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https://github.com/espressif/esp-idf.git
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cfdd5f0ef7
place timer interrupt handler into flash by default; add default settings for timer and UART interrupts to place them into IRAM into example defaults; CONFIG_FMB_TIMER_PORT_ENABLED default = n, when enabled, the UART_ISR_IN_IRAM set to y
229 lines
8.5 KiB
C
229 lines
8.5 KiB
C
/*
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* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
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* Copyright (c) 2006 Christian Walter <wolti@sil.at>
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* All rights reserved.
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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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* OF 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: mbport.h,v 1.19 2010/06/06 13:54:40 wolti Exp $
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*/
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#ifndef _MB_PORT_H
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#define _MB_PORT_H
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#include "mbconfig.h" // for options
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#ifdef __cplusplus
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PR_BEGIN_EXTERN_C
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#endif
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#if CONFIG_UART_ISR_IN_IRAM
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#define MB_PORT_SERIAL_ISR_FLAG ESP_INTR_FLAG_IRAM
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#else
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#define MB_PORT_SERIAL_ISR_FLAG ESP_INTR_FLAG_LOWMED
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#endif
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#if MB_PORT_TIMER_ISR_IN_IRAM
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#define MB_PORT_ISR_ATTR IRAM_ATTR
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#define MB_PORT_TIMER_ISR_FLAG ESP_INTR_FLAG_IRAM
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#else
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#define MB_PORT_ISR_ATTR
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#define MB_PORT_TIMER_ISR_FLAG ESP_INTR_FLAG_LOWMED
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#endif
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/* ----------------------- Type definitions ---------------------------------*/
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typedef enum
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{
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EV_READY = 0x01, /*!< Startup finished. */
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EV_FRAME_RECEIVED = 0x02, /*!< Frame received. */
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EV_EXECUTE = 0x04, /*!< Execute function. */
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EV_FRAME_SENT = 0x08 /*!< Frame sent. */
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} eMBEventType;
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#if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED
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typedef enum {
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EV_MASTER_NO_EVENT = 0x0000,
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EV_MASTER_READY = 0x0001, /*!< Startup finished. */
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EV_MASTER_FRAME_RECEIVED = 0x0002, /*!< Frame received. */
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EV_MASTER_EXECUTE = 0x0004, /*!< Execute function. */
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EV_MASTER_FRAME_SENT = 0x0008, /*!< Frame sent. */
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EV_MASTER_FRAME_TRANSMITTED = 0x0010, /*!< Request execute function error. */
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EV_MASTER_ERROR_PROCESS = 0x0020, /*!< Frame error process. */
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EV_MASTER_PROCESS_SUCCESS = 0x0040, /*!< Request process success. */
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EV_MASTER_ERROR_RESPOND_TIMEOUT = 0x0080, /*!< Request respond timeout. */
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EV_MASTER_ERROR_RECEIVE_DATA = 0x0100, /*!< Request receive data error. */
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EV_MASTER_ERROR_EXECUTE_FUNCTION = 0x0200, /*!< Request execute function error. */
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} eMBMasterEventType;
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typedef enum {
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EV_ERROR_RESPOND_TIMEOUT, /*!< Slave respond timeout. */
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EV_ERROR_RECEIVE_DATA, /*!< Receive frame data erroe. */
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EV_ERROR_EXECUTE_FUNCTION, /*!< Execute function error. */
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} eMBMasterErrorEventType;
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#endif
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/*! \ingroup modbus
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* \brief Parity used for characters in serial mode.
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*
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* The parity which should be applied to the characters sent over the serial
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* link. Please note that this values are actually passed to the porting
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* layer and therefore not all parity modes might be available.
