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/*
* Copyright (C) 2015 - 2018, IBEROXARXA SERVICIOS INTEGRALES, S.L.
* Copyright (C) 2015 - 2018, Jaume Olivé Petrus (jolive@whitecatboard.org)
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
* * The WHITECAT logotype cannot be changed, you can remove it, but you
* cannot change it in any way. The WHITECAT logotype is:
*
* /\ /\
* / \_____/ \
* /_____________\
* W H I T E C A T
*
* * Redistributions in binary form must retain all copyright notices printed
* to any local or remote output device. This include any reference to
* Lua RTOS, whitecatboard.org, Lua, and other copyright notices that may
* appear in the future.
*
* 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 <COPYRIGHT HOLDER> 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.
*
* Lua RTOS mutex api implementation over FreeRTOS
*
*/
//#include "sdkconfig.h"
#include <FreeRTOS.h>
#include "../freertos/adds.h"
//#include "esp_attr.h"
#include "mutex.h"
#include "panic.h"
int mtx_inited(struct mtx *mutex) {
return (mutex->lock != 0);
}
void mtx_init(struct mtx *mutex, const char *name, const char *type, int opts) {
mutex->opts = opts;
if (mutex->opts == MTX_DEF) {
mutex->lock = xSemaphoreCreateBinary();
} else if (opts == MTX_RECURSE) {
mutex->lock = xSemaphoreCreateRecursiveMutex();
} else {
return;
}
if (mutex->lock) {
#if 0 //{}
if (xPortInIsrContext()) {
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
xSemaphoreGiveFromISR( mutex->lock, &xHigherPriorityTaskWoken);
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
} else {
#endif
if (mutex->opts == MTX_DEF) {
xSemaphoreGive( mutex->lock );
}
//{} }
}
}
void mtx_lock(struct mtx *mutex) {
#if 0 //{}
if (xPortInIsrContext()) {
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
xSemaphoreTakeFromISR( mutex->lock, &xHigherPriorityTaskWoken );
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
} else {
#endif
if (mutex->opts == MTX_DEF) {
xSemaphoreTake( mutex->lock, portMAX_DELAY );
} else if (mutex->opts == MTX_RECURSE) {
xSemaphoreTakeRecursive( mutex->lock, portMAX_DELAY );
}
//{} }
}
int mtx_trylock(struct mtx *mutex) {
if (mutex->opts == MTX_DEF) {
if (xSemaphoreTake( mutex->lock, 0 ) == pdTRUE) {
return 1;
} else {
return 0;
}
} else if (mutex->opts == MTX_RECURSE) {
if (xSemaphoreTakeRecursive( mutex->lock, 0 ) == pdTRUE) {
return 1;
} else {
return 0;
}
}
return 0;
}
void mtx_unlock(struct mtx *mutex) {
#if 0 //{}
if (xPortInIsrContext()) {
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
xSemaphoreGiveFromISR( mutex->lock, &xHigherPriorityTaskWoken );
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
} else {
#endif
if (mutex->opts == MTX_DEF) {
xSemaphoreGive( mutex->lock );
} else if (mutex->opts == MTX_RECURSE) {
xSemaphoreGiveRecursive( mutex->lock );
}
//{} }
}
void mtx_destroy(struct mtx *mutex) {
if (!mutex->lock) return;
if (mutex->opts == MTX_DEF) {
#if 0 //{}
if (xPortInIsrContext()) {
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
xSemaphoreGiveFromISR( mutex->lock, &xHigherPriorityTaskWoken );
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
} else {
#endif
xSemaphoreGive( mutex->lock );
//{} }
vSemaphoreDelete( mutex->lock );
} else if (mutex->opts == MTX_RECURSE) {
vSemaphoreDelete( mutex->lock );
}
mutex->lock = 0;
}
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