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$Id$

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Changes in version 1.4.0:

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* Added 8139too driver for kernel 2.6.22, thanks to Erwin Burgstaller.

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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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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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Changes in version 1.1.1:

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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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Changes in version 1.1:

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* Improved realtime interface.

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