1 // SPDX-License-Identifier: GPL-2.0
2 
3 //! Rust Platform driver sample.
4 
5 use kernel::{c_str, of, platform, prelude::*};
6 
7 struct SampleDriver {
8     pdev: platform::Device,
9 }
10 
11 struct Info(u32);
12 
13 kernel::of_device_table!(
14     OF_TABLE,
15     MODULE_OF_TABLE,
16     <SampleDriver as platform::Driver>::IdInfo,
17     [(of::DeviceId::new(c_str!("test,rust-device")), Info(42))]
18 );
19 
20 impl platform::Driver for SampleDriver {
21     type IdInfo = Info;
22     const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE);
23 
probe(pdev: &mut platform::Device, info: Option<&Self::IdInfo>) -> Result<Pin<KBox<Self>>>24     fn probe(pdev: &mut platform::Device, info: Option<&Self::IdInfo>) -> Result<Pin<KBox<Self>>> {
25         dev_dbg!(pdev.as_ref(), "Probe Rust Platform driver sample.\n");
26 
27         if let Some(info) = info {
28             dev_info!(pdev.as_ref(), "Probed with info: '{}'.\n", info.0);
29         }
30 
31         let drvdata = KBox::new(Self { pdev: pdev.clone() }, GFP_KERNEL)?;
32 
33         Ok(drvdata.into())
34     }
35 }
36 
37 impl Drop for SampleDriver {
drop(&mut self)38     fn drop(&mut self) {
39         dev_dbg!(self.pdev.as_ref(), "Remove Rust Platform driver sample.\n");
40     }
41 }
42 
43 kernel::module_platform_driver! {
44     type: SampleDriver,
45     name: "rust_driver_platform",
46     author: "Danilo Krummrich",
47     description: "Rust Platform driver",
48     license: "GPL v2",
49 }
50