/* * Compaq Hot Plug Controller Driver * * Copyright (c) 1995,2001 Compaq Computer Corporation * Copyright (c) 2001,2003 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/pci.h>#include "shpchp.h"/* A few routines that create sysfs entries for the hot plug controller */static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf){	struct pci_dev *pdev;	char * out = buf;	int index, busnr;	struct resource *res;	struct pci_bus *bus;	pdev = container_of (dev, struct pci_dev, dev);	bus = pdev->subordinate;	out += sprintf(buf, "Free resources: memory\n");	for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {		res = bus->resource[index];		if (res && (res->flags & IORESOURCE_MEM) &&				!(res->flags & IORESOURCE_PREFETCH)) {			out += sprintf(out, "start = %8.8llx, "					"length = %8.8llx\n",					(unsigned long long)res->start,					(unsigned long long)(res->end - res->start));		}	}	out += sprintf(out, "Free resources: prefetchable memory\n");	for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {		res = bus->resource[index];		if (res && (res->flags & IORESOURCE_MEM) &&			       (res->flags & IORESOURCE_PREFETCH)) {			out += sprintf(out, "start = %8.8llx, "					"length = %8.8llx\n",					(unsigned long long)res->start,					(unsigned long long)(res->end - res->start));		}	}	out += sprintf(out, "Free resources: IO\n");	for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {		res = bus->resource[index];		if (res && (res->flags & IORESOURCE_IO)) {			out += sprintf(out, "start = %8.8llx, "					"length = %8.8llx\n",					(unsigned long long)res->start,					(unsigned long long)(res->end - res->start));		}	}	out += sprintf(out, "Free resources: bus numbers\n");	for (busnr = bus->secondary; busnr <= bus->subordinate; busnr++) {		if (!pci_find_bus(pci_domain_nr(bus), busnr))			break;	}	if (busnr < bus->subordinate)		out += sprintf(out, "start = %8.8x, length = %8.8x\n",				busnr, (bus->subordinate - busnr));	return out - buf;}static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL);int __must_check shpchp_create_ctrl_files (struct controller *ctrl){	return device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl);}void shpchp_remove_ctrl_files(struct controller *ctrl){	device_remove_file(&ctrl->pci_dev->dev, &dev_attr_ctrl);}