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Merge pull request #2816 from Guozhanxin/freemodebus 

[components] move freemodbus to package.|将freemodbus移到软件包。
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Bernard Xiong 2019-06-28 16:03:39 +08:00 committed by GitHub
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commit 1394700281
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2
components/net/Kconfig
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@ -446,8 +446,6 @@ config RT_USING_LWIP
endmenu
source "$RTT_DIR/components/net/freemodbus/Kconfig"
source "$RTT_DIR/components/net/at/Kconfig"
if RT_USING_LWIP

329
components/net/freemodbus/Changelog.txt
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@ -1,329 +0,0 @@
2013-10-17 (REL_1_6_0) Armink <armink.ztl@gmail.com>
Notes: Added modbus master.
2010-05-06 (REL_1_5_0) Christian Walter <cwalter@embedded-solutions.at>
Notes: Added support for Atmel AT91SAM3S (Cortex M3) for IAR.
Detailed notes:
- FEATURES (ATSAM3S) : Added new port.
2007-08-28 (REL_1_4_0) Christian Walter <wolti@sil.at>:
Notes: Added support for HCS08. Fixed some small bugs in the documentation
for the porting layer.
Detailed notes:
- FEATURES (HCS08) : Added new port.
- BUGS (ALL) : Fixed some small bugs in the porting guide.
2007-07-17 (REL_1_3_0) Christian Walter <wolti@sil.at>:
Notes: Added ARM7/AT91SAM7X port. Added Linux/TCP port from Steven Guo.
Detailed notes:
- FEATURES (ARM7): Added ARM7/AT91SAM7x port.
- FEATURES (LINUX): Added Linux/TCP port from Steven Guo.
- BUGS (ALL): Fixed bug in <eMBFuncReadInputRegister> where the high
byte of the register count was ignored. This does not have a
practical impact because the actual number of registers is always
lower.
2007-07-17 (REL_1_3_0) Christian Walter <wolti@sil.at>:
Notes: Added Linux/TCP port. Fixed bug in MSP430 port.
Detailted notes:
- FEATURE (LINUX): Added Linux/TCP port.
- BUGS (MSP430): Fixed bug with calculating the timer value.
2007-04-25 (REL_1_2_0) Christian Walter <wolti@sil.at>:
Notes: Added LPC214X ARM port with Keil compiler. Added Z8Encore port for
Z8F6422 microcontroller.
Detailed notes:
- FEATURE (ARM): Added LPC214X ARM port for Keil ARM 2.41.
- FEATURE (Z8ENCORE): Added Z8F6422 for Z8Encore using the ZDS II - Z8
Encore! development tools.
2007-02-18 (REL_1_1_2) Christian Walter <wolti@sil.at>:
Notes: Fixed typo with the defined defining the supported Modbus
functions. Fixed bug when illegal slave address was passed to eMBInit
where the error was not detected. Fixed typo in the holding registers
where the frame for write multiple registers was parsed with the wrong
constants. The fix is not critical because the values matched. Fixed bug
in discrete input registers implementation where the frame was not parsed
correctly. Added new support for a CodeWarrior Coldfire port.
Detailed notes:
- BUG (ALL): Modbus functions are compiled into the stack conditionally
by changing the MB_FUNC_XXX defines to either true(1) or false(0).
The defines for MB_FUNC_READ_HOLDING and MB_FUNC_WRITE_HOLDING
were wrong.
- BUG (ALL): eMBInit did not correctly check for addresses. Therefore
is was possible to start the Modbus stack with an address of 0
or one > 247.
- BUG (ALL): eMBFuncWriteHoldingRegister should use
MB_PDU_FUNC_WRITE_MUL_ADDR_OFF and not MB_PDU_FUNC_READ_ADDR_OFF.
- BUG (ALL): eMBFuncReadDiscreteInputs calculated the number of discrete
registers to read wrong.
- FEATURE (ALL): Fixed some warnings in the code.
2006-11-19 (REL_1_1_1) Christian Walter <wolti@sil.at>:
Notes: Fixed bug in Read/Write Multiple Registers function where
the registers addresses where calculated wrong.
Fixed bug in RTU and ASCII with the resource allocation in case of
an error.
Changed license to BSD style licsense.
Detailed notes:
- OTHER (ALL): License is now BSD for protocol stack.
- BUG (ALL): The registers address received in a Modbus frame
must be converted to application addresses. The code for this
conversion was missing and therefore has lead to error when
this function was used (Registers of by one, Start at > 1).
- BUG (ALL): If the serial initialization within the porting fails
a timer is still allocated in eMBRTUInit and eMBASCIIInit. This
can lead to a memory leak depending upon the implementation of the
porting layer.
- FEATURE (MCF5235): Added sample shell scripts for testing.
- FEATURE (MSP430): Added sample shell script for testing and
changed default values to match the other ports.
2006-10-30 (REL_1_1_0) Christian Walter <wolti@sil.at>:
Notes: Added support for Read/Write Multiple Registers function
(0x17). Added some tips to reduce memory requirements.
Added MSP430 Port for GCC and Rowley Crossworks.
Detailed notes:
- FEATURE (MSP430): Added new MSP430 port.
- FEATURE (ALL): Added support for Read/Write Multiple Registers
function (0x17). The implementation simply makes two callbacks
to the eMBRegHoldingCB function where first the values are
written and then the other register values are read.
- FEATURE (ALL): Added some tips on reducing memory requirements
with the protocol stack.
2006-10-30 (REL_1_0_5) Christian Walter <wolti@sil.at>:
Notes: eMBDisable and eMBClose can now be called multiple times
which makes shutdown of the protocol stack easier.
Fixed bug in RTU state machine where we switched from the
error state immediately to the idle state. Correct behaviour
would be to wait till the end of frame.
Added new STR71X GCC port which uses only freely available tools
like GNU ARM, OpenOCD (Wiggler) and GDB.
Detailed notes:
- FEATURE (STR71X): Added GCC standalone port which does not
depend on the Rowley Crosswork tools.
- FEATURE (ALL): eMBDisable can now be called multiple times
and returns MB_ENOERR in case is was already disabled.
eMBClose also supports beeing called multiple times in
which pvMBFrameCloseCur( ) is called when the protocol stack
is in state STATE_DISABLED.
- BUG (RTU): Fixed bug in xMBRTUReceiveFSM where the error
state is immediately left because of a missing break. Instead
we should wait till the damaged frame is finished.
2006-10-11 (REL_1_0_4) Christian Walter <wolti@sil.at>:
Notes: Fixed bug when more than 255 coils are requested. Fixed bug in
Linux/Cygwin port when not all bytes could be written by the first
call to write. Added support for removing previously registered
function handlers.
Detailed notes:
- BUG (ALL): mbfunccoils contained a bug which limited the amount
of coils to read to 255.
- BUG (LINUX): prvbMBPortSerialWrite contained a bug in the loop
which writes the RTU/ASCII frame to the serial file descriptor.
If not all bytes where written in the first call or write was
interrupted the sent frame is corrupted.
- FEATURE (ALL): eMBRegisterCB now supports NULL as handler
argument in which case a previously registered function
handler is deregistered from the protocol stack.
2006-09-27 (REL_1_0_3) Christian Walter <wolti@sil.at>:
Notes: Added new functions to support registering of custom callback
handlers. This makes it possible to implement new Modbus function
codes without touching the protocol stack.
New port for ATMega128 added. Thanks to Richard C Sandoz Jr. for
the patches.
Detailed notes:
- FEATURE (ALL): Added support for registering new functions handlers
with eMBRegisterCB.
- FEATURE (AVR): Added patches from Richard C Sandoz Jr. for ATMega128
2006-09-06 (REL_1_0_2) Christian Walter <wolti@sil.at>:
Notes: Fixed bug in FreeRTOS porting layer for STR71X/lwIP target where
memory is not freed in the sys_arch_thread_remove function.
Synched MCF5235TCP port with the FreeRTOS/lwIP port for the STR71X.
Detailed notes:
- BUG (STR71XTCP): Sys_arch_thread_remove did not free the memory from
the TCB.
- BUG (STR71XTCP): Unnecessary call to vTaskSuspendAll removed.
- BUG (STR71XTCP): Bug with counting variable. The first to lwIP tasks
got the same name (lwIP0).
- FEATURE (MCF5235TCP): Enhanced functions from the STR71X/lwIP port
merged into the Coldfire port.
2006-09-04 (REL_1_0_1) Christian Walter <wolti@sil.at>:
Notes: Fixed bug in serial driver for STR71x target when the ring buffer
overflows.
Detailed notes:
- BUG (STR71XTCP): Under high load the ring buffer in the serial driver
functions might overflow. There was an error with counting the number
of received characters which corrupted received frames.
Now receiver correctly recovers in case of dropped bytes.
2006-09-04 (REL_1_0) Christian Walter <wolti@sil.at>:
Notes: Added support for ATmega8, ATmega16, ATmega32, ATmega169 and
RS485 drivers in the AVR support. Special thanks to Tran Minh Hoang
for his contribution.
Added a new lwIP port for the STR71X target which uses one serial
interface for a PPP connection. This can be used for remote Modbus/TCP
devices in combination with a Modem (E.g. GPRS or Analog).
Detailed notes:
- FEATURES (AVR): Integrated patches from Tran Minh Hoang to support the
ATmega8, ATmega16, ATmega32, ATmega169 controllers.
- FEATURES (AVR): Added support for RS485 drivers in the AVR code. The
example supports the DS76176.
- FEATURES (STR71XTCP): implemented function in STR71X/lwIP porting layer
to remove running tasks.
- FEATURES (STR71XTCP): added new thread creation function in STR71X/lwIP
porting layer which allows specifing the stack size.
- BUGS (STR71XTCP): pppOpen defined in ppp.c does not check the return
value of sys_thread_new. If task creation fails the system crashes.
- BUGS (STR71XTCP): pppMain must not return - Instead it should remove
its task from the scheduler.
2006-08-30 (REL_9) Christian Walter <wolti@sil.at>:
Notes: Added lwIP port for the MCF5235 target. The lwIP part is
generic and therefore FreeModbus now works on any target with
lwIP support.
Detailed notes:
- FEATURES: Incoperated MCF5235 FreeRTOS/lwIP port done by the
author in this project.
- FEATURES: Added lwIP port for FreeModbus
- FEATURES: Added demo application for FreeModbus and lwIP.
2006-08-22 (REL_0_82) Christian Walter <wolti@sil.at>
Notes: Fixed bug with Modbus ASCII support
Detailed notes:
- BUG: During the last upgrade an error was introduced in the
initialization code of Modbus ASCII and therefore ASCII
support was broken. The bug is fixed now and was tested with
the Win32 port.
2006-08-22 (REL_0_81) Christian Walter <wolti@sil.at>
Notes: Added porting guide
Detailed notes:
- OTHER: Added a new porting guide to the documentation.
- OTHER: Added a empty example for new ports to the project as a
starting point.
2006-08-01 (REL_0_8) Christian Walter <wolti@sil.at>
Notes: Added Linux RTU/ASCII port.
Detailed notes:
- FEATURES: Added a new Linux RTU/ASCII port. The port should work
on any Linux distribution and it should be possible to run it
on uCLinux.
2006-06-26 (REL_0_7) Christian Walter <wolti@sil.at>
Notes: Changed the WIN32 serial port to better fit into the design.
Detailed notes:
- OTHER: Design of the WIN32 serial port changed. The polling function
for the serial device are now called from the event loop.
- OTHER: Debugging uses the same interface as the WIN32/TCP port.
2006-06-25 Christian Walter <wolti@sil.at>
Notes: Initial work on a Modbus/TCP port is available. The port includes
an example for a Win32 port which uses the Winsock API.
Detailed notes:
- FEATURES: added required functions to core protocol stack to support
a Modbus/TCP implementation.
- FEATURES: added a Win32 port for the Modbus/TCP core. The port is
currently limited to one concurrent client.
- OTHER: The implementation of eMBClose to shutdown the protocol stack
was changed to unify it with the new Modbus/TCP code.
-
2006-06-18 Christian Walter <wolti@sil.at>
Detailed notes:
- OTHER: while working on the Win32 port some line feeds got
wrong. Also some source files used tabs instead of spaces.
- OTHER: prototypes for xMBUtilSetBits and xMBUtilGetBits fixed.
usNBits should be ucNBits by convention.
2006-06-17 Christian Walter <wolti@sil.at>
Notes: Fixed various bugs with the Win32 port
Detailed notes:
- FEATURES: implement shutdown functionality for protocol stack.
- FEATURES: protocol stack can be enabled and disabled during runtime.
- FEATURES: interface functions now do more error checking. For
example if eMBPool is called in an uninitialized state.
- FEATURES: extended Win32 demo application to use the new features.
- BUG: fixed bug in Win32 demo for ASCII mode.
2006-06-16 Christian Walter <wolti@sil.at>
Notes: The new version includes a new port for the
Win32 platform
Detailed notes:
- FEATURES: added Win32 platform
2006-05-14 Christian Walter <wolti@sil.at>
Notes: The new version includes a new port for the
Freescale MCF5235 processor.
Detailed notes:
- FEATURES: added new MCF5235 port.
- OTHER: fixed some missing code headers.
2006-05-01 Christian Walter <wolti@sil.at>
Notes: This version removes the t1.5 timers from the Modbus RTU
implementation because no one actually uses it and the CPU
load is very high. T
In addition some documentation cleanups has been done and the
ARM demo has been updated.
Detailed notes:
- FEATURES: the t1.5 timeout has been removed. Therefore only
one timer is required.
- BUG: the ARM demo project missed some files in the project
workspace and did not compile cleanly
2006-02-28 Christian Walter <wolti@sil.at>
Notes: This version includes support for two new command
(write multiple coils, read discrete input)
Detailed notes:
- BUG: some function used the wrong data types
- FEATURES: added support for write multiple coils function.
- FEATURES: added support for read discrete input.
- OTHER: some code cleanups with lint tool.
2006-02-28 Christian Walter <wolti@sil.at>
Notes: The new version 0.31 adds support for reading and writing the
coil registers and add some bug fixes.
Detailed notes:
- BUG: fixed bug with to small modbus requests being ignored.
- FEATURES: added support for write single coil function.
- FEATURES: added support for working with byte packed bit fields
to support coils and discrete inputs better.
- API: API for set slave id functions changed.
2006-02-26 Christian Walter <wolti@sil.at>
Notes: First public release which includes an ARM and AVR port.

27
components/net/freemodbus/Kconfig
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@ -1,27 +0,0 @@
menu "Modbus master and slave stack"
config RT_USING_MODBUS
bool "Enable Modbus stack"
default n
if RT_USING_MODBUS
config RT_MODBUS_MASTER_RTU
bool "RTU master mode"
default n
config RT_MODBUS_SLAVE_RTU
bool "RTU slave mode"
default n
if RT_MODBUS_SLAVE_RTU
config RT_MODBUS_SLAVE_USE_CONTROL_PIN
bool "Use Contorl Pin"
default n
if RT_MODBUS_SLAVE_USE_CONTROL_PIN
config MODBUS_SLAVE_RT_CONTROL_PIN_INDEX
int "pin index for RS485 TX/RX select"
default 10
endif
endif
endif
endmenu

77
components/net/freemodbus/SConscript
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@ -1,77 +0,0 @@
Import('RTT_ROOT')
from building import *
src = Split("""
modbus/functions/mbfuncdiag.c
modbus/functions/mbutils.c
modbus/functions/mbfuncother.c
modbus/rtu/mbcrc.c
port/port.c
""")
master_rtu_src = Split("""
modbus/functions/mbfunccoils_m.c
modbus/functions/mbfuncdisc_m.c
modbus/functions/mbfuncholding_m.c
modbus/functions/mbfuncinput_m.c
modbus/rtu/mbrtu_m.c
modbus/mb_m.c
port/portevent_m.c
port/portserial_m.c
port/porttimer_m.c
port/user_mb_app_m.c
""")
slave_rtu_src = Split("""
modbus/functions/mbfunccoils.c
modbus/functions/mbfuncdisc.c
modbus/functions/mbfuncholding.c
modbus/functions/mbfuncinput.c
modbus/rtu/mbrtu.c
modbus/mb.c
port/portevent.c
port/portserial.c
port/porttimer.c
port/user_mb_app.c
""")
master_slave_rtu_src = Split("""
modbus/functions/mbfunccoils.c
modbus/functions/mbfunccoils_m.c
modbus/functions/mbfuncdisc.c
modbus/functions/mbfuncdisc_m.c
modbus/functions/mbfuncholding.c
modbus/functions/mbfuncholding_m.c
modbus/functions/mbfuncinput.c
modbus/functions/mbfuncinput_m.c
modbus/rtu/mbrtu.c
modbus/rtu/mbrtu_m.c
modbus/mb.c
modbus/mb_m.c
port/portevent.c
port/portevent_m.c
port/portserial.c
port/portserial_m.c
port/porttimer.c
port/porttimer_m.c
port/user_mb_app.c
port/user_mb_app_m.c
""")
# The set of source files associated with this SConscript file.
path = [GetCurrentDir() + '/modbus/include',
GetCurrentDir() + '/modbus/rtu',
GetCurrentDir() + '/port']
if GetDepend(['RT_MODBUS_MASTER_RTU']):
src += master_rtu_src
if GetDepend(['RT_MODBUS_SLAVE_RTU']):
src += slave_rtu_src
if GetDepend(['RT_MODBUS_MASTER_SLAVE_RTU']):
src += master_slave_rtu_src
group = DefineGroup('FreeModbus', src, depend = ['RT_USING_MODBUS'], CPPPATH = path)
Return('group')

25
components/net/freemodbus/bsd.txt
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@ -1,25 +0,0 @@
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.

340
components/net/freemodbus/gpl.txt
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@ -1,340 +0,0 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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Foundation's software and to any other program whose authors commit to
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When we speak of free software, we are referring to freedom, not
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To protect your rights, we need to make restrictions that forbid
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These restrictions translate to certain responsibilities for you if you
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How to Apply These Terms to Your New Programs
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This General Public License does not permit incorporating your program into
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GNU LESSER GENERAL PUBLIC LICENSE
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How to Apply These Terms to Your New Libraries
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<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!

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/*
* 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
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* 1. Redistributions of source code must retain the above copyright
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* 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: mbascii.c,v 1.15 2007/02/18 23:46:48 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbconfig.h"
#include "mbascii.h"
#include "mbframe.h"
#include "mbcrc.h"
#include "mbport.h"
#if MB_SLAVE_ASCII_ENABLED > 0
/* ----------------------- Defines ------------------------------------------*/
#define MB_ASCII_DEFAULT_CR '\r' /*!< Default CR character for Modbus ASCII. */
#define MB_ASCII_DEFAULT_LF '\n' /*!< Default LF character for Modbus ASCII. */
#define MB_SER_PDU_SIZE_MIN 3 /*!< Minimum size of a Modbus ASCII frame. */
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus ASCII frame. */
#define MB_SER_PDU_SIZE_LRC 1 /*!< Size of LRC field in PDU. */
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
STATE_RX_IDLE, /*!< Receiver is in idle state. */
STATE_RX_RCV, /*!< Frame is beeing received. */
STATE_RX_WAIT_EOF /*!< Wait for End of Frame. */
} eMBRcvState;
typedef enum
{
STATE_TX_IDLE, /*!< Transmitter is in idle state. */
STATE_TX_START, /*!< Starting transmission (':' sent). */
STATE_TX_DATA, /*!< Sending of data (Address, Data, LRC). */
STATE_TX_END, /*!< End of transmission. */
STATE_TX_NOTIFY /*!< Notify sender that the frame has been sent. */
} eMBSndState;
typedef enum
{
BYTE_HIGH_NIBBLE, /*!< Character for high nibble of byte. */
BYTE_LOW_NIBBLE /*!< Character for low nibble of byte. */
} eMBBytePos;
/* ----------------------- Static functions ---------------------------------*/
static UCHAR prvucMBCHAR2BIN( UCHAR ucCharacter );
static UCHAR prvucMBBIN2CHAR( UCHAR ucByte );
static UCHAR prvucMBLRC( UCHAR * pucFrame, USHORT usLen );
/* ----------------------- Static variables ---------------------------------*/
static volatile eMBSndState eSndState;
static volatile eMBRcvState eRcvState;
/* We reuse the Modbus RTU buffer because only one buffer is needed and the
* RTU buffer is bigger. */
extern volatile UCHAR ucRTUBuf[];
static volatile UCHAR *ucASCIIBuf = ucRTUBuf;
static volatile USHORT usRcvBufferPos;
static volatile eMBBytePos eBytePos;
static volatile UCHAR *pucSndBufferCur;
static volatile USHORT usSndBufferCount;
static volatile UCHAR ucLRC;
static volatile UCHAR ucMBLFCharacter;
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBASCIIInit( UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
( void )ucSlaveAddress;
ENTER_CRITICAL_SECTION( );
ucMBLFCharacter = MB_ASCII_DEFAULT_LF;
if( xMBPortSerialInit( ucPort, ulBaudRate, 7, eParity ) != TRUE )
{
eStatus = MB_EPORTERR;
}
else if( xMBPortTimersInit( MB_ASCII_TIMEOUT_SEC * 20000UL ) != TRUE )
{
eStatus = MB_EPORTERR;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
void
eMBASCIIStart( void )
{
ENTER_CRITICAL_SECTION( );
vMBPortSerialEnable( TRUE, FALSE );
eRcvState = STATE_RX_IDLE;
EXIT_CRITICAL_SECTION( );
/* No special startup required for ASCII. */
( void )xMBPortEventPost( EV_READY );
}
void
eMBASCIIStop( void )
{
ENTER_CRITICAL_SECTION( );
vMBPortSerialEnable( FALSE, FALSE );
vMBPortTimersDisable( );
EXIT_CRITICAL_SECTION( );
}
eMBErrorCode
eMBASCIIReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
{
eMBErrorCode eStatus = MB_ENOERR;
ENTER_CRITICAL_SECTION( );
assert( usRcvBufferPos < MB_SER_PDU_SIZE_MAX );
/* Length and CRC check */
if( ( usRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
&& ( prvucMBLRC( ( UCHAR * ) ucASCIIBuf, usRcvBufferPos ) == 0 ) )
{
/* Save the address field. All frames are passed to the upper layed
* and the decision if a frame is used is done there.
*/
*pucRcvAddress = ucASCIIBuf[MB_SER_PDU_ADDR_OFF];
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
* size of address field and CRC checksum.
*/
*pusLength = ( USHORT )( usRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_LRC );
/* Return the start of the Modbus PDU to the caller. */
*pucFrame = ( UCHAR * ) & ucASCIIBuf[MB_SER_PDU_PDU_OFF];
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
eMBErrorCode
eMBASCIISend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
{
eMBErrorCode eStatus = MB_ENOERR;
UCHAR usLRC;
ENTER_CRITICAL_SECTION( );
/* Check if the receiver is still in idle state. If not we where to
* slow with processing the received frame and the master sent another
* frame on the network. We have to abort sending the frame.
*/
if( eRcvState == STATE_RX_IDLE )
{
/* First byte before the Modbus-PDU is the slave address. */
pucSndBufferCur = ( UCHAR * ) pucFrame - 1;
usSndBufferCount = 1;
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
pucSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
usSndBufferCount += usLength;
/* Calculate LRC checksum for Modbus-Serial-Line-PDU. */
usLRC = prvucMBLRC( ( UCHAR * ) pucSndBufferCur, usSndBufferCount );
ucASCIIBuf[usSndBufferCount++] = usLRC;
/* Activate the transmitter. */
eSndState = STATE_TX_START;
vMBPortSerialEnable( FALSE, TRUE );
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
BOOL
xMBASCIIReceiveFSM( void )
{
BOOL xNeedPoll = FALSE;
UCHAR ucByte;
UCHAR ucResult;
assert( eSndState == STATE_TX_IDLE );
( void )xMBPortSerialGetByte( ( CHAR * ) & ucByte );
switch ( eRcvState )
{
/* A new character is received. If the character is a ':' the input
* buffer is cleared. A CR-character signals the end of the data
* block. Other characters are part of the data block and their
* ASCII value is converted back to a binary representation.
*/
case STATE_RX_RCV:
/* Enable timer for character timeout. */
vMBPortTimersEnable( );
if( ucByte == ':' )
{
/* Empty receive buffer. */
eBytePos = BYTE_HIGH_NIBBLE;
usRcvBufferPos = 0;
}
else if( ucByte == MB_ASCII_DEFAULT_CR )
{
eRcvState = STATE_RX_WAIT_EOF;
}
else
{
ucResult = prvucMBCHAR2BIN( ucByte );
switch ( eBytePos )
{
/* High nibble of the byte comes first. We check for
* a buffer overflow here. */
case BYTE_HIGH_NIBBLE:
if( usRcvBufferPos < MB_SER_PDU_SIZE_MAX )
{
ucASCIIBuf[usRcvBufferPos] = ( UCHAR )( ucResult << 4 );
eBytePos = BYTE_LOW_NIBBLE;
break;
}
else
{
/* not handled in Modbus specification but seems
* a resonable implementation. */
eRcvState = STATE_RX_IDLE;
/* Disable previously activated timer because of error state. */
vMBPortTimersDisable( );
}
break;
case BYTE_LOW_NIBBLE:
ucASCIIBuf[usRcvBufferPos++] |= ucResult;
eBytePos = BYTE_HIGH_NIBBLE;
break;
}
}
break;
case STATE_RX_WAIT_EOF:
if( ucByte == ucMBLFCharacter )
{
/* Disable character timeout timer because all characters are
* received. */
vMBPortTimersDisable( );
/* Receiver is again in idle state. */
eRcvState = STATE_RX_IDLE;
/* Notify the caller of eMBASCIIReceive that a new frame
* was received. */
xNeedPoll = xMBPortEventPost( EV_FRAME_RECEIVED );
}
else if( ucByte == ':' )
{
/* Empty receive buffer and back to receive state. */
eBytePos = BYTE_HIGH_NIBBLE;
usRcvBufferPos = 0;
eRcvState = STATE_RX_RCV;
/* Enable timer for character timeout. */
vMBPortTimersEnable( );
}
else
{
/* Frame is not okay. Delete entire frame. */
eRcvState = STATE_RX_IDLE;
}
break;
case STATE_RX_IDLE:
if( ucByte == ':' )
{
/* Enable timer for character timeout. */
vMBPortTimersEnable( );
/* Reset the input buffers to store the frame. */
usRcvBufferPos = 0;;
eBytePos = BYTE_HIGH_NIBBLE;
eRcvState = STATE_RX_RCV;
}
break;
}
return xNeedPoll;
}
BOOL
xMBASCIITransmitFSM( void )
{
BOOL xNeedPoll = FALSE;
UCHAR ucByte;
assert( eRcvState == STATE_RX_IDLE );
switch ( eSndState )
{
/* Start of transmission. The start of a frame is defined by sending
* the character ':'. */
case STATE_TX_START:
ucByte = ':';
xMBPortSerialPutByte( ( CHAR )ucByte );
eSndState = STATE_TX_DATA;
eBytePos = BYTE_HIGH_NIBBLE;
break;
/* Send the data block. Each data byte is encoded as a character hex
* stream with the high nibble sent first and the low nibble sent
* last. If all data bytes are exhausted we send a '\r' character
* to end the transmission. */
case STATE_TX_DATA:
if( usSndBufferCount > 0 )
{
switch ( eBytePos )
{
case BYTE_HIGH_NIBBLE:
ucByte = prvucMBBIN2CHAR( ( UCHAR )( *pucSndBufferCur >> 4 ) );
xMBPortSerialPutByte( ( CHAR ) ucByte );
eBytePos = BYTE_LOW_NIBBLE;
break;
case BYTE_LOW_NIBBLE:
ucByte = prvucMBBIN2CHAR( ( UCHAR )( *pucSndBufferCur & 0x0F ) );
xMBPortSerialPutByte( ( CHAR )ucByte );
pucSndBufferCur++;
eBytePos = BYTE_HIGH_NIBBLE;
usSndBufferCount--;
break;
}
}
else
{
xMBPortSerialPutByte( MB_ASCII_DEFAULT_CR );
eSndState = STATE_TX_END;
}
break;
/* Finish the frame by sending a LF character. */
case STATE_TX_END:
xMBPortSerialPutByte( ( CHAR )ucMBLFCharacter );
/* We need another state to make sure that the CR character has
* been sent. */
eSndState = STATE_TX_NOTIFY;
break;
/* Notify the task which called eMBASCIISend that the frame has
* been sent. */
case STATE_TX_NOTIFY:
eSndState = STATE_TX_IDLE;
xNeedPoll = xMBPortEventPost( EV_FRAME_SENT );
/* Disable transmitter. This prevents another transmit buffer
* empty interrupt. */
vMBPortSerialEnable( TRUE, FALSE );
eSndState = STATE_TX_IDLE;
break;
/* We should not get a transmitter event if the transmitter is in
* idle state. */
case STATE_TX_IDLE:
/* enable receiver/disable transmitter. */
vMBPortSerialEnable( TRUE, FALSE );
break;
}
return xNeedPoll;
}
BOOL
xMBASCIITimerT1SExpired( void )
{
switch ( eRcvState )
{
/* If we have a timeout we go back to the idle state and wait for
* the next frame.
*/
case STATE_RX_RCV:
case STATE_RX_WAIT_EOF:
eRcvState = STATE_RX_IDLE;
break;
default:
assert( ( eRcvState == STATE_RX_RCV ) || ( eRcvState == STATE_RX_WAIT_EOF ) );
break;
}
vMBPortTimersDisable( );
/* no context switch required. */
return FALSE;
}
static UCHAR
prvucMBCHAR2BIN( UCHAR ucCharacter )
{
if( ( ucCharacter >= '0' ) && ( ucCharacter <= '9' ) )
{
return ( UCHAR )( ucCharacter - '0' );
}
else if( ( ucCharacter >= 'A' ) && ( ucCharacter <= 'F' ) )
{
return ( UCHAR )( ucCharacter - 'A' + 0x0A );
}
else
{
return 0xFF;
}
}
static UCHAR
prvucMBBIN2CHAR( UCHAR ucByte )
{
if( ucByte <= 0x09 )
{
return ( UCHAR )( '0' + ucByte );
}
else if( ( ucByte >= 0x0A ) && ( ucByte <= 0x0F ) )
{
return ( UCHAR )( ucByte - 0x0A + 'A' );
}
else
{
/* Programming error. */
assert( 0 );
}
return '0';
}
static UCHAR
prvucMBLRC( UCHAR * pucFrame, USHORT usLen )
{
UCHAR ucLRC = 0; /* LRC char initialized */
while( usLen-- )
{
ucLRC += *pucFrame++; /* Add buffer byte without carry */
}
/* Return twos complement */
ucLRC = ( UCHAR ) ( -( ( CHAR ) ucLRC ) );
return ucLRC;
}
#endif

