Receive Raw Funktion implementiert. Qt-Testprojekt im Ordner src.

src/modbus.c

@@ -325,6 +325,103 @@ static int compute_data_length_after_meta(modbus_t *ctx, uint8_t *msg,
 }
 
 
+int modbus_receive_raw_msg(modbus_t *ctx, uint8_t *msg, int length_to_read)
+{
+    int rc;
+    fd_set rset;
+    struct timeval tv;
+    struct timeval *p_tv;
+    int msg_length = 0;
+
+    if (ctx == NULL) {
+        errno = EINVAL;
+        return -1;
+    }
+    
+    if(msg == NULL || length_to_read <= 0) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    /* Add a file descriptor to the set */
+    FD_ZERO(&rset);
+    FD_SET(ctx->s, &rset);
+
+    tv.tv_sec = ctx->response_timeout.tv_sec;
+    tv.tv_usec = ctx->response_timeout.tv_usec;
+    p_tv = &tv;
+
+    while (length_to_read > 0) {
+        rc = ctx->backend->select(ctx, &rset, p_tv, length_to_read);
+        if (rc == -1) {
+            _error_print(ctx, "select");
+            if (ctx->error_recovery & MODBUS_ERROR_RECOVERY_LINK) {
+                int saved_errno = errno;
+
+                if (errno == ETIMEDOUT) {
+                    _sleep_response_timeout(ctx);
+                    modbus_flush(ctx);
+                } else if (errno == EBADF) {
+                    modbus_close(ctx);
+                    modbus_connect(ctx);
+                }
+                errno = saved_errno;
+            }
+            return -1;
+        }
+
+        rc = ctx->backend->recv(ctx, msg + msg_length, length_to_read);
+        if (rc == 0) {
+            errno = ECONNRESET;
+            rc = -1;
+        }
+
+        if (rc == -1) {
+            _error_print(ctx, "read");
+            if ((ctx->error_recovery & MODBUS_ERROR_RECOVERY_LINK) &&
+                (errno == ECONNRESET || errno == ECONNREFUSED ||
+                 errno == EBADF)) {
+                int saved_errno = errno;
+                modbus_close(ctx);
+                modbus_connect(ctx);
+                /* Could be removed by previous calls */
+                errno = saved_errno;
+            }
+            return -1;
+        }
+
+        /* Display the hex code of each character received */
+        if (ctx->debug) {
+            int i;
+            for (i=0; i < rc; i++)
+                printf("<%.2X>", msg[msg_length + i]);
+            fflush(stdout);
+        }
+
+        /* Sums bytes received */
+        msg_length += rc;
+        /* Computes remaining bytes */
+        length_to_read -= rc;
+ 
+        if (length_to_read > 0 &&
+            (ctx->byte_timeout.tv_sec > 0 || ctx->byte_timeout.tv_usec > 0)) {
+            /* If there is no character in the buffer, the allowed timeout
+               interval between two consecutive bytes is defined by
+               byte_timeout */
+            tv.tv_sec = ctx->byte_timeout.tv_sec;
+            tv.tv_usec = ctx->byte_timeout.tv_usec;
+            p_tv = &tv;
+        }
+        /* else timeout isn't set again, the full response must be read before
+           expiration of response timeout (for CONFIRMATION only) */
+   }
+
+    if (ctx->debug)
+        printf("\n");
+
+    return ctx->backend->check_integrity(ctx, msg, msg_length);
+}
+
 /* Waits a response from a modbus server or a request from a modbus client.
    This function blocks if there is no replies (3 timeouts).
 

src/modbus.h

@@ -238,6 +238,8 @@ MODBUS_API int modbus_reply(modbus_t *ctx, const uint8_t *req,
 MODBUS_API int modbus_reply_exception(modbus_t *ctx, const uint8_t *req,
                                       unsigned int exception_code);
 
