1 files changed, 53 insertions, 0 deletions
diff --git a/arm9/lib/include/GX_dma.h b/arm9/lib/include/GX_dma.h
new file mode 100644
index 00000000..98f6a4a2
--- /dev/null
+++ b/arm9/lib/include/GX_dma.h
@@ -0,0 +1,53 @@
+#ifndef GUARD_GX_DMA_H
+#define GUARD_GX_DMA_H
+
+#define GX_DMA_NOT_USE -1
+#define GX_CPU_FASTER32_SIZE 0x30
+#define GX_CPU_FASTER16_SIZE 0x1C
+
+static inline void GXi_DmaCopy32(u32 dmaNo, const void *src, void *dest, u32 size)
+{
+    if (dmaNo != GX_DMA_NOT_USE && size > GX_CPU_FASTER32_SIZE)
+    {
+        MI_DmaCopy32(dmaNo, src, dest, size);
+    }
+    else
+    {
+        MIi_CpuCopy32(src, dest, size);
+    }
+}
+
+static inline void GXi_DmaCopy16(u32 dmaNo, const void *src, void *dest, u32 size)
+{
+    if (dmaNo != GX_DMA_NOT_USE && size > GX_CPU_FASTER16_SIZE)
+    {
+        MI_DmaCopy16(dmaNo, src, dest, size);
+    }
+    else
+    {
+        MIi_CpuCopy16(src, dest, size);
+    }
+}
+
+static inline void GXi_DmaCopy32Async(u32 dmaNo, const void *src, void *dest, u32 size,
+                                      MIDmaCallback callback, void *arg)
+{
+    if (dmaNo != GX_DMA_NOT_USE)
+    {
+        MI_DmaCopy32Async(dmaNo, src, dest, size, callback, arg);
+    }
+    else
+    {
+        MIi_CpuCopy32(src, dest, size);
+    }
+}
+
+static inline void GXi_WaitDma(u32 dmaNo)
+{
+    if (dmaNo != GX_DMA_NOT_USE)
+    {
+        MI_WaitDma(dmaNo);
+    }
+}
+
+#endif //GUARD_GX_DMA_H