@@ -37,12 +37,18 @@ unsafe fn register(
None => core::ptr::null(),
};
+ let acpi_table = match T::ACPI_ID_TABLE {
+ Some(table) => table.as_ptr(),
+ None => core::ptr::null(),
+ };
+
// SAFETY: It's safe to set the fields of `struct platform_driver` on initialization.
unsafe {
(*pdrv.get()).driver.name = name.as_char_ptr();
(*pdrv.get()).probe = Some(Self::probe_callback);
(*pdrv.get()).remove = Some(Self::remove_callback);
(*pdrv.get()).driver.of_match_table = of_table;
+ (*pdrv.get()).driver.acpi_match_table = acpi_table;
}
// SAFETY: `pdrv` is guaranteed to be a valid `RegType`.
@@ -96,7 +102,7 @@ fn of_id_table() -> Option<of::IdTable<Self::IdInfo>> {
}
fn acpi_id_table() -> Option<acpi::IdTable<Self::IdInfo>> {
- None
+ T::ACPI_ID_TABLE
}
}
@@ -127,7 +133,7 @@ macro_rules! module_platform_driver {
/// # Example
///
///```
-/// # use kernel::{bindings, c_str, device::Core, of, platform};
+/// # use kernel::{acpi, bindings, c_str, device::Core, of, platform};
///
/// struct MyDriver;
///
@@ -140,9 +146,19 @@ macro_rules! module_platform_driver {
/// ]
/// );
///
+/// kernel::acpi_device_table!(
+/// ACPI_TABLE,
+/// MODULE_ACPI_TABLE,
+/// <MyDriver as platform::Driver>::IdInfo,
+/// [
+/// (acpi::DeviceId::new(c_str!("TEST4321")), ())
+/// ]
+/// );
+///
/// impl platform::Driver for MyDriver {
/// type IdInfo = ();
/// 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>,
@@ -164,6 +180,9 @@ pub trait Driver: Send {
/// The table of OF device ids supported by the driver.
const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = None;
+ /// The table of ACPI device ids supported by the driver.
+ const ACPI_ID_TABLE: Option<acpi::IdTable<Self::IdInfo>> = None;
+
/// Platform driver probe.
///
/// Called when a new platform device is added or discovered.
Extend the `platform::Driver` trait to support ACPI device matching by adding the `ACPI_ID_TABLE` constant. This allows Rust platform drivers to define ACPI match tables alongside their existing OF match tables. These changes mirror the existing OF support and allow Rust platform drivers to match devices based on ACPI identifiers. Signed-off-by: Igor Korotin <igor.korotin.linux@gmail.com> --- rust/kernel/platform.rs | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-)