[UCPD] Instance and Pin Traits

Skip FRSTX pin for now. Its available twice in the device JSON as
FRSTX1 and FRSTX2 both with the same pins as targets.
I don’t know enough about the FRS (fast role switch) feature to
understand if that is correct and how to handle the pins.

2 files changed, 30 insertions, 0 deletions

diff --git a/embassy-stm32/src/lib.rs b/embassy-stm32/src/lib.rs
index b548a0343..361dc6f53 100644
--- a/embassy-stm32/src/lib.rs
+++ b/embassy-stm32/src/lib.rs
@@ -73,6 +73,8 @@ pub mod sai;
 pub mod sdmmc;
 #[cfg(spi)]
 pub mod spi;
+#[cfg(ucpd)]
+pub mod ucpd;
 #[cfg(uid)]
 pub mod uid;
 #[cfg(usart)]
diff --git a/embassy-stm32/src/ucpd.rs b/embassy-stm32/src/ucpd.rs
new file mode 100644
index 000000000..a2bac7611
--- /dev/null
+++ b/embassy-stm32/src/ucpd.rs
@@ -0,0 +1,28 @@
+//! USB Type-C/USB Power Delivery Interface (UCPD)
+
+use crate::rcc::RccPeripheral;
+
+/// UCPD instance trait.
+pub trait Instance: sealed::Instance + RccPeripheral {}
+
+pub(crate) mod sealed {
+    pub trait Instance {
+        const REGS: crate::pac::ucpd::Ucpd;
+    }
+}
+
+foreach_peripheral!(
+    (ucpd, $inst:ident) => {
+        impl sealed::Instance for crate::peripherals::$inst {
+            const REGS: crate::pac::ucpd::Ucpd = crate::pac::$inst;
+        }
+
+        impl Instance for crate::peripherals::$inst {}
+    };
+);
+
+pin_trait!(Cc1Pin, Instance);
+pin_trait!(Cc2Pin, Instance);
+
+dma_trait!(TxDma, Instance);
+dma_trait!(RxDma, Instance);