fix get satlists for equal and linked NIMs
[enigma2.git] / lib / python / Components / NimManager.py
index ec7d46fe0f4d547c73bb3eb2133a2ec769d89f72..1b45159d6f24c84a9cb4e659735275a386538305 100644 (file)
@@ -1,4 +1,6 @@
-from config import config, ConfigSubsection, ConfigSelection, ConfigFloat, ConfigSatlist, ConfigYesNo, ConfigInteger, ConfigSubList, ConfigNothing, ConfigSubDict, ConfigOnOff, ConfigDateTime
+from config import config, ConfigSubsection, ConfigSelection, ConfigFloat, \
+       ConfigSatlist, ConfigYesNo, ConfigInteger, ConfigSubList, ConfigNothing, \
+       ConfigSubDict, ConfigOnOff, ConfigDateTime
 
 from enigma import eDVBSatelliteEquipmentControl as secClass, \
        eDVBSatelliteLNBParameters as lnbParam, \
@@ -7,12 +9,11 @@ from enigma import eDVBSatelliteEquipmentControl as secClass, \
        eDVBSatelliteRotorParameters as rotorParam, \
        eDVBResourceManager, eDVBDB
 
-#from xml.sax import make_parser
-#from xml.sax.handler import ContentHandler
-
 from time import localtime, mktime
 from datetime import datetime
 
+from sets import Set
+
 def getConfigSatlist(orbpos, satlist):
        default_orbpos = None
        for x in satlist:
@@ -29,14 +30,25 @@ def tryOpen(filename):
        return procFile
 
 class SecConfigure:
+       def getConfiguredSats(self):
+               return self.configuredSatellites
+
+       def addSatellite(self, sec, orbpos):
+               sec.addSatellite(orbpos)
+               self.configuredSatellites.add(orbpos)
+
        def addLNBSimple(self, sec, slotid, diseqcmode, toneburstmode = diseqcParam.NO, diseqcpos = diseqcParam.SENDNO, orbpos = 0, longitude = 0, latitude = 0, loDirection = 0, laDirection = 0, turningSpeed = rotorParam.FAST, useInputPower=True, inputPowerDelta=50):
+               if orbpos is None:
+                       return
                #simple defaults
                sec.addLNB()
                tunermask = 1 << slotid
                if self.equal.has_key(slotid):
-                       tunermask |= (1 << self.equal[slotid])
+                       for slot in self.equal[slotid]:
+                               tunermask |= (1 << slot)
                elif self.linked.has_key(slotid):
-                       tunermask |= (1 << self.linked[slotid])
+                       for slot in self.linked[slotid]:
+                               tunermask |= (1 << slot)
                sec.setLNBLOFL(9750000)
                sec.setLNBLOFH(10600000)
                sec.setLNBThreshold(11700000)
@@ -56,8 +68,7 @@ class SecConfigure:
                #print "set orbpos to:" + str(orbpos)
 
                if 0 <= diseqcmode < 3:
-                       sec.addSatellite(orbpos)
-                       self.satList.append(orbpos)
+                       self.addSatellite(sec, orbpos)
                elif (diseqcmode == 3): # diseqc 1.2
                        if self.satposdepends.has_key(slotid):
                                tunermask |= (1 << self.satposdepends[slotid])
@@ -71,12 +82,11 @@ class SecConfigure:
 
                        for x in self.NimManager.satList:
                                print "Add sat " + str(x[0])
-                               sec.addSatellite(int(x[0]))
+                               self.addSatellite(sec, int(x[0]))
                                sec.setVoltageMode(0)
                                sec.setToneMode(0)
                                sec.setRotorPosNum(0) # USALS
-                               self.satList.append(int(x[0]))
-
+               
                sec.setLNBSlotMask(tunermask)
 
        def setSatposDepends(self, sec, nim1, nim2):
@@ -86,15 +96,21 @@ class SecConfigure:
        def linkNIMs(self, sec, nim1, nim2):
                print "link tuner", nim1, "to tuner", nim2
                sec.setTunerLinked(nim1, nim2)
-
-       def getSatList(self):
-               return self.satList
+               
+       def getRoot(self, slotid, connto):
+               visited = []
+               while (self.NimManager.getNimConfig(connto).configMode.value in ["satposdepends", "equal", "loopthrough"]):
+                       connto = int(self.NimManager.getNimConfig(connto).connectedTo.value)
+                       if connto in visited: # prevent endless loop
+                               return slotid
+                       visited.append(connto)
+               return connto
 
