mirror of
https://github.com/uhi22/pyPLC.git
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122 lines
5 KiB
Python
122 lines
5 KiB
Python
# Worker for the pyPLC
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#
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# Tested on
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# - Windows10 with python 3.9 and
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# - Raspbian with python 3.9
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#
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#------------------------------------------------------------
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import pyPlcHomeplug
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import fsmEvse
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import fsmPev
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from pyPlcModes import *
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import addressManager
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import time
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import subprocess
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import hardwareInterface
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class pyPlcWorker():
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def __init__(self, callbackAddToTrace=None, callbackShowStatus=None, mode=C_EVSE_MODE, isSimulationMode=0):
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print("initializing pyPlcWorker")
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self.nMainFunctionCalls=0
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self.mode = mode
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self.strUserAction = ""
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self.addressManager = addressManager.addressManager()
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self.addressManager.findLinkLocalIpv6Address()
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self.callbackAddToTrace = callbackAddToTrace
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self.callbackShowStatus = callbackShowStatus
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self.oldAvlnStatus = 0
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self.isSimulationMode = isSimulationMode
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self.hp = pyPlcHomeplug.pyPlcHomeplug(self.workerAddToTrace, self.callbackShowStatus, self.mode, self.addressManager, self.callbackReadyForTcp, self.isSimulationMode)
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self.hardwareInterface = hardwareInterface.hardwareInterface(self.workerAddToTrace)
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self.hp.printToUdp("pyPlcWorker init")
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# Find out the version number, using git.
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# see https://stackoverflow.com/questions/14989858/get-the-current-git-hash-in-a-python-script
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try:
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strLabel = str(subprocess.check_output(["git", "describe", "--tags"], text=True).strip())
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except:
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strLabel = "(unknown version. 'git describe --tags' failed.)"
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self.workerAddToTrace("[pyPlcWorker] Software version " + strLabel)
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if (self.mode == C_EVSE_MODE):
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self.evse = fsmEvse.fsmEvse(self.workerAddToTrace)
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if (self.mode == C_PEV_MODE):
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self.pev = fsmPev.fsmPev(self.addressManager, self.workerAddToTrace, self.hardwareInterface)
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def __del__(self):
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if (self.mode == C_PEV_MODE):
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print("worker: deleting pev")
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del(self.pev)
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def workerAddToTrace(self, s):
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# The central logging function. All logging messages from the different parts of the project
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# shall come here.
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#print("workerAddToTrace " + s)
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self.callbackAddToTrace(s) # give the message to the upper level, eg for console log.
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self.hp.printToUdp(s) # give the message to the udp for remote logging.
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def showStatus(self, s, selection = ""):
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self.callbackShowStatus(s, selection)
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def callbackReadyForTcp(self, status):
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if (status==1):
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self.workerAddToTrace("[PLCWORKER] Network is established, ready for TCP.")
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#self.workerAddToTrace("[PLCWORKER] Waiting....")
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#time.sleep(5)
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#self.workerAddToTrace("[PLCWORKER] now...")
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if (self.oldAvlnStatus==0):
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self.oldAvlnStatus = 1
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if (self.mode == C_PEV_MODE):
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self.pev.reInit()
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else:
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self.workerAddToTrace("[PLCWORKER] no network")
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self.oldAvlnStatus = 0
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def mainfunction(self):
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self.nMainFunctionCalls+=1
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#self.showStatus("pyPlcWorker loop " + str(self.nMainFunctionCalls))
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self.hp.mainfunction() # call the lower-level workers
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self.hardwareInterface.mainfunction()
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if (self.mode == C_EVSE_MODE):
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self.evse.mainfunction() # call the evse state machine
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if (self.mode == C_PEV_MODE):
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self.pev.mainfunction() # call the pev state machine
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def handleUserAction(self, strAction):
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self.strUserAction = strAction
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if (strAction == "P"):
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print("switching to PEV mode")
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self.mode = C_PEV_MODE
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if (hasattr(self, 'evse')):
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print("deleting evse")
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del self.evse
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self.hp.enterPevMode()
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if (not hasattr(self, 'pev')):
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print("creating pev")
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self.pev = fsmPev.fsmPev(self.addressManager, self.workerAddToTrace, self.hardwareInterface)
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self.pev.reInit()
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if (strAction == "E"):
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print("switching to EVSE mode")
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self.mode = C_EVSE_MODE
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if (hasattr(self, 'pev')):
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print("deleting pev")
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del self.pev
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self.hp.enterEvseMode()
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if (not hasattr(self, 'evse')):
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print("creating fsmEvse")
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self.evse = fsmEvse.fsmEvse(self.workerAddToTrace)
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self.evse.reInit()
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if (strAction == "L"):
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print("switching to LISTEN mode")
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self.mode = C_LISTEN_MODE
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self.hp.enterListenMode()
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if (hasattr(self, 'evse')):
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print("deleting evse")
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del self.evse
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if (hasattr(self, 'pev')):
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print("deleting pev")
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del self.pev
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# self.addToTrace("UserAction " + strAction)
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self.hp.sendTestFrame(strAction)
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