From d1128b8b4c210acbc48ead1303adb1e7c360359a Mon Sep 17 00:00:00 2001
From: littleblack111 <littleblack11111@gmail.com>
Date: Sun, 6 Sep 2026 19:19:49 +0800
Subject: refactor: uart

---
 kernel/src/io/output/serial/uart_16550.rs | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

(limited to 'kernel/src/io')

diff --git a/kernel/src/io/output/serial/uart_16550.rs b/kernel/src/io/output/serial/uart_16550.rs
index 3ecce1b..acdebda 100644
--- a/kernel/src/io/output/serial/uart_16550.rs
+++ b/kernel/src/io/output/serial/uart_16550.rs
@@ -5,11 +5,11 @@ use uart_16550::{
 
 #[repr(u16)]
 // TODO: parse & validate via acpi alors scratch
-pub enum SerialPortAddress {
+enum SerialPortAddress {
     COM1 = 0x3F8,
-    Com2 = 0x2F8,
-    Com3 = 0x3E8,
-    Com4 = 0x2E8,
+    COM2 = 0x2F8,
+    COM3 = 0x3E8,
+    COM4 = 0x2E8,
 }
 
 impl From<SerialPortAddress> for u16 {
@@ -22,14 +22,6 @@ pub struct Uart16550 {
     pub coms: [Option<Uart16550Tty<PioBackend>>; 4],
 }
 
-#[inline(always)]
-fn init_port(
-    cfg: &mut Option<Config>,
-    addr: SerialPortAddress,
-) -> Result<Option<Uart16550Tty<PioBackend>>, Uart16550TtyError<PortIoAddress>> {
-    cfg.take().map(|c| unsafe { Uart16550Tty::new_port(addr.into(), c) }).transpose()
-}
-
 impl Uart16550 {
     /// # Safety
     ///
@@ -40,17 +32,26 @@ impl Uart16550 {
     ///
     /// [`NUM_REGISTERS`]: crate::spec::NUM_REGISTERS
     pub unsafe fn init(
+        // TODO: more type safe
         mut config: [Option<Config>; 4],
     ) -> Result<Self, Uart16550TtyError<PortIoAddress>> {
         unsafe {
             Ok(Self {
                 coms: [
                     init_port(&mut config[0], SerialPortAddress::COM1)?,
-                    init_port(&mut config[1], SerialPortAddress::Com2)?,
-                    init_port(&mut config[2], SerialPortAddress::Com3)?,
-                    init_port(&mut config[3], SerialPortAddress::Com4)?,
+                    init_port(&mut config[1], SerialPortAddress::COM2)?,
+                    init_port(&mut config[2], SerialPortAddress::COM3)?,
+                    init_port(&mut config[3], SerialPortAddress::COM4)?,
                 ],
             })
         }
     }
 }
+
+#[inline(always)]
+unsafe fn init_port(
+    cfg: &mut Option<Config>,
+    addr: SerialPortAddress,
+) -> Result<Option<Uart16550Tty<PioBackend>>, Uart16550TtyError<PortIoAddress>> {
+    cfg.take().map(|c| unsafe { Uart16550Tty::new_port(addr.into(), c) }).transpose()
+}
-- 
cgit v1.2.3