| /* |
| * Interface for power-management for ppc64 compliant platform |
| * |
| * Manish Ahuja <[email protected]> |
| * |
| * 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> |
| |
| 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); |
| } |
| core_initcall(pm_init); |
| #else |
| static int __init apo_pm_init(void) |
| { |
| return (sysfs_create_file(power_kobj, &auto_poweron_attr.attr)); |
| } |
| __initcall(apo_pm_init); |
| #endif |
