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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; | |
49 | struct list_head tz_node; /* node in tz->thermal_instances */ | |
50 | struct list_head cdev_node; /* node in cdev->thermal_instances */ | |
51 | }; | |
52 | ||
80a26a5c ZR |
53 | int thermal_register_governor(struct thermal_governor *); |
54 | void thermal_unregister_governor(struct thermal_governor *); | |
55 | ||
56 | #ifdef CONFIG_THERMAL_GOV_STEP_WISE | |
57 | int thermal_gov_step_wise_register(void); | |
58 | void thermal_gov_step_wise_unregister(void); | |
59 | #else | |
60 | static inline int thermal_gov_step_wise_register(void) { return 0; } | |
61 | static inline void thermal_gov_step_wise_unregister(void) {} | |
62 | #endif /* CONFIG_THERMAL_GOV_STEP_WISE */ | |
63 | ||
64 | #ifdef CONFIG_THERMAL_GOV_FAIR_SHARE | |
65 | int thermal_gov_fair_share_register(void); | |
66 | void thermal_gov_fair_share_unregister(void); | |
67 | #else | |
68 | static inline int thermal_gov_fair_share_register(void) { return 0; } | |
69 | static inline void thermal_gov_fair_share_unregister(void) {} | |
70 | #endif /* CONFIG_THERMAL_GOV_FAIR_SHARE */ | |
71 | ||
72 | #ifdef CONFIG_THERMAL_GOV_USER_SPACE | |
73 | int thermal_gov_user_space_register(void); | |
74 | void thermal_gov_user_space_unregister(void); | |
75 | #else | |
76 | static inline int thermal_gov_user_space_register(void) { return 0; } | |
77 | static inline void thermal_gov_user_space_unregister(void) {} | |
78 | #endif /* CONFIG_THERMAL_GOV_USER_SPACE */ | |
79 | ||
3c2a0909 S |
80 | /* device tree support */ |
81 | #ifdef CONFIG_THERMAL_OF | |
82 | int of_parse_thermal_zones(void); | |
83 | void of_thermal_destroy_zones(void); | |
84 | #else | |
85 | static inline int of_parse_thermal_zones(void) { return 0; } | |
86 | static inline void of_thermal_destroy_zones(void) { } | |
87 | #endif | |
88 | ||
71350db4 | 89 | #endif /* __THERMAL_CORE_H__ */ |