[DSP] Add empty service

CMakeLists.txt

@@ -55,7 +55,7 @@ set(KERNEL_SOURCE_FILES src/core/kernel/kernel.cpp src/core/kernel/resource_limi
 )
 set(SERVICE_SOURCE_FILES src/core/services/service_manager.cpp src/core/services/apt.cpp src/core/services/hid.cpp
                          src/core/services/fs.cpp src/core/services/gsp_gpu.cpp src/core/services/gsp_lcd.cpp
-                         src/core/services/ndm.cpp
+                         src/core/services/ndm.cpp src/core/services/dsp.cpp
 )
 set(PICA_SOURCE_FILES src/core/PICA/gpu.cpp src/core/PICA/regs.cpp src/core/PICA/shader_unit.cpp
                       src/core/PICA/shader_interpreter.cpp src/core/PICA/renderer_opengl.cpp
@@ -73,6 +73,7 @@ set(HEADER_FILES include/emulator.hpp include/helpers.hpp include/opengl.hpp inc
                  include/PICA/shader.hpp include/PICA/shader_unit.hpp include/PICA/float_types.hpp
                  include/logger.hpp include/loader/ncch.hpp include/loader/ncsd.hpp include/io_file.hpp
                  include/loader/lz77.hpp include/fs/archive_base.hpp include/fs/archive_ncch.hpp
+                 include/services/dsp.hpp
 )
 
 set(THIRD_PARTY_SOURCE_FILES third_party/imgui/imgui.cpp

include/kernel/handles.hpp

@@ -14,8 +14,9 @@ namespace KernelHandles {
 		HID = 0xFFFF8003,            // Handles everything input-related including gyro
 		FS  = 0xFFFF8004,            // Filesystem service
 		GPU = 0xFFFF8005,            // GPU service
-		LCD = 0xFFFF8006,            // LCD service
+		DSP = 0xFFFF8006,            // DSP service (Used for audio decoding and output)
-		NDM = 0xFFFF8007,            // ?????
+		LCD = 0xFFFF8007,            // LCD service (Used for configuring the displays)
+		NDM = 0xFFFF8008,            // ?????
 
 		MinServiceHandle = APT,
 		MaxServiceHandle = NDM,
@@ -49,6 +50,7 @@ namespace KernelHandles {
 			case APT: return "APT";
 			case HID: return "HID";
 			case FS: return "FS";
+			case DSP: return "DSP";
 			case GPU: return "GPU";
 			case LCD: return "LCD";
 			case NDM: return "NDM";

include/logger.hpp

@@ -27,6 +27,7 @@ namespace Log {
 
     // Service loggers
     static Logger<true> aptLogger;
+    static Logger<true> dspServiceLogger;
     static Logger<true> fsLogger;
     static Logger<true> hidLogger;
     static Logger<true> gspGPULogger;

include/services/dsp.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include "helpers.hpp"
+#include "logger.hpp"
+#include "memory.hpp"
+
+class DSPService {
+	Handle handle = KernelHandles::DSP;
+	Memory& mem;
+	MAKE_LOG_FUNCTION(log, dspServiceLogger)
+
+public:
+	DSPService(Memory& mem) : mem(mem) {}
+	void reset();
+	void handleSyncRequest(u32 messagePointer);
+};

include/services/service_manager.hpp

@@ -4,6 +4,7 @@
 #include "logger.hpp"
 #include "memory.hpp"
 #include "services/apt.hpp"
+#include "services/dsp.hpp"
 #include "services/hid.hpp"
 #include "services/fs.hpp"
 #include "services/gsp_gpu.hpp"
@@ -18,6 +19,7 @@ class ServiceManager {
 	MAKE_LOG_FUNCTION(log, srvLogger)
 
 	APTService apt;
+	DSPService dsp;
 	HIDService hid;
 	FSService fs;
 	GPUService gsp_gpu;

src/core/services/dsp.cpp

@@ -0,0 +1,21 @@
+#include "services/dsp.hpp"
+
+namespace DSPCommands {
+	enum : u32 {
+	};
+}
+
+namespace Result {
+	enum : u32 {
+		Success = 0,
+	};
+}
+
+void DSPService::reset() {}
+
+void DSPService::handleSyncRequest(u32 messagePointer) {
+	const u32 command = mem.read32(messagePointer);
+	switch (command) {
+		default: Helpers::panic("LCD service requested. Command: %08X\n", command);
+	}
+}

src/core/services/service_manager.cpp

@@ -1,10 +1,11 @@
 #include "services/service_manager.hpp"
 
 ServiceManager::ServiceManager(std::array<u32, 16>& regs, Memory& mem, GPU& gpu, u32& currentPID, Kernel& kernel)
-	: regs(regs), mem(mem), apt(mem), hid(mem), fs(mem, kernel), gsp_gpu(mem, gpu, currentPID), gsp_lcd(mem), ndm(mem) {}
+	: regs(regs), mem(mem), apt(mem), dsp(mem), hid(mem), fs(mem, kernel), gsp_gpu(mem, gpu, currentPID), gsp_lcd(mem), ndm(mem) {}
 
 void ServiceManager::reset() {
 	apt.reset();
+	dsp.reset();
 	hid.reset();
 	fs.reset();
 	gsp_gpu.reset();
@@ -74,6 +75,8 @@ void ServiceManager::getServiceHandle(u32 messagePointer) {
 		handle = KernelHandles::APT;
 	} else if (service == "APT:U") {
 		handle = KernelHandles::APT;
+	} else if (service == "dsp::DSP") {
+		handle = KernelHandles::DSP;
 	} else if (service == "hid:USER") {
 		handle = KernelHandles::HID;	
 	} else if (service == "fs:USER") {
@@ -111,6 +114,7 @@ void ServiceManager::receiveNotification(u32 messagePointer) {
 void ServiceManager::sendCommandToService(u32 messagePointer, Handle handle) {
 	switch (handle) {
 		case KernelHandles::APT: apt.handleSyncRequest(messagePointer); break;
+		case KernelHandles::DSP: dsp.handleSyncRequest(messagePointer); break;
 		case KernelHandles::HID: hid.handleSyncRequest(messagePointer); break;
 		case KernelHandles::FS: fs.handleSyncRequest(messagePointer); break;
 		case KernelHandles::GPU: [[likely]] gsp_gpu.handleSyncRequest(messagePointer); break;