56
components/net/freemodbus/modbus/ascii/mbascii.h
View File

@ -1,56 +0,0 @@
/*
* 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: mbascii.h,v 1.8 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_ASCII_H
#define _MB_ASCII_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
#if MB_SLAVE_ASCII_ENABLED > 0
eMBErrorCode eMBASCIIInit( UCHAR slaveAddress, UCHAR ucPort,
ULONG ulBaudRate, eMBParity eParity );
void eMBASCIIStart( void );
void eMBASCIIStop( void );
eMBErrorCode eMBASCIIReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame,
USHORT * pusLength );
eMBErrorCode eMBASCIISend( UCHAR slaveAddress, const UCHAR * pucFrame,
USHORT usLength );
BOOL xMBASCIIReceiveFSM( void );
BOOL xMBASCIITransmitFSM( void );
BOOL xMBASCIITimerT1SExpired( void );
#endif
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

269
components/net/freemodbus/modbus/functions/mbfunccoils.c
View File

@ -1,269 +0,0 @@
/*
* 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: mbfunccoils.c,v 1.8 2007/02/18 23:47:16 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"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_COILCNT_MAX ( 0x07D0 )
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_FUNC_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
#define MB_PDU_FUNC_WRITE_MUL_SIZE_MIN ( 5 )
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_MAX ( 0x07B0 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_READ_COILS_ENABLED > 0
eMBException
eMBFuncReadCoils( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usCoilCount;
UCHAR ucNBytes;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usCoilCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF] << 8 );
usCoilCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usCoilCount >= 1 ) &&
( usCoilCount < MB_PDU_FUNC_READ_COILCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_COILS;
*usLen += 1;
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usCoilCount & 0x0007 ) != 0 )
{
ucNBytes = ( UCHAR )( usCoilCount / 8 + 1 );
}
else
{
ucNBytes = ( UCHAR )( usCoilCount / 8 );
}
*pucFrameCur++ = ucNBytes;
*usLen += 1;
eRegStatus =
eMBRegCoilsCB( pucFrameCur, usRegAddress, usCoilCount,
MB_REG_READ );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting address
* and the quantity of registers. We reuse the old values in the
* buffer because they are still valid. */
*usLen += ucNBytes;;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
eMBException
eMBFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
UCHAR ucBuf[2];
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
usRegAddress++;
if( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF + 1] == 0x00 ) &&
( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF ) ||
( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0x00 ) ) )
{
ucBuf[1] = 0;
if( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF )
{
ucBuf[0] = 1;
}
else
{
ucBuf[0] = 0;
}
eRegStatus =
eMBRegCoilsCB( &ucBuf[0], usRegAddress, 1, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
eMBException
eMBFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usCoilCnt;
UCHAR ucByteCount;
UCHAR ucByteCountVerify;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen > ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
usRegAddress++;
usCoilCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF] << 8 );
usCoilCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF + 1] );
ucByteCount = pucFrame[MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF];
/* Compute the number of expected bytes in the request. */
if( ( usCoilCnt & 0x0007 ) != 0 )
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 + 1 );
}
else
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 );
}
if( ( usCoilCnt >= 1 ) &&
( usCoilCnt <= MB_PDU_FUNC_WRITE_MUL_COILCNT_MAX ) &&
( ucByteCountVerify == ucByteCount ) )
{
eRegStatus =
eMBRegCoilsCB( &pucFrame[MB_PDU_FUNC_WRITE_MUL_VALUES_OFF],
usRegAddress, usCoilCnt, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting address
* and the quantity of registers. We reuse the old values in the
* buffer because they are still valid. */
*usLen = MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif

390
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@ -1,390 +0,0 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* 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: mbfunccoils_m.c,v 1.60 2013/10/12 15:10:12 Armink Add Master Functions
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
#define MB_PDU_REQ_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_REQ_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_WRITE_SIZE ( 4 )
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
#define MB_PDU_REQ_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_REQ_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_REQ_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
#define MB_PDU_REQ_WRITE_MUL_SIZE_MIN ( 5 )
#define MB_PDU_REQ_WRITE_MUL_COILCNT_MAX ( 0x07B0 )
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_MUL_SIZE ( 5 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#if MB_FUNC_READ_COILS_ENABLED > 0
/**
* This function will request read coil.
*
* @param ucSndAddr salve address
* @param usCoilAddr coil start address
* @param usNCoils coil total number
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqReadCoils( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usNCoils ,LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_COILS;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usCoilAddr >> 8;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usCoilAddr;
ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF ] = usNCoils >> 8;
ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF + 1] = usNCoils;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncReadCoils( UCHAR * pucFrame, USHORT * usLen )
{
UCHAR *ucMBFrame;
USHORT usRegAddress;
USHORT usCoilCount;
UCHAR ucByteCount;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, and it's read mode. This request don't need execute. */
if ( xMBMasterRequestIsBroadcast() )
{
eStatus = MB_EX_NONE;
}
else if ( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
usRegAddress++;
usCoilCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF] << 8 );
usCoilCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF + 1] );
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usCoilCount & 0x0007 ) != 0 )
{
ucByteCount = ( UCHAR )( usCoilCount / 8 + 1 );
}
else
{
ucByteCount = ( UCHAR )( usCoilCount / 8 );
}
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usCoilCount >= 1 ) &&
( ucByteCount == pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF] ) )
{
/* Make callback to fill the buffer. */
eRegStatus = eMBMasterRegCoilsCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usCoilCount, MB_REG_READ );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
/**
* This function will request write one coil.
*
* @param ucSndAddr salve address
* @param usCoilAddr coil start address
* @param usCoilData data to be written
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*
* @see eMBMasterReqWriteMultipleCoils
*/
eMBMasterReqErrCode
eMBMasterReqWriteCoil( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usCoilData, LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( ( usCoilData != 0xFF00 ) && ( usCoilData != 0x0000 ) ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_SINGLE_COIL;
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF] = usCoilAddr >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF + 1] = usCoilAddr;
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF ] = usCoilData >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF + 1] = usCoilData;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
UCHAR ucBuf[2];
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
usRegAddress++;
if( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF + 1] == 0x00 ) &&
( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF ) ||
( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0x00 ) ) )
{
ucBuf[1] = 0;
if( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF )
{
ucBuf[0] = 1;
}
else
{
ucBuf[0] = 0;
}
eRegStatus =
eMBMasterRegCoilsCB( &ucBuf[0], usRegAddress, 1, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
/**
* This function will request write multiple coils.
*
* @param ucSndAddr salve address
* @param usCoilAddr coil start address
* @param usNCoils coil total number
* @param usCoilData data to be written
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*
* @see eMBMasterReqWriteCoil
*/
eMBMasterReqErrCode
eMBMasterReqWriteMultipleCoils( UCHAR ucSndAddr,
USHORT usCoilAddr, USHORT usNCoils, UCHAR * pucDataBuffer, LONG lTimeOut)
{
UCHAR *ucMBFrame;
USHORT usRegIndex = 0;
UCHAR ucByteCount;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( usNCoils > MB_PDU_REQ_WRITE_MUL_COILCNT_MAX ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_MULTIPLE_COILS;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] = usCoilAddr >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] = usCoilAddr;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_COILCNT_OFF] = usNCoils >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_COILCNT_OFF + 1] = usNCoils ;
if( ( usNCoils & 0x0007 ) != 0 )
{
ucByteCount = ( UCHAR )( usNCoils / 8 + 1 );
}
else
{
ucByteCount = ( UCHAR )( usNCoils / 8 );
}
ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF] = ucByteCount;
ucMBFrame += MB_PDU_REQ_WRITE_MUL_VALUES_OFF;
while( ucByteCount > usRegIndex)
{
*ucMBFrame++ = pucDataBuffer[usRegIndex++];
}
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_MUL_SIZE_MIN + ucByteCount );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usCoilCnt;
UCHAR ucByteCount;
UCHAR ucByteCountVerify;
UCHAR *ucMBFrame;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, the *usLen is not need check. */
if( ( *usLen == MB_PDU_FUNC_WRITE_MUL_SIZE ) || xMBMasterRequestIsBroadcast() )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
usRegAddress++;
usCoilCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF] << 8 );
usCoilCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF + 1] );
ucByteCount = ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF];
/* Compute the number of expected bytes in the request. */
if( ( usCoilCnt & 0x0007 ) != 0 )
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 + 1 );
}
else
{
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 );
}
if( ( usCoilCnt >= 1 ) && ( ucByteCountVerify == ucByteCount ) )
{
eRegStatus =
eMBMasterRegCoilsCB( &ucMBFrame[MB_PDU_REQ_WRITE_MUL_VALUES_OFF],
usRegAddress, usCoilCnt, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid write coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#endif

29
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@ -1,29 +0,0 @@
/*
* 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: mbfuncdiag.c,v 1.3 2006/12/07 22:10:34 wolti Exp $
*/

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/*
* FreeRTOS Modbus Libary: A Modbus serial implementation for FreeRTOS
* Copyright (C) 2006 Christian Walter <wolti@sil.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* ----------------------- 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"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_DISCCNT_MAX ( 0x07D0 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_READ_COILS_ENABLED > 0
eMBException
eMBFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usDiscreteCnt;
UCHAR ucNBytes;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usDiscreteCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF] << 8 );
usDiscreteCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usDiscreteCnt >= 1 ) &&
( usDiscreteCnt < MB_PDU_FUNC_READ_DISCCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_DISCRETE_INPUTS;
*usLen += 1;
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usDiscreteCnt & 0x0007 ) != 0 )
{
ucNBytes = ( UCHAR ) ( usDiscreteCnt / 8 + 1 );
}
else
{
ucNBytes = ( UCHAR ) ( usDiscreteCnt / 8 );
}
*pucFrameCur++ = ucNBytes;
*usLen += 1;
eRegStatus =
eMBRegDiscreteCB( pucFrameCur, usRegAddress, usDiscreteCnt );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting address
* and the quantity of registers. We reuse the old values in the
* buffer because they are still valid. */
*usLen += ucNBytes;;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif

162
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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* 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: mbfuncdisc_m.c,v 1.60 2013/10/15 8:48:20 Armink Add Master Functions Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
/**
* This function will request read discrete inputs.
*
* @param ucSndAddr salve address
* @param usDiscreteAddr discrete start address
* @param usNDiscreteIn discrete total number
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqReadDiscreteInputs( UCHAR ucSndAddr, USHORT usDiscreteAddr, USHORT usNDiscreteIn, LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_DISCRETE_INPUTS;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usDiscreteAddr >> 8;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usDiscreteAddr;
ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF ] = usNDiscreteIn >> 8;
ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF + 1] = usNDiscreteIn;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usDiscreteCnt;
UCHAR ucNBytes;
UCHAR *ucMBFrame;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, and it's read mode. This request don't need execute. */
if ( xMBMasterRequestIsBroadcast() )
{
eStatus = MB_EX_NONE;
}
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
usRegAddress++;
usDiscreteCnt = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF] << 8 );
usDiscreteCnt |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF + 1] );
/* Test if the quantity of coils is a multiple of 8. If not last
* byte is only partially field with unused coils set to zero. */
if( ( usDiscreteCnt & 0x0007 ) != 0 )
{
ucNBytes = ( UCHAR )( usDiscreteCnt / 8 + 1 );
}
else
{
ucNBytes = ( UCHAR )( usDiscreteCnt / 8 );
}
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if ((usDiscreteCnt >= 1) && ucNBytes == pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF])
{
/* Make callback to fill the buffer. */
eRegStatus = eMBMasterRegDiscreteCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usDiscreteCnt );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read coil register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#endif

308
components/net/freemodbus/modbus/functions/mbfuncholding.c
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@ -1,308 +0,0 @@
/*
* 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: mbfuncholding.c,v 1.12 2007/02/18 23:48:22 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"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
#define MB_PDU_FUNC_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_FUNC_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
#define MB_PDU_FUNC_WRITE_MUL_SIZE_MIN ( 5 )
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ( 0x0078 )
#define MB_PDU_FUNC_READWRITE_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF ( MB_PDU_DATA_OFF + 6 )
#define MB_PDU_FUNC_READWRITE_BYTECNT_OFF ( MB_PDU_DATA_OFF + 8 )
#define MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF ( MB_PDU_DATA_OFF + 9 )
#define MB_PDU_FUNC_READWRITE_SIZE_MIN ( 9 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
eMBException
eMBFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
usRegAddress++;
/* Make callback to update the value. */
eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF],
usRegAddress, 1, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
eMBException
eMBFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usRegCount;
UCHAR ucRegByteCount;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= ( MB_PDU_FUNC_WRITE_MUL_SIZE_MIN + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF + 1] );
ucRegByteCount = pucFrame[MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF];
if( ( usRegCount >= 1 ) &&
( usRegCount <= MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ) &&
( ucRegByteCount == ( UCHAR ) ( 2 * usRegCount ) ) )
{
/* Make callback to update the register values. */
eRegStatus =
eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_MUL_VALUES_OFF],
usRegAddress, usRegCount, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
/* The response contains the function code, the starting
* address and the quantity of registers. We reuse the
* old values in the buffer because they are still valid.
*/
*usLen = MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
eMBException
eMBFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usRegCount;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usRegCount >= 1 ) && ( usRegCount <= MB_PDU_FUNC_READ_REGCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_HOLDING_REGISTER;
*usLen += 1;
/* Second byte in the response contain the number of bytes. */
*pucFrameCur++ = ( UCHAR ) ( usRegCount * 2 );
*usLen += 1;
/* Make callback to fill the buffer. */
eRegStatus = eMBRegHoldingCB( pucFrameCur, usRegAddress, usRegCount, MB_REG_READ );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
*usLen += usRegCount * 2;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
eMBException
eMBFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegReadAddress;
USHORT usRegReadCount;
USHORT usRegWriteAddress;
USHORT usRegWriteCount;
UCHAR ucRegWriteByteCount;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen >= ( MB_PDU_FUNC_READWRITE_SIZE_MIN + MB_PDU_SIZE_MIN ) )
{
usRegReadAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF] << 8U );
usRegReadAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF + 1] );
usRegReadAddress++;
usRegReadCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF] << 8U );
usRegReadCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF + 1] );
usRegWriteAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF] << 8U );
usRegWriteAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF + 1] );
usRegWriteAddress++;
usRegWriteCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF] << 8U );
usRegWriteCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF + 1] );
ucRegWriteByteCount = pucFrame[MB_PDU_FUNC_READWRITE_BYTECNT_OFF];
if( ( usRegReadCount >= 1 ) && ( usRegReadCount <= 0x7D ) &&
( usRegWriteCount >= 1 ) && ( usRegWriteCount <= 0x79 ) &&
( ( 2 * usRegWriteCount ) == ucRegWriteByteCount ) )
{
/* Make callback to update the register values. */
eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF],
usRegWriteAddress, usRegWriteCount, MB_REG_WRITE );
if( eRegStatus == MB_ENOERR )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READWRITE_MULTIPLE_REGISTERS;
*usLen += 1;
/* Second byte in the response contain the number of bytes. */
*pucFrameCur++ = ( UCHAR ) ( usRegReadCount * 2 );
*usLen += 1;
/* Make the read callback. */
eRegStatus =
eMBRegHoldingCB( pucFrameCur, usRegReadAddress, usRegReadCount, MB_REG_READ );
if( eRegStatus == MB_ENOERR )
{
*usLen += 2 * usRegReadCount;
}
}
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
return eStatus;
}
#endif

