]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/net/wireless/orinoco/orinoco_nortel.c
drivers/net/: use DEFINE_PCI_DEVICE_TABLE()
[net-next-2.6.git] / drivers / net / wireless / orinoco / orinoco_nortel.c
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ec829051 1/* orinoco_nortel.c
b884c872 2 *
ec829051 3 * Driver for Prism II devices which would usually be driven by orinoco_cs,
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4 * but are connected to the PCI bus by a PCI-to-PCMCIA adapter used in
5 * Nortel emobility, Symbol LA-4113 and Symbol LA-4123.
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6 *
7 * Copyright (C) 2002 Tobias Hoffmann
8 * (C) 2003 Christoph Jungegger <disdos@traum404.de>
9 *
10 * Some of this code is borrowed from orinoco_plx.c
11 * Copyright (C) 2001 Daniel Barlow
d14c7c1d 12 * Some of this code is borrowed from orinoco_pci.c
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13 * Copyright (C) 2001 Jean Tourrilhes
14 * Some of this code is "inspired" by linux-wlan-ng-0.1.10, but nothing
15 * has been copied from it. linux-wlan-ng-0.1.10 is originally :
16 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
d14c7c1d 17 *
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18 * The contents of this file are subject to the Mozilla Public License
19 * Version 1.1 (the "License"); you may not use this file except in
20 * compliance with the License. You may obtain a copy of the License
21 * at http://www.mozilla.org/MPL/
22 *
23 * Software distributed under the License is distributed on an "AS IS"
24 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
25 * the License for the specific language governing rights and
26 * limitations under the License.
27 *
28 * Alternatively, the contents of this file may be used under the
29 * terms of the GNU General Public License version 2 (the "GPL"), in
30 * which case the provisions of the GPL are applicable instead of the
31 * above. If you wish to allow the use of your version of this file
32 * only under the terms of the GPL and not to allow others to use your
33 * version of this file under the MPL, indicate your decision by
34 * deleting the provisions above and replace them with the notice and
35 * other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file
37 * under either the MPL or the GPL.
38 */
39
40#define DRIVER_NAME "orinoco_nortel"
41#define PFX DRIVER_NAME ": "
42
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43#include <linux/module.h>
44#include <linux/kernel.h>
45#include <linux/init.h>
ef846bf0 46#include <linux/delay.h>
ec829051 47#include <linux/pci.h>
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48#include <pcmcia/cisreg.h>
49
ec829051 50#include "orinoco.h"
b884c872 51#include "orinoco_pci.h"
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52
53#define COR_OFFSET (0xe0) /* COR attribute offset of Prism2 PC card */
54#define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */
55
56
ec829051 57/*
dc3437d2 58 * Do a soft reset of the card using the Configuration Option Register
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59 * We need this to get going...
60 * This is the part of the code that is strongly inspired from wlan-ng
61 *
62 * Note bis : Don't try to access HERMES_CMD during the reset phase.
63 * It just won't work !
64 */
b884c872 65static int orinoco_nortel_cor_reset(struct orinoco_private *priv)
ec829051 66{
b884c872 67 struct orinoco_pci_card *card = priv->card;
ec829051 68
dc3437d2 69 /* Assert the reset until the card notices */
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70 iowrite16(8, card->bridge_io + 2);
71 ioread16(card->attr_io + COR_OFFSET);
72 iowrite16(0x80, card->attr_io + COR_OFFSET);
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73 mdelay(1);
74
75 /* Give time for the card to recover from this hard effort */
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76 iowrite16(0, card->attr_io + COR_OFFSET);
77 iowrite16(0, card->attr_io + COR_OFFSET);
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78 mdelay(1);
79
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80 /* Set COR as usual */
81 iowrite16(COR_VALUE, card->attr_io + COR_OFFSET);
82 iowrite16(COR_VALUE, card->attr_io + COR_OFFSET);
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83 mdelay(1);
84
b884c872 85 iowrite16(0x228, card->bridge_io + 2);
