1 # Copyright (c) 2014 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 logging 6 import os 7 8 from autotest_lib.client.bin import utils 9 from autotest_lib.client.common_lib import error 10 from autotest_lib.client.cros import touch_playback_test_base 11 12 13 class touch_WakeupSource(touch_playback_test_base.touch_playback_test_base): 14 """Check that touchpad/touchscreen are set/not set as wake sources.""" 15 version = 1 16 17 # Devices whose touchpads should not be a wake source. 18 _NO_TOUCHPAD_WAKE = ['clapper', 'glimmer', 'veyron_minnie'] 19 20 # Devices with Synaptics touchpads that do not report wake source, 21 # or reference platforms like Rambi which are broken but do not ship, 22 # or devices like Cyan which don't report this way: crosbug.com/p/46019. 23 _INVALID_TOUCHPADS = ['x86-alex', 'x86-alex_he', 'x86-zgb', 'x86-zgb_he', 24 'x86-mario', 'stout', 'rambi', 'cyan'] 25 _INVALID_TOUCHSCREENS = ['cyan', 'sumo', 'ultima'] 26 27 def _find_wakeup_file(self, input_type): 28 """Return path to wakeup file or None. 29 30 If the file does not exist, check the parent bus for wakeup rules 31 as well, as is the setup for some devices. 32 33 @param input_type: e.g. 'touchpad' or 'mouse'. See parent class for 34 all options. 35 36 @raises: TestError if input_type lacks required information. 37 38 """ 39 device_dir = self.player.devices[input_type].device_dir 40 if not device_dir: 41 raise error.TestError('No device directory for %s!' % input_type) 42 43 filename = os.path.join(device_dir, 'power', 'wakeup') 44 if not os.path.isfile(filename): 45 logging.info('%s not found for %s', filename, input_type) 46 47 # Look for wakeup file on parent bus instead. 48 event = self.player.devices[input_type].node.split('/')[-1] 49 50 parent = None 51 i2c_devices_dir = os.path.join('/', 'sys', 'bus', 'i2c', 'devices') 52 for device_dir in os.listdir(i2c_devices_dir): 53 event_search = os.path.join(i2c_devices_dir, device_dir, '*', 54 'input', 'input*', event) 55 match_count = utils.run('ls %s 2>/dev/null | wc -l' % ( 56 event_search)).stdout.strip() 57 if int(match_count) > 0: 58 parent = os.path.join(i2c_devices_dir, device_dir) 59 break 60 if parent is None: 61 logging.info('Could not find parent bus for %s.', input_type) 62 return None 63 64 logging.info('Parent bus of %s is %s.', input_type, parent) 65 filename = os.path.join(parent, 'power', 'wakeup') 66 if not os.path.isfile(filename): 67 logging.info('%s not found either.', filename) 68 return None 69 70 return filename 71 72 def _is_wake_source(self, input_type): 73 """Return True if the given device is a wake source, else False. 74 75 If the file does not exist, return False. 76 77 @param input_type: e.g. 'touchpad' or 'mouse'. See parent class for 78 all options. 79 80 @raises: TestError if test cannot interpret the file contents. 81 82 """ 83 filename = self._find_wakeup_file(input_type) 84 if filename is None: 85 return False 86 87 result = utils.run('cat %s' % filename).stdout.strip() 88 if result == 'enabled': 89 logging.info('Found that %s is a wake source.', input_type) 90 return True 91 elif result == 'disabled': 92 logging.info('Found that %s is not a wake source.', input_type) 93 return False 94 raise error.TestError('Wakeup file for %s said "%s".' % 95 (input_type, result)) 96 97 def run_once(self): 98 """Entry point of this test.""" 99 # Check that touchpad is a wake source for all but the excepted boards. 100 if (self._has_touchpad and 101 self._platform not in self._INVALID_TOUCHPADS): 102 if self._platform in self._NO_TOUCHPAD_WAKE: 103 if self._is_wake_source('touchpad'): 104 raise error.TestFail('Touchpad is a wake source!') 105 else: 106 if not self._is_wake_source('touchpad'): 107 raise error.TestFail('Touchpad is not a wake source!') 108 109 # Check that touchscreen is not a wake source (if present). 110 # Devices without a touchpad should have touchscreen as wake source. 111 if (self._has_touchscreen and 112 self._platform not in self._INVALID_TOUCHSCREENS): 113 touchscreen_wake = self._is_wake_source('touchscreen') 114 if self._has_touchpad and touchscreen_wake: 115 raise error.TestFail('Touchscreen is a wake source!') 116 if not self._has_touchpad and not touchscreen_wake: 117 raise error.TestFail('Touchscreen is not a wake source!') 118 119
