Merge #342

342: Add serial port Idle interrupt r=burrbull a=gqf2008

Add serial port Idle interrupt.


Co-authored-by: 高庆丰 <gao.qingfeng@gmail.com>

src/serial.rs

@@ -63,6 +63,8 @@ pub enum Event {
     Rxne,
     /// New data can be sent
     Txe,
+    /// Idle line state detected
+    Idle,
 }
 
 /// Serial error
@@ -358,6 +360,7 @@ macro_rules! hal {
                     match event {
                         Event::Rxne => self.usart.cr1.modify(|_, w| w.rxneie().set_bit()),
                         Event::Txe => self.usart.cr1.modify(|_, w| w.txeie().set_bit()),
+                        Event::Idle => self.usart.cr1.modify(|_, w| w.idleie().set_bit()),
                     }
                 }
 
@@ -368,6 +371,7 @@ macro_rules! hal {
                     match event {
                         Event::Rxne => self.usart.cr1.modify(|_, w| w.rxneie().clear_bit()),
                         Event::Txe => self.usart.cr1.modify(|_, w| w.txeie().clear_bit()),
+                        Event::Idle => self.usart.cr1.modify(|_, w| w.idleie().clear_bit()),
                     }
                 }