455
components/net/freemodbus/modbus/functions/mbfuncholding_m.c
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@ -1,455 +0,0 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* 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: mbfuncholding_m.c,v 1.60 2013/09/02 14:13:40 Armink Add Master Functions Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
#define MB_PDU_FUNC_READ_BYTECNT_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
#define MB_PDU_REQ_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
#define MB_PDU_REQ_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_WRITE_SIZE ( 4 )
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
#define MB_PDU_REQ_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_REQ_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
#define MB_PDU_REQ_WRITE_MUL_SIZE_MIN ( 5 )
#define MB_PDU_REQ_WRITE_MUL_REGCNT_MAX ( 0x0078 )
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_WRITE_MUL_SIZE ( 4 )
#define MB_PDU_REQ_READWRITE_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_READWRITE_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 4 )
#define MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF ( MB_PDU_DATA_OFF + 6 )
#define MB_PDU_REQ_READWRITE_WRITE_BYTECNT_OFF ( MB_PDU_DATA_OFF + 8 )
#define MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF ( MB_PDU_DATA_OFF + 9 )
#define MB_PDU_REQ_READWRITE_SIZE_MIN ( 9 )
#define MB_PDU_FUNC_READWRITE_READ_BYTECNT_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READWRITE_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
#define MB_PDU_FUNC_READWRITE_SIZE_MIN ( 1 )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
/**
* This function will request write holding register.
*
* @param ucSndAddr salve address
* @param usRegAddr register start address
* @param usRegData register data to be written
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqWriteHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usRegData, LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_REGISTER;
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF] = usRegAddr >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF + 1] = usRegAddr;
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF] = usRegData >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF + 1] = usRegData ;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_SIZE_MIN + MB_PDU_FUNC_WRITE_SIZE ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
usRegAddress++;
/* Make callback to update the value. */
eRegStatus = eMBMasterRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF],
usRegAddress, 1, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
/**
* This function will request write multiple holding register.
*
* @param ucSndAddr salve address
* @param usRegAddr register start address
* @param usNRegs register total number
* @param pusDataBuffer data to be written
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqWriteMultipleHoldingRegister( UCHAR ucSndAddr,
USHORT usRegAddr, USHORT usNRegs, USHORT * pusDataBuffer, LONG lTimeOut )
{
UCHAR *ucMBFrame;
USHORT usRegIndex = 0;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_MULTIPLE_REGISTERS;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] = usRegAddr >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] = usRegAddr;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF] = usNRegs >> 8;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF + 1] = usNRegs ;
ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF] = usNRegs * 2;
ucMBFrame += MB_PDU_REQ_WRITE_MUL_VALUES_OFF;
while( usNRegs > usRegIndex)
{
*ucMBFrame++ = pusDataBuffer[usRegIndex] >> 8;
*ucMBFrame++ = pusDataBuffer[usRegIndex++] ;
}
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_MUL_SIZE_MIN + 2*usNRegs );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
UCHAR *ucMBFrame;
USHORT usRegAddress;
USHORT usRegCount;
UCHAR ucRegByteCount;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, the *usLen is not need check. */
if( ( *usLen == MB_PDU_SIZE_MIN + MB_PDU_FUNC_WRITE_MUL_SIZE ) || xMBMasterRequestIsBroadcast() )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF + 1] );
ucRegByteCount = ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF];
if( ucRegByteCount == 2 * usRegCount )
{
/* Make callback to update the register values. */
eRegStatus =
eMBMasterRegHoldingCB( &ucMBFrame[MB_PDU_REQ_WRITE_MUL_VALUES_OFF],
usRegAddress, usRegCount, MB_REG_WRITE );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
/**
* This function will request read holding register.
*
* @param ucSndAddr salve address
* @param usRegAddr register start address
* @param usNRegs register total number
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqReadHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_HOLDING_REGISTER;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usRegAddr >> 8;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usRegAddr;
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] = usNRegs >> 8;
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] = usNRegs;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
UCHAR *ucMBFrame;
USHORT usRegAddress;
USHORT usRegCount;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, and it's read mode. This request don't need execute. */
if ( xMBMasterRequestIsBroadcast() )
{
eStatus = MB_EX_NONE;
}
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usRegCount >= 1 ) && ( 2 * usRegCount == pucFrame[MB_PDU_FUNC_READ_BYTECNT_OFF] ) )
{
/* Make callback to fill the buffer. */
eRegStatus = eMBMasterRegHoldingCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usRegCount, MB_REG_READ );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
/**
* This function will request read and write holding register.
*
* @param ucSndAddr salve address
* @param usReadRegAddr read register start address
* @param usNReadRegs read register total number
* @param pusDataBuffer data to be written
* @param usWriteRegAddr write register start address
* @param usNWriteRegs write register total number
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqReadWriteMultipleHoldingRegister( UCHAR ucSndAddr,
USHORT usReadRegAddr, USHORT usNReadRegs, USHORT * pusDataBuffer,
USHORT usWriteRegAddr, USHORT usNWriteRegs, LONG lTimeOut )
{
UCHAR *ucMBFrame;
USHORT usRegIndex = 0;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READWRITE_MULTIPLE_REGISTERS;
ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF] = usReadRegAddr >> 8;
ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF + 1] = usReadRegAddr;
ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF] = usNReadRegs >> 8;
ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF + 1] = usNReadRegs ;
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF] = usWriteRegAddr >> 8;
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF + 1] = usWriteRegAddr;
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF] = usNWriteRegs >> 8;
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF + 1] = usNWriteRegs ;
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_BYTECNT_OFF] = usNWriteRegs * 2;
ucMBFrame += MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF;
while( usNWriteRegs > usRegIndex)
{
*ucMBFrame++ = pusDataBuffer[usRegIndex] >> 8;
*ucMBFrame++ = pusDataBuffer[usRegIndex++] ;
}
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READWRITE_SIZE_MIN + 2*usNWriteRegs );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegReadAddress;
USHORT usRegReadCount;
USHORT usRegWriteAddress;
USHORT usRegWriteCount;
UCHAR *ucMBFrame;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, and it's read mode. This request don't need execute. */
if ( xMBMasterRequestIsBroadcast() )
{
eStatus = MB_EX_NONE;
}
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READWRITE_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegReadAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF] << 8U );
usRegReadAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF + 1] );
usRegReadAddress++;
usRegReadCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF] << 8U );
usRegReadCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF + 1] );
usRegWriteAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF] << 8U );
usRegWriteAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF + 1] );
usRegWriteAddress++;
usRegWriteCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF] << 8U );
usRegWriteCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF + 1] );
if( ( 2 * usRegReadCount ) == pucFrame[MB_PDU_FUNC_READWRITE_READ_BYTECNT_OFF] )
{
/* Make callback to update the register values. */
eRegStatus = eMBMasterRegHoldingCB( &ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF],
usRegWriteAddress, usRegWriteCount, MB_REG_WRITE );
if( eRegStatus == MB_ENOERR )
{
/* Make the read callback. */
eRegStatus = eMBMasterRegHoldingCB(&pucFrame[MB_PDU_FUNC_READWRITE_READ_VALUES_OFF],
usRegReadAddress, usRegReadCount, MB_REG_READ);
}
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
return eStatus;
}
#endif
#endif

122
components/net/freemodbus/modbus/functions/mbfuncinput.c
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@ -1,122 +0,0 @@
/*
* 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: mbfuncinput.c,v 1.10 2007/09/12 10:15:56 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"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
#define MB_PDU_FUNC_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_FUNC_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
#define MB_PDU_FUNC_READ_RSP_BYTECNT_OFF ( MB_PDU_DATA_OFF )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_FUNC_READ_INPUT_ENABLED > 0
eMBException
eMBFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen )
{
USHORT usRegAddress;
USHORT usRegCount;
UCHAR *pucFrameCur;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
{
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usRegCount >= 1 )
&& ( usRegCount < MB_PDU_FUNC_READ_REGCNT_MAX ) )
{
/* Set the current PDU data pointer to the beginning. */
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
*usLen = MB_PDU_FUNC_OFF;
/* First byte contains the function code. */
*pucFrameCur++ = MB_FUNC_READ_INPUT_REGISTER;
*usLen += 1;
/* Second byte in the response contain the number of bytes. */
*pucFrameCur++ = ( UCHAR )( usRegCount * 2 );
*usLen += 1;
eRegStatus =
eMBRegInputCB( pucFrameCur, usRegAddress, usRegCount );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
else
{
*usLen += usRegCount * 2;
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid read input register request because the length
* is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif

148
components/net/freemodbus/modbus/functions/mbfuncinput_m.c
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@ -1,148 +0,0 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* 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: mbfuncinput_m.c,v 1.60 2013/10/12 14:23:40 Armink Add Master Functions Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbconfig.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_REQ_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
#define MB_PDU_REQ_READ_SIZE ( 4 )
#define MB_PDU_FUNC_READ_BYTECNT_OFF ( MB_PDU_DATA_OFF + 0 )
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
#define MB_PDU_FUNC_READ_RSP_BYTECNT_OFF ( MB_PDU_DATA_OFF )
/* ----------------------- Static functions ---------------------------------*/
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
/* ----------------------- Start implementation -----------------------------*/
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#if MB_FUNC_READ_INPUT_ENABLED > 0
/**
* This function will request read input register.
*
* @param ucSndAddr salve address
* @param usRegAddr register start address
* @param usNRegs register total number
* @param lTimeOut timeout (-1 will waiting forever)
*
* @return error code
*/
eMBMasterReqErrCode
eMBMasterReqReadInputRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut )
{
UCHAR *ucMBFrame;
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
else
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
vMBMasterSetDestAddress(ucSndAddr);
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_INPUT_REGISTER;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usRegAddr >> 8;
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usRegAddr;
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] = usNRegs >> 8;
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] = usNRegs;
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
eErrStatus = eMBMasterWaitRequestFinish( );
}
return eErrStatus;
}
eMBException
eMBMasterFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen )
{
UCHAR *ucMBFrame;
USHORT usRegAddress;
USHORT usRegCount;
eMBException eStatus = MB_EX_NONE;
eMBErrorCode eRegStatus;
/* If this request is broadcast, and it's read mode. This request don't need execute. */
if ( xMBMasterRequestIsBroadcast() )
{
eStatus = MB_EX_NONE;
}
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
{
vMBMasterGetPDUSndBuf(&ucMBFrame);
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
usRegAddress++;
usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] << 8 );
usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] );
/* Check if the number of registers to read is valid. If not
* return Modbus illegal data value exception.
*/
if( ( usRegCount >= 1 ) && ( 2 * usRegCount == pucFrame[MB_PDU_FUNC_READ_BYTECNT_OFF] ) )
{
/* Make callback to fill the buffer. */
eRegStatus = eMBMasterRegInputCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usRegCount );
/* If an error occured convert it into a Modbus exception. */
if( eRegStatus != MB_ENOERR )
{
eStatus = prveMBError2Exception( eRegStatus );
}
}
else
{
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
}
else
{
/* Can't be a valid request because the length is incorrect. */
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
}
return eStatus;
}
#endif
#endif

88
components/net/freemodbus/modbus/functions/mbfuncother.c
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@ -1,88 +0,0 @@
/*
* 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

141
components/net/freemodbus/modbus/functions/mbutils.c
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@ -1,141 +0,0 @@
/*
* 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: mbutils.c,v 1.6 2007/02/18 23:49:07 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbproto.h"
/* ----------------------- Defines ------------------------------------------*/
#define BITS_UCHAR 8U
/* ----------------------- Start implementation -----------------------------*/
void
xMBUtilSetBits( UCHAR * ucByteBuf, USHORT usBitOffset, UCHAR ucNBits,
UCHAR ucValue )
{
USHORT usWordBuf;
USHORT usMask;
USHORT usByteOffset;
USHORT usNPreBits;
USHORT usValue = ucValue;
RT_ASSERT( ucNBits <= 8 );
RT_ASSERT( ( size_t )BITS_UCHAR == sizeof( UCHAR ) * 8 );
/* Calculate byte offset for first byte containing the bit values starting
* at usBitOffset. */
usByteOffset = ( USHORT )( ( usBitOffset ) / BITS_UCHAR );
/* How many bits precede our bits to set. */
usNPreBits = ( USHORT )( usBitOffset - usByteOffset * BITS_UCHAR );
/* Move bit field into position over bits to set */
usValue <<= usNPreBits;
/* Prepare a mask for setting the new bits. */
usMask = ( USHORT )( ( 1 << ( USHORT ) ucNBits ) - 1 );
usMask <<= usBitOffset - usByteOffset * BITS_UCHAR;
/* copy bits into temporary storage. */
usWordBuf = ucByteBuf[usByteOffset];
usWordBuf |= ucByteBuf[usByteOffset + 1] << BITS_UCHAR;
/* Zero out bit field bits and then or value bits into them. */
usWordBuf = ( USHORT )( ( usWordBuf & ( ~usMask ) ) | usValue );
/* move bits back into storage */
ucByteBuf[usByteOffset] = ( UCHAR )( usWordBuf & 0xFF );
ucByteBuf[usByteOffset + 1] = ( UCHAR )( usWordBuf >> BITS_UCHAR );
}
UCHAR
xMBUtilGetBits( UCHAR * ucByteBuf, USHORT usBitOffset, UCHAR ucNBits )
{
USHORT usWordBuf;
USHORT usMask;
USHORT usByteOffset;
USHORT usNPreBits;
/* Calculate byte offset for first byte containing the bit values starting
* at usBitOffset. */
usByteOffset = ( USHORT )( ( usBitOffset ) / BITS_UCHAR );
/* How many bits precede our bits to set. */
usNPreBits = ( USHORT )( usBitOffset - usByteOffset * BITS_UCHAR );
/* Prepare a mask for setting the new bits. */
usMask = ( USHORT )( ( 1 << ( USHORT ) ucNBits ) - 1 );
/* copy bits into temporary storage. */
usWordBuf = ucByteBuf[usByteOffset];
usWordBuf |= ucByteBuf[usByteOffset + 1] << BITS_UCHAR;
/* throw away unneeded bits. */
usWordBuf >>= usNPreBits;
/* mask away bits above the requested bitfield. */
usWordBuf &= usMask;
return ( UCHAR ) usWordBuf;
}
eMBException
prveMBError2Exception( eMBErrorCode eErrorCode )
{
eMBException eStatus;
switch ( eErrorCode )
{
case MB_ENOERR:
eStatus = MB_EX_NONE;
break;
case MB_ENOREG:
eStatus = MB_EX_ILLEGAL_DATA_ADDRESS;
break;
case MB_ETIMEDOUT:
eStatus = MB_EX_SLAVE_BUSY;
break;
default:
eStatus = MB_EX_SLAVE_DEVICE_FAILURE;
break;
}
return eStatus;
}

