3 * Driver for Prism II devices which would usually be driven by orinoco_cs,
4 * but are connected to the PCI bus by a TMD7160.
6 * Copyright (C) 2003 Joerg Dorchain <joerg AT dorchain.net>
7 * based heavily upon orinoco_plx.c Copyright (C) 2001 Daniel Barlow
9 * The contents of this file are subject to the Mozilla Public License
10 * Version 1.1 (the "License"); you may not use this file except in
11 * compliance with the License. You may obtain a copy of the License
12 * at http://www.mozilla.org/MPL/
14 * Software distributed under the License is distributed on an "AS IS"
15 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
16 * the License for the specific language governing rights and
17 * limitations under the License.
19 * Alternatively, the contents of this file may be used under the
20 * terms of the GNU General Public License version 2 (the "GPL"), in
21 * which case the provisions of the GPL are applicable instead of the
22 * above. If you wish to allow the use of your version of this file
23 * only under the terms of the GPL and not to allow others to use your
24 * version of this file under the MPL, indicate your decision by
25 * deleting the provisions above and replace them with the notice and
26 * other provisions required by the GPL. If you do not delete the
27 * provisions above, a recipient may use your version of this file
28 * under either the MPL or the GPL.
30 * Caution: this is experimental and probably buggy. For success and
31 * failure reports for different cards and adaptors, see
32 * orinoco_tmd_pci_id_table near the end of the file. If you have a
33 * card we don't have the PCI id for, and looks like it should work,
34 * drop me mail with the id and "it works"/"it doesn't work".
36 * Note: if everything gets detected fine but it doesn't actually send
37 * or receive packets, your first port of call should probably be to
38 * try newer firmware in the card. Especially if you're doing Ad-Hoc
41 * The actual driving is done by orinoco.c, this is just resource
44 * This driver is modeled after the orinoco_plx driver. The main
45 * difference is that the TMD chip has only IO port ranges and no
46 * memory space, i.e. no access to the CIS. Compared to the PLX chip,
47 * the io range functionalities are exchanged.
49 * Pheecom sells cards with the TMD chip as "ASIC version"
52 #define DRIVER_NAME "orinoco_tmd"
53 #define PFX DRIVER_NAME ": "
55 #include <linux/config.h>
56 #include <linux/module.h>
57 #include <linux/kernel.h>
58 #include <linux/init.h>
59 #include <linux/delay.h>
60 #include <linux/pci.h>
61 #include <pcmcia/cisreg.h>
65 #define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */
66 #define COR_RESET (0x80) /* reset bit in the COR register */
67 #define TMD_RESET_TIME (500) /* milliseconds */
69 /* Orinoco TMD specific data */
70 struct orinoco_tmd_card
{
76 * Do a soft reset of the card using the Configuration Option Register
78 static int orinoco_tmd_cor_reset(struct orinoco_private
*priv
)
80 hermes_t
*hw
= &priv
->hw
;
81 struct orinoco_tmd_card
*card
= priv
->card
;
82 u32 addr
= card
->tmd_io
;
83 unsigned long timeout
;
86 outb(COR_VALUE
| COR_RESET
, addr
);
89 outb(COR_VALUE
, addr
);
92 /* Just in case, wait more until the card is no longer busy */
