From 9fa0a7f1da1b70bee995f53c6c96c43189018772 Mon Sep 17 00:00:00 2001
From: mrb0nk500 <b0nk@b0nk.xyz>
Date: Wed, 1 Feb 2023 18:45:02 -0400
Subject: global: Import Dolphin SDK

This version comes from the Metroid Prime decompilation project.
https://github.com/PrimeDecomp/prime
---
 src/Dolphin/GBA/GBA.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 src/Dolphin/GBA/GBA.c

(limited to 'src/Dolphin/GBA/GBA.c')

diff --git a/src/Dolphin/GBA/GBA.c b/src/Dolphin/GBA/GBA.c
new file mode 100644
index 0000000..bb89f2e
--- /dev/null
+++ b/src/Dolphin/GBA/GBA.c
@@ -0,0 +1,109 @@
+#include "dolphin/GBAPriv.h"
+
+static GBASecParams SecParams[4];
+GBA __GBA[4];
+BOOL __GBAReset = FALSE;
+
+static BOOL OnReset(BOOL);
+
+static OSResetFunctionInfo ResetFunctionInfo = {
+  OnReset,
+  127
+};
+
+void ShortCommandProc(s32 chan) {
+  GBA* gba;
+  gba = &__GBA[chan];
+
+  if (gba->result != 0) {
+    return;
+  }
+
+  if (gba->dst[0] != 0 || gba->dst[1] != 4) {
+    gba->result = 1;
+    return;
+  }
+
+  gba->status[0] = gba->dst[2] & GBA_JSTAT_MASK;
+}
+
+void GBAInit() {
+  s32 i;
+  GBA* gba;
+  for (i = 0; i < 4; ++i) {
+    gba = &__GBA[i];
+    gba->delay = OSMicrosecondsToTicks(60);
+    OSInitThreadQueue(&gba->thread_queue);
+    gba->param = &SecParams[i];
+
+    // ASSERTMSG((u32) gba->param % 32 == 0)
+  } 
+
+  OSInitAlarm();
+  DSPInit();
+  __GBAReset = FALSE;
+
+  OSRegisterResetFunction(&ResetFunctionInfo);
+}
+
+s32 GBAGetStatusAsync(s32 chan, u8* status, GBACallback callback) {
+  GBA* gba;
+  s32 ret;
+  gba = &__GBA[chan];
+  if (gba->callback != NULL) {
+    ret = GBA_BUSY;
+  } else {
+    gba->command = 0;
+    gba->status = status;
+    gba->callback = callback;
+    ret = __GBATransfer(chan, 1, 3, ShortCommandProc);
+  }
+
+  return ret;
+}
+
+
+s32 GBAGetStatus(s32 chan, u8* status) {
+  s32 ret;
+  ret = GBAGetStatusAsync(chan, status, __GBASyncCallback);
+
+  if (ret != GBA_READY) {
+    return ret;
+  }
+
+  return __GBASync(chan);
+}
+
+
+s32 GBAResetAsync(s32 chan, u8* status, GBACallback callback) {
+  GBA* gba;
+  s32 ret;
+  gba = &__GBA[chan];
+  if (gba->callback != NULL) {
+    ret = GBA_BUSY;
+  } else {
+    gba->command = 0xFF;
+    gba->status = status;
+    gba->callback = callback;
+    ret = __GBATransfer(chan, 1, 3, ShortCommandProc);
+  }
+
+  return ret;
+}
+
+
+s32 GBAReset(s32 chan, u8* status) {
+  s32 ret;
+
+  ret = GBAResetAsync(chan, status, __GBASyncCallback);
+  if (ret != GBA_READY) {
+    return ret;
+  }
+
+  return __GBASync(chan);
+}
+
+BOOL OnReset(BOOL) {
+  __GBAReset = TRUE;
+  return TRUE;
+}
-- 
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