        def update(self):
                sec = secClass.getInstance()
+               self.configuredSatellites = Set()
                sec.clear() ## this do unlinking NIMs too !!
                print "sec config cleared"
-               self.satList = []
 
                self.linked = { }
                self.satposdepends = { }
@@ -116,20 +132,30 @@ class SecConfigure:
                                # save what nim we link to/are equal to/satposdepends to.
                                # this is stored in the *value* (not index!) of the config list
                                if nim.configMode.value == "equal":
-                                       self.equal[int(nim.equalTo.value)]=x
+                                       connto = self.getRoot(x, int(nim.connectedTo.value))
+                                       if not self.equal.has_key(connto):
+                                               self.equal[connto] = []
+                                       self.equal[connto].append(x)
                                elif nim.configMode.value == "loopthrough":
-                                       self.linkNIMs(sec, x, int(nim.linkedTo.value))
-                                       self.linked[int(nim.linkedTo.value)]=x
+                                       self.linkNIMs(sec, x, int(nim.connectedTo.value))
+                                       connto = self.getRoot(x, int(nim.connectedTo.value))
+                                       if not self.linked.has_key(connto):
+                                               self.linked[connto] = []
+                                       self.linked[connto].append(x)
                                elif nim.configMode.value == "satposdepends":
-                                       self.setSatposDepends(sec, x, int(nim.satposDependsTo.value))
-                                       self.satposdepends[int(nim.satposDependsTo.value)]=x
+                                       self.setSatposDepends(sec, x, int(nim.connectedTo.value))
+                                       connto = self.getRoot(x, int(nim.connectedTo.value))
+                                       if not self.satposdepends.has_key(connto):
+                                               self.satposdepends[connto] = []
+                                       self.satposdepends[connto].append(x)
+                                       
 
                for slot in nim_slots:
                        x = slot.slot
                        nim = slot.config
                        if slot.isCompatible("DVB-S"):
                                print "slot: " + str(x) + " configmode: " + str(nim.configMode.value)
-                               print "diseqcmode: ", nim.configMode.value
+                               print "diseqcmode: ", nim.diseqcMode.value
                                if nim.configMode.value in [ "loopthrough", "satposdepends", "nothing" ]:
                                        pass
                                else:
@@ -201,9 +227,11 @@ class SecConfigure:
 
                                tunermask = 1 << slotid
                                if self.equal.has_key(slotid):
-                                       tunermask |= (1 << self.equal[slotid])
+                                       for slot in self.equal[slotid]:
+                                               tunermask |= (1 << slot)
                                elif self.linked.has_key(slotid):
-                                       tunermask |= (1 << self.linked[slotid])
+                                       for slot in self.linked[slotid]:
+                                               tunermask |= (1 << slot)
 
                                if currLnb.lof.value == "universal_lnb":
                                        sec.setLNBLOFL(9750000)
@@ -324,7 +352,7 @@ class SecConfigure:
 
                                # finally add the orbital positions
                                for y in lnbSat[x]:
-                                       sec.addSatellite(y)
+                                       self.addSatellite(sec, y)
                                        currSat = config.Nims[slotid].advanced.sat[y]
 
                                        if currSat.voltage.value == "polarization":
@@ -348,10 +376,11 @@ class SecConfigure:
 
        def __init__(self, nimmgr):
                self.NimManager = nimmgr
+               self.configuredSatellites = Set()
                self.update()
 
 class NIM(object):
-       def __init__(self, slot, type, description):
+       def __init__(self, slot, type, description, has_outputs = True, internally_connectable = None):
                self.slot = slot
 
                if type not in ["DVB-S", "DVB-C", "DVB-T", "DVB-S2", None]:
@@ -360,6 +389,8 @@ class NIM(object):
 
                self.type = type
                self.description = description
+               self.has_outputs = has_outputs
+               self.internally_connectable = internally_connectable
 
        def isCompatible(self, what):
                compatible = {
@@ -370,6 +401,15 @@ class NIM(object):
                                "DVB-S2": ["DVB-S", "DVB-S2", None]
                        }
                return what in compatible[self.type]
+       
+       def connectableTo(self):
+               connectable = {
+                               "DVB-S": ["DVB-S", "DVB-S2"],
+                               "DVB-C": ["DVB-C"],
+                               "DVB-T": ["DVB-T"],
+                               "DVB-S2": ["DVB-S", "DVB-S2"]
+                       }
+               return connectable[self.type]
 
        def getSlotName(self):
                # get a friendly description for a slot name.
@@ -381,6 +421,12 @@ class NIM(object):
 
        def getSlotID(self):
                return chr(ord('A') + self.slot)
+       
+       def hasOutputs(self):
+               return self.has_outputs
+       
+       def internallyConnectableTo(self):
+               return self.internally_connectable
 
        slot_id = property(getSlotID)
 
