Commit | Line | Data |
---|---|---|
ec829051 | 1 | /* orinoco_nortel.c |
b884c872 | 2 | * |
ec829051 | 3 | * Driver for Prism II devices which would usually be driven by orinoco_cs, |
d4956572 PR |
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. | |
ec829051 PR |
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 | |
12 | * Some of this code is borrowed from orinoco_pci.c | |
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. | |
17 | * | |
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 | ||
ec829051 PR |
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> |
ec829051 PR |
48 | #include <pcmcia/cisreg.h> |
49 | ||
ec829051 | 50 | #include "orinoco.h" |
b884c872 | 51 | #include "orinoco_pci.h" |
ec829051 PR |
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 |
ec829051 PR |
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 | 65 | static 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 */ |
b884c872 PR |
70 | iowrite16(8, card->bridge_io + 2); |
71 | ioread16(card->attr_io + COR_OFFSET); | |
72 | iowrite16(0x80, card->attr_io + COR_OFFSET); | |
ec829051 PR |
73 | mdelay(1); |
74 | ||
75 | /* Give time for the card to recover from this hard effort */ | |
b884c872 PR |
76 | iowrite16(0, card->attr_io + COR_OFFSET); |
77 | iowrite16(0, card->attr_io + COR_OFFSET); | |
ec829051 PR |
78 | mdelay(1); |
79 | ||
b884c872 PR |
80 | /* Set COR as usual */ |
81 | iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); | |
82 | iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); | |
ec829051 PR |
83 | mdelay(1); |
84 | ||
b884c872 | 85 | iowrite16(0x228, card->bridge_io + 2); |
ec829051 PR |
86 | |
87 | return 0; | |
88 | } | |
89 | ||
b884c872 | 90 | static int orinoco_nortel_hw_init(struct orinoco_pci_card *card) |
ec829051 PR |
91 | { |
92 | int i; | |
93 | u32 reg; | |
94 | ||
b884c872 PR |
95 | /* Setup bridge */ |
96 | if (ioread16(card->bridge_io) & 1) { | |
ec829051 PR |
97 | printk(KERN_ERR PFX "brg1 answer1 wrong\n"); |
98 | return -EBUSY; | |
99 | } | |
b884c872 PR |
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); |
ec829051 PR |
104 | for (i = 0; i < 30; i++) { |
105 | mdelay(30); | |
b884c872 | 106 | if (ioread16(card->bridge_io) & 0x10) { |
ec829051 PR |
107 | break; |
108 | } | |
109 | } | |
110 | if (i == 30) { | |
111 | printk(KERN_ERR PFX "brg1 timed out\n"); | |
112 | return -EBUSY; | |
113 | } | |
b884c872 | 114 | if (ioread16(card->attr_io + COR_OFFSET) & 1) { |
ec829051 PR |
115 | printk(KERN_ERR PFX "brg2 answer1 wrong\n"); |
116 | return -EBUSY; | |
117 | } | |
b884c872 | 118 | if (ioread16(card->attr_io + COR_OFFSET + 2) & 1) { |
ec829051 PR |
119 | printk(KERN_ERR PFX "brg2 answer2 wrong\n"); |
120 | return -EBUSY; | |
121 | } | |
b884c872 | 122 | if (ioread16(card->attr_io + COR_OFFSET + 4) & 1) { |
ec829051 PR |
123 | printk(KERN_ERR PFX "brg2 answer3 wrong\n"); |
124 | return -EBUSY; | |
125 | } | |
126 | ||
dc3437d2 | 127 | /* Set the PCMCIA COR register */ |
b884c872 | 128 | iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); |
ec829051 | 129 | mdelay(1); |
b884c872 | 130 | reg = ioread16(card->attr_io + COR_OFFSET); |
ec829051 PR |
131 | if (reg != COR_VALUE) { |
132 | printk(KERN_ERR PFX "Error setting COR value (reg=%x)\n", | |
