1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#ifndef __SYSTEMC_EXT_CORE_SC_PORT_HH__ 31#define __SYSTEMC_EXT_CORE_SC_PORT_HH__ 32 33#include <vector> 34 35#include "../utils/sc_report_handler.hh" 36#include "sc_module.hh" // for sc_gen_unique_name 37#include "sc_object.hh" 38 39namespace sc_gem5 40{ 41 42class BindInfo; 43class Module; 44class PendingSensitivityPort; 45class PendingSensitivityFinder; 46 47}; 48 49namespace sc_core 50{ 51 52class sc_interface; 53 54enum sc_port_policy 55{ 56 SC_ONE_OR_MORE_BOUND, // Default 57 SC_ZERO_OR_MORE_BOUND, 58 SC_ALL_BOUND 59}; 60 61class sc_port_base : public sc_object 62{ 63 public: 64 sc_port_base(const char *name, int n, sc_port_policy p); 65 66 void warn_unimpl(const char *func) const; 67 68 int maxSize() const; 69 int size() const; 70
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73 protected: 74 // Implementation defined, but depended on by the tests. 75 void bind(sc_interface &); 76 void bind(sc_port_base &); 77 78 friend class ::sc_gem5::Module; 79 80 // Implementation defined, but depended on by the tests. 81 virtual int vbind(sc_interface &) = 0; 82 virtual int vbind(sc_port_base &) = 0; 83 84 virtual void before_end_of_elaboration() = 0; 85 virtual void end_of_elaboration() = 0; 86 virtual void start_of_simulation() = 0; 87 virtual void end_of_simulation() = 0; 88 89 private: 90 friend class ::sc_gem5::PendingSensitivityPort; 91 friend class ::sc_gem5::PendingSensitivityFinder; 92 friend class ::sc_gem5::Kernel; 93 94 void _gem5Finalize(); 95 96 virtual sc_interface *_gem5Interface(int n) const = 0; 97 virtual void _gem5AddInterface(sc_interface *i) = 0; 98 99 std::vector<::sc_gem5::BindInfo *> _gem5BindInfo; 100 int _maxSize; 101 int _size; 102 bool finalized; 103}; 104 105template <class IF> 106class sc_port_b : public sc_port_base 107{ 108 public: 109 void operator () (IF &i) { bind(i); } 110 void operator () (sc_port_b<IF> &p) { bind(p); } 111 112 virtual void bind(IF &i) { sc_port_base::bind(i); } 113 virtual void bind(sc_port_b<IF> &p) { sc_port_base::bind(p); } 114 115 IF * 116 operator -> () 117 { 118 sc_assert(!_interfaces.empty()); 119 return _interfaces[0]; 120 } 121 const IF * 122 operator -> () const 123 { 124 sc_assert(!_interfaces.empty()); 125 return _interfaces[0]; 126 } 127 128 IF * 129 operator [] (int n) 130 { 131 sc_assert(_interfaces.size() > n); 132 return _interfaces[n]; 133 } 134 const IF * 135 operator [] (int n) const 136 { 137 sc_assert(_interfaces.size() > n); 138 return _interfaces[n]; 139 } 140 141 sc_interface * 142 get_interface() 143 { 144 sc_assert(!_interfaces.empty()); 145 return _interfaces[0]; 146 } 147 const sc_interface * 148 get_interface() const 149 { 150 sc_assert(!_interfaces.empty()); 151 return _interfaces[0]; 152 } 153 154 protected: 155 void before_end_of_elaboration() {} 156 void end_of_elaboration() {} 157 void start_of_simulation() {} 158 void end_of_simulation() {} 159 160 explicit sc_port_b(int n, sc_port_policy p) : 161 sc_port_base(sc_gen_unique_name("port"), n, p) 162 {} 163 sc_port_b(const char *name, int n, sc_port_policy p) : 164 sc_port_base(name, n, p) 165 {} 166 virtual ~sc_port_b() {} 167 168 // Implementation defined, but depended on by the tests. 