3 files changed, 51 insertions, 0 deletions
diff --git a/arm7/lib/include/SND_channel.h b/arm7/lib/include/SND_channel.h
new file mode 100644
index 00000000..5f90aa66
--- /dev/null
+++ b/arm7/lib/include/SND_channel.h
@@ -0,0 +1,42 @@
+#ifndef GUARD_SND_CHANNEL_H
+#define GUARD_SND_CHANNEL_H
+
+#include "nitro/types.h"
+
+void SND_SetupChannelPcm(
+    s32 chnIdx,
+    const void *data,
+    s32 format,
+    s32 loop,
+    s32 loopStart,
+    s32 loopLen,
+    s32 volume,
+    s32 volumeDiv,
+    s32 timer,
+    s32 pan
+);
+
+void SND_SetupChannelPsg(
+    s32 chnIdx,
+    s32 waveDuty,
+    s32 volume,
+    s32 volumeDiv,
+    s32 timer,
+    s32 pan
+);
+
+void SND_SetupChannelNoise(
+    s32 chnIdx,
+    s32 volume,
+    s32 volumeDiv,
+    s32 timer,
+    s32 pan
+);
+
+void SND_StopChannel(s32 chnIdx, s32 hold);
+
+void SND_SetChannelVolume(s32 chnIdx, s32 volume, s32 volumeDiv);
+void SND_SetChannelPan(s32 chnIdx, s32 pan);
+void SND_SetChannelTimer(s32 chnIdx, s32 timer);
+
+#endif //GUARD_SND_CHANNEL_H
diff --git a/arm7/lib/include/SND_exChannel.h b/arm7/lib/include/SND_exChannel.h
index 8450a629..cc07d34f 100644
--- a/arm7/lib/include/SND_exChannel.h
+++ b/arm7/lib/include/SND_exChannel.h
@@ -11,4 +11,6 @@ void SND_UpdateExChannel(void);
 void SND_ExChannelMain(BOOL update);
 void SND_FreeExChannel(struct SNDExChannel *chn);
 
+typedef void (*SNDExChannelCallback)(struct SNDExChannel *chn, s32 status, void *userData);
+
 #endif //GUARD_SND_EXCHANNEL_H
diff --git a/arm7/lib/include/registers.h b/arm7/lib/include/registers.h
index 1fb1e9ca..bc55d0d8 100644
--- a/arm7/lib/include/registers.h
+++ b/arm7/lib/include/registers.h
@@ -5,6 +5,13 @@
 
 #define reg_EXTKEYIN (*(REGType16v *)0x4000136)
 
+#define reg_SOUNDxCNT_STAT(x) (*((REGType8v *)0x4000403 + ((int)(x) * 0x10)))
+#define reg_SOUNDxCNT(x) (*((REGType32v *)0x4000400 + ((int)x) * 0x10))
+#define reg_SOUNDxSAD(x) (*((REGType32v *)0x4000404 + ((int)x) * 0x10))
+#define reg_SOUNDxTMR(x) (*((REGType16v *)0x4000408 + ((int)x) * 0x10))
+#define reg_SOUNDxPNT(x) (*((REGType16v *)0x400040A + ((int)x) * 0x10))
+#define reg_SOUNDxLEN(x) (*((REGType32v *)0x400040C + ((int)x) * 0x10))
+
 #define EXTKEYIN_X (1<<0)
 #define EXTKEYIN_Y (1<<1)
 #define EXTKEYIN_DEBUG (1<<3)