@@ -411,100 +457,8 @@ class NIM(object):
        empty = property(lambda self: self.type is None)
 
 class NimManager:
-#      class parseSats(ContentHandler):
-#              def __init__(self, satList, satellites, transponders):
-#                      self.isPointsElement, self.isReboundsElement = 0, 0
-#                      self.satList = satList
-#                      self.satellites = satellites
-#                      self.transponders = transponders
-#      
-#              def startElement(self, name, attrs):
-#                      if (name == "sat"):
-#                              #print "found sat " + attrs.get('name',"") + " " + str(attrs.get('position',""))
-#                              tpos = int(attrs.get('position',""))
-#                              if tpos < 0:
-#                                      tpos = 3600 + tpos
-#                              tname = attrs.get('name',"").encode("UTF-8")
-#                              tflags = int(attrs.get('flags', '0'))
-#                              self.satellites[tpos] = tname
-#                              self.satList.append( (tpos, tname, tflags) )
-#                              self.parsedSat = int(tpos)
-#                      elif (name == "transponder"):
-#                              modulation = int(attrs.get('modulation',"1")) # QPSK default
-#                              system = int(attrs.get('system',"0")) # DVB-S default
-#                              freq = int(attrs.get('frequency',""))
-#                              sr = int(attrs.get('symbol_rate',""))
-#                              pol = int(attrs.get('polarization',""))
-#                              fec = int(attrs.get('fec_inner',"0")) # AUTO default
-#                              if self.parsedSat in self.transponders:
-#                                      pass
-#                              else:
-#                                      self.transponders[self.parsedSat] = [ ]
-#
-#                              self.transponders[self.parsedSat].append((0, freq, sr, pol, fec, system, modulation))
-
-#      class parseCables(ContentHandler):
-#              def __init__(self, cablesList, transponders):
-#                      self.isPointsElement, self.isReboundsElement = 0, 0
-#                      self.cablesList = cablesList
-#                      for x in self.cablesList:
-#                              self.cablesList.remove(x)
-#                      self.transponders = transponders
-#      
-#              def startElement(self, name, attrs):
-#                      if (name == "cable"):
-#                              #print "found sat " + attrs.get('name',"") + " " + str(attrs.get('position',""))
-#                              tname = attrs.get('name',"").encode("UTF-8")
-#                              tflags = int(attrs.get('flags', '0'))
-#                              self.cablesList.append((tname, tflags))
-#                              self.parsedCab = tname
-#                      elif (name == "transponder"):
-#                              freq = int(attrs.get('frequency',""))
-#                              while freq > 999999:
-#                                      freq /= 10
-#                              sr = int(attrs.get('symbol_rate',"0"))
-#                              mod = int(attrs.get('modulation',"3")) # QAM64 default
-#                              fec = int(attrs.get('fec_inner',"0")) # AUTO default
-#                              if self.parsedCab in self.transponders:
-#                                      pass
-#                              else:
-#                                      self.transponders[self.parsedCab] = [ ]
-#                              self.transponders[self.parsedCab].append((1, freq, sr, mod, fec))
-#
-#      class parseTerrestrials(ContentHandler):
-#              def __init__(self, terrestrialsList, transponders):
-#                      self.isPointsElement, self.isReboundsElement = 0, 0
-#                      self.terrestrialsList = terrestrialsList
-#                      self.transponders = transponders
-#      
-#              def startElement(self, name, attrs):
-#                      if (name == "terrestrial"):
-#                              #print "found sat " + attrs.get('name',"") + " " + str(attrs.get('position',""))
-#                              tname = attrs.get('name',"").encode("UTF-8")
-#                              tflags = int(attrs.get('flags', '0'))
-#                              self.terrestrialsList.append((tname, tflags))
-#                              self.parsedTer = str(tname)
-#                      elif (name == "transponder"):
-#                              # TODO finish this!
-#                              freq = int(attrs.get('centre_frequency',""))
-#                              bw = int(attrs.get('bandwidth',"3")) # AUTO
-#                              const = int(attrs.get('constellation',"1")) # AUTO
-#                              crh = int(attrs.get('code_rate_hp',"5")) # AUTO
-#                              if crh > 5: # our terrestrial.xml is buggy... 6 for AUTO
-#                                      crh = 5
-#                              crl = int(attrs.get('code_rate_lp',"5")) # AUTO
-#                              if crl > 5: # our terrestrial.xml is buggy... 6 for AUTO
-#                                      crl = 5
-#                              guard = int(attrs.get('guard_interval',"4")) # AUTO
-#                              transm = int(attrs.get('transmission_mode',"2")) # AUTO
-#                              hierarchy = int(attrs.get('hierarchy_information',"4")) # AUTO
-#                              inv = int(attrs.get('inversion',"2")) # AUTO
-#                              if self.parsedTer in self.transponders:
-#                                      pass
-#                              else:
-#                                      self.transponders[self.parsedTer] = [ ]
-#
-#                              self.transponders[self.parsedTer].append((2, freq, bw, const, crh, crl, guard, transm, hierarchy, inv))
+       def getConfiguredSats(self):
+               return self.sec.getConfiguredSats()
 