417
components/net/freemodbus/modbus/include/mb.h
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@ -1,417 +0,0 @@
/*
* 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: mb.h,v 1.17 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_H
#define _MB_H
#include "port.h"
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
#include "mbport.h"
#include "mbproto.h"
/*! \defgroup modbus Modbus
* \code #include "mb.h" \endcode
*
* This module defines the interface for the application. It contains
* the basic functions and types required to use the Modbus protocol stack.
* A typical application will want to call eMBInit() first. If the device
* is ready to answer network requests it must then call eMBEnable() to activate
* the protocol stack. In the main loop the function eMBPoll() must be called
* periodically. The time interval between pooling depends on the configured
* Modbus timeout. If an RTOS is available a separate task should be created
* and the task should always call the function eMBPoll().
*
* \code
* // Initialize protocol stack in RTU mode for a slave with address 10 = 0x0A
* eMBInit( MB_RTU, 0x0A, 38400, MB_PAR_EVEN );
* // Enable the Modbus Protocol Stack.
* eMBEnable( );
* for( ;; )
* {
* // Call the main polling loop of the Modbus protocol stack.
* eMBPoll( );
* ...
* }
* \endcode
*/
/* ----------------------- Defines ------------------------------------------*/
/*! \ingroup modbus
* \brief Use the default Modbus TCP port (502)
*/
#define MB_TCP_PORT_USE_DEFAULT 0
/* ----------------------- Type definitions ---------------------------------*/
/*! \ingroup modbus
* \brief Modbus serial transmission modes (RTU/ASCII).
*
* Modbus serial supports two transmission modes. Either ASCII or RTU. RTU
* is faster but has more hardware requirements and requires a network with
* a low jitter. ASCII is slower and more reliable on slower links (E.g. modems)
*/
typedef enum
{
MB_RTU, /*!< RTU transmission mode. */
MB_ASCII, /*!< ASCII transmission mode. */
MB_TCP /*!< TCP mode. */
} eMBMode;
/*! \ingroup modbus
* \brief If register should be written or read.
*
* This value is passed to the callback functions which support either
* reading or writing register values. Writing means that the application
* registers should be updated and reading means that the modbus protocol
* stack needs to know the current register values.
*
* \see eMBRegHoldingCB( ), eMBRegCoilsCB( ), eMBRegDiscreteCB( ) and
* eMBRegInputCB( ).
*/
typedef enum
{
MB_REG_READ, /*!< Read register values and pass to protocol stack. */
MB_REG_WRITE /*!< Update register values. */
} eMBRegisterMode;
/*! \ingroup modbus
* \brief Errorcodes used by all function in the protocol stack.
*/
typedef enum
{
MB_ENOERR, /*!< no error. */
MB_ENOREG, /*!< illegal register address. */
MB_EINVAL, /*!< illegal argument. */
MB_EPORTERR, /*!< porting layer error. */
MB_ENORES, /*!< insufficient resources. */
MB_EIO, /*!< I/O error. */
MB_EILLSTATE, /*!< protocol stack in illegal state. */
MB_ETIMEDOUT /*!< timeout error occurred. */
} eMBErrorCode;
/* ----------------------- Function prototypes ------------------------------*/
/*! \ingroup modbus
* \brief Initialize the Modbus protocol stack.
*
* This functions initializes the ASCII or RTU module and calls the
* init functions of the porting layer to prepare the hardware. Please
* note that the receiver is still disabled and no Modbus frames are
* processed until eMBEnable( ) has been called.
*
* \param eMode If ASCII or RTU mode should be used.
* \param ucSlaveAddress The slave address. Only frames sent to this
* address or to the broadcast address are processed.
* \param ucPort The port to use. E.g. 1 for COM1 on windows. This value
* is platform dependent and some ports simply choose to ignore it.
* \param ulBaudRate The baudrate. E.g. 19200. Supported baudrates depend
* on the porting layer.
* \param eParity Parity used for serial transmission.
*
* \return If no error occurs the function returns eMBErrorCode::MB_ENOERR.
* The protocol is then in the disabled state and ready for activation
* by calling eMBEnable( ). Otherwise one of the following error codes
* is returned:
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
* slave addresses are in the range 1 - 247.
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBInit( eMBMode eMode, UCHAR ucSlaveAddress,
UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity );
/*! \ingroup modbus
* \brief Initialize the Modbus protocol stack for Modbus TCP.
*
* This function initializes the Modbus TCP Module. Please note that
* frame processing is still disabled until eMBEnable( ) is called.
*
* \param usTCPPort The TCP port to listen on.
* \return If the protocol stack has been initialized correctly the function
* returns eMBErrorCode::MB_ENOERR. Otherwise one of the following error
* codes is returned:
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
* slave addresses are in the range 1 - 247.
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBTCPInit( USHORT usTCPPort );
/*! \ingroup modbus
* \brief Release resources used by the protocol stack.
*
* This function disables the Modbus protocol stack and release all
* hardware resources. It must only be called when the protocol stack
* is disabled.
*
* \note Note all ports implement this function. A port which wants to
* get an callback must define the macro MB_PORT_HAS_CLOSE to 1.
*
* \return If the resources where released it return eMBErrorCode::MB_ENOERR.
* If the protocol stack is not in the disabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBClose( void );
/*! \ingroup modbus
* \brief Enable the Modbus protocol stack.
*
* This function enables processing of Modbus frames. Enabling the protocol
* stack is only possible if it is in the disabled state.
*
* \return If the protocol stack is now in the state enabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the disabled state it
* return eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBEnable( void );
/*! \ingroup modbus
* \brief Disable the Modbus protocol stack.
*
* This function disables processing of Modbus frames.
*
* \return If the protocol stack has been disabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the enabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBDisable( void );
/*! \ingroup modbus
* \brief The main pooling loop of the Modbus protocol stack.
*
* This function must be called periodically. The timer interval required
* is given by the application dependent Modbus slave timeout. Internally the
* function calls xMBPortEventGet() and waits for an event from the receiver or
* transmitter state machines.
*
* \return If the protocol stack is not in the enabled state the function
* returns eMBErrorCode::MB_EILLSTATE. Otherwise it returns
* eMBErrorCode::MB_ENOERR.
*/
eMBErrorCode eMBPoll( void );
/*! \ingroup modbus
* \brief Configure the slave id of the device.
*
* This function should be called when the Modbus function <em>Report Slave ID</em>
* is enabled ( By defining MB_FUNC_OTHER_REP_SLAVEID_ENABLED in mbconfig.h ).
*
* \param ucSlaveID Values is returned in the <em>Slave ID</em> byte of the
* <em>Report Slave ID</em> response.
* \param xIsRunning If TRUE the <em>Run Indicator Status</em> byte is set to 0xFF.
* otherwise the <em>Run Indicator Status</em> is 0x00.
* \param pucAdditional Values which should be returned in the <em>Additional</em>
* bytes of the <em> Report Slave ID</em> response.
* \param usAdditionalLen Length of the buffer <code>pucAdditonal</code>.
*
* \return If the static buffer defined by MB_FUNC_OTHER_REP_SLAVEID_BUF in
* mbconfig.h is to small it returns eMBErrorCode::MB_ENORES. Otherwise
* it returns eMBErrorCode::MB_ENOERR.
*/
eMBErrorCode eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,
UCHAR const *pucAdditional,
USHORT usAdditionalLen );
/*! \ingroup modbus
* \brief Registers a callback handler for a given function code.
*
* This function registers a new callback handler for a given function code.
* The callback handler supplied is responsible for interpreting the Modbus PDU and
* the creation of an appropriate response. In case of an error it should return
* one of the possible Modbus exceptions which results in a Modbus exception frame
* sent by the protocol stack.
*
* \param ucFunctionCode The Modbus function code for which this handler should
* be registers. Valid function codes are in the range 1 to 127.
* \param pxHandler The function handler which should be called in case
* such a frame is received. If \c NULL a previously registered function handler
* for this function code is removed.
*
* \return eMBErrorCode::MB_ENOERR if the handler has been installed. If no
* more resources are available it returns eMBErrorCode::MB_ENORES. In this
* case the values in mbconfig.h should be adjusted. If the argument was not
* valid it returns eMBErrorCode::MB_EINVAL.
*/
eMBErrorCode eMBRegisterCB( UCHAR ucFunctionCode,
pxMBFunctionHandler pxHandler );
/* ----------------------- Callback -----------------------------------------*/
/*! \defgroup modbus_registers Modbus Registers
* \code #include "mb.h" \endcode
* The protocol stack does not internally allocate any memory for the
* registers. This makes the protocol stack very small and also usable on
* low end targets. In addition the values don't have to be in the memory
* and could for example be stored in a flash.<br>
* Whenever the protocol stack requires a value it calls one of the callback
* function with the register address and the number of registers to read
* as an argument. The application should then read the actual register values
* (for example the ADC voltage) and should store the result in the supplied
* buffer.<br>
* If the protocol stack wants to update a register value because a write
* register function was received a buffer with the new register values is
* passed to the callback function. The function should then use these values
* to update the application register values.
*/
/*! \ingroup modbus_registers
* \brief Callback function used if the value of a <em>Input Register</em>
* is required by the protocol stack. The starting register address is given
* by \c usAddress and the last register is given by <tt>usAddress +
* usNRegs - 1</tt>.
*
* \param pucRegBuffer A buffer where the callback function should write
* the current value of the modbus registers to.
* \param usAddress The starting address of the register. Input registers
* are in the range 1 - 65535.
* \param usNRegs Number of registers the callback function must supply.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application can not supply values
* for registers within this range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> exception frame is sent as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Holding Register</em> value is
* read or written by the protocol stack. The starting register address
* is given by \c usAddress and the last register is given by
* <tt>usAddress + usNRegs - 1</tt>.
*
* \param pucRegBuffer If the application registers values should be updated the
* buffer points to the new registers values. If the protocol stack needs
* to now the current values the callback function should write them into
* this buffer.
* \param usAddress The starting address of the register.
* \param usNRegs Number of registers to read or write.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application register
* values should be updated from the values in the buffer. For example
* this would be the case when the Modbus master has issued an
* <b>WRITE SINGLE REGISTER</b> command.
* If the value eMBRegisterMode::MB_REG_READ the application should copy
* the current values into the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application can not supply values
* for registers within this range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> exception frame is sent as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Coil Register</em> value is
* read or written by the protocol stack. If you are going to use
* this function you might use the functions xMBUtilSetBits( ) and
* xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The bits are packed in bytes where the first coil
* starting at address \c usAddress is stored in the LSB of the
* first byte in the buffer <code>pucRegBuffer</code>.
* If the buffer should be written by the callback function unused
* coil values (I.e. if not a multiple of eight coils is used) should be set
* to zero.
* \param usAddress The first coil number.
* \param usNCoils Number of coil values requested.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application values should
* be updated from the values supplied in the buffer \c pucRegBuffer.
* If eMBRegisterMode::MB_REG_READ the application should store the current
* values in the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNCoils, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Input Discrete Register</em> value is
* read by the protocol stack.
*
* If you are going to use his function you might use the functions
* xMBUtilSetBits( ) and xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The buffer should be updated with the current
* coil values. The first discrete input starting at \c usAddress must be
* stored at the LSB of the first byte in the buffer. If the requested number
* is not a multiple of eight the remaining bits should be set to zero.
* \param usAddress The starting address of the first discrete input.
* \param usNDiscrete Number of discrete input values.
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If no such discrete inputs exists.
* In this case a <b>ILLEGAL DATA ADDRESS</b> exception frame is sent
* as a response.
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
* currently not available and the application dependent response
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
* exception is sent as a response.
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
*/
eMBErrorCode eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNDiscrete );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* 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: mb_m.h,v 1.60 2013/09/03 10:20:05 Armink Add Master Functions $
*/
#ifndef _MB_M_H
#define _MB_M_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/*! \defgroup modbus Modbus
* \code #include "mb_m.h" \endcode
*
* This module defines the interface for the application. It contains
* the basic functions and types required to use the Modbus Master protocol stack.
* A typical application will want to call eMBMasterInit() first. If the device
* is ready to answer network requests it must then call eMBEnable() to activate
* the protocol stack. In the main loop the function eMBMasterPoll() must be called
* periodically. The time interval between pooling depends on the configured
* Modbus timeout. If an RTOS is available a separate task should be created
* and the task should always call the function eMBMasterPoll().
*
* \code
* // Initialize protocol stack in RTU mode for a Master
* eMBMasterInit( MB_RTU, 38400, MB_PAR_EVEN );
* // Enable the Modbus Protocol Stack.
* eMBMasterEnable( );
* for( ;; )
* {
* // Call the main polling loop of the Modbus Master protocol stack.
* eMBMasterPoll( );
* ...
* }
* \endcode
*/
/* ----------------------- Defines ------------------------------------------*/
/*! \ingroup modbus
* \brief Use the default Modbus Master TCP port (502)
*/
#define MB_MASTER_TCP_PORT_USE_DEFAULT 0
/* ----------------------- Type definitions ---------------------------------*/
/*! \ingroup modbus
* \brief Errorcodes used by all function in the Master request.
*/
typedef enum
{
MB_MRE_NO_ERR, /*!< no error. */
MB_MRE_NO_REG, /*!< illegal register address. */
MB_MRE_ILL_ARG, /*!< illegal argument. */
MB_MRE_REV_DATA, /*!< receive data error. */
MB_MRE_TIMEDOUT, /*!< timeout error occurred. */
MB_MRE_MASTER_BUSY, /*!< master is busy now. */
MB_MRE_EXE_FUN /*!< execute function error. */
} eMBMasterReqErrCode;
/*! \ingroup modbus
* \brief TimerMode is Master 3 kind of Timer modes.
*/
typedef enum
{
MB_TMODE_T35, /*!< Master receive frame T3.5 timeout. */
MB_TMODE_RESPOND_TIMEOUT, /*!< Master wait respond for slave. */
MB_TMODE_CONVERT_DELAY /*!< Master sent broadcast ,then delay sometime.*/
}eMBMasterTimerMode;
/* ----------------------- Function prototypes ------------------------------*/
/*! \ingroup modbus
* \brief Initialize the Modbus Master protocol stack.
*
* This functions initializes the ASCII or RTU module and calls the
* init functions of the porting layer to prepare the hardware. Please
* note that the receiver is still disabled and no Modbus frames are
* processed until eMBMasterEnable( ) has been called.
*
* \param eMode If ASCII or RTU mode should be used.
* \param ucPort The port to use. E.g. 1 for COM1 on windows. This value
* is platform dependent and some ports simply choose to ignore it.
* \param ulBaudRate The baudrate. E.g. 19200. Supported baudrates depend
* on the porting layer.
* \param eParity Parity used for serial transmission.
*
* \return If no error occurs the function returns eMBErrorCode::MB_ENOERR.
* The protocol is then in the disabled state and ready for activation
* by calling eMBMasterEnable( ). Otherwise one of the following error codes
* is returned:
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBMasterInit( eMBMode eMode, UCHAR ucPort,
ULONG ulBaudRate, eMBParity eParity );
/*! \ingroup modbus
* \brief Initialize the Modbus Master protocol stack for Modbus TCP.
*
* This function initializes the Modbus TCP Module. Please note that
* frame processing is still disabled until eMBEnable( ) is called.
*
* \param usTCPPort The TCP port to listen on.
* \return If the protocol stack has been initialized correctly the function
* returns eMBErrorCode::MB_ENOERR. Otherwise one of the following error
* codes is returned:
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
* slave addresses are in the range 1 - 247.
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
*/
eMBErrorCode eMBMasterTCPInit( USHORT usTCPPort );
/*! \ingroup modbus
* \brief Release resources used by the protocol stack.
*
* This function disables the Modbus Master protocol stack and release all
* hardware resources. It must only be called when the protocol stack
* is disabled.
*
* \note Note all ports implement this function. A port which wants to
* get an callback must define the macro MB_PORT_HAS_CLOSE to 1.
*
* \return If the resources where released it return eMBErrorCode::MB_ENOERR.
* If the protocol stack is not in the disabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBMasterClose( void );
/*! \ingroup modbus
* \brief Enable the Modbus Master protocol stack.
*
* This function enables processing of Modbus Master frames. Enabling the protocol
* stack is only possible if it is in the disabled state.
*
* \return If the protocol stack is now in the state enabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the disabled state it
* return eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBMasterEnable( void );
/*! \ingroup modbus
* \brief Disable the Modbus Master protocol stack.
*
* This function disables processing of Modbus frames.
*
* \return If the protocol stack has been disabled it returns
* eMBErrorCode::MB_ENOERR. If it was not in the enabled state it returns
* eMBErrorCode::MB_EILLSTATE.
*/
eMBErrorCode eMBMasterDisable( void );
/*! \ingroup modbus
* \brief The main pooling loop of the Modbus Master protocol stack.
*
* This function must be called periodically. The timer interval required
* is given by the application dependent Modbus slave timeout. Internally the
* function calls xMBMasterPortEventGet() and waits for an event from the receiver or
* transmitter state machines.
*
* \return If the protocol stack is not in the enabled state the function
* returns eMBErrorCode::MB_EILLSTATE. Otherwise it returns
* eMBErrorCode::MB_ENOERR.
*/
eMBErrorCode eMBMasterPoll( void );
/*! \ingroup modbus
* \brief Registers a callback handler for a given function code.
*
* This function registers a new callback handler for a given function code.
* The callback handler supplied is responsible for interpreting the Modbus PDU and
* the creation of an appropriate response. In case of an error it should return
* one of the possible Modbus exceptions which results in a Modbus exception frame
* sent by the protocol stack.
*
* \param ucFunctionCode The Modbus function code for which this handler should
* be registers. Valid function codes are in the range 1 to 127.
* \param pxHandler The function handler which should be called in case
* such a frame is received. If \c NULL a previously registered function handler
* for this function code is removed.
*
* \return eMBErrorCode::MB_ENOERR if the handler has been installed. If no
* more resources are available it returns eMBErrorCode::MB_ENORES. In this
* case the values in mbconfig.h should be adjusted. If the argument was not
* valid it returns eMBErrorCode::MB_EINVAL.
*/
eMBErrorCode eMBMasterRegisterCB( UCHAR ucFunctionCode,
pxMBFunctionHandler pxHandler );
/* ----------------------- Callback -----------------------------------------*/
/*! \defgroup modbus_master registers Modbus Registers
* \code #include "mb_m.h" \endcode
* The protocol stack does not internally allocate any memory for the
* registers. This makes the protocol stack very small and also usable on
* low end targets. In addition the values don't have to be in the memory
* and could for example be stored in a flash.<br>
* Whenever the protocol stack requires a value it calls one of the callback
* function with the register address and the number of registers to read
* as an argument. The application should then read the actual register values
* (for example the ADC voltage) and should store the result in the supplied
* buffer.<br>
* If the protocol stack wants to update a register value because a write
* register function was received a buffer with the new register values is
* passed to the callback function. The function should then use these values
* to update the application register values.
*/
/*! \ingroup modbus_registers
* \brief Callback function used if the value of a <em>Input Register</em>
* is required by the protocol stack. The starting register address is given
* by \c usAddress and the last register is given by <tt>usAddress +
* usNRegs - 1</tt>.
*
* \param pucRegBuffer A buffer where the callback function should write
* the current value of the modbus registers to.
* \param usAddress The starting address of the register. Input registers
* are in the range 1 - 65535.
* \param usNRegs Number of registers the callback function must supply.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Holding Register</em> value is
* read or written by the protocol stack. The starting register address
* is given by \c usAddress and the last register is given by
* <tt>usAddress + usNRegs - 1</tt>.
*
* \param pucRegBuffer If the application registers values should be updated the
* buffer points to the new registers values. If the protocol stack needs
* to now the current values the callback function should write them into
* this buffer.
* \param usAddress The starting address of the register.
* \param usNRegs Number of registers to read or write.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application register
* values should be updated from the values in the buffer. For example
* this would be the case when the Modbus master has issued an
* <b>WRITE SINGLE REGISTER</b> command.
* If the value eMBRegisterMode::MB_REG_READ the application should copy
* the current values into the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Coil Register</em> value is
* read or written by the protocol stack. If you are going to use
* this function you might use the functions xMBUtilSetBits( ) and
* xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The bits are packed in bytes where the first coil
* starting at address \c usAddress is stored in the LSB of the
* first byte in the buffer <code>pucRegBuffer</code>.
* If the buffer should be written by the callback function unused
* coil values (I.e. if not a multiple of eight coils is used) should be set
* to zero.
* \param usAddress The first coil number.
* \param usNCoils Number of coil values requested.
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application values should
* be updated from the values supplied in the buffer \c pucRegBuffer.
* If eMBRegisterMode::MB_REG_READ the application should store the current
* values in the buffer \c pucRegBuffer.
*
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNCoils, eMBRegisterMode eMode );
/*! \ingroup modbus_registers
* \brief Callback function used if a <em>Input Discrete Register</em> value is
* read by the protocol stack.
*
* If you are going to use his function you might use the functions
* xMBUtilSetBits( ) and xMBUtilGetBits( ) for working with bitfields.
*
* \param pucRegBuffer The buffer should be updated with the current
* coil values. The first discrete input starting at \c usAddress must be
* stored at the LSB of the first byte in the buffer. If the requested number
* is not a multiple of eight the remaining bits should be set to zero.
* \param usAddress The starting address of the first discrete input.
* \param usNDiscrete Number of discrete input values.
* \return The function must return one of the following error codes:
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
* Modbus response is sent.
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
* within the requested address range. In this case a
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
*/
eMBErrorCode eMBMasterRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNDiscrete );
/*! \ingroup modbus
*\brief These Modbus functions are called for user when Modbus run in Master Mode.
*/
eMBMasterReqErrCode
eMBMasterReqReadInputRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usRegData, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteMultipleHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr,
USHORT usNRegs, USHORT * pusDataBuffer, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadWriteMultipleHoldingRegister( UCHAR ucSndAddr,
USHORT usReadRegAddr, USHORT usNReadRegs, USHORT * pusDataBuffer,
USHORT usWriteRegAddr, USHORT usNWriteRegs, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadCoils( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usNCoils, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteCoil( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usCoilData, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqWriteMultipleCoils( UCHAR ucSndAddr,
USHORT usCoilAddr, USHORT usNCoils, UCHAR * pucDataBuffer, LONG lTimeOut );
eMBMasterReqErrCode
eMBMasterReqReadDiscreteInputs( UCHAR ucSndAddr, USHORT usDiscreteAddr, USHORT usNDiscreteIn, LONG lTimeOut );
eMBException
eMBMasterFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadCoils( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen );
eMBException
eMBMasterFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
/*£¡ \ingroup modbus
*\brief These functions are interface for Modbus Master
*/
void vMBMasterGetPDUSndBuf( UCHAR ** pucFrame );
UCHAR ucMBMasterGetDestAddress( void );
void vMBMasterSetDestAddress( UCHAR Address );
BOOL xMBMasterGetCBRunInMasterMode( void );
void vMBMasterSetCBRunInMasterMode( BOOL IsMasterMode );
USHORT usMBMasterGetPDUSndLength( void );
void vMBMasterSetPDUSndLength( USHORT SendPDULength );
void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode );
BOOL xMBMasterRequestIsBroadcast( void );
eMBMasterErrorEventType eMBMasterGetErrorType( void );
void vMBMasterSetErrorType( eMBMasterErrorEventType errorType );
eMBMasterReqErrCode eMBMasterWaitRequestFinish( void );
/* ----------------------- Callback -----------------------------------------*/
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* 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: mbconfig.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
* $Id: mbconfig.h,v 1.60 2013/08/13 21:19:55 Armink Add Master Functions $
*/
#ifndef _MB_CONFIG_H
#define _MB_CONFIG_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
/*! \defgroup modbus_cfg Modbus Configuration
*
* Most modules in the protocol stack are completly optional and can be
* excluded. This is specially important if target resources are very small
* and program memory space should be saved.<br>
*
* All of these settings are available in the file <code>mbconfig.h</code>
*/
/*! \addtogroup modbus_cfg
* @{
*/
/*! \brief If Modbus Master ASCII support is enabled. */
#define MB_MASTER_ASCII_ENABLED ( 0 )
/*! \brief If Modbus Master RTU support is enabled. */
#define MB_MASTER_RTU_ENABLED ( 1 )
/*! \brief If Modbus Master TCP support is enabled. */
#define MB_MASTER_TCP_ENABLED ( 0 )
/*! \brief If Modbus Slave ASCII support is enabled. */
#define MB_SLAVE_ASCII_ENABLED ( 0 )
/*! \brief If Modbus Slave RTU support is enabled. */
#define MB_SLAVE_RTU_ENABLED ( 1 )
/*! \brief If Modbus Slave TCP support is enabled. */
#define MB_SLAVE_TCP_ENABLED ( 0 )
/*! \brief The character timeout value for Modbus ASCII.
*
* The character timeout value is not fixed for Modbus ASCII and is therefore
* a configuration option. It should be set to the maximum expected delay
* time of the network.
*/
#define MB_ASCII_TIMEOUT_SEC ( 1 )
/*! \brief Maximum number of Modbus functions codes the protocol stack
* should support.
*
* The maximum number of supported Modbus functions must be greater than
* the sum of all enabled functions in this file and custom function
* handlers. If set to small adding more functions will fail.
*/
#define MB_FUNC_HANDLERS_MAX ( 16 )
/*! \brief Number of bytes which should be allocated for the <em>Report Slave ID
* </em>command.
*
* This number limits the maximum size of the additional segment in the
* report slave id function. See eMBSetSlaveID( ) for more information on
* how to set this value. It is only used if MB_FUNC_OTHER_REP_SLAVEID_ENABLED
* is set to <code>1</code>.
*/
#define MB_FUNC_OTHER_REP_SLAVEID_BUF ( 32 )
/*! \brief If the <em>Report Slave ID</em> function should be enabled. */
#define MB_FUNC_OTHER_REP_SLAVEID_ENABLED ( 1 )
/*! \brief If the <em>Read Input Registers</em> function should be enabled. */
#define MB_FUNC_READ_INPUT_ENABLED ( 1 )
/*! \brief If the <em>Read Holding Registers</em> function should be enabled. */
#define MB_FUNC_READ_HOLDING_ENABLED ( 1 )
/*! \brief If the <em>Write Single Register</em> function should be enabled. */
#define MB_FUNC_WRITE_HOLDING_ENABLED ( 1 )
/*! \brief If the <em>Write Multiple registers</em> function should be enabled. */
#define MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED ( 1 )
/*! \brief If the <em>Read Coils</em> function should be enabled. */
#define MB_FUNC_READ_COILS_ENABLED ( 1 )
/*! \brief If the <em>Write Coils</em> function should be enabled. */
#define MB_FUNC_WRITE_COIL_ENABLED ( 1 )
/*! \brief If the <em>Write Multiple Coils</em> function should be enabled. */
#define MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED ( 1 )
/*! \brief If the <em>Read Discrete Inputs</em> function should be enabled. */
#define MB_FUNC_READ_DISCRETE_INPUTS_ENABLED ( 1 )
/*! \brief If the <em>Read/Write Multiple Registers</em> function should be enabled. */
#define MB_FUNC_READWRITE_HOLDING_ENABLED ( 1 )
/*! @} */
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
/*! \brief If master send a broadcast frame,the master will wait time of convert to delay,
* then master can send other frame */
#define MB_MASTER_DELAY_MS_CONVERT (200 )
/*! \brief If master send a frame which is not broadcast,the master will wait sometime for slave.
* And if slave is not respond in this time,the master will process this timeout error.
* Then master can send other frame */
#define MB_MASTER_TIMEOUT_MS_RESPOND (100 )
/*! \brief The total slaves in Modbus Master system. Default 16.
* \note : The slave ID must be continuous from 1.*/
#define MB_MASTER_TOTAL_SLAVE_NUM ( 16 )
#endif
#endif

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/*
* 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: mbframe.h,v 1.9 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_FRAME_H
#define _MB_FRAME_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/*!
* Constants which defines the format of a modbus frame. The example is
* shown for a Modbus RTU/ASCII frame. Note that the Modbus PDU is not
* dependent on the underlying transport.
*
* <code>
* <------------------------ MODBUS SERIAL LINE PDU (1) ------------------->
* <----------- MODBUS PDU (1') ---------------->
* +-----------+---------------+----------------------------+-------------+
* | Address | Function Code | Data | CRC/LRC |
* +-----------+---------------+----------------------------+-------------+
* | | | |
* (2) (3/2') (3') (4)
*
* (1) ... MB_SER_PDU_SIZE_MAX = 256
* (2) ... MB_SER_PDU_ADDR_OFF = 0
* (3) ... MB_SER_PDU_PDU_OFF = 1
* (4) ... MB_SER_PDU_SIZE_CRC = 2
*
* (1') ... MB_PDU_SIZE_MAX = 253
* (2') ... MB_PDU_FUNC_OFF = 0
* (3') ... MB_PDU_DATA_OFF = 1
* </code>
*/
/* ----------------------- Defines ------------------------------------------*/
#define MB_PDU_SIZE_MAX 253 /*!< Maximum size of a PDU. */
#define MB_PDU_SIZE_MIN 1 /*!< Function Code */
#define MB_PDU_FUNC_OFF 0 /*!< Offset of function code in PDU. */
#define MB_PDU_DATA_OFF 1 /*!< Offset for response data in PDU. */
/* ----------------------- Prototypes 0-------------------------------------*/
typedef void ( *pvMBFrameStart ) ( void );
typedef void ( *pvMBFrameStop ) ( void );
typedef eMBErrorCode( *peMBFrameReceive ) ( UCHAR * pucRcvAddress,
UCHAR ** pucFrame,
USHORT * pusLength );
typedef eMBErrorCode( *peMBFrameSend ) ( UCHAR slaveAddress,
const UCHAR * pucFrame,
USHORT usLength );
typedef void( *pvMBFrameClose ) ( void );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* 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: mbfunc.h,v 1.12 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_FUNC_H
#define _MB_FUNC_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
#if MB_FUNC_OTHER_REP_SLAVEID_BUF > 0
eMBException eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_INPUT_ENABLED > 0
eMBException eMBFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
eMBException eMBFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
eMBException eMBFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
eMBException eMBFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_COILS_ENABLED > 0
eMBException eMBFuncReadCoils( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
eMBException eMBFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
eMBException eMBFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
eMBException eMBFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen );
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
eMBException eMBFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
#endif
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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/*
* 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: mbport.h,v 1.17 2006/12/07 22:10:34 wolti Exp $
* mbport.h,v 1.60 2013/08/17 11:42:56 Armink Add Master Functions $
*/
#ifndef _MB_PORT_H
#define _MB_PORT_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
EV_READY = 1<<0, /*!< Startup finished. */
EV_FRAME_RECEIVED = 1<<1, /*!< Frame received. */
EV_EXECUTE = 1<<2, /*!< Execute function. */
EV_FRAME_SENT = 1<<3 /*!< Frame sent. */
} eMBEventType;
typedef enum
{
EV_MASTER_READY = 1<<0, /*!< Startup finished. */
EV_MASTER_FRAME_RECEIVED = 1<<1, /*!< Frame received. */
EV_MASTER_EXECUTE = 1<<2, /*!< Execute function. */
EV_MASTER_FRAME_SENT = 1<<3, /*!< Frame sent. */
EV_MASTER_ERROR_PROCESS = 1<<4, /*!< Frame error process. */
EV_MASTER_PROCESS_SUCESS = 1<<5, /*!< Request process success. */
EV_MASTER_ERROR_RESPOND_TIMEOUT = 1<<6, /*!< Request respond timeout. */
EV_MASTER_ERROR_RECEIVE_DATA = 1<<7, /*!< Request receive data error. */
EV_MASTER_ERROR_EXECUTE_FUNCTION = 1<<8, /*!< Request execute function error. */
} eMBMasterEventType;
typedef enum
{
EV_ERROR_RESPOND_TIMEOUT, /*!< Slave respond timeout. */
EV_ERROR_RECEIVE_DATA, /*!< Receive frame data erroe. */
EV_ERROR_EXECUTE_FUNCTION, /*!< Execute function error. */
} eMBMasterErrorEventType;
/*! \ingroup modbus
* \brief Parity used for characters in serial mode.
*
* The parity which should be applied to the characters sent over the serial
* link. Please note that this values are actually passed to the porting
* layer and therefore not all parity modes might be available.
*/
typedef enum
{
MB_PAR_NONE, /*!< No parity. */
MB_PAR_ODD, /*!< Odd parity. */
MB_PAR_EVEN /*!< Even parity. */
} eMBParity;
/* ----------------------- Supporting functions -----------------------------*/
BOOL xMBPortEventInit( void );
BOOL xMBPortEventPost( eMBEventType eEvent );
BOOL xMBPortEventGet( /*@out@ */ eMBEventType * eEvent );
BOOL xMBMasterPortEventInit( void );
BOOL xMBMasterPortEventPost( eMBMasterEventType eEvent );
BOOL xMBMasterPortEventGet( /*@out@ */ eMBMasterEventType * eEvent );
void vMBMasterOsResInit( void );
BOOL xMBMasterRunResTake( int32_t time );
void vMBMasterRunResRelease( void );
/* ----------------------- Serial port functions ----------------------------*/
BOOL xMBPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
UCHAR ucDataBits, eMBParity eParity );
void vMBPortClose( void );
void xMBPortSerialClose( void );
void vMBPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
INLINE BOOL xMBPortSerialGetByte( CHAR * pucByte );
INLINE BOOL xMBPortSerialPutByte( CHAR ucByte );
BOOL xMBMasterPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
UCHAR ucDataBits, eMBParity eParity );
void vMBMasterPortClose( void );
void xMBMasterPortSerialClose( void );
void vMBMasterPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
INLINE BOOL xMBMasterPortSerialGetByte( CHAR * pucByte );
INLINE BOOL xMBMasterPortSerialPutByte( CHAR ucByte );
/* ----------------------- Timers functions ---------------------------------*/
BOOL xMBPortTimersInit( USHORT usTimeOut50us );
void xMBPortTimersClose( void );
INLINE void vMBPortTimersEnable( void );
INLINE void vMBPortTimersDisable( void );
BOOL xMBMasterPortTimersInit( USHORT usTimeOut50us );
void xMBMasterPortTimersClose( void );
INLINE void vMBMasterPortTimersT35Enable( void );
INLINE void vMBMasterPortTimersConvertDelayEnable( void );
INLINE void vMBMasterPortTimersRespondTimeoutEnable( void );
INLINE void vMBMasterPortTimersDisable( void );
/* ----------------- Callback for the master error process ------------------*/
void vMBMasterErrorCBRespondTimeout( UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength );
void vMBMasterErrorCBReceiveData( UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength );
void vMBMasterErrorCBExecuteFunction( UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength );
void vMBMasterCBRequestScuuess( void );
/* ----------------------- Callback for the protocol stack ------------------*/
/*!
* \brief Callback function for the porting layer when a new byte is
* available.
*
* Depending upon the mode this callback function is used by the RTU or
* ASCII transmission layers. In any case a call to xMBPortSerialGetByte()
* must immediately return a new character.
*
* \return <code>TRUE</code> if a event was posted to the queue because
* a new byte was received. The port implementation should wake up the
* tasks which are currently blocked on the eventqueue.
*/
extern BOOL( *pxMBFrameCBByteReceived ) ( void );
extern BOOL( *pxMBFrameCBTransmitterEmpty ) ( void );
extern BOOL( *pxMBPortCBTimerExpired ) ( void );
extern BOOL( *pxMBMasterFrameCBByteReceived ) ( void );
extern BOOL( *pxMBMasterFrameCBTransmitterEmpty ) ( void );
extern BOOL( *pxMBMasterPortCBTimerExpired ) ( void );
/* ----------------------- TCP port functions -------------------------------*/
BOOL xMBTCPPortInit( USHORT usTCPPort );
void vMBTCPPortClose( void );
void vMBTCPPortDisable( void );
BOOL xMBTCPPortGetRequest( UCHAR **ppucMBTCPFrame, USHORT * usTCPLength );
BOOL xMBTCPPortSendResponse( const UCHAR *pucMBTCPFrame, USHORT usTCPLength );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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components/net/freemodbus/modbus/include/mbproto.h
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/*
* 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: mbproto.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_PROTO_H
#define _MB_PROTO_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
#define MB_ADDRESS_BROADCAST ( 0 ) /*! Modbus broadcast address. */
#define MB_ADDRESS_MIN ( 1 ) /*! Smallest possible slave address. */
#define MB_ADDRESS_MAX ( 247 ) /*! Biggest possible slave address. */
#define MB_FUNC_NONE ( 0 )
#define MB_FUNC_READ_COILS ( 1 )
#define MB_FUNC_READ_DISCRETE_INPUTS ( 2 )
#define MB_FUNC_WRITE_SINGLE_COIL ( 5 )
#define MB_FUNC_WRITE_MULTIPLE_COILS ( 15 )
#define MB_FUNC_READ_HOLDING_REGISTER ( 3 )
#define MB_FUNC_READ_INPUT_REGISTER ( 4 )
#define MB_FUNC_WRITE_REGISTER ( 6 )
#define MB_FUNC_WRITE_MULTIPLE_REGISTERS ( 16 )
#define MB_FUNC_READWRITE_MULTIPLE_REGISTERS ( 23 )
#define MB_FUNC_DIAG_READ_EXCEPTION ( 7 )
#define MB_FUNC_DIAG_DIAGNOSTIC ( 8 )
#define MB_FUNC_DIAG_GET_COM_EVENT_CNT ( 11 )
#define MB_FUNC_DIAG_GET_COM_EVENT_LOG ( 12 )
#define MB_FUNC_OTHER_REPORT_SLAVEID ( 17 )
#define MB_FUNC_ERROR ( 128 )
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
MB_EX_NONE = 0x00,
MB_EX_ILLEGAL_FUNCTION = 0x01,
MB_EX_ILLEGAL_DATA_ADDRESS = 0x02,
MB_EX_ILLEGAL_DATA_VALUE = 0x03,
MB_EX_SLAVE_DEVICE_FAILURE = 0x04,
MB_EX_ACKNOWLEDGE = 0x05,
MB_EX_SLAVE_BUSY = 0x06,
MB_EX_MEMORY_PARITY_ERROR = 0x08,
MB_EX_GATEWAY_PATH_FAILED = 0x0A,
MB_EX_GATEWAY_TGT_FAILED = 0x0B
} eMBException;
typedef eMBException( *pxMBFunctionHandler ) ( UCHAR * pucFrame, USHORT * pusLength );
typedef struct
{
UCHAR ucFunctionCode;
pxMBFunctionHandler pxHandler;
} xMBFunctionHandler;
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

