WiiFlow_Lite/source/loader/disc.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ogcsys.h>
#include <unistd.h>
#include <ogc/lwp_watchdog.h>
#include <wiiuse/wpad.h>
#include <ogc/machine/processor.h>
#include "apploader.h"
#include "disc.h"
#include "wdvd.h"
#include "sys.h"
#include "fst.h"
#include "videopatch.h"
#include "wbfs.h"
#include "patchcode.h"
#include "frag.h"
#include "usbstorage.h"
#include "wip.h"
#include "gecko.h"
#define ALIGNED(x) __attribute__((aligned(x)))
/* Constants */
#define PTABLE_OFFSET 0x40000
#define WII_MAGIC 0x5D1C9EA3
#define GC_MAGIC 0xC2339F3D
//appentrypoint
u32 appentrypoint;
/* Disc pointers */
static u32 *buffer = (u32 *)0x93000000;
static u8 *diskid = (u8 *)0x80000000;
GXRModeObj *disc_vmode = NULL;
GXRModeObj *vmode = NULL;
u32 vmode_reg = 0;
extern void __exception_closeall();
static u8 Tmd_Buffer[0x49e4 + 0x1C] ALIGNED(32);
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void __Disc_SetLowMem()
{
/* Setup low memory */
*(vu32 *)0x80000060 = 0x38A00040;
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*(vu32 *)0x800000E4 = 0x80431A80;
*(vu32 *)0x800000EC = 0x81800000; // Dev Debugger Monitor Address
*(vu32 *)0x800000F0 = 0x01800000; // Simulated Memory Size
*(vu32 *)0xCD00643C = 0x00000000; // 32Mhz on Bus
/* Copy disc ID (online check) */
memcpy((void *)0x80003180, (void *)0x80000000, 4);
// Patch in info missing from apploader reads
*Sys_Magic = 0x0d15ea5e;
*Version = 1;
*Arena_L = 0x00000000;
*BI2 = 0x817E5480;
*Bus_Speed = 0x0E7BE2C0;
*CPU_Speed = 0x2B73A840;
// From NeoGamme R4 (WiiPower)
*(vu32 *)0x800030F0 = 0x0000001C;
*(vu32 *)0x8000318C = 0x00000000;
*(vu32 *)0x80003190 = 0x00000000;
// Fix for Sam & Max (WiiPower)
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*(vu32 *)0x80003184 = 0x80000000;
/* Flush cache */
DCFlushRange((void *)0x80000000, 0x3F00);
}
GXRModeObj * __Disc_SelectVMode(u8 videoselected, u64 chantitle)
{
vmode = VIDEO_GetPreferredMode(0);
/* Get video mode configuration */
bool progressive = (CONF_GetProgressiveScan() > 0) && VIDEO_HaveComponentCable();
/* Select video mode register */
switch (CONF_GetVideo())
{
case CONF_VIDEO_PAL:
if (CONF_GetEuRGB60() > 0)
{
vmode_reg = VI_EURGB60;
vmode = progressive ? &TVNtsc480Prog : &TVEurgb60Hz480IntDf;
}
else
vmode_reg = VI_PAL;
break;
case CONF_VIDEO_MPAL:
vmode_reg = VI_MPAL;
break;
case CONF_VIDEO_NTSC:
vmode_reg = VI_NTSC;
break;
}
char Region;
if(chantitle != 0)
Region = ((u32)(chantitle) & 0xFFFFFFFF) % 256;
else Region = diskid[3];
switch (videoselected)
{
case 0: // DEFAULT (DISC/GAME)
/* Select video mode */
switch (Region)
{
case 'W':
break; // Don't overwrite wiiware video modes.
