Add Clock type per RCC family

embassy-stm32/src/rcc/l0/mod.rs

@@ -1,6 +1,6 @@
 use crate::pac;
 use crate::peripherals::{self, CRS, RCC, SYSCFG};
-use crate::rcc::{get_freqs, set_freqs, Clocks};
+use crate::rcc::{get_freqs, set_freqs};
 use crate::time::Hertz;
 use crate::time::U32Ext;
 use core::marker::PhantomData;
@@ -12,6 +12,14 @@ use pac::rcc::vals::{Hpre, Msirange, Plldiv, Pllmul, Pllsrc, Ppre, Sw};
 /// Most of clock setup is copied from stm32l0xx-hal, and adopted to the generated PAC,
 /// and with the addition of the init function to configure a system clock.
 
+#[derive(Clone, Copy)]
+pub struct Clocks {
+    pub sys: Hertz,
+    pub ahb: Hertz,
+    pub apb1: Hertz,
+    pub apb2: Hertz,
+}
+
 /// System clock mux source
 #[derive(Clone, Copy)]
 pub enum ClockSrc {

embassy-stm32/src/rcc/mod.rs

@@ -1,20 +1,11 @@
 #![macro_use]
 
 use crate::peripherals;
-use crate::time::Hertz;
 use core::mem::MaybeUninit;
 
 /// Frozen clock frequencies
 ///
 /// The existence of this value indicates that the clock configuration can no longer be changed
-#[derive(Clone, Copy)]
-pub struct Clocks {
-    pub sys: Hertz,
-    pub ahb: Hertz,
-    pub apb1: Hertz,
-    pub apb2: Hertz,
-}
-
 static mut CLOCK_FREQS: MaybeUninit<Clocks> = MaybeUninit::uninit();
 
 /// Sets the clock frequencies
@@ -36,6 +27,37 @@ cfg_if::cfg_if! {
     } else if #[cfg(rcc_l0)] {
         mod l0;
         pub use l0::*;
+    } else if #[cfg(rcc_l4)] {
+        // TODO: Implement
+        use crate::time::Hertz;
+
+        #[derive(Clone, Copy)]
+        pub struct Clocks {
+            pub apb1: Hertz,
+            pub apb2: Hertz,
+            pub ahb2: Hertz,
+        }
+
+        #[derive(Default)]
+        pub struct Config {}
+        pub unsafe fn init(_config: Config) {
+        }
+    } else if #[cfg(rcc_f4)] {
+        // TODO: Implement
+        use crate::time::Hertz;
+
+        #[derive(Clone, Copy)]
+        pub struct Clocks {
+            pub apb1: Hertz,
+            pub apb2: Hertz,
+            pub ahb2: Hertz,
+        }
+
+        #[derive(Default)]
+        pub struct Config {}
+        pub unsafe fn init(_config: Config) {
+        }
+
     } else {
         #[derive(Default)]
         pub struct Config {}