217 lines
7.3 KiB
Python
217 lines
7.3 KiB
Python
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#!/usr/bin/env python
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# Copyright (c) 2019 Edgecore Networks Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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#
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# THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT
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# LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS
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# FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT.
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#
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# See the Apache Version 2.0 License for specific language governing
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# permissions and limitations under the License.
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#
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# ------------------------------------------------------------------
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# HISTORY:
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# mm/dd/yyyy (A.D.)
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# 04/06/2021:Michael_Shih craete for as9726_32d
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# ------------------------------------------------------------------
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try:
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import logging
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except ImportError as e:
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raise ImportError('%s - required module not found' % str(e))
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class FanUtil(object):
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"""Platform-specific FanUtil class"""
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FAN_NUM_ON_MAIN_BROAD = 6
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FAN_NUM_1_IDX = 1
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FAN_NUM_2_IDX = 2
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FAN_NUM_3_IDX = 3
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FAN_NUM_4_IDX = 4
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FAN_NUM_5_IDX = 5
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FAN_NUM_6_IDX = 6
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FAN_NODE_NUM_OF_MAP = 2
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FAN_NODE_FAULT_IDX_OF_MAP = 1
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FAN_NODE_DIR_IDX_OF_MAP = 2
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BASE_VAL_PATH = '/sys/bus/i2c/devices/14-0066/{0}'
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FAN_DUTY_PATH = '/sys/bus/i2c/devices/14-0066/fan_duty_cycle_percentage'
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#logfile = ''
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#loglevel = logging.INFO
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""" Dictionary where
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key1 = fan id index (integer) starting from 1
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key2 = fan node index (interger) starting from 1
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value = path to fan device file (string) """
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_fan_device_path_mapping = {}
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#fan1_direction
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#fan1_fault
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#fan1_present
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#(FAN_NUM_2_IDX, FAN_NODE_DUTY_IDX_OF_MAP): 'fan2_duty_cycle_percentage',
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_fan_device_node_mapping = {
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(FAN_NUM_1_IDX, FAN_NODE_FAULT_IDX_OF_MAP): 'fan1_fault',
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(FAN_NUM_1_IDX, FAN_NODE_DIR_IDX_OF_MAP): 'fan1_direction',
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(FAN_NUM_2_IDX, FAN_NODE_FAULT_IDX_OF_MAP): 'fan2_fault',
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(FAN_NUM_2_IDX, FAN_NODE_DIR_IDX_OF_MAP): 'fan2_direction',
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(FAN_NUM_3_IDX, FAN_NODE_FAULT_IDX_OF_MAP): 'fan3_fault',
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(FAN_NUM_3_IDX, FAN_NODE_DIR_IDX_OF_MAP): 'fan3_direction',
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(FAN_NUM_4_IDX, FAN_NODE_FAULT_IDX_OF_MAP): 'fan4_fault',
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(FAN_NUM_4_IDX, FAN_NODE_DIR_IDX_OF_MAP): 'fan4_direction',
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(FAN_NUM_5_IDX, FAN_NODE_FAULT_IDX_OF_MAP): 'fan5_fault',
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(FAN_NUM_5_IDX, FAN_NODE_DIR_IDX_OF_MAP): 'fan5_direction',
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(FAN_NUM_6_IDX, FAN_NODE_FAULT_IDX_OF_MAP): 'fan6_fault',
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(FAN_NUM_6_IDX, FAN_NODE_DIR_IDX_OF_MAP): 'fan6_direction',
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}
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def _get_fan_device_node(self, fan_num, node_num):
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return self._fan_device_node_mapping[(fan_num, node_num)]
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def _get_fan_node_val(self, fan_num, node_num):
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if fan_num < self.FAN_NUM_1_IDX or fan_num > self.FAN_NUM_ON_MAIN_BROAD:
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logging.debug('GET. Parameter error. fan_num:%d', fan_num)
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return None
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if node_num < self.FAN_NODE_FAULT_IDX_OF_MAP or node_num > self.FAN_NODE_NUM_OF_MAP:
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logging.debug('GET. Parameter error. node_num:%d', node_num)
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return None
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device_path = self.get_fan_device_path(fan_num, node_num)
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try:
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val_file = open(device_path, 'r')
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except IOError as e:
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logging.error('GET. unable to open file: %s', str(e))
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return None
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content = val_file.readline().rstrip()
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if content == '':
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logging.debug('GET. content is NULL. device_path:%s', device_path)
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return None
