rtic-sync: Remove unstable flag, and add defmt derives (#889)

3 files changed, 24 insertions, 3 deletions

diff --git a/rtic-sync/src/arbiter.rs b/rtic-sync/src/arbiter.rs
index f0dbc4c..b17fa00 100644
--- a/rtic-sync/src/arbiter.rs
+++ b/rtic-sync/src/arbiter.rs
@@ -191,7 +191,6 @@ impl<'a, T> DerefMut for ExclusiveAccess<'a, T> {
     }
 }
 
-#[cfg(feature = "unstable")]
 /// SPI bus sharing using [`Arbiter`]
 pub mod spi {
     use super::Arbiter;
@@ -274,7 +273,6 @@ pub mod spi {
     }
 }
 
-#[cfg(feature = "unstable")]
 /// I2C bus sharing using [`Arbiter`]
 ///
 /// An Example how to use it in RTIC application:
diff --git a/rtic-sync/src/channel.rs b/rtic-sync/src/channel.rs
index 4f4f0c2..64d09d1 100644
--- a/rtic-sync/src/channel.rs
+++ b/rtic-sync/src/channel.rs
@@ -18,6 +18,9 @@ use rtic_common::{
     wait_queue::{Link, WaitQueue},
 };
 
+#[cfg(feature = "defmt-03")]
+use crate::defmt;
+
 /// An MPSC channel for use in no-alloc systems. `N` sets the size of the queue.
 ///
 /// This channel uses critical sections, however there are extremely small and all `memcpy`
@@ -127,9 +130,11 @@ macro_rules! make_channel {
 // -------- Sender
 
 /// Error state for when the receiver has been dropped.
+#[cfg_attr(feature = "defmt-03", derive(defmt::Format))]
 pub struct NoReceiver<T>(pub T);
 
 /// Errors that 'try_send` can have.
+#[cfg_attr(feature = "defmt-03", derive(defmt::Format))]
 pub enum TrySendError<T> {
     /// Error state for when the receiver has been dropped.
     NoReceiver(T),
@@ -199,6 +204,13 @@ impl<'a, T, const N: usize> core::fmt::Debug for Sender<'a, T, N> {
     }
 }
 
+#[cfg(feature = "defmt-03")]
+impl<'a, T, const N: usize> defmt::Format for Sender<'a, T, N> {
+    fn format(&self, f: defmt::Formatter) {
+        defmt::write!(f, "Sender",)
+    }
+}
+
 impl<'a, T, const N: usize> Sender<'a, T, N> {
     #[inline(always)]
     fn send_footer(&mut self, idx: u8, val: T) {
@@ -382,8 +394,16 @@ impl<'a, T, const N: usize> core::fmt::Debug for Receiver<'a, T, N> {
     }
 }
 
+#[cfg(feature = "defmt-03")]
+impl<'a, T, const N: usize> defmt::Format for Receiver<'a, T, N> {
+    fn format(&self, f: defmt::Formatter) {
+        defmt::write!(f, "Receiver",)
+    }
+}
+
 /// Possible receive errors.
-#[derive(Debug, PartialEq, Eq)]
+#[cfg_attr(feature = "defmt-03", derive(defmt::Format))]
+#[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub enum ReceiveError {
     /// Error state for when all senders has been dropped.
     NoSender,
diff --git a/rtic-sync/src/lib.rs b/rtic-sync/src/lib.rs
index ecd3247..90afff6 100644
--- a/rtic-sync/src/lib.rs
+++ b/rtic-sync/src/lib.rs
@@ -3,6 +3,9 @@
 #![no_std]
 #![deny(missing_docs)]
 
+#[cfg(feature = "defmt-03")]
+use defmt_03 as defmt;
+
 pub mod arbiter;
 pub mod channel;
 pub use portable_atomic;