/* * cpuidle.h - The internal header file */ #ifndef __DRIVER_CPUIDLE_H #define __DRIVER_CPUIDLE_H #include <linux/device.h> /* For internal use only */ extern struct cpuidle_governor *cpuidle_curr_governor; extern struct list_head cpuidle_governors; extern struct list_head cpuidle_detected_devices; extern struct mutex cpuidle_lock; extern spinlock_t cpuidle_driver_lock; extern int cpuidle_disabled(void); extern int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv, int next_state); /* idle loop */ extern void cpuidle_install_idle_handler(void); extern void cpuidle_uninstall_idle_handler(void); /* governors */ extern int cpuidle_switch_governor(struct cpuidle_governor *gov); /* sysfs */ extern int cpuidle_add_interface(struct device *dev); extern void cpuidle_remove_interface(struct device *dev); extern int cpuidle_add_state_sysfs(struct cpuidle_device *device); extern void cpuidle_remove_state_sysfs(struct cpuidle_device *device); extern int cpuidle_add_sysfs(struct device *dev); extern void cpuidle_remove_sysfs(struct device *dev); #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED bool cpuidle_state_is_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int state); int cpuidle_enter_state_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int next_state); int cpuidle_coupled_register_device(struct cpuidle_device *dev); void cpuidle_coupled_unregister_device(struct cpuidle_device *dev); #else static inline bool cpuidle_state_is_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int state) { return false; } static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int next_state) { return -1; } static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev) { return 0; } static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev) { } #endif #endif /* __DRIVER_CPUIDLE_H */