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