fbcb9403e8
1. Add device/celestica/x86_64-cel_seastone-r0/platform.json 2. Update functions to support python3.7 3. Add more functions follow latest sonic_platform_base 4. Fix the bug Co-authored-by: 119064273 <2276096708@qq.com> Co-authored-by: Eric Zhu <erzhu@celestica.com> Co-authored-by: doni@celestica.com <doni@celestica.com>
142 lines
4.1 KiB
Python
142 lines
4.1 KiB
Python
#############################################################################
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# Celestica Seastone-DX010
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#
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# Platform and model specific eeprom subclass, inherits from the base class,
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# and provides the followings:
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# - the eeprom format definition
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# - specific encoder/decoder if there is special need
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#############################################################################
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try:
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import os
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import sys
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import re
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if sys.version_info.major == 3:
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from io import StringIO
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else:
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from cStringIO import StringIO
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from sonic_platform_base.sonic_eeprom import eeprom_tlvinfo
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except ImportError as e:
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raise ImportError(str(e) + "- required module not found")
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CACHE_ROOT = '/var/cache/sonic/decode-syseeprom'
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CACHE_FILE = 'syseeprom_cache'
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NULL = 'N/A'
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class Tlv(eeprom_tlvinfo.TlvInfoDecoder):
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EEPROM_DECODE_HEADLINES = 6
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def __init__(self):
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self._eeprom_path = "/sys/class/i2c-adapter/i2c-12/12-0050/eeprom"
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super(Tlv, self).__init__(self._eeprom_path, 0, '', True)
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self._eeprom = self._load_eeprom()
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def __parse_output(self, decode_output):
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decode_output.replace('\0', '')
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lines = decode_output.split('\n')
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lines = lines[self.EEPROM_DECODE_HEADLINES:]
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_eeprom_info_dict = dict()
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for line in lines:
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try:
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match = re.search(
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'(0x[0-9a-fA-F]{2})([\s]+[\S]+[\s]+)([\S]+)', line)
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if match is not None:
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idx = match.group(1)
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value = match.group(3).rstrip('\0')
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_eeprom_info_dict[idx] = value
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except BaseException:
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pass
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return _eeprom_info_dict
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def _load_eeprom(self):
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original_stdout = sys.stdout
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sys.stdout = StringIO()
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try:
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self.read_eeprom_db()
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except BaseException:
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decode_output = sys.stdout.getvalue()
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sys.stdout = original_stdout
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return self.__parse_output(decode_output)
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status = self.check_status()
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if 'ok' not in status:
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return False
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if not os.path.exists(CACHE_ROOT):
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try:
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os.makedirs(CACHE_ROOT)
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except BaseException:
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pass
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#
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# only the eeprom classes that inherit from eeprom_base
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# support caching. Others will work normally
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#
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try:
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self.set_cache_name(os.path.join(CACHE_ROOT, CACHE_FILE))
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except BaseException:
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pass
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e = self.read_eeprom()
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if e is None:
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return 0
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try:
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self.update_cache(e)
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except BaseException:
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pass
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self.decode_eeprom(e)
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decode_output = sys.stdout.getvalue()
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sys.stdout = original_stdout
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(is_valid, valid_crc) = self.is_checksum_valid(e)
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if not is_valid:
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return False
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return self.__parse_output(decode_output)
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def _valid_tlv(self, eeprom_data):
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tlvinfo_type_codes_list = [
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self._TLV_CODE_PRODUCT_NAME,
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self._TLV_CODE_PART_NUMBER,
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self._TLV_CODE_SERIAL_NUMBER,
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self._TLV_CODE_MAC_BASE,
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self._TLV_CODE_MANUF_DATE,
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self._TLV_CODE_DEVICE_VERSION,
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self._TLV_CODE_LABEL_REVISION,
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self._TLV_CODE_PLATFORM_NAME,
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self._TLV_CODE_ONIE_VERSION,
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self._TLV_CODE_MAC_SIZE,
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self._TLV_CODE_MANUF_NAME,
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self._TLV_CODE_MANUF_COUNTRY,
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self._TLV_CODE_VENDOR_NAME,
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self._TLV_CODE_DIAG_VERSION,
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self._TLV_CODE_SERVICE_TAG,
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self._TLV_CODE_VENDOR_EXT,
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self._TLV_CODE_CRC_32
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]
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for code in tlvinfo_type_codes_list:
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code_str = "0x{:X}".format(code)
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eeprom_data[code_str] = eeprom_data.get(code_str, NULL)
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return eeprom_data
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def get_eeprom(self):
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return self._valid_tlv(self._eeprom)
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def get_pn(self):
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return self._eeprom.get('0x22', NULL)
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def get_serial(self):
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return self._eeprom.get('0x23', NULL)
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def get_mac(self):
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return self._eeprom.get('0x24', NULL)
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