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/*
* Interface for power-management for ppc64 compliant platform
*
* Manish Ahuja <mahuja@us.ibm.com>
*
* Feb 2007
*
* Copyright (C) 2007 IBM Corporation.
*
* 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; version 2 of the License.
*
* 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. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kobject.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <asm/machdep.h>
unsigned long rtas_poweron_auto; /* default and normal state is 0 */
static ssize_t auto_poweron_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "%lu\n", rtas_poweron_auto);
}
static ssize_t auto_poweron_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t n)
{
int ret;
unsigned long ups_restart;
ret = sscanf(buf, "%lu", &ups_restart);
if ((ret == 1) && ((ups_restart == 1) || (ups_restart == 0))){
rtas_poweron_auto = ups_restart;
return n;
}
return -EINVAL;
}
static struct kobj_attribute auto_poweron_attr =
__ATTR(auto_poweron, 0644, auto_poweron_show, auto_poweron_store);
#ifndef CONFIG_PM
struct kobject *power_kobj;
static struct attribute *g[] = {
&auto_poweron_attr.attr,
NULL,
};
static struct attribute_group attr_group = {
.attrs = g,
};
static int __init pm_init(void)
{
power_kobj = kobject_create_and_add("power", NULL);
if (!power_kobj)
return -ENOMEM;
return sysfs_create_group(power_kobj, &attr_group);
}
machine_core_initcall(pseries, pm_init);
#else
static int __init apo_pm_init(void)
{
return (sysfs_create_file(power_kobj, &auto_poweron_attr.attr));
}
machine_device_initcall(pseries, apo_pm_init);
#endif
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