79 lines
2.3 KiB
Python
79 lines
2.3 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_DX010_SPEED_PATH = "/sys/class/hwmon/hwmon{}/fan1_input"
|
||
|
|
GREEN_LED_PATH = "/sys/devices/platform/leds_dx010/leds/dx010:green:p-{}/brightness"
|
||
|
|
FAN_MAX_RPM = 11000
|
||
|
|
|
||
|
|
|
||
|
|
class Psu(PsuBase):
|
||
|
|
"""Platform-specific Psu class"""
|
||
|
|
|
||
|
|
def __init__(self, psu_index):
|
||
|
|
PsuBase.__init__(self)
|
||
|
|
self.index = psu_index
|
||
|
|
self.green_led_path = GREEN_LED_PATH.format(self.index+1)
|
||
|
|
|
||
|
|
def get_fan(self):
|
||
|
|
"""
|
||
|
|
Retrieves object representing the fan module contained in this PSU
|
||
|
|
Returns:
|
||
|
|
An object dervied from FanBase representing the fan module
|
||
|
|
contained in this PSU
|
||
|
|
"""
|
||
|
|
|
||
|
|
fan_speed_path = FAN_DX010_SPEED_PATH.format(
|
||
|
|
str(self.index+8))
|
||
|
|
try:
|
||
|
|
with open(fan_speed_path) as fan_speed_file:
|
||
|
|
fan_speed_rpm = int(fan_speed_file.read())
|
||
|
|
except IOError:
|
||
|
|
fan_speed = 0
|
||
|
|
|
||
|
|
fan_speed = float(fan_speed_rpm)/FAN_MAX_RPM * 100
|
||
|
|
fan = Fan(0)
|
||
|
|
fan.fan_speed = int(fan_speed) if int(fan_speed) <= 100 else 100
|
||
|
|
return fan
|
||
|
|
|
||
|
|
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
|
||
|
|
"""
|
||
|
|
|
||
|
|
set_status_str = {
|
||
|
|
self.STATUS_LED_COLOR_GREEN: '1',
|
||
|
|
self.STATUS_LED_COLOR_OFF: '0'
|
||
|
|
}.get(color, None)
|
||
|
|
|
||
|
|
if not set_status_str:
|
||
|
|
return False
|
||
|
|
|
||
|
|
try:
|
||
|
|
with open(self.green_led_path, 'w') as file:
|
||
|
|
file.write(set_status_str)
|
||
|
|
except IOError:
|
||
|
|
return False
|
||
|
|
|
||
|
|
return True
|