Expand channel trait

embassy-stm32/src/dma/mod.rs

@@ -9,6 +9,7 @@ mod dmamux;
 pub use dmamux::*;
 
 use core::future::Future;
+use core::task::Waker;
 use embassy::util::Unborrow;
 
 #[cfg(any(bdma_v2, dma_v2, dmamux))]
@@ -50,6 +51,12 @@ pub trait Channel: sealed::Channel {
         num: usize,
         dst: *mut u8,
     ) -> Self::WriteFuture<'a>;
+
+    fn stop<'a>(&'a mut self);
+
+    fn is_stopped<'a>(&self) -> bool;
+    fn remaining_transfers<'a>(&'a mut self) -> usize;
+    fn set_waker(&mut self, waker: &Waker);
 }
 
 pub struct NoDma;