1 # Copyright 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 HDMI audio test using the Chameleon board.""" 6 7 import logging 8 import os 9 import threading 10 import time 11 12 from autotest_lib.client.cros.audio import audio_test_data 13 from autotest_lib.client.cros.chameleon import audio_test_utils 14 from autotest_lib.client.cros.chameleon import chameleon_audio_helper 15 from autotest_lib.client.cros.chameleon import chameleon_audio_ids 16 from autotest_lib.server.cros.audio import audio_test 17 from autotest_lib.server.cros.multimedia import remote_facade_factory 18 19 20 class audio_AudioBasicHDMI(audio_test.AudioTest): 21 """Server side HDMI audio test. 22 23 This test talks to a Chameleon board and a Cros device to verify 24 HDMI audio function of the Cros device. 25 26 """ 27 version = 2 28 DELAY_BEFORE_PLAYBACK = 2 29 DELAY_AFTER_PLAYBACK = 2 30 CONNECT_TIMEOUT_SEC = 30 31 SUSPEND_SEC = 15 32 WAIT_TO_REBIND_SEC = 15 33 WEB_PLAYBACK_SEC = 15 34 35 def cleanup(self): 36 """Restore the CPU scaling governor mode.""" 37 self._system_facade.set_scaling_governor_mode(0, self._original_mode) 38 logging.debug('Set CPU0 mode to %s', self._original_mode) 39 40 41 def set_high_performance_mode(self): 42 """Set the CPU scaling governor mode to performance mode.""" 43 self._original_mode = self._system_facade.set_scaling_governor_mode( 44 0, 'performance') 45 logging.debug('Set CPU0 scaling governor mode to performance, ' 46 'original_mode: %s', self._original_mode) 47 48 49 def playback_and_suspend(self, audio_facade, while_playback): 50 """ Does playback and suspend-resume. 51 52 @param audio_facade: audio facade to check nodes. 53 @param while_playback: whether to play when suspending. 54 """ 55 if while_playback: 56 logging.info('Playing audio served on the web...') 57 web_file = audio_test_data.HEADPHONE_10MIN_TEST_FILE 58 file_url = getattr(web_file, 'url', None) 59 browser_facade = self.factory.create_browser_facade() 60 tab_descriptor = browser_facade.new_tab(file_url) 61 time.sleep(self.WEB_PLAYBACK_SEC) 62 logging.info('Suspending...') 63 boot_id = self.host.get_boot_id() 64 self.host.suspend(suspend_time=self.SUSPEND_SEC) 65 self.host.test_wait_for_resume(boot_id, self.CONNECT_TIMEOUT_SEC) 66 logging.info('Resumed and back online.') 67 time.sleep(self.WAIT_TO_REBIND_SEC) 68 69 # Stop audio playback by closing the browser tab. 70 if while_playback: 71 browser_facade.close_tab(tab_descriptor) 72 audio_test_utils.check_audio_nodes(audio_facade, 73 (['HDMI'], None)) 74 75 76 def run_once(self, host, suspend=False, while_playback=False): 77 """Running basic HDMI audio tests. 78 79 @param host: device under test host 80 @param suspend: whether to suspend 81 @param while_playback: whether to suspend while audio playback 82 83 """ 84 golden_file = audio_test_data.SWEEP_TEST_FILE 85 self.host = host 86 87 # Dump audio diagnostics data for debugging. 88 chameleon_board = host.chameleon 89 self.factory = remote_facade_factory.RemoteFacadeFactory( 90 host, results_dir=self.resultsdir) 91 92 # For DUTs with permanently connected audio jack cable 93 # connecting HDMI won't switch automatically the node. Adding 94 # audio_jack_plugged flag to select HDMI node after binding. 95 audio_facade = self.factory.create_audio_facade() 96 output_nodes, _ = audio_facade.get_selected_node_types() 97 audio_jack_plugged = False 98 if output_nodes == ['HEADPHONE']: 99 audio_jack_plugged = True 100 logging.debug('Found audio jack plugged!') 101 102 self._system_facade = self.factory.create_system_facade() 103 self.set_high_performance_mode() 104 105 chameleon_board.setup_and_reset(self.outputdir) 106 107 widget_factory = chameleon_audio_helper.AudioWidgetFactory( 108 self.factory, host) 109 110 source = widget_factory.create_widget( 111 chameleon_audio_ids.CrosIds.HDMI) 112 recorder = widget_factory.create_widget( 113 chameleon_audio_ids.ChameleonIds.HDMI) 114 binder = widget_factory.create_binder(source, recorder) 115 116 with chameleon_audio_helper.bind_widgets(binder): 117 audio_test_utils.dump_cros_audio_logs( 118 host, audio_facade, self.resultsdir, 'after_binding') 119 120 # HDMI node needs to be selected, when audio jack is plugged 121 if audio_jack_plugged: 122 audio_facade.set_chrome_active_node_type('HDMI', None) 123 audio_test_utils.check_audio_nodes(audio_facade, 124 (['HDMI'], None)) 125 126 # Suspend after playing audio (if directed) and resume 127 # before the HDMI audio test. 128 if suspend: 129 self.playback_and_suspend(audio_facade, while_playback) 130 131 source.set_playback_data(golden_file) 132 133 logging.info('Start recording from Chameleon.') 134 recorder.start_recording() 135 136 time.sleep(self.DELAY_BEFORE_PLAYBACK) 137 138 logging.info('Start playing %s on Cros device', 139 golden_file.path) 140 source.start_playback(blocking=True) 141 142 logging.info('Stopped playing %s on Cros device', 143 golden_file.path) 144 time.sleep(self.DELAY_AFTER_PLAYBACK) 145 146 audio_test_utils.dump_cros_audio_logs( 147 host, audio_facade, self.resultsdir, 'after_recording') 148 149 recorder.stop_recording() 150 logging.info('Stopped recording from Chameleon.') 151 recorder.read_recorded_binary() 152 153 recorded_file = os.path.join(self.resultsdir, "recorded.raw") 154 logging.info('Saving recorded data to %s', recorded_file) 155 recorder.save_file(recorded_file) 156 157 audio_test_utils.compare_recorded_correlation(golden_file, recorder) 158
