2 * Compaq Hot Plug Controller Driver
4 * Copyright (c) 1995,2001 Compaq Computer Corporation
5 * Copyright (c) 2001,2003 Greg Kroah-Hartman (greg@kroah.com)
6 * Copyright (c) 2001 IBM Corp.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or (at
13 * your option) any later version.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
18 * NON INFRINGEMENT. See the GNU General Public License for more
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 * Send feedback to <greg@kroah.com>
29 #include <linux/module.h>
30 #include <linux/kernel.h>
31 #include <linux/types.h>
32 #include <linux/pci.h>
36 /* A few routines that create sysfs entries for the hot plug controller */
38 static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf)
46 pdev = container_of (dev, struct pci_dev, dev);
47 bus = pdev->subordinate;
49 out += sprintf(buf, "Free resources: memory\n");
50 pci_bus_for_each_resource(bus, res, index) {
51 if (res && (res->flags & IORESOURCE_MEM) &&
52 !(res->flags & IORESOURCE_PREFETCH)) {
53 out += sprintf(out, "start = %8.8llx, length = %8.8llx\n",
54 (unsigned long long)res->start,
55 (unsigned long long)resource_size(res));
58 out += sprintf(out, "Free resources: prefetchable memory\n");
59 pci_bus_for_each_resource(bus, res, index) {
60 if (res && (res->flags & IORESOURCE_MEM) &&
61 (res->flags & IORESOURCE_PREFETCH)) {
62 out += sprintf(out, "start = %8.8llx, length = %8.8llx\n",
63 (unsigned long long)res->start,
64 (unsigned long long)resource_size(res));
67 out += sprintf(out, "Free resources: IO\n");
68 pci_bus_for_each_resource(bus, res, index) {
69 if (res && (res->flags & IORESOURCE_IO)) {
70 out += sprintf(out, "start = %8.8llx, length = %8.8llx\n",
71 (unsigned long long)res->start,
72 (unsigned long long)resource_size(res));
75 out += sprintf(out, "Free resources: bus numbers\n");
76 for (busnr = bus->busn_res.start; busnr <= bus->busn_res.end; busnr++) {
77 if (!pci_find_bus(pci_domain_nr(bus), busnr))
80 if (busnr < bus->busn_res.end)
81 out += sprintf(out, "start = %8.8x, length = %8.8x\n",
82 busnr, (int)(bus->busn_res.end - busnr));
86 static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL);
88 int shpchp_create_ctrl_files (struct controller *ctrl)
90 return device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl);
93 void shpchp_remove_ctrl_files(struct controller *ctrl)
95 device_remove_file(&ctrl->pci_dev->dev, &dev_attr_ctrl);