Version:  2.0.40 2.2.26 2.4.37 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15

Linux/drivers/net/wireless/orinoco/orinoco_tmd.c

  1 /* orinoco_tmd.c
  2  *
  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.
  5  *
  6  * Copyright (C) 2003 Joerg Dorchain <joerg AT dorchain.net>
  7  * based heavily upon orinoco_plx.c Copyright (C) 2001 Daniel Barlow
  8  *
  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/
 13  *
 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.
 18  *
 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.
 29  *
 30  * The actual driving is done by main.c, this is just resource
 31  * allocation stuff.
 32  *
 33  * This driver is modeled after the orinoco_plx driver. The main
 34  * difference is that the TMD chip has only IO port ranges and doesn't
 35  * provide access to the PCMCIA attribute space.
 36  *
 37  * Pheecom sells cards with the TMD chip as "ASIC version"
 38  */
 39 
 40 #define DRIVER_NAME "orinoco_tmd"
 41 #define PFX DRIVER_NAME ": "
 42 
 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>
 49 
 50 #include "orinoco.h"
 51 #include "orinoco_pci.h"
 52 
 53 #define COR_VALUE       (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */
 54 #define COR_RESET     (0x80)    /* reset bit in the COR register */
 55 #define TMD_RESET_TIME  (500)   /* milliseconds */
 56 
 57 /*
 58  * Do a soft reset of the card using the Configuration Option Register
 59  */
 60 static int orinoco_tmd_cor_reset(struct orinoco_private *priv)
 61 {
 62         struct hermes *hw = &priv->hw;
 63         struct orinoco_pci_card *card = priv->card;
 64         unsigned long timeout;
 65         u16 reg;
 66 
 67         iowrite8(COR_VALUE | COR_RESET, card->bridge_io);
 68         mdelay(1);
 69 
 70         iowrite8(COR_VALUE, card->bridge_io);
 71         mdelay(1);
 72 
 73         /* Just in case, wait more until the card is no longer busy */
 74         timeout = jiffies + (TMD_RESET_TIME * HZ / 1000);
 75         reg = hermes_read_regn(hw, CMD);
 76         while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) {
 77                 mdelay(1);
 78                 reg = hermes_read_regn(hw, CMD);
 79         }
 80 
 81         /* Still busy? */
 82         if (reg & HERMES_CMD_BUSY) {
 83                 printk(KERN_ERR PFX "Busy timeout\n");
 84                 return -ETIMEDOUT;
 85         }
 86 
 87         return 0;
 88 }
 89 
 90 
 91 static int orinoco_tmd_init_one(struct pci_dev *pdev,
 92                                 const struct pci_device_id *ent)
 93 {
 94         int err;
 95         struct orinoco_private *priv;
 96         struct orinoco_pci_card *card;
 97         void __iomem *hermes_io, *bridge_io;
 98 
 99         err = pci_enable_device(pdev);
100         if (err) {
101                 printk(KERN_ERR PFX "Cannot enable PCI device\n");
102                 return err;
103         }
104 
105         err = pci_request_regions(pdev, DRIVER_NAME);
106         if (err) {
107                 printk(KERN_ERR PFX "Cannot obtain PCI resources\n");
108                 goto fail_resources;
109         }
110 
111         bridge_io = pci_iomap(pdev, 1, 0);
112         if (!bridge_io) {
113                 printk(KERN_ERR PFX "Cannot map bridge registers\n");
114                 err = -EIO;
115                 goto fail_map_bridge;
116         }
117 
118         hermes_io = pci_iomap(pdev, 2, 0);
119         if (!hermes_io) {
120                 printk(KERN_ERR PFX "Cannot map chipset registers\n");
121                 err = -EIO;
122                 goto fail_map_hermes;
123         }
124 
125         /* Allocate network device */
126         priv = alloc_orinocodev(sizeof(*card), &pdev->dev,
127                                 orinoco_tmd_cor_reset, NULL);
128         if (!priv) {
129                 printk(KERN_ERR PFX "Cannot allocate network device\n");
130                 err = -ENOMEM;
131                 goto fail_alloc;
132         }
133 
134         card = priv->card;
135         card->bridge_io = bridge_io;
136 
137         hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING);
138 
139         err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED,
140                           DRIVER_NAME, priv);
141         if (err) {
142                 printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq);
143                 err = -EBUSY;
144                 goto fail_irq;
145         }
146 
147         err = orinoco_tmd_cor_reset(priv);
148         if (err) {
149                 printk(KERN_ERR PFX "Initial reset failed\n");
150                 goto fail;
151         }
152 
153         err = orinoco_init(priv);
154         if (err) {
155                 printk(KERN_ERR PFX "orinoco_init() failed\n");
156                 goto fail;
157         }
158 
159         err = orinoco_if_add(priv, 0, 0, NULL);
160         if (err) {
161                 printk(KERN_ERR PFX "orinoco_if_add() failed\n");
162                 goto fail;
163         }
164 
165         pci_set_drvdata(pdev, priv);
166 
167         return 0;
168 
169  fail:
170         free_irq(pdev->irq, priv);
171 
172  fail_irq:
173         free_orinocodev(priv);
174 
175  fail_alloc:
176         pci_iounmap(pdev, hermes_io);
177 
178  fail_map_hermes:
179         pci_iounmap(pdev, bridge_io);
180 
181  fail_map_bridge:
182         pci_release_regions(pdev);
183 
184  fail_resources:
185         pci_disable_device(pdev);
186 
187         return err;
188 }
189 
190 static void orinoco_tmd_remove_one(struct pci_dev *pdev)
191 {
192         struct orinoco_private *priv = pci_get_drvdata(pdev);
193         struct orinoco_pci_card *card = priv->card;
194 
195         orinoco_if_del(priv);
196         free_irq(pdev->irq, priv);
197         free_orinocodev(priv);
198         pci_iounmap(pdev, priv->hw.iobase);
199         pci_iounmap(pdev, card->bridge_io);
200         pci_release_regions(pdev);
201         pci_disable_device(pdev);
202 }
203 
204 static DEFINE_PCI_DEVICE_TABLE(orinoco_tmd_id_table) = {
205         {0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,},      /* NDC and OEMs, e.g. pheecom */
206         {0,},
207 };
208 
209 MODULE_DEVICE_TABLE(pci, orinoco_tmd_id_table);
210 
211 static struct pci_driver orinoco_tmd_driver = {
212         .name           = DRIVER_NAME,
213         .id_table       = orinoco_tmd_id_table,
214         .probe          = orinoco_tmd_init_one,
215         .remove         = orinoco_tmd_remove_one,
216         .suspend        = orinoco_pci_suspend,
217         .resume         = orinoco_pci_resume,
218 };
219 
220 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
221         " (Joerg Dorchain <joerg@dorchain.net>)";
222 MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>");
223 MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge");
224 MODULE_LICENSE("Dual MPL/GPL");
225 
226 static int __init orinoco_tmd_init(void)
227 {
228         printk(KERN_DEBUG "%s\n", version);
229         return pci_register_driver(&orinoco_tmd_driver);
230 }
231 
232 static void __exit orinoco_tmd_exit(void)
233 {
234         pci_unregister_driver(&orinoco_tmd_driver);
235 }
236 
237 module_init(orinoco_tmd_init);
238 module_exit(orinoco_tmd_exit);
239 
240 /*
241  * Local variables:
242  *  c-indent-level: 8
243  *  c-basic-offset: 8
244  *  tab-width: 8
245  * End:
246  */
247 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us