chore(core/rust): Add micropython::time::sleep

core/embed/rust/build.rs

@@ -113,6 +113,7 @@ fn generate_micropython_bindings() {
         .allowlist_var("mp_type_TypeError")
         // time
         .allowlist_function("mp_hal_ticks_ms")
+        .allowlist_function("mp_hal_delay_ms")
         // typ
         .allowlist_var("mp_type_type");
 

core/embed/rust/src/micropython/time.rs

@@ -1,5 +1,11 @@
+use crate::time::Duration;
+
 use super::ffi;
 
 pub fn ticks_ms() -> u32 {
     unsafe { ffi::mp_hal_ticks_ms() as _ }
 }
+
+pub fn sleep(delay: Duration) {
+    unsafe { ffi::mp_hal_delay_ms(delay.to_millis() as _) }
+}

core/embed/rust/src/time.rs

@@ -67,6 +67,7 @@ pub struct Instant {
 
 impl Instant {
     pub fn now() -> Self {
+        // TODO: We should move this to `micropython::time`.
         Self {
             millis: time::ticks_ms(),
         }