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

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30#ifndef __SYSTEMC_EXT_CHANNEL_SC_INOUT_HH__
31#define __SYSTEMC_EXT_CHANNEL_SC_INOUT_HH__
32
33#include <string>
34
35#include "../core/sc_event.hh"
36#include "../core/sc_port.hh"
37#include "../dt/bit/sc_logic.hh"
38#include "../utils/sc_trace_file.hh"
39#include "sc_signal_inout_if.hh"
39#include "warn_unimpl.hh"
40
41namespace sc_dt
42{
43
44class sc_logic;
45
46} // namespace sc_dt
47

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106 virtual void
107 end_of_elaboration()
108 {
109 if (initValue) {
110 write(*initValue);
111 delete initValue;
112 initValue = nullptr;
113 }
114
115 for (auto params: traceParamsVec)
116 sc_trace(params->tf, (*this)->read(), params->name);
117
118 traceParamsVec.clear();
119 }
120
121 const T &read() const { return (*this)->read(); }
122 operator const T& () const { return (*this)->read(); }
123
124 void write(const T &t) { (*this)->write(t); }
125 sc_inout<T> &
126 operator = (const T &t)

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159 {
160 return (*this)->value_changed_event();
161 }
162 bool event() const { return (*this)->event(); }
163 sc_event_finder &value_changed() const { return _valueChangedFinder; }
164
165 virtual const char *kind() const { return "sc_inout"; }
166
167 void
168 add_trace(sc_trace_file *tf, const std::string &name) const
169 {
170 traceParamsVec.push_back(new sc_trace_params(tf, name));
171 }
172
173 private:
174 T *initValue;
175 mutable sc_event_finder_t<sc_signal_inout_if<T> > _valueChangedFinder;
176
177 mutable sc_trace_params_vec traceParamsVec;
178
179 // Disabled
180 sc_inout(const sc_inout<T> &);
181};
182
183template <class T>
184inline void
172sc_trace(sc_trace_file *, const sc_inout<T> &, const std::string &)
185sc_trace(sc_trace_file *tf, const sc_inout<T> &i, const std::string &name)
186{
174 sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
187 if (i.size())
188 sc_trace(tf, i->read(), name);
189 else
190 i.add_trace(tf, name);
191}
192
193template <>
194class sc_inout<bool> : public sc_port<sc_signal_inout_if<bool>, 1>
195{
196 public:
197 sc_inout() : sc_port<sc_signal_inout_if<bool>, 1>(), initValue(nullptr),
198 _valueChangedFinder(*this,

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270 virtual void
271 end_of_elaboration()
272 {
273 if (initValue) {
274 write(*initValue);
275 delete initValue;
276 initValue = nullptr;
277 }
278
279 for (auto params: traceParamsVec)
280 sc_trace(params->tf, (*this)->read(), params->name);
281
282 traceParamsVec.clear();
283 }
284
285 const bool &read() const { return (*this)->read(); }
286 operator const bool& () const { return (*this)->read(); }
287
288 void write(const bool &b) { (*this)->write(b); }
289 sc_inout<bool> &
290 operator = (const bool &b)

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330 bool negedge() const { return (*this)->negedge(); }
331
332 sc_event_finder &value_changed() const { return _valueChangedFinder; }
333 sc_event_finder &pos() const { return _posFinder; }
334 sc_event_finder &neg() const { return _negFinder; }
335
336 virtual const char *kind() const { return "sc_inout"; }
337
338 void
339 add_trace(sc_trace_file *tf, const std::string &name) const
340 {
341 traceParamsVec.push_back(new sc_trace_params(tf, name));
342 }
343
344 private:
345 bool *initValue;
346 mutable sc_event_finder_t<sc_signal_inout_if<bool> > _valueChangedFinder;
347 mutable sc_event_finder_t<sc_signal_inout_if<bool> > _posFinder;
348 mutable sc_event_finder_t<sc_signal_inout_if<bool> > _negFinder;
349
350 mutable sc_trace_params_vec traceParamsVec;
351
352 // Disabled
353 sc_inout(const sc_inout<bool> &);
354};
355
356template <>
357inline void sc_trace<bool>(
329 sc_trace_file *, const sc_inout<bool> &, const std::string &)
358 sc_trace_file *tf, const sc_inout<bool> &i, const std::string &name)
359{
331 sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
360 if (i.size())
361 sc_trace(tf, i->read(), name);
362 else
363 i.add_trace(tf, name);
364}
365
366template <>
367class sc_inout<sc_dt::sc_logic> :
368 public sc_port<sc_signal_inout_if<sc_dt::sc_logic>, 1>
369{
370 public:
371 sc_inout() : sc_port<sc_signal_inout_if<sc_dt::sc_logic>, 1>(),

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460 virtual void
461 end_of_elaboration()
462 {
463 if (initValue) {
464 write(*initValue);
465 delete initValue;
466 initValue = nullptr;
467 }
468
469 for (auto params: traceParamsVec)
470 sc_trace(params->tf, (*this)->read(), params->name);
471
472 traceParamsVec.clear();
473 }
474
475 const sc_dt::sc_logic &read() const { return (*this)->read(); }
476 operator const sc_dt::sc_logic& () const { return (*this)->read(); }
477
478 void write(const sc_dt::sc_logic &l) { (*this)->write(l); }
479 sc_inout<sc_dt::sc_logic> &
480 operator = (const sc_dt::sc_logic &l)

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520 bool negedge() const { return (*this)->negedge(); }
521
522 sc_event_finder &value_changed() const { return _valueChangedFinder; }
523 sc_event_finder &pos() const { return _posFinder; }
524 sc_event_finder &neg() const { return _negFinder; }
525
526 virtual const char *kind() const { return "sc_inout"; }
527
528 void
529 add_trace(sc_trace_file *tf, const std::string &name) const
530 {
531 traceParamsVec.push_back(new sc_trace_params(tf, name));
532 }
533
534 private:
535 sc_dt::sc_logic *initValue;
536 mutable sc_event_finder_t<
537 sc_signal_inout_if<sc_dt::sc_logic> > _valueChangedFinder;
538 mutable sc_event_finder_t<sc_signal_inout_if<sc_dt::sc_logic> > _posFinder;
539 mutable sc_event_finder_t<sc_signal_inout_if<sc_dt::sc_logic> > _negFinder;
540
541 mutable sc_trace_params_vec traceParamsVec;
542
543 // Disabled
544 sc_inout(const sc_inout<sc_dt::sc_logic> &);
545};
546
547template <>
548inline void
504sc_trace<sc_dt::sc_logic>(sc_trace_file *, const sc_inout<sc_dt::sc_logic> &,
505 const std::string &)
549sc_trace<sc_dt::sc_logic>(sc_trace_file *tf,
550 const sc_inout<sc_dt::sc_logic> &i, const std::string &name)
551{
507 sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
552 if (i.size())
553 sc_trace(tf, i->read(), name);
554 else
555 i.add_trace(tf, name);
556}
557
558} // namespace sc_core
559
560#endif //__SYSTEMC_EXT_CHANNEL_SC_INOUT_HH__