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86
87 return 0;
88}
89
b884c872 90static int orinoco_nortel_hw_init(struct orinoco_pci_card *card)
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91{
92 int i;
93 u32 reg;
94
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95 /* Setup bridge */
96 if (ioread16(card->bridge_io) & 1) {
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97 printk(KERN_ERR PFX "brg1 answer1 wrong\n");
98 return -EBUSY;
99 }
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100 iowrite16(0x118, card->bridge_io + 2);
101 iowrite16(0x108, card->bridge_io + 2);
ec829051 102 mdelay(30);
b884c872 103 iowrite16(0x8, card->bridge_io + 2);
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104 for (i = 0; i < 30; i++) {
105 mdelay(30);
d14c7c1d 106 if (ioread16(card->bridge_io) & 0x10)
ec829051 107 break;
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108 }
109 if (i == 30) {
110 printk(KERN_ERR PFX "brg1 timed out\n");
111 return -EBUSY;
112 }
b884c872 113 if (ioread16(card->attr_io + COR_OFFSET) & 1) {
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114 printk(KERN_ERR PFX "brg2 answer1 wrong\n");
115 return -EBUSY;
116 }
b884c872 117 if (ioread16(card->attr_io + COR_OFFSET + 2) & 1) {
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118 printk(KERN_ERR PFX "brg2 answer2 wrong\n");
119 return -EBUSY;
120 }
b884c872 121 if (ioread16(card->attr_io + COR_OFFSET + 4) & 1) {
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122 printk(KERN_ERR PFX "brg2 answer3 wrong\n");
123 return -EBUSY;
124 }
125
dc3437d2 126 /* Set the PCMCIA COR register */
b884c872 127 iowrite16(COR_VALUE, card->attr_io + COR_OFFSET);
ec829051 128 mdelay(1);
b884c872 129 reg = ioread16(card->attr_io + COR_OFFSET);
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130 if (reg != COR_VALUE) {
131 printk(KERN_ERR PFX "Error setting COR value (reg=%x)\n",
132 reg);
133 return -EBUSY;
134 }
135
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136 /* Set LEDs */
137 iowrite16(1, card->bridge_io + 10);
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138 return 0;
139}
140
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141static int orinoco_nortel_init_one(struct pci_dev *pdev,
142 const struct pci_device_id *ent)
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143{
144 int err;
145 struct orinoco_private *priv;
b884c872 146 struct orinoco_pci_card *card;
b884c872 147 void __iomem *hermes_io, *bridge_io, *attr_io;
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148
149 err = pci_enable_device(pdev);
150 if (err) {
151 printk(KERN_ERR PFX "Cannot enable PCI device\n");
152 return err;
153 }
154
155 err = pci_request_regions(pdev, DRIVER_NAME);
b884c872 156 if (err) {
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157 printk(KERN_ERR PFX "Cannot obtain PCI resources\n");
158 goto fail_resources;
159 }
160
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161 bridge_io = pci_iomap(pdev, 0, 0);
162 if (!bridge_io) {
163 printk(KERN_ERR PFX "Cannot map bridge registers\n");
164 err = -EIO;
165 goto fail_map_bridge;
166 }
167
168 attr_io = pci_iomap(pdev, 1, 0);
169 if (!attr_io) {
170 printk(KERN_ERR PFX "Cannot map PCMCIA attributes\n");
171 err = -EIO;
172 goto fail_map_attr;
173 }
174
175 hermes_io = pci_iomap(pdev, 2, 0);
176 if (!hermes_io) {
177 printk(KERN_ERR PFX "Cannot map chipset registers\n");
178 err = -EIO;
179 goto fail_map_hermes;
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180 }
181
182 /* Allocate network device */
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183 priv = alloc_orinocodev(sizeof(*card), &pdev->dev,
184 orinoco_nortel_cor_reset, NULL);
185 if (!priv) {
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186 printk(KERN_ERR PFX "Cannot allocate network device\n");
187 err = -ENOMEM;
188 goto fail_alloc;
189 }
190
ec829051 191 card = priv->card;
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192 card->bridge_io = bridge_io;
193 card->attr_io = attr_io;
ec829051 194
b884c872 195 hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING);
ec829051 196
1fb9df5d 197 err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED,
5381956b 198 DRIVER_NAME, priv);
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199 if (err) {
200 printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq);
201 err = -EBUSY;
202 goto fail_irq;