        def getTransponders(self, pos):
                if self.transponders.has_key(pos):
@@ -533,9 +487,6 @@ class NimManager:
        def getTerrestrialFlags(self, nim):
                return self.terrestrialsList[config.Nims[nim].terrestrial.index][1]
 
-       def getConfiguredSats(self):
-               return self.sec.getSatList()
-
        def getSatDescription(self, pos):
                return self.satellites[pos]
 
@@ -547,13 +498,8 @@ class NimManager:
                self.transponderscable = { }
                self.transpondersterrestrial = { }
                db = eDVBDB.getInstance()
-
-#              parser = make_parser()
                if self.hasNimType("DVB-S"):
                        print "Reading satellites.xml"
-#                      satHandler = self.parseSats(self.satList, self.satellites, self.transponders)
-#                      parser.setContentHandler(satHandler)
-#                      parser.parse('/etc/tuxbox/satellites.xml')
                        db.readSatellites(self.satList, self.satellites, self.transponders)
 #                      print "SATLIST", self.satList
 #                      print "SATS", self.satellites
@@ -561,18 +507,12 @@ class NimManager:
 
                if self.hasNimType("DVB-C"):
                        print "Reading cables.xml"
-#                      cabHandler = self.parseCables(self.cablesList, self.transponderscable)
-#                      parser.setContentHandler(cabHandler)
-#                      parser.parse('/etc/tuxbox/cables.xml')
                        db.readCables(self.cablesList, self.transponderscable)
 #                      print "CABLIST", self.cablesList
 #                      print "TRANSPONDERS", self.transponders
 
                if self.hasNimType("DVB-T"):
                        print "Reading terrestrial.xml"
-#                      terHandler = self.parseTerrestrials(self.terrestrialsList, self.transpondersterrestrial)
-#                      parser.setContentHandler(terHandler)
-#                      parser.parse('/etc/tuxbox/terrestrial.xml')
                        db.readTerrestrials(self.terrestrialsList, self.transpondersterrestrial)
 #                      print "TERLIST", self.terrestrialsList
 #                      print "TRANSPONDERS", self.transpondersterrestrial
@@ -597,6 +537,9 @@ class NimManager:
                #
                # Type will be either "DVB-S", "DVB-S2", "DVB-T", "DVB-C" or None.
 
+               # nim_slots is an array which has exactly one entry for each slot, even for empty ones.
+               self.nim_slots = [ ]
+
                nimfile = tryOpen("/proc/bus/nim_sockets")
 
                if nimfile is None:
@@ -616,25 +559,38 @@ class NimManager:
                                entries[current_slot]["type"] = str(line.strip()[6:])
                        elif line.strip().startswith("Name:"):
                                entries[current_slot]["name"] = str(line.strip()[6:])
+                       elif line.strip().startswith("Has_Outputs:"):
+                               input = str(line.strip()[len("Has_Outputs:") + 1:])
+                               entries[current_slot]["has_outputs"] = (input == "yes")
+                       elif line.strip().startswith("Internally_Connectable:"):
+                               input = int(line.strip()[len("Internally_Connectable:") + 1:])
+                               entries[current_slot]["internally_connectable"] = input 
                        elif line.strip().startswith("empty"):
                                entries[current_slot]["type"] = None
                                entries[current_slot]["name"] = _("N/A")
                nimfile.close()
                
