master/fsm_sii.c
author Florian Pose <fp@igh-essen.com>
Mon, 23 Jun 2008 10:27:40 +0000
changeset 1051 40a4f31ec3b8
parent 1039 2881a83d084f
child 1123 17bef224061d
permissions -rw-r--r--
Added ec_pdo_list_print().
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     1
/******************************************************************************
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     2
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     3
 *  $Id$
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     4
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     5
 *  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     6
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     7
 *  This file is part of the IgH EtherCAT Master.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     8
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
     9
 *  The IgH EtherCAT Master is free software; you can redistribute it
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    10
 *  and/or modify it under the terms of the GNU General Public License
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    11
 *  as published by the Free Software Foundation; either version 2 of the
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    12
 *  License, or (at your option) any later version.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    13
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    14
 *  The IgH EtherCAT Master is distributed in the hope that it will be
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    15
 *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    16
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    17
 *  GNU General Public License for more details.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    18
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    19
 *  You should have received a copy of the GNU General Public License
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    20
 *  along with the IgH EtherCAT Master; if not, write to the Free Software
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    21
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    22
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    23
 *  The right to use EtherCAT Technology is granted and comes free of
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    24
 *  charge under condition of compatibility of product made by
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    25
 *  Licensee. People intending to distribute/sell products based on the
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    26
 *  code, have to sign an agreement to guarantee that products using
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    27
 *  software based on IgH EtherCAT master stay compatible with the actual
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    28
 *  EtherCAT specification (which are released themselves as an open
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    29
 *  standard) as the (only) precondition to have the right to use EtherCAT
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    30
 *  Technology, IP and trade marks.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    31
 *
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    32
 *****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    33
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    34
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    35
   \file
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    36
   EtherCAT slave information interface FSM.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    37
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    38
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    39
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    40
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    41
#include "globals.h"
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    42
#include "mailbox.h"
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    43
#include "master.h"
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    44
#include "fsm_sii.h"
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    45
758
8fa6f825eb7d Updated Doxygen documentation.
Florian Pose <fp@igh-essen.com>
parents: 755
diff changeset
    46
/**
8fa6f825eb7d Updated Doxygen documentation.
Florian Pose <fp@igh-essen.com>
parents: 755
diff changeset
    47
 * Read/Write timeout. [ms]
8fa6f825eb7d Updated Doxygen documentation.
Florian Pose <fp@igh-essen.com>
parents: 755
diff changeset
    48
 */
872
d4e0380d63b3 Renamed EEPROM to SII.
Florian Pose <fp@igh-essen.com>
parents: 815
diff changeset
    49
#define SII_TIMEOUT 10
758
8fa6f825eb7d Updated Doxygen documentation.
Florian Pose <fp@igh-essen.com>
parents: 755
diff changeset
    50
8fa6f825eb7d Updated Doxygen documentation.
Florian Pose <fp@igh-essen.com>
parents: 755
diff changeset
    51
/**
8fa6f825eb7d Updated Doxygen documentation.
Florian Pose <fp@igh-essen.com>
parents: 755
diff changeset
    52
 * Time before evaluating answer at writing. [ms]
8fa6f825eb7d Updated Doxygen documentation.
Florian Pose <fp@igh-essen.com>
parents: 755
diff changeset
    53
 */
872
d4e0380d63b3 Renamed EEPROM to SII.
