tree 5bd2749b7c260c406359fea2a0590f6e0f35478e
parent 6d582a8858edfc0173826413ac482fed5c22f862
author Adriana Kobylak <anoo@us.ibm.com> 1647963941 +0000
committer Andrew Geissler <andrew@geissonator.com> 1649292118 +0000

chassis: Monitor the PowerSystemInputs for power status

In addition to the uPower interface, monitor the PowerSystemInputs
interface to detect a Brownout condition. Reference:
https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/48015

Tested: In simulation, trigger a power supply brownout and clear it,
verify that phosphor-chassis-check-power-status detects the condition:

Mar 29 19:02:21 p10bmc phosphor-chassis-state-manager[1101]: Power
System Inputs status changed to
xyz.openbmc_project.State.Decorator.PowerSystemInputs.Status.Fault
Mar 29 19:02:21 p10bmc phosphor-chassis-state-manager[1101]: Power
System Inputs status is in Fault state

root@p10bmc:~# /usr/bin/phosphor-chassis-check-power-status --chassis 0
<3> Chassis power status is not good:
xyz.openbmc_project.State.Chassis.PowerStatus.BrownOut
Mar 29 19:08:20 p10bmc phosphor-chassis-check-power-status[1133]:
Chassis power status is not good:
xyz.openbmc_project.State.Chassis.PowerStatus.BrownOut
Mar 29 19:08:20 p10bmc phosphor-log-manager[319]: Created PEL 0x50000004
(BMC ID 4) with SRC BDA13402
Mar 29 19:08:20 p10bmc phosphor-ledmanager[447]: SAI: FRU path:
/xyz/openbmc_project/inventory/system

Mar 29 19:02:21 p10bmc phosphor-chassis-state-manager[1101]: Power
System Inputs status changed to
xyz.openbmc_project.State.Decorator.PowerSystemInputs.Status.Good
Mar 29 19:02:21 p10bmc phosphor-chassis-state-manager[1101]:
determineStatusOfPSUPower(): Good

root@p10bmc:~# /usr/bin/phosphor-chassis-check-power-status --chassis 0
<6> Chassis power status good, start power on

Change-Id: I6adbb6474155e50219b6a48dd9b2cf872934f4a6
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>