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# 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.
#
# Charging state machine unit test
#
import time
def consume_charge_state(helper):
try:
while True:
helper.wait_output("Charge state \S+ -> \S+",
use_re=True,
timeout=1)
except:
pass
def wait_charge_state(helper, state):
helper.wait_output("Charge state \S+ -> %s" % state, use_re=True)
def test(helper):
helper.wait_output("--- UART initialized")
# Check charge when AC present
consume_charge_state(helper)
helper.ec_command("gpiomock AC_PRESENT 1")
wait_charge_state(helper, "charge")
# Check discharge when AC not present
helper.ec_command("gpiomock AC_PRESENT 0")
wait_charge_state(helper, "discharge")
# Check charge current
helper.ec_command("sbmock desire_current 2800")
helper.ec_command("gpiomock AC_PRESENT 1")
helper.wait_output("Charger set current: 2800")
# Check charger voltage
helper.ec_command("gpiomock AC_PRESENT 0")
wait_charge_state(helper, "discharge")
helper.ec_command("sbmock desire_voltage 7500")
helper.ec_command("gpiomock AC_PRESENT 1")
helper.wait_output("Charger set voltage: 7500")
# While powered on and discharging, over-temperature should trigger
# system shutdown
helper.ec_command("gpiomock AC_PRESENT 0")
wait_charge_state(helper, "discharge")
helper.ec_command("powermock on")
helper.ec_command("sbmock temperature 3700")
helper.wait_output("Force shutdown")
helper.ec_command("sbmock temperature 2981")
time.sleep(1)
# While powered on and discharging, under-temperature should trigger
# system shutdown
helper.ec_command("powermock on")
helper.ec_command("sbmock temperature 2600")
helper.wait_output("Force shutdown")
helper.ec_command("sbmock temperature 2981")
# While powered on and charging, over-temperature should stop battery
# from charging
consume_charge_state(helper)
helper.ec_command("gpiomock AC_PRESENT 1")
wait_charge_state(helper, "charge")
helper.ec_command("powermock on")
helper.ec_command("sbmock temperature 3700")
wait_charge_state(helper, "idle")
helper.ec_command("sbmock temperature 2981")
wait_charge_state(helper, "charge")
# While powered on and charging, under-temperature should stop battery
# from charging
helper.ec_command("sbmock temperature 2600")
wait_charge_state(helper, "idle")
helper.ec_command("sbmock temperature 2981")
wait_charge_state(helper, "charge")
return True # PASS !
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