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/init.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/ptrace.h>
30#include <linux/slab.h>
31#include <linux/string.h>
32#include <linux/timer.h>
33#include <linux/netdevice.h>
34
35#include <pcmcia/cistpl.h>
36#include <pcmcia/cisreg.h>
37#include <pcmcia/ds.h>
38
39#include <linux/io.h>
40
41#include "airo.h"
42
43
44/*====================================================================*/
45
46MODULE_AUTHOR("Benjamin Reed");
47MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet "
48 "cards. This is the module that links the PCMCIA card "
49 "with the airo module.");
50MODULE_LICENSE("Dual BSD/GPL");
51MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340 PCMCIA cards");
52
53/*====================================================================*/
54
55static int airo_config(struct pcmcia_device *link);
56static void airo_release(struct pcmcia_device *link);
57
58static void airo_detach(struct pcmcia_device *p_dev);
59
60typedef struct local_info_t {
61 struct net_device *eth_dev;
62} local_info_t;
63
64static int airo_probe(struct pcmcia_device *p_dev)
65{
66 local_info_t *local;
67
68 dev_dbg(&p_dev->dev, "airo_attach()\n");
69
70 /* Allocate space for private device-specific data */
71 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
72 if (!local) {
73 printk(KERN_ERR "airo_cs: no memory for new device\n");
74 return -ENOMEM;
75 }
76 p_dev->priv = local;
77
78 return airo_config(p_dev);
79} /* airo_attach */
80
81static void airo_detach(struct pcmcia_device *link)
82{
83 dev_dbg(&link->dev, "airo_detach\n");
84
85 airo_release(link);
86
87 if (((local_info_t *)link->priv)->eth_dev) {
88 stop_airo_card(((local_info_t *)link->priv)->eth_dev, 0);
89 }
90 ((local_info_t *)link->priv)->eth_dev = NULL;
91
92 kfree(link->priv);
93} /* airo_detach */
94
95static int airo_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
96{
97 if (p_dev->config_index == 0)
98 return -EINVAL;
99
100 return pcmcia_request_io(p_dev);
101}
102
103
104static int airo_config(struct pcmcia_device *link)
105{
106 local_info_t *dev;
107 int ret;
108
109 dev = link->priv;
110
111 dev_dbg(&link->dev, "airo_config\n");
112
113 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
114 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
115
116 ret = pcmcia_loop_config(link, airo_cs_config_check, NULL);
117 if (ret)
118 goto failed;
119
120 if (!link->irq)
121 goto failed;
122
123 ret = pcmcia_enable_device(link);
124 if (ret)
125 goto failed;
126 ((local_info_t *)link->priv)->eth_dev =
127 init_airo_card(link->irq,
128 link->resource[0]->start, 1, &link->dev);
129 if (!((local_info_t *)link->priv)->eth_dev)
130 goto failed;
131
132 return 0;
133
134 failed:
135 airo_release(link);
136 return -ENODEV;
137} /* airo_config */
138
139static void airo_release(struct pcmcia_device *link)
140{
141 dev_dbg(&link->dev, "airo_release\n");
142 pcmcia_disable_device(link);
143}
144
145static int airo_suspend(struct pcmcia_device *link)
146{
147 local_info_t *local = link->priv;
148
149 netif_device_detach(local->eth_dev);
150
151 return 0;
152}
153
154static int airo_resume(struct pcmcia_device *link)
155{
156 local_info_t *local = link->priv;
157
158 if (link->open) {
159 reset_airo_card(local->eth_dev);
160 netif_device_attach(local->eth_dev);
161 }
162
163 return 0;
164}
165
166static const struct pcmcia_device_id airo_ids[] = {
167 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x000a),
168 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0005),
169 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0007),
170 PCMCIA_DEVICE_MANF_CARD(0x0105, 0x0007),
171 PCMCIA_DEVICE_NULL,
172};
173MODULE_DEVICE_TABLE(pcmcia, airo_ids);
174
175static struct pcmcia_driver airo_driver = {
176 .owner = THIS_MODULE,
177 .name = "airo_cs",
178 .probe = airo_probe,
179 .remove = airo_detach,
180 .id_table = airo_ids,
181 .suspend = airo_suspend,
182 .resume = airo_resume,
183};
184
185static int __init airo_cs_init(void)
186{
187 return pcmcia_register_driver(&airo_driver);
188}
189
190static void __exit airo_cs_cleanup(void)
191{
192 pcmcia_unregister_driver(&airo_driver);
193}
194
195/*
196 This program is free software; you can redistribute it and/or
197 modify it under the terms of the GNU General Public License
198 as published by the Free Software Foundation; either version 2
199 of the License, or (at your option) any later version.
200
201 This program is distributed in the hope that it will be useful,
202 but WITHOUT ANY WARRANTY; without even the implied warranty of
203 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
204 GNU General Public License for more details.
205
206 In addition:
207
208 Redistribution and use in source and binary forms, with or without
209 modification, are permitted provided that the following conditions
210 are met:
211
212 1. Redistributions of source code must retain the above copyright
213 notice, this list of conditions and the following disclaimer.
214 2. Redistributions in binary form must reproduce the above copyright
215 notice, this list of conditions and the following disclaimer in the
216 documentation and/or other materials provided with the distribution.
217 3. The name of the author may not be used to endorse or promote
218 products derived from this software without specific prior written
219 permission.
220
221 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
222 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
223 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
224 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
225 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
226 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
227 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
228 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
229 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
230 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
231 POSSIBILITY OF SUCH DAMAGE.
232*/
233
234module_init(airo_cs_init);
235module_exit(airo_cs_cleanup);