sys/sys/sensors.h

   1 /* $OpenBSD: sensors.h,v 1.23 2007/03/22 16:55:31 deraadt Exp $ */
   2 /* $DragonFly: src/sys/sys/sensors.h,v 1.1 2007/10/02 12:57:01 hasso Exp $ */
   3
   4 /*
   5  * Copyright (c) 2003, 2004 Alexander Yurchenko <grange@openbsd.org>
   6  * Copyright (c) 2006 Constantine A. Murenin <cnst+openbsd@bugmail.mojo.ru>
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifndef _SYS_SENSORS_H_
  31 #define _SYS_SENSORS_H_
  32
  33 #define SENSORS_DEBUG
  34
  35 /* Sensor types */
  36 enum sensor_type {
  37         SENSOR_TEMP,                    /* temperature (muK) */
  38         SENSOR_FANRPM,                  /* fan revolution speed */
  39         SENSOR_VOLTS_DC,                /* voltage (muV DC) */
  40         SENSOR_VOLTS_AC,                /* voltage (muV AC) */
  41         SENSOR_OHMS,                    /* resistance */
  42         SENSOR_WATTS,                   /* power */
  43         SENSOR_AMPS,                    /* current (muA) */
  44         SENSOR_WATTHOUR,                /* power capacity */
  45         SENSOR_AMPHOUR,                 /* power capacity */
  46         SENSOR_INDICATOR,               /* boolean indicator */
  47         SENSOR_INTEGER,                 /* generic integer value */
  48         SENSOR_PERCENT,                 /* percent */
  49         SENSOR_LUX,                     /* illuminance (mulx) */
  50         SENSOR_DRIVE,                   /* disk */
  51         SENSOR_TIMEDELTA,               /* system time error (nSec) */
  52         SENSOR_MAX_TYPES
  53 };
  54
  55 static const char * const sensor_type_s[SENSOR_MAX_TYPES + 1] = {
  56         "temp",
  57         "fan",
  58         "volt",
  59         "acvolt",
  60         "resistance",
  61         "power",
  62         "current",
  63         "watthour",
  64         "amphour",
  65         "indicator",
  66         "raw",
  67         "percent",
  68         "illuminance",
  69         "drive",
  70         "timedelta",
  71         "undefined"
  72 };
  73
  74 #define SENSOR_DRIVE_EMPTY      1
  75 #define SENSOR_DRIVE_READY      2
  76 #define SENSOR_DRIVE_POWERUP    3
  77 #define SENSOR_DRIVE_ONLINE     4
  78 #define SENSOR_DRIVE_IDLE       5
  79 #define SENSOR_DRIVE_ACTIVE     6
  80 #define SENSOR_DRIVE_REBUILD    7
  81 #define SENSOR_DRIVE_POWERDOWN  8
  82 #define SENSOR_DRIVE_FAIL       9
  83 #define SENSOR_DRIVE_PFAIL      10
  84
  85 /* Sensor states */
  86 enum sensor_status {
  87         SENSOR_S_UNSPEC,                /* status is unspecified */
  88         SENSOR_S_OK,                    /* status is ok */
  89         SENSOR_S_WARN,                  /* status is warning */
  90         SENSOR_S_CRIT,                  /* status is critical */
  91         SENSOR_S_UNKNOWN                /* status is unknown */
  92 };
  93
  94 /* Sensor data:
  95  * New fields should be added at the end to encourage backwards compat
  96  */
  97 struct sensor {
  98         char desc[32];                  /* sensor description, may be empty */
  99         struct timeval tv;              /* sensor value last change time */
 100         int64_t value;                  /* current value */
 101         enum sensor_type type;          /* sensor type */
 102         enum sensor_status status;      /* sensor status */
 103         int numt;                       /* sensor number of .type type */
 104         int flags;                      /* sensor flags */
 105 #define SENSOR_FINVALID         0x0001  /* sensor is invalid */
 106 #define SENSOR_FUNKNOWN         0x0002  /* sensor value is unknown */
 107 };
 108
 109 /* Sensor device data:
 110  * New fields should be added at the end to encourage backwards compat
 111  */
 112 struct sensordev {
 113         int num;                        /* sensordev number */
 114         char xname[16];                 /* unix device name */
 115         int maxnumt[SENSOR_MAX_TYPES];
 116         int sensors_count;
 117 };
 118
 119 #define MAXSENSORDEVICES 32
 120
 121 #ifdef _KERNEL
 122 #include <sys/queue.h>
 123 #ifndef NOSYSCTL8HACK
 124  #include <sys/sysctl.h>
 125 #endif
 126
 127 /* Sensor data */
 128 struct ksensor {
 129         SLIST_ENTRY(ksensor) list;      /* device-scope list */
 130         char desc[32];                  /* sensor description, may be empty */
 131         struct timeval tv;              /* sensor value last change time */
 132         int64_t value;                  /* current value */
 133         enum sensor_type type;          /* sensor type */
 134         enum sensor_status status;      /* sensor status */
 135         int numt;                       /* sensor number of .type type */
 136         int flags;                      /* sensor flags, ie. SENSOR_FINVALID */
 137 };
 138 SLIST_HEAD(ksensors_head, ksensor);
 139
 140 /* Sensor device data */
 141 struct ksensordev {
 142         SLIST_ENTRY(ksensordev) list;
 143         int num;                        /* sensordev number */
 144         char xname[16];                 /* unix device name */
 145         int maxnumt[SENSOR_MAX_TYPES];
 146         int sensors_count;
 147         struct ksensors_head sensors_list;
 148 #ifndef NOSYSCTL8HACK
 149         struct sysctl_ctx_list clist;   /* XXX: sysctl(9) .oid_handler() for
 150                                          * CTLTYPE_NODE type doesn't support
 151                                          * the undocumented sysctl magic.
 152                                          */
 153 #endif /* !NOSYSCTL8HACK */
 154 };
 155
 156 /* struct ksensordev */
 157 void                     sensordev_install(struct ksensordev *);
 158 void                     sensordev_deinstall(struct ksensordev *);
 159
 160 /* struct ksensor */
 161 void                     sensor_attach(struct ksensordev *, struct ksensor *);
 162 void                     sensor_detach(struct ksensordev *, struct ksensor *);
 163
 164 /* task scheduling */
 165 int             sensor_task_register(void *, void (*)(void *), int);
 166 void            sensor_task_unregister(void *);
 167
 168 #endif  /* _KERNEL */
 169
 170 #endif  /* !_SYS_SENSORS_H_ */