@@ -2,8 +2,68 @@
//! Rust Platform driver sample.
+//! ACPI match table test
+//!
+//! This demonstrates how to test an ACPI-based Rust platform driver using QEMU
+//! with a custom SSDT.
+//!
+//! Steps:
+//!
+//! 1. **Create an SSDT source file** (`ssdt.dsl`) with the following content:
+//!
+//! ```asl
+//! DefinitionBlock ("", "SSDT", 2, "TEST", "VIRTACPI", 0x00000001)
+//! {
+//! Scope (\_SB)
+//! {
+//! Device (T432)
+//! {
+//! Name (_HID, "TST0001") // ACPI hardware ID to match
+//! Name (_UID, 1)
+//! Name (_STA, 0x0F) // Device present, enabled
+//! Name (_CRS, ResourceTemplate ()
+//! {
+//! Memory32Fixed (ReadWrite, 0xFED00000, 0x1000)
+//! })
+//! }
+//! }
+//! }
+//! ```
+//!
+//! 2. **Compile the table**:
+//!
+//! ```sh
+//! iasl -tc ssdt.dsl
+//! ```
+//!
+//! This generates `ssdt.aml`
+//!
+//! 3. **Run QEMU** with the compiled AML file:
+//!
+//! ```sh
+//! qemu-system-x86_64 -m 512M \
+//! -enable-kvm \
+//! -kernel path/to/bzImage \
+//! -append "root=/dev/sda console=ttyS0" \
+//! -hda rootfs.img \
+//! -serial stdio \
+//! -acpitable file=ssdt.aml
+//! ```
+//!
+//! Requirements:
+//! - The `rust_driver_platform` must be present either:
+//! - built directly into the kernel (`bzImage`), or
+//! - available as a `.ko` file and loadable from `rootfs.img`
+//!
+//! 4. **Verify it worked** by checking `dmesg`:
+//!
+//! ```
+//! rust_driver_platform TST0001:00: Probed with info: '0'.
+//! ```
+//!
+
use kernel::{
- c_str,
+ acpi, c_str,
device::{self, Core},
of, platform,
prelude::*,
@@ -24,9 +84,17 @@ struct SampleDriver {
[(of::DeviceId::new(c_str!("test,rust-device")), Info(42))]
);
+kernel::acpi_device_table!(
+ ACPI_TABLE,
+ MODULE_ACPI_TABLE,
+ <SampleDriver as platform::Driver>::IdInfo,
+ [(acpi::DeviceId::new(b"TST0001"), Info(0))]
+);
+
impl platform::Driver for SampleDriver {
type IdInfo = Info;
const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE);
+ const ACPI_ID_TABLE: Option<acpi::IdTable<Self::IdInfo>> = Some(&ACPI_TABLE);
fn probe(
pdev: &platform::Device<Core>,
Extend the Rust sample platform driver to probe using device/driver name matching, OF ID table matching, or ACPI ID table matching. Signed-off-by: Igor Korotin <igor.korotin.linux@gmail.com> --- samples/rust/rust_driver_platform.rs | 70 +++++++++++++++++++++++++++- 1 file changed, 69 insertions(+), 1 deletion(-)