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将TTY与stdio进行连接,实现基本的stdio功能 (#217)

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* 将stdio与tty接上
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2023-03-31 12:54:37 +08:00
committed by GitHub
parent 5fb12ce447
commit 20e3152e1e
21 changed files with 528 additions and 169 deletions
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99
kernel/src/libs/keyboard_parser.rs
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@ -1,4 +1,6 @@
use crate::kdebug;
use alloc::sync::Arc;
use crate::driver::tty::tty_device::TtyDevice;
#[allow(dead_code)]
pub const NUM_SCAN_CODES: u8 = 0x80;
@ -26,21 +28,25 @@ pub enum KeyFlag {
pub struct TypeOneFSM {
status: ScanCodeStatus,
current_state: TypeOneFSMState,
tty: Arc<TtyDevice>,
}
impl TypeOneFSM {
#[allow(dead_code)]
pub fn new() -> Self {
pub fn new(tty: Arc<TtyDevice>) -> Self {
Self {
status: ScanCodeStatus::new(),
current_state: TypeOneFSMState::Start,
tty,
}
}
/// @brief 解析扫描码
#[allow(dead_code)]
pub fn parse(&mut self, scancode: u8) -> TypeOneFSMState {
self.current_state = self.current_state.parse(scancode, &mut self.status);
self.current_state = self
.current_state
.parse(scancode, &mut self.status, &self.tty);
self.current_state
}
}
@ -63,30 +69,42 @@ pub enum TypeOneFSMState {
impl TypeOneFSMState {
/// @brief 状态机总控程序
fn parse(&self, scancode: u8, scancode_status: &mut ScanCodeStatus) -> TypeOneFSMState {
fn parse(
&self,
scancode: u8,
scancode_status: &mut ScanCodeStatus,
tty: &Arc<TtyDevice>,
) -> TypeOneFSMState {
// kdebug!("the code is {:#x}\n", scancode);
match self {
TypeOneFSMState::Start => {
return self.handle_start(scancode, scancode_status);
return self.handle_start(scancode, scancode_status, tty);
}
TypeOneFSMState::PauseBreak(n) => {
return self.handle_pause_break(*n, scancode_status);
return self.handle_pause_break(*n, scancode_status, tty);
}
TypeOneFSMState::Func0 => {
return self.handle_func0(scancode, scancode_status);
return self.handle_func0(scancode, scancode_status, tty);
}
TypeOneFSMState::Type3 => {
return self.handle_type3(scancode, scancode_status);
return self.handle_type3(scancode, scancode_status, tty);
}
TypeOneFSMState::PrtscPress(n) => {
return self.handle_prtsc_press(*n, scancode_status, tty)
}
TypeOneFSMState::PrtscPress(n) => return self.handle_prtsc_press(*n, scancode_status),
TypeOneFSMState::PrtscRelease(n) => {
return self.handle_prtsc_release(*n, scancode_status)
return self.handle_prtsc_release(*n, scancode_status, tty)
}
}
}
/// @brief 处理起始状态
fn handle_start(&self, scancode: u8, scancode_status: &mut ScanCodeStatus) -> TypeOneFSMState {
fn handle_start(
&self,
scancode: u8,
scancode_status: &mut ScanCodeStatus,
tty: &Arc<TtyDevice>,
) -> TypeOneFSMState {
//kdebug!("in handle_start the code is {:#x}\n",scancode);
match scancode {
0xe1 => {
@ -97,7 +115,7 @@ impl TypeOneFSMState {
}
_ => {
//kdebug!("in _d the code is {:#x}\n",scancode);
return TypeOneFSMState::Type3.handle_type3(scancode, scancode_status);
return TypeOneFSMState::Type3.handle_type3(scancode, scancode_status, tty);
}
}
}
@ -107,16 +125,17 @@ impl TypeOneFSMState {
&self,
scancode: u8,
scancode_status: &mut ScanCodeStatus,
tty: &Arc<TtyDevice>,
) -> TypeOneFSMState {
static PAUSE_BREAK_SCAN_CODE: [u8; 6] = [0xe1, 0x1d, 0x45, 0xe1, 0x9d, 0xc5];
let i = match self {
TypeOneFSMState::PauseBreak(i) => *i,
_ => {
return self.handle_type3(scancode, scancode_status);
return self.handle_type3(scancode, scancode_status, tty);
}
};
if scancode != PAUSE_BREAK_SCAN_CODE[i as usize] {
return self.handle_type3(scancode, scancode_status);
return self.handle_type3(scancode, scancode_status, tty);
} else {
if i == 5 {
// 所有Pause Break扫描码都被清除
