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Commit 90af84e4 authored by Weilin Xu's avatar Weilin Xu
Browse files

Create a skeleton Rust audio control HAL 

This is to prove that rust audio control HAL can be built and can
run. The skeleton Rust audio control HAL will return UNKNOWN_ERROR
for all APIs.

Bug: 319474244
Flag: EXEMPT HAL interface change
Test: m android.hardware.automotive.audiocontrol-V4-rust-service

Change-Id: I64916b3eaa8410e0b137b5b34578710899f91324
parent ea388ef0

automotive/audiocontrol/aidl/Android.bp

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@@ -27,6 +27,9 @@ aidl_interface { 
                "com.android.car.framework",

            ],

        },

        rust: {

            enabled: true,

        },

    },

    versions_with_info: [

        {
@@ -100,3 +103,10 @@ java_defaults { 
        latest_android_hardware_automotive_audiocontrol + "-java",

    ],

}



rust_defaults {

    name: "latest_android_hardware_automotive_audiocontrol_rust",

    rustlibs: [

        latest_android_hardware_automotive_audiocontrol + "-rust",

    ],

}

automotive/audiocontrol/aidl/rust_impl/Android.bp

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/*

 * Copyright (C) 2024 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



rust_binary {

    name: "android.hardware.automotive.audiocontrol-V4-rust-service",

    relative_install_path: "hw",

    vendor: true,

    srcs: ["src/*.rs"],

    crate_root: "src/main.rs",

    defaults: [

        "latest_android_hardware_automotive_audiocontrol_rust",

        "latest_android_hardware_audio_common_rust",

    ],

    vintf_fragments: ["audiocontrol-rust-service.xml"],

    init_rc: ["audiocontrol-rust-service.rc"],

    rustlibs: [

        "libbinder_rs",

    ],

}

automotive/audiocontrol/aidl/rust_impl/README.md

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# Rust Skeleton Audio Control HAL implementation.



WARNING: This is not a reference audio control HAl implementation and does

not contain any actual implementation.



This folder contains a skeleton audio control HAL implementation in Rust to

demonstrate  how vendor may implement a Rust audio control HAL. To run this

audio control HAL, include

`android.hardware.automotive.audiocontrol-V4-rust-service` in your image.



This implementation returns `StatusCode::UNKNOWN_ERROR` for all operations

and does not pass VTS/CTS. Vendor must replace the logic in

`default_audio_control_hal.rs` with the actual implementation.

automotive/audiocontrol/aidl/rust_impl/audiocontrol-rust-service.rc

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service vendor.audiocontrol-default /vendor/bin/hw/android.hardware.automotive.audiocontrol-service.example

    class hal

    user audioserver

    group system

automotive/audiocontrol/aidl/rust_impl/audiocontrol-rust-service.xml

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<!--

  ~ Copyright (C) 2024 The Android Open Source Project

  ~

  ~ Licensed under the Apache License, Version 2.0 (the "License");

  ~ you may not use this file except in compliance with the License.

  ~ You may obtain a copy of the License at

  ~

  ~      http://www.apache.org/licenses/LICENSE-2.0

  ~

  ~ Unless required by applicable law or agreed to in writing, software

  ~ distributed under the License is distributed on an "AS IS" BASIS,

  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  ~ See the License for the specific language governing permissions and

  ~ limitations under the License.

  -->



<manifest version="2.0" type="device">

    <hal format="aidl">

        <name>android.hardware.automotive.audiocontrol</name>

        <version>4</version>

        <fqname>IAudioControl/default</fqname>

    </hal>

</manifest>