external_master.cc revision 11793
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 */ 40 41#include "mem/external_master.hh" 42 43#include <cctype> 44#include <iomanip> 45 46#include "debug/ExternalPort.hh" 47 48std::map<std::string, ExternalMaster::Handler *> 49 ExternalMaster::portHandlers; 50 51ExternalMaster::ExternalMaster(ExternalMasterParams *params) : 52 MemObject(params), 53 externalPort(NULL), 54 portName(params->name + ".port"), 55 portType(params->port_type), 56 portData(params->port_data) 57{} 58 59BaseMasterPort & 60ExternalMaster::getMasterPort(const std::string &if_name, 61 PortID idx) 62{ 63 if (if_name == "port") { 64 DPRINTF(ExternalPort, "Trying to bind external port: %s %s\n", 65 portType, portName); 66 67 if (!externalPort) { 68 auto handlerIter = portHandlers.find(portType); 69 70 if (handlerIter == portHandlers.end()) 71 fatal("Can't find port handler type '%s'\n", portType); 72 73 externalPort = portHandlers[portType]->getExternalPort(portName, 74 *this, portData); 75 76 if (!externalPort) { 77 fatal("%s: Can't find external port type: %s" 78 " port_data: '%s'\n", portName, portType, portData); 79 } 80 } 81 return *externalPort; 82 } else { 83 return MemObject::getMasterPort(if_name, idx); 84 } 85} 86 87void 88ExternalMaster::init() 89{ 90 if (!externalPort) { 91 fatal("ExternalMaster %s: externalPort not set!\n", name()); 92 } else if (!externalPort->isConnected()) { 93 fatal("ExternalMaster %s is unconnected!\n", name()); 94 } 95} 96 97ExternalMaster * 98ExternalMasterParams::create() 99{ 100 return new ExternalMaster(this); 101} 102 103void 104ExternalMaster::registerHandler(const std::string &handler_name, 105 Handler *handler) 106{ 107 portHandlers[handler_name] = handler; 108} 109