summaryrefslogtreecommitdiff
path: root/drivers/net/wan/lmc/lmc_proto.c
blob: f600075e84a248c9afd481f6cd7e8453e5eeb8b4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
 /*
  * 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");
}