|
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 */ |
|
33 static inline void device_init_wakeup(struct device *dev, int val) |
|
34 { |
|
35 dev->power.can_wakeup = dev->power.should_wakeup = !!val; |
|
36 } |
|
37 |
|
38 static inline void device_set_wakeup_capable(struct device *dev, int val) |
|
39 { |
|
40 dev->power.can_wakeup = !!val; |
|
41 } |
|
42 |
|
43 static inline int device_can_wakeup(struct device *dev) |
|
44 { |
|
45 return dev->power.can_wakeup; |
|
46 } |
|
47 |
|
48 static inline void device_set_wakeup_enable(struct device *dev, int val) |
|
49 { |
|
50 dev->power.should_wakeup = !!val; |
|
51 } |
|
52 |
|
53 static 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 */ |
|
61 static inline void device_init_wakeup(struct device *dev, int val) |
|
62 { |
|
63 dev->power.can_wakeup = !!val; |
|
64 } |
|
65 |
|
66 static inline void device_set_wakeup_capable(struct device *dev, int val) { } |
|
67 |
|
68 static 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 */ |