d1940b2cf4
This patch set implements the following: - Fixes the conflicts in chassis.py / platform.py in sonic_platfrom - Consolidating the common library files in sonic_platform - Moving QFX5210 specific drivers to qfx5210/modules - Moving Juniper common fpga drivers to common/modules - Cleaning up the platform driver files - Bug fixes in QFX5210 platform monitor & initialiazation script - Fixing the bugs in QFX5210 eeprom parsing Signed-off-by: Ciju Rajan K <crajank@juniper.net>
190 lines
6.4 KiB
Python
190 lines
6.4 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Name: led_control.py version: 1.0
|
|
#
|
|
# Description: Platform-specific LED control functionality for Juniper QFX5200
|
|
#
|
|
# Copyright (c) 2020, Juniper Networks, Inc.
|
|
# All rights reserved.
|
|
#
|
|
# Notice and Disclaimer: This code is licensed to you under the GNU General
|
|
# Public License as published by the Free Software Foundation, version 3 or
|
|
# any later version. This code is not an official Juniper product. You can
|
|
# obtain a copy of the License at <https://www.gnu.org/licenses/>
|
|
#
|
|
# OSS License:
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
#
|
|
# Third-Party Code: This code may depend on other components under separate
|
|
# copyright notice and license terms. Your use of the source code for those
|
|
# components is subject to the terms and conditions of the respective license
|
|
# as noted in the Third-Party source code file.
|
|
|
|
try:
|
|
from sonic_led.led_control_base import LedControlBase
|
|
import os
|
|
import syslog
|
|
import glob
|
|
from socket import *
|
|
from select import *
|
|
except ImportError, e:
|
|
raise ImportError(str(e) + " - required module not found")
|
|
|
|
|
|
|
|
def DBG_PRINT(str):
|
|
syslog.openlog("ledi_control")
|
|
syslog.syslog(syslog.LOG_INFO, str)
|
|
syslog.closelog()
|
|
|
|
|
|
class LedControl(LedControlBase):
|
|
"""Platform specific LED control class"""
|
|
SONIC_PORT_NAME_PREFIX = "Ethernet"
|
|
LED_MODE_OFF = 0
|
|
LED_MODE_GREEN = 1
|
|
PORT_START = 0
|
|
PORT_END = 127
|
|
port_to_gpio_pin_mapping = {}
|
|
GPIO_SLAVE0_PORT_START = 0
|
|
GPIO_SLAVE0_PORT_END = 63
|
|
GPIO_SLAVE1_PORT_START = 64
|
|
GPIO_SLAVE1_PORT_END = 127
|
|
|
|
GPIO_LANE0_PORT_LED_OFFSET = 64
|
|
GPIO_LANE1_PORT_LED_OFFSET = 80
|
|
GPIO_LANE2_PORT_LED_OFFSET = 96
|
|
GPIO_LANE3_PORT_LED_OFFSET = 112
|
|
|
|
# Turn OFF all port leds during init
|
|
def gpio_create_file(self,gpio_pin):
|
|
gpio_export_path = "/sys/class/gpio/export"
|
|
gpio_pin_path = "/sys/class/gpio/gpio" + str(gpio_pin)
|
|
if not os.path.exists(gpio_pin_path):
|
|
try:
|
|
gpio_export_file = open(gpio_export_path, 'w')
|
|
gpio_export_file.write(str(gpio_pin))
|
|
gpio_export_file.close()
|
|
except IOError as e:
|
|
print "Error: unable to open export file: %s" % str(e)
|
|
return False
|
|
|
|
return True
|
|
|
|
def gpio_port_led_init(self,gpio_base, port):
|
|
port_led_pin = gpio_base + self.GPIO_LANE0_PORT_LED_OFFSET + 16*(port%4) + ((port % 64)/4)
|
|
if self.gpio_create_file(port_led_pin):
|
|
self.port_to_gpio_pin_mapping[port] = port_led_pin
|
|
|
|
