author | Florian Pose <fp@igh-essen.com> |
Mon, 24 Sep 2007 10:35:00 +0000 | |
changeset 757 | 6210c4260899 |
parent 755 | 178353fc47e5 |
child 758 | 8fa6f825eb7d |
permissions | -rw-r--r-- |
433 | 1 |
/****************************************************************************** |
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* |
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* $Id$ |
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* |
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* Copyright (C) 2006 Florian Pose, Ingenieurgemeinschaft IgH |
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* |
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* This file is part of the IgH EtherCAT Master. |
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* |
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* The IgH EtherCAT Master is free software; you can redistribute it |
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* and/or modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 of the |
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* License, or (at your option) any later version. |
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* |
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* The IgH EtherCAT Master is distributed in the hope that it will be |
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with the IgH EtherCAT Master; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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* |
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* The right to use EtherCAT Technology is granted and comes free of |
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* charge under condition of compatibility of product made by |
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* Licensee. People intending to distribute/sell products based on the |
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* code, have to sign an agreement to guarantee that products using |
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* software based on IgH EtherCAT master stay compatible with the actual |
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* EtherCAT specification (which are released themselves as an open |
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* standard) as the (only) precondition to have the right to use EtherCAT |
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* Technology, IP and trade marks. |
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* |
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*****************************************************************************/ |
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/** |
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\file |
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EtherCAT slave information interface FSM. |
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*/ |
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/*****************************************************************************/ |
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#include "globals.h" |
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#include "mailbox.h" |
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#include "master.h" |
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#include "fsm_sii.h" |
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#define EEPROM_TIMEOUT 10 // read/write timeout [ms] |
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#define EEPROM_INHIBIT 5 // time before evaluating answer at writing [ms] |
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|
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//#define SII_DEBUG |
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/*****************************************************************************/ |
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void ec_fsm_sii_state_start_reading(ec_fsm_sii_t *); |
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void ec_fsm_sii_state_read_check(ec_fsm_sii_t *); |
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void ec_fsm_sii_state_read_fetch(ec_fsm_sii_t *); |
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void ec_fsm_sii_state_start_writing(ec_fsm_sii_t *); |
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void ec_fsm_sii_state_write_check(ec_fsm_sii_t *); |
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void ec_fsm_sii_state_write_check2(ec_fsm_sii_t *); |
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void ec_fsm_sii_state_end(ec_fsm_sii_t *); |
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void ec_fsm_sii_state_error(ec_fsm_sii_t *); |
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/*****************************************************************************/ |
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/** |
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Constructor. |
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*/ |
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void ec_fsm_sii_init(ec_fsm_sii_t *fsm, /**< finite state machine */ |
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ec_datagram_t *datagram /**< datagram structure to use */ |
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) |
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{ |
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fsm->state = NULL; |
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fsm->datagram = datagram; |
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} |
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/*****************************************************************************/ |
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/** |
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Destructor. |
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*/ |
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void ec_fsm_sii_clear(ec_fsm_sii_t *fsm /**< finite state machine */) |
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{ |
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} |
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/*****************************************************************************/ |
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/** |
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Initializes the SII read state machine. |
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*/ |
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void ec_fsm_sii_read(ec_fsm_sii_t *fsm, /**< finite state machine */ |
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ec_slave_t *slave, /**< slave to read from */ |
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uint16_t word_offset, /**< offset to read from */ |
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ec_fsm_sii_addressing_t mode /**< addressing scheme */ |
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) |
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{ |
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fsm->state = ec_fsm_sii_state_start_reading; |
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fsm->slave = slave; |
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fsm->word_offset = word_offset; |
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fsm->mode = mode; |
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} |
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/*****************************************************************************/ |
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/** |
