Merge pull request #5 from RobertZ2011/minor-pdo-changes

Minor PD changes

src/lib.rs

@@ -69,6 +69,14 @@ pub enum Error<BE> {
     Pd(PdError),
 }
 
+/// Power role
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
+pub enum PowerRole {
+    Sink,
+    Source,
+}
+
 #[allow(clippy::from_over_into)]
 impl<T, BE> Into<Result<T, Error<BE>>> for PdError {
     fn into(self) -> Result<T, Error<BE>> {

src/pdo/mod.rs

@@ -120,6 +120,8 @@ pub trait Common {
     fn kind(&self) -> PdoKind;
     /// Get the APDO kind
     fn apdo_kind(&self) -> Option<ApdoKind>;
+    /// Return true if the PDO is a dual-rule PDO
+    fn is_dual_role(&self) -> bool;
 }
 
 /// Top-level PDO type
@@ -144,4 +146,11 @@ impl Common for Pdo {
             Pdo::Sink(pdo) => pdo.apdo_kind(),
         }
     }
+
+    fn is_dual_role(&self) -> bool {
+        match self {
+            Pdo::Source(pdo) => pdo.is_dual_role(),
+            Pdo::Sink(pdo) => pdo.is_dual_role(),
+        }
+    }
 }

src/pdo/sink.rs

@@ -38,6 +38,13 @@ impl Common for Pdo {
             _ => None,
         }
     }
+
+    fn is_dual_role(&self) -> bool {
+        match self {
+            Pdo::Fixed(data) => data.dual_role_power,
+            _ => false,
+        }
+    }
 }
 
 impl TryFrom<u32> for Pdo {

src/pdo/source.rs

@@ -38,6 +38,13 @@ impl Common for Pdo {
             _ => None,
         }
     }
+
+    fn is_dual_role(&self) -> bool {
+        match self {
+            Pdo::Fixed(data) => data.dual_role_power,
+            _ => false,
+        }
+    }
 }
 
 impl TryFrom<u32> for Pdo {