Source code for spinnman.messages.scp.impl.iptag_get

# Copyright (c) 2017-2019 The University of Manchester
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <>.

from spinn_utilities.overrides import overrides
from spinnman.messages.scp import SCPRequestHeader
from spinnman.messages.scp.abstract_messages import (
    AbstractSCPRequest, AbstractSCPResponse)
from spinnman.messages.scp.enums import SCPCommand, SCPResult
from spinnman.messages.sdp import SDPFlag, SDPHeader
from spinnman.exceptions import SpinnmanUnexpectedResponseCodeException

import struct


_IPTAG_FORMAT = struct.Struct("<4s6s3HIH3B")

[docs]class IPTagGet(AbstractSCPRequest): """ An SCP Request to get an IP tag """ __slots__ = [] def __init__(self, x, y, tag): """ :param int x: The x-coordinate of a chip, between 0 and 255 :param int y: The y-coordinate of a chip, between 0 and 255 :param int tag: The tag to get details of, between 0 and 7 :param int tag: The tag, between 0 and 7 """ super().__init__( SDPHeader( flags=SDPFlag.REPLY_EXPECTED, destination_port=0, destination_cpu=0, destination_chip_x=x, destination_chip_y=y), SCPRequestHeader(command=SCPCommand.CMD_IPTAG), argument_1=(_IPTAG_GET << 16) | tag, argument_2=1)
[docs] @overrides(AbstractSCPRequest.get_scp_response) def get_scp_response(self): return _SCPIPTagGetResponse()
class _SCPIPTagGetResponse(AbstractSCPResponse): """ An SCP response to a request for an IP tags """ __slots__ = [ "_count", "_flags", "_ip_address", "_mac_address", "_port", "_rx_port", "_spin_chip_x", "_spin_chip_y", "_spin_cpu", "_spin_port", "_timeout"] def __init__(self): """ """ super().__init__() self._ip_address = None self._mac_address = None self._port = None self._timeout = None self._flags = None self._count = None self._rx_port = None self._spin_chip_y = None self._spin_chip_x = None self._spin_cpu = None self._spin_port = None @overrides(AbstractSCPResponse.read_data_bytestring) def read_data_bytestring(self, data, offset): result = self.scp_response_header.result if result != SCPResult.RC_OK: raise SpinnmanUnexpectedResponseCodeException( "Get IP Tag Info", "CMD_IPTAG", (ip_address, mac_address, self._port, self._timeout, self._flags, self._count, self._rx_port, self._spin_chip_y, self._spin_chip_x, processor_and_port) = _IPTAG_FORMAT.unpack_from( data, offset) self._ip_address = bytearray(ip_address) self._mac_address = bytearray(mac_address) self._spin_port = (processor_and_port >> 5) & 0x7 self._spin_cpu = processor_and_port & 0x1F @property def ip_address(self): """ The IP address of the tag, as a bytearray of 4 bytes :rtype: bytearray """ return self._ip_address @property def mac_address(self): """ The MAC address of the tag, as a bytearray of 6 bytes :rtype: bytearray """ return self._mac_address @property def port(self): """ The port of the tag :rtype: int """ return self._port @property def timeout(self): """ The timeout of the tag :rtype: int """ return self._timeout @property def flags(self): """ The flags of the tag :rtype: int """ return self._flags @property def in_use(self): """ True if the tag is marked as being in use :rtype: bool """ return (self._flags & 0x8000) > 0 @property def is_temporary(self): """ True if the tag is temporary :rtype: bool """ return (self._flags & 0x4000) > 0 @property def is_arp(self): """ True if the tag is in the ARP state (where the MAC address is\ being looked up - transient state so unlikely) :rtype: bool """ return (self._flags & 0x2000) > 0 @property def is_reverse(self): """ True if the tag is a reverse tag :rtype: bool """ return (self._flags & 0x0200) > 0 @property def strip_sdp(self): """ True if the tag is to strip the SDP header :rtype: bool """ return (self._flags & 0x0100) > 0 @property def count(self): """ The count of the number of packets that have been sent with the tag :rtype: int """ return self._count @property def rx_port(self): """ The receive port of the tag :rtype: int """ return self._rx_port @property def spin_chip_x(self): """ The x-coordinate of the chip on which the tag is defined :rtype: int """ return self._spin_chip_x @property def spin_chip_y(self): """ The y-coordinate of the chip on which the tag is defined :rtype: int """ return self._spin_chip_y @property def spin_port(self): """ The spin-port of the IP tag :rtype: int """ return self._spin_port @property def spin_cpu(self): """ The CPU ID of the IP tag :rtype: int """ return self._spin_cpu