1 // SPDX-License-Identifier: GPL-2.0
2 
3 //! Rust Platform driver sample.
4 
5 use kernel::{c_str, device::Core, of, platform, prelude::*, types::ARef};
6 
7 struct SampleDriver {
8     pdev: ARef<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 
24     fn probe(
25         pdev: &platform::Device<Core>,
26         info: Option<&Self::IdInfo>,
27     ) -> Result<Pin<KBox<Self>>> {
28         dev_dbg!(pdev.as_ref(), "Probe Rust Platform driver sample.\n");
29 
30         if let Some(info) = info {
31             dev_info!(pdev.as_ref(), "Probed with info: '{}'.\n", info.0);
32         }
33 
34         let drvdata = KBox::new(Self { pdev: pdev.into() }, GFP_KERNEL)?;
35 
36         Ok(drvdata.into())
37     }
38 }
39 
40 impl Drop for SampleDriver {
41     fn drop(&mut self) {
42         dev_dbg!(self.pdev.as_ref(), "Remove Rust Platform driver sample.\n");
43     }
44 }
45 
46 kernel::module_platform_driver! {
47     type: SampleDriver,
48     name: "rust_driver_platform",
49     authors: ["Danilo Krummrich"],
50     description: "Rust Platform driver",
51     license: "GPL v2",
52 }
53