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 | |
57 | MODULE_AUTHOR("Simon Kelley" ); |
58 | MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards." ); |
59 | MODULE_LICENSE("GPL" ); |
60 | |
61 | /*====================================================================*/ |
62 | |
63 | static int atmel_config(struct pcmcia_device *link); |
64 | static void atmel_release(struct pcmcia_device *link); |
65 | |
66 | static void atmel_detach(struct pcmcia_device *p_dev); |
67 | |
68 | struct local_info { |
69 | struct net_device *eth_dev; |
70 | }; |
71 | |
72 | static int atmel_probe(struct pcmcia_device *p_dev) |
73 | { |
74 | struct local_info *local; |
75 | int ret; |
76 | |
77 | dev_dbg(&p_dev->dev, "atmel_attach()\n" ); |
78 | |
79 | /* Allocate space for private device-specific data */ |
80 | local = kzalloc(size: sizeof(*local), GFP_KERNEL); |
81 | if (!local) |
82 | return -ENOMEM; |
83 | |
84 | p_dev->priv = local; |
85 | |
86 | ret = atmel_config(link: p_dev); |
87 | if (ret) |
88 | goto err_free_priv; |
89 | |
90 | return 0; |
91 | |
92 | err_free_priv: |
93 | kfree(objp: p_dev->priv); |
94 | return ret; |
95 | } |
96 | |
97 | static void atmel_detach(struct pcmcia_device *link) |
98 | { |
99 | dev_dbg(&link->dev, "atmel_detach\n" ); |
100 | |
101 | atmel_release(link); |
102 | |
103 | kfree(objp: link->priv); |
104 | } |
105 | |
106 | /* Call-back function to interrogate PCMCIA-specific information |
107 | about the current existence of the card */ |
108 | static int card_present(void *arg) |
109 | { |
110 | struct pcmcia_device *link = (struct pcmcia_device *)arg; |
111 | |
112 | if (pcmcia_dev_present(p_dev: link)) |
113 | return 1; |
114 | |
115 | return 0; |
116 | } |
117 | |
118 | static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data) |
119 | { |
120 | if (p_dev->config_index == 0) |
121 | return -EINVAL; |
122 | |
123 | return pcmcia_request_io(p_dev); |
124 | } |
125 | |
126 | static int atmel_config(struct pcmcia_device *link) |
127 | { |
128 | int ret; |
129 | const struct pcmcia_device_id *did; |
130 | |
131 | did = dev_get_drvdata(dev: &link->dev); |
132 | |
133 | dev_dbg(&link->dev, "atmel_config\n" ); |
134 | |
135 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | |
136 | CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; |
137 | |
138 | if (pcmcia_loop_config(p_dev: link, conf_check: atmel_config_check, NULL)) |
139 | goto failed; |
140 | |
141 | if (!link->irq) { |
142 | dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config." ); |
143 | goto failed; |
144 | } |
145 | |
146 | ret = pcmcia_enable_device(p_dev: link); |
147 | if (ret) |
148 | goto failed; |
149 | |
150 | ((struct local_info *)link->priv)->eth_dev = |
151 | init_atmel_card(link->irq, |
152 | link->resource[0]->start, |
153 | did ? did->driver_info : ATMEL_FW_TYPE_NONE, |
154 | &link->dev, |
155 | present_func: card_present, |
156 | link); |
157 | if (!((struct local_info *)link->priv)->eth_dev) |
158 | goto failed; |
159 | |
160 | |
161 | return 0; |
162 | |
163 | failed: |
164 | atmel_release(link); |
165 | return -ENODEV; |
166 | } |
167 | |
168 | static void atmel_release(struct pcmcia_device *link) |
169 | { |
170 | struct net_device *dev = ((struct local_info *)link->priv)->eth_dev; |
171 | |
172 | dev_dbg(&link->dev, "atmel_release\n" ); |
173 | |
174 | if (dev) |
175 | stop_atmel_card(dev); |
176 | ((struct local_info *)link->priv)->eth_dev = NULL; |
177 | |
178 | pcmcia_disable_device(p_dev: link); |
179 | } |
180 | |
181 | static int atmel_suspend(struct pcmcia_device *link) |
182 | { |
183 | struct local_info *local = link->priv; |
184 | |
185 | netif_device_detach(dev: local->eth_dev); |
186 | |
187 | return 0; |
188 | } |
189 | |
190 | static int atmel_resume(struct pcmcia_device *link) |
191 | { |
192 | struct local_info *local = link->priv; |
193 | |
194 | atmel_open(local->eth_dev); |
195 | netif_device_attach(dev: local->eth_dev); |
196 | |
197 | return 0; |
198 | } |
199 | |
200 | /*====================================================================*/ |
201 | /* We use the driver_info field to store the correct firmware type for a card. */ |
202 | |
203 | #define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \ |
204 | .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \ |
205 | PCMCIA_DEV_ID_MATCH_CARD_ID, \ |
206 | .manf_id = (manf), \ |
207 | .card_id = (card), \ |
208 | .driver_info = (kernel_ulong_t)(info), } |
209 | |
210 | #define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \ |
211 | .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \ |
212 | PCMCIA_DEV_ID_MATCH_PROD_ID2, \ |
213 | .prod_id = { (v1), (v2), NULL, NULL }, \ |
214 | .prod_id_hash = { (vh1), (vh2), 0, 0 }, \ |
215 | .driver_info = (kernel_ulong_t)(info), } |
216 | |
217 | static const struct pcmcia_device_id atmel_ids[] = { |
218 | PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM), |
