"""
:author: Thomas Delaet <thomas@delaet.org>
"""
import struct
from velbus.message import Message
from velbus.command_registry import register_command
COMMAND_CODE = 0x6A
[docs]class WriteModuleAddressAndSerialNumberMessage(Message):
"""
send by:
received by: VMB4RYLD
"""
def __init__(self, address=None):
Message.__init__(self)
self.module_type = 0x00
self.current_serial = 0
self.module_address = 0x00
self.new_serial = 0
self.set_defaults(address)
[docs] def set_defaults(self, address):
if address is not None:
self.set_address(address)
self.set_firmware_priority()
self.set_no_rtr()
[docs] def populate(self, priority, address, rtr, data):
"""
:return: None
"""
assert isinstance(data, bytes)
self.needs_firmware_priority(priority)
self.needs_no_rtr(rtr)
self.needs_data(data, 6)
self.set_attributes(priority, address, rtr)
self.module_type = data[0]
prefix = bytes([0, 0])
(self.current_serial,) = struct.unpack(">L", prefix + data[1] + data[2])
self.module_address = data[3]
(self.new_serial,) = struct.unpack(">L", prefix + data[4] + data[5])
[docs] def data_to_binary(self):
"""
:return: bytes
"""
return (
chr(COMMAND_CODE)
+ chr(self.module_type)
+ struct.pack(">L", self.current_serial)[2:]
+ chr(self.module_address)
+ struct.pack(">L", self.new_serial)[2:]
)
register_command(COMMAND_CODE, WriteModuleAddressAndSerialNumberMessage)