65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
#!/usr/bin/env python
|
|
|
|
#############################################################################
|
|
# Mellanox
|
|
#
|
|
# Module contains an implementation of SONiC PSU Base API and
|
|
# provides the PSUs status which are available in the platform
|
|
#
|
|
#############################################################################
|
|
|
|
import os.path
|
|
|
|
try:
|
|
from sonic_psu.psu_base import PsuBase
|
|
except ImportError as e:
|
|
raise ImportError (str(e) + "- required module not found")
|
|
|
|
class PsuUtil(PsuBase):
|
|
"""Platform-specific PSUutil class"""
|
|
|
|
def __init__(self):
|
|
PsuBase.__init__(self)
|
|
|
|
self.psu_path = "/bsp/module/"
|
|
self.psu_presence = "psu{}_status"
|
|
self.psu_oper_status = "psu{}_pwr_status"
|
|
|
|
def get_num_psus(self):
|
|
"""
|
|
Retrieves the number of PSUs available on the device
|
|
|
|
:return: An integer, the number of PSUs available on the device
|
|
"""
|
|
return 2
|
|
|
|
def get_psu_status(self, index):
|
|
"""
|
|
Retrieves the oprational status of power supply unit (PSU) defined
|
|
by 1-based index <index>
|
|
|
|
:param index: An integer, 1-based index of the PSU of which to query status
|
|
:return: Boolean, True if PSU is operating properly, False if PSU is faulty
|
|
"""
|
|
if index is None:
|
|
return False
|
|
|
|
status = 0
|
|
try:
|
|
with open(self.psu_path + self.psu_oper_status.format(index), 'r') as power_status:
|
|
status = int(power_status.read())
|
|
except IOError:
|
|
return False
|
|
|
|
return status == 1
|
|
|
|
def get_psu_presence(self, index):
|
|
"""
|
|
Retrieves the presence status of power supply unit (PSU) defined
|
|
by 1-based index <index>
|
|
|
|
:param index: An integer, 1-based index of the PSU of which to query status
|
|
:return: Boolean, True if PSU is plugged, False if not
|
|
"""
|
|
return isinstance(index, int) and index > 0 and index <= self.get_num_psus()
|