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deviceHandler-Qoob.c
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deviceHandler-Qoob.c
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/* deviceHandler-Qoob.c
- device implementation for Qoob Flash
by emu_kidid
*/
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <malloc.h>
#include <ogc/dvd.h>
#include <ogc/machine/processor.h>
#include <sdcard/gcsd.h>
#include "deviceHandler.h"
#include "gui/FrameBufferMagic.h"
#include "gui/IPLFontWrite.h"
#include "swiss.h"
#include "main.h"
#include "exi.h"
typedef struct qoobEntryHeader qoobEntryHeader;
struct qoobEntryHeader {
u32 entry_type;
char entry_name[0xF4];
u32 _reserved;
u32 size;
};
#define QOOB_BLOCK_SIZE (65536)
#define QOOB_FILE_APPL (0x4170706C) //Appl (likely never used)
#define QOOB_FILE_BIOS_WRONG (0x42494F53) //BIOS
#define QOOB_FILE_BIOS (0x28432920) //"(C) "
#define QOOB_FILE_QPIC (0x51504943) //QPIC
#define QOOB_FILE_QCFG (0x51434647) //QCFG
#define QOOB_FILE_QCHT (0x51434854) //QCHT
#define QOOB_FILE_QCHE (0x51434845) //QCHE
#define QOOB_FILE_BIN (0x42494E00) //BIN.
#define QOOB_FILE_DOL (0x444F4C00) //DOL.
#define QOOB_FILE_ELF (0x454C4600) //ELF.
#define QOOB_FILE_SWIS (0x53574953) //SWIS (custom for Swiss to be able to put whatever on Qoob Flash)
char iplBlock[256] __attribute__((aligned(32)));
file_handle initial_Qoob =
{ "qoob:/", // directory
0ULL, // fileBase (u64)
0, // offset
0, // size
IS_DIR,
0
};
device_info initial_Qoob_info = {
0x200000,
0x200000,
false
};
device_info* deviceHandler_Qoob_info(file_handle* file) {
return &initial_Qoob_info;
}
char *getQoobExtension(qoobEntryHeader* entryHeader) {
switch(entryHeader->entry_type) {
case QOOB_FILE_ELF:
return "elf";
case QOOB_FILE_APPL:
return "appl";
case QOOB_FILE_BIOS_WRONG:
case QOOB_FILE_BIOS:
return "gcb";
case QOOB_FILE_QPIC:
return "m1v";
case QOOB_FILE_QCFG:
return "cfg";
case QOOB_FILE_QCHT:
return "qch";
case QOOB_FILE_QCHE:
return "qche";
case QOOB_FILE_BIN:
return "bin";
case QOOB_FILE_DOL:
return "dol";
default:
return NULL;
}
}
u32 sizeToBlocks(u32 size) {
return (size + QOOB_BLOCK_SIZE - 1) / QOOB_BLOCK_SIZE;
}
s32 deviceHandler_Qoob_readDir(file_handle* ffile, file_handle** dir, u32 type) {
uiDrawObj_t *msgBox = DrawPublish(DrawProgressBar(true, 0, "Reading Qoob"));
// Set everything up to read
int num_entries = 1, i = 1, block = 0;
*dir = calloc(num_entries, sizeof(file_handle));
concat_path((*dir)[0].name, ffile->name, "..");
(*dir)[0].fileAttrib = IS_SPECIAL;
u32 usedSpace = 0;
while(block <0x200000) {
char entryName[128];
__SYS_ReadROM(iplBlock, sizeof(qoobEntryHeader), block);
qoobEntryHeader entryHeader;
memcpy(&entryHeader, &iplBlock, sizeof(qoobEntryHeader));
switch(entryHeader.entry_type) {
case QOOB_FILE_ELF:
case QOOB_FILE_APPL:
case QOOB_FILE_BIOS_WRONG:
case QOOB_FILE_BIOS:
case QOOB_FILE_QPIC:
case QOOB_FILE_QCFG:
case QOOB_FILE_QCHT:
case QOOB_FILE_QCHE:
case QOOB_FILE_BIN:
case QOOB_FILE_DOL:
case QOOB_FILE_SWIS:
{
// Make sure we have room for this one
if(i == num_entries){
++num_entries;
*dir = reallocarray(*dir, num_entries, sizeof(file_handle));
}
memset(&(*dir)[i], 0, sizeof(file_handle));
memset(entryName, 0, 128);
// The windows flasher puts .dol files as "ELF" type, support this case.
