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Info about resources assigned to PCI devices is already available through sysfs and pci utilities. There's no need for shpchp to create another sysfs file to display the same information. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*
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* Compaq Hot Plug Controller Driver
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*
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* Copyright (c) 1995,2001 Compaq Computer Corporation
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* Copyright (c) 2001,2003 Greg Kroah-Hartman (greg@kroah.com)
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* Copyright (c) 2001 IBM Corp.
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Send feedback to <greg@kroah.com>
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*
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/proc_fs.h>
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#include <linux/workqueue.h>
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#include <linux/pci.h>
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#include "shpchp.h"
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/* A few routines that create sysfs entries for the hot plug controller */
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static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct pci_dev *pdev;
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char * out = buf;
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int index, busnr;
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struct resource *res;
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struct pci_bus *bus;
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pdev = container_of (dev, struct pci_dev, dev);
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bus = pdev->subordinate;
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out += sprintf(buf, "Free resources: memory\n");
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for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
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res = bus->resource[index];
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if (res && (res->flags & IORESOURCE_MEM) &&
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!(res->flags & IORESOURCE_PREFETCH)) {
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out += sprintf(out, "start = %8.8lx, length = %8.8lx\n",
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res->start, (res->end - res->start));
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}
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}
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out += sprintf(out, "Free resources: prefetchable memory\n");
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for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
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res = bus->resource[index];
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if (res && (res->flags & IORESOURCE_MEM) &&
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(res->flags & IORESOURCE_PREFETCH)) {
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out += sprintf(out, "start = %8.8lx, length = %8.8lx\n",
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res->start, (res->end - res->start));
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}
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}
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out += sprintf(out, "Free resources: IO\n");
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for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
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res = bus->resource[index];
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if (res && (res->flags & IORESOURCE_IO)) {
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out += sprintf(out, "start = %8.8lx, length = %8.8lx\n",
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res->start, (res->end - res->start));
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}
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}
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out += sprintf(out, "Free resources: bus numbers\n");
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for (busnr = bus->secondary; busnr <= bus->subordinate; busnr++) {
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if (!pci_find_bus(pci_domain_nr(bus), busnr))
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break;
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}
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if (busnr < bus->subordinate)
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out += sprintf(out, "start = %8.8x, length = %8.8x\n",
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busnr, (bus->subordinate - busnr));
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return out - buf;
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}
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static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL);
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void shpchp_create_ctrl_files (struct controller *ctrl)
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{
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device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl);
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}
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