60 lines
1.3 KiB
Python
60 lines
1.3 KiB
Python
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#
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# psuutil.py
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# Platform-specific PSU status interface for SONiC
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#
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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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def get_num_psus(self):
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return 4
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def get_psu_status(self, index):
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if index < 1 or index > 4:
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return False
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path_tmp = "/sys/devices/pci0000:00/0000:00:1f.0/psu_status_"
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psu_path = "%s%d"%(path_tmp, index)
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try:
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data = open(psu_path, "rb")
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except IOError:
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return False
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result = int(data.read(2), 16)
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data.close()
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if (result & 0x2):
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return True
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return False
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def get_psu_presence(self, index):
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if index < 1 or index > 4:
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return False
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path_tmp = "/sys/devices/pci0000:00/0000:00:1f.0/psu_status_"
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psu_path = "%s%d"%(path_tmp, index)
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try:
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data = open(psu_path, "rb")
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except IOError:
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return False
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result = int(data.read(2), 16)
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data.close()
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if (result & 0x1) == 0:
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return True
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return False
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