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https://github.com/espressif/esp-idf.git
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1ab9e81729
place timer handler functions into IRAM update timer port handlers fix communication issues fix offset issue in example add kconfig option to place handlers into IRAM
130 lines
4.3 KiB
C
130 lines
4.3 KiB
C
/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* FreeModbus Libary: ESP32 Port Demo Application
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* Copyright (C) 2010 Christian Walter <cwalter@embedded-solutions.at>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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*
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* IF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* File: $Id: portevent.c,v 1.1 2010/06/06 13:07:20 wolti Exp $
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*/
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/* ----------------------- System includes ----------------------------------*/
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#include <freertos/FreeRTOS.h>
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#include <freertos/task.h>
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#include <freertos/queue.h>
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/* ----------------------- Modbus includes ----------------------------------*/
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#include "mb.h"
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#include "mbport.h"
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#include "port.h"
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#include "sdkconfig.h"
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#include "port_serial_slave.h"
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/* ----------------------- Variables ----------------------------------------*/
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static xQueueHandle xQueueHdl;
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#define MB_EVENT_QUEUE_SIZE (6)
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#define MB_EVENT_QUEUE_TIMEOUT (pdMS_TO_TICKS(CONFIG_FMB_EVENT_QUEUE_TIMEOUT))
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/* ----------------------- Start implementation -----------------------------*/
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BOOL
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xMBPortEventInit( void )
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{
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BOOL bStatus = FALSE;
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if((xQueueHdl = xQueueCreate(MB_EVENT_QUEUE_SIZE, sizeof(eMBEventType))) != NULL)
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{
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vQueueAddToRegistry(xQueueHdl, "MbPortEventQueue");
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bStatus = TRUE;
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}
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return bStatus;
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}
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void
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vMBPortEventClose( void )
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{
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if(xQueueHdl != NULL)
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{
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vQueueDelete(xQueueHdl);
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xQueueHdl = NULL;
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}
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}
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BOOL MB_PORT_ISR_ATTR
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xMBPortEventPost( eMBEventType eEvent )
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{
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BaseType_t xStatus, xHigherPriorityTaskWoken = pdFALSE;
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assert(xQueueHdl != NULL);
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if( (BOOL)xPortInIsrContext() == TRUE )
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{
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xStatus = xQueueSendFromISR(xQueueHdl, (const void*)&eEvent, &xHigherPriorityTaskWoken);
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MB_PORT_CHECK((xStatus == pdTRUE), FALSE, "%s: Post message failure.", __func__);
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if ( xHigherPriorityTaskWoken )
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{
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portYIELD_FROM_ISR();
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}
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}
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else
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{
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xStatus = xQueueSend(xQueueHdl, (const void*)&eEvent, MB_EVENT_QUEUE_TIMEOUT);
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MB_PORT_CHECK((xStatus == pdTRUE), FALSE, "%s: Post message failure.", __func__);
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}
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return TRUE;
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}
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BOOL
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xMBPortEventGet(eMBEventType * peEvent)
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{
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assert(xQueueHdl != NULL);
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BOOL xEventHappened = FALSE;
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if (xQueueReceive(xQueueHdl, peEvent, portMAX_DELAY) == pdTRUE) {
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xEventHappened = TRUE;
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}
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return xEventHappened;
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}
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xQueueHandle
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xMBPortEventGetHandle(void)
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{
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if(xQueueHdl != NULL) //
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{
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return xQueueHdl;
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}
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return NULL;
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}
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