Florian Pose <fp@igh-essen.com>
parents: 815
diff changeset
    54
#define SII_INHIBIT  5
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
    55
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
    56
//#define SII_DEBUG
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
    57
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    58
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    59
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    60
void ec_fsm_sii_state_start_reading(ec_fsm_sii_t *);
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    61
void ec_fsm_sii_state_read_check(ec_fsm_sii_t *);
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    62
void ec_fsm_sii_state_read_fetch(ec_fsm_sii_t *);
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    63
void ec_fsm_sii_state_start_writing(ec_fsm_sii_t *);
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    64
void ec_fsm_sii_state_write_check(ec_fsm_sii_t *);
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    65
void ec_fsm_sii_state_write_check2(ec_fsm_sii_t *);
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    66
void ec_fsm_sii_state_end(ec_fsm_sii_t *);
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
    67
void ec_fsm_sii_state_error(ec_fsm_sii_t *);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    68
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    69
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    70
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    71
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    72
   Constructor.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    73
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    74
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    75
void ec_fsm_sii_init(ec_fsm_sii_t *fsm, /**< finite state machine */
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    76
                     ec_datagram_t *datagram /**< datagram structure to use */
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    77
                     )
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    78
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    79
    fsm->state = NULL;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    80
    fsm->datagram = datagram;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    81
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    82
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    83
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    84
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    85
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    86
   Destructor.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    87
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    88
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    89
void ec_fsm_sii_clear(ec_fsm_sii_t *fsm /**< finite state machine */)
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    90
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    91
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    92
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    93
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    94
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    95
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    96
   Initializes the SII read state machine.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    97
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    98
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
    99
void ec_fsm_sii_read(ec_fsm_sii_t *fsm, /**< finite state machine */
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   100
                     ec_slave_t *slave, /**< slave to read from */
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   101
                     uint16_t word_offset, /**< offset to read from */
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   102
                     ec_fsm_sii_addressing_t mode /**< addressing scheme */
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   103
                     )
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   104
{
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   105
    fsm->state = ec_fsm_sii_state_start_reading;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   106
    fsm->slave = slave;
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   107
    fsm->word_offset = word_offset;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   108
    fsm->mode = mode;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   109
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   110
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   111
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   112
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   113
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   114
   Initializes the SII write state machine.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   115
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   116
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   117
void ec_fsm_sii_write(ec_fsm_sii_t *fsm, /**< finite state machine */
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   118
                      ec_slave_t *slave, /**< slave to read from */
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   119
                      uint16_t word_offset, /**< offset to read from */
979
405cc2d033e0 Renamed some fields in ec_sii_request_t to word addressing.
Florian Pose <fp@igh-essen.com>
parents: 872
diff changeset
   120
                      const uint16_t *value, /**< pointer to 2 bytes of data */
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   121
                      ec_fsm_sii_addressing_t mode /**< addressing scheme */
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   122
                      )
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   123
{
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   124
    fsm->state = ec_fsm_sii_state_start_writing;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   125
    fsm->slave = slave;
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   126
    fsm->word_offset = word_offset;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   127
    fsm->mode = mode;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   128
    memcpy(fsm->value, value, 2);
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   129
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   130
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   131
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   132
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   133
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   134
   Executes the SII state machine.
435
779a18d12e6c Removed state machine running() methods.
Florian Pose <fp@igh-essen.com>
parents: 433
diff changeset
   135
   \return false, if the state machine has terminated
779a18d12e6c Removed state machine running() methods.
Florian Pose <fp@igh-essen.com>
parents: 433
diff changeset
   136
*/
779a18d12e6c Removed state machine running() methods.
Florian Pose <fp@igh-essen.com>
parents: 433
diff changeset
   137
779a18d12e6c Removed state machine running() methods.
Florian Pose <fp@igh-essen.com>
parents: 433
diff changeset
   138
int ec_fsm_sii_exec(ec_fsm_sii_t *fsm /**< finite state machine */)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   139
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   140
    fsm->state(fsm);
435
779a18d12e6c Removed state machine running() methods.
