Add event check / reset on PwmSeq

Author: kalkyl

examples/pwm-demo/src/main.rs

@@ -103,12 +103,11 @@ const APP: () = {
 
     #[task(binds = PWM0, resources = [pwm])]
     fn on_pwm(ctx: on_pwm::Context) {
-        let (buf0, buf1, pwm) = ctx.resources.pwm.take().unwrap().split();
-        if pwm.is_event_triggered(PwmEvent::Stopped) {
-            pwm.reset_event(PwmEvent::Stopped);
+        let pwm_seq = ctx.resources.pwm.as_ref().unwrap();
+        if pwm_seq.is_event_triggered(PwmEvent::Stopped) {
+            pwm_seq.reset_event(PwmEvent::Stopped);
             rprintln!("PWM generation was stopped");
         }
-        ctx.resources.pwm.replace(pwm.wrap(buf0, buf1));
     }
 
     #[task(binds = GPIOTE, resources = [gpiote], schedule = [debounce])]

nrf-hal-common/src/pwm.rs

@@ -800,7 +800,7 @@ where
         inner.pwm.stop();
     }
 
-    // Starts playing the given sequence.
+    /// Starts playing the given sequence.
     #[inline(always)]
     pub fn start_seq(&self, seq: Seq) {
         let inner = self
@@ -809,6 +809,26 @@ where
             .unwrap_or_else(|| unsafe { core::hint::unreachable_unchecked() });
         inner.pwm.start_seq(seq);
     }
+
+    /// Checks if the given event has been triggered.
+    #[inline(always)]
+    pub fn is_event_triggered(&self, event: PwmEvent) -> bool {
+        let inner = self
+            .inner
+            .as_ref()
+            .unwrap_or_else(|| unsafe { core::hint::unreachable_unchecked() });
+        inner.pwm.is_event_triggered(event)
+    }
+
+    /// Marks the given event as handled.
+    #[inline(always)]
+    pub fn reset_event(&self, event: PwmEvent) {
+        let inner = self
+            .inner
+            .as_ref()
+            .unwrap_or_else(|| unsafe { core::hint::unreachable_unchecked() });
+        inner.pwm.reset_event(event)
+    }
 }
 
 impl<T: Instance> embedded_hal::Pwm for Pwm<T> {