Add process to allow modified smartctl commands

monitor/configfile.py

@@ -22,10 +22,10 @@ class ConfigClass:
         occasionally.
         
         '''
-        if not self.readFile:
+        try:
             _result = self.config.read( self.filename )
-            if len(_result) > 0:
+        except Exception as error:
-                self.readFile = True
+            print( f"{error}" )
         
     def getValue( self, section : str, key : str, default="" ) -> str:
         '''
@@ -41,7 +41,6 @@ class ConfigClass:
             The value of the key from the section read.
         '''
         value = default
-        self._openConfig()
         try:
             value = self.config[section][key].replace('"','').strip()
         except:
@@ -62,7 +61,6 @@ class ConfigClass:
             a List of items
         '''
         value = default
-        self._openConfig()
         try:
             temp = self.config[section][name]
             value = [ n.replace('"','').strip() for n in temp.split(",")]
@@ -77,6 +75,9 @@ if __name__ == "__main__":
     print( f"Value = {cfg.getValue( 'performance', 'ignore' )}" )
     print( f"Value = {cfg.getValueAsList( 'performance', 'ignore' )}" )
 
+    drive = cfg.getValue( 'smartctl', 'sda' )
+    print( f"drive = {drive}" )
+    
     cfg = ConfigClass( "missingfile.ini" )
     
         

monitor/oneUpMon.py

@@ -8,13 +8,16 @@ Requires: PyQt5 (including QtCharts)
 """
 
 import sys
-from systemsupport import CPUInfo, CPULoad, multiDriveStat
+from systemsupport import CPUInfo, CPULoad, multiDriveStat, CaseFan
 from configfile import ConfigClass
 
 # --------------------------
 # Globals
 # --------------------------
 
+MIN_WIDTH   = 1000
+MIN_HEIGHT  = 800
+
 # --------------------------
 # UI
 # --------------------------
@@ -267,10 +270,12 @@ class MonitorWindow(QMainWindow):
         # Get supporting objects
         self.cpuinfo    = CPUInfo()
         self.cpuload    = CPULoad()
+        self.casefan    = CaseFan()
+        self.caseFanPin = None
         self.multiDrive = multiDriveStat()
         
         self.setWindowTitle("System Monitor")
-        self.setMinimumSize(900, 900)
+        self.setMinimumSize(MIN_WIDTH, MIN_HEIGHT)
 
         central = QWidget(self)
         grid = QGridLayout(central)
@@ -299,11 +304,13 @@ class MonitorWindow(QMainWindow):
             window=window
             )
         
-        casefan = self.config.getValue( "cooling", "casefan", None )
+        if self.cpuinfo.model == 5:
-        if casefan is None:
+            self.caseFanPin = self.config.getValue( "cooling", "casefan", None )
-            series = [("RPM",None)]
+            if self.caseFanPin is None:
+                series = [("CPU",None)]
             else:
-            series = [("CPU", None),("CaseFan",None)]
+                self.casefan.setTACHPin( self.caseFanPin)
+                series = [("CPU",None),("CaseFan",None)]
 
             self.fan_chart = RollingChart(
                 title="Fan Speed",
@@ -311,6 +318,8 @@ class MonitorWindow(QMainWindow):
                 y_min=0,y_max=6000,
                 window=window
             )
+        else:
+            self.fan_chart = None
 
         series = []
         for name in self.multiDrive.drives:
@@ -328,8 +337,11 @@ class MonitorWindow(QMainWindow):
         # Layout: 2x2 grid (CPU, NVMe on top; IO full width bottom)
         grid.addWidget(self.use_chart, 0, 0, 1, 2 )
         grid.addWidget(self.io_chart,  1, 0, 1, 2 )
+        if self.fan_chart:
             grid.addWidget(self.cpu_chart, 2, 0, 1, 1 )
             grid.addWidget(self.fan_chart, 2, 1, 1, 1 )
+        else:
+            grid.addWidget(self.cpu_chart, 2, 0, 1, 2 )
 
         # Get the initial information from the syste
         self.refresh_metrics()
@@ -350,11 +362,14 @@ class MonitorWindow(QMainWindow):
         # Obtain the current fan speed
         if self.cpuinfo.model == 5:
             try:
-                fan_speed = self.cpuinfo.CPUFanSpeed
+                if self.caseFanPin:
-            except Exception:
+                    fan_speed = [self.cpuinfo.CPUFanSpeed,self.casefan.speed]
-                fan_speed = None
                 else:
-            fan_speed = None
+                    fan_speed = [self.cpuinfo.CPUFanSpeed]
+            except Exception:
+                fan_speed = [None,None]
+        else:
+            fan_speed = [None,None]
 
         # Setup the temperature for the CPU and Drives
         temperatures = []
@@ -392,7 +407,8 @@ class MonitorWindow(QMainWindow):
 
