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/*
* Compaq Hot Plug Controller Driver
*
* Copyright (c) 1995,2001 Compaq Computer Corporation
* Copyright (c) 2001 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/pci.h>
#include "cpqphp.h"
static struct proc_dir_entry *ctrl_proc_root;
/* A few routines that create proc entries for the hot plug controller */
static int read_ctrl (char *buf, char **start, off_t offset, int len, int *eof, void *data)
{
struct controller *ctrl = (struct controller *)data;
char * out = buf;
int index;
struct pci_resource *res;
if (offset > 0) return 0; /* no partial requests */
len = 0;
*eof = 1;
out += sprintf(out, "hot plug ctrl Info Page\n");
out += sprintf(out, "bus = %d, device = %d, function = %d\n",ctrl->bus,
ctrl->device, ctrl->function);
out += sprintf(out, "Free resources: memory\n");
index = 11;
res = ctrl->mem_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
out += sprintf(out, "Free resources: prefetchable memory\n");
index = 11;
res = ctrl->p_mem_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
out += sprintf(out, "Free resources: IO\n");
index = 11;
res = ctrl->io_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
out += sprintf(out, "Free resources: bus numbers\n");
index = 11;
res = ctrl->bus_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
*start = buf;
len = out-buf;
return len;
}
static int read_dev (char *buf, char **start, off_t offset, int len, int *eof, void *data)
{
struct controller *ctrl = (struct controller *)data;
char * out = buf;
int index;
struct pci_resource *res;
struct pci_func *new_slot;
struct slot *slot;
if (offset > 0) return 0; /* no partial requests */
len = 0;
*eof = 1;
out += sprintf(out, "hot plug ctrl Info Page\n");
out += sprintf(out, "bus = %d, device = %d, function = %d\n",ctrl->bus,
ctrl->device, ctrl->function);
slot=ctrl->slot;
while (slot) {
new_slot = cpqhp_slot_find(slot->bus, slot->device, 0);
out += sprintf(out, "assigned resources: memory\n");
index = 11;
res = new_slot->mem_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
out += sprintf(out, "assigned resources: prefetchable memory\n");
index = 11;
res = new_slot->p_mem_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
out += sprintf(out, "assigned resources: IO\n");
index = 11;
res = new_slot->io_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
out += sprintf(out, "assigned resources: bus numbers\n");
index = 11;
res = new_slot->bus_head;
while (res && index--) {
out += sprintf(out, "start = %8.8x, length = %8.8x\n", res->base, res->length);
res = res->next;
}
slot=slot->next;
}
*start = buf;
len = out-buf;
return len;
}
int cpqhp_proc_create_ctrl (struct controller *ctrl)
{
strcpy(ctrl->proc_name, "hpca");
ctrl->proc_name[3] = 'a' + ctrl->bus;
ctrl->proc_entry = create_proc_entry(ctrl->proc_name, S_IFREG | S_IRUGO, ctrl_proc_root);
ctrl->proc_entry->data = ctrl;
ctrl->proc_entry->read_proc = &read_ctrl;
strcpy(ctrl->proc_name2, "slot_a");
ctrl->proc_name2[5] = 'a' + ctrl->bus;
ctrl->proc_entry2 = create_proc_entry(ctrl->proc_name2, S_IFREG | S_IRUGO, ctrl_proc_root);
ctrl->proc_entry2->data = ctrl;
ctrl->proc_entry2->read_proc = &read_dev;
return 0;
}
int cpqhp_proc_remove_ctrl (struct controller *ctrl)
{
if (ctrl->proc_entry)
remove_proc_entry(ctrl->proc_name, ctrl_proc_root);
if (ctrl->proc_entry2)
remove_proc_entry(ctrl->proc_name2, ctrl_proc_root);
return 0;
}
int cpqhp_proc_init_ctrl (void)
{
ctrl_proc_root = proc_mkdir("driver/hpc", NULL);
if (!ctrl_proc_root)
return -ENOMEM;
ctrl_proc_root->owner = THIS_MODULE;
return 0;
}
int cpqhp_proc_destroy_ctrl (void)
{
remove_proc_entry("hpc", proc_root_driver);
return 0;
}
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