Florian Pose <fp@igh-essen.com>
parents: 433
diff changeset
   141
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   142
    return fsm->state != ec_fsm_sii_state_end
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   143
		&& fsm->state != ec_fsm_sii_state_error;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   144
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   145
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   146
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   147
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   148
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   149
   Returns, if the master startup state machine terminated with success.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   150
   \return non-zero if successful.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   151
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   152
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   153
int ec_fsm_sii_success(ec_fsm_sii_t *fsm /**< Finite state machine */)
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   154
{
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   155
    return fsm->state == ec_fsm_sii_state_end;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   156
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   157
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   158
/******************************************************************************
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   159
 * state functions
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   160
 *****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   161
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   162
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   163
   SII state: START READING.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   164
   Starts reading the slave information interface.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   165
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   166
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   167
void ec_fsm_sii_state_start_reading(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   168
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   169
		)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   170
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   171
    ec_datagram_t *datagram = fsm->datagram;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   172
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   173
    // initiate read operation
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   174
    switch (fsm->mode) {
815
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   175
        case EC_FSM_SII_USE_INCREMENT_ADDRESS:
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   176
            ec_datagram_apwr(datagram, fsm->slave->ring_position, 0x502, 4);
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   177
            break;
815
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   178
        case EC_FSM_SII_USE_CONFIGURED_ADDRESS:
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   179
            ec_datagram_fpwr(datagram, fsm->slave->station_address, 0x502, 4);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   180
            break;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   181
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   182
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   183
    EC_WRITE_U8 (datagram->data,     0x80); // two address octets
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   184
    EC_WRITE_U8 (datagram->data + 1, 0x01); // request read operation
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   185
    EC_WRITE_U16(datagram->data + 2, fsm->word_offset);
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   186
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   187
#ifdef SII_DEBUG
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   188
	EC_DBG("reading SII data:\n");
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   189
	ec_print_data(datagram->data, 4);
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   190
#endif
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   191
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   192
    fsm->retries = EC_FSM_RETRIES;
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   193
    fsm->state = ec_fsm_sii_state_read_check;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   194
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   195
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   196
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   197
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   198
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   199
   SII state: READ CHECK.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   200
   Checks, if the SII-read-datagram has been sent and issues a fetch datagram.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   201
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   202
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   203
void ec_fsm_sii_state_read_check(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   204
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   205
		)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   206
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   207
    ec_datagram_t *datagram = fsm->datagram;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   208
637
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents: 600
diff changeset
   209
    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: 600
diff changeset
   210
        return;
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   211
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   212
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   213
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   214
        EC_ERR("Failed to receive SII read datagram from slave %u"
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   215
                " (datagram state %u).\n",
594
07dd2a7df66e Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents: 505
diff changeset
   216
               fsm->slave->ring_position, datagram->state);
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   217
        return;
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   218
    }
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   219
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   220
    if (datagram->working_counter != 1) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   221
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   222
        EC_ERR("Reception of SII read datagram failed on slave %u: ",
713
ae41cadd25b6 Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents: 637
diff changeset
   223
                fsm->slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents: 637
diff changeset
   224
        ec_datagram_print_wc_error(datagram);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   225
        return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   226
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   227
1039
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   228
    fsm->jiffies_start = datagram->jiffies_sent;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   229
    fsm->check_once_more = 1;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   230
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   231
    // issue check/fetch datagram
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   232
    switch (fsm->mode) {
815
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   233
        case EC_FSM_SII_USE_INCREMENT_ADDRESS:
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   234
            ec_datagram_aprd(datagram, fsm->slave->ring_position, 0x502, 10);
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   235
            break;
815
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   236
        case EC_FSM_SII_USE_CONFIGURED_ADDRESS:
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   237
            ec_datagram_fprd(datagram, fsm->slave->station_address, 0x502, 10);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   238
            break;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   239
    }
637
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents: 600
diff changeset
   240
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   241
    fsm->retries = EC_FSM_RETRIES;
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   242
    fsm->state = ec_fsm_sii_state_read_fetch;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   243
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   244
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   245
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   246
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   247
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   248
   SII state: READ FETCH.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   249
   Fetches the result of an SII-read datagram.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   250
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   251
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   252
void ec_fsm_sii_state_read_fetch(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   253
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   254
		)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   255
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   256
    ec_datagram_t *datagram = fsm->datagram;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   257
637
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents: 600
diff changeset
   258
    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: 600
diff changeset
   259
        return;
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   260
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   261
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   262
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   263
        EC_ERR("Failed to receive SII check/fetch datagram from slave %u"
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   264
                " (datagram state %u).\n",
594
07dd2a7df66e Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents: 505
diff changeset
   265
               fsm->slave->ring_position, datagram->state);
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   266
        return;
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   267
    }
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   268
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   269
    if (datagram->working_counter != 1) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   270
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   271
        EC_ERR("Reception of SII check/fetch datagram failed on slave %u: ",
713
ae41cadd25b6 Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents: 637
diff changeset
   272
                fsm->slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents: 637
diff changeset
   273
        ec_datagram_print_wc_error(datagram);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   274
        return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   275
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   276
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   277
#ifdef SII_DEBUG
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   278
	EC_DBG("checking SII read state:\n");
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   279
	ec_print_data(datagram->data, 10);
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   280
#endif
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   281
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   282
    if (EC_READ_U8(datagram->data + 1) & 0x20) {
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   283
        EC_ERR("SII: Error on last SII command!\n");
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   284
        fsm->state = ec_fsm_sii_state_error;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   285
        return;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   286
    }
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   287
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   288
    // check "busy bit"
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   289
    if (EC_READ_U8(datagram->data + 1) & 0x81) { // busy bit or
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   290
												 // read operation busy
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   291
        // still busy... timeout?
