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
  15         def createConfig(self):
  16                 def setVlt(fancontrol, fanid, configElement):
  17                         fancontrol.setVoltage(fanid, configElement.value)
  18                 def setPWM(fancontrol, fanid, configElement):
  19                         fancontrol.setPWM(fanid, configElement.value)
  20
  21                 config.fans = ConfigSubList()
  22                 for fanid in range(self.getFanCount()):
  23                         fan = ConfigSubsection()
  24                         fan.vlt = ConfigSlider(default = 16, increment = 5, limits = (0, 255))
  25                         fan.pwm = ConfigSlider(default = 0, increment = 5, limits = (0, 255))
  26                         fan.vlt.addNotifier(boundFunction(setVlt, self, fanid))
  27                         fan.pwm.addNotifier(boundFunction(setPWM, self, fanid))
  28                         config.fans.append(fan)
  29
  30         def getConfig(self, fanid):
  31                 return config.fans[fanid]
  32
  33         def getFanCount(self):
  34                 return self.fancount
  35
  36         def hasRPMSensor(self, fanid):
  37                 return os.path.exists("/proc/stb/fp/fan_speed")
  38
  39         def hasFanControl(self, fanid):
  40                 return os.path.exists("/proc/stb/fp/fan_vlt") or os.path.exists("/proc/stb/fp/fan_pwm")
  41
  42         def getFanSpeed(self, fanid):
  43                 f = open("/proc/stb/fp/fan_speed", "r")
  44                 value = int(f.readline().strip()[:-4])
  45                 f.close()
  46                 return value
  47
  48         def getVoltage(self, fanid):
  49                 f = open("/proc/stb/fp/fan_vlt", "r")
  50                 value = int(f.readline().strip(), 16)
  51                 f.close()
  52                 return value
  53
  54         def setVoltage(self, fanid, value):
  55                 if value > 255:
  56                         return
  57                 f = open("/proc/stb/fp/fan_vlt", "w")
  58                 f.write("%x" % value)
  59                 f.close()
  60
  61         def getPWM(self, fanid):
  62                 f = open("/proc/stb/fp/fan_pwm", "r")
  63                 value = int(f.readline().strip(), 16)
  64                 f.close()
  65                 return value
  66
  67         def setPWM(self, fanid, value):
  68                 if value > 255:
  69                         return
  70                 f = open("/proc/stb/fp/fan_pwm", "w")
  71                 f.write("%x" % value)
  72                 f.close()
  73
  74 fancontrol = FanControl()