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