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1/*** -*- linux-c -*- **********************************************************
2
3 Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
4
5 Copyright 2000-2001 ATMEL Corporation.
6 Copyright 2003 Simon Kelley.
7
8 This code was developed from version 2.1.1 of the Atmel drivers,
9 released by Atmel corp. under the GPL in December 2002. It also
10 includes code from the Linux aironet drivers (C) Benjamin Reed,
11 and the Linux PCMCIA package, (C) David Hinds.
12
13 For all queries about this code, please contact the current author,
14 Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
15
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
18 the Free Software Foundation; either version 2 of the License, or
19 (at your option) any later version.
20
21 This software is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
25
26 You should have received a copy of the GNU General Public License
27 along with Atmel wireless lan drivers; if not, see
28 <http://www.gnu.org/licenses/>.
29
30******************************************************************************/
31
32#ifdef __IN_PCMCIA_PACKAGE__
33#include <pcmcia/k_compat.h>
34#endif
35#include <linux/kernel.h>
36#include <linux/module.h>
37#include <linux/ptrace.h>
38#include <linux/slab.h>
39#include <linux/string.h>
40#include <linux/netdevice.h>
41#include <linux/moduleparam.h>
42#include <linux/device.h>
43
44#include <pcmcia/cistpl.h>
45#include <pcmcia/cisreg.h>
46#include <pcmcia/ds.h>
47#include <pcmcia/ciscode.h>
48
49#include <asm/io.h>
50#include <linux/wireless.h>
51
52#include "atmel.h"
53
54
55/*====================================================================*/
56
57MODULE_AUTHOR("Simon Kelley");
58MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
59MODULE_LICENSE("GPL");
60MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards");
61
62/*====================================================================*/
63
64static int atmel_config(struct pcmcia_device *link);
65static void atmel_release(struct pcmcia_device *link);
66
67static void atmel_detach(struct pcmcia_device *p_dev);
68
69struct local_info {
70 struct net_device *eth_dev;
71};
72
73static int atmel_probe(struct pcmcia_device *p_dev)
74{
75 struct local_info *local;
76
77 dev_dbg(&p_dev->dev, "atmel_attach()\n");
78
79 /* Allocate space for private device-specific data */
80 local = kzalloc(sizeof(*local), GFP_KERNEL);
81 if (!local)
82 return -ENOMEM;
83
84 p_dev->priv = local;
85
86 return atmel_config(p_dev);
87} /* atmel_attach */
88
89static void atmel_detach(struct pcmcia_device *link)
90{
91 dev_dbg(&link->dev, "atmel_detach\n");
92
93 atmel_release(link);
94
95 kfree(link->priv);
96}
97
98/* Call-back function to interrogate PCMCIA-specific information
99 about the current existence of the card */
100static int card_present(void *arg)
101{
102 struct pcmcia_device *link = (struct pcmcia_device *)arg;
103
104 if (pcmcia_dev_present(link))
105 return 1;
106
107 return 0;
108}
109
110static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data)
111{
112 if (p_dev->config_index == 0)
113 return -EINVAL;
114
115 return pcmcia_request_io(p_dev);
116}
117
118static int atmel_config(struct pcmcia_device *link)
119{
120 int ret;
121 const struct pcmcia_device_id *did;
122
123 did = dev_get_drvdata(&link->dev);
124
125 dev_dbg(&link->dev, "atmel_config\n");
126
127 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
128 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
129
130 if (pcmcia_loop_config(link, atmel_config_check, NULL))
131 goto failed;
132
133 if (!link->irq) {
134 dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
135 goto failed;
136 }
137
138 ret = pcmcia_enable_device(link);
139 if (ret)
140 goto failed;
141
142 ((struct local_info *)link->priv)->eth_dev =
143 init_atmel_card(link->irq,
144 link->resource[0]->start,
145 did ? did->driver_info : ATMEL_FW_TYPE_NONE,
146 &link->dev,
147 card_present,
148 link);
149 if (!((struct local_info *)link->priv)->eth_dev)
150 goto failed;
151
152
153 return 0;
154
155 failed:
156 atmel_release(link);
157 return -ENODEV;
158}
159
160static void atmel_release(struct pcmcia_device *link)
161{
162 struct net_device *dev = ((struct local_info *)link->priv)->eth_dev;
163
164 dev_dbg(&link->dev, "atmel_release\n");
165
166 if (dev)
167 stop_atmel_card(dev);
168 ((struct local_info *)link->priv)->eth_dev = NULL;
169
170 pcmcia_disable_device(link);
171}
172
173static int atmel_suspend(struct pcmcia_device *link)
174{
175 struct local_info *local = link->priv;
176
177 netif_device_detach(local->eth_dev);
178
179 return 0;
180}
181
182static int atmel_resume(struct pcmcia_device *link)
183{
184 struct local_info *local = link->priv;
185
186 atmel_open(local->eth_dev);
187 netif_device_attach(local->eth_dev);
188
189 return 0;
190}
191
192/*====================================================================*/
193/* We use the driver_info field to store the correct firmware type for a card. */
194
195#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \
196 .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \
197 PCMCIA_DEV_ID_MATCH_CARD_ID, \
198 .manf_id = (manf), \
199 .card_id = (card), \
200 .driver_info = (kernel_ulong_t)(info), }
201
202#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \
203 .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \
204 PCMCIA_DEV_ID_MATCH_PROD_ID2, \
205 .prod_id = { (v1), (v2), NULL, NULL }, \
206 .prod_id_hash = { (vh1), (vh2), 0, 0 }, \
207 .driver_info = (kernel_ulong_t)(info), }
208
209static const struct pcmcia_device_id atmel_ids[] = {
210 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM),
211 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM),
212 PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E),
213 PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502),
214 PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E),
215 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502),
216 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D),
217 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E),
218 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958),
219 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504),
220 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958),
221 PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502),
222 PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E),
223 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502),
224 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958),
225 PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502),
226 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D),
227 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502),
228 PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D),
229 PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D),
230 PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E),
231 PCMCIA_DEVICE_NULL
232};
233
234MODULE_DEVICE_TABLE(pcmcia, atmel_ids);
235
236static struct pcmcia_driver atmel_driver = {
237 .owner = THIS_MODULE,
238 .name = "atmel_cs",
239 .probe = atmel_probe,
240 .remove = atmel_detach,
241 .id_table = atmel_ids,
242 .suspend = atmel_suspend,
243 .resume = atmel_resume,
244};
245module_pcmcia_driver(atmel_driver);
246
247/*
248 This program is free software; you can redistribute it and/or
249 modify it under the terms of the GNU General Public License
250 as published by the Free Software Foundation; either version 2
251 of the License, or (at your option) any later version.
252
253 This program is distributed in the hope that it will be useful,
254 but WITHOUT ANY WARRANTY; without even the implied warranty of
255 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
256 GNU General Public License for more details.
257
258 In addition:
259
260 Redistribution and use in source and binary forms, with or without
261 modification, are permitted provided that the following conditions
262 are met:
263
264 1. Redistributions of source code must retain the above copyright
265 notice, this list of conditions and the following disclaimer.
266 2. Redistributions in binary form must reproduce the above copyright
267 notice, this list of conditions and the following disclaimer in the
268 documentation and/or other materials provided with the distribution.
269 3. The name of the author may not be used to endorse or promote
270 products derived from this software without specific prior written
271 permission.
272
273 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
274 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
275 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
276 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
277 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
278 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
279 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
280 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
281 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
282 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
283 POSSIBILITY OF SUCH DAMAGE.
284*/