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gerrit.openbmc.org / openbmc / phosphor-virtual-sensor / e667239d5a57ee3599c6378839e7858a545ae275
commite667239d5a57ee3599c6378839e7858a545ae275[log] [tgz]
authorPatrick Williams <patrick@stwcx.xyz>Fri Sep 02 09:03:24 2022 -0500
committerPatrick Williams <patrick@stwcx.xyz>Fri Sep 02 09:03:26 2022 -0500
treed3ae8689f297b3210b6f0c1e3c6f4c7687644c3e
parent7e295e295ee7165592a33a1d624b2c068cfeca44 [diff]
remove dependency on sdeventplus

This repository doesn't really use sdeventplus, other than for
running the dbus-loop, but there is already trivial code in
sdbusplus for that.  Simplify and remove the dependency.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I8af7ad87a4fd87df400e810941fe58e412aedb24
3 files changed
tree: d3ae8689f297b3210b6f0c1e3c6f4c7687644c3e
  1. subprojects/
  2. .clang-format
  3. .editorconfig
  4. .gitignore
  5. .markdownlint.yaml
  6. .prettierrc.yaml
  7. dbusSensor.hpp
  8. dbusUtils.hpp
  9. exprtkTools.hpp
  10. LICENSE
  11. meson.build
  12. OWNERS
  13. phosphor-virtual-sensor.service.in
  14. README.md
  15. thresholds.hpp
  16. virtual_sensor_config.json
  17. virtualSensor.cpp
  18. virtualSensor.hpp
README.md

phosphor-virtual-sensor

phosphor-virtual-sensor reads in virtual_sensor_config.json There are two types of data in this file:

virtual sensor configuration information

See virtual_sensor_config.json in this repository for an example. Sensors added this way can use any expression that is accepted by exprtk.

information to get a virtual sensor configuraton from D-Bus

For example:

{
  "Desc": {
    "Config": "D-Bus",
    "Type": "ModifiedMedian"
  }
}

Sensors added this way can only use a set of restricted calculations. At this stage the only type supported is modifiedMedian.

The virtual sensor configuration information needs to be added into the relevant hardware configuration file in entity-manager. This method of adding a virtual sensor allows a recipe that builds for different hardware configurations to have different virtual sensors for each configuration.

The virtual sensor configuration in entity manager follows a different format to the JSON in virtual_sensor_config.json (specified in entity-manager/schemas/VirtualSensor.json).