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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, write to the Free Software
28 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29
30******************************************************************************/
31
32#ifdef __IN_PCMCIA_PACKAGE__
33#include <pcmcia/k_compat.h>
34#endif
35#include <linux/init.h>
36#include <linux/kernel.h>
37#include <linux/module.h>
38#include <linux/ptrace.h>
39#include <linux/slab.h>
40#include <linux/string.h>
41#include <linux/netdevice.h>
42#include <linux/moduleparam.h>
43#include <linux/device.h>
44
45#include <pcmcia/cistpl.h>
46#include <pcmcia/cisreg.h>
47#include <pcmcia/ds.h>
48#include <pcmcia/ciscode.h>
49
50#include <asm/io.h>
51#include <linux/wireless.h>
52
53#include "atmel.h"
54
55
56/*====================================================================*/
57
58MODULE_AUTHOR("Simon Kelley");
59MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
60MODULE_LICENSE("GPL");
61MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards");
62
63/*====================================================================*/
64
65static int atmel_config(struct pcmcia_device *link);
66static void atmel_release(struct pcmcia_device *link);
67
68static void atmel_detach(struct pcmcia_device *p_dev);
69
70typedef struct local_info_t {
71 struct net_device *eth_dev;
72} local_info_t;
73
74static int atmel_probe(struct pcmcia_device *p_dev)
75{
76 local_info_t *local;
77
78 dev_dbg(&p_dev->dev, "atmel_attach()\n");
79
80 /* Allocate space for private device-specific data */
81 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
82 if (!local)
83 return -ENOMEM;
84
85 p_dev->priv = local;
86
87 return atmel_config(p_dev);
88} /* atmel_attach */
89
90static void atmel_detach(struct pcmcia_device *link)
91{
92 dev_dbg(&link->dev, "atmel_detach\n");
93
94 atmel_release(link);
95
96 kfree(link->priv);
97}
98
99/* Call-back function to interrogate PCMCIA-specific information
100 about the current existence of the card */
101static int card_present(void *arg)
102{
103 struct pcmcia_device *link = (struct pcmcia_device *)arg;
104
105 if (pcmcia_dev_present(link))
106 return 1;
107
108 return 0;
109}
110
111static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data)
112{
113 if (p_dev->config_index == 0)
114 return -EINVAL;
115
116 return pcmcia_request_io(p_dev);
117}
118
119static int atmel_config(struct pcmcia_device *link)
120{
121 local_info_t *dev;
122 int ret;
123 const struct pcmcia_device_id *did;
124
125 dev = link->priv;
126 did = dev_get_drvdata(&link->dev);
127
128 dev_dbg(&link->dev, "atmel_config\n");
129
130 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
131 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
132
133 if (pcmcia_loop_config(link, atmel_config_check, NULL))
134 goto failed;
135
136 if (!link->irq) {
137 dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
138 goto failed;
139 }
140
141 ret = pcmcia_enable_device(link);
142 if (ret)
143 goto failed;
144
145 ((local_info_t*)link->priv)->eth_dev =
146 init_atmel_card(link->irq,
147 link->resource[0]->start,
148 did ? did->driver_info : ATMEL_FW_TYPE_NONE,
149 &link->dev,
150 card_present,
151 link);
152 if (!((local_info_t*)link->priv)->eth_dev)
153 goto failed;
154
155
156 return 0;
157
158 failed:
159 atmel_release(link);
160 return -ENODEV;
161}
162
163static void atmel_release(struct pcmcia_device *link)
164{
165 struct net_device *dev = ((local_info_t*)link->priv)->eth_dev;
166
167 dev_dbg(&link->dev, "atmel_release\n");
168
169 if (dev)
170 stop_atmel_card(dev);
171 ((local_info_t*)link->priv)->eth_dev = NULL;
172
173 pcmcia_disable_device(link);
174}
175
176static int atmel_suspend(struct pcmcia_device *link)
177{
178 local_info_t *local = link->priv;
179
180 netif_device_detach(local->eth_dev);
181
182 return 0;
183}
184
185static int atmel_resume(struct pcmcia_device *link)
186{
187 local_info_t *local = link->priv;
188
189 atmel_open(local->eth_dev);
190 netif_device_attach(local->eth_dev);
191
192 return 0;
193}
194
195/*====================================================================*/
196/* We use the driver_info field to store the correct firmware type for a card. */
197
198#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \
199 .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \
200 PCMCIA_DEV_ID_MATCH_CARD_ID, \
201 .manf_id = (manf), \
202 .card_id = (card), \
203 .driver_info = (kernel_ulong_t)(info), }
204
205#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \
206 .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \
207 PCMCIA_DEV_ID_MATCH_PROD_ID2, \
208 .prod_id = { (v1), (v2), NULL, NULL }, \
209 .prod_id_hash = { (vh1), (vh2), 0, 0 }, \
210 .driver_info = (kernel_ulong_t)(info), }
211
212static const struct pcmcia_device_id atmel_ids[] = {
213 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM),
214 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM),
215 PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E),
216 PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502),
217 PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E),
218 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502),
219 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D),
220 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E),
221 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958),
222 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504),
223 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958),
224 PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502),
225 PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E),
226 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502),
227 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958),
228 PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502),
229 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D),
230 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502),
231 PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D),
232 PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D),
233 PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E),
234 PCMCIA_DEVICE_NULL
235};
236
237MODULE_DEVICE_TABLE(pcmcia, atmel_ids);
238
239static struct pcmcia_driver atmel_driver = {
240 .owner = THIS_MODULE,
241 .name = "atmel_cs",
242 .probe = atmel_probe,
243 .remove = atmel_detach,
244 .id_table = atmel_ids,
245 .suspend = atmel_suspend,
246 .resume = atmel_resume,
247};
248module_pcmcia_driver(atmel_driver);
249
250/*
251 This program is free software; you can redistribute it and/or
252 modify it under the terms of the GNU General Public License
253 as published by the Free Software Foundation; either version 2
254 of the License, or (at your option) any later version.
255
256 This program is distributed in the hope that it will be useful,
257 but WITHOUT ANY WARRANTY; without even the implied warranty of
258 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
259 GNU General Public License for more details.
260
261 In addition:
262
263 Redistribution and use in source and binary forms, with or without
264 modification, are permitted provided that the following conditions
265 are met:
266
267 1. Redistributions of source code must retain the above copyright
268 notice, this list of conditions and the following disclaimer.
269 2. Redistributions in binary form must reproduce the above copyright
270 notice, this list of conditions and the following disclaimer in the
271 documentation and/or other materials provided with the distribution.
272 3. The name of the author may not be used to endorse or promote
273 products derived from this software without specific prior written
274 permission.
275
276 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
277 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
278 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
279 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
280 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
281 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
282 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
283 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
284 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
285 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
286 POSSIBILITY OF SUCH DAMAGE.
287*/