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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
69typedef struct local_info_t {
70 struct net_device *eth_dev;
71} local_info_t;
72
73static int atmel_probe(struct pcmcia_device *p_dev)
74{
75 local_info_t *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_info_t), 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 local_info_t *dev;
121 int ret;
122 const struct pcmcia_device_id *did;
123
124 dev = link->priv;
125 did = dev_get_drvdata(&link->dev);
126
127 dev_dbg(&link->dev, "atmel_config\n");
128
129 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
130 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
131
132 if (pcmcia_loop_config(link, atmel_config_check, NULL))
133 goto failed;
134
135 if (!link->irq) {
136 dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
137 goto failed;
138 }
139
140 ret = pcmcia_enable_device(link);
141 if (ret)
142 goto failed;
143
144 ((local_info_t*)link->priv)->eth_dev =
145 init_atmel_card(link->irq,
146 link->resource[0]->start,
147 did ? did->driver_info : ATMEL_FW_TYPE_NONE,
148 &link->dev,
149 card_present,
150 link);
151 if (!((local_info_t*)link->priv)->eth_dev)
152 goto failed;
153
154
155 return 0;
156
157 failed:
158 atmel_release(link);
159 return -ENODEV;
160}
161
162static void atmel_release(struct pcmcia_device *link)
163{
164 struct net_device *dev = ((local_info_t*)link->priv)->eth_dev;
165
166 dev_dbg(&link->dev, "atmel_release\n");
167
168 if (dev)
169 stop_atmel_card(dev);
170 ((local_info_t*)link->priv)->eth_dev = NULL;
171
172 pcmcia_disable_device(link);
173}
174
175static int atmel_suspend(struct pcmcia_device *link)
176{
177 local_info_t *local = link->priv;
178
179 netif_device_detach(local->eth_dev);
180
181 return 0;
182}
183
184static int atmel_resume(struct pcmcia_device *link)
185{
186 local_info_t *local = link->priv;
187
188 atmel_open(local->eth_dev);
189 netif_device_attach(local->eth_dev);
190
191 return 0;
192}
193
194/*====================================================================*/
195/* We use the driver_info field to store the correct firmware type for a card. */
196
197#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \
198 .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \
199 PCMCIA_DEV_ID_MATCH_CARD_ID, \
200 .manf_id = (manf), \
201 .card_id = (card), \
202 .driver_info = (kernel_ulong_t)(info), }
203
204#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \
205 .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \
206 PCMCIA_DEV_ID_MATCH_PROD_ID2, \
207 .prod_id = { (v1), (v2), NULL, NULL }, \
208 .prod_id_hash = { (vh1), (vh2), 0, 0 }, \
209 .driver_info = (kernel_ulong_t)(info), }
210
211static const struct pcmcia_device_id atmel_ids[] = {
212 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM),
213 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM),
214 PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E),
215 PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502),
216 PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E),
217 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502),
218 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D),
219 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E),
220 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958),
221 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504),
222 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958),
223 PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502),
224 PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E),
225 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502),
226 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958),
227 PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502),
228 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D),
229 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502),
230 PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D),
231 PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D),
232 PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E),
233 PCMCIA_DEVICE_NULL
234};
235
236MODULE_DEVICE_TABLE(pcmcia, atmel_ids);
237
238static struct pcmcia_driver atmel_driver = {
239 .owner = THIS_MODULE,
240 .name = "atmel_cs",
241 .probe = atmel_probe,
242 .remove = atmel_detach,
243 .id_table = atmel_ids,
244 .suspend = atmel_suspend,
245 .resume = atmel_resume,
246};
247module_pcmcia_driver(atmel_driver);
248
249/*
250 This program is free software; you can redistribute it and/or
251 modify it under the terms of the GNU General Public License
252 as published by the Free Software Foundation; either version 2
253 of the License, or (at your option) any later version.
254
255 This program is distributed in the hope that it will be useful,
256 but WITHOUT ANY WARRANTY; without even the implied warranty of
257 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
258 GNU General Public License for more details.
259
260 In addition:
261
262 Redistribution and use in source and binary forms, with or without
263 modification, are permitted provided that the following conditions
264 are met:
265
266 1. Redistributions of source code must retain the above copyright
267 notice, this list of conditions and the following disclaimer.
268 2. Redistributions in binary form must reproduce the above copyright
269 notice, this list of conditions and the following disclaimer in the
270 documentation and/or other materials provided with the distribution.
271 3. The name of the author may not be used to endorse or promote
272 products derived from this software without specific prior written
273 permission.
274
275 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
276 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
277 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
278 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
279 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
280 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
281 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
282 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
283 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
284 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
285 POSSIBILITY OF SUCH DAMAGE.
286*/