|
|
def gpio_port_led_slave_init(self,gpio_base_path, gpio_port_start, gpio_port_end):
|
|
flist = glob.glob(gpio_base_path)
|
|
if len(flist) == 1:
|
|
try:
|
|
fp = open(flist[0] + "/base")
|
|
gpio_base = int(fp.readline().rstrip())
|
|
except IOError as e:
|
|
print "Error: unable to open file: %s" % str(e)
|
|
return
|
|
for port in range(gpio_port_start, gpio_port_end + 1):
|
|
self.gpio_port_led_init(gpio_base, port)
|
|
|
|
|
|
def gpio_port_led_base_init(self):
|
|
self.gpio_port_led_slave_init("/sys/bus/platform/drivers/gpioslave-tmc/gpioslave-tmc.22/gpio/gpio*",
|
|
self.GPIO_SLAVE0_PORT_START, self.GPIO_SLAVE0_PORT_END)
|
|
self.gpio_port_led_slave_init("/sys/bus/platform/drivers/gpioslave-tmc/gpioslave-tmc.21/gpio/gpio*",
|
|
self.GPIO_SLAVE1_PORT_START, self.GPIO_SLAVE1_PORT_END)
|
|
|
|
|
|
# Write driver for port led
|
|
def gpio_led_write(self,gpio_pin, value):
|
|
success = False
|
|
gpio_pin_path = "/sys/class/gpio/gpio" + str(gpio_pin)
|
|
|
|
try:
|
|
gpio_file = open(gpio_pin_path +"/value", 'w')
|
|
gpio_file.write(str(value))
|
|
success = True
|
|
except IOError as e:
|
|
print "error: unable to open file: %s" % str(e)
|
|
|
|
return success
|
|
|
|
# Read driver for port led
|
|
def gpio_led_read(self,gpio_pin):
|
|
gpio_pin_path = "/sys/class/gpio/gpio" + str(gpio_pin)
|
|
value = 0
|
|
|
|
try:
|
|
reg_file = open(gpio_pin_path +"/value")
|
|
value = int(reg_file.readline().rstrip())
|
|
except IOError as e:
|
|
print "error: unable to open file: %s" % str(e)
|
|
|
|
return value
|
|
|
|
def _initDefaultConfig(self):
|
|
DBG_PRINT("start init led")
|
|
|
|
for port in range(self.PORT_START, self.PORT_END):
|
|
self._port_led_mode_update(self.port_to_gpio_pin_mapping[port], self.LED_MODE_OFF)
|
|
|
|
DBG_PRINT("init led done")
|
|
|
|
# Helper method to map SONiC port name to index
|
|
def _port_name_to_index(self, port_name):
|
|
# Strip "Ethernet" off port name
|
|
if not port_name.startswith(self.SONIC_PORT_NAME_PREFIX):
|
|
return -1
|
|
|
|
port_idx = int(port_name[len(self.SONIC_PORT_NAME_PREFIX):])
|
|
return port_idx
|
|
|
|
# Convert state up/down to Green/OFF which is 1/0
|
|
def _port_state_to_mode(self, state):
|
|
if state == "up":
|
|
return self.LED_MODE_GREEN
|
|
else:
|
|
return self.LED_MODE_OFF
|
|
|
|
|
|
# Set the port led mode to Green/OFF
|
|
def _port_led_mode_update(self, gpio_pin, ledMode):
|
|
if ledMode == self.LED_MODE_GREEN:
|
|
self.gpio_led_write(gpio_pin, 1)
|
|
else:
|
|
self.gpio_led_write(gpio_pin, 0)
|
|
|
|
|
|
# Concrete implementation of port_link_state_change() method
|
|
def port_link_state_change(self, portname, state):
|
|
port_idx = self._port_name_to_index(portname)
|
|
gpio_pin = self.port_to_gpio_pin_mapping[port_idx]
|
|
|
|
ledMode = self._port_state_to_mode(state)
|
|
saveMode = self.gpio_led_read(gpio_pin)
|
|
|
|
if ledMode == saveMode:
|
|
return
|
|
|
|
self._port_led_mode_update(gpio_pin, ledMode)
|
|
DBG_PRINT("update {} led mode from {} to {}".format(portname, saveMode, ledMode))
|
|
|
|
# Constructor
|
|
def __init__(self):
|
|
self.gpio_port_led_base_init()
|
|
self._initDefaultConfig()
|