软中断&定时器重构 (#223)

* 软中断&定时器重构

Co-authored-by: houmkh<houjiaying@DragonOS.org>

* 修改timer的clock()

* 删除debug信息

---------

Co-authored-by: houmkh <1119644616@qq.com>

kernel/src/driver/video/mod.rs

@@ -0,0 +1,62 @@
+use core::{ptr::null_mut, sync::atomic::{AtomicBool, Ordering}};
+
+use alloc::sync::Arc;
+
+use crate::{
+    exception::softirq::{SoftirqNumber, SoftirqVec, softirq_vectors},
+    include::bindings::bindings::video_refresh_framebuffer,
+};
+
+#[derive(Debug)]
+pub struct VideoRefreshFramebuffer{
+    running: AtomicBool
+}
+
+impl SoftirqVec for VideoRefreshFramebuffer {
+    fn run(&self) {
+        if self.set_run() == false{
+            return;
+        }
+        
+        unsafe {
+            video_refresh_framebuffer(null_mut());
+        }
+
+        self.clear_run();
+    }
+}
+impl VideoRefreshFramebuffer {
+    pub fn new() -> VideoRefreshFramebuffer {
+        VideoRefreshFramebuffer {
+            running: AtomicBool::new(false)
+        }
+    }
+
+    fn set_run(&self) -> bool {
+        let x = self
+            .running
+            .compare_exchange(false, true, Ordering::Acquire, Ordering::Relaxed);
+        if x.is_ok() {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    fn clear_run(&self) {
+        self.running.store(false, Ordering::Release);
+    }
+}
+
+pub fn register_softirq_video() {
+    // kdebug!("register_softirq_video");
+    let handler = Arc::new(VideoRefreshFramebuffer::new());
+    softirq_vectors()
+        .register_softirq(SoftirqNumber::VideoRefresh, handler)
+        .expect("register_softirq_video run failed");
+}
+// ======= 以下为给C提供的接口,video重构完后请删除 =======
+#[no_mangle]
+pub extern "C" fn rs_register_softirq_video() {
+    register_softirq_video();
+}