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Initializes the SII write state machine. |
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*/ |
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void ec_fsm_sii_write(ec_fsm_sii_t *fsm, /**< finite state machine */ |
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ec_slave_t *slave, /**< slave to read from */ |
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uint16_t word_offset, /**< offset to read from */ |
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const uint8_t *value, /**< pointer to 2 bytes of data */ |
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ec_fsm_sii_addressing_t mode /**< addressing scheme */ |
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) |
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{ |
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fsm->state = ec_fsm_sii_state_start_writing; |
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fsm->slave = slave; |
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fsm->word_offset = word_offset; |
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fsm->mode = mode; |
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memcpy(fsm->value, value, 2); |
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} |
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/*****************************************************************************/ |
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/** |
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Executes the SII state machine. |
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\return false, if the state machine has terminated |
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*/ |
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int ec_fsm_sii_exec(ec_fsm_sii_t *fsm /**< finite state machine */) |
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{ |
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fsm->state(fsm); |
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return fsm->state != ec_fsm_sii_state_end |
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&& fsm->state != ec_fsm_sii_state_error; |
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} |
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/*****************************************************************************/ |
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/** |
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Returns, if the master startup state machine terminated with success. |
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\return non-zero if successful. |
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*/ |
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int ec_fsm_sii_success(ec_fsm_sii_t *fsm /**< Finite state machine */) |
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{ |
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return fsm->state == ec_fsm_sii_state_end; |
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} |
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/****************************************************************************** |
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* state functions |
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*****************************************************************************/ |
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/** |
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SII state: START READING. |
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Starts reading the slave information interface. |
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*/ |
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void ec_fsm_sii_state_start_reading( |
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ec_fsm_sii_t *fsm /**< finite state machine */ |
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) |
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{ |
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ec_datagram_t *datagram = fsm->datagram; |
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// initiate read operation |
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switch (fsm->mode) { |
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case EC_FSM_SII_POSITION: |
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ec_datagram_apwr(datagram, fsm->slave->ring_position, 0x502, 4); |
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break; |
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case EC_FSM_SII_NODE: |
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ec_datagram_npwr(datagram, fsm->slave->station_address, 0x502, 4); |
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break; |
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} |
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EC_WRITE_U8 (datagram->data, 0x80); // two address octets |
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EC_WRITE_U8 (datagram->data + 1, 0x01); // request read operation |
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EC_WRITE_U16(datagram->data + 2, fsm->word_offset); |
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#ifdef SII_DEBUG |
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EC_DBG("reading SII data:\n"); |
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182 |
ec_print_data(datagram->data, 4); |
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183 |
#endif |
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fsm->retries = EC_FSM_RETRIES; |
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186 |
fsm->state = ec_fsm_sii_state_read_check; |
433 | 187 |
} |
188 |
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189 |
/*****************************************************************************/ |
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190 |
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191 |
/** |
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192 |
SII state: READ CHECK. |
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193 |
Checks, if the SII-read-datagram has been sent and issues a fetch datagram. |
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194 |
*/ |
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195 |
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196 |
void ec_fsm_sii_state_read_check( |
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197 |
ec_fsm_sii_t *fsm /**< finite state machine */ |
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Changed unit of ec_eeprom_write_request_t from word to byte.
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parents:
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diff
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|
198 |
) |
433 | 199 |
{ |
200 |
ec_datagram_t *datagram = fsm->datagram; |
|
201 |
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202 |
if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--) |
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|
203 |
return; |
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|
204 |
|
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205 |
if (datagram->state != EC_DATAGRAM_RECEIVED) { |
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206 |
fsm->state = ec_fsm_sii_state_error; |
594
07dd2a7df66e
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|
207 |
EC_ERR("Failed to receive SII read datagram from slave %i" |
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208 |
" (datagram state %i).\n", |
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Added datagram state to "Failed to receive..." messages.
