Source code for spinnman.messages.eieio.eieio_type
# Copyright (c) 2015 The University of Manchester
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from enum import Enum
[docs]class EIEIOType(Enum):
"""
Possible types of EIEIO packets.
"""
KEY_16_BIT = (0, 2, 0, "Indicates that data is keys which are 16 bits")
KEY_PAYLOAD_16_BIT = (
1, 2, 2, "Indicates that data is keys and payloads of 16 bits")
KEY_32_BIT = (2, 4, 0, "Indicates that data is keys of 32 bits")
KEY_PAYLOAD_32_BIT = (
3, 4, 4, "Indicates that data is keys and payloads of 32 bits")
def __new__(cls, value, key_bytes, payload_bytes, doc=""):
# pylint: disable=protected-access, unused-argument
obj = object.__new__(cls)
obj._value_ = value
return obj
def __init__(self, value, key_bytes, payload_bytes, doc=""):
self._value_ = value
self._key_bytes = key_bytes
self._payload_bytes = payload_bytes
self.__doc__ = doc
@property
def key_bytes(self):
"""
The number of bytes used by each key element.
:rtype: int
"""
return self._key_bytes
@property
def payload_bytes(self):
"""
The number of bytes used by each payload element.
:rtype: int
"""
return self._payload_bytes
@property
def max_value(self):
"""
The maximum value of the key or payload (if there is a payload).
:rtype: int
"""
return (1 << (self._key_bytes * 8)) - 1