1 files changed, 15 insertions, 6 deletions

diff --git a/embassy-stm32/src/timer/input_capture.rs b/embassy-stm32/src/timer/input_capture.rs
index dda33e7f1..b717e6eac 100644
--- a/embassy-stm32/src/timer/input_capture.rs
+++ b/embassy-stm32/src/timer/input_capture.rs
@@ -18,7 +18,8 @@ use crate::Peri;
 ///
 /// This wraps a pin to make it usable with capture.
 pub struct CapturePin<'d, T, C> {
-    _pin: Peri<'d, AnyPin>,
+    #[allow(unused)]
+    pin: Peri<'d, AnyPin>,
     phantom: PhantomData<(T, C)>,
 }
 impl<'d, T: GeneralInstance4Channel, C: TimerChannel> CapturePin<'d, T, C> {
@@ -26,7 +27,7 @@ impl<'d, T: GeneralInstance4Channel, C: TimerChannel> CapturePin<'d, T, C> {
     pub fn new(pin: Peri<'d, impl TimerPin<T, C>>, pull: Pull) -> Self {
         pin.set_as_af(pin.af_num(), AfType::input(pull));
         CapturePin {
-            _pin: pin.into(),
+            pin: pin.into(),
             phantom: PhantomData,
         }
     }
@@ -39,16 +40,24 @@ pub struct InputCapture<'d, T: GeneralInstance4Channel> {
 
 impl<'d, T: GeneralInstance4Channel> InputCapture<'d, T> {
     /// Create a new input capture driver.
+    #[allow(unused)]
     pub fn new(
         tim: Peri<'d, T>,
-        _ch1: Option<CapturePin<'d, T, Ch1>>,
-        _ch2: Option<CapturePin<'d, T, Ch2>>,
-        _ch3: Option<CapturePin<'d, T, Ch3>>,
-        _ch4: Option<CapturePin<'d, T, Ch4>>,
+        ch1: Option<CapturePin<'d, T, Ch1>>,
+        ch2: Option<CapturePin<'d, T, Ch2>>,
+        ch3: Option<CapturePin<'d, T, Ch3>>,
+        ch4: Option<CapturePin<'d, T, Ch4>>,
         _irq: impl Binding<T::CaptureCompareInterrupt, CaptureCompareInterruptHandler<T>> + 'd,
         freq: Hertz,
         counting_mode: CountingMode,
     ) -> Self {
+        #[cfg(afio)]
+        super::set_afio::<T>(&[
+            ch1.map(|p| p.pin),
+            ch2.map(|p| p.pin),
+            ch3.map(|p| p.pin),
+            ch4.map(|p| p.pin),
+        ]);
         Self::new_inner(tim, freq, counting_mode)
     }