ps2dev · uyjulian · May 15, 2026
diff --git a/iop/sound/libsd/Makefile b/iop/sound/libsd/Makefile
@@ -2,20 +2,21 @@
 #  ____|   |    ____|   |        | |____|
 # |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
 #-----------------------------------------------------------------------
-# Copyright 2001-2004, ps2dev - http://www.ps2dev.org
+# Copyright ps2dev - http://www.ps2dev.org
 # Licenced under Academic Free License version 2.0
 # Review ps2sdk README & LICENSE files for further details.
 
 IOP_BIN_ALTNAMES = freesd.irx
 
-IOP_IMPORT_INCS += \
-	system/intrman \
-	system/loadcore \
-	system/sifman \
-	system/stdio \
-	system/sysclib
+IOP_INCS += \
+	-I$(PS2SDKSRC)/iop/system/intrman/include \
+	-I$(PS2SDKSRC)/iop/system/loadcore/include \
+	-I$(PS2SDKSRC)/iop/system/sifman/include \
+	-I$(PS2SDKSRC)/iop/system/stdio/include \
+	-I$(PS2SDKSRC)/iop/system/sysclib/include \
+	-I$(PS2SDKSRC)/iop/system/threadman/include
 
-IOP_OBJS = exports.o freesd.o batch.o block.o effect.o voice.o imports.o
+IOP_OBJS = libsd.o imports.o exports.o
 
 include $(PS2SDKSRC)/Defs.make
 include $(PS2SDKSRC)/iop/Rules.bin.make

diff --git a/iop/sound/libsd/README.md b/iop/sound/libsd/README.md
@@ -0,0 +1,24 @@
+# Sound Device Library
+
+This module is an abstraction layer for the SPU2 interface used for audio mixing and analog and digital audio output.
+
+## Configurations
+
+There are multiple configurations of this library, allowing the choice of
+balancing between size, speed, and features.
+
+* `libsd` -> The recommended version.
+
+## How to use this module in your program
+
+In order to use this module in your program, use `LoadModule` or \
+`LoadModuleBuffer` with no arguments.
+
+## Credits
+
+Original FREESD 1.0 developer: TyRaNiD <mailto:tiraniddo@hotmail.com>\
+Original FREESD 1.0 developer: Lukasz Bruun <mailto:ps2@lukasz.dk>\
+Neill Corlett <mailto:neill@neillcorlett.com> for very valuable information on sound registers.\
+\[RO]man <mailto:roman_ps2dev@hotmail.com> for register information.\
+adresd <mailto:adresd_ps2dev@yahoo.com>, Nicholas Van Veen <mailto:nickvv@xtra.co.nz>, Vzzrzzn,
+MrHTFord <mailto:mrhtford_ps2dev@hotmail.com> for their work with libsd and thereby providing test data.
diff --git a/iop/sound/libsd/src/exports.tab b/iop/sound/libsd/src/exports.tab
@@ -1,33 +1,39 @@
 