133 | reg); | |
134 | return -EBUSY; | |
135 | } | |
136 | ||
b884c872 PR |
137 | /* Set LEDs */ |
138 | iowrite16(1, card->bridge_io + 10); | |
ec829051 PR |
139 | return 0; |
140 | } | |
141 | ||
b884c872 PR |
142 | static int orinoco_nortel_init_one(struct pci_dev *pdev, |
143 | const struct pci_device_id *ent) | |
ec829051 PR |
144 | { |
145 | int err; | |
146 | struct orinoco_private *priv; | |
b884c872 | 147 | struct orinoco_pci_card *card; |
ec829051 | 148 | struct net_device *dev; |
b884c872 | 149 | void __iomem *hermes_io, *bridge_io, *attr_io; |
ec829051 PR |
150 | |
151 | err = pci_enable_device(pdev); | |
152 | if (err) { | |
153 | printk(KERN_ERR PFX "Cannot enable PCI device\n"); | |
154 | return err; | |
155 | } | |
156 | ||
157 | err = pci_request_regions(pdev, DRIVER_NAME); | |
b884c872 | 158 | if (err) { |
ec829051 PR |
159 | printk(KERN_ERR PFX "Cannot obtain PCI resources\n"); |
160 | goto fail_resources; | |
161 | } | |
162 | ||
b884c872 PR |
163 | bridge_io = pci_iomap(pdev, 0, 0); |
164 | if (!bridge_io) { | |
165 | printk(KERN_ERR PFX "Cannot map bridge registers\n"); | |
166 | err = -EIO; | |
167 | goto fail_map_bridge; | |
168 | } | |
169 | ||
170 | attr_io = pci_iomap(pdev, 1, 0); | |
171 | if (!attr_io) { | |
172 | printk(KERN_ERR PFX "Cannot map PCMCIA attributes\n"); | |
173 | err = -EIO; | |
174 | goto fail_map_attr; | |
175 | } | |
176 | ||
177 | hermes_io = pci_iomap(pdev, 2, 0); | |
178 | if (!hermes_io) { | |
179 | printk(KERN_ERR PFX "Cannot map chipset registers\n"); | |
180 | err = -EIO; | |
181 | goto fail_map_hermes; | |
ec829051 PR |
182 | } |
183 | ||
184 | /* Allocate network device */ | |
3994d502 DK |
185 | dev = alloc_orinocodev(sizeof(*card), &pdev->dev, |
186 | orinoco_nortel_cor_reset, NULL); | |
ec829051 PR |
187 | if (!dev) { |
188 | printk(KERN_ERR PFX "Cannot allocate network device\n"); | |
189 | err = -ENOMEM; | |
190 | goto fail_alloc; | |
191 | } | |
192 | ||
193 | priv = netdev_priv(dev); | |
194 | card = priv->card; | |
b884c872 PR |
195 | card->bridge_io = bridge_io; |
196 | card->attr_io = attr_io; | |
ec829051 PR |
197 | SET_NETDEV_DEV(dev, &pdev->dev); |
198 | ||
b884c872 | 199 | hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING); |
ec829051 | 200 | |
1fb9df5d | 201 | err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED, |
ec829051 PR |
202 | dev->name, dev); |
203 | if (err) { | |
204 | printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq); | |
205 | err = -EBUSY; | |
206 | goto fail_irq; | |
207 | } | |
ec829051 | 208 | |
b884c872 | 209 | err = orinoco_nortel_hw_init(card); |
ec829051 PR |
210 | if (err) { |
211 | printk(KERN_ERR PFX "Hardware initialization failed\n"); | |
212 | goto fail; | |
213 | } | |
214 | ||
b884c872 | 215 | err = orinoco_nortel_cor_reset(priv); |
ec829051 PR |
216 | if (err) { |
217 | printk(KERN_ERR PFX "Initial reset failed\n"); | |
218 | goto fail; | |
219 | } | |
220 | ||
ec829051 PR |
221 | err = register_netdev(dev); |
222 | if (err) { | |
223 | printk(KERN_ERR PFX "Cannot register network device\n"); | |
224 | goto fail; | |
225 | } | |
226 | ||
227 | pci_set_drvdata(pdev, dev); | |
461c078c PR |
228 | printk(KERN_DEBUG "%s: " DRIVER_NAME " at %s\n", dev->name, |
