From 72020fc0126483f61be8ce2a4c8b78b0a5a95cc7 Mon Sep 17 00:00:00 2001
From: noracarmig <nora.carmig@gmail.com>
Date: Sun, 26 Jan 2025 14:53:10 +0000
Subject: [PATCH 1/2] Reset complete count global variable on Dma configure

---
 embassy-stm32/src/dma/dma_bdma.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/embassy-stm32/src/dma/dma_bdma.rs b/embassy-stm32/src/dma/dma_bdma.rs
index 6144db0d6..d31f4d01a 100644
--- a/embassy-stm32/src/dma/dma_bdma.rs
+++ b/embassy-stm32/src/dma/dma_bdma.rs
@@ -359,11 +359,13 @@ impl AnyChannel {
         match self.info().dma {
             #[cfg(dma)]
             DmaInfo::Dma(r) => {
+                let state: &ChannelState = &STATE[self.id as usize];
                 let ch = r.st(info.num);
 
                 // "Preceding reads and writes cannot be moved past subsequent writes."
                 fence(Ordering::SeqCst);
 
+                state.complete_count.store(0, Ordering::Release);
                 self.clear_irqs();
 
                 ch.par().write_value(peri_addr as u32);

From fcacbae2335c1c6cabf76f4731e367c9245bcc74 Mon Sep 17 00:00:00 2001
From: noracarmig <nora.carmig@gmail.com>
Date: Sun, 26 Jan 2025 14:58:56 +0000
Subject: [PATCH 2/2] Allow chips from L5 (sai_v3_2pdm) and H7 (sai_v3_4pdm)
 families to use external sai sync

---
 embassy-stm32/src/sai/mod.rs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/embassy-stm32/src/sai/mod.rs b/embassy-stm32/src/sai/mod.rs
index 18d5d7568..0dc8b62d0 100644
--- a/embassy-stm32/src/sai/mod.rs
+++ b/embassy-stm32/src/sai/mod.rs
@@ -190,7 +190,7 @@ pub enum SyncInput {
     /// Syncs with the other A/B sub-block within the SAI unit
     Internal,
     /// Syncs with a sub-block in the other SAI unit
-    #[cfg(any(sai_v4_2pdm, sai_v4_4pdm))]
+    #[cfg(any(sai_v3_2pdm, sai_v3_4pdm, sai_v4_2pdm, sai_v4_4pdm))]
     External(SyncInputInstance),
 }
 
@@ -199,14 +199,14 @@ impl SyncInput {
         match self {
             SyncInput::None => vals::Syncen::ASYNCHRONOUS,
             SyncInput::Internal => vals::Syncen::INTERNAL,
-            #[cfg(any(sai_v4_2pdm, sai_v4_4pdm))]
+            #[cfg(any(sai_v3_2pdm, sai_v3_4pdm, sai_v4_2pdm, sai_v4_4pdm))]
             SyncInput::External(_) => vals::Syncen::EXTERNAL,
         }
     }
 }
 
 /// SAI instance to sync from.
-#[cfg(any(sai_v4_2pdm, sai_v4_4pdm))]
+#[cfg(any(sai_v3_2pdm, sai_v3_4pdm, sai_v4_2pdm, sai_v4_4pdm))]
 #[derive(Copy, Clone, PartialEq)]
 #[allow(missing_docs)]
 pub enum SyncInputInstance {
@@ -704,12 +704,12 @@ fn update_synchronous_config(config: &mut Config) {
     config.mode = Mode::Slave;
     config.sync_output = false;
 
-    #[cfg(any(sai_v1, sai_v2, sai_v3_2pdm, sai_v3_4pdm))]
+    #[cfg(any(sai_v1, sai_v2))]
     {
         config.sync_input = SyncInput::Internal;
     }
 
-    #[cfg(any(sai_v4_2pdm, sai_v4_4pdm))]
+    #[cfg(any(sai_v3_2pdm, sai_v3_4pdm, sai_v4_2pdm, sai_v4_4pdm))]
     {
         //this must either be Internal or External
         //The asynchronous sub-block on the same SAI needs to enable sync_output
@@ -870,7 +870,7 @@ impl<'d, T: Instance, W: word::Word> Sai<'d, T, W> {
 
         ch.cr2().modify(|w| w.set_fflush(true));
 
-        #[cfg(any(sai_v4_2pdm, sai_v4_4pdm))]
+        #[cfg(any(sai_v3_2pdm, sai_v3_4pdm, sai_v4_2pdm, sai_v4_4pdm))]
         {
             if let SyncInput::External(i) = config.sync_input {
                 T::REGS.gcr().modify(|w| {