PX4-Autopilot/src/modules/mavlink/mavlink_simple_analyzer.cpp
Beat Küng 3198610f85 src/platforms: move all headers to platforms/common/include/px4_platform_common
and remove the px4_ prefix, except for px4_config.h.

command to update includes:
for k in app.h atomic.h cli.h console_buffer.h defines.h getopt.h i2c.h init.h log.h micro_hal.h module.h module_params.h param.h param_macros.h posix.h sem.h sem.hpp shmem.h shutdown.h tasks.h time.h workqueue.h; do for i in $(grep -rl 'include <px4_'$k src platforms boards); do sed -i 's/#include <px4_'$k'/#include <px4_platform_common\/'$k/ $i; done; done
for in $(grep -rl 'include <px4_config.h' src platforms boards); do sed -i 's/#include <px4_config.h/#include <px4_platform_common\/px4_config.h'/ $i; done

Transitional headers for submodules are added (px4_{defines,log,time}.h)
2019-10-30 11:48:47 +01:00

175 lines
3.7 KiB
C++

/****************************************************************************
*
* Copyright (c) 2015-2018 PX4 Development Team. 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 PX4 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.
*
****************************************************************************/
/**
* @file mavlink_simple_analyzer.cpp
*
* @author Achermann Florian <acfloria@ethz.ch>
*/
#include "mavlink_simple_analyzer.h"
#include <float.h>
#include <px4_platform_common/log.h>
#include <px4_platform_common/defines.h>
SimpleAnalyzer::SimpleAnalyzer(Mode mode, float window) :
_window(window),
_mode(mode)
{
reset();
}
void SimpleAnalyzer::reset()
{
_n = 0;
switch (_mode) {
case AVERAGE:
_result = 0.0f;
break;
case MIN:
_result = FLT_MAX;
break;
case MAX:
_result = FLT_MIN;
break;
default:
PX4_ERR("SimpleAnalyzer: Unknown mode.");
}
}
void SimpleAnalyzer::add_value(float val, float update_rate)
{
switch (_mode) {
case AVERAGE:
_result = (_result * _n + val) / (_n + 1u);
break;
case MIN:
if (val < _result) {
_result = val;
}
break;
case MAX:
if (val > _result) {
_result = val;
}
break;
}
// if we get more measurements than n_max so the exponential moving average
// is computed
if ((_n < update_rate * _window) && (update_rate > 1.0f)) {
_n++;
}
// value sanity checks
if (!PX4_ISFINITE(_result)) {
PX4_DEBUG("SimpleAnalyzer: Result is not finite, reset the analyzer.");
reset();
}
}
bool SimpleAnalyzer::valid() const
{
return _n > 0u;
}
float SimpleAnalyzer::get() const
{
return _result;
}
float SimpleAnalyzer::get_scaled(float scalingfactor) const
{
return get() * scalingfactor;
}
void SimpleAnalyzer::check_limits(float &x, float min, float max) const
{
if (x > max) {
x = max;
} else if (x < min) {
x = min;
}
}
void SimpleAnalyzer::int_round(float &x) const
{
if (x < 0) {
x -= 0.5f;
} else {
x += 0.5f;
}
}
void convert_limit_safe(float in, uint16_t &out)
{
if (in > UINT16_MAX) {
out = UINT16_MAX;
} else if (in < 0) {
out = 0;
} else {
out = static_cast<uint16_t>(in);
}
}
void convert_limit_safe(float in, int16_t &out)
{
if (in > INT16_MAX) {
out = INT16_MAX;
} else if (in < INT16_MIN) {
out = INT16_MIN;
} else {
out = static_cast<int16_t>(in);
}
}