From 0bb001dec03b295713ef9867e1de933136382d2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Zrounba?= <clement.zrounba@ec-lyon.fr>
Date: Thu, 21 Dec 2023 13:08:07 +0000
Subject: Add source files missing from previous commit

---
 src/devices/power_meter.cpp | 36 ++++++++++++++++++++++++++++++++++++
 src/devices/power_meter.h   | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 72 insertions(+)
 create mode 100644 src/devices/power_meter.cpp
 create mode 100644 src/devices/power_meter.h

(limited to 'src/devices')

diff --git a/src/devices/power_meter.cpp b/src/devices/power_meter.cpp
new file mode 100644
index 0000000..ad3976d
--- /dev/null
+++ b/src/devices/power_meter.cpp
@@ -0,0 +1,36 @@
+#include "specs.h"
+#include <power_meter.h>
+#include <cstdlib> // system()
+#include <random>
+#include <complex>
+
+using namespace std;
+
+void PowerMeter::trace(sc_trace_file *Tf) const
+{
+    sc_trace(Tf, m_cur_power, (string(name()) + ".power").c_str());
+}
+
+void PowerMeter::on_port_in_changed()
+{
+    // always initialize memory
+    m_memory_in[0] = 0;
+
+    while (true) {
+        // Wait for a new input signal
+        wait();
+
+        const auto &p_in_read = p_in->read();
+
+        auto cur_wavelength_id = p_in_read.m_wavelength_id;
+        // Updating the field memory
+        m_memory_in[cur_wavelength_id] = p_in_read.m_field;
+
+        double total_power = 0;
+        for (auto field : m_memory_in)
+        {
+            total_power += norm(field.second);
+        }
+        m_cur_power = total_power;
+    }
+}
diff --git a/src/devices/power_meter.h b/src/devices/power_meter.h
new file mode 100644
index 0000000..73339f3
--- /dev/null
+++ b/src/devices/power_meter.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <systemc.h>
+#include <fstream>
+#include <random>
+
+#include <optical_output_port.h>
+#include <optical_signal.h>
+#include "specs.h"
+#include "spx_module.h"
+
+/* Power meter (DC component only) */
+class PowerMeter : public spx_module {
+public:
+    // Ports
+    spx::oa_port_in_type p_in;
+    double m_cur_power;
+
+    // Input memory for multi-wavelength purposes
+    std::map<uint32_t,OpticalSignal::field_type> m_memory_in;
+
+    // Processes
+    void on_port_in_changed();
+
+    virtual void trace(sc_trace_file *Tf) const;
+
+    // Constructor
+    PowerMeter(sc_module_name name)
+        : spx_module(name)
+    {
+        SC_HAS_PROCESS(PowerMeter);
+
+        SC_THREAD(on_port_in_changed);
+        sensitive << p_in;
+    }
+};
-- 
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