// PAL
case 'D':
case 'F':
case 'P':
case 'X':
case 'Y':
if (CONF_GetVideo() != CONF_VIDEO_PAL)
{
vmode_reg = VI_PAL;
vmode = progressive ? &TVNtsc480Prog : &TVNtsc480IntDf;
}
break;
// NTSC
case 'E':
case 'J':
default:
if (CONF_GetVideo() != CONF_VIDEO_NTSC)
{
vmode_reg = VI_NTSC;
vmode = progressive ? &TVNtsc480Prog : &TVEurgb60Hz480IntDf;
}
break;
}
break;
case 1: // PAL50
vmode = &TVPal528IntDf;
vmode_reg = vmode->viTVMode >> 2;
break;
case 2: // PAL60
vmode = progressive ? &TVNtsc480Prog : &TVEurgb60Hz480IntDf;
vmode_reg = progressive ? TVEurgb60Hz480Prog.viTVMode >> 2 : vmode->viTVMode >> 2;
break;
case 3: // NTSC
vmode = progressive ? &TVNtsc480Prog : &TVNtsc480IntDf;
vmode_reg = vmode->viTVMode >> 2;
break;
case 4: // AUTO PATCH TO SYSTEM
case 5: // SYSTEM
break;
case 6: // PROGRESSIVE 480P(NTSC + PATCH ALL)
vmode = &TVNtsc480Prog;
vmode_reg = vmode->viTVMode >> 2;
break;
default:
break;
}
disc_vmode = vmode;
return vmode;
}
void __Disc_SetVMode(void)
{
// Stop wait message thread
extern void HideWaitMessage();
HideWaitMessage();
/* Set video mode register */
*(vu32 *)0x800000CC = vmode_reg;
/* Set video mode */
if (vmode != 0) VIDEO_Configure(vmode);
/* Setup video */
VIDEO_SetBlack(TRUE);
VIDEO_Flush();
VIDEO_WaitVSync();
if (vmode->viTVMode & VI_NON_INTERLACE)
VIDEO_WaitVSync();
else while (VIDEO_GetNextField())
VIDEO_WaitVSync();
}
void __Disc_SetTime(void)
{
/* Set proper time */
settime(secs_to_ticks(time(NULL) - 946684800));
}
s32 __Disc_FindPartition(u64 *outbuf)
{
u64 offset = 0;
u32 cnt;
/* Read partition info */
s32 ret = WDVD_UnencryptedRead(buffer, 0x20, PTABLE_OFFSET);
if (ret < 0) return ret;
/* Get data */
u32 nb_partitions = buffer[0];
u64 table_offset = buffer[1] << 2;
if (nb_partitions > 8) return -1;
/* Read partition table */
ret = WDVD_UnencryptedRead(buffer, 0x20, table_offset);
if (ret < 0) return ret;
/* Find game partition */
for (cnt = 0; cnt < nb_partitions; cnt++)
{
u32 type = buffer[cnt * 2 + 1];
/* Game partition */
if(!type) offset = buffer[cnt * 2] << 2;
}
/* No game partition found */
if (!offset) return -1;
/* Set output buffer */
*outbuf = offset;
WDVD_Seek(offset);
return 0;
}
s32 Disc_Init(void)
{
/* Init DVD subsystem */
return WDVD_Init();
}
s32 Disc_Open(void)
{
/* Reset drive */
s32 ret = WDVD_Reset();
if (ret < 0) return ret;
memset(diskid, 0, 32);
/* Read disc ID */
ret = WDVD_ReadDiskId(diskid);
/* Directly set Audio Streaming for GC */
WDVD_setstreaming();
return ret;
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}
s32 Disc_Wait(void)
{
u32 cover = 0;
int icounter = 0;
/* Wait for disc */
while (!(cover & 0x2))
{
/* Get cover status */
s32 ret = WDVD_GetCoverStatus(&cover);
if (ret < 0) return ret;
// 10 tries to make sure it doesn<73>t "freeze" in Install dialog
// if no Game Disc is insert
icounter++;
sleep(1);