@ -127,7 +146,12 @@ impl TypeOneFSMState {
}
}
fn handle_func0(&self, scancode: u8, scancode_status: &mut ScanCodeStatus) -> TypeOneFSMState {
fn handle_func0(
&self,
scancode: u8,
scancode_status: &mut ScanCodeStatus,
tty: &Arc<TtyDevice>,
) -> TypeOneFSMState {
//0xE0
match scancode {
0x2a => {
@ -190,7 +214,7 @@ impl TypeOneFSMState {
}
0x53 => {
scancode_status.del = true;
Self::emit(127);
Self::emit(tty, 127);
}
0xd3 => {
scancode_status.del = false;
@ -209,32 +233,32 @@ impl TypeOneFSMState {
}
0x48 => {
scancode_status.arrow_u = true;
Self::emit(224);
Self::emit(72);
Self::emit(tty, 224);
Self::emit(tty, 72);
}
0xc8 => {
scancode_status.arrow_u = false;
}
0x4b => {
scancode_status.arrow_l = true;
Self::emit(224);
Self::emit(75);
Self::emit(tty, 224);
Self::emit(tty, 75);
}
0xcb => {
scancode_status.arrow_l = false;
}
0x50 => {
scancode_status.arrow_d = true;
Self::emit(224);
Self::emit(80);
Self::emit(tty, 224);
Self::emit(tty, 80);
}
0xd0 => {
scancode_status.arrow_d = false;
}
0x4d => {
scancode_status.arrow_r = true;
Self::emit(224);
Self::emit(77);
Self::emit(tty, 224);
Self::emit(tty, 77);
}
0xcd => {
scancode_status.arrow_r = false;
@ -245,14 +269,14 @@ impl TypeOneFSMState {
scancode_status.kp_forward_slash = true;
let ch = '/' as u8;
Self::emit(ch);
Self::emit(tty, ch);
}
0xb5 => {
scancode_status.kp_forward_slash = false;
}
0x1c => {
scancode_status.kp_enter = true;
Self::emit('\n' as u8);
Self::emit(tty, '\n' as u8);
}
0x9c => {
scancode_status.kp_enter = false;
@ -264,7 +288,12 @@ impl TypeOneFSMState {
return TypeOneFSMState::Start;
}
fn handle_type3(&self, scancode: u8, scancode_status: &mut ScanCodeStatus) -> TypeOneFSMState {
fn handle_type3(
&self,
scancode: u8,
scancode_status: &mut ScanCodeStatus,
tty: &Arc<TtyDevice>,
) -> TypeOneFSMState {
// 判断按键是被按下还是抬起
let flag_make = if (scancode & (TYPE1_KEYCODE_FLAG_BREAK as u8)) > 0 {
false
@ -311,13 +340,15 @@ impl TypeOneFSMState {
}
if key != KeyFlag::NoneFlag {
Self::emit(ch);
Self::emit(tty, ch);
}
return TypeOneFSMState::Start;
}
fn emit(_ch: u8) {
// todo: 发送到tty
#[inline(always)]
fn emit(tty: &Arc<TtyDevice>, ch: u8) {
// 发送到tty
tty.input(&[ch]).ok();
}
/// @brief 处理Prtsc按下事件
@ -325,6 +356,7 @@ impl TypeOneFSMState {
&self,
scancode: u8,
scancode_status: &mut ScanCodeStatus,
tty: &Arc<TtyDevice>,
) -> TypeOneFSMState {
static PRTSC_SCAN_CODE: [u8; 4] = [0xe0, 0x2a, 0xe0, 0x37];
let i = match self {
@ -336,7 +368,7 @@ impl TypeOneFSMState {
return TypeOneFSMState::Start;
}
if scancode != PRTSC_SCAN_CODE[i as usize] {
return self.handle_type3(scancode, scancode_status);
return self.handle_type3(scancode, scancode_status, tty);
} else {
if i == 3 {
// 成功解析出PrtscPress
@ -352,6 +384,7 @@ impl TypeOneFSMState {
&self,
scancode: u8,
scancode_status: &mut ScanCodeStatus,
tty: &Arc<TtyDevice>,
) -> TypeOneFSMState {
static PRTSC_SCAN_CODE: [u8; 4] = [0xe0, 0xb7, 0xe0, 0xaa];
let i = match self {
@ -363,7 +396,7 @@ impl TypeOneFSMState {
return TypeOneFSMState::Start;
}
if scancode != PRTSC_SCAN_CODE[i as usize] {
return self.handle_type3(scancode, scancode_status);
return self.handle_type3(scancode, scancode_status, tty);
} else {
if i == 3 {
// 成功解析出PrtscRelease
@ -446,7 +479,7 @@ const TYPE1_KEY_CODE_MAPTABLE: [u8; 256] = [
/*0x08*/ '7' as u8, '&' as u8, /*0x09*/ '8' as u8, '*' as u8,
/*0x0a*/ '9' as u8, '(' as u8, /*0x0b*/ '0' as u8, ')' as u8,
/*0x0c*/ '-' as u8, '_' as u8, /*0x0d*/ '=' as u8, '+' as u8,
/*0x0e*/ 0x0e as u8, 0x0e as u8, // BACKSPACE
/*0x0e \b */ 8 as u8, 8 as u8, // BACKSPACE
/*0x0f*/ '\t' as u8, '\t' as u8, // TAB
/*0x10*/ 'q' as u8, 'Q' as u8, /*0x11*/ 'w' as u8, 'W' as u8,
/*0x12*/ 'e' as u8, 'E' as u8, /*0x13*/ 'r' as u8, 'R' as u8,