+MODBUS_API int modbus_receive_raw_msg(modbus_t *ctx, uint8_t *msg, int length_to_read);
+
 /**
  * UTILS FUNCTIONS
  **/

src/qt/Debug/Desktop_Qt_5_7_0_GCC_64bit/.qmake.stash

@@ -0,0 +1,15 @@
+QMAKE_DEFAULT_INCDIRS = \
+    /usr/include/c++/5 \
+    /usr/include/x86_64-linux-gnu/c++/5 \
+    /usr/include/c++/5/backward \
+    /usr/lib/gcc/x86_64-linux-gnu/5/include \
+    /usr/local/include \
+    /usr/lib/gcc/x86_64-linux-gnu/5/include-fixed \
+    /usr/include/x86_64-linux-gnu \
+    /usr/include
+QMAKE_DEFAULT_LIBDIRS = \
+    /usr/lib/gcc/x86_64-linux-gnu/5 \
+    /usr/lib/x86_64-linux-gnu \
+    /usr/lib \
+    /lib/x86_64-linux-gnu \
+    /lib

src/qt/Debug/GfA_Device/.qmake.stash

@@ -0,0 +1,13 @@
+QMAKE_DEFAULT_INCDIRS = \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/include/c++/4.9.3 \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/include/c++/4.9.3/arm-buildroot-linux-gnueabihf \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/include/c++/4.9.3/backward \
+    /opt/GfA/TC_L312_C493_QT57/usr/lib/gcc/arm-buildroot-linux-gnueabihf/4.9.3/include \
+    /opt/GfA/TC_L312_C493_QT57/usr/lib/gcc/arm-buildroot-linux-gnueabihf/4.9.3/include-fixed \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/include \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/include
+QMAKE_DEFAULT_LIBDIRS = \
+    /opt/GfA/TC_L312_C493_QT57/usr/lib/gcc/arm-buildroot-linux-gnueabihf/4.9.3 \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/lib \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/sysroot/lib \
+    /opt/GfA/TC_L312_C493_QT57/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib

src/qt/libmodbus.pro

@@ -0,0 +1,35 @@
+TEMPLATE = app
+TARGET = libmodbus.bin
+CONFIG += console
+CONFIG -= app_bundle
+CONFIG -= qt
+
+QMAKE_CFLAGS += -Wall -Wextra -Wformat -Wuninitialized -Wundef -Wcast-qual -Wwrite-strings -pthread -I../../../../ -I../../../
+
+CONFIG(debug, debug|release) {
+	QMAKE_CXXFLAGS -= -Os
+	QMAKE_CFLAGS -= -Os
+    QMAKE_CXXFLAGS += -D_DEBUG
+    QMAKE_CFLAGS += -D_DEBUG -Wno-unused-parameter
+}
+
+HEADERS += \
+    ../modbus-private.h \
+    ../modbus-rtu-private.h \
+    ../modbus-rtu.h \
+    ../modbus-tcp-private.h \
+    ../modbus-tcp.h \
+    ../modbus-version.h.in \
+    ../modbus.h \
+    metronik.h
+
+SOURCES += \
+    ../modbus-data.c \
+    ../modbus-rtu.c \
+    ../modbus-tcp.c \
+    ../modbus.c \
+    main.c \
+    metronik.c
+
+target.path = /opt/GfA/modbus/rtu
+INSTALLS += target

src/qt/libmodbus.pro.user

@@ -0,0 +1,516 @@
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+  <value type="int">2</value>
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+  <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
+  <value type="int">18</value>
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+  <value type="int">18</value>
+ </data>
+</qtcreator>

