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 
51 /*====================================================================*/
52 
53 static int airo_config(struct pcmcia_device *link);
54 static void airo_release(struct pcmcia_device *link);
55 
56 static void airo_detach(struct pcmcia_device *p_dev);
57 
58 struct local_info {
59 	struct net_device *eth_dev;
60 };
61 
62 static int airo_probe(struct pcmcia_device *p_dev)
63 {
64 	struct local_info *local;
65 
66 	dev_dbg(&p_dev->dev, "airo_attach()\n");
67 
68 	/* Allocate space for private device-specific data */
69 	local = kzalloc(sizeof(*local), GFP_KERNEL);
70 	if (!local)
71 		return -ENOMEM;
72 
73 	p_dev->priv = local;
74 
75 	return airo_config(p_dev);
76 } /* airo_attach */
77 
78 static void airo_detach(struct pcmcia_device *link)
79 {
80 	dev_dbg(&link->dev, "airo_detach\n");
81 
82 	airo_release(link);
83 
84 	if (((struct local_info *)link->priv)->eth_dev) {
85 		stop_airo_card(((struct local_info *)link->priv)->eth_dev,
86 			       0);
87 	}
88 	((struct local_info *)link->priv)->eth_dev = NULL;
89 
90 	kfree(link->priv);
91 } /* airo_detach */
92 
93 static 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 
102 static int airo_config(struct pcmcia_device *link)
103 {
104 	int ret;
105 
106 	dev_dbg(&link->dev, "airo_config\n");
107 
108 	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
109 		CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
110 
111 	ret = pcmcia_loop_config(link, airo_cs_config_check, NULL);
112 	if (ret)
113 		goto failed;
114 
115 	if (!link->irq)
116 		goto failed;
117 
118 	ret = pcmcia_enable_device(link);
119 	if (ret)
120 		goto failed;
121 	((struct local_info *)link->priv)->eth_dev =
122 		init_airo_card(link->irq,
123 			       link->resource[0]->start, 1, &link->dev);
124 	if (!((struct local_info *)link->priv)->eth_dev)
125 		goto failed;
126 
127 	return 0;
128 
129  failed:
130 	airo_release(link);
131 	return -ENODEV;
132 } /* airo_config */
133 
134 static void airo_release(struct pcmcia_device *link)
135 {
136 	dev_dbg(&link->dev, "airo_release\n");
137 	pcmcia_disable_device(link);
138 }
139 
140 static int airo_suspend(struct pcmcia_device *link)
141 {
142 	struct local_info *local = link->priv;
143 
144 	netif_device_detach(local->eth_dev);
145 
146 	return 0;
147 }
148 
149 static int airo_resume(struct pcmcia_device *link)
150 {
151 	struct local_info *local = link->priv;
152 
153 	if (link->open) {
154 		reset_airo_card(local->eth_dev);
155 		netif_device_attach(local->eth_dev);
156 	}
157 
158 	return 0;
159 }
160 
161 static const struct pcmcia_device_id airo_ids[] = {
162 	PCMCIA_DEVICE_MANF_CARD(0x015f, 0x000a),
163 	PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0005),
164 	PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0007),
165 	PCMCIA_DEVICE_MANF_CARD(0x0105, 0x0007),
166 	PCMCIA_DEVICE_NULL,
167 };
168 MODULE_DEVICE_TABLE(pcmcia, airo_ids);
169 
170 static struct pcmcia_driver airo_driver = {
171 	.owner		= THIS_MODULE,
172 	.name		= "airo_cs",
173 	.probe		= airo_probe,
174 	.remove		= airo_detach,
175 	.id_table       = airo_ids,
176 	.suspend	= airo_suspend,
177 	.resume		= airo_resume,
178 };
179 module_pcmcia_driver(airo_driver);
180 
181 /*
182     This program is free software; you can redistribute it and/or
183     modify it under the terms of the GNU General Public License
184     as published by the Free Software Foundation; either version 2
185     of the License, or (at your option) any later version.
186 
187     This program is distributed in the hope that it will be useful,
188     but WITHOUT ANY WARRANTY; without even the implied warranty of
189     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
190     GNU General Public License for more details.
191 
192     In addition:
193 
194     Redistribution and use in source and binary forms, with or without
195     modification, are permitted provided that the following conditions
196     are met:
197 
198     1. Redistributions of source code must retain the above copyright
199        notice, this list of conditions and the following disclaimer.
200     2. Redistributions in binary form must reproduce the above copyright
201        notice, this list of conditions and the following disclaimer in the
202        documentation and/or other materials provided with the distribution.
203     3. The name of the author may not be used to endorse or promote
204        products derived from this software without specific prior written
205        permission.
206 
207     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
208     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
209     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
210     ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
211     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
212     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
213     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
214     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
215     STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
216     IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
217     POSSIBILITY OF SUCH DAMAGE.
218 */
219