blob: 5e89c9db4ae50d53e2f3c1f748584ffb453175a8 [file] [log] [blame]
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Hardware test for temp sensor. The test uses mosys to read temp sensor value
# and check it's in reasonable range.
import re
from autotest_lib.client.bin import test, utils
from autotest_lib.client.common_lib import error
# Reasonable temp range for different temp units.
'degrees C': (0, 100),
class TempSensor(object):
MOSYS_OUTPUT_RE = re.compile('(\w+)="(.*?)"')
def __init__(self, name):
self._name = name
def get_values(self):
values = {}
cmd = 'mosys -k sensor print thermal %s' % self._name
for kv in self.MOSYS_OUTPUT_RE.finditer(utils.system_output(cmd)):
key, value = kv.groups()
if key == 'reading':
value = int(value)
values[key] = value
return values
def get_units(self):
return self.get_values()['units']
def get_reading(self):
return self.get_values()['reading']
class hardware_Thermal(test.test):
version = 1
def run_once(self, temp_sensor_names=['temp0']):
if not temp_sensor_names:
raise error.TestError('No temp sensor specified')
for name in temp_sensor_names:
ts = TempSensor(name)
units = ts.get_units()
low, high = TEMP_RANGE[units]
except KeyError:
raise error.TestError('Unknown temp units of %s' % name)
if not low <= ts.get_reading() <= high:
raise error.TestError('Temperature of %s out of range' % name)