;originally from Per Olofsson's IP65 library - http://www.paradroid.net/ip65

; ip65 main routines

.include "../inc/common.i"

	.export ip65_init
	.export ip65_process

	.export ip65_ctr
	.export ip65_ctr_arp
	.export ip65_ctr_ip

	.import eth_init
	.import timer_init
	.import arp_init
	.import ip_init

	.import eth_inp
	.import eth_rx

	.import ip_process
	.import arp_process

	.importzp eth_proto_arp


	.bss

ip65_ctr:	.res 1		; incremented for every incoming packet
ip65_ctr_arp:	.res 1		; incremented for every incoming arp packet
ip65_ctr_ip:	.res 1		; incremented for every incoming ip packet


	.code

; initialize stack
ip65_init:


	jsr eth_init		; initialize ethernet driver
  
	bcs @fail
	jsr timer_init		; initialize timer
	jsr arp_init		; initialize arp
	jsr ip_init		; initialize ip, icmp, udp, and tcp
	clc
@fail:
	rts


; maintenance routine
; polls for packets, and dispatches to listeners
ip65_process:
	jsr eth_rx		; check for incoming packets
	bcs @done

	lda eth_inp + 12	; type should be 08xx
	cmp #8
	bne @done

	lda eth_inp + 13
;	cmp #eth_proto_ip	; ip = 00
	beq @ip
	cmp #eth_proto_arp	; arp = 06
	beq @arp
@done:
	rts

@arp:
	inc ip65_ctr_arp
	jmp arp_process

@ip:
	inc ip65_ctr_ip
	jmp ip_process