DMA transfer for PwmChannel and PwmManager

Author: burrbull

src/timer.rs

@@ -753,6 +753,14 @@ macro_rules! hal {
                     self.0.ccr(C as usize).as_ptr() as u32
                 }
 
+                type MemSize = $bits;
+            }
+            unsafe impl<const C: u8, const COMP: bool, Otype> PeriAddress for PwmChannel<$TIM, C, COMP, Otype> where $TIM: CPin<C> {
+                #[inline(always)]
+                fn address(&self) -> u32 {
+                    self.tim.ccr(C as usize).as_ptr() as u32
+                }
+
                 type MemSize = $bits;
             }
         )?
@@ -775,6 +783,14 @@ macro_rules! with_dmar {
                 self.0.dmar().as_ptr() as u32
             }
 
+            type MemSize = $memsize;
+        }
+        unsafe impl<const FREQ: u32> PeriAddress for PwmManager<$TIM, FREQ> {
+            #[inline(always)]
+            fn address(&self) -> u32 {
+                self.tim.dmar().as_ptr() as u32
+            }
+
             type MemSize = $memsize;
         }
     };

src/timer/pwm.rs

@@ -41,6 +41,7 @@ use super::{
     Polarity, Timer, WithPwm,
 };
 pub use super::{Ch, C1, C2, C3, C4};
+use crate::dma::traits::DMASet;
 use crate::gpio::{OpenDrain, PushPull};
 use crate::rcc::Rcc;
 use core::ops::{Deref, DerefMut};
@@ -183,6 +184,14 @@ pub struct PwmChannel<TIM: CPin<C>, const C: u8, const COMP: bool = false, Otype
     // TODO: add complementary pins
 }
 
+unsafe impl<TIM, const C: u8, const COMP: bool, Otype, STREAM, const CHANNEL: u8, DIRECTION>
+    DMASet<STREAM, CHANNEL, DIRECTION> for PwmChannel<TIM, C, COMP, Otype>
+where
+    TIM: CPin<C>,
+    super::CCR<TIM, C>: DMASet<STREAM, CHANNEL, DIRECTION>,
+{
+}
+
 impl<TIM: Instance + WithPwm + CPin<C>, const C: u8, const COMP: bool, Otype>
     PwmChannel<TIM, C, COMP, Otype>
 {
@@ -339,6 +348,14 @@ where
     pub(super) timer: FTimer<TIM, FREQ>,
 }
 
+unsafe impl<TIM, const FREQ: u32, STREAM, const CHANNEL: u8, DIRECTION>
+    DMASet<STREAM, CHANNEL, DIRECTION> for PwmManager<TIM, FREQ>
+where
+    TIM: Instance + WithPwm,
+    super::DMAR<TIM>: DMASet<STREAM, CHANNEL, DIRECTION>,
+{
+}
+
 impl<TIM, const FREQ: u32> PwmManager<TIM, FREQ>
 where
     TIM: Instance + WithPwm + Split,