linux/drivers/eisa/pci_eisa.c
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   1/*
   2 * Minimalist driver for a generic PCI-to-EISA bridge.
   3 *
   4 * (C) 2003 Marc Zyngier <maz@wild-wind.fr.eu.org>
   5 *
   6 * This code is released under the GPL version 2.
   7 *
   8 * Ivan Kokshaysky <ink@jurassic.park.msu.ru> :
   9 * Generalisation from i82375 to PCI_CLASS_BRIDGE_EISA.
  10 */
  11
  12#include <linux/kernel.h>
  13#include <linux/device.h>
  14#include <linux/eisa.h>
  15#include <linux/pci.h>
  16#include <linux/module.h>
  17#include <linux/init.h>
  18
  19/* There is only *one* pci_eisa device per machine, right ? */
  20static struct eisa_root_device pci_eisa_root;
  21
  22static int __init pci_eisa_init(struct pci_dev *pdev,
  23                                const struct pci_device_id *ent)
  24{
  25        int rc;
  26
  27        if ((rc = pci_enable_device (pdev))) {
  28                printk (KERN_ERR "pci_eisa : Could not enable device %s\n",
  29                        pci_name(pdev));
  30                return rc;
  31        }
  32
  33        pci_eisa_root.dev              = &pdev->dev;
  34        pci_eisa_root.res              = pdev->bus->resource[0];
  35        pci_eisa_root.bus_base_addr    = pdev->bus->resource[0]->start;
  36        pci_eisa_root.slots            = EISA_MAX_SLOTS;
  37        pci_eisa_root.dma_mask         = pdev->dma_mask;
  38        dev_set_drvdata(pci_eisa_root.dev, &pci_eisa_root);
  39
  40        if (eisa_root_register (&pci_eisa_root)) {
  41                printk (KERN_ERR "pci_eisa : Could not register EISA root\n");
  42                return -1;
  43        }
  44
  45        return 0;
  46}
  47
  48static struct pci_device_id pci_eisa_pci_tbl[] = {
  49        { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
  50          PCI_CLASS_BRIDGE_EISA << 8, 0xffff00, 0 },
  51        { 0, }
  52};
  53
  54static struct pci_driver __refdata pci_eisa_driver = {
  55        .name           = "pci_eisa",
  56        .id_table       = pci_eisa_pci_tbl,
  57        .probe          = pci_eisa_init,
  58};
  59
  60static int __init pci_eisa_init_module (void)
  61{
  62        return pci_register_driver (&pci_eisa_driver);
  63}
  64
  65device_initcall(pci_eisa_init_module);
  66MODULE_DEVICE_TABLE(pci, pci_eisa_pci_tbl);
  67
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