/*
* Compaq Hot Plug Controller Driver
*
* Copyright (C) 1995,2001 Compaq Computer Corporation
* Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2001 IBM Corp.
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Send feedback to <greg@kroah.com>
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/proc_fs.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include "../pci.h"
#include "cpqphp.h"
#include "cpqphp_nvram.h"
u8 cpqhp_nic_irq;
u8 cpqhp_disk_irq;
static u16 unused_IRQ;
/*
* detect_HRT_floating_pointer
*
* find the Hot Plug Resource Table in the specified region of memory.
*
*/
static void __iomem *detect_HRT_floating_pointer(void __iomem *begin, void __iomem *end)
{
void __iomem *fp;
void __iomem *endp;
u8 temp1, temp2, temp3, temp4;
int status = 0;
endp = (end - sizeof(struct hrt) + 1);
for (fp = begin; fp <= endp; fp += 16) {
temp1 = readb(fp + SIG0);
temp2 = readb(fp + SIG1);
temp3 = readb(fp + SIG2);
temp4 = readb(fp + SIG3);
if (temp1 == '$' &&
temp2 == 'H' &&
temp3 == 'R' &&
temp4 == 'T') {
status = 1;
break;
}
}
if (!status)
fp = NULL;
dbg("Discovered Hotplug Resource Table at %p\n", fp);
return
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