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components/net/freemodbus/modbus/include/mbutils.h
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/*
* 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: mbutils.h,v 1.5 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_UTILS_H
#define _MB_UTILS_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/*! \defgroup modbus_utils Utilities
*
* This module contains some utility functions which can be used by
* the application. It includes some special functions for working with
* bitfields backed by a character array buffer.
*
*/
/*! \addtogroup modbus_utils
* @{
*/
/*! \brief Function to set bits in a byte buffer.
*
* This function allows the efficient use of an array to implement bitfields.
* The array used for storing the bits must always be a multiple of two
* bytes. Up to eight bits can be set or cleared in one operation.
*
* \param ucByteBuf A buffer where the bit values are stored. Must be a
* multiple of 2 bytes. No length checking is performed and if
* usBitOffset / 8 is greater than the size of the buffer memory contents
* is overwritten.
* \param usBitOffset The starting address of the bits to set. The first
* bit has the offset 0.
* \param ucNBits Number of bits to modify. The value must always be smaller
* than 8.
* \param ucValues Thew new values for the bits. The value for the first bit
* starting at <code>usBitOffset</code> is the LSB of the value
* <code>ucValues</code>
*
* \code
* ucBits[2] = {0, 0};
*
* // Set bit 4 to 1 (read: set 1 bit starting at bit offset 4 to value 1)
* xMBUtilSetBits( ucBits, 4, 1, 1 );
*
* // Set bit 7 to 1 and bit 8 to 0.
* xMBUtilSetBits( ucBits, 7, 2, 0x01 );
*
* // Set bits 8 - 11 to 0x05 and bits 12 - 15 to 0x0A;
* xMBUtilSetBits( ucBits, 8, 8, 0x5A);
* \endcode
*/
void xMBUtilSetBits( UCHAR * ucByteBuf, USHORT usBitOffset,
UCHAR ucNBits, UCHAR ucValues );
/*! \brief Function to read bits in a byte buffer.
*
* This function is used to extract up bit values from an array. Up to eight
* bit values can be extracted in one step.
*
* \param ucByteBuf A buffer where the bit values are stored.
* \param usBitOffset The starting address of the bits to set. The first
* bit has the offset 0.
* \param ucNBits Number of bits to modify. The value must always be smaller
* than 8.
*
* \code
* UCHAR ucBits[2] = {0, 0};
* UCHAR ucResult;
*
* // Extract the bits 3 - 10.
* ucResult = xMBUtilGetBits( ucBits, 3, 8 );
* \endcode
*/
UCHAR xMBUtilGetBits( UCHAR * ucByteBuf, USHORT usBitOffset,
UCHAR ucNBits );
/*! @} */
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

412
components/net/freemodbus/modbus/mb.c
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@ -1,412 +0,0 @@
/*
* 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: mb.c,v 1.27 2007/02/18 23:45:41 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbconfig.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbfunc.h"
#include "mbport.h"
#if MB_SLAVE_RTU_ENABLED == 1
#include "mbrtu.h"
#endif
#if MB_SLAVE_ASCII_ENABLED == 1
#include "mbascii.h"
#endif
#if MB_SLAVE_TCP_ENABLED == 1
#include "mbtcp.h"
#endif
#ifndef MB_PORT_HAS_CLOSE
#define MB_PORT_HAS_CLOSE 0
#endif
/* ----------------------- Static variables ---------------------------------*/
static UCHAR ucMBAddress;
static eMBMode eMBCurrentMode;
static enum
{
STATE_ENABLED,
STATE_DISABLED,
STATE_NOT_INITIALIZED
} eMBState = STATE_NOT_INITIALIZED;
/* Functions pointer which are initialized in eMBInit( ). Depending on the
* mode (RTU or ASCII) the are set to the correct implementations.
* Using for Modbus Slave
*/
static peMBFrameSend peMBFrameSendCur;
static pvMBFrameStart pvMBFrameStartCur;
static pvMBFrameStop pvMBFrameStopCur;
static peMBFrameReceive peMBFrameReceiveCur;
static pvMBFrameClose pvMBFrameCloseCur;
/* Callback functions required by the porting layer. They are called when
* an external event has happend which includes a timeout or the reception
* or transmission of a character.
* Using for Modbus Slave
*/
BOOL( *pxMBFrameCBByteReceived ) ( void );
BOOL( *pxMBFrameCBTransmitterEmpty ) ( void );
BOOL( *pxMBPortCBTimerExpired ) ( void );
BOOL( *pxMBFrameCBReceiveFSMCur ) ( void );
BOOL( *pxMBFrameCBTransmitFSMCur ) ( void );
/* An array of Modbus functions handlers which associates Modbus function
* codes with implementing functions.
*/
static xMBFunctionHandler xFuncHandlers[MB_FUNC_HANDLERS_MAX] = {
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
{MB_FUNC_OTHER_REPORT_SLAVEID, eMBFuncReportSlaveID},
#endif
#if MB_FUNC_READ_INPUT_ENABLED > 0
{MB_FUNC_READ_INPUT_REGISTER, eMBFuncReadInputRegister},
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
{MB_FUNC_READ_HOLDING_REGISTER, eMBFuncReadHoldingRegister},
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_REGISTERS, eMBFuncWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_REGISTER, eMBFuncWriteHoldingRegister},
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
{MB_FUNC_READWRITE_MULTIPLE_REGISTERS, eMBFuncReadWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_READ_COILS_ENABLED > 0
{MB_FUNC_READ_COILS, eMBFuncReadCoils},
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
{MB_FUNC_WRITE_SINGLE_COIL, eMBFuncWriteCoil},
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_COILS, eMBFuncWriteMultipleCoils},
#endif
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
{MB_FUNC_READ_DISCRETE_INPUTS, eMBFuncReadDiscreteInputs},
#endif
};
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBInit( eMBMode eMode, UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
/* check preconditions */
if( ( ucSlaveAddress == MB_ADDRESS_BROADCAST ) ||
( ucSlaveAddress < MB_ADDRESS_MIN ) || ( ucSlaveAddress > MB_ADDRESS_MAX ) )
{
eStatus = MB_EINVAL;
}
else
{
ucMBAddress = ucSlaveAddress;
switch ( eMode )
{
#if MB_SLAVE_RTU_ENABLED > 0
case MB_RTU:
pvMBFrameStartCur = eMBRTUStart;
pvMBFrameStopCur = eMBRTUStop;
peMBFrameSendCur = eMBRTUSend;
peMBFrameReceiveCur = eMBRTUReceive;
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBPortClose : NULL;
pxMBFrameCBByteReceived = xMBRTUReceiveFSM;
pxMBFrameCBTransmitterEmpty = xMBRTUTransmitFSM;
pxMBPortCBTimerExpired = xMBRTUTimerT35Expired;
eStatus = eMBRTUInit( ucMBAddress, ucPort, ulBaudRate, eParity );
break;
#endif
#if MB_SLAVE_ASCII_ENABLED > 0
case MB_ASCII:
pvMBFrameStartCur = eMBASCIIStart;
pvMBFrameStopCur = eMBASCIIStop;
peMBFrameSendCur = eMBASCIISend;
peMBFrameReceiveCur = eMBASCIIReceive;
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBPortClose : NULL;
pxMBFrameCBByteReceived = xMBASCIIReceiveFSM;
pxMBFrameCBTransmitterEmpty = xMBASCIITransmitFSM;
pxMBPortCBTimerExpired = xMBASCIITimerT1SExpired;
eStatus = eMBASCIIInit( ucMBAddress, ucPort, ulBaudRate, eParity );
break;
#endif
default:
eStatus = MB_EINVAL;
break;
}
if( eStatus == MB_ENOERR )
{
if( !xMBPortEventInit( ) )
{
/* port dependent event module initalization failed. */
eStatus = MB_EPORTERR;
}
else
{
eMBCurrentMode = eMode;
eMBState = STATE_DISABLED;
}
}
}
return eStatus;
}
#if MB_SLAVE_TCP_ENABLED > 0
eMBErrorCode
eMBTCPInit( USHORT ucTCPPort )
{
eMBErrorCode eStatus = MB_ENOERR;
if( ( eStatus = eMBTCPDoInit( ucTCPPort ) ) != MB_ENOERR )
{
eMBState = STATE_DISABLED;
}
else if( !xMBPortEventInit( ) )
{
/* Port dependent event module initalization failed. */
eStatus = MB_EPORTERR;
}
else
{
pvMBFrameStartCur = eMBTCPStart;
pvMBFrameStopCur = eMBTCPStop;
peMBFrameReceiveCur = eMBTCPReceive;
peMBFrameSendCur = eMBTCPSend;
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBTCPPortClose : NULL;
ucMBAddress = MB_TCP_PSEUDO_ADDRESS;
eMBCurrentMode = MB_TCP;
eMBState = STATE_DISABLED;
}
return eStatus;
}
#endif
eMBErrorCode
eMBRegisterCB( UCHAR ucFunctionCode, pxMBFunctionHandler pxHandler )
{
int i;
eMBErrorCode eStatus;
if( ( 0 < ucFunctionCode ) && ( ucFunctionCode <= 127 ) )
{
ENTER_CRITICAL_SECTION( );
if( pxHandler != NULL )
{
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
{
if( ( xFuncHandlers[i].pxHandler == NULL ) ||
( xFuncHandlers[i].pxHandler == pxHandler ) )
{
xFuncHandlers[i].ucFunctionCode = ucFunctionCode;
xFuncHandlers[i].pxHandler = pxHandler;
break;
}
}
eStatus = ( i != MB_FUNC_HANDLERS_MAX ) ? MB_ENOERR : MB_ENORES;
}
else
{
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
{
if( xFuncHandlers[i].ucFunctionCode == ucFunctionCode )
{
xFuncHandlers[i].ucFunctionCode = 0;
xFuncHandlers[i].pxHandler = NULL;
break;
}
}
/* Remove can't fail. */
eStatus = MB_ENOERR;
}
EXIT_CRITICAL_SECTION( );
}
else
{
eStatus = MB_EINVAL;
}
return eStatus;
}
eMBErrorCode
eMBClose( void )
{
eMBErrorCode eStatus = MB_ENOERR;
if( eMBState == STATE_DISABLED )
{
if( pvMBFrameCloseCur != NULL )
{
pvMBFrameCloseCur( );
}
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode
eMBEnable( void )
{
eMBErrorCode eStatus = MB_ENOERR;
if( eMBState == STATE_DISABLED )
{
/* Activate the protocol stack. */
pvMBFrameStartCur( );
eMBState = STATE_ENABLED;
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode
eMBDisable( void )
{
eMBErrorCode eStatus;
if( eMBState == STATE_ENABLED )
{
pvMBFrameStopCur( );
eMBState = STATE_DISABLED;
eStatus = MB_ENOERR;
}
else if( eMBState == STATE_DISABLED )
{
eStatus = MB_ENOERR;
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode eMBPoll( void )
{
static UCHAR *ucMBFrame;
static UCHAR ucRcvAddress;
static UCHAR ucFunctionCode;
static USHORT usLength;
static eMBException eException;
int i;
eMBErrorCode eStatus = MB_ENOERR;
eMBEventType eEvent;
/* Check if the protocol stack is ready. */
if( eMBState != STATE_ENABLED )
{
return MB_EILLSTATE;
}
/* Check if there is a event available. If not return control to caller.
* Otherwise we will handle the event. */
if( xMBPortEventGet( &eEvent ) == TRUE )
{
switch ( eEvent )
{
case EV_READY:
break;
case EV_FRAME_RECEIVED:
eStatus = peMBFrameReceiveCur( &ucRcvAddress, &ucMBFrame, &usLength );
if( eStatus == MB_ENOERR )
{
/* Check if the frame is for us. If not ignore the frame. */
if( ( ucRcvAddress == ucMBAddress ) || ( ucRcvAddress == MB_ADDRESS_BROADCAST ) )
{
( void )xMBPortEventPost( EV_EXECUTE );
}
}
break;
case EV_EXECUTE:
ucFunctionCode = ucMBFrame[MB_PDU_FUNC_OFF];
eException = MB_EX_ILLEGAL_FUNCTION;
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
{
/* No more function handlers registered. Abort. */
if( xFuncHandlers[i].ucFunctionCode == 0 )
{
break;
}
else if( xFuncHandlers[i].ucFunctionCode == ucFunctionCode )
{
eException = xFuncHandlers[i].pxHandler( ucMBFrame, &usLength );
break;
}
}
/* If the request was not sent to the broadcast address we
* return a reply. */
if( ucRcvAddress != MB_ADDRESS_BROADCAST )
{
if( eException != MB_EX_NONE )
{
/* An exception occured. Build an error frame. */
usLength = 0;
ucMBFrame[usLength++] = ( UCHAR )( ucFunctionCode | MB_FUNC_ERROR );
ucMBFrame[usLength++] = eException;
}
eStatus = peMBFrameSendCur( ucMBAddress, ucMBFrame, usLength );
}
break;
case EV_FRAME_SENT:
break;
}
}
return MB_ENOERR;
}

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components/net/freemodbus/modbus/mb_m.c
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@ -1,406 +0,0 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
* 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: mbrtu_m.c,v 1.60 2013/08/20 11:18:10 Armink Add Master Functions $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbconfig.h"
#include "mbframe.h"
#include "mbproto.h"
#include "mbfunc.h"
#include "mbport.h"
#if MB_MASTER_RTU_ENABLED == 1
#include "mbrtu.h"
#endif
#if MB_MASTER_ASCII_ENABLED == 1
#include "mbascii.h"
#endif
#if MB_MASTER_TCP_ENABLED == 1
#include "mbtcp.h"
#endif
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
#ifndef MB_PORT_HAS_CLOSE
#define MB_PORT_HAS_CLOSE 0
#endif
/* ----------------------- Static variables ---------------------------------*/
static UCHAR ucMBMasterDestAddress;
static BOOL xMBRunInMasterMode = FALSE;
static eMBMasterErrorEventType eMBMasterCurErrorType;
static enum
{
STATE_ENABLED,
STATE_DISABLED,
STATE_NOT_INITIALIZED
} eMBState = STATE_NOT_INITIALIZED;
/* Functions pointer which are initialized in eMBInit( ). Depending on the
* mode (RTU or ASCII) the are set to the correct implementations.
* Using for Modbus Master,Add by Armink 20130813
*/
static peMBFrameSend peMBMasterFrameSendCur;
static pvMBFrameStart pvMBMasterFrameStartCur;
static pvMBFrameStop pvMBMasterFrameStopCur;
static peMBFrameReceive peMBMasterFrameReceiveCur;
static pvMBFrameClose pvMBMasterFrameCloseCur;
/* Callback functions required by the porting layer. They are called when
* an external event has happend which includes a timeout or the reception
* or transmission of a character.
* Using for Modbus Master,Add by Armink 20130813
*/
BOOL( *pxMBMasterFrameCBByteReceived ) ( void );
BOOL( *pxMBMasterFrameCBTransmitterEmpty ) ( void );
BOOL( *pxMBMasterPortCBTimerExpired ) ( void );
BOOL( *pxMBMasterFrameCBReceiveFSMCur ) ( void );
BOOL( *pxMBMasterFrameCBTransmitFSMCur ) ( void );
/* An array of Modbus functions handlers which associates Modbus function
* codes with implementing functions.
*/
static xMBFunctionHandler xMasterFuncHandlers[MB_FUNC_HANDLERS_MAX] = {
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
//TODO Add Master function define
{MB_FUNC_OTHER_REPORT_SLAVEID, eMBFuncReportSlaveID},
#endif
#if MB_FUNC_READ_INPUT_ENABLED > 0
{MB_FUNC_READ_INPUT_REGISTER, eMBMasterFuncReadInputRegister},
#endif
#if MB_FUNC_READ_HOLDING_ENABLED > 0
{MB_FUNC_READ_HOLDING_REGISTER, eMBMasterFuncReadHoldingRegister},
#endif
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_REGISTERS, eMBMasterFuncWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
{MB_FUNC_WRITE_REGISTER, eMBMasterFuncWriteHoldingRegister},
#endif
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
{MB_FUNC_READWRITE_MULTIPLE_REGISTERS, eMBMasterFuncReadWriteMultipleHoldingRegister},
#endif
#if MB_FUNC_READ_COILS_ENABLED > 0
{MB_FUNC_READ_COILS, eMBMasterFuncReadCoils},
#endif
#if MB_FUNC_WRITE_COIL_ENABLED > 0
{MB_FUNC_WRITE_SINGLE_COIL, eMBMasterFuncWriteCoil},
#endif
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
{MB_FUNC_WRITE_MULTIPLE_COILS, eMBMasterFuncWriteMultipleCoils},
#endif
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
{MB_FUNC_READ_DISCRETE_INPUTS, eMBMasterFuncReadDiscreteInputs},
#endif
};
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBMasterInit( eMBMode eMode, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
switch (eMode)
{
#if MB_MASTER_RTU_ENABLED > 0
case MB_RTU:
pvMBMasterFrameStartCur = eMBMasterRTUStart;
pvMBMasterFrameStopCur = eMBMasterRTUStop;
peMBMasterFrameSendCur = eMBMasterRTUSend;
peMBMasterFrameReceiveCur = eMBMasterRTUReceive;
pvMBMasterFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBMasterPortClose : NULL;
pxMBMasterFrameCBByteReceived = xMBMasterRTUReceiveFSM;
pxMBMasterFrameCBTransmitterEmpty = xMBMasterRTUTransmitFSM;
pxMBMasterPortCBTimerExpired = xMBMasterRTUTimerExpired;
eStatus = eMBMasterRTUInit(ucPort, ulBaudRate, eParity);
break;
#endif
#if MB_MASTER_ASCII_ENABLED > 0
case MB_ASCII:
pvMBMasterFrameStartCur = eMBMasterASCIIStart;
pvMBMasterFrameStopCur = eMBMasterASCIIStop;
peMBMasterFrameSendCur = eMBMasterASCIISend;
peMBMasterFrameReceiveCur = eMBMasterASCIIReceive;
pvMBMasterFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBMasterPortClose : NULL;
pxMBMasterFrameCBByteReceived = xMBMasterASCIIReceiveFSM;
pxMBMasterFrameCBTransmitterEmpty = xMBMasterASCIITransmitFSM;
pxMBMasterPortCBTimerExpired = xMBMasterASCIITimerT1SExpired;
eStatus = eMBMasterASCIIInit(ucPort, ulBaudRate, eParity );
break;
#endif
default:
eStatus = MB_EINVAL;
break;
}
if (eStatus == MB_ENOERR)
{
if (!xMBMasterPortEventInit())
{
/* port dependent event module initalization failed. */
eStatus = MB_EPORTERR;
}
else
{
eMBState = STATE_DISABLED;
}
/* initialize the OS resource for modbus master. */
vMBMasterOsResInit();
}
return eStatus;
}
eMBErrorCode
eMBMasterClose( void )
{
eMBErrorCode eStatus = MB_ENOERR;
if( eMBState == STATE_DISABLED )
{
if( pvMBMasterFrameCloseCur != NULL )
{
pvMBMasterFrameCloseCur( );
}
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode
eMBMasterEnable( void )
{
eMBErrorCode eStatus = MB_ENOERR;
if( eMBState == STATE_DISABLED )
{
/* Activate the protocol stack. */
pvMBMasterFrameStartCur( );
eMBState = STATE_ENABLED;
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode
eMBMasterDisable( void )
{
eMBErrorCode eStatus;
if( eMBState == STATE_ENABLED )
{
pvMBMasterFrameStopCur( );
eMBState = STATE_DISABLED;
eStatus = MB_ENOERR;
}
else if( eMBState == STATE_DISABLED )
{
eStatus = MB_ENOERR;
}
else
{
eStatus = MB_EILLSTATE;
}
return eStatus;
}
eMBErrorCode
eMBMasterPoll( void )
{
static UCHAR *ucMBFrame;
static UCHAR ucRcvAddress;
static UCHAR ucFunctionCode;
static USHORT usLength;
static eMBException eException;
int i , j;
eMBErrorCode eStatus = MB_ENOERR;
eMBMasterEventType eEvent;
eMBMasterErrorEventType errorType;
/* Check if the protocol stack is ready. */
if( eMBState != STATE_ENABLED )
{
return MB_EILLSTATE;
}
/* Check if there is a event available. If not return control to caller.
* Otherwise we will handle the event. */
if( xMBMasterPortEventGet( &eEvent ) == TRUE )
{
switch ( eEvent )
{
case EV_MASTER_READY:
break;
case EV_MASTER_FRAME_RECEIVED:
eStatus = peMBMasterFrameReceiveCur( &ucRcvAddress, &ucMBFrame, &usLength );
/* Check if the frame is for us. If not ,send an error process event. */
if ( ( eStatus == MB_ENOERR ) && ( ucRcvAddress == ucMBMasterGetDestAddress() ) )
{
( void ) xMBMasterPortEventPost( EV_MASTER_EXECUTE );
}
else
{
vMBMasterSetErrorType(EV_ERROR_RECEIVE_DATA);
( void ) xMBMasterPortEventPost( EV_MASTER_ERROR_PROCESS );
}
break;
case EV_MASTER_EXECUTE:
ucFunctionCode = ucMBFrame[MB_PDU_FUNC_OFF];
eException = MB_EX_ILLEGAL_FUNCTION;
/* If receive frame has exception .The receive function code highest bit is 1.*/
if(ucFunctionCode >> 7) {
eException = (eMBException)ucMBFrame[MB_PDU_DATA_OFF];
}
else
{
for (i = 0; i < MB_FUNC_HANDLERS_MAX; i++)
{
/* No more function handlers registered. Abort. */
if (xMasterFuncHandlers[i].ucFunctionCode == 0) {
break;
}
else if (xMasterFuncHandlers[i].ucFunctionCode == ucFunctionCode) {
vMBMasterSetCBRunInMasterMode(TRUE);
/* If master request is broadcast,
* the master need execute function for all slave.
*/
if ( xMBMasterRequestIsBroadcast() ) {
usLength = usMBMasterGetPDUSndLength();
for(j = 1; j <= MB_MASTER_TOTAL_SLAVE_NUM; j++){
vMBMasterSetDestAddress(j);
eException = xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
}
}
else {
eException = xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
}
vMBMasterSetCBRunInMasterMode(FALSE);
break;
}
}
}
/* If master has exception ,Master will send error process.Otherwise the Master is idle.*/
if (eException != MB_EX_NONE) {
vMBMasterSetErrorType(EV_ERROR_EXECUTE_FUNCTION);
( void ) xMBMasterPortEventPost( EV_MASTER_ERROR_PROCESS );
}
else {
vMBMasterCBRequestScuuess( );
vMBMasterRunResRelease( );
}
break;
case EV_MASTER_FRAME_SENT:
/* Master is busy now. */
vMBMasterGetPDUSndBuf( &ucMBFrame );
eStatus = peMBMasterFrameSendCur( ucMBMasterGetDestAddress(), ucMBFrame, usMBMasterGetPDUSndLength() );
break;
case EV_MASTER_ERROR_PROCESS:
/* Execute specified error process callback function. */
errorType = eMBMasterGetErrorType();
vMBMasterGetPDUSndBuf( &ucMBFrame );
switch (errorType) {
case EV_ERROR_RESPOND_TIMEOUT:
vMBMasterErrorCBRespondTimeout(ucMBMasterGetDestAddress(),
ucMBFrame, usMBMasterGetPDUSndLength());
break;
case EV_ERROR_RECEIVE_DATA:
vMBMasterErrorCBReceiveData(ucMBMasterGetDestAddress(),
ucMBFrame, usMBMasterGetPDUSndLength());
break;
case EV_ERROR_EXECUTE_FUNCTION:
vMBMasterErrorCBExecuteFunction(ucMBMasterGetDestAddress(),
ucMBFrame, usMBMasterGetPDUSndLength());
break;
}
vMBMasterRunResRelease();
break;
}
}
return MB_ENOERR;
}
/* Get whether the Modbus Master is run in master mode.*/
BOOL xMBMasterGetCBRunInMasterMode( void )
{
return xMBRunInMasterMode;
}
/* Set whether the Modbus Master is run in master mode.*/
void vMBMasterSetCBRunInMasterMode( BOOL IsMasterMode )
{
xMBRunInMasterMode = IsMasterMode;
}
/* Get Modbus Master send destination address. */
UCHAR ucMBMasterGetDestAddress( void )
{
return ucMBMasterDestAddress;
}
/* Set Modbus Master send destination address. */
void vMBMasterSetDestAddress( UCHAR Address )
{
ucMBMasterDestAddress = Address;
}
/* Get Modbus Master current error event type. */
eMBMasterErrorEventType eMBMasterGetErrorType( void )
{
return eMBMasterCurErrorType;
}
/* Set Modbus Master current error event type. */
void vMBMasterSetErrorType( eMBMasterErrorEventType errorType )
{
eMBMasterCurErrorType = errorType;
}
#endif

