202 lines
6.4 KiB
Python
202 lines
6.4 KiB
Python
#!/usr/bin/env python
|
|
|
|
#############################################################################
|
|
# Celestica
|
|
#
|
|
# Module contains an implementation of SONiC Platform Base API and
|
|
# provides the PSUs status which are available in the platform
|
|
#
|
|
#############################################################################
|
|
|
|
import os.path
|
|
import sonic_platform
|
|
|
|
try:
|
|
from sonic_platform_base.psu_base import PsuBase
|
|
from sonic_platform.fan import Fan
|
|
except ImportError as e:
|
|
raise ImportError(str(e) + "- required module not found")
|
|
|
|
FAN_E1031_SPEED_PATH = "/sys/class/hwmon/hwmon{}/fan1_input"
|
|
HWMON_PATH = "/sys/bus/i2c/devices/i2c-{0}/{0}-00{1}/hwmon"
|
|
FAN_MAX_RPM = 11000
|
|
PSU_NAME_LIST = ["PSU-R", "PSU-L"]
|
|
PSU_NUM_FAN = [1, 1]
|
|
PSU_I2C_MAPPING = {
|
|
0: {
|
|
"num": 13,
|
|
"addr": "5b"
|
|
},
|
|
1: {
|
|
"num": 12,
|
|
"addr": "5a"
|
|
},
|
|
}
|
|
|
|
|
|
class Psu(PsuBase):
|
|
"""Platform-specific Psu class"""
|
|
|
|
def __init__(self, psu_index):
|
|
PsuBase.__init__(self)
|
|
self.index = psu_index
|
|
self.psu_path = "/sys/devices/platform/e1031.smc/"
|
|
self.psu_presence = "psu{}_prs"
|
|
self.psu_oper_status = "psu{}_status"
|
|
self.i2c_num = PSU_I2C_MAPPING[self.index]["num"]
|
|
self.i2c_addr = PSU_I2C_MAPPING[self.index]["addr"]
|
|
self.hwmon_path = HWMON_PATH.format(self.i2c_num, self.i2c_addr)
|
|
for fan_index in range(0, PSU_NUM_FAN[self.index]):
|
|
fan = Fan(fan_index, 0, is_psu_fan=True, psu_index=self.index)
|
|
self._fan_list.append(fan)
|
|
PsuBase.__init__(self)
|
|
|
|
def __read_txt_file(self, file_path):
|
|
try:
|
|
with open(file_path, 'r') as fd:
|
|
data = fd.read()
|
|
return data.strip()
|
|
except IOError:
|
|
pass
|
|
return ""
|
|
|
|
def __search_file_by_contain(self, directory, search_str, file_start):
|
|
for dirpath, dirnames, files in os.walk(directory):
|
|
for name in files:
|
|
file_path = os.path.join(dirpath, name)
|
|
if name.startswith(file_start) and search_str in self.__read_txt_file(file_path):
|
|
return file_path
|
|
return None
|
|
|
|
def get_voltage(self):
|
|
"""
|
|
Retrieves current PSU voltage output
|
|
Returns:
|
|
A float number, the output voltage in volts,
|
|
e.g. 12.1
|
|
"""
|
|
psu_voltage = 0.0
|
|
voltage_name = "in{}_input"
|
|
voltage_label = "vout1"
|
|
|
|
vout_label_path = self.__search_file_by_contain(
|
|
self.hwmon_path, voltage_label, "in")
|
|
if vout_label_path:
|
|
dir_name = os.path.dirname(vout_label_path)
|
|
basename = os.path.basename(vout_label_path)
|
|
in_num = filter(str.isdigit, basename)
|
|
vout_path = os.path.join(
|
|
dir_name, voltage_name.format(in_num))
|
|
vout_val = self.__read_txt_file(vout_path)
|
|
psu_voltage = float(vout_val) / 1000
|
|
|
|
return psu_voltage
|
|
|
|
def get_current(self):
|
|
"""
|
|
Retrieves present electric current supplied by PSU
|
|
Returns:
|
|
