438 lines
13 KiB
Python
438 lines
13 KiB
Python
from __future__ import absolute_import
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import __init__
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import os, glob, sys, time, math, re, traceback, threading
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import Queue as queue
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from serial import Serial
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from avr_isp import stk500v2
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from avr_isp import ispBase
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from avr_isp import intelHex
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from util import profile
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try:
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import _winreg
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except:
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pass
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def serialList():
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baselist=[]
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if os.name=="nt":
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try:
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key=_winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE,"HARDWARE\\DEVICEMAP\\SERIALCOMM")
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i=0
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while(1):
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baselist+=[_winreg.EnumValue(key,i)[1]]
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i+=1
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except:
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pass
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baselist = baselist + glob.glob('/dev/ttyUSB*') + glob.glob('/dev/ttyACM*') + glob.glob("/dev/tty.usb*") + glob.glob("/dev/cu.*") + glob.glob("/dev/rfcomm*")
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prev = profile.getPreference('serial_port_auto')
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if prev in baselist:
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baselist.remove(prev)
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baselist.insert(0, prev)
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return baselist
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def baudrateList():
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ret = [250000, 230400, 115200, 57600, 38400, 19200, 9600]
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if profile.getPreference('serial_baud_auto') != '':
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prev = int(profile.getPreference('serial_baud_auto'))
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if prev in ret:
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ret.remove(prev)
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ret.insert(0, prev)
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return ret
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class VirtualPrinter():
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def __init__(self):
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self.readList = ['start\n', 'Marlin: Virtual Marlin!\n', '\x80\n']
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self.temp = 0.0
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self.targetTemp = 0.0
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self.lastTempAt = time.time()
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self.bedTemp = 1.0
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self.bedTargetTemp = 1.0
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def write(self, data):
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if self.readList == None:
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return
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#print "Send: %s" % (data.rstrip())
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if 'M104' in data or 'M109' in data:
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try:
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self.targetTemp = float(data[data.find('S')+1:])
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except:
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pass
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if 'M140' in data or 'M190' in data:
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try:
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self.bedTargetTemp = float(data[data.find('S')+1:])
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except:
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pass
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if 'M105' in data:
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self.readList.append("ok T:%.2f /%.2f B:%.2f /%.2f @:64\n" % (self.temp, self.targetTemp, self.bedTemp, self.bedTargetTemp))
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elif len(data.strip()) > 0:
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self.readList.append("ok\n")
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def readline(self):
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if self.readList == None:
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return ''
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n = 0
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timeDiff = self.lastTempAt - time.time()
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self.lastTempAt = time.time()
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if abs(self.temp - self.targetTemp) > 1:
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self.temp += math.copysign(timeDiff, self.targetTemp - self.temp)
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if abs(self.bedTemp - self.bedTargetTemp) > 1:
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self.bedTemp += math.copysign(timeDiff, self.bedTargetTemp - self.bedTemp)
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while len(self.readList) < 1:
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time.sleep(0.1)
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n += 1
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if n == 20:
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return ''
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if self.readList == None:
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return ''
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time.sleep(0.01)
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#print "Recv: %s" % (self.readList[0].rstrip())
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return self.readList.pop(0)
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def close(self):
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self.readList = None
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class MachineComPrintCallback(object):
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def mcLog(self, message):
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print(message)
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def mcTempUpdate(self, temp, bedTemp):
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pass
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def mcStateChange(self, state):
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pass
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def mcMessage(self, message):
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pass
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def mcProgress(self, lineNr):
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pass
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def mcZChange(self, newZ):
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pass
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class MachineCom(object):
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STATE_NONE = 0
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STATE_DETECT_BAUDRATE = 1
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STATE_CONNECTING = 2
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STATE_OPERATIONAL = 3
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STATE_PRINTING = 4
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STATE_PAUSED = 5
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STATE_CLOSED = 6
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STATE_ERROR = 7
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STATE_CLOSED_WITH_ERROR = 8
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def __init__(self, port = None, baudrate = None, callbackObject = None):
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if port == None:
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port = profile.getPreference('serial_port')
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if baudrate == None:
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if profile.getPreference('serial_baud') == 'AUTO':
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baudrate = 0
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else:
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baudrate = int(profile.getPreference('serial_baud'))
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if callbackObject == None:
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callbackObject = MachineComPrintCallback()
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self._callback = callbackObject
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self._state = self.STATE_NONE
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self._serial = None
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self._baudrateDetectList = baudrateList()
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self._baudrateDetectRetry = 0
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self._temp = 0
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self._bedTemp = 0
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self._gcodeList = None
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self._gcodePos = 0
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self._commandQueue = queue.Queue()
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self._logQueue = queue.Queue(256)
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self._feedRateModifier = {}
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self._currentZ = -1
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if port == 'AUTO':
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programmer = stk500v2.Stk500v2()
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self._log("Serial port list: %s" % (str(serialList())))
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for port in serialList():
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try:
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self._log("Connecting to: %s" % (port))
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programmer.connect(port)
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self._serial = programmer.leaveISP()
