将TTY与stdio进行连接,实现基本的stdio功能 (#217)

* 将stdio与tty接上

kernel/src/driver/keyboard/ps2_keyboard.rs

@@ -3,6 +3,7 @@ use core::sync::atomic::AtomicI32;
 use alloc::sync::{Arc, Weak};
 
 use crate::{
+    driver::tty::tty_device::TTY_DEVICES,
     filesystem::{
         devfs::{devfs_register, DevFS, DeviceINode},
         vfs::{core::generate_inode_id, file::FileMode, FileType, IndexNode, Metadata, PollStatus},
@@ -17,7 +18,14 @@ use crate::{
 pub struct LockedPS2KeyBoardInode(RwLock<PS2KeyBoardInode>, AtomicI32); // self.1 用来记录有多少个文件打开了这个inode
 
 lazy_static! {
-    static ref PS2_KEYBOARD_FSM: SpinLock<TypeOneFSM> = SpinLock::new(TypeOneFSM::new());
+    static ref PS2_KEYBOARD_FSM: SpinLock<TypeOneFSM> = {
+        let tty0 = TTY_DEVICES
+            .read()
+            .get("tty0")
+            .expect("Initializing PS2_KEYBOARD_FSM: Cannot found TTY0!")
+            .clone();
+        SpinLock::new(TypeOneFSM::new(tty0))
+    };
 }
 
 #[derive(Debug)]