| /**************************************************************************** |
| * apps/functions/mbfuncother.c |
| * |
| * FreeModbus Library: 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. |
| * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "port.h" |
| |
| #include "modbus/mb.h" |
| #include "modbus/mbframe.h" |
| #include "modbus/mbproto.h" |
| |
| #ifdef CONFIG_MB_FUNC_OTHER_REP_SLAVEID_ENABLED |
| |
| /**************************************************************************** |
| * Private Data |
| ****************************************************************************/ |
| |
| static uint8_t ucMBSlaveID[CONFIG_MB_FUNC_OTHER_REP_SLAVEID_BUF]; |
| static uint16_t usMBSlaveIDLen; |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| eMBErrorCode eMBSetSlaveID(uint8_t ucSlaveID, bool xIsRunning, |
| uint8_t const *pucAdditional, |
| uint16_t 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 < CONFIG_MB_FUNC_OTHER_REP_SLAVEID_BUF) |
| { |
| usMBSlaveIDLen = 0; |
| ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID; |
| ucMBSlaveID[usMBSlaveIDLen++] = (uint8_t)(xIsRunning ? 0xFF : 0x00); |
| |
| if (usAdditionalLen > 0) |
| { |
| memcpy(&ucMBSlaveID[usMBSlaveIDLen], pucAdditional, |
| (size_t)usAdditionalLen); |
| usMBSlaveIDLen += usAdditionalLen; |
| } |
| } |
| else |
| { |
| eStatus = MB_ENORES; |
| } |
| |
| return eStatus; |
| } |
| |
| eMBException eMBFuncReportSlaveID(uint8_t *pucFrame, uint16_t *usLen) |
| { |
| memcpy(&pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], (size_t)usMBSlaveIDLen); |
| *usLen = (uint16_t)(MB_PDU_DATA_OFF + usMBSlaveIDLen); |
| return MB_EX_NONE; |
| } |
| |
| #endif |