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rk35xx-android14/hardware/interfaces/automotive/vehicle/aidl/impl
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Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 		2 years ago
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default_config Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
fake_impl Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
grpc Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
hardware Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
proto Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
utils Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
vhal Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
Android.bp Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago
README.md Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a) 2 years ago

README.md

AIDL VHAL libraries and reference implementation.

This directory stores the libraries useful for implementing vendor AIDL VHAL. This directory also stores a reference fake implementation for AIDL VHAL.

default_config

Stores the default vehicle property configurations for reference vehicle HAL. Vendor implementation could copy this library but must update the configuration to meet their own requirements, e.g. enable or disable certain properties or update the initial value for certain properties.

fake_impl

Contains libraries used specifically for the fake reference VHAL implementation. These libraries are for test only and must not be directly used for vendor VHAL implementation.

These libraries contain test-spcific logic and must not run directly on a real vehicle.

grpc

Stores code for GRPC based VHAL implementation.

hardware

Defines an interface IVehicleHardware.h which vendor must implement for vehicle-specific logic if they want to follow our reference VHAL design.

proto

Stores Some protobuf files translated from AIDL VHAL interface types. These files are used in GRPC VHAL implementation.

utils

Defines a library VehicleHalUtils which provides useful utility functions for VHAL implementation. Vendor VHAL could use this library.

vhal

Defines a library DefaultVehicleHal which provides generic logic for all VHAL implementations (including reference VHAL). Vendor VHAL implementation could use this library, along with their own implementation for IVehicleHardware interface.

Also defines a binary android.hardware.automotive.vehicle@V1-default-service which is the reference VHAL implementation. It implements IVehicle.aidl interface. It uses DefaultVehicleHal, along with FakeVehicleHardware (in fake_impl). It simulates the vehicle bus interaction by using an in-memory map. Meaning that all properties (except for some special ones) are just written into a hash map and read from a hash map without relying on any hardware. As a result, the reference implementation can run on emulator or any host environment.

Vendor must not directly use the reference implementation for a real vehicle.