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Fix arrow keys

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Mark
2025-03-02 10:23:37 -08:00
parent bf202a42ba
commit 903b2d7ead
1 changed files with 29 additions and 15 deletions
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44
tetros/src/lib.rs
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@@ -89,23 +89,37 @@ enum InputKey {
} }
extern "x86-interrupt" fn keyboard_handler(_stack_frame: InterruptStackFrame) { extern "x86-interrupt" fn keyboard_handler(_stack_frame: InterruptStackFrame) {
let scancode = unsafe { inb(0x60) }; 'key_block: {
println!("{:x?}", scancode); let scancode = unsafe { inb(0x60) };
let key = match scancode {
0x11 => Some(InputKey::Up), // W
0x1E => Some(InputKey::Left), // A
0x1F => Some(InputKey::Down), // S
0x20 => Some(InputKey::Right), // D
let key = match scancode { // Extended codes
0x11 => Some(InputKey::Up), 0xE0 => {
0x1E => Some(InputKey::Left), let scancode = unsafe { inb(0x60) };
0x1F => Some(InputKey::Down), match scancode {
0x20 => Some(InputKey::Right), 0x48 => Some(InputKey::Up), // Up arrow
0xE0 => { 0x4B => Some(InputKey::Left), // Left arrow
let scancode = unsafe { inb(0x60) }; 0x50 => Some(InputKey::Down), // Down arrow
println!("e {:x?}", scancode); 0x4D => Some(InputKey::Right), // Right arrow
None _ => break 'key_block, // Ignore unknown codes
} }
_ => None, }
};
// Ignore unrecognized keycodes.
//
// Note that this does NOT return to None!
// If we do that, "release" keycodes will
// immediately clear "press" keycodes.
_ => break 'key_block,
};
*LAST_INPUT.lock() = key;
}
*LAST_INPUT.lock() = key;
PIC.lock().send_eoi(InterruptIndex::Keyboard.as_u8()); PIC.lock().send_eoi(InterruptIndex::Keyboard.as_u8());
} }