external_master.cc revision 11817:594d96c093d0
1/* 2 * Copyright (c) 2012-2014 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Andrew Bardsley 38 * Curtis Dunham 39 * Christian Menard 40 */ 41 42#include "mem/external_master.hh" 43 44#include <cctype> 45#include <iomanip> 46 47#include "base/trace.hh" 48#include "debug/ExternalPort.hh" 49#include "sim/system.hh" 50 51std::map<std::string, ExternalMaster::Handler *> 52 ExternalMaster::portHandlers; 53 54ExternalMaster::ExternalMaster(ExternalMasterParams *params) : 55 MemObject(params), 56 externalPort(NULL), 57 portName(params->name + ".port"), 58 portType(params->port_type), 59 portData(params->port_data), 60 masterId(params->system->getMasterId(params->name)) 61{} 62 63BaseMasterPort & 64ExternalMaster::getMasterPort(const std::string &if_name, 65 PortID idx) 66{ 67 if (if_name == "port") { 68 DPRINTF(ExternalPort, "Trying to bind external port: %s %s\n", 69 portType, portName); 70 71 if (!externalPort) { 72 auto handlerIter = portHandlers.find(portType); 73 74 if (handlerIter == portHandlers.end()) 75 fatal("Can't find port handler type '%s'\n", portType); 76 77 externalPort = portHandlers[portType]->getExternalPort(portName, 78 *this, portData); 79 80 if (!externalPort) { 81 fatal("%s: Can't find external port type: %s" 82 " port_data: '%s'\n", portName, portType, portData); 83 } 84 } 85 return *externalPort; 86 } else { 87 return MemObject::getMasterPort(if_name, idx); 88 } 89} 90 91void 92ExternalMaster::init() 93{ 94 if (!externalPort) { 95 fatal("ExternalMaster %s: externalPort not set!\n", name()); 96 } else if (!externalPort->isConnected()) { 97 fatal("ExternalMaster %s is unconnected!\n", name()); 98 } 99} 100 101ExternalMaster * 102ExternalMasterParams::create() 103{ 104 return new ExternalMaster(this); 105} 106 107void 108ExternalMaster::registerHandler(const std::string &handler_name, 109 Handler *handler) 110{ 111 portHandlers[handler_name] = handler; 112} 113