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9a3df1f7 AS |
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 | ||
228c54ef DT |
28 | #include <linux/types.h> |
29 | ||
9a3df1f7 AS |
30 | #ifdef CONFIG_PM |
31 | ||
2430d12c AS |
32 | /* Changes to device_may_wakeup take effect on the next pm state change. |
33 | * | |
34 | * By default, most devices should leave wakeup disabled. The exceptions | |
35 | * are devices that everyone expects to be wakeup sources: keyboards, | |
36 | * power buttons, possibly network interfaces, etc. | |
9a3df1f7 | 37 | */ |
228c54ef | 38 | static inline void device_init_wakeup(struct device *dev, bool val) |
9a3df1f7 | 39 | { |
228c54ef | 40 | dev->power.can_wakeup = dev->power.should_wakeup = val; |
9a3df1f7 AS |
41 | } |
42 | ||
228c54ef | 43 | static inline void device_set_wakeup_capable(struct device *dev, bool capable) |
eb9d0fe4 | 44 | { |
228c54ef | 45 | dev->power.can_wakeup = capable; |
eb9d0fe4 RW |
46 | } |
47 | ||
228c54ef | 48 | static inline bool device_can_wakeup(struct device *dev) |
9a3df1f7 AS |
49 | { |
50 | return dev->power.can_wakeup; | |
51 | } | |
52 | ||
228c54ef | 53 | static inline void device_set_wakeup_enable(struct device *dev, bool enable) |
9a3df1f7 | 54 | { |
228c54ef | 55 | dev->power.should_wakeup = enable; |
9a3df1f7 AS |
56 | } |
57 | ||
228c54ef | 58 | static inline bool device_may_wakeup(struct device *dev) |
9a3df1f7 | 59 | { |
eb9d0fe4 | 60 | return dev->power.can_wakeup && dev->power.should_wakeup; |
9a3df1f7 AS |
61 | } |
62 | ||
63 | #else /* !CONFIG_PM */ | |
64 | ||
2430d12c | 65 | /* For some reason the following routines work even without CONFIG_PM */ |
228c54ef | 66 | static inline void device_init_wakeup(struct device *dev, bool val) |
9a3df1f7 | 67 | { |
228c54ef | 68 | dev->power.can_wakeup = val; |
9a3df1f7 AS |
69 | } |
70 | ||
228c54ef DT |
71 | static inline void device_set_wakeup_capable(struct device *dev, bool capable) |
72 | { | |
2430d12c | 73 | dev->power.can_wakeup = capable; |
228c54ef | 74 | } |
c300bd2f | 75 | |
228c54ef | 76 | static inline bool device_can_wakeup(struct device *dev) |
9a3df1f7 AS |
77 | { |
78 | return dev->power.can_wakeup; | |
79 | } | |
80 | ||
228c54ef DT |
81 | static inline void device_set_wakeup_enable(struct device *dev, bool enable) |
82 | { | |
83 | } | |
84 | ||
85 | static inline bool device_may_wakeup(struct device *dev) | |
86 | { | |
87 | return false; | |
88 | } | |
9a3df1f7 | 89 | |
9a3df1f7 AS |
90 | #endif /* !CONFIG_PM */ |
91 | ||
92 | #endif /* _LINUX_PM_WAKEUP_H */ |