From d1a968042279152fd8f342406fe89cbe7ad6ce48 Mon Sep 17 00:00:00 2001
From: Dario Nieuwenhuis <dirbaio@dirbaio.net>
Date: Wed, 9 Feb 2022 00:45:52 +0100
Subject: [PATCH] stm32: change interrupt declarations from macrotables to
 build.rs.

---
 embassy-stm32/build.rs         | 17 +++++++++++++++++
 embassy-stm32/src/interrupt.rs |  9 +--------
 embassy-stm32/src/lib.rs       |  2 --
 3 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/embassy-stm32/build.rs b/embassy-stm32/build.rs
index c476420d..8889b0d0 100644
--- a/embassy-stm32/build.rs
+++ b/embassy-stm32/build.rs
@@ -84,6 +84,23 @@ fn main() {
         embassy_hal_common::peripherals!(#(#singleton_tokens),*);
     });
 
+    // ========
+    // Generate interrupt declarations
+
+    let mut irqs = Vec::new();
+    for irq in METADATA.interrupts {
+        irqs.push(format_ident!("{}", irq.name));
+    }
+
+    g.extend(quote! {
+        pub mod interrupt {
+            use crate::pac::Interrupt as InterruptEnum;
+            #(
+                embassy::interrupt::declare!(#irqs);
+            )*
+        }
+    });
+
     // ========
     // Generate DMA IRQs.
 
diff --git a/embassy-stm32/src/interrupt.rs b/embassy-stm32/src/interrupt.rs
index 27e44164..c757b790 100644
--- a/embassy-stm32/src/interrupt.rs
+++ b/embassy-stm32/src/interrupt.rs
@@ -3,11 +3,4 @@ pub use critical_section::CriticalSection;
 pub use embassy::interrupt::{take, Interrupt};
 pub use embassy_hal_common::interrupt::Priority4 as Priority;
 
-use crate::pac::Interrupt as InterruptEnum;
-use embassy::interrupt::declare;
-
-crate::pac::interrupts!(
-    ($name:ident) => {
-        declare!($name);
-    };
-);
+pub use crate::generated::interrupt::*;
diff --git a/embassy-stm32/src/lib.rs b/embassy-stm32/src/lib.rs
index 75a4d22d..89b2be58 100644
--- a/embassy-stm32/src/lib.rs
+++ b/embassy-stm32/src/lib.rs
@@ -63,8 +63,6 @@ mod generated {
     #![allow(unused_imports)]
     #![allow(non_snake_case)]
 
-    use crate::interrupt;
-
     include!(concat!(env!("OUT_DIR"), "/generated.rs"));
 }
 pub use embassy_macros::interrupt;