3b863e60be
When ptp-notification application is used with a ts2phc instance, the
name of nmea serial port (ttyGNSS device) is retrieved from the kernel
logs. This change fixes the look for 'dmesg' file which is not available
by replacing it by 'kern.log' where that information could be found.
Test Plan:
PASS: Updated ptp-notification-ptptracking container running in
environment with ts2phc instance configured and running.
Closes-Bug: #1995718
Signed-off-by: Douglas Henrique Koerich <douglashenrique.koerich@windriver.com>
Change-Id: I39a147f2eb626ad843035935de334d9f3dcf33d7
123 lines
4.5 KiB
Python
123 lines
4.5 KiB
Python
#
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# Copyright (c) 2022 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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import logging
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import os
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import re
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from trackingfunctionsdk.common.helpers import constants
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from trackingfunctionsdk.common.helpers import log_helper
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LOG = logging.getLogger(__name__)
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log_helper.config_logger(LOG)
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class CguHandler:
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def __init__(self, config_file, nmea_serialport=None, pci_addr=None,
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cgu_path=None):
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self.config_file = config_file
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self.nmea_serialport = nmea_serialport
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self.pci_addr = pci_addr
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self.cgu_path = cgu_path
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self.cgu_output_raw = ""
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self.cgu_output_parsed = {}
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def get_gnss_nmea_serialport_from_ts2phc_config(self):
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# Read a tstphc config file and return the ts2phc.nmea_serialport
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nmea_serialport = None
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try:
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with open(self.config_file, 'r') as infile:
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for line in infile:
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if constants.NMEA_SERIALPORT in line:
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nmea_serialport = line.split(' ')[1].strip('\n')
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break
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self.nmea_serialport = nmea_serialport
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return
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except (FileNotFoundError, PermissionError) as err:
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LOG.error(err)
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raise
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def convert_nmea_serialport_to_pci_addr(self, log_file="/logs/kern.log"):
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# Parse the nmea_serialport value into a PCI address so that we can
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# later find the cgu
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# Returns the address or None
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pci_addr = None
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# Get only the ttyGNSS_1800_0 portion of the path
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nmea_serialport = self.nmea_serialport.split('/')[2]
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LOG.debug("Looking for nmea_serialport value: %s" % nmea_serialport)
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with open(log_file, 'r') as file:
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for line in file:
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if nmea_serialport in line:
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# Regex split to make any number of spaces the delimiter
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# Eg.: ... ice 0000:18:00.0: ttyGNSS_1800_0 registered
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# Becomes: 0000:18:00.0
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pci_addr = re.split(' +', line)[7].strip(':')
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LOG.debug("Found with PCI addr: %s" % pci_addr)
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break
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self.pci_addr = pci_addr
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def get_cgu_path_from_pci_addr(self):
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# Search for a cgu file using the given pci address
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cgu_path = "/ice/" + self.pci_addr + "/cgu"
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if os.path.exists(cgu_path):
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LOG.debug("PCI address %s has cgu path %s" %
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(self.pci_addr, cgu_path))
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self.cgu_path = cgu_path
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return
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else:
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LOG.error("Could not find cgu path for PCI address %s" %
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self.pci_addr)
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raise FileNotFoundError
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def read_cgu(self):
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# Read a given cgu path and return the output in a parseable structure
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cgu_output = None
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if os.path.exists(self.cgu_path):
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with open(self.cgu_path, 'r') as infile:
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cgu_output = infile.read()
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self.cgu_output_raw = cgu_output
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def cgu_output_to_dict(self):
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# Take raw cgu output and parse it into a dict
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cgu_output = self.cgu_output_raw.splitlines()
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cgu_dict = {'input': {},
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'EEC DPLL': {
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'Current reference': '',
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'Status': ''
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},
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'PPS DPLL': {
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'Current reference': '',
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'Status': '',
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'Phase offset': ''
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}
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}
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for line in cgu_output[7:14]:
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# Build a dict out of the 7 line table
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dict_to_insert = {
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re.split(' +', line)[1]: {
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'state': re.split(' +', line)[4],
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'priority': {
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'EEC': re.split(' +', line)[6],
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'PPS': re.split(' +', line)[8]
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}
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}
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}
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cgu_dict['input'].update(dict_to_insert)
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# Add the DPLL data below the table
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cgu_dict['EEC DPLL']['Current reference'] = \
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re.split('[ \t]+', cgu_output[16])[3]
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cgu_dict['EEC DPLL']['Status'] = re.split('[ \t]+', cgu_output[17])[2]
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cgu_dict['PPS DPLL']['Current reference'] = \
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re.split('[ \t]+', cgu_output[20])[3]
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cgu_dict['PPS DPLL']['Status'] = re.split('[ \t]+', cgu_output[21])[2]
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cgu_dict['PPS DPLL']['Phase offset'] = \
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re.split('[ \t]+', cgu_output[22])[3]
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self.cgu_output_parsed = cgu_dict
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