projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 4f86d3a8 LB |
1 | /* |
| 2 | * cpuidle.h - The internal header file | |
| 3 | */ | |
| 4 | ||
| 5 | #ifndef __DRIVER_CPUIDLE_H | |
| 6 | #define __DRIVER_CPUIDLE_H | |
| 7 | ||
| 4f86d3a8 LB |
8 | /* For internal use only */ |
| 9 | extern struct cpuidle_governor *cpuidle_curr_governor; | |
| 4f86d3a8 LB |
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; | |
| 62027aea | 14 | extern int cpuidle_disabled(void); |
| 56cfbf74 CC |
15 | extern int cpuidle_enter_state(struct cpuidle_device *dev, |
| 16 | struct cpuidle_driver *drv, int next_state); | |
| 4f86d3a8 LB |
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 */ | |
| 8f3e9953 DL |
26 | |
| 27 | struct device; | |
| 28 | ||
| 8a25a2fd KS |
29 | extern int cpuidle_add_interface(struct device *dev); |
| 30 | extern void cpuidle_remove_interface(struct device *dev); | |
| bf4d1b5d DL |
31 | extern int cpuidle_add_device_sysfs(struct cpuidle_device *device); |
| 32 | extern void cpuidle_remove_device_sysfs(struct cpuidle_device *device); | |
| 1aef40e2 DL |
33 | extern int cpuidle_add_sysfs(struct cpuidle_device *dev); |
| 34 | extern void cpuidle_remove_sysfs(struct cpuidle_device *dev); | |
| 4f86d3a8 | 35 | |
| 4126c019 | 36 | #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED |
| 4c1ed5a6 | 37 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state); |
| abceaa9c | 38 | int cpuidle_coupled_state_verify(struct cpuidle_driver *drv); |
| 4126c019 CC |
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 | |
| 4c1ed5a6 XP |
44 | static inline |
| 45 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state) | |
| 4126c019 CC |
46 | { |
| 47 | return false; | |
| 48 | } | |
| 49 | ||
| abceaa9c XP |
50 | static inline int cpuidle_coupled_state_verify(struct cpuidle_driver *drv) |
| 51 | { | |
| 52 | return 0; | |
| 53 | } | |
| 54 | ||
| 4126c019 CC |
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 | ||
| 4f86d3a8 | 71 | #endif /* __DRIVER_CPUIDLE_H */ |