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 for (index
= 0; index
< PCI_BUS_NUM_RESOURCES
; index
++) {
51 res
= bus
->resource
[index
];
52 if (res
&& (res
->flags
& IORESOURCE_MEM
) &&
53 !(res
->flags
& IORESOURCE_PREFETCH
)) {
54 out
+= sprintf(out
, "start = %8.8llx, "
56 (unsigned long long)res
->start
,
57 (unsigned long long)(res
->end
- res
->start
));
60 out
+= sprintf(out
, "Free resources: prefetchable memory\n");
61 for (index
= 0; index
< PCI_BUS_NUM_RESOURCES
; index
++) {
62 res
= bus
->resource
[index
];
63 if (res
&& (res
->flags
& IORESOURCE_MEM
) &&
64 (res
->flags
& IORESOURCE_PREFETCH
)) {
65 out
+= sprintf(out
, "start = %8.8llx, "
67 (unsigned long long)res
->start
,
68 (unsigned long long)(res
->end
- res
->start
));
71 out
+= sprintf(out
, "Free resources: IO\n");
72 for (index
= 0; index
< PCI_BUS_NUM_RESOURCES
; index
++) {
73 res
= bus
->resource
[index
];
74 if (res
&& (res
->flags
& IORESOURCE_IO
)) {
75 out
+= sprintf(out
, "start = %8.8llx, "
77 (unsigned long long)res
->start
,
78 (unsigned long long)(res
->end
- res
->start
));
81 out
+= sprintf(out
, "Free resources: bus numbers\n");
82 for (busnr
= bus
->secondary
; busnr
<= bus
->subordinate
; busnr
++) {
83 if (!pci_find_bus(pci_domain_nr(bus
), busnr
))
86 if (busnr
< bus
->subordinate
)
87 out
+= sprintf(out
, "start = %8.8x, length = %8.8x\n",
88 busnr
, (bus
->subordinate
- busnr
));
92 static DEVICE_ATTR (ctrl
, S_IRUGO
, show_ctrl
, NULL
);
94 void shpchp_create_ctrl_files (struct controller
*ctrl
)
96 device_create_file (&ctrl
->pci_dev
->dev
, &dev_attr_ctrl
);
99 void shpchp_remove_ctrl_files(struct controller
*ctrl
)
101 device_remove_file(&ctrl
->pci_dev
->dev
, &dev_attr_ctrl
);
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