if(entryHeader.entry_type == QOOB_FILE_ELF) {
__SYS_ReadROM(iplBlock, 256, block + sizeof(qoobEntryHeader));
if (*(u32*)&iplBlock[0] == 0x00000100) {
if(!endsWith(entryHeader.entry_name, ".dol")) {
snprintf(&entryName[0], 64, "%s.dol", entryHeader.entry_name);
}
else {
snprintf(&entryName[0], 64, "%s", entryHeader.entry_name);
}
}
}
else if(entryHeader.entry_type == QOOB_FILE_QCFG) {
snprintf(&entryName[0], 64, "qoob.%s", getQoobExtension(&entryHeader));
}
else if(entryHeader.entry_type == QOOB_FILE_QCHE) {
snprintf(&entryName[0], 64, "cheatengine.%s", getQoobExtension(&entryHeader));
}
if(!entryName[0]) {
char *ext = getQoobExtension(&entryHeader);
if(ext) {
snprintf(&entryName[0], 64, "%s.%s", entryHeader.entry_name, ext);
}
else {
snprintf(&entryName[0], 64, "%s", entryHeader.entry_name);
}
}
concat_path((*dir)[i].name, ffile->name, entryName);
(*dir)[i].fileBase = block;
(*dir)[i].size = sizeToBlocks(entryHeader.size) * QOOB_BLOCK_SIZE;
(*dir)[i].fileAttrib = IS_FILE;
usedSpace += (*dir)[i].size;
++i;
print_gecko("Found [%08X] entry, %08X in size\r\n", entryHeader.entry_type, entryHeader.size);
block += sizeToBlocks(entryHeader.size) * QOOB_BLOCK_SIZE;
break;
}
default:
print_gecko("unknown/empty block found at %08X [%08X]\r\n", block, entryHeader.entry_type);
block += QOOB_BLOCK_SIZE;
break;
}
}
initial_Qoob_info.freeSpace = initial_Qoob_info.totalSpace - usedSpace;
DrawDispose(msgBox);
return i;
}
s64 deviceHandler_Qoob_seekFile(file_handle* file, s64 where, u32 type) {
if(type == DEVICE_HANDLER_SEEK_SET) file->offset = where;
else if(type == DEVICE_HANDLER_SEEK_CUR) file->offset = file->offset + where;
else if(type == DEVICE_HANDLER_SEEK_END) file->offset = file->size + where;
return file->offset;
}
s32 deviceHandler_Qoob_readFile(file_handle* file, void* buffer, u32 length) {
if(!file->fileBase) {
return -1;
}
__SYS_ReadROM(buffer,length,file->fileBase+file->offset+sizeof(qoobEntryHeader));
return length;
}
extern unsigned char rom_read(int addr);
extern void rom_write(int addr, unsigned char c);
int erase_sector(int addr)
{
rom_write(0xAAA, 0xAA);
rom_write(0x555, 0x55);
rom_write(0xAAA, 0x80);
rom_write(0xAAA, 0xAA);
rom_write(0x555, 0x55);
rom_write(addr, 0x30);
printf("\r%08x erase..\n", addr);
while (rom_read(addr) != rom_read(addr));
return 0;
}
int is_eraseblock(int addr)
{
if (addr >= 0x10000)
return !(addr & 0xFFFF);
return ((addr == 0) || (addr == 0x4000) || (addr == 0x6000) || (addr == 0x8000));
}
int erase_qoob_rom(u32 dest, int len)
{
rom_write(0xAAA, 0xAA); rom_write(0x555, 0x55); rom_write(0xAAA, 0x20);
int addr;
print_gecko("erasing...\r\n");
for (addr = dest; addr < (dest + len); ++addr) {
if (is_eraseblock(addr)) {
print_gecko("erase_sector(%08X)\r\n", addr);
erase_sector(addr);
}
}
return 0;
}
int write_qoob_rom(unsigned char *src, u32 dest, int len)
{
print_gecko("Writing %08X to dest %08X with length %i\r\n", src, dest, len);
// CFI query
rom_write(0xAA, 0x98);
print_gecko("CFI data:\r\n");
int addr;
for (addr = 0; addr < 0x100; addr += 0x10)
{
int i;
for (i=0; i<0x10; i += 2)
print_gecko("%02x ", rom_read(addr + i));
for (i=0; i<0x10; i += 2)
{
int v = rom_read(addr + i);
print_gecko("%c", v >= 0x20 ? v : '.');
}
print_gecko("\r\n");
}
print_gecko("man id:\r\n");
int i;
for (i=0; i<10; ++i)
{
rom_write(0, 0xF0);
rom_write(0xAAA, 0xAA); rom_write(0x555, 0x55); rom_write(0xAAA, 0x90);
print_gecko("%02x ", rom_read(i * 2));
}
print_gecko("\r\n");
erase_qoob_rom(dest, len);
print_gecko("flashing...\r\n");
while (len)
{
rom_write(dest, 0xA0);
rom_write(dest, *src);
while (rom_read(dest) != *src);
++src;
++dest;
--len;
}
print_gecko("done!\r\n");
return 0;
}
// Assumes a single call to write a file.
