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Cart refactor (#1073)

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complete cart-interface refactor, will make this code a lot easier to deal with
This commit is contained in:
Arisotura
2021-04-25 00:48:02 +02:00
committed by GitHub
parent ede6e832d8
commit 1846a71265
12 changed files with 2152 additions and 1428 deletions
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161
src/NDSCart.h
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@ -24,14 +24,167 @@
namespace NDSCart
{
// CartCommon -- base code shared by all cart types
class CartCommon
{
public:
CartCommon(u8* rom, u32 len, u32 chipid);
virtual ~CartCommon();
virtual void Reset();
virtual void SetupDirectBoot();
virtual void DoSavestate(Savestate* file);
virtual void LoadSave(const char* path, u32 type);
virtual void RelocateSave(const char* path, bool write);
virtual int ImportSRAM(const u8* data, u32 length);
virtual void FlushSRAMFile();
virtual int ROMCommandStart(u8* cmd, u8* data, u32 len);
virtual void ROMCommandFinish(u8* cmd, u8* data, u32 len);
virtual u8 SPIWrite(u8 val, u32 pos, bool last);
protected:
void ReadROM(u32 addr, u32 len, u8* data, u32 offset);
void SetIRQ();
u8* ROM;
u32 ROMLength;
u32 ChipID;
bool IsDSi;
u32 CmdEncMode;
u32 DataEncMode;
};
// CartRetail -- regular retail cart (ROM, SPI SRAM)
class CartRetail : public CartCommon
{
public:
CartRetail(u8* rom, u32 len, u32 chipid);
virtual ~CartRetail() override;
virtual void Reset() override;
virtual void DoSavestate(Savestate* file) override;
virtual void LoadSave(const char* path, u32 type) override;
virtual void RelocateSave(const char* path, bool write) override;
virtual int ImportSRAM(const u8* data, u32 length) override;
virtual void FlushSRAMFile() override;
virtual int ROMCommandStart(u8* cmd, u8* data, u32 len) override;
virtual u8 SPIWrite(u8 val, u32 pos, bool last) override;
protected:
void ReadROM_B7(u32 addr, u32 len, u8* data, u32 offset);
u8 SRAMWrite_EEPROMTiny(u8 val, u32 pos, bool last);
u8 SRAMWrite_EEPROM(u8 val, u32 pos, bool last);
u8 SRAMWrite_FLASH(u8 val, u32 pos, bool last);
u8* SRAM;
u32 SRAMLength;
u32 SRAMType;
char SRAMPath[1024];
bool SRAMFileDirty;
u8 SRAMCmd;
u32 SRAMAddr;
u8 SRAMStatus;
};
// CartRetailNAND -- retail cart with NAND SRAM (WarioWare DIY, Jam with the Band, ...)
class CartRetailNAND : public CartRetail
{
public:
CartRetailNAND(u8* rom, u32 len, u32 chipid);
~CartRetailNAND() override;
void Reset() override;
void DoSavestate(Savestate* file);
void LoadSave(const char* path, u32 type) override;
int ImportSRAM(const u8* data, u32 length) override;
int ROMCommandStart(u8* cmd, u8* data, u32 len) override;
void ROMCommandFinish(u8* cmd, u8* data, u32 len) override;
u8 SPIWrite(u8 val, u32 pos, bool last) override;
private:
void BuildSRAMID();
u32 SRAMBase;
u32 SRAMWindow;
u8 SRAMWriteBuffer[0x800];
u32 SRAMWritePos;
};
// CartRetailIR -- SPI IR device and SRAM
class CartRetailIR : public CartRetail
{
public:
CartRetailIR(u8* rom, u32 len, u32 chipid, u32 irversion);
~CartRetailIR() override;
void Reset() override;
void DoSavestate(Savestate* file) override;
u8 SPIWrite(u8 val, u32 pos, bool last) override;
private:
u32 IRVersion;
u8 IRCmd;
};
// CartRetailBT - Pok<6F>mon Typing Adventure (SPI BT controller)
class CartRetailBT : public CartRetail
{
public:
CartRetailBT(u8* rom, u32 len, u32 chipid);
~CartRetailBT() override;
void Reset() override;
void DoSavestate(Savestate* file) override;
u8 SPIWrite(u8 val, u32 pos, bool last) override;
};
// CartHomebrew -- homebrew 'cart' (no SRAM, DLDI)
class CartHomebrew : public CartCommon
{
public:
CartHomebrew(u8* rom, u32 len, u32 chipid);
~CartHomebrew() override;
void Reset() override;
void DoSavestate(Savestate* file) override;
int ROMCommandStart(u8* cmd, u8* data, u32 len) override;
void ROMCommandFinish(u8* cmd, u8* data, u32 len) override;
private:
void ApplyDLDIPatch(const u8* patch, u32 len);
void ReadROM_B7(u32 addr, u32 len, u8* data, u32 offset);
FILE* SDFile;
};
extern u16 SPICnt;
extern u32 ROMCnt;
extern u8 ROMCommand[8];
extern u32 ROMDataOut;
extern u8 EncSeed0[5];
extern u8 EncSeed1[5];
extern u8* CartROM;
extern u32 CartROMSize;