tailix/kernel
1
0
Fork 0
mirror of https://github.com/tailix/kernel.git synced 2024-12-11 11:35:39 -05:00
Code Releases Activity

Some refactoring

Browse source
This commit is contained in:
Braiden Vasco 2017-11-06 10:28:04 +00:00
parent 17e96678c1
commit 9b192a6780
1 changed files with 20 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
arch/pic.c
View file

@ -3,18 +3,28 @@
#include "logger.h"
#include "asm.h"
#define PIC_MASTER_COMMAND 0x20
#define PIC_MASTER_DATA 0x21
#define PIC_SLAVE_COMMAND 0xA0
#define PIC_SLAVE_DATA 0xA1
void pic_initialize()
{
logger_info_from("pic", "Remap the IRQ table.");
outportb(0x20, 0x11);
outportb(0xA0, 0x11);
outportb(0x21, 0x20);
outportb(0xA1, 0x28);
outportb(0x21, 0x04);
outportb(0xA1, 0x02);
outportb(0x21, 0x01);
outportb(0xA1, 0x01);
outportb(0x21, 0x00);
outportb(0xA1, 0x00);
outportb(PIC_MASTER_COMMAND, 0x11);
outportb(PIC_SLAVE_COMMAND, 0x11);
outportb(PIC_MASTER_DATA, 0x20);
outportb(PIC_SLAVE_DATA, 0x28);
outportb(PIC_MASTER_DATA, 0x04);
outportb(PIC_SLAVE_DATA, 0x02);
outportb(PIC_MASTER_DATA, 0x01);
outportb(PIC_SLAVE_DATA, 0x01);
outportb(PIC_MASTER_DATA, 0x00);
outportb(PIC_SLAVE_DATA, 0x00);
}