3 * Driver for Prism II devices which would usually be driven by orinoco_cs,
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.
7 * Copyright (C) 2002 Tobias Hoffmann
8 * (C) 2003 Christoph Jungegger <disdos@traum404.de>
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.
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/
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.
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.
40 #define DRIVER_NAME "orinoco_nortel"
41 #define PFX DRIVER_NAME ": "
43 #include <linux/module.h>
44 #include <linux/kernel.h>
45 #include <linux/init.h>
46 #include <linux/delay.h>
47 #include <linux/pci.h>
48 #include <pcmcia/cisreg.h>
51 #include "orinoco_pci.h"
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 */
58 * Do a soft reset of the card using the Configuration Option Register
59 * We need this to get going...
60 * This is the part of the code that is strongly inspired from wlan-ng
62 * Note bis : Don't try to access HERMES_CMD during the reset phase.
63 * It just won't work !
65 static int orinoco_nortel_cor_reset(struct orinoco_private
*priv
)
67 struct orinoco_pci_card
*card
= priv
->card
;
69 /* Assert the reset until the card notices */
70 iowrite16(8, card
->bridge_io
+ 2);
71 ioread16(card
->attr_io
+ COR_OFFSET
);
72 iowrite16(0x80, card
->attr_io
+ COR_OFFSET
);
75 /* Give time for the card to recover from this hard effort */
76 iowrite16(0, card
->attr_io
+ COR_OFFSET
);
77 iowrite16(0, card
->attr_io
+ COR_OFFSET
);
80 /* Set COR as usual */
81 iowrite16(COR_VALUE
, card
->attr_io
+ COR_OFFSET
);
82 iowrite16(COR_VALUE
, card
->attr_io
+ COR_OFFSET
);
85 iowrite16(0x228, card
->bridge_io
+ 2);
90 static int orinoco_nortel_hw_init(struct orinoco_pci_card
*card
)
96 if (ioread16(card
->bridge_io
) & 1) {
97 printk(KERN_ERR PFX
"brg1 answer1 wrong\n");
100 iowrite16(0x118, card
->bridge_io
+ 2);
101 iowrite16(0x108, card
->bridge_io
+ 2);
103 iowrite16(0x8, card
->bridge_io
+ 2);
104 for (i
= 0; i
< 30; i
++) {
106 if (ioread16(card
->bridge_io
) & 0x10) {
111 printk(KERN_ERR PFX
"brg1 timed out\n");
114 if (ioread16(card
->attr_io
+ COR_OFFSET
) & 1) {
115 printk(KERN_ERR PFX
"brg2 answer1 wrong\n");
118 if (ioread16(card
->attr_io
+ COR_OFFSET
+ 2) & 1) {
119 printk(KERN_ERR PFX
"brg2 answer2 wrong\n");
122 if (ioread16(card
->attr_io
+ COR_OFFSET
+ 4) & 1) {
123 printk(KERN_ERR PFX
"brg2 answer3 wrong\n");
127 /* Set the PCMCIA COR register */
128 iowrite16(COR_VALUE
, card
->attr_io
+ COR_OFFSET
);
130 reg
= ioread16(card
->attr_io
+ COR_OFFSET
);
131 if (reg
!= COR_VALUE
) {
132 printk(KERN_ERR PFX
"Error setting COR value (reg=%x)\n",
138 iowrite16(1, card
->bridge_io
+ 10);
142 static int orinoco_nortel_init_one(struct pci_dev
*pdev
,
143 const struct pci_device_id
*ent
)
146 struct orinoco_private
*priv
;
147 struct orinoco_pci_card
*card
;
148 struct net_device
*dev
;
149 void __iomem
*hermes_io
, *bridge_io
, *attr_io
;
151 err
= pci_enable_device(pdev
);
153 printk(KERN_ERR PFX
"Cannot enable PCI device\n");
157 err
= pci_request_regions(pdev
