https://github.com/nkh-lab/aosp-ncar-vehicle-hal

AOSP VHAL example project
https://github.com/nkh-lab/aosp-ncar-vehicle-hal

android android-automotive aosp vhal

Last synced: 4 days ago
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AOSP VHAL example project

• Host: GitHub
• URL: https://github.com/nkh-lab/aosp-ncar-vehicle-hal
• Owner: nkh-lab
• Created: 2022-01-01T22:22:38.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2023-12-19T14:14:12.000Z (11 months ago)
• Last Synced: 2023-12-19T17:40:00.553Z (11 months ago)
• Topics: android, android-automotive, aosp, vhal
• Language: C++
• Homepage:
• Size: 57.6 KB
• Stars: 12
• Watchers: 3
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# aosp-ncar-vehicle-hal

AOSP VHAL example project 

Includes a dummy implementation of support for Google's `SYSTEM` properties [hardware/interfaces/automotive/vehicle/2.0/types.hal](https://android.googlesource.com/platform/hardware/interfaces/+/refs/tags/android-11.0.0_r48/automotive/vehicle/2.0/types.hal) and an example of extending with custom `VENDOR` properties [vendor/nkh-lab/interfaces/automotive/vehicle/1.0/types.hal](1.0/types.hal)

## Simulated VENDOR properties

Google's SYSTEM properties are not handled (only configured) but VENDOR properties are simulated. The values of some of them (e.g. VENDOR_TEST_1S_COUNTER, VENDOR_TEST_500MS_COUNTER) are simulated by timer, the value of others (e.g VENDOR_TEST_SYS_PROP) can be changed by setting the corresponding Android System Property, for example:

```

$ setprop debug.vendor.nkh-lab.VENDOR_TEST_SYS_PROP 6789 

```

and value update on CAR API client side, e.g. on [CAR API Hello World](https://github.com/nkh-lab/car-api-hello-world) app:

![](doc/screenshots/CarApiHelloWorld.png)

## Related projects

- [NCAR manifest](https://github.com/nkh-lab/aosp-ncar-manifest) - repo manifest project for getting AOSP source tree where given project is part of it 

- [NCAR device](https://github.com/nkh-lab/aosp-ncar-device)

- [CAR API Hello World](https://github.com/nkh-lab/car-api-hello-world) - Android CAR API usage example project