-               # nim_slots is an array which has exactly one entry for each slot, even for empty ones.
-               self.nim_slots = [ ]
-
                for id, entry in entries.items():
                        if not (entry.has_key("name") and entry.has_key("type")):
                                entry["name"] =  _("N/A")
                                entry["type"] = None
-                       self.nim_slots.append(NIM(slot = id, description = entry["name"], type = entry["type"]))
+                       if not (entry.has_key("has_outputs")):
+                               entry["has_outputs"] = True
+                       if not (entry.has_key("internally_connectable")):
+                               entry["internally_connectable"] = None
+                       self.nim_slots.append(NIM(slot = id, description = entry["name"], type = entry["type"], has_outputs = entry["has_outputs"], internally_connectable = entry["internally_connectable"]))
 
        def hasNimType(self, chktype):
                for slot in self.nim_slots:
                        if slot.isCompatible(chktype):
                                return True
                return False
+       
+       def getNimType(self, slotid):
+               return self.nim_slots[slotid].type
+       
+       def getNimDescription(self, slotid):
+               return self.nim_slots[slotid].friendly_full_description
 
        def getNimListOfType(self, type, exception = -1):
                # returns a list of indexes for NIMs compatible to the given type, except for 'exception'
@@ -658,6 +614,64 @@ class NimManager:
                for slot in self.nim_slots:
                        list.append(slot.friendly_full_description)
                return list
+       
+       def getSlotCount(self):
+               return len(self.nim_slots)
+       
+       def hasOutputs(self, slotid):
+               return self.nim_slots[slotid].hasOutputs()
+       
+       def canConnectTo(self, slotid):
+               slots = []
+               if self.nim_slots[slotid].internallyConnectableTo() is not None:
+                       slots.append(self.nim_slots[slotid].internallyConnectableTo())
+               for type in self.nim_slots[slotid].connectableTo(): 
+                       for slot in self.getNimListOfType(type, exception = slotid):
+                               if self.hasOutputs(slot):
+                                       slots.append(slot)
+               # remove nims, that have a conntectedTo reference on
+               for testnim in slots[:]:
+                       for nim in self.getNimListOfType("DVB-S", slotid):
+                               nimConfig = self.getNimConfig(nim)
+                               if nimConfig.content.items.has_key("configMode") and nimConfig.configMode.value == "loopthrough" and int(nimConfig.connectedTo.value) == testnim:
+                                       slots.remove(testnim)
+                                       break 
+               slots.sort()
+               
+               return slots
+       
+       def canEqualTo(self, slotid):
+               type = self.getNimType(slotid)
+               if self.getNimConfig(slotid) == "DVB-S2":
+                       type = "DVB-S"
+               nimList = self.getNimListOfType(type, slotid)
+               for nim in nimList[:]:
+                       mode = self.getNimConfig(nim)
+                       if mode.configMode.value == "loopthrough" or mode.configMode.value == "satposdepends":
+                               nimList.remove(nim)
+               return nimList
+       
+       def canDependOn(self, slotid):
+               type = self.getNimType(slotid)
+               if self.getNimConfig(slotid) == "DVB-S2":
+                       type = "DVB-S"
+               nimList = self.getNimListOfType(type, slotid)
+               positionerList = []
+               for nim in nimList[:]:
+                       mode = self.getNimConfig(nim)
+                       if mode.configMode.value == "simple" and mode.diseqcMode.value == "positioner":
+                               alreadyConnected = False
+                               for testnim in nimList:
+                                       testmode = self.getNimConfig(testnim)
+                                       if testmode.configMode.value == "satposdepends" and int(testmode.connectedTo.value) == int(nim):
+                                               alreadyConnected = True
+                                               break
+                               if not alreadyConnected:
+                                       positionerList.append(nim)
+               return positionerList
+       
+       def getNimConfig(self, slotid):
+               return config.Nims[slotid]
 
        def getSatList(self):
                return self.satList
@@ -665,40 +679,44 @@ class NimManager:
        def getSatListForNim(self, slotid):
                list = []
                if self.nim_slots[slotid].isCompatible("DVB-S"):
+                       nim = config.Nims[slotid]
                        #print "slotid:", slotid
 
