66 lines
1.6 KiB
PHP
66 lines
1.6 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
|
|
;; Distributed under terms of the GNU General Public License ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
rerouteirqs:
|
|
|
|
cli
|
|
mov al,0x11 ; icw4, edge triggered
|
|
out 0x20,al
|
|
out 0xA0,al
|
|
|
|
mov al,0x20 ; generate 0x20 +
|
|
out 0x21,al
|
|
mov al,0x28 ; generate 0x28 +
|
|
out 0xA1,al
|
|
|
|
mov al,0x04 ; slave at irq2
|
|
out 0x21,al
|
|
mov al,0x02 ; at irq9
|
|
out 0xA1,al
|
|
|
|
mov al,0x01 ; 8086 mode
|
|
out 0x21,al
|
|
out 0xA1,al
|
|
|
|
mov al,255 ; mask all irq's
|
|
out 0xA1,al
|
|
out 0x21,al
|
|
|
|
mov al,255 ; mask all irq's
|
|
out 0xA1,al
|
|
out 0x21,al
|
|
ret
|
|
|
|
|
|
align 4
|
|
;proc enable_irq stdcall, irq_line:dword
|
|
enable_irq: ; FIXME make fastcall
|
|
mov ebx, [esp+4] ;irq_line
|
|
mov edx, 0x21
|
|
cmp ebx, 8
|
|
jb @F
|
|
mov edx, 0xA1
|
|
sub ebx,8
|
|
@@:
|
|
in al,dx
|
|
btr eax, ebx
|
|
out dx, al
|
|
ret 4
|
|
|
|
|
|
align 4
|
|
;proc irq_eoi fastcall, irq_line:dword
|
|
irq_eoi:
|
|
cmp cl, 8
|
|
mov al, 0x20
|
|
jb @f
|
|
out 0xa0, al
|
|
@@:
|
|
out 0x20, al
|
|
ret
|