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/*
* 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/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/workqueue.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 = %8.8lx, length = %8.8lx\n",
res->start, (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 = %8.8lx, length = %8.8lx\n",
res->start, (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 = %8.8lx, length = %8.8lx\n",
res->start, (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);
static ssize_t show_dev (struct device *dev, struct device_attribute *attr, char *buf)
{
struct pci_dev *pdev, *fdev;
struct controller *ctrl;
char * out = buf;
int index;
struct resource *res;
struct pci_func *new_slot;
struct slot *slot;
pdev = container_of (dev, struct pci_dev, dev);
ctrl = pci_get_drvdata(pdev);
slot=ctrl->slot;
while (slot) {
new_slot = shpchp_slot_find(slot->bus, slot->device, 0);
if (!new_slot)
break;
fdev = new_slot->pci_dev;
if (!fdev)
break;
out += sprintf(out, "assigned resources: memory\n");
for (index=0; index <= PCI_NUM_RESOURCES; index++) {
res = &(fdev->resource[index]);
if (res && (res->flags & IORESOURCE_MEM) &&
!(res->flags & IORESOURCE_PREFETCH)) {
out += sprintf(out,
"start = %8.8lx, length = %8.8lx\n",
res->start, (res->end - res->start));
}
}
out += sprintf(out, "assigned resources: prefetchable memory\n");
for (index=0; index <= PCI_NUM_RESOURCES; index++) {
res = &(fdev->resource[index]);
if (res && (res->flags & (IORESOURCE_MEM |
IORESOURCE_PREFETCH))) {
out += sprintf(out,
"start = %8.8lx, length = %8.8lx\n",
res->start, (res->end - res->start));
}
}
out += sprintf(out, "assigned resources: IO\n");
for (index=0; index <= PCI_NUM_RESOURCES; index++) {
res = &(fdev->resource[index]);
if (res && (res->flags & IORESOURCE_IO)) {
out += sprintf(out,
"start = %8.8lx, length = %8.8lx\n",
res->start, (res->end - res->start));
}
}
out += sprintf(out, "assigned resources: bus numbers\n");
if (fdev->subordinate)
out += sprintf(out, "start = %8.8x, length = %8.8x\n",
fdev->subordinate->secondary,
(fdev->subordinate->subordinate -
fdev->subordinate->secondary));
else
out += sprintf(out, "start = %8.8x, length = %8.8x\n",
fdev->bus->number, 1);
slot=slot->next;
}
return out - buf;
}
static DEVICE_ATTR (dev, S_IRUGO, show_dev, NULL);
void shpchp_create_ctrl_files (struct controller *ctrl)
{
device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl);
device_create_file (&ctrl->pci_dev->dev, &dev_attr_dev);
}
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