Returns the Framebuffer currently assigned in an atomic plane state.
Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>
---
rust/kernel/drm/kms/plane.rs | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/rust/kernel/drm/kms/plane.rs b/rust/kernel/drm/kms/plane.rs
index cd5167e6441f1..15efa53fda8d3 100644
--- a/rust/kernel/drm/kms/plane.rs
+++ b/rust/kernel/drm/kms/plane.rs
@@ -31,6 +31,7 @@
StaticModeObject,
atomic::*,
crtc::*,
+ framebuffer::*,
};
/// The main trait for implementing the [`struct drm_plane`] API for [`Plane`]
@@ -521,6 +522,13 @@ fn atomic_helper_check<S>(
)
})
}
+
+ /// Return the framebuffer currently set for this plane state
+ #[inline]
+ fn framebuffer(&self) -> Option<&Framebuffer<<Self::Plane as ModeObject>::Driver>> {
+ // SAFETY: The layout of Framebuffer<T> is identical to `fb`
+ unsafe { self.as_raw().fb.as_ref().map(|fb| Framebuffer::from_raw(fb)) }
+ }
}
impl<T: AsRawPlaneState + ?Sized> RawPlaneState for T {}
--
2.46.1
