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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/slab.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 <net/syncppp.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"
/*
* The compile-time variable SPPPSTUP causes the module to be
* compiled without referencing any of the sync ppp routines.
*/
#ifdef SPPPSTUB
#define SPPP_detach(d) (void)0
#define SPPP_open(d) 0
#define SPPP_reopen(d) (void)0
#define SPPP_close(d) (void)0
#define SPPP_attach(d) (void)0
#define SPPP_do_ioctl(d,i,c) -EOPNOTSUPP
#else
#define SPPP_attach(x) sppp_attach((x)->pd)
#define SPPP_detach(x) sppp_detach((x)->pd->dev)
#define SPPP_open(x) sppp_open((x)->pd->dev)
#define SPPP_reopen(x) sppp_reopen((x)->pd->dev)
#define SPPP_close(x) sppp_close((x)->pd->dev)
#define SPPP_do_ioctl(x, y, z) sppp_do_ioctl((x)->pd->dev, (y), (z))
#endif
// init
void lmc_proto_init(lmc_softc_t *sc) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_init in");
switch(sc->if_type){
case LMC_PPP:
sc->pd = kmalloc(sizeof(struct ppp_device), GFP_KERNEL);
if (!sc->pd) {
printk("lmc_proto_init(): kmalloc failure!\n");
return;
}
sc->pd->dev = sc->lmc_device;
sc->if_ptr = sc->pd;
break;
case LMC_RAW:
break;
default:
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_init out");
}
// attach
void lmc_proto_attach(lmc_softc_t *sc) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_attach in");
switch(sc->if_type){
case LMC_PPP:
{
struct net_device *dev = sc->lmc_device;
SPPP_attach(sc);
dev->do_ioctl = lmc_ioctl;
}
break;
case LMC_NET:
{
struct net_device *dev = sc->lmc_device;
/*
* They set a few basics because they don't use sync_ppp
*/
dev->flags |= IFF_POINTOPOINT;
dev->hard_header_len = 0;
dev->addr_len = 0;
}
case LMC_RAW: /* Setup the task queue, maybe we should notify someone? */
{
}
default:
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_attach out");
}
// detach
void lmc_proto_detach(lmc_softc_t *sc) /*FOLD00*/
{
switch(sc->if_type){
case LMC_PPP:
SPPP_detach(sc);
break;
case LMC_RAW: /* Tell someone we're detaching? */
break;
default:
break;
}
}
// reopen
void lmc_proto_reopen(lmc_softc_t *sc) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_reopen in");
switch(sc->if_type){
case LMC_PPP:
SPPP_reopen(sc);
break;
case LMC_RAW: /* Reset the interface after being down, prerape to receive packets again */
break;
default:
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_reopen out");
}
// ioctl
int lmc_proto_ioctl(lmc_softc_t *sc, struct ifreq *ifr, int cmd) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_ioctl out");
switch(sc->if_type){
case LMC_PPP:
return SPPP_do_ioctl (sc, ifr, cmd);
break;
default:
return -EOPNOTSUPP;
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_ioctl out");
}
// open
void lmc_proto_open(lmc_softc_t *sc) /*FOLD00*/
{
int ret;
lmc_trace(sc->lmc_device, "lmc_proto_open in");
switch(sc->if_type){
case LMC_PPP:
ret = SPPP_open(sc);
if(ret < 0)
printk("%s: syncPPP open failed: %d\n", sc->name, ret);
break;
case LMC_RAW: /* We're about to start getting packets! */
break;
default:
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_open out");
}
// close
void lmc_proto_close(lmc_softc_t *sc) /*FOLD00*/
{
lmc_trace(sc->lmc_device, "lmc_proto_close in");
switch(sc->if_type){
case LMC_PPP:
SPPP_close(sc);
break;
case LMC_RAW: /* Interface going down */
break;
default:
break;
}
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 htons(ETH_P_WAN_PPP);
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:
skb->dev->last_rx = jiffies;
netif_rx(skb);
break;
case LMC_RAW:
break;
}
lmc_trace(sc->lmc_device, "lmc_proto_netif out");
}
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