blob: 94b4c208b013e1a0a936ed25afc46785f90ab5a0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001 /*
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/slab.h>
29#include <linux/interrupt.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include <linux/in.h>
31#include <linux/if_arp.h>
32#include <linux/netdevice.h>
33#include <linux/etherdevice.h>
34#include <linux/skbuff.h>
35#include <linux/inet.h>
36#include <linux/workqueue.h>
37#include <linux/proc_fs.h>
38#include <linux/bitops.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070039#include <asm/processor.h> /* Processor type for cache alignment. */
40#include <asm/io.h>
41#include <asm/dma.h>
42#include <linux/smp.h>
43
44#include "lmc.h"
45#include "lmc_var.h"
46#include "lmc_debug.h"
47#include "lmc_ioctl.h"
48#include "lmc_proto.h"
49
Linus Torvalds1da177e2005-04-16 15:20:36 -070050// attach
51void lmc_proto_attach(lmc_softc_t *sc) /*FOLD00*/
52{
53 lmc_trace(sc->lmc_device, "lmc_proto_attach in");
54 switch(sc->if_type){
55 case LMC_PPP:
56 {
57 struct net_device *dev = sc->lmc_device;
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 dev->do_ioctl = lmc_ioctl;
59 }
60 break;
61 case LMC_NET:
62 {
63 struct net_device *dev = sc->lmc_device;
64 /*
Krzysztof Hałasa64bef762008-07-02 20:46:21 +020065 * They set a few basics because they don't use HDLC
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 */
67 dev->flags |= IFF_POINTOPOINT;
Stephen Hemminger3b04ddd2007-10-09 01:40:57 -070068
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 dev->hard_header_len = 0;
70 dev->addr_len = 0;
71 }
72 case LMC_RAW: /* Setup the task queue, maybe we should notify someone? */
73 {
74 }
75 default:
76 break;
77 }
78 lmc_trace(sc->lmc_device, "lmc_proto_attach out");
79}
80
Krzysztof Hałasa64bef762008-07-02 20:46:21 +020081int lmc_proto_ioctl(lmc_softc_t *sc, struct ifreq *ifr, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -070082{
Krzysztof Hałasa64bef762008-07-02 20:46:21 +020083 lmc_trace(sc->lmc_device, "lmc_proto_ioctl");
84 if (sc->if_type == LMC_PPP)
85 return hdlc_ioctl(sc->lmc_device, ifr, cmd);
86 return -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -070087}
88
Krzysztof Hałasa64bef762008-07-02 20:46:21 +020089int lmc_proto_open(lmc_softc_t *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -070090{
Krzysztof Hałasa64bef762008-07-02 20:46:21 +020091 int ret = 0;
92
93 lmc_trace(sc->lmc_device, "lmc_proto_open in");
94
95 if (sc->if_type == LMC_PPP) {
96 ret = hdlc_open(sc->lmc_device);
97 if (ret < 0)
98 printk(KERN_WARNING "%s: HDLC open failed: %d\n",
99 sc->name, ret);
100 }
101
102 lmc_trace(sc->lmc_device, "lmc_proto_open out");
103 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104}
105
Krzysztof Hałasa64bef762008-07-02 20:46:21 +0200106void lmc_proto_close(lmc_softc_t *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107{
Krzysztof Hałasa64bef762008-07-02 20:46:21 +0200108 lmc_trace(sc->lmc_device, "lmc_proto_close in");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
Krzysztof Hałasa64bef762008-07-02 20:46:21 +0200110 if (sc->if_type == LMC_PPP)
111 hdlc_close(sc->lmc_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
Krzysztof Hałasa64bef762008-07-02 20:46:21 +0200113 lmc_trace(sc->lmc_device, "lmc_proto_close out");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114}
115
Al Viro904584012007-12-22 17:52:52 +0000116__be16 lmc_proto_type(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117{
118 lmc_trace(sc->lmc_device, "lmc_proto_type in");
119 switch(sc->if_type){
120 case LMC_PPP:
Krzysztof Hałasa64bef762008-07-02 20:46:21 +0200121 return hdlc_type_trans(skb, sc->lmc_device);
122 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123 case LMC_NET:
124 return htons(ETH_P_802_2);
125 break;
126 case LMC_RAW: /* Packet type for skbuff kind of useless */
127 return htons(ETH_P_802_2);
128 break;
129 default:
130 printk(KERN_WARNING "%s: No protocol set for this interface, assuming 802.2 (which is wrong!!)\n", sc->name);
131 return htons(ETH_P_802_2);
132 break;
133 }
134 lmc_trace(sc->lmc_device, "lmc_proto_tye out");
135
136}
137
138void lmc_proto_netif(lmc_softc_t *sc, struct sk_buff *skb) /*FOLD00*/
139{
140 lmc_trace(sc->lmc_device, "lmc_proto_netif in");
141 switch(sc->if_type){
142 case LMC_PPP:
143 case LMC_NET:
144 default:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 netif_rx(skb);
146 break;
147 case LMC_RAW:
148 break;
149 }
150 lmc_trace(sc->lmc_device, "lmc_proto_netif out");
151}