add IOPort struct

So that device IO can be be synchronized.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/machine/device_io.rs b/src/machine/device_io.rs
index 4573653..2a0c907 100644
--- a/src/machine/device_io.rs
+++ b/src/machine/device_io.rs
@@ -1,2 +1,22 @@
 #[cfg(target_arch = "x86_64")]
 pub use crate::arch::x86_64::io_port::*;
+
+// either use the io functions directly, or via a IOPort instance.
+pub struct IOPort(u16);
+impl IOPort {
+	pub fn new(port: u16) -> Self {
+		Self(port)
+	}
+	pub fn inw(&self) -> u16 {
+		inw(self.0)
+	}
+	pub fn inb(&self) -> u8 {
+		inb(self.0)
+	}
+	pub fn outw(&self, val: u16) {
+		outw(self.0, val);
+	}
+	pub fn outb(&self, val: u8) {
+		outb(self.0, val);
+	}
+}