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|
209 |
fsm->slave->ring_position, datagram->state); |
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|
210 |
return; |
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|
211 |
} |
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212 |
|
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|
213 |
if (datagram->working_counter != 1) { |
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parents:
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diff
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|
214 |
fsm->state = ec_fsm_sii_state_error; |
713
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Better handling of unexpected working counters; introduced
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diff
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|
215 |
EC_ERR("Reception of SII read datagram failed on slave %i: ", |
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|
216 |
fsm->slave->ring_position); |
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diff
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|
217 |
ec_datagram_print_wc_error(datagram); |
433 | 218 |
return; |
219 |
} |
|
220 |
||
221 |
fsm->cycles_start = datagram->cycles_sent; |
|
222 |
fsm->check_once_more = 1; |
|
223 |
||
224 |
// issue check/fetch datagram |
|
225 |
switch (fsm->mode) { |
|
226 |
case EC_FSM_SII_POSITION: |
|
227 |
ec_datagram_aprd(datagram, fsm->slave->ring_position, 0x502, 10); |
|
228 |
break; |
|
229 |
case EC_FSM_SII_NODE: |
|
230 |
ec_datagram_nprd(datagram, fsm->slave->station_address, 0x502, 10); |
|
231 |
break; |
|
232 |
} |
|
637
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Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents:
600
diff
changeset
|
233 |
|
505
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
234 |
fsm->retries = EC_FSM_RETRIES; |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
235 |
fsm->state = ec_fsm_sii_state_read_fetch; |
433 | 236 |
} |
237 |
||
238 |
/*****************************************************************************/ |
|
239 |
||
240 |
/** |
|
241 |
SII state: READ FETCH. |
|
242 |
Fetches the result of an SII-read datagram. |
|
243 |
*/ |
|
244 |
||
754
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
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parents:
753
diff
changeset
|
245 |
void ec_fsm_sii_state_read_fetch( |
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
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parents:
753
diff
changeset
|
246 |
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
|
247 |
) |
433 | 248 |
{ |
249 |
ec_datagram_t *datagram = fsm->datagram; |
|
250 |
||
637
d5d04c868e0e
Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents:
600
diff
changeset
|
251 |
if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--) |
d5d04c868e0e
Removed ecrt_master_run(), removed datagram queueing from state
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diff
changeset
|
252 |
return; |
505
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
253 |
|
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parents:
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diff
changeset
|
254 |
if (datagram->state != EC_DATAGRAM_RECEIVED) { |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
255 |
fsm->state = ec_fsm_sii_state_error; |
594
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
256 |
EC_ERR("Failed to receive SII check/fetch datagram from slave %i" |
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
257 |
" (datagram state %i).\n", |
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
258 |
fsm->slave->ring_position, datagram->state); |
505
bc443ca0077f
State machines re-send datagrams on timeout.
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parents:
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diff
changeset
|
259 |
return; |
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State machines re-send datagrams on timeout.
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parents:
435
diff
changeset
|
260 |
} |
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State machines re-send datagrams on timeout.
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parents:
435
diff
changeset
|
261 |
|
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State machines re-send datagrams on timeout.
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parents:
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diff
changeset
|
262 |
if (datagram->working_counter != 1) { |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
263 |
fsm->state = ec_fsm_sii_state_error; |
713
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
264 |
EC_ERR("Reception of SII check/fetch datagram failed on slave %i: ", |
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
265 |
fsm->slave->ring_position); |
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
266 |
ec_datagram_print_wc_error(datagram); |
433 | 267 |
return; |
268 |
} |
|
269 |
||
755
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SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
270 |
#ifdef SII_DEBUG |
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diff
changeset
|
271 |
EC_DBG("checking SII read state:\n"); |
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diff
changeset
|
272 |
ec_print_data(datagram->data, 10); |
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diff
changeset
|
273 |
#endif |
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diff
changeset
|
274 |
|
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SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
275 |
if (EC_READ_U8(datagram->data + 1) & 0x20) { |
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SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
276 |
EC_ERR("SII: Error on last SII command!\n"); |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
277 |
fsm->state = ec_fsm_sii_state_error; |
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SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
278 |
return; |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
279 |
} |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
280 |
|
433 | 281 |
// check "busy bit" |
755
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
282 |
if (EC_READ_U8(datagram->data + 1) & 0x81) { // busy bit or |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
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parents:
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diff
changeset
|
283 |
// read operation busy |
433 | 284 |
// still busy... timeout? |
285 |
if (datagram->cycles_received |
|
755
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
286 |
- fsm->cycles_start >= (cycles_t) EEPROM_TIMEOUT * cpu_khz) { |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
287 |
if (fsm->check_once_more) { |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
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parents:
754
diff
changeset
|
288 |
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
|
289 |
} else { |
433 | 290 |
EC_ERR("SII: Read timeout.\n"); |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
291 |
fsm->state = ec_fsm_sii_state_error; |
433 | 292 |
return; |
293 |
} |
|
294 |
} |
|
295 |
||
296 |
// issue check/fetch datagram again |
|
505
bc443ca0077f
State machines re-send datagrams on timeout.
