ADAS & driver assistance

VEHICLE_DRIVING_AUTOMATION_CURRENT_LEVEL

What it is

Current state of vehicle autonomy.

Defines the level of autonomy currently engaged in the vehicle from the J3016_202104 revision of the SAE standard levels 0-5, with 0 representing no autonomy and 5 representing full driving automation.

For the global area ID (0), the VehicleAreaConfig#supportedEnumValues array must be defined unless all states of VehicleAutonomousState are supported.

How the ID is built

A property ID is a 32-bit value packing four fields. Reading 0x11400f4c apart:

Field	Mask	Value	Means
Group	0xf0000000	0x10000000	SYSTEM
Area	0x0f000000	0x01000000	GLOBAL
Type	0x00ff0000	0x00400000	INT32
Ordinal	0x0000ffff	0x00000f4c	0xf4c

Reading it from an app

CarPropertyManager mgr = (CarPropertyManager)
        car.getCarManager(Car.PROPERTY_SERVICE);

int value =
        mgr.getIntProperty(VehiclePropertyIds.VEHICLE_DRIVING_AUTOMATION_CURRENT_LEVEL, 0);

This property is read-only — writes are rejected. It fires a callback whenever the value changes.