-added magic patcher of gx (thanks giantpune) this should make it

possible to always have full NAND access no matter which IOS is
loaded currently
-fixed the sometimes again flashing wait message on game boot
-added some proper ISFS init and deinit methods with debug prints

Makefile

@@ -123,6 +123,7 @@ export OFILES	:=	$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) \
 					$(JPGFILES:.jpg=.jpg.o) $(PNGFILES:.png=.png.o) $(DOLFILES:.dol=.dol.o) \
 					$(OGGFILES:.ogg=.ogg.o) $(WAVFILES:.wav=.wav.o) $(MP3FILES:.mp3=.mp3.o) \
 					$(ELFFILES:.elf=.elf.o) $(BINFILES:.bin=.bin.o) $(TXTFILES:.txt=.txt.o) \
+					$(CURDIR)/data/magic_patcher.o
 
 #---------------------------------------------------------------------------------
 # build a list of include paths

source/channel/channel_launcher.cpp

@@ -11,6 +11,7 @@
 #include "loader/fs.h"
 #include "loader/fst.h"
 #include "loader/utils.h"
+#include "memory/memory.h"
 #include "unzip/lz77.h"
 #include "types.h"
 
@@ -34,15 +35,15 @@ u32	dolchunkcount;
 s32 BootChannel(u32 entry, u64 chantitle, u32 ios, u8 vidMode, bool vipatch, bool countryString, u8 patchVidMode, int aspectRatio)
 {
 	// IOS Version Check
-    *(vu32*)0x80003140 = ((ios << 16)) | 0xFFFF;
-    *(vu32*)0x80003188 = ((ios << 16)) | 0xFFFF;
-    DCFlushRange((void *)0x80003140, 4);
-    DCFlushRange((void *)0x80003188, 4);
+	*Real_IOSVersion = ((ios << 16)) | 0xFFFF;
+	*Game_IOSVersion = ((ios << 16)) | 0xFFFF;
+	DCFlushRange((void*)Real_IOSVersion, 4);
+	DCFlushRange((void*)Game_IOSVersion, 4);
 
 	// Game ID Online Check
-    memset((void *)0x80000000, 0, 4);
-    *(vu32 *)0x80000000 = TITLE_LOWER(chantitle);
-	DCFlushRange((void *)0x80000000, 4);
+	memset((void*)Disc_ID, 0, 4);
+	*Disc_ID = TITLE_LOWER(chantitle);
+	DCFlushRange((void*)Disc_ID, 4);
 
 	ExternalBooter_ChannelSetup(dolchunkoffset, dolchunksize, dolchunkcount, entry);
 	WiiFlow_ExternalBooter(vidMode, vipatch, countryString, patchVidMode, aspectRatio, 0, TYPE_CHANNEL);

source/channel/nand.cpp

@@ -26,7 +26,7 @@
  * Nand/Emulation Handling Class for Wiiflow
  *
  ***************************************************************************/
- 
+#include <ogc/machine/processor.h>
 #include <stdio.h>
 #include <ogcsys.h>
 #include <string.h>
@@ -39,6 +39,7 @@
 #include "fileOps/fileOps.h"
 #include "gecko/gecko.h"
 #include "loader/wbfs.h"
+#include "memory/memory.h"
 
 u8 *confbuffer ATTRIBUTE_ALIGN(32);
 u8 CCode[0x1008];
@@ -1035,3 +1036,52 @@ s32 Nand::Do_Region_Change(string id)
 	__configwrite();
 	return 1;
 }
+
+extern "C" { extern s32 MagicPatches(s32); }
+
+void Nand::Init_ISFS()
+{
+	gprintf("Init ISFS\n");
+	ISFS_Initialize();
+	if(*HW_AHBPROT == 0xFFFFFFFF) //AHBPROT patched out
+	{
+		PatchAHB();
+		MagicPatches(1);
+	}
+}
+
+void Nand::DeInit_ISFS()
+{
+	gprintf("Deinit ISFS\n");
+	ISFS_Deinitialize();
+	if(*HW_AHBPROT == 0xFFFFFFFF) //AHBPROT patched out
+		MagicPatches(0);
+}
+
+/* Thanks to postloader for that patch */
+#define ES_MODULE_START	(u16*)0x939F0000
+
+static const u16 ticket_check[] = {
+    0x685B,          // ldr r3,[r3,#4] ; get TMD pointer
+    0x22EC, 0x0052,  // movls r2, 0x1D8
+    0x189B,          // adds r3, r3, r2; add offset of access rights field in TMD
+    0x681B,          // ldr r3, [r3]   ; load access rights (haxxme!)
+    0x4698,          // mov r8, r3     ; store it for the DVD video bitcheck later
+    0x07DB           // lsls r3, r3, #31; check AHBPROT bit
+};
+
+void Nand::PatchAHB()
+{
+	// Disable memory protection
+	write16(MEM_PROT, 2);
+	for(u16 *patchme = ES_MODULE_START; patchme < ES_MODULE_START + 0x4000; patchme++) 
+	{
+		if(!memcmp(patchme, ticket_check, sizeof(ticket_check))) 
+		{
+			// write16/uncached poke doesn't work for this. Go figure.
+			patchme[4] = 0x23FF; // li r3, 0xFF
+			DCFlushRange(patchme + 4, 2);
+			break;
+		}
+	}
+}

