diff options
Diffstat (limited to 'drivers/net/wan/lmc/lmc_proto.c')
| -rw-r--r-- | drivers/net/wan/lmc/lmc_proto.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/drivers/net/wan/lmc/lmc_proto.c b/drivers/net/wan/lmc/lmc_proto.c new file mode 100644 index 00000000000..74876c0073e --- /dev/null +++ b/drivers/net/wan/lmc/lmc_proto.c @@ -0,0 +1,249 @@ + /* + * 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/pci.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 = NULL; + 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"); +} + +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: + skb->dev->last_rx = jiffies; + netif_rx(skb); + break; + case LMC_RAW: + break; + } + lmc_trace(sc->lmc_device, "lmc_proto_netif out"); +} + |