# Copyright 2019 Google, Inc.
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from m5.params import *
from m5.proxy import *

from m5.objects.SystemC import SystemC_ScModule
from m5.objects.Tlm import TlmInitiatorSocket, TlmTargetSocket

def AMBA_TARGET_ROLE(width):
    return 'AMBA TARGET %d' % width

def AMBA_INITIATOR_ROLE(width):
    return 'AMBA INITIATOR %d' % width

def SC_REQUEST_PORT_ROLE(port_type):
    return 'SC REQUEST PORT for %s' % port_type

def SC_RESPONSE_PORT_ROLE(port_type):
    return 'SC RESPONSE PORT for %s' % port_type

class AmbaTargetSocket(Port):
    def __init__(self, width, desc):
        my_role = AMBA_INITIATOR_ROLE(width)
        peer_role = AMBA_TARGET_ROLE(width)
        Port.compat(my_role, peer_role)

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

class VectorAmbaTargetSocket(VectorPort):
    def __init__(self, width, desc):
        my_role = AMBA_INITIATOR_ROLE(width)
        peer_role = AMBA_TARGET_ROLE(width)
        Port.compat(my_role, peer_role)

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

class AmbaInitiatorSocket(Port):
    def __init__(self, width, desc):
        my_role = AMBA_TARGET_ROLE(width)
        peer_role = AMBA_INITIATOR_ROLE(width)
        Port.compat(my_role, peer_role)

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

class VectorAmbaInitiatorSocket(VectorPort):
    def __init__(self, width, desc):
        my_role = AMBA_TARGET_ROLE(width)
        peer_role = AMBA_INITIATOR_ROLE(width)
        Port.compat(my_role, peer_role)

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

class ScRequestPort(Port):
    def __init__(self, desc, port_type):
        my_role = SC_REQUEST_PORT_ROLE(port_type)
        peer_role = SC_RESPONSE_PORT_ROLE(port_type)
        Port.compat(my_role, peer_role)

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

class ScResponsePort(Port):
    def __init__(self, desc, port_type):
        my_role = SC_RESPONSE_PORT_ROLE(port_type)
        peer_role = SC_REQUEST_PORT_ROLE(port_type)
        Port.compat(my_role, peer_role)

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

class AmbaToTlmBridge64(SystemC_ScModule):
    type = 'AmbaToTlmBridge64'
    cxx_class = 'gem5::fastmodel::AmbaToTlmBridge64'
    cxx_header = 'arch/arm/fastmodel/amba_to_tlm_bridge.hh'

    amba = AmbaTargetSocket(64, 'AMBA PV target socket')
    tlm = TlmInitiatorSocket(64, 'TLM initiator socket')

class AmbaFromTlmBridge64(SystemC_ScModule):
    type = 'AmbaFromTlmBridge64'
    cxx_class = 'gem5::fastmodel::AmbaFromTlmBridge64'
    cxx_header = 'arch/arm/fastmodel/amba_from_tlm_bridge.hh'

    tlm = TlmTargetSocket(64, 'TLM target socket')
    amba = AmbaInitiatorSocket(64, 'AMBA PV initiator socket')
