nrf/gpiote: Allow choosing IRQ priority.

embassy-nrf/src/gpiote.rs

@@ -40,7 +40,7 @@ pub enum OutputChannelPolarity {
     Toggle,
 }
 
-pub(crate) fn init() {
+pub(crate) fn init(irq_prio: crate::interrupt::Priority) {
     #[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
     let ports = unsafe { &[&*pac::P0::ptr(), &*pac::P1::ptr()] };
     #[cfg(not(any(feature = "nrf52833", feature = "nrf52840")))]
@@ -57,6 +57,7 @@ pub(crate) fn init() {
 
     let irq = unsafe { interrupt::GPIOTE::steal() };
     irq.unpend();
+    irq.set_priority(irq_prio);
     irq.enable();
 
     let g = unsafe { &*pac::GPIOTE::ptr() };

embassy-nrf/src/lib.rs

@@ -93,6 +93,7 @@ pub mod config {
     pub struct Config {
         pub hfclk_source: HfclkSource,
         pub lfclk_source: LfclkSource,
+        pub gpiote_interrupt_priority: crate::interrupt::Priority,
     }
 
     impl Default for Config {
@@ -103,6 +104,7 @@ pub mod config {
                 // xtals if they know they have them.
                 hfclk_source: HfclkSource::Internal,
                 lfclk_source: LfclkSource::InternalRC,
+                gpiote_interrupt_priority: crate::interrupt::Priority::P0,
             }
         }
     }
@@ -155,7 +157,7 @@ pub fn init(config: config::Config) -> Peripherals {
     while r.events_lfclkstarted.read().bits() == 0 {}
 
     // Init GPIOTE
-    crate::gpiote::init();
+    crate::gpiote::init(config.gpiote_interrupt_priority);
 
     peripherals
 }