x86: fix ps/2 E0-keys not working on some devices

kernel/src/arch/x86/peripherals/ps2/mod.rs

@@ -22,6 +22,8 @@ mod codeset;
 struct Inner {
     command: IoPort<u8>,
     data: IoPort<u8>,
+
+    e0: bool,
 }
 
 /// PS/2 controller driver
@@ -79,7 +81,6 @@ impl InterruptHandler for PS2Controller {
     fn handle_irq(self: Arc<Self>, _vector: IrqVector) -> bool {
         let mut count = 0;
         let mut inner = self.inner.lock();
-        let mut e0 = false;
 
         loop {
             let Some(mut scancode) = inner.try_recv() else {
@@ -89,7 +90,7 @@ impl InterruptHandler for PS2Controller {
             count += 1;
 
             if scancode == 0xE0 {
-                e0 = true;
+                inner.e0 = true;
                 continue;
             }
             let release = scancode >= 0x80;
@@ -98,14 +99,14 @@ impl InterruptHandler for PS2Controller {
                 scancode -= 0x80;
             }
 
-            let key = translate(e0, scancode);
+            let key = translate(inner.e0, scancode);
             let event = if release {
                 KeyboardKeyEvent::Released(key)
             } else {
                 KeyboardKeyEvent::Pressed(key)
             };
 
-            e0 = false;
+            inner.e0 = false;
 
             ygg_driver_input::send_event(event);
         }
@@ -156,6 +157,7 @@ impl PS2Controller {
         let inner = Inner {
             command: IoPort::new(cmd_port),
             data: IoPort::new(data_port),
+            e0: false,
         };
 
         Self {