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# Copyright 2019 Google, Inc.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Gabe Black

from m5.params import Port, VectorPort

def TLM_TARGET_ROLE(width):
    return 'TLM TARGET %d' % width

def TLM_INITIATOR_ROLE(width):
    return 'TLM INITIATOR %d' % width

class TlmTargetSocket(Port):
    def __init__(self, width, desc):
        my_role = TLM_TARGET_ROLE(width)
        peer_role = TLM_INITIATOR_ROLE(width)
        Port.compat(my_role, peer_role)

        super(TlmTargetSocket, self).__init__(my_role, desc)

class VectorTlmTargetSocket(VectorPort):
    def __init__(self, width, desc):
        my_role = TLM_TARGET_ROLE(width)
        peer_role = TLM_INITIATOR_ROLE(width)
        Port.compat(my_role, peer_role)

        super(VectorTlmTargetSocket, self).__init__(my_role, desc)

class TlmInitiatorSocket(Port):
    def __init__(self, width, desc):
        my_role = TLM_INITIATOR_ROLE(width)
        peer_role = TLM_TARGET_ROLE(width)
        Port.compat(my_role, peer_role)

        super(TlmInitiatorSocket, self).__init__(my_role, desc, is_source=True)

class VectorTlmInitiatorSocket(VectorPort):
    def __init__(self, width, desc):
        my_role = TLM_INITIATOR_ROLE(width)
        peer_role = TLM_TARGET_ROLE(width)
        Port.compat(my_role, peer_role)

        super(VectorTlmInitiatorSocket, self).__init__(
                my_role, desc, is_source=True)