OVMS3-idf/components/freemodbus/port/portother.c
aleks 7342811c37 freemodbus: change critical sections to semaphore mutex
revert changes made in mbrtu.c, mbascii.c
change critical section type to semaphore mutex instead of spin lock

Closes: https://github.com/espressif/esp-idf/issues/3009
2019-03-07 16:01:43 +01:00

76 lines
2.6 KiB
C

/*
* FreeModbus Libary: ESP32 Demo Application
* Copyright (C) 2010 Christian Walter <cwalter@embedded-solutions.at>
*
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* IF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR 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: $Id: portother.c,v 1.1 2010/06/06 13:07:20 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include <stdlib.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
#include "sys/lock.h"
/* ----------------------- Modbus includes ----------------------------------*/
/* ----------------------- Variables ----------------------------------------*/
static _lock_t s_port_lock;
/* ----------------------- Start implementation -----------------------------*/
BOOL
bMBPortIsWithinException( void )
{
BOOL bIsWithinException = xPortInIsrContext();
return bIsWithinException;
}
inline void
vMBPortEnterCritical( void )
{
_lock_acquire(&s_port_lock);
}
inline void
vMBPortExitCritical( void )
{
_lock_release(&s_port_lock);
}
void
vMBPortClose( void )
{
extern void vMBPortSerialClose( void );
extern void vMBPortTimerClose( void );
extern void vMBPortEventClose( void );
vMBPortSerialClose( );
vMBPortTimerClose( );
vMBPortEventClose( );
}