1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
249 lines
6 KiB
C
249 lines
6 KiB
C
/*
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* Copyright (c) 1997-2000 LAN Media Corporation (LMC)
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* All rights reserved. www.lanmedia.com
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*
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* This code is written by:
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* Andrew Stanley-Jones (asj@cban.com)
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* Rob Braun (bbraun@vix.com),
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* Michael Graff (explorer@vix.com) and
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* Matt Thomas (matt@3am-software.com).
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*
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* With Help By:
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* David Boggs
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* Ron Crane
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* Allan Cox
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License version 2, incorporated herein by reference.
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*
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* Driver for the LanMedia LMC5200, LMC5245, LMC1000, LMC1200 cards.
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*/
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/ptrace.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/in.h>
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#include <linux/if_arp.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/inet.h>
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#include <linux/workqueue.h>
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#include <linux/proc_fs.h>
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#include <linux/bitops.h>
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#include <net/syncppp.h>
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#include <asm/processor.h> /* Processor type for cache alignment. */
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <linux/smp.h>
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#include "lmc.h"
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#include "lmc_var.h"
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#include "lmc_debug.h"
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#include "lmc_ioctl.h"
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#include "lmc_proto.h"
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/*
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* The compile-time variable SPPPSTUP causes the module to be
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* compiled without referencing any of the sync ppp routines.
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*/
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#ifdef SPPPSTUB
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#define SPPP_detach(d) (void)0
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#define SPPP_open(d) 0
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#define SPPP_reopen(d) (void)0
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#define SPPP_close(d) (void)0
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#define SPPP_attach(d) (void)0
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#define SPPP_do_ioctl(d,i,c) -EOPNOTSUPP
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#else
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#define SPPP_attach(x) sppp_attach((x)->pd)
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#define SPPP_detach(x) sppp_detach((x)->pd->dev)
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#define SPPP_open(x) sppp_open((x)->pd->dev)
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#define SPPP_reopen(x) sppp_reopen((x)->pd->dev)
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#define SPPP_close(x) sppp_close((x)->pd->dev)
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#define SPPP_do_ioctl(x, y, z) sppp_do_ioctl((x)->pd->dev, (y), (z))
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#endif
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// init
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void lmc_proto_init(lmc_softc_t *sc) /*FOLD00*/
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{
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lmc_trace(sc->lmc_device, "lmc_proto_init in");
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switch(sc->if_type){
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case LMC_PPP:
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sc->pd = kmalloc(sizeof(struct ppp_device), GFP_KERNEL);
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if (!sc->pd) {
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printk("lmc_proto_init(): kmalloc failure!\n");
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return;
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}
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sc->pd->dev = sc->lmc_device;
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sc->if_ptr = sc->pd;
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break;
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case LMC_RAW:
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break;
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default:
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_init out");
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}
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// attach
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void lmc_proto_attach(lmc_softc_t *sc) /*FOLD00*/
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{
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lmc_trace(sc->lmc_device, "lmc_proto_attach in");
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switch(sc->if_type){
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case LMC_PPP:
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{
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struct net_device *dev = sc->lmc_device;
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SPPP_attach(sc);
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dev->do_ioctl = lmc_ioctl;
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}
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break;
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case LMC_NET:
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{
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struct net_device *dev = sc->lmc_device;
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/*
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* They set a few basics because they don't use sync_ppp
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*/
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dev->flags |= IFF_POINTOPOINT;
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dev->hard_header = NULL;
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dev->hard_header_len = 0;
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dev->addr_len = 0;
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}
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case LMC_RAW: /* Setup the task queue, maybe we should notify someone? */
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{
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}
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default:
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_attach out");
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}
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// detach
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void lmc_proto_detach(lmc_softc_t *sc) /*FOLD00*/
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{
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switch(sc->if_type){
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case LMC_PPP:
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SPPP_detach(sc);
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break;
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case LMC_RAW: /* Tell someone we're detaching? */
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break;
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default:
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break;
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}
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}
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// reopen
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void lmc_proto_reopen(lmc_softc_t *sc) /*FOLD00*/
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{
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lmc_trace(sc->lmc_device, "lmc_proto_reopen in");
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switch(sc->if_type){
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case LMC_PPP:
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SPPP_reopen(sc);
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break;
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case LMC_RAW: /* Reset the interface after being down, prerape to receive packets again */
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break;
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default:
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_reopen out");
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}
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// ioctl
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int lmc_proto_ioctl(lmc_softc_t *sc, struct ifreq *ifr, int cmd) /*FOLD00*/
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{
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lmc_trace(sc->lmc_device, "lmc_proto_ioctl out");
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switch(sc->if_type){
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case LMC_PPP:
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return SPPP_do_ioctl (sc, ifr, cmd);
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break;
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default:
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return -EOPNOTSUPP;
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_ioctl out");
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}
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// open
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void lmc_proto_open(lmc_softc_t *sc) /*FOLD00*/
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{
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int ret;
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lmc_trace(sc->lmc_device, "lmc_proto_open in");
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switch(sc->if_type){
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case LMC_PPP:
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ret = SPPP_open(sc);
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if(ret < 0)
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printk("%s: syncPPP open failed: %d\n", sc->name, ret);
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break;
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case LMC_RAW: /* We're about to start getting packets! */
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break;
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default:
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_open out");
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}
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// close
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void lmc_proto_close(lmc_softc_t *sc) /*FOLD00*/
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{
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lmc_trace(sc->lmc_device, "lmc_proto_close in");
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switch(sc->if_type){
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case LMC_PPP:
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SPPP_close(sc);
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break;
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case LMC_RAW: /* Interface going down */
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break;
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default:
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_close out");
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}
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unsigned short lmc_proto_type(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
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{
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lmc_trace(sc->lmc_device, "lmc_proto_type in");
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switch(sc->if_type){
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case LMC_PPP:
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return htons(ETH_P_WAN_PPP);
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break;
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case LMC_NET:
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return htons(ETH_P_802_2);
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break;
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case LMC_RAW: /* Packet type for skbuff kind of useless */
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return htons(ETH_P_802_2);
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break;
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default:
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printk(KERN_WARNING "%s: No protocol set for this interface, assuming 802.2 (which is wrong!!)\n", sc->name);
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return htons(ETH_P_802_2);
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_tye out");
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}
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void lmc_proto_netif(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
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{
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lmc_trace(sc->lmc_device, "lmc_proto_netif in");
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switch(sc->if_type){
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case LMC_PPP:
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case LMC_NET:
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default:
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skb->dev->last_rx = jiffies;
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netif_rx(skb);
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break;
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case LMC_RAW:
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break;
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}
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lmc_trace(sc->lmc_device, "lmc_proto_netif out");
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}
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