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 class FanControl:
   7         # ATM there's only support for one fan
   8         def __init__(self):
   9                 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"):
  10                         self.fancount = 1
  11                 else:
  12                         self.fancount = 0
  13                 self.createConfig()
  14                 config.misc.standbyCounter.addNotifier(self.standbyCounterChanged, initial_call = False)
  15
  16         def leaveStandby(self):
  17                 for fanid in range(self.getFanCount()):
  18                         cfg = self.getConfig(fanid)
  19                         self.setVoltage(fanid, cfg.vlt.value)
  20                         self.setPWM(fanid, cfg.pwm.value)
  21
  22         def standbyCounterChanged(self, configElement):
  23                 from Screens.Standby import inStandby
  24                 inStandby.onClose.append(self.leaveStandby)
  25                 for fanid in range(self.getFanCount()):
  26                         self.setVoltage(fanid, 0)
  27                         self.setPWM(fanid, 0)
  28
  29         def createConfig(self):
  30                 def setVlt(fancontrol, fanid, configElement):
  31                         fancontrol.setVoltage(fanid, configElement.value)
  32                 def setPWM(fancontrol, fanid, configElement):
  33                         fancontrol.setPWM(fanid, configElement.value)
  34
  35                 config.fans = ConfigSubList()
  36                 for fanid in range(self.getFanCount()):
  37                         fan = ConfigSubsection()
  38                         fan.vlt = ConfigSlider(default = 16, increment = 5, limits = (0, 255))
  39                         fan.pwm = ConfigSlider(default = 0, increment = 5, limits = (0, 255))
  40                         fan.vlt.addNotifier(boundFunction(setVlt, self, fanid))
  41                         fan.pwm.addNotifier(boundFunction(setPWM, self, fanid))
  42                         config.fans.append(fan)
  43
  44         def getConfig(self, fanid):
  45                 return config.fans[fanid]
  46
  47         def getFanCount(self):
  48                 return self.fancount
  49
  50         def hasRPMSensor(self, fanid):
  51                 return os.path.exists("/proc/stb/fp/fan_speed")
  52
  53         def hasFanControl(self, fanid):
  54                 return os.path.exists("/proc/stb/fp/fan_vlt") or os.path.exists("/proc/stb/fp/fan_pwm")
  55
  56         def getFanSpeed(self, fanid):
  57                 f = open("/proc/stb/fp/fan_speed", "r")
  58                 value = int(f.readline().strip()[:-4])
  59                 f.close()
  60                 return value
  61
  62         def getVoltage(self, fanid):
  63                 f = open("/proc/stb/fp/fan_vlt", "r")
  64                 value = int(f.readline().strip(), 16)
  65                 f.close()
  66                 return value
  67
  68         def setVoltage(self, fanid, value):
  69                 if value > 255:
  70                         return
  71                 f = open("/proc/stb/fp/fan_vlt", "w")
  72                 f.write("%x" % value)
  73                 f.close()
  74
  75         def getPWM(self, fanid):
  76                 f = open("/proc/stb/fp/fan_pwm", "r")
  77                 value = int(f.readline().strip(), 16)
  78                 f.close()
  79                 return value
  80
  81         def setPWM(self, fanid, value):
  82                 if value > 255:
  83                         return
  84                 f = open("/proc/stb/fp/fan_pwm", "w")
  85                 f.write("%x" % value)
  86                 f.close()
  87
  88 fancontrol = FanControl()