                        #print "self.satellites:", self.satList[config.Nims[slotid].diseqcA.index]
                        #print "diseqcA:", config.Nims[slotid].diseqcA.value
-                       configMode = config.Nims[slotid].configMode.value
+                       configMode = nim.configMode.value
 
                        if configMode == "equal":
-                               slotid=0 #FIXME add handling for more than two tuners !!!
-                               configMode = config.Nims[slotid].configMode.value
+                               slotid = int(nim.connectedTo.value)
+                               nim = config.Nims[slotid]
+                               configMode = nim.configMode.value
+                       elif configMode == "loopthrough":
+                               slotid = self.sec.getRoot(slotid, int(nim.connectedTo.value))
+                               nim = config.Nims[slotid]
+                               configMode = nim.configMode.value
 
                        if configMode == "simple":
-                               dm = config.Nims[slotid].diseqcMode.value
+                               dm = nim.diseqcMode.value
                                if dm in ["single", "toneburst_a_b", "diseqc_a_b", "diseqc_a_b_c_d"]:
-                                       list.append(self.satList[config.Nims[slotid].diseqcA.index])
+                                       list.append(self.satList[nim.diseqcA.index])
                                if dm in ["toneburst_a_b", "diseqc_a_b", "diseqc_a_b_c_d"]:
-                                       list.append(self.satList[config.Nims[slotid].diseqcB.index])
+                                       list.append(self.satList[nim.diseqcB.index])
                                if dm == "diseqc_a_b_c_d":
-                                       list.append(self.satList[config.Nims[slotid].diseqcC.index])
-                                       list.append(self.satList[config.Nims[slotid].diseqcD.index])
+                                       list.append(self.satList[nim.diseqcC.index])
+                                       list.append(self.satList[nim.diseqcD.index])
                                if dm == "positioner":
                                        for x in self.satList:
                                                list.append(x)
                        elif configMode == "advanced":
                                for x in self.satList:
-                                       if int(config.Nims[slotid].advanced.sat[x[0]].lnb.value) != 0:
+                                       if int(nim.advanced.sat[x[0]].lnb.value) != 0:
                                                list.append(x)
-               
                return list
 
        def getRotorSatListForNim(self, slotid):
                list = []
                if self.nim_slots[slotid].isCompatible("DVB-S"):
                        #print "slotid:", slotid
-
                        #print "self.satellites:", self.satList[config.Nims[slotid].diseqcA.value]
                        #print "diseqcA:", config.Nims[slotid].diseqcA.value
                        configMode = config.Nims[slotid].configMode.value
@@ -763,7 +781,7 @@ def InitSecParams():
        x.addNotifier(lambda configElement: secClass.setParam(secClass.DELAY_AFTER_VOLTAGE_CHANGE_BEFORE_MOTOR_CMD, configElement.value))
        config.sec.delay_after_voltage_change_before_motor_command = x
 
-       x = ConfigInteger(default=120, limits = (0, 9999))
+       x = ConfigInteger(default=360, limits = (0, 9999))
        x.addNotifier(lambda configElement: secClass.setParam(secClass.MOTOR_RUNNING_TIMEOUT, configElement.value))
        config.sec.motor_running_timeout = x
 
@@ -792,43 +810,32 @@ def InitNimManager(nimmgr):
                x = slot.slot
                nim = config.Nims[x]
                
-               # HACK: currently, we can only looptrough to socket A
-
                if slot.isCompatible("DVB-S"):
-                       if slot.slot == 0:
-                               nim.configMode = ConfigSelection(
-                                       choices = {
-                                               "simple": _("simple"),
-                                               "advanced": _("advanced"),
-                                               "nothing": _("nothing connected"),
-                                               },
-                                       default = "simple")
-                       else:
-                               nim.configMode = ConfigSelection(
-                                       choices = {
-                                               "equal": _("equal to Socket A"),
-                                               "loopthrough": _("loopthrough to socket A"),
-                                               "nothing": _("nothing connected"),
-                                               "satposdepends": _("second cable of motorized LNB"),
-                                               "simple": _("simple"),
-                                               "advanced": _("advanced")},
-                                       default = "loopthrough")
+                       choices = { "nothing": _("nothing connected"),
+                                       "simple": _("simple"),
+                                       "advanced": _("advanced")}
+                       if len(nimmgr.getNimListOfType(slot.type, exception = x)) > 0:
+                               choices["equal"] = _("equal to")
+                               choices["satposdepends"] = _("second cable of motorized LNB")
+                       if len(nimmgr.canConnectTo(x)) > 0:
+                               choices["loopthrough"] = _("loopthrough to")
+                       nim.configMode = ConfigSelection(choices = choices, default = "nothing")
 
