86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
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#ifndef GUARD_GBA_FLASH_INTERNAL_H
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#define GUARD_GBA_FLASH_INTERNAL_H
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#include "gba/gba.h"
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#define FLASH_BASE ((u8 *)0xE000000)
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#define FLASH_WRITE(addr, data) ((*(vu8 *)(FLASH_BASE + (addr))) = (data))
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#define FLASH_ROM_SIZE_1M 131072 // 1 megabit ROM
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#define SECTORS_PER_BANK 16
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struct FlashSector
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{
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u32 size;
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u8 shift;
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u16 count;
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u16 top;
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};
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struct FlashType {
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u32 romSize;
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struct FlashSector sector;
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u16 wait[2]; // game pak bus read/write wait
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// TODO: add support for anonymous unions/structs if possible
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union {
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struct {
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u8 makerId;
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u8 deviceId;
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} separate;
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u16 joined;
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} ids;
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};
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struct FlashSetupInfo
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{
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u16 (*programFlashByte)(u16, u32, u8);
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u16 (*programFlashSector)(u16, void *);
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u16 (*eraseFlashChip)(void);
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u16 (*eraseFlashSector)(u16);
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u16 (*WaitForFlashWrite)(u8, u8 *, u8);
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const u16 *maxTime;
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struct FlashType type;
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};
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extern u16 gFlashNumRemainingBytes;
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extern u16 (*ProgramFlashByte)(u16, u32, u8);
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extern u16 (*ProgramFlashSector)(u16, void *);
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extern u16 (*EraseFlashChip)(void);
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extern u16 (*EraseFlashSector)(u16);
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extern u16 (*WaitForFlashWrite)(u8, u8 *, u8);
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extern const u16 *gFlashMaxTime;
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extern const struct FlashType *gFlash;
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extern u8 (*PollFlashStatus)(u8 *);
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extern u8 gFlashTimeoutFlag;
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extern const struct FlashSetupInfo MX29L010;
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extern const struct FlashSetupInfo LE26FV10N1TS;
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extern const struct FlashSetupInfo DefaultFlash;
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void SwitchFlashBank(u8 bankNum);
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u16 ReadFlashId(void);
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void StartFlashTimer(u8 phase);
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void SetReadFlash1(u16 *dest);
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void StopFlashTimer(void);
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u16 SetFlashTimerIntr(u8 timerNum, void (**intrFunc)(void));
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u32 ProgramFlashSectorAndVerify(u16 sectorNum, u8 *src);
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void ReadFlash(u16 sectorNum, u32 offset, void *dest, u32 size);
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u32 ProgramFlashSectorAndVerifyNBytes(u16 sectorNum, void *dataSrc, u32 n);
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u16 WaitForFlashWrite_Common(u8 phase, u8 *addr, u8 lastData);
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u16 EraseFlashChip_MX(void);
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u16 EraseFlashSector_MX(u16 sectorNum);
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u16 ProgramFlashByte_MX(u16 sectorNum, u32 offset, u8 data);
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u16 ProgramFlashSector_MX(u16 sectorNum, void *src);
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// agb_flash_1m
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u32 IdentifyFlash(void);
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#endif // GUARD_GBA_FLASH_INTERNAL_H
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