1 # Copyright 2015 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 bluetooth playback test using the Chameleon board.""" 6 7 import logging 8 import os 9 import time 10 11 from autotest_lib.client.bin import utils 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_AudioBasicBluetoothPlayback(audio_test.AudioTest): 21 """Server side bluetooth playback audio test. 22 23 This test talks to a Chameleon board and a Cros device to verify 24 bluetooth playback audio function of the Cros device. 25 26 """ 27 version = 1 28 DELAY_AFTER_DISABLING_MODULE_SECONDS = 30 29 DELAY_AFTER_DISCONNECT_SECONDS = 5 30 DELAY_AFTER_ENABLING_MODULE_SECONDS = 10 31 DELAY_AFTER_RECONNECT_SECONDS = 5 32 DELAY_BEFORE_RECORD_SECONDS = 0.5 33 RECORD_SECONDS = 5 34 SUSPEND_SECONDS = 30 35 RESUME_TIMEOUT_SECS = 60 36 PRC_RECONNECT_TIMEOUT = 60 37 BLUETOOTH_RECONNECT_TIMEOUT_SECS = 30 38 DELAY_FOR_A2DP_RECONNECT_AFTER_SUSPEND = 10 39 40 def disconnect_connect_bt(self, link): 41 """Performs disconnect and connect BT module 42 43 @param link: binder link to control BT adapter 44 45 """ 46 47 logging.info("Disconnecting BT module...") 48 link.adapter_disconnect_module() 49 time.sleep(self.DELAY_AFTER_DISCONNECT_SECONDS) 50 audio_test_utils.check_audio_nodes(self.audio_facade, 51 (['INTERNAL_SPEAKER'], None)) 52 logging.info("Connecting BT module...") 53 link.adapter_connect_module() 54 time.sleep(self.DELAY_AFTER_RECONNECT_SECONDS) 55 56 57 def disable_enable_bt(self, link): 58 """Performs turn off and then on BT module 59 60 @param link: binder link to control BT adapter 61 62 """ 63 64 logging.info("Turning off BT module...") 65 link.disable_bluetooth_module() 66 time.sleep(self.DELAY_AFTER_DISABLING_MODULE_SECONDS) 67 audio_test_utils.check_audio_nodes(self.audio_facade, 68 (['INTERNAL_SPEAKER'], None)) 69 logging.info("Turning on BT module...") 70 link.enable_bluetooth_module() 71 time.sleep(self.DELAY_AFTER_ENABLING_MODULE_SECONDS) 72 logging.info("Connecting BT module...") 73 link.adapter_connect_module() 74 time.sleep(self.DELAY_AFTER_RECONNECT_SECONDS) 75 76 77 def bluetooth_nodes_plugged(self): 78 """Checks if bluetooth nodes are plugged. 79 80 @returns: True if bluetooth nodes are plugged. False otherwise. 81 82 """ 83 return audio_test_utils.bluetooth_nodes_plugged(self.audio_facade) 84 85 86 def dump_logs_after_nodes_changed(self): 87 """Dumps the log after unexpected NodesChanged signal happens.""" 88 audio_test_utils.dump_cros_audio_logs( 89 self.host, self.audio_facade, self.resultsdir, 90 'after_nodes_changed') 91 92 93 def run_once(self, host, suspend=False, 94 disable=False, disconnect=False, check_quality=False): 95 """Running Bluetooth basic audio tests 96 97 @param host: device under test host 98 @param suspend: suspend flag to enable suspend before play/record 99 @param disable: disable flag to disable BT module before play/record 100 @param disconnect: disconnect flag to disconnect BT module 101 before play/record 102 @param check_quality: flag to check audio quality. 103 104 """ 105 self.host = host 106 golden_file = audio_test_data.FREQUENCY_TEST_FILE 107 108 factory = remote_facade_factory.RemoteFacadeFactory( 109 host, results_dir=self.resultsdir) 110 self.audio_facade = factory.create_audio_facade() 111 112 chameleon_board = host.chameleon 113 chameleon_board.setup_and_reset(self.outputdir) 114 115 widget_factory = chameleon_audio_helper.AudioWidgetFactory( 116 factory, host) 117 118 source = widget_factory.create_widget( 119 chameleon_audio_ids.CrosIds.BLUETOOTH_HEADPHONE) 120 bluetooth_widget = widget_factory.create_widget( 121 chameleon_audio_ids.PeripheralIds.BLUETOOTH_DATA_RX) 122 recorder = widget_factory.create_widget( 123 chameleon_audio_ids.ChameleonIds.LINEIN) 124 125 binder = widget_factory.create_binder( 126 source, bluetooth_widget, recorder) 127 128 with chameleon_audio_helper.bind_widgets(binder): 129 130 audio_test_utils.dump_cros_audio_logs( 131 host, self.audio_facade, self.resultsdir, 'after_binding') 132 133 # For DUTs with permanently connected audio jack cable 134 # Bluetooth output node should be selected explicitly. 