if(icounter > 10)
return -1;
}
return 0;
}
s32 Disc_SetUSB(const u8 *id)
{
if (id) return set_frag_list((u8 *) id);
return WDVD_SetUSBMode(wbfsDev, (u8 *) id, -1);
}
s32 Disc_ReadHeader(void *outbuf)
{
/* Read Wii disc header */
return WDVD_UnencryptedRead(outbuf, sizeof(struct discHdr), 0);
}
s32 Disc_ReadGCHeader(void *outbuf)
{
/* Read GC disc header */
return WDVD_UnencryptedRead(outbuf, sizeof(struct gc_discHdr), 0);
}
s32 Disc_Type(bool gc)
{
s32 ret;
u32 check;
u32 magic;
if (!gc)
{
check = WII_MAGIC;
struct discHdr *header = (struct discHdr *)buffer;
ret = Disc_ReadHeader(header);
magic = header->magic;
}
else
{
check = GC_MAGIC;
struct gc_discHdr *header = (struct gc_discHdr *)buffer;
ret = Disc_ReadGCHeader(header);
magic = header->magic;
}
if (ret < 0) return ret;
/* Check magic word */
if (magic != check) return -1;
return 0;
}
s32 Disc_IsWii(void)
{
return Disc_Type(0);
}
s32 Disc_IsGC(void)
{
return Disc_Type(1);
}
s32 Disc_BootPartition(u64 offset, u8 vidMode, bool vipatch, bool countryString, u8 patchVidMode)
{
entry_point p_entry;
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IOSReloadBlock(IOS_GetVersion());
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s32 ret = WDVD_OpenPartition(offset, 0, 0, 0, Tmd_Buffer);
if (ret < 0) return ret;
/* Select an appropriate video mode */
__Disc_SelectVMode(vidMode, 0);
/* Setup low memory */;
__Disc_SetLowMem();
/* Run apploader */
ret = Apploader_Run(&p_entry, vidMode, vmode, vipatch, countryString, patchVidMode);
free_wip();
if (ret < 0) return ret;
if (hooktype != 0)
ocarina_do_code();
gprintf("\n\nEntry Point is: %0x8\n", p_entry);
// gprintf("Lowmem:\n\n");
// ghexdump((void*)0x80000000, 0x3f00);
/* Set time */
__Disc_SetTime();
/* Set an appropriate video mode */
__Disc_SetVMode();
u8 temp_data[4];
// fix for PeppaPig
memcpy((char *) &temp_data, (void*)0x800000F4,4);
usleep(100 * 1000);
/* Shutdown IOS subsystems */
SYS_ResetSystem(SYS_SHUTDOWN, 0, 0);
/* Originally from tueidj - taken from NeoGamme (thx) */
*(vu32*)0xCC003024 = 1;
// fix for PeppaPig
memcpy((void*)0x800000F4,(char *) &temp_data, 4);
appentrypoint = (u32) p_entry;
gprintf("Jumping to entrypoint\n");
if (hooktype != 0)
{
__asm__(
"lis %r3, appentrypoint@h\n"
"ori %r3, %r3, appentrypoint@l\n"
"lwz %r3, 0(%r3)\n"
"mtlr %r3\n"
"nop\n"
"lis %r3, 0x8000\n"
"nop\n"
"ori %r3, %r3, 0x18A8\n"
"nop\n"
"mtctr %r3\n"
"bctr\n"
);
}
else
{
__asm__(
"lis %r3, appentrypoint@h\n"
"ori %r3, %r3, appentrypoint@l\n"
"lwz %r3, 0(%r3)\n"
"mtlr %r3\n"
"blr\n"
);
}
return 0;
}
s32 Disc_WiiBoot(u8 vidMode, bool vipatch, bool countryString, u8 patchVidModes)
{
u64 offset;
/* Find game partition offset */
s32 ret = __Disc_FindPartition(&offset);
if (ret < 0) return ret;
/* Boot partition */
return Disc_BootPartition(offset, vidMode, vipatch, countryString, patchVidModes);
}