60 lines
1.8 KiB
Python
60 lines
1.8 KiB
Python
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import os.path
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try:
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from sonic_psu.psu_base import PsuBase
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except ImportError as e:
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raise ImportError(str(e) + "- required module not found")
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class PsuUtil(PsuBase):
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"""Platform-specific PSUutil class"""
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def __init__(self):
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PsuBase.__init__(self)
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self.psu_path = "/sys/devices/platform/e1031.smc/"
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self.psu_presence = "psu{}_prs"
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self.psu_oper_status = "psu{}_status"
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def get_num_psus(self):
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"""
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Retrieves the number of PSUs available on the device
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:return: An integer, the number of PSUs available on the device
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"""
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return 2
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def get_psu_status(self, index):
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"""
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Retrieves the oprational status of power supply unit (PSU) defined by 1-based index <index>
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:param index: An integer, 1-based index of the PSU of which to query status
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:return: Boolean, True if PSU is operating properly, False if PSU is faulty
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"""
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psu_location = ["R", "L"]
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status = 0
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try:
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with open(self.psu_path + self.psu_oper_status.format(psu_location[index - 1]), 'r') as power_status:
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status = int(power_status.read())
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except IOError:
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return False
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return status == 1
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def get_psu_presence(self, index):
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"""
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Retrieves the presence status of power supply unit (PSU) defined by 1-based index <index>
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:param index: An integer, 1-based index of the PSU of which to query status
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:return: Boolean, True if PSU is plugged, False if not
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"""
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psu_location = ["R", "L"]
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status = 0
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try:
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with open(self.psu_path + self.psu_presence.format(psu_location[index - 1]), 'r') as psu_prs:
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status = int(psu_prs.read())
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except IOError:
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return False
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return status == 1
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