extras: move peripherals from nrf to extras

2021-03-21 20:57:49 +01:00
parent ec7309962a
commit c0876187dd
3 changed files with 47 additions and 48 deletions
--- a/embassy-extras/src/macros.rs
+++ b/embassy-extras/src/macros.rs
@@ -0,0 +1,45 @@
+#[macro_export]
+macro_rules! peripherals {
+    ($($(#[$cfg:meta])? $name:ident: $type:ident),*$(,)?) => {
+        $(
+            $(#[$cfg])?
+            #[allow(non_camel_case_types)]
+            pub struct $type { _private: () }
+
+            $(#[$cfg])?
+            impl embassy::util::PeripheralBorrow for $type {
+                type Target = $type;
+                unsafe fn unborrow(self) -> $type {
+                    self
+                }
+            }
+
+            $(#[$cfg])?
+            impl embassy::util::PeripheralBorrow for &mut $type {
+                type Target = $type;
+                unsafe fn unborrow(self) -> $type {
+                    ::core::ptr::read(self)
+                }
+            }
+        )*
+
+        pub struct Peripherals {
+            $(
+                $(#[$cfg])?
+                pub $name: $type,
+            )*
+        }
+
+        impl Peripherals {
+            pub unsafe fn steal() -> Self {
+                Self {
+                    $(
+                        $(#[$cfg])?
+                        $name: $type { _private: () },
+                    )*
+                }
+            }
+        }
+
+    };
+}