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*/
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typedef enum
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{
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MB_PAR_NONE, /*!< No parity. */
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MB_PAR_ODD, /*!< Odd parity. */
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MB_PAR_EVEN /*!< Even parity. */
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} eMBParity;
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/* ----------------------- Supporting functions -----------------------------*/
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BOOL xMBPortEventInit( void );
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BOOL xMBPortEventPost( eMBEventType eEvent );
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BOOL xMBPortEventGet( /*@out@ */ eMBEventType * eEvent );
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#if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED
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BOOL xMBMasterPortEventInit( void );
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BOOL xMBMasterPortEventPost( eMBMasterEventType eEvent );
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BOOL xMBMasterPortEventGet( /*@out@ */ eMBMasterEventType * eEvent );
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void vMBMasterOsResInit( void );
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BOOL xMBMasterRunResTake( LONG time );
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void vMBMasterRunResRelease( void );
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#endif // #if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED
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/* ----------------------- Serial port functions ----------------------------*/
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BOOL xMBPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
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UCHAR ucDataBits, eMBParity eParity );
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void vMBPortClose( void );
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void xMBPortSerialClose( void );
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void vMBPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
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BOOL xMBPortSerialGetByte( CHAR * pucByte );
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BOOL xMBPortSerialPutByte( CHAR ucByte );
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#if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED
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BOOL xMBMasterPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
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UCHAR ucDataBits, eMBParity eParity );
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void vMBMasterPortClose( void );
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void xMBMasterPortSerialClose( void );
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void vMBMasterPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
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BOOL xMBMasterPortSerialGetByte( CHAR * pucByte );
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BOOL xMBMasterPortSerialPutByte( CHAR ucByte );
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#endif
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/* ----------------------- Timers functions ---------------------------------*/
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BOOL xMBPortTimersInit( USHORT usTimeOut50us );
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void xMBPortTimersClose( void );
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void vMBPortTimersEnable( void );
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void vMBPortTimersDisable( void );
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void vMBPortTimersDelay( USHORT usTimeOutMS );
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#if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED
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BOOL xMBMasterPortTimersInit( USHORT usTimeOut50us );
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void xMBMasterPortTimersClose( void );
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void vMBMasterPortTimersT35Enable( void );
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void vMBMasterPortTimersConvertDelayEnable( void );
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void vMBMasterPortTimersRespondTimeoutEnable( void );
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void vMBMasterPortTimersDisable( void );
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#endif
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/* ----------------- Callback for the master error process ------------------*/
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void vMBMasterErrorCBRespondTimeout( UCHAR ucDestAddress, const UCHAR* pucPDUData,
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USHORT ucPDULength );
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void vMBMasterErrorCBReceiveData( UCHAR ucDestAddress, const UCHAR* pucPDUData,
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USHORT ucPDULength );
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void vMBMasterErrorCBExecuteFunction( UCHAR ucDestAddress, const UCHAR* pucPDUData,
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USHORT ucPDULength );
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void vMBMasterCBRequestSuccess( void );
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/* ----------------------- Callback for the protocol stack ------------------*/
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/*!
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* \brief Callback function for the porting layer when a new byte is
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* available.
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*
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* Depending upon the mode this callback function is used by the RTU or
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* ASCII transmission layers. In any case a call to xMBPortSerialGetByte()
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* must immediately return a new character.
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*
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* \return <code>TRUE</code> if a event was posted to the queue because
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* a new byte was received. The port implementation should wake up the
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* tasks which are currently blocked on the eventqueue.
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*/
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extern BOOL( *pxMBFrameCBByteReceived ) ( void );
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extern BOOL( *pxMBFrameCBTransmitterEmpty ) ( void );
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extern BOOL( *pxMBPortCBTimerExpired ) ( void );
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#if MB_MASTER_RTU_ENABLED || MB_MASTER_ASCII_ENABLED
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extern BOOL( *pxMBMasterFrameCBByteReceived ) ( void );
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extern BOOL( *pxMBMasterFrameCBTransmitterEmpty ) ( void );
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extern BOOL( *pxMBMasterPortCBTimerExpired ) ( void );
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#endif
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/* ----------------------- TCP port functions -------------------------------*/
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#if MB_TCP_ENABLED
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BOOL xMBTCPPortInit( USHORT usTCPPort );
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void vMBTCPPortClose( void );
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void vMBTCPPortDisable( void );
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BOOL xMBTCPPortGetRequest( UCHAR **ppucMBTCPFrame, USHORT * usTCPLength );
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BOOL xMBTCPPortSendResponse( const UCHAR *pucMBTCPFrame, USHORT usTCPLength );
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#endif
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#ifdef __cplusplus
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PR_END_EXTERN_C
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#endif
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#endif
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