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/*
* Copyright 2018 Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __SYSTEMC_EXT_CHANNEL_SC_SIGNAL_HH__
#define __SYSTEMC_EXT_CHANNEL_SC_SIGNAL_HH__
#include <iostream>
#include <string>
#include <vector>
#include "../core/sc_module.hh" // for sc_gen_unique_name
#include "../core/sc_prim.hh"
#include "sc_signal_inout_if.hh"
#include "warn_unimpl.hh" // for warn_unimpl
namespace sc_core
{
class sc_port_base;
class sc_trace_file;
// Nonstandard
// Despite having a warning "FOR INTERNAL USE ONLY!" in all caps above this
// class definition in the Accellera implementation, it appears in their
// examples and test programs, and so we need to have it here as well.
struct sc_trace_params
{
sc_trace_file *tf;
std::string name;
sc_trace_params(sc_trace_file *tf, const std::string &name) :
tf(tf), name(name)
{}
};
typedef std::vector<sc_trace_params *> sc_trace_params_vec;
template <class T, sc_writer_policy WRITER_POLICY=SC_ONE_WRITER>
class sc_signal : public sc_signal_inout_if<T>,
public sc_prim_channel
{
public:
sc_signal() : sc_signal_inout_if<T>(),
sc_prim_channel(sc_gen_unique_name("signal"))
{}
explicit sc_signal(const char *name) : sc_signal_inout_if<T>(),
sc_prim_channel(name)
{}
explicit sc_signal(const char *name, const T &initial_value) :
sc_signal_inout_if<T>(), sc_prim_channel(name)
{
// Need to consume initial_value.
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual ~sc_signal() {}
virtual void
register_port(sc_port_base &, const char *)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual const T&
read() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(const T *)nullptr;
}
operator const T&() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(const T *)nullptr;
}
virtual sc_writer_policy
get_writer_policy() const
{
return WRITER_POLICY;
}
virtual void
write(const T&)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
sc_signal<T, WRITER_POLICY> &
operator = (const T&)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *this;
}
sc_signal<T, WRITER_POLICY> &
operator = (const sc_signal<T, WRITER_POLICY> &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *this;
}
virtual const sc_event &
default_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual const sc_event &
value_changed_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual bool
event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return false;
}
virtual void
print(std::ostream & =std::cout) const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual void
dump(std::ostream & =std::cout) const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual const char *kind() const { return "sc_signal"; }
protected:
virtual void
update()
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
// These members which store the current and future value of the signal
// are not specified in the standard but are referred to directly by one
// of the tests.
T m_cur_val;
T m_new_val;
private:
// Disabled
sc_signal(const sc_signal<T, WRITER_POLICY> &) :
sc_signal_inout_if<T>(), sc_prim_channel("")
{}
};
template <class T, sc_writer_policy WRITER_POLICY>
inline std::ostream &
operator << (std::ostream &os, const sc_signal<T, WRITER_POLICY> &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return os;
}
template <sc_writer_policy WRITER_POLICY>
class sc_signal<bool, WRITER_POLICY> :
public sc_signal_inout_if<bool>, public sc_prim_channel
{
public:
sc_signal()
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
explicit sc_signal(const char *)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
explicit sc_signal(const char *name, const bool &initial_value) :
sc_signal_inout_if<bool>(), sc_prim_channel(name)
{
// Need to consume initial_value.
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual ~sc_signal()
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual void
register_port(sc_port_base &, const char *)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual const bool &
read() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(const bool *)nullptr;
}
operator const bool &() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(const bool *)nullptr;
}
virtual sc_writer_policy
get_writer_policy() const
{
return WRITER_POLICY;
}
virtual void
write(const bool &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
sc_signal<bool, WRITER_POLICY> &
operator = (const bool &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *this;
}
sc_signal<bool, WRITER_POLICY> &
operator = (const sc_signal<bool, WRITER_POLICY> &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *this;
}
virtual const sc_event &
default_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual const sc_event &
value_changed_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual const sc_event &
posedge_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual const sc_event &
negedge_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual bool
event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return false;
}
virtual bool
posedge() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return false;
}
virtual bool
negedge() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return false;
}
virtual void
print(std::ostream & =std::cout) const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual void
dump(std::ostream & =std::cout) const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual const char *kind() const { return "sc_signal"; }
protected:
virtual void
update()
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
private:
// Disabled
sc_signal(const sc_signal<bool, WRITER_POLICY> &) :
sc_signal_inout_if<bool>(), sc_prim_channel("")
{}
};
template <sc_writer_policy WRITER_POLICY>
class sc_signal<sc_dt::sc_logic, WRITER_POLICY> :
public sc_signal_inout_if<sc_dt::sc_logic>, public sc_prim_channel
{
public:
sc_signal()
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
explicit sc_signal(const char *)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
explicit sc_signal(const char *name,
const sc_dt::sc_logic &initial_value) :
sc_signal_inout_if<sc_dt::sc_logic>(), sc_prim_channel(name)
{
// Need to consume initial_value.
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual ~sc_signal()
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual void
register_port(sc_port_base &, const char *)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual const sc_dt::sc_logic &
read() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(const sc_dt::sc_logic *)nullptr;
}
operator const sc_dt::sc_logic &() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(const sc_dt::sc_logic *)nullptr;
}
virtual sc_writer_policy
get_writer_policy() const
{
return WRITER_POLICY;
}
virtual void
write(const sc_dt::sc_logic &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
sc_signal<sc_dt::sc_logic, WRITER_POLICY> &
operator = (const sc_dt::sc_logic &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *this;
}
sc_signal<sc_dt::sc_logic, WRITER_POLICY> &
operator = (const sc_signal<sc_dt::sc_logic, WRITER_POLICY> &)
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *this;
}
virtual const sc_event &
default_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual const sc_event &
value_changed_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual const sc_event &
posedge_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual const sc_event &
negedge_event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return *(sc_event *)nullptr;
}
virtual bool
event() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return false;
}
virtual bool
posedge() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return false;
}
virtual bool
negedge() const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
return false;
}
virtual void
print(std::ostream & =std::cout) const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual void
dump(std::ostream & =std::cout) const
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
virtual const char *kind() const { return "sc_signal"; }
protected:
virtual void
update()
{
sc_channel_warn_unimpl(__PRETTY_FUNCTION__);
}
private:
// Disabled
sc_signal(const sc_signal<sc_dt::sc_logic, WRITER_POLICY> &) :
sc_signal_inout_if<sc_dt::sc_logic>(), sc_prim_channel("")
{}
};
} // namespace sc_core
#endif //__SYSTEMC_EXT_CHANNEL_SC_SIGNAL_HH__
|
