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 """This is a server side stressing DUT by switching Chameleon EDID.""" 6 7 import glob 8 import logging 9 import os 10 import xmlrpclib 11 12 from autotest_lib.client.bin import utils 13 from autotest_lib.client.common_lib import error 14 from autotest_lib.client.cros.chameleon import chameleon_port_finder 15 from autotest_lib.client.cros.chameleon import chameleon_screen_test 16 from autotest_lib.client.cros.chameleon import edid 17 from autotest_lib.server import test 18 from autotest_lib.server.cros.multimedia import remote_facade_factory 19 20 21 class display_EdidStress(test.test): 22 """Server side external display test. 23 24 This test switches Chameleon EDID from among a large pool of EDIDs, tests 25 DUT recognizes the emulated monitor and emits the correct video signal to 26 Chameleon. 27 """ 28 version = 1 29 30 _EDID_TYPES = {'HDMI': {'HDMI', 'MHL', 'DVI'}, 31 'DP': {'DP'}, 32 'VGA': {'VGA'}} 33 34 def run_once(self, host, edid_set): 35 36 def _get_edid_type(s): 37 i = s.rfind('_') + 1 38 j = len(s) - len('.txt') 39 return s[i:j].upper() 40 41 edid_path = os.path.join(self.bindir, 'test_data', 'edids', 42 edid_set, '*') 43 44 factory = remote_facade_factory.RemoteFacadeFactory(host) 45 display_facade = factory.create_display_facade() 46 chameleon_board = host.chameleon 47 48 chameleon_board.setup_and_reset(self.outputdir) 49 finder = chameleon_port_finder.ChameleonVideoInputFinder( 50 chameleon_board, display_facade) 51 for chameleon_port in finder.iterate_all_ports(): 52 screen_test = chameleon_screen_test.ChameleonScreenTest( 53 chameleon_port, display_facade, self.outputdir) 54 55 logging.info('See the display on Chameleon: port %d (%s)', 56 chameleon_port.get_connector_id(), 57 chameleon_port.get_connector_type()) 58 59 connector = chameleon_port.get_connector_type() 60 supported_types = self._EDID_TYPES[connector] 61 62 failed_edids = [] 63 for filepath in glob.glob(edid_path): 64 filename = os.path.basename(filepath) 65 edid_type = _get_edid_type(filename) 66 if edid_type not in supported_types: 67 logging.info('Skip EDID: %s...', filename) 68 continue 69 70 logging.info('Use EDID: %s...', filename) 71 try: 72 with chameleon_port.use_edid( 73 edid.Edid.from_file(filepath, skip_verify=True)): 74 resolution = utils.wait_for_value_changed( 75 display_facade.get_external_resolution, 76 old_value=None) 77 if resolution is None: 78 raise error.TestFail('No external display detected on DUT') 79 if screen_test.test_resolution(resolution): 80 raise error.TestFail('Resolution test failed') 81 except (error.TestFail, xmlrpclib.Fault) as e: 82 logging.warning(e) 83 logging.error('EDID not supported: %s', filename) 84 failed_edids.append(filename) 85 86 if failed_edids: 87 message = ('Total %d EDIDs not supported: ' % len(failed_edids) 88 + ', '.join(failed_edids)) 89 logging.error(message) 90 raise error.TestFail(message) 91
