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annotate light8/io.py @ 134:f2f73a2171e6

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many adjustments to the loops and timing many adjustments to the loops and timing now sends the hardware updates only when clients change, but at least 1Hz new option to adjust the rate of the loop that considers sending changes (if the lights have changed)
author drewp
date Sat, 14 Jun 2003 14:59:09 +0000
parents 0459cecf8145
children
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3 class BaseIO:
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4 def __init__(self):
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5 self.dummy=1
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6 self.__name__ = 'BaseIO'
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7 # please override and set __name__ to your class name
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9 def golive(self):
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10 """call this if you want to promote the dummy object becomes a live object"""
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11 print "IO: %s is going live" % self.__name__
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12 self.dummy=0
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13 # you'd override with additional startup stuff here,
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14 # perhaps even loading a module and saving it to a class
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15 # attr so the subclass-specific functions can use it
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16
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17 def godummy(self):
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18 print "IO: %s is going dummy" % self.__name__
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19 self.dummy=1
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20 # you might override this to close ports, etc
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21
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22 def isdummy(self):
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23 return self.dummy
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24
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25 def __repr__(self):
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26 if self.dummy:
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27 return "<dummy %s instance>" % self.__name__
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28 else:
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29 return "<live %s instance>" % self.__name__
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30
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31 # the derived class will have more methods to do whatever it does,
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32 # and they should return dummy values if self.dummy==1.
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33
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34 class ParportDMX(BaseIO):
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35 def __init__(self, dimmers=68):
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36 BaseIO.__init__(self)
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37 self.__name__='ParportDMX'
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38 self.dimmers = dimmers
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40 def golive(self):
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41 BaseIO.golive(self)
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42 import parport
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43 self.parport = parport
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44 self.parport.getparport()
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45
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46 def sendlevels(self, levels):
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47 if self.dummy:
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48 return
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49
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50 levels = list(levels) + [0]
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51 # if levels[14] > 0: levels[14] = 100 # non-dim
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52 self.parport.outstart()
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53 for p in range(1, self.dimmers + 2):
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54 self.parport.outbyte(levels[p-1]*255 / 100)
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55
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56 class SerialPots(BaseIO):
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57 """
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58 this is a dummy object (that returns zeros forever) until you call startup()
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59 which makes it bind to the port, etc
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61 """
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62 def __init__(self):
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63 # no init here- call getport() to actually initialize
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64 self.dummy=1
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65 self.__name__='SerialPots' # i thought this was automatic!
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66
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67 def golive(self):
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68 """
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69 ls -l /dev/i2c-0
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70 crw-rw-rw- 1 root root 89, 0 Jul 11 12:27 /dev/i2c-0
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71 """
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72 import serport
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73 self.serport = serport
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75 self.f = open("/dev/i2c-0","rw")
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77 # this is for a chip with A0,A1,A2 lines all low:
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78 port = 72
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80 from fcntl import *
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82 I2C_SLAVE = 0x0703 #/* Change slave address */
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83 ioctl(self.f,I2C_SLAVE,port)
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84 self.dummy=0
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86 def godummy(self):
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87 BaseIO.godummy(self)
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88 self.f.close()
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90 def getlevels(self):
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91 if self.dummy:
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92 return (0,0,0,0)
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93 else:
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94 return self.serport.read_all_adc(self.f.fileno())
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97 if __name__=='__main__':
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98
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99 """ tester program that just dumps levels for a while """
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100 from time import sleep
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101 from serport import *
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102
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103 i=0
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104 while i<100:
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105 sleep(.033)
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106 i=i+1
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107
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108 print read_all_adc(f.fileno())
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