Add dvdlow

configure.py

@@ -751,7 +751,7 @@ LIBS = [
         "cflags": "$cflags_base",
         "host": False,
         "objects": [
-            "Dolphin/dvd/dvdlow",
+            ["Dolphin/dvd/dvdlow", False],
             ["Dolphin/dvd/dvdfs", True],
             ["Dolphin/dvd/dvd", False],
             ["Dolphin/dvd/dvdqueue", True],

include/dolphin/DVDPriv.h

@@ -2,6 +2,7 @@
 #define _DOLPHIN_DVDPRIV
 
 #include <dolphin/dvd.h>
+#include <dolphin/dvd_regs.h>
 #include <types.h>
 
 #ifdef __cplusplus
@@ -36,8 +37,12 @@ typedef struct DVDBB2 {
 
 typedef void (*DVDOptionalCommandChecker)(DVDCommandBlock* block, void (*cb)(u32 intType));
 typedef void (*DVDLowCallback)(u32 intType);
-DVDCommandBlock* __DVDPopWaitingQueue();
+
 DVDLowCallback DVDLowClearCallback();
+void DVDLowSeek(u32 offset, DVDLowCallback callback);
+
+void __DVDLowSetWAType(u32 type, u32 location);
+DVDCommandBlock* __DVDPopWaitingQueue();
 
 #ifdef __cplusplus
 }

src/Dolphin/dvd/dvdlow.c

@@ -0,0 +1,109 @@
+#include "dolphin/DVDPriv.h"
+#include "dolphin/os.h"
+
+static BOOL FirstRead = TRUE;
+static volatile BOOL StopAtNextInt = FALSE;
+static u32 LastLength = 0;
+static DVDLowCallback Callback = NULL;
+static DVDLowCallback ResetCoverCallback = NULL;
+static OSTime LastResetEnd = 0;
+static BOOL ResetOccurred = FALSE;
+static volatile BOOL WaitingCoverClose = FALSE;
+static BOOL Breaking = FALSE;
+static u32 WorkAroundType = 0;
+static u32 WorkAroundSeekLocation = 0;
+static OSTime LastReadFinished = 0;
+static OSTime LastReadIssued = 0;
+static BOOL LastCommandWasRead = FALSE;
+static u32 NextCommandNumber = 0;
+
+typedef struct DVDUnk {
+  u32 _0;
+  u32 _4;
+  u32 _8;
+} DVDUnk;
+
+typedef struct DVDCommand {
+  s32 _0;
+  u32 _4;
+  u32 _8;
+  u32 _c;
+  DVDLowCallback callback;
+} DVDCommand;
+
+static DVDCommand CommandList[4];
+static OSAlarm AlarmForWA;
+static OSAlarm AlarmForTimeout;
+static OSAlarm AlarmForBreak;
+static DVDUnk Prev;
+static DVDUnk Cur;
+
+void __DVDInitWA() {
+  NextCommandNumber = 0;
+  CommandList[0]._0 = -1;
+  __DVDLowSetWAType(0, 0);
+  OSInitAlarm();
+}
+static void Read(u32 tmp1, u32 tmp2, u32 tmp3, DVDLowCallback tmp4);
+void __DVDInterruptHandler(__OSInterrupt interrupt, OSContext* context) {}
+
+static void AlarmHandler(OSAlarm* alarm, OSContext* context) {
+  DVDCommand* cmd;
+  cmd = &CommandList[NextCommandNumber];
+
+  if (cmd->_0 == 1) {
+    ++NextCommandNumber;
+    Read(cmd->_4, cmd->_8, cmd->_c, cmd->callback);
+  } else if (cmd->_0 == 2) {
+    ++NextCommandNumber;
+    DVDLowSeek(cmd->_c, cmd->callback);
+  }
+}
+
+static void AlarmHandlerForTimeout(OSAlarm* alarm, OSContext* context) {
+  OSContext tmpContext;
+  DVDLowCallback callback;
+  __OSMaskInterrupts(0x400);
+  OSClearContext(&tmpContext);
+  OSSetCurrentContext(&tmpContext);
+  callback = Callback;
+  Callback = NULL;
+  if (callback != NULL) {
+    callback(0x10);
+  }
+  OSClearContext(&tmpContext);
+  OSSetCurrentContext(context);
+}
+
+static void Read(u32 tmp1, u32 tmp2, u32 tmp3, DVDLowCallback tmp4) {
+  
+}
+
+static void SeekTwiceBeforeRead() {
+
+}
+
+void DVDLowRead(u32 unk, DVDLowCallback callback) {
+
+}
+
+void DVDLowSeek(u32 offset, DVDLowCallback callback) {
+
+}
+
+BOOL DVDLowWaitCoverClose(DVDLowCallback callback) {
+  Callback = callback;
+  WaitingCoverClose = TRUE;
+  StopAtNextInt = FALSE;
+  __DIRegs[1] = 2;
+  return TRUE;
+}
+
+
+void __DVDLowSetWAType(u32 type, u32 location) {
+  BOOL enabled;
+  enabled = OSDisableInterrupts();
+  WorkAroundType = type;
+  WorkAroundSeekLocation = location;
+  OSRestoreInterrupts(enabled);
+}