usbloadergx/source/system/IosLoader.cpp

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2010-09-24 15:46:32 +02:00
#include <gctypes.h>
#include "IosLoader.h"
#include "../fatmounter.h"
#include "../usbloader/usbstorage2.h"
#include "../wad/nandtitle.h"
#include "../mload/mload_modules.h"
#include "../settings/CSettings.h"
#include "wad/nandtitle.h"
/******************************************************************************
* Public Methods:
******************************************************************************/
/*
* Loads CIOS (If possible the one from the settings file).
* @return 0 if a cios has been successfully loaded. Else a value below 0 is returned.
*/
s32 IosLoader::LoadAppCios()
{
s32 ret = -1;
// Unmount devices before reloading IOS.
SDCard_deInit();
USBDevice_deInit();
USBStorage2_Deinit();
u32 ciosLoadPriority[] = { 250, 249, 222, Settings.cios }; // Descending.
u32 activeCios = IOS_GetVersion();
for (u8 i = (sizeof(ciosLoadPriority)/sizeof(ciosLoadPriority[0]))-1; i >= 0; i--)
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{
u32 cios = ciosLoadPriority[i];
if (activeCios == cios)
{
ret = 0;
break;
}
if ((ret = ReloadIosSafe(cios)) > -1)
{
// Remember working cios.
Settings.cios = cios;
break;
}
}
// Remount devices after reloading IOS.
SDCard_Init();
if (IOS_GetVersion() == 222) load_ehc_module();
USBDevice_Init();
return ret;
}
/******************************************************************************
* Private/Protected Methods:
******************************************************************************/
/*
* Reloads a certain IOS under the condition, that an appropriate version of the IOS is installed.
* @return a negative value if a safe reload of the ios was not possible.
*/
s32 IosLoader::ReloadIosSafe(s32 ios)
{
switch (ios)
{
case 222:
{
s32 ios222rev = NandTitles.VersionOf(0x1000000deULL);
if (ios222rev == 4 || ios222rev == 5 || ios222rev == 65535) break;
return -2;
}
case 223:
{
s32 ios223rev = NandTitles.VersionOf(0x1000000dfULL);
if (ios223rev == 4 || ios223rev == 5 || ios223rev == 65535) break;
return -2;
}
case 249:
{
s32 ios249rev = NandTitles.VersionOf(0x1000000f9ULL);
if (ios249rev < 9 || ios249rev == 65280) return -2;
break;
}
case 250:
{
s32 ios250rev = NandTitles.VersionOf(0x1000000faULL);
if (ios250rev < 9 || ios250rev == 65280) return -2;
break;
}
default:
return -3;
}
s32 r = IOS_ReloadIOS(ios);
if (r >= 0) WII_Initialize();
return r;
}