NEWS
author Florian Pose <fp@igh-essen.com>
Tue, 19 Feb 2008 08:22:20 +0000
changeset 792 3778920f61e4
parent 790 9cb6c6217042
child 799 068a58b96965
permissions -rw-r--r--
Implemented most realtime interface changes for version 1.4, improved
ec_pdo_t and ec_pdo_entry_t classes, added fmmu_config_t, adjusted
minimal example, etc...
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$Id$
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* Realtime interface changes:
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    - Replaced ec_slave_t with ec_slave_config_t, separating the slave objects
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      from the requested bus configuration. Therefore, renamed
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      ecrt_master_get_slave() to ecrt_master_slave_config().
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    - Replaced slave address string with alias and position values. See
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      ecrt_master_slave_config().
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    - Removed ecrt_master_get_slave_by_pos(), because it is no longer
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      necessary (alias/position, slave configurations).
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    - Added ec_slave_config_state_t for the new method
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      ecrt_slave_config_state().
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    - Process data memory for a domain can now be allocated externally. This
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      offers the possibility to use a shared-memory-region. Therefore,
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      added the domain methods ecrt_domain_size() and ecrt_domain_memory().
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    - Replaced the process data pointers in the Pdo entry registration
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      functions with a process data offset, that is now returned by
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      ecrt_domain_reg_pdo_entry(). This was necessary for the external
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      domain memory. An additional advantage is, that the returned offset value
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      is directly usable.
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    - Replaced ecrt_slave_pdo_mapping/add/clear() with
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      ecrt_slave_config_mapping() that is now able to specify Pdo mapping and
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      Pdo configuration. Pdo entries mapped in this way can now immediately be
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      registered. The Pdo mapping and the configuration are described with the
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      new data types ec_pdo_info_t and ec_pdo_entry_info_t.
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    - Renamed ec_bus_status_t, ec_master_status_t to ec_bus_state_t and
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      ec_master_state_t, respectively. Renamed ecrt_master_get_status() to
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      ecrt_master_state(), for consistency reasons.
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    - Added ec_domain_state_t and ec_wc_state_t for a new output parameter
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      of ecrt_domain_state().
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    - Former "Pdo registration" meant Pdo entry registration in fact, therefore
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      renamed ec_pdo_reg_t to ec_pdo_entry_reg_t and ecrt_domain_register_pdo()
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      to ecrt_domain_reg_pdo_entry().
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    - Removed ecrt_domain_register_pdo_range(), because it's functionality can
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      be reached by specifying an explicit Pdo mapping and registering those
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      Pdo entries.
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* Added 8139too driver for kernel 2.6.22, thanks to Erwin Burgstaller.
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* Added e1000 driver for kernel 2.6.22.
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* Allow gaps in PDO mapping read from CoE.
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* Fixed bug in CoE code.
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* Improved handling of large EEPROM contents.
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Changes in version 1.3.2:
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* New feature: Read dynamic PDO mapping from SDO dictionary.
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* Implemented SII writing workaround for some broken slaves.
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* Improved handling for spontaneous AL state changes.
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* Master takes mailbox sync manager configurations from EEPROM words
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  0x0018-0x001b, if no sync manager configurations are provided.
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* Calculate checksum when writing EEPROM or alias address.
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* Fixed source MAC address setting bug.
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* Removed config.kbuild and replaced Kbuild files by Kbuild.in files.
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Changes in version 1.3.1:
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* Improved EoE handling: Avoided skipping of datagrams and release lock
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  while processing.
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* Added some statistics to the datagram structure.
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* Master state machine clears all station addresses with a broadcast datagram
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  before setting them.
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* Added --enable-eoe conditional.
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* Minor extensions of the master info file.
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* Improved handling of unexpected working counters.
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* Create network interfaces for EoE devices with alias as eoeXaY.
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* Fixed problems on big-endian systems.
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* Added documentation on how to set up an EoE network.
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Changes in version 1.3.0:
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* Added Intel PRO/1000 Gigabit Ethernet driver (e1000).
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* Added testing version of Intel PRO/100 Ethernet driver (e100).
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* Added testing version of NVIDIA nForce Ethernet driver (forcedeth).
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* Removed "ec_eoeif_count" master module parameter. EoE handlers are created
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  dynamically instead.
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* Added "main" and "backup" parameters to master module to hand over the
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  MAC addresses of the devices to wait for. This made the ec_device_index
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  parameter of the Ethernet drivers obsolete. The broadcast MAC address means,
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  that the master accepts the first device offered by any Ethernet driver.
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* Changed format of sysconfig file and accordingly adjusted functionality
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  of the init script to handle the above MAC address lists.
