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This test checks charging state machine works correctly: - Charge when AC plugged. Discharge when AC unplugged. - Shutdown when over/under-temperature during discharging. - Stop charging when over/under-temperature during charging. BUG=chrome-os-partner:10270 TEST=Test passed Change-Id: I460645c70f5dcd30e258c43956ffe416c8bce906 Reviewed-on: https://gerrit.chromium.org/gerrit/26383 Reviewed-by: Rong Chang <rongchang@chromium.org> Commit-Ready: Vic Yang <victoryang@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org>
82 lines
2.8 KiB
Python
82 lines
2.8 KiB
Python
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Charging state machine unit test
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#
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import time
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def consume_charge_state(helper):
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try:
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while True:
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helper.wait_output("Charge state \S+ -> \S+",
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use_re=True,
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timeout=1)
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except:
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pass
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def wait_charge_state(helper, state):
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helper.wait_output("Charge state \S+ -> %s" % state, use_re=True)
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def test(helper):
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helper.wait_output("--- UART initialized")
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# Check charge when AC present
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consume_charge_state(helper)
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helper.ec_command("gpiomock AC_PRESENT 1")
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wait_charge_state(helper, "charge")
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# Check discharge when AC not present
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helper.ec_command("gpiomock AC_PRESENT 0")
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wait_charge_state(helper, "discharge")
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# Check charge current
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helper.ec_command("sbmock desire_current 2800")
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helper.ec_command("gpiomock AC_PRESENT 1")
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helper.wait_output("Charger set current: 2800")
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# Check charger voltage
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helper.ec_command("gpiomock AC_PRESENT 0")
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wait_charge_state(helper, "discharge")
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helper.ec_command("sbmock desire_voltage 7500")
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helper.ec_command("gpiomock AC_PRESENT 1")
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helper.wait_output("Charger set voltage: 7500")
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# While powered on and discharging, over-temperature should trigger
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# system shutdown
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helper.ec_command("gpiomock AC_PRESENT 0")
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wait_charge_state(helper, "discharge")
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helper.ec_command("powermock on")
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helper.ec_command("sbmock temperature 3700")
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helper.wait_output("Force shutdown")
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helper.ec_command("sbmock temperature 2981")
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time.sleep(1)
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# While powered on and discharging, under-temperature should trigger
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# system shutdown
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helper.ec_command("powermock on")
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helper.ec_command("sbmock temperature 2600")
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helper.wait_output("Force shutdown")
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helper.ec_command("sbmock temperature 2981")
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# While powered on and charging, over-temperature should stop battery
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# from charging
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consume_charge_state(helper)
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helper.ec_command("gpiomock AC_PRESENT 1")
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wait_charge_state(helper, "charge")
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helper.ec_command("powermock on")
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helper.ec_command("sbmock temperature 3700")
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wait_charge_state(helper, "idle")
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helper.ec_command("sbmock temperature 2981")
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wait_charge_state(helper, "charge")
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# While powered on and charging, under-temperature should stop battery
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# from charging
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helper.ec_command("sbmock temperature 2600")
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wait_charge_state(helper, "idle")
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helper.ec_command("sbmock temperature 2981")
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wait_charge_state(helper, "charge")
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return True # PASS !
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