Implement time feature

embassy-stm32/Cargo.toml

@@ -82,9 +82,12 @@ memory-x = ["stm32-metapac/memory-x"]
 subghz = []
 exti = []
 
+# Enables additional driver features that depend on embassy-time
+time = ["dep:embassy-time"]
+
 # Features starting with `_` are for internal use only. They're not intended
 # to be enabled by other crates, and are not covered by semver guarantees.
-_time-driver = ["dep:embassy-time"]
+_time-driver = ["time"]
 time-driver-any = ["_time-driver"]
 time-driver-tim2 = ["_time-driver"]
 time-driver-tim3 = ["_time-driver"]

embassy-stm32/src/i2c/mod.rs

@@ -7,7 +7,9 @@ use crate::interrupt::Interrupt;
 mod _version;
 pub use _version::*;
 
+#[cfg(feature = "time")]
 mod timeout;
+#[cfg(feature = "time")]
 pub use timeout::*;
 
 use crate::peripherals;

embassy-stm32/src/lib.rs

@@ -52,7 +52,7 @@ pub mod sdmmc;
 pub mod spi;
 #[cfg(usart)]
 pub mod usart;
-#[cfg(usb)]
+#[cfg(all(usb, feature = "time"))]
 pub mod usb;
 #[cfg(any(otgfs, otghs))]
 pub mod usb_otg;

embassy-stm32/src/subghz/timeout.rs

@@ -439,6 +439,7 @@ impl From<Timeout> for [u8; 3] {
     }
 }
 
+#[cfg(feature = "time")]
 impl From<Timeout> for embassy_time::Duration {
     fn from(to: Timeout) -> Self {
         embassy_time::Duration::from_micros(to.as_micros().into())

embassy-stm32/src/subghz/tx_params.rs

@@ -44,6 +44,7 @@ impl From<RampTime> for core::time::Duration {
     }
 }
 
+#[cfg(feature = "time")]
 impl From<RampTime> for embassy_time::Duration {
     fn from(rt: RampTime) -> Self {
         match rt {