From ce188c2c9fac3b2dc5b1fbd435345064028b656a Mon Sep 17 00:00:00 2001
From: Ygor Souza <ygor.souza@protonmail.com>
Date: Wed, 15 May 2024 19:43:49 +0200
Subject: [PATCH] Add Mark and Space variants to Parity enum

Closes #167
---
 CHANGELOG.md         |  1 +
 src/lib.rs           |  8 ++++++++
 src/posix/termios.rs | 14 ++++++++++++++
 src/windows/com.rs   |  2 ++
 src/windows/dcb.rs   |  2 ++
 5 files changed, 27 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index bdc8e453..1e345edd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ project adheres to [Semantic Versioning](https://semver.org/).
 ### Added
 * Added conversions between `DataBits`, `StopBits` types and their numeric representations
 * Added `FromStr` implementation for `FlowControl`
+* Added `Mark` and `Space` variants to `Parity` enum
 ### Changed
 ### Fixed
 * Fixes a bug where `available_ports()` returned disabled devices on Windows.
diff --git a/src/lib.rs b/src/lib.rs
index 200374e8..09caa473 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -204,6 +204,12 @@ pub enum Parity {
 
     /// Parity bit sets even number of 1 bits.
     Even,
+
+    /// Parity bit is set to 1.
+    Mark,
+
+    /// Parity bit is set to 0.
+    Space,
 }
 
 impl fmt::Display for Parity {
@@ -212,6 +218,8 @@ impl fmt::Display for Parity {
             Parity::None => write!(f, "None"),
             Parity::Odd => write!(f, "Odd"),
             Parity::Even => write!(f, "Even"),
+            Parity::Mark => write!(f, "Mark"),
+            Parity::Space => write!(f, "Space"),
         }
     }
 }
diff --git a/src/posix/termios.rs b/src/posix/termios.rs
index f53af807..f790d6f7 100644
--- a/src/posix/termios.rs
+++ b/src/posix/termios.rs
@@ -163,6 +163,20 @@ pub(crate) fn set_parity(termios: &mut Termios, parity: Parity) {
             termios.c_iflag |= libc::INPCK;
             termios.c_iflag &= !libc::IGNPAR;
         }
+        Parity::Mark => {
+            termios.c_cflag |= libc::PARODD;
+            termios.c_cflag |= libc::PARENB;
+            termios.c_iflag |= libc::INPCK;
+            termios.c_iflag &= !libc::IGNPAR;
+            termios.c_iflag |= libc::CMSPAR;
+        }
+        Parity::Space => {
+            termios.c_cflag &= !libc::PARODD;
+            termios.c_cflag |= libc::PARENB;
+            termios.c_iflag |= libc::INPCK;
+            termios.c_iflag &= !libc::IGNPAR;
+            termios.c_iflag |= libc::CMSPAR;
+        }
     };
 }
 
diff --git a/src/windows/com.rs b/src/windows/com.rs
index 5573ab77..990a9b05 100644
--- a/src/windows/com.rs
+++ b/src/windows/com.rs
@@ -314,6 +314,8 @@ impl SerialPort for COMPort {
         match dcb.Parity {
             ODDPARITY => Ok(Parity::Odd),
             EVENPARITY => Ok(Parity::Even),
+            MARKPARITY => Ok(Parity::Mark),
+            SPACEPARITY => Ok(Parity::Space),
             NOPARITY => Ok(Parity::None),
             _ => Err(Error::new(
                 ErrorKind::Unknown,
diff --git a/src/windows/dcb.rs b/src/windows/dcb.rs
index d0207fd6..66f0221d 100644
--- a/src/windows/dcb.rs
+++ b/src/windows/dcb.rs
@@ -81,6 +81,8 @@ pub(crate) fn set_parity(dcb: &mut DCB, parity: Parity) {
         Parity::None => NOPARITY,
         Parity::Odd => ODDPARITY,
         Parity::Even => EVENPARITY,
+        Parity::Mark => MARKPARITY,
+        Parity::Space => SPACEPARITY,
     };
 
     dcb.set_fParity(if parity == Parity::None { FALSE } else { TRUE } as DWORD);