98
components/net/freemodbus/modbus/rtu/mbcrc.c
View File

@ -1,98 +0,0 @@
/*
* 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: mbcrc.c,v 1.7 2007/02/18 23:50:27 wolti Exp $
*/
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
static const UCHAR aucCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40
};
static const UCHAR aucCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9,
0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D,
0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF,
0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB,
0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97,
0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89,
0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
0x41, 0x81, 0x80, 0x40
};
USHORT
usMBCRC16( UCHAR * pucFrame, USHORT usLen )
{
UCHAR ucCRCHi = 0xFF;
UCHAR ucCRCLo = 0xFF;
int iIndex;
while( usLen-- )
{
iIndex = ucCRCLo ^ *( pucFrame++ );
ucCRCLo = ( UCHAR )( ucCRCHi ^ aucCRCHi[iIndex] );
ucCRCHi = aucCRCLo[iIndex];
}
return ( USHORT )( ucCRCHi << 8 | ucCRCLo );
}

36
components/net/freemodbus/modbus/rtu/mbcrc.h
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@ -1,36 +0,0 @@
/*
* 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: mbcrc.h,v 1.5 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_CRC_H
#define _MB_CRC_H
USHORT usMBCRC16( UCHAR * pucFrame, USHORT usLen );
#endif

354
components/net/freemodbus/modbus/rtu/mbrtu.c
View File

@ -1,354 +0,0 @@
/*
* 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: mbrtu.c,v 1.18 2007/09/12 10:15:56 wolti Exp $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbrtu.h"
#include "mbframe.h"
#include "mbcrc.h"
#include "mbport.h"
/* ----------------------- Defines ------------------------------------------*/
#define MB_SER_PDU_SIZE_MIN 4 /*!< Minimum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_CRC 2 /*!< Size of CRC field in PDU. */
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
STATE_RX_INIT, /*!< Receiver is in initial state. */
STATE_RX_IDLE, /*!< Receiver is in idle state. */
STATE_RX_RCV, /*!< Frame is beeing received. */
STATE_RX_ERROR /*!< If the frame is invalid. */
} eMBRcvState;
typedef enum
{
STATE_TX_IDLE, /*!< Transmitter is in idle state. */
STATE_TX_XMIT /*!< Transmitter is in transfer state. */
} eMBSndState;
/* ----------------------- Static variables ---------------------------------*/
static volatile eMBSndState eSndState;
static volatile eMBRcvState eRcvState;
volatile UCHAR ucRTUBuf[MB_SER_PDU_SIZE_MAX];
static volatile UCHAR *pucSndBufferCur;
static volatile USHORT usSndBufferCount;
static volatile USHORT usRcvBufferPos;
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBRTUInit( UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
ULONG usTimerT35_50us;
( void )ucSlaveAddress;
ENTER_CRITICAL_SECTION( );
/* Modbus RTU uses 8 Databits. */
if( xMBPortSerialInit( ucPort, ulBaudRate, 8, eParity ) != TRUE )
{
eStatus = MB_EPORTERR;
}
else
{
/* If baudrate > 19200 then we should use the fixed timer values
* t35 = 1750us. Otherwise t35 must be 3.5 times the character time.
*/
if( ulBaudRate > 19200 )
{
usTimerT35_50us = 35; /* 1800us. */
}
else
{
/* The timer reload value for a character is given by:
*
* ChTimeValue = Ticks_per_1s / ( Baudrate / 11 )
* = 11 * Ticks_per_1s / Baudrate
* = 220000 / Baudrate
* The reload for t3.5 is 1.5 times this value and similary
* for t3.5.
*/
usTimerT35_50us = ( 7UL * 220000UL ) / ( 2UL * ulBaudRate );
}
if( xMBPortTimersInit( ( USHORT ) usTimerT35_50us ) != TRUE )
{
eStatus = MB_EPORTERR;
}
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
void
eMBRTUStart( void )
{
ENTER_CRITICAL_SECTION( );
/* Initially the receiver is in the state STATE_RX_INIT. we start
* the timer and if no character is received within t3.5 we change
* to STATE_RX_IDLE. This makes sure that we delay startup of the
* modbus protocol stack until the bus is free.
*/
eRcvState = STATE_RX_INIT;
vMBPortSerialEnable( TRUE, FALSE );
vMBPortTimersEnable( );
EXIT_CRITICAL_SECTION( );
}
void
eMBRTUStop( void )
{
ENTER_CRITICAL_SECTION( );
vMBPortSerialEnable( FALSE, FALSE );
vMBPortTimersDisable( );
EXIT_CRITICAL_SECTION( );
}
eMBErrorCode
eMBRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
{
eMBErrorCode eStatus = MB_ENOERR;
ENTER_CRITICAL_SECTION( );
RT_ASSERT( usRcvBufferPos <= MB_SER_PDU_SIZE_MAX );
/* Length and CRC check */
if( ( usRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
&& ( usMBCRC16( ( UCHAR * ) ucRTUBuf, usRcvBufferPos ) == 0 ) )
{
/* Save the address field. All frames are passed to the upper layed
* and the decision if a frame is used is done there.
*/
*pucRcvAddress = ucRTUBuf[MB_SER_PDU_ADDR_OFF];
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
* size of address field and CRC checksum.
*/
*pusLength = ( USHORT )( usRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_CRC );
/* Return the start of the Modbus PDU to the caller. */
*pucFrame = ( UCHAR * ) & ucRTUBuf[MB_SER_PDU_PDU_OFF];
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
eMBErrorCode
eMBRTUSend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT usCRC16;
ENTER_CRITICAL_SECTION( );
/* Check if the receiver is still in idle state. If not we where to
* slow with processing the received frame and the master sent another
* frame on the network. We have to abort sending the frame.
*/
if( eRcvState == STATE_RX_IDLE )
{
/* First byte before the Modbus-PDU is the slave address. */
pucSndBufferCur = ( UCHAR * ) pucFrame - 1;
usSndBufferCount = 1;
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
pucSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
usSndBufferCount += usLength;
/* Calculate CRC16 checksum for Modbus-Serial-Line-PDU. */
usCRC16 = usMBCRC16( ( UCHAR * ) pucSndBufferCur, usSndBufferCount );
ucRTUBuf[usSndBufferCount++] = ( UCHAR )( usCRC16 & 0xFF );
ucRTUBuf[usSndBufferCount++] = ( UCHAR )( usCRC16 >> 8 );
/* Activate the transmitter. */
eSndState = STATE_TX_XMIT;
vMBPortSerialEnable( FALSE, TRUE );
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
BOOL
xMBRTUReceiveFSM( void )
{
BOOL xTaskNeedSwitch = FALSE;
UCHAR ucByte;
RT_ASSERT( eSndState == STATE_TX_IDLE );
/* Always read the character. */
( void )xMBPortSerialGetByte( ( CHAR * ) & ucByte );
switch ( eRcvState )
{
/* If we have received a character in the init state we have to
* wait until the frame is finished.
*/
case STATE_RX_INIT:
vMBPortTimersEnable( );
break;
/* In the error state we wait until all characters in the
* damaged frame are transmitted.
*/
case STATE_RX_ERROR:
vMBPortTimersEnable( );
break;
/* In the idle state we wait for a new character. If a character
* is received the t1.5 and t3.5 timers are started and the
* receiver is in the state STATE_RX_RECEIVCE.
*/
case STATE_RX_IDLE:
usRcvBufferPos = 0;
ucRTUBuf[usRcvBufferPos++] = ucByte;
eRcvState = STATE_RX_RCV;
/* Enable t3.5 timers. */
vMBPortTimersEnable( );
break;
/* We are currently receiving a frame. Reset the timer after
* every character received. If more than the maximum possible
* number of bytes in a modbus frame is received the frame is
* ignored.
*/
case STATE_RX_RCV:
if( usRcvBufferPos < MB_SER_PDU_SIZE_MAX )
{
ucRTUBuf[usRcvBufferPos++] = ucByte;
}
else
{
eRcvState = STATE_RX_ERROR;
}
vMBPortTimersEnable();
break;
}
return xTaskNeedSwitch;
}
BOOL
xMBRTUTransmitFSM( void )
{
BOOL xNeedPoll = FALSE;
RT_ASSERT( eRcvState == STATE_RX_IDLE );
switch ( eSndState )
{
/* We should not get a transmitter event if the transmitter is in
* idle state. */
case STATE_TX_IDLE:
/* enable receiver/disable transmitter. */
vMBPortSerialEnable( TRUE, FALSE );
break;
case STATE_TX_XMIT:
/* check if we are finished. */
if( usSndBufferCount != 0 )
{
xMBPortSerialPutByte( ( CHAR )*pucSndBufferCur );
pucSndBufferCur++; /* next byte in sendbuffer. */
usSndBufferCount--;
}
else
{
xNeedPoll = xMBPortEventPost( EV_FRAME_SENT );
/* Disable transmitter. This prevents another transmit buffer
* empty interrupt. */
vMBPortSerialEnable( TRUE, FALSE );
eSndState = STATE_TX_IDLE;
}
break;
}
return xNeedPoll;
}
BOOL
xMBRTUTimerT35Expired( void )
{
BOOL xNeedPoll = FALSE;
switch ( eRcvState )
{
/* Timer t35 expired. Startup phase is finished. */
case STATE_RX_INIT:
xNeedPoll = xMBPortEventPost( EV_READY );
break;
/* A frame was received and t35 expired. Notify the listener that
* a new frame was received. */
case STATE_RX_RCV:
xNeedPoll = xMBPortEventPost( EV_FRAME_RECEIVED );
break;
/* An error occured while receiving the frame. */
case STATE_RX_ERROR:
break;
/* Function called in an illegal state. */
default:
RT_ASSERT( ( eRcvState == STATE_RX_INIT ) ||
( eRcvState == STATE_RX_RCV ) || ( eRcvState == STATE_RX_ERROR ) );
break;
}
vMBPortTimersDisable( );
eRcvState = STATE_RX_IDLE;
return xNeedPoll;
}

64
components/net/freemodbus/modbus/rtu/mbrtu.h
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@ -1,64 +0,0 @@
/*
* 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: mbrtu.h,v 1.9 2006/12/07 22:10:34 wolti Exp $
* File: $Id: mbrtu.h,v 1.60 2013/08/17 13:11:42 Armink Add Master Functions $
*/
#include "mbconfig.h"
#ifndef _MB_RTU_H
#define _MB_RTU_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
eMBErrorCode eMBRTUInit( UCHAR slaveAddress, UCHAR ucPort, ULONG ulBaudRate,
eMBParity eParity );
void eMBRTUStart( void );
void eMBRTUStop( void );
eMBErrorCode eMBRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength );
eMBErrorCode eMBRTUSend( UCHAR slaveAddress, const UCHAR * pucFrame, USHORT usLength );
BOOL xMBRTUReceiveFSM( void );
BOOL xMBRTUTransmitFSM( void );
BOOL xMBRTUTimerT15Expired( void );
BOOL xMBRTUTimerT35Expired( void );
#if MB_MASTER_RTU_ENABLED > 0
eMBErrorCode eMBMasterRTUInit( UCHAR ucPort, ULONG ulBaudRate,eMBParity eParity );
void eMBMasterRTUStart( void );
void eMBMasterRTUStop( void );
eMBErrorCode eMBMasterRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength );
eMBErrorCode eMBMasterRTUSend( UCHAR slaveAddress, const UCHAR * pucFrame, USHORT usLength );
BOOL xMBMasterRTUReceiveFSM( void );
BOOL xMBMasterRTUTransmitFSM( void );
BOOL xMBMasterRTUTimerExpired( void );
#endif
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

443
components/net/freemodbus/modbus/rtu/mbrtu_m.c
View File

@ -1,443 +0,0 @@
/*
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
* Copyright (c) 2013 China Beijing Armink <armink.ztl@gmail.com>
* 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: mbrtu_m.c,v 1.60 2013/08/17 11:42:56 Armink Add Master Functions $
*/
/* ----------------------- System includes ----------------------------------*/
#include "stdlib.h"
#include "string.h"
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbrtu.h"
#include "mbframe.h"
#include "mbcrc.h"
#include "mbport.h"
#if MB_MASTER_RTU_ENABLED > 0
/* ----------------------- Defines ------------------------------------------*/
#define MB_SER_PDU_SIZE_MIN 4 /*!< Minimum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus RTU frame. */
#define MB_SER_PDU_SIZE_CRC 2 /*!< Size of CRC field in PDU. */
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
/* ----------------------- Type definitions ---------------------------------*/
typedef enum
{
STATE_M_RX_INIT, /*!< Receiver is in initial state. */
STATE_M_RX_IDLE, /*!< Receiver is in idle state. */
STATE_M_RX_RCV, /*!< Frame is beeing received. */
STATE_M_RX_ERROR, /*!< If the frame is invalid. */
} eMBMasterRcvState;
typedef enum
{
STATE_M_TX_IDLE, /*!< Transmitter is in idle state. */
STATE_M_TX_XMIT, /*!< Transmitter is in transfer state. */
STATE_M_TX_XFWR, /*!< Transmitter is in transfer finish and wait receive state. */
} eMBMasterSndState;
/* ----------------------- Static variables ---------------------------------*/
static volatile eMBMasterSndState eSndState;
static volatile eMBMasterRcvState eRcvState;
static volatile UCHAR ucMasterRTUSndBuf[MB_PDU_SIZE_MAX];
static volatile UCHAR ucMasterRTURcvBuf[MB_SER_PDU_SIZE_MAX];
static volatile USHORT usMasterSendPDULength;
static volatile UCHAR *pucMasterSndBufferCur;
static volatile USHORT usMasterSndBufferCount;
static volatile USHORT usMasterRcvBufferPos;
static volatile BOOL xFrameIsBroadcast = FALSE;
static volatile eMBMasterTimerMode eMasterCurTimerMode;
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBMasterRTUInit(UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
{
eMBErrorCode eStatus = MB_ENOERR;
ULONG usTimerT35_50us;
ENTER_CRITICAL_SECTION( );
/* Modbus RTU uses 8 Databits. */
if( xMBMasterPortSerialInit( ucPort, ulBaudRate, 8, eParity ) != TRUE )
{
eStatus = MB_EPORTERR;
}
else
{
/* If baudrate > 19200 then we should use the fixed timer values
* t35 = 1750us. Otherwise t35 must be 3.5 times the character time.
*/
if( ulBaudRate > 19200 )
{
usTimerT35_50us = 35; /* 1800us. */
}
else
{
/* The timer reload value for a character is given by:
*
* ChTimeValue = Ticks_per_1s / ( Baudrate / 11 )
* = 11 * Ticks_per_1s / Baudrate
* = 220000 / Baudrate
* The reload for t3.5 is 1.5 times this value and similary
* for t3.5.
*/
usTimerT35_50us = ( 7UL * 220000UL ) / ( 2UL * ulBaudRate );
}
if( xMBMasterPortTimersInit( ( USHORT ) usTimerT35_50us ) != TRUE )
{
eStatus = MB_EPORTERR;
}
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
void
eMBMasterRTUStart( void )
{
ENTER_CRITICAL_SECTION( );
/* Initially the receiver is in the state STATE_M_RX_INIT. we start
* the timer and if no character is received within t3.5 we change
* to STATE_M_RX_IDLE. This makes sure that we delay startup of the
* modbus protocol stack until the bus is free.
*/
eRcvState = STATE_M_RX_INIT;
vMBMasterPortSerialEnable( TRUE, FALSE );
vMBMasterPortTimersT35Enable( );
EXIT_CRITICAL_SECTION( );
}
void
eMBMasterRTUStop( void )
{
ENTER_CRITICAL_SECTION( );
vMBMasterPortSerialEnable( FALSE, FALSE );
vMBMasterPortTimersDisable( );
EXIT_CRITICAL_SECTION( );
}
eMBErrorCode
eMBMasterRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
{
eMBErrorCode eStatus = MB_ENOERR;
ENTER_CRITICAL_SECTION( );
RT_ASSERT( usMasterRcvBufferPos < MB_SER_PDU_SIZE_MAX );
/* Length and CRC check */
if( ( usMasterRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
&& ( usMBCRC16( ( UCHAR * ) ucMasterRTURcvBuf, usMasterRcvBufferPos ) == 0 ) )
{
/* Save the address field. All frames are passed to the upper layed
* and the decision if a frame is used is done there.
*/
*pucRcvAddress = ucMasterRTURcvBuf[MB_SER_PDU_ADDR_OFF];
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
* size of address field and CRC checksum.
*/
*pusLength = ( USHORT )( usMasterRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_CRC );
/* Return the start of the Modbus PDU to the caller. */
*pucFrame = ( UCHAR * ) & ucMasterRTURcvBuf[MB_SER_PDU_PDU_OFF];
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
eMBErrorCode
eMBMasterRTUSend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT usCRC16;
if ( ucSlaveAddress > MB_MASTER_TOTAL_SLAVE_NUM ) return MB_EINVAL;
ENTER_CRITICAL_SECTION( );
/* Check if the receiver is still in idle state. If not we where to
* slow with processing the received frame and the master sent another
* frame on the network. We have to abort sending the frame.
*/
if( eRcvState == STATE_M_RX_IDLE )
{
/* First byte before the Modbus-PDU is the slave address. */
pucMasterSndBufferCur = ( UCHAR * ) pucFrame - 1;
usMasterSndBufferCount = 1;
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
pucMasterSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
usMasterSndBufferCount += usLength;
/* Calculate CRC16 checksum for Modbus-Serial-Line-PDU. */
usCRC16 = usMBCRC16( ( UCHAR * ) pucMasterSndBufferCur, usMasterSndBufferCount );
ucMasterRTUSndBuf[usMasterSndBufferCount++] = ( UCHAR )( usCRC16 & 0xFF );
ucMasterRTUSndBuf[usMasterSndBufferCount++] = ( UCHAR )( usCRC16 >> 8 );
/* Activate the transmitter. */
eSndState = STATE_M_TX_XMIT;
vMBMasterPortSerialEnable( FALSE, TRUE );
}
else
{
eStatus = MB_EIO;
}
EXIT_CRITICAL_SECTION( );
return eStatus;
}
BOOL
xMBMasterRTUReceiveFSM( void )
{
BOOL xTaskNeedSwitch = FALSE;
UCHAR ucByte;
RT_ASSERT(( eSndState == STATE_M_TX_IDLE ) || ( eSndState == STATE_M_TX_XFWR ));
/* Always read the character. */
( void )xMBMasterPortSerialGetByte( ( CHAR * ) & ucByte );
switch ( eRcvState )
{
/* If we have received a character in the init state we have to
* wait until the frame is finished.
*/
case STATE_M_RX_INIT:
vMBMasterPortTimersT35Enable( );
break;
/* In the error state we wait until all characters in the
* damaged frame are transmitted.
*/
case STATE_M_RX_ERROR:
vMBMasterPortTimersT35Enable( );
break;
/* In the idle state we wait for a new character. If a character
* is received the t1.5 and t3.5 timers are started and the
* receiver is in the state STATE_RX_RECEIVCE and disable early
* the timer of respond timeout .
*/
case STATE_M_RX_IDLE:
/* In time of respond timeout,the receiver receive a frame.
* Disable timer of respond timeout and change the transmiter state to idle.
*/
vMBMasterPortTimersDisable( );
eSndState = STATE_M_TX_IDLE;
usMasterRcvBufferPos = 0;
ucMasterRTURcvBuf[usMasterRcvBufferPos++] = ucByte;
eRcvState = STATE_M_RX_RCV;
/* Enable t3.5 timers. */
vMBMasterPortTimersT35Enable( );
break;
/* We are currently receiving a frame. Reset the timer after
* every character received. If more than the maximum possible
* number of bytes in a modbus frame is received the frame is
* ignored.
*/
case STATE_M_RX_RCV:
if( usMasterRcvBufferPos < MB_SER_PDU_SIZE_MAX )
{
ucMasterRTURcvBuf[usMasterRcvBufferPos++] = ucByte;
}
else
{
eRcvState = STATE_M_RX_ERROR;
}
vMBMasterPortTimersT35Enable();
break;
}
return xTaskNeedSwitch;
}
BOOL
xMBMasterRTUTransmitFSM( void )
{
BOOL xNeedPoll = FALSE;
RT_ASSERT( eRcvState == STATE_M_RX_IDLE );
switch ( eSndState )
{
/* We should not get a transmitter event if the transmitter is in
* idle state. */
case STATE_M_TX_IDLE:
/* enable receiver/disable transmitter. */
vMBMasterPortSerialEnable( TRUE, FALSE );
break;
case STATE_M_TX_XMIT:
/* check if we are finished. */
if( usMasterSndBufferCount != 0 )
{
xMBMasterPortSerialPutByte( ( CHAR )*pucMasterSndBufferCur );
pucMasterSndBufferCur++; /* next byte in sendbuffer. */
usMasterSndBufferCount--;
}
else
{
xFrameIsBroadcast = ( ucMasterRTUSndBuf[MB_SER_PDU_ADDR_OFF] == MB_ADDRESS_BROADCAST ) ? TRUE : FALSE;
/* Disable transmitter. This prevents another transmit buffer
* empty interrupt. */
vMBMasterPortSerialEnable( TRUE, FALSE );
eSndState = STATE_M_TX_XFWR;
/* If the frame is broadcast ,master will enable timer of convert delay,
* else master will enable timer of respond timeout. */
if ( xFrameIsBroadcast == TRUE )
{
vMBMasterPortTimersConvertDelayEnable( );
}
else
{
vMBMasterPortTimersRespondTimeoutEnable( );
}
}
break;
}
return xNeedPoll;
}
BOOL
xMBMasterRTUTimerExpired(void)
{
BOOL xNeedPoll = FALSE;
switch (eRcvState)
{
/* Timer t35 expired. Startup phase is finished. */
case STATE_M_RX_INIT:
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_READY);
break;
/* A frame was received and t35 expired. Notify the listener that
* a new frame was received. */
case STATE_M_RX_RCV:
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_FRAME_RECEIVED);
break;
/* An error occured while receiving the frame. */
case STATE_M_RX_ERROR:
vMBMasterSetErrorType(EV_ERROR_RECEIVE_DATA);
xNeedPoll = xMBMasterPortEventPost( EV_MASTER_ERROR_PROCESS );
break;
/* Function called in an illegal state. */
default:
RT_ASSERT(
( eRcvState == STATE_M_RX_INIT ) || ( eRcvState == STATE_M_RX_RCV ) ||
( eRcvState == STATE_M_RX_ERROR ) || ( eRcvState == STATE_M_RX_IDLE ));
break;
}
eRcvState = STATE_M_RX_IDLE;
switch (eSndState)
{
/* A frame was send finish and convert delay or respond timeout expired.
* If the frame is broadcast,The master will idle,and if the frame is not
* broadcast.Notify the listener process error.*/
case STATE_M_TX_XFWR:
if ( xFrameIsBroadcast == FALSE ) {
vMBMasterSetErrorType(EV_ERROR_RESPOND_TIMEOUT);
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_ERROR_PROCESS);
}
break;
/* Function called in an illegal state. */
default:
RT_ASSERT(
( eSndState == STATE_M_TX_XFWR ) || ( eSndState == STATE_M_TX_IDLE ));
break;
}
eSndState = STATE_M_TX_IDLE;
vMBMasterPortTimersDisable( );
/* If timer mode is convert delay, the master event then turns EV_MASTER_EXECUTE status. */
if (eMasterCurTimerMode == MB_TMODE_CONVERT_DELAY) {
xNeedPoll = xMBMasterPortEventPost( EV_MASTER_EXECUTE );
}
return xNeedPoll;
}
/* Get Modbus Master send RTU's buffer address pointer.*/
void vMBMasterGetRTUSndBuf( UCHAR ** pucFrame )
{
*pucFrame = ( UCHAR * ) ucMasterRTUSndBuf;
}
/* Get Modbus Master send PDU's buffer address pointer.*/
void vMBMasterGetPDUSndBuf( UCHAR ** pucFrame )
{
*pucFrame = ( UCHAR * ) &ucMasterRTUSndBuf[MB_SER_PDU_PDU_OFF];
}
/* Set Modbus Master send PDU's buffer length.*/
void vMBMasterSetPDUSndLength( USHORT SendPDULength )
{
usMasterSendPDULength = SendPDULength;
}
/* Get Modbus Master send PDU's buffer length.*/
USHORT usMBMasterGetPDUSndLength( void )
{
return usMasterSendPDULength;
}
/* Set Modbus Master current timer mode.*/
void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode )
{
eMasterCurTimerMode = eMBTimerMode;
}
/* The master request is broadcast? */
BOOL xMBMasterRequestIsBroadcast( void ){
return xFrameIsBroadcast;
}
#endif

