lmc_proto.c
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/*
* Copyright (c) 1997-2000 LAN Media Corporation (LMC)
* All rights reserved. www.lanmedia.com
*
* This code is written by:
* Andrew Stanley-Jones (asj@cban.com)
* Rob Braun (bbraun@vix.com),
* Michael Graff (explorer@vix.com) and
* Matt Thomas (matt@3am-software.com).
*
* With Help By:
* David Boggs
* Ron Crane
* Allan Cox
*
* This software may be used and distributed according to the terms
* of the GNU General Public License version 2, incorporated herein by reference.
*
* Driver for the LanMedia LMC5200, LMC5245, LMC1000, LMC1200 cards.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/if_arp.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/inet.h>
#include <linux/workqueue.h>
#include <linux/proc_fs.h>
#include <linux/bitops.h>
#include <asm/processor.h> /* Processor type for cache alignment. */
#include <asm/io.h>
#include <asm/dma.h>
#include <linux/smp.h>
#include "lmc.h"
#include "lmc_var.h"
#include "lmc_debug.h"
#include "lmc_ioctl.h"
#include "lmc_proto.h"
// attach
void lmc_proto_attach(lmc_softc_t *sc) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_attach in");
if (sc->if_type == LMC_NET) {
struct net_device *dev = sc->lmc_device;
/*
* They set a few basics because they don't use HDLC
*/
dev->flags |= IFF_POINTOPOINT;
dev->hard_header_len = 0;
dev->addr_len = 0;
}
lmc_trace(sc->lmc_device, "lmc_proto_attach out");
}
int lmc_proto_ioctl(lmc_softc_t *sc, struct ifreq *ifr, int cmd)
{
lmc_trace(sc->lmc_device, "lmc_proto_ioctl");
if (sc->if_type == LMC_PPP)
return hdlc_ioctl(sc->lmc_device, ifr, cmd);
return -EOPNOTSUPP;
}
int lmc_proto_open(lmc_softc_t *sc)
{
int ret = 0;
lmc_trace(sc->lmc_device, "lmc_proto_open in");
if (sc->if_type == LMC_PPP) {
ret = hdlc_open(sc->lmc_device);
if (ret < 0)
printk(KERN_WARNING "%s: HDLC open failed: %d\n",
sc->name, ret);
}
lmc_trace(sc->lmc_device, "lmc_proto_open out");
return ret;
}
void lmc_proto_close(lmc_softc_t *sc)
{
lmc_trace(sc->lmc_device, "lmc_proto_close in");
if (sc->if_type == LMC_PPP)
hdlc_close(sc->lmc_device);
lmc_trace(sc->lmc_device, "lmc_proto_close out");
}
__be16 lmc_proto_type(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_type in");
switch(sc->if_type){
case LMC_PPP:
return hdlc_type_trans(skb, sc->lmc_device);
break;
case LMC_NET:
return htons(ETH_P_802_2);
break;
case LMC_RAW: /* Packet type for skbuff kind of useless */
return htons(ETH_P_802_2);
break;
default:
printk(KERN_WARNING "%s: No protocol set for this interface, assuming 802.2 (which is wrong!!)\n", sc->name);
return htons(ETH_P_802_2);
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_tye out");
}
void lmc_proto_netif(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_netif in");
switch(sc->if_type){
case LMC_PPP:
case LMC_NET:
default:
netif_rx(skb);
break;
case LMC_RAW:
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_netif out");
}