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jianglk.darker
7ee447c011
|
4 months ago | |
|---|---|---|
| .. | ||
| README.md | 4 months ago | |
| VehicleHalProto_pb2.py | 4 months ago | |
| __init__.py | 4 months ago | |
| diagjson.example | 4 months ago | |
| diagnostic_builder.py | 4 months ago | |
| diagnostic_injector.py | 4 months ago | |
| diagnostic_sensors.py | 4 months ago | |
| driving_info_generator.py | 4 months ago | |
| gui.py | 4 months ago | |
| obd2_to_diagjson.py | 4 months ago | |
| prop_event_simulator.py | 4 months ago | |
| user_action_generator.py | 4 months ago | |
| vhal_const_generate.py | 4 months ago | |
| vhal_consts_2_0.py | 4 months ago | |
| vhal_emulator.py | 4 months ago | |
| vhal_emulator_test.py | 4 months ago | |
| vhal_prop_simulator.py | 4 months ago | |
README.md
VHAL Host Emulator
This is a collection of python modules as tools for VHAL development.
[TOC]
vhal_emulator.py
This allow you to create script to interate with the Vehicle HAL in an AAOS device from a host.
- It sends and receives messages to/from the Vehicle HAL via port forwarding over ADB to communicate with the AAOS device.
- On the device side, VHAL module VehicleService creates VehicleEmulator to
setup SocketComm to serve the requests.
- hardware/interfaces/automotive/vehicle/2.0/default/VehicleService.cpp
- hardware/interfaces/automotive/vehicle/2.0/default/impl/vhal_v2_0/VehicleEmulator.cpp
- hardware/interfaces/automotive/vehicle/2.0/default/impl/vhal_v2_0/SocketComm.cpp
- vhal_emulator_test.py tests the Vehicle HAL via adb socket.
- Note: This may outdated becuase there is no dedicated resrouce. Contribution is welcome.
vhal_const_generate.py
This generates vhal_consts_2_0.py to update definitions for property ID, value type, zone, etc. from the types.hal. Run this script whenever types.hal is changed.
- Must re-generate when the types.hal file changes.
packages/services/Car/tools/emulator/vhal_const_generate.py
- hardware/interfaces/automotive/vehicle/2.0/types.hal
VehicleHalProto_pb2.py
This defines message interface to VHAL Emulator from VehicleHalProto.proto.
- Must re-generate whenever the proto file changes.
- Generated from hardware/interfaces/automotive/vehicle/2.0/default/impl/vhal_v2_0/proto/VehicleHalProto.proto
protoDir=$ANDROID_BUILD_TOP/hardware/interfaces/automotive/vehicle/2.0/default/impl/vhal_v2_0/proto
outDir=$ANDROID_BUILD_TOP/packages/services/Car/tools/emulator
# or protoc if perferred
aprotoc -I=$protoDir --python_out=$outDir $protoDir/VehicleHalProto.proto
- It requires Protocol Buffers. You may build one from Android, e.g.
. build/envsetup.sh
lunch sdk_gcar_x86-userdebug
m aprotoc -j16
OBD2 Diagnostic Injector
These scripts are useful for testing the Diagnostics API
diagnostic_builder.py
- Helper class used by diagnostic_injector.py
- Stores diagnostic sensor values and bitmasks
- VehiclePropValue-compatible
diagnostic_injector.py
- Deserializes JSON into diagnostic events
- Sends over HAL Emulator Interface
- Diagnostic JSON Format example: diagjson.example
./diagnostic_injector.py ./diagjson.example
Python GUI Example
gui.py is an example to create an GUI to set the property.
- packages/services/Car/tools/emulator/gui.py
- GUI runs on host machine (PyQt4-based widgets)
- Drives VHAL on target
- Works only with default VHAL
- Interactions generate SET messages
- Supports bench testing of apps
- Easy to add support for more properties