Plc measurement

See merge request !28

coupler/cli.h

@@ -199,7 +199,7 @@ void handleCLI(int argc, char **argv) {
 
     // update current measurement mode
     const char* s = getenv("CURRENT_GPIO_MODE");
-    if (s != NULL) CURRENT_GPIO_MODE = 1;
+    if (s != NULL) CURRENT_GPIO_MODE = atoi(s);
     printf("GPIO measurement mode = %d\n", CURRENT_GPIO_MODE);
 }
 

coupler/keep_alive.h

@@ -20,7 +20,12 @@ static unsigned int SAFE_MODE_STATE_COUNTER = 0;
 // the current GPI state (used for debuging)
 static unsigned int CURRENT_GPIO_STATE = 0;
 
-// variable representing the measurement over GPIO
+/*
+*  variable representing the measurement mode over GPIO
+*  0: disabled
+*  1: enabled for keep-alive subsystem
+*  2: enabled for first i2c0.relay0
+*/
 static unsigned int CURRENT_GPIO_MODE = 0;
 
 // the heart beat interval (in ms)

coupler/keep_alive_subscriber.h

@@ -61,10 +61,6 @@ static int setGPIO() {
   if(ioctl(led.fd, GPIOHANDLE_SET_LINE_VALUES_IOCTL, &data) < 0)
     perror("Error setting GPIO to 1");
 
-  // debug
-  //UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND, \
-  //            "GPIO = %d",  CURRENT_GPIO_STATE);
-
   close(fd);
   close(led.fd);
   return 0;
@@ -100,7 +96,7 @@ static void dataChangeNotificationCallback(UA_Server *server, UA_UInt32 monitore
 
 	  // set GPIO so we can monitor using logical analyzer the work of
 	  // keep-alive network system
-	  if (CURRENT_GPIO_MODE) setGPIO();
+	  if (CURRENT_GPIO_MODE == 1) setGPIO();
 
 	}
     }

coupler/mod_io_opc_ua.h

@@ -470,6 +470,9 @@ static void afterWriteTimeI2C0_0(UA_Server *server,
     if (data->value.type == &UA_TYPES[UA_TYPES_INT32])
     {
         UA_Int32 hrValue = *(UA_Int32 *)data->value.data;
+        // used only for debuging with logical analyzer
+        if (CURRENT_GPIO_MODE == 2) setGPIO();
+
         int addr = I2C_SLAVE_ADDR_LIST[0];
         if (hrValue > 0)
         {

coupler/server.c

@@ -20,7 +20,6 @@
 #include <string.h>
 #include "common.h"
 #include "mod_io_i2c.h"
-#include "mod_io_opc_ua.h"
 #include <time.h>
 #include <open62541/plugin/log_stdout.h>
 #include <open62541/server.h>
@@ -57,6 +56,7 @@ char *X509_CERTIFICATE_FILENAME;
 #include "keep_alive_publisher.h"
 #include "keep_alive_subscriber.h"
 #include "cli.h"
+#include "mod_io_opc_ua.h"
 
 static volatile UA_Boolean running = true;