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keep only one handle of the NAND file around

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This commit is contained in:
RSDuck
2021-01-17 19:56:02 +01:00
parent 53d5def919
commit 1d6cc3c6ef
5 changed files with 60 additions and 46 deletions
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42
src/DSi.cpp
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@ -74,6 +74,9 @@ DSi_NDMA* NDMAs[8];
DSi_SDHost* SDMMC;
DSi_SDHost* SDIO;
FILE* SDMMCFile;
FILE* SDIOFile;
u64 ConsoleID;
u8 eMMC_CID[16];
@ -122,6 +125,8 @@ void DeInit()
delete SDMMC;
delete SDIO;
CloseDSiNAND();
}
void Reset()
@ -302,12 +307,11 @@ bool LoadNAND()
memset(NWRAMEnd, 0, sizeof(NWRAMEnd));
memset(NWRAMMask, 0, sizeof(NWRAMMask));
FILE* f = Platform::OpenLocalFile(Config::DSiNANDPath, "rb");
if (f)
if (SDMMCFile)
{
u32 bootparams[8];
fseek(f, 0x220, SEEK_SET);
fread(bootparams, 4, 8, f);
fseek(SDMMCFile, 0x220, SEEK_SET);
fread(bootparams, 4, 8, SDMMCFile);
printf("ARM9: offset=%08X size=%08X RAM=%08X size_aligned=%08X\n",
bootparams[0], bootparams[1], bootparams[2], bootparams[3]);
@ -320,8 +324,8 @@ bool LoadNAND()
MBK[1][8] = 0;
u32 mbk[12];
fseek(f, 0x380, SEEK_SET);
fread(mbk, 4, 12, f);
fseek(SDMMCFile, 0x380, SEEK_SET);
fread(mbk, 4, 12, SDMMCFile);
MapNWRAM_A(0, mbk[0] & 0xFF);
MapNWRAM_A(1, (mbk[0] >> 8) & 0xFF);
@ -375,12 +379,12 @@ bool LoadNAND()
AES_init_ctx_iv(&ctx, boot2key, boot2iv);
fseek(f, bootparams[0], SEEK_SET);
fseek(SDMMCFile, bootparams[0], SEEK_SET);
dstaddr = bootparams[2];
for (u32 i = 0; i < bootparams[3]; i += 16)
{
u8 data[16];
fread(data, 16, 1, f);
fread(data, 16, 1, SDMMCFile);
for (int j = 0; j < 16; j++) tmp[j] = data[15-j];
AES_CTR_xcrypt_buffer(&ctx, tmp, 16);
@ -400,12 +404,12 @@ bool LoadNAND()
AES_init_ctx_iv(&ctx, boot2key, boot2iv);
fseek(f, bootparams[4], SEEK_SET);
fseek(SDMMCFile, bootparams[4], SEEK_SET);
dstaddr = bootparams[6];
for (u32 i = 0; i < bootparams[7]; i += 16)
{
u8 data[16];
fread(data, 16, 1, f);
fread(data, 16, 1, SDMMCFile);
for (int j = 0; j < 16; j++) tmp[j] = data[15-j];
AES_CTR_xcrypt_buffer(&ctx, tmp, 16);
@ -427,25 +431,22 @@ bool LoadNAND()
// read the nocash footer
fseek(f, -0x40, SEEK_END);
fseek(SDMMCFile, -0x40, SEEK_END);
char nand_footer[16];
const char* nand_footer_ref = "DSi eMMC CID/CPU";
fread(nand_footer, 1, 16, f);
fread(nand_footer, 1, 16, SDMMCFile);
if (memcmp(nand_footer, nand_footer_ref, 16))
{
printf("ERROR: NAND missing nocash footer\n");
fclose(f);
return false;
}
fread(eMMC_CID, 1, 16, f);
fread(&ConsoleID, 1, 8, f);
fread(eMMC_CID, 1, 16, SDMMCFile);
fread(&ConsoleID, 1, 8, SDMMCFile);
printf("eMMC CID: "); printhex(eMMC_CID, 16);
printf("Console ID: %016llX\n", ConsoleID);
fclose(f);
}
memset(ITCMInit, 0, 0x8000);
@ -463,6 +464,13 @@ bool LoadNAND()
return true;
}
void CloseDSiNAND()
{
if (DSi::SDMMCFile)
fclose(DSi::SDMMCFile);
if (DSi::SDIOFile)
fclose(DSi::SDIOFile);
}
void RunNDMAs(u32 cpu)
{