usbloadergx/source/usbloader/apploader.c

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#include <stdio.h>
#include <ogcsys.h>
#include <string.h>
#include <malloc.h>
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#include "patches/patchcode.h"
#include "apploader.h"
#include "wdvd.h"
#include "wpad.h"
#include "disc.h"
#include "alternatedol.h"
#include "fstfile.h"
#include "settings/cfg.h"
#include "gecko.h"
#include "patches/wip.h"
#include "patches/dolpatcher.h"
#include "patches/gamepatches.h"
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extern bool geckoinit;
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/* Apploader function pointers */
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typedef int (*app_main)(void **dst, int *size, int *offset);
typedef void (*app_init)(void(*report)(const char *fmt, ...));
typedef void *(*app_final)();
typedef void (*app_entry)(void(**init)(void(*report)(const char *fmt, ...)), int(**main)(), void *(**final)());
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/* Apploader pointers */
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static u8 *appldr = (u8 *) 0x81200000;
/* Constants */
#define APPLDR_OFFSET 0x2440
/* Variables */
static u32 buffer[0x20] ATTRIBUTE_ALIGN( 32 );
void gamepatches(u8 * dst, int len, u8 videoSelected, u8 patchcountrystring, u8 vipatch, u8 cheat, u8 fix002)
{
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VideoModePatcher(dst, len, videoSelected);
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if (cheat) dogamehooks(dst, len);
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if (vipatch) vidolpatcher(dst, len);
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/*LANGUAGE PATCH - FISHEARS*/
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langpatcher(dst, len);
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/*Thanks to WiiPower*/
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if (patchcountrystring == 1) PatchCountryStrings(dst, len);
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NSMBPatch(dst, len);
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do_wip_code((u8 *) dst, len);
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if (fix002 == 2) Anti_002_fix(dst, len);
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}
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s32 Apploader_Run(entry_point *entry, char * dolpath, u8 cheat, u8 videoSelected, u8 vipatch, u8 patchcountrystring,
u8 error002fix, u8 alternatedol, u32 alternatedoloffset, u32 returnTo, u8 fix002)
{
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app_entry appldr_entry;
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app_init appldr_init;
app_main appldr_main;
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app_final appldr_final;
u32 appldr_len;
s32 ret;
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gprintf("\nApploader_Run() started\n");
//u32 geckoattached = usb_isgeckoalive(EXI_CHANNEL_1);
//if (geckoattached)usb_flush(EXI_CHANNEL_1);
geckoinit = InitGecko();
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/* Read apploader header */
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ret = WDVD_Read(buffer, 0x20, APPLDR_OFFSET);
if (ret < 0) return ret;
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/* Calculate apploader length */
appldr_len = buffer[5] + buffer[6];
/* Read apploader code */
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ret = WDVD_Read(appldr, appldr_len, APPLDR_OFFSET + 0x20);
if (ret < 0) return ret;
/* Set apploader entry function */
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appldr_entry = (app_entry) buffer[4];
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/* Call apploader entry */
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appldr_entry(&appldr_init, &appldr_main, &appldr_final);
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/* Initialize apploader */
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appldr_init(gprintf);
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if (error002fix != 0)
{
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/* ERROR 002 fix (thanks to WiiPower for sharing this)*/
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*(u32 *) 0x80003188 = *(u32 *) 0x80003140;
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}
u32 dolStart = 0x90000000;
u32 dolEnd = 0x0;
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for (;;)
{
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void *dst = NULL;
int len = 0, offset = 0;
/* Run apploader main function */
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ret = appldr_main(&dst, &len, &offset);
if (!ret) break;
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/* Read data from DVD */
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WDVD_Read(dst, len, (u64) (offset << 2));
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gamepatches(dst, len, videoSelected, patchcountrystring, vipatch, cheat, fix002);
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DCFlushRange(dst, len);
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if ((u32) dst < dolStart) dolStart = (u32) dst;
if ((u32) dst + len > dolEnd) dolEnd = (u32) dst + len;
}
//this patch should be run on the entire dol at 1 time
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if (!alternatedol && returnTo)
{
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if (PatchReturnTo((u32*) dolStart, dolEnd - dolStart, returnTo))
{
DCFlushRange((u32*) dolStart, dolEnd - dolStart);
}
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}
*entry = appldr_final();
/** Load alternate dol if set **/
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if (alternatedol == 1)
{
wip_reset_counter();
void *dolbuffer = NULL;
int dollen = 0;
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bool dolloaded = Load_Dol(&dolbuffer, &dollen, dolpath, videoSelected, patchcountrystring, vipatch, cheat);
if (dolloaded)
{
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*entry = (entry_point) load_dol_image(dolbuffer);
}
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if (dolbuffer) free(dolbuffer);
}
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else if (alternatedol == 2)
{
wip_reset_counter();
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FST_ENTRY *fst = (FST_ENTRY *) *(u32 *) 0x80000038;
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*entry = (entry_point) Load_Dol_from_disc(fst[alternatedoloffset].fileoffset, videoSelected,
patchcountrystring, vipatch, cheat);
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if (*entry == 0) SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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}
return 0;
}