projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5d30bf30 MA |
1 | /* |
| 2 | * Interface for power-management for ppc64 compliant platform | |
| 3 | * | |
| 4 | * Manish Ahuja <mahuja@us.ibm.com> | |
| 5 | * | |
| 6 | * Feb 2007 | |
| 7 | * | |
| 8 | * Copyright (C) 2007 IBM Corporation. | |
| 9 | * | |
| 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; version 2 of the License. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 22 | */ | |
| 23 | ||
| 24 | #include <linux/kobject.h> | |
| 25 | #include <linux/string.h> | |
| 26 | #include <linux/errno.h> | |
| 27 | #include <linux/init.h> | |
| 8e83e905 | 28 | #include <asm/machdep.h> |
| 5d30bf30 MA |
29 | |
| 30 | unsigned long rtas_poweron_auto; /* default and normal state is 0 */ | |
| 31 | ||
| 79393fc4 GKH |
32 | static ssize_t auto_poweron_show(struct kobject *kobj, |
| 33 | struct kobj_attribute *attr, char *buf) | |
| 5d30bf30 MA |
34 | { |
| 35 | return sprintf(buf, "%lu\n", rtas_poweron_auto); | |
| 36 | } | |
| 37 | ||
| 79393fc4 GKH |
38 | static ssize_t auto_poweron_store(struct kobject *kobj, |
| 39 | struct kobj_attribute *attr, | |
| 40 | const char *buf, size_t n) | |
| 5d30bf30 MA |
41 | { |
| 42 | int ret; | |
| 43 | unsigned long ups_restart; | |
| 44 | ret = sscanf(buf, "%lu", &ups_restart); | |
| 45 | ||
| 46 | if ((ret == 1) && ((ups_restart == 1) || (ups_restart == 0))){ | |
| 47 | rtas_poweron_auto = ups_restart; | |
| 48 | return n; | |
| 49 | } | |
| 50 | return -EINVAL; | |
| 51 | } | |
| 52 | ||
| 79393fc4 GKH |
53 | static struct kobj_attribute auto_poweron_attr = |
| 54 | __ATTR(auto_poweron, 0644, auto_poweron_show, auto_poweron_store); | |
| 5d30bf30 MA |
55 | |
| 56 | #ifndef CONFIG_PM | |
| d76e15fb | 57 | struct kobject *power_kobj; |
| 5d30bf30 MA |
58 | |
| 59 | static struct attribute *g[] = { | |
| 60 | &auto_poweron_attr.attr, | |
| 61 | NULL, | |
| 62 | }; | |
| 63 | ||
| 64 | static struct attribute_group attr_group = { | |
| 65 | .attrs = g, | |
| 66 | }; | |
| 67 | ||
| 68 | static int __init pm_init(void) | |
| 69 | { | |
| d76e15fb GKH |
70 | power_kobj = kobject_create_and_add("power", NULL); |
| 71 | if (!power_kobj) | |
| 039a5dcd | 72 | return -ENOMEM; |
| d76e15fb | 73 | return sysfs_create_group(power_kobj, &attr_group); |
| 5d30bf30 | 74 | } |
| 8e83e905 | 75 | machine_core_initcall(pseries, pm_init); |
| 5d30bf30 | 76 | #else |
| 5d30bf30 MA |
77 | static int __init apo_pm_init(void) |
| 78 | { | |
| 3d5d27c4 | 79 | return (sysfs_create_file(power_kobj, &auto_poweron_attr.attr)); |
| 5d30bf30 | 80 | } |
| 8e83e905 | 81 | machine_device_initcall(pseries, apo_pm_init); |
| 5d30bf30 | 82 | #endif |