LXR linux/drivers/net/arcnet/com20020-pci.c

   1/*
   2 * Linux ARCnet driver - COM20020 PCI support
   3 * Contemporary Controls PCI20 and SOHARD SH-ARC PCI
   4 * 
   5 * Written 1994-1999 by Avery Pennarun,
   6 *    based on an ISA version by David Woodhouse.
   7 * Written 1999-2000 by Martin Mares <mj@ucw.cz>.
   8 * Derived from skeleton.c by Donald Becker.
   9 *
  10 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
  11 *  for sponsoring the further development of this driver.
  12 *
  13 * **********************
  14 *
  15 * The original copyright of skeleton.c was as follows:
  16 *
  17 * skeleton.c Written 1993 by Donald Becker.
  18 * Copyright 1993 United States Government as represented by the
  19 * Director, National Security Agency.  This software may only be used
  20 * and distributed according to the terms of the GNU General Public License as
  21 * modified by SRC, incorporated herein by reference.
  22 *
  23 * **********************
  24 *
  25 * For more details, see drivers/net/arcnet.c
  26 *
  27 * **********************
  28 */
  29#include <linux/module.h>
  30#include <linux/moduleparam.h>
  31#include <linux/kernel.h>
  32#include <linux/types.h>
  33#include <linux/ioport.h>
  34#include <linux/errno.h>
  35#include <linux/netdevice.h>
  36#include <linux/init.h>
  37#include <linux/interrupt.h>
  38#include <linux/pci.h>
  39#include <linux/arcdevice.h>
  40#include <linux/com20020.h>
  41
  42#include <asm/io.h>
  43
  44
  45#define VERSION "arcnet: COM20020 PCI support\n"
  46
  47/* Module parameters */
  48
  49static int node;
  50static char device[9];          /* use eg. device="arc1" to change name */
  51static int timeout = 3;
  52static int backplane;
  53static int clockp;
  54static int clockm;
  55
  56module_param(node, int, 0);
  57module_param_string(device, device, sizeof(device), 0);
  58module_param(timeout, int, 0);
  59module_param(backplane, int, 0);
  60module_param(clockp, int, 0);
  61module_param(clockm, int, 0);
  62MODULE_LICENSE("GPL");
  63
  64static int com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
  65{
  66        struct net_device *dev;
  67        struct arcnet_local *lp;
  68        int ioaddr, err;
  69
  70        if (pci_enable_device(pdev))
  71                return -EIO;
  72        dev = alloc_arcdev(device);
  73        if (!dev)
  74                return -ENOMEM;
  75
  76        dev->netdev_ops = &com20020_netdev_ops;
  77
  78        lp = netdev_priv(dev);
  79
  80        pci_set_drvdata(pdev, dev);
  81
  82        // SOHARD needs PCI base addr 4
  83        if (pdev->vendor==0x10B5) {
  84                BUGMSG(D_NORMAL, "SOHARD\n");
  85                ioaddr = pci_resource_start(pdev, 4);
  86        }
  87        else {
  88                BUGMSG(D_NORMAL, "Contemporary Controls\n");
  89                ioaddr = pci_resource_start(pdev, 2);
  90        }
  91
  92        if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) {
  93                BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
  94                       ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
  95                err = -EBUSY;
  96                goto out_dev;
  97        }
  98
  99        // Dummy access after Reset
 100        // ARCNET controller needs this access to detect bustype
 101        outb(0x00,ioaddr+1);
 102        inb(ioaddr+1);
 103
 104        dev->base_addr = ioaddr;
 105        dev->irq = pdev->irq;
 106        dev->dev_addr[0] = node;
 107        lp->card_name = "PCI COM20020";
 108        lp->card_flags = id->driver_data;
 109        lp->backplane = backplane;
 110        lp->clockp = clockp & 7;
 111        lp->clockm = clockm & 3;
 112        lp->timeout = timeout;
 113        lp->hw.owner = THIS_MODULE;
 114
 115        if (ASTATUS() == 0xFF) {
 116                BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
 117                       "but seems empty!\n", ioaddr);
 118                err = -EIO;
 119                goto out_port;
 120        }
 121        if (com20020_check(dev)) {
 122                err = -EIO;
 123                goto out_port;
 124        }
 125
 126        if ((err = com20020_found(dev, IRQF_SHARED)) != 0)
 127                goto out_port;
 128
 129        return 0;
 130
 131out_port:
 132        release_region(ioaddr, ARCNET_TOTAL_SIZE);
 133out_dev:
 134        free_netdev(dev);
 135        return err;
 136}
 137
 138static void com20020pci_remove(struct pci_dev *pdev)
 139{
 140        struct net_device *dev = pci_get_drvdata(pdev);
 141        unregister_netdev(dev);
 142        free_irq(dev->irq, dev);
 143        release_region(dev->base_addr, ARCNET_TOTAL_SIZE);
 144        free_netdev(dev);
 145}
 146
 147static DEFINE_PCI_DEVICE_TABLE(com20020pci_id_table) = {
 148        { 0x1571, 0xa001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 149        { 0x1571, 0xa002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 150        { 0x1571, 0xa003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 151        { 0x1571, 0xa004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 152        { 0x1571, 0xa005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 153        { 0x1571, 0xa006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 154        { 0x1571, 0xa007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 155        { 0x1571, 0xa008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 156        { 0x1571, 0xa009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 157        { 0x1571, 0xa00a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 158        { 0x1571, 0xa00b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 159        { 0x1571, 0xa00c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 160        { 0x1571, 0xa00d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 161        { 0x1571, 0xa00e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_IS_5MBIT },
 162        { 0x1571, 0xa201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 163        { 0x1571, 0xa202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 164        { 0x1571, 0xa203, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 165        { 0x1571, 0xa204, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 166        { 0x1571, 0xa205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 167        { 0x1571, 0xa206, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 168        { 0x10B5, 0x9030, 0x10B5,     0x2978,     0, 0, ARC_CAN_10MBIT },
 169        { 0x10B5, 0x9050, 0x10B5,     0x2273,     0, 0, ARC_CAN_10MBIT },
 170        { 0x14BA, 0x6000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 171        { 0x10B5, 0x2200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ARC_CAN_10MBIT },
 172        {0,}
 173};
 174
 175MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
 176
 177static struct pci_driver com20020pci_driver = {
 178        .name           = "com20020",
 179        .id_table       = com20020pci_id_table,
 180        .probe          = com20020pci_probe,
 181        .remove         = com20020pci_remove,
 182};
 183
 184static int __init com20020pci_init(void)
 185{
 186        BUGLVL(D_NORMAL) printk(VERSION);
 187        return pci_register_driver(&com20020pci_driver);
 188}
 189
 190static void __exit com20020pci_cleanup(void)
 191{
 192        pci_unregister_driver(&com20020pci_driver);
 193}
 194
 195module_init(com20020pci_init)
 196module_exit(com20020pci_cleanup)
 197