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#include <revolution/os.h>
#include <revolution/nand.h>
static u32 CheckSum(OSNandbootInfo* info) {
u32* ptr, i, sum;
ptr = (u32*)&(info->ArgOffset);
sum = 0;
for (i = 0; i < (sizeof(OSNandbootInfo) - 4) / 4; i++) {
sum = sum + *ptr;
ptr++;
}
return sum;
}
BOOL __OSCreateNandbootInfo(void) {
NANDStatus status;
s32 result;
result = NANDPrivateGetStatus("/shared2/sys/NANDBOOTINFO", &status);
if (result == 0 && status.permission == 0x3F) {
return TRUE;
} else if (result == 0 && status.permission != 0x3F) {
result = NANDPrivateDelete("/shared2/sys/NANDBOOTINFO");
if (result != 0) {
return FALSE;
}
} else if (result == -12) {
} else {
return FALSE;
}
result = NANDPrivateCreate("/shared2/sys/NANDBOOTINFO", 63, 0);
if (result != 0) {
return FALSE;
}
return TRUE;
}
BOOL __OSWriteNandbootInfo(OSNandbootInfo* info) {
NANDFileInfo fileInfo;
s32 result;
ASSERTMSGLINE(145, !((u32)info & 0x1F), "OSNandbootInfo needs 32 byte alignment.");
info->CheckSum = CheckSum(info);
result = NANDPrivateOpen("/shared2/sys/NANDBOOTINFO", &fileInfo, 2);
if (result == 0) {
result = NANDWrite(&fileInfo, info, sizeof(OSNandbootInfo));
if (result != sizeof(OSNandbootInfo)) {
NANDClose(&fileInfo);
return FALSE;
}
result = NANDClose(&fileInfo);
if (result != 0) {
return FALSE;
}
} else {
return FALSE;
}
return TRUE;
}
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