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parents:
435
diff
changeset
|
297 |
fsm->retries = EC_FSM_RETRIES; |
433 | 298 |
return; |
299 |
} |
|
300 |
||
301 |
// SII value received. |
|
302 |
memcpy(fsm->value, datagram->data + 6, 4); |
|
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
303 |
fsm->state = ec_fsm_sii_state_end; |
433 | 304 |
} |
305 |
||
306 |
/*****************************************************************************/ |
|
307 |
||
308 |
/** |
|
309 |
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
|
310 |
Starts writing a word through the slave information interface. |
433 | 311 |
*/ |
312 |
||
754
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
313 |
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
|
314 |
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
|
315 |
) |
433 | 316 |
{ |
317 |
ec_datagram_t *datagram = fsm->datagram; |
|
318 |
||
319 |
// initiate write operation |
|
320 |
ec_datagram_npwr(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
|
321 |
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
|
322 |
// + enable write access |
433 | 323 |
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
|
324 |
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
|
325 |
memset(datagram->data + 4, 0x00, 2); |
433 | 326 |
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
|
327 |
|
755
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
328 |
#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
|
329 |
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
|
330 |
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
|
331 |
#endif |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
332 |
|
505
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
333 |
fsm->retries = EC_FSM_RETRIES; |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
334 |
fsm->state = ec_fsm_sii_state_write_check; |
433 | 335 |
} |
336 |
||
337 |
/*****************************************************************************/ |
|
338 |
||
339 |
/** |
|
340 |
SII state: WRITE CHECK. |
|
341 |
*/ |
|
342 |
||
754
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
343 |
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
|
344 |
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
|
345 |
) |
433 | 346 |
{ |
347 |
ec_datagram_t *datagram = fsm->datagram; |
|
348 |
||
637
d5d04c868e0e
Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents:
600
diff
changeset
|
349 |
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
|
350 |
return; |
505
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
351 |
|
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
352 |
if (datagram->state != EC_DATAGRAM_RECEIVED) { |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
353 |
fsm->state = ec_fsm_sii_state_error; |
594
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
354 |
EC_ERR("Failed to receive SII write datagram for slave %i" |
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
355 |
" (datagram state %i).\n", |
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
356 |
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
|
357 |
return; |
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
358 |
} |
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->working_counter != 1) { |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
361 |
fsm->state = ec_fsm_sii_state_error; |
713
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
362 |
EC_ERR("Reception of SII write datagram failed on slave %i: ", |
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
363 |
fsm->slave->ring_position); |
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
364 |
ec_datagram_print_wc_error(datagram); |
433 | 365 |
return; |
366 |
} |
|
367 |
||
368 |
fsm->cycles_start = datagram->cycles_sent; |
|
369 |
fsm->check_once_more = 1; |
|
370 |
||
755
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
371 |
// issue check datagram |
433 | 372 |
ec_datagram_nprd(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
|
373 |
fsm->retries = EC_FSM_RETRIES; |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
374 |
fsm->state = ec_fsm_sii_state_write_check2; |
433 | 375 |
} |
376 |
||
377 |
/*****************************************************************************/ |
|
378 |
||
379 |
/** |
|
380 |
SII state: WRITE CHECK 2. |
|
381 |
*/ |
|
382 |
||
754
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
383 |
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
|
384 |
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
|
385 |
) |
433 | 386 |
{ |
387 |
ec_datagram_t *datagram = fsm->datagram; |
|
388 |
||
637
d5d04c868e0e
Removed ecrt_master_run(), removed datagram queueing from state
Florian Pose <fp@igh-essen.com>
parents:
600
diff
changeset
|
389 |
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
|
390 |
return; |
505
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
391 |
|
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
392 |
if (datagram->state != EC_DATAGRAM_RECEIVED) { |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
393 |
fsm->state = ec_fsm_sii_state_error; |
594
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
394 |
EC_ERR("Failed to receive SII write check datagram from slave %i" |
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
395 |
" (datagram state %i).\n", |
07dd2a7df66e
Added datagram state to "Failed to receive..." messages.
