pcibus_core.c

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/*
 * kernel_drivers/adi_buses/pci/pcibus_core.c
 *
 * Copyright (c) 2003-2004 Lukasz Dembinski <dembol@nasa.com.pl>
 * All Rights Reserved
 * 
 * Date:        2004/06
 * Author:      Lukasz Dembinski
 * Info:        pcibus_core.c core file
 * Contact:     mailto: <dembol@nasa.com.pl>
 *
 */

#include <agnix/agnix.h>
#include <agnix/adi/adi.h>
#include <agnix/list.h>
#include <agnix/spinlock.h>
#include <agnix/console.h>

#define MOD_NAME        "PCI: \t"

struct list_head pcibus_list;
struct list_head pcidev_list;
spinlock_t pcibus_list_lock;
spinlock_t pcidev_list_lock;

int pcibus_disable = 0;

int adi_pcibus_init(void)
{
    printk(MOD_NAME "initializing PCI bus\n");

    INIT_LIST_HEAD(&pcibus_list);
    INIT_LIST_HEAD(&pcidev_list);
    spin_lock_init(&pcibus_lock);
    spin_lock_init(&pcidev_lock);

    if (pcibus_ops_init() < 0) {
        printk(MOD_NAME "disabling PCI subsystem\n");
        return -1;
    }
    
    pcibus_scan_all();
    pcibus_irq_init();

    return 0;
}