.{memory, log} := @use("../../../libraries/stn/src/lib.hb");
.{bit5} := @use("bits.hb")

init := fn(): void {
	memory.outb(0x64, 0xAD)
	memory.outb(0x64, 0xA7)
	//Disables ports to make sure that they won't interfere with the setup process.

	loop if (memory.inb(0x64) & 1) == 0 break else memory.inb(0x60)
	//Flushes any output because apperantly that might interfere with stuff.

	memory.outb(0x64, 0xA8)
	//Enables port 2.
	memory.outb(0x64, 0x20)
	//Gimme configuration byte.
	loop if (memory.inb(0x64) & 1) == 1 break
	ports[1].exists = bit5(memory.inb(0x60)) == false
	if ports[1].exists {
		memory.outb(0x64, 0xA7)
	}

	loop if (memory.inb(0x64) & 1) == 0 break else memory.inb(0x60)
	//Flushes any output because apperantly that might interfere with stuff.

	memory.outb(0x64, 0xAB)
	loop if (memory.inb(0x64) & 1) == 1 break
	ports[0].exists = memory.inb(0x60) == 0x0
	//Test port 1.

	if ports[1].exists {
		memory.outb(0x64, 0xA9)
		loop if (memory.inb(0x64) & 1) == 1 break
		ports[1].exists = memory.inb(0x60) == 0x0
	}
	//Test port 2.

	if (ports[0].exists | ports[1].exists) == false {
		log.error("No ports detected! No input will be processed! Cannot handle this!\0")
	}

	if ports[0].exists {
		log.info("Port 1 exists.\0")
		memory.outb(0x64, 0xAE)
		//Enables port 1.
		ports[0].commands_queued = 1
	}
	if ports[1].exists {
		log.info("Port 2 exists.\0")
		memory.outb(0x64, 0xA8)
		//Enables port 2.
		ports[1].commands_queued = 1
	}
}