src/qt/main.c

@@ -0,0 +1,110 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <errno.h>
+#include <time.h>
+#include <modbus.h>
+#include "metronik.h"
+
+/////////////////////////////////////////////////////////////////////////////
+
+#define _RTU_BAUDRATE			19200
+#define _RTU_DATABITS			8
+#define _RTU_STOPBITS			1
+#define _RTU_PARITY				'E'
+#define _SER_ITF_NAME			"/dev/ttyO4"
+
+/////////////////////////////////////////////////////////////////////////////
+
+#define _countof(a)             (sizeof(a) / sizeof(*a))
+#define _DL_NANOSECS_PER_SEC	1000000000
+
+/////////////////////////////////////////////////////////////////////////////
+
+static unsigned long long _GetNanoTick(void)
+{
+	static struct timespec ts;
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	return (unsigned long long)ts.tv_sec * _DL_NANOSECS_PER_SEC + (unsigned long long)ts.tv_nsec;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+static int g_nSlaveIDs[]		= {0x40/*, 1, 2*/};
+static unsigned long g_nSlvIdx	= 0;
+static uint16_t g_nRegisters[50];
+
+/////////////////////////////////////////////////////////////////////////////
+
+int main(void)
+{
+	int ret;
+	modbus_t *ctx;
+	unsigned int nSlaveID, nSlvIdx;
+    unsigned long nLoops = 0;
+    unsigned long nSuccess = 0;
+    unsigned long nErrors = 0;
+    unsigned long long nStart[_countof(g_nSlaveIDs)] = {0};
+    unsigned long long nEnd[_countof(g_nSlaveIDs)] = {0};
+    unsigned long long nRes[_countof(g_nSlaveIDs)] = {0};
+    unsigned long long nSum[_countof(g_nSlaveIDs)] = {0};
+    unsigned long long nCyc[_countof(g_nSlaveIDs)] = {0};
+    unsigned long long nMax[_countof(g_nSlaveIDs)] = {0};
+    unsigned long long nMin[_countof(g_nSlaveIDs)] = {0xFFFFFFFFFFFFFFFF, 0xFFFFFFFFFFFFFFFF, 0xFFFFFFFFFFFFFFFF};
+
+    if((ctx = modbus_new_rtu(_SER_ITF_NAME, _RTU_BAUDRATE, _RTU_PARITY, _RTU_DATABITS, _RTU_STOPBITS)))
+    {
+	    modbus_rtu_set_echohw_mode(ctx, MODBUS_RTU_HAS_ECHOHW);
+//        modbus_set_debug(ctx, 1);
+
+	    if(!modbus_connect(ctx))
+	    {
+	    	while(true)
+	    	{
+	    		++nLoops;
+	    		nSlvIdx = g_nSlvIdx++ % _countof(g_nSlaveIDs);
+	    		nSlaveID = g_nSlaveIDs[nSlvIdx];
+
+		        modbus_set_slave(ctx, nSlaveID);
+
+		        nStart[nSlvIdx] = _GetNanoTick();
+
+				uint8_t b;
+				char c[6] = {0};
+                if((ret = MetronikILMReadSerial(ctx, c, 5)) >= 0)
+//                if((ret = MetronikILMReadRange(ctx, &g_nRegisters[0])) >= 0)
+//                if((ret = MetronikILMReadTemp(ctx, b)) >= 0)
+    	    	{
+			        nEnd[nSlvIdx] = _GetNanoTick();
+		            nRes[nSlvIdx] = nEnd[nSlvIdx] - nStart[nSlvIdx];
+		            ++nSuccess;
+    	    	}
+    	    	else
+    	    	{
+			        nEnd[nSlvIdx] = _GetNanoTick();
+		            nRes[nSlvIdx] = nEnd[nSlvIdx] - nStart[nSlvIdx];
+		            ++nErrors;
+		            fprintf(stderr, "Error Loop %lu Slave %u - %s\n", nLoops, nSlaveID, modbus_strerror(errno));
+    	    	}
+
+                usleep(4000);
+	    	}
+
+		    modbus_close(ctx);
+	    }
+	    else
+	    {
+			fprintf(stderr, "Modbus: Unable to connect!\n");
+	    }
+
+	    modbus_free(ctx);
+    }
+    else
+	{
+		fprintf(stderr, "Modbus: Unable to create the libmodbus context!\n");
+	}
+
+	return 0;
+}

src/qt/metronik.c

@@ -0,0 +1,89 @@
+#include <string.h>
+#include "metronik.h"
+
+#define MODBUS_MAX_DATA_PAYLOAD_LENGTH									252
+
+/////////////////////////////////////////////////////////////////////////////
+
+static int _MetronikRWRaw(modbus_t *ctx, uint8_t func, const void *req, size_t nCbReq, void *res, size_t nCbRes)
+{
+	int ret, nCbToSend, nCbToRcv;
+	uint8_t requ[MODBUS_MAX_DATA_PAYLOAD_LENGTH + 4];
+    uint8_t resp[MODBUS_MAX_DATA_PAYLOAD_LENGTH + 4];
+
+	if(nCbReq > MODBUS_MAX_DATA_PAYLOAD_LENGTH)
+		return -1;
+	if(nCbRes > MODBUS_MAX_DATA_PAYLOAD_LENGTH)
+		return -1;
+
+    requ[0] = (uint8_t)modbus_get_slave(ctx);
+    requ[1] = func;
+    nCbToSend = 2;
+   
+    if(req && nCbReq)
+    {
+		memcpy(&requ[2], req, nCbReq);
+		nCbToSend += (int)nCbReq;
+	}
+
+    if((ret = modbus_send_raw_request(ctx, requ, nCbToSend)) < 0)
+    	return ret;
+
+    nCbToRcv = (int)nCbRes + 4;
+    if((ret = modbus_receive_raw_msg(ctx, resp, nCbToRcv)) == nCbToRcv)
+	{
+		if(res && nCbRes)
+			memcpy(res, &resp[2], nCbRes);
+	}
+
+   	return ret;
+}
+
+static int _MetronikReadUint16(modbus_t *ctx, uint8_t func, uint16_t *val)
+{
+	uint16_t v;
+	int nRet = _MetronikRWRaw(ctx, func, NULL, 0, &v, sizeof(v));
+	if(val && nRet > 0)
+		*val = v << 8 | v >> 8;
+	return nRet;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////
+
+int MetronikILMReadUV(modbus_t *ctx, uint16_t *val)
+{
+	return _MetronikReadUint16(ctx, MB_ILM_FUNC_READ_UV, val);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+int MetronikILMReadTemp(modbus_t *ctx, uint8_t *val)
+{
+	return _MetronikRWRaw(ctx, MB_ILM_FUNC_READ_TEMP, NULL, 0, val, sizeof(uint8_t));
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+int MetronikILMUnlock(modbus_t *ctx, uint8_t *val)
+{
+	uint8_t buf[] = {0x0C, 0x31};
+	return _MetronikRWRaw(ctx, MB_ILM_FUNC_UNLOCK, buf, sizeof(buf), val, sizeof(uint8_t));
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+int MetronikILMReadRange(modbus_t *ctx, uint16_t *val)
+{
+	return _MetronikReadUint16(ctx, MB_ILM_FUNC_READ_RANGE, val);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+int MetronikILMReadSerial(modbus_t *ctx, uint8_t *val, size_t nCbVal)
+{
+	if(nCbVal < 5)
+		return -1;
+	return _MetronikRWRaw(ctx, MB_ILM_FUNC_READ_SERIAL, NULL, 0, val, 5);
+}

