mirror of
https://github.com/LNH-team/pico-loader.git
synced 2026-06-02 01:06:50 +02:00
6a97b677a7
- Supercard CF (SUPERCARDCF) - GBA Media Player CF (MPCF) - M3 Adapter CF (M3CF) - Max Media Dock CF (MMCF)
87 lines
3.5 KiB
C++
87 lines
3.5 KiB
C++
#pragma once
|
|
#include "common.h"
|
|
#include "sections.h"
|
|
#include "patches/PatchCode.h"
|
|
#include "thumbInstructions.h"
|
|
#include "../IReadSectorsPatchCode.h"
|
|
#include "../IWriteSectorsPatchCode.h"
|
|
#include "CompactFlashRegisters.h"
|
|
#include "ICompactFlashLockUnlockPatchCode.h"
|
|
|
|
DEFINE_SECTION_SYMBOLS(cf_perform_transfer);
|
|
DEFINE_SECTION_SYMBOLS(cf_read_write_functions);
|
|
|
|
extern "C" bool cf_performTransferSectors(u32 numSectors, u32 sector, u8 command, void* srcAddr, void* dstAddr);
|
|
|
|
extern "C" bool cf_readSectors(u32 sector, void* buffer, u32 numSectors);
|
|
extern "C" bool cf_writeSectors(u32 sector, void* buffer, u32 numSectors);
|
|
|
|
extern vu16* cf_performTransferSectors_reg_sector_count;
|
|
extern u32 cf_performTransferSectors_waitCardAvailableForCommands;
|
|
extern u32 cf_performTransferSectors_waitNextBlockReady;
|
|
|
|
extern vu16* cf_performTransfer_reg_data;
|
|
extern u32 cf_performTransfer_performTransferSectors;
|
|
extern u32 cf_performTransfer_lockUnlockCard;
|
|
|
|
extern u16 cf_performTransfer_unlock_label[2];
|
|
extern u16 cf_performTransfer_lock_label[2];
|
|
|
|
class CompactFlashTransferSectorPatchCode : public PatchCode
|
|
{
|
|
public:
|
|
CompactFlashTransferSectorPatchCode(PatchHeap& patchHeap,
|
|
const cf_registers_t& registers,
|
|
const CompactFlashStatusFunctionsPatchCode* compactFlashStatusFunctionsPatchCode)
|
|
: PatchCode(SECTION_START(cf_perform_transfer), SECTION_SIZE(cf_perform_transfer), patchHeap)
|
|
{
|
|
cf_performTransferSectors_reg_sector_count = registers.sectorCount;
|
|
cf_performTransferSectors_waitCardAvailableForCommands = (u32)compactFlashStatusFunctionsPatchCode->GetWaitCardAvailableForCommandsFunction();
|
|
cf_performTransferSectors_waitNextBlockReady = (u32)compactFlashStatusFunctionsPatchCode->GetWaitNextBlockReadyFunction();
|
|
}
|
|
|
|
const void* GetPerformTransferSectorsFunction() const
|
|
{
|
|
return GetAddressAtTarget((void*)cf_performTransferSectors);
|
|
}
|
|
};
|
|
|
|
class CompactFlashReadWriteSectorPatchCode : public PatchCode, public IReadSectorsPatchCode, public IWriteSectorsPatchCode
|
|
{
|
|
public:
|
|
CompactFlashReadWriteSectorPatchCode(PatchHeap& patchHeap,
|
|
const cf_registers_t& registers,
|
|
const CompactFlashTransferSectorPatchCode* compactFlashTransferSectorPatchCode,
|
|
const ICompactFlashLockUnlockPatchCode* lockUnlockCard)
|
|
: PatchCode(SECTION_START(cf_read_write_functions), SECTION_SIZE(cf_read_write_functions), patchHeap)
|
|
{
|
|
cf_performTransfer_reg_data = registers.data;
|
|
|
|
cf_performTransfer_performTransferSectors = (u32)compactFlashTransferSectorPatchCode->GetPerformTransferSectorsFunction();
|
|
|
|
if (lockUnlockCard)
|
|
{
|
|
cf_performTransfer_lockUnlockCard = (u32)lockUnlockCard->GetLockUnlockFunction();
|
|
}
|
|
else
|
|
{
|
|
// what is getting replaced is a `bl`, taking 4 bytes
|
|
const u16 noLockingOpcode = THUMB_MOV_HIREG(THUMB_HI_R8, THUMB_HI_R8);
|
|
cf_performTransfer_unlock_label[0] = noLockingOpcode;
|
|
cf_performTransfer_unlock_label[1] = noLockingOpcode;
|
|
cf_performTransfer_lock_label[0] = noLockingOpcode;
|
|
cf_performTransfer_lock_label[1] = noLockingOpcode;
|
|
}
|
|
}
|
|
|
|
const ReadSectorsFunc GetReadSectorsFunction() const override
|
|
{
|
|
return (const ReadSectorsFunc)GetAddressAtTarget((void*)cf_readSectors);
|
|
}
|
|
|
|
const WriteSectorsFunc GetWriteSectorFunction() const override
|
|
{
|
|
return (const WriteSectorsFunc)GetAddressAtTarget((void*)cf_writeSectors);
|
|
}
|
|
};
|