Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * pm_wakeup.h - Power management wakeup interface
3 *
4 * Copyright (C) 2008 Alan Stern
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef _LINUX_PM_WAKEUP_H
22#define _LINUX_PM_WAKEUP_H
23
24#ifndef _DEVICE_H_
25# error "please don't include this file directly"
26#endif
27
28#ifdef CONFIG_PM
29
30/* changes to device_may_wakeup take effect on the next pm state change.
31 * by default, devices should wakeup if they can.
32 */
33static inline void device_init_wakeup(struct device *dev, int val)
34{
35 dev->power.can_wakeup = dev->power.should_wakeup = !!val;
36}
37
38static inline void device_set_wakeup_capable(struct device *dev, int val)
39{
40 dev->power.can_wakeup = !!val;
41}
42
43static inline int device_can_wakeup(struct device *dev)
44{
45 return dev->power.can_wakeup;
46}
47
48static inline void device_set_wakeup_enable(struct device *dev, int val)
49{
50 dev->power.should_wakeup = !!val;
51}
52
53static inline int device_may_wakeup(struct device *dev)
54{
55 return dev->power.can_wakeup && dev->power.should_wakeup;
56}
57
58#else /* !CONFIG_PM */
59
60/* For some reason the next two routines work even without CONFIG_PM */
61static inline void device_init_wakeup(struct device *dev, int val)
62{
63 dev->power.can_wakeup = !!val;
64}
65
66static inline void device_set_wakeup_capable(struct device *dev, int val) { }
67
68static inline int device_can_wakeup(struct device *dev)
69{
70 return dev->power.can_wakeup;
71}
72
73#define device_set_wakeup_enable(dev, val) do {} while (0)
74#define device_may_wakeup(dev) 0
75
76#endif /* !CONFIG_PM */
77
78#endif /* _LINUX_PM_WAKEUP_H */