mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-11-29 06:34:17 +01:00
409 lines
9.4 KiB
C
409 lines
9.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ogcsys.h>
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#include <ogc/lwp_watchdog.h>
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#include <wiiuse/wpad.h>
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#include "patches/fst.h"
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#include "patches/gamepatches.h"
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#include "patches/wip.h"
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#include "apploader.h"
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#include "disc.h"
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#include "video.h"
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#include "wdvd.h"
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#include "frag.h"
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#include "alternatedol.h"
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#include "memory/memory.h"
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#include "wbfs.h"
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#include "../settings/SettingsEnums.h"
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#include "../gecko.h"
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#include "../fatmounter.h"
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/* Constants */
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#define PTABLE_OFFSET 0x40000
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#define WII_MAGIC 0x5D1C9EA3
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/* Disc pointers */
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static u32 *buffer = (u32 *) 0x93000000;
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static u8 *diskid = (u8 *) Disc_ID;
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void __Disc_SetLowMem(void)
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{
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*Sys_Magic = 0x0D15EA5E; // Standard Boot Code
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*Version = 0x00000001; // Version
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*Arena_L = 0x00000000; // Arena Low
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*BI2 = 0x817E5480; // BI2
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*Bus_Speed = 0x0E7BE2C0; // Console Bus Speed
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*CPU_Speed = 0x2B73A840; // Console CPU Speed
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/* Setup low memory */
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*Assembler = 0x38A00040; // Assembler
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*(u32 *) 0x800000E4 = 0x80431A80;
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*Dev_Debugger = 0x81800000; // Dev Debugger Monitor Address
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*Simulated_Mem = 0x01800000; // Simulated Memory Size
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*(vu32 *) 0xCD00643C = 0x00000000; // 32Mhz on Bus
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//If the game is sam & max: season 1 put this shit in
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if ((strncmp((char*) Disc_ID, "R3XE6U", 6) == 0) || (strncmp((char*) Disc_ID, "R3XP6V", 6) == 0))
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{
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*GameID_Address = 0x80000000; // Game ID Address
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}
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/* Copy disc ID */
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memcpy((void *) Online_Check, (void *) Disc_ID, 4);
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/* Flush cache */
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DCFlushRange((void *) Disc_ID, 0x3F00);
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}
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void __Disc_SetVMode(u8 videoselected)
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{
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GXRModeObj *vmode = NULL;
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u32 progressive, tvmode, vmode_reg = 0;
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/* Get video mode configuration */
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progressive = (CONF_GetProgressiveScan() > 0) && VIDEO_HaveComponentCable();
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tvmode = CONF_GetVideo();
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/* Select video mode register */
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switch (tvmode)
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{
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case CONF_VIDEO_PAL:
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vmode_reg = (CONF_GetEuRGB60() > 0) ? 5 : 1;
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break;
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case CONF_VIDEO_MPAL:
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vmode_reg = 4;
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break;
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case CONF_VIDEO_NTSC:
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vmode_reg = 0;
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break;
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}
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switch (videoselected)
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{
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case VIDEO_MODE_PAL50:
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vmode = &TVPal528IntDf;
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vmode_reg = (vmode->viTVMode) >> 2;
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break;
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case VIDEO_MODE_PAL60:
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vmode = (progressive) ? &TVNtsc480Prog : &TVEurgb60Hz480IntDf;
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vmode_reg = (vmode->viTVMode) >> 2;
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break;
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case VIDEO_MODE_NTSC:
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vmode = (progressive) ? &TVNtsc480Prog : &TVNtsc480IntDf;
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vmode_reg = (vmode->viTVMode) >> 2;
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break;
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default:
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case VIDEO_MODE_SYSDEFAULT:
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// vmode = VIDEO_GetPreferredMode(NULL);
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break;
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case VIDEO_MODE_DISCDEFAULT:
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/* Select video mode */
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switch (diskid[3])
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{
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/* PAL */
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case 'P':
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case 'D':
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case 'F':
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case 'I':
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case 'S':
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case 'H':
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case 'X':
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case 'Y':
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case 'Z':
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if (tvmode != CONF_VIDEO_PAL)
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{
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vmode_reg = 5;
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vmode = (progressive) ? &TVNtsc480Prog : &TVEurgb60Hz480IntDf;
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}
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break;
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/* NTSC or unknown */
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case 'E':
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case 'J':
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case 'K':
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case 'W':
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if (tvmode != CONF_VIDEO_NTSC)
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{
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vmode_reg = 0;
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vmode = (progressive) ? &TVNtsc480Prog : &TVNtsc480IntDf;
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}
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break;
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}
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break;
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}
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/* Set video mode register */
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*Video_Mode = vmode_reg;
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/* Set video mode */
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if (vmode)
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{
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VIDEO_Configure(vmode);
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/* Setup video */
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VIDEO_SetBlack(FALSE);
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VIDEO_Flush();
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VIDEO_WaitVSync();
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if (vmode->viTVMode & VI_NON_INTERLACE) VIDEO_WaitVSync();
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}
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gprintf("Video mode - %s\n", ((progressive) ? "progressive" : "interlaced"));
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}
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void __Disc_SetTime(void)
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{
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/* Extern */
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extern void settime(u64);
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/* Set proper time */
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settime(secs_to_ticks( time( NULL ) - 946684800 ));
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}
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s32 __Disc_FindPartition(u64 *outbuf)
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{
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u64 offset = 0, table_offset = 0;
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u32 cnt, nb_partitions;
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s32 ret;
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/* Read partition info */
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ret = WDVD_UnencryptedRead(buffer, 0x20, PTABLE_OFFSET);
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if (ret < 0) return ret;
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/* Get data */
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nb_partitions = buffer[0];
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table_offset = buffer[1] << 2;
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/* Read partition table */
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ret = WDVD_UnencryptedRead(buffer, 0x20, table_offset);
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if (ret < 0) return ret;
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/* Find game partition */
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for (cnt = 0; cnt < nb_partitions; cnt++)
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{
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u32 type = buffer[cnt * 2 + 1];
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/* Game partition */
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if (!type) offset = buffer[cnt * 2] << 2;
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}
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/* No game partition found */
