RossComputerGuy/stardustos

newland/arch/x86/src/timer.c

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/**
 * NewLand Kernel - (C) 2019 Tristan Ross
 */
#include <newland/arch/io.h>
#include <newland/arch/irq.h>
#include <newland/arch/timer.h>

void timer_setfreq(uint32_t freq) {
    uint32_t div = 1193180 / freq;
    outb(0x43, 0x36);
    outb(0x40, div & 0xFF);
    outb(0x40, (div >> 8) & 0xFF);
}

void timer_init(uint32_t freq) {
    timer_setfreq(freq);
}