feat(pit): init pit

k/k.c

@@ -27,6 +27,7 @@
 #include "idt.h"
 #include "multiboot.h"
 #include "pic/pic.h"
+#include "pic/pit.h"
 #include "serial.h"
 #include "stdio.h"
 
@@ -36,6 +37,7 @@ static void k_init(void)
     init_gdt();
     init_idt();
     remap_pic();
+    init_pit();
 }
 
 void k_main(unsigned long magic, multiboot_info_t *info)

k/pic/pic.c

@@ -20,9 +20,8 @@ void remap_pic(void)
     outb(SLAVE_PORT_B, ICW4_INIT);
 
     // OCW1
-    outb(MASTER_PORT_B, PIC_PIN_0 | PIC_PIN_2 |
-                        PIC_PIN_3 | PIC_PIN_4 | PIC_PIN_5 |
-                        PIC_PIN_6 | PIC_PIN_7); // masking PIT for now
+    outb(MASTER_PORT_B, PIC_PIN_2 | PIC_PIN_3 | PIC_PIN_4 |
+                        PIC_PIN_5 | PIC_PIN_6 | PIC_PIN_7);
 
     asm volatile("sti");
 }