source/channel/nand.hpp

@@ -67,6 +67,8 @@ class Nand
 	void Set_RCMode(bool rcmode) { FullMode = rcmode ? 0x40 : 0; };
 	void Set_SSMode(bool ssmode) { FullMode = ssmode ? 0x60 : 0; };
 
+	void Init_ISFS();
+	void DeInit_ISFS();
 
 	const char * Get_NandPath(void) { return NandPath; };
 	u32 Get_Partition(void) { return Partition; };
@@ -93,6 +95,7 @@ class Nand
 	s32 Nand_Unmount(NandDevice *Device);
 	s32 Nand_Enable(NandDevice *Device);
 	s32 Nand_Disable(void);
+	void PatchAHB(void);
 	void __Dec_Enc_TB(void);
 	void __configshifttxt(char *str);
 	void __GetNameList(const char *source, namelist **entries, int *count);

source/gui/video.cpp

@@ -257,10 +257,12 @@ void CVideo::cleanup(void)
 {
 	gprintf("Cleaning up video...\n");
 
+	hideWaitMessage();
 	_clearScreen();
+
 	VIDEO_SetBlack(TRUE);
 	VIDEO_Flush();
-	hideWaitMessage();
+
 	GX_DrawDone();
 	GX_AbortFrame();
 

source/loader/alt_ios.cpp

@@ -8,10 +8,12 @@
 #include "sys.h"
 #include "wbfs.h"
 #include "wdvd.h"
+#include "channel/nand.hpp"
 #include "devicemounter/DeviceHandler.hpp"
 #include "devicemounter/usbstorage.h"
 #include "gecko/gecko.h"
 #include "memory/mem2.hpp"
+#include "memory/memory.h"
 #include "types.h"
 
 // mload from uloader by Hermes
@@ -22,11 +24,8 @@
 #include "mload_modules.h"
 
 extern "C" { extern u8 currentPartition; }
-extern int __Arena2Lo;
 u8 use_port1 = 0;
 
-#define HAVE_AHBPROT	((*(vu32*)0xcd800064 == 0xFFFFFFFF) ? 1 : 0)
-
 static int load_ehc_module_ex(void)
 {
 	ehcmodule = ehcmodule_5;
@@ -79,36 +78,6 @@ void load_dip_249()
 	mload_close();
 }
 
-/* Thanks to postloader for that patch */
-#define MEM2_PROT		0x0D8B420A
-#define ES_MODULE_START	(u16*)0x939F0000
-
-static const u16 ticket_check[] = {
-    0x685B,          // ldr r3,[r3,#4] ; get TMD pointer
-    0x22EC, 0x0052,  // movls r2, 0x1D8
-    0x189B,          // adds r3, r3, r2; add offset of access rights field in TMD
-    0x681B,          // ldr r3, [r3]   ; load access rights (haxxme!)
-    0x4698,          // mov r8, r3     ; store it for the DVD video bitcheck later
-    0x07DB           // lsls r3, r3, #31; check AHBPROT bit
-};
-
-static void PatchAHB()
-{
-	// Disable memory protection
-	write16(MEM2_PROT, 2);
-
-	for(u16 *patchme = ES_MODULE_START; patchme < ES_MODULE_START + 0x4000; patchme++) 
-	{
-		if(!memcmp(patchme, ticket_check, sizeof(ticket_check))) 
-		{
-			// write16/uncached poke doesn't work for this. Go figure.
-			patchme[4] = 0x23FF; // li r3, 0xFF
-			DCFlushRange(patchme + 4, 2);
-			break;
-		}
-	}
-}
-
 bool loadIOS(int ios, bool launch_game, bool emu_channel)
 {
 #ifndef DOLPHIN
@@ -119,12 +88,10 @@ bool loadIOS(int ios, bool launch_game, bool emu_channel)
 	mload_close();
 