src/qt/metronik.h

@@ -0,0 +1,55 @@
+// metronik.h :
+//
+
+/*
+ *
+ *	ACHTUNG:
+ *	Befindet sich der Sensors am Bus mit anderen Teilnehmern führt ein Pollen der Slaves mit einem Frame-Delay < 10 ms zu Timeout-Problemen des Sensors!
+ *
+ */
+
+#if !defined(AGD_METRONIK_H__307066E3_A2D6_4104_A274_BC71B3798328__INCLUDED_)
+#define AGD_METRONIK_H__307066E3_A2D6_4104_A274_BC71B3798328__INCLUDED_
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "modbus.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif	//	__cplusplus
+
+/////////////////////////////////////////////////////////////////////////////
+// metronik.h - Declarations:
+
+#define MB_ILM_FUNC_READ_UV							((uint8_t)0x41)
+#define MB_ILM_FUNC_READ_TEMP						((uint8_t)0x42)
+#define MB_ILM_FUNC_UNLOCK							((uint8_t)0x43)
+#define MB_ILM_FUNC_NEW_ADDR						((uint8_t)0x44)
+#define MB_ILM_FUNC_READ_RANGE						((uint8_t)0x45)
+#define MB_ILM_FUNC_READ_SERIAL						((uint8_t)0x46)
+
+/////////////////////////////////////////////////////////////////////////////
+
+int MetronikILMReadUV(modbus_t *ctx, uint16_t *val);
+int MetronikILMReadTemp(modbus_t *ctx, uint8_t *val);
+int MetronikILMReadRange(modbus_t *ctx, uint16_t *val);
+int MetronikILMReadSerial(modbus_t *ctx, uint8_t *val, size_t nCbVal);
+int MetronikILMUnlock(modbus_t *ctx, uint8_t *val);
+
+/*
+ *	MetronikILMNewAddr: Weist dem Sensor eine neue Slave-Adresse zu.
+ *	Achtung: Der Sensor antwortet bei Erfolg bereits mit der neuen Slave-Adresse im Antwort-Frame!!!
+ *	Der Master ruft im Anschluss die Completion-Funktion mit dem Fehlercode MB_MST_ERROR_INVALID_SLAVE_ID (1) auf!
+ *	Die neue Slave-Adresse wurde in diesem Fall aber erfolgreich im Slave gesetzt!
+ *
+ *	Achtung: Der Sensor akzeptiert die Broadcast-Adresse 0 als Slave-ID!!!! Diese sollte niemals gesetzt werden!
+ */
+int MetronikILMNewAddr(modbus_t *ctx, uint8_t nNewAddr);
+
+
+/////////////////////////////////////////////////////////////////////////////
+#ifdef __cplusplus
+}
+#endif	//	__cplusplus
+#endif	//	!defined(AGD_METRONIK_H__307066E3_A2D6_4104_A274_BC71B3798328__INCLUDED_)