93 timeout
= jiffies
+ (TMD_RESET_TIME
* HZ
/ 1000);
94 reg
= hermes_read_regn(hw
, CMD
);
95 while (time_before(jiffies
, timeout
) && (reg
& HERMES_CMD_BUSY
)) {
97 reg
= hermes_read_regn(hw
, CMD
);
100 /* Did we timeout ? */
101 if (reg
& HERMES_CMD_BUSY
) {
102 printk(KERN_ERR PFX
"Busy timeout\n");
110 static int orinoco_tmd_init_one(struct pci_dev
*pdev
,
111 const struct pci_device_id
*ent
)
114 struct orinoco_private
*priv
= NULL
;
115 struct orinoco_tmd_card
*card
;
116 struct net_device
*dev
= NULL
;
119 err
= pci_enable_device(pdev
);
121 printk(KERN_ERR PFX
"Cannot enable PCI device\n");
125 err
= pci_request_regions(pdev
, DRIVER_NAME
);
127 printk(KERN_ERR PFX
"Cannot obtain PCI resources\n");
131 mem
= pci_iomap(pdev
, 2, 0);
137 /* Allocate network device */
138 dev
= alloc_orinocodev(sizeof(*card
), orinoco_tmd_cor_reset
);
140 printk(KERN_ERR PFX
"Cannot allocate network device\n");
145 priv
= netdev_priv(dev
);
147 card
->tmd_io
= pci_resource_start(pdev
, 1);
148 dev
->base_addr
= pci_resource_start(pdev
, 2);
149 SET_MODULE_OWNER(dev
);
150 SET_NETDEV_DEV(dev
, &pdev
->dev
);
152 hermes_struct_init(&priv
->hw
, mem
, HERMES_16BIT_REGSPACING
);
154 printk(KERN_DEBUG PFX
"Detected Orinoco/Prism2 TMD device "
155 "at %s irq:%d, io addr:0x%lx\n", pci_name(pdev
), pdev
->irq
,
158 err
= request_irq(pdev
->irq
, orinoco_interrupt
, SA_SHIRQ
,
161 printk(KERN_ERR PFX
"Cannot allocate IRQ %d\n", pdev
->irq
);
165 dev
->irq
= pdev
->irq
;
167 err
= orinoco_tmd_cor_reset(priv
);
169 printk(KERN_ERR PFX
"Initial reset failed\n");
173 err
= register_netdev(dev
);
175 printk(KERN_ERR PFX
"Cannot register network device\n");
179 pci_set_drvdata(pdev
, dev
);
184 free_irq(pdev
->irq
, dev
);
187 pci_set_drvdata(pdev
, NULL
);
188 free_orinocodev(dev
);
191 pci_iounmap(pdev
, mem
);
194 pci_release_regions(pdev
);
197 pci_disable_device(pdev
);
202 static void __devexit
orinoco_tmd_remove_one(struct pci_dev
*pdev
)
204 struct net_device
*dev
= pci_get_drvdata(pdev
);
205 struct orinoco_private
*priv
= dev
->priv
;
209 unregister_netdev(dev
);
210 free_irq(dev
->irq
, dev
);
211 pci_set_drvdata(pdev
, NULL
);
212 free_orinocodev(dev
);
213 pci_iounmap(pdev
, priv
->hw
.iobase
);
214 pci_release_regions(pdev
);
215 pci_disable_device(pdev
);
219 static struct pci_device_id orinoco_tmd_pci_id_table
[] = {
220 {0x15e8, 0x0131, PCI_ANY_ID
, PCI_ANY_ID
,}, /* NDC and OEMs, e.g. pheecom */
224 MODULE_DEVICE_TABLE(pci
, orinoco_tmd_pci_id_table
);
226 static struct pci_driver orinoco_tmd_driver
= {
228 .id_table
= orinoco_tmd_pci_id_table
,
229 .probe
= orinoco_tmd_init_one
,
230 .remove
= __devexit_p(orinoco_tmd_remove_one
),
233 static char version
[] __initdata
= DRIVER_NAME
" " DRIVER_VERSION
234 " (Joerg Dorchain <joerg@dorchain.net>)";
235 MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>");
236 MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge");
237 MODULE_LICENSE("Dual MPL/GPL");
239 static int __init
orinoco_tmd_init(void)
241 printk(KERN_DEBUG
"%s\n", version
);
242 return pci_module_init(&orinoco_tmd_driver
);
245 static void __exit
orinoco_tmd_exit(void)
247 pci_unregister_driver(&orinoco_tmd_driver
);
251 module_init(orinoco_tmd_init
);
252 module_exit(orinoco_tmd_exit
);