feat(kernel): keyboard driver (wip)

kernel/dev/at/kbd.inc

@@ -1,18 +1,54 @@
 	;; File: kbd.inc
+	;;
+	;; Usefull links:
+	;; - <https://wiki.osdev.org/PS/2_Keyboard>
+
+KBD_STATP = 0x64
+KBD_ATAP  = 0x60 
+KBS_DIB   = 0x01
 
 kbd_getc:
+	in al, KBD_STATP
+	and al, KBS_DIB
+	jz @f
+	in al, KBD_ATAP
+	mov ah, al
+	and ah, 0x80
+	jnz @f
+	mov edx, aKbdNormalMap
+	movzx eax, al
+	add edx, eax
+	mov byte al, [edx]
+	call cga_putc 
+@@:
 	ret
 
 kbd_irq:
 	pusha
 
-	mov esi, szMsgKbdIRQ
-	call klog
-
 	mov al, PIC_EOI
 	out PIC1_COMMAND, al
 
+	call kbd_getc
+
 	popa
 	iret
 
 szMsgKbdIRQ db "KBD: IRQ", 0
+
+aKbdNormalMap:
+	db    0, 0x1B,  '1',  '2',  '3',  '4',  '5',  '6',  '7',  '8',  '9',  '0'
+	db  '-',  '=', 0x08, 0x09,  'q',  'w',  'e',  'r',  't',  'y',  'u',  'i'
+	db  'o',  'p',  '[',  ']',   LF,    0,  'a',  's',  'd',  'f',  'g',  'h'
+	db  'j',  'k',  'l',  ';',  "'",  '`',    0,  '\',  'z',  'x',  'c',  'v'
+	db  'b',  'n',  'm',  ',',  '.',  '/',    0,  '*',    0,  ' ',    0,    0
+	db    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,   '7'
+	db   '8',  '9',  '-',  '4',  '5',  '6',  '+',  '1',  '2',  '3',  '0',  '.'
+	db     0,    0,    0,    0,    0,    0,    0,    0,    0, 0x1B,  '1',  '2'
+	db   '3',  '4',  '5',  '6',  '7',  '8',  '9',  '0',  '-',  '=', 0x08, 0x09
+	db   'q',  'w',  'e',  'r',  't',  'y',  'u',  'i',  'o',  'p',  '[',  ']'
+	db    LF,    0,  'a',  's',  'd',  'f',  'g',  'h',  'j',  'k',  'l',  ';'
+	db   "'",  '`',    0,  '\',  'z',  'x',  'c',  'v',  'b',  'n',  'm',  ','
+	db   '.',  '/',    0,  '*',    0,  ' ',    0,    0,    0,    0,    0,    0
+	db     0,    0,    0,    0,    0,    0,    0,   '7', '8',  '9',  '-',  '4'
+	db   '5',  '6',  '+',  '1',  '2',  '3',  '0',  '.'