sonic-buildimage/platform/broadcom/sonic-platform-modules-accton/as5835-54x/classes/thermalutil.py
Jeff Henning ad6200029f
Edgecore 4630/5835/7326/7816 API2.0 platform support (#10053)
* Initial pass of EdgeCore platform changes.

* Remove libevent dependency from lldpd.

* Remove python2 dependencies python3.7 force from platform install script.

* Include usbmount support changes.

* Add missing 4630 install file.

* Update a few file permissions.  Add umask line to Makefile.  Specify python3.9 in install script.

* Misc platform updates:
- Add missing fan drawer component to sonic_platform
- Remove kernel version specification from Makefile
- Update to 4630 utility

* - Fix file permissions on source files
- Fix compile issue with 4630 driver modules (set_fs, get_fs, no longer supported in kernel 5.10)

* Fix missing/extra parens in 4630 util script.

* Fix indentation in fanutil.py.

* Integrate deltas from Edgecore to ec_platform branch.

* Installer update from Edgecore to resolve smbus serial console errors.

* Update stable_size for warm boot.

* Fix SFP dictionary key to match xcvrd.

* - Add missing define in event.py files needed for xcvrd
- Fix SFP info dict key for 7xxx switches

* 5835 platform file updates including installer and 5835 utility.

* 5835 fix for DMAR errors on serial console.

* Don't skip starting thermalctld in the pmon container.

* Revert several changes that were not related to platform.

* Run thermalctld in pmon container.

* Don't disable thermalctld in the pmon container.

* Fix prints/parens in 7816 install utility.

* - Incorporate 7816 changes from Edgecore
- Fix 7326 driver file using old kernel function

* Update kernel modules to use kernel_read().

* Fix compile errors with 7816 and 7326 driver modules.

* Fix some indents preventing platform files from loading.

* Update 7816 platform sfp dictionary to match field names in xcvrd.

* Add missing service and util files for 7816.

* Update file names, etc. based on full SKU for 7816.

* Delete pddf files not needed.  These were causing conflicts with API2.0
implementation.

* Remove pddf files suggested by Edgecore that were preventing API2.0 support from starting.

* Install API2.0 file instead of pddf.

* Update 7326 mac service file to not use pddf.  Fix syntax errors in 7326 utility script.

* Fix sonic_platform setup file for 7326.

* Fix syntax errors in python scripts.

* Updates to 7326 platform files.

* Fix some tab errors pulled down from master merge.

* Remove pddf files that were added from previous merge.

* Updates for 5835.

* Fix missing command byte for 5835 psu status.

* Fix permission bits on 4630 service files.

* Update platforms to use new SFP refactoring.

* Fix unused var warnings.
2022-03-18 06:17:08 +05:30

93 lines
3.4 KiB
Python

#!/usr/bin/env python
#
# Copyright (C) 2017 Accton Technology Corporation
#
# 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 <http://www.gnu.org/licenses/>.
# ------------------------------------------------------------------
# HISTORY:
# mm/dd/yyyy (A.D.)
# 5/27/2019: Brandon_Chuang create
# ------------------------------------------------------------------
try:
import time
import logging
import glob
import subprocess
from collections import namedtuple
except ImportError as e:
raise ImportError('%s - required module not found' % str(e))
class ThermalUtil(object):
"""Platform-specific ThermalUtil class"""
THERMAL_NUM_MAX = 4
THERMAL_NUM_1_IDX = 1 # 1_ON_CPU_BROAD. LM75
THERMAL_NUM_2_IDX = 2 # 2_ON_MAIN_BROAD. LM75
THERMAL_NUM_3_IDX = 3 # 3_ON_MAIN_BROAD. LM75
THERMAL_NUM_4_IDX = 4 # 4_ON_MAIN_BROAD. LM75
""" Dictionary where
key1 = thermal id index (integer) starting from 1
value = path to fan device file (string) """
thermal_sysfspath ={
THERMAL_NUM_1_IDX: ["/sys/bus/i2c/devices/18-004b/hwmon/hwmon*/temp1_input"],
THERMAL_NUM_2_IDX: ["/sys/bus/i2c/devices/19-004c/hwmon/hwmon*/temp1_input"],
THERMAL_NUM_3_IDX: ["/sys/bus/i2c/devices/20-0049/hwmon/hwmon*/temp1_input"],
THERMAL_NUM_4_IDX: ["/sys/bus/i2c/devices/21-004a/hwmon/hwmon*/temp1_input"],
}
def get_thermal_val(self, thermal_num):
if thermal_num < self.THERMAL_NUM_1_IDX or thermal_num > self.THERMAL_NUM_MAX:
logging.debug('GET. Parameter error. thermal_num, %d', thermal_num)
return None
device_path = self.get_thermal_path(thermal_num)
for filename in glob.glob(device_path):
try:
val_file = open(filename, 'r')
except IOError as e:
logging.error('GET. unable to open file: %s', str(e))
return None
content = val_file.readline().rstrip()
if content == '':
logging.debug('GET. content is NULL. device_path:%s', device_path)
return None
try:
val_file.close()
except:
logging.debug('GET. unable to close file. device_path:%s', device_path)
return None
return int(content)
return 0
def get_num_thermals(self):
return self.THERMAL_NUM_MAX
def get_thermal_path(self, thermal_num):
return self.thermal_sysfspath[thermal_num][0]
def main():
thermal = ThermalUtil()
logging.basicConfig(level=logging.DEBUG)
logging.debug('thermal1=%d', thermal.get_thermal_val(1))
logging.debug('thermal2=%d', thermal.get_thermal_val(2))
logging.debug('thermal3=%d', thermal.get_thermal_val(3))
logging.debug('thermal4=%d', thermal.get_thermal_val(4))
if __name__ == '__main__':
main()