1039
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   292
        unsigned long diff_ms =
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   293
            (datagram->jiffies_received - fsm->jiffies_start) * 1000 / HZ;
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   294
        if (diff_ms >= SII_TIMEOUT) {
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   295
            if (fsm->check_once_more) {
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   296
				fsm->check_once_more = 0;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   297
			} else {
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   298
                EC_ERR("SII: Read timeout.\n");
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   299
                fsm->state = ec_fsm_sii_state_error;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   300
                return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   301
            }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   302
        }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   303
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   304
        // issue check/fetch datagram again
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   305
        fsm->retries = EC_FSM_RETRIES;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   306
        return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   307
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   308
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   309
    // SII value received.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   310
    memcpy(fsm->value, datagram->data + 6, 4);
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   311
    fsm->state = ec_fsm_sii_state_end;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   312
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   313
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   314
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   315
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   316
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   317
   SII state: START WRITING.
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   318
   Starts writing a word through the slave information interface.
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   319
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   320
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   321
void ec_fsm_sii_state_start_writing(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   322
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   323
		)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   324
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   325
    ec_datagram_t *datagram = fsm->datagram;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   326
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   327
    // initiate write operation
815
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   328
    ec_datagram_fpwr(datagram, fsm->slave->station_address, 0x502, 8);
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   329
    EC_WRITE_U8 (datagram->data,     0x81); // two address octets
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   330
											// + enable write access
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   331
    EC_WRITE_U8 (datagram->data + 1, 0x02); // request write operation
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   332
    EC_WRITE_U16(datagram->data + 2, fsm->word_offset);
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   333
	memset(datagram->data + 4, 0x00, 2);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   334
    memcpy(datagram->data + 6, fsm->value, 2);
637
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents: 600
diff changeset
   335
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   336
#ifdef SII_DEBUG
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   337
	EC_DBG("writing SII data:\n");
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   338
	ec_print_data(datagram->data, 8);
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   339
#endif
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   340
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   341
    fsm->retries = EC_FSM_RETRIES;
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   342
    fsm->state = ec_fsm_sii_state_write_check;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   343
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   344
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   345
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   346
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   347
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   348
   SII state: WRITE CHECK.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   349
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   350
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   351
void ec_fsm_sii_state_write_check(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   352
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   353
		)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   354
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   355
    ec_datagram_t *datagram = fsm->datagram;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   356
637
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents: 600
diff changeset
   357
    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: 600
diff changeset
   358
        return;
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   359
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   360
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   361
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   362
        EC_ERR("Failed to receive SII write datagram for slave %u"
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   363
                " (datagram state %u).\n",
594
07dd2a7df66e Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents: 505
diff changeset
   364
               fsm->slave->ring_position, datagram->state);
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   365
        return;
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   366
    }
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   367
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   368
    if (datagram->working_counter != 1) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   369
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   370
        EC_ERR("Reception of SII write datagram failed on slave %u: ",
713
ae41cadd25b6 Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents: 637
diff changeset
   371
                fsm->slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents: 637
diff changeset
   372
        ec_datagram_print_wc_error(datagram);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   373
        return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   374
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   375
1039
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   376
    fsm->jiffies_start = datagram->jiffies_sent;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   377
    fsm->check_once_more = 1;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   378
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   379
    // issue check datagram
815
002fe9ec778f Implemented missing datagram types.
