From 1254e99be12b8a2520b46936a016480d5f689dd7 Mon Sep 17 00:00:00 2001
From: Bob McWhirter <bmcwhirt@redhat.com>
Date: Fri, 16 Jul 2021 13:51:53 -0400
Subject: [PATCH] Be able to scrub out BDMA-centric IRQs. Further refine
 distinction between DMA and BDMA interrupts in the table.

---
 stm32-metapac-gen/src/lib.rs | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/stm32-metapac-gen/src/lib.rs b/stm32-metapac-gen/src/lib.rs
index a9ee8800..3cfb884c 100644
--- a/stm32-metapac-gen/src/lib.rs
+++ b/stm32-metapac-gen/src/lib.rs
@@ -284,6 +284,9 @@ pub fn gen(options: Options) {
 
         let number_suffix_re = Regex::new("^(.*?)[0-9]*$").unwrap();
 
+        let mut has_bdma = false;
+        let mut has_dma = false;
+
         for (name, p) in &core.peripherals {
             let captures = number_suffix_re.captures(&name).unwrap();
             let root_peri_name = captures.get(1).unwrap().as_str().to_string();
@@ -303,6 +306,12 @@ pub fn gen(options: Options) {
             if let Some(block) = &p.block {
                 let bi = BlockInfo::parse(block);
 
+                if bi.module == "bdma" {
+                    has_bdma = true
+                } else if bi.module == "dma" {
+                    has_dma = true
+                }
+
                 peripheral_counts.insert(
                     bi.module.clone(),
                     peripheral_counts.get(&bi.module).map_or(1, |v| v + 1),
@@ -522,8 +531,16 @@ pub fn gen(options: Options) {
 
             interrupt_table.push(vec![name.clone()]);
 
-            if name.starts_with("DMA") || name.contains("_DMA") {
-                interrupt_table.push(vec!["DMA".to_string(), name.clone()]);
+            if name.starts_with("DMA1_") || name.starts_with("DMA2_") || name.contains("_DMA") {
+                if has_dma {
+                    interrupt_table.push(vec!["DMA".to_string(), name.clone()]);
+                } else if has_bdma {
+                    interrupt_table.push(vec!["BDMA".to_string(), name.clone()]);
+                }
+            }
+
+            if name.starts_with("BDMA_") || name.starts_with("BDMA1_") || name.starts_with("BDMA2_") {
+                interrupt_table.push(vec!["BDMA".to_string(), name.clone()]);
             }
 
             if name.contains("EXTI") {