s32 deviceHandler_Qoob_writeFile(file_handle* file, const void* buffer, u32 length) {
if(!length) return 0;
if(!file->fileBase) {
// check for enough contiguous blocks because files can only be contiguous
u32 block = 0;
u32 largestEmptyBlock = 0;
u32 largestEmptyBlockSize = 0;
u32 emptyBlock = 0;
u32 emptyBlockSize = 0;
while(block <0x200000) {
memset(iplBlock, 0, 256);
__SYS_ReadROM(iplBlock,sizeof(qoobEntryHeader),block);
qoobEntryHeader entryHeader;
memcpy(&entryHeader, &iplBlock, sizeof(qoobEntryHeader));
print_gecko("Checking block at %08X\r\n", block);
switch(entryHeader.entry_type) {
case QOOB_FILE_APPL:
case QOOB_FILE_BIOS_WRONG:
case QOOB_FILE_BIOS:
case QOOB_FILE_QPIC:
case QOOB_FILE_QCFG:
case QOOB_FILE_QCHT:
case QOOB_FILE_QCHE:
case QOOB_FILE_BIN:
case QOOB_FILE_DOL:
case QOOB_FILE_ELF:
case QOOB_FILE_SWIS:
if(emptyBlock) {
if(emptyBlockSize > largestEmptyBlockSize) {
largestEmptyBlock = emptyBlock;
largestEmptyBlockSize = emptyBlockSize;
print_gecko("Largest empty block so far is %08X with size %08X\r\n", largestEmptyBlock, largestEmptyBlockSize);
}
emptyBlock = 0;
emptyBlockSize = 0;
}
print_gecko("Found [%08X] entry, %08X in size\r\n", entryHeader.entry_type, entryHeader.size);
block += sizeToBlocks(entryHeader.size) * QOOB_BLOCK_SIZE;
break;
case 0xFFFFFFFF:
print_gecko("empty block found at %08X [%08X]\r\n", block, entryHeader.entry_type);
if(!emptyBlock) {
emptyBlock = block;
}
emptyBlockSize += QOOB_BLOCK_SIZE;
block += QOOB_BLOCK_SIZE;
break;
default:
print_gecko("unknown block found at %08X [%08X]\r\n", block, entryHeader.entry_type);
if(emptyBlock) {
if(emptyBlockSize > largestEmptyBlockSize) {
largestEmptyBlock = emptyBlock;
largestEmptyBlockSize = emptyBlockSize;
print_gecko("Largest empty block so far is %08X with size %08X\r\n", largestEmptyBlock, largestEmptyBlockSize);
}
emptyBlock = 0;
emptyBlockSize = 0;
}
block += QOOB_BLOCK_SIZE;
break;
}
}
// If we were looking at an empty block but didn't terminate it:
if(emptyBlock) {
if(emptyBlockSize > largestEmptyBlockSize) {
largestEmptyBlock = emptyBlock;
largestEmptyBlockSize = emptyBlockSize;
print_gecko("Largest empty block so far is %08X with size %08X\r\n", largestEmptyBlock, largestEmptyBlockSize);
}
}
if(largestEmptyBlock) {
print_gecko("Largest empty block found at %08X with size %08X\r\n", largestEmptyBlock, largestEmptyBlockSize);
}
else {
print_gecko("No empty blocks found\r\n");
}
// No space.