Florian Pose <fp@igh-essen.com>
parents: 758
diff changeset
   380
    ec_datagram_fprd(datagram, fsm->slave->station_address, 0x502, 2);
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   381
    fsm->retries = EC_FSM_RETRIES;
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   382
    fsm->state = ec_fsm_sii_state_write_check2;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   383
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   384
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   385
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   386
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   387
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   388
   SII state: WRITE CHECK 2.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   389
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   390
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   391
void ec_fsm_sii_state_write_check2(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   392
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   393
		)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   394
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   395
    ec_datagram_t *datagram = fsm->datagram;
1039
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   396
    unsigned long diff_ms;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   397
637
d5d04c868e0e Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents: 600
diff changeset
   398
    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: 600
diff changeset
   399
        return;
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   400
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   401
    if (datagram->state != EC_DATAGRAM_RECEIVED) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   402
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   403
        EC_ERR("Failed to receive SII write check datagram from slave %u"
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   404
                " (datagram state %u).\n",
594
07dd2a7df66e Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents: 505
diff changeset
   405
               fsm->slave->ring_position, datagram->state);
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   406
        return;
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   407
    }
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   408
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   409
    if (datagram->working_counter != 1) {
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   410
        fsm->state = ec_fsm_sii_state_error;
986
a486591ba86b Replaced misleading %i by %u.
Florian Pose <fp@igh-essen.com>
parents: 979
diff changeset
   411
        EC_ERR("Reception of SII write 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
   412
                fsm->slave->ring_position);
ae41cadd25b6 Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents: 637
diff changeset
   413
        ec_datagram_print_wc_error(datagram);
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   414
        return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   415
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   416
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   417
#ifdef SII_DEBUG
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   418
	EC_DBG("checking SII write state:\n");
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   419
	ec_print_data(datagram->data, 2);
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   420
#endif
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   421
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   422
    if (EC_READ_U8(datagram->data + 1) & 0x20) {
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   423
        EC_ERR("SII: Error on last SII command!\n");
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   424
        fsm->state = ec_fsm_sii_state_error;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   425
        return;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   426
    }
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   427
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   428
	/* FIXME: some slaves never answer with the busy flag set...
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   429
	 * wait a few ms for the write operation to complete. */
1039
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   430
    diff_ms = (datagram->jiffies_received - fsm->jiffies_start) * 1000 / HZ;
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   431
    if (diff_ms < SII_INHIBIT) {
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   432
#ifdef SII_DEBUG
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   433
		EC_DBG("too early.\n");
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   434
#endif
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   435
        // issue check datagram again
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   436
        fsm->retries = EC_FSM_RETRIES;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   437
        return;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   438
	}
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   439
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   440
    if (EC_READ_U8(datagram->data + 1) & 0x82) { // busy bit or
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   441
												 // write operation busy bit
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   442
        // still busy... timeout?
1039
2881a83d084f Use jiffies instead of cycles in SII state machine.
Florian Pose <fp@igh-essen.com>
parents: 986
diff changeset
   443
        if (diff_ms >= SII_TIMEOUT) {
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   444
            if (fsm->check_once_more) {
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   445
				fsm->check_once_more = 0;
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   446
			} else {
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   447
                EC_ERR("SII: Write timeout.\n");
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   448
                fsm->state = ec_fsm_sii_state_error;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   449
                return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   450
            }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   451
        }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   452
755
178353fc47e5 SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents: 754
diff changeset
   453
        // issue check datagram again
505
bc443ca0077f State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents: 435
diff changeset
   454
        fsm->retries = EC_FSM_RETRIES;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   455
        return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   456
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   457
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   458
    if (EC_READ_U8(datagram->data + 1) & 0x40) {
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   459
        EC_ERR("SII: Write operation failed!\n");
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   460
        fsm->state = ec_fsm_sii_state_error;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   461
        return;
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   462
    }
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   463
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   464
    // success
753
7ba5f9cd8f7e Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents: 713
diff changeset
   465
    fsm->state = ec_fsm_sii_state_end;
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   466
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   467
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   468
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   469
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   470
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   471
   State: ERROR.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   472
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   473
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   474
void ec_fsm_sii_state_error(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   475
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   476
		)
433
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   477
{
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   478
}
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   479
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   480
/*****************************************************************************/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   481
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   482
/**
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   483
   State: END.
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   484
*/
100f51f28cf2 Layed out SII state machine.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   485
754
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   486
void ec_fsm_sii_state_end(
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   487
		ec_fsm_sii_t *fsm /**< finite state machine */
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   488
		)
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   489
{
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   490
}
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   491
0b47b49c5976 Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents: 753
diff changeset
   492
/*****************************************************************************/