tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*======================================================================
2
3 Aironet driver for 4500 and 4800 series cards
4
5 This code is released under both the GPL version 2 and BSD licenses.
6 Either license may be used. The respective licenses are found at
7 the end of this file.
8
9 This code was developed by Benjamin Reed <breed@users.sourceforge.net>
10 including portions of which come from the Aironet PC4500
11 Developer's Reference Manual and used with permission. Copyright
12 (C) 1999 Benjamin Reed. All Rights Reserved. Permission to use
13 code in the Developer's manual was granted for this driver by
14 Aironet.
15
16 In addition this module was derived from dummy_cs.
17 The initial developer of dummy_cs is David A. Hinds
18 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
20
21======================================================================*/
22
23#ifdef __IN_PCMCIA_PACKAGE__
24#include <pcmcia/k_compat.h>
25#endif
26#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/ptrace.h>
29#include <linux/slab.h>
30#include <linux/string.h>
31#include <linux/timer.h>
32#include <linux/netdevice.h>
33
34#include <pcmcia/cistpl.h>
35#include <pcmcia/cisreg.h>
36#include <pcmcia/ds.h>
37
38#include <linux/io.h>
39
40#include "airo.h"
41
42
43/*====================================================================*/
44
45MODULE_AUTHOR("Benjamin Reed");
46MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet "
47 "cards. This is the module that links the PCMCIA card "
48 "with the airo module.");
49MODULE_LICENSE("Dual BSD/GPL");
50MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340 PCMCIA cards");
51
52/*====================================================================*/
53
54static int airo_config(struct pcmcia_device *link);
55static void airo_release(struct pcmcia_device *link);
56
57static void airo_detach(struct pcmcia_device *p_dev);
58
59typedef struct local_info_t {
60 struct net_device *eth_dev;
61} local_info_t;
62
63static int airo_probe(struct pcmcia_device *p_dev)
64{
65 local_info_t *local;
66
67 dev_dbg(&p_dev->dev, "airo_attach()\n");
68
69 /* Allocate space for private device-specific data */
70 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
71 if (!local)
72 return -ENOMEM;
73
74 p_dev->priv = local;
75
76 return airo_config(p_dev);
77} /* airo_attach */
78
79static void airo_detach(struct pcmcia_device *link)
80{
81 dev_dbg(&link->dev, "airo_detach\n");
82
83 airo_release(link);
84
85 if (((local_info_t *)link->priv)->eth_dev) {
86 stop_airo_card(((local_info_t *)link->priv)->eth_dev, 0);
87 }
88 ((local_info_t *)link->priv)->eth_dev = NULL;
89
90 kfree(link->priv);
91} /* airo_detach */
92
93static int airo_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
94{
95 if (p_dev->config_index == 0)
96 return -EINVAL;
97
98 return pcmcia_request_io(p_dev);
99}
100
101
102static int airo_config(struct pcmcia_device *link)
103{
104 local_info_t *dev;
105 int ret;
106
107 dev = link->priv;
108
109 dev_dbg(&link->dev, "airo_config\n");
110
111 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
112 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
113
114 ret = pcmcia_loop_config(link, airo_cs_config_check, NULL);
115 if (ret)
116 goto failed;
117
118 if (!link->irq)
119 goto failed;
120
121 ret = pcmcia_enable_device(link);
122 if (ret)
123 goto failed;
124 ((local_info_t *)link->priv)->eth_dev =
125 init_airo_card(link->irq,
126 link->resource[0]->start, 1, &link->dev);
127 if (!((local_info_t *)link->priv)->eth_dev)
128 goto failed;
129
130 return 0;
131
132 failed:
133 airo_release(link);
134 return -ENODEV;
135} /* airo_config */
136
137static void airo_release(struct pcmcia_device *link)
138{
139 dev_dbg(&link->dev, "airo_release\n");
140 pcmcia_disable_device(link);
141}
142
143static int airo_suspend(struct pcmcia_device *link)
144{
145 local_info_t *local = link->priv;
146
147 netif_device_detach(local->eth_dev);
148
149 return 0;
150}
151
152static int airo_resume(struct pcmcia_device *link)
153{
154 local_info_t *local = link->priv;
155
156 if (link->open) {
157 reset_airo_card(local->eth_dev);
158 netif_device_attach(local->eth_dev);
159 }
160
161 return 0;
162}
163
164static const struct pcmcia_device_id airo_ids[] = {
165 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x000a),
166 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0005),
167 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0007),
168 PCMCIA_DEVICE_MANF_CARD(0x0105, 0x0007),
169 PCMCIA_DEVICE_NULL,
170};
171MODULE_DEVICE_TABLE(pcmcia, airo_ids);
172
173static struct pcmcia_driver airo_driver = {
174 .owner = THIS_MODULE,
175 .name = "airo_cs",
176 .probe = airo_probe,
177 .remove = airo_detach,
178 .id_table = airo_ids,
179 .suspend = airo_suspend,
180 .resume = airo_resume,
181};
182module_pcmcia_driver(airo_driver);
183
184/*
185 This program is free software; you can redistribute it and/or
186 modify it under the terms of the GNU General Public License
187 as published by the Free Software Foundation; either version 2
188 of the License, or (at your option) any later version.
189
190 This program is distributed in the hope that it will be useful,
191 but WITHOUT ANY WARRANTY; without even the implied warranty of
192 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
193 GNU General Public License for more details.
194
195 In addition:
196
197 Redistribution and use in source and binary forms, with or without
198 modification, are permitted provided that the following conditions
199 are met:
200
201 1. Redistributions of source code must retain the above copyright
202 notice, this list of conditions and the following disclaimer.
203 2. Redistributions in binary form must reproduce the above copyright
204 notice, this list of conditions and the following disclaimer in the
205 documentation and/or other materials provided with the distribution.
206 3. The name of the author may not be used to endorse or promote
207 products derived from this software without specific prior written
208 permission.
209
210 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
211 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
212 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
213 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
214 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
215 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
216 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
217 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
218 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
219 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
220 POSSIBILITY OF SUCH DAMAGE.
221*/