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Fixed kbd (buffer flush)

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This commit is contained in:
xamidev
2026-03-08 09:54:45 +01:00
parent 77d9df6f48
commit 5e9c582833
5 changed files with 23 additions and 15 deletions
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30
src/io/kbd/ps2.c
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@@ -176,9 +176,6 @@ void keyboard_handler()
key_status &= ~ALT_PRESSED_BIT;
break;
}
// Send EOI
outb(0x20, 0x20);
return;
}
else
@@ -200,20 +197,21 @@ void keyboard_handler()
default:
{
// Should we get a SHIFTED char or a regular one?
unsigned char c = (key_status & SHIFT_PRESSED_BIT) ? keymap_shifted[scancode] : keymap[scancode];
if (c)
// Avoiding buffer overflow from extended keys lol
if (scancode < 128)
{
// Should probably have a keyboard buffer here... instead of this
_putchar(c);
// Should we get a SHIFTED char or a regular one?
unsigned char c = (key_status & SHIFT_PRESSED_BIT) ? keymap_shifted[scancode] : keymap[scancode];
if (c)
{
// Should probably have a keyboard buffer here... instead of this
_putchar(c);
}
}
}
}
}
// End of Interrupt (to master PIC)
outb(0x20, 0x20);
}
void keyboard_init(unsigned char layout)
@@ -233,10 +231,16 @@ void keyboard_init(unsigned char layout)
break;
default:
skputs("Unsupported layout.");
panic(NULL, "Unsupported keyboard layout");
return;
}
// Flush keyboard buffer
while (inb(0x64) & 1)
{
inb(0x60);
}
// Unmask IRQ1
uint8_t mask = inb(0x21);
mask &= ~(1 << 1);