70 lines
2.4 KiB
Python
70 lines
2.4 KiB
Python
# Copyright 2015 The Android Open Source Project
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
import time
|
|
|
|
DISPLAY_LEVEL = 96 # [0:255] Depends on tablet model. Adjust for best result.
|
|
DISPLAY_CMD_WAIT = 0.5 # seconds. Screen commands take time to have effect
|
|
DISPLAY_TIMEOUT = 1800000 # ms
|
|
|
|
|
|
def main():
|
|
"""Power up and unlock screen as needed."""
|
|
screen_id = None
|
|
for s in sys.argv[1:]:
|
|
if s[:7] == 'screen=' and len(s) > 7:
|
|
screen_id = s[7:]
|
|
|
|
if not screen_id:
|
|
print 'Error: need to specify screen serial'
|
|
assert False
|
|
|
|
# turn on screen if necessary and unlock
|
|
cmd = ('adb -s %s shell dumpsys display | egrep "mScreenState"'
|
|
% screen_id)
|
|
process = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE)
|
|
cmd_ret = process.stdout.read()
|
|
screen_state = re.split(r'[s|=]', cmd_ret)[-1]
|
|
power_event = ('adb -s %s shell input keyevent POWER' % screen_id)
|
|
subprocess.Popen(power_event.split())
|
|
time.sleep(DISPLAY_CMD_WAIT)
|
|
if 'ON' in screen_state:
|
|
print 'Screen was ON. Toggling to refresh.'
|
|
subprocess.Popen(power_event.split())
|
|
time.sleep(DISPLAY_CMD_WAIT)
|
|
else:
|
|
print 'Screen was OFF. Powered ON.'
|
|
unlock = ('adb -s %s wait-for-device shell wm dismiss-keyguard'
|
|
% screen_id)
|
|
subprocess.Popen(unlock.split())
|
|
time.sleep(DISPLAY_CMD_WAIT)
|
|
|
|
# set brightness
|
|
print 'Tablet display brightness set to %d' % DISPLAY_LEVEL
|
|
bright = ('adb -s %s shell settings put system screen_brightness %d'
|
|
% (screen_id, DISPLAY_LEVEL))
|
|
subprocess.Popen(bright.split())
|
|
time.sleep(DISPLAY_CMD_WAIT)
|
|
|
|
# set screen to dim at max time (30min)
|
|
stay_bright = ('adb -s %s shell settings put system screen_off_timeout %d'
|
|
% (screen_id, DISPLAY_TIMEOUT))
|
|
subprocess.Popen(stay_bright.split())
|
|
time.sleep(DISPLAY_CMD_WAIT)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|