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feat(kernel): keyboard driver (wip)

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d0p1 🏳️‍⚧️ 2024-07-16 10:37:36 +02:00
parent 140a204ebf
commit 4022be6c36
1 changed files with 39 additions and 3 deletions
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42
kernel/dev/at/kbd.inc
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@ -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', '.'