33 lines
874 B
Plaintext
33 lines
874 B
Plaintext
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#!/usr/bin/python
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import sys
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import os
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import struct
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PORT_RES = '/dev/port'
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POWER_CYCLE = '/tmp/powercycle'
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def portio_reg_write(resource, offset, val):
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fd = os.open(resource, os.O_RDWR)
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if(fd < 0):
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print 'file open failed %s" % resource'
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return
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if(os.lseek(fd, offset, os.SEEK_SET) != offset):
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print 'lseek failed on %s' % resource
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return
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ret = os.write(fd, struct.pack('B', val))
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if(ret != 1):
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print 'write failed %d' % ret
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return
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os.close(fd)
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if __name__ == "__main__":
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# power-cycle the switch
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if os.path.exists(POWER_CYCLE):
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print "CPLD upgrade detected. Power-cycling the unit.."
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os.system('io_rd_wr.py --set --val 05 --offset 210; io_rd_wr.py --set --val 00 --offset 211; io_rd_wr.py --set --val 03 --offset 213')
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portio_reg_write(PORT_RES, 0xcf9, 0xe)
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