def check_serial_state (tries):
# Read EEPROM as we can have unlimited reads
# It adds a few seconds to boot up, but makes sure serial is there
bplane = read_eeprom_serial.backplane()
if bplane.read_eeprom_content() == FAIL:
print "Unable to read EEPROM content"
return FAIL
# Check if EEPROM present in ID 3
serial = bplane.get_serial_eeprom()
if serial == '':
if set_serial(bplane) == FAIL:
print "Could not write to the EEPROM"
tries = int(tries) + 1
update_attempt_counter(tries)
return FAIL
else:
# Serial updated just create the file and set attempts
print "Set the serial in the EEPROM"
else:
# If the file is ever deleted, create the file since serial is present
print "Serial %s is already set in the system" % serial
tries = "SET"
if update_attempt_counter(tries) == FAIL:
return FAIL
return PASS
def main():
if len(sys.argv) < 2 or len(sys.argv) > 3:
usage()
sys.exit(1)
elif '--get-serial' == sys.argv[1]:
bplane = read_eeprom_serial.backplane()
if bplane.read_eeprom_content():
sys.exit(1)
print bplane.get_serial_eeprom()
elif '--set-serial' == sys.argv[1]:
if len(sys.argv) < 3:
usage()
sys.exit(1)
serial = sys.argv[2]
bplane = read_eeprom_serial.backplane()
if bplane.read_eeprom_content():
sys.exit(1)
eeprom_ser = bplane.get_serial_eeprom()
orig_line = bplane.orig_line
rvbd_sec = bplane.rvbd_sec
if "" == eeprom_ser:
set_eeprom_state("RW")
write_eeprom_content(serial, orig_line, rvbd_sec, False)
set_eeprom_state("RO")
elif serial != eeprom_ser:
set_eeprom_state("RW")
write_eeprom_content(serial, orig_line, rvbd_sec, True)
set_eeprom_state("RO")
else:
# EEPROM content is fine, move on
sys.exit(0)
else:
usage()
sys.exit(0)