109 lines
3.4 KiB
Python
109 lines
3.4 KiB
Python
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#!/usr/bin/env python
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#############################################################################
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# Celestica
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#
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# Module contains an implementation of SONiC Platform Base API and
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# provides the Chassis information which are available in the platform
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#
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#############################################################################
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import sys
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import re
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import os
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import subprocess
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import json
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try:
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from sonic_platform_base.chassis_base import ChassisBase
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from sonic_platform.fan import Fan
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except ImportError as e:
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raise ImportError(str(e) + "- required module not found")
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MMC_CPLD_ADDR = '0x100'
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BIOS_VERSION_PATH = "/sys/class/dmi/id/bios_version"
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CONFIG_DB_PATH = "/etc/sonic/config_db.json"
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SMC_CPLD_PATH = "/sys/devices/platform/e1031.smc/version"
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MMC_CPLD_PATH = "/sys/devices/platform/e1031.smc/getreg"
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NUM_FAN = 3
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class Chassis(ChassisBase):
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"""Platform-specific Chassis class"""
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def __init__(self):
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self.config_data = {}
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for index in range(0, NUM_FAN):
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fan = Fan(index)
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self._fan_list.append(fan)
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ChassisBase.__init__(self)
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def __get_register_value(self, path, register):
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cmd = "echo {1} > {0}; cat {0}".format(path, register)
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p = subprocess.Popen(
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cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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raw_data, err = p.communicate()
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if err is not '':
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return 'None'
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else:
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return raw_data.strip()
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def __read_config_db(self):
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try:
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with open(CONFIG_DB_PATH, 'r') as fd:
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data = json.load(fd)
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return data
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except IOError:
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raise IOError("Unable to open config_db file !")
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def get_base_mac(self):
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"""
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Retrieves the base MAC address for the chassis
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Returns:
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A string containing the MAC address in the format
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'XX:XX:XX:XX:XX:XX'
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"""
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try:
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self.config_data = self.__read_config_db()
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base_mac = self.config_data["DEVICE_METADATA"]["localhost"]["mac"]
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return str(base_mac)
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except KeyError:
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raise KeyError("Base MAC not found")
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def get_component_versions(self):
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"""
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Retrieves platform-specific hardware/firmware versions for chassis
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componenets such as BIOS, CPLD, FPGA, etc.
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Returns:
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A string containing platform-specific component versions
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"""
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component_versions = dict()
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# Get BIOS version
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try:
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with open(BIOS_VERSION_PATH, 'r') as fd:
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bios_version = fd.read()
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except IOError:
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raise IOError("Unable to open version file !")
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# Get CPLD version
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cpld_version = dict()
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with open(SMC_CPLD_PATH, 'r') as fd:
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smc_cpld_version = fd.read()
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smc_cpld_version = 'None' if smc_cpld_version is 'None' else "{}.{}".format(
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int(smc_cpld_version[2], 16), int(smc_cpld_version[3], 16))
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mmc_cpld_version = self.__get_register_value(
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MMC_CPLD_PATH, MMC_CPLD_ADDR)
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mmc_cpld_version = 'None' if mmc_cpld_version is 'None' else "{}.{}".format(
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int(mmc_cpld_version[2], 16), int(mmc_cpld_version[3], 16))
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cpld_version["SMC"] = smc_cpld_version
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cpld_version["MMC"] = mmc_cpld_version
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component_versions["CPLD"] = cpld_version
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component_versions["BIOS"] = bios_version.strip()
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return str(component_versions)
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