#pragma once #include #define TICKS_PER_SECOND 1000 /* Timer related ports */ #define TIMER0_CTL 0x40 #define TIMER1_CTL 0x41 #define TIMER2_CTL 0x42 #define PIT_CTL 0x43 /* Building blocks for PIT_CTL */ #define TIMER0_SELECT 0x00 #define TIMER1_SELECT 0x40 #define TIMER2_SELECT 0x80 #define MODE_COUNTDOWN 0x00 #define MODE_ONESHOT 0x02 #define MODE_RATE 0x04 #define MODE_SQUARE_WAVE 0x06 #define WRITE_WORD 0x30 #define BASE_FREQUENCY 1193182 namespace PIT { void initialize(); dword ticks_this_second(); dword seconds_since_boot(); }