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* Realtime interface changes:
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  - ecrt_master_run() became obsolete, because the master state machine is now
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    run in process context.
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  - Parameter changes in PDO registration functions ecrt_domain_register_pdo()
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    and ecrt_register_pdo_range(): Replaced slave_address, vendor ID and
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    product code arguments with a slave pointer, which has to be obtained with
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    a prior call to ecrt_master_get_slave().
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  - ecrt_master_get_slave() got additional parameters to check for vendor ID
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    and product code.
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  - Removed addressing scheme "X:Y" for ecrt_master_get_slave().
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  - Added ecrt_master_get_slave_by_pos() to avoid the string handling of
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    ecrt_master_get_slave().
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  - Added ecrt_master_get_status() to get status information about the bus.
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  - Added functions to set up an alternative PDO mapping for a slave, i. e.
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    ec_slave_pdo_mapping_clear(), ec_slave_pdo_mapping_add() and
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    ec_slave_pdo_mapping().
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* Device interface changes:
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  - Replaced ecdev_register() and ecdev_unregister() with ecdev_offer() and
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    ecdev_withdraw(), respectively. The device modules now offer all their
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    devices to the master. The master then decides, which ones to register.
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  - Replaced ecdev_link_state() with ecdev_set_link(); added ecdev_get_link().
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* All EEPROM write operations from user space are now blocking until
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  writing has finished. Appropriate error codes are returned.
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* Implemented setting of the "Secondary slave address" (alias) via sysfs.
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* Implemented SDO reading in operation mode via sysfs.
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* Removed annoying eeprom_write_enable file. EEPROM writing always enabled.
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* Slave configuration is now done exclusively from the master thread. Removed
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  ec_master_sync_io(). Userspace threads are now waiting for events in the
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  state machine.
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* Master state machine scheduled with timeout if idle, otherwise is executed
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  as fast as possible (with schedule()).
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* Added dummy module for simulation purposes.
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* Limited infinite EEPROM reading, if 0xffff limiter word is missing.
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* Init script works now properly on non-SUSE distros (no rc.status dependency
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  any more).
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* Removed EtherCAT line comments from 8139too drivers.
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-------------------------------------------------------------------------------
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Changes in version 1.2.0:
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* Several fixes of bugs and stability issues. Master should now run fine
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  with kernels 2.6.17 to 2.6.19.
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* Realtime interface changes:
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  - Re-introduced ecrt_domain_queue() to allow datagram queuing apart
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    from datagram processing. The queuing of a domain's datagrams is not
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    done in ecrt_domain_process() any more!
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  - Removed ecrt_master_deactivate(). Its functionality was moved into
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    ecrt_master_release().
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  - Removed ecrt_master_prepare(). Its functionality was moved into
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    ecrt_master_activate().
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  - Renamed ecdev_start() and ecdev_stop() to ecdev_open() and ecdev_close().
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    These two functions now take a pointer to ec_device_t as their arguments.
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  - The data_ptr parameter of ecrt_domain_register_pdo(),
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    ecrt_domain_register_pdo_list() and ecrt_domain_register_pdo_range() may
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    not be NULL any more.
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  - Removed ecrt_slave_pdo_size(). This function was deprecated long before.
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  - Introduced ECRT_VERSION_MAGIC macro and ecrt_version_magic() function.
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* Device interface changes:
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  - ec_isr_t was replaced by ec_pollfunc_t, the device driver has to supply
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    a poll function to call its ISR. This was introduced because some network
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    drivers' interrupt functions have different arguments.
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* State machines now try to re-send datagrams on datagram timeout.
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* New option -c of the lsec script, displays slave current consumptions and
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  remaining current.
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* Added frame counter in master info file.
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-------------------------------------------------------------------------------
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Changes in version 1.1.1:
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479
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* State change FSM: Clearing of sync managers before PREOP.
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* Added modules_install make target.
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* Device modules for kernel 2.6.17.
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* SDO configurations available in Sysfs.
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* FMMU configurations cleared when going to INIT.
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* Slave-specific logs only at debug level 1 (for large buses).
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* Slave flags (error, online) available in Sysfs.
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* Acknowledging of spontaneous state changes in master FSMs.
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* ecrt_master_deactivate() deprecated.
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* Persistent slave lists. Slave structures are only regenerated on topology
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  change in IDLE mode.
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* SDO reading via Sysfs.
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* Added ecrt_domain_register_pdo_range()
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* Fetching of SDO dictionary.
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* Better timing behaviour when starting up under high CPU load.
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* Applied Autotools.
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* Improved output of lsec.
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* SDO download state machine.
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-------------------------------------------------------------------------------
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Changes in version 1.1:
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* Improved realtime interface.
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-------------------------------------------------------------------------------