Make interrupt module more standard.

- Move typelevel interrupts to a special-purpose mod: `embassy_xx::interrupt::typelevel`.
- Reexport the PAC interrupt enum in `embassy_xx::interrupt`.

This has a few advantages:
- The `embassy_xx::interrupt` module is now more "standard".
  - It works with `cortex-m` functions for manipulating interrupts, for example.
  - It works with RTIC.
- the interrupt enum allows holding value that can be "any interrupt at runtime", this can't be done with typelevel irqs.
- When "const-generics on enums" is stable, we can remove the typelevel interrupts without disruptive changes to `embassy_xx::interrupt`.

1 files changed, 0 insertions, 13 deletions

diff --git a/embassy-macros/src/lib.rs b/embassy-macros/src/lib.rs
index d7ca1f69c..ba4f13b77 100644
--- a/embassy-macros/src/lib.rs
+++ b/embassy-macros/src/lib.rs
@@ -156,16 +156,3 @@ pub fn main_wasm(args: TokenStream, item: TokenStream) -> TokenStream {
     let f = syn::parse_macro_input!(item as syn::ItemFn);
     main::run(args, f, main::wasm()).unwrap_or_else(|x| x).into()
 }
-
-#[proc_macro_attribute]
-pub fn cortex_m_interrupt(args: TokenStream, item: TokenStream) -> TokenStream {
-    let args = syn::parse_macro_input!(args as syn::AttributeArgs);
-    let f = syn::parse_macro_input!(item as syn::ItemFn);
-    cortex_m_interrupt::run(args, f).unwrap_or_else(|x| x).into()
-}
-
-#[proc_macro]
-pub fn cortex_m_interrupt_declare(item: TokenStream) -> TokenStream {
-    let name = syn::parse_macro_input!(item as syn::Ident);
-    cortex_m_interrupt_declare::run(name).unwrap_or_else(|x| x).into()
-}