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17 lines
500 B
Python
17 lines
500 B
Python
# decode a Prime pdev number on the command line
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import sys
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if len(sys.argv) < 2:
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raise Exception, 'Usage: smad <Prime physical device number>'
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pdev = int(sys.argv[1], 8)
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if not (pdev & 0x10):
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raise Exception, 'Not a valid pdev'
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cont = (pdev & 0xE0) >> 5
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print 'Controller %d @ \'%d' % (cont, [24, 26, 25, 22, 45, 27, 46, 23][cont])
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print 'Unit %d' % ((pdev & 0xf) >> 1)
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print 'Head offset %d' % ((pdev >> 12) * 2)
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print 'Surfaces %d' % (((pdev >> 7) & 0x1E) + (pdev & 1))
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