| Len Brown | 4f86d3a | 2007-10-03 18:58:00 -0400 | [diff] [blame] | 1 | /* |
| 2 | * cpuidle.h - The internal header file |
| 3 | */ |
| 4 | |
| 5 | #ifndef __DRIVER_CPUIDLE_H |
| 6 | #define __DRIVER_CPUIDLE_H |
| 7 | |
| Kay Sievers | 8a25a2f | 2011-12-21 14:29:42 -0800 | [diff] [blame] | 8 | #include <linux/device.h> |
| Len Brown | 4f86d3a | 2007-10-03 18:58:00 -0400 | [diff] [blame] | 9 | |
| 10 | /* For internal use only */ |
| 11 | extern struct cpuidle_governor *cpuidle_curr_governor; |
| Len Brown | 4f86d3a | 2007-10-03 18:58:00 -0400 | [diff] [blame] | 12 | extern struct list_head cpuidle_governors; |
| 13 | extern struct list_head cpuidle_detected_devices; |
| 14 | extern struct mutex cpuidle_lock; |
| 15 | extern spinlock_t cpuidle_driver_lock; |
| Len Brown | 62027ae | 2011-04-01 18:13:10 -0400 | [diff] [blame] | 16 | extern int cpuidle_disabled(void); |
| Colin Cross | 56cfbf7 | 2012-05-07 17:57:39 -0700 | [diff] [blame] | 17 | extern int cpuidle_enter_state(struct cpuidle_device *dev, |
| 18 | struct cpuidle_driver *drv, int next_state); |
| Len Brown | 4f86d3a | 2007-10-03 18:58:00 -0400 | [diff] [blame] | 19 | |
| 20 | /* idle loop */ |
| 21 | extern void cpuidle_install_idle_handler(void); |
| 22 | extern void cpuidle_uninstall_idle_handler(void); |
| 23 | |
| 24 | /* governors */ |
| 25 | extern int cpuidle_switch_governor(struct cpuidle_governor *gov); |
| 26 | |
| 27 | /* sysfs */ |
| Kay Sievers | 8a25a2f | 2011-12-21 14:29:42 -0800 | [diff] [blame] | 28 | extern int cpuidle_add_interface(struct device *dev); |
| 29 | extern void cpuidle_remove_interface(struct device *dev); |
| Len Brown | 4f86d3a | 2007-10-03 18:58:00 -0400 | [diff] [blame] | 30 | extern int cpuidle_add_state_sysfs(struct cpuidle_device *device); |
| 31 | extern void cpuidle_remove_state_sysfs(struct cpuidle_device *device); |
| Kay Sievers | 8a25a2f | 2011-12-21 14:29:42 -0800 | [diff] [blame] | 32 | extern int cpuidle_add_sysfs(struct device *dev); |
| 33 | extern void cpuidle_remove_sysfs(struct device *dev); |
| Len Brown | 4f86d3a | 2007-10-03 18:58:00 -0400 | [diff] [blame] | 34 | |
| Colin Cross | 4126c01 | 2012-05-07 17:57:41 -0700 | [diff] [blame] | 35 | #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED |
| 36 | bool cpuidle_state_is_coupled(struct cpuidle_device *dev, |
| 37 | struct cpuidle_driver *drv, int state); |
| 38 | int cpuidle_enter_state_coupled(struct cpuidle_device *dev, |
| 39 | struct cpuidle_driver *drv, int next_state); |
| 40 | int cpuidle_coupled_register_device(struct cpuidle_device *dev); |
| 41 | void cpuidle_coupled_unregister_device(struct cpuidle_device *dev); |
| 42 | #else |
| 43 | static inline bool cpuidle_state_is_coupled(struct cpuidle_device *dev, |
| 44 | struct cpuidle_driver *drv, int state) |
| 45 | { |
| 46 | return false; |
| 47 | } |
| 48 | |
| 49 | static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, |
| 50 | struct cpuidle_driver *drv, int next_state) |
| 51 | { |
| 52 | return -1; |
| 53 | } |
| 54 | |
| 55 | static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev) |
| 56 | { |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev) |
| 61 | { |
| 62 | } |
| 63 | #endif |
| 64 | |
| Len Brown | 4f86d3a | 2007-10-03 18:58:00 -0400 | [diff] [blame] | 65 | #endif /* __DRIVER_CPUIDLE_H */ |