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gerrit.openbmc.org / openbmc / phosphor-power / 1992083a94b09bcdd59f806722519af0e124143f
commit1992083a94b09bcdd59f806722519af0e124143f[log] [tgz]
authorJim Wright <jlwright@us.ibm.com>Wed Aug 25 11:13:56 2021 -0500
committerShawn McCarney <shawnmm@us.ibm.com>Fri Aug 27 15:13:40 2021 +0000
tree33a6f20dc212ddbce5dbfa200b1c7fba448487c7
parentfa23f7d1016d388cf531d186046b16efee4465a1 [diff]
pseq: Add power control dbus server interface

Add the PowerInterface class which provides a server interface for the
"org.openbmc.control.Power" dbus service.

Update meson.build file to support.

The "org.openbmc.control.Power" interface is currently used by the
Chassis component to control power on and off as well as by a number of
other OBMC applications which use the pgood property and associated
signals to determine the power state of the system.  Some desire to
move to a "xyz.openbmc_project.control.Power" interface has been
expressed.  The following is a proposed plan to accomplish this:
1. Create a compatible "org.openbmc.control.Power" application (this
   commit).
2. Add "xyz..." interface to this application (future commit).
3. Begin transition of existing applications to new interface (future
   commits).

Signed-off-by: Jim Wright <jlwright@us.ibm.com>
Change-Id: Ia9a6bbb58b5e439623d3931426cb91cb8948da7a
3 files changed
tree: 33a6f20dc212ddbce5dbfa200b1c7fba448487c7
  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. test/
  11. tools/
  12. .clang-format
  13. .gitignore
  14. .shellcheck
  15. argument.hpp
  16. device.hpp
  17. device_monitor.hpp
  18. elog-errors.hpp
  19. file_descriptor.hpp
  20. gpio.cpp
  21. gpio.hpp
  22. LICENSE
  23. MAINTAINERS
  24. meson.build
  25. meson_options.txt
  26. names_values.hpp
  27. pmbus.cpp
  28. pmbus.hpp
  29. README.md
  30. types.hpp
  31. utility.cpp
  32. 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 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",
  }