ecdd866713
* [platform/cel]: add bios upgrade tool * [device/celestica]: update Seastone/E1031 component api to support BIOS upgrade * [device/celestica]: add error handler for eeprom api * [device/celestica]: add component description
113 lines
3.1 KiB
Python
113 lines
3.1 KiB
Python
#!/usr/bin/env python
|
|
|
|
#############################################################################
|
|
# Celestica Haliburton
|
|
#
|
|
# Platform and model specific eeprom subclass, inherits from the base class,
|
|
# and provides the followings:
|
|
# - the eeprom format definition
|
|
# - specific encoder/decoder if there is special need
|
|
#############################################################################
|
|
|
|
try:
|
|
import glob
|
|
import os
|
|
import sys
|
|
import imp
|
|
import re
|
|
from array import array
|
|
from cStringIO import StringIO
|
|
from sonic_platform_base.sonic_eeprom import eeprom_dts
|
|
from sonic_platform_base.sonic_eeprom import eeprom_tlvinfo
|
|
except ImportError, e:
|
|
raise ImportError(str(e) + "- required module not found")
|
|
|
|
CACHE_ROOT = '/var/cache/sonic/decode-syseeprom'
|
|
CACHE_FILE = 'syseeprom_cache'
|
|
|
|
|
|
class Tlv(eeprom_tlvinfo.TlvInfoDecoder):
|
|
|
|
EEPROM_DECODE_HEADLINES = 6
|
|
|
|
def __init__(self):
|
|
self._eeprom_path = "/sys/class/i2c-adapter/i2c-2/2-0050/eeprom"
|
|
super(Tlv, self).__init__(self._eeprom_path, 0, '', True)
|
|
self._eeprom = self._load_eeprom()
|
|
|
|
def __parse_output(self, decode_output):
|
|
decode_output.replace('\0', '')
|
|
lines = decode_output.split('\n')
|
|
lines = lines[self.EEPROM_DECODE_HEADLINES:]
|
|
_eeprom_info_dict = dict()
|
|
|
|
for line in lines:
|
|
try:
|
|
match = re.search(
|
|
'(0x[0-9a-fA-F]{2})([\s]+[\S]+[\s]+)([\S]+)', line)
|
|
if match is not None:
|
|
idx = match.group(1)
|
|
value = match.group(3).rstrip('\0')
|
|
|
|
_eeprom_info_dict[idx] = value
|
|
except:
|
|
pass
|
|
return _eeprom_info_dict
|
|
|
|
def _load_eeprom(self):
|
|
original_stdout = sys.stdout
|
|
sys.stdout = StringIO()
|
|
try:
|
|
self.read_eeprom_db()
|
|
except:
|
|
decode_output = sys.stdout.getvalue()
|
|
sys.stdout = original_stdout
|
|
return self.__parse_output(decode_output)
|
|
|
|
status = self.check_status()
|
|
if 'ok' not in status:
|
|
return False
|
|
|
|
if not os.path.exists(CACHE_ROOT):
|
|
try:
|
|
os.makedirs(CACHE_ROOT)
|
|
except:
|
|
pass
|
|
|
|
#
|
|
# only the eeprom classes that inherit from eeprom_base
|
|
# support caching. Others will work normally
|
|
#
|
|
try:
|
|
self.set_cache_name(os.path.join(CACHE_ROOT, CACHE_FILE))
|
|
except:
|
|
pass
|
|
|
|
e = self.read_eeprom()
|
|
if e is None:
|
|
return 0
|
|
|
|
try:
|
|
self.update_cache(e)
|
|
except:
|
|
pass
|
|
|
|
self.decode_eeprom(e)
|
|
decode_output = sys.stdout.getvalue()
|
|
sys.stdout = original_stdout
|
|
|
|
(is_valid, valid_crc) = self.is_checksum_valid(e)
|
|
if not is_valid:
|
|
return False
|
|
|
|
return self.__parse_output(decode_output)
|
|
|
|
def get_eeprom(self):
|
|
return self._eeprom
|
|
|
|
def get_serial(self):
|
|
return self._eeprom.get('0x23', "Undefined.")
|
|
|
|
def get_mac(self):
|
|
return self._eeprom.get('0x24', "Undefined.")
|