void kernel_init(boot_info_t bootInfo) {
tty_init();
multiboot_init(bootInfo.multiboot_magic, bootInfo.multiboot_addr);
if(a20_enable()) {
serial_writestring(1, "A20 enable failed - triggering panic\n");
kernel_panic();
};
gdt_install();
idt_install();
irq_install();
_protected_mode_init();
paging_init();
_paging_enable();
PIC_init();
serial_init();
keyboard_init();
timer_init();
serial_writestring(1, "End kernel_init\n");
kernel_main();
};
static int init_serial() {
outportb(PORT + 1, 0x00); // Disable all interrupts
outportb(PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
outportb(PORT + 0, 0x03); // Set divisor to 3 (lo byte) 38400 baud
outportb(PORT + 1, 0x00); // (hi byte)
outportb(PORT + 3, 0x03); // 8 bits, no parity, one stop bit
outportb(PORT + 2, 0xC7); // Enable FIFO, clear them, with 14-byte threshold
outportb(PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
static console_t con = {
.writestring = serial_writestring,
.setcolor = serial_setcolor,
.getcolor = serial_getcolor
};
console_register(con);
serial_writestring("Serial debugging console is up ");
return 1;
}
