nes-proj/backyard/platform/c64/net/tfe-dump-drv.c

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/*
* Copyright (c) 2001-2004, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the uIP TCP/IP stack.
*
* $Id: tfe-dump-drv.c,v 1.1 2007/05/23 23:11:30 oliverschmidt Exp $
*
*/
#include "contiki-net.h"
#include "cs8900a.h"
static void output(u8_t *hdr, u16_t hdrlen, u8_t *data, u16_t datalen);
/* 00:0E:3A is the OUI of Cirrus Logic, 64:64:64 just means C64 */
static const struct uip_eth_addr addr =
{{0x00,0x0e,0x3a,0x64,0x64,0x64}};
static const struct packet_service_state state =
{
PACKET_SERVICE_VERSION,
output
};
EK_EVENTHANDLER(eventhandler, ev, data);
EK_POLLHANDLER(pollhandler);
EK_PROCESS(proc, PACKET_SERVICE_NAME ": TFE", EK_PRIO_NORMAL,
eventhandler, pollhandler, (void *)&state);
#include "tcpdump.h"
#include <string.h>
#include "ctk/ctk.h"
#define DUMP_WIDTH 38
#define DUMP_HEIGHT 20
static struct ctk_window window;
static char dump[DUMP_WIDTH * DUMP_HEIGHT];
static struct ctk_label dumplabel =
{CTK_LABEL(0, 0, DUMP_WIDTH, DUMP_HEIGHT, dump)};
static void
dump_packet(void)
{
memcpy(dump, &dump[DUMP_WIDTH], DUMP_WIDTH * (DUMP_HEIGHT - 1));
tcpdump_print(&dump[DUMP_WIDTH * (DUMP_HEIGHT - 1)], DUMP_WIDTH);
CTK_WIDGET_REDRAW(&dumplabel);
}
/*---------------------------------------------------------------------------*/
LOADER_INIT_FUNC(tfe_dump_drv_init, arg)
{
arg_free(arg);
ek_service_start(PACKET_SERVICE_NAME, &proc);
}
/*---------------------------------------------------------------------------*/
static void
output(u8_t *hdr, u16_t hdrlen, u8_t *data, u16_t datalen)
{
uip_arp_out();
cs8900a_send();
dump_packet();
}
/*---------------------------------------------------------------------------*/
EK_EVENTHANDLER(eventhandler, ev, data)
{
switch(ev) {
case EK_EVENT_INIT:
case EK_EVENT_REPLACE:
ctk_window_new(&window, DUMP_WIDTH, DUMP_HEIGHT, "TFE dump");
CTK_WIDGET_ADD(&window, &dumplabel);
ctk_window_open(&window);
uip_setethaddr(addr);
cs8900a_init();
break;
case EK_EVENT_REQUEST_REPLACE:
ctk_window_close(&window);
ek_replace((struct ek_proc *)data, NULL);
LOADER_UNLOAD();
break;
case EK_EVENT_REQUEST_EXIT:
ctk_window_close(&window);
ek_exit();
LOADER_UNLOAD();
break;
default:
break;
}
}
/*---------------------------------------------------------------------------*/
EK_POLLHANDLER(pollhandler)
{
#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
/* Poll Ethernet device to see if there is a frame avaliable. */
uip_len = cs8900a_poll();
if(uip_len > 0) {
dump_packet();
/* A frame was avaliable (and is now read into the uip_buf), so
we process it. */
if(BUF->type == HTONS(UIP_ETHTYPE_IP)) {
uip_arp_ipin();
uip_len -= sizeof(struct uip_eth_hdr);
tcpip_input();
} else if(BUF->type == HTONS(UIP_ETHTYPE_ARP)) {
uip_arp_arpin();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if(uip_len > 0) {
cs8900a_send();
}
}
}
}
/*---------------------------------------------------------------------------*/