stm32/dma: minor cleanup, optmization

2 files changed, 6 insertions, 6 deletions

diff --git a/embassy-stm32/src/dma/bdma.rs b/embassy-stm32/src/dma/bdma.rs
index e79a159ef..20ff29bef 100644
--- a/embassy-stm32/src/dma/bdma.rs
+++ b/embassy-stm32/src/dma/bdma.rs
@@ -497,7 +497,7 @@ impl<'a, C: Channel, W: Word> ReadableRingBuffer<'a, C, W> {
     }
 
     /// The capacity of the ringbuffer.
-    pub fn cap(&self) -> usize {
+    pub const fn cap(&self) -> usize {
         self.ringbuf.cap()
     }
 
@@ -628,7 +628,7 @@ impl<'a, C: Channel, W: Word> WritableRingBuffer<'a, C, W> {
     }
 
     /// The capacity of the ringbuffer.
-    pub fn cap(&self) -> usize {
+    pub const fn cap(&self) -> usize {
         self.ringbuf.cap()
     }
 
diff --git a/embassy-stm32/src/dma/dma.rs b/embassy-stm32/src/dma/dma.rs
index 91d8b63b0..5033ae477 100644
--- a/embassy-stm32/src/dma/dma.rs
+++ b/embassy-stm32/src/dma/dma.rs
@@ -742,12 +742,12 @@ impl<'a, C: Channel, W: Word> ReadableRingBuffer<'a, C, W> {
     }
 
     // The capacity of the ringbuffer
-    pub fn cap(&self) -> usize {
+    pub const fn cap(&self) -> usize {
         self.ringbuf.cap()
     }
 
     pub fn set_waker(&mut self, waker: &Waker) {
-        STATE.ch_wakers[self.channel.index()].register(waker);
+        DmaCtrlImpl(self.channel.reborrow()).set_waker(waker);
     }
 
     fn clear_irqs(&mut self) {
@@ -890,12 +890,12 @@ impl<'a, C: Channel, W: Word> WritableRingBuffer<'a, C, W> {
     }
 
     // The capacity of the ringbuffer
-    pub fn cap(&self) -> usize {
+    pub const fn cap(&self) -> usize {
         self.ringbuf.cap()
     }
 
     pub fn set_waker(&mut self, waker: &Waker) {
-        STATE.ch_wakers[self.channel.index()].register(waker);
+        DmaCtrlImpl(self.channel.reborrow()).set_waker(waker);
     }
 
     fn clear_irqs(&mut self) {