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THE CHROMIUM PROJECTS

Diese Site durchsuchen


 * Home
 * Chromium
 * Chromium OS

QUICK LINKS

 * Report bugs
 * Discuss
 * Карта сайта

OTHER SITES

 * Chromium Blog
 * Google Chrome Extensions

Except as otherwise noted, the content of this page is licensed under a Creative
Commons Attribution 2.5 license, and examples are licensed under the BSD
License.

Chromium OS‎ > ‎Testing Home‎ > ‎


CHAMELIUM AUDIO BOARD




Inhalt

 1. 1 Introduction
 2. 2 Components
 3. 3 Bootstrap
 4. 4 Setup Chamelium Info
 5. 5 Run the test
 6. 6 Test output/input devices basic function
    1. 6.1 Output audio devices
    2. 6.2 Input audio devices
 7. 7 Advanced tests



INTRODUCTION

Chamelium audio board routes audio between four endpoints with two stereo audio
buses:
 * DUT device headphone jack
 * Chamelium FPGA board line-out/line-in
 * Peripheral speaker/microphone
 * Bluetooth audio module

It helps Chamelium automate audio testing including:
 * 3.5mm headphone
 * 3.5mm external microphone
 * Onboard internal speaker
 * Onboard internal microphone
 * Bluetooth A2DP playback
 * Bluetooth HSP/HFP playback
 * Bluetooth HSP/HFP record


COMPONENTS

 * Chamelium

> > 

 * Audio Board Block Diagram

> > 



> > 

 * Audio Board

> > 

 * Two 3-ring (TRS) audio jack cables
 * One 4-ring (TRRS) audio jack cable
 * One serial ribbon cable (connecting CN4 on audio board with J13_LTC_CON on
   FPGA)
 * USB-A to mini-USB cable
 * 3-ring (TRS) 3.5mm microphone


BOOTSTRAP

 * Connect audio board and FPGA board with the serial ribbon grey cable (see the
   assembled picture).

 * Connect audio board and Chamelium line-in and line-out (blue jack to blue
   jack, green jack to green jack) using two 3.5mm 3-ring(TRS) cables.

 * For audio jack external audio - connect tested device with audio board using
   3.5mm 4-ring (TRRS) cable.

 * For USB audio - connect tested device with the middle USB port on FPGA (top)
   board.

 * For internal speaker test - connect a mono microphone (two conductor, TS
   connector) to the pink port on the FPGA (top) board.

 * For internal microphone test - connect a speaker to black SPK port on audio
   board.

 * For Bluetooth test - Chamelium Eth MAC and audio board BT MAC should be
   related in chameleon_info.





SETUP CHAMELIUM INFO

 1. Use the interactive script ~/trunk/src/platform/chameleon/client/test_server
    to connect to chameleond server.
    ~/trunk/src/platform/chameleon/client/test_server
    --chameleon_host=<chameleon ip>

 2. Get the MAC address of chamelium: >>> p.GetMacAddress()
    
    '94:eb:2c:00:01:27'

 3. Disable the bluetooth module on audio board:
    >>> p.AudioBoardDisableBluetooth()

 4. ssh into Cros device:
    ssh chromeos1-row5-rack1-host2.cros

 5. Use bluetoothctl to turn on adapter and start scanning

localhost ~ # bluetoothctl

[NEW] Controller 7C:7A:91:9A:EE:89 Chromebook [default]

[bluetooth]# power on

Changing power on succeeded

[bluetooth]# scan on

Discovery started

[CHG] Controller 7C:7A:91:9A:EE:89 Discovering: yes

 6. Enable the bluetooth module on audio board using test_server: >>>
    p.AudioBoardResetBluetooth()

 7. In bluetoothctl console, check there is a new SX3868-3Y device being
    scanned:

[NEW] Device 00:1F:84:01:03:5B SX3868-3Y

[CHG] Device 00:1F:84:01:03:5B RSSI: -67

[CHG] Device 00:1F:84:01:03:5B RSSI: -56

[CHG] Device 00:1F:84:01:03:5B RSSI: -68

 8. Now we know Chamelium with MAC address '94:eb:2c:00:01:27' has a Bluetooth
    module with MAC address ‘00:1F:84:01:03:5B’ on its audio board.

 9. Add the mapping info to client/cros/chameleon/chameleon_info.py

_CHAMELEON_BOARD_INFO = {

       '94:eb:2c:00:00:fb': ChameleonInfo('00:1F:84:01:03:68'),

       '94:eb:2c:00:01:2b': ChameleonInfo('00:1F:84:01:03:5E'),

       '94:eb:2c:00:01:27': ChameleonInfo('00:1F:84:01:03:5B'), }





RUN THE TEST

For example, run basic headphone test on a squawks board 5 times:
test_that --board=squawks --fast --debug --args="chameleon_host=$CHAMELIUM_IP"
$DUT_IP audio_AudioBasicHeadphone --iterations 5


TEST OUTPUT/INPUT DEVICES BASIC FUNCTION


OUTPUT AUDIO DEVICES

Internal speaker - audio_AudioBasicInternalSpeakerHeadphone -
audio_AudioBasicHeadphoneHDMI/DisplayPort - audio_AudioBasicHDMIUSB headphone -
audio_AudioBasicUSBPlaybackBluetooth headphone -
audio_AudioBasicBluetoothPlayback


INPUT AUDIO DEVICES

 * Internal microphone - audio_AudioBasicInternalMicrophone
 * External microphone - audio_AudioBasicExternalMicrophone
 * USB microphone - audio_AudioBasicUSBRecord
 * Bluetooth microphone - audio_AudioBasicBluetoothRecord


ADVANCED TESTS

 * Volume control: audio_AudioVolume
 * Suspend/Resume, Reboot: audio_AudioAfterSuspend, audio_AudioAfterReboot,
   audio_AudioQualityAfterSuspend
 * Quality and artifacts: audio_AudioArtifacts
 * BT connection: audio_AudioBluetoothConnectionStability
 * BT playback + record: audio_AudioBasicBluetoothPlaybackRecord
 * USB playback + record: audio_AudioBasicUSBPlaybackRecord
 * Chrome media player: audio_MediaBasicVerification
 * WebRTC: audio_AudioWebRTCLoopback
 * ARC: audio_AudioARCPlayback, audio_AudioARCRecord

Č
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