219 | PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM), |
220 | PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E), |
221 | PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502), |
222 | PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE" , "11WP611AL-E" , 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E), |
223 | PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL" , "AT76C502AR" , 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502), |
224 | PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL" , "AT76C502AR_D" , 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D), |
225 | PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL" , "AT76C502AR_E" , 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E), |
226 | PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL" , "AT76C504_R" , 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958), |
227 | PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL" , "AT76C504" , 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504), |
228 | PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL" , "AT76C504A" , 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958), |
229 | PCMCIA_DEVICE_PROD_ID12_INFO("BT" , "Voyager 1020 Laptop Adapter" , 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502), |
230 | PCMCIA_DEVICE_PROD_ID12_INFO("CNet" , "CNWLC 11Mbps Wireless PC Card V-5" , 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E), |
231 | PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b" , "Wireless LAN PC Card" , 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502), |
232 | PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b" , "Wireless LAN Card S" , 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958), |
233 | PCMCIA_DEVICE_PROD_ID12_INFO("OEM" , "11Mbps Wireless LAN PC Card V-3" , 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502), |
234 | PCMCIA_DEVICE_PROD_ID12_INFO("SMC" , "2632W" , 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D), |
235 | PCMCIA_DEVICE_PROD_ID12_INFO("SMC" , "2632W-V2" , 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502), |
236 | PCMCIA_DEVICE_PROD_ID12_INFO("Wireless" , "PC_CARD" , 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D), |
237 | PCMCIA_DEVICE_PROD_ID12_INFO("WLAN" , "802.11b PC CARD" , 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D), |
238 | PCMCIA_DEVICE_PROD_ID12_INFO("LG" , "LW2100N" , 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E), |
239 | PCMCIA_DEVICE_NULL |
240 | }; |
241 | |
242 | MODULE_DEVICE_TABLE(pcmcia, atmel_ids); |
243 | |
244 | static struct pcmcia_driver atmel_driver = { |
245 | .owner = THIS_MODULE, |
246 | .name = "atmel_cs" , |
247 | .probe = atmel_probe, |
248 | .remove = atmel_detach, |
249 | .id_table = atmel_ids, |
250 | .suspend = atmel_suspend, |
251 | .resume = atmel_resume, |
252 | }; |
253 | module_pcmcia_driver(atmel_driver); |
254 | |
255 | /* |
256 | This program is free software; you can redistribute it and/or |
257 | modify it under the terms of the GNU General Public License |
258 | as published by the Free Software Foundation; either version 2 |
259 | of the License, or (at your option) any later version. |
260 | |
261 | This program is distributed in the hope that it will be useful, |
262 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
263 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
264 | GNU General Public License for more details. |
265 | |
266 | In addition: |
267 | |
268 | Redistribution and use in source and binary forms, with or without |
269 | modification, are permitted provided that the following conditions |
270 | are met: |
271 | |
272 | 1. Redistributions of source code must retain the above copyright |
273 | notice, this list of conditions and the following disclaimer. |
274 | 2. Redistributions in binary form must reproduce the above copyright |
275 | notice, this list of conditions and the following disclaimer in the |
276 | documentation and/or other materials provided with the distribution. |
277 | 3. The name of the author may not be used to endorse or promote |
278 | products derived from this software without specific prior written |
279 | permission. |
280 | |
281 | THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
282 | IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
283 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
284 | ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
285 | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
286 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
287 | SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
288 | HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
289 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
290 | IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
291 | POSSIBILITY OF SUCH DAMAGE. |
292 | */ |
293 | |