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/**************************************************************************
* @licence app begin@
*
* SPDX-License-Identifier: MPL-2.0
*
* \ingroup SensorsService
* \author Marco Residori <marco.residori@xse.de>
*
* \copyright Copyright (C) 2013, XS Embedded GmbH
*
* \license
* This Source Code Form is subject to the terms of the
* Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with
* this file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* @licence end@
**************************************************************************/
#include "globals.h"
#include "wheel.h"
WheeltickCallback cbWheelticks = 0;
TWheelticks gWheelticks;
bool snsWheeltickInit()
{
int i;
pthread_mutex_lock(&mutexCb);
cbWheelticks = 0;
pthread_mutex_unlock(&mutexCb);
pthread_mutex_lock(&mutexData);
for(i = 0; i < WHEEL_NUM_ELEMENTS; i++)
{
gWheelticks.elements[i].wheeltickCounter = 0;
gWheelticks.elements[i].wheeltickIdentifier = WHEEL_INVALID;
}
pthread_mutex_unlock(&mutexData);
return true;
}
bool snsWheeltickDestroy()
{
pthread_mutex_lock(&mutexCb);
cbWheelticks = 0;
pthread_mutex_unlock(&mutexCb);
return true;
}
bool snsWheeltickGetWheelticks(TWheelticks * ticks)
{
if(!ticks)
{
return false;
}
pthread_mutex_lock(&mutexData);
*ticks = gWheelticks;
pthread_mutex_unlock(&mutexData);
return true;
}
bool snsWheeltickRegisterCallback(WheeltickCallback callback)
{
if(!callback)
{
return false;
}
//printf("snsWheeltickRegisterCallback\n");
pthread_mutex_lock(&mutexCb);
if(cbWheelticks != 0)
{
//already registered
pthread_mutex_unlock(&mutexCb);
return false;
}
cbWheelticks = callback;
pthread_mutex_unlock(&mutexCb);
return true;
}
bool snsWheeltickDeregisterCallback(WheeltickCallback callback)
{
if(!callback)
{
return false;
}
//printf("snsWheeltickDeregisterCallback\n");
pthread_mutex_lock(&mutexCb);
if(cbWheelticks == callback)
{
cbWheelticks = 0;
}
pthread_mutex_unlock(&mutexCb);
return true;
}
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