service/dsp: Clean up global state

src/audio_core/dsp_interface.h

@@ -11,6 +11,12 @@
 #include "common/common_types.h"
 #include "core/memory.h"
 
+namespace Service {
+namespace DSP {
+class DSP_DSP;
+} // namespace DSP
+} // namespace Service
+
 namespace AudioCore {
 
 class Sink;
@@ -60,6 +66,9 @@ public:
     /// Returns a reference to the array backing DSP memory
     virtual std::array<u8, Memory::DSP_RAM_SIZE>& GetDspMemory() = 0;
 
+    /// Sets the dsp class that we trigger interrupts for
+    virtual void SetDspToInterrupt(std::shared_ptr<Service::DSP::DSP_DSP> dsp) = 0;
+
     /// Select the sink to use based on sink id.
     void SetSink(const std::string& sink_id, const std::string& audio_device);
     /// Get the current sink