RDK Camera in RPI Reference Platform - WebPA Support - User manual - 2020 - M3

Introduction

• This page dedicated to bringing up and validation of Webpa functionality in R-Pi Zero.
• WebPA is the communication channel from Cloud to RDK based home gateway devices. It helps to manage devices from Cloud. WEBPA protocol provides functionality of read/write access to device management parameters.

Required Equipment

• Raspberry Pi 0 Device
• SD Card
• Power Cable
• OTG Cable
• Standard USB keyboard
• Mini HDMI connector
• HDMI Cable
• Television set/monitor with HDMI input

System Setup

Build Procedure

$ repo init -u "https://code.rdkcentral.com/r/rdkcmf/manifests" -m rdkc-nosrc.xml -b master

$ repo sync

$ source meta-cmf-raspberrypi/setup-environment

select meta-cmf-raspberrypi/conf/machine/raspberrypi0-rdk-camera.conf

$ bitbake rdk-generic-camera-image

Image Flash Procedure

$ sudo dd if="Image Name" of="Device Name" bs=4M

Example:

sudo dd if=rdk-generic-camera-image_default_20200130060729.rootfs.rpi-sdimg of=/dev/sdb bs=4M

WEBPA Validation Procedure

STEP 1:

Add require SSID and PSK in /etc/wpa_supplicant.conf file in below format

network={

ssid="username"

psk="password"

}

STEP 2:

Reboot the Target

After Reboot don't do step 1 and 2.

Note : Step 1 & 2 is only applicable for fresh target boot-up with new image.

STEP 3:

WiFi connection is must needed for WEBPA validation.

Check WiFi connection by using below command.

ifconfig

STEP 4:

check Parodus binary running status in RPI by using below command

ps -Af | grep parodus

STEP 5:

check Webpacamera binary running status in RPI by using below command

ps -Af | grep webpacamera

STEP 6:

Parameter fetching from client( RPI ) device

Fetch device or feature parameter detail from client( RPI ) device through parodus by using webpa server.

Command :

curl -H ’ Authorization:Basic <AUTH_TOKEN>’ -i http://<WEBPA_URL>/api/v2/devices

Example : 

curl -H 'Authorization:Basic dXNlcjp3ZWJwYQo=' -i 'http://192.168.2.75:9003/api/v2/device/mac:b827eb2e722b/config?names=Device.DeviceInfo.X_RDKCENTRAL-COM_IMAGENAME'

Output :

{"parameters":[{"name":"Device.DeviceInfo.X_RDKCENTRAL-COM_IMAGENAME","value":"RPI-CAM_stable2_20200318070913","dataType":0,"parameterCount":1,"

message":"Success"}],"statusCode":200}

Able to fetch below list parameter from client( RPI ) device.