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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | /* * thermal.h ($Revision: 0 $) * * Copyright (C) 2008 Intel Corp * Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com> * Copyright (C) 2008 Sujith Thomas <sujith.thomas@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_H__ #define __THERMAL_H__ #include <linux/idr.h> #include <linux/device.h> struct thermal_zone_device; struct thermal_cooling_device; struct thermal_zone_device_ops { int (*bind) (struct thermal_zone_device *, struct thermal_cooling_device *); int (*unbind) (struct thermal_zone_device *, struct thermal_cooling_device *); int (*get_temp) (struct thermal_zone_device *, char *); int (*get_mode) (struct thermal_zone_device *, char *); int (*set_mode) (struct thermal_zone_device *, const char *); int (*get_trip_type) (struct thermal_zone_device *, int, char *); int (*get_trip_temp) (struct thermal_zone_device *, int, char *); int (*get_crit_temp) (struct thermal_zone_device *, unsigned long *); }; struct thermal_cooling_device_ops { int (*get_max_state) (struct thermal_cooling_device *, char *); int (*get_cur_state) (struct thermal_cooling_device *, char *); int (*set_cur_state) (struct thermal_cooling_device *, unsigned int); }; #define THERMAL_TRIPS_NONE -1 #define THERMAL_MAX_TRIPS 12 #define THERMAL_NAME_LENGTH 20 struct thermal_cooling_device { int id; char type[THERMAL_NAME_LENGTH]; struct device device; void *devdata; struct thermal_cooling_device_ops *ops; struct list_head node; }; #define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \ ((long)t-2732+5)/10 : ((long)t-2732-5)/10) #define CELSIUS_TO_KELVIN(t) ((t)*10+2732) #if defined(CONFIG_THERMAL_HWMON) /* thermal zone devices with the same type share one hwmon device */ struct thermal_hwmon_device { char type[THERMAL_NAME_LENGTH]; struct device *device; int count; struct list_head tz_list; struct list_head node; }; struct thermal_hwmon_attr { struct device_attribute attr; char name[16]; }; #endif struct thermal_zone_device { int id; char type[THERMAL_NAME_LENGTH]; struct device device; void *devdata; int trips; struct thermal_zone_device_ops *ops; struct list_head cooling_devices; struct idr idr; struct mutex lock; /* protect cooling devices list */ struct list_head node; #if defined(CONFIG_THERMAL_HWMON) struct list_head hwmon_node; struct thermal_hwmon_device *hwmon; struct thermal_hwmon_attr temp_input; /* hwmon sys attr */ struct thermal_hwmon_attr temp_crit; /* hwmon sys attr */ #endif }; struct thermal_zone_device *thermal_zone_device_register(char *, int, void *, struct thermal_zone_device_ops *); void thermal_zone_device_unregister(struct thermal_zone_device *); int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, struct thermal_cooling_device *); int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, struct thermal_cooling_device *); struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, struct thermal_cooling_device_ops *); void thermal_cooling_device_unregister(struct thermal_cooling_device *); #endif /* __THERMAL_H__ */ |