sonic-buildimage/device/delta/x86_64-delta_et-6248brb-r0/plugins/psuutil.py

56 lines
1.4 KiB
Python
Raw Normal View History

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 = "/sys/devices/platform/delta-et6248brb-gpio.0/PSU/psu{}_pg"
self.psu_oper_status = "in1_input"
self.psu_presence = "/sys/devices/platform/delta-et6248brb-gpio.0/PSU/psu{}_pres"
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):
if index is None:
return False
try:
reg_file = open(self.psu_path.format(index))
except IOError as e:
print "Error: unable to open file: %s" % str(e)
return False
if int(reg_file.readline()) == 1:
return True
return False
def get_psu_presence(self, index):
if index is None:
return False
try:
reg_file = open(self.psu_presence.format(index))
except IOError as e:
print "Error: unable to open file: %s" % str(e)
return False
if int(reg_file.readline()) == 0:
return True
return False