| #!/usr/bin/python2 |
| # |
| # Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| __author__ = 'kdlucas@chromium.org (Kelly Lucas)' |
| |
| import logging, re |
| |
| from autotest_lib.client.bin import test, utils |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.cros.graphics import graphics_utils |
| |
| _SUPPORTED_LVDS_RESOLUTIONS = ['1280x800', '1366x768'] |
| |
| _MODETEST_COMMAND = 'modetest -c' |
| _MODETEST_CONNECTED = 'connected' |
| _MODETEST_CONNECTOR_LVDS = 'LVDS' |
| # The list of connectors in this regex pattern comes from an array called |
| # connector_type_names in the libdrm file caled modetest.c . |
| _MODETEST_CONNECTOR_PATTERN = (r'\d+\s+\d+\s+(connected|disconnected)\s+' |
| r'(unknown|VGA|DVI-I|DVI-D|DVI-A|composite|' |
| r's-video|LVDS|component|9-pin DIN|HDMI-A|' |
| r'HDMI-B|TV|eDP)\s+\d+x\d+\s+\d+\s+\d+') |
| _MODETEST_MODE_PATTERN = (r'\s+.+\d+\s+(\d+)\s+\d+\s+\d+\s+\d+\s+(\d+)\s+\d+\s+' |
| r'\d+\s+\d+\s+flags:') |
| |
| _LVDS_UNSUPPORTED_MESSAGE = '%s is not a supported LVDS resolution' |
| |
| class hardware_Resolution(test.test): |
| """ |
| Verify the current screen resolution is supported. |
| """ |
| version = 1 |
| |
| def is_lvds_res(self, res, xrandr_output): |
| """ |
| Returns True if the supplied resolution is associated with |
| an LVDS connection. |
| """ |
| search_str = r'LVDS\d+ connected ' + res |
| for line in xrandr_output: |
| if re.match(search_str, line): |
| return True |
| |
| return False |
| |
| def get_current_res(self, xrandr_output): |
| """ |
| Get the current video resolution. |
| Returns: |
| string: represents the video resolution. |
| """ |
| for line in xrandr_output: |
| if 'Screen 0' in line: |
| sections = line.split(',') |
| for item in sections: |
| if 'current' in item: |
| res = item.split() |
| return '%s%s%s' % (res[1], res[2], res[3]) |
| |
| return None |
| |
| def run_once(self): |
| modetest_output = utils.system_output(_MODETEST_COMMAND) |
| logging.info('modetest output: \n{0}'.format(modetest_output)) |
| |
| # True if the information being read is about a connected LVDS |
| # connector, False otherwise |
| connected_lvds = False |
| |
| for line in modetest_output.splitlines(): |
| connector_match = re.match(_MODETEST_CONNECTOR_PATTERN, line) |
| if connector_match is not None: |
| connected_lvds = False |
| if connector_match.group(1) == _MODETEST_CONNECTED: |
| if connector_match.group(2) == _MODETEST_CONNECTOR_LVDS: |
| connected_lvds = True |
| |
| if connected_lvds: |
| mode_match = re.match(_MODETEST_MODE_PATTERN, line) |
| if mode_match is not None: |
| res = '{0}x{1}'.format(int(mode_match.group(1)), |
| int(mode_match.group(2))) |
| if res not in _SUPPORTED_LVDS_RESOLUTIONS: |
| raise error.TestFail(_LVDS_UNSUPPORTED_MESSAGE % res) |
