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#pragma once
#include <systemc.h>
#include <fstream>
#include <optical_output_port.h>
#include <optical_signal.h>
using namespace std;
class BitstreamSource : public sc_module {
public:
// Set it as typedef for now (we may very well never need to change it)
typedef unsigned long operand_type;
public:
// Ports
sc_port<sc_signal_in_if<bool>> p_enable;
sc_in<bool> p_clk;
sc_port<sc_signal_out_if<OpticalSignal>> p_out;
// Timed ports writers
OpticalOutputPort m_out_writer;
// Member variables
static unsigned int m_bits_per_value;
vector<operand_type> m_values;
operand_type m_current_value = 0;
OpticalSignal m_signal_on;
OpticalSignal m_signal_off;
// Processes
void runner();
//
inline void setWavelength(const double &wl)
{
m_signal_on.m_wavelength_id = m_signal_on.getIDFromWavelength(wl);
m_signal_off.m_wavelength_id = m_signal_off.getIDFromWavelength(wl);
}
//
inline void setPower(const double &on, const double &off = 0.0)
{
m_signal_on.m_field = sqrt(on);
m_signal_off.m_field = sqrt(off);
}
// Constructor
BitstreamSource(sc_module_name name)
: sc_module(name)
, m_out_writer("out_delayed_writer", p_out)
{
SC_HAS_PROCESS(BitstreamSource);
SC_THREAD(runner);
sensitive << p_clk.pos() << p_clk.neg();
}
BitstreamSource(sc_module_name name,
const vector<operand_type> &values,
const OpticalSignal &signal_on,
const OpticalSignal &signal_off = OpticalSignal(0))
: sc_module(name)
, m_out_writer("out_delayed_writer", p_out)
, m_values(values)
, m_current_value(values.empty() ? 0 : values[0])
, m_signal_on(signal_on)
, m_signal_off(signal_off)
{
SC_HAS_PROCESS(BitstreamSource);
SC_THREAD(runner);
sensitive << p_clk.pos() << p_clk.neg();
}
BitstreamSource(sc_module_name name,
const std::string &values_file,
const OpticalSignal &signal_on,
const OpticalSignal &signal_off = OpticalSignal(0))
: sc_module(name)
, m_out_writer("out_delayed_writer", p_out)
, m_signal_on(signal_on)
, m_signal_off(signal_off)
{
// Read values from file
std::ifstream i(values_file);
int value;
m_values.clear();
while ( i.good() ) {
i >> value;
m_values.push_back(value);
}
m_current_value = (m_values.empty() ? 0 : m_values[0]);
SC_HAS_PROCESS(BitstreamSource);
SC_THREAD(runner);
sensitive << p_clk.pos() << p_clk.neg();
}
};
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