osd-contiki/examples/avr-rss2/ipv6/dc-rpl-coap/dev/dc-vdc-sensor.c

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/*
* Copyright (c) 2015, ICT/COS/NSLab, KTH Royal Institute of Technology
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*/
/**
* \file
* dcdc/vdc for voltage droop control function
* \author
* Voravit Tanyingyong <voravit@kth.se>
*/
#include "contiki.h"
/* #include "lib/sensors.h" */
#include "dev/dc-vdc-sensor.h"
const struct sensors_sensor dc_vdc_sensor;
/*
* vdc contains 3 parameters
* vdc[0] VGRID
* vdc[1] SLOPE
* vdc[2] PMAX
*/
uint32_t volatile vdc[3] = { 18, 1, 100 };
static int
value(int type)
{
switch(type) {
case 0:
return vdc[0];
case 1:
return vdc[1];
case 2:
return vdc[2];
}
return -1;
}
static int
configure(int type, int c)
{
switch(type) {
case 0:
if((c >= 0) && (c <= 25)) {
vdc[0] = c;
return 0;
} else {
return 1;
}
case 1:
vdc[1] = c;
return 0;
case 2:
vdc[2] = c;
return 0;
}
return 1;
}
static int
status(int type)
{
return 1;
}
SENSORS_SENSOR(dc_vdc_sensor, "vdc sensors", value, configure, status);