169 int 170 vbind(sc_interface &i) 171 { 172 IF *interface = dynamic_cast<IF *>(&i); 173 if (!interface) 174 return 2; 175 sc_port_base::bind(*interface); 176 return 0; 177 } 178 int 179 vbind(sc_port_base &pb) 180 { 181 sc_port_b<IF> *p = dynamic_cast<sc_port_b<IF> *>(&pb); 182 if (!p) 183 return 2; 184 sc_port_base::bind(*p); 185 return 0; 186 } 187 188 private: 189 std::vector<IF *> _interfaces; 190 191 sc_interface * 192 _gem5Interface(int n) const 193 { 194 sc_assert(_interfaces.size() > n); 195 return _interfaces[n]; 196 } 197 void 198 _gem5AddInterface(sc_interface *i) 199 { 200 IF *interface = dynamic_cast<IF *>(i); 201 sc_assert(interface); 202 _interfaces.push_back(interface); 203 } 204 205 // Disabled 206 sc_port_b() {} 207 sc_port_b(const sc_port_b<IF> &) {} 208 sc_port_b<IF> &operator = (const sc_port_b<IF> &) { return *this; } 209}; 210 211template <class IF, int N=1, sc_port_policy P=SC_ONE_OR_MORE_BOUND> 212class sc_port : public sc_port_b<IF> 213{ 214 public: 215 sc_port() : sc_port_b<IF>(N, P) {} 216 explicit sc_port(const char *name) : sc_port_b<IF>(name, N, P) {} 217 virtual ~sc_port() {} 218 219 // Deprecated binding constructors. 220 explicit sc_port(const IF &interface) : sc_port_b<IF>(N, P) 221 { 222 this->warn_unimpl(__PRETTY_FUNCTION__); 223 // Should warn that these are deprecated. See Accellera sc_port.h. 224 sc_port_b<IF>::bind(const_cast<IF &>(interface)); 225 } 226 sc_port(const char *name, const IF &interface) : sc_port_b<IF>(name, N, P) 227 { 228 this->warn_unimpl(__PRETTY_FUNCTION__); 229 // Should warn that these are deprecated. See Accellera sc_port.h. 230 sc_port_b<IF>::bind(const_cast<IF &>(interface)); 231 } 232 explicit sc_port(sc_port_b<IF> &parent) : sc_port_b<IF>(N, P) 233 { 234 this->warn_unimpl(__PRETTY_FUNCTION__); 235 // Should warn that these are deprecated. See Accellera sc_port.h. 236 sc_port_b<IF>::bind(parent); 237 } 238 sc_port(const char *name, sc_port_b<IF> &parent) : 239 sc_port_b<IF>(name, N, P) 240 { 241 this->warn_unimpl(__PRETTY_FUNCTION__); 242 // Should warn that these are deprecated. See Accellera sc_port.h. 243 sc_port_b<IF>::bind(parent); 244 } 245 explicit sc_port(sc_port<IF, N, P> &parent) : sc_port_b<IF>(N, P) 246 { 247 this->warn_unimpl(__PRETTY_FUNCTION__); 248 // Should warn that these are deprecated. See Accellera sc_port.h. 249 sc_port_b<IF>::bind(parent); 250 } 251 sc_port(const char *name, sc_port<IF, N, P> &parent) : 252 sc_port_b<IF>(name, N, P) 253 { 254 this->warn_unimpl(__PRETTY_FUNCTION__); 255 // Should warn that these are deprecated. See Accellera sc_port.h. 256 sc_port_b<IF>::bind(parent); 257 } 258 259 virtual const char *kind() const { return "sc_port"; } 260 261 private: 262 // Disabled 263 sc_port(const sc_port<IF, N, P> &) {} 264 sc_port<IF, N, P> &operator = (const sc_port<IF, N, P> &) { return *this; } 265}; 266 267} // namespace sc_core 268 269#endif //__SYSTEMC_EXT_CORE_SC_PORT_HH__
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