[DSP] Add event stubs to fix games locking up

include/services/dsp.hpp

@@ -1,4 +1,6 @@
 #pragma once
+#include <array>
+#include <optional>
 #include "helpers.hpp"
 #include "logger.hpp"
 #include "memory.hpp"
@@ -41,18 +43,38 @@ public:
 	}
 };
 
+// Circular dependencies!
+class Kernel;
+
 class DSPService {
 	Handle handle = KernelHandles::DSP;
 	Memory& mem;
+	Kernel& kernel;
 	MAKE_LOG_FUNCTION(log, dspServiceLogger)
 
+	// Number of DSP pipes
+	static constexpr size_t pipeCount = 8;
 	DSPPipe audioPipe;
 
+	// DSP service event handles
+	using DSPEvent = std::optional<Handle>;
+
+	DSPEvent semaphoreEvent;
+	DSPEvent interrupt0;
+	DSPEvent interrupt1;
+	std::array<DSPEvent, pipeCount> pipeEvents;
+
+	DSPEvent& getEventRef(u32 type, u32 pipe);
+	static constexpr size_t maxEventCount = 6;
+
+	// Total number of DSP service events registered with registerInterruptEvents
+	size_t totalEventCount;
+
 	// Service functions
 	void convertProcessAddressFromDspDram(u32 messagePointer); // Nice function name
 	void flushDataCache(u32 messagePointer);
 	void getHeadphoneStatus(u32 messagePointer);
-	void getSemaphoreHandle(u32 messagePointer);
+	void getSemaphoreEventHandle(u32 messagePointer);
 	void invalidateDCache(u32 messagePointer);
 	void loadComponent(u32 messagePointer);
 	void readPipeIfPossible(u32 messagePointer);
@@ -62,7 +84,7 @@ class DSPService {
 	void writeProcessPipe(u32 messagePointer);
 
 public:
-	DSPService(Memory& mem) : mem(mem) {}
+	DSPService(Memory& mem, Kernel& kernel) : mem(mem), kernel(kernel) {}
 	void reset();
 	void handleSyncRequest(u32 messagePointer);