A float number, the electric current in amperes, e.g 15.4
|
|
"""
|
|
psu_current = 0.0
|
|
current_name = "curr{}_input"
|
|
current_label = "iout1"
|
|
|
|
curr_label_path = self.__search_file_by_contain(
|
|
self.hwmon_path, current_label, "cur")
|
|
if curr_label_path:
|
|
dir_name = os.path.dirname(curr_label_path)
|
|
basename = os.path.basename(curr_label_path)
|
|
cur_num = filter(str.isdigit, basename)
|
|
cur_path = os.path.join(
|
|
dir_name, current_name.format(cur_num))
|
|
cur_val = self.__read_txt_file(cur_path)
|
|
psu_current = float(cur_val) / 1000
|
|
|
|
return psu_current
|
|
|
|
def get_power(self):
|
|
"""
|
|
Retrieves current energy supplied by PSU
|
|
Returns:
|
|
A float number, the power in watts, e.g. 302.6
|
|
"""
|
|
psu_power = 0.0
|
|
current_name = "power{}_input"
|
|
current_label = "pout1"
|
|
|
|
pw_label_path = self.__search_file_by_contain(
|
|
self.hwmon_path, current_label, "power")
|
|
if pw_label_path:
|
|
dir_name = os.path.dirname(pw_label_path)
|
|
basename = os.path.basename(pw_label_path)
|
|
pw_num = filter(str.isdigit, basename)
|
|
pw_path = os.path.join(
|
|
dir_name, current_name.format(pw_num))
|
|
pw_val = self.__read_txt_file(pw_path)
|
|
psu_power = float(pw_val) / 1000000
|
|
|
|
return psu_power
|
|
|
|
def get_powergood_status(self):
|
|
"""
|
|
Retrieves the powergood status of PSU
|
|
Returns:
|
|
A boolean, True if PSU has stablized its output voltages and passed all
|
|
its internal self-tests, False if not.
|
|
"""
|
|
return self.get_status()
|
|
|
|
def set_status_led(self, color):
|
|
"""
|
|
Sets the state of the PSU status LED
|
|
Args:
|
|
color: A string representing the color with which to set the PSU status LED
|
|
Note: Only support green and off
|
|
Returns:
|
|
bool: True if status LED state is set successfully, False if not
|
|
"""
|
|
# Hardware not supported
|
|
return False
|
|
|
|
def get_status_led(self):
|
|
"""
|
|
Gets the state of the PSU status LED
|
|
Returns:
|
|
A string, one of the predefined STATUS_LED_COLOR_* strings above
|
|
"""
|
|
# Hardware not supported
|
|
return self.STATUS_LED_COLOR_OFF
|
|
|
|
def get_name(self):
|
|
"""
|
|
Retrieves the name of the device
|
|
Returns:
|
|
string: The name of the device
|
|
"""
|
|
return PSU_NAME_LIST[self.index]
|
|
|
|
def get_presence(self):
|
|
"""
|
|
Retrieves the presence of the PSU
|
|
Returns:
|
|
bool: True if PSU is present, False if not
|
|
"""
|
|
psu_location = ["R", "L"]
|
|
presences_status = self.__read_txt_file(
|
|
self.psu_path + self.psu_presence.format(psu_location[self.index])) or 0
|
|
|
|
return int(presences_status) == 1
|
|
|
|
def get_status(self):
|
|
"""
|
|
Retrieves the operational status of the device
|
|
Returns:
|
|
A boolean value, True if device is operating properly, False if not
|
|
"""
|
|
psu_location = ["R", "L"]
|
|
power_status = self.__read_txt_file(
|
|
self.psu_path + self.psu_oper_status.format(psu_location[self.index])) or 0
|
|
|
|
return int(power_status) == 1
|