energest.c

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00001 /*
00002  * Copyright (c) 2007, Swedish Institute of Computer Science.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the Institute nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  * This file is part of the Contiki operating system.
00030  *
00031  * $Id: energest.c,v 1.2 2008/09/29 11:44:37 joxe Exp $
00032  */
00033 
00034 /**
00035  * \file
00036  *         Implementation of the energy estimation module
00037  * \author
00038  *         Adam Dunkels <adam@sics.se>
00039  */
00040 
00041 #include "sys/energest.h"
00042 #include "contiki-conf.h"
00043 
00044 #if ENERGEST_CONF_ON
00045 
00046 int energest_total_count;
00047 energest_t energest_total_time[ENERGEST_TYPE_MAX];
00048 rtimer_clock_t energest_current_time[ENERGEST_TYPE_MAX];
00049 #ifdef ENERGEST_CONF_LEVELDEVICE_LEVELS
00050 energest_t energest_leveldevice_current_leveltime[ENERGEST_CONF_LEVELDEVICE_LEVELS];
00051 #endif
00052 unsigned char energest_current_mode[ENERGEST_TYPE_MAX];
00053 
00054 /*---------------------------------------------------------------------------*/
00055 void
00056 energest_init(void)
00057 {
00058   int i;
00059   for(i = 0; i < ENERGEST_TYPE_MAX; ++i) {
00060     energest_total_time[i].current = energest_current_time[i] = 0;
00061     energest_current_mode[i] = 0;
00062   }
00063 #ifdef ENERGEST_CONF_LEVELDEVICE_LEVELS
00064   for(i = 0; i < ENERGEST_CONF_LEVELDEVICE_LEVELS; ++i) {
00065     energest_leveldevice_current_leveltime[i].current = 0;
00066   }
00067 #endif
00068 }
00069 /*---------------------------------------------------------------------------*/
00070 unsigned long
00071 energest_type_time(int type)
00072 {
00073   /* Note: does not support ENERGEST_CONF_LEVELDEVICE_LEVELS! */
00074 #ifndef ENERGEST_CONF_LEVELDEVICE_LEVELS
00075   if(energest_current_mode[type]) {
00076     rtimer_clock_t now = RTIMER_NOW();
00077     energest_total_time[type].current += (rtimer_clock_t)
00078       (now - energest_current_time[type]);
00079     energest_current_time[type] = now;
00080   }
00081 #endif /* ENERGEST_CONF_LEVELDEVICE_LEVELS */
00082   return energest_total_time[type].current;
00083 }
00084 /*---------------------------------------------------------------------------*/
00085 unsigned long
00086 energest_leveldevice_leveltime(int powerlevel)
00087 {
00088 #ifdef ENERGEST_CONF_LEVELDEVICE_LEVELS
00089   return energest_leveldevice_current_leveltime[powerlevel].current;
00090 #else
00091   return 0;
00092 #endif
00093 }
00094 /*---------------------------------------------------------------------------*/
00095 void
00096 energest_type_set(int type, unsigned long val)
00097 {
00098   energest_total_time[type].current = val;
00099 }
00100 /*---------------------------------------------------------------------------*/
00101 /* Note: does not support ENERGEST_CONF_LEVELDEVICE_LEVELS! */
00102 void
00103 energest_flush(void)
00104 {
00105   rtimer_clock_t now;
00106   int i;
00107   for(i = 0; i < ENERGEST_TYPE_MAX; i++) {
00108     if(energest_current_mode[i]) {
00109       now = RTIMER_NOW();
00110       energest_total_time[i].current += (rtimer_clock_t)
00111         (now - energest_current_time[i]);
00112       energest_current_time[i] = now;
00113     }
00114   }
00115 }
00116 /*---------------------------------------------------------------------------*/
00117 #else /* ENERGEST_CONF_ON */
00118 void energest_type_set(int type, unsigned long val) {}
00119 void energest_init(void) {}
00120 unsigned long energest_type_time(int type) { return 0; }
00121 void energest_flush(void) {}
00122 #endif /* ENERGEST_CONF_ON */

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