From 670e4127be3144b6d2bc57c1c882a0c1aa3137dd Mon Sep 17 00:00:00 2001
From: red031000 <rubenru09@aol.com>
Date: Wed, 9 Sep 2020 17:02:58 +0100
Subject: arm9 MI_dma_card

---
 arm9/lib/include/MI_dma.h      |  3 +++
 arm9/lib/include/MI_dma_card.h |  8 ++++++++
 arm9/lib/src/MI_dma_card.c     | 24 ++++++++++++++++++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 arm9/lib/include/MI_dma_card.h
 create mode 100644 arm9/lib/src/MI_dma_card.c

(limited to 'arm9/lib')

diff --git a/arm9/lib/include/MI_dma.h b/arm9/lib/include/MI_dma.h
index e8938ef9..bf07129a 100644
--- a/arm9/lib/include/MI_dma.h
+++ b/arm9/lib/include/MI_dma.h
@@ -16,6 +16,9 @@ typedef void (*MIDmaCallback)(void *);
 #define MI_CNT_COPY32_IF(size)  (0xc4000000 | ((size)/4))
 #define MI_CNT_COPY16(size)     (0x80000000 | ((size)/2))
 
+#define MI_DMA_SRC_FIX          (2UL << 23)
+#define MIi_DMA_TIMING_ANY      (u32)(~0)
+
 typedef union
 {
     u32 b32;
diff --git a/arm9/lib/include/MI_dma_card.h b/arm9/lib/include/MI_dma_card.h
new file mode 100644
index 00000000..efd70ba6
--- /dev/null
+++ b/arm9/lib/include/MI_dma_card.h
@@ -0,0 +1,8 @@
+#ifndef POKEDIAMOND_MI_DMA_CARD_H
+#define POKEDIAMOND_MI_DMA_CARD_H
+
+#include "nitro/types.h"
+
+void MIi_CardDmaCopy32(u32 dmaNo, const void *src, void *dest, u32 size);
+
+#endif //POKEDIAMOND_MI_DMA_CARD_H
diff --git a/arm9/lib/src/MI_dma_card.c b/arm9/lib/src/MI_dma_card.c
new file mode 100644
index 00000000..c3b8b897
--- /dev/null
+++ b/arm9/lib/src/MI_dma_card.c
@@ -0,0 +1,24 @@
+#include "MI_dma_card.h"
+#include "MI_dma.h"
+#include "function_target.h"
+
+ARM_FUNC void MIi_CardDmaCopy32(u32 dmaNo, const void *src, void *dest, u32 size)
+{
+    MIi_CheckAnotherAutoDMA(dmaNo, MIi_DMA_TIMING_ANY);
+    MIi_CheckDma0SourceAddress(dmaNo, (u32)src, size, MI_DMA_SRC_FIX);
+
+    if (size == 0)
+    {
+        return;
+    }
+
+    vu32 *dmaCntp;
+
+    do
+    {
+        dmaCntp = &((vu32 *)REG_ADDR_DMA0SAD)[dmaNo * 3 + 2];
+        while (*dmaCntp & 0x80000000) {}
+    } while(0);
+
+    MIi_DmaSetParams(dmaNo, (u32)src, (u32)dest, (u32)(0xaf000001));
+}
-- 
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