         # Append to charts
         self.cpu_chart.append( temperatures )
-        self.fan_chart.append([fan_speed])
+        if self.fan_chart:
+            self.fan_chart.append( fan_speed )
         self.io_chart.append( rwData )
         self.use_chart.append( values )
 
@@ -404,4 +420,3 @@ def main():
 
 if __name__ == "__main__":
     main()
-

monitor/systemsupport.py

@@ -84,6 +84,7 @@ class DriveStats:
     def name(self) -> str:
         return self._device
     
+    @property
     def readAllStats( self ) -> list[int]:
         '''
         read all of the drive statisics from sysfs for the device.
@@ -93,19 +94,24 @@ class DriveStats:
         '''
         return self._getStats()
         
+    @property
     def readSectors( self )-> int:
         return self._getStats()[DriveStats.READ_SECTORS]
     
+    @property
     def writeSectors( self ) -> int:
         return self._getStats()[DriveStats.WRITE_SECTORS]
         
+    @property
     def discardSectors( self ) -> int:
         return self._getStats()[DriveStats.DISCARD_SECTORS]
         
+    @property
     def readWriteSectors( self ) -> tuple[int,int]:
         curData = self._getStats()
         return (curData[DriveStats.READ_SECTORS],curData[DriveStats.WRITE_SECTORS])
     
+    @property
     def readWriteBytes( self ) -> tuple[int,int]:
         curData = self._getStats()
         return (curData[DriveStats.READ_SECTORS]*512,curData[DriveStats.WRITE_SECTORS]*512)
@@ -168,6 +174,19 @@ class multiDriveStat():
             return 0
         
     def driveTemp(self,_drive:str, extracmd = None) -> float:
+        '''
+        Get the drive temperature using smart data.  There are three basic temperature
+        settings we can read, smart ID 194, 190 and the Temperature: value.  These are
+        depenent on the drive, so look for all of them, and depending on the result, we
+        get the value.
+        
+        Parameters:
+            _drive   : The device we wish to scan
+            extraCmd : An optional additional command to send to the device.
+            
+        Returns:
+            The temperature as a float, or zero if there is an error.
+        '''
         smartOutRaw = ""
         if extracmd is None:
             cmd = f'sudo smartctl -A /dev/{_drive}'
@@ -208,7 +227,7 @@ class multiDriveStat():
         '''
         curData = {}
         for _ in self._stats:
-            curData[_.name] = _.readWriteSectors()
+            curData[_.name] = _.readWriteSectors
         return curData
     
     def readWriteBytes( self ) -> dict[str,tuple[int,int]]:
@@ -218,7 +237,7 @@ class multiDriveStat():
         '''
         curData = {}
         for _ in self._stats:
-            curData[_.name] = _.readWriteBytes()
+            curData[_.name] = _.readWriteBytes
         return curData
    
 class CPUInfo:
@@ -230,14 +249,26 @@ class CPUInfo:
         self._cputemp = CPUTemperature()
         
     def _cpuModel( self ) -> int:
+        '''
+        Check for the cpu model.  Scan cpuinfo to see if we can locate a string that
+        matches something we are looking for.
+        
+        Return:
+            Model of the Raspberry PI.  This treats the Comput Modules the same as
+            standard model B's
+        '''
         with os.popen( "grep Model /proc/cpuinfo" ) as command:
             data = command.read()
             if "Compute Module 5" in data:
                 return 5
-            elif "Raspberry Pi 4" in data:
-                return 4
             elif "Raspberry Pi 5" in data:
                 return 5
+            elif "Raspberry Pi 4" in data:
+                return 4
+            elif "Compute Module 4" in data:
+                return 4
+            elif "Raspberry Pi 3" in data:
+                return 3
             else:
                 return 0
             
@@ -382,6 +413,20 @@ class CPULoad:
         '''
         return len(self._previousData)
 
+class CaseFan:
+    '''
+    Class used to monitor a TACH from a case fan.  
+    '''
+    def __init__( self, pin=None ):
+        self.tach = pin
+        self.rpm  = 0
+        
+    def setTACHPin( self, pin = int):
+        self.tach = pin
+        
+    @property
+    def speed( self ) -> float:
+        return self.rpm
     
 if __name__ == "__main__":
     
@@ -399,6 +444,11 @@ if __name__ == "__main__":
     print( f"CPU Fan Speed   = {cpuinfo.CPUFanSpeed}" )
     print( f"CPU Model       = {cpuinfo.model}" )
     
+    caseFan = CaseFan( 18 )
+    print( f"RPM = {caseFan.speed}" )
+    time.sleep(1)
+    print( f"RPM = {caseFan.speed}" )
+    
     test = multiDriveStat()
     print( test.drives )
     for drive in test.drives:

monitor/test.ini

@@ -3,3 +3,8 @@
 
 [performance]
    ignore = "mmcblk0"
+
+[smartctl]
+   sda="foobar"
+   sda="duplicate"
+   sdb='hello'