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Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * cpuidle.h - The internal header file | |
3 | */ | |
4 | ||
5 | #ifndef __DRIVER_CPUIDLE_H | |
6 | #define __DRIVER_CPUIDLE_H | |
7 | ||
8 | /* For internal use only */ | |
9 | extern struct cpuidle_governor *cpuidle_curr_governor; | |
10 | extern struct list_head cpuidle_governors; | |
11 | extern struct list_head cpuidle_detected_devices; | |
12 | extern struct mutex cpuidle_lock; | |
13 | extern spinlock_t cpuidle_driver_lock; | |
14 | extern int cpuidle_disabled(void); | |
15 | extern int cpuidle_enter_state(struct cpuidle_device *dev, | |
16 | struct cpuidle_driver *drv, int next_state); | |
17 | ||
18 | /* idle loop */ | |
19 | extern void cpuidle_install_idle_handler(void); | |
20 | extern void cpuidle_uninstall_idle_handler(void); | |
21 | ||
22 | /* governors */ | |
23 | extern int cpuidle_switch_governor(struct cpuidle_governor *gov); | |
24 | ||
25 | /* sysfs */ | |
26 | ||
27 | struct device; | |
28 | ||
29 | extern int cpuidle_add_interface(struct device *dev); | |
30 | extern void cpuidle_remove_interface(struct device *dev); | |
31 | extern int cpuidle_add_device_sysfs(struct cpuidle_device *device); | |
32 | extern void cpuidle_remove_device_sysfs(struct cpuidle_device *device); | |
33 | extern int cpuidle_add_sysfs(struct cpuidle_device *dev); | |
34 | extern void cpuidle_remove_sysfs(struct cpuidle_device *dev); | |
35 | ||
36 | #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED | |
37 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state); | |
38 | int cpuidle_coupled_state_verify(struct cpuidle_driver *drv); | |
39 | int cpuidle_enter_state_coupled(struct cpuidle_device *dev, | |
40 | struct cpuidle_driver *drv, int next_state); | |
41 | int cpuidle_coupled_register_device(struct cpuidle_device *dev); | |
42 | void cpuidle_coupled_unregister_device(struct cpuidle_device *dev); | |
43 | #else | |
44 | static inline | |
45 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state) | |
46 | { | |
47 | return false; | |
48 | } | |
49 | ||
50 | static inline int cpuidle_coupled_state_verify(struct cpuidle_driver *drv) | |
51 | { | |
52 | return 0; | |
53 | } | |
54 | ||
55 | static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, | |
56 | struct cpuidle_driver *drv, int next_state) | |
57 | { | |
58 | return -1; | |
59 | } | |
60 | ||
61 | static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev) | |
62 | { | |
63 | return 0; | |
64 | } | |
65 | ||
66 | static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev) | |
67 | { | |
68 | } | |
69 | #endif | |
70 | ||
71 | #endif /* __DRIVER_CPUIDLE_H */ |