-DECLARE_EXPORT_TABLE(libsd, 1, 4)
-	DECLARE_EXPORT(_start)
-	DECLARE_EXPORT(_retonly)
-	DECLARE_EXPORT(sceSdQuit)
-	DECLARE_EXPORT(_retonly)
-	DECLARE_EXPORT(sceSdInit)
-	DECLARE_EXPORT(sceSdSetParam) // 5
-	DECLARE_EXPORT(sceSdGetParam)
-	DECLARE_EXPORT(sceSdSetSwitch)
-	DECLARE_EXPORT(sceSdGetSwitch)
-	DECLARE_EXPORT(sceSdSetAddr)
-	DECLARE_EXPORT(sceSdGetAddr) // 10
-	DECLARE_EXPORT(sceSdSetCoreAttr)
-	DECLARE_EXPORT(sceSdGetCoreAttr)
-	DECLARE_EXPORT(sceSdNote2Pitch)
-	DECLARE_EXPORT(sceSdPitch2Note)
-	DECLARE_EXPORT(sceSdProcBatch) // 15
-	DECLARE_EXPORT(sceSdProcBatchEx)
-	DECLARE_EXPORT(sceSdVoiceTrans)
-	DECLARE_EXPORT(sceSdBlockTrans)
-	DECLARE_EXPORT(sceSdVoiceTransStatus)
-	DECLARE_EXPORT(sceSdBlockTransStatus) // 20
-	DECLARE_EXPORT(sceSdSetTransCallback)
-	DECLARE_EXPORT(sceSdSetIRQCallback)
-	DECLARE_EXPORT(sceSdSetEffectAttr)
-	DECLARE_EXPORT(sceSdGetEffectAttr)
-	DECLARE_EXPORT(sceSdClearEffectWorkArea) // 25
-	DECLARE_EXPORT(sceSdSetTransIntrHandler)
-	DECLARE_EXPORT(sceSdSetSpu2IntrHandler)
+DECLARE_EXPORT_TABLE(libsd, 1, 5)
+DECLARE_EXPORT(_start)
+DECLARE_EXPORT(_retonly)
+DECLARE_EXPORT(sceSdQuit)
+DECLARE_EXPORT(_retonly)
+DECLARE_EXPORT(sceSdInit)
+DECLARE_EXPORT(sceSdSetParam)
+DECLARE_EXPORT(sceSdGetParam)
+DECLARE_EXPORT(sceSdSetSwitch)
+DECLARE_EXPORT(sceSdGetSwitch)
+DECLARE_EXPORT(sceSdSetAddr)
+DECLARE_EXPORT(sceSdGetAddr)
+DECLARE_EXPORT(sceSdSetCoreAttr)
+DECLARE_EXPORT(sceSdGetCoreAttr)
+DECLARE_EXPORT(sceSdNote2Pitch)
+DECLARE_EXPORT(sceSdPitch2Note)
+DECLARE_EXPORT(sceSdProcBatch)
+DECLARE_EXPORT(sceSdProcBatchEx)
+DECLARE_EXPORT(sceSdVoiceTrans)
+DECLARE_EXPORT(sceSdBlockTrans)
+DECLARE_EXPORT(sceSdVoiceTransStatus)
+DECLARE_EXPORT(sceSdBlockTransStatus)
+DECLARE_EXPORT(sceSdSetTransCallback)
+DECLARE_EXPORT(sceSdSetIRQCallback)
+DECLARE_EXPORT(sceSdSetEffectAttr)
+DECLARE_EXPORT(sceSdGetEffectAttr)
+DECLARE_EXPORT(sceSdClearEffectWorkArea)
+DECLARE_EXPORT(sceSdSetTransIntrHandler)
+DECLARE_EXPORT(sceSdSetSpu2IntrHandler)
+DECLARE_EXPORT(sceSdGetTransIntrHandlerArgument)
+DECLARE_EXPORT(sceSdGetSpu2IntrHandlerArgument)
+DECLARE_EXPORT(sceSdStopTrans)
+DECLARE_EXPORT(sceSdCleanEffectWorkArea)
+DECLARE_EXPORT(sceSdSetEffectMode)
+DECLARE_EXPORT(sceSdSetEffectModeParams)
 END_EXPORT_TABLE
 
 void _retonly() {}
diff --git a/iop/sound/libsd/src/imports.lst b/iop/sound/libsd/src/imports.lst
@@ -1,6 +1,3 @@
-sysclib_IMPORTS_start
-I_memcpy
-sysclib_IMPORTS_end
 
 intrman_IMPORTS_start
 I_RegisterIntrHandler
@@ -9,6 +6,7 @@ I_EnableIntr
 I_DisableIntr
 I_CpuSuspendIntr
 I_CpuResumeIntr
+I_QueryIntrContext
 intrman_IMPORTS_end
 
 loadcore_IMPORTS_start
@@ -21,6 +19,18 @@ I_sceSifSetDma
 I_sceSifDmaStat
 sifman_IMPORTS_end
 
-stdio_IMPORTS_start
-I_printf
-stdio_IMPORTS_end
+sysclib_IMPORTS_start
+I_bzero
+I_memset
+I_memcpy
+sysclib_IMPORTS_end
+
+thevent_IMPORTS_start
+I_CreateEventFlag
+I_DeleteEventFlag
+I_SetEventFlag
+I_iSetEventFlag
+I_ClearEventFlag
+I_iClearEventFlag
+I_WaitEventFlag
+thevent_IMPORTS_end
diff --git a/iop/sound/libsd/src/irx_imports.h b/iop/sound/libsd/src/irx_imports.h
@@ -3,7 +3,7 @@
 #  ____|   |    ____|   |        | |____|
 # |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
 #-----------------------------------------------------------------------
-# Copyright 2001-2009, ps2dev - http://www.ps2dev.org
+# Copyright ps2dev - http://www.ps2dev.org
 # Licenced under Academic Free License version 2.0
 # Review ps2sdk README & LICENSE files for further details.
 #
@@ -19,7 +19,7 @@
 #include <intrman.h>
 #include <loadcore.h>
 #include <sifman.h>
-#include <stdio.h>
 #include <sysclib.h>
+#include <thevent.h>
 
 #endif /* IOP_IRX_IMPORTS_H */