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make it able to switch between DS and DSi modes

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This commit is contained in:
Arisotura
2020-06-01 20:36:30 +02:00
parent d7b846619b
commit 43e045357f
16 changed files with 393 additions and 108 deletions
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163
src/frontend/Util_ROM.cpp
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@ -96,6 +96,42 @@ int VerifyDSBIOS()
return Load_OK;
}
int VerifyDSiBIOS()
{
FILE* f;
long len;
// TODO: check the first 32 bytes
f = Platform::OpenLocalFile(Config::DSiBIOS9Path, "rb");
if (!f) return Load_DSiBIOS9Missing;
fseek(f, 0, SEEK_END);
len = ftell(f);
if (len != 0x10000)
{
fclose(f);
return Load_DSiBIOS9Bad;
}
fclose(f);
f = Platform::OpenLocalFile(Config::DSiBIOS7Path, "rb");
if (!f) return Load_DSiBIOS7Missing;
fseek(f, 0, SEEK_END);
len = ftell(f);
if (len != 0x10000)
{
fclose(f);
return Load_DSiBIOS7Bad;
}
fclose(f);
return Load_OK;
}
int VerifyDSFirmware()
{
FILE* f;
@ -110,7 +146,6 @@ int VerifyDSFirmware()
{
// 128KB firmware, not bootable
fclose(f);
return Load_OK; // FIXME!!!!
return Load_FirmwareNotBootable;
}
else if (len != 0x40000 && len != 0x80000)
@ -124,6 +159,45 @@ int VerifyDSFirmware()
return Load_OK;
}
int VerifyDSiFirmware()
{
FILE* f;
long len;
f = Platform::OpenLocalFile(Config::DSiFirmwarePath, "rb");
if (!f) return Load_FirmwareMissing;
fseek(f, 0, SEEK_END);
len = ftell(f);
if (len != 0x20000)
{
// not 128KB
// TODO: check whether those work
fclose(f);
return Load_FirmwareBad;
}
fclose(f);
return Load_OK;
}
int VerifyDSiNAND()
{
FILE* f;
long len;
f = Platform::OpenLocalFile(Config::DSiNANDPath, "rb");
if (!f) return Load_DSiNANDMissing;
// TODO: some basic checks
// check that it has the nocash footer, and all
fclose(f);
return Load_OK;
}
int LoadBIOS()
{
int res;
@ -131,8 +205,22 @@ int LoadBIOS()
res = VerifyDSBIOS();
if (res != Load_OK) return res;
res = VerifyDSFirmware();
if (res != Load_OK) return res;
if (Config::ConsoleType == 1)
{
res = VerifyDSiBIOS();
if (res != Load_OK) return res;
res = VerifyDSiFirmware();
if (res != Load_OK) return res;
res = VerifyDSiNAND();
if (res != Load_OK) return res;
}
else
{
res = VerifyDSFirmware();
if (res != Load_OK) return res;
}
// TODO:
// original code in the libui frontend called NDS::LoadGBAROM() if needed
@ -142,6 +230,7 @@ int LoadBIOS()
ROMPath[ROMSlot_NDS][0] = '\0';
SRAMPath[ROMSlot_NDS][0] = '\0';
NDS::SetConsoleType(Config::ConsoleType);
NDS::LoadBIOS();
SavestateLoaded = false;
@ -154,16 +243,39 @@ int LoadROM(const char* file, int slot)
int res;
bool directboot = Config::DirectBoot != 0;
if (Config::ConsoleType == 1 && slot == 1)
{
// cannot load a GBA ROM into a DSi
return Load_ROMLoadError;
}
res = VerifyDSBIOS();
if (res != Load_OK) return res;
res = VerifyDSFirmware();
if (res != Load_OK)
if (Config::ConsoleType == 1)
{
if (res == Load_FirmwareNotBootable)
directboot = true;
else
return res;
res = VerifyDSiBIOS();
if (res != Load_OK) return res;
res = VerifyDSiFirmware();
if (res != Load_OK) return res;
res = VerifyDSiNAND();
if (res != Load_OK) return res;
GBACart::Eject();
ROMPath[ROMSlot_GBA][0] = '\0';
}
else
{
res = VerifyDSFirmware();
if (res != Load_OK)
{
if (res == Load_FirmwareNotBootable)
directboot = true;
else
return res;
}
}
char oldpath[1024];
@ -177,6 +289,8 @@ int LoadROM(const char* file, int slot)
SetupSRAMPath(0);
SetupSRAMPath(1);
NDS::SetConsoleType(Config::ConsoleType);
if (slot == ROMSlot_NDS && NDS::LoadROM(ROMPath[slot], SRAMPath[slot], directboot))
{
SavestateLoaded = false;
@ -225,17 +339,36 @@ int Reset()
res = VerifyDSBIOS();
if (res != Load_OK) return res;
res = VerifyDSFirmware();
if (res != Load_OK)
if (Config::ConsoleType == 1)
{
if (res == Load_FirmwareNotBootable)
directboot = true;
else
return res;
res = VerifyDSiBIOS();
if (res != Load_OK) return res;
res = VerifyDSiFirmware();
if (res != Load_OK) return res;
res = VerifyDSiNAND();
if (res != Load_OK) return res;
GBACart::Eject();
ROMPath[ROMSlot_GBA][0] = '\0';
}
else
{
res = VerifyDSFirmware();
if (res != Load_OK)
{
if (res == Load_FirmwareNotBootable)
directboot = true;
else
return res;
}
}
SavestateLoaded = false;
NDS::SetConsoleType(Config::ConsoleType);
if (ROMPath[ROMSlot_NDS][0] == '\0')
{
NDS::LoadBIOS();