Diff: Devices/TimerDevice.cpp

Revision:

11:bc9cd2869f95

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Devices/TimerDevice.cpp	Wed Oct 01 18:11:38 2014 +0000
@@ -0,0 +1,146 @@
+#include "TimerDevice.hpp"
+
+//Constructor
+TimerDevice::TimerDevice(LineData lineData){
+    //No Constructor needed... functionality already exists in mBed library
+}
+
+
+//A line consists of [ __(Local_Name)__ __(function)__ __(parameter1)__ __(parameter2)__ __(parameter3)__ ... and so on]
+int TimerDevice::interpret(LineData &lineData){
+
+
+            
+    //Order of line: local_name, function_name, param1, param2, param3,.......
+    string func = lineData.word[1];
+
+    /******************************************************************************/
+    /***                          <func: start>                                 ***/
+    /******************************************************************************/
+    if (func.compare("start") == 0){
+        
+        if (lineData.numWords != 2){
+            ErrorOut("Incorrect number of parameters", lineData.lineNumber);
+            return -1;
+        }
+        
+        //All syntax checking done by this point, if Dummy then return success in order to check the code, no need to perform functionality
+        if (DummyMode)
+            return 0; //Function operated successfully but doesn't return a value
+            
+        this->Timer.start();
+    }
+    
+    
+    /******************************************************************************/
+    /***                           <func: stop>                                 ***/
+    /******************************************************************************/
+    else if (func.compare("stop") == 0){
+    
+        if (lineData.numWords != 2){
+            ErrorOut("Incorrect number of parameters", lineData.lineNumber);
+            return -1;
+        }
+        
+        //All syntax checking done by this point, if Dummy then return success in order to check the code, no need to perform functionality
+        if (DummyMode)
+            return 0; //Function operated successfully but doesn't return a value
+            
+        this->Timer.stop();
+    }
+    
+    /******************************************************************************/
+    /***                          <func: reset>                                 ***/
+    /******************************************************************************/
+    else if (func.compare("reset") == 0){
+  
+        if (lineData.numWords != 2){
+            ErrorOut("Incorrect number of parameters", lineData.lineNumber);
+            return -1;
+        }
+
+        //All syntax checking done by this point, if Dummy then return success in order to check the code, no need to perform functionality
+        if (DummyMode)
+            return 0; //Function operated successfully but doesn't return a value
+              
+        this->Timer.stop();
+        this->Timer.reset();            
+        this->Timer.start();
+    }
+    
+    /******************************************************************************/
+    /****                           <func: val>                                ****/
+    /******************************************************************************/
+    else if (func.compare("val") == 0){
+
+        //line looks like: local_name, val, comparison_characteristics (<, >, =)
+        if (lineData.numWords != 4){
+            ErrorOut("Incorrect number of parameters", lineData.lineNumber);
+            return -1;
+        }
+        
+        string cmpChar = lineData.word[2];  //Get the comparison characteristic value
+        
+        string timestr = lineData.word[3];  //Parameter is a number
+        int timeValue = 0;                  //Time value to compare in ms
+        int numValuesFound = sscanf(timestr.c_str(), "%d", &timeValue);
+        if (numValuesFound < 1){
+            ErrorOut("Parameter Unknown,  time value can't be converted", lineData.lineNumber);
+            return -1;
+        }
+
+        //Error check comparision characteristic
+        if (cmpChar.compare("<") != 0 && cmpChar.compare(">") != 0 && cmpChar.compare("=") != 0){
+            ErrorOut("Parameter Unknown,  comparison character can't be converted", lineData.lineNumber);
+            return -1;
+        }
+
+        //All syntax checking done by this point, if Dummy then return success in order to check the code, no need to perform functionality
+        if (DummyMode)
+            return 0; //Function operated successfully but doesn't return a value
+            
+        if (cmpChar.compare("<") == 0){
+            if (this->Timer.read_ms() < timeValue)
+                return 1; //met condition
+        }
+        else if (cmpChar.compare(">") == 0){
+            if (this->Timer.read_ms() > timeValue)
+                return 1; //met condition
+        }
+        else if (cmpChar.compare("=") == 0){
+            if (this->Timer.read_ms() == timeValue)
+                return 1; //met condition
+        }
+        
+    }
+    
+    
+    else {
+        ErrorOut("Unknown Command for Voltage Driver Class", lineData.lineNumber);
+        return -1;
+    }  
+            
+    return 0; //Return success as 0 since no condition had to be met
+}
+
+
+//For stopping the entire system if an error occurs, can be called from main
+int TimerDevice::off(void){
+    this->Timer.stop();
+    return 0;
+}
+
+
+//Pause the timer
+int TimerDevice::pause(void){
+    this->Timer.stop();
+    return 0;
+}
+
+//Resume the timer
+int TimerDevice::resume(void){
+    this->Timer.start();
+    return 0;
+}
+
+