 	gprintf("Reloading into IOS %i from %i...\n", ios, IOS_GetVersion());
-	if(HAVE_AHBPROT && ios == 58) //IOS58 with AHBPROT patched out for Homebrew
-		PatchAHB();
-
-	ISFS_Deinitialize();
+	Nand::Instance()->DeInit_ISFS();
 	bool iosOK = IOS_ReloadIOS(ios) == 0;
-	ISFS_Initialize();
+	Nand::Instance()->Init_ISFS();
+	gprintf("AHBPROT after IOS Reload: %u\n", (*HW_AHBPROT == 0xFFFFFFFF));
 
 	IOS_GetCurrentIOSInfo();
 	if(CurrentIOS.Type == IOS_TYPE_HERMES)
@@ -132,7 +99,6 @@ bool loadIOS(int ios, bool launch_game, bool emu_channel)
 	else if(CurrentIOS.Type == IOS_TYPE_WANIN && CurrentIOS.Revision >= 18)
 		load_dip_249();
 
-	gprintf("AHBPROT after IOS Reload: %u\n", HAVE_AHBPROT);
 	if(!emu_channel)
 	{
 		if(launch_game)

source/loader/nk.c

@@ -41,7 +41,6 @@ bool neek2o(void)
 	if(!checked)
 	{
 		u32 num = 0;
-		ISFS_Initialize();
 		neek = !(ISFS_ReadDir("/sneek", NULL, &num));
 		gprintf("WiiFlow is in %s mode\n", neek ? "neek2o" : "real nand");
 		checked = true;

source/main.cpp

@@ -37,6 +37,7 @@ int main(int argc, char **argv)
 	CVideo vid;
 	vid.init();
 
+	Nand::Instance()->Init_ISFS();
 	MEM2_init(47); //Should be safe to use
 	vid.waitMessage(0.15f);
 
@@ -147,9 +148,7 @@ int main(int argc, char **argv)
 		}
 	}
 	mainMenu->cleanup();
-#ifndef DOLPHIN
-	ISFS_Deinitialize();
-#endif
+	Nand::Instance()->DeInit_ISFS();
 	Sys_Exit();
 	exit(1);
 	return 0;

source/memory/memory.h

@@ -24,12 +24,17 @@ extern "C"
 #define	BI2				((vu32*)0x800000F4)
 #define	Bus_Speed		((vu32*)0x800000F8)
 #define	CPU_Speed		((vu32*)0x800000FC)
+#define Real_IOSVersion	((vu32*)0x80003140)
 #define	Online_Check	((vu32*)0x80003180)
 #define	GameID_Address	((vu32*)0x80003184)
+#define Game_IOSVersion	((vu32*)0x80003188)
 
 #define Priiloader_CFG1	((vu32*)0x8132FFFB)
 #define Priiloader_CFG2	((vu32*)0x817FEFF0)
 
+#define HW_AHBPROT		((vu32*)0xCD800064)
+#define MEM_PROT		((vu32)0xCD8B420A)
+
 #ifdef __cplusplus
 }
 #endif

source/menu/menu_game.cpp

@@ -878,6 +878,8 @@ void CMenu::_launchGC(dir_discHdr *hdr, bool disc)
 		DEVO_Boot();
 	}
 	DML_New_WriteOptions();
+
+	Nand::Instance()->DeInit_ISFS();
 	WII_Initialize();
 	if(WII_LaunchTitle(0x100000100LL) < 0)
 		Sys_LoadMenu();
@@ -1143,6 +1145,7 @@ void CMenu::_launchChannel(dir_discHdr *hdr)
 	}
 	if(forwarder)
 	{
+		Nand::Instance()->DeInit_ISFS();
 		WII_Initialize();
 		if(WII_LaunchTitle(gameTitle) < 0)
 			Sys_LoadMenu();	

source/menu/menu_wbfs.cpp

@@ -439,7 +439,6 @@ bool CMenu::_wbfsOp(CMenu::WBFS_OP op)
 						SoundHandler::DestroyInstance();
 						soundDeinit();
 						Nand::Instance()->Disable_Emu();
-						Nand::DestroyInstance();
 						LWP_CreateThread(&thread, (void *(*)(void *))CMenu::_GCcopyGame, (void *)this, 0, 8 * 1024, 64);
 						break;
 				}