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hal_psu.py
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hal_psu.py
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###############################################################################
#
# Hardware Abstraction Layer APIs -- FAN APIs.
#
# Copyright (C) Alibaba, INC.
#
###############################################################################
"""
class for HAL PSU APIs
API parameters convention:
@param psu_name Name of a PSU, format: "PSU%d" % psu_index, where psu_index is
integer starting from 1
"""
class HalPsu(object):
def __init__(self):
pass
def get_total_number(self):
"""
Get system's total number of PSU
@return Total number of PSU, -1 for failure
"""
pass
def get_presence(self, psu_name):
"""
Get a specific PSU's presence status
@return True if present, False for NOT present or failure
"""
pass
def get_fru_info(self, psu_name):
"""
Get FRU info of a specific PSU
@return dict of the specific PSU's info, None for failure
Example return value(all keys are mandatory)
{
"Name": "PSU1",
"SN": "serial_number_example", # 'N/A'
"PN": "part_number_example", # 'N/A'
"AirFlow": "B2F" # 'N/A'
}
"""
pass
def get_status(self, psu_name):
"""
Get status of a specific PSU
@return dict of the specific PSU's status, None for failure
Example return value(all keys are mandatory)
{
"Name": "PSU1",
"InputType": "DC", # "AC" or 'N/A'
"InputStatus": True, # H/W status bit
"OutputStatus": True # H/W status bit
"FanSpeed": {
"Value": 4000, # -99999
"Min": 2000, # -99999
"Max": 10000 # -99999
},
"Temperature": {
"Value": 40.0, # -99999.0
"Min": -30.0, # -99999.0
"Max": 50.0 # -99999.0
}
}
"""
pass
def get_power_status(self, psu_name):
"""
Get power status of a specific PSU
@return dict of the specific PSU's power status, None for failure
Example return value
{
"Name": "PSU1",
"Inputs": {
"Status": True, # H/W status bit
"Type": "DC", # or "AC" or "N/A"
"Voltage": {
"Value": 220, # -1
"LowAlarm": 200, # -1
"HighAlarm": 240, # -1
"Unit": "V"
},
"Current": {
"Value": 6.0, # -99999.0
"LowAlarm": 0.2, # -99999.0
"HighAlarm": 7.0, # -99999.0
"Unit": "A"
},
"Power": {
"Value": 1000, # -99999
"LowAlarm": -1, # -99999
"HighAlarm": 1400, # -99999
"Unit": "W"
}
},
"Outputs": {
"Status": True,
"Voltage": {
"Value": 220,
"LowAlarm": 200,
"HighAlarm": 240,
"Unit": "V"
},
"Current": {
"Value": 6.0,
"LowAlarm": 0.2,
"HighAlarm": 7.0,
"Unit": "A"
},
"Power": {
"Value": 1000,
"LowAlarm": -1, # Don't care
"HighAlarm": 1400,
"Unit": "W"
}
}
}
"""
pass
def set_psu_fan_speed_pwm(self, psu_name, pwm):
"""
Set a specific PSU's fan's speed
@param pwm duty cycle, unit is 1%
@return 0 for success, -1 for failure
"""
pass
def get_fan_speed_pwm(self, psu_name):
"""
Get a specific PSU's fan's speed
@return pwm duty cycle, unit is 1%, -1 for failure
"""
pass
def get_info_all(self):
"""
Get all system PSU's info
@return dict of all PSUs or None for failure
{
"Number": 2,
"PSU1": {
"SN": "serial_number_example", # 'N/A'
"PN": "part_number_example", # 'N/A'
"AirFlow": "F2B", # 'N/A'
"Present": "yes" # "no"
"FanSpeed": {
"Value": 4000,
"Min": 2000,
"Max": 30000
},
"Temperature": {
"Value": 35.0,
"Min": -20.0,
"Max": 45.0
},
"Inputs": {
"Status": True, # H/W status bit
"Type": "DC", # or "AC"
"Voltage": {
"Value": 220,
"LowAlarm": 200,
"HighAlarm": 240,
"Unit": "V"
},
"Current": {
"Value": 6.0,
"LowAlarm": 0.2,
"HighAlarm": 7.0,
"Unit": "A"
},
"Power": {
"Value": 1000,
"LowAlarm": -1,
"HighAlarm": 1400,
"Unit": "W"
}
},
"Outputs": {
"Status": True,
"Voltage": {
"Value": 220,
"LowAlarm": 200,
"HighAlarm": 240,
"Unit": "V"
},
"Current": {
"Value": 6.0,
"LowAlarm": 0.2,
"HighAlarm": 7.0,
"Unit": "A"
},
"Power": {
"Value": 1000,
"LowAlarm": -1, # Don't care
"HighAlarm": 1400,
"Unit": "W"
}
}
}
}
"""
pass