Infineon Radar AIDL HAL

This is a hardware abstraction layer (HAL) for accessing Infineon Xensiv radars within android OS.

This HAL uses AIDL only, hence it is a "binderized" HAL. That is, there is a HAL "server" which loads the HAL implementation and makes it available to the "client" (usually a Java system service) via /dev/binder.

Such HAL "servers" are system services and can be listed using service list. In our case "server" is called vendor.infineon.radar.IRadarSdk/default, it is what we start in service.cpp with an NDK function AServiceManager_addService(). Hence you can check if it is running via:

$ adb shell service list | grep infineon

There is more information in dumpsys:

$ adb shell dumpsys vendor.infineon.radar.IRadarSdk/default

How to build

Refer to https://github.com/Paradox-Cat-GmbH/aosp.local-manifests.paradoxcat-infineon-radar

How to run development version

You do not have to flash the whole vendor image every time you change the HAL service. It is enough to:

$ m vendor.infineon.radar@1.0-service
$ adb sync vendor
$ adb shell killall vendor.infineon.radar@1.0-service

The HAL should restart.

How to run tests

Make sure target device is discoverable via adb devices, then execute this:

$ atest VtsHalRadarTest

NOTE: this does not always work via wireless adb (device cannot be re-attached). When testing with sensor connected to USB, execute it manually instead:

$ adb connect IP:PORT
$ adb root # it will lose connection and hang. Simply Ctrl+C it and reconnect to new port
$ adb remount
$ adb sync data
$ adb shell /data/nativetest64/VtsHalRadarTest/VtsHalRadarTest

NOTE: currently VTS tests stdout and stderr are redirected to logcat. It is easier to debug that way because one sees HAL logs interlaced with VTS logs.