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profile.putPreference('serial_port_auto', port)
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break
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except ispBase.IspError as (e):
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self._log("Error while connecting to %s: %s" % (port, str(e)))
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pass
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except:
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self._log("Unexpected error while connecting to serial port: %s %s" % (port, getExceptionString()))
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programmer.close()
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elif port == 'VIRTUAL':
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self._serial = VirtualPrinter()
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else:
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try:
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self._log("Connecting to: %s" % (port))
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if baudrate == 0:
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self._serial = Serial(port, 115200, timeout=0.1)
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else:
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self._serial = Serial(port, baudrate, timeout=2)
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except:
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self._log("Unexpected error while connecting to serial port: %s %s" % (port, getExceptionString()))
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self._log("Connected to: %s, starting monitor" % (self._serial))
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if baudrate == 0:
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self._changeState(self.STATE_DETECT_BAUDRATE)
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else:
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self._changeState(self.STATE_CONNECTING)
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self.thread = threading.Thread(target=self._monitor)
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self.thread.daemon = True
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self.thread.start()
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def _changeState(self, newState):
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if self._state == newState:
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return
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oldState = self.getStateString()
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self._state = newState
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self._log('Changing monitoring state from \'%s\' to \'%s\'' % (oldState, self.getStateString()))
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self._callback.mcStateChange(newState)
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def getState(self):
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return self._state
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def getStateString(self):
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if self._state == self.STATE_NONE:
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return "Offline"
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if self._state == self.STATE_DETECT_BAUDRATE:
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return "Detect baudrate"
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if self._state == self.STATE_CONNECTING:
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return "Connecting"
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if self._state == self.STATE_OPERATIONAL:
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return "Operational"
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if self._state == self.STATE_PRINTING:
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return "Printing"
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if self._state == self.STATE_PAUSED:
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return "Paused"
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if self._state == self.STATE_CLOSED:
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return "Closed"
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if self._state == self.STATE_ERROR:
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return "Error: %s" % (self._errorValue)
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if self._state == self.STATE_CLOSED_WITH_ERROR:
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return "Error: %s" % (self._errorValue)
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return "?%d?" % (self._state)
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def isClosedOrError(self):
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return self._state == self.STATE_ERROR or self._state == self.STATE_CLOSED_WITH_ERROR or self._state == self.STATE_CLOSED
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def isOperational(self):
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return self._state == self.STATE_OPERATIONAL or self._state == self.STATE_PRINTING or self._state == self.STATE_PAUSED
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def isPrinting(self):
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return self._state == self.STATE_PRINTING
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def getPrintPos(self):
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return self._gcodePos
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def isPaused(self):
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return self._state == self.STATE_PAUSED
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def getTemp(self):
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return self._temp
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def getBedTemp(self):
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return self._bedTemp
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def _monitor(self):
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timeout = time.time() + 5
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while True:
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line = self._readline()
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if line == None:
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break
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#No matter the state, if we see an error, goto the error state and store the error for reference.
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if line.startswith('Error: '):
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#Oh YEAH, consistency.
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# Marlin reports an MIN/MAX temp error as "Error: x\n: Extruder switched off. MAXTEMP triggered !\n"
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# But a bed temp error is reported as "Error: Temperature heated bed switched off. MAXTEMP triggered !!"
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# So we can have an extra newline in the most common case. Awesome work people.
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if re.match('Error: [0-9]\n', line):
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line = line.rstrip() + self._readline()
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self._errorValue = line
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self._changeState(self.STATE_ERROR)
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if 'T:' in line:
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self._temp = float(re.search("[0-9\.]*", line.split('T:')[1]).group(0))
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if 'B:' in line:
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self._bedTemp = float(re.search("[0-9\.]*", line.split('B:')[1]).group(0))
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self._callback.mcTempUpdate(self._temp, self._bedTemp)
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elif line.strip() != 'ok':
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self._callback.mcMessage(line)
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if self._state == self.STATE_DETECT_BAUDRATE:
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if line == '' or time.time() > timeout:
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if len(self._baudrateDetectList) < 1:
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self._log("No more baudrates to test, and no suitable baudrate found.")
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self.close()
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elif self._baudrateDetectRetry > 0:
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self._baudrateDetectRetry -= 1
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self._serial.write('\n')
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self._sendCommand("M105")
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else:
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baudrate = self._baudrateDetectList.pop(0)
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try:
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self._serial.baudrate = baudrate
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self._serial.timeout = 0.5
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self._log("Trying baudrate: %d" % (baudrate))
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self._baudrateDetectRetry = 5
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timeout = time.time() + 5
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self._serial.write('\n')
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self._sendCommand("M105")
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except:
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self._log("Unexpected error while setting baudrate: %d %s" % (baudrate, getExceptionString()))
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elif 'ok' in line:
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self._serial.timeout = 2
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profile.putPreference('serial_baud_auto', self._serial.baudrate)
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self._changeState(self.STATE_OPERATIONAL)
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elif self._state == self.STATE_CONNECTING:
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if line == '':
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self._sendCommand("M105")
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elif 'ok' in line:
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self._changeState(self.STATE_OPERATIONAL)
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if time.time() > timeout:
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self.close()
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elif self._state == self.STATE_OPERATIONAL:
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#Request the temperature on comm timeout (every 2 seconds) when we are not printing.