Florian Pose <fp@igh-essen.com>
parents:
505
diff
changeset
|
396 |
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
|
397 |
return; |
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
398 |
} |
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
399 |
|
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
400 |
if (datagram->working_counter != 1) { |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
401 |
fsm->state = ec_fsm_sii_state_error; |
713
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
402 |
EC_ERR("Reception of SII write check datagram failed on slave %i: ", |
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
403 |
fsm->slave->ring_position); |
ae41cadd25b6
Better handling of unexpected working counters; introduced
Florian Pose <fp@igh-essen.com>
parents:
637
diff
changeset
|
404 |
ec_datagram_print_wc_error(datagram); |
433 | 405 |
return; |
406 |
} |
|
407 |
||
755
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
408 |
#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
|
409 |
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
|
410 |
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
|
411 |
#endif |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
412 |
|
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
413 |
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
|
414 |
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
|
415 |
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
|
416 |
return; |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
417 |
} |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
418 |
|
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
419 |
/* 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
|
420 |
* wait a few ms for the write operation to complete. */ |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
421 |
if (datagram->cycles_received - fsm->cycles_start |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
422 |
< (cycles_t) EEPROM_INHIBIT * cpu_khz) { |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
423 |
#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
|
424 |
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
|
425 |
#endif |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
426 |
// 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
|
427 |
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
|
428 |
return; |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
429 |
} |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
430 |
|
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
431 |
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
|
432 |
// write operation busy bit |
433 | 433 |
// still busy... timeout? |
434 |
if (datagram->cycles_received |
|
755
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
435 |
- fsm->cycles_start >= (cycles_t) EEPROM_TIMEOUT * cpu_khz) { |
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
436 |
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
|
437 |
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
|
438 |
} else { |
433 | 439 |
EC_ERR("SII: Write timeout.\n"); |
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
440 |
fsm->state = ec_fsm_sii_state_error; |
433 | 441 |
return; |
442 |
} |
|
443 |
} |
|
444 |
||
755
178353fc47e5
SII writing workaround for some slaves, that don't respond correctly;
Florian Pose <fp@igh-essen.com>
parents:
754
diff
changeset
|
445 |
// issue check datagram again |
505
bc443ca0077f
State machines re-send datagrams on timeout.
Florian Pose <fp@igh-essen.com>
parents:
435
diff
changeset
|
446 |
fsm->retries = EC_FSM_RETRIES; |
433 | 447 |
return; |
448 |
} |
|
449 |
||
450 |
if (EC_READ_U8(datagram->data + 1) & 0x40) { |
|
451 |
EC_ERR("SII: Write operation failed!\n"); |
|
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
452 |
fsm->state = ec_fsm_sii_state_error; |
433 | 453 |
return; |
454 |
} |
|
455 |
||
456 |
// success |
|
753
7ba5f9cd8f7e
Renamed sii state functions.
Florian Pose <fp@igh-essen.com>
parents:
713
diff
changeset
|
457 |
fsm->state = ec_fsm_sii_state_end; |
433 | 458 |
} |
459 |
||
460 |
/*****************************************************************************/ |
|
461 |
||
462 |
/** |
|
463 |
State: ERROR. |
|
464 |
*/ |
|
465 |
||
754
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
466 |
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
|
467 |
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
|
468 |
) |
433 | 469 |
{ |
470 |
} |
|
471 |
||
472 |
/*****************************************************************************/ |
|
473 |
||
474 |
/** |
|
475 |
State: END. |
|
476 |
*/ |
|
477 |
||
754
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
478 |
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
|
479 |
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
|
480 |
) |
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
481 |
{ |
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
482 |
} |
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
483 |
|
0b47b49c5976
Changed unit of ec_eeprom_write_request_t from word to byte.
Florian Pose <fp@igh-essen.com>
parents:
753
diff
changeset
|
484 |
/*****************************************************************************/ |