128 lines
3.6 KiB
Rust
128 lines
3.6 KiB
Rust
use libk::drivers::apic::enable_apic;
|
|
use libk::drivers::pic::ChainedPics;
|
|
use libk::prelude::*;
|
|
use x86_64::registers::control::Cr2;
|
|
use x86_64::structures::idt::{InterruptDescriptorTable, InterruptStackFrame, PageFaultErrorCode};
|
|
|
|
use spin::{Lazy, Mutex};
|
|
|
|
use super::gdt;
|
|
|
|
static IDT: Lazy<InterruptDescriptorTable> = Lazy::new(|| {
|
|
let mut idt = InterruptDescriptorTable::new();
|
|
idt.breakpoint.set_handler_fn(breakpoint_handler);
|
|
|
|
unsafe {
|
|
idt.double_fault
|
|
.set_handler_fn(double_fault_handler)
|
|
.set_stack_index(gdt::DOUBLE_FAULT_1ST_INDEX);
|
|
}
|
|
|
|
idt.general_protection_fault
|
|
.set_handler_fn(general_protection_fault_handler);
|
|
idt.page_fault.set_handler_fn(page_fault_handler);
|
|
|
|
// idt[InterruptIndex::Timer.as_u8()].set_handler_fn(timer_interrupt_handler);
|
|
// idt[InterruptIndex::Keyboard.as_u8()].set_handler_fn(keyboard_interrupt_handler);
|
|
idt
|
|
});
|
|
|
|
pub const PIC_1_OFFSET: u8 = 32;
|
|
pub const PIC_2_OFFSET: u8 = PIC_1_OFFSET + 8;
|
|
|
|
pub static PICS: Mutex<ChainedPics> =
|
|
Mutex::new(unsafe { ChainedPics::new(PIC_1_OFFSET, PIC_2_OFFSET) });
|
|
|
|
#[derive(Debug, Clone, Copy)]
|
|
#[repr(u8)]
|
|
pub enum InterruptIndex {
|
|
Timer = PIC_1_OFFSET,
|
|
Keyboard,
|
|
}
|
|
|
|
impl InterruptIndex {
|
|
const fn as_u8(self) -> u8 {
|
|
self as u8
|
|
}
|
|
|
|
fn _as_usize(self) -> usize {
|
|
usize::from(self.as_u8())
|
|
}
|
|
}
|
|
|
|
pub fn init_idt() {
|
|
IDT.load();
|
|
// enable_apic();
|
|
// TODO: fix apic
|
|
unsafe {
|
|
PICS.lock().initialize();
|
|
PICS.lock().write_masks(0xfc, 0xff);
|
|
}
|
|
}
|
|
|
|
extern "x86-interrupt" fn breakpoint_handler(stack_frame: InterruptStackFrame) {
|
|
serial_println!("Exception: Breakpoint\n{:#?}", stack_frame);
|
|
println_log!("Exception: Breakpoint\n{:#?}", stack_frame);
|
|
}
|
|
|
|
extern "x86-interrupt" fn general_protection_fault_handler(
|
|
stack_frame: InterruptStackFrame,
|
|
_error_code: u64,
|
|
) {
|
|
serial_println!("Exception: General Protection Fault\n{:#?}", stack_frame);
|
|
panic!("Exception: General Protection Fault\n{:#?}", stack_frame);
|
|
}
|
|
|
|
extern "x86-interrupt" fn double_fault_handler(
|
|
stack_frame: InterruptStackFrame,
|
|
_error_code: u64,
|
|
) -> ! {
|
|
serial_println!("Exception: Double Fault\n{:#?}", stack_frame);
|
|
panic!("Exception: Double Fault\n{:#?}", stack_frame);
|
|
}
|
|
|
|
extern "x86-interrupt" fn keyboard_interrupt_handler(_stack_frame: InterruptStackFrame) {
|
|
use pc_keyboard::{HandleControl, Keyboard, ScancodeSet1, layouts};
|
|
// use pc_keyboard::DecodedKey;
|
|
use spin::Mutex;
|
|
use x86_64::instructions::port::Port;
|
|
|
|
static KEYBOARD: Lazy<Mutex<Keyboard<layouts::Uk105Key, ScancodeSet1>>> = Lazy::new(|| {
|
|
Mutex::new(Keyboard::new(
|
|
ScancodeSet1::new(),
|
|
layouts::Uk105Key,
|
|
HandleControl::Ignore,
|
|
))
|
|
});
|
|
|
|
let _keyboard = KEYBOARD.lock();
|
|
let mut port = Port::new(0x60);
|
|
|
|
let scancode: u8 = unsafe { port.read() };
|
|
libk::drivers::io::keyboard::add_scancode(scancode);
|
|
|
|
unsafe {
|
|
PICS.lock()
|
|
.notify_end_of_interrupt(InterruptIndex::Keyboard.as_u8());
|
|
}
|
|
}
|
|
|
|
extern "x86-interrupt" fn timer_interrupt_handler(_stack_frame: InterruptStackFrame) {
|
|
unsafe {
|
|
PICS.lock()
|
|
.notify_end_of_interrupt(InterruptIndex::Timer.as_u8());
|
|
}
|
|
}
|
|
|
|
extern "x86-interrupt" fn page_fault_handler(
|
|
stack_frame: InterruptStackFrame,
|
|
error_code: PageFaultErrorCode,
|
|
) {
|
|
serial_println!("Exception: Page Fault");
|
|
serial_println!("Accessed Address: {:?}", Cr2::read());
|
|
serial_println!("Error Code: {:?}", error_code);
|
|
serial_println!("{:#?}", stack_frame);
|
|
|
|
crate::hcf();
|
|
}
|