implements the PIT

kernel/arch/io/pit.c

@@ -61,4 +61,15 @@ void set_pit_count(uint8_t channel, uint16_t count) // Only in lobyte/hibyte mod
 	// TODO: make sure to set interrupts
 }
 
+void init_pit(uint8_t init_command, uint8_t channel, uint32_t divisor)
+{
+	uint32_t normalized_div = normalize_divisor(divisor);
 
+	pit.divisor = normalized_div;
+	pit.interrupts = 0;
+
+	outb(PIT_CMD_REG, init_command); // access mode must be lobyte/hibyte
+	
+	outb(channel, normalized_div & 0xFF);
+	outb(channel, (normalized_div & 0xFF00) >> 8);
+}