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88 lines
3.4 KiB
88 lines
3.4 KiB
/* |
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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: mbfuncother.c,v 1.8 2006/12/07 22:10:34 wolti Exp $ |
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*/ |
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/* ----------------------- System includes ----------------------------------*/ |
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#include <nuttx/config.h> |
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#include <stdlib.h> |
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#include <string.h> |
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/* ----------------------- Platform includes --------------------------------*/ |
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#include "port.h" |
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/* ----------------------- Modbus includes ----------------------------------*/ |
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#include <apps/modbus/mb.h> |
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#include <apps/modbus/mbframe.h> |
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#include <apps/modbus/mbproto.h> |
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#ifdef CONFIG_MB_FUNC_OTHER_REP_SLAVEID_ENABLED |
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/* ----------------------- Static variables ---------------------------------*/ |
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static uint8_t ucMBSlaveID[CONFIG_MB_FUNC_OTHER_REP_SLAVEID_BUF]; |
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static uint16_t usMBSlaveIDLen; |
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/* ----------------------- Start implementation -----------------------------*/ |
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eMBErrorCode |
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eMBSetSlaveID( uint8_t ucSlaveID, bool xIsRunning, |
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uint8_t const *pucAdditional, uint16_t usAdditionalLen ) |
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{ |
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eMBErrorCode eStatus = MB_ENOERR; |
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/* the first byte and second byte in the buffer is reserved for |
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* the parameter ucSlaveID and the running flag. The rest of |
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* the buffer is available for additional data. */ |
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if( usAdditionalLen + 2 < CONFIG_MB_FUNC_OTHER_REP_SLAVEID_BUF ) |
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{ |
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usMBSlaveIDLen = 0; |
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ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID; |
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ucMBSlaveID[usMBSlaveIDLen++] = ( uint8_t )( xIsRunning ? 0xFF : 0x00 ); |
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if( usAdditionalLen > 0 ) |
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{ |
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memcpy( &ucMBSlaveID[usMBSlaveIDLen], pucAdditional, |
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( size_t )usAdditionalLen ); |
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usMBSlaveIDLen += usAdditionalLen; |
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} |
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} |
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else |
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{ |
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eStatus = MB_ENORES; |
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} |
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return eStatus; |
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} |
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eMBException |
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eMBFuncReportSlaveID( uint8_t * pucFrame, uint16_t * usLen ) |
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{ |
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memcpy( &pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], ( size_t )usMBSlaveIDLen ); |
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*usLen = ( uint16_t )( MB_PDU_DATA_OFF + usMBSlaveIDLen ); |
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return MB_EX_NONE; |
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} |
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#endif
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