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 "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
116 const T &read() const { return (*this)->read(); }
117 operator const T& () const { return (*this)->read(); }
118
119 void write(const T &t) { (*this)->write(t); }
120 sc_inout<T> &
121 operator = (const T &t)

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154 {
155 return (*this)->value_changed_event();
156 }
157 bool event() const { return (*this)->event(); }
158 sc_event_finder &value_changed() const { return _valueChangedFinder; }
159
160 virtual const char *kind() const { return "sc_inout"; }
161
162 private:
163 T *initValue;
164 mutable sc_event_finder_t<sc_signal_inout_if<T> > _valueChangedFinder;
165
166 // Disabled
167 sc_inout(const sc_inout<T> &);
168};
169
170template <class T>
171inline void
172sc_trace(sc_trace_file *, const sc_inout<T> &, const std::string &)
173{
174 sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
175}
176
177template <>
178class sc_inout<bool> : public sc_port<sc_signal_inout_if<bool>, 1>
179{
180 public:
181 sc_inout() : sc_port<sc_signal_inout_if<bool>, 1>(), initValue(nullptr),
182 _valueChangedFinder(*this,

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254 virtual void
255 end_of_elaboration()
256 {
257 if (initValue) {
258 write(*initValue);
259 delete initValue;
260 initValue = nullptr;
261 }
262 }
263
264 const bool &read() const { return (*this)->read(); }
265 operator const bool& () const { return (*this)->read(); }
266
267 void write(const bool &b) { (*this)->write(b); }
268 sc_inout<bool> &
269 operator = (const bool &b)

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309 bool negedge() const { return (*this)->negedge(); }
310
311 sc_event_finder &value_changed() const { return _valueChangedFinder; }
312 sc_event_finder &pos() const { return _posFinder; }
313 sc_event_finder &neg() const { return _negFinder; }
314
315 virtual const char *kind() const { return "sc_inout"; }
316
317 private:
318 bool *initValue;
319 mutable sc_event_finder_t<sc_signal_inout_if<bool> > _valueChangedFinder;
320 mutable sc_event_finder_t<sc_signal_inout_if<bool> > _posFinder;
321 mutable sc_event_finder_t<sc_signal_inout_if<bool> > _negFinder;
322
323 // Disabled
324 sc_inout(const sc_inout<bool> &);
325};
326
327template <>
328inline void sc_trace<bool>(
329 sc_trace_file *, const sc_inout<bool> &, const std::string &)
330{
331 sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
332}
333
334template <>
335class sc_inout<sc_dt::sc_logic> :
336 public sc_port<sc_signal_inout_if<sc_dt::sc_logic>, 1>
337{
338 public:
339 sc_inout() : sc_port<sc_signal_inout_if<sc_dt::sc_logic>, 1>(),

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428 virtual void
429 end_of_elaboration()
430 {
431 if (initValue) {
432 write(*initValue);
433 delete initValue;
434 initValue = nullptr;
435 }
436 }
437
438 const sc_dt::sc_logic &read() const { return (*this)->read(); }
439 operator const sc_dt::sc_logic& () const { return (*this)->read(); }
440
441 void write(const sc_dt::sc_logic &l) { (*this)->write(l); }
442 sc_inout<sc_dt::sc_logic> &
443 operator = (const sc_dt::sc_logic &l)

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483 bool negedge() const { return (*this)->negedge(); }
484
485 sc_event_finder &value_changed() const { return _valueChangedFinder; }
486 sc_event_finder &pos() const { return _posFinder; }
487 sc_event_finder &neg() const { return _negFinder; }
488
489 virtual const char *kind() const { return "sc_inout"; }
490
491 private:
492 sc_dt::sc_logic *initValue;
493 mutable sc_event_finder_t<
494 sc_signal_inout_if<sc_dt::sc_logic> > _valueChangedFinder;
495 mutable sc_event_finder_t<sc_signal_inout_if<sc_dt::sc_logic> > _posFinder;
496 mutable sc_event_finder_t<sc_signal_inout_if<sc_dt::sc_logic> > _negFinder;
497
498 // Disabled
499 sc_inout(const sc_inout<sc_dt::sc_logic> &);
500};
501
502template <>
503inline void
504sc_trace<sc_dt::sc_logic>(sc_trace_file *, const sc_inout<sc_dt::sc_logic> &,
505 const std::string &)
506{
507 sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
508}
509
510} // namespace sc_core
511
512#endif //__SYSTEMC_EXT_CHANNEL_SC_INOUT_HH__