DSP_DSP: Updated interrupt implementation

src/audio_core/audio_core.cpp

@@ -4,6 +4,7 @@
 
 #include "audio_core/audio_core.h"
 #include "audio_core/hle/dsp.h"
+#include "audio_core/hle/pipe.h"
 
 #include "core/core_timing.h"
 #include "core/hle/kernel/vm_manager.h"
@@ -17,10 +18,8 @@ static constexpr u64 audio_frame_ticks = 1310252ull; ///< Units: ARM11 cycles
 
 static void AudioTickCallback(u64 /*userdata*/, int cycles_late) {
     if (DSP::HLE::Tick()) {
-        // HACK: We're not signaling the interrups when they should be, but just firing them all off together.
-        // It should be only (interrupt_id = 2, channel_id = 2) that's signalled here.
-        // TODO(merry): Understand when the other interrupts are fired.
-        DSP_DSP::SignalAllInterrupts();
+        // TODO(merry): Signal all the other interrupts as appropriate.
+        DSP_DSP::SignalPipeInterrupt(DSP::HLE::DspPipe::Audio);
     }
 
     // Reschedule recurrent event

src/audio_core/hle/pipe.cpp

@@ -12,6 +12,8 @@
 #include "common/common_types.h"
 #include "common/logging/log.h"
 
+#include "core/hle/service/dsp_dsp.h"
+
 namespace DSP {
 namespace HLE {
 
@@ -97,6 +99,8 @@ static void AudioPipeWriteStructAddresses() {
     for (u16 addr : struct_addresses) {
         WriteU16(DspPipe::Audio, addr);
     }
+    // Signal that we have data on this pipe.
+    DSP_DSP::SignalPipeInterrupt(DspPipe::Audio);
 }
 
 void PipeWrite(DspPipe pipe_number, const std::vector<u8>& buffer) {