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if (!offset) return -1;
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/* Set output buffer */
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*outbuf = offset;
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return 0;
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}
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s32 Disc_Init(void)
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{
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/* Init DVD subsystem */
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return WDVD_Init();
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}
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s32 Disc_Open(void)
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{
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s32 ret;
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/* Reset drive */
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ret = WDVD_Reset();
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if (ret < 0) return ret;
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/* Read disc ID */
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return WDVD_ReadDiskId(diskid);
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}
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s32 Disc_Wait(void)
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{
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u32 cover = 0;
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s32 ret;
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/* Wait for disc */
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while (!(cover & 0x2))
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{
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/* Get cover status */
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ret = WDVD_GetCoverStatus(&cover);
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if (ret < 0) return ret;
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}
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return 0;
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}
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s32 Disc_SetUSB(const u8 *id)
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{
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if (wbfs_part_fs)
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return set_frag_list((u8 *) id);
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u32 part = wbfs_part_idx ? wbfs_part_idx - 1 : 0;
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/* Set USB mode */
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return WDVD_SetUSBMode((u8 *) id, part);
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}
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s32 Disc_ReadHeader(void *outbuf)
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{
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/* Read disc header */
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return WDVD_UnencryptedRead(outbuf, sizeof(struct discHdr), 0);
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}
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s32 Disc_IsWii(void)
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{
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struct discHdr *header = (struct discHdr *) buffer;
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s32 ret;
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/* Read disc header */
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ret = Disc_ReadHeader(header);
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if (ret < 0) return ret;
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/* Check magic word */
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if (header->magic != WII_MAGIC) return -1;
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return 0;
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}
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s32 Disc_JumpToEntrypoint(u8 videoselected, bool enablecheat)
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{
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/* Set an appropiate video mode */
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__Disc_SetVMode(videoselected);
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/* Set time */
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__Disc_SetTime();
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// Anti-green screen fix
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VIDEO_SetBlack(TRUE);
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VIDEO_Flush();
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VIDEO_WaitVSync();
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VIDEO_WaitVSync();
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gprintf("USB Loader GX is done.\n");
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/* Shutdown IOS subsystems */
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extern void __exception_closeall();
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u32 level = IRQ_Disable();
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__IOS_ShutdownSubsystems();
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__exception_closeall();
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if (enablecheat)
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{
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__asm__(
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"lis %r3, AppEntrypoint@h\n"
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"ori %r3, %r3, AppEntrypoint@l\n"
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"lwz %r3, 0(%r3)\n"
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"mtlr %r3\n"
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"lis %r3, 0x8000\n"
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"ori %r3, %r3, 0x18A8\n"
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"mtctr %r3\n"
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"bctr\n"
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);
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}
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else
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{
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__asm__(
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"lis %r3, AppEntrypoint@h\n"
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"ori %r3, %r3, AppEntrypoint@l\n"
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"lwz %r3, 0(%r3)\n"
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"mtlr %r3\n"
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"blr\n"
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);
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}
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IRQ_Restore(level);
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return 0;
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}
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void PatchCountryStrings(void *Address, int Size)
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{
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u8 SearchPattern[4] = { 0x00, 0x00, 0x00, 0x00 };
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u8 PatchData[4] = { 0x00, 0x00, 0x00, 0x00 };
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u8 *Addr = (u8*) Address;
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int wiiregion = CONF_GetRegion();
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switch (wiiregion)
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{
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case CONF_REGION_JP:
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SearchPattern[0] = 0x00;
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SearchPattern[1] = 0x4A; // J
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SearchPattern[2] = 0x50; // P
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break;
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case CONF_REGION_EU:
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SearchPattern[0] = 0x02;
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SearchPattern[1] = 0x45; // E
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SearchPattern[2] = 0x55; // U
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break;
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case CONF_REGION_KR:
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SearchPattern[0] = 0x04;
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SearchPattern[1] = 0x4B; // K
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SearchPattern[2] = 0x52; // R
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break;
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case CONF_REGION_CN:
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SearchPattern[0] = 0x05;
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SearchPattern[1] = 0x43; // C
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SearchPattern[2] = 0x4E; // N
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break;
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case CONF_REGION_US:
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default:
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SearchPattern[0] = 0x01;
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SearchPattern[1] = 0x55; // U
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SearchPattern[2] = 0x53; // S
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}
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switch (diskid[3])
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{
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case 'J':
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PatchData[1] = 0x4A; // J
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PatchData[2] = 0x50; // P
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break;
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case 'D':
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case 'F':
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case 'P':
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case 'X':
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case 'Y':
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PatchData[1] = 0x45; // E
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PatchData[2] = 0x55; // U
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break;
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case 'E':
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default:
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PatchData[1] = 0x55; // U
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PatchData[2] = 0x53; // S
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}
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while (Size >= 4)
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{
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if (Addr[0] == SearchPattern[0] && Addr[1] == SearchPattern[1] && Addr[2] == SearchPattern[2] && Addr[3]
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== SearchPattern[3])
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{
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//*Addr = PatchData[0];
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Addr += 1;
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*Addr = PatchData[1];
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Addr += 1;
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*Addr = PatchData[2];
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Addr += 1;
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//*Addr = PatchData[3];
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Addr += 1;
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Size -= 4;
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}
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else
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{
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Addr += 4;
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Size -= 4;
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}
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}
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}
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