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In practice mapping multiple CAN signals from the LIN polling to a
smaller number of VIS signals does not work well with the behavior
of the CAN feeder from KUKSA.val when testing on the actual demo
hardware. To improve the behavior:
- update the VSS schema overlay and DBC feeder mapping configuration
to use new AGL custom steering wheel switch signals instead of the
previous signals and mappings.
- add a patch to the DBC feeder to add a per-target duplicate signal
filtering option, and enable it for all the steering wheel signals
in the mapping configuration.
The DBC feeder performance issues stemming from synchronous VIS server
updates will be discussed with upstream, but these changes should
yield behavior similar to the previous combination of the low-can and
signal-composer bindings. With respect to the switch signals, this
should be revisited if implementing a custom LIN signal feeder becomes
an option, as overall it would be better to leverage the standard VSS
schema signals if possible.
Bug-AGL: SPEC-4405
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ifd62161f18303717ee279e23f46000324ab77dbc
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Add kuksa-dbc-feeder-sllin recipe to install systemd unit and
configuration file to run a second copy of the KUKSA.val DBC
feeder against the demo setup's sllin0 interface. The systemd
unit will bring up the sllin0 interface by a call to the
can-dev-helper.sh script if run on hardware that lacks the
LIN adapter. Additionally, the DBC feeder mapping configuration
has been updated with the mappings for the steering wheel LIN
events, and kuksa-dbc-feeder-sllin has been added to the
agl-demo-preload packagegroup for the full AGL demo setup.
Bug-AGL: SPEC-4405
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ief38c4dcccda899cdef24881b292928e607dda14
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The initial check-in of agl-vcar.dbc used with the kuksa-dbc-feeder
recipe was a version with the steering wheel events incorrectly
defined, update it with a corrected copy.
Bug-AGL: SPEC-4405
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I5c84d381c2652a1b5e9f06614f52c6d02b1998c0
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Add a kuksa-dbc-feeder recipe to build the sample CAN feeder for the
KUKSA.val Vehicle Information Service (VIS) server and add it to the
agl-demo-platform image by adding it to packagegroup-agl-ivi-services.
Local patches are applied to enable building with OpenEmbedded, make
installation into standard Linux FHS locations feasible, and improve
usability on target with respect to logging and error handling.
These will be discussed with upstream to hopefully get them
integrated.
Additional changes:
- Add a recipe for the required kuksa-viss-client Python module
included with the KUKSA.val source tree. The module is also
available via pypi.org, but keeping all the pieces in lockstep for
now seems better, so it is built out of a clone of the kuksa.val
repo using the same SRCREV as the server and kuksa-dbc-feeder.
- Add new recipes for required Python modules:
python3-argparse-addons, python3-can-j1939,
python3-py-expression-eval, python3-setuptools-git-versioning
These will be upstreamed to meta-python as time permits.
- Add bbappend for python3-cantools to add a missing runtime
dependencies discovered during testing. This will be addressed
upstream in meta-python as time permits.
- Add minimal DBC file and mapping configuration. At present the
agl-vcar.dbc file only contains the minimum message definitions
known to be required for the AGL demo platform, namely vehicle
and engine speeds and the steering wheel events.
- Add can-dev-helper recipe to install a systemd unit and script to
ensure a CAN interface is available for testing. This is a tweaked
version of what was previously used with agl-service-can-low-level.
Bug-AGL: SPEC-4405
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ic48ea71761fe3767ca3c1711c60b47e0d329d9e7
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Scott Murray