def parse_cmd(binary_cmd):
code = binary_cmd[0] & 0x0000FFFF # lower 16 bits
param = binary_cmd[0] >> 16 # higher 16 bits
payload_mode = CmdMode(code & CmdMode.Mask)
if payload_mode == CmdMode.Payload32:
command = cmd1(code & CmdMode.CmdOpMask)
value = binary_cmd[1]
else:
command = cmd0(code & CmdMode.CmdOpMask)
value = param
return command, value
def deserialize_command_stream(blob):
assert isinstance(blob, bytes)
payload_bytes = struct.unpack("<{0}I".format(len(blob) // 4), blob)
cmms = []
# remove_header
payload_bytes = payload_bytes[8:]
idx = 0
while idx < len(payload_bytes):
cmd = []
code = payload_bytes[idx]
idx += 1
cmd.append(code)
payload_mode = CmdMode(code & CmdMode.Mask)
if payload_mode == CmdMode.Payload32:
value = payload_bytes[idx]
idx += 1
cmd.append(value)
cmms.append(cmd)
return cmms