158
components/net/freemodbus/modbus/tcp/mbtcp.c
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@ -1,158 +0,0 @@
/*
* 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: mbtcp.c,v 1.3 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 "mbconfig.h"
#include "mbtcp.h"
#include "mbframe.h"
#include "mbport.h"
#if MB_SLAVE_TCP_ENABLED > 0
/* ----------------------- Defines ------------------------------------------*/
/* ----------------------- MBAP Header --------------------------------------*/
/*
*
* <------------------------ MODBUS TCP/IP ADU(1) ------------------------->
* <----------- MODBUS PDU (1') ---------------->
* +-----------+---------------+------------------------------------------+
* | TID | PID | Length | UID |Code | Data |
* +-----------+---------------+------------------------------------------+
* | | | | |
* (2) (3) (4) (5) (6)
*
* (2) ... MB_TCP_TID = 0 (Transaction Identifier - 2 Byte)
* (3) ... MB_TCP_PID = 2 (Protocol Identifier - 2 Byte)
* (4) ... MB_TCP_LEN = 4 (Number of bytes - 2 Byte)
* (5) ... MB_TCP_UID = 6 (Unit Identifier - 1 Byte)
* (6) ... MB_TCP_FUNC = 7 (Modbus Function Code)
*
* (1) ... Modbus TCP/IP Application Data Unit
* (1') ... Modbus Protocol Data Unit
*/
#define MB_TCP_TID 0
#define MB_TCP_PID 2
#define MB_TCP_LEN 4
#define MB_TCP_UID 6
#define MB_TCP_FUNC 7
#define MB_TCP_PROTOCOL_ID 0 /* 0 = Modbus Protocol */
/* ----------------------- Start implementation -----------------------------*/
eMBErrorCode
eMBTCPDoInit( USHORT ucTCPPort )
{
eMBErrorCode eStatus = MB_ENOERR;
if( xMBTCPPortInit( ucTCPPort ) == FALSE )
{
eStatus = MB_EPORTERR;
}
return eStatus;
}
void
eMBTCPStart( void )
{
}
void
eMBTCPStop( void )
{
/* Make sure that no more clients are connected. */
vMBTCPPortDisable( );
}
eMBErrorCode
eMBTCPReceive( UCHAR * pucRcvAddress, UCHAR ** ppucFrame, USHORT * pusLength )
{
eMBErrorCode eStatus = MB_EIO;
UCHAR *pucMBTCPFrame;
USHORT usLength;
USHORT usPID;
if( xMBTCPPortGetRequest( &pucMBTCPFrame, &usLength ) != FALSE )
{
usPID = pucMBTCPFrame[MB_TCP_PID] << 8U;
usPID |= pucMBTCPFrame[MB_TCP_PID + 1];
if( usPID == MB_TCP_PROTOCOL_ID )
{
*ppucFrame = &pucMBTCPFrame[MB_TCP_FUNC];
*pusLength = usLength - MB_TCP_FUNC;
eStatus = MB_ENOERR;
/* Modbus TCP does not use any addresses. Fake the source address such
* that the processing part deals with this frame.
*/
*pucRcvAddress = MB_TCP_PSEUDO_ADDRESS;
}
}
else
{
eStatus = MB_EIO;
}
return eStatus;
}
eMBErrorCode
eMBTCPSend( UCHAR _unused, const UCHAR * pucFrame, USHORT usLength )
{
eMBErrorCode eStatus = MB_ENOERR;
UCHAR *pucMBTCPFrame = ( UCHAR * ) pucFrame - MB_TCP_FUNC;
USHORT usTCPLength = usLength + MB_TCP_FUNC;
/* The MBAP header is already initialized because the caller calls this
* function with the buffer returned by the previous call. Therefore we
* only have to update the length in the header. Note that the length
* header includes the size of the Modbus PDU and the UID Byte. Therefore
* the length is usLength plus one.
*/
pucMBTCPFrame[MB_TCP_LEN] = ( usLength + 1 ) >> 8U;
pucMBTCPFrame[MB_TCP_LEN + 1] = ( usLength + 1 ) & 0xFF;
if( xMBTCPPortSendResponse( pucMBTCPFrame, usTCPLength ) == FALSE )
{
eStatus = MB_EIO;
}
return eStatus;
}
#endif

53
components/net/freemodbus/modbus/tcp/mbtcp.h
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@ -1,53 +0,0 @@
/*
* 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: mbtcp.h,v 1.2 2006/12/07 22:10:34 wolti Exp $
*/
#ifndef _MB_TCP_H
#define _MB_TCP_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/* ----------------------- Defines ------------------------------------------*/
#define MB_TCP_PSEUDO_ADDRESS 255
/* ----------------------- Function prototypes ------------------------------*/
eMBErrorCode eMBTCPDoInit( USHORT ucTCPPort );
void eMBTCPStart( void );
void eMBTCPStop( void );
eMBErrorCode eMBTCPReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame,
USHORT * pusLength );
eMBErrorCode eMBTCPSend( UCHAR _unused, const UCHAR * pucFrame,
USHORT usLength );
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif

38
components/net/freemodbus/port/port.c
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@ -1,38 +0,0 @@
/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: port.c,v 1.60 2015/02/01 9:18:05 Armink $
*/
/* ----------------------- System includes --------------------------------*/
/* ----------------------- Modbus includes ----------------------------------*/
#include "port.h"
/* ----------------------- Variables ----------------------------------------*/
static rt_base_t level;
/* ----------------------- Start implementation -----------------------------*/
void EnterCriticalSection(void)
{
level = rt_hw_interrupt_disable();
}
void ExitCriticalSection(void)
{
rt_hw_interrupt_enable(level);
}

61
components/net/freemodbus/port/port.h
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@ -1,61 +0,0 @@
/*
* FreeModbus Libary: BARE Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: port.h ,v 1.60 2013/08/13 15:07:05 Armink add Master Functions $
*/
#ifndef _PORT_H
#define _PORT_H
#include "mbconfig.h"
#include <rthw.h>
#include <rtthread.h>
#include <assert.h>
#include <inttypes.h>
#define INLINE
#define PR_BEGIN_EXTERN_C extern "C" {
#define PR_END_EXTERN_C }
#define ENTER_CRITICAL_SECTION() EnterCriticalSection()
#define EXIT_CRITICAL_SECTION() ExitCriticalSection()
typedef uint8_t BOOL;
typedef unsigned char UCHAR;
typedef char CHAR;
typedef uint16_t USHORT;
typedef int16_t SHORT;
typedef uint32_t ULONG;
typedef int32_t LONG;
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
void EnterCriticalSection(void);
void ExitCriticalSection(void);
#endif

68
components/net/freemodbus/port/portevent.c
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@ -1,68 +0,0 @@
/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: portevent.c,v 1.60 2013/08/13 15:07:05 Armink $
*/
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
/* ----------------------- Variables ----------------------------------------*/
static struct rt_event xSlaveOsEvent;
/* ----------------------- Start implementation -----------------------------*/
BOOL
xMBPortEventInit( void )
{
rt_event_init(&xSlaveOsEvent,"slave event",RT_IPC_FLAG_PRIO);
return TRUE;
}
BOOL
xMBPortEventPost( eMBEventType eEvent )
{
rt_event_send(&xSlaveOsEvent, eEvent);
return TRUE;
}
BOOL
xMBPortEventGet( eMBEventType * eEvent )
{
rt_uint32_t recvedEvent;
/* waiting forever OS event */
rt_event_recv(&xSlaveOsEvent,
EV_READY | EV_FRAME_RECEIVED | EV_EXECUTE | EV_FRAME_SENT,
RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER,
&recvedEvent);
switch (recvedEvent)
{
case EV_READY:
*eEvent = EV_READY;
break;
case EV_FRAME_RECEIVED:
*eEvent = EV_FRAME_RECEIVED;
break;
case EV_EXECUTE:
*eEvent = EV_EXECUTE;
break;
case EV_FRAME_SENT:
*eEvent = EV_FRAME_SENT;
break;
}
return TRUE;
}

239
components/net/freemodbus/port/portevent_m.c
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@ -1,239 +0,0 @@
/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: portevent_m.c v 1.60 2013/08/13 15:07:05 Armink add Master Functions$
*/
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbport.h"
#include "port.h"
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
/* ----------------------- Defines ------------------------------------------*/
/* ----------------------- Variables ----------------------------------------*/
static struct rt_semaphore xMasterRunRes;
static struct rt_event xMasterOsEvent;
/* ----------------------- Start implementation -----------------------------*/
BOOL
xMBMasterPortEventInit( void )
{
rt_event_init(&xMasterOsEvent,"master event",RT_IPC_FLAG_PRIO);
return TRUE;
}
BOOL
xMBMasterPortEventPost( eMBMasterEventType eEvent )
{
rt_event_send(&xMasterOsEvent, eEvent);
return TRUE;
}
BOOL
xMBMasterPortEventGet( eMBMasterEventType * eEvent )
{
rt_uint32_t recvedEvent;
/* waiting forever OS event */
rt_event_recv(&xMasterOsEvent,
EV_MASTER_READY | EV_MASTER_FRAME_RECEIVED | EV_MASTER_EXECUTE |
EV_MASTER_FRAME_SENT | EV_MASTER_ERROR_PROCESS,
RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER,
&recvedEvent);
/* the enum type couldn't convert to int type */
switch (recvedEvent)
{
case EV_MASTER_READY:
*eEvent = EV_MASTER_READY;
break;
case EV_MASTER_FRAME_RECEIVED:
*eEvent = EV_MASTER_FRAME_RECEIVED;
break;
case EV_MASTER_EXECUTE:
*eEvent = EV_MASTER_EXECUTE;
break;
case EV_MASTER_FRAME_SENT:
*eEvent = EV_MASTER_FRAME_SENT;
break;
case EV_MASTER_ERROR_PROCESS:
*eEvent = EV_MASTER_ERROR_PROCESS;
break;
}
return TRUE;
}
/**
* This function is initialize the OS resource for modbus master.
* Note:The resource is define by OS.If you not use OS this function can be empty.
*
*/
void vMBMasterOsResInit( void )
{
rt_sem_init(&xMasterRunRes, "master res", 0x01 , RT_IPC_FLAG_PRIO);
}
/**
* This function is take Mobus Master running resource.
* Note:The resource is define by Operating System.If you not use OS this function can be just return TRUE.
*
* @param lTimeOut the waiting time.
*
* @return resource taked result
*/
BOOL xMBMasterRunResTake( LONG lTimeOut )
{
/*If waiting time is -1 .It will wait forever */
return rt_sem_take(&xMasterRunRes, lTimeOut) ? FALSE : TRUE ;
}
/**
* This function is release Mobus Master running resource.
* Note:The resource is define by Operating System.If you not use OS this function can be empty.
*
*/
void vMBMasterRunResRelease( void )
{
/* release resource */
rt_sem_release(&xMasterRunRes);
}
/**
* This is modbus master respond timeout error process callback function.
* @note There functions will block modbus master poll while execute OS waiting.
* So,for real-time of system.Do not execute too much waiting process.
*
* @param ucDestAddress destination salve address
* @param pucPDUData PDU buffer data
* @param ucPDULength PDU buffer length
*
*/
void vMBMasterErrorCBRespondTimeout(UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength) {
/**
* @note This code is use OS's event mechanism for modbus master protocol stack.
* If you don't use OS, you can change it.
*/
rt_event_send(&xMasterOsEvent, EV_MASTER_ERROR_RESPOND_TIMEOUT);
/* You can add your code under here. */
}
/**
* This is modbus master receive data error process callback function.
* @note There functions will block modbus master poll while execute OS waiting.
* So,for real-time of system.Do not execute too much waiting process.
*
* @param ucDestAddress destination salve address
* @param pucPDUData PDU buffer data
* @param ucPDULength PDU buffer length
*
*/
void vMBMasterErrorCBReceiveData(UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength) {
/**
* @note This code is use OS's event mechanism for modbus master protocol stack.
* If you don't use OS, you can change it.
*/
rt_event_send(&xMasterOsEvent, EV_MASTER_ERROR_RECEIVE_DATA);
/* You can add your code under here. */
}
/**
* This is modbus master execute function error process callback function.
* @note There functions will block modbus master poll while execute OS waiting.
* So,for real-time of system.Do not execute too much waiting process.
*
* @param ucDestAddress destination salve address
* @param pucPDUData PDU buffer data
* @param ucPDULength PDU buffer length
*
*/
void vMBMasterErrorCBExecuteFunction(UCHAR ucDestAddress, const UCHAR* pucPDUData,
USHORT ucPDULength) {
/**
* @note This code is use OS's event mechanism for modbus master protocol stack.
* If you don't use OS, you can change it.
*/
rt_event_send(&xMasterOsEvent, EV_MASTER_ERROR_EXECUTE_FUNCTION);
/* You can add your code under here. */
}
/**
* This is modbus master request process success callback function.
* @note There functions will block modbus master poll while execute OS waiting.
* So,for real-time of system.Do not execute too much waiting process.
*
*/
void vMBMasterCBRequestScuuess( void ) {
/**
* @note This code is use OS's event mechanism for modbus master protocol stack.
* If you don't use OS, you can change it.
*/
rt_event_send(&xMasterOsEvent, EV_MASTER_PROCESS_SUCESS);
/* You can add your code under here. */
}
/**
* This function is wait for modbus master request finish and return result.
* Waiting result include request process success, request respond timeout,
* receive data error and execute function error.You can use the above callback function.
* @note If you are use OS, you can use OS's event mechanism. Otherwise you have to run
* much user custom delay for waiting.
*
* @return request error code
*/
eMBMasterReqErrCode eMBMasterWaitRequestFinish( void ) {
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
rt_uint32_t recvedEvent;
/* waiting for OS event */
rt_event_recv(&xMasterOsEvent,
EV_MASTER_PROCESS_SUCESS | EV_MASTER_ERROR_RESPOND_TIMEOUT
| EV_MASTER_ERROR_RECEIVE_DATA
| EV_MASTER_ERROR_EXECUTE_FUNCTION,
RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER,
&recvedEvent);
switch (recvedEvent)
{
case EV_MASTER_PROCESS_SUCESS:
break;
case EV_MASTER_ERROR_RESPOND_TIMEOUT:
{
eErrStatus = MB_MRE_TIMEDOUT;
break;
}
case EV_MASTER_ERROR_RECEIVE_DATA:
{
eErrStatus = MB_MRE_REV_DATA;
break;
}
case EV_MASTER_ERROR_EXECUTE_FUNCTION:
{
eErrStatus = MB_MRE_EXE_FUN;
break;
}
}
return eErrStatus;
}
#endif

225
components/net/freemodbus/port/portserial.c
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@ -1,225 +0,0 @@
/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: portserial.c,v 1.60 2013/08/13 15:07:05 Armink $
*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
#include "rtdevice.h"
#include "board.h"
/* ----------------------- Static variables ---------------------------------*/
ALIGN(RT_ALIGN_SIZE)
/* software simulation serial transmit IRQ handler thread stack */
static rt_uint8_t serial_soft_trans_irq_stack[512];
/* software simulation serial transmit IRQ handler thread */
static struct rt_thread thread_serial_soft_trans_irq;
/* serial event */
static struct rt_event event_serial;
/* modbus slave serial device */
static rt_serial_t *serial;
/* ----------------------- Defines ------------------------------------------*/
/* serial transmit event */
#define EVENT_SERIAL_TRANS_START (1<<0)
/* ----------------------- static functions ---------------------------------*/
static void prvvUARTTxReadyISR(void);
static void prvvUARTRxISR(void);
static rt_err_t serial_rx_ind(rt_device_t dev, rt_size_t size);
static void serial_soft_trans_irq(void* parameter);
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBPortSerialInit(UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits,
eMBParity eParity)
{
rt_device_t dev = RT_NULL;
char uart_name[20];
/**
* set 485 mode receive and transmit control IO
* @note MODBUS_SLAVE_RT_CONTROL_PIN_INDEX need be defined by user
*/
#if defined(RT_MODBUS_SLAVE_USE_CONTROL_PIN)
rt_pin_mode(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_MODE_OUTPUT);
#endif
/* set serial name */
rt_snprintf(uart_name,sizeof(uart_name), "uart%d", ucPORT);
dev = rt_device_find(uart_name);
if(dev == RT_NULL)
{
/* can not find uart */
return FALSE;
}
else
{
serial = (struct rt_serial_device*)dev;
}
/* set serial configure parameter */
serial->config.baud_rate = ulBaudRate;
serial->config.stop_bits = STOP_BITS_1;
switch(eParity){
case MB_PAR_NONE: {
serial->config.data_bits = DATA_BITS_8;
serial->config.parity = PARITY_NONE;
break;
}
case MB_PAR_ODD: {
serial->config.data_bits = DATA_BITS_9;
serial->config.parity = PARITY_ODD;
break;
}
case MB_PAR_EVEN: {
serial->config.data_bits = DATA_BITS_9;
serial->config.parity = PARITY_EVEN;
break;
}
}
/* set serial configure */
serial->ops->configure(serial, &(serial->config));
/* open serial device */
if (!rt_device_open(&serial->parent, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX)) {
rt_device_set_rx_indicate(&serial->parent, serial_rx_ind);
} else {
return FALSE;
}
/* software initialize */
rt_event_init(&event_serial, "slave event", RT_IPC_FLAG_PRIO);
rt_thread_init(&thread_serial_soft_trans_irq,
"slave trans",
serial_soft_trans_irq,
RT_NULL,
serial_soft_trans_irq_stack,
sizeof(serial_soft_trans_irq_stack),
10, 5);
rt_thread_startup(&thread_serial_soft_trans_irq);
return TRUE;
}
void vMBPortSerialEnable(BOOL xRxEnable, BOOL xTxEnable)
{
rt_uint32_t recved_event;
if (xRxEnable)
{
/* enable RX interrupt */
serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_RX);
/* switch 485 to receive mode */
#if defined(RT_MODBUS_SLAVE_USE_CONTROL_PIN)
rt_pin_write(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_LOW);
#endif
}
else
{
/* switch 485 to transmit mode */
#if defined(RT_MODBUS_SLAVE_USE_CONTROL_PIN)
rt_pin_write(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_HIGH);
#endif
/* disable RX interrupt */
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void *)RT_DEVICE_FLAG_INT_RX);
}
if (xTxEnable)
{
/* start serial transmit */
rt_event_send(&event_serial, EVENT_SERIAL_TRANS_START);
}
else
{
/* stop serial transmit */
rt_event_recv(&event_serial, EVENT_SERIAL_TRANS_START,
RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, 0,
&recved_event);
}
}
void vMBPortClose(void)
{
serial->parent.close(&(serial->parent));
}
BOOL xMBPortSerialPutByte(CHAR ucByte)
{
serial->parent.write(&(serial->parent), 0, &ucByte, 1);
return TRUE;
}
BOOL xMBPortSerialGetByte(CHAR * pucByte)
{
serial->parent.read(&(serial->parent), 0, pucByte, 1);
return TRUE;
}
/*
* Create an interrupt handler for the transmit buffer empty interrupt
* (or an equivalent) for your target processor. This function should then
* call pxMBFrameCBTransmitterEmpty( ) which tells the protocol stack that
* a new character can be sent. The protocol stack will then call
* xMBPortSerialPutByte( ) to send the character.
*/
void prvvUARTTxReadyISR(void)
{
pxMBFrameCBTransmitterEmpty();
}
/*
* Create an interrupt handler for the receive interrupt for your target
* processor. This function should then call pxMBFrameCBByteReceived( ). The
* protocol stack will then call xMBPortSerialGetByte( ) to retrieve the
* character.
*/
void prvvUARTRxISR(void)
{
pxMBFrameCBByteReceived();
}
/**
* Software simulation serial transmit IRQ handler.
*
* @param parameter parameter
*/
static void serial_soft_trans_irq(void* parameter) {
rt_uint32_t recved_event;
while (1)
{
/* waiting for serial transmit start */
rt_event_recv(&event_serial, EVENT_SERIAL_TRANS_START, RT_EVENT_FLAG_OR,
RT_WAITING_FOREVER, &recved_event);
/* execute modbus callback */
prvvUARTTxReadyISR();
}
}
/**
* This function is serial receive callback function
*
* @param dev the device of serial
* @param size the data size that receive
*
* @return return RT_EOK
*/
static rt_err_t serial_rx_ind(rt_device_t dev, rt_size_t size) {
prvvUARTRxISR();
return RT_EOK;
}

229
components/net/freemodbus/port/portserial_m.c
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@ -1,229 +0,0 @@
/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: portserial_m.c,v 1.60 2013/08/13 15:07:05 Armink add Master Functions $
*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
#include "rtdevice.h"
#include "board.h"
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
/* ----------------------- Static variables ---------------------------------*/
ALIGN(RT_ALIGN_SIZE)
/* software simulation serial transmit IRQ handler thread stack */
static rt_uint8_t serial_soft_trans_irq_stack[512];
/* software simulation serial transmit IRQ handler thread */
static struct rt_thread thread_serial_soft_trans_irq;
/* serial event */
static struct rt_event event_serial;
/* modbus master serial device */
static rt_serial_t *serial;
/* ----------------------- Defines ------------------------------------------*/
/* serial transmit event */
#define EVENT_SERIAL_TRANS_START (1<<0)
/* ----------------------- static functions ---------------------------------*/
static void prvvUARTTxReadyISR(void);
static void prvvUARTRxISR(void);
static rt_err_t serial_rx_ind(rt_device_t dev, rt_size_t size);
static void serial_soft_trans_irq(void* parameter);
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBMasterPortSerialInit(UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits,
eMBParity eParity)
{
rt_device_t dev = RT_NULL;
char uart_name[20];
/**
* set 485 mode receive and transmit control IO
* @note MODBUS_MASTER_RT_CONTROL_PIN_INDEX need be defined by user
*/
#if defined(RT_MODBUS_MASTER_USE_CONTROL_PIN)
rt_pin_mode(MODBUS_MASTER_RT_CONTROL_PIN_INDEX, PIN_MODE_OUTPUT);
#endif
/* set serial name */
rt_snprintf(uart_name,sizeof(uart_name), "uart%d", ucPORT);
dev = rt_device_find(uart_name);
if(dev == RT_NULL)
{
/* can not find uart */
return FALSE;
}
else
{
serial = (struct rt_serial_device*)dev;
}
/* set serial configure parameter */
serial->config.baud_rate = ulBaudRate;
serial->config.stop_bits = STOP_BITS_1;
switch(eParity){
case MB_PAR_NONE: {
serial->config.data_bits = DATA_BITS_8;
serial->config.parity = PARITY_NONE;
break;
}
case MB_PAR_ODD: {
serial->config.data_bits = DATA_BITS_9;
serial->config.parity = PARITY_ODD;
break;
}
case MB_PAR_EVEN: {
serial->config.data_bits = DATA_BITS_9;
serial->config.parity = PARITY_EVEN;
break;
}
}
/* set serial configure */
serial->ops->configure(serial, &(serial->config));
/* open serial device */
if (!rt_device_open(&serial->parent, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX)) {
rt_device_set_rx_indicate(&serial->parent, serial_rx_ind);
} else {
return FALSE;
}
/* software initialize */
rt_event_init(&event_serial, "master event", RT_IPC_FLAG_PRIO);
rt_thread_init(&thread_serial_soft_trans_irq,
"master trans",
serial_soft_trans_irq,
RT_NULL,
serial_soft_trans_irq_stack,
sizeof(serial_soft_trans_irq_stack),
10, 5);
rt_thread_startup(&thread_serial_soft_trans_irq);
return TRUE;
}
void vMBMasterPortSerialEnable(BOOL xRxEnable, BOOL xTxEnable)
{
rt_uint32_t recved_event;
if (xRxEnable)
{
/* enable RX interrupt */
serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_RX);
/* switch 485 to receive mode */
#if defined(RT_MODBUS_MASTER_USE_CONTROL_PIN)
rt_pin_write(MODBUS_MASTER_RT_CONTROL_PIN_INDEX, PIN_LOW);
#endif
}
else
{
/* switch 485 to transmit mode */
#if defined(RT_MODBUS_MASTER_USE_CONTROL_PIN)
rt_pin_write(MODBUS_MASTER_RT_CONTROL_PIN_INDEX, PIN_HIGH);
#endif
/* disable RX interrupt */
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void *)RT_DEVICE_FLAG_INT_RX);
}
if (xTxEnable)
{
/* start serial transmit */
rt_event_send(&event_serial, EVENT_SERIAL_TRANS_START);
}
else
{
/* stop serial transmit */
rt_event_recv(&event_serial, EVENT_SERIAL_TRANS_START,
RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, 0,
&recved_event);
}
}
void vMBMasterPortClose(void)
{
serial->parent.close(&(serial->parent));
}
BOOL xMBMasterPortSerialPutByte(CHAR ucByte)
{
serial->parent.write(&(serial->parent), 0, &ucByte, 1);
return TRUE;
}
BOOL xMBMasterPortSerialGetByte(CHAR * pucByte)
{
serial->parent.read(&(serial->parent), 0, pucByte, 1);
return TRUE;
}
/*
* Create an interrupt handler for the transmit buffer empty interrupt
* (or an equivalent) for your target processor. This function should then
* call pxMBFrameCBTransmitterEmpty( ) which tells the protocol stack that
* a new character can be sent. The protocol stack will then call
* xMBPortSerialPutByte( ) to send the character.
*/
void prvvUARTTxReadyISR(void)
{
pxMBMasterFrameCBTransmitterEmpty();
}
/*
* Create an interrupt handler for the receive interrupt for your target
* processor. This function should then call pxMBFrameCBByteReceived( ). The
* protocol stack will then call xMBPortSerialGetByte( ) to retrieve the
* character.
*/
void prvvUARTRxISR(void)
{
pxMBMasterFrameCBByteReceived();
}
/**
* Software simulation serial transmit IRQ handler.
*
* @param parameter parameter
*/
static void serial_soft_trans_irq(void* parameter) {
rt_uint32_t recved_event;
while (1)
{
/* waiting for serial transmit start */
rt_event_recv(&event_serial, EVENT_SERIAL_TRANS_START, RT_EVENT_FLAG_OR,
RT_WAITING_FOREVER, &recved_event);
/* execute modbus callback */
prvvUARTTxReadyISR();
}
}
/**
* This function is serial receive callback function
*
* @param dev the device of serial
* @param size the data size that receive
*
* @return return RT_EOK
*/
static rt_err_t serial_rx_ind(rt_device_t dev, rt_size_t size) {
prvvUARTRxISR();
return RT_EOK;
}
#endif

