108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
|
/*
|
||
|
|
* 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-drv.c,v 1.1 2006/06/17 22:41:27 adamdunkels Exp $
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "contiki-net.h"
|
||
|
|
#include "cs8900a.h"
|
||
|
|
|
||
|
|
static u8_t output(void);
|
||
|
|
|
||
|
|
static const struct uip_eth_addr addr =
|
||
|
|
{{0x00,0x00,0x00,0x64,0x64,0x64}};
|
||
|
|
|
||
|
|
SERVICE(tfe_drv_service, packet_service, { output };);
|
||
|
|
|
||
|
|
PROCESS(tfe_drv_process, "TFE driver");
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
static u8_t
|
||
|
|
output(void)
|
||
|
|
{
|
||
|
|
uip_arp_out();
|
||
|
|
cs8900a_send();
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
static void
|
||
|
|
pollhandler(void)
|
||
|
|
{
|
||
|
|
#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) {
|
||
|
|
/* 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();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
PROCESS_THREAD(tfe_drv_process, ev, data)
|
||
|
|
{
|
||
|
|
PROCESS_POLLHANDLER(pollhandler());
|
||
|
|
|
||
|
|
PROCESS_BEGIN();
|
||
|
|
|
||
|
|
|
||
|
|
uip_setethaddr(addr);
|
||
|
|
|
||
|
|
cs8900a_init();
|
||
|
|
|
||
|
|
SERVICE_REGISTER(tfe_drv_service);
|
||
|
|
|
||
|
|
process_poll(&tfe_drv_process);
|
||
|
|
|
||
|
|
while(1) {
|
||
|
|
PROCESS_YIELD();
|
||
|
|
}
|
||
|
|
|
||
|
|
PROCESS_END();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|