nuttx-apps/examples/powermonitor/powermonitor_main.c
Alin Jerpelea 2ac8589a25 examples: fix relative path CI error
error: Path relative to repository other than nuttx must begin with the root directory
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-16 09:03:06 -05:00

107 lines
3.6 KiB
C

/****************************************************************************
* apps/examples/powermonitor/powermonitor_main.c
*
* Copyright (C) 2017 Giorgi Groß. All rights reserved.
* Author: Giorgio Groß <giorgio.gross@robodev.eu>
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/******************************************************************************
* Included Files
******************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <stdio.h>
#include <fixedmath.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#include <nuttx/sensors/ltc4151.h>
/******************************************************************************
* Pre-processor Definitions
******************************************************************************/
#define DECIMAL_PLACES3(x) abs(((int)(((x)-((int)x))*1000)))
/******************************************************************************
* Public Functions
******************************************************************************/
int main(int argc, char *argv[])
{
static FAR const char *pwrmntr_dev = "/dev/pwrmntr0";
float float_current;
float float_voltage;
ltc4151_t ltc;
int pwrmntr_fd;
int samples;
int sample;
samples = 1;
if (argc > 1)
{
samples = atoi(argv[1]);
}
pwrmntr_fd = open(pwrmntr_dev, O_RDONLY);
if (pwrmntr_fd < 0)
{
printf("Failed to open %s: %d\n", pwrmntr_dev, errno);
return 1;
}
for (sample = 0; sample < samples; ++sample)
{
if (read(pwrmntr_fd, &ltc, sizeof(ltc)) < 0)
{
printf("Failed to read from %s: %d\n", pwrmntr_dev, errno);
return 1;
}
float_current = b16tof(ltc.current);
float_voltage = b16tof(ltc.voltage);
printf("Current: %d.%03dmA - Voltage: %d.%03dV\n",
(int)float_current, DECIMAL_PLACES3(float_current),
(int)float_voltage, DECIMAL_PLACES3(float_voltage));
}
close(pwrmntr_fd);
return 0;
}