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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.
#
# Keyboard typematic test
#
import time
KEY_PRESS_MSG = "i8042 SEND"
def expect_keypress(helper, lower_bound, upper_bound):
for i in xrange(lower_bound + 1): # Plus 1 break code
helper.wait_output(KEY_PRESS_MSG)
for i in xrange(upper_bound - lower_bound):
if helper.check_no_output(KEY_PRESS_MSG):
return True
if not helper.check_no_output(KEY_PRESS_MSG):
return False
return True
def test(helper):
# Wait for EC initialized
helper.wait_output("--- UART initialized")
# Enable keyboard scanning
helper.ec_command("kbd enable")
time.sleep(0.1) # Workaround for crosbug/p/11015
# Set typematic rate to 1000ms/500ms and hold down a key for 500ms
# Expect 1 keypress.
helper.ec_command("typematic 1000 500")
helper.ec_command("mockmatrix 1 1 1")
time.sleep(0.5)
helper.ec_command("mockmatrix 1 1 0")
if not expect_keypress(helper, 1, 1):
return False
# Hold down a key for 1200ms. Expect 2 keypress.
helper.ec_command("mockmatrix 1 1 1")
time.sleep(1.2)
helper.ec_command("mockmatrix 1 1 0")
if not expect_keypress(helper, 2, 2):
return False
# Hold down a key for 1700ms. Expect 3 keypress.
helper.ec_command("mockmatrix 1 1 1")
time.sleep(1.7)
helper.ec_command("mockmatrix 1 1 0")
if not expect_keypress(helper, 3, 3):
return False
# Hold down a key for 5400ms. Expect 9 or 10 keypress.
# Due to inevitable delay incurred by each keypress, we cannot be certain
# about the exact number of keypress. Therefore, mismatching by a small
# amount should be accepted.
helper.ec_command("mockmatrix 1 1 1")
time.sleep(5.4)
helper.ec_command("mockmatrix 1 1 0")
if not expect_keypress(helper, 9, 10):
return False
return True # PASS !
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