embassy-stm32: Add SimplePwmChannel

embassy-stm32/src/timer/low_level.rs

@@ -6,6 +6,8 @@
 //!
 //! The available functionality depends on the timer type.
 
+use core::mem::ManuallyDrop;
+
 use embassy_hal_internal::{into_ref, Peripheral, PeripheralRef};
 // Re-export useful enums
 pub use stm32_metapac::timer::vals::{FilterValue, Sms as SlaveMode, Ts as TriggerSource};
@@ -198,6 +200,11 @@ impl<'d, T: CoreInstance> Timer<'d, T> {
         Self { tim }
     }
 
+    pub(crate) unsafe fn clone_unchecked(&self) -> ManuallyDrop<Self> {
+        let tim = unsafe { self.tim.clone_unchecked() };
+        ManuallyDrop::new(Self { tim })
+    }
+
     /// Get access to the virutal core 16bit timer registers.
     ///
     /// Note: This works even if the timer is more capable, because registers

embassy-stm32/src/timer/mod.rs

@@ -2,6 +2,7 @@
 
 use core::marker::PhantomData;
 
+use embassy_hal_internal::Peripheral;
 use embassy_sync::waitqueue::AtomicWaker;
 
 #[cfg(not(stm32l0))]
@@ -66,7 +67,7 @@ impl State {
     }
 }
 
-trait SealedInstance: RccPeripheral {
+trait SealedInstance: RccPeripheral + Peripheral<P = Self> {
     /// Async state for this timer
     fn state() -> &'static State;
 }