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9204605d98
Initial version of freemodbus master port files have been added to ESP-IDF based on https://github.com/armink/FreeModbus_Slave-Master-RTT-STM32. The overall repository license, at the time of adding these files, has been BSD 3-clause. However at that time, several port files carried LGPL license headers. As the author of these files confirmed in https://github.com/armink/FreeModbus_Slave-Master-RTT-STM32/issues/61#issuecomment-977828450, this wasn't intentional. ESP-IDF version of modbus master port has been rewritten to target FreeRTOS instead of RT-Thread, but the license headers remained from the original version. This commit corrects this, replacing the license of these files with BSD 3-clause.
181 lines
6.5 KiB
C
181 lines
6.5 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
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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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* 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: port.h,v 1.1 2010/06/06 13:07:20 wolti Exp $
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*/
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#ifndef PORT_COMMON_H_
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#define PORT_COMMON_H_
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#include "freertos/FreeRTOS.h"
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#include "esp_log.h" // for ESP_LOGE macro
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#include "mbconfig.h"
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#define INLINE inline
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#define PR_BEGIN_EXTERN_C extern "C" {
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#define PR_END_EXTERN_C }
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#define MB_PORT_TAG "MB_PORT_COMMON"
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#define MB_BAUD_RATE_DEFAULT (115200)
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#define MB_QUEUE_LENGTH (CONFIG_FMB_QUEUE_LENGTH)
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#define MB_SERIAL_TASK_PRIO (CONFIG_FMB_PORT_TASK_PRIO)
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#define MB_SERIAL_TASK_STACK_SIZE (CONFIG_FMB_PORT_TASK_STACK_SIZE)
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#define MB_SERIAL_TOUT (3) // 3.5*8 = 28 ticks, TOUT=3 -> ~24..33 ticks
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// Set buffer size for transmission
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#define MB_SERIAL_BUF_SIZE (CONFIG_FMB_SERIAL_BUF_SIZE)
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// common definitions for serial port implementations
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#define MB_SERIAL_TX_TOUT_MS (100)
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#define MB_SERIAL_TX_TOUT_TICKS (pdMS_TO_TICKS(MB_SERIAL_TX_TOUT_MS)) // timeout for transmission
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#define MB_SERIAL_RX_TOUT_MS (1)
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#define MB_SERIAL_RX_TOUT_TICKS (pdMS_TO_TICKS(MB_SERIAL_RX_TOUT_MS)) // timeout for receive
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#define MB_SERIAL_RESP_LEN_MIN (4)
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// Common definitions for TCP port
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#define MB_TCP_BUF_SIZE (256 + 7) // Must hold a complete Modbus TCP frame.
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#define MB_TCP_DEFAULT_PORT (CONFIG_FMB_TCP_PORT_DEFAULT)
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#define MB_TCP_STACK_SIZE (CONFIG_FMB_PORT_TASK_STACK_SIZE)
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#define MB_TCP_TASK_PRIO (CONFIG_FMB_PORT_TASK_PRIO)
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// The task affinity for Modbus stack tasks
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#define MB_PORT_TASK_AFFINITY (CONFIG_FMB_PORT_TASK_AFFINITY)
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#define MB_TCP_READ_TIMEOUT_MS (100) // read timeout in mS
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#define MB_TCP_READ_TIMEOUT (pdMS_TO_TICKS(MB_TCP_READ_TIMEOUT_MS))
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#define MB_TCP_SEND_TIMEOUT_MS (500) // send event timeout in mS
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#define MB_TCP_SEND_TIMEOUT (pdMS_TO_TICKS(MB_TCP_SEND_TIMEOUT_MS))
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#define MB_TCP_PORT_MAX_CONN (CONFIG_FMB_TCP_PORT_MAX_CONN)
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#define MB_TCP_FRAME_LOG_BUFSIZE (256)
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#define MB_PORT_HAS_CLOSE (1) // Define to explicitly close port on destroy
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// Define number of timer reloads per 1 mS
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#define MB_TIMER_TICS_PER_MS (20UL)
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#define MB_TCP_DEBUG (LOG_LOCAL_LEVEL >= ESP_LOG_DEBUG) // Enable legacy debug output in TCP module.
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#define MB_TCP_GET_FIELD(buffer, field) ((USHORT)((buffer[field] << 8U) | buffer[field + 1]))
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#define MB_PORT_CHECK(a, ret_val, str, ...) \
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if (!(a)) { \
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ESP_LOGE(MB_PORT_TAG, "%s(%u): " str, __FUNCTION__, __LINE__, ##__VA_ARGS__); \
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return ret_val; \
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}
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#ifdef __cplusplus
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PR_BEGIN_EXTERN_C
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#endif /* __cplusplus */
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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typedef char BOOL;
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typedef unsigned char UCHAR;
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typedef char CHAR;
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typedef unsigned short USHORT;
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typedef short SHORT;
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typedef unsigned long ULONG;
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typedef long LONG;
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#if MB_TCP_DEBUG
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typedef enum
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{
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MB_LOG_DEBUG,
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MB_LOG_INFO,
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MB_LOG_WARN,
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MB_LOG_ERROR
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} eMBPortLogLevel;
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#endif
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typedef enum
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{
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MB_PROTO_TCP,
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MB_PROTO_UDP,
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} eMBPortProto;
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typedef enum {
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MB_PORT_IPV4 = 0, /*!< TCP IPV4 addressing */
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MB_PORT_IPV6 = 1 /*!< TCP IPV6 addressing */
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} eMBPortIpVer;
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void vMBPortEnterCritical(void);
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void vMBPortExitCritical(void);
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#define ENTER_CRITICAL_SECTION( ) { ESP_EARLY_LOGD(MB_PORT_TAG,"%s: Port enter critical.", __func__); \
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vMBPortEnterCritical(); }
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#define EXIT_CRITICAL_SECTION( ) { vMBPortExitCritical(); \
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ESP_EARLY_LOGD(MB_PORT_TAG,"%s: Port exit critical", __func__); }
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#define MB_PORT_CHECK_EVENT( event, mask ) ( event & mask )
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#define MB_PORT_CLEAR_EVENT( event, mask ) do { event &= ~mask; } while(0)
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#define MB_PORT_PARITY_GET(parity) ((parity != UART_PARITY_DISABLE) ? \
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((parity == UART_PARITY_ODD) ? MB_PAR_ODD : MB_PAR_EVEN) : MB_PAR_NONE)
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// Legacy Modbus logging function
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#if MB_TCP_DEBUG
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void vMBPortLog( eMBPortLogLevel eLevel, const CHAR * szModule,
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const CHAR * szFmt, ... );
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void prvvMBTCPLogFrame( const CHAR * pucMsg, UCHAR * pucFrame, USHORT usFrameLen );
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#endif
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void vMBPortSetMode( UCHAR ucMode );
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UCHAR ucMBPortGetMode( void );
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#ifdef __cplusplus
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PR_END_EXTERN_C
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#endif /* __cplusplus */
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#endif /* PORT_COMMON_H_ */
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