From 05e1fedcc9cd30d1a34a65e640da45e980b4f859 Mon Sep 17 00:00:00 2001 From: Marvin Borner Date: Thu, 19 Sep 2019 19:56:59 +0200 Subject: Moved source to kernel directory --- src/timer/timer.c | 32 -------------------------------- 1 file changed, 32 deletions(-) delete mode 100644 src/timer/timer.c (limited to 'src/timer/timer.c') diff --git a/src/timer/timer.c b/src/timer/timer.c deleted file mode 100644 index 38f5be6..0000000 --- a/src/timer/timer.c +++ /dev/null @@ -1,32 +0,0 @@ -#include "../interrupts/interrupts.h" -#include "../io/io.h" - -volatile unsigned int timer_ticks = 0; - -void timer_phase(int hz) { - int divisor = 1193180 / hz; - send(0x43, 0x36); // 01 10 11 0b // CTR, RW, MODE, BCD - send(0x40, divisor & 0xFF); - send(0x40, divisor >> 8); -} - -// Executed 100 times per second -void timer_handler(struct regs *r) { - timer_ticks++; -} - -// "Delay" function with CPU sleep -void timer_wait(int ticks) { - unsigned int eticks; - - eticks = timer_ticks + ticks; - while (timer_ticks < eticks) { - __asm__ __volatile__ ("sti//hlt//cli"); - } -} - -// Install timer handler into IRQ0 -void timer_install() { - timer_phase(100); - irq_install_handler(0, timer_handler); -} \ No newline at end of file -- cgit v1.2.3