starnix_modules_gralloc/
device.rs

1// Copyright 2023 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use super::file::GrallocFile;
6use starnix_core::device::DeviceOps;
7use starnix_core::task::{CurrentTask, Kernel};
8use starnix_core::vfs::{FileOps, NamespaceNode};
9
10use starnix_uapi::device_id::DeviceId;
11use starnix_uapi::errors::Errno;
12use starnix_uapi::open_flags::OpenFlags;
13
14#[derive(Clone)]
15struct GrallocDevice;
16
17impl DeviceOps for GrallocDevice {
18    fn open(
19        &self,
20        current_task: &CurrentTask,
21        _id: DeviceId,
22        _node: &NamespaceNode,
23        _flags: OpenFlags,
24    ) -> Result<Box<dyn FileOps>, Errno> {
25        GrallocFile::new_file(current_task)
26    }
27}
28
29pub fn gralloc_device_init(kernel: &Kernel) {
30    let registry = &kernel.device_registry;
31    registry
32        .register_dyn_device(
33            kernel,
34            "virtgralloc0".into(),
35            registry.objects.starnix_class(),
36            GrallocDevice,
37        )
38        .expect("can register virtgralloc0");
39}
starnix_modules_gralloc/device.rs

starnix_modules_gralloc/
device.rs
