524	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	525
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	526	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	527	State: ERROR.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	528	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	529
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	530	void ec_fsm_change_state_error(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	531	/*< finite state machine /)
434 0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	532	{
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	533	}
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	534
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	535	/*****************************************************************************/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	536
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	537	/**
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	538	State: END.
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	539	*/
0180d8277311 Layed out state change state machine. Florian Pose <fp@igh-essen.com> parents: diff changeset	540
454 25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	541	void ec_fsm_change_state_end(ec_fsm_change_t *fsm
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	542	/*< finite state machine /)
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	543	{
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	544	}
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	545
25cc4a3b9e0a State acknowledgement in master state machine. Florian Pose <fp@igh-essen.com> parents: 443 diff changeset	546	/*****************************************************************************/

author	Florian Pose <fp@igh-essen.com>
	Mon, 29 Dec 2008 14:10:27 +0000
branch	stable-1.4
changeset 1685	399ef727bf62
parent 986	a486591ba86b
child 1709	63e4bc918640
permissions	-rw-r--r--