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#ifndef GUARD_GBA_FLASH_INTERNAL_H
#define GUARD_GBA_FLASH_INTERNAL_H
#define FLASH_BASE ((u8 *)0xE000000)
#define FLASH_WRITE(addr, data) ((*(vu8 *)(FLASH_BASE + (addr))) = (data))
#define FLASH_ROM_SIZE_1M 131072 // 1 megabit ROM
#define SECTORS_PER_BANK 16
struct FlashSector
{
u32 size;
u8 shift;
u16 count;
u16 top;
};
struct FlashType {
u32 romSize;
struct FlashSector sector;
u16 wait[2]; // game pak bus read/write wait
// TODO: add support for anonymous unions/structs if possible
union {
struct {
u8 makerId;
u8 deviceId;
} separate;
u16 joined;
} ids;
};
struct FlashSetupInfo
{
u16 (*programFlashSector)(u16, u8 *);
u16 (*eraseFlashChip)(void);
u16 (*eraseFlashSector)(u16);
u16 (*waitForFlashWrite)(u8, u8 *, u8);
const u16 *maxTime;
struct FlashType type;
};
extern u16 gFlashNumRemainingBytes;
extern u16 (*ProgramFlashSector)(u16, u8 *);
extern u16 (*EraseFlashChip)(void);
extern u16 (*EraseFlashSector)(u16);
extern u16 (*WaitForFlashWrite)(u8, u8 *, u8);
extern const u16 *gFlashMaxTime;
extern const struct FlashType *gFlash;
extern u8 (*PollFlashStatus)(u8 *);
extern u8 gFlashTimeoutFlag;
extern const struct FlashSetupInfo MX29L010;
extern const struct FlashSetupInfo LE26FV10N1TS;
extern const struct FlashSetupInfo DefaultFlash;
void SwitchFlashBank(u8 bankNum);
u16 ReadFlashId(void);
void StartFlashTimer(u8 phase);
void SetReadFlash1(u16 *dest);
void StopFlashTimer(void);
u16 WaitForFlashWrite_Common(u8 phase, u8 *addr, u8 lastData);
u16 EraseFlashChip_MX(void);
u16 EraseFlashSector_MX(u16 sectorNum);
u16 ProgramFlashSector_MX(u16 sectorNum, u8 *src);
#endif // GUARD_GBA_FLASH_INTERNAL_H
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