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71350db4 D |
1 | /* |
2 | * thermal_core.h | |
3 | * | |
4 | * Copyright (C) 2012 Intel Corp | |
5 | * Author: Durgadoss R <durgadoss.r@intel.com> | |
6 | * | |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; version 2 of the License. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
20 | * | |
21 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
22 | */ | |
23 | ||
24 | #ifndef __THERMAL_CORE_H__ | |
25 | #define __THERMAL_CORE_H__ | |
26 | ||
27 | #include <linux/device.h> | |
28 | #include <linux/thermal.h> | |
29 | ||
30 | /* Initial state of a cooling device during binding */ | |
31 | #define THERMAL_NO_TARGET -1UL | |
32 | ||
33 | /* | |
34 | * This structure is used to describe the behavior of | |
35 | * a certain cooling device on a certain trip point | |
36 | * in a certain thermal zone | |
37 | */ | |
38 | struct thermal_instance { | |
39 | int id; | |
40 | char name[THERMAL_NAME_LENGTH]; | |
41 | struct thermal_zone_device *tz; | |
42 | struct thermal_cooling_device *cdev; | |
43 | int trip; | |
44 | unsigned long upper; /* Highest cooling state for this trip point */ | |
45 | unsigned long lower; /* Lowest cooling state for this trip point */ | |
46 | unsigned long target; /* expected cooling state */ | |
47 | char attr_name[THERMAL_NAME_LENGTH]; | |
48 | struct device_attribute attr; | |
db916513 JM |
49 | char weight_attr_name[THERMAL_NAME_LENGTH]; |
50 | struct device_attribute weight_attr; | |
71350db4 D |
51 | struct list_head tz_node; /* node in tz->thermal_instances */ |
52 | struct list_head cdev_node; /* node in cdev->thermal_instances */ | |
6cd9e9f6 | 53 | unsigned int weight; /* The weight of the cooling device */ |
71350db4 D |
54 | }; |
55 | ||
80a26a5c ZR |
56 | int thermal_register_governor(struct thermal_governor *); |
57 | void thermal_unregister_governor(struct thermal_governor *); | |
58 | ||
59 | #ifdef CONFIG_THERMAL_GOV_STEP_WISE | |
60 | int thermal_gov_step_wise_register(void); | |
61 | void thermal_gov_step_wise_unregister(void); | |
62 | #else | |
63 | static inline int thermal_gov_step_wise_register(void) { return 0; } | |
64 | static inline void thermal_gov_step_wise_unregister(void) {} | |
65 | #endif /* CONFIG_THERMAL_GOV_STEP_WISE */ | |
66 | ||
67 | #ifdef CONFIG_THERMAL_GOV_FAIR_SHARE | |
68 | int thermal_gov_fair_share_register(void); | |
69 | void thermal_gov_fair_share_unregister(void); | |
70 | #else | |
71 | static inline int thermal_gov_fair_share_register(void) { return 0; } | |
72 | static inline void thermal_gov_fair_share_unregister(void) {} | |
73 | #endif /* CONFIG_THERMAL_GOV_FAIR_SHARE */ | |
74 | ||
e4dbf98f PF |
75 | #ifdef CONFIG_THERMAL_GOV_BANG_BANG |
76 | int thermal_gov_bang_bang_register(void); | |
77 | void thermal_gov_bang_bang_unregister(void); | |
78 | #else | |
79 | static inline int thermal_gov_bang_bang_register(void) { return 0; } | |
80 | static inline void thermal_gov_bang_bang_unregister(void) {} | |
81 | #endif /* CONFIG_THERMAL_GOV_BANG_BANG */ | |
82 | ||
80a26a5c ZR |
83 | #ifdef CONFIG_THERMAL_GOV_USER_SPACE |
84 | int thermal_gov_user_space_register(void); | |
85 | void thermal_gov_user_space_unregister(void); | |
86 | #else | |
87 | static inline int thermal_gov_user_space_register(void) { return 0; } | |
88 | static inline void thermal_gov_user_space_unregister(void) {} | |
89 | #endif /* CONFIG_THERMAL_GOV_USER_SPACE */ | |
90 | ||
6b775e87 JM |
91 | #ifdef CONFIG_THERMAL_GOV_POWER_ALLOCATOR |
92 | int thermal_gov_power_allocator_register(void); | |
93 | void thermal_gov_power_allocator_unregister(void); | |
94 | #else | |
95 | static inline int thermal_gov_power_allocator_register(void) { return 0; } | |
96 | static inline void thermal_gov_power_allocator_unregister(void) {} | |
97 | #endif /* CONFIG_THERMAL_GOV_POWER_ALLOCATOR */ | |
98 | ||
4e5e4705 EV |
99 | /* device tree support */ |
100 | #ifdef CONFIG_THERMAL_OF | |
101 | int of_parse_thermal_zones(void); | |
102 | void of_thermal_destroy_zones(void); | |
08dab66e | 103 | int of_thermal_get_ntrips(struct thermal_zone_device *); |
a9bf2cc4 | 104 | bool of_thermal_is_trip_valid(struct thermal_zone_device *, int); |
ebc3193a | 105 | const struct thermal_trip * |
ce8be778 | 106 | of_thermal_get_trip_points(struct thermal_zone_device *); |
4e5e4705 EV |
107 | #else |
108 | static inline int of_parse_thermal_zones(void) { return 0; } | |
109 | static inline void of_thermal_destroy_zones(void) { } | |
08dab66e LM |
110 | static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz) |
111 | { | |
112 | return 0; | |
113 | } | |
a9bf2cc4 LM |
114 | static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, |
115 | int trip) | |
116 | { | |
ce1d9491 | 117 | return false; |
a9bf2cc4 | 118 | } |
ebc3193a | 119 | static inline const struct thermal_trip * |
ce8be778 LM |
120 | of_thermal_get_trip_points(struct thermal_zone_device *tz) |
121 | { | |
122 | return NULL; | |
123 | } | |
4e5e4705 EV |
124 | #endif |
125 | ||
71350db4 | 126 | #endif /* __THERMAL_CORE_H__ */ |