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, 3 insertions, 3 deletions

diff --git a/embassy-nrf/src/time_driver.rs b/embassy-nrf/src/time_driver.rs
index 4feff8a75..f993d7b2e 100644
--- a/embassy-nrf/src/time_driver.rs
+++ b/embassy-nrf/src/time_driver.rs
@@ -7,7 +7,7 @@ use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
 use embassy_sync::blocking_mutex::CriticalSectionMutex as Mutex;
 use embassy_time::driver::{AlarmHandle, Driver};
 
-use crate::interrupt::Interrupt;
+use crate::interrupt::InterruptExt;
 use crate::{interrupt, pac};
 
 fn rtc() -> &'static pac::rtc0::RegisterBlock {
@@ -142,8 +142,8 @@ impl RtcDriver {
         // Wait for clear
         while r.counter.read().bits() != 0 {}
 
-        interrupt::RTC1::set_priority(irq_prio);
-        unsafe { interrupt::RTC1::enable() };
+        interrupt::RTC1.set_priority(irq_prio);
+        unsafe { interrupt::RTC1.enable() };
     }
 
     fn on_interrupt(&self) {