135 output_nodes, _ = self.audio_facade.get_plugged_node_types() 136 if 'HEADPHONE' in output_nodes or 'LINEOUT' in output_nodes: 137 self.audio_facade.set_chrome_active_node_type('BLUETOOTH', 138 None) 139 # Checks the node selected by Cras is correct. 140 audio_test_utils.check_audio_nodes(self.audio_facade, 141 (['BLUETOOTH'], None)) 142 143 self.audio_facade.set_selected_output_volume(80) 144 145 # Starts playing, waits for some time, and then starts recording. 146 # This is to avoid artifact caused by codec initialization. 147 source.set_playback_data(golden_file) 148 149 # Create link to control BT adapter. 150 link = binder.get_binders()[0].get_link() 151 152 if disable: 153 self.disable_enable_bt(link) 154 if disconnect: 155 self.disconnect_connect_bt(link) 156 if suspend: 157 audio_test_utils.suspend_resume(host, self.SUSPEND_SECONDS) 158 159 utils.poll_for_condition(condition=factory.ready, 160 timeout=self.PRC_RECONNECT_TIMEOUT, 161 desc='multimedia server reconnect') 162 163 if disable or disconnect or suspend: 164 audio_test_utils.dump_cros_audio_logs( 165 host, self.audio_facade, self.resultsdir, 166 'after_action') 167 168 # Gives DUT some time to auto-reconnect bluetooth after resume. 169 if suspend: 170 utils.poll_for_condition( 171 condition=self.bluetooth_nodes_plugged, 172 timeout=self.BLUETOOTH_RECONNECT_TIMEOUT_SECS, 173 desc='bluetooth node auto-reconnect after suspend') 174 # Delay some time for A2DP to be reconnected. 175 # Normally this happens several seconds after HSP is 176 # reconnected. However, there is no event what we can wait for, 177 # so just wait some time. 178 time.sleep(self.DELAY_FOR_A2DP_RECONNECT_AFTER_SUSPEND) 179 180 with audio_test_utils.monitor_no_nodes_changed( 181 self.audio_facade, self.dump_logs_after_nodes_changed): 182 # Checks the node selected by Cras is correct again. 183 audio_test_utils.check_audio_nodes(self.audio_facade, 184 (['BLUETOOTH'], None)) 185 186 logging.info('Start playing %s on Cros device', 187 golden_file.path) 188 189 source.start_playback() 190 191 time.sleep(self.DELAY_BEFORE_RECORD_SECONDS) 192 logging.info('Start recording from Chameleon.') 193 recorder.start_recording() 194 195 time.sleep(self.RECORD_SECONDS) 196 197 recorder.stop_recording() 198 logging.info('Stopped recording from Chameleon.') 199 200 audio_test_utils.dump_cros_audio_logs( 201 host, self.audio_facade, self.resultsdir, 202 'after_recording') 203 204 recorder.read_recorded_binary() 205 logging.info('Read recorded binary from Chameleon.') 206 207 recorded_file = os.path.join(self.resultsdir, "recorded.raw") 208 logging.info('Saving recorded data to %s', recorded_file) 209 recorder.save_file(recorded_file) 210 211 # Removes the beginning of recorded data. This is to avoid artifact 212 # caused by Chameleon codec initialization in the beginning of 213 # recording. 214 recorder.remove_head(0.5) 215 216 recorded_file = os.path.join(self.resultsdir, "recorded_clipped.raw") 217 logging.info('Saving clipped data to %s', recorded_file) 218 recorder.save_file(recorded_file) 219 220 # Compares data by frequency. Audio signal recorded by microphone has 221 # gone through analog processing and through the air. 222 # This suffers from codec artifacts and noise on the path. 223 # Comparing data by frequency is more robust than comparing by 224 # correlation, which is suitable for fully-digital audio path like USB 225 # and HDMI. 226 audio_test_utils.check_recorded_frequency( 227 golden_file, recorder, check_anomaly=check_quality) 228
