diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/thermal.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/include/linux/thermal.h b/include/linux/thermal.h new file mode 100644 index 000000000000..bba7712cadc7 --- /dev/null +++ b/include/linux/thermal.h | |||
| @@ -0,0 +1,94 @@ | |||
| 1 | /* | ||
| 2 | * thermal.h ($Revision: 0 $) | ||
| 3 | * | ||
| 4 | * Copyright (C) 2008 Intel Corp | ||
| 5 | * Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com> | ||
| 6 | * Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com> | ||
| 7 | * | ||
| 8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
| 9 | * This program is free software; you can redistribute it and/or modify | ||
| 10 | * it under the terms of the GNU General Public License as published by | ||
| 11 | * the Free Software Foundation; version 2 of the License. | ||
| 12 | * | ||
| 13 | * This program is distributed in the hope that it will be useful, but | ||
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU General Public License along | ||
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
| 20 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | ||
| 21 | * | ||
| 22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
| 23 | */ | ||
| 24 | |||
| 25 | #ifndef __THERMAL_H__ | ||
| 26 | #define __THERMAL_H__ | ||
| 27 | |||
| 28 | #include <linux/idr.h> | ||
| 29 | #include <linux/device.h> | ||
| 30 | |||
| 31 | struct thermal_zone_device; | ||
| 32 | struct thermal_cooling_device; | ||
| 33 | |||
| 34 | struct thermal_zone_device_ops { | ||
| 35 | int (*bind) (struct thermal_zone_device *, | ||
| 36 | struct thermal_cooling_device *); | ||
| 37 | int (*unbind) (struct thermal_zone_device *, | ||
| 38 | struct thermal_cooling_device *); | ||
| 39 | int (*get_temp) (struct thermal_zone_device *, char *); | ||
| 40 | int (*get_mode) (struct thermal_zone_device *, char *); | ||
| 41 | int (*set_mode) (struct thermal_zone_device *, const char *); | ||
| 42 | int (*get_trip_type) (struct thermal_zone_device *, int, char *); | ||
| 43 | int (*get_trip_temp) (struct thermal_zone_device *, int, char *); | ||
| 44 | }; | ||
| 45 | |||
| 46 | struct thermal_cooling_device_ops { | ||
| 47 | int (*get_max_state) (struct thermal_cooling_device *, char *); | ||
| 48 | int (*get_cur_state) (struct thermal_cooling_device *, char *); | ||
| 49 | int (*set_cur_state) (struct thermal_cooling_device *, unsigned int); | ||
| 50 | }; | ||
| 51 | |||
| 52 | #define THERMAL_TRIPS_NONE -1 | ||
| 53 | #define THERMAL_MAX_TRIPS 10 | ||
| 54 | #define THERMAL_NAME_LENGTH 20 | ||
| 55 | struct thermal_cooling_device { | ||
| 56 | int id; | ||
| 57 | char type[THERMAL_NAME_LENGTH]; | ||
| 58 | struct device device; | ||
| 59 | void *devdata; | ||
| 60 | struct thermal_cooling_device_ops *ops; | ||
| 61 | struct list_head node; | ||
| 62 | }; | ||
| 63 | |||
| 64 | #define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \ | ||
| 65 | ((long)t-2732+5)/10 : ((long)t-2732-5)/10) | ||
| 66 | #define CELSIUS_TO_KELVIN(t) ((t)*10+2732) | ||
| 67 | |||
| 68 | struct thermal_zone_device { | ||
| 69 | int id; | ||
| 70 | char type[THERMAL_NAME_LENGTH]; | ||
| 71 | struct device device; | ||
| 72 | void *devdata; | ||
| 73 | int trips; | ||
| 74 | struct thermal_zone_device_ops *ops; | ||
| 75 | struct list_head cooling_devices; | ||
| 76 | struct idr idr; | ||
| 77 | struct mutex lock; /* protect cooling devices list */ | ||
| 78 | struct list_head node; | ||
| 79 | }; | ||
| 80 | |||
| 81 | struct thermal_zone_device *thermal_zone_device_register(char *, int, void *, | ||
| 82 | struct thermal_zone_device_ops *); | ||
| 83 | void thermal_zone_device_unregister(struct thermal_zone_device *); | ||
| 84 | |||
| 85 | int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, | ||
| 86 | struct thermal_cooling_device *); | ||
| 87 | int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, | ||
| 88 | struct thermal_cooling_device *); | ||
| 89 | |||
| 90 | struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, | ||
| 91 | struct thermal_cooling_device_ops *); | ||
| 92 | void thermal_cooling_device_unregister(struct thermal_cooling_device *); | ||
| 93 | |||
| 94 | #endif /* __THERMAL_H__ */ | ||