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include/linux/thermal.h
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/* * 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> |
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#include <linux/workqueue.h> |
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struct thermal_zone_device; struct thermal_cooling_device; |
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enum thermal_device_mode { THERMAL_DEVICE_DISABLED = 0, THERMAL_DEVICE_ENABLED, }; enum thermal_trip_type { THERMAL_TRIP_ACTIVE = 0, THERMAL_TRIP_PASSIVE, THERMAL_TRIP_HOT, THERMAL_TRIP_CRITICAL, }; |
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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 *); |
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int (*get_temp) (struct thermal_zone_device *, unsigned long *); int (*get_mode) (struct thermal_zone_device *, enum thermal_device_mode *); int (*set_mode) (struct thermal_zone_device *, enum thermal_device_mode); int (*get_trip_type) (struct thermal_zone_device *, int, enum thermal_trip_type *); int (*get_trip_temp) (struct thermal_zone_device *, int, unsigned long *); |
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int (*get_crit_temp) (struct thermal_zone_device *, unsigned long *); |
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int (*notify) (struct thermal_zone_device *, int, enum thermal_trip_type); |
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}; struct thermal_cooling_device_ops { |
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int (*get_max_state) (struct thermal_cooling_device *, unsigned long *); int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *); int (*set_cur_state) (struct thermal_cooling_device *, unsigned long); |
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}; #define THERMAL_TRIPS_NONE -1 |
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#define THERMAL_MAX_TRIPS 12 |
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#define THERMAL_NAME_LENGTH 20 struct thermal_cooling_device { int id; char type[THERMAL_NAME_LENGTH]; struct device device; void *devdata; |
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const struct thermal_cooling_device_ops *ops; |
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struct list_head node; }; |
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#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) |
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struct thermal_zone_device { int id; char type[THERMAL_NAME_LENGTH]; struct device device; void *devdata; int trips; |
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int tc1; int tc2; int passive_delay; int polling_delay; int last_temperature; bool passive; |
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unsigned int forced_passive; |
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const struct thermal_zone_device_ops *ops; |
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struct list_head cooling_devices; struct idr idr; struct mutex lock; /* protect cooling devices list */ struct list_head node; |
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struct delayed_work poll_queue; |
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}; |
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/* Adding event notification support elements */ #define THERMAL_GENL_FAMILY_NAME "thermal_event" #define THERMAL_GENL_VERSION 0x01 #define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_group" enum events { THERMAL_AUX0, THERMAL_AUX1, THERMAL_CRITICAL, THERMAL_DEV_FAULT, }; struct thermal_genl_event { u32 orig; enum events event; }; /* attributes of thermal_genl_family */ enum { THERMAL_GENL_ATTR_UNSPEC, THERMAL_GENL_ATTR_EVENT, __THERMAL_GENL_ATTR_MAX, }; #define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1) /* commands supported by the thermal_genl_family */ enum { THERMAL_GENL_CMD_UNSPEC, THERMAL_GENL_CMD_EVENT, __THERMAL_GENL_CMD_MAX, }; #define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1) |
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struct thermal_zone_device *thermal_zone_device_register(char *, int, void *, |
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const struct thermal_zone_device_ops *, int tc1, int tc2, int passive_freq, int polling_freq); |
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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 *); |
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void thermal_zone_device_update(struct thermal_zone_device *); |
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struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, |
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const struct thermal_cooling_device_ops *); |
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void thermal_cooling_device_unregister(struct thermal_cooling_device *); |
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#ifdef CONFIG_NET |
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extern int generate_netlink_event(u32 orig, enum events event); |
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#else static inline int generate_netlink_event(u32 orig, enum events event) { return 0; } #endif |
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#endif /* __THERMAL_H__ */ |