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#!/bin/sh

build=temp_build
compiler=i586-elf-gcc
linker=i586-elf-ld
opt="-Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I./kernel/include -c -fno-strict-aliasing -fno-common -fno-stack-protector"

echo "Building..."
echo "============================================="

echo "--Building C files..."
$compiler $opt -o $build/main.o ./kernel/main.c
$compiler $opt -o $build/console.o ./kernel/drivers/console.c
$compiler $opt -o $build/gdt.o ./kernel/gdt.c
$compiler $opt -o $build/idt.o ./kernel/idt.c
$compiler $opt -o $build/isrs.o ./kernel/isrs.c
$compiler $opt -o $build/irq.o ./kernel/irq.c
$compiler $opt -o $build/timer.o ./kernel/timer.c
$compiler $opt -o $build/keyboard.o ./kernel/drivers/keyboard.c

echo "--Building ASM files..."
nasm -f elf ./kernel/loader.asm -o $build/loader.o

echo "--Linking files..."
$linker -T linker.ld $build/*.o
echo "--Cleaning up temporary files..."
rm $build/*.o

echo "--Putting on floppy image..."
mount A: /mnt/floppy
cp kernel.bin /mnt/floppy/

echo "============================================="
echo "Build completed!"

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ENTRY (loader)
OUTPUT ("kernel.bin")

addr = 0x100000;

SECTIONS
{
	.text addr :
	ALIGN(0x1000)
	{
		*(.text*);
		*(.rodata*);
	}

	.data :
	ALIGN(0x1000)
	{
		*(.data*);
	}

	.bss :
	ALIGN(0x1000)
	{
		*(.bss*);
	}
}

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bits 32

global loader
global magic



extern kmain

; Multiboot header
MODULEALIGN equ 1<<0
MEMINFO     equ 1<<1
FLAGS       equ MODULEALIGN | MEMINFO
MAGIC       equ 0x1BADB002
CHECKSUM    equ -(MAGIC + FLAGS)

MultibootHeader:
	dd MAGIC
	dd FLAGS
	dd CHECKSUM

STACKSIZE   equ 0x4000     ; 16KB

loader:
	cmp eax, 0x2BADB002    ; verify booted with grub
	jne .bad

	mov esp, STACKSIZE + stack
	mov ax, 0x10
	mov ds, ax
	mov es, ax
	mov fs, ax
	mov gs, ax

	push ebx
	call kmain

	;cli				; clear interrupts
	;mov	eax, cr0		; set bit 0 in cr0--enter pmode
	;or	eax, 1
	;mov	cr0, eax

	;cli
	;hlt

.bad:
	cli
	hlt

align 4
stack:
	TIMES STACKSIZE db 0
...

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...
void kmain(void* MultibootHeader)
{
	...
	for(;;);
}

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void KeyboardWaitOutport()
{
	int fail_safe=200000;
	while ((inportb(0x64)&2)!=0 && fail_safe>0) fail_safe--;
}
void KeyboardSetScancodeSet(uint8 set)
{
    if (set>3 || set <= 0) return;

    KeyboardWaitOutport();
    outportb (0x60, 0xf0);

    KeyboardWaitOutport();
    outportb (0x60, set);

}

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cprintf("%i", scancode);

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    KeyboardWaitOutport();
    outportb (0x60, 6);

    KeyboardWaitOutport();
    outportb (0x60, 0);

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    KeyboardWaitOutport();
    outportb (0x64, 0x60);

    KeyboardWaitOutport();
    outportb (0x60, CONTROLLER_COMMAND_BYTE);

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    KeyboardWaitOutport();
    outportb (0x64, 0x20);                // Send "read configuration byte" command
    KeyboardWaitInport();
    foo = inportb(0x60);                  // foo = old value of configuration byte

    foo = foo & ~(1 << 6);                // foo = old value with translation disabled

    KeyboardWaitOutport();
    outportb (0x64, 0x60);                // Send "write configuration byte" command
    KeyboardWaitOutport();
    outportb (0x60, foo);                 // Set configuration byte to disable translation

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void keyboard_install()
{
	irq_install_handler(1, keyboard_handler);

	KeyboardWaitOutport();
	outportb(0x60, KeybCmdReset);	   // Reset kb


	KeyboardScancodeSet(2);
	KeyboardWaitOutport();
	outportb (0x64, 0x20);                // Send "read configuration byte" command
	KeyboardWaitInport();
	foo = inportb(0x60);                  // foo = old value of configuration byte

	foo = foo & ~(1 << 6);                // foo = old value with translation disabled

	KeyboardWaitOutport();
	outportb (0x64, 0x60);                // Send "write configuration byte" command
	KeyboardWaitOutport();
	outportb (0x60, foo);                 // Set configuration byte to disable translation

}