42-archive/kernel-rs/src/lib.rs

105 lines
2.9 KiB
Rust

#![feature(lang_items)]
#![feature(const_fn)]
#![feature(ptr_internals)]
#![feature(asm)]
#![no_std]
extern crate spin;
extern crate volatile;
extern crate rlibc;
#[macro_use]
mod vga;
mod context;
mod keyboard;
use context::CONTEXT;
use vga::{Color, ColorCode};
#[allow(dead_code)]
mod cpuio;
//TODO implement ACPI to have such functionality
/// Reboot the kernel
///
/// If reboot failed, will loop on a halt cmd
///
fn reboot() {
//TODO disable interrupt here something like : asm volatile ("cli");
// I will now clear the keyboard buffer
let mut buffer: u8 = 0x02;
while buffer == 0x02 {
buffer = cpuio::inb(0x64);
}
cpuio::outb(0x64, 0xFE);//Send reset value to CPU //TODO doesn't work
println!("Reicv reboot command. System cannot reboot yet, he is now halt\n");
cpuio::halt();
}
/// Shutdown the kernel
///
/// # Pre-requist:
/// Seems that he have to use following line command :
/// `-device isa-debug-exit,iobase=0xf4,iosize=0x04`
///
/// If shutdown failed, will loop on a halt cmd
///
fn shutdown() -> ! {
cpuio::outb(0xf4, 0x00);//TODO doesn't work :(
println!("Reicv shutdown command. System cannot shutdown properly yet, he is now halt\n");
cpuio::halt();
}
/// Print the kernel stack
///
fn print_kernel_stack() {
println!("It's a stack print");
}
#[no_mangle]
pub extern fn kmain() -> ! {
unsafe { CONTEXT.current_term().color_code = ColorCode::new(Color::White, Color::Cyan); }
print!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}",
format_args!("{: ^80}", r#" ,--, "#),
format_args!("{: ^80}", r#" ,--.'| ,----, "#),
format_args!("{: ^80}", r#" ,--, | : .' .' \ "#),
format_args!("{: ^80}", r#",---.'| : ' ,----,' | "#),
format_args!("{: ^80}", r#"; : | | ; | : . ; "#),
format_args!("{: ^80}", r#"| | : _' | ; |.' / "#),
format_args!("{: ^80}", r#": : |.' | `----'/ ; "#),
format_args!("{: ^80}", r#"| ' ' ; : / ; / "#),
format_args!("{: ^80}", r#"\ \ .'. | ; / /-, "#),
format_args!("{: ^80}", r#" `---`: | ' / / /.`| "#),
format_args!("{: ^80}", r#" ' ; |./__; : "#),
format_args!("{: ^80}", r#" | : ;| : .' "#),
format_args!("{: ^80}", r#" ' ,/ ; | .' "#),
format_args!("{: ^80}", r#" '--' `---' "#));
unsafe { CONTEXT.current_term().color_code = ColorCode::new(Color::White, Color::Black); }
unsafe { CONTEXT.vga1.prompt();CONTEXT.vga1.flush(); }
unsafe { CONTEXT.vga2.prompt(); }
loop {
keyboard::kbd_callback();
}
}
#[lang = "eh_personality"] #[no_mangle]
pub extern fn eh_personality() {
}
#[lang = "panic_fmt"] #[no_mangle]
pub extern fn panic_fmt(
fmt: core::fmt::Arguments, file: &'static str, line: u32
)
-> ! {
println!("PANIC: {}", fmt);
println!("FILE: {}", file);
println!("LINE: {}", line);
loop {}
}