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# Copyright (c) 2012 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.
#
# Thermal engine unit test
#
CPU = 0
BOARD = 1
CASE = 2
def getWarningConfig(helper, sensor_type):
ret = dict()
helper.ec_command("thermalconf %d" % sensor_type)
ret['warning'] = int(helper.wait_output(
"Warning:\s*(?P<t>\d+) K", use_re=True)["t"])
ret['cpudown'] = int(helper.wait_output(
"CPU Down:\s*(?P<t>\d+) K", use_re=True)["t"])
ret['powerdown'] = int(helper.wait_output(
"Power Down:\s*(?P<t>\d+) K", use_re=True)["t"])
return ret
def getFanConfig(helper, sensor_type):
ret = list()
helper.ec_command("thermalfan %d" % sensor_type)
while True:
try:
match = helper.wait_output("(?P<t>\d+)\s*K:\s*(?P<r>-?\d+)\s",
use_re=True, timeout=1)
ret.append((int(match["t"]), int(match["r"])))
except:
break
return ret
def test(helper):
helper.wait_output("Inits done")
# Get thermal engine configuration
config = [getWarningConfig(helper, sensor_type)
for sensor_type in xrange(3)]
fan_config = [getFanConfig(helper, sensor_type)
for sensor_type in xrange(3)]
# Set initial temperature values
helper.ec_command("setcputemp %d" % max(fan_config[CPU][0][0]-1, 0))
helper.ec_command("setboardtemp %d" % max(fan_config[BOARD][0][0]-1, 0))
helper.ec_command("setcasetemp %d" % max(fan_config[CASE][0][0]-1, 0))
# Increase CPU temperature to first fan step
# Check if fan comes up
helper.ec_command("setcputemp %d" % fan_config[CPU][0][0])
helper.wait_output("Fan RPM: %d" % fan_config[CPU][0][1], timeout=11)
# Increase CPU temperature to second fan step
helper.ec_command("setcputemp %d" % fan_config[CPU][1][0])
helper.wait_output("Fan RPM: %d" % fan_config[CPU][1][1], timeout=11)
# Lower CPU temperature to 1 degree below second fan step
# Check fan speed doesn't change
helper.ec_command("setcputemp %d" % (fan_config[CPU][1][0]-1))
for i in xrange(12):
helper.wait_output("Fan RPM: %d" % fan_config[CPU][1][1], timeout=2)
# Set CPU temperature to a high value for only one second
# Check fan speed doesn't change
helper.ec_command("setcputemp 400")
helper.wait_output("Fan RPM: %d" % fan_config[CPU][1][1])
helper.ec_command("setcputemp %d" % fan_config[CPU][1][0])
# Set case temperature to first fan step
# Check fan is set to second step
helper.ec_command("setcasetemp %d" % fan_config[CASE][0][0])
for i in xrange(12):
helper.wait_output("Fan RPM: %d" % fan_config[CASE][1][1], timeout=2)
# Set case temperature to third fan step
# Check fan is set to third step
helper.ec_command("setcasetemp %d" % fan_config[CASE][2][0])
helper.wait_output("Fan RPM: %d" % fan_config[CASE][2][1], timeout=11)
# Set CPU temperature to trigger warning and throttle CPU
helper.ec_command("setcputemp %d" % config[CPU]['warning'])
helper.wait_output("Throttle CPU.", timeout=11)
host_event = helper.wait_output("Host event: (?P<h>\d+)", use_re=True,
timeout=2)["h"]
if (int(host_event, 16) & 0x200) == 0:
helper.trace("Fail to get thermal overload event")
return False
# Lower CPU temperature and check CPU is not throttled
helper.ec_command("setcputemp %d" % (config[CPU]['warning']-5))
helper.wait_output("No longer throttle CPU.", timeout=2)
# Set CPU temperature to trigger CPU shutdown
helper.ec_command("setcputemp %d" % config[CPU]['cpudown'])
helper.wait_output("CPU overheated", timeout=11)
# Set CPU temperature to trigger force shutdown
helper.ec_command("setcputemp %d" % config[CPU]['powerdown'])
helper.wait_output("Force shutdown", timeout=11)
# Pass!
return True
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