drivers/net/wireless/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  * 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".
  35  *
  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
  39  * modes
  40  *
  41  * The actual driving is done by orinoco.c, this is just resource
  42  * allocation stuff.
  43  *
  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.
  48  *
  49  * Pheecom sells cards with the TMD chip as "ASIC version"
  50  */
  51
  52 #define DRIVER_NAME "orinoco_tmd"
  53 #define PFX DRIVER_NAME ": "
  54
  55 #include <linux/config.h>
  56
  57 #include <linux/module.h>
  58 #include <linux/kernel.h>
  59 #include <linux/init.h>
  60 #include <linux/sched.h>
  61 #include <linux/ptrace.h>
  62 #include <linux/slab.h>
  63 #include <linux/string.h>
  64 #include <linux/timer.h>
  65 #include <linux/ioport.h>
  66 #include <asm/uaccess.h>
  67 #include <asm/io.h>
  68 #include <asm/system.h>
  69 #include <linux/netdevice.h>
  70 #include <linux/if_arp.h>
  71 #include <linux/etherdevice.h>
  72 #include <linux/list.h>
  73 #include <linux/pci.h>
  74 #include <linux/fcntl.h>
  75
  76 #include <pcmcia/cisreg.h>
  77
  78 #include "hermes.h"
  79 #include "orinoco.h"
  80
  81 #define COR_VALUE       (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */
  82
  83 static int orinoco_tmd_init_one(struct pci_dev *pdev,
  84                                 const struct pci_device_id *ent)
  85 {
  86         int err = 0;
  87         u32 reg, addr;
  88         struct orinoco_private *priv = NULL;
  89         unsigned long pccard_ioaddr = 0;
  90         unsigned long pccard_iolen = 0;
  91         struct net_device *dev = NULL;
  92
  93         err = pci_enable_device(pdev);
  94         if (err)
  95                 return -EIO;
  96
  97         printk(KERN_DEBUG PFX "TMD setup\n");
  98         pccard_ioaddr = pci_resource_start(pdev, 2);
  99         pccard_iolen = pci_resource_len(pdev, 2);
 100         if (! request_region(pccard_ioaddr, pccard_iolen, DRIVER_NAME)) {
 101                 printk(KERN_ERR PFX "I/O resource at 0x%lx len 0x%lx busy\n",
 102                         pccard_ioaddr, pccard_iolen);
 103                 pccard_ioaddr = 0;
 104                 err = -EBUSY;
 105                 goto fail;
 106         }
 107         addr = pci_resource_start(pdev, 1);
 108         outb(COR_VALUE, addr);
 109         mdelay(1);
 110         reg = inb(addr);
 111         if (reg != COR_VALUE) {
 112                 printk(KERN_ERR PFX "Error setting TMD COR values %x should be %x\n", reg, COR_VALUE);
 113                 err = -EIO;
 114                 goto fail;
 115         }
 116
 117         /* Allocate network device */
 118         dev = alloc_orinocodev(0, NULL);
 119         if (! dev) {
 120                 err = -ENOMEM;
 121                 goto fail;
 122         }
 123
 124         priv = netdev_priv(dev);
 125         dev->base_addr = pccard_ioaddr;
 126         SET_MODULE_OWNER(dev);
 127         SET_NETDEV_DEV(dev, &pdev->dev);
 128
 129         printk(KERN_DEBUG PFX "Detected Orinoco/Prism2 TMD device "
 130                "at %s irq:%d, io addr:0x%lx\n", pci_name(pdev), pdev->irq,
 131                pccard_ioaddr);
 132
 133         hermes_struct_init(&(priv->hw), dev->base_addr,
 134                         HERMES_IO, HERMES_16BIT_REGSPACING);
 135         pci_set_drvdata(pdev, dev);
 136
 137         err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ,
 138                           dev->name, dev);
 139         if (err) {
 140                 printk(KERN_ERR PFX "Error allocating IRQ %d.\n",
 141                        pdev->irq);
 142                 err = -EBUSY;
 143                 goto fail;
 144         }
 145         dev->irq = pdev->irq;
 146
 147         err = register_netdev(dev);
 148         if (err)
 149                 goto fail;
 150
 151         return 0;
 152
 153  fail:
 154         printk(KERN_DEBUG PFX "init_one(), FAIL!\n");
 155
 156         if (dev) {
 157                 if (dev->irq)
 158                         free_irq(dev->irq, dev);
 159
 160                 free_netdev(dev);
 161         }
 162
 163         if (pccard_ioaddr)
 164                 release_region(pccard_ioaddr, pccard_iolen);
 165
 166         pci_disable_device(pdev);
 167
 168         return err;
 169 }
 170
 171 static void __devexit orinoco_tmd_remove_one(struct pci_dev *pdev)
 172 {
 173         struct net_device *dev = pci_get_drvdata(pdev);
 174
 175         BUG_ON(! dev);
 176
 177         unregister_netdev(dev);
 178
 179         if (dev->irq)
 180                 free_irq(dev->irq, dev);
 181
 182         pci_set_drvdata(pdev, NULL);
 183
 184         free_netdev(dev);
 185
 186         release_region(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
 187
 188         pci_disable_device(pdev);
 189 }
 190
 191
 192 static struct pci_device_id orinoco_tmd_pci_id_table[] = {
 193         {0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,},      /* NDC and OEMs, e.g. pheecom */
 194         {0,},
 195 };
 196
 197 MODULE_DEVICE_TABLE(pci, orinoco_tmd_pci_id_table);
 198
 199 static struct pci_driver orinoco_tmd_driver = {
 200         .name           = DRIVER_NAME,
 201         .id_table       = orinoco_tmd_pci_id_table,
 202         .probe          = orinoco_tmd_init_one,
 203         .remove         = __devexit_p(orinoco_tmd_remove_one),
 204 };
 205
 206 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
 207         " (Joerg Dorchain <joerg@dorchain.net>)";
 208 MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>");
 209 MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge");
 210 MODULE_LICENSE("Dual MPL/GPL");
 211
 212 static int __init orinoco_tmd_init(void)
 213 {
 214         printk(KERN_DEBUG "%s\n", version);
 215         return pci_module_init(&orinoco_tmd_driver);
 216 }
 217
 218 static void __exit orinoco_tmd_exit(void)
 219 {
 220         pci_unregister_driver(&orinoco_tmd_driver);
 221         current->state = TASK_UNINTERRUPTIBLE;
 222         schedule_timeout(HZ);
 223 }
 224
 225 module_init(orinoco_tmd_init);
 226 module_exit(orinoco_tmd_exit);
 227
 228 /*
 229  * Local variables:
 230  *  c-indent-level: 8
 231  *  c-basic-offset: 8
 232  *  tab-width: 8
 233  * End:
 234  */