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gerrit.openbmc.org / openbmc / phosphor-power / 068f8073da127f5039d946e9e090390493f651fe
commit068f8073da127f5039d946e9e090390493f651fe[log] [tgz]
authorShawn McCarney <shawnmm@us.ibm.com>Fri Oct 31 10:44:11 2025 -0500
committerShawn McCarney <shawnmm@us.ibm.com>Tue Nov 18 13:33:00 2025 -0600
tree98fe634ceefdc797f2f3fa9289686dbc7ecf8420
parent8a8a68013fe7e97fecda5a915ed379f554f3dd13 [diff]
pseq: Create System class

Create a C++ System class that corresponds to the entire system being
controlled by the BMC.

Eventually more function will be added to this class, but for the
initial version only implement the required support for storing the
chassis objects from the JSON config file.

Create automated test cases for the new class.

Tested:
* Ran automated test cases.

Change-Id: I90b05acb3d17558b4b518c88b45d3d5825165a2a
Signed-off-by: Shawn McCarney <shawnmm@us.ibm.com>
3 files changed
tree: 98fe634ceefdc797f2f3fa9289686dbc7ecf8420
  1. cold-redundancy/
  2. example/
  3. org/
  4. phosphor-chassis-power/
  5. phosphor-power-sequencer/
  6. phosphor-power-supply/
  7. phosphor-regulators/
  8. power-sequencer/
  9. power-supply/
  10. services/
  11. subprojects/
  12. test/
  13. tools/
  14. .clang-format
  15. .clang-tidy
  16. .clang-tidy-ignore
  17. .gitignore
  18. .shellcheck
  19. compatible_system_types_finder.cpp
  20. compatible_system_types_finder.hpp
  21. dbus_interfaces_finder.cpp
  22. dbus_interfaces_finder.hpp
  23. device.hpp
  24. device_monitor.hpp
  25. elog-errors.hpp
  26. file_descriptor.hpp
  27. format_utils.hpp
  28. gpio.cpp
  29. gpio.hpp
  30. LICENSE
  31. meson.build
  32. meson.options
  33. names_values.hpp
  34. OWNERS
  35. pmbus.cpp
  36. pmbus.hpp
  37. README.md
  38. temporary_file.cpp
  39. temporary_file.hpp
  40. temporary_subdirectory.cpp
  41. temporary_subdirectory.hpp
  42. types.hpp
  43. utility.cpp
  44. utility.hpp
README.md

phosphor-power

Overview

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

Actively-maintained applications:

  • cold-redundancy: Application that makes power supplies work in Cold Redundancy mode and rotates them at intervals.
  • phosphor-chassis-power: JSON-driven application that monitors chassis power on multi-chassis systems.
  • phosphor-power-sequencer: JSON-driven application that powers the chassis on/off and monitors the power sequencer device.
  • phosphor-power-supply: Next generation power supply monitoring application.
  • phosphor-regulators: JSON-driven application that configures and monitors voltage regulators.
  • tools/power-utils: Power supply utilities.

Legacy applications:

  • power-sequencer: Original power sequencer monitoring application.
  • power-supply: Original power supply monitoring application.

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/<driver>.<instance>/
    • 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",
  }