is killed out of the blue)
Add return value to controller_block_add() and add a check to the
blocks for its value.

is killed out of the blue)
Add return value to controller_block_add() and add a check to the
blocks for its value.

This way we can use one function to set a number of params. All blocks
(including the il2c generator) have been updated with the extra argument.

	modified:   Makefile
	modified:   controller/am335x/block_am335x_adc.c
	modified:   controller/am335x/block_am335x_pwm.c
	modified:   controller/am335x/block_am335x_qed.c
	modified:   controller/block/block_bridge_pwm.c
	modified:   controller/block/block_counter.c
	modified:   controller/block/block_filter_iir.c
	modified:   controller/block/block_filter_lp.c
	modified:   controller/block/block_friction.c
	modified:   controller/block/block_gain.c
	modified:   controller/block/block_inverse_proportional.c
	modified:   controller/block/block_limit.c
	modified:   controller/block/block_limit_2nd.c
	modified:   controller/block/block_limit_var.c
	modified:   controller/block/block_matrix_2x2.c
	modified:   controller/block/block_pid.c
	modified:   controller/block/block_pid_aw.c
	modified:   controller/block/block_quantize.c
	modified:   controller/block/block_rangecheck.c
	modified:   controller/block/block_servo_state.c
	modified:   controller/block/block_setpoint_generator_1d.c
	modified:   controller/block/block_setpoint_generator_3d.c
	modified:   controller/block/block_sine.c
	modified:   controller/block/block_state_machine.c
	modified:   controller/block/block_trajectplayer.c
	modified:   controller/block/block_trigger.c
	modified:   controller/block/block_value.c
	modified:   controller/block/block_value_bool.c
	modified:   controller/block/block_value_uint32.c
	modified:   controller/block/il2c/il2c.c
	modified:   controller/controller/controller_block.h
	modified:   controller/controller/controller_block_param.c
	modified:   controller/dt_azimuth/dt_az_safety.c
	modified:   controller/dt_elevation/dt_el_safety.c
	modified:   controller/ec/block_beckhoff_el2xxx.c
	modified:   controller/ec/block_beckhoff_el3xxx.c
	modified:   controller/ec/block_beckhoff_el4xxx.c
	modified:   controller/ec/block_ec.c
	modified:   controller/ec/block_ec_sim.c
	modified:   controller/test/block_test_command.c
	modified:   controller/test/block_test_input_bool.c
	modified:   controller/test/block_test_input_float.c
	modified:   controller/test/block_test_input_uint32.c
	modified:   controller/test/block_test_output_bool.c
	modified:   controller/test/block_test_output_float.c
	modified:   controller/test/block_test_output_uint32.c

actually work again after the introduction of the BLOCK_CREATE() macro.

	modified:   controller/ec/block_beckhoff_el4xxx.c

Add realloc function to controller_mem
Move reallocs in blocks to new controller_mem functions
Add test case for block_state_machine.

Als add parameter description and check to parameter lists.

Blocks can now check the number of arguments before parsing them.

	modified:   controller/ec/block_beckhoff_el4xxx.c

Add scale values for all other variants and add where the info came from. It
is evident that Beckhoff has published errors in this data, see the comments
in the code. That is why all these entries will remain 'unverified'.

	modified:   controller/ec/block_beckhoff_el4xxx.c

Give the driver a higher chance of actually detecting EL40[1/2]* blocks. The
product IDs were off.

	modified:   controller/ec/block_beckhoff_el4xxx.c

Fix table values for the EL400[1/2/4]. Since I only have the EL4004 to verify
the code, leave the EL400[1/2] 'unverified' for now. (The values are correct
according to Beckhoff documentation, but I can't test if these blocks also
work with the syncmanager change.)

	modified:   controller/ec/block_beckhoff_el4xxx.c

Oops. Fix missing argument.

	modified:   controller/ec/block_beckhoff_el4xxx.c

Make the initialization of the block actually work. The block offers two DC
configurations and at this moment, the ec code picks the second configuration
and probably forgets to select it in the right CoE register at this moment.
At this moment we asume all EL4xxx blocks need this fix. We could be wrong
about that. Leave all 'driver_verified' bits except for the EL4008 disabled'
for now.

	modified:   controller/ec/block_beckhoff_el4xxx.c

The device type table has a big number of off-by-one and off-by-a-lot errors.
Disable support for all blocks for now that haven't been explicitly tested and
verified to work correctly.

	modified:   controller/ec/block_beckhoff_el4xxx.c

Remove copy/pasto. The EL400* blocks were in the table twice.

	modified:   controller/ec/block_beckhoff_el4xxx.c

Fix the driver for the EL4008. The values we output to it should be limited to
32767, not 4096.

Add poll function to canopen device
Remove poll thread from esc_coe

Use controller bus callbacks at sample initialization

Add hook for additional actions during pre-operational.
Prevent double registrations as bus client

Split esc (ethercat slave controller) code into seperate modules.
Add code to read SII eeprom of esc devices and use it for
device initialization.
Add per device thread for monitoring/recovery of devices.

Mostly ethercat related in the ec directory.