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gerrit.openbmc.org / openbmc / phosphor-power / 98f429474bde8dbcf0d536ca1b1f07507de399a3
commit98f429474bde8dbcf0d536ca1b1f07507de399a3[log] [tgz]
authorShawn McCarney <shawnmm@us.ibm.com>Fri May 24 17:24:32 2024 -0500
committerShawn McCarney <shawnmm@us.ibm.com>Sat May 25 02:29:07 2024 -0500
tree673434d9e3b07087fc613aa9c9095ba4c8af4c51
parent3a11d6328d0bfdbd74bde8ae6d70909560f66030 [diff]
Create class for finding D-Bus interfaces

Create a class for finding instances of D-Bus interfaces.  The class
finds existing instances using the ObjectMapper.  It also finds new
instances using an InterfacesAdded listener.

Tested:
* See test plan at
  https://gist.github.com/smccarney/67d7719f0cf9cea2d134b0796aa408da

Change-Id: Ia6fba9cb69ad73607dc971dd6d63ba2efecabe0d
Signed-off-by: Shawn McCarney <shawnmm@us.ibm.com>
3 files changed
tree: 673434d9e3b07087fc613aa9c9095ba4c8af4c51
  1. cold-redundancy/
  2. example/
  3. org/
  4. phosphor-power-sequencer/
  5. phosphor-power-supply/
  6. phosphor-regulators/
  7. power-sequencer/
  8. power-supply/
  9. services/
  10. subprojects/
  11. test/
  12. tools/
  13. .clang-format
  14. .gitignore
  15. .shellcheck
  16. dbus_interfaces_finder.cpp
  17. dbus_interfaces_finder.hpp
  18. device.hpp
  19. device_monitor.hpp
  20. elog-errors.hpp
  21. file_descriptor.hpp
  22. gpio.cpp
  23. gpio.hpp
  24. LICENSE
  25. meson.build
  26. meson.options
  27. names_values.hpp
  28. OWNERS
  29. pmbus.cpp
  30. pmbus.hpp
  31. README.md
  32. temporary_file.cpp
  33. temporary_file.hpp
  34. temporary_subdirectory.cpp
  35. temporary_subdirectory.hpp
  36. types.hpp
  37. utility.cpp
  38. utility.hpp
README.md

Overview

This repository contains applications for configuring and monitoring devices that deliver power to the system.

  • cold-redundancy: Application that makes power supplies work in Cold Redundancy mode and rotates them at intervals.
  • phosphor-power-sequencer: Applications for configuring and monitoring power sequencer and related devices that support JSON-driven configuration.
  • phosphor-power-supply: Next generation power supply monitoring application.
  • phosphor-regulators: JSON-driven application that configures and monitors voltage regulators.
  • power-sequencer: A power sequencer monitoring application.
  • power-supply: Original power supply monitoring application.
  • tools/power-utils: Power supply utilities.

Build

To build all applications in this repository:

  meson setup build
  ninja -C build

To clean the repository and remove all build output:

  rm -rf build

You can specify meson options to customize the build process. For example, you can specify:

  • Which applications to build and install.
  • Application-specific configuration data, such as power sequencer type.
  • Whether to build tests.

Power Supply Monitor and Util JSON config

Several applications in this repository require a PSU JSON config to run. The JSON config file provides information for:

  • Where to access the pmbus attributes
  • Which attribute file in pmbus maps to which property and interface in D-Bus
  • Which kernel device directory is used on which PSU

There is an example psu.json to describe the necessary configurations.

  • inventoryPMBusAccessType defines the pmbus access type, which tells the service which sysfs type to use to read the attributes. The possible values are:
    • Base: The base dir, e.g. /sys/bus/i2c/devices/3-0069/
    • Hwmon: The hwmon dir, e.g. /sys/bus/i2c/devices/3-0069/hwmon/hwmonX/
    • Debug: The pmbus debug dir, e.g. /sys/kernel/debug/pmbus/hwmonX/
    • DeviceDebug: The device debug dir, e.g. '/sys/kernel/debug/./`
    • HwmonDeviceDebug: The hwmon device debug dir, e.g. /sys/kernel/debug/pmbus/hwmonX/cffps1/
  • fruConfigs defines the mapping between the attribute file and the FRU inventory interface and property. The configuration example below indicates that the service will read part_number attribute file from a directory specified by the above pmbus access type, and assign to PartNumber property in xyz.openbmc_project.Inventory.Decorator.Asset interface.
      "fruConfigs": [
    {
      "propertyName": "PartNumber",
      "fileName": "part_number",
      "interface": "xyz.openbmc_project.Inventory.Decorator.Asset"
    }
  ]
  • psuDevices defines the kernel device dir for each PSU in inventory. The configuration example below indicates that powersupply0's device is located in /sys/bus/i2c/devices/3-0069.
      "psuDevices": {
    "/xyz/openbmc_project/inventory/system/chassis/motherboard/powersupply0" : "/sys/bus/i2c/devices/3-0069",
  }