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try:
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val_file.close()
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except IOError:
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logging.debug('GET. unable to close file. device_path:%s', device_path)
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return None
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return int(content)
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def _set_fan_node_val(self, fan_num, node_num, val):
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if fan_num < self.FAN_NUM_1_IDX or fan_num > self.FAN_NUM_ON_MAIN_BROAD:
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logging.debug('GET. Parameter error. fan_num:%d', fan_num)
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return None
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if node_num < self.FAN_NODE_FAULT_IDX_OF_MAP or node_num > self.FAN_NODE_NUM_OF_MAP:
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logging.debug('GET. Parameter error. node_num:%d', node_num)
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return None
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content = str(val)
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if content == '':
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logging.debug('GET. content is NULL. device_path:%s', device_path)
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return None
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device_path = self.get_fan_device_path(fan_num, node_num)
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try:
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val_file = open(device_path, 'w')
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except IOError as e:
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logging.error('GET. unable to open file: %s', str(e))
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return None
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val_file.write(content)
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try:
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val_file.close()
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except BaseException:
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logging.debug('GET. unable to close file. device_path:%s', device_path)
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return None
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return True
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def __init__(self):
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fan_path = self.BASE_VAL_PATH
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for fan_num in range(self.FAN_NUM_1_IDX, self.FAN_NUM_ON_MAIN_BROAD+1):
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for node_num in range(self.FAN_NODE_FAULT_IDX_OF_MAP, self.FAN_NODE_NUM_OF_MAP+1):
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self._fan_device_path_mapping[(fan_num, node_num)] = fan_path.format(
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self._fan_device_node_mapping[(fan_num, node_num)])
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def get_num_fans(self):
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return self.FAN_NUM_ON_MAIN_BROAD
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def get_idx_fan_start(self):
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return self.FAN_NUM_1_IDX
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def get_num_nodes(self):
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return self.FAN_NODE_NUM_OF_MAP
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def get_idx_node_start(self):
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return self.FAN_NODE_FAULT_IDX_OF_MAP
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def get_size_node_map(self):
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return len(self._fan_device_node_mapping)
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def get_size_path_map(self):
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return len(self._fan_device_path_mapping)
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def get_fan_device_path(self, fan_num, node_num):
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return self._fan_device_path_mapping[(fan_num, node_num)]
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def get_fan_fault(self, fan_num):
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return self._get_fan_node_val(fan_num, self.FAN_NODE_FAULT_IDX_OF_MAP)
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def get_fan_dir(self, fan_num):
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return self._get_fan_node_val(fan_num, self.FAN_NODE_DIR_IDX_OF_MAP)
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def get_fan_duty_cycle(self):
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#duty_path = self.FAN_DUTY_PATH
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try:
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val_file = open(self.FAN_DUTY_PATH)
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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content = val_file.readline().rstrip()
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val_file.close()
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return int(content)
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def set_fan_duty_cycle(self, val):
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try:
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fan_file = open(self.FAN_DUTY_PATH, 'r+')
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except IOError as e:
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print "Error: unable to open file: %s" % str(e)
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return False
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fan_file.write(str(val))
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fan_file.close()
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return True
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def get_fanr_speed(self, fan_num):
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return self._get_fan_node_val(fan_num, self.FANR_NODE_SPEED_IDX_OF_MAP)
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def get_fan_status(self, fan_num):
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if fan_num < self.FAN_NUM_1_IDX or fan_num > self.FAN_NUM_ON_MAIN_BROAD:
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logging.debug('GET. Parameter error. fan_num, %d', fan_num)
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return None
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if self.get_fan_fault(fan_num) is not None and self.get_fan_fault(fan_num) > 0:
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logging.debug('GET. FAN fault. fan_num, %d', fan_num)
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return False
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return True
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