Add capture dma impls

Author: usbalbin

src/hrtim/capture.rs

@@ -0,0 +1,32 @@
+use stm32_hrtim::{
+    capture::{Ch1, Ch2, Dma, HrCapt},
+    pac::{HRTIM_TIMA, HRTIM_TIMB, HRTIM_TIMC, HRTIM_TIMD, HRTIM_TIME, HRTIM_TIMF},
+};
+
+use crate::dma::{mux::DmaMuxResources, traits::TargetAddress, PeripheralToMemory};
+
+macro_rules! impl_dma_traits {
+    ($TIMX:ident, $CH:ident, $cptXr:ident) => {
+        unsafe impl<PSCL> TargetAddress<PeripheralToMemory> for HrCapt<$TIMX, PSCL, $CH, Dma> {
+            #[inline(always)]
+            fn address(&self) -> u32 {
+                let tim = unsafe { &*$TIMX::ptr() };
+                &tim.$cptXr() as *const _ as u32
+            }
+
+            type MemSize = u32;
+
+            const REQUEST_LINE: Option<u8> = Some(DmaMuxResources::$TIMX as u8);
+        }
+    };
+    ($($TIMX:ident),+) => {
+        $(
+            impl_dma_traits!($TIMX, Ch1, cpt1r);
+            impl_dma_traits!($TIMX, Ch2, cpt2r);
+        )+
+    }
+}
+
+impl_dma_traits! {
+    HRTIM_TIMA, HRTIM_TIMB, HRTIM_TIMC, HRTIM_TIMD, HRTIM_TIME, HRTIM_TIMF
+}

src/hrtim/mod.rs

@@ -1,6 +1,7 @@
 pub mod adc_trigger;
 pub mod external_event;
 pub mod fault;
+pub mod capture;
 
 use core::mem::MaybeUninit;