                        #important - check if just the 2nd one is LT only and the first one is DVB-S
                        # CHECKME: is this logic correct for >2 slots?
-                       if nim.configMode.value in ["loopthrough", "satposdepends", "equal"]:
-                               if x == 0: # first one can never be linked to anything
-                                       # reset to simple
-                                       nim.configMode.value = "simple"
-                                       nim.configMode.save()
-                               else:
+#                      if nim.configMode.value in ["loopthrough", "satposdepends", "equal"]:
+#                              if x == 0: # first one can never be linked to anything
+#                                      # reset to simple
+#                                      nim.configMode.value = "simple"
+#                                      nim.configMode.save()
+#                              else:
                                        #FIXME: make it better
-                                       for y in nimmgr.nim_slots:
-                                               if y.slot == 0:
-                                                       if not y.isCompatible("DVB-S"):
-                                                               # reset to simple
-                                                               nim.configMode.value = "simple"
-                                                               nim.configMode.save()
+                       for y in nimmgr.nim_slots:
+                               if y.slot == 0:
+                                       if not y.isCompatible("DVB-S"):
+                                               # reset to simple
+                                               nim.configMode.value = "simple"
+                                               nim.configMode.save()
 
                        nim.diseqcMode = ConfigSelection(
                                choices = [
@@ -839,6 +846,11 @@ def InitNimManager(nimmgr):
                                        ("positioner", _("Positioner"))],
                                default = "diseqc_a_b")
 
+                       choices = []
+                       for id in nimmgr.getNimListOfType("DVB-S"):
+                               if id != x:
+                                       choices.append((str(id), nimmgr.getNimDescription(id)))
+                       nim.connectedTo = ConfigSelection(choices = choices)
                        nim.diseqcA = getConfigSatlist(192, nimmgr.satList)
                        nim.diseqcB = getConfigSatlist(130, nimmgr.satList)
                        nim.diseqcC = ConfigSatlist(list = nimmgr.satList)
@@ -859,19 +871,6 @@ def InitNimManager(nimmgr):
                        nim.fastTurningBegin = ConfigDateTime(default = mktime(btime.timetuple()), formatstring = _("%H:%M"), increment = 900)
                        etime = datetime(1970, 1, 1, 19, 0);
                        nim.fastTurningEnd = ConfigDateTime(default = mktime(etime.timetuple()), formatstring = _("%H:%M"), increment = 900)
-                       # get other frontends of the same type
-
-                       satNimList = nimmgr.getNimListOfType("DVB-S", slot.slot)
-                       satNimListNames = {}
-
-                       for x in satNimList:
-                               n = nimmgr.nim_slots[x]
-                               satNimListNames["%d" % n.slot] = n.friendly_full_description
-
-                       if len(satNimListNames):
-                               nim.equalTo = ConfigSelection(choices = satNimListNames)
-                               nim.linkedTo = ConfigSelection(choices = satNimListNames)
-                               nim.satposDependsTo = ConfigSelection(choices = satNimListNames)
 
                        # advanced config:
                        nim.advanced = ConfigSubsection()
@@ -950,8 +949,8 @@ def InitNimManager(nimmgr):
                        possible_scan_types = [("bands", _("Frequency bands")), ("steps", _("Frequency steps"))]
                        if n:
                                possible_scan_types.append(("provider", _("Provider")))
+                               nim.cable.scan_provider = ConfigSelection(default = "0", choices = list)
                        nim.cable.scan_type = ConfigSelection(default = "bands", choices = possible_scan_types)
-                       nim.cable.scan_provider = ConfigSelection(default = "0", choices = list)
                        nim.cable.scan_band_EU_VHF_I = ConfigYesNo(default = True)
                        nim.cable.scan_band_EU_MID = ConfigYesNo(default = True)
                        nim.cable.scan_band_EU_VHF_III = ConfigYesNo(default = True)