229 | pci_name(pdev)); | |
ec829051 PR |
230 | |
231 | return 0; | |
232 | ||
233 | fail: | |
234 | free_irq(pdev->irq, dev); | |
235 | ||
236 | fail_irq: | |
237 | pci_set_drvdata(pdev, NULL); | |
238 | free_orinocodev(dev); | |
239 | ||
240 | fail_alloc: | |
b884c872 PR |
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: |
ec829051 PR |
250 | pci_release_regions(pdev); |
251 | ||
252 | fail_resources: | |
253 | pci_disable_device(pdev); | |
254 | ||
255 | return err; | |
256 | } | |
257 | ||
b884c872 | 258 | static void __devexit orinoco_nortel_remove_one(struct pci_dev *pdev) |
ec829051 PR |
259 | { |
260 | struct net_device *dev = pci_get_drvdata(pdev); | |
261 | struct orinoco_private *priv = netdev_priv(dev); | |
b884c872 | 262 | struct orinoco_pci_card *card = priv->card; |
ec829051 | 263 | |
b884c872 PR |
264 | /* Clear LEDs */ |
265 | iowrite16(0, card->bridge_io + 10); | |
ec829051 PR |
266 | |
267 | unregister_netdev(dev); | |
461c078c | 268 | free_irq(pdev->irq, dev); |
ec829051 PR |
269 | pci_set_drvdata(pdev, NULL); |
270 | free_orinocodev(dev); | |
271 | pci_iounmap(pdev, priv->hw.iobase); | |
b884c872 PR |
272 | pci_iounmap(pdev, card->attr_io); |
273 | pci_iounmap(pdev, card->bridge_io); | |
ec829051 PR |
274 | pci_release_regions(pdev); |
275 | pci_disable_device(pdev); | |
276 | } | |
277 | ||
b884c872 | 278 | static struct pci_device_id orinoco_nortel_id_table[] = { |
ec829051 PR |
279 | /* Nortel emobility PCI */ |
280 | {0x126c, 0x8030, PCI_ANY_ID, PCI_ANY_ID,}, | |
d4956572 PR |
281 | /* Symbol LA-4123 PCI */ |
282 | {0x1562, 0x0001, PCI_ANY_ID, PCI_ANY_ID,}, | |
ec829051 PR |
283 | {0,}, |
284 | }; | |
285 | ||
b884c872 | 286 | MODULE_DEVICE_TABLE(pci, orinoco_nortel_id_table); |
ec829051 | 287 | |
b884c872 | 288 | static struct pci_driver orinoco_nortel_driver = { |
c6fb2e9a | 289 | .name = DRIVER_NAME, |
b884c872 PR |
290 | .id_table = orinoco_nortel_id_table, |
291 | .probe = orinoco_nortel_init_one, | |
292 | .remove = __devexit_p(orinoco_nortel_remove_one), | |
293 | .suspend = orinoco_pci_suspend, | |
294 | .resume = orinoco_pci_resume, | |
ec829051 PR |
295 | }; |
296 | ||
297 | static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION | |
298 | " (Tobias Hoffmann & Christoph Jungegger <disdos@traum404.de>)"; | |
299 | MODULE_AUTHOR("Christoph Jungegger <disdos@traum404.de>"); | |
300 | MODULE_DESCRIPTION | |
301 | ("Driver for wireless LAN cards using the Nortel PCI bridge"); | |
302 | MODULE_LICENSE("Dual MPL/GPL"); | |
303 | ||
b884c872 | 304 | static int __init orinoco_nortel_init(void) |
ec829051 PR |
305 | { |
306 | printk(KERN_DEBUG "%s\n", version); | |
29917620 | 307 | return pci_register_driver(&orinoco_nortel_driver); |
ec829051 PR |
308 | } |
309 | ||
b884c872 | 310 | static void __exit orinoco_nortel_exit(void) |
ec829051 | 311 | { |
b884c872 | 312 | pci_unregister_driver(&orinoco_nortel_driver); |
ec829051 PR |
313 | } |
314 | ||
b884c872 PR |
315 | module_init(orinoco_nortel_init); |
316 | module_exit(orinoco_nortel_exit); | |
ec829051 PR |
317 | |
318 | /* | |
319 | * Local variables: | |
320 | * c-indent-level: 8 | |
321 | * c-basic-offset: 8 | |
322 | * tab-width: 8 | |
323 | * End: | |
324 | */ |