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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-07-21 13:35:35 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-07-21 13:35:35 +0000 |
commit | 1dc0e8b8c5b6e03fcfcdcbc89efd512f934eaca5 (patch) | |
tree | 646977318abbfe8b9b08885db68bda1103428686 /apps/modbus/functions/mbfuncother.c | |
parent | ec9c693a8fbabde333c2a022c12476a12ca5f9b8 (diff) | |
download | nuttx-1dc0e8b8c5b6e03fcfcdcbc89efd512f934eaca5.tar.gz nuttx-1dc0e8b8c5b6e03fcfcdcbc89efd512f934eaca5.tar.bz2 nuttx-1dc0e8b8c5b6e03fcfcdcbc89efd512f934eaca5.zip |
Check-in of initial, unmodified freemodbus-v1.5.0
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4960 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/modbus/functions/mbfuncother.c')
-rw-r--r-- | apps/modbus/functions/mbfuncother.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/apps/modbus/functions/mbfuncother.c b/apps/modbus/functions/mbfuncother.c new file mode 100644 index 000000000..fcee972bf --- /dev/null +++ b/apps/modbus/functions/mbfuncother.c @@ -0,0 +1,88 @@ +/* + * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU. + * Copyright (c) 2006 Christian Walter <wolti@sil.at> + * All rights reserved. + * + * 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 + * OF 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: mbfuncother.c,v 1.8 2006/12/07 22:10:34 wolti Exp $ + */ + +/* ----------------------- System includes ----------------------------------*/ +#include "stdlib.h" +#include "string.h" + +/* ----------------------- Platform includes --------------------------------*/ +#include "port.h" + +/* ----------------------- Modbus includes ----------------------------------*/ +#include "mb.h" +#include "mbframe.h" +#include "mbproto.h" +#include "mbconfig.h" + +#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0 + +/* ----------------------- Static variables ---------------------------------*/ +static UCHAR ucMBSlaveID[MB_FUNC_OTHER_REP_SLAVEID_BUF]; +static USHORT usMBSlaveIDLen; + +/* ----------------------- Start implementation -----------------------------*/ + +eMBErrorCode +eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning, + UCHAR const *pucAdditional, USHORT usAdditionalLen ) +{ + eMBErrorCode eStatus = MB_ENOERR; + + /* the first byte and second byte in the buffer is reserved for + * the parameter ucSlaveID and the running flag. The rest of + * the buffer is available for additional data. */ + if( usAdditionalLen + 2 < MB_FUNC_OTHER_REP_SLAVEID_BUF ) + { + usMBSlaveIDLen = 0; + ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID; + ucMBSlaveID[usMBSlaveIDLen++] = ( UCHAR )( xIsRunning ? 0xFF : 0x00 ); + if( usAdditionalLen > 0 ) + { + memcpy( &ucMBSlaveID[usMBSlaveIDLen], pucAdditional, + ( size_t )usAdditionalLen ); + usMBSlaveIDLen += usAdditionalLen; + } + } + else + { + eStatus = MB_ENORES; + } + return eStatus; +} + +eMBException +eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen ) +{ + memcpy( &pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], ( size_t )usMBSlaveIDLen ); + *usLen = ( USHORT )( MB_PDU_DATA_OFF + usMBSlaveIDLen ); + return MB_EX_NONE; +} + +#endif |