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#include <revolution/nand.h>
#include <revolution/fs.h>
static const char* USER_DIR_LIST[] = {
"/meta",
"/ticket",
"/title/00010000",
"/title/00010001",
"/title/00010003",
"/title/00010004",
"/title/00010005",
"/title/00010006",
"/title/00010007",
"/shared2/title",
NULL,
};
s32 nandCalcUsage(u32* fsBlock, u32* inode, const char* dir_list[]) {
ISFSError ret = ISFS_ERROR_UNKNOWN;
*fsBlock = 0;
*inode = 0;
while (*dir_list) {
u32 blk = 0;
u32 node = 0;
ret = ISFS_GetUsage((const u8*)*dir_list, &blk, &node);
if (ret == ISFS_ERROR_OK) {
*fsBlock += blk;
*inode += node;
} else if (ret == ISFS_ERROR_NOEXISTS) {
ret = ISFS_ERROR_OK;
} else {
break;
}
++dir_list;
}
return ret;
}
ISFSError nandCalcUserUsage(u32* fsBlock, u32* inode) {
return nandCalcUsage(fsBlock, inode, USER_DIR_LIST);
}
static u32 nandCheck(const u32 reqBlock, const u32 reqInode, const u32 homeBlock, const u32 homeInode, const u32 userBlock, const u32 userInode) {
u32 answer = 0;
if (homeBlock + reqBlock > 0x400) {
answer |= 1;
}
if (homeInode + reqInode > 0x21) {
answer |= 2;
}
if (userBlock + reqBlock > 0x4400) {
answer |= 4;
}
if (userInode + reqInode > 0xFA0) {
answer |= 8;
}
return answer;
}
s32 NANDCheck(const u32 fsBlock, const u32 inode, u32* answer) {
ISFSError ret = ISFS_ERROR_UNKNOWN;
u32 homeBlocks = 0xFFFFFFFF;
u32 homeInodes = 0xFFFFFFFF;
u32 userBlocks = 0xFFFFFFFF;
u32 userInodes = 0xFFFFFFFF;
if (!nandIsInitialized()) {
return NAND_RESULT_FATAL_ERROR;
}
ret = ISFS_GetUsage((const u8*)nandGetHomeDir(), &homeBlocks, &homeInodes);
if (ret != ISFS_ERROR_OK) {
return nandConvertErrorCode(ret);
}
ret = nandCalcUserUsage(&userBlocks, &userInodes);
if (ret != ISFS_ERROR_OK) {
return nandConvertErrorCode(ret);
}
*answer = nandCheck(fsBlock, inode, homeBlocks, homeInodes, userBlocks, userInodes);
return NAND_RESULT_OK;
}
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