initial commit

include/bus_monitor.hpp

@@ -0,0 +1,71 @@
+#pragma once
+
+#include "decode.hpp"
+
+#include <cstdint>
+#include <functional>
+#include <vector>
+
+enum class BusDir { front, back };
+
+struct BusFrame {
+  BusDir dir = BusDir::front;
+  int proto = 0x10;
+  int b1 = 0;
+  int b2 = 0;
+};
+
+class BusMonitor {
+ public:
+  static BusMonitor& I() {
+    static BusMonitor inst;
+    return inst;
+  }
+
+  void setResponseWindowMs(int ms) { decoder.responseWindowMs = ms; }
+
+  void setRawSink(std::function<void(const BusFrame&)> sink) { rawSink_ = std::move(sink); }
+  void setDecodedSink(std::function<void(const DecodedRecord&)> sink) { decodedSink_ = std::move(sink); }
+
+  void emitFront(int proto, int addr, int cmd) {
+    BusFrame f{BusDir::front, proto, addr & 0xFF, cmd & 0xFF};
+    rawFrames.push_back(f);
+    if (rawSink_) rawSink_(f);
+
+    auto rec = decoder.decode(addr & 0xFF, cmd & 0xFF, proto);
+    records.push_back(rec);
+    if (decodedSink_) decodedSink_(rec);
+  }
+
+  void emitBack(int value, int prefix = 0xFF) {
+    BusFrame f{BusDir::back, 0xFF, prefix & 0xFF, value & 0xFF};
+    rawFrames.push_back(f);
+    if (rawSink_) rawSink_(f);
+
+    auto rec = decoder.decodeCmdResponse(value & 0xFF, prefix & 0xFF);
+    records.push_back(rec);
+    if (decodedSink_) decodedSink_(rec);
+  }
+
+  void clear() {
+    rawFrames.clear();
+    records.clear();
+  }
+
+  void dispose() {
+    rawFrames.clear();
+    records.clear();
+    rawSink_ = nullptr;
+    decodedSink_ = nullptr;
+  }
+
+  DaliDecode decoder;
+  std::vector<BusFrame> rawFrames;
+  std::vector<DecodedRecord> records;
+
+ private:
+  BusMonitor() = default;
+
+  std::function<void(const BusFrame&)> rawSink_;
+  std::function<void(const DecodedRecord&)> decodedSink_;
+};