, DRIVER_NAME
);
159 printk(KERN_ERR PFX
"Cannot obtain PCI resources\n");
163 bridge_io
= pci_iomap(pdev
, 0, 0);
165 printk(KERN_ERR PFX
"Cannot map bridge registers\n");
167 goto fail_map_bridge
;
170 attr_io
= pci_iomap(pdev
, 1, 0);
172 printk(KERN_ERR PFX
"Cannot map PCMCIA attributes\n");
177 hermes_io
= pci_iomap(pdev
, 2, 0);
179 printk(KERN_ERR PFX
"Cannot map chipset registers\n");
181 goto fail_map_hermes
;
184 /* Allocate network device */
185 dev
= alloc_orinocodev(sizeof(*card
), &pdev
->dev
,
186 orinoco_nortel_cor_reset
, NULL
);
188 printk(KERN_ERR PFX
"Cannot allocate network device\n");
193 priv
= netdev_priv(dev
);
195 card
->bridge_io
= bridge_io
;
196 card
->attr_io
= attr_io
;
197 SET_NETDEV_DEV(dev
, &pdev
->dev
);
199 hermes_struct_init(&priv
->hw
, hermes_io
, HERMES_16BIT_REGSPACING
);
201 err
= request_irq(pdev
->irq
, orinoco_interrupt
, IRQF_SHARED
,
204 printk(KERN_ERR PFX
"Cannot allocate IRQ %d\n", pdev
->irq
);
209 err
= orinoco_nortel_hw_init(card
);
211 printk(KERN_ERR PFX
"Hardware initialization failed\n");
215 err
= orinoco_nortel_cor_reset(priv
);
217 printk(KERN_ERR PFX
"Initial reset failed\n");
221 err
= register_netdev(dev
);
223 printk(KERN_ERR PFX
"Cannot register network device\n");
227 pci_set_drvdata(pdev
, dev
);
228 printk(KERN_DEBUG
"%s: " DRIVER_NAME
" at %s\n", dev
->name
,
234 free_irq(pdev
->irq
, dev
);
237 pci_set_drvdata(pdev
, NULL
);
238 free_orinocodev(dev
);
241 pci_iounmap(pdev
, hermes_io
);
244 pci_iounmap(pdev
, attr_io
);
247 pci_iounmap(pdev
, bridge_io
);
250 pci_release_regions(pdev
);
253 pci_disable_device(pdev
);
258 static void __devexit
orinoco_nortel_remove_one(struct pci_dev
*pdev
)
260 struct net_device
*dev
= pci_get_drvdata(pdev
);
261 struct orinoco_private
*priv
= netdev_priv(dev
);
262 struct orinoco_pci_card
*card
= priv
->card
;
265 iowrite16(0, card
->bridge_io
+ 10);
267 unregister_netdev(dev
);
268 free_irq(pdev
->irq
, dev
);
269 pci_set_drvdata(pdev
, NULL
);
270 free_orinocodev(dev
);
271 pci_iounmap(pdev
, priv
->hw
.iobase
);
272 pci_iounmap(pdev
, card
->attr_io
);
273 pci_iounmap(pdev
, card
->bridge_io
);
274 pci_release_regions(pdev
);
275 pci_disable_device(pdev
);
278 static struct pci_device_id orinoco_nortel_id_table
[] = {
279 /* Nortel emobility PCI */
280 {0x126c, 0x8030, PCI_ANY_ID
, PCI_ANY_ID
,},
281 /* Symbol LA-4123 PCI */
282 {0x1562, 0x0001, PCI_ANY_ID
, PCI_ANY_ID
,},
286 MODULE_DEVICE_TABLE(pci
, orinoco_nortel_id_table
);
288 static struct pci_driver orinoco_nortel_driver
= {
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
,
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>");
301 ("Driver for wireless LAN cards using the Nortel PCI bridge");
302 MODULE_LICENSE("Dual MPL/GPL");
304 static int __init
orinoco_nortel_init(void)
306 printk(KERN_DEBUG
"%s\n", version
);
307 return pci_register_driver(&orinoco_nortel_driver
);
310 static void __exit
orinoco_nortel_exit(void)
312 pci_unregister_driver(&orinoco_nortel_driver
);
315 module_init(orinoco_nortel_init
);
316 module_exit(orinoco_nortel_exit
);