lib/python/Components/FanControl.py

   1 import os
   2
   3 from Components.config import config, ConfigSubList, ConfigSubsection, ConfigSlider
   4 from Tools.BoundFunction import boundFunction
   5
   6 import NavigationInstance
   7 from enigma import iRecordableService
   8
   9 class FanControl:
  10         # ATM there's only support for one fan
  11         def __init__(self):
  12                 if os.path.exists("/proc/stb/fp/fan_vlt") or os.path.exists("/proc/stb/fp/fan_pwm") or os.path.exists("/proc/stb/fp/fan_speed"):
  13                         self.fancount = 1
  14                 else:
  15                         self.fancount = 0
  16                 self.createConfig()
  17                 config.misc.standbyCounter.addNotifier(self.standbyCounterChanged, initial_call = False)
  18
  19         def setVoltage_PWM(self):
  20                 for fanid in range(self.getFanCount()):
  21                         cfg = self.getConfig(fanid)
  22                         self.setVoltage(fanid, cfg.vlt.value)
  23                         self.setPWM(fanid, cfg.pwm.value)
  24                         print "[FanControl]: setting fan values: fanid = %d, voltage = %d, pwm = %d" % (fanid, cfg.vlt.value, cfg.pwm.value)
  25
  26         def setVoltage_PWM_Standby(self):
  27                 for fanid in range(self.getFanCount()):
  28                         cfg = self.getConfig(fanid)
  29                         self.setVoltage(fanid, cfg.vlt_standby.value)
  30                         self.setPWM(fanid, cfg.pwm_standby.value)
  31                         print "[FanControl]: setting fan values (standby mode): fanid = %d, voltage = %d, pwm = %d" % (fanid, cfg.vlt_standby.value, cfg.pwm_standby.value)
  32
  33         def getRecordEvent(self, recservice, event):
  34                 recordings = len(NavigationInstance.instance.getRecordings())
  35                 if event == iRecordableService.evEnd:
  36                         if recordings == 0:
  37                                 self.setVoltage_PWM_Standby()
  38                 elif event == iRecordableService.evStart:
  39                         if recordings == 1:
  40                                 self.setVoltage_PWM()
  41
  42         def leaveStandby(self):
  43                 NavigationInstance.instance.record_event.remove(self.getRecordEvent)
  44                 recordings = NavigationInstance.instance.getRecordings()
  45                 if not recordings:
  46                         self.setVoltage_PWM()
  47
  48         def standbyCounterChanged(self, configElement):
  49                 from Screens.Standby import inStandby
  50                 inStandby.onClose.append(self.leaveStandby)
  51                 recordings = NavigationInstance.instance.getRecordings()
  52                 NavigationInstance.instance.record_event.append(self.getRecordEvent)
  53                 if not recordings:
  54                         self.setVoltage_PWM_Standby()
  55
  56         def createConfig(self):
  57                 def setVlt(fancontrol, fanid, configElement):
  58                         fancontrol.setVoltage(fanid, configElement.value)
  59                 def setPWM(fancontrol, fanid, configElement):
  60                         fancontrol.setPWM(fanid, configElement.value)
  61
  62                 config.fans = ConfigSubList()
  63                 for fanid in range(self.getFanCount()):
  64                         fan = ConfigSubsection()
  65                         fan.vlt = ConfigSlider(default = 15, increment = 5, limits = (0, 255))
  66                         fan.pwm = ConfigSlider(default = 0, increment = 5, limits = (0, 255))
  67                         fan.vlt_standby = ConfigSlider(default = 5, increment = 5, limits = (0, 255))
  68                         fan.pwm_standby = ConfigSlider(default = 0, increment = 5, limits = (0, 255))
  69                         fan.vlt.addNotifier(boundFunction(setVlt, self, fanid))
  70                         fan.pwm.addNotifier(boundFunction(setPWM, self, fanid))
  71                         config.fans.append(fan)
  72
  73         def getConfig(self, fanid):
  74                 return config.fans[fanid]
  75
  76         def getFanCount(self):
  77                 return self.fancount
  78
  79         def hasRPMSensor(self, fanid):
  80                 return os.path.exists("/proc/stb/fp/fan_speed")
  81
  82         def hasFanControl(self, fanid):
  83                 return os.path.exists("/proc/stb/fp/fan_vlt") or os.path.exists("/proc/stb/fp/fan_pwm")
  84
  85         def getFanSpeed(self, fanid):
  86                 f = open("/proc/stb/fp/fan_speed", "r")
  87                 value = int(f.readline().strip()[:-4])
  88                 f.close()
  89                 return value
  90
  91         def getVoltage(self, fanid):
  92                 f = open("/proc/stb/fp/fan_vlt", "r")
  93                 value = int(f.readline().strip(), 16)
  94                 f.close()
  95                 return value
  96
  97         def setVoltage(self, fanid, value):
  98                 if value > 255:
  99                         return
 100                 f = open("/proc/stb/fp/fan_vlt", "w")
 101                 f.write("%x" % value)
 102                 f.close()
 103
 104         def getPWM(self, fanid):
 105                 f = open("/proc/stb/fp/fan_pwm", "r")
 106                 value = int(f.readline().strip(), 16)
 107                 f.close()
 108                 return value
 109
 110         def setPWM(self, fanid, value):
 111                 if value > 255:
 112                         return
 113                 f = open("/proc/stb/fp/fan_pwm", "w")
 114                 f.write("%x" % value)
 115                 f.close()
 116
 117 fancontrol = FanControl()