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if line == '':
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self._sendCommand("M105")
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tempRequestTimeout = time.time() + 5
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elif self._state == self.STATE_PRINTING:
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if line == '' and time.time() > timeout:
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self._log("Communication timeout during printing, forcing a line")
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line = 'ok'
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#Even when printing request the temperture every 5 seconds.
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if time.time() > tempRequestTimeout:
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self._commandQueue.put("M105")
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tempRequestTimeout = time.time() + 5
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if 'ok' in line:
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timeout = time.time() + 5
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if not self._commandQueue.empty():
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self._sendCommand(self._commandQueue.get())
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else:
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self._sendNext()
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elif "resend" in line.lower() or "rs" in line:
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try:
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self._gcodePos = int(line.replace("N:"," ").replace("N"," ").replace(":"," ").split()[-1])
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except:
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if "rs" in line:
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self._gcodePos = int(line.split()[1])
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self._log("Connection closed, closing down monitor")
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def _log(self, message):
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self._callback.mcLog(message)
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try:
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self._logQueue.put(message, False)
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except:
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#If the log queue is full, remove the first message and append the new message again
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self._logQueue.get()
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self._logQueue.put(message, False)
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def _readline(self):
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if self._serial == None:
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return None
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try:
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ret = self._serial.readline()
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except:
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self._log("Unexpected error while reading serial port: %s" % (getExceptionString()))
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self._errorValue = getExceptionString()
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self.close(True)
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return None
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if ret == '':
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#self._log("Recv: TIMEOUT")
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return ''
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self._log("Recv: %s" % (unicode(ret, 'ascii', 'replace').encode('ascii', 'replace').rstrip()))
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return ret
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def close(self, isError = False):
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if self._serial != None:
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self._serial.close()
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if isError:
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self._changeState(self.STATE_CLOSED_WITH_ERROR)
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else:
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self._changeState(self.STATE_CLOSED)
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self._serial = None
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def __del__(self):
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self.close()
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def _sendCommand(self, cmd):
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if self._serial == None:
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return
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self._log('Send: %s' % (cmd))
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try:
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#TODO: This can throw a write timeout exception, but we do not want timeout on writes. Find a fix for this.
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# Oddly enough, the write timeout is not even set and thus we should not get a write timeout.
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self._serial.write(cmd + '\n')
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except:
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self._log("Unexpected error while writing serial port: %s" % (getExceptionString()))
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self._errorValue = getExceptionString()
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self.close(True)
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def _sendNext(self):
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if self._gcodePos >= len(self._gcodeList):
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self._changeState(self.STATE_OPERATIONAL)
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return
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line = self._gcodeList[self._gcodePos]
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if type(line) is tuple:
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self._printSection = line[1]
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line = line[0]
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try:
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if line == 'M0' or line == 'M1':
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self.setPause(True)
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line = 'M105' #Don't send the M0 or M1 to the machine, as M0 and M1 are handled as an LCD menu pause.
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if self._printSection in self._feedRateModifier:
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line = re.sub('F([0-9]*)', lambda m: 'F' + str(int(int(m.group(1)) * self._feedRateModifier[self._printSection])), line)
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if ('G0' in line or 'G1' in line) and 'Z' in line:
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z = float(re.search('Z([0-9\.]*)', line).group(1))
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if self._currentZ != z:
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self._currentZ = z
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self._callback.mcZChange(z)
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except:
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self._log("Unexpected error: %s" % (getExceptionString()))
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checksum = reduce(lambda x,y:x^y, map(ord, "N%d%s" % (self._gcodePos, line)))
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self._sendCommand("N%d%s*%d" % (self._gcodePos, line, checksum))
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self._gcodePos += 1
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self._callback.mcProgress(self._gcodePos)
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def sendCommand(self, cmd):
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cmd = cmd.encode('ascii', 'replace')
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if self.isPrinting():
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self._commandQueue.put(cmd)
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elif self.isOperational():
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self._sendCommand(cmd)
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def printGCode(self, gcodeList):
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if not self.isOperational() or self.isPrinting():
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return
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self._gcodeList = gcodeList
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self._gcodePos = 0
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self._printSection = 'CUSTOM'
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self._changeState(self.STATE_PRINTING)
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for i in xrange(0, 6):
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self._sendNext()
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def cancelPrint(self):
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if self.isOperational():
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self._changeState(self.STATE_OPERATIONAL)
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def setPause(self, pause):
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if not pause and self.isPaused():
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self._changeState(self.STATE_PRINTING)
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for i in xrange(0, 6):
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self._sendNext()
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if pause and self.isPrinting():
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self._changeState(self.STATE_PAUSED)
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def setFeedrateModifier(self, type, value):
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self._feedRateModifier[type] = value
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def getExceptionString():
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locationInfo = traceback.extract_tb(sys.exc_info()[2])[0]
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return "%s: '%s' @ %s:%s:%d" % (str(sys.exc_info()[0].__name__), str(sys.exc_info()[1]), os.path.basename(locationInfo[0]), locationInfo[2], locationInfo[1])
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