1 /*
2 * Copyright (c) 1997-2000 LAN Media Corporation (LMC)
3 * All rights reserved. www.lanmedia.com
4 *
5 * This code is written by:
6 * Andrew Stanley-Jones (asj@cban.com)
7 * Rob Braun (bbraun@vix.com),
8 * Michael Graff (explorer@vix.com) and
9 * Matt Thomas (matt@3am-software.com).
10 *
11 * With Help By:
12 * David Boggs
13 * Ron Crane
14 * Allan Cox
15 *
16 * This software may be used and distributed according to the terms
17 * of the GNU General Public License version 2, incorporated herein by reference.
18 *
19 * Driver for the LanMedia LMC5200, LMC5245, LMC1000, LMC1200 cards.
20 */
21
22 #include <linux/kernel.h>
23 #include <linux/string.h>
24 #include <linux/timer.h>
25 #include <linux/ptrace.h>
26 #include <linux/errno.h>
27 #include <linux/ioport.h>
28 #include <linux/interrupt.h>
29 #include <linux/in.h>
30 #include <linux/if_arp.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/skbuff.h>
34 #include <linux/inet.h>
35 #include <linux/workqueue.h>
36 #include <linux/proc_fs.h>
37 #include <linux/bitops.h>
38 #include <asm/processor.h> /* Processor type for cache alignment. */
39 #include <asm/io.h>
40 #include <asm/dma.h>
41 #include <linux/smp.h>
42
43 #include "lmc.h"
44 #include "lmc_var.h"
45 #include "lmc_debug.h"
46 #include "lmc_ioctl.h"
47 #include "lmc_proto.h"
48
49 // attach
lmc_proto_attach(lmc_softc_t * sc)50 void lmc_proto_attach(lmc_softc_t *sc) /*FOLD00*/
51 {
52 lmc_trace(sc->lmc_device, "lmc_proto_attach in");
53 if (sc->if_type == LMC_NET) {
54 struct net_device *dev = sc->lmc_device;
55 /*
56 * They set a few basics because they don't use HDLC
57 */
58 dev->flags |= IFF_POINTOPOINT;
59 dev->hard_header_len = 0;
60 dev->addr_len = 0;
61 }
62 lmc_trace(sc->lmc_device, "lmc_proto_attach out");
63 }
64
lmc_proto_ioctl(lmc_softc_t * sc,struct ifreq * ifr,int cmd)65 int lmc_proto_ioctl(lmc_softc_t *sc, struct ifreq *ifr, int cmd)
66 {
67 lmc_trace(sc->lmc_device, "lmc_proto_ioctl");
68 if (sc->if_type == LMC_PPP)
69 return hdlc_ioctl(sc->lmc_device, ifr, cmd);
70 return -EOPNOTSUPP;
71 }
72
lmc_proto_open(lmc_softc_t * sc)73 int lmc_proto_open(lmc_softc_t *sc)
74 {
75 int ret = 0;
76
77 lmc_trace(sc->lmc_device, "lmc_proto_open in");
78
79 if (sc->if_type == LMC_PPP) {
80 ret = hdlc_open(sc->lmc_device);
81 if (ret < 0)
82 printk(KERN_WARNING "%s: HDLC open failed: %d\n",
83 sc->name, ret);
84 }
85
86 lmc_trace(sc->lmc_device, "lmc_proto_open out");
87 return ret;
88 }
89
lmc_proto_close(lmc_softc_t * sc)90 void lmc_proto_close(lmc_softc_t *sc)
91 {
92 lmc_trace(sc->lmc_device, "lmc_proto_close in");
93
94 if (sc->if_type == LMC_PPP)
95 hdlc_close(sc->lmc_device);
96
97 lmc_trace(sc->lmc_device, "lmc_proto_close out");
98 }
99
lmc_proto_type(lmc_softc_t * sc,struct sk_buff * skb)100 __be16 lmc_proto_type(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
101 {
102 lmc_trace(sc->lmc_device, "lmc_proto_type in");
103 switch(sc->if_type){
104 case LMC_PPP:
105 return hdlc_type_trans(skb, sc->lmc_device);
106 break;
107 case LMC_NET:
108 return htons(ETH_P_802_2);
109 break;
110 case LMC_RAW: /* Packet type for skbuff kind of useless */
111 return htons(ETH_P_802_2);
112 break;
113 default:
114 printk(KERN_WARNING "%s: No protocol set for this interface, assuming 802.2 (which is wrong!!)\n", sc->name);
115 return htons(ETH_P_802_2);
116 break;
117 }
118 lmc_trace(sc->lmc_device, "lmc_proto_tye out");
119
120 }
121
lmc_proto_netif(lmc_softc_t * sc,struct sk_buff * skb)122 void lmc_proto_netif(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
123 {
124 lmc_trace(sc->lmc_device, "lmc_proto_netif in");
125 switch(sc->if_type){
126 case LMC_PPP:
127 case LMC_NET:
128 default:
129 netif_rx(skb);
130 break;
131 case LMC_RAW:
132 break;
133 }
134 lmc_trace(sc->lmc_device, "lmc_proto_netif out");
135 }
136