1 # Copyright 2015 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import glob 6 import logging 7 import pprint 8 from threading import Timer 9 10 from autotest_lib.client.bin.input.input_device import * 11 12 class firmwareCheckKeys(object): 13 version = 1 14 actual_output = [] 15 device = None 16 ev = None 17 18 def __init__(self): 19 for evdev in glob.glob("/dev/input/event*"): 20 device = InputDevice(evdev) 21 if device.is_keyboard(): 22 print 'keyboard device %s' % evdev 23 self.device = device 24 25 def _keyboard_input(self): 26 """Read key presses.""" 27 index = 0 28 while True: 29 self.ev.read(self.device.f) 30 if self.ev.code != KEY_RESERVED: 31 print "EventCode is %d value is %d" % (self.ev.code, self.ev.value) 32 if self.ev.type == 0 or self.ev.type == 1: 33 self.actual_output.append(self.ev.code) 34 index = index + 1 35 36 def check_keys(self, expected_sequence): 37 """Wait for key press for 10 seconds. 38 39 @return number of input keys captured, -1 for error. 40 """ 41 if not self.device: 42 logging.error("Could not find a keyboard device") 43 return -1 44 45 self.ev = InputEvent() 46 Timer(0, self._keyboard_input).start() 47 48 time.sleep(10) 49 50 # Keypresses will have a tendency to repeat as there is delay between 51 # the down and up events. We're not interested in precisely how many 52 # repeats of the key there is, just what is the sequence of keys, 53 # so, we will make the list unique. 54 uniq_actual_output = sorted(list(set(self.actual_output))) 55 if uniq_actual_output != expected_sequence: 56 print 'Keys mismatched %s' % pprint.pformat(uniq_actual_output) 57 return -1 58 print 'Key match expected: %s' % pprint.pformat(uniq_actual_output) 59 return len(uniq_actual_output) 60 61