if(!largestEmptyBlock || length > largestEmptyBlockSize-0x100) {
return -1;
}
file->fileBase = largestEmptyBlock;
// Make a header, write it.
qoobEntryHeader entryHeader;
memset(&entryHeader, 0, sizeof(qoobEntryHeader));
entryHeader.entry_type = endsWith(file->name,".dol") ? QOOB_FILE_ELF /*yes, these go in as "ELF" */ : QOOB_FILE_SWIS;
entryHeader.size = sizeToBlocks(length) * QOOB_BLOCK_SIZE;
snprintf(&entryHeader.entry_name[0], 64, "%s", getRelativeName(file->name));
write_qoob_rom((unsigned char*)&entryHeader, file->fileBase, sizeof(qoobEntryHeader));
}
// Write the file out
s32 written = write_qoob_rom((unsigned char*)buffer, file->fileBase + sizeof(qoobEntryHeader), length);
file->size += length;
file->offset += length;
return !written ? length : -1;
}
s32 deviceHandler_Qoob_deleteFile(file_handle* file) {
erase_qoob_rom(file->fileBase, file->size);
return 0;
}
bool deviceHandler_Qoob_test() {
// Read 1024 bytes from certain sections of the IPL Mask ROM and compare with Qoob enabled/disabled
char *qoobData = (char*)memalign(32, 0x400);
char *iplData = (char*)memalign(32, 0x400);
memset(qoobData, 0, 0x400);
memset(iplData, 0, 0x400);
ipl_set_config(0);
__SYS_ReadROM(qoobData,0x100,0);
__SYS_ReadROM(qoobData+0x100,0x100,0x80000);
__SYS_ReadROM(qoobData+0x200,0x100,0x1FCF00);
__SYS_ReadROM(qoobData+0x300,0x100,0x1FFF00);
ipl_set_config(6);
__SYS_ReadROM(iplData,0x100,0);
__SYS_ReadROM(iplData+0x100,0x100,0x80000);
__SYS_ReadROM(iplData+0x200,0x100,0x1FCF00);
__SYS_ReadROM(iplData+0x300,0x100,0x1FFF00);
bool qoobFound = memcmp(qoobData, iplData, 0x400) != 0;
free(qoobData);
free(iplData);
return qoobFound;
}
s32 deviceHandler_Qoob_init(file_handle* file) {
if(!deviceHandler_Qoob_test()) {
return ENODEV;
}
ipl_set_config(0);
return 0;
}
s32 deviceHandler_Qoob_deinit(file_handle* file) {
ipl_set_config(6);
return 0;
}
s32 deviceHandler_Qoob_closeFile(file_handle* file) {
return 0;
}
char* deviceHandler_Qoob_status(file_handle* file) {
return NULL;
}
DEVICEHANDLER_INTERFACE __device_qoob = {
.deviceUniqueId = DEVICE_ID_7,
.hwName = "Qoob Modchip",
.deviceName = "Qoob Pro",
.deviceDescription = "Qoob Pro Flash File System",
.deviceTexture = {TEX_QOOB, 82, 84, 96, 102},
.features = FEAT_READ|FEAT_WRITE,
.location = LOC_SYSTEM,
.initial = &initial_Qoob,
.test = deviceHandler_Qoob_test,
.info = deviceHandler_Qoob_info,
.init = deviceHandler_Qoob_init,
.readDir = deviceHandler_Qoob_readDir,
.seekFile = deviceHandler_Qoob_seekFile,
.readFile = deviceHandler_Qoob_readFile,
.writeFile = deviceHandler_Qoob_writeFile,
.closeFile = deviceHandler_Qoob_closeFile,
.deleteFile = deviceHandler_Qoob_deleteFile,
.deinit = deviceHandler_Qoob_deinit,
.status = deviceHandler_Qoob_status,
};