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		printk(KERN_ERR "atmel_cs: no memory for new device\n");
84		return -ENOMEM;
85	}
86	p_dev->priv = local;
87
88	return atmel_config(p_dev);
89} /* atmel_attach */
90
91static void atmel_detach(struct pcmcia_device *link)
92{
93	dev_dbg(&link->dev, "atmel_detach\n");
94
95	atmel_release(link);
96
97	kfree(link->priv);
98}
99
100/* Call-back function to interrogate PCMCIA-specific information
101   about the current existence of the card */
102static int card_present(void *arg)
103{
104	struct pcmcia_device *link = (struct pcmcia_device *)arg;
105
106	if (pcmcia_dev_present(link))
107		return 1;
108
109	return 0;
110}
111
112static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data)
113{
114	if (p_dev->config_index == 0)
115		return -EINVAL;
116
117	return pcmcia_request_io(p_dev);
118}
119
120static int atmel_config(struct pcmcia_device *link)
121{
122	local_info_t *dev;
123	int ret;
124	const struct pcmcia_device_id *did;
125
126	dev = link->priv;
127	did = dev_get_drvdata(&link->dev);
128
129	dev_dbg(&link->dev, "atmel_config\n");
130
131	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
132		CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
133
134	if (pcmcia_loop_config(link, atmel_config_check, NULL))
135		goto failed;
136
137	if (!link->irq) {
138		dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
139		goto failed;
140	}
141
142	ret = pcmcia_enable_device(link);
143	if (ret)
144		goto failed;
145
146	((local_info_t*)link->priv)->eth_dev =
147		init_atmel_card(link->irq,
148				link->resource[0]->start,
149				did ? did->driver_info : ATMEL_FW_TYPE_NONE,
150				&link->dev,
151				card_present,
152				link);
153	if (!((local_info_t*)link->priv)->eth_dev)
154			goto failed;
155
156
157	return 0;
158
159 failed:
160	atmel_release(link);
161	return -ENODEV;
162}
163
164static void atmel_release(struct pcmcia_device *link)
165{
166	struct net_device *dev = ((local_info_t*)link->priv)->eth_dev;
167
168	dev_dbg(&link->dev, "atmel_release\n");
169
170	if (dev)
171		stop_atmel_card(dev);
172	((local_info_t*)link->priv)->eth_dev = NULL;
173
174	pcmcia_disable_device(link);
175}
176
177static int atmel_suspend(struct pcmcia_device *link)
178{
179	local_info_t *local = link->priv;
180
181	netif_device_detach(local->eth_dev);
182
183	return 0;
184}
185
186static int atmel_resume(struct pcmcia_device *link)
187{
188	local_info_t *local = link->priv;
189
190	atmel_open(local->eth_dev);
191	netif_device_attach(local->eth_dev);
192
193	return 0;
194}
195
196/*====================================================================*/
197/* We use the driver_info field to store the correct firmware type for a card. */
198
199#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \
200	.match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \
201			PCMCIA_DEV_ID_MATCH_CARD_ID, \
202	.manf_id = (manf), \
203	.card_id = (card), \
204        .driver_info = (kernel_ulong_t)(info), }
205
206#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \
207	.match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \
208			PCMCIA_DEV_ID_MATCH_PROD_ID2, \
209	.prod_id = { (v1), (v2), NULL, NULL }, \
210	.prod_id_hash = { (vh1), (vh2), 0, 0 }, \
211        .driver_info = (kernel_ulong_t)(info), }
212
213static const struct pcmcia_device_id atmel_ids[] = {
214	PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM),
215	PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM),
216	PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E),
217	PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502),
218	PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E),
219	PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502),
220	PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D),
221	PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E),
222	PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958),
223	PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504),
224	PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958),
225	PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502),
226	PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E),
227	PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502),
228	PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958),
229	PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502),
230	PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D),
231	PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502),
232	PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D),
233	PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D),
234	PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E),
235	PCMCIA_DEVICE_NULL
236};
237
238MODULE_DEVICE_TABLE(pcmcia, atmel_ids);
239
240static struct pcmcia_driver atmel_driver = {
241	.owner		= THIS_MODULE,
242	.name		= "atmel_cs",
243	.probe          = atmel_probe,
244	.remove		= atmel_detach,
245	.id_table	= atmel_ids,
246	.suspend	= atmel_suspend,
247	.resume		= atmel_resume,
248};
249
250static int __init atmel_cs_init(void)
251{
252        return pcmcia_register_driver(&atmel_driver);
253}
254
255static void __exit atmel_cs_cleanup(void)
256{
257        pcmcia_unregister_driver(&atmel_driver);
258}
259
260/*
261    This program is free software; you can redistribute it and/or
262    modify it under the terms of the GNU General Public License
263    as published by the Free Software Foundation; either version 2
264    of the License, or (at your option) any later version.
265
266    This program is distributed in the hope that it will be useful,
267    but WITHOUT ANY WARRANTY; without even the implied warranty of
268    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
269    GNU General Public License for more details.
270
271    In addition:
272
273    Redistribution and use in source and binary forms, with or without
274    modification, are permitted provided that the following conditions
275    are met:
276
277    1. Redistributions of source code must retain the above copyright
278       notice, this list of conditions and the following disclaimer.
279    2. Redistributions in binary form must reproduce the above copyright
280       notice, this list of conditions and the following disclaimer in the
281       documentation and/or other materials provided with the distribution.
282    3. The name of the author may not be used to endorse or promote
283       products derived from this software without specific prior written
284       permission.
285
286    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
287    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
288    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
289    ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
290    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
291    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
292    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
293    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
294    STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
295    IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
296    POSSIBILITY OF SUCH DAMAGE.
297*/
298
299module_init(atmel_cs_init);
300module_exit(atmel_cs_cleanup);
301