63
components/net/freemodbus/port/porttimer.c
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/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: porttimer.c,v 1.60 2013/08/13 15:07:05 Armink $
*/
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"
/* ----------------------- static functions ---------------------------------*/
static struct rt_timer timer;
static void prvvTIMERExpiredISR(void);
static void timer_timeout_ind(void* parameter);
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBPortTimersInit(USHORT usTim1Timerout50us)
{
rt_timer_init(&timer, "slave timer",
timer_timeout_ind, /* bind timeout callback function */
RT_NULL,
(50 * usTim1Timerout50us) / (1000 * 1000 / RT_TICK_PER_SECOND) + 1,
RT_TIMER_FLAG_ONE_SHOT); /* one shot */
return TRUE;
}
void vMBPortTimersEnable()
{
rt_timer_start(&timer);
}
void vMBPortTimersDisable()
{
rt_timer_stop(&timer);
}
void prvvTIMERExpiredISR(void)
{
(void) pxMBPortCBTimerExpired();
}
static void timer_timeout_ind(void* parameter)
{
prvvTIMERExpiredISR();
}

107
components/net/freemodbus/port/porttimer_m.c
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/*
* FreeModbus Libary: RT-Thread Port
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: porttimer_m.c,v 1.60 2013/08/13 15:07:05 Armink add Master Functions$
*/
/* ----------------------- Platform includes --------------------------------*/
#include "port.h"
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbport.h"
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
/* ----------------------- Variables ----------------------------------------*/
static USHORT usT35TimeOut50us;
static struct rt_timer timer;
static void prvvTIMERExpiredISR(void);
static void timer_timeout_ind(void* parameter);
/* ----------------------- static functions ---------------------------------*/
static void prvvTIMERExpiredISR(void);
/* ----------------------- Start implementation -----------------------------*/
BOOL xMBMasterPortTimersInit(USHORT usTimeOut50us)
{
/* backup T35 ticks */
usT35TimeOut50us = usTimeOut50us;
rt_timer_init(&timer, "master timer",
timer_timeout_ind, /* bind timeout callback function */
RT_NULL,
(50 * usT35TimeOut50us) / (1000 * 1000 / RT_TICK_PER_SECOND) + 1,
RT_TIMER_FLAG_ONE_SHOT); /* one shot */
return TRUE;
}
void vMBMasterPortTimersT35Enable()
{
rt_tick_t timer_tick = (50 * usT35TimeOut50us)
/ (1000 * 1000 / RT_TICK_PER_SECOND);
/* Set current timer mode, don't change it.*/
vMBMasterSetCurTimerMode(MB_TMODE_T35);
rt_timer_control(&timer, RT_TIMER_CTRL_SET_TIME, &timer_tick);
rt_timer_start(&timer);
}
void vMBMasterPortTimersConvertDelayEnable()
{
rt_tick_t timer_tick = MB_MASTER_DELAY_MS_CONVERT * RT_TICK_PER_SECOND / 1000;
/* Set current timer mode, don't change it.*/
vMBMasterSetCurTimerMode(MB_TMODE_CONVERT_DELAY);
rt_timer_control(&timer, RT_TIMER_CTRL_SET_TIME, &timer_tick);
rt_timer_start(&timer);
}
void vMBMasterPortTimersRespondTimeoutEnable()
{
rt_tick_t timer_tick = MB_MASTER_TIMEOUT_MS_RESPOND * RT_TICK_PER_SECOND / 1000;
/* Set current timer mode, don't change it.*/
vMBMasterSetCurTimerMode(MB_TMODE_RESPOND_TIMEOUT);
rt_timer_control(&timer, RT_TIMER_CTRL_SET_TIME, &timer_tick);
rt_timer_start(&timer);
}
void vMBMasterPortTimersDisable()
{
rt_timer_stop(&timer);
}
void prvvTIMERExpiredISR(void)
{
(void) pxMBMasterPortCBTimerExpired();
}
static void timer_timeout_ind(void* parameter)
{
prvvTIMERExpiredISR();
}
#endif

286
components/net/freemodbus/port/user_mb_app.c
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@ -1,286 +0,0 @@
/*
* FreeModbus Libary: user callback functions and buffer define in slave mode
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: user_mb_app.c,v 1.60 2013/11/23 11:49:05 Armink $
*/
#include "user_mb_app.h"
/*------------------------Slave mode use these variables----------------------*/
//Slave mode:DiscreteInputs variables
USHORT usSDiscInStart = S_DISCRETE_INPUT_START;
#if S_DISCRETE_INPUT_NDISCRETES%8
UCHAR ucSDiscInBuf[S_DISCRETE_INPUT_NDISCRETES/8+1];
#else
UCHAR ucSDiscInBuf[S_DISCRETE_INPUT_NDISCRETES/8] ;
#endif
//Slave mode:Coils variables
USHORT usSCoilStart = S_COIL_START;
#if S_COIL_NCOILS%8
UCHAR ucSCoilBuf[S_COIL_NCOILS/8+1] ;
#else
UCHAR ucSCoilBuf[S_COIL_NCOILS/8] ;
#endif
//Slave mode:InputRegister variables
USHORT usSRegInStart = S_REG_INPUT_START;
USHORT usSRegInBuf[S_REG_INPUT_NREGS] ;
//Slave mode:HoldingRegister variables
USHORT usSRegHoldStart = S_REG_HOLDING_START;
USHORT usSRegHoldBuf[S_REG_HOLDING_NREGS] ;
/**
* Modbus slave input register callback function.
*
* @param pucRegBuffer input register buffer
* @param usAddress input register address
* @param usNRegs input register number
*
* @return result
*/
eMBErrorCode eMBRegInputCB(UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex;
USHORT * pusRegInputBuf;
USHORT REG_INPUT_START;
USHORT REG_INPUT_NREGS;
USHORT usRegInStart;
pusRegInputBuf = usSRegInBuf;
REG_INPUT_START = S_REG_INPUT_START;
REG_INPUT_NREGS = S_REG_INPUT_NREGS;
usRegInStart = usSRegInStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= REG_INPUT_START)
&& (usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS))
{
iRegIndex = usAddress - usRegInStart;
while (usNRegs > 0)
{
*pucRegBuffer++ = (UCHAR) (pusRegInputBuf[iRegIndex] >> 8);
*pucRegBuffer++ = (UCHAR) (pusRegInputBuf[iRegIndex] & 0xFF);
iRegIndex++;
usNRegs--;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus slave holding register callback function.
*
* @param pucRegBuffer holding register buffer
* @param usAddress holding register address
* @param usNRegs holding register number
* @param eMode read or write
*
* @return result
*/
eMBErrorCode eMBRegHoldingCB(UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs, eMBRegisterMode eMode)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex;
USHORT * pusRegHoldingBuf;
USHORT REG_HOLDING_START;
USHORT REG_HOLDING_NREGS;
USHORT usRegHoldStart;
pusRegHoldingBuf = usSRegHoldBuf;
REG_HOLDING_START = S_REG_HOLDING_START;
REG_HOLDING_NREGS = S_REG_HOLDING_NREGS;
usRegHoldStart = usSRegHoldStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= REG_HOLDING_START)
&& (usAddress + usNRegs <= REG_HOLDING_START + REG_HOLDING_NREGS))
{
iRegIndex = usAddress - usRegHoldStart;
switch (eMode)
{
/* read current register values from the protocol stack. */
case MB_REG_READ:
while (usNRegs > 0)
{
*pucRegBuffer++ = (UCHAR) (pusRegHoldingBuf[iRegIndex] >> 8);
*pucRegBuffer++ = (UCHAR) (pusRegHoldingBuf[iRegIndex] & 0xFF);
iRegIndex++;
usNRegs--;
}
break;
/* write current register values with new values from the protocol stack. */
case MB_REG_WRITE:
while (usNRegs > 0)
{
pusRegHoldingBuf[iRegIndex] = *pucRegBuffer++ << 8;
pusRegHoldingBuf[iRegIndex] |= *pucRegBuffer++;
iRegIndex++;
usNRegs--;
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus slave coils callback function.
*
* @param pucRegBuffer coils buffer
* @param usAddress coils address
* @param usNCoils coils number
* @param eMode read or write
*
* @return result
*/
eMBErrorCode eMBRegCoilsCB(UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNCoils, eMBRegisterMode eMode)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex , iRegBitIndex , iNReg;
UCHAR * pucCoilBuf;
USHORT COIL_START;
USHORT COIL_NCOILS;
USHORT usCoilStart;
iNReg = usNCoils / 8 + 1;
pucCoilBuf = ucSCoilBuf;
COIL_START = S_COIL_START;
COIL_NCOILS = S_COIL_NCOILS;
usCoilStart = usSCoilStart;
/* it already plus one in modbus function method. */
usAddress--;
if( ( usAddress >= COIL_START ) &&
( usAddress + usNCoils <= COIL_START + COIL_NCOILS ) )
{
iRegIndex = (USHORT) (usAddress - usCoilStart) / 8;
iRegBitIndex = (USHORT) (usAddress - usCoilStart) % 8;
switch ( eMode )
{
/* read current coil values from the protocol stack. */
case MB_REG_READ:
while (iNReg > 0)
{
*pucRegBuffer++ = xMBUtilGetBits(&pucCoilBuf[iRegIndex++],
iRegBitIndex, 8);
iNReg--;
}
pucRegBuffer--;
/* last coils */
usNCoils = usNCoils % 8;
/* filling zero to high bit */
*pucRegBuffer = *pucRegBuffer << (8 - usNCoils);
*pucRegBuffer = *pucRegBuffer >> (8 - usNCoils);
break;
/* write current coil values with new values from the protocol stack. */
case MB_REG_WRITE:
while (iNReg > 1)
{
xMBUtilSetBits(&pucCoilBuf[iRegIndex++], iRegBitIndex, 8,
*pucRegBuffer++);
iNReg--;
}
/* last coils */
usNCoils = usNCoils % 8;
/* xMBUtilSetBits has bug when ucNBits is zero */
if (usNCoils != 0)
{
xMBUtilSetBits(&pucCoilBuf[iRegIndex++], iRegBitIndex, usNCoils,
*pucRegBuffer++);
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus slave discrete callback function.
*
* @param pucRegBuffer discrete buffer
* @param usAddress discrete address
* @param usNDiscrete discrete number
*
* @return result
*/
eMBErrorCode eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex , iRegBitIndex , iNReg;
UCHAR * pucDiscreteInputBuf;
USHORT DISCRETE_INPUT_START;
USHORT DISCRETE_INPUT_NDISCRETES;
USHORT usDiscreteInputStart;
iNReg = usNDiscrete / 8 + 1;
pucDiscreteInputBuf = ucSDiscInBuf;
DISCRETE_INPUT_START = S_DISCRETE_INPUT_START;
DISCRETE_INPUT_NDISCRETES = S_DISCRETE_INPUT_NDISCRETES;
usDiscreteInputStart = usSDiscInStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= DISCRETE_INPUT_START)
&& (usAddress + usNDiscrete <= DISCRETE_INPUT_START + DISCRETE_INPUT_NDISCRETES))
{
iRegIndex = (USHORT) (usAddress - usDiscreteInputStart) / 8;
iRegBitIndex = (USHORT) (usAddress - usDiscreteInputStart) % 8;
while (iNReg > 0)
{
*pucRegBuffer++ = xMBUtilGetBits(&pucDiscreteInputBuf[iRegIndex++],
iRegBitIndex, 8);
iNReg--;
}
pucRegBuffer--;
/* last discrete */
usNDiscrete = usNDiscrete % 8;
/* filling zero to high bit */
*pucRegBuffer = *pucRegBuffer << (8 - usNDiscrete);
*pucRegBuffer = *pucRegBuffer >> (8 - usNDiscrete);
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}

46
components/net/freemodbus/port/user_mb_app.h
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@ -1,46 +0,0 @@
#ifndef USER_APP
#define USER_APP
/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mb_m.h"
#include "mbconfig.h"
#include "mbframe.h"
#include "mbutils.h"
/* -----------------------Slave Defines -------------------------------------*/
#define S_DISCRETE_INPUT_START 0
#define S_DISCRETE_INPUT_NDISCRETES 16
#define S_COIL_START 0
#define S_COIL_NCOILS 64
#define S_REG_INPUT_START 0
#define S_REG_INPUT_NREGS 100
#define S_REG_HOLDING_START 0
#define S_REG_HOLDING_NREGS 100
/* salve mode: holding register's all address */
#define S_HD_RESERVE 0
/* salve mode: input register's all address */
#define S_IN_RESERVE 0
/* salve mode: coil's all address */
#define S_CO_RESERVE 0
/* salve mode: discrete's all address */
#define S_DI_RESERVE 0
/* -----------------------Master Defines -------------------------------------*/
#define M_DISCRETE_INPUT_START 0
#define M_DISCRETE_INPUT_NDISCRETES 16
#define M_COIL_START 0
#define M_COIL_NCOILS 64
#define M_REG_INPUT_START 0
#define M_REG_INPUT_NREGS 100
#define M_REG_HOLDING_START 0
#define M_REG_HOLDING_NREGS 100
/* master mode: holding register's all address */
#define M_HD_RESERVE 0
/* master mode: input register's all address */
#define M_IN_RESERVE 0
/* master mode: coil's all address */
#define M_CO_RESERVE 0
/* master mode: discrete's all address */
#define M_DI_RESERVE 0
#endif

294
components/net/freemodbus/port/user_mb_app_m.c
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@ -1,294 +0,0 @@
/*
* FreeModbus Libary: user callback functions and buffer define in master mode
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* File: $Id: user_mb_app_m.c,v 1.60 2013/11/23 11:49:05 Armink $
*/
#include "user_mb_app.h"
/*-----------------------Master mode use these variables----------------------*/
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
//Master mode:DiscreteInputs variables
USHORT usMDiscInStart = M_DISCRETE_INPUT_START;
#if M_DISCRETE_INPUT_NDISCRETES%8
UCHAR ucMDiscInBuf[MB_MASTER_TOTAL_SLAVE_NUM][M_DISCRETE_INPUT_NDISCRETES/8+1];
#else
UCHAR ucMDiscInBuf[MB_MASTER_TOTAL_SLAVE_NUM][M_DISCRETE_INPUT_NDISCRETES/8];
#endif
//Master mode:Coils variables
USHORT usMCoilStart = M_COIL_START;
#if M_COIL_NCOILS%8
UCHAR ucMCoilBuf[MB_MASTER_TOTAL_SLAVE_NUM][M_COIL_NCOILS/8+1];
#else
UCHAR ucMCoilBuf[MB_MASTER_TOTAL_SLAVE_NUM][M_COIL_NCOILS/8];
#endif
//Master mode:InputRegister variables
USHORT usMRegInStart = M_REG_INPUT_START;
USHORT usMRegInBuf[MB_MASTER_TOTAL_SLAVE_NUM][M_REG_INPUT_NREGS];
//Master mode:HoldingRegister variables
USHORT usMRegHoldStart = M_REG_HOLDING_START;
USHORT usMRegHoldBuf[MB_MASTER_TOTAL_SLAVE_NUM][M_REG_HOLDING_NREGS];
/**
* Modbus master input register callback function.
*
* @param pucRegBuffer input register buffer
* @param usAddress input register address
* @param usNRegs input register number
*
* @return result
*/
eMBErrorCode eMBMasterRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex;
USHORT * pusRegInputBuf;
USHORT REG_INPUT_START;
USHORT REG_INPUT_NREGS;
USHORT usRegInStart;
pusRegInputBuf = usMRegInBuf[ucMBMasterGetDestAddress() - 1];
REG_INPUT_START = M_REG_INPUT_START;
REG_INPUT_NREGS = M_REG_INPUT_NREGS;
usRegInStart = usMRegInStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= REG_INPUT_START)
&& (usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS))
{
iRegIndex = usAddress - usRegInStart;
while (usNRegs > 0)
{
pusRegInputBuf[iRegIndex] = *pucRegBuffer++ << 8;
pusRegInputBuf[iRegIndex] |= *pucRegBuffer++;
iRegIndex++;
usNRegs--;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus master holding register callback function.
*
* @param pucRegBuffer holding register buffer
* @param usAddress holding register address
* @param usNRegs holding register number
* @param eMode read or write
*
* @return result
*/
eMBErrorCode eMBMasterRegHoldingCB(UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNRegs, eMBRegisterMode eMode)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex;
USHORT * pusRegHoldingBuf;
USHORT REG_HOLDING_START;
USHORT REG_HOLDING_NREGS;
USHORT usRegHoldStart;
pusRegHoldingBuf = usMRegHoldBuf[ucMBMasterGetDestAddress() - 1];
REG_HOLDING_START = M_REG_HOLDING_START;
REG_HOLDING_NREGS = M_REG_HOLDING_NREGS;
usRegHoldStart = usMRegHoldStart;
/* if mode is read, the master will write the received date to buffer. */
eMode = MB_REG_WRITE;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= REG_HOLDING_START)
&& (usAddress + usNRegs <= REG_HOLDING_START + REG_HOLDING_NREGS))
{
iRegIndex = usAddress - usRegHoldStart;
switch (eMode)
{
/* read current register values from the protocol stack. */
case MB_REG_READ:
while (usNRegs > 0)
{
*pucRegBuffer++ = (UCHAR) (pusRegHoldingBuf[iRegIndex] >> 8);
*pucRegBuffer++ = (UCHAR) (pusRegHoldingBuf[iRegIndex] & 0xFF);
iRegIndex++;
usNRegs--;
}
break;
/* write current register values with new values from the protocol stack. */
case MB_REG_WRITE:
while (usNRegs > 0)
{
pusRegHoldingBuf[iRegIndex] = *pucRegBuffer++ << 8;
pusRegHoldingBuf[iRegIndex] |= *pucRegBuffer++;
iRegIndex++;
usNRegs--;
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus master coils callback function.
*
* @param pucRegBuffer coils buffer
* @param usAddress coils address
* @param usNCoils coils number
* @param eMode read or write
*
* @return result
*/
eMBErrorCode eMBMasterRegCoilsCB(UCHAR * pucRegBuffer, USHORT usAddress,
USHORT usNCoils, eMBRegisterMode eMode)
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex , iRegBitIndex , iNReg;
UCHAR * pucCoilBuf;
USHORT COIL_START;
USHORT COIL_NCOILS;
USHORT usCoilStart;
iNReg = usNCoils / 8 + 1;
pucCoilBuf = ucMCoilBuf[ucMBMasterGetDestAddress() - 1];
COIL_START = M_COIL_START;
COIL_NCOILS = M_COIL_NCOILS;
usCoilStart = usMCoilStart;
/* if mode is read,the master will write the received date to buffer. */
eMode = MB_REG_WRITE;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= COIL_START)
&& (usAddress + usNCoils <= COIL_START + COIL_NCOILS))
{
iRegIndex = (USHORT) (usAddress - usCoilStart) / 8;
iRegBitIndex = (USHORT) (usAddress - usCoilStart) % 8;
switch (eMode)
{
/* read current coil values from the protocol stack. */
case MB_REG_READ:
while (iNReg > 0)
{
*pucRegBuffer++ = xMBUtilGetBits(&pucCoilBuf[iRegIndex++],
iRegBitIndex, 8);
iNReg--;
}
pucRegBuffer--;
/* last coils */
usNCoils = usNCoils % 8;
/* filling zero to high bit */
*pucRegBuffer = *pucRegBuffer << (8 - usNCoils);
*pucRegBuffer = *pucRegBuffer >> (8 - usNCoils);
break;
/* write current coil values with new values from the protocol stack. */
case MB_REG_WRITE:
while (iNReg > 1)
{
xMBUtilSetBits(&pucCoilBuf[iRegIndex++], iRegBitIndex, 8,
*pucRegBuffer++);
iNReg--;
}
/* last coils */
usNCoils = usNCoils % 8;
/* xMBUtilSetBits has bug when ucNBits is zero */
if (usNCoils != 0)
{
xMBUtilSetBits(&pucCoilBuf[iRegIndex++], iRegBitIndex, usNCoils,
*pucRegBuffer++);
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* Modbus master discrete callback function.
*
* @param pucRegBuffer discrete buffer
* @param usAddress discrete address
* @param usNDiscrete discrete number
*
* @return result
*/
eMBErrorCode eMBMasterRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
{
eMBErrorCode eStatus = MB_ENOERR;
USHORT iRegIndex , iRegBitIndex , iNReg;
UCHAR * pucDiscreteInputBuf;
USHORT DISCRETE_INPUT_START;
USHORT DISCRETE_INPUT_NDISCRETES;
USHORT usDiscreteInputStart;
iNReg = usNDiscrete / 8 + 1;
pucDiscreteInputBuf = ucMDiscInBuf[ucMBMasterGetDestAddress() - 1];
DISCRETE_INPUT_START = M_DISCRETE_INPUT_START;
DISCRETE_INPUT_NDISCRETES = M_DISCRETE_INPUT_NDISCRETES;
usDiscreteInputStart = usMDiscInStart;
/* it already plus one in modbus function method. */
usAddress--;
if ((usAddress >= DISCRETE_INPUT_START)
&& (usAddress + usNDiscrete <= DISCRETE_INPUT_START + DISCRETE_INPUT_NDISCRETES))
{
iRegIndex = (USHORT) (usAddress - usDiscreteInputStart) / 8;
iRegBitIndex = (USHORT) (usAddress - usDiscreteInputStart) % 8;
/* write current discrete values with new values from the protocol stack. */
while (iNReg > 1)
{
xMBUtilSetBits(&pucDiscreteInputBuf[iRegIndex++], iRegBitIndex, 8,
*pucRegBuffer++);
iNReg--;
}
/* last discrete */
usNDiscrete = usNDiscrete % 8;
/* xMBUtilSetBits has bug when ucNBits is zero */
if (usNDiscrete != 0)
{
xMBUtilSetBits(&pucDiscreteInputBuf[iRegIndex++], iRegBitIndex,
usNDiscrete, *pucRegBuffer++);
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
#endif