Refactor project structure

kernel/comps/time/src/rtc.rs

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MPL-2.0
+
+use core::sync::atomic::{AtomicU8, Ordering::Relaxed};
+
+use aster_frame::arch::x86::device::cmos::{get_century_register, CMOS_ADDRESS, CMOS_DATA};
+
+pub(crate) static CENTURY_REGISTER: AtomicU8 = AtomicU8::new(0);
+
+pub fn init() {
+    let Some(century_register) = get_century_register() else {
+        return;
+    };
+    CENTURY_REGISTER.store(century_register, Relaxed);
+}
+
+pub fn get_cmos(reg: u8) -> u8 {
+    CMOS_ADDRESS.write(reg);
+    CMOS_DATA.read()
+}
+
+pub fn is_updating() -> bool {
+    CMOS_ADDRESS.write(0x0A);
+    CMOS_DATA.read() & 0x80 != 0
+}