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gerrit-public.fairphone.software / kernel / msm-4.9 / bc1bb868dee469667b9de22a1fcdb2429411703b / . / drivers / cpuidle / cpuidle.h
blob: f87f399b0540c139dad8e58134ebd21e925d4fd9 [file] [log] [blame]
Len Brown4f86d3a2007-10-03 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
Len Brown4f86d3a2007-10-03 18:58:00 -0400[diff] [blame]8/* For internal use only */
9extern struct cpuidle_governor *cpuidle_curr_governor;
Len Brown4f86d3a2007-10-03 18:58:00 -0400[diff] [blame]10extern struct list_head cpuidle_governors;
11extern struct list_head cpuidle_detected_devices;
12extern struct mutex cpuidle_lock;
13extern spinlock_t cpuidle_driver_lock;
Len Brown62027ae2011-04-01 18:13:10 -0400[diff] [blame]14extern int cpuidle_disabled(void);
Colin Cross56cfbf72012-05-07 17:57:39 -0700[diff] [blame]15extern int cpuidle_enter_state(struct cpuidle_device *dev,
16 struct cpuidle_driver *drv, int next_state);
Len Brown4f86d3a2007-10-03 18:58:00 -0400[diff] [blame]17
18/* idle loop */
19extern void cpuidle_install_idle_handler(void);
20extern void cpuidle_uninstall_idle_handler(void);
21
22/* governors */
23extern int cpuidle_switch_governor(struct cpuidle_governor *gov);
24
25/* sysfs */
Daniel Lezcano8f3e9952012-10-31 01:09:02 +0100[diff] [blame]26
27struct device;
28
Kay Sievers8a25a2f2011-12-21 14:29:42 -0800[diff] [blame]29extern int cpuidle_add_interface(struct device *dev);
30extern void cpuidle_remove_interface(struct device *dev);
Daniel Lezcanobf4d1b52012-10-31 16:44:48 +0000[diff] [blame]31extern int cpuidle_add_device_sysfs(struct cpuidle_device *device);
32extern void cpuidle_remove_device_sysfs(struct cpuidle_device *device);
Daniel Lezcano1aef40e2012-10-26 12:26:24 +0200[diff] [blame]33extern int cpuidle_add_sysfs(struct cpuidle_device *dev);
34extern void cpuidle_remove_sysfs(struct cpuidle_device *dev);
Len Brown4f86d3a2007-10-03 18:58:00 -0400[diff] [blame]35
Colin Cross4126c012012-05-07 17:57:41 -0700[diff] [blame]36#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
Xunlei Pang4c1ed5a2015-08-04 13:48:56 +0800[diff] [blame]37bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state);
Xunlei Pangabceaa92015-08-31 11:34:05 +0800[diff] [blame]38int cpuidle_coupled_state_verify(struct cpuidle_driver *drv);
Colin Cross4126c012012-05-07 17:57:41 -0700[diff] [blame]39int cpuidle_enter_state_coupled(struct cpuidle_device *dev,
40 struct cpuidle_driver *drv, int next_state);
41int cpuidle_coupled_register_device(struct cpuidle_device *dev);
42void cpuidle_coupled_unregister_device(struct cpuidle_device *dev);
43#else
Xunlei Pang4c1ed5a2015-08-04 13:48:56 +0800[diff] [blame]44static inline
45bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state)
Colin Cross4126c012012-05-07 17:57:41 -0700[diff] [blame]46{
47 return false;
48}
49
Xunlei Pangabceaa92015-08-31 11:34:05 +0800[diff] [blame]50static inline int cpuidle_coupled_state_verify(struct cpuidle_driver *drv)
51{
52 return 0;
53}
54
Colin Cross4126c012012-05-07 17:57:41 -0700[diff] [blame]55static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev,
56 struct cpuidle_driver *drv, int next_state)
57{
58 return -1;
59}
60
61static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev)
62{
63 return 0;
64}
65
66static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev)
67{
68}
69#endif
70
Len Brown4f86d3a2007-10-03 18:58:00 -0400[diff] [blame]71#endif /* __DRIVER_CPUIDLE_H */