203 }
ec829051 204
b884c872 205 err = orinoco_nortel_hw_init(card);
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206 if (err) {
207 printk(KERN_ERR PFX "Hardware initialization failed\n");
208 goto fail;
209 }
210
b884c872 211 err = orinoco_nortel_cor_reset(priv);
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212 if (err) {
213 printk(KERN_ERR PFX "Initial reset failed\n");
214 goto fail;
215 }
216
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217 err = orinoco_init(priv);
218 if (err) {
219 printk(KERN_ERR PFX "orinoco_init() failed\n");
220 goto fail;
221 }
222
5381956b 223 err = orinoco_if_add(priv, 0, 0);
ec829051 224 if (err) {
5381956b 225 printk(KERN_ERR PFX "orinoco_if_add() failed\n");
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226 goto fail;
227 }
228
a2608362 229 pci_set_drvdata(pdev, priv);
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230
231 return 0;
232
233 fail:
a2608362 234 free_irq(pdev->irq, priv);
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235
236 fail_irq:
237 pci_set_drvdata(pdev, NULL);
a2608362 238 free_orinocodev(priv);
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239
240 fail_alloc:
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241 pci_iounmap(pdev, hermes_io);
242
243 fail_map_hermes:
244 pci_iounmap(pdev, attr_io);
245
246 fail_map_attr:
247 pci_iounmap(pdev, bridge_io);
ec829051 248
b884c872 249 fail_map_bridge:
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250 pci_release_regions(pdev);
251
252 fail_resources:
253 pci_disable_device(pdev);
254
255 return err;
256}
257
b884c872 258static void __devexit orinoco_nortel_remove_one(struct pci_dev *pdev)
ec829051 259{
a2608362 260 struct orinoco_private *priv = pci_get_drvdata(pdev);
b884c872 261 struct orinoco_pci_card *card = priv->card;
ec829051 262
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263 /* Clear LEDs */
264 iowrite16(0, card->bridge_io + 10);
ec829051 265
5381956b 266 orinoco_if_del(priv);
a2608362 267 free_irq(pdev->irq, priv);
ec829051 268 pci_set_drvdata(pdev, NULL);
a2608362 269 free_orinocodev(priv);
ec829051 270 pci_iounmap(pdev, priv->hw.iobase);
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271 pci_iounmap(pdev, card->attr_io);
272 pci_iounmap(pdev, card->bridge_io);
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273 pci_release_regions(pdev);
274 pci_disable_device(pdev);
275}
276
a3aa1884 277static DEFINE_PCI_DEVICE_TABLE(orinoco_nortel_id_table) = {
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278 /* Nortel emobility PCI */
279 {0x126c, 0x8030, PCI_ANY_ID, PCI_ANY_ID,},
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280 /* Symbol LA-4123 PCI */
281 {0x1562, 0x0001, PCI_ANY_ID, PCI_ANY_ID,},
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282 {0,},
283};
284
b884c872 285MODULE_DEVICE_TABLE(pci, orinoco_nortel_id_table);
ec829051 286
b884c872 287static struct pci_driver orinoco_nortel_driver = {
c6fb2e9a 288 .name = DRIVER_NAME,
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289 .id_table = orinoco_nortel_id_table,
290 .probe = orinoco_nortel_init_one,
291 .remove = __devexit_p(orinoco_nortel_remove_one),
292 .suspend = orinoco_pci_suspend,
293 .resume = orinoco_pci_resume,
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294};
295
296static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
297 " (Tobias Hoffmann & Christoph Jungegger <disdos@traum404.de>)";
298MODULE_AUTHOR("Christoph Jungegger <disdos@traum404.de>");
299MODULE_DESCRIPTION
300 ("Driver for wireless LAN cards using the Nortel PCI bridge");
301MODULE_LICENSE("Dual MPL/GPL");
302
b884c872 303static int __init orinoco_nortel_init(void)
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304{
305 printk(KERN_DEBUG "%s\n", version);
29917620 306 return pci_register_driver(&orinoco_nortel_driver);
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307}
308
b884c872 309static void __exit orinoco_nortel_exit(void)
ec829051 310{
b884c872 311 pci_unregister_driver(&orinoco_nortel_driver);
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312}
313
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314module_init(orinoco_nortel_init);
315module_exit(orinoco_nortel_exit);
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316
317/*
318 * Local variables:
319 * c-indent-level: 8
320 * c-basic-offset: 8
321 * tab-width: 8
322 * End:
323 */