diff options
Diffstat (limited to 'src/sensors-service/wheeltick.c')
| -rw-r--r-- | src/sensors-service/wheeltick.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/sensors-service/wheeltick.c b/src/sensors-service/wheeltick.c new file mode 100644 index 0000000..d582d92 --- /dev/null +++ b/src/sensors-service/wheeltick.c @@ -0,0 +1,172 @@ +/************************************************************************** +* @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" + +static pthread_mutex_t mutexCb = PTHREAD_MUTEX_INITIALIZER; //protects the callbacks +static pthread_mutex_t mutexData = PTHREAD_MUTEX_INITIALIZER; //protects the data + +static volatile WheelCallback cbWheel = 0; +static TWheelData gWheelData = {0}; + +static TSensorStatus gStatus = {0}; +static volatile SensorStatusCallback cbStatus = 0; + +bool iWheelInit() +{ + int i; + + pthread_mutex_lock(&mutexCb); + cbWheel = 0; + pthread_mutex_unlock(&mutexCb); + + pthread_mutex_lock(&mutexData); + gWheelData.validityBits = 0; + pthread_mutex_unlock(&mutexData); + + return true; +} + +bool iWheelDestroy() +{ + pthread_mutex_lock(&mutexCb); + cbWheel = 0; + pthread_mutex_unlock(&mutexCb); + + return true; +} + +bool snsWheelGetWheelData(TWheelData *wheelData) +{ + bool retval = false; + if(wheelData) + { + pthread_mutex_lock(&mutexData); + *wheelData = gWheelData; + pthread_mutex_unlock(&mutexData); + retval = true; + } + return retval; +} + +bool snsWheelRegisterCallback(WheelCallback callback) +{ + bool retval = false; + + pthread_mutex_lock(&mutexCb); + //only if valid callback and not already registered + if(callback && !cbWheel) + { + cbWheel = callback; + retval = true; + } + pthread_mutex_unlock(&mutexCb); + + return retval; +} + +bool snsWheelDeregisterCallback(WheelCallback callback) +{ + bool retval = false; + + pthread_mutex_lock(&mutexCb); + if((cbWheel == callback) && callback) + { + cbWheel = 0; + retval = true; + } + pthread_mutex_unlock(&mutexCb); + + return retval; +} + +void updateWheelData(const TWheelData wheelData[], uint16_t numElements) +{ + if (wheelData != NULL && numElements > 0) + { + pthread_mutex_lock(&mutexData); + gWheelData = wheelData[numElements-1]; + pthread_mutex_unlock(&mutexData); + pthread_mutex_lock(&mutexCb); + if (cbWheel) + { + cbWheel(wheelData, numElements); + } + pthread_mutex_unlock(&mutexCb); + } +} + +bool snsWheelGetStatus(TSensorStatus* status){ + bool retval = false; + if(status) + { + pthread_mutex_lock(&mutexData); + *status = gStatus; + pthread_mutex_unlock(&mutexData); + retval = true; + } + return retval; +} + +bool snsWheelRegisterStatusCallback(SensorStatusCallback callback) +{ + bool retval = false; + + pthread_mutex_lock(&mutexCb); + //only if valid callback and not already registered + if(callback && !cbStatus) + { + cbStatus = callback; + retval = true; + } + pthread_mutex_unlock(&mutexCb); + + return retval; +} + +bool snsWheelDeregisterStatusCallback(SensorStatusCallback callback) +{ + bool retval = false; + + pthread_mutex_lock(&mutexCb); + if((cbStatus == callback) && callback) + { + cbStatus = 0; + retval = true; + } + pthread_mutex_unlock(&mutexCb); + + return retval; +} + +void updateWheelStatus(const TSensorStatus* status) +{ + if (status) + { + pthread_mutex_lock(&mutexData); + gStatus = *status; + pthread_mutex_unlock(&mutexData); + pthread_mutex_lock(&mutexCb); + if (cbStatus) + { + cbStatus(status); + } + pthread_mutex_unlock(&mutexCb); + } +}
\ No newline at end of file |