Move new async to asynch module to guard for models without flash interrupt

embassy-stm32/src/flash/asynch.rs

@@ -1,5 +1,9 @@
+use core::marker::PhantomData;
+
 use atomic_polyfill::{fence, Ordering};
+use embassy_cortex_m::interrupt::{Interrupt, InterruptExt};
 use embassy_hal_common::drop::OnDrop;
+use embassy_hal_common::into_ref;
 use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
 use embassy_sync::mutex::Mutex;
 
@@ -7,10 +11,28 @@ use super::{
     blocking_read, ensure_sector_aligned, family, get_sector, Async, Error, Flash, FlashLayout, FLASH_BASE, FLASH_SIZE,
     MAX_ERASE_SIZE, READ_SIZE, WRITE_SIZE,
 };
+use crate::peripherals::FLASH;
+use crate::{interrupt, Peripheral};
 
 pub(super) static REGION_ACCESS: Mutex<CriticalSectionRawMutex, ()> = Mutex::new(());
 
 impl<'d> Flash<'d, Async> {
+    pub fn new(
+        p: impl Peripheral<P = FLASH> + 'd,
+        _irq: impl interrupt::Binding<crate::interrupt::FLASH, InterruptHandler> + 'd,
+    ) -> Self {
+        into_ref!(p);
+
+        let flash_irq = unsafe { crate::interrupt::FLASH::steal() };
+        flash_irq.unpend();
+        flash_irq.enable();
+
+        Self {
+            inner: p,
+            _mode: PhantomData,
+        }
+    }
+
     pub fn into_regions(self) -> FlashLayout<'d, Async> {
         family::set_default_layout();
         FlashLayout::new(self.inner)
@@ -25,6 +47,15 @@ impl<'d> Flash<'d, Async> {
     }
 }
 
+/// Interrupt handler
+pub struct InterruptHandler;
+
+impl interrupt::Handler<crate::interrupt::FLASH> for InterruptHandler {
+    unsafe fn on_interrupt() {
+        family::on_interrupt();
+    }
+}
+
 impl embedded_storage_async::nor_flash::ReadNorFlash for Flash<'_, Async> {
     const READ_SIZE: usize = READ_SIZE;