lmc_proto.c
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上传日期:2013-04-10
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文件大小:7k
- /*
- * 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/version.h>
- #include <linux/kernel.h>
- #include <linux/sched.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/pci.h>
- #include <asm/segment.h>
- #include <asm/smp.h>
- #include <linux/in.h>
- #include <linux/if_arp.h>
- #include <asm/processor.h> /* Processor type for cache alignment. */
- #include <asm/bitops.h>
- #include <asm/io.h>
- #include <asm/dma.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include <net/syncppp.h>
- #include <linux/inet.h>
- #include <linux/tqueue.h>
- #include <linux/proc_fs.h>
- #include "lmc_ver.h"
- #include "lmc.h"
- #include "lmc_var.h"
- #include "lmc_debug.h"
- #include "lmc_ioctl.h"
- #include "lmc_proto.h"
- //#include "lmc_proto_raw.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
- #if LINUX_VERSION_CODE < 0x20363
- #define SPPP_attach(x) sppp_attach((struct ppp_device *)(x)->lmc_device)
- #define SPPP_detach(x) sppp_detach((x)->lmc_device)
- #define SPPP_open(x) sppp_open((x)->lmc_device)
- #define SPPP_reopen(x) sppp_reopen((x)->lmc_device)
- #define SPPP_close(x) sppp_close((x)->lmc_device)
- #define SPPP_do_ioctl(x, y, z) sppp_do_ioctl((x)->lmc_device, (y), (z))
- #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
- #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:
-
- #if LINUX_VERSION_CODE >= 0x20363
- 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;
- #endif
- 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 = 0;
- 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: %dn", 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");
- }
- unsigned short 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:
- netif_rx(skb);
- break;
- case LMC_RAW:
- break;
- }
- lmc_trace(sc->lmc_device, "lmc_proto_netif out");
- }